IP Library Granted Patent US 8,674,916
Granted Patent B2
US 8,674,916 · App. 13/197,779 · Granted Mar 18, 2014

Driving method for reducing image sticking

Inventors: Pin-Miao Liu (Hsin-Chu, TW); Shui-Chih Lien (Hsin-Chu, TW); Chia-Horng Huang (Hsin-Chu, TW); Chien-Huang Liao (Hsin-Chu, TW); Yu-Hsi Ho (Hsin-Chu, TW); Ting-Jui Chang (Hsin-Chu, TW); Yao-Jen Hsieh (Hsin-Chu, TW); Jenn-Jia Su (Hsin-Chu, TW)
Assignee: AU Optronics Corp.
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Quick Facts
Patent No.
US 8,674,916
App. No.
13/197,779
Granted
Mar 18, 2014
Kind
B2
Abstract

A driving method with reducing image sticking effect is disclosed. The driving method includes applying a voltage on the data lines for trapping impurities crossing the data lines and lowering the degree of the image sticking effect, and applying different asymmetric waveforms to different data lines for trapping impurities crossing the data lines and lowering the degree of the image sticking effect.

Claims (22)

1. A driving method for reducing image sticking associated with images of a liquid crystal display, the liquid crystal display comprising a plurality of data lines, a plurality of scan lines and a plurality of pixel areas, the driving method comprising:

during a first period of time, sequentially turning on the plurality of scan lines and inputting data of a first image to the plurality of pixel areas;

during a second period of time, sequentially turning on the plurality of scan lines and inputting data of a second image to the plurality of pixel areas; and

between the first period of time and the second period of time, generating and applying a first voltage according to voltage levels corresponding to the data of the first image, the first voltage preventing polarized impurities from crossing the plurality of data lines.

2. The driving method of claim 1 , wherein applying the first voltage is applying the first voltage to a first set of the plurality of data lines.

3. The driving method of claim 1 , wherein generating the first voltage according to the voltage levels corresponding to the data of the first image is generating the first voltage according to an average of the voltage levels corresponding to the data of the first image.

4. The driving method of claim 3 , wherein the first voltage is equivalent to the average of the voltage levels corresponding to the data of the first image.

5. The driving method of claim 1 , wherein applying the first voltage is applying the first voltage to all of the plurality of data lines.

6. The driving method of claim 1 , further comprising:

between the first period of time and the second period of time, applying a second voltage to a second set of the plurality of data lines.

7. The driving method of claim 6 , wherein a polarity of the second voltage is opposite to a polarity of the first voltage.

8. A driving method for reducing image sticking associated with images of a liquid crystal display, the liquid crystal display comprising a plurality of data lines, a plurality of scan lines and a plurality of pixel areas, the driving method comprising:

during a first period of time, sequentially turning on the plurality of scan lines and inputting data of a first image to the plurality of pixel areas;

during a second period of time, sequentially turning on the plurality of scan lines and inputting data of a second image to the plurality of pixel areas; and

between the first period of time and the second period of time, generating and applying a first voltage according to voltage levels corresponding to data of the first image on a first set of the plurality of data lines, the first voltage preventing polarized impurities from crossing the first set of the plurality of data lines.

9. The driving method of claim 8 , wherein applying the first voltage is applying the first voltage to the first set of the plurality of data lines.

10. The driving method of claim 8 , wherein generating the first voltage according to the voltage levels corresponding to the data of the first image on the first set of the plurality of data lines is generating the first voltage according to an average of the voltage levels corresponding to the data of the first image on the first set of the plurality of data lines.

11. The driving method of claim 10 , wherein the first voltage is equivalent to the average of the voltage levels corresponding to the data of the first image on the first set of the plurality of data lines.

12. The driving method of claim 8 , further comprising:

between the first period of time and the second period of time, generating a second voltage according to voltage levels corresponding to data of the first image on a second set of the plurality of data lines, and applying the second voltage to the second set of the plurality of data lines.

13. The driving method of claim 12 , wherein generating the second voltage according to the voltage levels corresponding to the data of the first image on the second set of the plurality of data lines is generating the second voltage according to an average of the voltage levels corresponding to the data of the first image on the second set of the plurality of data lines.

14. The driving method of claim 13 , wherein the second voltage is equivalent to the average of the voltage levels corresponding to the data of the first image on the second set of the plurality of data lines.

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 Aug 29, 2011
From: LIU, PIN-MIAO; LIEN, SHUI-CHIH; HUANG, CHIA-HORNG; LIAO, CHIEN-HUANG; HO, YU-HSI; CHANG, TING-JUI; HSIEH, YAO-JEN; SU, JENN-JIA
To: AU OPTRONICS CORP.
Reel/Frame 026818/0815 →
Priority Claims (1)
TW 95142265 A · Nov 15, 2006 · national
Continuity (2)
Continuation In Part 11747920 · May 14, 2007
Related Publication 20120200551A1 · Aug 9, 2012