Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2006-05-30
2006-05-30
Santiago, Mariceli (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S503000, C313S506000, C313S509000, C428S490000
Reexamination Certificate
active
07053545
ABSTRACT:
The present invention has an object to provide a method of raising a re-coupling efficiency of carriers in an EL element to thereby provide a light-emitting device having high emission efficiency. The method is that the electron trap region106and the hole trap region107are formed in the interior of the emission layer103.The electron trap region106here is a region that has the action of enclosing within the emission layer an electrons that is transferred at the lowest unoccupied molecular orbit (LUMO) level of the emission layer103.In addition, the hole trap region107is a region that has the action of enclosing within the emission layer a hole that is transferred at the highest occupied molecular orbit (HOMO) level of the emission layer103.
REFERENCES:
patent: 5120671 (1992-06-01), Tang et al.
patent: 5247190 (1993-09-01), Friend et al.
patent: 5343050 (1994-08-01), Egusa et al.
patent: 5399502 (1995-03-01), Friend et al.
patent: 5536949 (1996-07-01), Hosokawa et al.
patent: 5550066 (1996-08-01), Tang et al.
patent: 5703436 (1997-12-01), Forrest et al.
patent: 6312836 (2001-11-01), Bulovic et al.
patent: 6524727 (2003-02-01), Kathirgamanathan
patent: 6580213 (2003-06-01), Yamazaki
patent: WO 90/13148 (1990-11-01), None
patent: WO 94/06157 (1994-03-01), None
Kido et al., “Multilayer White Light-Emitting Organic Electroluminescent Device”, Science 267, Mar. 1, 1995, pp. 1332-1334.
Yoshida et al., “Three-layered multicolor organic electroluminescent device”, Appl. Phys. Lett. 69 (6), Aug. 5, 1996, pp. 734-736.
Herman Schenk et al., “Polymers for Light Emitting Diodes”, EuroDisplay '99 Proceedings, pp. 33-37; Sep. 6-9, 1999.
Japanese Patent Application Laid-Open No. 10-092576 (English Abstract attached).
Herman Schenk et al., “Polymers for Light Emitting Diodes”, EuroDisplay '99 Proceedings, pp. 33-37; Sep. 6-9, 1999.
Fish & Richardson P.C.
Santiago Mariceli
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