Global Patent Index - EP 1021839 A1

EP 1021839 A1 2000-07-26 - LASER ABLATION METHOD TO FABRICATE COLOR ORGANIC LIGHT EMITTING DIODE DISPLAYS

Title (en)

LASER ABLATION METHOD TO FABRICATE COLOR ORGANIC LIGHT EMITTING DIODE DISPLAYS

Title (de)

LASERABLATIONSVERFAHREN ZUM HERSTELLEN VON FARBANZEIGEN MIT ORGANISCHEN ELEKTROLUMINESZENTEN DIODEN

Title (fr)

PROCEDE D'ABLATION PAR LASER PERMETTANT LA FABRICATION D'AFFICHEURS COULEUR A DIODES ELECTROLUMINESCENTES ORGANIQUES

Publication

EP 1021839 A1 (EN)

Application

EP 98931747 A

Priority

  • US 9813633 W
  • US 5235697 P

Abstract (en)

[origin: WO9903157A1] Laser radiation may be used to ablate organic materials (310, 520 and 730) as well as metals (400, 600 and 800). A method of using such laser ablation to selectively remove organic material and metal material from an organic light emitting device (OLED) work piece (1000) is disclosed. The ablation enables fabrication of multi-color pixels in OLED displays. A novel OLED structure having adjacent multi-colored organic stakes (10, 20 and 30) is disclosed. Further, a novel ablation chamber (900) in which an OLED structure (1000) may be subjected to laser ablation is also disclosed. The ablation chamber includes means for moving an OLED structure within the chamber, means for detecting an ablation endpoint, and means for suctioning ablated material from the chamber.

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

H01L 33/00

IPC 8 full level (invention and additional information)

H01L 27/32 (2006.01); H01L 51/40 (2006.01); H01L 51/52 (2006.01)

CPC (invention and additional information)

H01L 51/5203 (2013.01); H01L 27/3209 (2013.01); H01L 27/3211 (2013.01); H01L 51/0009 (2013.01); H01L 51/0013 (2013.01); H01L 51/0017 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL SE

EPO simple patent family

WO 9903157 A1 19990121; CN 1151563 C 20040526; CN 1269055 A 20001004; EP 1021839 A1 20000726; HK 1030481 A1 20050318

INPADOC legal status


2003-09-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030203

2000-07-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000112

2000-07-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT NL SE