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LCD and method for improving its ghost phenomenon

A liquid crystal display and afterimage technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of shortened working life, increased gate drive IC load, and extended gate drive IC working time

Inactive Publication Date: 2006-10-11
CHUNGHWA PICTURE TUBES LTD
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Problems solved by technology

[0007] However, due to the known method, it is necessary to make the gate drive IC at timing t F3 Remains on for a short period of time thereafter to perform XAO functions
In this way, the operating time of the gate drive IC will be extended, thereby increasing the load on the gate drive IC and shortening its operating life

Method used

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  • LCD and method for improving its ghost phenomenon
  • LCD and method for improving its ghost phenomenon
  • LCD and method for improving its ghost phenomenon

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Embodiment Construction

[0058] image 3 Shown is a schematic circuit block diagram of a liquid crystal display in an embodiment of the present invention. Please refer to image 3 , the liquid crystal display 300 is mainly composed of a pixel array 310 , a gate driving unit 320 , a power supply unit 330 , a control circuit 340 and a signal switcher 370 . Wherein, the pixel array 310 is formed by arranging a plurality of pixel structures 312, and generally speaking, the pixel structure 312 is mainly composed of an active element 314, a scan line (scan line) 316, a data line (data line) 318 and a pixel electrode (not drawn ), and the active element 314 is, for example, a thin film transistor coupled to the scan line 316 and the data line 318 .

[0059] As mentioned above, the power supply unit 330 is coupled to the gate driving unit 320 for providing the first driving voltage V GH and the second driving voltage V, and the gate driving unit 320 is coupled to the pixel array 310 for driving the pixel s...

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Abstract

A method of improving the afterimage phenomena for LCD is suitable for improving the afterimage phenomena produced after the LCD is shut off. The LCD consists of grid driver element, control circuit and pixel array, in which the said control circuit and grid driver element individually are coupled on the pixel array, moreover, when the LCD is shut on, the control circuit is shut off. The method activates the control circuit to get the control circuit to activate the pixel array to discharge when the LCD is shut off, then eliminates the charges remained in the pixel array to avoid the afterimage phenomena when LCD is shut off.

Description

technical field [0001] The invention relates to a display device and a method for improving the image sticking phenomenon of the display device, and in particular to a liquid crystal display and a method for improving the image sticking phenomenon thereof. Background technique [0002] The rapid progress of the multimedia society is mostly due to the rapid progress of semiconductor components and display devices. As far as display devices are concerned, thin film transistor liquid crystal displays (Thin Film Transistor Liquid Crystal Display, TFT-LCD) with superior characteristics such as high image quality, good space utilization efficiency, low power consumption, and no radiation have gradually become the mainstream of the market. [0003] figure 1 Shown is a three-dimensional exploded view of a conventional TFT LCD, while figure 2 then figure 1 The driving timing diagram of the TFT LCD. Please also refer to figure 1 and figure 2 , the TFT liquid crystal display in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G5/00G02F1/133
Inventor 赖意强王明宗
Owner CHUNGHWA PICTURE TUBES LTD
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