Vertical orientation mode liquid crystal display device
A technology of liquid crystal display device and vertical alignment mode, which is applied in the directions of optics, instruments, electrical components, etc., can solve the problems of slow movement of liquid crystal, slow response speed, slow increase of transmittance, etc., and achieve the effect of fast control of response time
Inactive Publication Date: 2004-02-25
HYDIS TECH CO LTD
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Problems solved by technology
[0013] However, although the vertical alignment liquid crystal display device suitable for the above-mentioned zigzag liquid crystal driving electrodes improves the response speed, no electric field is generated in the part without the electrodes, so that the liquid crystal moves slowly, and the response speed is slow. Problems of image quality degradation caused by disclination lines
[0014] Figure 4 is simulated image 3 The schematic diagram of the cross-section of the line IV-IV' of , from which it can be seen that when a voltage is applied, the increase in the initial transmittance is slow in the part without electrodes
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[0029] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
[0030] First, although not shown in the figure, the liquid crystal display device of the vertical alignment mode of the present invention has the following structure: the lower substrate and the upper substrate of the liquid crystal driving electrodes having ITO material, that is, each pixel electrode and the opposite electrode, are sandwiched by a dielectric constant. In the case of a liquid crystal layer composed of a plurality of liquid crystals with negative anisotropy, a vertical alignment film is sandwiched between the lower substrate and the liquid crystal layer and between the upper substrate and the liquid crystal layer, and the polarization axes are mutually Polarizing plates are respectively attached to the back surfaces of the opposing surfaces of the respective substrates crosswise.
[0031] In the vertical alignment mode liquid crystal ...
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Abstract
The liquid crystal display device in the vertical alignment mode is characterized in that it comprises; a lower and upper substrates oppositely arranged with a prescribed distance apart; a liquid crystal layer interposed between the upper and lower substrates and composed of a liquid crystal whose dielectric constant anisotropy is negative; a resin layer which is applied on the inner face of the lower substrate in a manner covering a thin film transistor and which is formed with projections of centipedes patterns on the surface; a pixel electrode formed on the projections in a manner arranged on the entire pixel areas; a relative electrode formed on the inner face of the upper substrate; a vertical alignment film each interposed between the pixel electrode and the liquid crystal layer and between the relative electrode and the liquid crystal layer; and a polarizing plate installed in the manner that the polarizing axis of each outer face of the upper and lower substrates cross each other.
Description
technical field [0001] The present invention relates to a liquid crystal display device, and more specifically, to a vertical alignment mode liquid crystal display device capable of high-speed response. Background technique [0002] As is well known, in order to improve the low viewing angle and response speed characteristics of a TN (Twist Nematic: twisted nematic) mode liquid crystal display device, a vertical alignment mode liquid crystal display device has been proposed. [0003] Although not shown, such a vertical alignment mode liquid crystal display device has a structure in which a liquid crystal layer composed of a liquid crystal having a negative anisotropy of a dielectric constant is inserted between upper and lower substrates respectively having liquid crystal driving electrodes. A vertical alignment film is provided on each of the opposing surfaces of the upper and lower substrates, and then polarizing plates are attached to the respective back surfaces of the o...
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IPC IPC(8): G02F1/1343G02F1/1333G02F1/1337G02F1/139
CPCG02F1/133707G02F2001/133776G02F1/1393G02F1/133776G02F1/1343
Inventor马旌祜洪承湖
OwnerHYDIS TECH CO LTD