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Method and device for detecting bright spot defect of display panel and readable storage medium

A technology for display panels and detection methods, applied in image analysis, image enhancement, instruments, etc., can solve the problems of indistinguishable features, sizes, and appearance characteristics, loss, weak bright spots, etc.

Pending Publication Date: 2020-06-16
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Partial failure of the driving circuit layer may cause the display panel to have weak grayscale and poor bright spots
Weak gray-scale bright spots do not emit light in black screens, but the brightness is greater than the background brightness when displaying the screen, which affects the picture quality of the display panel
[0003] However, the gray-scale weak bright spots and the bubbles caused by the protective film defect of the display panel both present the same phenomenon when the display panel is lit, and the characteristics, size and appearance characteristics of the two cannot be distinguished in a single gray-scale screen, and the automatic inspection equipment will Bubbles are over-inspected as bad bright spots, resulting in yield loss during the bad spot test

Method used

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  • Method and device for detecting bright spot defect of display panel and readable storage medium
  • Method and device for detecting bright spot defect of display panel and readable storage medium
  • Method and device for detecting bright spot defect of display panel and readable storage medium

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Embodiment Construction

[0075] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure.

[0076] In the drawings, the thicknesses of regions and layers may be exaggerated for clarity. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0077] The terms "a", "an" and "the" are used to indicate th...

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Abstract

The invention provides a method and device for detecting poor bright spots of a display panel and a computer readable storage medium, and belongs to the technical field of display. The method for detecting the bright spot defect of the display panel comprises the following steps: inputting first picture data of which the gray-scale value is a first gray scale to the display panel, so that the display panel displays a first picture; detecting the maximum gray value and the average gray value of the first picture in each detection area; inputting second picture data of which the gray-scale valueis a second gray scale to the display panel, so that the display panel displays a second picture; detecting the maximum gray value and the average gray value of the second picture in each detection area; and according to the maximum gray value and the average gray value of the first picture in each detection area and the maximum gray value and the average gray value of the second picture in eachdetection area, judging whether each detection area of the display panel has a bright spot defect or not. According to the detection method for the poor bright spots of the display panel, the probability that bubbles are over-detected as gray-scale weak bright spots can be reduced.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular to a method and device for detecting defective bright spots of a display panel, and a computer-readable storage medium. Background technique [0002] Partial defects in the driving circuit layer may cause the display panel to have weak grayscales and defective bright spots. Gray-scale weak bright spots do not emit light in a black screen, but the brightness is greater than the background brightness when the screen is displayed, which affects the picture quality of the display panel. [0003] However, weak gray-scale bright spots and bubbles caused by defects in the protective film of the display panel show the same phenomenon when the display panel is lit, and the characteristics, size and appearance characteristics of the two are indistinguishable in a single gray-scale screen, and the automatic inspection equipment will Bubbles are over-inspected as bad bright spots...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T7/0006G06T2207/30121Y02P90/30
Inventor 冉艳雄张少博刘伟伟郑丛科冯刚李楠王世东
Owner BOE TECH GRP CO LTD
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