TEST AND ALIGNMENT SYSTEM FOR ELECTRONIC DISPLAY DEVICES ANDTEST FIXTURE FOR SAME

摘要

A test and alignment system (10) for an electronic display device (12) comprises a test pattern generator (26) to be connected to an electronic display device for causing images of video test patterns to be displayed by the electronic display device. A test fixture (14) is positioned in front of the electronic display device to be tested and aligned. The test fixture includes a frame (50) supporting a plurality of close-up optical sensors (54) to sense and produce image signals corresponding to small areas of images displayed on the electronic display device and a plurality of wide-angle optical sensors (58) behind the close-up optical sensors for sensing and producing image signals corresponding to large areas of images displayed on the electronic display device. A computer (20) controls the test pattern generator and processes and analyses the image signals generated by the closeup and wide-angle optical sensors to perform a series of tests on the electronic display device. A display (24) provides a visual indication of the results of the series of tests performed by the computer.