HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed....

29
( DOC No. HX8238-A -AN ) HX8238-A 960 x 240 TFT LCD Single Chip Digital Driver Preliminary version 01 December, 2006

Transcript of HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed....

Page 1: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

( DOC No. HX8238-A -AN )

HX8238-A

960 x 240 TFT LCD Single Chip Digital Driver Preliminary version 01 December, 2006

Page 2: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.1- Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

1. General Description The HX8238-A application note includes SPI commands, FPC pins, OLB resistance and application circuit. H-Sync (HSYNC), V-Sync (VSYNC), Data enable (DEN), and Clock (DOTCLK) from video decoder or other source.The interface follows digital 8-bit serial/24-bit parallel RGB, CCIR601 and CCIR656 input format.

HX8238-A is a single chip controller and driver LSI that integrated the power circuit. It can drive a maximum 960x240 dot graphics on a-TFT panel displays in 262K colors. HX8238-A has a low-voltage operation, 1.4 min. In addition, HX8238-A is equipped with a DC-DC converter control circuit that generates the supply voltage for source and gate drivers with minimum external components. A common voltage generation circuit is included to drive the TFT-display counter electrode. An integrated gamma control circuit is also included that can be adjusted by software commands to provide maximum flexibility and optimal display quality.

HX8238-A

960 x 240 TFT LCD Single Chip Digital Driver Preliminary Version 01

December, 2006

Page 3: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.2- Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

2.SPI commands setting

2.1 Serial Interface

The SPI is available through the chip select line (CSB), serial transfer clock line (SCK), serial data input (SDI), and serial data output (SDO). The Driver IC recognizes the start of data transfer at the falling edge of CSB input to initiate the transfer of start byte. It recognizes the end of data transfer at the rising edge of CSB input. The Driver IC is selected when the 6-bit chip address in the start byte transferred from the transmission device and the 6-bit device identification code assigned to the Driver IC are compared and both 6-bit data correspond. The identification code must be 011100. Two different chip addresses must be assigned to the Driver IC because the seventh bit of the start byte is assigned to a register select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. The eighth bit of the start byte is to specify read or write (R/W bit). The data are received when the R/W bit is 0, and are transmitted when the R/W bit is 1. After receiving the start byte, the Driver IC starts to transmit or receive data by byte. The data transmission adopts a format by which the MSB is first transmitted (9th SCK started). All Driver IC instructions consist of 16 bits and they are executed internally after two bytes are transmitted with the MSB first (IB15 to 0---9th ~24th SCK).

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

0 RS RW

CSB

SDI 1 1 1 DB

15DB14

DB13

DB12

DB11

DB10

DB9

DB

8

DB7

DB

6

DB5

DB

4DB3

DB2

DB1

DB0

00

MSB LSB

DB15

DB14

DB13

DB12

DB

11DB10

DB9

DB8

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

Device ID Index register setting/Instruction

Status read

SDO

Transfer starts Transfer ends

SCK

Figure 2.1 SPI Timing

Page 4: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.3- Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

2.2 Command Table Reg# Register R/W R/S IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0

R Index 0 0 * * * * * * * * * ID6 ID5 ID4 ID3 ID2 ID1 ID0

SR Status Read

1 0 L7 L6 L5 L4 L3 L2 L1 L0 0 0 0 0 0 0 0 0

R01h Driver output control

0 1 0 RL REV PINV BGR SM TB CPE 0 0 0 0 0 0 0 0

R02h LCD

driver AC control

0 1 0 0 0 0 0 0 B/C 0 NW7 NW6 NW5 NW4 NW3 NW2 NW1 NW0

R03h Power

control (1) 0 1 DCT3 DCT2 DCT1 DCT0 BTF BT2 BT1 BT0 DC3 DC2 DC1 DC0 AP2 AP1 AP0 0

R04h Data and color filter

control 0 1 0 0 0 0 0 PALM BLT1 BLT0 OEA1 OEA0 SEL2 SEL1 SEL0 SWD2 SWD1 SWD0

R05h Function control

0 1 GHN XDK GDIS LPF DEP CKP VSP HSP DEO DIT 0 PWM 0 FB2 FB1 FB0

R06h Reserved Reserved

R07h Reserved Reserved

R0Ah Contrast/

Brightness control

0 1 0 BR6 BR5 BR4 BR3 BR2 BR1 BR0 0 0 0 CON4 CON3 CON2 CON1 CON0

R0Bh Frame cycle

control 0 1 NO1 NO0 SDT1 SDT0 0 EQ2 EQ1 EQ0 0 0 0 0 0 0 0 0

R0Dh Power

control (3) 0 1 0 VRC2 VRC1 VRC0 0 0 VDS1 VDS0 0 0 VRH5 VRH4 VRH3 VRH2 VRH1 VRH0

R0Eh Power

control (4) 0 1 0 0 VCOMG VDV6 VDV5 VDV4 VDV3 VDV2 VDV1 VDV0 0 0 0 0 0 0

R0Fh Gate scan

starting Position

0 1 0 0 0 0 0 0 0 0 SCN7 SCN6 SCN5 SCN4 SCN3 SCN2 SCN1 SCN0

R16h Horizontal

Porch 0 1 XLIM8 XLIM7 XLIM6 XLIM5 XLIM4 XLIM3 XLIM2 XLIM1 XLIM0 0 0 0 0 0 0 0

R17h Vertical Porch

0 1 STH1 STH0 HBP6 HBP5 HBP4 HBP3 HBP2 HBP1 HBP0 VBP6 VBP5 VBP4 VBP3 VBP2 VBP1 VBP0

R1Eh Power

control (5) 0 1 0 0 0 0 0 0 0 0 nOTP VCM6 VCM5 VCM4 VCM3 VCM2 VCM1 VCM0

R27h Reserved Reserved R28h Reserved Reserved R29h Reserved Reserved R2Bh Reserved Reserved R30h

γ control (1)

0 1 0 0 0 0 0 PKP 12

PKP 11

PKP 10

0 0 0 0 0 PKP 02

PKP 01

PKP 00

R31h γ control

(2) 0 1 0 0 0 0 0

PKP 32

PKP 31

PKP 30

0 0 0 0 0 PKP 22

PKP 21

PKP 20

R32h γ control

(3) 0 1 0 0 0 0 0

PKP 52

PKP 51

PKP 50

0 0 0 0 0 PKP 42

PKP 41

PKP 40

R33h γ control

(4) 0 1 0 0 0 0 0

PRP 12

PRP 11

PRP 10

0 0 0 0 0 PRP 02

PRP 01

PRP 00

R34h γ control

(5) 0 1 0 0 0 0 0

PKN 12

PKN 11

PKN 10

0 0 0 0 0 PKN 02

PKN 01

PKN 00

R35h γ control

(6) 0 1 0 0 0 0 0

PKN 32

PKN 31

PKN 30

0 0 0 0 0 PKN 22

PKN 21

PKN 20

R36h γ control

(7) 0 1 0 0 0 0 0

PKN 52

PKN 51

PKN 50

0 0 0 0 0 PKN 42

PKN 41

PKN 40

R37h γ control

(8) 0 1 0 0 0 0 0

PRN 12

PRN 11

PRN 10

0 0 0 0 0 PRN 02

PRN 01

PRN 00

R3Ah γ control

(9) 0 1 0 0 0

VRP 14

VRP 13

VRP 12

VRP 11

VRP 10

0 0 0 0 VRP 03

VRP 02

VRP 01

VRP 00

R3Bh γ control

(10) 0 1 0 0 0

VRN 14

VRN 13

VRN 12

VRN 11

VRN 10

0 0 0 0 VRN 03

VRN 02

VRN 01

VRN 00

Table 2.1 Command table

Page 5: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.4-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

2.3 Driver Output Control (R01h)

R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 R L REV PINV BGR S M T B CPE 0 0 1 1 1 1 1 1

Figure 2.2 Driver output control

CPE: When CPE=0, internal charge pump circuit is shut down. When CPE=1, internal charge pump circuit is enabled.

REV: Displays all character and graphics display sections with reversal when REV = “1”. Since the grayscale level can be reversed, display of the same data is enabled on normally white and normally black panels. Source output level is indicated below.

Source output level

REV RGB data VCOM = ”H” VCOM = ”L”

0 00000H

: 3FFFFH

V0 :

V63

V63 :

V0

1 00000H

: 3FFFFH

V63 :

V0

V0 :

V63

Table 2.2 Source output level

PINV: When PINV=0, POL output is same phase with internal VCOM signal. When PINV=1, POL output phase is reversed with VCOM signal.

BGR: Selects the <R><G><B> arrangement. When BGR = “0” <R><G><B> color is assigned from S0.When BGR = “1” <B><G><R> color is assigned from S0.

SM: Change the division of gate driver. When SM = “0”, odd/even division (interlace mode) is selected. When SM = “1”, upper/lower division is selected. Select the division mode according to the mounting method.

TB: Selects the output shift direction of the gate driver. When TB = “1”, G0 shifts to G239. When TB = “0”, G239 shifts to G0.

RL: Selects the output shift direction of the source driver. When RL = “1”, S0 shifts to S959 and <R><G><B> color is assigned from S0. When RL = “0”, S959 shifts to S0 and <R><G><B> color is assigned from S959. Set RL bit and BGR bit when changing the dot order of R, G and B.

