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LCD panel

A liquid crystal display panel and display area technology, which is applied to static indicators, instruments, nonlinear optics, etc., can solve problems such as uneven data line leakage, lower product quality, and uneven picture display, and achieve high product quality and excellent picture quality. show even effect

Active Publication Date: 2019-01-01
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the potentials of the first, second, third, and fourth nodes A', B', C', and D' are in an unknown state, so that the fifth, sixth, seventh, and eighth thin film transistors T5', T6 The voltage difference Vgs between the gate and the source of ', T7', T8' will drift (floating), which will cause uneven leakage on different data lines, make the picture display in the effective display area 100' uneven, and reduce product quality

Method used

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Embodiment Construction

[0036] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0037] see Figure 4 , the present invention provides a liquid crystal display panel, comprising: an effective display area 100 , and an array test circuit 200 electrically connected to the effective display area 100 .

[0038] Specifically, the liquid crystal display panel further includes: a multiplexer 300 electrically connected to the effective display area 100, a fan-out wiring 400 electrically connected to the multiplexer 300, and a The control IC 500 electrically connected to the fan-out wiring 400, the peripheral wiring 600 electrically connected to the control IC 500, the GOA circuit 700 electrically connected to the peripheral wiring 600 and the effective display area 100, and the The control IC 500 is electrically connected to the ...

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Abstract

The present invention provides a liquid crystal display panel. The array test circuit (200) comprises a test control unit including a N type thin film transistor and a P type thin film transistor, wherein one thin film transistor is employed to be the output thin film transistor, and the other thin film transistor is employed to be the voltage stabilization thin film transistor. When the liquid crystal display panel is in the normal display state, the test control signal (ATEN) controls the output thin film transistor to be deactivated and controls the voltage stabilization thin film transistor to be activated so that the voltage difference of the gate and the source of the output thin film transistor is zero. Thus, the leakages on the data lines in the active display area (100) are consistent.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display panel. Background technique [0002] A Liquid Crystal Display (LCD) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or notebook computer screen, etc., occupy a dominant position in the field of flat panel display. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a liquid crystal display panel and a backlight module. The working principle of the liquid crystal display panel is to pour liquid crystal molecules between the thin film transistor array substrate (ThinFilm Transistor Array Substrate, TFT Array Substrate) and the color filter substrate (ColorFilter, CF), and apply a driving voltage on the two substrates to Contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362
CPCG02F1/136259G09G3/006G09G3/3648G09G2310/0297G09G2310/08G09G2330/12G02F1/13452G02F1/13454G09G2300/0426G09G2300/0819G02F1/136254
Inventor 易士娟赵莽
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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