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1. (WO2005062398) ORGANIC ELECTROLUMINESCENT DEVICES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/062398    International Application No.:    PCT/US2004/039824
Publication Date: 07.07.2005 International Filing Date: 29.11.2004
IPC:
H01L 51/30 (2006.01), H01L 51/50 (2006.01)
Applicants: EASTMAN KODAK COMPANY [US/US]; 343 State Street, Rochester, New York 14650-2201 (US) (For All Designated States Except US).
KONDAKOVA, Marina Eduardovna [RU/US]; (US) (For US Only).
YOUNG, Ralph Howard [US/US]; (US) (For US Only)
Inventors: KONDAKOVA, Marina Eduardovna; (US).
YOUNG, Ralph Howard; (US)
Common
Representative:
EASTMAN KODAK COMPANY; 343 State Street, Rochester, New York 14650-2201 (US)
Priority Data:
10/729,208 05.12.2003 US
Title (EN) ORGANIC ELECTROLUMINESCENT DEVICES
(FR) DISPOSITIFS ELECTROLUMINESCENTS ORGANIQUES
Abstract: front page image
(EN)Disclosed is an electroluminescent device comprising a cathode and an anode; and, located therebetween, a light-emitting layer (LEL) comprising a phosphorescent green-light-emitting material and a host material for the light-emitting material, and in a layer adjacent to the LEL on the anode side, an exciton-blocking layer containing a compound having a hole mobility of at least 1x10¿-3? cm¿2?V¿-1?s¿-1? and a triplet energy exceeding that of the green-light-emitting material of the LEL. Such a device provides useful light emission.
(FR)L'invention concerne un dispositif électroluminescent organique comprenant une cathode et une anode ; et située entre, une couche photoémettrice (LEL) comprenant un matériau phosphorescent émettant une lumière verte et un matériau hôte pour le matériau photoémetteur, et dans une couche adjacente à la LEL, côté anode, une couche bloquant les excitons, qui contient un composé à mobilité de trous d'au moins 1x10-3 cm2V-1s-1 et une énergie triplet dépassant celle du matériau émettant une lumière verte de la LEL. Un tel dispositif permet d'obtenir une photoémission utile.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)