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Method for removing LCD flash phenomenon

A technology of liquid crystal display and flicker phenomenon, which is applied in the direction of static indicators, instruments, etc., can solve the problems of inaccuracy and slow speed, and achieve the effect of good picture effect

Inactive Publication Date: 2011-02-02
L&T DISPLAY TECH FUJIAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is: manually adjust the VCOM value and visually detect the flickering of the screen, this solution is imprecise and slow

Method used

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  • Method for removing LCD flash phenomenon
  • Method for removing LCD flash phenomenon

Examples

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Embodiment Construction

[0015] The method to eliminate the flickering phenomenon of the LCD screen, for the flickering phenomenon of the LCD screen, you can use the screen output by a specific signal generator, and use the color analyzer CA210 (CA-P12 / 15 or CA-PS12 / 15) to measure it. In the FLIC mode of the color analyzer CA210, you can see the number of flashes per second of the screen. In addition, set the VCOM parameter to be adjustable. By adjusting the VCOM value, the FILC value of the LCD can be changed. In the LCD driver, open the DDCCI Command for VCOM adjustment and display it in the factory menu. At this point, you can use the DDCCICommand to change the VCOM value production method to change VCOM, thereby changing the FLIC value of the LCD.

[0016] Use a PC to send DDCCI Command to the LCD display through the flash card to change VCOM; use a PC to read the FLIC value obtained by the color analyzer CA210 through the USB interface. Therefore, by writing a program, using tools such as PC, co...

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Abstract

The invention discloses a method for removing an LCD flash phenomenon, and the method comprises the following steps: a computer, a signal generator, a fire card and a color analyzer are prepared; the fire card is connected to a display by a VGA line, the computer is connected with the fire card by a print line, the signal generator is connected to the fire card by a signal line, the color analyzer is connected to the computer by a USB line, and the computer and the signal generator are connected by a serial port line; the computer is used for running an adjustment program, reading an FLIC value from the color analyzer and sending a DDCCICommand by the fire card to change a VCOM value of the LCD, thus adjusting the FILC value of the LCD; and by adopting an asymptotic manner, the change of V-COM data is realized, and the FILC value is measured by the color analyzer until the measured datum is the minimum. By compiling programs and utilizing the computer, the color analyzer, the fire card and the like, the VCOM value of the display is adjusted, thus adjusting the FILC value of the display and ensuring the picture effect to be optimum.

Description

【Technical field】 [0001] The invention relates to a liquid crystal display screen adjustment technology, in particular to a method for eliminating the flicker phenomenon of the liquid crystal display screen. 【Background technique】 [0002] The screen of the LCD monitor sometimes flickers. This is because the grayscale of the displayed screen changes slightly every time the screen is updated, so people feel that the screen is flickering. The flicker phenomenon is closely related to the brightness, temperature, humidity and other conditions of the environment where the display is located. An LCD display that has eliminated the flicker phenomenon under a certain condition may reappear the flicker phenomenon if it is used in another environmental condition. [0003] Since the appearance of flicker will seriously affect the display effect of the LCD, in order to eliminate the flicker and ensure the display effect of the LCD, there is a VCOM parameter in the LCD, and the VCOM volt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00G09G3/36
Inventor 李仕兵
Owner L&T DISPLAY TECH FUJIAN
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