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Display brightness uniformity test method and device

A technology of brightness uniformity and test method, applied in static indicators, instruments, etc., can solve problems such as low test efficiency, display screen interference, and inaccurate test results, and achieve the effect of improving test efficiency

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

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to propose a method and device for testing the brightness uniformity of a display screen, aiming at solving the problem that in the prior art, when testing the brightness uniformity of a display screen, it is easily disturbed by human factors, resulting in inaccurate test results, and Technical problems with low test efficiency

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  • Display brightness uniformity test method and device
  • Display brightness uniformity test method and device

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Embodiment Construction

[0048] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention, and in the absence of conflict, the present invention The embodiments and the features in the embodiments can be combined with each other.

[0049] The invention provides a method for testing the brightness uniformity of a display screen, which can be used to test the brightness uniformity of a display. figure 1 , figure 1 It is a schematic flow chart of the first embodiment of the test method for the brightness uniformity of the display screen of the present invention. In this embodiment, the test method for the brightness uniformity of the display screen includes:

[0050] Step S10, capturing the image currently displayed on the display screen, and determining the ...

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Abstract

The invention discloses a display brightness uniformity test method. The method includes capturing a current showing image of a display, determining the captured image as a testing image, performing low-pass filtering and high-pass filtering of the testing image respectively, obtaining a high frequency image and low frequency image of the testing image, adding pixel values of pixels of the high frequency image and low frequency image respectively, obtaining a low frequency pixel value and a high frequency pixel value, calculating a ratio of a sum of the low frequency pixel value and high frequency pixel value and total number of corresponded pixel points of the high frequency image and low frequency image, and determining the uniformity level of the display according to the ratio. The invention further discloses a display brightness uniformity test device. By the aid of the method and device, the technical problem that the testing result is inaccurate since the display brightness uniformity testing process is prone to be disturbed by human factors in the prior art is solved, and the testing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of display screens, in particular to a method and device for testing brightness uniformity of a display screen. Background technique [0002] When the brightness of the display is not uniform, various traces will appear in the displayed image, and the brightness uniformity of the display reflects the quality of the display. If the brightness of the display screen is uniform, the image display effect will be better, if not, the display effect will be poor. [0003] The traditional methods of testing the brightness uniformity of display screens include: 1. Use human vision and a luminance meter to judge whether the uniformity is good or bad, and use subjective feelings to arrange the display effects of different display screens; Randomly select N sample points or modules, and use the color brightness meter to measure the brightness value of the sample point and the brightness of the remaining 8 sample points ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00
CPCG09G3/006
Inventor 王甜甜
Owner SHENZHEN TCL DIGITAL TECH CO LTD