Display device and method for driving the same

Patent metadata

Field	Value
Publication number	US-11961479-B2
Application number	US-202017610581-A
Country	US
Kind code	B2
Filing date	Dec 22, 2020
Priority date	Dec 22, 2020
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

A display device and a method for driving the display device are described, where the display device includes a plurality of pixel island groups, a plurality of lenses, a positioning module, and a gate driving chip. The plurality of pixel island groups are arranged in array, wherein each of the pixel island groups includes a plurality of pixel islands, and different pixel islands are able to be scanned in different scanning modes. The positioning module is configured to determine a gaze area and a non-gaze area according to gazed coordinates of human eye. The gate driving chip is configured to provide gate driving signals in a first driving manner to sub-pixel units in the gaze area, and provide gate driving signals simultaneously in a second driving manner to sub-pixel units in the non-gaze area during a scanning stage of the sub-pixel units in the non-gaze area.

First claim

What is claimed is:

1. A display device, comprising:
a plurality of pixel island groups arranged in array, wherein each of the pixel island groups comprises a plurality of pixel islands, each of the pixel islands comprises a plurality of sub-pixel units of a same color arranged in array, and different pixel islands are able to be scanned in different scanning modes, wherein N pixel island groups are provided in a gaze area, N is a positive integer greater than or equal to 1, and the gaze area and a non-gaze area are determined according to gazed coordinates of human eye;
a plurality of lenses arranged in a one-to-one correspondence with the pixel islands, configured to image corresponding pixel islands to a preset virtual image plane;
wherein sub-pixel units in the gaze area are provided with gate driving signals in a first driving manner during a scanning stage of the sub-pixel units in the gaze area, and sub-pixel units in the non-gaze area are simultaneously provided with gate driving signals in a second driving manner during a scanning stage of the sub-pixel units in the non-gaze area,
wherein a gate driving signal is independently provided to a corresponding pixel island, and
wherein the display device further comprises a plurality of switch components arranged in a one-to-one correspondence with the pixel islands, wherein each of the switch components comprises a plurality of switch units, a number of the switch units is the same as a number of columns of sub-pixel units in the pixel island, the sub-pixel units in a same column in the pixel island are connected to a data line through one of the switch units, and the switch unit is configured to connect the data line with the sub-pixel units in the same column in the pixel island in response to a control signal.

2. The display device of claim 1 , wherein
the first driving manner comprises: gate driving signals are provided to the sub-pixel units in the gaze area row by row; and
the second driving manner comprises: gate driving signals are provided to the sub-pixel units in multiple rows of the gaze area simultaneously.

3. The display device of claim 1 , wherein, during scanning of one frame, gate driving signals are able to be provided to the sub-pixel units in any order; and
during scanning of one frame, gate driving signals are provided to the sub-pixel units in the gaze area.

4. The display device of claim 1 , further comprising:
a source driving circuit, configured to output data signals according to pixel values;
wherein, the source driving circuit is configured to provide a data signal to a column of sub-pixel units in the gaze area according to a pixel value during the scanning stage of the sub-pixel units in the gaze area, and provide a data signal to multiple columns of sub-pixel units in the non-gaze area according to a pixel value during the scanning stage of the sub-pixel units in the non-gaze area.

