# US 5,347,379 A · Liquid crystal device with MIM insulator formed as a continuous monomolecular film

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- Number: US 5,347,379 A
- Document ID: US5347379A
- Status: Granted
- Kind: A
- Application number: 08/150,264
- Filed: 1993-11-10
- Granted: 1994-09-13
- Earliest claimed: 1990-06-07
- Assignees: Canon Kabushiki Kaisha
- Inventors: Hideyuki Kawagishi; Kiyoshi Takimoto; Haruki Kawada; Hiroshi Matsuda; Yoshihiro Yanagisawa
- Web page: https://patentgrep.com/patent/US5347379A

## CPC

- G02F 1/1365: in which the switching element is a two-electrode device {(G02F1/136277 takes precedence)}
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- G02F 1/133711: {by organic films, e.g. polymeric films}
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES

## Abstract

A liquid crystal device comprising a pair of substrates each having an electrode, and a liquid crystal layer having a chiral smectic phase, provided between the substrates, wherein a first substrate which is one of the substrates comprises; i) a plurality of first electrodes dividedly disposed, the plurality of first electrodes being covered with a monomolecular film or monomolecular built-up film in such a way that the monomolecular film or monomolecular built-up film provided on the first electrodes and between the first electrodes is formed in a continuous film; and ii) a second electrode provided on the monomolecular film or monomolecular built-up film in such a way that an MIM device is formed at the part where the first electrodes, the monomolecular film or monomolecular built-up film and the second electrode overlap in layers.

## Claims

### Claim 1

A liquid crystal device, comprising: a pair of substrates, either having a plurality of electrodes including picture element electrodes and a liquid crystal layer having a chiral smectic phase provided between said substrates, wherein a first substrate of said pair of substrates comprises:
(i) a plurality of first electrodes dividedly disposed to partially overlap said picture element electrodes, said plurality of first electrodes being covered with a continuous monomolecular or monomolecular built-up film; and
(ii) a plurality of second electrodes provided on said continuous monomolecular or monomolecular built-up film in areas other than over said picture element electrode such that a MIM device is formed where said first electrodes, said monomolecular or monomolecular built-up film and said second electrodes overlap in layers.

### Claim 2 (depends on 1)

A liquid crystal device according to claim 1, wherein an aligning film is further provided on said monomolecular film or monomolecular built-up film and said plurality of second electrodes.

### Claim 3 (depends on 1)

A liquid crystal device according to claim 1, wherein said monomolecular film or monomolecular built-up film formed has been obliquely irradiated with an ion beam.

### Claim 4 (depends on 1)

The liquid crystal device according to claim 1, wherein said liquid crystal layer has a chiral smectic phase.

### Claim 5 (depends on 4)

The liquid crystal device according to claim 4, wherein said liquid crystal layer exhibits said chiral smectic phase.