HD66781 datasheet(1/196 Pages) RENESAS

Part #	HD66781

Description	720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM

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Manufacturer	RENESAS [Renesas Technology Corp]

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Rev. 0.5, July.31.2003, page 1 of 196

Preliminary

HD66781

720-channel Source Driver

for a-Si TFT/Low Temperature Poly-Si TFT Panels

with 262,144-color display RAM

REJxxxxxxx-xxxxZ

Rev.0.5

July.31.2003

• Index

Description ......................................................................................................... 6

Features

......................................................................................................... 7

Block Diagram .................................................................................................... 8

Pin Functions ...................................................................................................... 9

HD66781 power-supply specification.................................................................................... 14

Pad Arrangement................................................................................................. 15

Pad Coordinate.................................................................................................... 16

Bump Arrangement............................................................................................. 18

Example of Connecting HD66781 and HD66783 .............................................. 19

Example of Connecting HD66781 and HD667P21 ............................................ 20

Block Function.................................................................................................... 21

(1)System interface................................................................................................................21

(2)External Display Interface (RGB I/F, VSYNC I/F).......................................................... 22

(3)Address Counter (AC) ...................................................................................................... 22

(4)Graphic RAM (GRAM).................................................................................................... 22

(5)Grayscale Voltage Generation Circuit .............................................................................. 22

(6)Timing generator............................................................................................................... 23

(7)Oscillation Circuit (OSC) ................................................................................................. 23

(8)Liquid Crystal Display Driver Circuit .............................................................................. 23

(9)Gate driver/power supply IC interfacing circuit ............................................................... 23

GRAM Address MAP......................................................................................... 24

Relation between GRAM addresses and Screen positions (SS=0, BGR=0) .......................... 24

Relation between GRAM data and Display data (SS=0, BGR=0)......................................... 25

Relation between GRAM address and Screen position (SS=1, BGR=1)............................... 28

Relation between GRAM data and Display data (SS=1, BGR=1)......................................... 29

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