Display driving circuit, driving method thereof and display device

• US 10,613,624 B2
• Filed: 03/21/2018
• Issued: 04/07/2020
• Est. Priority Date: 11/07/2017
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Li, Yafei, Gao, Bo, Shi, Tiankuo, Sun, Wei, Zhang, Hao, Dong, Xue, Xue, Zijiao
• Primary Examiner(s): Mishler, Robin J
• Application Number:
  US15/927,932
• Publication Number:
  US 20190138089A1
• Time in Patent Office: 748 Days
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G06T 5/70 Denoising; Smoothing
• CPC Class Codes: G09G 2310/0205 Simultaneous scanning of several lines in flat panels
• CPC Class Codes: G09G 2310/0213 controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
• CPC Class Codes: G09G 2320/08 Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2354/00 Aspects of interface with display user
• CPC Class Codes: G09G 3/2096 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

Abstract

The present disclosure provides a display driving circuit, a driving method thereof and a display device. An eye tracker is integrated into a data driving chip. The eye tracker may determine eye gazing coordinates according to an eye image sent from an eye image acquisition unit; then a graphics processor processes an image to be displayed, according to the eye gazing coordinates sent from the eye tracker; and finally, the data driving chip controls a connected display panel to display according to the processed image to be displayed which is sent from the graphics processor.

Claims

1. A display driving circuit, comprising an eye image acquisition unit, an eye tracker, a data driving chip, a smart display module and a graphics processor, wherein:

the eye image acquisition unit is configured to acquire an eye image;

the eye tracker is connected to the eye image acquisition unit, the eye tracker being configured to determine eye gazing coordinates according to the eye image sent from the eye image acquisition unit;

the graphics processor is connected to the eye tracker, the graphics processor being configured to process an image to be displayed, according to the eye gazing coordinates sent from the eye tracker;

the data driving chip is connected to the graphics processor, the data driving chip being configured to control a connected display panel to display, according to the processed image to be displayed which is sent from the graphics processor;

the graphics processor comprises an area determination module configured to determine a high-definition display area and a low-definition display area of the image to be displayed, according to the eye gazing coordinates;

the smart display module is connected to the graphics processor, and configured to control the display panel to perform multi-row simultaneous scanning on respective rows of sub-pixels of the low-definition display area and to perform progressive scanning on respective rows of sub-pixels of the high-definition display area, according to the processed image to be displayed which is sent from the graphics processor; and

the eye tracker and the smart display module are integrated into the data driving chip.

2. The display driving circuit according to claim 1, wherein the graphics processor comprises:

a rendering module configured to perform rendering processing on at least the high-definition display area of the image to be displayed;

a low-definition processing module configured to perform data processing on the low-definition display area of the image to be displayed; and

a fusion module configured to perform fusion processing on images output by the rendering module and the low-definition processing module.

3. The display driving circuit according to claim 2, wherein:

the rendering module is further configured to perform the rendering processing on the high-definition display area and the low-definition display area of the image to be displayed; and

the low-definition processing module is further configured to perform resolution reduction processing on the low-definition display area of the image to be displayed.

4. The display driving circuit according to claim 2, wherein:

the rendering module is further configured to perform the rendering processing only on the high-definition display area of the image to be displayed; and

the low-definition processing module is further configured to perform compression processing on the low-definition display area of the image to be displayed.

5. The display driving circuit according to claim 2, wherein the graphics processor further comprises:

an anti-distortion module configured to perform anti-distortion processing on the image output by the fusion module; and

a coordinate transformation module configured to determine image gazing coordinates in the anti-distortion processed image corresponding to the eye gazing coordinates.

6. A display device, comprising the display driving circuit according to claim 1 and a display panel.

7. The display device according to claim 6, wherein the display driving circuit comprises a plurality of data driving chips that connect to a plurality of display panels in one-to-one correspondence.

8. The display device according to claim 6, wherein the graphics processor comprises:

a rendering module configured to perform rendering processing on at least the high-definition display area of the image to be displayed;

a low-definition processing module configured to perform data processing on the low-definition display area of the image to be displayed; and

a fusion module configured to perform fusion processing on images output by the rendering module and the low-definition processing module.

9. A driving method of the display driving circuit according to claim 1, comprising:

acquiring, by the eye image acquisition unit, the eye image;

determining, by the eye tracker, the eye gazing coordinates according to the eye image;

processing, by the graphics processor, the image to be displayed according to the eye gazing coordinates determined by the eye tracker, wherein the processing comprises determining a high-definition display area and a low-definition display area of the image to be displayed according to the eye gazing coordinates; and

controlling, by the data driving chip, the connected display panel to display according to the image to be displayed which has been processed by the graphics processor, wherein the controlling comprises controlling the display panel to perform multi-row simultaneous scanning on respective rows of sub-pixels of the low-definition display area and to perform progressive scanning on respective rows of sub-pixels of the high-definition display area, according to the processed image to be displayed which is sent from the graphics processor.

10. The driving method according to claim 9, wherein processing, by the graphics processor, the image to be displayed according to the eye gazing coordinates determined by the eye tracker comprises:

performing rendering processing on at least the high-definition display area of the image to be displayed;

performing data processing on the low-definition display area of the image to be displayed; and

performing fusion processing on the rendering processed and data processed images.

11. The driving method according to claim 10, wherein:

performing rendering processing on at least the high-definition display area of the image to be displayed further comprises performing the rendering processing on the high-definition display area and the low-definition display area of the image to be displayed; and

performing data processing on the low-definition display area of the image to be displayed further comprises performing resolution reduction processing on the low-definition display area of the image to be displayed.

12. The driving method according to claim 10, wherein:

performing rendering processing on at least the high-definition display area of the image to be displayed further comprises performing the rendering processing only on the high-definition display area of the image to be displayed; and

performing data processing on the low-definition display area of the image to be displayed further comprises performing compression processing on the low-definition display area of the image to be displayed.

13. The driving method according to claim 10, wherein processing, by the graphics processor, the image to be displayed according to the eye gazing coordinates determined by the eye tracker further comprises:

performing anti-distortion processing on the fusion processed image; and

determining image gazing coordinates in the anti-distortion processed image corresponding to the eye gazing coordinates.