Method for compensating spliced bright and dark lines

A compensation method, a technology of bright and dark lines, applied to instruments, static indicators, etc., can solve the problems of long time consumption, sensitivity to light, and great harm to human eyes, and achieve the effect of avoiding long time consumption and improving efficiency.

Active Publication Date: 2015-10-07
XIAN NOVASTAR TECH
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AI Technical Summary

Problems solved by technology

This method requires experienced calibration personnel, is sensitive to light

Method used

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  • Method for compensating spliced bright and dark lines
  • Method for compensating spliced bright and dark lines
  • Method for compensating spliced bright and dark lines

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Embodiment Construction

[0029] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Specifically, in one embodiment of the present invention, the specific process of compensating the spliced ​​bright and dark lines of the LED display is as follows:

[0031] (1) Image shooting

[0032] In a dark room environment, use an image capture device such as a CCD camera to shoot at an LED display that lights up multiple LED points of the same color, and obtain, for example figure 1 Captured image shown. Here, taking the RGB full-color LED display screen as an example, the multiple LED light points of the same color that are lit are, for example, all the green LED light points on the LED display screen; of course, the present invention is not limited to this, and other Color LED dots such as blue LED or red LED dots. I...

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Abstract

The invention relates to a method for compensating spliced bright and dark lines. The method comprises the steps that 1, a shot image of a spliced display screen with a plurality of same-color display units lightened is acquired; 2, area locating is carried out on the shot image to acquire the width and height of an image area, corresponding to a display area of the spliced display screen, in the shot image; 3, the mapping dimensions and splicing positions of a plurality of spliced units of the spliced display screen are acquired; 4, whether the spliced bright and dark lines exist on each spliced position or not is determined; 5, the brightness compensation coefficients of edge display units of the spliced units on the two sides of the spliced positions with the spliced bright and dark lines are determined to compensate the spliced bright and dark lines. One single-color image is shot, brightness statistic analysis is carried out according to a statistics unit, the positions of the spliced bright and dark lines on the image can be found precisely and fast, and the spliced bright and dark lines can be compensated. Therefore, efficiency can be improved, and the problems that a traditional method is long in consumed time, low in efficiency and high in requirement for correction personnel are solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a splicing bright and dark line compensation method. Background technique [0002] With the development of LED display technology, LED displays are currently being applied to various fields due to their advantages of low cost, low power consumption, high visibility, and free assembly. The LED display screen is spliced ​​by multiple splicing units. Due to the limitations of machining accuracy and assembly accuracy in the splicing process, the splicing unit and the splicing unit are not evenly spliced, resulting in inconsistent spacing between the edge LED lights at the splicing point. When displaying images, when the spacing is greater than the standard spacing of light points, dark seams will appear; when the spacing is smaller than the standard spacing of light points, bright seams will appear. This kind of dark seam or bright seam is called LED display splicing light and dark ...

Claims

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Application Information

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IPC IPC(8): G09G3/32
Inventor 杨树林袁胜春赵星梅
Owner XIAN NOVASTAR TECH
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