Method of driving display panel and display apparatus for performing the same

Patent metadata

Field	Value
Publication number	US-2016012788-A1
Application number	US-201514618874-A
Country	US
Kind code	A1
Filing date	Feb 10, 2015
Priority date	Jul 11, 2014
Publication date	Jan 14, 2016
Grant date	—

Abstract

A method of driving a display panel includes: generating a data signal having a difference between a number of positive frames and a number of negative frames; and displaying an image according to the data signal.

First claim

What is claimed is:

1 . A method of driving a display panel, the method comprising:
generating a data signal having a difference between a number of positive frames and a number of negative frames; and displaying an image according to the data signal.

2 . The method of claim 1 , wherein a DC bias is formed in a direction from a pixel electrode of the display panel to a common electrode of the display panel, and the number of negative frames is greater than the number of positive frames.

3 . The method of claim 2 , wherein the data signal is applied to a pixel of the display panel and comprises a frame group,
the frame group comprising:
N positive frames, where N is a natural number; and
M negative frames, where M is a natural number greater than the N, and the frame group is repeated in the data signal.

4 . The method of claim 3 , wherein the N is equal to one and the M is equal to three, and
one positive frame and three negative frames are arranged sequentially, and the arrangement, in which one positive frame and three negative frames are arranged sequentially, is repeated in the frame group.

5 . The method of claim 4 , wherein the display panel comprises a plurality pixel groups, each of the pixel groups comprises four pixels forming two rows and two columns, and
the four pixels comprise:
one pixel to which a positive pixel voltage is applied; and
three pixels to which a negative pixel voltage is applied.

6 . The method of claim 1 , wherein a DC bias is formed in a direction from a common electrode of the display panel to a pixel electrode of the display panel, and
the number of positive frames is greater than the number of negative frames.

7 . The method of claim 6 , wherein the data signal is applied to a pixel of the display panel and comprises a frame group,
the frame group comprising:
M negative frames, where M is a natural number; and
N positive frames, where N is a natural number greater than the M, and the frame group is repeated in the data signal.

8 . The method of claim 7 , wherein the M is equal to one and the N is equal to three, and
one negative frame and three positive frames are arranged sequentially, and the arrangement, in which one negative frame and three positive frames are arranged sequentially, is repeated in the frame group.

9 . The method of claim 7 , wherein the display panel comprises a plurality pixel groups, each of the pixel groups comprises four pixels forming two rows and two columns, and
the four pixels comprise:
one pixel to which a negative pixel voltage is applied; and
three pixels to which a positive pixel voltage is applied.

10 . A display apparatus comprising:
a timing controller configured to generate a data signal having a difference between a number of positive frames and a number of negative frames; and a display panel configured to display an image according to the data signal.

11 . The display apparatus of claim 10 , wherein a DC bias is formed in a direction from a pixel electrode of the display panel to a common electrode of the display panel, and
the number of negative frames is greater than the number of positive frames.

12 . The display apparatus of claim 10 , wherein the data signal comprises a frame group,
the frame group comprising:
N positive frames, where N is a natural number; and
M negative frames, where M is a natural number greater than the N, and the frame group is repeated in the data signal.

13 . The display apparatus of claim 12 , wherein the N is equal to one and the M is equal to three, and
one positive frame and three negative frames are arranged sequentially, and the arrangement, in which one positive frame and three negative frames are arranged sequentially, is repeated in the frame group, and wherein the display panel comprises a plurality of pixel groups, each of the pixel groups comprises four pixels forming two rows and two columns, and the four pixels comprise:
one pixel to which a positive pixel voltage is applied; and
three pixels to which a negative pixel voltage is applied.

14 . The display apparatus of claim 10 , wherein a DC bias is formed in a direction from a common electrode of the display panel to a pixel electrode of the display panel, and
the number of positive frames is greater than the number of negative frames.

15 . The display apparatus of claim 14 , wherein the data signal comprises a frame group,
the frame group comprising:
M negative frames, where M is a natural number; and
N positive frames, where N is a natural number greater than the M, and
the frame group is repeated in the data signal.

16 . The display apparatus of claim 15 , wherein the M is equal to 1 and the N is equal to 3, and
one negative frame and three positive frames are arranged sequentially, and the arrangement, in which one negative frame and three positive frames are arranged sequentially, is repeated in the frame group, and wherein the display panel comprises a plurality of pixel groups, each of the pixel groups comprises four pixels forming two rows and two columns, and the four pixels comprise:
one pixel to which a negative pixel voltage is applied; and
three pixels to which a positive pixel voltage is applied.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Gi-Chang
• Wang In-Soo

Classifications

• G09G3/3685

  Details of drivers for data electrodes · CPC title

• G09G3/3614 Primary

  Control of polarity reversal in general · CPC title

• G09G2310/06

  Details of flat display driving waveforms · CPC title

• G09G3/3659

  the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes · CPC title

• G09G2320/02

  Improving the quality of display appearance · CPC title