Liquid crystal optical element and three-dimensional display system including the liquid crystal optical element
First Claim
1. A liquid crystal optical element comprising:
- two substrates;
a liquid crystal layer, which is provided between the two substrates and which includes liquid crystal molecules and dichroic dye molecules; and
at least two electrodes, which are provided on the two substrates, respectively, so as to face each other with the liquid crystal layer interposed between them and which define one of a plurality of unit regions, wherein in each of the unit regions, the liquid crystal layer includes a first liquid crystal region and a second liquid crystal region within a range, which is approximately half or less as long as the wavelength of visible radiation as measured in a direction that is parallel to the surfaces of the two substrates, the orientation directions of each pair of liquid crystal molecules in the first and second liquid crystal regions having azimuthal directions that define an angle of approximately 90 degrees while no voltage is being applied between the electrodes.
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Abstract
A liquid crystal optical element includes two substrates, a liquid crystal layer, and at least two electrodes. The liquid crystal layer is provided between the substrates and includes liquid crystal molecules and dichroic dye molecules. The at least two electrodes are provided on the substrates so as to face each other with the liquid crystal layer interposed between them, and define one of multiple unit regions. In each unit region, the liquid crystal layer includes first and second liquid crystal regions within a range, which is approximately half or less as long as the wavelength of visible radiation as measured in a direction parallel to the surfaces of the substrates. The orientation directions of each pair of liquid crystal molecules in the first and second liquid crystal regions have azimuthal directions defining an angle of approximately 90 degrees while no voltage is being applied between the electrodes.
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Citations
16 Claims
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1. A liquid crystal optical element comprising:
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two substrates;
a liquid crystal layer, which is provided between the two substrates and which includes liquid crystal molecules and dichroic dye molecules; and
at least two electrodes, which are provided on the two substrates, respectively, so as to face each other with the liquid crystal layer interposed between them and which define one of a plurality of unit regions, wherein in each of the unit regions, the liquid crystal layer includes a first liquid crystal region and a second liquid crystal region within a range, which is approximately half or less as long as the wavelength of visible radiation as measured in a direction that is parallel to the surfaces of the two substrates, the orientation directions of each pair of liquid crystal molecules in the first and second liquid crystal regions having azimuthal directions that define an angle of approximately 90 degrees while no voltage is being applied between the electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification