Method and system for adjusting screen brightness uniformity of splicing display device

A technology of screen brightness and splicing display, applied in static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of poor uniformity of screen brightness of splicing display devices, and achieve the effect of avoiding aperture and improving brightness uniformity.
CN103531175BInactive Publication Date: 2016-08-17GUANGDONG VTRON TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG VTRON TECH CO LTD
Publication Date
2016-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method and system for adjusting screen brightness uniformity of a spliced ​​display device, wherein the method includes the steps of: dividing the screen into a middle area and a border area, and detecting the average brightness value of each pixel in the middle area and the minimum brightness value of pixels in the border area ; Calculate the compensation parameters of the middle area according to the average brightness value and the minimum brightness value, and calculate the compensation parameters of the boundary area according to the minimum brightness value; perform brightness for each pixel in the middle area of ​​the screen according to the compensation parameters of the middle area Compensation: Compensate the brightness of the border area of ​​the screen according to the compensation parameters of the border area; perform border fading processing on the compensated screen. The brightness uniformity is improved by the solution of the invention.
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Description

technical field

[0001] The present invention relates to the technical field of splicing display, in particular to a method and system for adjusting brightness uniformity of a screen of a splicing display device. Background technique

[0002] The splicing display device is a large-screen display system including multiple small screens, and is generally used for super-large-screen display of one screen and multi-window display of multiple screens. At present, due to the uneven brightness of the screen, dark edges and dark corners often appear when the screen is displayed. When the phenomenon of dark edges and corners is obvious, it will affect the display effect of the screen. Therefore, it is more and more important to adjust the brightness uniformity of the screen.

[0003] Some of the traditional techniques for adjusting brightness uniformity use multi-point gradient compensation techniques. This kind of compensation has the disadvantage of aperture effect after passing ...

Claims

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