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

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

Experimental program
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Example Embodiment

[0034] Example one

[0035] figure 1 It shows a flow chart of the implementation of the dynamic backlight adjustment method provided by the first embodiment of the present invention, which is detailed as follows:

[0036] In S101, obtain the video data of the currently played screen;

[0037] In S102, the backlight adjustment value corresponding to the video data is calculated 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 an interval of brightness data. , 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. Each brightness level corresponds to a brightness interval. In the actual backlight control process, the video with a smaller brightness level can be made The data corr...

Example Embodiment

[0041] Example two

[0042] image 3 Shows a flowchart of the implementation of the dynamic backlight adjustment method provided in the second embodiment of the present invention, which is detailed as follows:

[0043] In S301, obtain the video data of the currently playing screen;

[0044] In S302, the average weight coefficient of the video data pixels is calculated 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. The histogram divides the brightness data of the video signal into M brightness levels, and each brightness level corresponds to an interval of brightness data 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 included in each brightness ...

Example Embodiment

[0059] Example three

[0060] Figure 4 Shows the structural diagram of the dynamic backlight adjustment system provided in the third embodiment of the present invention. For ease of description, only the parts related to the embodiment of the present invention are shown. The device may be a software unit or hardware built in a liquid crystal electronic device. Unit or a combination of hardware and software, such as a TV.

[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] The video data obtaining unit 41 is configured to obtain video data of the currently played screen;

[0063] The backlight adjustment value calculation unit 42 is configured 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 brightness level...

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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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