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Method and system for adjusting brightness of LED backlight of liquid crystal display

A technology of LED backlight and liquid crystal display, applied in static indicators, instruments, etc., to avoid vision loss

Inactive Publication Date: 2014-08-27
深圳市万鸿盛塑胶模具有限公司
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for adjusting the brightness of the LED backlight of a liquid crystal display, aiming at solving the problem that the brightness of the backlight of the existing liquid crystal display cannot be adjusted according to different users , causing the user's eyesight to decline during long-term use

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  • Method and system for adjusting brightness of LED backlight of liquid crystal display
  • Method and system for adjusting brightness of LED backlight of liquid crystal display
  • Method and system for adjusting brightness of LED backlight of liquid crystal display

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Embodiment Construction

[0059] 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 and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0060] figure 1 The flow chart of the method for adjusting the brightness of the LCD LED backlight source provided by the embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are listed, and the details are as follows:

[0061] Such as figure 1 As shown, the method for adjusting the brightness of the liquid crystal display LED backlight source provided by the invention comprises the following steps:

[0062] Step S100 , detecting facial feature image information of the user in front of the liquid crys...

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Abstract

The invention belongs to the field of liquid crystal display brightness control and provides a method and system for adjusting brightness of LED backlight of a liquid crystal display. According to the method, at first, facial feature image information of users in front of the liquid crystal display is detected; the detected facial feature image information and preset facial feature image information are compared to obtain similarity; the obtained similarity and a preset similarity threshold value are compared, whether the users in front of the liquid crystal display are preset users is judged according to the compared result, and the LED backlight is controlled to carry out corresponding balance adjustment according to the different users. When the users use the liquid crystal display for a long time, the relative balanced level of the amount of light entering the eyes is always kept, and therefore the problem that due to the fact that the users watch the liquid crystal display for a long time, vision is impaired can be avoided.

Description

technical field [0001] The invention belongs to the field of brightness control of liquid crystal displays, in particular to a method and system for adjusting brightness of LED backlight sources of liquid crystal displays. Background technique [0002] The backlight is a light source located behind the liquid crystal display, and its luminous effect will directly affect the visual effect of the liquid crystal display module. Currently, LCD TVs and computer monitors generally use LED backlight sources. [0003] When working, people will use the computer for a long time. In the process of using the computer, the user needs to watch the LCD screen for a long time. When a certain time limit is reached, the eyes will be tired and need to rest, and the user will squint or blink continuously In order to relieve fatigue, at this time, the amount of light entering the eyes of the liquid crystal display will decrease, and the content on the display will become blurred when the user ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
Inventor 陆俊
Owner 深圳市万鸿盛塑胶模具有限公司
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