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Display screen uniformity test method and system

A test method and test system technology, applied in the direction of testing optical performance, etc., can solve the problem of not reflecting the uniformity distribution of the display screen

Active Publication Date: 2017-02-22
SHENZHEN TCL NEW-TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above technical solution is that the test results cannot reflect the uniform distribution of the display screen

Method used

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  • Display screen uniformity test method and system
  • Display screen uniformity test method and system

Examples

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no. 1 example to no. 3 example

[0101] see Figure 8 , based on the first embodiment to the third embodiment of the display screen uniformity test method of the present invention, in the fourth embodiment of the display screen uniformity test method of the present invention, step S20 includes:

[0102] Step S21, obtaining the pixel value of each pixel on the initial image, and obtaining the pixel value of each pixel on the filtered image;

[0103] Step S22, according to the pixel value of each pixel point on the initial image and the pixel value of each pixel point on the filter image, calculate the relationship between each pixel point on the initial image and the pixel value on the filter image The pixel value difference of the corresponding pixel point;

[0104] Step S23, according to the pixel value of each pixel on the initial image and the pixel value of each pixel on the filtered image, calculate the average value of the pixel values ​​of the initial image and the filtered image;

[0105] Step S24, ...

no. 1 example

[0112] see Figure 9 , based on the first embodiment of the display screen uniformity test method of the present invention, in the fifth embodiment of the display screen uniformity test method of the present invention, after step S30, further includes:

[0113] Step S40, acquiring the position and pixel value of each pixel on the uniform distribution image, and generating the initial The uniformity of the image distribution simulates the image.

[0114] According to the size of the uniformity distribution image and the pixel value of each pixel on the uniformity distribution image, generate a uniformity distribution simulation image of the display area of ​​the display screen to be tested corresponding to the initial image, that is Generate a uniformity distribution simulation image of the display area of ​​the display screen to be tested corresponding to the display state image, in the uniformity distribution simulation image, each pixel value is represented by a color diffe...

no. 1 example to no. 3

[0151] see Figure 19 , based on the first embodiment to the third embodiment of the display screen uniformity test system of the present invention, in the fourth embodiment of the display screen uniformity test system of the present invention, the comparison image generation module 20 includes:

[0152] The second acquiring unit 21 is configured to acquire the pixel value of each pixel on the initial image, and acquire the pixel value of each pixel on the filtered image;

[0153] A difference value calculation unit 22, configured to calculate the difference between each pixel on the initial image and the pixel value on the filtered image according to the pixel value of each pixel on the initial image and the pixel value of each pixel on the filtered image. The pixel value difference of the corresponding pixel on the filtered image;

[0154] A mean calculation unit 23, configured to calculate the mean value of the pixel values ​​of the initial image and the filtered image acc...

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Abstract

The invention discloses a display screen uniformity test method, which comprises the following steps of obtaining a display state image of a display screen to be tested; determining the display state image into an initial image; performing filtering processing on the initial image so as to generate a filtering image; generating a comparison image used for showing the interference pixel value of the initial image according to the pixel value difference of each pixel point on the initial image and the filtering image; generating a uniformity distribution image of the initial image according to the pixel value differences of each pixel point on the initial image and the comparison image. The invention also discloses a display screen uniformity test system. The method and the device provided by the invention aim at reflecting the uniformity distribution condition of the display screen through the test results.

Description

technical field [0001] The invention relates to the technical field of display screen testing, in particular to a display screen uniformity test method and a display screen uniformity test system. Background technique [0002] The display screen is often used as a display component of a display device such as a TV or a computer, and the brightness uniformity of the display screen reflects the quality of the display screen uniformity. If the display screen is uniform, the image display effect is better, otherwise, the display effect is poor. [0003] In the prior art, a nine-point test method is usually used to detect the uniformity of the display screen, that is, nine sample points or modules are randomly selected on the display screen for brightness testing. Since the selection of sample points or modules is random, and the selection of sample points The number is limited, so the test results can only reflect the pixel values ​​of the sample points or modules on the displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 王甜甜
Owner SHENZHEN TCL NEW-TECH CO LTD
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