EP 2862211 A1 20150422 - P-I-N-TYPE ORGANIC LIGHT-EMITTING DIODE
Title (en)
P-I-N-TYPE ORGANIC LIGHT-EMITTING DIODE
Title (de)
ORGANISCHE LEUCHTDIODE VOM P-I-N-TYP
Title (fr)
DIODE ÉLECTROLUMINESCENTE ORGANIQUE DE TYPE PIN
Publication
Application
Priority
- FR 1255680 A 20120618
- EP 2013062362 W 20130614
Abstract (en)
[origin: WO2013189850A1] The invention relates to a p-i-n-type organic light-emitting diode (OLED) including a stack that includes the following ordered series: a first electrode (2, 8) of a first electrode type, a first transport layer (3, 7) of a first charge carrier type, a transmission layer (5), a second transport layer (3, 7) of a second charge carrier type, and a second electrode (2, 8) of a second electrode type. At least one of the transport layers (3, 7) includes at least two basic transport layers (3l-3n, 7l-7n). According to the invention, each basic transport layer (3l-3n, 7l-7n) of a single transport layer (3, 7) has, relative to an adjacent basic transport layer, a charge carrier mobility corresponding to said decreasing transport layer, and consequently, a conductivity that decreases as the basic transport layer (3l-3n, 7l-7n) progresses away from the adjacent electrode (2, 8), the basic transport layers of a single transport layer having the same dopant concentration.
IPC 8 full level
H01L 51/50 (2006.01)
CPC (source: EP KR US)
H10K 50/11 (2023.02 - US); H10K 50/155 (2023.02 - EP KR US); H10K 50/156 (2023.02 - EP KR US); H10K 50/165 (2023.02 - EP KR US); H10K 50/166 (2023.02 - EP KR US); H10K 2101/30 (2023.02 - US); H10K 2101/40 (2023.02 - US); H10K 2102/351 (2023.02 - US)
Citation (search report)
See references of WO 2013189850A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 2992097 A1 20131220; FR 2992097 B1 20150327; EP 2862211 A1 20150422; KR 20150020706 A 20150226; US 2015171361 A1 20150618; US 9419238 B2 20160816; WO 2013189850 A1 20131227
DOCDB simple family (application)
FR 1255680 A 20120618; EP 13728418 A 20130614; EP 2013062362 W 20130614; KR 20157001298 A 20130614; US 201314409256 A 20130614