Yozo Narutaki

53.3: New Color Filter Structures for Transflective TFT - LCD

We have developed the novel color filter structure suitable for our transflective ‘Advanced TFT-LCD’. In this paper, characteristics of the CF and display performance of improved ‘Advanced TFT-LCD’ with high display-quality are discussed.

Development of “Advanced TFT‐LCD” with good legibility under any ambient light intensity

— A new LCD referred to as an “Advanced TFT-LCD” has been developed. It consists of both transmissive and reflective electrodes in every pixel. Its subjective legibility and characteristics, such as contrast ratio, color gamut, and luminance, have been investigated at several ambient illumination intensities. As a result, it was confirmed that Advanced TFT-LCDs offer better legibility than transmissive LCDs under any ambient illumination intensity.

35.4: Novel Transflective LCD with Micro-lens Array to Double the Brightness

A Novel transflective LCD has been developed with introducing a microlens array and a highly collimated backlight system. This new technology provides excellent visibility both outdoors and indoors without increasing power consumption of backlight.

Layer Tilt Angle of Chevron Structure in Surface-Stabilized Ferroelectric Liquid Crystals

Smectic layer structures of some surface-stabilized ferroelectric liquid crystal cells were studied using high-resolution X-ray analysis. The cells were constructed of two glass plates coated with a polymer aligning film rubbed in parallel and exhibited a typical chevron layer structure. The correlation between the layer tilt angle and the molecular tilt angle was investigated in detail, taking into account the differences between the molecular tilt and apparent tilt angles. It was confirmed that the layer tilt angle correlated with the molecular tilt angle though it was slightly smaller, and the ratio of the layer tilt angle to the molecular tilt angle gradually decreased as the molecular tilt angle increased.

28.5L: Late-News Paper: A Novel Non-Emissive Display with Enormous Contrast Ratio and Viewing-Angle Free

We have developed a transmissive type of electrowetting display driven by passive matrix. The novel display shows high image quality because it provides high contrast ratio 60,000:1 at display normal direction and wide viewing angle character (CR 20,000 at±70 degree). As the display has a memory characteristic, it also exhibits a feature of low power consumption.