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Liquid crystal display

A liquid crystal display and liquid crystal display panel technology, which is applied in the directions of instruments, transistors, optics, etc., can solve problems such as visual discomfort, and achieve the effects of visual comfort, manufacturing cost saving, and easy manufacturing.

Inactive Publication Date: 2008-01-16
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned problem of visual discomfort when observing the display screen under different external environment brightness of the above-mentioned liquid crystal display, it is necessary to provide a liquid crystal display that can automatically adjust the brightness of the backlight

Method used

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Embodiment Construction

[0018] Please refer to FIG. 2 , which is a schematic diagram of a liquid crystal display in a preferred embodiment of the present invention. The LCD 200 includes a drive controller 210, a power supply 250, a data driver 220 connected to the drive controller 210 and the power supply 250, a scan driver 230 connected to the drive controller 210 and the power supply 250, an integrated The brightness control circuit 231 of the scan driver 230 , a liquid crystal display panel 240 , a photosensitive device 241 and a backlight circuit 270 connected to the power supply 250 . The photosensitive device 241 is disposed on the liquid crystal display panel 240 , it senses the signal of external light, and transmits the sensed signal to the brightness control circuit 231 . The brightness control circuit 231 receives the signal from the photosensitive device 241, detects the brightness of the external light, and controls the backlight circuit 270 according to the detection result.

[0019] P...

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PUM

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Abstract

The invention relates to a liquid crystal display device which comprises a liquid crystal display panel, a light sensor, a brightness controlling circuit and a backlight circuit; wherein the liquid crystal panel comprises a thin film transistor array base board with a display area and a non-display area; a thin film transistor array forms within the display area; the light sensor is integrated in the non-display area of the thin film transistor array base board; the light sensor can sense the light of outer world and transforms light signals into electric signals; the brightness controlling circuit can receive the electric signals of the light sensor and transforms the electric signals into controlling signals; the backlight circuit can receive the controlling signals so as to regulate the backlight brightness. The liquid crystal display device can automatically regulate the backlight brightness.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display capable of automatically adjusting brightness. Background technique [0002] At present, liquid crystal displays have gradually replaced traditional cathode ray tube (Cathode Ray Tube, CRT) displays used in calculators, and because liquid crystal displays are light, thin, and small, they are very suitable for use in desktop computers, Laptop computers, personal digital assistants (Personal Digital Assistant, PDA), portable phones, televisions and a variety of office automation and audio-visual equipment. [0003] The operating environment of LCD monitors will change with certain conditions, such as different locations, the intensity of ambient light, and light switches. Make corresponding adjustments to the display brightness to obtain the most comfortable visual experience. [0004] Please refer to FIG. 1 , which is a schematic diagram of a liquid crystal di...

Claims

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Application Information

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IPC IPC(8): G02F1/136H01L29/786G02F1/1335
Inventor 吴天一邰明波
Owner INNOCOM TECH SHENZHEN