Patent ID: 8780266

Claim:
A video display device comprising: one or more processors; one or a plurality of input paths into which a video stream is input; an inter-field scanning line interpolating unit which superimposes scanning line data of previous and next fields of interlacing image data in the video stream input from an input path among the plurality of input paths, at least two of the input paths being configured to be connected to a different type of device to perform inter-field scanning line interpolation, and which generates progressive image data corresponding to the video stream; a determining unit which determines whether or not a reliability of the video stream meets a predetermined level based on the type of the device to which the input path is configured to be connected; and a selecting unit which selects image data having undergone interpolation by the inter-field scanning line interpolating unit as an image to be displayed when the determining unit determines that the reliability of the video stream does not meet the predetermined level based on the type of the device to which the input path is configured to be connected and when the progressive image data is determined to be a still image, the determining unit determining that the reliability of the video stream does not meet the predetermined level when the input path into which the video stream is input is a particular input path, the particular input path having a fixed configuration to receive the image data from a particular type of device, wherein the one or more processors are configured to cause one or more of the interpolating unit, the determining unit and the selecting unit to superimpose the scanning line data, determine whether the reliability meets the predetermined level, and select the image data, respectively.