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US 6,768,536 B2Granted
Liquid crystal microlens
AssigneeCitizen Electronics Co., Ltd.
InventorsDaisaku Okuwaki, Susumu Sato
Life of this patent
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Abstract
There is provided a pair of transparent upper and lower glass substrates which are disposed apart from each other so as to form a space there-between, a pair of electrodes provided on the underside of the upper substrate and on the upper surface of the lower substrate. A plurality of circular holes are formed in each of the electrodes. A liquid crystal is charged in the space. The liquid crystal has a lens construction formed by an electric current and hardened by irradiation of ultraviolet rays.
Claims3
A liquid crystal lens comprising:
- a pair of transparent upper and lower glass substrates which are disposed apart from each other so as to form a space there-between;
- a pair of electrodes provided on the underside of the upper substrate and on the upper surface of the lower substrate;
- an alignment layer formed on each of the electrodes;
- at least one electrode having at least one hole;
- an ultraviolet curable liquid crystal material charged in the space,
- the liquid crystal material having a lens construction formed by an electric current and hardened by irradiation of ultraviolet rays.
3 more elements
A liquid crystal lens comprising:
- a pair of transparent upper and lower glass substrates which are disposed apart from each other so as to form a space there-between;
- a pair of electrodes provided on the underside of the upper substrate and on the upper surface of the lower substrate;
- an alignment layer formed on each of the electrodes;
- each of the electrodes having a plurality of circular holes, each of the holes of one of the electrodes being opposed to the hole of the other electrode;
- an ultraviolet curable liquid crystal material charged in the space,
- the liquid crystal material having a lens construction formed by an electric current and hardened by irradiation of ultraviolet rays.
3 more elements
Dependencies are inferred from the claim text.