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Pub. No.:    WO/2005/015654    International Application No.:    PCT/IB2004/051324
Publication Date: 17.02.2005 International Filing Date: 29.07.2004
H01L 51/30 (2006.01)
Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1, NL-5621 BA Eindhoven (NL) (For All Designated States Except US).
DE KOK-VAN BREEMEN, Margaretha, M. [NL/NL]; (NL) (For US Only).
BUECHEL, Michael [DE/NL]; (NL) (For US Only).
DE WINTER, Suzanna, H., P., M. [NL/NL]; (NL) (For US Only).
VULTO, Simone, I., E. [NL/NL]; (NL) (For US Only)
Inventors: DE KOK-VAN BREEMEN, Margaretha, M.; (NL).
BUECHEL, Michael; (NL).
DE WINTER, Suzanna, H., P., M.; (NL).
VULTO, Simone, I., E.; (NL)
Agent: TOL, Arie, J., W.; Prof. Holstlaan 6, NL-5656 AA Eindhoven (NL)
Priority Data:
03102446.6 06.08.2003 EP
Abstract: front page image
(EN)The invention pertains to a light-emitting diode (LED) comprising layers of an anode, an acidic hole conducting-injecting material, a light-emitting polymer, and a cathode, characterized in that the hole conducting-injecting material comprises a poly(3,4-ethylenedioxythiophene poly(styrenesulfonate) (PEDOT), which is obtainable by at least partially neutralizing the PEDOT with an anion that is comprised or formed from a sodium or potassium compound, and the light-emitting material comprises a light-emitting p-arylene­vinylene polymer (PAV). The invention further relates to a method for increasing the efficiency of said light-emitting diode.
(FR)La diode luminescente (DEL) décrite comprend une anode, un matériau acide de conduction par trous/injection de trous, un polymère luminescent et une cathode. La diode se caractérise en ce que le matériau de conduction par trous/injection de trous comprend un poly(3,4-éthylènedioxythiophène) poly(styrène sulfonate) (PEDOT) obtenu par neutralisation au moins partielle du PEDOT avec un anion constitué ou formé d'un composé de sodium ou de potassium, alors que le matériau luminescent comprend un polymère de p-arylène-vinylène (PAV) luminescent. L'invention concerne en outre une méthode d'amélioration de l'efficacité de la diode luminescente décrite.
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, 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)