← Back to Patent Explorer
EP0162708A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Color liquid crystal device

Assignee: Citizen Watch Co Ltd
•
Filing: 1985-05-21
•
Granted: —
•
Expires: 2005-05-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A color liquid crystal panel is disclosed. The panel comprises a liquid crystal, a color filter provided between a substrate and a counter electrode substrate, and a microsheet disposed between the liquid crystal and the color filter thereby separating them from each other.

Inventors

  • 👤 Haruo Watanabe
  • 👤 Eiichi Tajima
  • 👤 Masaaki Matsunaga

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-30 08:34
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 42 words
A color liquid crystal device comprising a liquid crystal and a color filter between a substrate and a counter electrode substrate, characterised in that a microsheet is disposed between the liquid crystal and the color filter thereby separating one from the other.
Claim 2
Dependent Claim 42 words
A color liquid crystal device comprising a liquid crystal and a color filter between a substrate and a counter electrode substrate, characterised in that a microsheet is disposed between the liquid crystal and the color filter thereby separating one from the other.
Claim 3
Dependent Claim 68 words
A color liquid crystal device as claimed in claim 1, characterised in that the microsheet has a thickness which satisfies at least one of following conditions (d 1 , d2 ): where a is the size of an electrode pixel, b is the distance between electrode pixels, d is the thickness of the microsheet, and subscripts 1 and 2 indicate the transverse and longitudinal directions of the microsheet.
Claim 4
Dependent Claim 29 words
A color liquid crystal device as claimed in either of claims 1 and 2, characterised in that an adhesive material is provided between the microsheet and the color filter.
Claim 5
Dependent Claim 20 words
A color liquid crystal device as claimed in claim 3, characterised in that the adhesive material is a photosensitive resin.
Claim 6
Dependent Claim 26 words
A color liquid crystal device as claimed in any one of the preceding claims, characterised in that the color filter is formed by a printing method.
Claim 7
Dependent Claim 23 words
A color liquid crystal device as claimed in any one of the preceding claims characterised in that the color filter comprises a pigment.
Claim 8
Dependent Claim 24 words
A color liquid crystal device as claimed in any one of the preceding claims, characterised in that the microsheet is a thin glass sheet.
Claim 9
Dependent Claim 24 words
A color liquid crystal device as claimed in any one of claims 1 to 6 characterised in that the microsheet is a plastic film.
Claim 10
Dependent Claim 33 words
9 . A color liquid crystal device as claimed in any one of the preceding claims, characterised in that the microsheet has a thickness in the order of 20 µm - 200 µm.
Claim 11
Dependent Claim 25 words
A color liquid crystal device as claimed in any one of the preceding claims characterised in that it is in the form of a panel.
Claim 12
Dependent Claim 18 words
An image display device incorporating a color liquid crystal device according to any one of the preceding claims.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag