A capacitive-type touch-panel-embedded IPS-LCD is realized by a novel parasitic current reduction technique (PCR). The PCR removes 90% of the current flowing through the parasitic capacitance on a capacitive sensor (ITO layer) formed on a color filter substrate. Since the IPS-LCD has the same structure as commercial products, it features no reduction in aperture ratio.

We propose an electrostatic tactile display, which presents regional stimulation. The 240-Hz electrostatic force is generated by the beat phenomenon in a region where excited X electrodes cross excited Y electrodes, which presents tactile sensation to users. This display can accommodate multi-touch tactile interaction with visual information.Author Keywords tactile display; electrostatic; beat phenomenon; multi touch; user experience; human-computer interaction; human-display interaction.

SUMMARYWe present an electrostatic tactile display for stimulus localization. The 240-Hz electrostatic force was generated by the beat phenomenon in a region where excited X electrodes cross excited Y electrodes, which presents localized tactile sensation out of the entire surface. A 10.4-in. visual-tactile integrated display was successfully demonstrated. key words: tactile display, electrostatic force, beat phenomenon, multi touch, user experience

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An SOG-LCD with integrated 230kb DRAM frame memory has been demonstrated. To achieve this dense integration, a memory system architecture for horizontal stripe was developed. Memory tests proved a 1MHz operation and retention time of 166ms. Fine images are displayed both in still images and moving pictures.