Display content updating method and device, and medium

Patent metadata

Field	Value
Publication number	US-12444380-B2
Application number	US-202418678947-A
Country	US
Kind code	B2
Filing date	May 30, 2024
Priority date	Sep 22, 2023
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

Provided are a display content updating method and apparatus, a device, and a medium, relating to the field of screen display technologies. The display content updating method includes: acquiring a color region included in a multi-color image and a color type corresponding to the color region; converting the multi-color image into multiple pieces of refresh image data and refresh instructions corresponding to the multiple pieces of refresh image data according to positions and color types of color regions in the multi-color image, where different refresh instructions are executed asynchronously; and sending the refresh instructions and the multiple pieces of refresh image data to a controller of an electronic paper screen so that the controller refreshes the display content of the electronic paper screen based on the refresh instructions and the corresponding multiple pieces of refresh image data.

First claim

What is claimed is:

1. A display content updating method, comprising:
acquiring a color region comprised in a multi-color image and a color type corresponding to the color region;
acquiring a first color region whose color type belongs to a multi-color coincident refresh and determining a remaining color region as a second color region;
acquiring a first refresh color and a second refresh color of the first color region, wherein the first refresh color is refreshed before the second refresh color, and the first refresh color and the second refresh color are used for performing a coincident refresh on a same color region so that a color of the same color region is refreshed to obtain a target color;
determining the first color region and the second color region as a first color group and updating the color type of the first color region in the first color group to the first refresh color;
dividing the first color region to obtain at least one second color group and updating the color type of the first color region in a second color group of the at least one second color group to the second refresh color;
determining, according to color types comprised in the first color group, color regions corresponding to the color types comprised in the first color group, color types comprised in the second color group, and color regions corresponding to the color types comprised in the second color group, plurality of pieces of refresh image data and refresh instructions corresponding to the plurality of pieces of refresh image data; and
sending the plurality of pieces of refresh image data and the refresh instructions to a controller of an electronic paper screen so that the controller refreshes display content of the electronic paper screen based on the corresponding plurality of pieces of refresh image data and the refresh instructions.

2. The display content updating method of claim 1 , wherein determining, according to color types comprised in the first color group, color regions corresponding to the color types comprised in the first color group, color types comprised in the second color group, and color regions corresponding to the color types comprised in the second color group, plurality of pieces of refresh image data and refresh instructions corresponding to the plurality of pieces of refresh image data comprises:
determining the color types comprised in the first color group and the color regions corresponding to the color types comprised in the first color group as first refresh image data and a first refresh instruction corresponding to the first refresh image data; and
determining the color types comprised in the second color group and the color regions corresponding to the color types comprised in the second color group as second refresh image data and a second refresh instruction corresponding to the second refresh image data, wherein the first refresh instruction is executed before the second refresh instruction.

3. The display content updating method of claim 2 , wherein a drive voltage corresponding to the first refresh color is less than a drive voltage corresponding to the second refresh color.

4. The display content updating method of claim 2 , wherein a polarity of a drive voltage corresponding to the first refresh color is opposite to a polarity of a drive voltage corresponding to the second refresh color.

5. The display content updating method of claim 3 , wherein a polarity of a drive voltage corresponding to the first refresh color is opposite to a polarity of a drive voltage corresponding to the second refresh color.

6. The display content updating method of claim 2 , wherein the first refresh instruction is a global refresh instruction, the second refresh instruction is a partial refresh instruction, the first refresh instruction is used for the controller to refresh the display content of the electronic paper screen through a charge balance stage, an activation stage, and a color rendering stage, and the second refresh instruction is used for the controller to refresh the display content of the electronic paper screen through the charge balance stage and the color rendering stage.

7. The display content updating method of claim 5 , wherein the first refresh instruction is a global refresh instruction, the second refresh instruction is a partial refresh instruction, the first refresh instruction is used for the controller to refresh the display content of the electronic paper screen through a charge balance stage, an activation stage, and a color rendering stage, and the second refresh instruction is used for the controller to refresh the display content of the electronic paper screen through the charge balance stage and the color rendering stage.

8. The display content updating method of claim 1 , wherein in response to a sum of a number of color types corresponding to the first refresh color and a number of color types of the second color region being less than a maximum number of color regions refreshed by a driver integrated circuit (IC) for one time, where the maximum number of the refreshed color regions is determined according to a number of bits of the driver IC, and the number of bits of the driver IC corresponds to the electronic paper screen, determining the first color region and the second color region as the first color group and updating the color type of the first color region in the first color group to the first refresh color comprises:
acquiring color types of colored particles driven by the driver IC and drive voltages corresponding to the colored particles and determining drive voltages corresponding to color types of color regions in the multi-color image;
filtering the first color region to obtain a third color region according to the drive voltages of the color types of the color regions, the first refresh color and the second refresh color of the first color region, and a color type of the second color region and determining a remaining first color region as the second color region; and
determining the third color region and the second color region as the first color group and updating a color type of the third color region in the first color group to the first refresh color;
wherein dividing the first color region to obtain the at least one second color group and updating the color type of the first color region in the second color group of the at least one second color group to the second refresh color comprises:
dividing the third color region to obtain the at least one second color group and updating the color type of the third color region in the second color group of the at least one second color group to the second refresh color.

9. A display content updating device, comprising:
at least one processor; and
a memory communicatively connected to the at least one processor; wherein
the memory stores a computer program executable by the at least one processor to cause the at least one processor to perform:
acquiring a color region comprised in a multi-color image and a color type corresponding to the color region;
acquiring a first color region whose color type belongs to a multi-color coincident refresh and determining a remaining color region as a second color region;
acquiring a first refresh color and a second refresh color of the first color region, wherein the first refresh color is refreshed before the second refresh color, and the first refresh color and the second refresh color are used for performing a coincident refresh on a same color region so that a color of the same color region is refreshed to obtain a target color;
determining the first color region and the second color region as a first color group and updating the color type of the first color region in the first co

Assignees

• Hanshow Technology Co Ltd

Inventors

• Li Yanchen
• Zhao Jianguo
• Hou Shiguo

Classifications

• G09G2340/0435

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

• G09G2320/0686

  with two or more screen areas displaying information with different brightness or colours · CPC title

• G09G2310/0235

  Field-sequential colour display · CPC title

• G09G2380/14

  Electronic books and readers · CPC title

• G09G2310/04

  Partial updating of the display screen · CPC title