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Liquid crystal display, and method and system for automatically adjusting flicker of the same

A liquid crystal display, automatic adjustment technology, applied to static indicators, instruments, applications, etc., can solve problems such as operator deviation, input digital values, and failure to read

Inactive Publication Date: 2006-07-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is easier to implement than the variable resistor method; however, it is difficult for the operator to enter a numerical value while looking at the LCD screen, and again, there is a bias for each operator
Also, the final setting value is stored in a memory such as an EEPROM embedded in the LCD, and currently no device with an I2C interface required to read the value in memory is available; therefore the value cannot be read
Therefore, it is only possible to determine the change history of the common voltage with a separate measuring device

Method used

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  • Liquid crystal display, and method and system for automatically adjusting flicker of the same
  • Liquid crystal display, and method and system for automatically adjusting flicker of the same
  • Liquid crystal display, and method and system for automatically adjusting flicker of the same

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Embodiment Construction

[0025] The invention will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[0026] In the drawings, the thickness of layers and regions are exaggerated for clarity. Like symbols refer to like elements throughout. It will be understood that when an element such as a layer, film, region, substrate, or panel is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. components. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

[0027] figure 1 is a block diagram of an LCD according to an exemplary embodiment of the present invention. figure 2 A structure and an equivalent circuit diagram of an LCD p...

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Abstract

A method of automatically adjusting a flicker of a liquid crystal display including a digital variable resistor (DVR) generating a common voltage on the basis of an input signal, and the method includes: locating a photographing device in front of the liquid crystal display; verifying a default value stored in the DVR; performing a rough flicker measurement; generating a quadratic equation; determining a solution of the quadratic equation; performing a fine flicker measurement; selecting an optimum value; and inputting the optimum value to the DVR.

Description

[0001] This application claims priority and benefit from Korean Patent Application No. 10-2005-0000409 filed Jan. 4, 2005, which is hereby incorporated by reference in its entirety as if fully set forth herein. technical field [0002] The present invention relates to a liquid crystal display, and a method and system for automatically adjusting the flicker phenomenon of the liquid crystal display. Background technique [0003] A liquid crystal display (LCD) includes: a liquid crystal (LC) panel assembly having two panels provided with pixel electrodes and common electrodes; and an LC layer having dielectric anisotropy interposed therebetween. The pixel electrodes are arranged in a matrix and connected to switching elements such as thin film transistors (TFTs) to subsequently apply data voltages along rows. The common electrode covers the entire surface of the upper panel and has a common voltage Vcom. The pixel electrode, the common electrode, and the LC layer form an LC ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/20G02F1/133
CPCG09G2320/0247G09G3/3648G09G3/006G09G2300/0408G09G2320/0693G09G2340/14A47J27/004A47J27/08A47J36/00Y10S220/912
Inventor 吴在镐朴宰亨金太星李升佑
Owner SAMSUNG ELECTRONICS CO LTD
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