Liquid Crystal Display Device
First Claim
1. A liquid crystal display device which is operated in a circularly polarized light mode, comprising:
- a liquid crystal display panel including a first substrate on an observer side, a second substrate on a backside, and a liquid crystal layer sandwiched between the first and second substrates; and
a protection plate which is provided on a front surface of the liquid crystal display panel via a space,wherein the protection plate includes a first optical member whose optical conditions are set such that incident light from the observer side becomes elliptically polarized light after passing through the protection plate and the first optical member, the elliptically polarized light being incident on the liquid crystal layer.
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Accused Products
Abstract
The inventive liquid crystal device is driven in circular polarization mode. A protection plate (22) is provided with a first optical member where a first polarizing plate (23) and a first wave plate (24) are laid in layers sequentially in the order of the first phase difference plate and the first polarizing plate from the side close to a liquid crystal display panel. Optical conditions of the first optical member are designed such that the incident light from the observer side becomes elliptically polarized light having an ellipticity of 0.4-1.0 when it passed through the protection plate and the first optical member and the elliptically polarized light impinges on the liquid crystal layer. Consequently, surface reflection on each substrate and film in the liquid crystal display can be reduced effectively.
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Citations
13 Claims
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1. A liquid crystal display device which is operated in a circularly polarized light mode, comprising:
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a liquid crystal display panel including a first substrate on an observer side, a second substrate on a backside, and a liquid crystal layer sandwiched between the first and second substrates; and a protection plate which is provided on a front surface of the liquid crystal display panel via a space, wherein the protection plate includes a first optical member whose optical conditions are set such that incident light from the observer side becomes elliptically polarized light after passing through the protection plate and the first optical member, the elliptically polarized light being incident on the liquid crystal layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification