SID Symposium Digest of Technical Papers · 2005 · 18 citations · 6 references
Abstract Moving image quality has been the Achilles' heel of TFT‐LCDs. The switching speed of liquid crystals has been improved constantly, so that we now have reached to a point where further improvement does not translate into real image quality gain: LCDs are facing the final hurdle as a hold‐type display. Two ways were proposed to overcome the problem. One is to introduce impulsive transmission and the other is to increase the refresh rate. The first approach was commercialized, with limited success. The second approach has been emulated with a high refresh‐rate CRT. For the first time, we report a 40″ LCD‐TV refreshed at 120 Hz. The higher refresh rate led to 25% reduction in the on + off response time and 50% reduction in the intergray response time. There was substantial video quality improvement as well as the nominal enhancement: images sweeping the whole screen horizontally in two seconds showed little deterioration in details.
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