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Liquid crystal spliced screen, correcting method thereof and liquid crystal display device

A liquid crystal display device, splicing screen technology, applied in static indicators, optics, instruments, etc., can solve the problems of increased cost, difficult design, cumbersome and other problems, and achieve the requirements of reducing device requirements, low design difficulty, and high consistency. Effect

Active Publication Date: 2013-05-01
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the panel factory is producing, it is necessary to select LED lights with the same brightness and chromaticity to provide the backlight. In addition, it is also necessary to control the stability of the panel during the production process to reduce the gap between the panels. Such cumbersome, except Increased cost also increases design difficulties

Method used

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  • Liquid crystal spliced screen, correcting method thereof and liquid crystal display device
  • Liquid crystal spliced screen, correcting method thereof and liquid crystal display device
  • Liquid crystal spliced screen, correcting method thereof and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as image 3 As shown, the adjusting device includes a gamma correction unit 5 with adjustable gamma value and a chroma correction unit 7 with adjustable chroma value. By adjusting the gamma value, any one or both of brightness and flicker in the display effect of the liquid crystal panel can be adjusted; by adjusting the chromaticity value, the chromaticity in the display effect of the liquid crystal panel can be adjusted.

Embodiment 2

[0034] Such as Figure 4~6 As shown, the timing circuit control board 2 includes a timing control chip 9 for controlling the display of the liquid crystal panel 1, and the adjustment device also includes a programmable voltage buffer unit 10 with adjustable gamma values ​​coupled to the interface module 4 and a chromaticity value stored therein. The storage unit 8; the storage unit 8 transmits the chromaticity value to the timing control chip 9; transmits the gamma value to the programmable voltage buffer unit 10; the output signals of the timing control chip 9 and the programmable voltage buffer unit 10 pass through the flexible circuit The board 11 is coupled to the liquid crystal panel 1 ; the external debugging device writes the display parameters into the storage unit 8 and the programmable voltage buffer unit 10 respectively through the interface module 4 .

[0035]A set of optical sensing system can be selected as the external debugging equipment, and the sensing system...

Embodiment 3

[0037] Such as Figure 7 As shown, the present invention also discloses a display correction method of a liquid crystal splicing screen, the liquid crystal splicing screen includes at least two liquid crystal display devices, the liquid crystal display device includes a liquid crystal panel, a timing circuit control board for controlling the display of the liquid crystal panel, The sequential circuit control board includes an adjustment device storing display parameters; the adjustment device includes an interface module connected to an external debugging device; the correction method includes:

[0038] A. The display screen of one of the liquid crystal display devices is captured by the optical sensing system, and based on the entire display screen, the display effect of the display screen is extracted as a reference effect;

[0039] B. sequentially capture the display effect of other liquid crystal display devices through the optical sensing system;

[0040] C. Adjust the d...

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PUM

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Abstract

The invention discloses a liquid crystal spliced screen, a correcting method thereof and a liquid crystal display device. The liquid crystal spliced screen comprises a plurality of liquid crystal display devices, wherein each liquid crystal display device comprises a liquid crystal display panel and a driving circuit for controlling the display of the liquid crystal display panel, and each driving circuit comprises an adjusting device in which display parameters are stored; and the display parameters of the adjusting devices of at least two liquid crystal display devices in the plurality of liquid crystal display devices are different. According to the invention, the design difficulty and the cost can be reduced.

Description

technical field [0001] The present invention relates to the field of liquid crystal display, and more specifically, relates to a liquid crystal splicing screen, a calibration method thereof, and a liquid crystal display device. Background technique [0002] Such as figure 1 As shown, the LCD splicing screen is spliced ​​by using more than two liquid crystal display devices. If the panels of these liquid crystal display devices display different display effects such as brightness, flicker or chromaticity under the same color, then watch Or at the place where the panels meet, the picture you see will be discontinuous. Therefore, when the panel factory is producing, it is necessary to select LED lights with the same brightness and chromaticity to provide the backlight. In addition, it is also necessary to control the stability of the panel during the production process to reduce the gap between the panels. Such cumbersome, except Increased cost also increases design difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG02F1/133G09G3/36G06F3/1446G09G2300/026G09G2320/0233G09G2320/0242G09G2320/08
Inventor 许神贤李纯怀
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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