Note: The default setting of register bits REV, BGR, TB and RL are defined by the logic stage of corresponding hardware pins. These bits will override the hardware setting once software command was sent to set the bits.

Page 6: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.5-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

SM = 0 SM = 1

TB = 1 RL = 1

G0

S0 S959

G2

G4

G1

G3

G5

G237

G239

G236

G238

G0

S959S0

G2G4

G1G3G5

G237G239

G236G238

TB = 0 RL = 1

236

238

G0

S959S0

G2

G4

G1

G3

G5

G237

G239

G

G

G0

S959S0

G2G4

G1G3G5

G237G239

G236G238

TB = 1 RL = 0

G0

S959S0

G2

G4

G1

G3

G5

G237

G239

G236

G238

G0

S959S0

G2G4

G1G3G5

G237G239

G236G238

TB = 0 RL = 0

G0

S959S0

G2

G4

G1

G3

G5

G237

G239

G236

G238

G0

S959S0

G2G4

G1G3G5

G237G239

G236G238

Page 7: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.6-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

2.4 LCD-Driving-Waveform Control (R02h)

R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 0 0 0 0 0 B / C 0 NW7 MW6 NW5 NW4 NW3 NW2 NW1 NW0

Figure 2.3 LCD-driving-waveform control

B/C: When B/C = 0, frame inversion of the LCD driving signal is enabled. When B/C = 1, a N-line inversion waveform is generated and alternates in each N lines specified by bits NW7-0.

NW7-0: Specify the number of lines that will alternate at the N-line inversion setting (B/C = 1). NW7-0 alternate for every set value + 1 line.

2.5 Power control 1 (R03h) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 DCT3 DCT2 DCT1 DCT0 BTF BT2 BT1 BT0 DC3 DC2 DC1 DC0 AP2 AP1 AP0 0

Figure 2.4 Power control 1

DCT3-0: Set the step-up cycle of the step-up circuit for 8-color mode (CM = VDDIO). When the cycle is accelerated, the driving ability of the step-up circuit increases, but its current consumption increases too. Adjust the cycle taking into account the display quality and power consumption.

DCT3 DCT2 DCT1 DCT0 Step-up cycle

0 0 0 0 Fline x 14 0 0 0 1 Fline x 12 0 0 1 0 Fline x 10 0 0 1 1 Fline x 8 0 1 0 0 Fline x 7 0 1 0 1 Fline x 6 0 1 1 0 Fline x 5 0 1 1 1 Fline x 4 1 0 0 0 Fline x 3 1 0 0 1 Fline x 2 1 0 1 0 Fline x 1 1 0 1 1 Fline x 0.5 1 1 0 0 Fline x 0.25 1 1 0 1 Reserved 1 1 1 0 Reserved 1 1 1 1 Reserved

* Fline = horizontal frequency (Fline Typ. 15KHz)

Table2.4 Step-up cycle

BT2-0 & BTF: Control the step-up factor of the step-up circuit. Adjust the step-up factor according to the power supply voltage to be used.

BTF BT2 BT1 BT0 VGH output VGL output

0 0 0 0 VCIX2 X 3 - (VCIX2 X 3) + VCI

0 0 0 1 VCIX2 X 3 - (VCIX2 X 2)

0 0 1 0 VCIX2 X 3 - (VCIX2 X 3)

0 0 1 1 VCIX2 X 2 + VCI - (VCIX2 X 2) - VCI

0 1 0 0 VCIX2 X 2 + VCI - (VCIX2 X 2)

0 1 0 1 VCIX2 X 2 + VCI - (VCIX2 X 2) + VCI

0 1 1 0 VCIX2 X 2 - (VCIX2 X 2)

1 1 1 1 VCIX2 X 2 - (VCIX2 X 2) + VCI

1 X X X VCIX2 X 3 - VCIX2

Table 2.5 VGH and VGL booster ratio

Page 8: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.7-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

DC3-0: Set the step-up cycle of the step-up circuit for 262k-color mode (CM = VSS). When the cycle is accelerated, the driving ability of the step-up circuit increases, but its current consumption increases too. Adjust the cycle taking into account the display quality and power consumption.

DC3 DC2 DC1 DC0 Step-up cycle

0 0 0 0 Fline x 14 0 0 0 1 Fline x 12 0 0 1 0 Fline x 10 0 0 1 1 Fline x 8 0 1 0 0 Fline x 7 0 1 0 1 Fline x 6 0 1 1 0 Fline x 5 0 1 1 1 Fline x 4 1 0 0 0 Fline x 3 1 0 0 1 Fline x 2 1 0 1 0 Fline x 1 1 0 1 1 Fline x 0.5 1 1 0 0 Fline x 0.25 1 1 0 1 Reserved 1 1 1 0 Reserved 1 1 1 1 Reserved

* Fline = horizontal frequency (Fline Typ. 15KHz)

Table 2.6 Step-up cycle

AP2-0: Adjust the amount of current from the stable-current source in the internal operational amplifier circuit. When the amount of current becomes large, the driving ability of the operational-amplifier circuits increase. Adjust the current taking into account the power consumption. During times when there is no display, such as when the system is in a sleep mode, set AP2-0 = “000” to halt the operational amplifier circuit and the step-up circuits to reduce current consumption.

AP2 AP1 AP0 Op-amp power

0 0 0 Least

0 0 1 Small

0 1 0 Small to medium

0 1 1 Medium

1 0 0 Medium to large

1 0 1 Large

1 1 0 Large to Maximum

1 1 1 Maximum

Table 2.7 Op-amp power

Page 9: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.8-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

2.6 Input Data and Color Filter Control (R04h) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 0 0 0 0 PALM BLT1 BLT0 OEA1 OEA0 SEL2 SEL1 SEL0 SWD2 SWD1 SWD0

Figure2.5 Input data and color filter control

SWD2-0: Control and switch the relationship between the R, G, B data and color filter type.

R G B R G BRG B RG B R GB RG B

R G B R G B

RG B RG B

R G B R G BR GB RG B

……

SWD[2:0]=000 SWD [2:0]= 001

RG B RG B

SWD [2:0]=01X

SWD[2:0]=100

R GB RG B

SWD [2:0]= 101

RG B RG B

R G B R G B

R GB RG B

SWD[2:0]=110

R G B R G B

SWD[2:0]=111

R G B R G B

R G B R G B

RG B RG B

R G B R G BRG B RG B

R G B R G BRG B RG B

G1

G2

G3

G4

G240

G237

G238

G239

QXH

L

H

L

H

L

H

L

H

R GB RG B

RG B RG B

……

R GB RG BRG B RG B

R GB RG BRG B RG B

G1

G2

G3

G4

G240

G237

G238

G239

QXH

L

H

L

H

L

H

L

H

R G B R G B

R GB RG B

……

R G B R G BR GB RG B

R G B R G BR GB RG B

G1

G2

G3

G4

G240

G237

G238

G239

QXH

L

H

L

H

L

H

L

H

R G B R G BRG B RG B

……

R G B R G BRG B RG B

R G B R G BRG B RG B

G1

G2

G3

G4

G240

G237

G238

G239

QXH

L

H

L

H

L

H

L

H

R GB RG BRG B RG B

……

R GB RG BRG B RG B

R GB RG BRG B RG B

G1

G2

G3

G4

G 240

G237

G238

G239

QXH

L

H

L

H

L

H

L

H

R G B R G BR GB RG B

……

R G B R G BR GB RG B

R G B R G BR GB RG B

G1

G2

G3

G4

G240

G237

G238

G239

QXH

L

H

L

H

L

H

L

H

R G B R G B

R G B R G B

……

R G B R G B

R G B R G B

R G B R G BR G B R G B

G1

G2

G3

G4

G240

G237

G238

G239

QXH

L

L

L

L

L

L

L

L

Note:The QXH is used to control the input data sequence.

240

Lin

es

234

Lin

es

240

Lin

es

234

Lin

es

240

Lin

es

234

Lin

es

240L

ines

234L

ines

240L

ines

234L

ines

24

0Lin

es

23

4Lin

es

240

Lin

es

234

Lin

es

Table 2.8 Color filter type.

SEL2-0: Define the input interface mode.

SEL2 SEL1 SEL0 Format Operating Frequency

0 0 0 Parallel-RGB data format

(only support stripe type color filter) 6.5MHz

0 0 1 Serial-RGB data format 19.5MHz 0 1 0 CCIR 656 data format (640RGB) 24.54MHz 0 1 1 CCIR 656 data format (720RGB) 27MHz 1 0 0 YUV mode A data format (Cr-Y-Cb-Y) 24.54MHz 1 0 1 YUV mode A data format (Cr-Y-Cb-Y) 27MHz 1 1 0 YUV mode B data format (Cb-Y-Cr-Y) 27MHz 1 1 1 YUV mode B data format (Cb-Y-Cr-Y) 24.54MHz

Input format DOTCLK Freq (MHz) Display Data Active Area (DOTCLK)

24.54 640 1280 YUV mode

27 720 1440 Table2.9 Interface type.

Page 10: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.9-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

OEA1-0: Odd/Even filed advanced function.

OEA1 OEA0

0 0 Display Start @ VBP delay for Odd field and @ VBP-1 for Even field. 0 1 Display Start @ VBP delay for Odd field and @ VBP for Even field. 1 0 Display Start @ VBP delay for Odd field and @ VBP+1 for Even field. 1 1 No use

Table 2.10 Odd/even filed advanced function.

