HD66781 Datasheet, PDF (78/196 Pages) Renesas Technology Corp – 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM

HD66781
Table 48 α channel
α2 α1 α0 transmission rate displayed picture
00
0
0%
Base image display
00
1
Setting disabled
01
0
25%
Base image 75%+OSD 25%
01
1
75%
Base image 25%+OSD 75%
10
0
50%
Base image 50%+OSD 50%
10
1
Setting disabled
11
0
100%
OSD image display
11
1
Setting disabled
Preliminary
input pins
18-bit interface (Base image:262,144 colors, OSD image: 32,768 colors)
DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB DB
17 16 15 14 13 12 11 10 ⁹
8
7
65
4
3
2
1
0
GRAM
write data
WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD
[17 ] [16 ] [15 ] [14 ] [13 ] [12 ] [11 ] [10 ] [9 ] [8 ] [7 ] [6 ] [5 ] [4 ] [3 ] [2 ] [1 ] [0 ]
RGB pixel
assignment
OSD data
ODF = 0
OSD data
ODF = 1
R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0
R 5 R 4 R 3 R 2 R 1 α2 G5 G4 G3 G2 G1 α1 B5 B4 B3 B2 B1 α0
α2 α1 α0 R5 R4 R3 R2 R1 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1
RAM data write in 18-bit interface (Base image 262,144 colors/OSD image 8,192 colors)
Rev.0.5, July.31.2003, page 78 of 196