Display screen foreign matter detection method

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...

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

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