Liquid crystal display panel

Patent metadata

Field	Value
Publication number	US-2017193934-A1
Application number	US-201414416377-A
Country	US
Kind code	A1
Filing date	Oct 21, 2014
Priority date	Sep 29, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

The present disclosure provides a liquid crystal display panel, comprising a plurality of pixels disposed in an array formed by a plurality of data lines and a plurality of scan lines in an orthogonal configuration, wherein the plurality of data lines comprise a first data line corresponding to each column of pixels; and at least one second data line corresponding to each column of pixels or corresponding to at least two adjacent columns of pixels in a group, said at least one second data line not being connected with any pixel in any column, and the sum of change of an input signal of said at least one second data line and that of a pixel driving signal of each column of pixels or of said at least two adjacent columns of pixels in a group being zero, so that a common electrode voltage would not deviate from a predetermined voltage. Therefore, according to the embodiments of the present disclosure, the phenomenon that the common electrode voltage would deviate due to the couple effect of the data lines can be greatly reduced, thus the horizontal crosstalk resulted from the coupled common electrode voltage can be reduced.

First claim

1 . A liquid crystal display panel, comprising:
a plurality of pixels disposed in an array formed by a plurality of data lines and a plurality of scan lines in an orthogonal configuration, wherein the plurality of data lines comprise: a first data line corresponding to each column of pixels, the first data line being connected with each of the pixels in the column so that a pixel driving signal can be input into the pixels in said column through the first date line; and at least one second data line corresponding to each column of pixels or corresponding to at least two adjacent columns of pixels in a group, said at least one second data line not being connected with any pixel in any column, and the sum of change of an input signal of said at least one second data line and that of a pixel driving signal of each column of pixels or of said at least two adjacent columns of pixels in the group being zero, so that a common electrode voltage will not deviate from a predetermined voltage.

2 . The liquid crystal display panel according to claim 1 , wherein only one second data line is provided for each column of pixels, and the input signal of said one second data line has the same amplitude but an opposite polarity as the pixel driving signal of the respective column of pixels.

3 . The liquid crystal display panel according to claim 2 , wherein all the second data lines are arranged on the same side with respect to each column of pixels.

4 . The liquid crystal display panel according to claim 1 , wherein a plurality of second data lines are provided for each column of pixels, and the input signal of said plurality of second data lines has the same amplitude but an opposite polarity as the pixel driving signal of the respective column of pixels.

5 . The liquid crystal display panel according to claim 3 , wherein the plurality of second data lines are arranged on the same side with respect to each column of pixels, or
an even number of second data lines are provided for each column of pixels, and said even number of second data lines are symmetrically arranged on both ends of each column of pixels.

6 . The liquid crystal display panel according to claim 1 , wherein only one second data line is provided for at least two adjacent columns of pixels in each group, and the input signal of said one second data line has the same amplitude but an opposite polarity as the pixel driving signal of said at least two adjacent columns of pixels of the respective group.

7 . The liquid crystal display panel according to claim 6 , wherein all the second data lines are arranged on the same side of said at least two adjacent columns of pixels in the respective group.

8 . The liquid crystal display panel according to claim 1 , wherein a plurality of second data lines are provided for at least two adjacent columns of pixels in each group, and the input signals of said plurality of second data lines each have the same amplitude but an opposite polarity as the pixel driving signal of said at least two adjacent columns of pixels of the respective group.

9 . The liquid crystal display panel according to claim 8 , wherein the plurality of second data lines are arranged on the same side with respect to each column of pixels, or
an even number of second data lines are provided for at least two adjacent columns of pixels in each group, and said even number of second data lines are symmetrically arranged on both ends of said at least two adjacent columns of pixels of the respective group.

10 . The liquid crystal display panel according to claim 1 , wherein the liquid crystal display panel can be driven through column inversion mode, line inversion mode, frame inversion mode, or dot inversion mode.

Assignees

• Shenzhen China Star Optoelect

Inventors

• Liu Huan

Classifications

• G09G3/3614 Primary

  Control of polarity reversal in general · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F2201/121

  common or background · CPC title

• G09G2310/0243

  Details of the generation of driving signals · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title