DEVICE DETECTING AUTOMATICALLY DEFECT OF BACKLIGHT UNIT USING IMAGE PROCESSING TECHNIQUES

摘要

The invention productivity, reduce manufacturing costs and at the same time Sikkim reduce scan time by automatically inspect the defects of the backlight unit as a unit in which screen the entire inspection process line (in-line) up to the discharge from the input of the back-light unit one to improve, the present invention relates to automatic defect inspection apparatus of a backlight unit using the image processing technology. ; Automatic defect inspection apparatus of a backlight unit using the image processing technique according to the present invention, a backlight unit that checks whether the various defect such as foreign matters on the back light unit fully assembled, white spots, black spots, stains, scratches determine whether defective in the automatic defect inspection device, and having an inlet on both sides and an outlet, so as to be movable on the guide rail and the guide rail extending through the inlet, outlet, and laboratories of the body, the body being laboratories are formed inside the turn is installed, is installed in the upper laboratory of the lighting fixture, a body that is a backlight unit mounted to light up in, and installation and for obtaining the vertical video camera to a vertical line scanning backlight units in a lighting fixture, in the laboratories of the body, the light unit on the light fixture with a given line scanning view angle video camera for acquisition of the tilt angle, is provided at the lower part of the body, the handle obtained by the same time and controlling the camera, each box camera image comprehensively defect of the backlight unit by characterized in that is including; an image processing and controlling the detection means, installed on one side of the main body and the display defect of the backlight unit is detected by the image processing and controlling means, and output means for outputting test results to. ; A back light unit, the main body, the guide rails, light fixtures, for obtaining the vertical video camera, the camera field of view for image capture, image processing and controlling means, the test result output means