Display control method, display control device, display apparatus and computer readable medium

Patent metadata

Field	Value
Publication number	US-12438998-B2
Application number	US-202118273330-A
Country	US
Kind code	B2
Filing date	Oct 27, 2021
Priority date	Oct 27, 2021
Publication date	Oct 7, 2025
Grant date	Oct 7, 2025

Abstract

The present disclosure provides a display control method, including: performing a splitting processing on a source video stream of a display panel in response to a multi-path display control instruction, to obtain a plurality of same video sub-streams; acquiring a processing parameter corresponding to each video sub-stream, and processing the video sub-stream according to the processing parameter; and performing a tiling and merging operation on the processed video sub-streams to obtain an output video stream, and outputting the output video stream to the display panel for displaying. The present disclosure further provides a display control device, a display apparatus, and a computer readable medium.

First claim

What is claimed is:

1. A display control method, comprising:
performing a splitting processing on a source video stream of a display panel in response to a multi-path display control instruction, to obtain a plurality of video sub-streams the same as each other;
acquiring a processing parameter corresponding to each video sub-stream, and processing the video sub-stream according to the processing parameter; and
performing a tiling and merging operation on the processed video sub-streams to obtain an output video stream, and outputting the output video stream to the display panel for displaying,
the method further comprises:
before performing the tiling and merging operation on the processed video sub-streams to obtain the output video stream, performing a difference analysis on at least two of the processed video sub-streams in pairs according to a preset second analysis item, wherein the second analysis item comprises at least one of a pixel value difference analysis, a pixel gray value difference analysis, and a pixel gradient characteristic value difference analysis;
after performing the difference analysis on at least two of the processed video sub-streams in pairs according to the preset second analysis item, marking pixels satisfying a preset marking condition in an On Screen Display manner according to the difference analysis result, wherein the marking condition is that a difference value between any two pixels subjected to the difference analysis is greater than a preset difference threshold.

2. The display control method according to claim 1 , further comprising:
before acquiring the processing parameter corresponding to each video sub-stream, and processing the video sub-stream according to the processing parameter, performing a video analysis on each video sub-stream according to a preset first analysis item,
wherein the first analysis item comprises:
at least one of a color waveform analysis, a video luminance waveform analysis, a video color histogram analysis, a video luminance histogram analysis, a video color vector analysis, a video luminance pseudo-color marking, a video focus quality analysis, a video luminance area marking, a video pixel visualization marking.

3. The display control method according to claim 1 , wherein the processing parameter comprises: at least one of a color gamut parameter, a brightness parameter, a color temperature parameter, and a sharpness parameter.

4. The display control method according to claim 1 , further comprising:
before performing the splitting processing on the source video stream of the display panel in response to the multi-path display control instruction, to obtain the plurality of video sub-streams the same as each other, performing a conversion process on the source video stream according to a display parameter of the display panel,
wherein the display parameter comprises: at least one of a timing parameter, a color parameter, a resolution parameter, and a frame rate parameter.

5. The display control method according to claim 1 , wherein the multi-path display control instruction comprises the number of the video sub-streams; and
the performing the splitting processing on the source video stream of the display panel in response to the multi-path display control instruction, to obtain the plurality of video sub-streams the same as each other, comprises:
performing the splitting processing on the source video stream according to the number of the video sub-streams and a resolution of the display panel.

6. The display control method according to claim 1 , wherein the performing the tiling and merging operation on the processed video sub-streams to obtain the output video stream, comprises:
generating a timing control signal according to a timing parameter corresponding to the display panel, performing a timing adjustment on the processed video sub-streams according to the timing control signal, and performing the tiling and merging operation on the video sub-streams subjected to the timing adjustment.

7. The display control method according to claim 1 , wherein the performing the tiling and merging operation on the processed video sub-streams to obtain the output video stream, comprises:
determining an arrangement according to the number of the video sub-streams and the resolution of the display panel, and determining a first display area corresponding to each video sub-stream; and
performing the tiling and merging operation on the processed video sub-streams according to the arrangement and the first display area corresponding to each video sub-stream.

8. The display control method according to claim 7 , further comprising:
performing a video analysis on each video sub-stream according to a preset first analysis item;
the determining the arrangement according to the number of the video sub-streams and the resolution of the display panel, and determining the first display area corresponding to each video sub-stream, comprises:
determining the arrangement according to the number of the video sub-streams and the resolution of the display panel, determining the first display area corresponding to each video sub-stream, and determining a second display area corresponding to a video analysis result image, the first display area and the second display area being not overlapped with each other; and
the performing the tiling and merging operation on the processed video sub-streams according to the arrangement and the first display area corresponding to each video sub-stream, comprises:
performing the tiling and merging operation on the processed video sub-streams and the video analysis result image according to the arrangement, the first display area corresponding to each video sub-stream and the second display area corresponding to the video analysis result image.

9. A display control device, comprising:
a splitting processing module comprising a plurality of split output terminals, the splitting processing module being configured to perform a splitting processing on a source video stream of a display panel in response to a multi-path display control instruction, to obtain a plurality of video sub-streams the same as each other, and output each video sub-stream through a corresponding one of the split output terminals;
a video sub-stream processing module comprising a plurality of processing units, each processing unit corresponding to one split output terminal, and being configured to acquire a processing parameter corresponding to each video sub-stream, process the video sub-stream according to the processing parameter, and output the processed video sub-stream; and
a tiling and merging module configured to perform a tiling and merging operation on the processed video sub-streams to obtain an output video stream, and output the output video stream to the display panel for displaying,
wherein the tiling and merging module is configured to determine an arrangement according to the number of the video sub-streams and the resolution of the display panel, and determine a first display area corresponding to each video sub-stream; and
perform the tiling and merging operation on the processed video sub-streams according to the arrangement and the first display area corresponding to each video sub-stream,
wherein the video sub-stream processing module comprises a plurality of analysis units;
the tiling and merging module is configured to determine the arrangement according to the number of the video sub-streams and the resolution of the display panel, determine the first display area corresponding to each video sub-stream, and determine a second display area corresponding to a video analysis result image of each analysis unit, the first display area and the second

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wu Congrui
• Geng Lihua
• Ma Xitong
• Duan Ran
• Wang Xian

Classifications

• H04N7/01

  Conversion of standards {, e.g. involving analogue television standards or digital television standards processed at pixel level} · CPC title

• G06T2207/30204

  Marker · CPC title

• G06T2207/20221

  Image fusion; Image merging · CPC title

• G06T2207/10024

  Color image · CPC title

• G06T2207/10016

  Video; Image sequence · CPC title