Liquid crystal device having a substrate provided with portions of an alignment control layer and carrier-transporting device and light-emitting device using the liquid crystal device
AssigneeCanon Kabushiki Kaisha
InventorsYasufumi Asao, Yukio Hanyu, Koichi Sato
Life of this patent
Estimating the term…
Abstract
A liquid crystal device includes a highly aligned liquid crystal over an entire area including regions not provided with a uniaxial alignment film. A carrier-transporting device and a light-emitting device incorporate such a liquid crystal device.
Claims6
A liquid crystal device comprising:
- a substrate having an electrode thereon, and
- a liquid crystal disposed on the substrate,
- wherein the liquid crystal exhibits an isotropic-smectic liquid crystal phase transition characteristic and has a charge-transporting function in the liquid crystal phase, and
- wherein the substrate is provided with portions of an alignment control layer having a uniaxial alignment control power locally formed thereon, whereby the liquid crystal is placed in an alignment state which has been formed through a process of isotropic-smectic liquid crystal transition on temperature decrease wherein a smectic liquid crystal phase is first generated in regions in contact with the portion of alignment control layer and continuously enlarged in a direction of the uniaxial alignment control power.
A light-emitting device comprising a liquid crystal device, said liquid crystal device comprising a substrate having an electrode thereon, and a liquid crystal exhibiting an isotropic-smectic liquid crystal phase transition characteristic disposed on the substrate, wherein the substrate is provided with portions of an alignment control layer having a uniaxial alignment control power locally formed thereon, whereby the liquid crystal is placed in an alignment state which has been formed through a process of isotropic-smectic liquid crystal transition on temperature decrease wherein a smectic liquid crystal phase is first generated in regions in contact with the portion of alignment control layer and continuously enlarged in a direction of the uniaxial alignment control power, and including a light-emitting layer.
Dependencies are inferred from the claim text.