Geometric distortion measurement method and device on cathode ray tube monitor

摘要

The present invention relates to a method for measuring geometric distortion on a monitor of a cathode ray tube and an apparatus for measuring the distortion, and by using an optical sensor that is relatively inexpensive and has a small amount of data compared to a camera, the measurement time is fast, inexpensive, and accurate distortion is accurately determined. It is possible. In the present invention, a plurality of optical sensors are arranged on the front of the monitor, and a signal corresponding to a predetermined input pattern is input and displayed on the monitor. Compared with the present invention, there is provided a method and apparatus for measuring geometric distortion on a monitor, the method including determining a degree of distortion of a display pattern.