Driving method for display panel, display panel and display apparatus

Patent metadata

Field	Value
Publication number	US-11837149-B2
Application number	US-202117925872-A
Country	US
Kind code	B2
Filing date	Jan 4, 2021
Priority date	Dec 21, 2020
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A driving method for a display panel, a display panel and a display apparatus, including: determining a gaze region, watched by eyes of a user, in a display region of the display panel; and refreshing data of at least some of sub-pixels in the display panel according to a set rule and in combination with the gaze region.

First claim

What is claimed is:

1. A driving method for driving a display panel, comprising:
determining a gaze region, watched by eyes of a user, in a display region of the display panel; and
refreshing data of at least some of sub-pixels in the display panel according to the gaze region;
wherein the gaze region, watched by eyes of the user, in the display region of the display panel is determined within K display frames of a refresh cycle; where the refresh cycle comprises M consecutive display frames; M is an integer greater than 1, K is an integer greater than 0; and
the refreshing data of at least some of sub-pixels in the display panel according to the gaze region comprises:
in the refresh cycle, refreshing data of the sub-pixels in the gaze region by adopting a first refresh frequency, and refreshing data of the sub-pixels in a non-gaze region except the gaze region by adopting a second refresh frequency;
wherein the first refresh frequency is different from the second refresh frequency;
wherein the second refresh frequency is lower than the first refresh frequency; and
wherein the second refresh frequency is (M−K)/M times of the first refresh frequency; where K<M.

2. The driving method according to claim 1 , wherein the refreshing data of the sub-pixels in the gaze region by adopting a first refresh frequency, and refreshing data of the sub-pixels in a non-gaze region except the gaze region by adopting a second refresh frequency comprises:
refreshing data of the sub-pixels only in the gaze region in the K display frames; and
refreshing data of the sub-pixels in both the gaze region and the non-gaze region in display frames except the K display frames in the refresh cycle.

3. The driving method according to claim 2 , wherein M=2, the gaze region, watched by eyes of the user, in the display region of the display panel is determined within an odd display frame of the refresh cycle;
the refreshing data of the sub-pixels only in the gaze region in the K display frames; and refreshing data of the sub-pixels in both the gaze region and the non-gaze region in display frames except the K display frames in the refresh cycle comprises:
refreshing data of the sub-pixels only in the gaze region within the odd display frame of the refresh cycle; and
refreshing data of the sub-pixels in both the gaze region and the non-gaze region in an even display frame of the refresh cycle.

4. The driving method according to claim 3 , wherein the display region comprises a plurality of sub-pixels, a plurality of scanning lines, a plurality of data lines, and a plurality of frequency modulation control lines provided therein;
one row of the sub-pixels corresponds to at least one scanning line of the plurality of scanning lines, and
one column of the sub-pixels corresponds to at least one data line of the plurality of data lines and at least one frequency modulation control line of the plurality of frequency modulation control lines;
each sub-pixel of the plurality of sub-pixels comprises a data writing circuit, a frequency modulation control circuit and a storage electrode;
wherein a control terminal of the data writing circuit is coupled to a corresponding scanning line, a first terminal of the data writing circuit is coupled to a corresponding data line, and a second terminal of the data writing circuit is coupled to a first terminal of the frequency modulation control circuit; a control terminal of the frequency modulation control circuit is coupled to a corresponding frequency modulation control line, and a second terminal of the frequency modulation control circuit is coupled to a corresponding storage electrode;
the refreshing data of the sub-pixels only in the gaze region within the odd display frame of the refresh cycle comprises:
loading gate turn-on signals to the plurality of scanning lines row by row in the odd display frame, so as to control the data writing circuits in the sub-pixels row by row to electrically connect the data lines to the frequency modulation control circuits coupled to the data writing circuits, respectively;
loading frequency modulation turn-on signals to frequency modulation control lines corresponding to the sub-pixels in the gaze region and loading frequency modulation turn-off signals to frequency modulation control lines except the frequency modulation control lines corresponding to the sub-pixels in the gaze region when the gate turn-on signals are loaded to the scanning lines corresponding to sub-pixels in the gaze region, to control the frequency modulation control circuits in the sub-pixels in the gaze region to electrically connect the data writing circuits and the storage electrodes coupled to the frequency modulation control circuits, respectively; and
loading data signals to the data lines corresponding to the sub-pixels in the gaze region, respectively,
the refreshing data of the sub-pixels in both the gaze region and the non-gaze region in the even display frame of the refresh cycle comprises:
loading gate turn-on signals to the plurality of scanning lines row by row in the even display frame, so as to control the data writing circuits in the sub-pixels row by row to electrically connect the data lines to the frequency modulation control circuits coupled to the data writing circuits, respectively;
loading frequency modulation turn-on signals to the plurality of frequency modulation control lines, so as to control the frequency modulation control circuits in the sub-pixels to electrically connect the data writing circuits to the storage electrodes coupled to the frequency modulation control circuits, respectively; and
loading data signals to the data lines corresponding to the plurality of sub-pixels.

5. The driving method according to claim 2 , wherein M=2, the gaze region, watched by eyes of the user, in the display region of the display panel is determined within an even display frame of the refresh cycle;
the refreshing data of the sub-pixels only in the gaze region in the K display frames; and refreshing data of the sub-pixels in both the gaze region and the non-gaze region in display frames except the K display frames in the refresh cycle comprises:
refreshing data of the sub-pixels in both the gaze region and the non-gaze region within an odd display frame of the refresh cycle; and
refreshing data of the sub-pixels only in the gaze region in an even display frame of the refresh cycle.

6. The driving method according to claim 5 , wherein the display region comprises a plurality of sub-pixels, a plurality of scanning lines, a plurality of data lines, and a plurality of frequency modulation control lines provided therein;
one row of the sub-pixels corresponds to at least one scanning line of the plurality of scanning lines, and
one column of the sub-pixels corresponds to at least one data line of the plurality of data lines and at least one frequency modulation control line of the plurality of frequency modulation control lines;
each sub-pixel of the plurality of sub-pixels comprises a data writing circuit, a frequency modulation control circuit and a storage electrode;
wherein a control terminal of the data writing circuit is coupled to a corresponding scanning line, a first terminal of the data writing circuit is coupled to a corresponding data line, and a second terminal of the data writing circuit is coupled to a first terminal of the frequency modulation control circuit; a control terminal of the frequency modulation control circuit is coupled to a corresponding frequency modulation control line, and a second terminal of the frequency modulation control circuit is coupled to a corresponding storage electrode;
the refreshing data of the sub-pixels in both the gaze region and the non-gaze region within the odd display frame of the refresh cyc

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zong Shaolei
• Duan Xin
• Sun Jigang
• Sun Wei

Classifications

• G09G3/2096 Primary

  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

• G09G2310/0267

  Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays · CPC title

• G09G2310/0275

  Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current · CPC title

• G09G2310/04

  Partial updating of the display screen · CPC title

• G09G2310/08

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