IP Library Granted Patent US 8,203,517
Granted Patent B2
US 8,203,517 · App. 12/385,442 · Granted Jun 19, 2012

Liquid crystal display, driver chip and driving method thereof

Assignee: Au Optronics Corp.
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Quick Facts
Patent No.
US 8,203,517
App. No.
12/385,442
Granted
Jun 19, 2012
Kind
B2
Abstract

A liquid crystal display and the driving method thereof. The LCD includes a timing controller, a plurality of driver chips and a display panel. The driver chips are cascaded together for driving the display panel to display frames. A driver chip includes a differential receiver, a single-ended receiver, a shift register, a differential transmitter, a single-ended transmitter and a pixel driver. The driver chip receives a pixel signal and drives the display panel according to the pixel signal, and outputs the pixel signal to the next driver chip.

Claims (44)

1. A method for transmitting data in a first driver chip on a liquid crystal display (LCD), comprising:

providing a first pixel signal, wherein the first pixel signal has a first signal-type and a second signal-type, and the second signal-type is different from the first signal-type;

receiving the first pixel signal either in the first signal-type or in the second signal-type;

transmitting a second pixel signal according to the first pixel signal, wherein the second pixel signal has a first signal-type and a second signal-type; and

outputting the second pixel signal either in the first signal-type or in the second signal-type.

2. The method according to claim 1 , further comprising:

converting the first pixel signal into the second pixel signal.

3. The method according to claim 2 , wherein the LCD has a timing controller for providing the first pixel signal.

4. The method according to claim 3 , wherein the second pixel signal outputs to a display panel of the LCD.

5. The method according to claim 3 , wherein the second pixel signal outputs to a second driver chip of the LCD.

6. The method according to claim 5 , wherein the first signal-type is a differential type and the second signal-type is a single-ended type.

7. The method according to claim 6 , further comprising:

the second driver chip outputting a third pixel signal, wherein the third pixel signal has a first signal-type and a second signal-type.

8. The method according to claim 6 , further comprising:

the second driver chip outputting a third pixel signal in a first signal-type.

9. The method according to claim 6 , further comprising:

the second driver chip outputting a third pixel signal in a second signal-type.

10. A method for transmitting data in a first driver chip on a liquid crystal display (LCD), comprising:

providing a first pixel signal, wherein the first pixel signal has a first signal-type and a second signal-type, and the second signal-type is different from the first signal-type;

receiving the first pixel signal either in the first signal-type or in the second signal-type; and

transmitting a second pixel signal according to the first pixel signal, wherein the second pixel signal has a first signal-type.

11. The method according to claim 10 , further comprising:

converting the first pixel signal into the second pixel signal.

12. The method according to claim 11 , wherein the LCD has a timing controller for providing the first pixel signal.

13. The method according to claim 12 , wherein the second pixel signal outputs to a display panel of the LCD.

14. The method according to claim 12 , wherein the second pixel signal outputs to a second driver chip of the LCD.

15. The method according to claim 14 , wherein the first signal-type is a differential type and the second signal-type is a single-ended type.

16. The method according to claim 15 , further comprising:

the second driver chip outputting a third pixel signal, wherein the third pixel signal has a first signal-type.

17. The method according to claim 14 , wherein the first signal-type is a single-ended type and the second signal-type is a differential type.

18. The method according to claim 17 , further comprising:

the second driver chip outputting a third pixel signal, wherein the third pixel signal has a first signal-type.

19. A method for transmitting data in a first driver chip on a liquid crystal display (LCD), comprising:

providing a first pixel signal, wherein the first pixel signal has a first signal-type and a second signal-type, and the second signal-type is different from the first signal-type;

determining a receiving mode of the first pixel signal;

receiving and converting the first pixel signal according to the receiving mode of the first pixel signal into a first internal signal and temporarily storing the first internal signal in the first driver chip, wherein when the first pixel signal has the first signal-type, the first internal signal converted from the first pixel signal has the first signal-type and the second signal-type; and

converting the first internal signal into a second pixel signal and outputting the second pixel signal according to an output mode of the second pixel signal.

20. The method according to claim 19 , wherein when the receiving mode of the first pixel signal has the first signal-type, the second pixel signal has the second signal-type.

21. The method according to claim 20 , wherein when the receiving mode of the first pixel signal has the second signal-type, the second pixel signal has the second signal-type.

22. The method according to claim 21 , wherein the first signal-type is a differential type and the second signal-type is a single-ended type.

23. The method according to claim 21 , wherein the first signal-type is a single-ended type and the second signal-type is a differential type.

24. The method according to claim 19 , wherein when the receiving mode of the first pixel signal has the first signal-type, the second pixel signal has the first signal-type.

25. The method according to claim 24 , wherein the first signal-type is a differential type and the second signal-type is a single-ended type.

26. The method according to claim 24 , wherein the first signal-type is a single-ended type and the second signal-type is a differential type.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2023
From: AUO CORPORATION
To: OPTRONIC SCIENCES LLC
Reel/Frame 064658/0572 →
CHANGE OF NAME Recorded May 25, 2023
From: AU OPTRONICS CORPORATION
To: AUO CORPORATION
Reel/Frame 063785/0830 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2009
From: WANG, CHIH-SUNG; YANG, CHIH-HSIANG; LU, CHAO-LIANG
To: AU OPTRONICS CORP.
Reel/Frame 022666/0255 →
Priority Claims (1)
TW 93121223 A · Jul 15, 2004 · national
Continuity (3)
Continuation 12232438 · Sep 17, 2008
Continuation 11034858 · Jan 14, 2005
Related Publication 20090195531A1 · Aug 6, 2009