LCD device removing ghost

A liquid crystal display and source driver technology, applied in static indicators, instruments, nonlinear optics, etc., can solve problems such as residue, increase system design complexity, and afterimage

Inactive Publication Date: 2008-05-21
AU OPTRONICS CORP
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  • Abstract
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Problems solved by technology

[0003] However, when the liquid crystal display is turned off, because the leakage current of the transistor is very small, the charge of the previous display screen sometimes remains in the liquid crystal capacitor of the liquid crystal display panel due to insufficient discharge, so there will be image sticking.
In order to avoid the problem of image sticking, the prior art (such as U.S.

Method used

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  • LCD device removing ghost
  • LCD device removing ghost
  • LCD device removing ghost

Examples

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[0014] Please refer to FIG. 1. FIG. 1 is a functional block diagram of the liquid crystal display of the present invention. The liquid crystal display 10 includes a power supply 12, a timing controller 14, a plurality of source drivers 16, a plurality of gate drivers 18, a first voltage generator 25, a second voltage generator 27 and a liquid crystal display panel 20. The liquid crystal display panel 20 includes a plurality of pixel units 28. The power supply 12 is used to supply the operating voltage Vsup required by all the circuits in the liquid crystal display 10 including the timing controller 14, the multiple source drivers 16, and the multiple gate drivers 18. To make the drawing clearer, only the connection relationship between the power supply 12 and the multiple source drivers 16 is shown in FIG. 1. When the clock signal generated by the timing controller 14 is transmitted to the plurality of gate drivers 18, the plurality of gate drivers 18 will generate scan signals an...

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Abstract

The present invention discloses a liquid crystal display for eliminating remnant shadows, which comprises a source cathode driver, a grid driver and a plurality of pixel units. Each pixel unit comprises a switch unit, a pixel electrode, a first electrode, a second electrode, a liquid crystal capacitor and a storage capacitor. The switch unit is used to communicate a pixel data voltage when receiving a driving signal voltage. The first electrode is used to provide a first signal voltage. The second electrode is used to provide a second signal voltage. The first pole of the liquid crystal display is electrically connected with the first electrode; a second pole is electrically connected with the pixel electrode; so the liquid crystal molecules in the liquid crystal display can be driven according to the pixel data voltage and the first signal voltage. The first pole of the storage capacitor is connected with the pixel electrode; the second pole is electrically connected with the second electrode; wherein, the quasi bit of the second signal voltage is bigger than the quasi bit of the first signal voltage.

Description

【Technical field】 [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display capable of improving residual image after shutdown. 【Background technique】 [0002] Displays with advanced functions have gradually become an important feature of today's consumer electronics products. Liquid crystal displays have gradually become widely used in various electronic devices such as mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or notebook computer screens. high resolution color screen monitor. [0003] However, when the liquid crystal display is turned off, because the leakage current of the transistor is very small, the charge of the previous display screen sometimes remains in the liquid crystal capacitor of the liquid crystal display panel due to insufficient discharge, so there will be image sticking. . In order to avoid the problem of image sticking, the prior art (such as U.S. Patent No. 6,476,590)...

Claims

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Application Information

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IPC IPC(8): G02F1/1362G09G3/36
Inventor 徐兆庆廖一遂
Owner AU OPTRONICS CORP
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