| 摘要 |
There are included a communication unit, a resolution adjustment unit, a storage unit, a video signal output unit, and a resolution information correction unit. The communication unit requests an image display device that displays an image to transmit first resolution information specifying the resolutions at which the image display device can perform output, and receives the first resolution information. The resolution adjustment unit adjusts the resolution when outputting a video signal outputted to the image display device. The image display device and the display output device conform to a standard for transmission and reception of video signals at one predetermined resolution or more which are determined in advance. The storage unit stores the first resolution information. If the predetermined resolution determined by the standard is not included in the received first resolution information, the resolution information correction unit appends the predetermined resolution determined by the standard to the first resolution information, which it stores in the storage unit.
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