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Liquid crystal display device having improved side visibility

A liquid crystal display device, liquid crystal panel technology, applied in static indicators, metal processing, instruments, etc., can solve problems such as image distortion

Inactive Publication Date: 2007-08-29
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, liquid crystal display devices using large-sized liquid crystal panels can distort images depending on the viewing position relative to the screen

Method used

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  • Liquid crystal display device having improved side visibility
  • Liquid crystal display device having improved side visibility
  • Liquid crystal display device having improved side visibility

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Embodiment Construction

[0016] In the present invention, a liquid crystal display device uses a vertical alignment method of liquid crystals to improve side visibility. In the vertical alignment mode, the liquid crystal molecules are vertically aligned without applying an electric field, and when a voltage is applied to the liquid crystal, the liquid crystal molecules are aligned substantially vertically to the electric field. In the vertical alignment method, the super patterned vertical alignment (S-PVA) method divides each pixel PX into two sub-pixels PXA and PXB, and adjusts the voltage applied to the liquid crystal so that the voltage applied to the sub-pixel PXA is different to the voltage applied to the sub-pixel PXB. The difference in voltage applied to the liquid crystals with respect to the two sub-pixels PXA and PXB results in a difference in transmittance, thereby improving side visibility of the liquid crystal display device. The present invention provides a method of applying data volt...

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Abstract

A liquid crystal display device having optimal side visibility stores gray scale data corresponding to the input data signals in a look-up table. Each pixel of a liquid crystal panel includes two sub-pixels, and a controller of the liquid crystal display device applies a data voltage having different levels to the sub-pixels using the look-up table data.

Description

[0001] This application claims priority from Korean Patent Application No. 2006-17273 filed on February 22, 2006, the entire contents of which are hereby disclosed by reference. technical field [0002] The present invention relates to a liquid crystal display device and an improved method of setting gray levels for said display. Background technique [0003] A liquid crystal display device includes two substrates separated by a liquid crystal layer, and an electric field is applied to the two substrates. The device displays images because an applied electric field controls light transmittance through the liquid crystal layer. However, a liquid crystal display device using a large-sized liquid crystal panel may distort an image depending on a viewing position with respect to a screen. Contents of the invention [0004] The present invention provides a liquid crystal display device having improved display quality especially when viewed from the side. In addition, the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G09G3/36
CPCG09G3/3648G09G2360/16G09G3/3688G09G2320/028G09G3/2074G09G2320/0673G09G3/3607G09G2320/0276G09G3/3614B26B19/046B26B19/063B26B19/3853
Inventor 李濬表
Owner SAMSUNG ELECTRONICS CO LTD