A novel driving scheme that enables displaying motion-pictures on LCDs is proposed, and a prototype LCD has successfully been demonstrated with a fast response LC cell. In this driving scheme, scanning black stripes are inserted in displayed images so that impulsive emission like that of CRTs can be produced. It is found that the LCD has a markedly improved motion-image quality compared with conventional LCDs.

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A low‐power 262k‐color SOG (System‐On‐Glass) LCD has been developed for mobile applications. It is integrated with a DC‐DC converter and driver circuits that contain 6‐ bit DACs, and it consumes less than 5 mW in operations with a single voltage power supply of 2.5 V.

We have performed a novel motion picture simulation that can reproduce the perception of moving images on a screen of hold‐type displays as still images. It can be used to evaluate motion picture quality quantitatively and to help improve the quality through optimization of the values of relevant parameters in hold‐type displays like liquid crystal displays.

We have developed a back-channel-oxidized thin-film transistor (TFT) structure which does not require the conventional etching of the n+-a-Si:H layer from the channel region. Key processes in the fabrication of this structure are the deposition of a very thin (less than 10 nm) n+-a-Si:H layer with low resistivity (∼50 Ω cm), and an oxygen plasma treatment to change the n+-a-Si:H layer above the channel region into dielectric oxide. With a thin (∼50 nm) a-Si:H layer, the back-channel-oxidized TFT structure makes it possible to obtain much better “ON” characteristics than are obtained with conventional channel-etched TFTs. To gain insight into the underlying physical mechanism we investigated the back-channel electrical characteristics of both types of TFTs as a function of temperature, and found that back-channel-oxidized TFTs had much better back-channel characteristics than channel-etched TFTs, which is due to a lower density of back-channel interface states.

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Abstract— We have developed an integrated poly‐Si TFT current data driver with a data‐line pre‐charge function for active‐matrix organic light‐emitting diode (AMOLED) displays. The current data driver is capable of outputting highly accurate (±0.8%) current determined by 6‐bit digital input data. A novel current‐programming approach employing a data‐line pre‐charge function helps achieve accurate current programming at low brightness. A 1.9‐in. 120 × 136‐pixel AMOLED display using these circuits was demonstrated.

A parallel digital-data-driver architecture has been developed to reduce power consumption in low-temperature poly-Si TFT-LCDs. It features low-power 3V-interface level shifters and 198 serial/parallel converters driven in parallel at a clock frequency of 62.5 kHz. Total power consumption in a 2. 4-in., 41K(176 x 234)-pixel TFT-LCD with integrated 6b DACs is 12 mW at a 30-Hz frame frequency.