Electro-optical device and electronic apparatus selectively...

Details Electro-optical device and electronic apparatus selectively... Electro-optical device and electronic apparatus selectively...

2011-08-09

2011-08-09

Robinson, Mark A (Department: 2883)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S098000, C349S099000

Reexamination Certificate

active

07995179

ABSTRACT:
An electro-optical device includes, a first substrate, a second substrate, an electrooptic material layer, an illuminating device, and a polarizing device. The electrooptic material layer is held between the first substrate and the second substrate. The illuminating device irradiates illumination light to an outer surface of the first substrate. The polarizing device is provided on the outer surface of the first substrate. The electrooptic material layer exhibits optical isotropy when no electric field is applied, and, when an electric field is applied, exhibits optical anisotropy corresponding to the magnitude of the electric field. The electrooptic material layer further has a characteristic to selectively reflect a first circularly polarized light having a first rotation direction. Light that passes through the polarizing device is a second circularly polarized light that has a second rotation direction reverse to the first rotation direction of the first circularly polarized light.

REFERENCES:
patent: 4818076 (1989-04-01), Heppke et al.
patent: 2005/0185105 (2005-08-01), Miyachi et al.
patent: 2000-275605 (2000-10-01), None

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