BLT[1:0]: Set the initial power on black image insertion time. 00: 10 fields 01: 20 fields 10: 40 fields 11: 80 fields PALM: Set the input data line number in PAL mode 0: 280 lines 1: 288 lines

2.7 Function Control (R05h) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 GHN XDK GDIS LPF DEP CKP VSP HSP DEO D I T 0 PWM 0 FB2 FB1 FB0

Figure 2.6 Function control

FB2-0: Set PWM feedback level adjustment. 000: 0.4V 001: 0.45V 010: 0.5V 011: 0.55V 100: 0.6V 101: 0.65V 110: 0.7V 111: 0.75V

PWM: When PWM=0, PWM function is disabled. When PWM=1, PWM function is enabled.

DIT: When DIT=0, dithering function is turned off. When DIT=1, dithering function is enabled.

DEO: When DEO=0, VSYNC/HSYNC are also needed in DE mode. Under this condition, vertical back porch is defined by VBP[6:0] and the horizontal first valid data is defined by DE signal. When DEO=1, only DEN signal is needed in DE mode.

HSP: When HSP=0, HSYNC is negative polarity. When HSP=1, HSYNC is positive polarity.

VSP: When VSP=0, VSYNC is negative polarity. When VSP=1, VSYNC is positive polarity.

CKP: When CKP=0, data is latched in CLK falling edge. When CKP=1, data is latched by CLK rising edge.

DEP: When DEP=0, DEN is negative polarity active. When DEP=1, DEN is positive polarity active.

LPF: When LPF=0, the low pass filter function in YUV mode is disabled. When LPF=1, the low pass filter function is YUV mode is enabled.

GDIS: When GDIS=0, VGL has no discharge path to VSS in standby mode. When GDIS=1, VGL will discharge to VSS in standby mode.

XDK: When XDK=0, VCIX2 is 2 stage pumping from VCI. (VCIX2=3 x VCI) When XDK=1, VCIX2 is 2 phase pumping from VCI. (VCIX2=2 x VCI)

GHN: When GHN=0, all gate outputs are forced to VGH. When GHN=1, gate driver is normal operation.

Page 11: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.10-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

2.8 Contrast/Brightness Control (R0Ah) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 BR6 BR5 BR4 BR3 BR2 BR1 BR0 0 0 0 CON4 CON3 CON2 CON1 CON0

Figure 2.7 Contrast/Brightness control

CON4-0: Display Contrast level adjustment. (0.125/step) Adjust range from 00h(level = 0)

to 1Fh(level = 3.875). Default value is 08h(level = 1). BR6-0: Display Brightness level adjustment. (2/step) Adjust range from 00h(level = -128)

to 7Fh(level = +126). Default value is 40h(level = 0). 2.9 Frame Cycle Control (R0Bh) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 N O 1 NO0 SDT1 SDT0 0 EQ2 EQ1 EQ0 0 0 0 0 0 0 0 0

Figure2.8 Frame cycle control

NO1-0: Sets amount of non-overlap of the gate output. NO1 NO0 Amount of non-overlap

0 0 1.5 us 0 1 3 us

1 0 4.5 us

1 1 6 us

Table 2.11 Amount of non-overlap

Figure 2.9 NO timing diagram

SDT1-0: Set delay amount from the gate output signal falling edge to the source outputs.

SDT1 SDT0 Delay amount of the source output

0 0 1 us 0 1 3 us

1 0 5 us

1 1 7 us

Table 2.12 Delay amount of the source output

EQ2-0: Sets the equalizing period. EQ2 EQ1 EQ0 EQ period

0 0 0 No EQ

0 0 1 3 us

0 1 0 4 us

0 1 1 5 us 1 0 0 6 us 1 0 1 7 us 1 1 0 8 us 1 1 1 9 us

Table2.13 EQ period

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-P.11-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

1 Line period 1 Line period

Gn

Sn

EQ

Delay amount of

The source output

Equalizing

Period

Figure 2.10 EQ timing diagram

2.10 Power Control 2 (R0Dh) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 VRC2 VRC1 VRC0 0 0 VDS1 VDS0 0 0 VRH5 VRH4 VRH3 VRH2 VRH1 VRH0

Figure 2.11 Power control 2

VRC[2:0]: set the VCIX2 charge pump voltage clamp.

VRC[2:0]=000, 5.1V

VRC[2:0]=001, 5.3V

VRC[2:0]=010, 5.5V

VRC[2:0]=011, 5.7V

VRC[2:0]=100, 5.9V

VRC[2:0]=101, reserved

VRC[2:0]=110, reserved

VRC[2:0]=111, reserved

VDS[1:0]: set the VDD regulator voltage if pin “REGVDD” is set to VDDIO.

VDS[1:0]=00, 1.8V

VDS[1:0]=01, 2V

VDS[1:0]=10, 2.2V

VDS[1:0]=11, 2.5V VRH5-0: Set amplitude magnification of VLCD63. These bits amplify the VLCD63

voltage 2.464 to 4.456 times the Vref voltage set by VRH5-0.

VRH5 VRH4 VRH3 VRH2 VRH1 VRH0 VLCD63Voltage VRH5 VRH4 VRH3 VRH2 VRH1 VRH0 VLCD63Voltage

0 0 0 0 0 0 Vref x 2.464 1 0 0 0 0 0 Vref x 3.464 0 0 0 0 0 1 Vref x 2.496 1 0 0 0 0 1 Vref x 3.496 0 0 0 0 1 0 Vref x 2.528 1 0 0 0 1 0 Vref x 3.528 0 0 0 0 1 1 Vref x 2.560 1 0 0 0 1 1 Vref x 3.560 0 0 0 1 0 0 Vref x 2.592 1 0 0 1 0 0 Vref x 3.592 0 0 0 1 0 1 Vref x 2.624 1 0 0 1 0 1 Vref x 3.629 0 0 0 1 1 0 Vref x 2.656 1 0 0 1 1 0 Vref x 3.664 0 0 0 1 1 1 Vref x 2.688 1 0 0 1 1 1 Vref x 3.701 0 0 1 0 0 0 Vref x 2.720 1 0 1 0 0 0 Vref x 3.736 0 0 1 0 0 1 Vref x 2.752 1 0 1 0 0 1 Vref x 3.762 0 0 1 0 1 0 Vref x 2.784 1 0 1 0 1 0 Vref x 3.787 0 0 1 0 1 1 Vref x 2.816 1 0 1 0 1 1 Vref x 3.813 0 0 1 1 0 0 Vref x 2.848 1 0 1 1 0 0 Vref x 3.840 0 0 1 1 0 1 Vref x 2.875 1 0 1 1 0 1 Vref x 3.880 0 0 1 1 1 0 Vref x 2.904 1 0 1 1 1 0 Vref x 3.920 0 0 1 1 1 1 Vref x 2.931 1 0 1 1 1 1 Vref x 3.960 0 1 0 0 0 0 Vref x 2.960 1 1 0 0 0 0 Vref x 4.000 0 1 0 0 0 1 Vref x 2.992 1 1 0 0 0 1 Vref x 4.027

Page 13: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.12-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

0 1 0 0 1 0 Vref x 3.024 1 1 0 0 1 0 Vref x 4.056 0 1 0 0 1 1 Vref x 3.056 1 1 0 0 1 1 Vref x 4.083 0 1 0 1 0 0 Vref x 3.088 1 1 0 1 0 0 Vref x 4.112 0 1 0 1 0 1 Vref x 3.123 1 1 0 1 0 1 Vref x 4.142 0 1 0 1 1 0 Vref x 3.160 1 1 0 1 1 0 Vref x 4.171 0 1 0 1 1 1 Vref x 3.195 1 1 0 1 1 1 Vref x 4.202 0 1 1 0 0 0 Vref x 3.232 1 1 1 0 0 0 Vref x 4.232 0 1 1 0 0 1 Vref x 3.259 1 1 1 0 0 1 Vref x 4.264 0 1 1 0 1 0 Vref x 3.288 1 1 1 0 1 0 Vref x 4.296 0 1 1 0 1 1 Vref x 3.315 1 1 1 0 1 1 Vref x 4.328 0 1 1 1 0 0 Vref x 3.344 1 1 1 1 0 0 Vref x 4.360 0 1 1 1 0 1 Vref x 3.374 1 1 1 1 0 1 Vref x 4.392 0 1 1 1 1 0 Vref x 3.403 1 1 1 1 1 0 Vref x 4.424 0 1 1 1 1 1 Vref x 3.434 1 1 1 1 1 1 Vref x 4.456

*Vref is the internal reference voltage equals to 1.25V.

Table 2.14 VLCD63 voltage

2.11 Power Control 3 (R0Eh) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0

W 1 0 0 VCOMG VDV6 VDV5 VDV4 VDV3 VDV2 VDV1 VDV0 0 0 0 0 0 0

Figure 2.12 Power control 3

VCOMG: When VCOMG = “1”, it is possible to set output voltage of VCOML to any level, and the instruction (VDV6-0) becomes available. When VCOMG = “0”, VCOML output is fixed to VSS level, VCIM output for VCOML power supply stops, and the instruction (VDV6-0) becomes unavailable. Set VCOMG according to the sequence of power supply setting flow as it relates with power supply operating sequence.

