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Method for automatically correcting liquid crystal display screen Flicker

A liquid crystal display, automatic technology, applied in the direction of static indicators, instruments, etc., can solve the problems of product physical performance consistency differences

Active Publication Date: 2015-03-25
LEAD COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] TFT liquid crystal display has developed to this day, and its process technology is quite mature. Therefore, it is difficult to improve TFT from the process point of view. However, due to the existing production process conditions, technical level, equipment errors, and material properties, etc. , it is easy to cause consistency differences in product physical properties during the production and processing of liquid crystal displays headed by TFT

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  • Method for automatically correcting liquid crystal display screen Flicker
  • Method for automatically correcting liquid crystal display screen Flicker
  • Method for automatically correcting liquid crystal display screen Flicker

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Embodiment Construction

[0023] The specific embodiments of the present invention are described in detail below in conjunction with compliance. The following specific embodiments are only used to illustrate the concept of the present invention. Those of ordinary skill in the art can make various modifications and changes under the concept of the present invention. These deformations All changes and variations are included within the protection scope of the present invention.

[0024] The pattern display on the true-color TFT LCD is based on the three primary colors of red, green and blue, and each pixel contains three sub-pixels (expressed in RGB), that is, three sub-pixels of red, green and blue. Since the liquid crystal display adopts the AC driving principle, all pixels need to undergo a polarity change after each frame is refreshed. The difference between the SOURCE voltage and the VCOM electrode voltage, if it is positive, it is a positive polarity voltage, if it is negative, it is a negative pol...

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Abstract

The invention discloses a method for automatically correcting liquid crystal display screen Flicker. The method comprises the steps that a minimum Flicker value and a corresponding VCOM value produced when a picture on a qualified liquid crystal display screen flutters at first are searched for at first; then on this basis, three sets of reference values are set, the optimum point for Flicker of each liquid crystal screen to be tested is searched for according to the three sets of reference values, the VCOM value of the optimum point is burnt to an internal memory of a driving chip, and Flicker correction of the liquid crystal display screen to be tested is achieved. According to the method, no physical improvement is needed, and the liquid crystal display screen Flicker is corrected by finding the minimum Flicker value and the corresponding VCOM value.

Description

technical field [0001] The invention relates to a liquid crystal display screen, in particular to a method for correcting the Flicker of a liquid crystal display screen. Background technique [0002] At present, the types of displays mainly include OLED, TFT, CRT, PDP, LED, CSTN, STN, etc. Among them, OLED is almost monopolized by South Korea due to the bottleneck of manufacturing technology, and CRT is also gradually eliminated. PDP is directly eliminated by the EU due to excessive power consumption. Listed as a prohibited product, LED screens are mainly used as advertising screens, and it is difficult to display on handheld devices. CSTN has obvious color distortion because of false colors, and STN has a very narrow range of use because of monotonous black and white colors. Therefore, according to the current technical level, TFT liquid crystal displays are most widely used. [0003] TFT liquid crystal display has developed to this day, and its process technology is quite...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 颜和平
Owner LEAD COMM