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Region backlight adjustment device and adjustment method thereof

A backlight adjustment and area technology, applied in the field of electronic information, can solve the problems of screen flicker, inability to realize manual backlight adjustment, and inability to adjust regional backlight brightness.

Active Publication Date: 2016-05-04
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the backlight adjustment of traditional LED TVs cannot adjust the backlight brightness of the area according to the brightness and darkness of the image. Even if some screens have the area backlight adjustment function, the adjustment method that combines manual backlight adjustment and area backlight adjustment cannot be realized. screen flickering problem

Method used

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  • Region backlight adjustment device and adjustment method thereof
  • Region backlight adjustment device and adjustment method thereof
  • Region backlight adjustment device and adjustment method thereof

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Embodiment Construction

[0031] In view of the fact that the traditional LED screen in the prior art cannot realize the adjustment method combining manual backlight adjustment and regional backlight adjustment, and there will be screen flicker and other shortcomings when adjusting the regional backlight, the purpose of the present invention is to provide a regional backlight adjustment device and its The adjustment method can combine manual backlight adjustment and regional backlight adjustment, dynamically adjust the regional backlight brightness according to the image brightness and the whole screen brightness, and improve the contrast effect of the screen.

[0032] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present inv...

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Abstract

The present invention discloses a region backlight adjustment device and an adjustment method thereof. The region backlight adjustment device comprises an image information module, a manual operation backlight adjustment module, a control module and a backlight driving module. The image information module is configured to output region backlight signals and field sync signals to the control module, and the manual operation backlight adjustment module is configured to output manual operation backlight adjustment signals to the control module; the control module is configured to read the region backlight signals and the manual backlight adjustment signals according to the field sync signals, and calculate the duty ratio of region brightness control signals according to the region backlight signals and the manual operation backlight adjustment signals to output the duty ratio to the backlight driving module; and the backlight driving module is configured to adjust the region backlight brightness according to the duty ratio of region brightness control signals, so that the manual backlight adjustment and the region backlight adjustment are combined, and the region backlight brightness is dynamically adjusted according to the image brightness and the whole screen brightness, therefore the contrast effect of the screen is improved.

Description

technical field [0001] The invention relates to the technical field of electronic information, in particular to an area backlight adjustment device and an adjustment method thereof. Background technique [0002] Area backlight adjustment is to calculate the brightness information of the area according to the light and dark information of the image, so as to control the brightness of a certain area. Manual backlight adjustment is the function of manually adjusting the backlight in the TV menu. This adjustment is to realize the brightness adjustment of the entire screen. It is user personalized adjustment. At present, the backlight adjustment of traditional LED TVs cannot adjust the backlight brightness of the area according to the brightness and darkness of the image. Even if some screens have the area backlight adjustment function, the adjustment method that combines manual backlight adjustment and area backlight adjustment cannot be realized. There will be a problem of scr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/3413
Inventor 赵新科
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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