VDV6-0: Set the alternating amplitudes of VCOM at the VCOM alternating drive. These bits amplify VCOM amplitude 0.6 to 1.2525 times the VLCD63 voltage. When VCOMG = “0”, the settings become invalid. External voltage at VCOMR is referenced when VDV = “01111xx”.

VDV6 VDV5 VDV4 VDV3 VDV2 VDV1 VDV0 VCOM Amplitude

0 0 0 0 0 0 0 VLCD63 x 0.6000

0 0 0 0 0 0 1 VLCD63 x 0.6075

0 0 0 0 0 1 0 VLCD63 x 0.6150

0 0 0 0 0 1 1 VLCD63 x 0.6225

0 0 0 0 1 0 0 VLCD63 x 0.6300

: : :

: Step = 0.0075

:

0 1 1 1 0 1 0 VLCD63 x 1.0350

0 1 1 1 0 1 1 VLCD63 x 1.0425

0 1 1 1 1 * * Reference from external voltage

(VCOMR)

1 0 0 0 0 0 0 VLCD63 x 1.0500

1 0 0 0 0 0 1 VLCD63 x 1.0575

: : :

: Step = 0.0075

:

1 0 1 1 0 1 0 VLCD63 x 1.2450

1 0 1 1 0 1 1 VLCD63 x 1.2525

1 0 1 1 1 * * Reserved

1 1 * * * * * Reserved

Table 2.15 VCOM amplitude

Page 14: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.13-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

2.12 Gate Scan Position (R0Fh) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 0 0 0 0 0 0 0 SCN7 SCN6 SCN5 SCN4 SCN3 SCN2 SCN1 SCN0

Figure2.13 Gate scan position

SCN8-0: Set the scanning starting position of the gate driver.

HIMAX

TECHNOLOGIES

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TECHNOLOGIES

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HIMAX

G0

G239

1st line of

data

SCN7-0

= 00000000

G0

G239

G30 1st

line of

data

SCN7-0

= 00011110

Figure 2.14 Gate scan display position

2.13 Horizontal Porch (R16h) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 XLIM8 X L IM7 XLIM6 XLIM5 XLIM4 XLIM3 XLIM2 XLIM1 XLIM0 0 0 0 0 0 0 0

Figure 9. 1 Horizontal Porch

XLIM8-0: Set the number of valid pixel per line. XLIM8 XLIM7 XLIM6 XLIM5 XLIM4 XLIM3 XLIM2 XLIM1 XLIM0 No. of pixel per line

0 0 0 0 0 0 0 0 0 1

0 0 0 0 0 0 0 0 1 2

0 0 0 0 0 0 0 1 0 3

: : :

: Step = 1

:

1 0 0 1 1 1 1 1 0 319

1 0 0 1 1 1 1 1 1 320

1 0 1 ∗ ∗ ∗ ∗ ∗ ∗ Reserved

1 1 ∗ ∗ ∗ ∗ ∗ ∗ ∗ Reserved

Table 2.16 No. of pixel per line

2.14 Vertical Porch (R17h) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 STH1 STH0 HBP6 HBP5 HBP4 HBP3 HBP2 HBP1 HBP0 VBP6 VBP5 VBP4 VBP3 VBP2 VBP1 VBP0

Figure 2.45 Vertical porch

HBP6-0: Set the delay period from falling edge of HSYNC signal to first valid data. The pixel data exceed the range set by XLIM8-0 and before the first valid data will be treated as dummy data. The setting is only effective in SYNC mode timing.

HBP6 HBP5 HBP4 HBP3 HBP2 HBP1 HBP0

No. of

clock

cycle 0 0 0 0 0 0 0 Can’t set

0 0 0 0 0 0 1 Can’t set

0 0 0 0 0 1 0 Can’t set

0 0 0 0 0 1 1 Can’t set

0 0 0 0 1 0 0 Can’t set

0 0 0 0 1 0 1 Can’t set 0 0 0 0 1 1 0 Can’t set 0 0 0 0 1 1 1 Can’t set 0 0 0 1 0 0 0 Can’t set 0 0 0 1 0 0 1 9

Page 15: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.14-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

: Step = 1

:

1 1 1 1 1 1 0 126

1 1 1 1 1 1 1 127

Table 2.17 No. of clock cycle of clock

Cycle time of HSYNC

Set by HBP6-0 Set by XLIM8-0

HSYNC

Pixel Data

DOTCLK

Default 320 pixels per line

10 clock cycles of DOTCLKHBP6-0 = 00001000

D0 D1 D2 D317 D318 D319Dummy Dummy

Figure 2.16 No. of clock cycle of clock

STH1-0: Adjust the first valid data by dot clock. This setting is not valid in parallel RGB

input interface. STH = 00: +0 dot clock STH = 01: +1 dot clock STH = 10: +2 dot clock STH = 11: +3 dot clock VBP6-0: Set the delay period from falling edge of VSYNC to first valid line. The line data

within this delay period will be treated as dummy line. The setting is only effective in SYNC mode timing.

VBP6 VBP5 VBP4 VBP3 VBP2 VBP1 VBP0 No. of clock cycle of

HSYNC

0 0 0 0 0 0 0 Can’t set

0 0 0 0 0 0 1 Can’t set

0 0 0 0 0 1 0 2

0 0 0 0 0 1 1 3

0 0 0 0 1 0 0 4

: Step = 1

:

1 1 1 1 1 0 0 124

1 1 1 1 1 0 1 125

1 1 1 1 1 1 0 126

1 1 1 1 1 1 1 127

Table 2.18 No. of clock cycle of HSYNC

Page 16: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.15-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

Cycle time of VSYNC

Set by VBP6-0

VSYNC

HSYNC

Dummy Lines Dummy Lines1st Line Last Line

Figure 2.17 No. of clock cycle of HSYNC

2.15 Power Control 4 (R1Eh) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0

W 1 0 0 0 0 0 0 0 0 nOTP VCM6 VCM5 VCM4 VCM3 VCM2 VCM1 VCM0

Figure2.18 Power control 4

nOTP: nOTP equals to “0” after power on reset and VCOMH voltage equals to

programmed OTP value. When nOTP set to “1”, setting of VCM6-0 becomes valid and voltage of VCOMH can be adjusted.

VCM6-0: Set the VCOMH voltage if nOTP = “1”. These bits amplify the VCOMH voltage 0.36 to 0.995 times the VLCD63 voltage.

VCM6 VCM5 VCM4 VCM3 VCM2 VCM1 VCM0 VCOMH

0 0 0 0 0 0 0 VLCD63 x 0.360 0 0 0 0 0 0 1 VLCD63 x 0.365 0 0 0 0 0 1 0 VLCD63 x 0.370 0 0 0 0 0 1 1 VLCD63 x 0.375 0 0 0 0 1 0 0 VLCD63 x 0.380

: : :

: :

: Step = 0.005

:

1 1 1 1 1 0 0 VLCD63 x 0.980 1 1 1 1 1 0 1 VLCD63 x 0.985 1 1 1 1 1 1 0 VLCD63 x 0.990 1 1 1 1 1 1 1 VLCD63 x 0.995

Note: 2V < VCOMH < VLCD63 Table 2.19 VCOMH

Page 17: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.16-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

2.16 Gamma Control 1 (R30h to R37h) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 0 0 0 0 PKP1 PKP1 PKP1 0 0 0 0 0 PKP0 PKP0 PKP0

W 1 0 0 0 0 0 PKP3 PKP3 PKP3 0 0 0 0 0 PKP2 PKP2 PKP2

W 1 0 0 0 0 0 PKP5 PKP5 PKP5 0 0 0 0 0 PKP4 PKP4 PKP4

W 1 0 0 0 0 0 PRP1 PRP1 PRP1 0 0 0 0 0 PRP0 PRP0 PRP0

W 1 0 0 0 0 0 PKN1 PKN1 PKN1 0 0 0 0 0 PKN0 PKN0 PKN0

W 1 0 0 0 0 0 PKN3 PKN3 PKN3 0 0 0 0 0 PKN2 PKN2 PKN2

W 1 0 0 0 0 0 PKN5 PKN5 PKN5 0 0 0 0 0 PKN4 PKN4 PKN4

W 1 0 0 0 0 0 PRN1 PRN1 PRN1 0 0 0 0 0 PRN0 PRN0 PRN0

Figure 2.19 Gamma control 1

PKP52–00: Gamma micro adjustment register for the positive polarity output. PRP12-00: Gradient adjustment register for the positive polarity output. PKN52-00: Gamma micro adjustment register for the negative polarity output. PRN12-00: Gradient adjustment register for the negative polarity output.

2.17 Gamma Control 2 (R3Ah to R3Bh) R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0 W 1 0 0 0 VRP14 VRP13 VRP12 VRP11 VRP10 0 0 0 0 VRP03 VRP02 VRP01 VRP00

W 1 0 0 0 VRN14 VRN13 VRN12 VRN11 VRN10 0 0 0 0 VRN03 VRN02 VRN01 VRN00

Figure 2.20 Gamma control 2

VRP14-00: Adjustment register for amplification adjustment of the positive polarity output.

VRN14-00: Adjustment register for the amplification adjustment of the negative polarity output.

