Norio Koma

P‐28: Color Field Sequential LCD Using an OCB‐TFT‐LCD

Lately a color field sequential LCD is widely noticed because it requires no micro-color-filter. To realize the color field sequential LCD in the direct view type, we adopted an OCB mode which can be obtained fast response and uniform alignment in large area, and a low-temperature p-Si TFT which can be possible scanning high speed and fabrication large size. Further, we optimize the driving method, and obtain good display condition in a trial-fabrication of 4 inches size color field sequential LCD.

A new field-sequential-color LCD without moving-object color break-up

Abstract— A new display method for field-sequential-color liquid-crystal displays (FS-LCDs) that reduces the negative effects of color break-up associated with moving objects has been developed. The method is called Adjustment of Color Element on the Eyes (ACE), and it relies on the position on the eyes of RGB color sub-images. It was confirmed that color break-up also does not occur for peripheral objects when using ACE.

L-4: Late-News Paper: A Novel Display Method for Field Sequential Color LCD without Color Break-up

We have developed a novel display method for field sequential color LCD without color break up, which we call Adjustment of Color Element on the Eyes (ACE). In this method, the RGB color sub-images of motional image dispose on the eyes.

A novel driving method for field sequential color using an OCB TFT-LCD

We report a new technique for the design of field-sequential-color liquid-crystal displays (FS-LCDs), which maximizes the liquid-crystal response, t LC , by dividing the display area into as few sub-areas, N, as possible. We obtained the following results: (1) t LC increased as Nincreased, although saturation tended to occur. Increasing Nfrom 1 to 2 gave the largest increase in t LC . (2) t LC was maximized by dividing the display area unequally.

44.2: Novel Front‐light System Using Fine‐pitch Patterned OLED

We have developed a novel front-light system that uses an organic light emitting diode (OLED) light source patterned with a fine pitch. The front-light system has the following characteristics: 1. Excellent uniformity within the light emitting area; 2. Emittance that is consistent at all viewing angles; 3. No light leakage at any viewing angle from the side of the observer. This system can be adopted for reflective LCDs, electrophoretic displays (EPD), microelectromechanical systems (MEMS) and other applications.

17.2: A Fast‐Switching LCD for Color‐Field‐Sequential Projection Displays

We propose a novel fast-switching LCD panel for color field sequential projection. This panel employs a layer of OCB (optical compensated bend) mode liquid crystal that is maintained at an elevated temperature by a built-in ITO (indium tin oxide) heater and a thermal sensor. We call this method heated-OCB. The heated-OCB realizes a response time of less than 0.4 msec, and provides color field sequential projection with 2 or 3 times driving and small color break-up.

31.5L: Late-News Paper: Development of a Combined Liquid Crystal and Fine Pitch Light Source Display (LFD)

We propose a novel display system that we call an LFD (combined liquid crystal and fine pitch light source display). In an LFD, an auxiliary light source patterned with a fine pitch is attached to a reflective liquid crystal display (LCD), and a light shield is formed on the observers side of the light source. A vertical alignment LCD (VA-LCD) is attached as the reflective LCD, and an organic light-emitting diode (OLED) is attached as the fine pitch light source. An LFD can produce bright, high-contrast images under any ambient light. We built a test sample and confirmed its display characteristics.