Display brightness uniformity detection method and display brightness uniformity detection device

A technology of brightness uniformity and detection method, which is applied in the electronic field, can solve problems such as inaccurate detection results, lower production efficiency, time-consuming and laborious, etc., and achieve the effects of shortening detection time, improving accuracy, and improving productivity

Active Publication Date: 2017-04-26
GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the need to manually locate each test point in the existing technical solutions, there will inevitably be poor positioning, resulting in inaccurate test results and low data reproducibility. Time-consuming and laborious, making the detection time long and reducing production efficiency

Method used

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  • Display brightness uniformity detection method and display brightness uniformity detection device
  • Display brightness uniformity detection method and display brightness uniformity detection device
  • Display brightness uniformity detection method and display brightness uniformity detection device

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Embodiment 1

[0048] The technical solutions provided by the embodiments of the present invention can be applied to such as figure 2 In the detection system shown. The detection system includes a luminance tester 220, and the entire test process is completed in a standard darkroom environment. The luminance tester 220 is non-contact and fixedly arranged at 1 meter in front of the display screen 210 to be tested. Wherein, the luminance tester 220 It is used to detect the brightness value of the target test point on the display screen 210 to be tested.

[0049] image 3 It is a schematic flowchart of a method for detecting brightness uniformity of a display screen provided by Embodiment 1 of the present invention. The method is applicable to the detection of the brightness uniformity of the display screen, and the method can be executed by a detection device for the brightness uniformity of the display screen, which can be composed of hardware and / or software, and can generally be integrat...

Embodiment 2

[0061] Figure 5 It is a schematic flowchart of a method for detecting brightness uniformity of a display screen provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the foregoing embodiments, and provides a preferred detection method for display brightness uniformity, specifically, displaying at least two frames of test pictures corresponding to at least two target test points in the display screen to be tested. The optimization includes: displaying the first test picture corresponding to the first target test point on the display screen to be tested; displaying the next test picture corresponding to the next target test point on the test screen according to the test picture switching instruction.

[0062] S510. Display a first test picture corresponding to the first target test point on the display screen to be tested.

[0063] Specifically, the test point with the highest luminance value among the target test points is set as the ...

Embodiment 3

[0071] Figure 6 It is a schematic flowchart of a method for detecting brightness uniformity of a display screen provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments, and provides a preferred detection method for the brightness uniformity of the display screen. Specifically, the brightness uniformity of the display screen to be tested is calculated according to the brightness value corresponding to the target test point and further optimized as , including: obtaining the lowest brightness value among the brightness values ​​corresponding to each target test point except the first target test point; dividing the lowest brightness value by the brightness value corresponding to the first target test point to obtain the brightness uniformity of the display screen to be tested .

[0072] S610. Display a first test picture corresponding to the first target test point on the display screen to be tested.

[0...

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Abstract

The embodiments of the invention disclose a display brightness uniformity detection method and a display brightness uniformity detection device. The method comprises the following steps: displaying at least two frames of test pictures corresponding to at least two target test points in a display under test; acquiring the brightness value corresponding to the target test point contained in each frame of test picture; and calculating the brightness uniformity of the display under test according to the brightness values corresponding to the target test points. Through the technical scheme of the invention, the accuracy of the detection result is improved, the detection time is shortened, and the productivity is increased.

Description

technical field [0001] Embodiments of the present invention relate to the field of electronic technology, and in particular to a method and device for detecting brightness uniformity of a display screen. Background technique [0002] With the development of electronic technology, especially the increasing demand for electronic display screens, how to improve the production and testing efficiency of electronic display screens has become an urgent problem for major manufacturers. [0003] In order to evaluate the quality of a display screen, it is usually necessary to detect the brightness uniformity of the display screen during the production test process of the display screen. The scheme currently used to detect brightness uniformity is as follows: figure 1 As shown, firstly, the white field signal is sent to the display screen 1, and then, the brightness testing instrument is manually moved in sequence, and each test point (namely the first test point 11, the second test p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/00
Inventor 陶炳俊谭凯
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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