(Refer to Gamma Adjustment Function for details)

Page 18: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.17-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

3.Application Circuit

3.1 PWM Boost Converter

C547uF/16V

Q1MOSFET N 3400

C70.1u

L122uHTAYIO

LB2012T220C147uF

R4

27

R1 0

R2

1K

C62.2uF

D2

BZX84C15/SOT

R3 1K

C410uF/16V

D1 RB520S-30

VLED-

VLED+

VFB

C31uF/16V

C20.1uF/16V

DRV

+3.3V

Figure 3.1 PWM Boost Converter

3.2 Booster capacitors

CXP

CXN

CYP

CYN

C1P

C1N

C2P

C2N

C3P

C3N

CP

CN

6.3V

6.3V

6.3V

16V

All capacitors

are ceramic

0.1~0.33uF

16V

16V

Figure 3.2 Booster capacitors

Page 19: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.18-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

3.3 Power supply pins connections

REGVDD = VDDIO

1.8V > System Vdd REGVDD = VSS

Regulator

VDD

VDDIO

VCI

REGVDD

VSS

System Vdd

Analog power

2.5~3.6V

Regulator

VDD

VDDIO

VCI

REGVDD

VSS

System Vdd

Analog power

2.5~3.6V

System Vdd > 2.5V or 2.5V ≧ System Vdd ≧ 1.8V

Figure 3.3 Power supply pins connections

Page 20: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.19-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

3.4 Filtering and charge sharing capacitors

* VCI

* VCIP

* VCIM

*VCIX2

VLCD63

VGH

VGL

VCOMH

VCOML

6.3V

6.3V

6.3V

6.3V

6.3V

16V

16V

6.3V

6.3V

* VSS

Polarity depends on VCOML setting

All capacitors are ceramic 1uF

3 schottky barrier diode

VF=0.4V/20mA

VR=30V

Figure 3.4 Filtering and charge sharing capacitors

1.Capacitors on VCI should be 4.7uF. 2.Capactiors on VCIP should be 1uF 3.Capacitor on VCIX2 should be 3.3uF 4.Capacitors on VGH, VGL, VCIM should be 2.2uF 5.Other capacitors should be 1uF * VCIX2 should be separate with VCIX2J at ITO layout to provide noise free path * VCI should be separate with VCIP at ITO layout to provide noise free path * VSS should be separate with VCHS, AVSS and VSSRC at ITO layout to provide noise free path

Figure 3.5 Panel and FPC connection

Page 21: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.20-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

3.5 Panel connection example

VCI/VCIP/V

CIX

2J

VSS/A

VSS

VSSRC/V

CHS

VDD/V

DDIO

External

Component

pins

RESB

CSB

SCK

SDI

SDO

SHUT

CM

BGR

REV

SWD

SEL

CPE

TB

RL

960 X 240

TFT Panel

Cs on Common

G0-G239 S0-S959 VCOM

RR[7:0]

GG[7:0]

BB[7:0]

HSYNC

VSYNC

DOTCLK

DEN

Power/G

round

Refer to figure 3.1~3.4

QXH

POL

MCU serial interface

and control

Hardware Setting Pins

Dump driver

Output to control

960

240

Figure 3.6 Panel connection example.

Page 22: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

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VSS

EXVR

DRV

AVSS

VSS

VCOML

VCOMH

VCOM

VSSRC

VCHS

VFB

C2P

C3N

C3P

VGH

VCOMR

VDD

CN

CP

VGL

C2N

CYP

CXN

CXP

VDDIO

VCIP

VCI

C1N

VLCD63

VCIX2J

VCIX2

CYN

SWD2

PINV

CPE

VCIM

C1P

BGR

SEL0

SEL1

SEL2

SWD0

SWD1

TB

REV

REGVDD

RL

CM

DEN

HSYNC

VSYNC

SHUT

DOTCLK

RR2

RR3

RR4

RR5

RR6

RR7

GG5

GG6

GG7

RR0

RR1

GG0

GG1

GG2

GG3

GG4

BB2

BB3

BB4

BB5

BB6

BB7

CSB

SCK

SDI

BB0

BB1

QXH

POL

SDO

RESB

U6

DRV1

VFB2

VCHS3

VSSRC4

VCOM5

VCOMH6

VCOML7

VCOMR8

VGH9

C3P10

C3N11

C2P12

C2N13

VGL14

CP15

CN16

VDD17

VCI18

VCIP19

VDDIO20

CXP21

CXN22

CYP23

CYN24

VCIX225

VCIX2J26

VLCD6327

C1N28

C1P29

VCIM30

PINV31

CPE32

SWD233

SWD134

SWD035

SEL236

SEL137

SEL038

BGR39

CM40

RL41

REGVDD42

REV43

TB44

SHUT45

DOTCLK46

VSYNC47

HSYNC48

DEN49

RR750

RR651

RR552

RR453

RR354

RR255

RR156

RR057

GG758

GG659

GG560

GG461

GG362

GG263

GG164

GG065

BB766

BB667

BB568

BB469

BB370

BB271

BB172

BB073

SDI74

SCK75

CSB76

RESB77

SDO78

POL79

QXH80

VSS81

EXVR82

AVSS83

DRV1

VFB2

VCHS3

VSSRC4

VCOM5

VCOMH6

VCOML7

VCOMR8

VGH9

C3P10

C3N11

C2P12

C2N13

VGL14

CP15

CN16

VDD17

VCI18

VCIP19

VDDIO20

CXP21

CXN22

CYP23

CYN24

VCIX225

VCIX2J26

VLCD6327

C1N28

C1P29

VCIM30

PINV31

CPE32

SWD233

SWD134

SWD035

SEL236

SEL137

SEL038

BGR39

CM40

RL41

REGVDD42

REV43

TB44

SHUT45

DOTCLK46

VSYNC47

HSYNC48

DEN49

RR750

RR651

RR552

RR453

RR354

RR255

RR156

RR057

GG758

GG659

GG560

GG461

GG362

GG263

GG164

GG065

BB766

BB667

BB568

BB469

BB370

BB271

BB172

BB073

SDI74

SCK75

CSB76

RESB77

SDO78

POL79

QXH80

VSS81

EXVR82

AVSS83

DRV

VFB

EXVR

VSS

VSSRC

VCHS

VFB

DRV

AVSS

C3P

VGH

VCOMR

VCOML

VCOMH

VCOM

CP

VGL

C2N

C2P

C3N

VDDIO

VCIP

VCI

VDD

CN

VCIX2J

VCIX2

CYN

CYP

CXN

CXP

CPE

VCIM

C1P

C1N

VLCD63

SEL2

SWD0

SWD1

SWD2

PINV

REGVDD

RL

CM

BGR

SEL0

SEL1

VSYNC

SHUT

DOTCLK

TB

REV

RR5

RR6

RR7

DEN

HSYNC

GG7

RR0

RR1

RR2

RR3

RR4

VCHS

GG2

GG3

GG4

GG5

GG6

BB5

BB6

BB7

GG0

GG1

SDI

BB0

BB1

BB2

BB3

BB4

POL

SDO

RESB

CSB

SCK

QXH

VSSRC

Gla

ss9

60

*240

G00

G02

G03

G01

G236

G237

G238

G239

S0

S1

S2

S958

S959

G00

G01

G02

G03

G236

G237

G238

G239

S479

S480

S481

S957

VCOM

VLED+

VLED-

VCOMH

VCOML

VGHU7

CO

N85 DRV

1

VFB2

VCHS3

VSSRC4

VCOM5

VCOMH6

VCOML7

VCOMR8

VGH9

C3P10

C3N11

C2P12

C2N13

VGL14

CP15

CN16

VDD17

VCI18

VCIP19

VDDIO20

CXP21

CXN22

CYP23

CYN24

VCIX225

VCIX2J26

VLCD6327

C1N28

C1P29

VCIM30

PINV31

CPE32

SWD233

SWD134

SWD035

SEL236

SEL137

SEL038

BGR39

CM40

RL41

REGVDD42

REV43

TB44

SHUT45

DOTCLK46

VSYNC47

HSYNC48

DEN49

RR750

RR651

RR552

RR453

RR354

RR255

RR156

RR057

GG758

GG659

GG560

GG461

GG362

GG263

GG164

GG065

BB766

BB667

BB568

BB469

BB370

BB271

BB172

BB073

SDI74

SCK75

CSB76

RESB77

SDO78

POL79

QXH80

VSS81

EXVR82

AVSS83

VLED+84

VLED-85

VCOMR

PANEL

U5

HX8238A

THROUGH1(1)

THROUGH2(1)

DUMMY(1)

DRV(2)

VFB(2)

DUMMY(1)

VCHS(10)

VSSRC(8)

VCOM(4)

VCOMH(4)

VCOML(4)

VCOMR(2)

TEST16(1)

TEST17(1)

VGH(5)

C3P(3)

C3N(3)

C2P(3)

C2N(3)

VGL(5)

CP(3)

CN(3)

DUMMY(1)

VDD(6)

VCI(6)

VCIP(6)

VDDIO(6)

CXP(6)

CXN(6)

CYP(6)

CYN(6)

VCIX2(6)

VCIX2J(6)

VLCD63(6)

C1N(5)

C1P(5)

VCIM(5)

DUMMY(1)

PINV(1)

CPE(1)

VSS(1)

SWD2(1)

VDDIO(1)

SWD1(1)

VSS(1)

SWD0(1)

VDDIO(1)

SEL2(1)

