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Local backlight adjustment method and device, virtual reality system

A backlight adjustment and partial technology, applied in the field of virtual reality, can solve problems such as large delay in VR rendering process, achieve the effects of reducing computational complexity, saving processing time, and overcoming delay

Active Publication Date: 2020-10-30
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a local backlight adjustment method and device, and a virtual reality system to solve the problem of large delay in the existing VR rendering process using Local Dimming technology

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  • Local backlight adjustment method and device, virtual reality system
  • Local backlight adjustment method and device, virtual reality system
  • Local backlight adjustment method and device, virtual reality system

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Embodiment Construction

[0048] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0049] Aiming at the problem of large delay in the existing VR rendering process using the Local Dimming technology, the embodiment of the present invention provides a solution for local backlight adjustment. figure 1 It is a flow chart of a local backlight adjustment method in an embodiment of the present invention, such as figure 1 As shown, the local backlight adjustment method in the embodiment of the present invention includes:

[0050] S1. Receive a frame of input image;

[0051] S2. Process t...

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Abstract

The embodiment of the invention provides a local backlight adjusting method and device and a virtual reality system. The local backlight adjusting method comprises the following steps: receiving a frame of input image; processing the input image into a grid image comprising a plurality of anti-distortion image units and a plurality of black image units according to a preset mark template; and obtaining backlight adjustment data of the plurality of anti-distortion image units through backlight calculation, and setting the backlight adjustment data of the plurality of black image units. According to the invention, by introducing the mark template, the anti-distortion image and the black image in the input image are separated by using the mark template, only the anti-distortion image is subjected to backlight calculation during subsequent backlight calculation, and the backlight adjustment data is directly set for the black image, so that the calculation complexity is effectively reduced,the calculation amount is reduced, and the processing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of virtual reality, in particular to a local backlight adjustment method and device, and a virtual reality system. Background technique [0002] Liquid Crystal Displays (LCDs) have been widely used in electronic products such as tablet computers, televisions, and mobile phones. In order to reduce power consumption and improve display image contrast, LCDs introduce a local backlight adjustment (Local Dimming) technology. Studies have shown that direct-type light-emitting diode (Light-Emitting Diode, LED) backlight combined with Local Dimming technology can greatly reduce power consumption, increase the contrast value of the display screen, the number of gray scales, and reduce afterimages. Local Dimming technology processes the input image, adjusts the brightness of each LED of the direct-type backlight according to the brightness of the image, and adjusts the grayscale value of each pixel of the LCD at the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/3406
Inventor 孙玉坤李文宇苗京花鄢名扬李治富范清文何惠东张硕张浩陈丽莉
Owner BOE TECH GRP CO LTD