KR960002420A - Panel inspection device of cathode ray tube - Google Patents

Abstract

The present invention relates to an inspection apparatus for inspecting an outer surface of a panel. To this end, the present invention, in the panel inspection apparatus of the cathode ray tube for inspecting the defect of the panel, the first transport means for transporting the panel supported by the frame, and is installed so as to be continuous with the first transport means spaced apart from each other by a predetermined interval Panels for inspecting the panel passing through the second and third transfer means, the electrostatic removal means installed on the upper and lower portions of the first transfer means to remove static electricity and foreign matter, and the upper and lower portions between the second and third transfer means. The inspection means provides an advantage of automatically detecting a defect that may occur in the manufacturing process of the panel, an advantage of improving the reliability of the inspection, and an advantage of shortening the inspection time.

Description

Panel inspection device of cathode ray tube

As this is a public information case, the full text was not included.

6 is a perspective view showing a panel inspection apparatus of a cathode ray tube according to the present invention,

FIG. 7 is an excerpt detail showing an extract of the panel inspection unit from FIG.

8 is a configuration diagram showing a defect recognition unit of the panel according to the present invention,

10 is a block diagram of a control device associated with the inspection device of the present invention.

Claims (12)

A panel inspection apparatus of a cathode ray tube for inspecting a defect of a panel, the apparatus comprising: a first conveying means supported by a frame and conveying a panel; and second and third conveying means arranged to be continuous with the first conveying means and spaced apart from each other by a predetermined interval; And an electrostatic eliminating means installed at upper and lower portions of the first conveying means to remove static electricity and foreign substances, and a panel provided at upper and lower portions between the second and third conveying means and inspecting the panel passing through the electro-optic line image. A panel inspection apparatus for a cathode ray tube, characterized in that provided with an inspection means. The panel inspection apparatus of a cathode ray tube according to claim 1, wherein the first conveying means is a roller conveyor. The panel inspection apparatus according to claim 1, wherein the static electricity removing means includes a pneumatic nozzle provided at upper and lower portions of the first conveyor, and ion generating means fixed to an end of the pneumatic nozzle. 4. A panel inspection apparatus for a cathode ray tube according to claim 3, wherein said ion generating means comprises an ion electrode provided at an end of the nozzle. The panel inspection apparatus of a cathode ray tube according to claim 1, wherein the second and third conveyors are belt conveyors. The panel inspecting apparatus according to any one of claims 1, 2, 3, and 5, wherein the panel inspecting means comprises a camera and a light source respectively installed in the vertical upper and lower portions between the second and third conveyors. The panel inspection apparatus according to claim 1, wherein the second and third transfer means are simultaneously driven by one motor. The apparatus for inspecting a cathode ray tube according to claim 1, wherein a sensing sensor for sensing the transfer of the panel and outputting a sensing signal to the panel inspecting means is provided in the second conveying means. In a panel inspection correction method of a cathode ray tube for correcting an inspection error due to a curvature of a panel in inspecting a defect of a panel, the inspection line of the panel divided into a plurality of lines is imaged by a camera equipped with an imaging device. Obtaining a real image including the curvature of the panel and the small noise signal, filtering the real image to remove the small noise signal included in the real image, and obtaining the test image from the panel; And performing a logic operation on the reference image including the reference curvature to binarize only the bonds present in the panel, and encoding the binarized defects to appear in the position and size of the bond. How to calibrate the panel inspection. 10. The method of claim 9, wherein the steps are repeated until all inspection lines of the panel are inspected. 10. The method of claim 9, wherein the actual image is obtained while the panel is being transported. 10. The method of claim 9, wherein the logical operation is a subtraction operation. ※ Note: The disclosure is based on the initial application.