EP 1021839 A1 20000726 - 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
Application
Priority
- US 9813633 W 19980702
- US 5235697 P 19970711
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
IPC 8 full level
H01L 27/32 (2006.01); H01L 51/40 (2006.01); H01L 51/52 (2006.01)
CPC (source: EP)
H10K 59/32 (2023.02); H10K 59/35 (2023.02); H10K 59/805 (2023.02); H10K 71/162 (2023.02); H10K 71/18 (2023.02); H10K 71/231 (2023.02)
Citation (search report)
See references of WO 9903157A1
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
WO 9903157 A1 19990121; CN 1151563 C 20040526; CN 1269055 A 20001004; EP 1021839 A1 20000726; HK 1030481 A1 20010504; KR 20010021742 A 20010315
DOCDB simple family (application)
US 9813633 W 19980702; CN 98808734 A 19980702; EP 98931747 A 19980702; HK 01101307 A 20010223; KR 20007000305 A 20000111