IP Library Granted Patent US 8,199,097
Granted Patent B2
US 8,199,097 · App. 12/385,652 · Granted Jun 12, 2012

Liquid crystal display, driver chip and driving method thereof

Assignee: AU Optronics Corp.
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Quick Facts
Patent No.
US 8,199,097
App. No.
12/385,652
Granted
Jun 12, 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 (48)

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

providing a first signal, wherein the first 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 signal either in the first signal-type or in the second signal-type;

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

outputting the second 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 signal into the second signal.

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

4. The method according to claim 3 , wherein the first signal is a control signal.

5. The method according to claim 4 , wherein the control signal is a pixel signal.

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

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

8. The method according to claim 7 , wherein the first signal-type is a differential type and the second signal-type is a single-ended type.

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

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

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

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

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

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

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

providing a first signal, wherein the first 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 signal either in the first signal-type or in the second signal-type; and

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

13. The method according to claim 12 , further comprising:

converting the first signal into the second signal.

14. The method according to claim 13 , wherein the LCD has a timing controller for providing the first signal.

15. The method according to claim 14 , wherein the first signal is a control signal.

16. The method according to claim 15 , wherein the control signal is a pixel signal.

17. The method according to claim 14 , wherein the second signal outputs to a display panel of the LCD.

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

19. The method according to claim 18 , wherein the first signal-type is a differential type and the second signal-type is a single-ended type.

20. The method according to claim 19 , further comprising:

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

21. The method according to claim 18 , wherein the first signal-type is a single-ended type and the second signal-type is a differential type.

22. The method according to claim 21 , further comprising:

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

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

providing a first signal, wherein the first 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 signal;

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

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

24. The method according to claim 23 , wherein when the receiving mode of the first signal has the first signal-type, the second signal has the second signal-type.

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

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

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

28. The method according to claim 23 , wherein when the receiving mode of the first signal has the first signal-type, the second signal has the first signal-type.

29. The method according to claim 28 , wherein the first signal-type is a differential type and the second signal-type is a single-ended type.

30. The method according to claim 28 , 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 15, 2009
From: WANG, CHIH-SUNG; YANG, CHIH-HSIANG; LU, CHAO-LIANG
To: AU OPTRONICS CORP.
Reel/Frame 022591/0062 →
Priority Claims (1)
TW 93121223 A · Jul 15, 2004 · national
Continuity (3)
Continuation 12232438 · Sep 17, 2008
Continuation 11034858 · Jan 14, 2005
Related Publication 20090201240A1 · Aug 13, 2009