Patent ID: 8963966
Filing Date: 2015-02-24
Classification: G09G,H04N

Abstract:
1. A display driver circuit comprising: interpolation frame generation means for generating, on a basis of an image of a previous frame and an image of a subsequent frame, an interpolation frame to be inserted in 1 frame period; and tone transition emphasis process means for setting an output gradation of a current frame on a basis of an input gradation of the current frame and a display gradation of the previous frame, the display driver circuit driving a liquid crystal display panel so that display corresponding to the output gradation is carried out, the interpolation frame generation means having (i) a first generation mode of generating, on a basis of an image of a key frame corresponding to a video signal, an interpolation frame so that a position of an object is estimated on a basis of a calculated motion vector and the position of the object is changed with passage of time and (ii) a second generation mode of generating an interpolation frame which is not the interpolation frame based on the calculated motion vector and has an intermediate gradation, the interpolation frame being generated on a basis of the image of the key frame, so that a display gradation of the object is changed with passage of time, and the tone transition emphasis process means causing an emphasis level in a tone transition for the interpolation frame generated according to the second generation mode to be higher than an emphasis level in a tone transition for the key frame.