Patent ID: 8446529

Claim:
An image display apparatus capable of receiving a first video signal and image data that is not a video signal, the apparatus comprising: a displaying part configured to display an image; a first electronic zoom processing part configured to perform first electronic zoom processing on the first video signal to output a first electronic zoom processed video signal of a predetermined resolution, the first electronic zoom processed video signal of the predetermined resolution being a video signal having a predetermined resolution that is lower than that of the first video signal and corresponds to a display resolution of the displaying part; a video converting part configured to convert the image data into a second video signal having a same resolution as that of the image data; a second electronic zoom processing part configured to perform second electronic zoom processing on the second video signal from the video converting part to output a second electronic zoom processed video signal of the predetermined resolution, the second electronic zoom processed video signal of the predetermined resolution being a signal having the predetermined resolution that is lower than that of the first video signal and corresponds to the display resolution of the displaying part; an operating part configured to select a signal to be input to the image display apparatus from the first video signal or the image data, and a controller configured to, when the image data is selected by the operating part as the signal which is input to the image display apparatus, perform a control so as to switch a signal route so that the image data passes through, in order, the video converting part and the second electronic zoom processing part, and then is input to the first electronic zoom processing part, and to input the second electronic zoom processed video signal output from the second electronic zoom processing part to the displaying part through the first electronic zoom processing part without being subjected to the first electronic zoom processing, wherein the displaying part is configured to display an image corresponding to each of the first electronic zoom processed video signal output from the first electronic zoom processing part and the second electronic zoom processed video signal output from the second electronic zoom processing part, and wherein each of the first and second electronic zoom processing is a process to enlarge partial area of an image that the image display apparatus displays without changing a displaying screen size.