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Liquid crystal display of OCB mode and driving method of the same

A technology of liquid crystal display and liquid crystal layer, which can be used in instruments, nonlinear optics, optics, etc., and can solve the problems of wavelength dispersion of liquid crystal displays and low contrast of displays.

Inactive Publication Date: 2005-09-14
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, OCB mode LCDs suffer from low contrast
This is because the OCB mode liquid crystal display has higher brightness in the black state than other liquid crystal display modes, and the high brightness in the black state is due to the difficulty of completely compensating the wavelength dispersion of the liquid crystal display with the compensation film.

Method used

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  • Liquid crystal display of OCB mode and driving method of the same
  • Liquid crystal display of OCB mode and driving method of the same
  • Liquid crystal display of OCB mode and driving method of the same

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Embodiment Construction

[0024] In order to enable those skilled in the art to implement the present invention, the embodiments of the present invention will now be described in detail with reference to the accompanying drawings. However, the present invention can be expressed in different forms, and it is not limited to the embodiments described here.

[0025] In the drawings, the thickness and area of ​​each layer are enlarged for clarity. The same symbols are attached to the same elements throughout the specification. It should be understood that when elements such as layers, films, regions, or substrates are referred to as being "on" other parts, it means that they are directly located between other elements. Or there may be other components in between. On the contrary, when an element is referred to as being "directly" on another part, it means that there is no other element in between.

[0026] Hereinafter, a liquid crystal display according to an embodiment of the present invention will be describe...

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Abstract

A liquid crystal display includes a TFT array panel, a color filter panel, a liquid crystal layer aligned in OCB mode, two compensation films disposed on outer surfaces of the TFT panel and the color filter panel, respectively, and two polarization films disposed on outer surfaces of the two compensation films, respectively. The slow axes of TAC films, which are supports of the two compensation films, make an angle of 0-15 degrees with the polarization axes of the two polarization films.

Description

Technical field [0001] The invention relates to an OCB (optical compensation bend) mode liquid crystal display. Background technique [0002] A typical liquid crystal display (LCD) includes an upper panel provided with common electrodes and color filters, a lower panel provided with a plurality of thin film transistors (TFT) and a plurality of pixel electrodes, etc., and a liquid crystal ( LC) Material. Different voltages are applied between the pixel electrode and the common electrode to generate an electric field that can change the arrangement of liquid crystal molecules, thereby controlling the light transmittance to display an image. [0003] The OCB mode liquid crystal display in the liquid crystal display has the advantages of wide viewing angle and fast response, and its application is being actively studied recently. [0004] However, the OCB mode liquid crystal display has the problem of low contrast. This is because the OCB mode liquid crystal display has higher bright...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/13363G02F1/139
CPCG02F1/1395G02F2413/10G02F1/1335
Inventor 李昶勋仓学璇
Owner SAMSUNG ELECTRONICS CO LTD