Patent ID: 8325272
Filing Date: 2012-12-04
Classification: G09G,H04N

Abstract:
1. An image displaying device having a rate converting portion that interpolates an image signal to which a motion compensation processing has been applied between frames or fields of an input image signal to convert and output the number of frames or fields of the input image signal to a display panel, further comprising a determining portion that determines whether the input image signal is an image signal to which pulldown conversion has been performed, wherein when the determining portion determines that the input image signal is an image signal to which pulldown conversion has been performed, image interpolation by the motion compensation processing is not performed by the rate converting portion, wherein the rate converting portion includes a portion that generates an interpolation image signal to which a motion compensation processing has been applied based on motion vector information between consecutive frames or fields included in the input image signal, and when the input image signal is determined to be an image signal to which pulldown conversion has been performed, a motion compensation processing in the interpolation image signal generating portion is made ineffective, wherein the rate converting portion includes: a motion vector detecting portion that detects motion vector information between consecutive frames or fields included in the input image signal; an interpolating vector allocating portion that allocates an interpolating vector between the frames or the fields based on the detected motion vector information; an interpolation image generating portion that generates an interpolation image signal from the input image signal, using the allocated interpolating vector; and an image interpolating portion that interpolates the generated interpolation image signal between the frames or the fields.