IP Library Granted Patent US 7,710,524
Granted Patent B2
US 7,710,524 · App. 11/644,353 · Granted May 4, 2010

Liquid crystal display with compensated pixel arrays

Assignee: Quanta Display, Inc.
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Quick Facts
Patent No.
US 7,710,524
App. No.
11/644,353
Granted
May 4, 2010
Kind
B2
Abstract

A liquid crystal display having one or more pixels, each of which includes a first sub-pixel operating at a first threshold voltage, and a second sub-pixel neighboring the first sub-pixel, and operating at a second threshold voltage. The first sub-pixel is divided into two separate portions by the second sub-pixel to form at least four domains of liquid crystal molecules illuminating at various gray levels for improving viewing angle characteristics of the liquid crystal display.

Claims (24)

1. A liquid crystal display having a plurality of pixels comprising:

a first pixel including a first and a second sub-pixel, the first sub-pixel having a first threshold voltage, the second sub-pixel having a second threshold voltage, the second threshold voltage being different from the first threshold voltage, the second sub-pixel dividing the first sub-pixel into a first and a second portion; and

a second pixel juxtaposing the first pixel, the second pixel including a third and a fourth sub-pixel, the third sub-pixel having the first threshold voltage, a fourth sub-pixel having the second threshold voltage, the fourth sub-pixel dividing the third sub-pixel into a third and a fourth portion, the second sub-pixel juxtaposing the third sub-pixel.

2. The liquid crystal display of claim 1 , wherein the first and the second portion of the first sub-pixel are physically separated but electrically connected.

3. The liquid crystal display of claim 1 wherein both the first and the second pixels have an identical rectangular shape.

4. The liquid crystal display of claim 3 , wherein the first pixel comprises a first and a second slit, the first slit extending from a mid-point of one side of the first pixel to a corner of an opposite side of the first pixel and separating the first sub-pixel from the second sub-pixel, and the second slit extending from the mid-point to another corner of the opposite side of the first pixel and separating the first sub-pixel from the second sub-pixel.

5. The liquid crystal display of claim 4 , wherein the first and the second slits are straight lines.

6. The liquid crystal display of claim 4 , wherein the first and second slits are curved lines.

7. A liquid crystal display having a plurality of pixels comprising:

a first pixel including a first and a second sub-pixel, the first sub-pixel having a first threshold voltage, the second sub-pixel having a second threshold voltage, the second threshold voltage being different from the first threshold voltage, the second sub-pixel dividing the first sub-pixel into a first and a second portion; and

a second pixel juxtaposing the first pixel, the second pixel including a third and a fourth sub-pixel, the third sub-pixel having the first threshold voltage, a fourth sub-pixel having the second threshold voltage, the third sub-pixel dividing the fourth sub-pixel into a third and a fourth portion, the second sub-pixel juxtaposing the third sub-pixel.

8. The liquid crystal display of claim 7 , wherein the first and the second portion of the first sub-pixel are physically separated but electrically connected.

9. The liquid crystal display of claim 7 wherein both the first and the second pixels have an identical rectangular shape.

10. The liquid crystal display of claim 9 , wherein the first pixel comprises a first and a second slit, the first slit extending from a mid-point of one side of the first pixel to a corner of an opposite side of the first pixel and separating the first sub-pixel from the second sub-pixel, and the second slit extending from the mid-point to another corner of the opposite side of the first pixel and separating the first sub-pixel from the second sub-pixel.

11. The liquid crystal display of claim 10 , wherein the first and the second slits are straight lines.

12. The liquid crystal display of claim 10 , wherein the first and the second slits are curved lines.

13. A liquid crystal display having a plurality of pixels comprising:

a first pixel including a first and a second slit, the first slit extending from a first mid-point of one side of the first pixel to a corner of an opposite side of the first pixel and dividing the first pixel into a first sub-pixel and a second sub-pixel, the second slit extending from the first mid-point to another corner of the opposite side of the first pixel dividing a portion of the first pixel between the first and the second slit into the second sub-pixel, and the rest area of the first pixel being the first sub-pixel, the first sub-pixel having a first threshold voltage, the second sub-pixel having a second threshold voltage, the second threshold voltage being different from the first threshold voltage; and

a second pixel juxtaposing the first pixel, the second pixel including a third and a fourth slit, the third slit extending from a second mid-point of one side of the second pixel to a corner of an opposite side of the second pixel and dividing the second pixel into a third sub-pixel and a fourth sub-pixel, the fourth slit extending from the second mid-point to another corner of the opposite side of the second pixel dividing a portion of the second pixel between the third and the fourth slit into the third sub-pixel, and the rest area of the second pixel being the fourth sub-pixel, the third sub-pixel having the first threshold voltage, the fourth sub-pixel having the second threshold voltage, the second mid-point of the second pixel juxtaposing the first mid-point of the first pixel.

14. The liquid crystal display of claim 13 , wherein the first sub-pixel includes a first and a second area separated by the first and the second slit, the first and the second area are electrically connected.

15. The liquid crystal display of claim 13 , wherein the fourth sub-pixel includes a third and a fourth area separated by the third and the fourth slit, the third and the fourth area are electrically connected.

16. The liquid crystal display of claim 13 , wherein both the first and the second pixels have an identical rectangular shape.

17. The liquid crystal display of claim 13 , wherein the first and the second slits are straight lines.

18. The liquid crystal display of claim 13 , wherein the first and the second slits are curved lines.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2023
From: AUO CORPORATION
To: OPTRONIC SCIENCES LLC
Reel/Frame 064658/0572 →
MERGER Recorded May 25, 2023
From: QUANTA DISPLAY, INC.
To: AU OPTRONICS CORPORATION
Reel/Frame 063766/0947 →
CHANGE OF NAME Recorded May 25, 2023
From: AU OPTRONICS CORPORATION
To: AUO CORPORATION
Reel/Frame 063785/0830 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 6, 2007
From: CHIN, CHUN-CHANG; YEH, HSU-CHENG
To: QUANTA DISPLAY, INC.
Reel/Frame 018862/0404 →
Continuity (2)
Provisional Application 6078288500 · Mar 15, 2006
Related Publication 20070216844A1 · Sep 20, 2007