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Dynamic backlight adjustment method, system and television

A technology of backlight adjustment and dynamic backlight, which is applied in the direction of TV, color TV, color TV parts, etc. It can solve the problems of unreachable display effect and inflexible adjustment, so as to improve user experience, flexible adjustment method and good viewing effect Effect

Active Publication Date: 2012-08-22
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a dynamic backlight adjustment method, aiming to solve the problems in the prior art that the adjustment and control of the backlight of the screen through the average brightness of the screen is not flexible enough, and the best display effect cannot be achieved.

Method used

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  • Dynamic backlight adjustment method, system and television
  • Dynamic backlight adjustment method, system and television
  • Dynamic backlight adjustment method, system and television

Examples

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Embodiment 1

[0035] figure 1 It shows a flow chart of the implementation of the dynamic backlight adjustment method provided by Embodiment 1 of the present invention, and the details are as follows:

[0036] In S101, the video data of the current playing picture is obtained;

[0037] In S102, calculate the backlight adjustment value corresponding to the video data according to the brightness histogram, the brightness histogram divides the brightness data of the video signal into M brightness levels, and each brightness level corresponds to a brightness data interval , and corresponds to a weight coefficient, where M is an integer;

[0038] In this embodiment, the brightness histogram describes the corresponding relationship between the brightness level of the video signal and the weight coefficient, wherein each brightness level corresponds to a brightness interval, and in the actual backlight control process, the video with a smaller brightness level can be The data corresponds to a lar...

Embodiment 2

[0042] image 3 A flow chart showing the implementation of the dynamic backlight adjustment method provided by Embodiment 2 of the present invention is described in detail as follows:

[0043] In S301, obtain the video data of the current playing picture;

[0044] In S302, according to the number of pixels of the video data contained in each brightness level of the brightness histogram and the weight coefficient corresponding to the brightness level, calculate the average weight coefficient of the pixel points of the video data, the brightness The histogram divides the brightness data of the video signal into M brightness levels, and each brightness level corresponds to a brightness data interval and corresponds to a weight coefficient;

[0045] In this embodiment, optionally, S302 may specifically calculate the average weight coefficient of video data pixels in the following manner:

[0046] 1. Multiply and sum the number of pixels of the video data contained in each bright...

Embodiment 3

[0060] Figure 4 It shows the structural diagram of the dynamic backlight adjustment system provided by the third embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown. The device can be a software unit or hardware built in the liquid crystal electronic equipment. unit or a combination of hard and soft units, for example, a television.

[0061] The dynamic backlight adjustment system includes: a video data acquisition unit 41 , a backlight adjustment value calculation unit 42 and a backlight adjustment unit 43 .

[0062] A video data acquisition unit 41, configured to acquire the video data of the current playing picture;

[0063] The backlight adjustment value calculation unit 42 is used to calculate the backlight adjustment value corresponding to the video data according to the brightness histogram, the brightness histogram divides the brightness data of the video signal into M br...

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Abstract

The invention is applicable to the technical field of liquid crystal display, and provides a dynamic backlight adjustment method, system, and television. The method comprises the following steps of: obtaining video data of the current playback screen; calculating a backlight adjustment value corresponding to the video data according to a brightness histogram for dividing the brightness data of video signals into M brightness levels, wherein each brightness level corresponds to an interval of brightness data and a weight coefficient; and adjusting the backlight value of the current playback screen according to the backlight adjustment value. Through the method, different brightness of the playback screen can be adjusted by using different weight coefficients, especially, the playback screen with the same brightness average value and different brightness histogram distribution can be adjusted by using different backlight control, and the adjustment method is flexible, so that the better watching effect can be obtained by users, and the user experience is enhanced.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and in particular relates to a dynamic backlight adjustment method, system and television. Background technique [0002] With the development of electronic technology and the popularization of televisions, televisions have entered the era of liquid crystal displays. Most of the liquid crystal screens used in the field of televisions are transmissive, and the brightness of this screen is mainly controlled by the backlight unit. When actually playing video images, the brighter the backlight is, the better the image display effect will be. However, if the backlight is always at the brightest state, the energy-saving effect cannot be achieved. Therefore, it is necessary to dynamically adjust the brightness of the backlight according to the actual playback image. [0003] Most of the existing dynamic backlight adjustment technologies adjust the backlight of the playback screen according...

Claims

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Application Information

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IPC IPC(8): H05B37/02H04N5/64G09G3/36
Inventor 陈虹燕
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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