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Backlight source luminance control method and device used under wide-screen film display mode

A technology of backlight brightness and display mode, applied in static indicators, instruments, etc., can solve problems such as light leakage, and achieve the effect of improving contrast and eliminating light leakage.

Active Publication Date: 2014-12-24
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a method and device for controlling the brightness of a backlight source in a wide-screen movie display mode, to solve the problem of light leakage in the prior art for controlling the backlight source of a display screen without affecting the image displayed on the display screen question

Method used

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  • Backlight source luminance control method and device used under wide-screen film display mode
  • Backlight source luminance control method and device used under wide-screen film display mode
  • Backlight source luminance control method and device used under wide-screen film display mode

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Embodiment Construction

[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] like figure 2 As shown, the embodiment of the present invention provides a flow chart of a method for controlling the brightness of a backlight source in a wide-screen movie display mode, and the method includes:

[0044] Step 201: When the image to be displayed is displayed on the display screen, determin...

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Abstract

The invention discloses a backlight source luminance control method and device used under a wide-screen film display mode. The method comprises the steps that when an image to be displayed is displayed in a display screen, a backlight partition where a backlight source needs to be turned off in the display screen is determined; the first backlight source luminance value of a backlight partition adjacent to the backlight partition where the backlight source needs to be turned off is determined; the first backlight source luminance value is lowered to obtain the second backlight source luminance value, and when the image to be displayed is displayed through the display screen, the backlight source luminance value of the adjacent backlight partition is set to be the second backlight source luminance value. According to the method, the light leakage phenomenon of the backlight source of the display screen can be controlled, and the image displayed by the display screen cannot be affected.

Description

technical field [0001] The invention relates to the field of backlight source control, in particular to a method and device for controlling the brightness of a backlight source in a wide-screen movie display mode. Background technique [0002] Due to the assembly and fixation of the LCD screen, the frame squeezes the LCD panel, resulting in changes in the arrangement of the four-corner liquid crystal molecules; or the partial unevenness of the display due to the optical film; The decrease in flatness will lead to the light leakage of the liquid crystal when viewing the image content in a black screen or low-brightness scene under weak ambient light viewing conditions, which will damage the image quality. Especially when playing movies with certain ratio formats, such as wide-screen movies, there are black areas in itself; The black area, such as the aspect ratio of the display screen of LCD TV is 16:9, and the aspect ratio of widescreen movie is approximately 21:9, specific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/36
Inventor 杨嘉黄顺明张玉欣
Owner HISENSE VISUAL TECH CO LTD
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