Driving circuit, display apparatus, and method of operating driving circuit

Patent metadata

Field	Value
Publication number	US-12400598-B2
Application number	US-202218264043-A
Country	US
Kind code	B2
Filing date	Nov 30, 2022
Priority date	Nov 30, 2022
Publication date	Aug 26, 2025
Grant date	Aug 26, 2025

Abstract

A driving circuit is provided. The driving circuit includes one or more scan circuits; wherein the one or more scan circuits comprise a first scan circuit; wherein the first scan circuit comprises a plurality of first scan sub-circuits; and at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to drive two display sub-areas of a plurality of display sub-areas of a display area with two different driving frequencies in at least one frame of image, respectively.

First claim

What is claimed is:

1. A driving circuit, comprising one or more scan circuits;
wherein the one or more scan circuits comprise a first scan circuit;
wherein the first scan circuit comprises a plurality of first scan sub-circuits; and
at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to drive two display sub-areas of a plurality of display sub-areas of a display area with two different driving frequencies in at least one frame of image, respectively;
wherein the one or more scan circuits further comprises a second scan circuit configured to receive a second start signal from a second start signal line, the second start signal line being configured to provide the second start signal to all scan units of the second scan circuit; and
the second scan circuit is configured to provide control signals to the plurality of display sub-areas with a same frequency.

2. The driving circuit of claim 1 , wherein the at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to receive start signals from two start signal lines of a plurality of start signal lines with two different frequencies in at least one frame of image, respectively.

3. The driving circuit of claim 1 , wherein the at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to provide control signals to the two display sub-areas of the plurality of display sub-areas with two different frequencies in at least one frame of image, respectively.

4. The driving circuit of claim 1 , wherein the at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to drive two display sub-areas of a plurality of display sub-areas of a display area with a same driving frequency in at least another frame of image, respectively.

5. The driving circuit of claim 1 , wherein, in a first mode, the plurality of first scan sub-circuits are configured to provide control signals to the plurality of display sub-areas with a same frequency.

6. A driving circuit, comprising one or more scan circuits;
wherein the one or more scan circuits comprise a first scan circuit;
wherein the first scan circuit comprises a plurality of first scan sub-circuits; and
at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to drive two display sub-areas of a plurality of display sub-areas of a display area with two different driving frequencies in at least one frame of image, respectively;
wherein, in a second mode, the plurality of first scan sub-circuits are configured to provide control signals to the plurality of display sub-areas with a same frequency in a first frame of image; and
in the second mode, the at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to provide control signals to two display sub-areas of the plurality of display sub-areas with two different frequencies in a second frame of image, respectively.

7. The driving circuit of claim 6 , wherein, in the second mode,
at least one of the plurality of first scan sub-circuits is configured to output control signals in the second frame of image at a frequency lower than a frequency of outputting control signals in the first frame of image by the at least one of the plurality of first scan sub-circuits; and
at least another one of the plurality of first scan sub-circuits is configured to output control signals in the second frame of image at a frequency higher than a frequency of outputting control signals in the first frame of image by the at least another one of the plurality of first scan sub-circuits.

8. The driving circuit of claim 6 , wherein, in the second mode,
at least one of the plurality of first scan sub-circuits is not configured to output control signals in the second frame of image; and
at least another one of the plurality of first scan sub-circuits is configured to output control signals in the second frame of image at a frequency higher than a frequency of outputting control signals in the first frame of image by the at least another one of the plurality of first scan sub-circuits.

9. The driving circuit of claim 6 , wherein the one or more scan circuits further comprises a third scan circuit configured to provide control signals to the plurality of display sub-areas with a same frequency in the first frame of image and the second frame of image.

10. The driving circuit of claim 1 , wherein the one or more scan circuits further comprises an auxiliary first scan circuit;
the first scan circuit and the auxiliary first scan circuit are configured to independently provide control signals to a first display sub-area first part and a first display sub-area second part of a first display sub-area; and
a respective row of subpixels in the first display sub-area first part and a respective row of subpixels in the first display sub-area second part are in a same row.

11. A display apparatus, comprising a display panel, a driving circuit, and a plurality of start signal lines;
wherein the driving circuit comprises one or more scan circuits;
wherein the one or more scan circuits comprise a first scan circuit;
wherein the first scan circuit comprises a plurality of first scan sub-circuits; and
at least two first scan sub-circuits of the plurality of first scan sub-circuits are configured to drive two display sub-areas of a plurality of display sub-areas of a display area with two different driving frequencies in at least one frame of image, respectively;
wherein the display panel comprises the display area; and
the display area comprises the plurality of display sub-areas;
wherein, in a second mode, the plurality of start signal lines are configured to provide start signals to the plurality of first scan sub-circuits with a same frequency in a first frame of image; and
at least two start signal lines of the plurality of start signal lines are configured to provide start signals to the at least two respective scan sub-circuits of the plurality of respective scan sub-circuits with two different frequencies in a second frame of image, respectively.

12. The display apparatus of claim 11 , wherein at least two start signal lines of the plurality of start signal lines are configured to provide start signals to the at least two first scan sub-circuits of the plurality of first scan sub-circuits with two different frequencies in at least one frame of image, respectively.

13. The display apparatus of claim 11 , wherein, in a first mode, the plurality of start signal lines are configured to provide start signals to the plurality of first scan sub-circuits with a same frequency.

14. The display apparatus of claim 11 , wherein, in the second mode,
at least one of the plurality of start signal lines is configured to provide start signals in the second frame of image to at least one of the plurality of first scan sub-circuits at a frequency lower than a frequency of providing start signals in the first frame of image by the at least one of the plurality of start signal lines to the at least one of the plurality of first scan sub-circuits; and
at least another one of the plurality of start signal lines is configured to provide start signals in the second frame of image to at least another one of the plurality of first scan sub-circuits at a frequency higher than a frequency of providing start signals in the first frame of image by the at least another one of the plurality of start signal lines to the at least another one of the plurality of first scan sub-circuits.

15. The display apparatus of cl

Assignees

• Boe Technology Group Co Ltd

Inventors

• Feng Yu
• Liu Libin
• Shi Shiming

Classifications

• G09G2340/0435

  Change or adaptation of the frame rate of the video stream · CPC title

• G09G2310/08

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

• G09G2310/0267

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

• G09G2310/0202

  Addressing of scan or signal lines · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title