SEL1(1)

SEL0(1)

VSS(1)

BGR(1)

VDDIO(1)

CM(1)

VSS(1)

RL(1)

VDDIO(1)

REGVDD(1)

VSS(1)

REV(1)

VDDIO(1)

TB(1)

VSS(1)

SHUT(2)

DOTCLK(2)

VSYNC(2)

HSYNC(2)

DEN(2)

RR7(2)

RR6(2)

RR5(2)

RR4(2)

RR3(2)

RR2(2)

RR1(2)

RR0(2)

GG7(2)

GG6(2)

GG5(2)

GG4(2)

GG3(2)

GG2(2)

GG1(2)

GG0(2)

BB7(2)

BB6(2)

BB5(2)

BB4(2)

BB3(2)

BB2(2)

BB1(2)

BB0(2)

SDI(2)

SCK(2)

CSB(2)

RESB(2)

SDO(2)

POL(1)

QXH(1)

DUMMY(1)

TEST4(1)

TEST5(1)

TEST6(1)

TEST7(1)

TEST8(1)

TEST9(1)

TEST10(1)

TEST11(1)

TEST12(1)

TEST13(1)

TEST14(1)

TEST15(1)

DUMMY(1)

VSS(8)

EXVR(4)

AVSS(10)

DUMMY(1)

VCOM(4)

DUMMY(1)

THROUGH3(1)

THROUGH4(1)

DUMMY(1)

THROUGH5(1)

THROUGH6(1)

DUMMY(2)

G1

G3

G5

G7

G235

G237

G239

DUMMY(6)

S0

S1

S2

S3

S955

S957

S958

S959

DUMMY(9)

G238

G236

G234

G232

G6

G4

G2

G0

DUMMY(2)

THROUGH7(1)

THROUGH8(1)

DUMMY(1)

Note: VCOM for test

C3P

C2N

C2P

C3N

CP

VGL

CN

VDD

VDDIO

VCIP

VCI

CXP

CXN

VCIX2

CYN

CYP

VLCD63

VCIX2J

VCIM

C1P

C1N

CPE

PINV

SWD2

SWD1

SEL2

SWD0

SEL0

SEL1

BGR

CM

RL

REV

REGVDD

TB

DOTCLK

SHUT

VSYNC

HSYNC

DEN

RR6

RR7

RR3

RR4

RR5

RR0

RR1

RR2

GG6

GG7

GG5

GG4

GG2

GG3

GG0

GG1

BB5

BB6

BB7

BB2

BB3

BB4

BB0

BB1

SDI

SCK

SDO

RESB

CSB

QXH

POL

DRV

VFB

VCHS

VSSRC

VCOMR

VCOML

VCOMH

VCOM

VGH

C3N

C3P

CN

CP

VGL

C2N

C2P

EXVR

VSS

VCOM

AVSS

VDD

CXN

CXP

VDDIO

VCIP

VCI

VLCD63

VCIX2J

VCIX2

CYN

CYP

VCIM

C1P

C1N

CPE

PINV

SWD2

SWD1

SWD0

SEL2

SEL0

SEL1

BGR

CM

RL

REGVDD

REV

TB

DOTCLK

RR7

DEN

HSYNC

VSYNC

SHUT

RR2

RR3

RR4

RR5

RR6

GG5

GG6

GG7

RR0

RR1

BB7

GG0

GG1

GG2

GG3

GG4

BB2

BB3

BB4

BB5

BB6

CSB

SCK

SDI

BB0

BB1

QXH

POL

SDO

RESB

Fig

ure

3.7

FP

C a

nd

Gla

ss la

yo

ut w

ith in

tern

al c

ha

rge

pum

b

Page 23: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.22-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

3.7 FPC, Power connection and LED Backlight Driving Circuit with internal charge pumb

CP

AVSS

CN

CPCN

EXVR1

CXP

CXN

CYN

CYP

CXPCXN

VCOML

VCOMH

VCOM

VGL

VGH

VCOMR

DOTCLK

VLCD63

VSYNC

SDI

DEN

HSYNC

CYPCYN

CSB

SCK

SDO

VLED-

VLED+

VDDA

C1N

C1P

VD

DIO

REGVDD

RL

C1N

CM

BGR

C1P

SHUT

TB

REV

VCIX2VCIX2J

VFBDRV

VCOM

near connector

near connector

near connectorV

DD

IO

SWD1

SWD2

PINV

CPE

for VCIX2J from external voltage

for VCOMR from external voltage

Note: The crcuit is on the condition what follows

1.SYSTEM VDD=2.5V~3.6V,REGVDD="H"

2.Strip panel,SWD[2:0]=111

3.Parallel RGB input mode,SEL[2:0]=000

4.from left to right,RL="H"

5.from up to down,TB="H"

6.Normally white,REV="H"

7.Use internal voltage

DRV

RESB

VD

DIO

VCIX2J

VCIX2

R3 0

C270.1u/16V

C320.1u/16V

R190

R37NC

C6

10uF

R140 C33

0.1uF/16V

R290

T3JP

1

C312.2uF/16V

C38

0.1uF/6.3V

C2310uF

R26NC

R5 NC

L6

BEAD

R170

R38NC

C2647uF

C3047uF/16V

C81uF

D2 RB520S-30

C13

10uF

VCI

R410

R24NC

D3

BZX84C15/SOT

C17

3.3uF/6.3V

R39NC

R7

2K

C910uF

C12

10uF

C182.2uF/6.3V

C210.1u

C2

2.2uF/16VC5

10uF

VCIP

R13NC

R1

0

R12NCR20

0

C2910uF/16V

T2JP

1

C281uF/16V

C1

4.7uF/6.3V

R25NC

L7

BEAD

R8 0

C36

0.1uF/6.3V

R40NC

RET1

Q1MOSFET N 3400

C20

10uF

R18NC

VR1

20K

1 3

2

C151uF

T9JP

1

C10

2.2uF/16V

L5

BEAD

T1JP

1

VCI

R300

C4

1uF/6.3V

R430

T4JP

1

R210

R36NC

R350

T7JP

1

D1

RB520-30

R28 0

R160

T13JP

1

C39

0.1uF/6.3V

T8JP

1

C35

0.1uF/16V

C1610uF

R150R23

0

R11

27

T17JP

1

C221uF

T14JP

1

R32NC

U1

CON85

DRV1

VFB2

VCHS3

VSSRC4

VCOM5

VCOMH6

VCOML7

VCOMR8

VGH9

C3P10

C3N11

C2P12

C2N13

VGL14

CP15

CN16

VDD17

VCI18

VCIP19

VDDIO20

CXP21

CXN22

CYP23

CYN24

VCIX225

VCIX2J26

VLCD6327

C1N28

C1P29

VCIM30

PINV31

CPE32

SWD233

SWD134

SWD035

SEL236

SEL137

SEL038

BGR39

CM40

RL41

REGVDD42

REV43

TB44

SHUT45

DOTCLK46

VSYNC47

HSYNC48

DEN49

RR750

RR651

RR552

RR453

RR354

RR255

RR156

RR057

GG758

GG659

GG560

GG461

GG362

GG263

GG164

GG065

BB766

BB667

BB568

BB469

BB370

BB271

BB172

BB073

SDI74

SCK75

CSB76

RESB77

SDO78

POL79

QXH80

VSS81

EXVR82

AVSS83

VLED+84

VLED-85

C140.1u

C37

1uF

L422uHTAYIO

LB2012T220

R271K

T6JP

1

T15JP

1

T18JP

1

C3

1uF/6.3V

R4 0

VLED+

T10JP

1

R6

5.1K

C11

1uF/6.3V

C70.1u

R220

R33NC

R2

NC

T5JP

1

R9 1K

R34NC

T12JP

1

R31NC

C241uF/6.3V

C25

2.2uF/6.3V

L1

BEAD

VLED-

L3

BEADC19

10uF

L2

BEAD

R420

R10 1K

T11JP

1

T16JP

1

C34

0.1uF/16V

SYSTEM VDD

2.5V~3.6V

+3.3V

9V

5.0V~6.0VVCIP

POLQXH

RESBSDO

SCKSDIBB0

CSB

BB1BB2BB3BB4

VDDIO

BB5

EXVR1

VCHSVSSRC

BB6BB7GG0

GG4GG3GG2GG1

GG7GG6GG5

RR0RR1

RR6RR5RR4RR3RR2

VSS

RR7

AVSS

VDDIO

DEN

SHUTDOTCLKVSYNCHSYNC

BGRCMRLREGVDDREVTB

SEL0

SEL2SEL1

PINVCPESWD2SWD1SWD0

VCOMR

VCOMR

VFB

C3PC3N

VLED+

C2PC2N

VSS

VLED-

SWD0

SEL2

C3P

C3N

SEL0

SEL1

VCHS

C2P

C2N

VSSRC

Figure 3.8 FPC, Power connection and LED Backlight Driving Circuit with internal charge pumb

Page 24: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P

.23

- H

ima

x C

onfid

en

tial

De

c, 2

00

6

This

info

rmatio

n c

onta

ined h

ere

in is

the e

xclu

siv

e p

roperty

of H

imax a

nd s

hall n

ot b

e d

istrib

ute

d, re

pro

duced, o

r dis

clo

sed

in w

hole

or in

part w

ithout p

rior w

ritten p

erm

issio

n o

f Him

ax. S

ubje

ct to

change w

ithout n

otic

e.

