Toshiba TLP511E, TLP510E, TLP510U, TLP511U manual G.B. Drive Circuit, Outline

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.

Odd number pixel memory

Even number pixel memory

SW1

1

DAC1

2

1

DAC2

2

SW2

	Q505,Q506,Q507
Q502	Normal		Q514
	amp.1	1
Amp.			SW3
	Q508,Q509,Q510	2
	Inverted
	amp.1
	Q511,Q512,Q513
Q504	Normal
	amp.2	1	Q514
Amp.
	Q523,Q524,Q510
		2	SW4
	Inverted
	amp.2

Exclusive for odd number pixel
	Q516			Panel
Q515			-Phase decomposite	VIDEO 1
	Sample hold			input
1SW5				2
		&
				3
2				4
				5
		1	6	6
			Phase decomposite	7
1 Q515	Sample hold			8
				9
2 SW6		&
				10
				11
				12
			-
			6
		2

Line inverted

Frame inverted

Digital PC board Drive PC board

Q517

Exclusive for

even number pixel

12-phase composite

(12-phase collectively input)

12-phase decomposite

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.

Black level
White level		2nd line	1st line
Center voltage
			2nd line
1st line		White level
		Black level
	1st frame		2nd frame

1024 pixels

1 2 3 1022 1023 1024

1st line

768 lines

768th line

Fig. 4-1-2

Fig. 4-1-3

4-1