5. The display device of claim 4 , wherein the pixel island groups comprise:
an R pixel island, comprising N1 rows and M1 columns of R sub-pixel units, wherein the R sub-pixel units in X-th row and Y-th column and the R sub-pixel units in (X+2)-th row and Y-th column are located in a same column, and the R sub-pixel units in X-th row and Y-th column and the R sub-pixel units in X-th row and (Y+2)-th column are located in a same row, where X is a positive integer greater than or equal to 1 and less than or equal to N1-2, and Y is a positive integer greater than or equal to 1 and less than or equal to M1-2;
a B pixel island, comprising N1 rows and M1 columns of B sub-pixel units, wherein the B sub-pixel units in X-th row and Y-th column and the B sub-pixel units in (X+2)-th row and Y-th column are located in a same column, and the B sub-pixel units in X-th row and Y-th column and the B sub-pixel units in X-th row and (Y+2)-th column are located in a same row, where X is a positive integer greater than or equal to 1 and less than or equal to N1-2, and Y is a positive integer greater than or equal to 1 and less than or equal to M1-2;
a first G pixel island, comprising N1 rows and M1 columns of first G sub-pixel units, wherein the first G sub-pixel units in X-th row and Y-th column and the first G sub-pixel units in (X+2)-th row and Y-th column are located in a same column, and the first G sub-pixel units in X-th row and Y-th column and the first G sub-pixel units in X-th row and (Y+2)-th column are located in a same row, where X is a positive integer greater than or equal to 1 and less than or equal to N1-2, and Y is a positive integer greater than or equal to 1 and less than or equal to M1-2;
a second G pixel island, comprising N1 rows and M1 columns of second G sub-pixel units, wherein the second G sub-pixel units in X-th row and Y-th column and the second G sub-pixel units in (X+2)-th row and Y-th column are located in a same column, and the second G sub-pixel units in X-th row and Y-th column and the second G sub-pixel units in X-th row and (Y+2)-th column are located in a same row, where X is a positive integer greater than or equal to 1 and less than or equal to N1-2, and Y is a positive integer greater than or equal to 1 and less than or equal to M1-2;
wherein, N1 and M1 are positive integers greater than 1, and the pixel islands are respectively formed by the R pixel island, the B pixel island, the first G pixel island, and the second G pixel island.

6. The display device of claim 5 , wherein:
the R sub-pixel units in N1 rows and M1 columns are imaged by corresponding lenses to the preset virtual image plane to form R virtual image units in N1 rows and M1 columns;
the B sub-pixel units in N1 rows and M1 columns are imaged by corresponding lenses to the preset virtual image plane to form B virtual image units in N1 rows and M1 columns;
the first G sub-pixel units in N1 rows and M1 columns are imaged by corresponding lenses to the preset virtual image plane to form first G virtual image units in N1 rows and M1 columns;
the second G sub-pixel units in N1 rows and M1 columns are imaged by corresponding lenses to the preset virtual image plane to form second G virtual image units in N1 rows and M1 columns;
among the virtual image units formed by the R pixel island and the B pixel island, in each of row and column direction, a R virtual image unit is arranged as only adjacent to B virtual image units, and a B virtual image unit is arranged as only adjacent to R virtual image units;
among the virtual image units formed by the first G pixel island and the second G pixel island, in each of row and column direction, a first G virtual image unit is arranged as only adjacent to second G virtual image units, and a second G virtual image unit is arranged as only adjacent to first G virtual image units;
the first G virtual image units and the R virtual image units are arranged in a one-to-one correspondence, and any first G virtual image unit at least partially overlaps with a corresponding R virtual image unit;
the second G virtual image units and the B virtual image units are arranged in a one-to-one correspondence, and any second G virtual image unit at least partially overlaps with a corresponding B virtual image unit.

7. The display device of claim 6 , further comprising:
a processing unit configured to generate pixel values corresponding to the sub-pixel units in the gaze area based on first image data corresponding to the gaze area, and generate pixel values corresponding to the sub-pixel units in the non-gaze area based on second image data corresponding to the non-gaze area, wherein the first image data and the second image data are comprised in RGB image data acquired by the display device.

8. The display device of claim 7 , wherein generating the pixel values corresponding t

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Shi Tiankuo
• Sun Wei
• Hou Yifan
• Ji Zhihua
• Zhang Xiaomang
• Liu Rui
• Sun Jigang
• Bi Yuxin
• Dong Xue

Classifications

• G09G3/3266 Primary

  Details of drivers for scan electrodes · CPC title

• G09G3/2096

  Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167) · CPC title

• G09G3/3275

  Details of drivers for data electrodes · CPC title

• G09G2300/0443

  with several sub-pixels for the same colour in a pixel, not specifically used to display gradations (G09G3/364 takes precedence) · CPC title

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title