Global Patent Index - EP 1053503 A1

EP 1053503 A1 2000-11-22 - LIQUID CRYSTAL LIGHT MODULATOR

Title (en)

LIQUID CRYSTAL LIGHT MODULATOR

Title (de)

FLÜSSIGKRISTALLICHTMODULATOR

Title (fr)

MODULATEUR OPTIQUE A CRISTAUX LIQUIDES

Publication

EP 1053503 A1 (EN)

Application

EP 99905023 A

Priority

  • GB 9900436 W
  • GB 9803157 A

Abstract (en)

[origin: WO9941639A1] A light modulator liquid crystal cell comprises a first optically transparent wall supporting a first electrode. The device also comprises a second wall supporting a second, reflective electrode, and a cholesteric liquid crystal layer formed within the first and second walls, where the cholesteric liquid crystal forms a diffracting or refracting layer that diffracts or refracts light passing through the structure.

IPC 1-7 (main, further and additional classification)

G02F 1/29; G02F 1/1333; G02F 1/1335; G02F 1/139; H04N 9/31; H04N 5/74

IPC 8 full level (invention and additional information)

G02F 1/1333 (2006.01); G02F 1/29 (2006.01)

CPC (invention and additional information)

G02F 1/1333 (2013.01); G02F 1/292 (2013.01); G02F 2203/02 (2013.01)

Designated contracting state (EPC)

CH DE FR GB IT LI

EPO simple patent family

WO 9941639 A1 19990819; AU 2533099 A 19990830; EP 1053503 A1 20001122; GB 9803157 D0 19980408

INPADOC legal status


2004-08-04 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040129

2002-09-18 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020806

2000-11-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000828

2000-11-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): CH DE FR GB IT LI