DEVICE DETECTING AUTOMATICALLY DEFECT OF BACKLIGHT UNIT USING IMAGE PROCESSING TECHNIQUES

摘要

The subject innovation can reduce the manufacturing cost by automatically inspect the defects of the backlight unit the whole to the inspection step down to the discharge from the input of the back light unit as a unit in which screen line (in-line) and simultaneously shortening the inspection time productivity one to improve, to a backlight unit of the automatic defect inspection apparatus using the image processing technique.; Automatic defect inspection of the backlight unit apparatus using the image processing technique according to the present invention, the fully assembled back light foreign matter on the unit, white spots, black spots, stains, a backlight unit that checks whether a variety of defects, such as scratches exist identifying bad whether in the automatic defect inspection device, and having an inlet and an outlet on each side, so as to be movable on the guide rail and the guide rail extending through the inlet, outlet, and the laboratory of the body, the body being laboratories are formed in the order installation is, and the lighting fixture that is light unit is mounted to the lighting in the upper portion, is provided in the laboratories of the main body, is provided in the laboratories of the camera and includes a main body for acquiring vertical image for line scanning of the light unit on the light fixture in the vertical, car for image pickup viewing angle of the light unit on the light fixture line scanning at a predetermined angle of inclination It mounted to La and the lower portion of the main body, image processing for by and at the same time each controlling the camera collectively process the image obtained by the camera detects a defect of the backlight unit and the control means and mounted to one side of the main picture checking that displays and outputs a defect of the backlight unit is detected by the processing and control means of the result output means; characterized in that it comprises a.