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LCD panel of thin-film transistor

A technology of thin film transistor and liquid crystal display, which is used in static indicators, electric solid state devices, semiconductor devices and other directions to achieve the effect of improving the brightness of liquid crystal display and reducing the voltage difference

Active Publication Date: 2011-02-16
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In an environment that is highly dependent on ambient brightness, it is necessary to change the display brightness of TFT LCD accordingly, that is, when the ambient light is relatively strong, LCD display is required When the brightness is strong and the ambient light is relatively weak, the liquid crystal display brightness needs to be weak, but the brightness of the TFT LCD display in the prior art cannot be adjusted according to the change of the ambient light

Method used

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  • LCD panel of thin-film transistor

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Embodiment Construction

[0017] figure 1 Shown is a schematic structural diagram of the display brightness control device in the thin film transistor liquid crystal display panel of the present invention. The specific structure of the device is as follows: the anode of the first diode 11 is connected to the data line output end of the data line driving circuit of the liquid crystal display panel, and the first The cathode of a diode 11 is connected to one of the source or drain of the first thin film transistor 13 and the data line input end of the LCD panel array substrate, and the cathode of the second diode 12 is connected to the LCD panel data line driving circuit The output terminal of the middle data line is connected, the anode of the second diode 12 is connected to one of the source or drain of the second thin film transistor 14 and the input terminal of the data line of the LCD panel array substrate, and the source of the first thin film transistor 13 Or the other one of the drains is connec...

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Abstract

The invention relates to a thin film transistor liquid crystal display panel. The thin film transistor liquid crystal display panel comprises a data line drive circuit, and an array basal plate forming a panel display area. A display brightness control device capable of changing the liquid crystal display brightness according to the brightness of the environment is connected in series between a data line output end of the data line drive circuit and a data line input end of the array basal plate. The display brightness control device comprises two thin film transistors which are sedimentated outside the display area of the array basal plate of the liquid crystal display, and two diodes which are integrated in the data line drive circuit. The liquid crystal display panel can control the liquid crystal display brightness according to the brightness of the environment, thereby allowing the liquid crystal display brightness to change with the brightness of the environment.

Description

Technical field [0001] The invention involves a LCD display panel, especially a thin film crystal liquid crystal display panel that can adjust the brightness according to the brightness of the ambient light. Background technique [0002] The Thin Film Transistor (TFT) liquidCrystal Display (LCD) LCD is clamped by the array substrate and color film substrate. There are color resin and public electrodes on the color film substrate.The electrode, when the voltage is applied between the public electrode and the pixel electrode, the liquid crystal lies. For the LCD of Twisted Nematic (TN) mode, the smaller the voltage difference between the liquid crystal sides, the greater the liquid crystal brightness. [0003] In an environment with strong environmental brightness, the display brightness of TFT LCD needs to make corresponding changes, that is, when the environmental light is strong, the liquid crystal display is strong and the environmental light needs to be weak.In the existing t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362G02F1/133G09G3/34G09G3/36H01L27/12H05B37/02
Inventor 彭志龙
Owner K TRONICS (SUZHOU) TECH CO LTD
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