Tandem OLED having an organic intermediate connector

Details Tandem OLED having an organic intermediate connector Tandem OLED having an organic intermediate connector

2005-02-23

2009-02-24

Shosho, Callie E (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257SE51022, C257SE51024, C544S343000

Reexamination Certificate

active

07494722

ABSTRACT:
A tandem OLED includes an anode and a cathode. The OLED also includes at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-transporting layer and one organic light-emitting layer. An intermediate connector is disposed between adjacent electroluminescent units, wherein the intermediate connector includes an n-doped organic layer and an electron-accepting layer, the electron-accepting layer being disposed closer to the cathode than the n-doped organic layer, and wherein the electron-accepting layer includes one or more organic materials, each having a reduction potential greater than −0.5 V vs. a Saturated Calomel Electrode, and wherein the one or more organic materials constitute more than 50% by volume of the electron-accepting layer.

REFERENCES:
patent: 4500459 (1985-02-01), Hotta et al.
patent: 4769292 (1988-09-01), Tang et al.
patent: 4780536 (1988-10-01), Czarnik et al.
patent: 6107734 (2000-08-01), Tanaka et al.
patent: 6337492 (2002-01-01), Jones et al.
patent: 6717358 (2004-04-01), Liao et al.
patent: 6720573 (2004-04-01), Son et al.
patent: 2002/0158242 (2002-10-01), Son et al.
patent: 2003/0170491 (2003-09-01), Liao et al.
patent: 2003/0189401 (2003-10-01), Kido et al.
patent: 2005/0029538 (2005-02-01), Choi et al.
patent: 2005/0029933 (2005-02-01), Liao et al.
patent: 2007/0181887 (2007-08-01), Kijima et al.
patent: 1 408 563 (2004-04-01), None
patent: 1 463 130 (2004-09-01), None
patent: 2003045676 (2003-02-01), None
Tatewaki et al., “Molecular-assembly nanostructures of 1:1 mixed Langmuir-Blodgett films of amphiphilic bis-TTF macrocycle and F4-TCNQ,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 284-285, pp. 631-634, Aug. 2006.
Gao et al. “Controlled p-doping of zinc phthalocyanine by coevaporation with tetrafluorotetracyanoquinodimethane: A direct and inverse photoemission study,” Applied Physics Letters, vol. 79, No. 24, pp. 4040-4042, Dec. 2001.
Henning Rost et al., Novel Light-Emitting Poly(arylene vinylene) Copolymer Containing Alternating Phenylene and TPD Units, Proceedings of the SPIE, vol. 3148, Jul. 1997, pp. 373-381, XP-001051675.
Tang et al. “Organic Electroluminescent Diodes”, Applied Physics Letters, 51, 913 (1987).
Adachi et al., “Electroluminescence in Organic Films with Three-Layer Structure”, Japanese Journal of Applied Physics, 27, L269 (1988).
Tang et al., “Electroluminescence of Doped Organic Thin Films”, Journal of Applied Physics, 65, 3610 (1989).

Affiliated with

Also associated with

Rating

Tandem OLED having an organic intermediate connector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tandem OLED having an organic intermediate connector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tandem OLED having an organic intermediate connector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4054063