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Contrast Enhanced Vertically Aligned Display Devices

A technology for display devices and capacitors, used in static indicators, instruments, nonlinear optics, etc., to solve problems such as poor lateral visibility

Inactive Publication Date: 2015-08-26
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, vertical alignment (VA) mode liquid crystal display devices have poorer lateral visibility than front visibility

Method used

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  • Contrast Enhanced Vertically Aligned Display Devices
  • Contrast Enhanced Vertically Aligned Display Devices
  • Contrast Enhanced Vertically Aligned Display Devices

Examples

Experimental program
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Embodiment Construction

[0031] The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

[0032] First refer to figure 1 A display device according to an exemplary embodiment of the present invention is described.

[0033] figure 1 is an equivalent circuit diagram of a pixel of a liquid crystal display device according to an exemplary embodiment of the present invention.

[0034] Such as figure 1 As shown, for the liquid crystal display device according to the exemplary embodiment of the present invention, a pixel 900 includes two sub-pixels 901 and 902 . The sub-pixels 901 and 902 include thin film transistors Qs_h and Qs_l, liquid crystal capacitors Clc_h and Clc_l, and variable capacitors Cst_h and Cst_l...

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PUM

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Abstract

A vertical alignment liquid crystal display includes two sub-pixels each with a variable capacitor. A pixel is bisected into a high gray sub-pixel and a low gray sub-pixel through forming a variable capacitor at each sub-pixel. With this structure, the sub-pixels express different grays so that lateral visibility is enhanced. It is not required in bisecting a pixel into two sub-pixels to form separate wires for applying different signals thereto, and the amount of data to be processed at the driver for driving the display device is reduced. Furthermore, a pixel is bisected into two sub-pixels with variable capacitors in a simplified manner, and it is not required to form additional wires and elements, so the aperture ratio is enhanced.

Description

technical field [0001] The present invention relates to a liquid crystal display device, more particularly, to a vertical alignment liquid crystal display device. Background technique [0002] Liquid crystal display devices (LCDs) are now widely used as one of the important flat panel display devices. A liquid crystal display device has two display panels on which field generating electrodes such as pixel electrodes and common electrodes are formed, and a liquid crystal layer interposed between the panels. In a liquid crystal display device, a voltage is applied to the electrodes, and the electric field generated across the liquid crystal layer determines the orientation of the liquid crystal molecules. Video images are displayed on the LCD panel by controlling the polarization of incident light according to the display data signal. [0003] Among liquid crystal display devices, vertical alignment (VA) mode liquid crystal display devices have the advantages of high contras...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362G02F1/1368G02F1/139H10B12/00
CPCG09G2320/028G02F1/1362G09G2300/0876G09G3/3607G09G2300/0447G09G3/3648G09G2300/0443G02F1/136286G02F1/1368G09G3/36G02F1/133G02F1/1343G09G3/20
Inventor 高俊哲郑光哲蔡钟哲郑美惠尹宁秀
Owner SAMSUNG DISPLAY CO LTD