Patent ID: 8154654

Claim:
A frame interpolation device comprising: a detecting section which receives a frame signal of one of 50 Hz and 60 Hz and detects whether the frame signal is a pull-down signal, first generation section for generating a first frame signal of one of 100 Hz and 120 Hz by use of a first insertion pattern based on the frame signal of one of 50 Hz and 60 Hz, second generation section for generating a second frame signal of one of 100 Hz and 120 Hz by use of a second insertion pattern based on the frame signal of one of 50 Hz and 60 Hz, and a selecting section which outputs the first frame signal received from the first generation section when the frame signal is not a pull-down signal and outputs the second frame signal from the second generation section when the frame signal is a pull-down signal, wherein the second generation section generates the frames of 120 Hz as “A”, “A”, “A”, “AB”, “AB”, “B”, “B”, “B”, “BC”, “BC”, “C”, “C”, “C” . . . when the frames of the 2-3 pull-down signal of 60 Hz are given as “A”, “A”, “B”, “B”, “B”, “C”, “C” . . . and wherein “AB” indicates an interpolation frame formed based on frames A and B, and “BC” indicates an interpolation frame formed based on frames B and C.