A new low-image-lag drive method for large-size LCTVs

— A new low-image-lag drive method is proposed for large-size LCTVs, taking into account the input signal and inter-field differential signal dependence of the response time. It was shown that the gray-level response time was 30–60 ms, which is 2–3 times as long as the ON-OFF bi-level response time, and was expressed as a linear function of the input voltage. With the new level adaptive overdrive (LAO) method, the response time was reduced to 17 ms, which is about one-half to one-third that of the conventional method and is satisfactory for TV applications. A 10.4-in. panel has been used to verify the effect of LAO on image quality. Moving images have been clearly observed using the LAO method.