Image display processing method and device, display device and non-volatile storage medium

Patent metadata

Field	Value
Publication number	US-10872558-B2
Application number	US-201916410452-A
Country	US
Kind code	B2
Filing date	May 13, 2019
Priority date	May 18, 2018
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit, and the backlight unit includes a plurality of display backlight blocks and is configured to be driven by a local dimming mode. The image display processing method includes: obtaining a peak driving threshold of an (s−1)-th frame of image based on respective backlight values of the plurality of backlight blocks of the (s−1)-th frame of image after a first local dimming process is performed on the (s−1)-th frame of image; obtaining respective adjusted backlight values of the plurality of backlight blocks of the s-th frame of image; and displaying the s-th frame of image by using the respective adjusted backlight values of the plurality of backlight blocks of the s-th frame of image.

First claim

What is claimed is:

1. An image display processing method for a display device, wherein the display device comprises a backlight unit, the backlight unit comprises a plurality of backlight blocks and is configured to be driven by a local dimming mode, and the image display processing method comprises:
obtaining a peak driving threshold of an (s-1)-th frame of image based on respective backlight values of the plurality of backlight blocks of the (s-1)-th frame of image after a first local dimming process is performed on the (s-1)-th frame of image;
acquiring respective initial backlight values of the plurality of backlight blocks of an s-th frame of image, and performing a peak driving process on the respective initial backlight values of the plurality of backlight blocks of the s-th frame of image based on the peak driving threshold of the (s-1)-th frame of image, so as to obtain respective adjusted backlight values of the plurality of backlight blocks of the s-th frame of image; and
displaying the s-th frame of image by using the respective adjusted backlight values of the plurality of backlight blocks of the s-th frame of image, wherein s is an integer greater than 1;
the method further comprises:
acquiring a maximum backlight value of the plurality of backlight blocks of the (s-1)-th frame of image;
judging whether the maximum backlight value of the plurality of backlight blocks of the (s-1)-th frame of image is greater than or equal to a preset threshold; and
judging whether a total backlight power consumption of the (s-1)-th frame of image is less than a conventional backlight power consumption,
wherein in a case where the maximum backlight values of the respective backlight blocks of the (s-1)-th frame of image is great than or equal to the preset threshold and the total backlight power consumption of the (s-1)-th frame of image is less than the conventional backlight power consumption, obtaining the peak driving threshold of the (s-1)-th frame of image based on the backlight values of the respective backlight blocks of the (s-1)-th frame of image after the first local dimming process is performed on the (s-1)-th frame of image is performed, and otherwise, the peak driving process on the respective initial backlight values of the plurality of backlight blocks of the s-th frame of image is not performed.

2. The image display processing method according to claim 1 , wherein obtaining the peak driving threshold of the (s-1)-th frame of image based on the respective backlight values of the plurality of backlight blocks of the (s-1)-th frame of image after the first local dimming process is performed on the (s-1)-th frame of image comprises:
acquiring a backlight power consumption margin of the (s-1)-th frame of image based on the respective backlight values of the plurality of backlight blocks of the (s-1)-th frame of image after the first local dimming process is performed on the (s-1)-th frame of image; and
acquiring the peak driving threshold of the (s-1)-th frame of image based on the backlight power consumption margin of the (s-1)-th frame of image.

3. The image display processing method according to claim 2 , wherein acquiring the backlight power consumption margin of the (s-1)-th frame of image based on the respective backlight values of the plurality of backlight blocks of the (s-1)-th frame of image after the first local dimming process is performed on the (s-1)-th frame of image comprises:
acquiring a total backlight power consumption of the (s-1)-th frame of image based on the respective backlight values of the plurality of backlight blocks of the (s-1)-th frame of image after the first local dimming process is performed on the (s-1)-th frame of image.

4. The image display processing method according to claim 3 , wherein acquiring the backlight power consumption margin of the (s-1)-th frame of image based on the respective backlight values of the plurality of backlight blocks of the (s-1)-th frame of image after the first local dimming process is performed on the (s-1)-th frame of image further comprises:
acquiring the backlight power consumption margin of the (s-1)-th frame of image based on the total backlight power consumption of the (s-1)-th frame of image and the conventional backlight power consumption of the backlight unit.

5. The image display processing method according to claim 2 , wherein acquiring the peak driving threshold of the (s-1)-th frame of image based on the backlight power consumption margin of the (s-1)-th frame of image comprises:
arranging the respective backlight values of the plurality of backlight blocks of the (s-1)-th frame of image in an ascending order to obtain a first sequence, and
acquiring the peak driving threshold of the (s-1)-th frame of image according to a following formula:

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Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Ji Zhihua
• Shi Tiankuo
• Sun Yilang
• Zhang Xiaomang
• Xi Yanhui
• Shi Lingyun
• Li Wenyu

Classifications

• G09G2320/0646

  Modulation of illumination source brightness and image signal correlated to each other · CPC title

• G09G2320/0626

  for control of overall brightness · CPC title

• G09G2310/0264

  Details of driving circuits · CPC title

• G09G3/32 Primary

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• G09G3/3413 Primary

  Details of control of colour illumination sources · CPC title