HX8238-A

960x 2

40 T

FT

LC

D S

ingle

Chip

Dig

ital D

river

A

N P

relim

inary

V01

3.8

FP

C a

nd

Gla

ss la

yo

ut w

itho

ut in

tern

al c

ha

rge

pu

mb

VCIP

Note: The circuit is on the condition what follows

1.2.2K-color display mode,CM="L"

2.normal operating mode,SHUT="L"

3.normally white panel,REV="H"

4.RGB mapping,BGR="L"

5.stripe panel,SWD[2:0]="111"

6.disable internal charge bump,CPE="L"

TB

U4

HX8238A

THROUGH1(1)

THROUGH2(1)

DUMMY(1)

DRV(2)

VFB(2)

DUMMY(1)

VCHS(10)

VSSRC(8)

VCOM(4)

VCOMH(4)

VCOML(4)

VCOMR(2)

TEST16(1)

TEST17(1)

VGH(5)

C3P(3)

C3N(3)

C2P(3)

C2N(3)

VGL(5)

CP(3)

CN(3)

DUMMY(1)

VDD(6)

VCI(6)

VCIP(6)

VDDIO(6)

CXP(6)

CXN(6)

CYP(6)

CYN(6)

VCIX2(6)

VCIX2J(6)

VLCD63(6)

C1N(5)

C1P(5)

VCIM(5)

DUMMY(1)

PINV(1)

CPE(1)

VSS(1)

SWD2(1)

VDDIO(1)

SWD1(1)

VSS(1)

SWD0(1)

VDDIO(1)

SEL2(1)

SEL1(1)

SEL0(1)

VSS(1)

BGR(1)

VDDIO(1)

CM(1)

VSS(1)

RL(1)

VDDIO(1)

REGVDD(1)

VSS(1)

REV(1)

VDDIO(1)

TB(1)

VSS(1)

SHUT(2)

DOTCLK(2)

VSYNC(2)

HSYNC(2)

DEN(2)

RR7(2)

RR6(2)

RR5(2)

RR4(2)

RR3(2)

RR2(2)

RR1(2)

RR0(2)

GG7(2)

GG6(2)

GG5(2)

GG4(2)

GG3(2)

GG2(2)

GG1(2)

GG0(2)

BB7(2)

BB6(2)

BB5(2)

BB4(2)

BB3(2)

BB2(2)

BB1(2)

BB0(2)

SDI(2)

SCK(2)

CSB(2)

RESB(2)

SDO(2)

POL(1)

QXH(1)

DUMMY(1)

TEST4(1)

TEST5(1)

TEST6(1)

TEST7(1)

TEST8(1)

TEST9(1)

TEST10(1)

TEST11(1)

TEST12(1)

TEST13(1)

TEST14(1)

TEST15(1)

DUMMY(1)

VSS(8)

EXVR(4)

AVSS(10)

DUMMY(1)

VCOM(4)

DUMMY(1)

THROUGH3(1)

THROUGH4(1)

DUMMY(1)

THROUGH5(1)

THROUGH6(1)

DUMMY(2)

G1

G3

G5

G7

G235

G237

G239

DUMMY(6)

S0

S1

S2

S3

S955

S957

S958

S959

DUMMY(9)

G238

G236

G234

G232

G6

G4

G2

G0

DUMMY(2)

THROUGH7(1)

THROUGH8(1)

DUMMY(1)

U5

VCHS1

VSSRC2

VCOM3

VGH4

VGL5

VDD6

VCI7

VCIP8

VDDIO9

VCIX210

VCIX2J11

VLCD6312

PINV13

CPE14

SWD215

SWD116

SWD017

SEL218

SEL119

SEL020

BGR21

CM22

RL23

REGVDD24

REV25

TB26

SHUT27

DOTCLK28

VSYNC29

HSYNC30

DEN31

RR732

RR633

RR534

RR435

RR336

RR237

RR138

RR039

GG740

GG641

GG542

GG443

GG344

GG245

GG146

GG047

BB748

BB649

BB550

BB451

BB352

BB253

BB154

BB055

SDI56

SCK57

CSB58

RESB59

POL60

VSS61

EXVR62

AVSS63

VCHS1

VSSRC2

VCOM3

VGH4

VGL5

VDD6

VCI7

VCIP8

VDDIO9

VCIX210

VCIX2J11

VLCD6312

PINV13

CPE14

SWD215

SWD116

SWD017

SEL218

SEL119

SEL020

BGR21

CM22

RL23

REGVDD24

REV25

TB26

SHUT27

DOTCLK28

VSYNC29

HSYNC30

DEN31

RR732

RR633

RR534

RR435

RR336

RR237

RR138

RR039

GG740

GG641

GG542

GG443

GG344

GG245

GG146

GG047

BB748

BB649

BB550

BB451

BB352

BB253

BB154

BB055

SDI56

SCK57

CSB58

RESB59

POL60

VSS61

EXVR62

AVSS63

Gla

ss9

60

*24

0

G00

G02

G03

G01

G236

G237

G238

G239

S0

S1

S2

S958

S959

G00

G01

G02

G03

G236

G237

G238

G239

S479

S480

S481

S957U

6

CO

N85

VSS1

VCOM2

VGH3

VGL4

VDD5

VDDIO6

VLCD637

PINV8

SEL29

SEL110

SEL011

RL12

REGVDD13

TB14

DOTCLK15

VSYNC16

HSYNC17

DEN18

RR719

RR620

RR521

RR422

RR323

RR224

RR125

RR026

GG727

GG628

GG529

GG430

GG331

GG232

GG133

GG034

BB735

BB636

BB537

BB438

BB339

BB240

BB141

BB042

SDI43

SCK44

CSB45

RESB46

POL47

EXVR48

VLED+49

VLED-50

SEL2

SEL0

VCHS

VSSRC

VGH

TB

VCI

PANEL

HX8238A

FPC

VCIP

VSSRC

VCI

VCHS

VDDIO

SEL2

VCIX2

VDD

VGL

VGH

VCOM

CPE

VLCD63

PINV

SWD2

VCIX2J

SWD1

CM

BGR

REGVDD

SEL1

SWD0

VSS

EXVR

REV

RL

SHUT

VSYNC

DOTCLK

POL

AVSS

VDDIO

VGL

RR4

RR7

DEN

RR5

RR6

HSYNC

VDDIO

VCIP

VCI

VDD

RR2

RR3

RR0

RR1

GG7

VLCD63

VCIX2J

VCIX2

GG4

GG2

GG6

GG3

GG1

CPE

PINV

BB4

BB5

BB6

BB7

GG0

GG5

SEL0

SEL1

SEL2

SWD0

SWD1

SWD2

SDI

BB0

BB1

BB2

BB3

REGVDD

RL

CM

BGR

RESB

CSB

SCK

HSYNC

VSYNC

DOTCLK

SHUT

TB

REV

RR4

RR5

RR6

RR7

DEN

GG7

RR0

RR1

RR2

RR3

GG1

GG2

GG3

GG4

GG5

GG6

BB4

BB5

BB6

BB7

GG0

SDI

BB0

BB1

BB2

BB3

POL

RESB

CSB

SCK

VCOM

VSSRC

VCHS

VGH

VGL

VDD

AVSS

EXVR

VSS

VLCD63

VCIX2J

VCIX2

PINV

CPE

SWD2

SEL1

SWD0

SWD1

RL

CM

BGR

REGVDD

REV

SEL0

VSS

EXVR

AVSS

POL

VSS

VGH

VDD

VLCD63

VDDIO

VLED+

PINV

EXVR

VGL

VCOM

POL

SEL1

SEL0

SEL2

VLED-

BB4

SDI

CSB

RESB

SCK

BB0

GG4

BB2

BB3

BB5

BB1

RR0

BB6

BB7

GG0

GG3

RR6

GG7

GG6

GG5

GG2

GG1

RR2

RR1

RR3

RR4

RR5

RL

DOTCLK

RR7

VSYNC

DEN

HSYNC

REGVDD

TB

SHUT

DOTCLK

DEN

RR5

RR6

HSYNC

VSYNC

RR3

RR0

RR1

GG7

RR4

RR7

GG2

GG6

GG3

GG1

RR2

BB6

BB7

GG0

GG5

GG4

BB0

BB1

BB2

BB3

BB4

BB5

RESB

CSB

SCK

SDI

F

igu

re 3

.9 F

PC

an

d G

lass la

yo

ut w

itho

ut in

tern

al c

ha

rge

pum

b

Page 25: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.24-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

3.9 FPC, Power connection without internal charge pumb

C1

10uF

R120

T15JP

1

U1

CON85

VSS1

VCOM2

VGH3

VGL4

VDD5

VDDIO6

VLCD637

PINV8

SEL29

SEL110

SEL011

RL12

REGVDD13

TB14

DOTCLK15

VSYNC16

HSYNC17

DEN18

RR719

RR620

RR521

RR422

RR323

RR224

RR125

RR026

GG727

GG628

GG529

GG430

GG331

GG232

GG133

GG034

BB735

BB636

BB537

BB438

BB339

BB240

BB141

BB042

SDI43

SCK44

CSB45

RESB46

POL47

EXVR48

VLED+49

VLED-50

R810k

R10 22k

T10JP

1

C20

1uF

L2

BEAD

R10

R90

T3JP

1

R210k

L1

BEAD

R18NC

VCDC1 50kC12

10uF

D1

RB520-30

C6

3.3uF/6.3VR3

OPEN

T4JP

1

C19

2.2uF/6.3V

R410k(1%)

