Organic optoelectronic component

Patent metadata

Field	Value
Publication number	US-10147904-B2
Application number	US-201414916560-A
Country	US
Kind code	B2
Filing date	Sep 2, 2014
Priority date	Sep 4, 2013
Publication date	Dec 4, 2018
Grant date	Dec 4, 2018

Abstract

The invention relates to an organic optoelectronic component comprising a substrate ( 101 ) on which a first electrode ( 102 ), then an organic functional layer stack ( 103 ) having at least one organic optoelectronic layer, and then a second electrode ( 104 ) are successively arranged. A thin film encapsulation ( 107 ) is arranged over the second electrode ( 104 ) and in addition to the second electrode ( 104 ), at least one first intermediate layer ( 121 ) having a hardness which is different from the layer which is directly adjacent thereto is arranged between the organic functional layer stack ( 103 ) and the thin-film encapsulation ( 107 ).

First claim

The invention claimed is:

1. An organic optoelectronic component, comprising:
a substrate, on which a first electrode, thereabove an organic functional layer stack having at least one organic optoelectronic layer, and thereabove a second electrode are arranged;
above the second electrode a thin-film encapsulation; and
between the organic functional layer stack and the thin-film encapsulation in addition to the second electrode at least one first intermediate layer having a different hardness than a directly adjacent layer,
wherein the thin-film encapsulation comprises one or more thin layers applied by at least one of chemical vapor deposition, atomic layer deposition or molecular layer deposition, and
wherein the thin-film encapsulation is configured to form a barrier with respect to at least one of moisture, oxygen or corrosive gas,
wherein the at least one first intermediate layer is arranged between the second electrode and the thin-film encapsulation,
wherein the at least one first intermediate layer directly adjoins the second electrode and has a greater hardness than the second electrode, and
wherein the at least one first intermediate layer has a lower hardness than a layer of the thin-film encapsulation that directly adjoins the at least one first intermediate layer.

2. The organic optoelectronic component according to claim 1 , wherein the at least one first intermediate layer is constructed to protect the organic functional layer stack against damage as a result of dirt particles, in particular dirt particles situated between the second electrode and the thin-film encapsulation.

3. The organic optoelectronic component according to claim 1 , wherein the second electrode comprises Al, Ag, Mg or a combination thereof and the first intermediate layer comprises Cr, Wo, V, Os, Ru, Ir or a combination thereof.

4. The organic optoelectronic component according to claim 1 , wherein a second intermediate layer directly adjoining the first intermediate layer is arranged between the first intermediate layer and the thin-film encapsulation, and the first intermediate layer has a greater hardness than the second intermediate layer.

5. The organic optoelectronic component according to claim 1 , wherein the at least one first intermediate layer completely covers the second electrode.

6. An organic optoelectronic component comprising:
a substrate, on which a first electrode, thereabove an organic functional layer stack having at least one organic optoelectronic layer, and thereabove a second electrode are arranged;
above the second electrode a thin-film encapsulation; and
between the organic functional layer stack and the thin-film encapsulation in addition to the second electrode at least one first intermediate layer having a different hardness than a directly adjacent layer,
wherein the at least one first intermediate layer is arranged between the second electrode and the thin-film encapsulation,
wherein the at least one first intermediate layer directly adjoins the second electrode and has a greater hardness than the second electrode, and
wherein the first intermediate layer has a lower hardness than a layer of the thin-film encapsulation that directly adjoins the first intermediate layer.

7. An organic optoelectronic component comprising:
a substrate, on which a first electrode, thereabove an organic functional layer stack having at least one organic optoelectronic layer, and thereabove a second electrode are arranged;
above the second electrode a thin-film encapsulation; and
between the organic functional layer stack and the thin-film encapsulation in addition to the second electrode at least one first intermediate layer having a different hardness than a directly adjacent layer,
wherein the at least one first intermediate layer is arranged between the second electrode and the thin-film encapsulation,
wherein the at least one first intermediate layer directly adjoins the second electrode and has a greater hardness than the second electrode,
wherein the first intermediate layer has a lower hardness than a layer of the thin-film encapsulation that directly adjoins the first intermediate layer, and
wherein the second electrode comprises Al, Ag, Mg or a combination thereof and the first intermediate layer comprises Ni, Ti, V or a combination thereof.

Assignees

• Osram Oled Gmbh

Inventors

• Popp Michael
• Baisl Richard

Classifications

• H01L51/107

  Electricity · mapped topic

• H01L51/5231

  Electricity · mapped topic

• H01L51/5253 Primary

  Electricity · mapped topic

• H01L2251/558

  Electricity · mapped topic

• H01L2251/303

  Electricity · mapped topic