Yoneharu Takubo

A 23-in. UXGA-wide advanced IPS TFT-LCD with new driving method

Abstract A new 23-in. diagonal in-plane-switching (IPS) mode TFT-LCD with H1920×V1200 pixels has been developed. This TFT-LCD, which is a new structure with zigzag shaped pixels, has been adopted as an advanced IPS technology. Using this structure, the aperture ratio becomes 25% larger than that of conventional liquid crystal displays (LCDs). Furthermore, uniform image quality has been obtained by using the new dual-line driving method where the design has optimized storage-capacitance for each pixel.

Electric and Optical Properties of PLZT Ceramic Shutter Array

This paper is concerned with a light-shutter array of PLZT transparent ceramics utilizing newly-developed electrode structure. Relationships between shutter characteristics and electrostrictive effect of the PLZT are investigated. The electrode structure plays significant roles on the reliability of the shutter characteristics. Thus, by introducing a double layer electrode structure coated with resin, the highly stable light-shutter array is obtained to a long time drive. Furthermore, small temperature dependent shutter array can be also realized by controlling each width of the electrode and light-shutter aperture.