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US 7,623,200 B2Granted
Polarizing plate, liquid crystal device, and electronic apparatus
AssigneeSeiko Epson Corporation
InventorsMasafumi Sakaguchi, Yoshitake Tateno
Life of this patent
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Abstract
The invention provides a polarizing plate used in a liquid crystal device. The polarizing plate according to an aspect of the invention includes: a polarizing film; and a first protection layer that has a predetermined first optical axis, wherein the first protection layer is disposed either directly or indirectly on one surface of the polarizing film with the first optical axis of the first protection layer being aligned in parallel with a transmission axis of the polarizing film.
Claims10
A liquid crystal device comprising:
- a liquid crystal layer;
- an incoming-light-side polarizing plate that is provided at the incoming-light side of the liquid crystal layer;
- and
- an outgoing-light-side polarizing plate that is provided at the outgoing-light side of the liquid crystal layer, the outgoing-light-side polarizing plate including a first polarizing film and a first protection layer that has a predetermined first optical axis,
- wherein the first protection layer is disposed at a side of the first polarizing film that is closer to the liquid crystal layer than an other side of the first polarizing film, the first optical axis of the first protection layer being aligned in parallel with a transmission axis of the first polarizing film,
- the liquid crystal layer includes liquid crystal molecules having negative anisotropy of dielectric constant, and
- the incoming-light-side polarizing plate and the outgoing-light-side polarizing plate are provided in such a manner that the transmission axis of the incoming-light-side polarizing plate and the transmission axis of the outgoing-light-side polarizing plate are orthogonal to each other.
4 more elements
Dependencies are inferred from the claim text.