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Liquid crystal display apparatus and display lightness regulating method thereof

A liquid crystal display device and brightness adjustment technology, which is applied to measuring devices, photometry, static indicators, etc., can solve the problems of low reliability of display brightness adjustment and low reliability of display brightness, and achieve high reliability and reduce The probability of photoelectric conversion efficiency reduction and the effect of reducing the time to be driven

Inactive Publication Date: 2009-04-15
INNOCOM TECH SHENZHEN +1
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Problems solved by technology

[0004] In order to solve the problem of low reliability in adjusting the display brightness of the prior art liquid crystal display device, it is necessary to provide a liquid crystal display device with high reliability in adjusting the display brightness
[0005] In order to solve the problem of low reliability of the display brightness adjustment of the prior art liquid crystal display device, it is also necessary to provide a display brightness adjustment method of the liquid crystal display device with high reliability

Method used

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  • Liquid crystal display apparatus and display lightness regulating method thereof
  • Liquid crystal display apparatus and display lightness regulating method thereof
  • Liquid crystal display apparatus and display lightness regulating method thereof

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Embodiment Construction

[0015] See figure 1 , Is a schematic diagram of the structure of the first embodiment of the liquid crystal display device of the present invention. The liquid crystal display device 2 includes a photosensitive device 20, a display area 25, a frame 22, a supporting device 26 and a control circuit (not shown). The display area 25 is a rectangular area for displaying pictures. The photosensitive device 20 is adjacent to the display area 25 and is used for sensing the illuminance of ambient light and outputting a light sensing signal. The control circuit outputs the corresponding ambient illuminance according to the light sensing signal output by the photosensitive device 20, and adjusts the display brightness of the display area 25 according to the ambient illuminance. The frame 22 houses the photosensitive device 20, the display area 25 and the control circuit. The supporting device 26 supports the frame 22.

[0016] See figure 2 ,Yes figure 1 An enlarged cross-sectional view of...

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Abstract

The invention relates to an LCD device and a display brightness adjusting method thereof. The LCD device comprises a sensitizing device, a processing unit and a brightness adjusting unit. The sensitizing device comprises at least two sensitizing units; the processing unit correspondingly selects to drive one sensitizing unit according to the ambient light luminance to cause the sensitizing unit to output a sensing signal, and the processing unit correspondingly outputs a brightness adjusting signal according to the sensing signal; and the brightness adjusting unit adjusts the display brightness of the LCD device according to the brightness adjusting signal. The LCD device has higher reliability in the display brightness adjustment.

Description

Technical field [0001] The invention relates to a liquid crystal display device and a display brightness adjustment method thereof. Background technique [0002] Liquid crystal display devices have been widely used in mobile phones, personal digital assistants, notebook computers, desktop computers, TVs and other fields because of their low radiation, light and thin size, and low power consumption. As a display device, the liquid crystal display device's display brightness is a main performance parameter. In order to meet the display brightness requirements of different situations, the brightness of the liquid crystal display device needs to be adjusted. For example, in a dark room, the liquid crystal display device needs to be adjusted to a relatively low display brightness to avoid damage to the viewer's eyes due to excessive brightness. Generally, an amorphous silicon thin film transistor exposed to ambient light can be driven to generate a photocurrent corresponding to the am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G5/10G01J1/42G01J1/44G01J1/04G02F1/133G02F1/1362
Inventor 许福源
Owner INNOCOM TECH SHENZHEN
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