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US 4,796,980 AGranted
Ferroelectric liquid crystal optical modulation device with regions within pixels to initiate nucleation and inversion
AssigneeCanon Kabushiki Kaisha
InventorsShuzo Kaneko, Tsutomu Toyono, Junichiro Kanbe
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Abstract
An optical modulation device comprises a pair of substrates respectively having electrodes thereon arranged so as to form a pixel at an intersection thereof, and an optical modulation material disposed at the pixel. The pixel has regions of the optical modulation material having mutually different threshold characteristics.
Claims21
An optical modulation device, comprising:
- a plurality of pixels arranged two-dimensionally, each pixel comprising a first electrode and a second electrode disposed opposite to each other and an optical modulation material disposed between the first and second electrodes;
- each pixel having regions with mutually different uniaxial alignment control powers for aligning the optical modulation material.
An optical modulation device comprising:
- a plurality of pixels arranged two-dimensionally, each pixel comprising a first electrode and a second electrode disposed opposite to each other with an optical modulation material disposed between the first and second electrodes;
- each pixel having portions capable of having a locally different electric field intensity distributed dispersely in the pixel when an electric field is applied between the first and second electrodes wherein said portions having a locally different electric field intensity correspond to portions of the optical modulation material generating nuclei for initiating modulation.
Dependencies are inferred from the claim text.