An image acquisition device for backlight aoi detection

Abstract

The invention discloses an image acquisition device for AOI detection of a backlight panel, which comprises a main body box. The inner wall of the main body box near the bottom is rotated by a pin shaft and installed with two first rotating rods. The two first rotating rods An assembly mechanism for fixing the backlight board is connected between them. The inner wall of the body box near the top is fixed with a second collection head for collecting different deflection angles of the backlight board. The side wall of the chain is fixedly connected with a movable block. The movable block is limited and slides in the groove, and the groove is opened on the first rotating rod, and the outer wall of the body box is fixedly installed with a motor to rotate one of the sprockets. The present invention can collect images when the first rotating rod is at different deflection angles through the setting of the second collecting head, effectively avoiding the existence of objective factors such as light reflection during backlight board detection, thereby improving the accuracy of detection.

Description

technical field [0001] The invention relates to the technical field of backlight board detection, in particular to an image acquisition device for backlight board AOI detection. Background technique [0002] The backlight is a light source device used to ensure the light behind the liquid crystal display. Its function is to supply sufficient brightness and evenly distributed light sources to enable it to display images normally. Feature detection, detecting whether there are defects such as dark spots, dark shadows, bright spots, etc., to judge whether the product is qualified and ensure product quality. The existing image acquisition equipment for AOI inspection of backlight panels, during the inspection process, the backlight itself is relatively fixed. The existence of objective factors such as , may affect the detection accuracy. Contents of the invention [0003] The object of the present invention is to provide an image acquisition device for AOI detection of backli...

AI Technical Summary

Problems solved by technology

[0002] The backlight is a light source device used to ensure that the back of the LCD screen emits light. Its function is to supply sufficient brightness and uniformly distributed light source so that it can display images normally. Feature detection, detecting whether there are defects such as dark spots, dark shadows, bright spots, etc., to judge whether the product is qualified and ensure product quality. The existing image acquisition equipment for AOI inspection of backlight panels, during the inspection process, the backlight itself is relatively fixed. The existence of objective factors such as, may affect the detection accuracy

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