A display module optical performance automatic testing method

By extracting brightness gradient and color deviation features from display module detection, constructing a feature vector set, and combining classification algorithms and dynamic adjustment strategies, the problem of information distortion in traditional detection methods is solved, achieving higher testing accuracy and reliability.

CN122115418BActive Publication Date: 2026-07-24ZHONGXIAN OPTOELECTRONICS TECH (ZHEJIANG) CO LTD
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Patent Information

Application Number
CN202610525958.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-21
Publication Date
2026-07-24
Estimated Expiration
2046-04-21

AI Technical Summary

Technical Problem

Traditional display module testing methods are difficult to control precisely during the testing process, leading to distorted information and affecting the accuracy of judgment and production efficiency.

Method used

By collecting test images of the display module, brightness gradient and color deviation features are extracted, a feature vector set is constructed, and anomaly categories are identified by combining classification algorithms and dynamic adjustment strategies. The test images are then re-collected by adjusting position parameters, and the overall performance value is calculated by integrating brightness and contrast uniformity values.

Benefits of technology

This improves the accuracy and reliability of display module testing, effectively identifies and corrects acquisition angle deviations, and enhances the precision and reliability of testing.

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Abstract

The application relates to the technical field of electric digital data processing, and particularly discloses a display module optical performance automatic testing method, which comprises the following steps: determining a feature vector set from an acquired image; calculating feature amplitudes in the feature vector set, and counting the number of feature amplitudes exceeding a preset deviation value; if the number exceeds a preset threshold value, determining a uniformity evaluation score; according to the uniformity evaluation score and the feature vector set, performing classification processing on a test picture to obtain an abnormal category; according to the abnormal category, a luminance gradient feature and a color deviation feature, adjusting the position parameters of the display module, and re-acquiring the test picture through an acquisition device; acquiring luminance uniformity values and contrast uniformity values from the test picture, and jointly calculating the comprehensive performance values; and generating a final test report. The display module optical performance automatic testing method solves the problems of low accuracy and reliability of the current testing method.
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