Driving method of display panel, display panel, and display device

Patent metadata

Field	Value
Publication number	US-11538383-B2
Application number	US-202117341779-A
Country	US
Kind code	B2
Filing date	Jun 8, 2021
Priority date	Apr 23, 2019
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A driving method of a display panel is provided. The driving method of the display panel includes: within one frame, in a charging period of sub-pixels electrically connected to an i th scan line, each multiplexing circuit charging N data lines electrically connected to the multiplexing circuit in a charging sequence of a first preset sequence; in a charging period of sub-pixels electrically connected to a j th scan line, each multiplexing circuit charging the N data lines electrically connected to the multiplexing circuit in a charging sequence of a second preset sequence; the second preset sequence is different from the first preset sequence, and charging rankings of each data line electrically connected to each multiplexing circuit in at least two charging sequences are different, where N is an integer and N≥2, and i and j are positive integers and j≠i.

First claim

What is claimed is:

1. A driving method of a display panel, wherein the display panel comprises a plurality of multiplexing circuits, a plurality of sub-pixels, and a plurality of data lines and a plurality of scan lines electrically connected to the plurality of sub-pixels; and wherein each of the plurality of multiplexing circuits comprises N output ends, and each of the N output ends of each multiplexing circuit is electrically connected to one data line, each of the plurality of multiplexing circuits comprises a first output end and a second output end;
wherein the driving method of the display panel comprises: within one frame, charging, by each multiplexing circuit, in a charging period ti of a i th row of sub-pixels electrically connected to an i th scan line, N data lines electrically connected to the multiplexing circuit in a charging sequence of a first preset sequence, the first output ends of the plurality of multiplexing circuits output data signals to data lines in odd columns firstly, the second output ends of the plurality of multiplexing circuits output data signals to data lines in even columns secondly, within the charging period ti of the i th row of sub-pixels, a charging ranking of the data lines in the odd columns is a first ranking, and a charging ranking of the data lines in the even columns is a second ranking, the data lines in the odd columns charge the sub-pixels after a charging of the data signal is completed, while the data lines in the even columns charge the sub-pixels before the charging of the data signal is completed; and
charging, by each multiplexing circuit, in a charging period tj of a j th row of sub-pixels electrically connected to a j th scan line, N data lines electrically connected to the multiplexing circuit in a charging sequence of a second preset sequence, the second output ends of the plurality of multiplexing circuits output data signals to data lines in the even columns firstly, the first output ends of the plurality of multiplexing circuits output data signals to data lines in the odd columns secondly, within the charging period tj of the j th row of sub-pixels, the charging ranking of the data lines in the odd columns is the second ranking, and the charging ranking of the data lines in the even columns is the first ranking, the data lines in the even columns charge the sub-pixels after the charging of the data signal is completed, while the data lines in odd columns charge the sub-pixels before the charging of the data signal is completed;
wherein the second preset sequence is different from the first preset sequence, and charging rankings of each data line electrically connected to each multiplexing circuit in at least two charging sequences are different, N is an integer and N≥2, i and j are positive integers and j≠i, i is an odd number and j is an even number,
within another frame adjacent to the one frame,
charging, by each multiplexing circuit, in the charging period of sub-pixels electrically connected to the ith scan line, the N data lines electrically connected to the multiplexing circuit in the charging sequence of the second preset sequence; and
charging, by each multiplexing circuit, in the charging period of sub-pixels electrically connected to the jth scan line, the N data lines electrically connected to the multiplexing circuit in the charging sequence of the first preset sequence,
wherein some of the plurality of data lines in odd columns and even columns are respectively electrically connected to the plurality of sub-pixels emitting light of a same color and disposed in rows and columns, the other of the plurality of data lines in odd columns and even columns are respectively electrically connected to the plurality of sub-pixels emitting light of different colors and disposed in rows and columns,
wherein the plurality of sub-pixels emitting light of a same color are arranged one by one in each of the columns, the plurality of sub-pixels emitting light of different colors are arranged alternately in each of the columns,
wherein the plurality of sub-pixels emitting light of a same color are green sub-pixels, the plurality of sub-pixels emitting light of different colors are red sub-pixels and blue sub-pixels,
wherein a pattern of the plurality of sub-pixels emitting light of the same color and the different colors is repeated in every M columns of the plurality of data lines,
wherein 6≤M.

2. The driving method of claim 1 , wherein a charging sequence of the N data lines charged by each multiplexing circuit which is electrically connected to the N data lines changes once every k scan lines, and k is an integer larger than 1.

3. The driving method of claim 2 , wherein k≤8.

4. The driving method of claim 1 , wherein a charging sequence of the N data lines charged by each multiplexing circuit which is electrically connected to the N data lines repeats once every (A N N +1) scan lines.

5. The driving method of claim 1 , wherein N≤6.

6. The driving method of claim 1 , after charging the N data lines electrically connected to each multiplexing circuit by the multiplexing circuit, further comprising:
sending, by a scan driving circuit, a scan signal to each of the plurality of scan lines and controlling sub-pixels electrically connected to each of the plurality of scan lines to be charged.

7. The driving method of claim 1 , further comprising:
in a charging period of sub-pixels electrically connected to each of the plurality of scan lines, when each multiplexing circuit charges a data line corresponding to a last charging ranking in a charging sequence, a scan driving circuit sending a scan signal to each of the plurality of scan lines and controlling the sub-pixels electrically connected to each of the plurality of scan lines to be charged.

8. A display panel, comprising:
a plurality of multiplexing circuits;
a plurality of sub-pixels; and
a plurality of data lines and a plurality of scan lines electrically connected to the plurality of sub-pixels;
wherein each of the plurality of multiplexing circuits comprises N output ends, each of the N output ends of each multiplexing circuit is electrically connected to one data line; and a driving method of the display panel uses the method of claim 1 .

9. The display panel of claim 8 , wherein a charging sequence of the N data lines charged by each multiplexing circuit which is electrically connected to the N data lines changes once every k scan lines, and k is an integer larger than 1.

10. The display panel of claim 8 , wherein a charging sequence of the N data lines charged by each multiplexing circuit which is electrically connected to the N data lines repeats once every (A N N +1) scan lines.

11. The display panel of claim 8 , after charging the N data lines electrically connected to each multiplexing circuit by the multiplexing circuit, further comprising:
sending, by a scan driving circuit, a scan signal to each of the plurality of scan lines and controlling sub-pixels electrically connected to each of the plurality of scan lines to be charged.

12. A display device, comprising: a display panel and a driving chip; wherein the driving chip is electrically connected to the display panel, and the display panel is the display panel of claim 8 .

13. The display device of claim 12 , wherein i is an odd number and j is an even number.

14. The display device of claim 12 , wherein a charging sequence of the N data lines charged by each multiplexing circuit which is electrically connected to the N data lines changes once every k scan lines, and k is an integer larger than 1.

15. The display device of

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Tang Tao
• Chen Xinquan
• Zhang Xiaobao

Classifications

• G09G3/006

  Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309) · CPC title

• G09G2310/08

  Details of timing specific for flat panels, other than clock recovery · CPC title

• G09G3/20 Primary

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2310/0278

  Details of driving circuits arranged to drive both scan and data electrodes · CPC title