Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Display screen foreign matter detection method

A technology of foreign matter detection and display screen, which is applied in the direction of optical testing for flaws/defects, etc., can solve the problems of production line inspection work difficulty, standard angle full-view angle inspection, control of pressure inspection strength, product flow, etc., to achieve automatic and intelligent inspection Requirements, avoid detection errors, effect of low artificial dependence

Inactive Publication Date: 2016-09-28
BENGBU GUOXIAN TECH CO LTD
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pressure inspection fixtures can only perform inspections at two angles (two front and rear angles) and the angles cannot be fixed (general products require an inspection specification of 45 degrees front, back, left, and right)
At the same time, the current pressure inspection fixture is equipped with glass from the reverse side, which seriously affects the working efficiency
[0004] Through market research, it is found that the existing pressure inspection fixtures cannot realize the full-view inspection of standard angles and the control of pressure inspection strength
It brings a certain degree of difficulty to the inspection work of the employees of the production line, which leads to some bad products flowing into the hands of end users. On the one hand, it brings a lot of inconvenience to end users when using it, and on the other hand, it also brings a Great influence, and even lose the bargaining chip of market competition

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Display screen foreign matter detection method
  • Display screen foreign matter detection method
  • Display screen foreign matter detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] refer to figure 1 , a method for detecting foreign objects on a display screen proposed by the present invention, comprising the following steps;

[0025] S1. Fix the display screen. Specifically, the display screen can be clamped by setting a clamping mechanism to prevent the display screen from moving during the detection process.

[0026] S2. A pressure roller is set to roll on the screen of the display screen to squeeze the display screen in full. The length of the pressure roller can be equal to the width of the display screen, so that the pressure roller can squeeze the entire screen of the display screen once it rolls on the display screen, and the extrusion of the pressure roller to the display screen is continuous in time and space It can avoid false detection caused by a certain position of the display screen not being squeezed.

[0027] S3. Obtain the image of the display screen during the rolling process of the pressure roller. Since the relative positio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a display screen foreign matter detection method. The method comprises the following steps: 1, fixing a display screen; 2, arranging a pressure roller, and rolling the pressure roller on the display screen to carry out full-screen extrusion on the display screen; 3, acquiring display screen images in the pressure roller rolling process; 4, intercepting the display screen images acquired in step 3 by adopting the pressure roller as a reference object; 5, splicing acquired screenshots to form a pressed state display screen image used as a display screen pressing image; and 6, judging that whether foreign matters exist in the display screen pressing image or not. In the invention, the images are acquired in the pressure roller rolling process, the display screen screenshots are spliced to form the display screen pressing image, and the foreign matters exist in the display screen or not is simply and clearly judged from the display screen pressing image in order to judge whether the foreign matters exist in the display screen or not.

Description

technical field [0001] The invention relates to the technical field of display screen quality inspection, in particular to a method for detecting foreign objects on a display screen. Background technique [0002] With the development of electronic imaging technology, display screens are widely used in various industries as a graphic display tool. During the production process of the display screen, it is difficult to avoid foreign matter inside it. Once foreign matter appears inside the display, it will affect the clarity and accuracy of the graphic display in the slightest, and affect the service life of the display in severe cases. Therefore, in the production process of display screens, internal foreign object detection is an essential quality inspection procedure. [0003] At present, the detection of the display screen is mostly carried out through the pressure inspection fixture. Existing pressure inspection fixtures can only perform inspections at 2 angles (front a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
CPCG01N21/88
Inventor 欧木兰
Owner BENGBU GUOXIAN TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com