HD66781 Datasheet, PDF (1/196 Pages) Renesas Technology Corp – 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM

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