Driver circuit including test pattern generation circuit in liquid crystal display device

摘要

the driving circuit of the liquid crystal display device , the normal mode circuit , the test pattern generating circuit , the selection circuit , and timing and a controller . Normal mode Normal mode circuit generates a signal related to the normal image data writing operation of the liquid crystal display device . Test pattern generating circuit generates a test mode signal associated with the test image data writing operation of the liquid crystal display device . Selection circuit selects one of a normal mode and a test mode signal and the output signal . The timing controller includes a memory in response to the output signal of the selection circuit which stores the image data constituting the display image is the normal image pattern or a test pattern on a liquid crystal display panel of the liquid crystal display device .