| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a user from feeling unpleasantness by preventing the deterioration of image quality caused by the execution of double correction processing without significantly changing an existing system. <P>SOLUTION: In a video signal processing system provided with a video signal output device and a video display device, the video signal output device includes a gradation correction processing part 108 for executing gradation correction processing to a video signal, an HDMI transmitter processing part 112 for acquiring from the video display device correction information showing the validity or invalidity of gradation correction processing to be executed in an external video display device, and a video correction switching part 501 for invalidating gradation correction processing of an output device when correction information is valid, and validating the gradation correction processing of the output device when the correction information is invalid, and the video display device includes a gradation correction processing part 309 for executing gradation correction processing to the video signal, a storage device 408 for storing the correction information, and an HDMI receiver processing part 305 to output the correction information to an external video signal output device. <P>COPYRIGHT: (C)2009,JPO&INPIT |
