US 7,612,862 B2Granted

Liquid crystal device

AssigneeCitizen Holdings Co., Ltd.

InventorKenji Noguchi

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Abstract

An object of the invention is to provide a liquid crystal device that uses a smectic liquid crystal and that can produce a uniform display. The liquid crystal device includes a pair of substrates, a smectic liquid crystal provided between the pair of substrates, an injection hole for injecting therethrough the smectic liquid crystal into a gap formed between the pair of substrates, a plurality of scanning electrodes arranged at right angles to the direction of injection of the smectic liquid crystal between the pair of substrates, an alignment film deposited over the plurality of scanning electrodes, and voltage applying means for applying a voltage to the plurality of scanning electrodes in sequence proceeding from a side nearest to the injection hole toward a side farthest therefrom.

Claims5

Dependent claims

A liquid crystal device comprising:

a pair of substrates;
a smectic liquid crystal provided between said pair of substrates;
an injection hole for injecting therethrough said smectic liquid crystal into a gap formed between said pair of substrates;
a plurality of scanning electrodes arranged at right angles to the direction of injection of said smectic liquid crystal between said pair of substrates, and wherein said plurality of scanning electrodes includes a first scanning electrode which is placed at a side nearest to said injection hole and a last scanning electrode which is placed at a side farthest from said injection hole;
an alignment film deposited over said plurality of scanning electrodes;
and
voltage applying means for applying a voltage to said plurality of scanning electrodes in sequence proceeding from said first scanning electrode toward said last scanning electrode.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/052,439Filed 20 Mar 2008
Priority: JP 2007-07456422 Mar 2007
Published: US 2008/0231787 A125 Sep 2008
Granted: 3 Nov 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G09G 3/3651
Using an active matrix: using multistable liquid crystals, e.g. ferroelectric liquid crystals
G02F 1/1341
Constructional arrangements; Manufacturing methods: filling or closing of cells
G09G 2320/0209
Improving the quality of display appearance: crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain…
G09G 2320/0233
Improving the quality of display appearance: improving the luminance or brightness uniformity across the screen

Family

US 2008/0231787 A1Pre-grant publication · published 25 Sep 2008
US 7,612,862 B2This patent

From the US filing history. Foreign family members aren’t listed.

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