Global Patent Index - EP 1023706 A1

EP 1023706 A1 2000-08-02 - ELECTRO-OPTICAL DISPLAY APPARATUS

Title (en)

ELECTRO-OPTICAL DISPLAY APPARATUS

Title (de)

ELEKTRO-OPTISCHES ANZEIGEGERÄT

Title (fr)

DISPOSITIF D'AFFICHAGE ELECTRO-OPTIQUE

Publication

EP 1023706 A1 (EN)

Application

EP 98940527 A

Priority

  • IL 9800402 W
  • US 93194297 A

Abstract (en)

[origin: WO9914716A1] Electro-optical display apparatus includes a plurality of modular units (M1-M4) each having a projector (5) for receiving electrical signals, converting them to optical images, and projecting the optical images via an optical projection system (18) onto a screen (4). The modular units (M1-M4) are arranged in a side-by-side array such as to produce a combined display on the screen. A calibration system detects distortions in the combined display caused by the projection system of each modular unit and modifies the electrical signals applied to the projector of each modular unit to correct the combined display with respect to the detected distortions.

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

G08B 5/00; G09G 3/00; G09G 5/00; H04N 3/22; H04N 5/64; H04N 5/66; H04N 5/74

IPC 8 full level (invention and additional information)

G03B 21/14 (2006.01); G06F 3/147 (2006.01); G09G 3/20 (2006.01); G09G 3/36 (2006.01); G09G 5/00 (2006.01); H04N 3/23 (2006.01); H04N 5/74 (2006.01); H04N 17/04 (2006.01); G09G 3/00 (2006.01); H04N 9/12 (2006.01); H04N 17/00 (2006.01)

CPC (invention and additional information)

H04N 17/04 (2013.01); G06F 3/147 (2013.01); H04N 9/3147 (2013.01); H04N 9/3194 (2013.01); G09G 3/001 (2013.01); G09G 2300/026 (2013.01)

Designated contracting state (EPC)

DE DK GB

EPO simple patent family

WO 9914716 A1 19990325; AU 743173 B2 20020117; AU 8883098 A 19990405; CA 2303128 A1 19990325; CN 1279801 A 20010110; EP 1023706 A1 20000802; EP 1023706 A4 20020807; JP 2002503892 A 20020205

INPADOC legal status


2004-09-01 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040302

2002-08-07 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20020624

2002-08-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): DE DK GB

2002-08-07 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7H 04N 9/12 A

2000-08-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000317

2000-08-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE DK GB