A module defect detection method and system

Abstract

The invention discloses a defect detection method and system for a module. A to-be-detected module is lightened to display a preset gray-scale picture, a side light source of module detection equipment is turned on to obtain a first detection picture, the detection of foreign matter defects in the cover plate glass is realized through the darkening defects in the first detection picture, and underthe combined action of backlight and sidelight, the foreign matters under the cover plate and the foreign matters on the cover plate are accurately classified through the combination of the L128 andthe Part picture, so that the subsequent defect judgment and output are facilitated.

Description

technical field [0001] The invention belongs to the field of module detection, and in particular relates to a module defect detection method and system. Background technique [0002] As more and more brands launch new products such as touch mobile phones, touch tablets and touch vehicle display screens, the demand for testing of such products is also increasing. When adding Cover Glass (cover glass) to the display panel, dust may enter; when bonding the display panel and the cover, there will be adhesive overflow into the display area. These process problems will reduce the quality of the product. Manufacturers These are required to be detected as defects. [0003] Usually AOI inspection is carried out, the dust on the panel surface will be darkened in the white, R / G / B, L48, L0 screens, and then the dust on the upper surface will be brightened through the Particle screen (that is, the screen with side light only) to filter the dust and reduce the overshoot However, the dus...

AI Technical Summary

Problems solved by technology

[0004] As for how to distinguish the foreign matter in the cover plate from the foreign matter on the cover plate, the existing technical solutions either directly ignore this problem, but this will lead to a large number of missed detections of such defects during panel inspection; or set up a separate re-judgment station Re-judgment by personnel one by one will increase the cost of time and labor; either add a line-scan camera to distinguish foreign objects on the top and bottom of the cover through the advantage of the line-scan camera, but this not only requires adding a line-scanning machine position on the machine It will also increase the material cost

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