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Brightness control method and system for display device

A technology for display device and brightness control, which is applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of unrealistic visual experience and achieve realistic visual experience and realistic display effect

Active Publication Date: 2016-07-20
TCL CORPORATION
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a brightness control method

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  • Brightness control method and system for display device
  • Brightness control method and system for display device

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[0041] The present invention provides a brightness control method and system for a display device. In order to make the objectives, technical solutions, and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0042] See figure 1 , figure 1 It is a flowchart of a preferred embodiment of a method for controlling brightness of a display device provided by the present invention. As shown in the figure, the method includes the following steps:

[0043] Step S100, a plurality of LED lights arranged in a matrix for backlighting are added to the display device in advance, each LED light provides backlighting for the corresponding display area on the display device, and each of the video is captured when the video is r...

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Abstract

The present invention discloses a brightness control method and a system for a display device. According to the technical scheme of the invention, a plurality of LED lamps for backlight are additionally arranged on the display device in advance and are distributed in a matrix. Meanwhile, an actual scene brightness value corresponding to each pixel point in each image frame of a video during the video recording process is acquired. According to a preset first brightness threshold, the threshold treatment is conducted on the actual scene brightness value corresponding to the pixel point in each image frame of the video. Meanwhile, a corresponding additional brightness value is calculated based on a preset second brightness threshold. After that, the average value of the additional brightness values of all pixel points in a display region of each image frame corresponding to each LED lamp is calculated, and the ratio of the difference between the average value and the first brightness threshold to the difference between the average value and the second brightness threshold is calculated. According to the obtained ratio, the brightness of the corresponding LED lamp in the display region is correspondingly adjusted, so that viewers feel more realistic in visual experience. Therefore, televisions, movies and other display devices have the high brightness display function. Meanwhile, the display effect is more realistic.

Description

technical field [0001] The present invention relates to the technical field of brightness control of a display device, in particular to a brightness control method and system of a display device. Background technique [0002] With the continuous development and popularization of display products, more and more displays appear in our daily life, such as flat-panel displays such as mobile phones, tablet computers, etc., as well as TVs and theater systems. At present, the display system only has the traditional 3-primary-color grayscale display, and the brightness performance is relatively general, and the brightness is often displayed within a small range. ~255, however, the brightness range of the actual scene brightness value corresponding to this video is very large, which makes the video picture effect not realistic, and the visual experience is not realistic. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004]...

Claims

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Application Information

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IPC IPC(8): G09G5/10
Inventor 王幼琳
Owner TCL CORPORATION
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