Global Patent Index - EP 1053502 A1

EP 1053502 A1 2000-11-22 - ELECTROCHROMIC DISPLAY

Title (en)

ELECTROCHROMIC DISPLAY

Title (de)

ELEKTROCHROMES DISPLAY

Title (fr)

SYSTEME D'AFFICHAGE ELECTROCHROMIQUE

Publication

EP 1053502 A1 (DE)

Application

EP 99906189 A

Priority

  • DE 19804314 A
  • EP 9900411 W

Abstract (en)

[origin: DE19804314A1] The present invention relates to an electrochromic display system comprising a mirror which can be electrically dimmed, an optical filter whose transparency can be electrically modulated, or a display member. The display system comprises an electrochromic liquid located between two electrode surfaces, wherein at least one of said surfaces is transparent. The display system also includes a transparent electro-conductive layer. In order to provide an homogenous coloration of the electrochromic liquid, the transparent electrode surface comprises a striated pattern or a grid made of a metallic-conduction material.

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

G02F 1/155; G02F 1/15

IPC 8 full level (invention and additional information)

G02F 1/15 (2006.01); G02F 1/155 (2006.01)

CPC (invention and additional information)

G02F 1/155 (2013.01); G02F 1/1521 (2013.01); G02F 2001/1502 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IT LI NL

EPO simple patent family

DE 19804314 A1 19990812; AU 2621199 A 19990823; EP 1053502 A1 20001122; JP 2002502990 A 20020129; US 6785036 B1 20040831; WO 9940481 A1 19990812

INPADOC legal status


2007-05-02 [18R] REFUSED

- Effective date: 20061127

2005-03-09 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: BAYER INNOVATION GMBH

2004-01-07 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: BAYER CHEMICALS AG

2003-05-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030328

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

- Effective date: 20000904

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

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FR GB IT LI NL