Automatic lighting fixture for liquid crystal screen

Abstract

The embodiment of the invention discloses an automatic lighting fixture for a liquid crystal screen. The automatic lighting fixture comprises a bottom plate, a liquid crystal screen bracket, a probe pressing block for fixing probes, two horizontal sliding guide rails, horizontal sliding seats, two perpendicular fixing plates, a cam structure and a U-shaped lifting support; the horizontal sliding guide rails are both located on the outer side of the edge, close to a lighting switch, in the liquid crystal screen bracket, and the length directions of the horizontal sliding guide rails are both perpendicular to the edge, close to the lighting switch, in the liquid crystal screen bracket; the horizontal sliding seats are arranged on the corresponding sliding guide rails and can move on the sliding guide rails; each perpendicular fixing plate is perpendicular to the corresponding horizontal sliding seat; the cam structure is fixedly arranged on the bottom plate, the U-shaped lifting support comprises two side plates and the bottom plate, one side plate is located above a cam of the cam structure and provided with a cam groove matched with the cam, the inner side face of the bottom plate is connected with vertical sliding guide rails arranged on the two perpendicular fixing plate in a sliding mode respectively, and the probe pressing block is arranged on the outer side face of the bottom plate. The automatic lighting fixture for the liquid crystal screen can effectively avoid a liquid crystal screen from colliding with the probes.

Description

technical field [0001] The invention relates to the technical field of liquid crystal detection, in particular to a liquid crystal screen automatic lighting fixture. Background technique [0002] After the LCD screen completes each production process, it is necessary to light up and detect whether there is a defect in the LCD screen. The specific detection method is that the finished liquid crystal screen is placed on the liquid crystal screen support, the probe connected to the power supply is connected with the lighting switch of the liquid crystal screen, and an image acquisition device is arranged above the liquid crystal screen. After the liquid crystal screen is turned on, the image acquisition device performs image acquisition on the liquid crystal screen. If the liquid crystal screen has poor lighting defects, the image formed by the defects in the image acquisition device will be bright or dark points, lines, color spots, etc. As long as dots, lines, and color spo...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an automatic lighting fixture for liquid crystal screens to solve the problem that the surface of the liquid crystal screen is easily scratched or the probe is easily damaged in the existing liquid crystal screen detection process, thereby greatly improving the detection efficiency of the liquid crystal screen

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