| 摘要 |
PURPOSE:To improve color reproducibility even in the composition with a computer display by coverting gamma-corrected video information of a television and a video into video signal being coincident with the brightness characteristic of liquid crystal before a color correction circuit is composited with the computer display. CONSTITUTION:A color deciding circuit 53 comparates computer display information read-out from a display memory 51 for displaying information with a specified color set in the device and when the information is coincident with the set color, switches a switch-over circuit 56 to the side of video display signal 591. Thus, a synchronizing composite signal which is color-corrected is outputted on the set specified color and the output is inputted to a liquid crystal module 57. Then, when the information are other than the specified color, a computer display signal 590 outputted from a D/A converter 52 is outputted from the switch-over circuit 56 and the output is inputted to the liquid crystal module. At this time, the color correction circuit 55 so converts the inputted video signals that the same brightness as the brightness of a Braun-tube is obtained in the liquid crystal display. |
