Liquid crystal display element

Abstract

Abstract PURPOSE:To observe characters, patterns, etc. near the peripheral part of a screen with clear contrast similar to the state of the center part by making the rubbing direction of electrodes formed on the inwall surfaces of substrates opposed to each other in parallel arcuate to expand a visual field angle. CONSTITUTION:Two transparent glass substrates obtained by covering electrodes 13, 14 with oriented films are opposed to each other in parellel on respective inwall surfaces and the rubbing direction of the electrodes 13, 14 of a liquid crystal display element formed by holding liquid crystals between the electrodes 13, 14 and adhering its periphery with adhesives is made arcuate to expand the visual field angle. Thus, orientation processing is applied to the front and back electrodes 13, 14 by the wiper type rubbing method and rubbing stripes F', F'', R', R'' are generated, so that the intersected angles theta, theta' are expanded and the visual field angle is also expanded. Consequently, the most observable position is turned to the observer on the TN type liquid crystal display element independ- ently of the display positions of characters, patterns, etc. For example, even such thin characters or patterns exceeding 20cm can thus be observed with uniform contrast.

Inventors

• 👤 Naomi Ishibashi
• 👤 石橋　尚美
• 👤 Hiroshi Tatsuta
• 👤 竜田　博
• 👤 Tsuyoshi Kamimura
• 👤 強 上村

Bibliographic Details