T2JP

1

R16NC

R22NC

C2

10uF

C847uF/10V

R230

C1710uF/10V

C10

2.2uF/16V

T11JP

1

T5JP

1

R250

C9 10uF/10VR6 0

R27NC

T7JP

1

C510uF

R200

R240

R190

C1510uF

R28NC

T1JP

1

C18

0.1uF

T6JP

1

VCAC150k

R141K

T12JP

1

R5 0

R150

R210

R17NC

C141uF

VG

L

R11 1k

T8JP

1

T13JP

1

R13 0

C7

2.2uF/16V

C30.1u

C16

4.7uF/6.3VC130.1u

R720k

C11

10uF

U2

LM8272

1OUT1

1IN-2

1IN+3

V-4

2IN+52IN-62OUT7V+8

R26NC

C41uF

RET1

T9JP

1

T14JP

1

SYETEMVDD 3.3V

5.0V

VLCD63

VCOM_5V

VDD

VDDIO

VCOM

VGH

VGL

DOTCLK

VLCD63

SDI

VSYNC

HSYNC

DEN

SCK

CSB

EXVR

VLED+

VLED-

VD

DIO

SEL0

SEL1

SEL2

PINV

RL

REGVDD

TB

near connector

near connector

VDDVGLVGH

VLCD63

VDDIO

RESB

VD

DIO

VSSVCOM

VDDIO

EXVR

VL

CD

63

VL

CD

63

VEE10

POL

VCOM

PINV

SEL0SEL1SEL2

POL

VLED-VLED+

BB0SDISCK

RESB

BB5BB4BB3BB2BB1

CSB

GG3GG4

GG0BB7BB6

RR0

GG5GG6GG7

GG1GG2

RR3RR4RR5RR6

RR1

DENRR7

RR2

HSYNCVSYNCDOTCLKTBREGVDDRL

Note: The cIrcuit is on the condition what follows

1.SYSTEM VDD=3.3V,REGVDD="H"

2.Parallel RGB input mode,SEL[2:0]=000

3.from left to right,RL="H"

4.from up to down,TB="H"

5.Use external voltage

3.10 FPC, Power connection without internal charge pumb

Page 26: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.25- Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

4. OLB resistance value

PAD NO. PAD NAME

max. wiring

resistance(Ohm) PAD NO. PAD NAME

max. wiring

resistance(Ohm) 1 THROUGH4 47 SDO 100 2 THROUGH3 48 SDO 100 3 DUMMY 49 RESB 4 VCOM 50 RESB 100 5 VCOM 51 CSB 6 VCOM 52 CSB 100 7 VCOM 7.5 53 SCK 8 DUMMY 54 SCK 100 9 AVSS 55 SDI 10 AVSS 56 SDI 100 11 AVSS 57 BB0 12 AVSS 58 BB0 100 13 AVSS 59 BB1 14 AVSS 60 BB1 100 15 AVSS 61 BB2 16 AVSS 62 BB2 100 17 AVSS 63 BB3 18 AVSS 5

64 BB3 100 19 EXVR 65 BB4 20 EXVR 66 BB4 100 21 EXVR 67 BB5 22 EXVR 7.5 68 BB5 100 23 VSS 69 BB6 24 VSS 70 BB6 100 25 VSS 71 BB7 26 VSS 72 BB7 100 27 VSS 73 GG0 28 VSS 74 GG0 100 29 VSS 75 GG1 30 VSS 5 76 GG1 100 31 DUMMY 77 GG2 32 TEST15 78 GG2 100 33 TEST14 79 GG3 34 TEST13 80 GG3 100 35 TEST12 81 GG4 36 TEST11 82 GG4 100 37 TEST10 83 GG5 38 TEST9 84 GG5 100 39 TEST8 85 GG6 40 TEST7 86 GG6 100 41 TEST6 87 GG7 42 TEST5 88 GG7 100 43 TEST4 89 RR0 44 DUMMY 90 RR0 100 45 QXH 100 91 RR1 46 POL 100 92 RR1 100

Page 27: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.26-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

PAD NO. PAD NAME

max. wiring

resistance(Ohm) PAD NO. PAD NAME

max. wiring

resistance(Ohm) 93 RR2 140 DUMMY 94 RR2 100 141 VCIM 95 RR3 142 VCIM 96 RR3 100 143 VCIM 97 RR4 144 VCIM 98 RR4 100 145 VCIM 10 99 RR5 146 C1P 100 RR5 100 147 C1P 101 RR6 148 C1P 102 RR6 100 149 C1P 103 RR7 150 C1P 10 104 RR7 100 151 C1N 105 DEN 152 C1N 106 DEN 100 153 C1N 107 HSYNC 154 C1N 108 HSYNC 100 155 C1N 10 109 VSYNC 156 VLCD63 110 VSYNC 100 157 VLCD63 111 DOTCLK 158 VLCD63 112 DOTCLK 100 159 VLCD63 113 SHUT 160 VLCD63 114 SHUT 100 161 VLCD63 10 115 VSS 162 VCIX2J 116 TB 100 163 VCIX2J 117 VDDIO 164 VCIX2J 118 REV 100 165 VCIX2J 119 VSS 166 VCIX2J 120 REGVDD 100 167 VCIX2J 5 121 VDDIO 168 VCIX2 122 RL 100 169 VCIX2 123 VSS 170 VCIX2 124 CM 100 171 VCIX2 125 VDDIO 172 VCIX2 126 BGR 100 173 VCIX2 5 127 VSS 174 CYN 128 SEL0 100 175 CYN 129 SEL1 100 176 CYN 130 SEL2 100 177 CYN 131 VDDIO 178 CYN 132 SWD0 100 179 CYN

5 133 VSS 180 CYP 134 SWD1 100 181 CYP 135 VDDIO 182 CYP 136 SWD2 100 183 CYP 137 VSS 184 CYP 138 CPE 100 185 CYP

5 139 PINV 100

Page 28: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.27-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

PAD NO. PAD NAME

max. wiring

resistance(Ohm) PAD NO. PAD NAME

max. wiring

resistance(Ohm) 186 CXN 231 VGL 187 CXN 232 VGL 188 CXN 233 VGL 189 CXN 234 VGL 190 CXN 235 VGL 10 191 CXN

5 236 C2N 192 CXP 237 C2N 193 CXP 238 C2N

10 194 CXP 239 C2P 195 CXP 240 C2P 196 CXP 241 C2P 10 197 CXP

5 242 C3N 198 VDDIO 243 C3N 199 VDDIO 244 C3N 10 200 VDDIO 245 C3P 201 VDDIO 246 C3P 202 VDDIO 247 C3P 10 203 VDDIO 10 248 VGH 204 VCIP 249 VGH 205 VCIP 250 VGH 206 VCIP 251 VGH 207 VCIP 10 252 VGH 10 208 VCI 253 TEST17 209 VCI 254 TEST16 210 VCI 255 VCOMR 211 VCI 256 VCOMR 100 212 VCI 257 VCOML 213 VCI 258 VCOML 214 VCI 259 VCOML 215 VCI 260 VCOML 7.5 216 VCI 261 VCOMH 217 VCI 5

262 VCOMH 218 VDD 263 VCOMH 219 VDD 264 VCOMH 7.5 220 VDD 265 VCOM 221 VDD 266 VCOM 222 VDD 267 VCOM 223 VDD 7.5 268 VCOM 7.5 224 DUMMY 269 VSSRC 225 CN 270 VSSRC 226 CN 271 VSSRC 227 CN

10 272 VSSRC 228 CP 273 VSSRC 229 CP 274 VSSRC 230 CP 10 275 VSSRC 276 VSSRC 7.5

Page 29: HX8238-A€¦ · select bit (RS). When RS = 0, index register write or status read is executed. When the RS = 1, instruction write. ... PKN 12 PKN 11 PKN 10 0 0 0 0 0 PKN 02 PKN 01

-P.28-

HX8238-A 960x 240 TFT LCD Single Chip Digital Driver

AN Preliminary V01

Himax Confidential

Dec, 2006 This information contained herein is the exclusive property of Himax and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission of Himax. Subject to change without notice.

PAD NO. PAD NAME

max. wiring

resistance(Ohm) 277 VCHS 278 VCHS 279 VCHS 280 VCHS 281 VCHS 282 VCHS 283 VCHS 284 VCHS 285 VCHS 286 VCHS 5

287 DUMMY 288 VFB 289 VFB 100 290 DRV 291 DRV 100 292 DUMMY 293 THROUGH2 294 THROUGH1

5.Revision History

Version EFF.DATE DESCRIPTION OF CHANGES

01 2006/12/08 New setup

2006/12/15

1.Add FPC and Glass layout with internal charge pumb

2. Add FPC, Power connection and LED Backlight Driving Circuit with internal charge pumb

3.Add FPC and Glass layout without internal charge pumb

4.Add FPC, Power connection without internal charge pumb

5. Modify Figure 3.4、3.6

2007/01/03 1. Modify Figure 3.4

2. Modify Figure 3.8

With collaboration of https://www.displayfuture.com