Analysis of Light Leakage in Liquid-Crystal Devices with In-Plane Switching Electrodes

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概要

• 論文の詳細を見る

• To realize wider viewing angle for a liquid-crystal display (LCD), particular attention is being paid to the in-plane switching (IPS) mode of LCD, where pixel electrodes and common (opposite) electrodes are arranged on the same array substrate and liquid crystal is made respond by an electric field generated in parallel to the substrate. So far, two types of array electrode structures are proposed in IPS-LCD. One is the array structure with two electrode layers where pixel electrodes and common electrodes are formed on different conductive layers. In the other array structure they are formed on one conductive layer. Although both electrode structures of IPS-LCD have problems dependent on the process conditions, light leakage observed only in the former structure along the edge of the common electrodes at zero bias is an essentially serious problem. By studying light wave propagation in the IPS-LCD using a two-dimensional finite-difference time-domain method we have found that the light leakage is caused by the tapered side surfaces of the common electrodes.

• 2004-12-01

著者

• Miyoshi T

  Graduate School Of Science And Technology Kobe University

• KAWANO Hideo

  Graduate School of Science and Technology, Kobe University

• MATSUMOTO Atsushi

  Graduate School of Science and Technology, Kobe University

• MIYOSHI Tanroku

  Graduate School of Science and Technology, Kobe University

• HIRANO Johji

  Graduate School of Science and Technology, Kobe University

• Hirano Johji

  Graduate School Of Science And Technology Kobe University

• Matsumoto Atsushi

  Graduate School Of Science And Technology Kobe University

• Kawano H

  Graduate School Of Science And Technology Kobe University

• Miyoshi Johji

  Graduate School of Science and Technology, Kobe University

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