Display screen gray scale detection method and device
A detection method and detection device technology, applied in the field of display screens, can solve the problems of inaccurate gray scale detection results, high personnel costs, and low accuracy
Active Publication Date: 2017-05-10
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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Problems solved by technology
[0004] The existing display grayscale detection method needs to be detected by artificial human eyes, resulting in low detection accuracy and high personnel costs. When it is large, it will lead to inaccurate results of grayscale detection
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[0051] In order to facilitate a better understanding of the present invention, the present invention will be further explained below in conjunction with the accompanying drawings of related embodiments. Embodiments of the invention are shown in the drawings, but the invention is not limited to the preferred embodiments described above. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough.
[0052] see figure 1 , is a flow chart of the method for detecting the gray scale of the display screen provided by the first embodiment of the present invention, including steps S10 to S30.
[0053] Step S10, judging whether the pixel difference between adjacent pixels in the image to be detected is greater than a preset pixel difference;
[0054] When it is determined in step 10 that the pixel difference between adjacent pixels in the image to be detected is greater than a preset pixel difference, step S20 is executed.
[0055] Step S20, d...
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The invention provides a display screen gray scale detection method, and the method comprises the steps: judging whether the pixel difference between the adjacent pixels in a to-be-detected image is greater than a preset pixel difference value or not; displaying coordinate points, corresponding to the adjacent pixels, in the display image in a first color if the pixel difference between the adjacent pixels in the to-be-detected image is greater than the preset pixel difference value, wherein the display image is a scanning image of the coordinates of the pixels in the to-be-detected image; judging whether the number of color display lines formed by the coordinate points in the first color is equal to a preset number or not. The method can automatically judge whether the gray scale of the display screen is qualified or not through the number of color display lines and the preset number. The device comprises a first judgment module, a first mark module, a second judgment module and an LED lamp. The device does not need manual detection, reduces the personnel cost, and is high in precision.
Description
technical field [0001] The invention relates to the technical field of display screens, in particular to a method and device for detecting the gray scale of a display screen. Background technique [0002] With the continuous advancement of science and technology, people's living standards have also been greatly improved, and the display screen, as a daily use device, has also been developed rapidly. The display screen can display a variety of numbers, text, graphics, images, etc. etc.; it can be used not only in indoor environment but also in outdoor environment. The display screen is widely used in household appliances, industrial and military fields. [0003] The existing grayscale detection method of the display screen is to use a camera to take pictures of the display screen to obtain an image, and then check whether the grayscale area in the image is obvious through the human eyes of the inspector. When each grayscale area in the image is obvious, it proves that the di...
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IPC IPC(8): G09G3/00
CPCG09G3/006
Inventor 刘柏芳
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD