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1. (WO2007004729) LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/004729 International Application No.: PCT/JP2006/313631
Publication Date: 11.01.2007 International Filing Date: 03.07.2006
IPC:
H05B 33/12 (2006.01) ,C09K 11/06 (2006.01) ,G09F 9/30 (2006.01) ,H01L 27/32 (2006.01) ,H01L 51/50 (2006.01)
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33
Electroluminescent light sources
12
Light sources with substantially two-dimensional radiating surfaces
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11
Luminescent, e.g. electroluminescent, chemiluminescent, materials
06
containing organic luminescent materials
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9
Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
30
in which the desired character or characters are formed by combining individual elements
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27
Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28
including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32
with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51
Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50
specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
Applicants:
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. [JP/JP]; 398, Hase, Atsugi-shi Kanagawa 243-0036, JP (AllExceptUS)
SEO, Satoshi [JP/JP]; JP (UsOnly)
IWAKI, Yuji; null (UsOnly)
Inventors:
SEO, Satoshi; JP
IWAKI, Yuji; null
Priority Data:
2005-19761406.07.2005JP
Title (EN) LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE
(FR) ÉLÉMENT ÉLECTROLUMINESCENT, DISPOSITIF ÉLECTROLUMINESCENT ET DISPOSITIF ÉLECTRONIQUE
Abstract:
(EN) It is an object to provide a light-emitting element which can reduce power consumption. A light-emitting element is provided, which includes a pair of electrodes and a light-emitting layer interposed between the pair of electrodes. The light-emitting layer includes at least a first layer and a second layer, each of the first layer and the second layer includes an emission center and a host material, the emission center is dispersed in the host material, a thickness of each of the first layer and the second layer is 1 nm or more and 10 nm or less, and the first layer is not in contact with the second layer.
(FR) La présente invention concerne un élément électroluminescent réduisant la consommation d'énergie. Ledit élément électroluminescent comprend deux électrodes et une couche électroluminescente intercalée entre ces deux électrodes. La couche électroluminescente contient au moins une première et une seconde couche, comportant chacune un centre d'émission et un matériau hôte ; le centre d'émission est réparti dans le matériau hôte ; l'épaisseur de la première et de la seconde couche est égale ou supérieure à 1 nm et inférieure ou égale à 10 nm ; la première couche n'est pas en contact avec la seconde couche.
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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, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (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, LT, LU, LV, 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)
Also published as:
KR1020080025416US20090206732US20130187536