HD66781 Datasheet, PDF (84/196 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
Preliminary
RGB 18-bit interface (Base image 262,144 colors, OSD image 32,768 colors)
Input pin
PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD PD
17 16 15 14 13 12 11 10 9
8
7
6
5
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 ^{R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0}
OSD data
ODF = 0
OSD data
ODF = 1
R5 R4 R3 R2 R1 α2 G5 G4 G3 G2 G1 α1 B5 B4 B3 B2 B1 α0
α2 α1 α0 R5 R4 R3 R2 R1 G5 G4 G3 G2 G1 B5 B4 B3 B2 B1
Note : RAM write through RGB interface requires index register settings.
RGB 18-bit interface (Base/OSD image display)
RGB 16-bit interface (Base image: 65, 536 colors/OSD image: 8,192 colors)
Base image data format
Input pin
DB DB DB DB DB
17 16 15 14 13
DB DB DB DB DB DB DB DB DB DB DB
11 10 9
8
7
6
5
4
3
2
1
GRAM
Write data
WD WD WD WD WD
[17] [16] [15] [14] [13]
WD WD WD WD WD WD WD WD WD WD WD
[11] [10] [9] [8] [7] [6] [5] [4] [3] [2] [1]
RGB picture
Assignment
R5
R4
R3
R2
R1
R0
G5
G4
G3
G2
G1
G0
B5
B4
B3
B2
B1
B0
OSD image data format 1 (ODF = 0)
Input pin
DB DB DB DB DB
17 16 15 14 13
DB DB DB DB DB DB DB DB DB DB DB
11 10
9
8
7
6
5
4
3
2
1
GRAM
Write data
WD WD WD WD WD
[17] [16] [15] [14] [13]
WD WD WD WD WD WD WD WD WD WD WD
[11] [10] [9] [8] [7] [6] [5] [4] [3] [2] [1]
OSD data _{R5 R4 R3 R2 R1 α2 G5 G4 G3 G2 G1 α1 B5 B4 B3 B2 B1 α0}
ODF = 0
OSD image data format 1 (ODF = 1)
Input pin
DB
17
DB
16
DB
15
DB
14
DB
13
DB DB DB DB DB DB DB DB DB DB DB
11 10 9
8
7
6
5
4
3
2
1
GRAM
WD WD WD WD WD
Write data [17] [16] [15] [14] [13]
WD WD WD WD WD WD WD WD WD WD WD
[11] [10] [9] [8] [7] [6] [5] [4] [3] [2] [1]
OSD data
ODF = 0
α2
α1 α0
R5 R4 R3 R2 R1 G5 G4 G3 G2 G1 B5 B4 B3 B2 B1
RGB 16-bit interface (Base/OSD image display)
Rev.0.5, July.31.2003, page 84 of 196