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US 2018/0294431 A1Published application
Organic el display device
AssigneeJapan Display Inc.
InventorsHironori TOYODA, Takahiro USHIKUBO
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Abstract
An organic EL display device includes an anode, an organic light-emitting unit formed on the anode, and a cathode formed on the organic light-emitting unit and containing In. The organic light-emitting unit includes a light-emitting layer, and an electron injection layer formed between the cathode and the light-emitting layer, and an In concentration in layers of the organic light-emitting unit other than the electron injection layer is equal to or less than one-twentieth that in the cathode.
Claims8
An organic EL display device comprising:
- an anode;
- an organic light-emitting unit formed on the anode;
- and
- a cathode formed on the organic light-emitting unit and containing In, wherein
- the organic light-emitting unit includes
- a light-emitting layer, and
- an electron injection layer formed between the cathode and the light-emitting layer, and
- an In concentration in layers of the organic light-emitting unit other than the electron injection layer is equal to or less than one-twentieth that in the cathode.
5 more elements
An organic EL display device comprising:
- an anode;
- an organic light-emitting unit formed on the anode;
- a cathode formed on the organic light-emitting unit and containing In;
- and
- a cathode buffer layer formed between the cathode and the organic light-emitting unit and containing an alkali metal or an alkaline earth metal as a main component.
2 more elements
Dependencies are inferred from the claim text.