OTM8009A CPT Application Note V0.0

时间：2025-04-11

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OTM8009A

CPT NW Panel Application note

1440x800 System-on-chip Driver for 480xRGBx800 Stripe TFT LCD

Dec. 13, 2011 Version 0.1

Table of Contents

1. CPT 3.97〞APPLICATION NOTE FOR NORMALLY WHITE CELL...................................................................................3

1.1. APPLICATION CIRCUIT........................................................................................................................................................................4 1.2. INITIAL CODE.....................................................................................................................................................................................6

2. DISCLAIMER...................................................................................................................................................................13 3. REVISION HISTORY........................................................................................................................................................14

1. CPT 3.97〞APPLICATION NOTE FOR NORMALLY WHITE CELL

CPT Cell Model Name : CLAF040LE21

Product Description :3.97 inch 480xRGBx800 Stripe TFT-LCD

1.1. Application Circuit

VDDIO

1.0uF/4V

VDD

2.2uF/6.3VC11N

2.2uF/6.3VC12N

2.2uF/6.3VC13N

2.2uF/6.3VC14N

2.2uF/6.3V

C11P

C12P

C13P

C14P

VDDA

V2.2uF/10VC21N

2.2uF/6.3VC22N

2.2uF/6.3VC23N

2.2uF/6.3VC24N

2.2uF/6.3V

C21P

C22P

C23P

C10

C24P

C11

NVDDA

2.2uF/10VC31N

2.2uF/6.3VC32N

2.2uF/6.3V

C12

C31P

C13

C32P

C14

VCL

2.2uF/6.3VC41N

1.0uF/16V

C15

C41P

C16

VGH

1.0uF/25VC51N

1.0uF/16V

C17

C51P

C18

VREF

1.0uF/4V

C20

VCOM

2.2uF/4V

C21

VDD_18V

2.2uF/4V

C22

DIOPWR

1.0uF/4V

C23

LVDSVDD

1.0uF/4V

C24

VDDP

1.0uF/4V

C25

VGL_REGC26(OPTIONAL)

1.0uF/20V

Interface application note:

External Pad Set

IM2 0 0 0 0 1 1 1 1

IM1 0 0 1 1 0 0 1 1

IM0 0 1 0 1 0 1 0 1

Interface format 80-series 8-bit MPU interface 80-series 16-bit MPU interface 80-series 24-bit MPU interface

RGB[8:8:8] + SPI RGB[8:8:8] + I2C

MIPI-DSI MDDI + SPI MDDI + I2C

Hardware control pin note:

SYMBOL LANSEL NBWSEL

VSEL

(DIOPWR voltage select) PSWAP

(Lanes Polarity swapping)

Pull Low"0" 1 Lane NW 1.2V Positive->Positive

CH0->D0 CH1->D1 CH0->D0 CH1-> X

Pull High"1" 2 Lane NB 1.8V

Positive->Negative

CH0->D1 CH1->D0 CH0-> X CH1->D0

Note

SW priority first.

For 2 Lanes use For 1 Lanes use

DSWAP

(Data Lanes swapping)

Note:

The cell mode(CLAF040LE21) connect NBWSEL pin to “1”(NB),now. It must be write command 21H to change Display inversion for NW.

VDD = 2.8V ; VDDIO = 1.8V

(VDD and VDDIO supply at the same time will be better)

for MIPI

for RGB

ADDRESS PARAMETER

FF00h FF01h FF02h FF80h FF81h FF03h 2100h B3A1h

B3A6h B3A7h

CE80h CE81h CE82h CE83h CE84h CE85h

CEA0h

1.2. Initial Code

ITEM

Command 2 Enable

Address Shift

ORISE

Command Enable

Address Shift

Address Shift CE8x

Address Shift CEAx

ADDRESS PARAMETER

FFh 80h 09h 01h 00h 80h FFh 80h 09h 00h 03h FFh 01h 21h 00h A1h B3h 10h 00h A6h B3h 2Bh 11h 00h 80h CEh 82h 01h 00h 81h 01h 00h 00h A0h CEh 18h

Note

For normally white

Panel timing setting start

80h 09h 01h 80h 09h 01h 10h 2Bh 11h 82h 01h 00h 81h 01h 00h 18h

OTM8009A

00h 03h 23h 00h 00h 00h 10h 00h 03h 24h 00h 00h 00h 00h B0h CEh 10h 01h 03h 23h 00h 00h 00h 10h 02h 03h 24h 00h 00h 00h 00h C7h CFh 00h 00h C6h CBh 04h 04h 00h C9h CBh 04h 00h

CEA1h CEA2h CEA3h CEA4h CEA5h CEA6h CEA7h CEA8h CEA9h CEA0Ah CEA0Bh CEA0Ch CEA0Dh

CEB0h CEB1h CEB2h CEB3h CEB4h CEB5h CEB6h CEB7h CEB8h CEB9h CEBAh CEBBh CEBCh CEBDh

CFC7h

CBC6h CBC7h

CBC9h

Address Shift CEBx

Address Shift CFCx

Address Shift CBCx

Address Shift

00h 03h 23h 00h 00h 00h 10h 00h 03h 24h 00h 00h 00h 10h 01h 03h 23h 00h 00h 00h 10h 02h 03h 24h 00h 00h 00h 00h 04h 04h 04h

OTM8009A

DBh CBh 04h 04h 00h DEh CBh 04h 00h 86h CCh 0Ch 0Ah 00h 89h CCh 02h 00h A1h CCh 0Bh 09h 00h A4h CCh 01h 00h B6h CCh 09h 0Bh 00h B9h CCh 01h 00h D1h CCh 0Ah 0Ch 00h D4h CCh 02h

CBDBh CBDCh

CBDEh

CC86h CC87h

CC89h

CCA1h CCA2h

CCA4h

CCB6h CCB7h

CCB9h

CCD1h CCD2h

CCD4h

CBDx

Address Shift CBDx