Display apparatus and driving method of display panel

Patent metadata

Field	Value
Publication number	US-2019180704-A1
Application number	US-201815970900-A
Country	US
Kind code	A1
Filing date	May 4, 2018
Priority date	Dec 12, 2017
Publication date	Jun 13, 2019
Grant date	—

Abstract

A display apparatus and a driving method of a display panel are provided. A display driver drives the display panel so that the adjacent pixels in each of first display segments and each of the second display segments on a scan line have opposite polarities, and two pixels located on junction section of adjacent first display segment and second display segment have the same polarity.

First claim

What is claimed is:

1 . A display apparatus, comprising:
a display panel, having a plurality of scan lines, a plurality of data lines and a plurality of pixels arranged in an array, and a pixel region on each of the scan lines being divided into a tail display segment, a plurality of first display segments, a plurality of second display segments and a third display segment, wherein the tail display segment is located at an end of the corresponding scan line, the first display segments and the second display segments other than the tail display segment and the third display segment are alternately arranged on the corresponding scan line; and a display driver, coupled to the display panel, and providing a plurality of driving signals to the display panel, so that adjacent pixels in the tail display segment, each of the first display segments, each of the second display segments and the third display segment have opposite polarities, and two pixels located on a junction section of adjacent first display segment and second display segment have the same polarity.

2 . The display apparatus according to claim 1 , wherein each of the pixels comprises three sub-pixels, and the adjacent sub-pixels have opposite polarities.

3 . The display apparatus according to claim 2 , wherein a sum of the sub-pixels included in the tail display segment and the third display segment is equal to a sum of the sub-pixels included in one first display segment and one second display segment.

4 . The display apparatus according to claim 3 , wherein the numbers of the sub-pixels included in the tail display segment, each of the first display segments, each of the second display segments and the third display segment are the same.

5 . The display apparatus according to claim 1 , wherein on each of the scan lines, the number of the first display segments is equal to the number of the second display segments.

6 . The display apparatus according to claim 1 , wherein the numbers of the sub-pixels included in each of the first display segments and each of the second display segments are the same.

7 . A driving method of a display panel, wherein the display panel has a plurality of scan lines, a plurality of data lines and a plurality of pixels arranged in an array, the driving method of the display panel comprising:
dividing a pixel region on each of the scan lines into a tail display segment, a plurality of first display segments, a plurality of second display segments and a third display segment, wherein the tail display segment is located at an end of the corresponding scan line, the first display segments and the second display segments other than the tail display segment and the third display segment are alternately arranged on the corresponding scan line; and providing a plurality of driving signals to the display panel, so that adjacent pixels in the tail display segment, each of the first display segments, each of the second display segments and the third display segment have opposite polarities, and two pixels located on a junction section of adjacent first display segment and second display segment have the same polarity.

8 . The driving method of the display panel according to claim 7 , wherein each of the pixels comprises three sub-pixels, and the adjacent sub-pixels have opposite polarities.

9 . The driving method of the display panel according to claim 8 , wherein a sum of the sub-pixels included in the tail display segment and the third display segment is equal to a sum of the sub-pixels included in one first display segment and one second display segment.

10 . The driving method of the display panel according to claim 9 , wherein the numbers of the sub-pixels included in the tail display segment, each of the first display segments, each of the second display segments and the third display segment are the same.

Assignees

• Au Optronics Corp

Inventors

• Cheng Mei-Chun
• Wang Zun-Yu
• Wang Chia-Chu
• Huang Yi-Ping
• Gu hao-ren
• Fang Tzu-Han

Classifications

• G09G2320/0209

  Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display · CPC title

• G09G3/3607 Primary

  for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127) · CPC title

• G09G2320/0242

  Compensation of deficiencies in the appearance of colours · CPC title

• G09G3/3614 Primary

  Control of polarity reversal in general · CPC title