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4-1
4. R.G.B. DRIVE CIRCUIT
4-1. Outline
The outline of RGB drive circuit is described below
using the G process of the RGB drive circuit as an
example.
Fig. 4-1-1
In the panel, 1024 pixels are arranged in a horizontal
direction and 768 lines of the pixels are in a vertical as
shown in Fig. 4-1-2.
As an H inverted drive system is employed, the panel
input signal waveform is as shown in Fig. 4-1-3.
Fig. 4-1-2
Fig. 4-1-3
Odd number
pixel memory
Even number
pixel memory
DAC1 Amp.
DAC2
SW1
SW2
1
1
2
2
Amp.
Q502
Q504
Q505,Q506,Q507
Q508,Q509,Q510
Q523,Q524,Q510
Normal
amp.1
Inverted
amp.1
Q511,Q512,Q513
Normal
amp.2
Inverted
amp.2
SW3
Q514
SW5
Q515
Q516
Panel
Q517
Q514
1
2
1
2
Q515
SW6
1
2
SW4
1
2
Exclusive for
even number pixel
12-phase decomposite
12-phase composite
(12-phase collectively input)
Sample hold
&
6-Phase decomposite
Sample hold
&
6-Phase decomposite
1
2
3
4
5
6
7
8
9
10
11
12
Line inverted
Frame inverted
Digital PC board Drive PC board
Exclusive for odd number pixel
VIDEO
input
1
2
1
1022 1023 1024
23
1st line
768 lines
768th line
1024 pixels
2nd line
2nd line
White level
White level
Black level
Black level
1st line
1st line
1st frame 2nd frame
Center voltage