A multi-camera standard machine for defect detection of backlight modules
A backlight module and defect detection technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of manual inspection, unable to feed back accurate real-time inspection results, unable to formulate unified standards for inspection accuracy, and unable to adjust manufacturing processes in time. , to reduce labor costs and time costs, improve manufacturing processes, and avoid uneven quality
Active Publication Date: 2021-12-10
WUHAN JINGLI ELECTRONICS TECH +1
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Problems solved by technology
[0004] At present, the most commonly used method for backlight module detection in the industry is manual detection. This method is not only labor-intensive, but also low in detection efficiency.
What's more, due to the existence of visual differences among inspectors, it is impossible to formulate a unified standard for inspection accuracy, and it is difficult to guarantee product quality
In addition, manual inspection cannot feed back accurate results of real-time inspection, and cannot adjust the manufacturing process in time to improve the yield rate, resulting in low overall production capacity
Method used
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[0031] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0032] Such as Figure 1 to Figure 6 As shown, a multi-camera standard machine for defect detection of a backlight module (ie, BLU) includes a frame 800 and a fixture module 500, an automatic code reading module 700, and a dust removal module that are jointly installed on the frame 800 400, side light source lighting module 300, camera detection module and automatic optical detection module ...
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The invention discloses a multi-camera standard machine for defect detection of a backlight module, including a frame, a fixture module, an automatic code reading module, a side light source lighting module, a camera detection module, a dust removal module and an automatic optical detection module. The fixture module includes fixtures, crimping parts and cylinders; the automatic code reading module is used to read the barcode attached to the backlight module and transmits the information to the automatic optical detection module; the dust removal module is used to remove dust from the surface of the backlight module; The camera detection module includes a fine-tuning slide assembly and a camera. The camera shoots the backlight module and converts the obtained optical image into a digital signal and sends it to the automatic optical detection module. The automatic optical detection module analyzes and compares the saved standard image to realize the Defect detection of the backlight module and judging whether the backlight module is qualified. The invention improves the accuracy and efficiency of defect detection of the backlight module and the yield rate of the backlight module of the entire production line, and greatly reduces labor and time costs.
Description
technical field [0001] The invention belongs to the field of liquid crystal module backlight detection facilities, and more specifically relates to a multi-camera standard machine used for backlight module defect detection. Background technique [0002] The backlight module is one of the key components of the LCD panel. The function is to supply sufficient brightness and evenly distributed light source so that it can display images normally. Backlight modules have been widely used in various electronic products and modern information equipment such as personal digital assistants due to their advantages of light weight, thin thickness, and low power consumption. [0003] As digitalization and informatization become more and more obvious, backlight modules play an increasingly critical role, accompanied by fierce market competition, and users' requirements for the quality of backlight modules are also constantly improving, which prompts backlight Module manufacturers must pa...
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IPC IPC(8): G02F1/13
Inventor 易洁杜彪
Owner WUHAN JINGLI ELECTRONICS TECH