A Four-Domain In-Plane-Switcbing LCD

概要

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We have developed a 4-domain in-plane switching liquid crystal display (IPS-LCD) with a novel electrode structure, where data electrodes and common electrodes are perpendicular to each other. These two electrodes are formed in different layers isolated by a dielectric thin film, with larger tolerance to error of alignment between these two electrodes than conventional IPS-LCD. When a voltage difference is applied to the electrodes, liquid crystal molecules will re-orient in different directions due to the non-uniform distribution of the electric field. This results in a 4-domain LCD with vanishingly small color-shift for viewing angle over 60 degrees in the horizontal and vertical directions. The overlapping areas of these two electrodes form a part of storage capacitor for TFT-LCD application, which help to enlarge the aperture ratio. The test cell results will be demonstrated.
社団法人電子情報通信学会の論文
1999-03-19