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US 8,797,468 B2Granted
Liquid crystal shutter glasses
AssigneeNEC Corporation
InventorsGoroh Saitoh, Masao Imai, Fujio Okumura
Life of this patent
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Abstract
A liquid crystal shutter glasses comprises a liquid crystal shutter placed within the view angle of the observer of a display apparatus wherein the liquid crystal shutter has an effective shutter region in which the transmission or shielding of incident light is controllable and a light attenuation region positioned outside the effective shutter region for attenuating incident light.
Claims19
Liquid crystal shutter glasses, comprising:
- a liquid crystal shutter placed within a view angle of an observer of a display apparatus,
- wherein said liquid crystal shutter comprises:
- an effective shutter region in which a transmission or shielding of incident light is controllable;
- a light attenuation region for diminishing and transmitting incident light that is positioned outside the effective shutter region for attenuating incident light;
- and
- a liquid crystal cell including a liquid crystal layer and first and second transparent electrodes holding the liquid crystal layer in-between, and first and second polarization layers holding the liquid crystal cell in-between, and
- wherein one of said first and second transparent electrodes is smaller than another one of said first and second transparent electrodes and defines said effective shutter region.
4 more elements
Dependencies are inferred from the claim text.