Patent ID: 7830401

Claim:
An information processing apparatus having an internal display device that displays video/image information and an output terminal for connection with at least one external display device or more, comprising: a display condition information acquisition section that respectively acquires display condition information including a resolution and an aspect ratio from EDID information stored in the internal display device and the external display device, wherein: when an optimum resolution information that is most appropriate resolution from among resolutions is included in the EDID information, the display condition information acquisition section acquires the aspect ratio from a ratio of a vertical resolution to a horizontal resolution in the optimum resolution; and, when the optimum resolution information is not present, the display condition information acquisition section acquires the aspect ratio from sizes of the internal display device and the external display device included in the EDID information; a resolution comparison section that compares the resolutions of the internal display device and the external display device and acquires a display resolution at which the video/image information is displayed; an aspect ratio comparison section that compares the aspect ratios of the internal display device and the external display device acquired by the display condition information acquisition section and acquires information about differences among the aspect ratios; and a display adjustment section that changes the resolutions of the internal display device and the external display device to the display resolution based on the display resolution acquired by the resolution comparison section and that further adjusts, when the aspect ratios of the internal display device and the external display device differ, display timings of the internal display device and the external display device whose resolution have been changed, based on information about the differences among the aspect ratios acquired by the aspect ratio comparison section.