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Automatic regulating device and automatic regulating method for liquid crystal display luminance

An automatic adjustment device and liquid crystal display technology, which is applied to static indicators, instruments, etc., can solve the problem of high cost of automatic brightness adjustment devices for liquid crystal displays, and achieve the effects of overcoming inaccurate ambient brightness, accurate brightness information, and saving costs

Inactive Publication Date: 2009-09-30
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high cost of the automatic brightness adjustment device of the prior art liquid crystal display, it is necessary to provide a low-cost automatic brightness adjustment device of the liquid crystal display

Method used

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  • Automatic regulating device and automatic regulating method for liquid crystal display luminance
  • Automatic regulating device and automatic regulating method for liquid crystal display luminance
  • Automatic regulating device and automatic regulating method for liquid crystal display luminance

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Embodiment Construction

[0015] see figure 1 , is a circuit block diagram of a preferred embodiment of the automatic brightness adjustment device for liquid crystal displays of the present invention. Such as figure 1 As shown, the device for automatically adjusting brightness of a liquid crystal display includes a camera 100 , a computer 101 and a liquid crystal display 10 . The liquid crystal display 10 includes a signal processing circuit 102 , a backlight control circuit 103 and a backlight unit 104 . The camera 100 is connected to the computer 101 through a universal serial bus (USB) interface. The camera 100 collects images of the surrounding environment in real time. The computer 101 receives and analyzes the image information collected by the camera 100 , and transmits the analyzed adjustment commands and parameters to the signal processing circuit 102 . The signal processing circuit 102 responds to the adjustment command and processes the parameter signal and adjusts the backlight of the b...

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Abstract

The invention provides an automatic regulating device for liquid crystal display luminance, which comprises a liquid crystal display, a camera and a computer, wherein the liquid crystal display comprises a signal processing circuit, a backlight control circuit and a backlight unit; the camera acquires an environmental image and transmits image information to the computer; the computer analyzes luminance information of the image and sends a corresponding control signal; the signal processing circuit receives the control signal and sends a corresponding adjustment signal; and the backlight control circuit receives the adjustment signal and correspondingly adjusts luminance of the backlight unit according to the adjustment signal. The automatic regulating device for the liquid crystal display luminance has low cost, adjusts the liquid crystal display luminance accurately, and has little external interference.

Description

technical field [0001] The invention relates to a liquid crystal display brightness automatic adjustment device and a brightness automatic adjustment method thereof. Background technique [0002] In recent years, liquid crystal display technology has developed rapidly, and liquid crystal displays are also widely used in fields such as mobile communication terminals, entertainment electronic products, and personal computers. [0003] Since the liquid crystal itself cannot emit light, the backlight unit of the liquid crystal display needs to provide a light source. However, since the backlight unit consumes more power, in order to increase battery life or save energy, it is necessary to properly adjust the backlight according to the actual brightness of the display environment, which has become increasingly prominent. [0004] In order to obtain the ambient brightness used by the liquid crystal display, it is necessary to additionally have a light sensor (Light Sensor) for id...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/34
Inventor 赖京州陈佐秋
Owner INNOCOM TECH SHENZHEN
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