US2015048355A1PendingUtilityA1

Organic electroluminescence device, display unit including the same, and method of manufacturing an organic electroluminescence device

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Assignee: SONY CORPPriority: Jun 23, 2009Filed: Oct 29, 2014Published: Feb 19, 2015
Est. expiryJun 23, 2029(~2.9 yrs left)· nominal 20-yr term from priority
Inventors:Mitsuhiro Kashiwabara
H10K 59/873H10K 59/80524H10K 59/12H10K 50/828H10K 59/876H01L 51/5234H01L 2251/558H01L 27/3244H10K 2102/3026H10K 2102/351H10K 71/00H10K 50/18H10K 50/852H10K 50/10
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Claims

Abstract

An organic electroluminescence device includes a first electrode, an organic layer formed on the first electrode and including a light-emitting layer, an intermediate layer formed on the organic layer; and a second electrode formed on the intermediate layer and having a thickness of 6 nm or less.

Claims

exact text as granted — not AI-modified
The invention is claimed as follows: 
     
         1 . An organic electroluminescence device comprising:
 a first electrode;   an organic layer formed on the first electrode and including a light-emitting layer;   an intermediate layer formed on the organic layer;   a second electrode formed on the intermediate layer; and   a protective layer formed on the second electrode,   wherein the intermediate layer is disposed between the second electrode and the organic layer,   wherein at least a portion of a metal element contained in the intermediate layer is diffused into the second electrode, and   wherein the intermediate layer includes at least one element selected from the group consisting of an alkali metal, an alkali earth metal, a lanthanide metal, aluminum, indium, tin, nickel, copper and zinc.   
     
     
         2 . The organic electroluminescence device according to  claim 1 , wherein the second electrode has a thickness of 6 nm or less. 
     
     
         3 . The organic electroluminescence device according to  claim 1 , wherein the intermediate layer directly contacts the organic layer and the second electrode. 
     
     
         4 . The organic electroluminescence device according to  claim 1 , wherein the intermediate layer directly contacts the organic layer. 
     
     
         5 . The organic electroluminescence device according to  claim 1 , wherein the intermediate layer directly contacts the second electrode. 
     
     
         6 . The organic electroluminescence device according to  claim 1 , wherein at least a portion of a metal element contained in the intermediate layer is diffused into the second electrode. 
     
     
         7 . The organic electroluminescence device according to  claim 1 , wherein the second electrode is made of a metal conductive film including an alloy comprising one or more of aluminum, magnesium, calcium and sodium. 
     
     
         8 . The organic electroluminescence device according to  claim 7 , wherein the alloy of the second electrode is a Mg—Ag alloy or an Al—Li alloy. 
     
     
         9 . The organic electroluminescence device according to  claim 1 , wherein a thickness of the intermediate layer ranges from 0.1 nm to 5 nm. 
     
     
         10 . The organic electroluminescence device according to  claim 1 , wherein the intermediate layer includes at least one lanthanide metal. 
     
     
         11 . A display device comprising at least one organic electroluminescent device including:
 a first electrode;   an organic layer formed on the first electrode and including a light-emitting layer;   an intermediate layer formed on the organic layer;   a second electrode formed on the intermediate layer; and   a protective layer formed on the second electrode,   wherein the intermediate layer is disposed between the second electrode and the organic layer,   wherein at least a portion of a metal element contained in the intermediate layer is diffused into the second electrode, and   wherein the intermediate layer includes at least one element selected from the group consisting of an alkali metal, an alkali earth metal, a lanthanide metal, aluminum, indium, tin, nickel, copper and zinc.   
     
     
         12 . The display device according to  claim 11 , wherein the second electrode has a thickness of 6 nm or less. 
     
     
         13 . The display device according to  claim 11 , wherein the intermediate layer directly contacts the organic layer and the second electrode. 
     
     
         14 . The display device according to  claim 11 , wherein the intermediate layer directly contacts the organic layer. 
     
     
         15 . The display device according to  claim 11 , wherein the intermediate layer directly contacts the second electrode. 
     
     
         16 . The display device according to  claim 11 , wherein at least a portion of a metal element contained in the intermediate layer is diffused into the second electrode. 
     
     
         17 . The display device according to  claim 11 , wherein the second electrode is made of a metal conductive film including an alloy comprising one or more of aluminum, magnesium, calcium and sodium. 
     
     
         18 . The display device according to  claim 17 , wherein the alloy of the second electrode is a Mg—Ag alloy or an Al—Li alloy. 
     
     
         19 . The display device according to  claim 11 , wherein a thickness of the intermediate layer ranges from 0.1 nm to 5 nm. 
     
     
         20 . The display device according to  claim 11 , wherein the intermediate layer includes at least one lanthanide metal.

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