Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1998-02-25
2000-06-06
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349 86, 349 93, 349183, G02F 11335, G02F 11333, C09K 1902
Patent
active
060725532
ABSTRACT:
A liquid crystal element is equipped with at least one polarizer provided on a light entering side thereof, an insulating substrate on which transparent electrodes, a light reflecting member having a light reflecting surface on one side thereof, and a liquid crystal layer sealed between the insulating substrate and the reflecting member, in which liquid crystal molecules and liquid-crystalline polymers are both twist-aligned through a same angle. In the case of a dark display, incident light linearly polarized enters the liquid crystal layer, becoming circularly polarized light at the reflection surface, and after being reflected, when outgoing, the light becomes a linearly polarized light having a plane of polarization rotated through an angle of 90.degree. as compared with that of the incident light. On the other hand, in the case of a bright display, the incident light linearly polarized enters, and when outgoing, it has become diffused light, resulting from that only polarized light components identical to the incident light passed through the element. Thus, by applying a new LCD mode in which the absorption state and the diffusion state are controlled by application of a voltage, a reflection-type LCD device with high colorfulness and display performance, which does not cause a parallax, can be provided.
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Mitsui Seiichi
Okamoto Masayuki
Ueki Shun
Chowdhury Tarifur R.
Conlin David G.
Neuner George W.
Sharp Kabushiki Kaisha
Sikes William L.
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