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Flat-panel display defect detection method and device

A flat panel display, defect detection technology, applied in the direction of instruments, image data processing, image enhancement, etc., can solve the problem of high requirements for hardware devices, and achieve the effect of high accuracy and robustness

Pending Publication Date: 2020-06-12
合肥欣奕华智能机器股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has higher requirements on hardware devices.

Method used

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  • Flat-panel display defect detection method and device
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  • Flat-panel display defect detection method and device

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Embodiment 1

[0024] Based on the principles of the above invention, an embodiment of the present invention provides a flat panel display defect detection method, such as figure 1 As shown, the method includes:

[0025] S101. Collect an original image displayed on a sample flat panel display.

[0026] Wherein, the sample flat panel displays include flat panel displays with defects and flat panel displays without defects.

[0027] Specifically, in order to train the convolutional neural network model, it is necessary to collect a large number of images displayed by defective flat-panel displays as positive samples and images displayed by non-defective flat-panel displays as negative samples, so as to train the convolutional neural network. Perform supervised learning training.

[0028] When collecting the original image displayed on the sample flat panel display, it may be collected by using an optical device such as a camera, a video camera and the like to directly capture the image displ...

Embodiment 2

[0104] An embodiment of the present invention provides a defect detection device for a flat panel display, and the defect detection device for a flat panel display is used to implement the above defect detection method for a flat panel display. Such as image 3 As shown in FIG. 1 , it is a schematic diagram of a possible structure of the flat panel display defect detection device provided by the embodiment of the present invention. Specifically, the flat panel display defect detection device 20 includes: an acquisition unit 201 , a preprocessing unit 202 , a model training unit 203 , an acquisition unit 204 and a detection unit 205 . in:

[0105] The acquisition unit 201 is configured to acquire the original image displayed by the sample flat panel display; the sample flat panel display includes a defective flat panel display and a non-defective flat panel display;

[0106] A preprocessing unit 202, configured to preprocess the original image to establish a sample image set;...

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Abstract

The embodiment of the invention provides a flat panel display defect detection method and device, and relates to the field of FPD defect detection. According to the embodiment of the invention, manualselection and extraction of defect features can be avoided, and the detection efficiency is improved. The method comprises the following steps: acquiring an original image displayed by a sample flatpanel display; wherein the sample flat-panel display comprises a flat-panel display with defects and a flat-panel display without defects; preprocessing the original image, and establishing a sample image set; wherein the sample images in the sample image set comprise two types of images, namely qualified images and unqualified images; supervised learning is performed on the convolutional neural network model by using the sample images in the sample image set and the types corresponding to the sample images in the sample image set, so that an image classifier can be generated; obtaining a display image of the to-be-detected flat panel display; and utilizing the image classifier to detect the display image so as to judge whether the to-be-detected flat panel display has defects or not. Themethod is applied to FPD defect detection.

Description

technical field [0001] The invention relates to the field of FPD (Flat Panel Display) defect detection, in particular to a defect detection method and device for a flat panel display. Background technique [0002] In the production process of FPD (Flat Panel Display), there will be more or less defects, which seriously affect the performance of FPD, so it is very important to detect defects before leaving the factory. [0003] In order to detect defects of flat panel displays, Chinese patent 201210538857.X discloses an optics-based defect detection system for flat panel displays. In the technical solution, the defect density of the flat panel display is calculated by detecting the current and the signal on the flat panel display. But this method has higher requirements on the hardware device. [0004] Therefore, how to detect defects on flat panel displays more conveniently and quickly has become a problem to be solved in the flat panel display industry. Contents of the ...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/10G06N3/04
CPCG06T7/0008G06T7/10G06T2207/20021G06T2207/30121G06N3/045
Inventor 梁叶户鹏辉李小明黄春来孙旺张海涛
Owner 合肥欣奕华智能机器股份有限公司
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