Global Patent Index - EP 1050195 A1

EP 1050195 A1 2000-11-08 - A DEVICE FOR EMITTING LIGHT

Title (en)

A DEVICE FOR EMITTING LIGHT

Title (de)

LICHTEMITTIERENDE VORRICHTUNG

Title (fr)

DISPOSITIF PHOTOEMETTEUR

Publication

EP 1050195 A1 (EN)

Application

EP 99901768 A

Priority

  • GB 9900206 W
  • GB 9801316 A

Abstract (en)

[origin: WO9938362A1] A device for emitting light comprises a body (3) consisting of a light-emissive polymer or an electroluminescent organic material, and a plurality of electrodes (2, 4) electrically coupled to the body. A layer of non-crystalline tetrahedrally bonded carbon (6) is located between the body and at least one electrode (2). The layer of tetrahedrally bonded carbon has an electron affinity sufficiently low such as to promote the emission of electrons into the body in use. The carbon layer also promotes adhesion between the electrodes and the body. The carbon layer is a poor electrical conductor, and need not be removed between adjacent electrodes.

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

H05B 33/26

IPC 8 full level (invention and additional information)

H01L 51/50 (2006.01); H01L 51/52 (2006.01); H05B 33/26 (2006.01)

CPC (invention and additional information)

H01L 51/5092 (2013.01); H05B 33/26 (2013.01)

Citation (search report)

See references of WO 9938362A1

Designated contracting state (EPC)

BE CH DE FI FR GB LI NL SE

EPO simple patent family

WO 9938362 A1 19990729; EP 1050195 A1 20001108; GB 9801316 D0 19980318; JP 2002502090 A 20020122; TW 431121 B 20010421

INPADOC legal status


2002-01-02 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20010626

2001-01-31 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20001214

2000-11-08 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000814

2000-11-08 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): BE CH DE FI FR GB LI NL SE