A dust detection device of a liquid crystal display module
By combining a threaded rod and cylinder positioning structure with a motor-driven conveyor belt and synchronous belt drive, the problem of offset and shaking of the LCD display module during the testing process is solved, achieving precise positioning and stable transmission of the module, and improving testing efficiency and the accuracy of results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HENGZHENGQI ELECTRONICS CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-02
AI Technical Summary
Existing automated testing equipment for LCD modules lacks effective limiting and positioning mechanisms in the module conveying process, which causes the modules to easily deviate and shake on the conveyor belt, affecting the accurate capture of the testing camera and the accuracy and reliability of the testing results.
The system uses a threaded rod and handwheel to adjust the position of the limit rollers, and a cylinder to push the positioning plate in conjunction with the rubber pad for module positioning. Combined with a motor-driven conveyor belt and synchronous belt transmission structure, it achieves precise positioning and stable transmission of the module. The height of the detection camera is adjusted by an electric push rod to ensure the accuracy of dust detection.
It achieves precise positioning of the LCD display module during the transmission process, prevents offset and shaking, improves detection efficiency and accuracy, ensures the reliability of detection results, and realizes orderly processing after detection through the collection box.
Smart Images

Figure CN224317547U_ABST