Double-speed 120-Hz frame rate conversion technology makes it possible to display pictures at 120 frames per second, double the number of pictures (image signals) sent from the TV broadcast station. This technology enables viewers to enjoy smooth images with superior clarity and a minimum of motion artifacts (blurriness, judder, etc.), even in live broadcasts of sports events with lots of fast-motion camera work. Sharp developed the Double-Speed Advanced Super View LCD Panel that uses this technology, and achieved the world’s first 120-Hz frame rate conversion in a full-spec HD TV.

Normally, in a TV broadcast, 60 pictures are transmitted each second, and by displaying them continuously in rapid succession, they appear to the eye as a moving image. The more pictures displayed per second, the smoother the video image will appear. Sharp’s 120-Hz Double-Speed Advanced Super View LCD Panel creates a new intermediate image and inserts it between the pictures transmitted via the broadcast signal (double-frame data interpolation), and thus images are displayed at a rate of 120 frames per second.

Three frames are shown numbered 1, 2, and 3. When frame 1 is displayed on the screen, frame 3 has already been received. Using a proprietary Sharp algorithm, a programming process, frame 2 is generated as an intermediate image (interpolated) and inserted between the original frames 1 and 3. As a result, pictures are displayed at 120 frames per second.