White organic light emitting device
AssigneeLG Display Co., Ltd.
InventorsJae Il Song, Dong Hyuk Kim, So Yeon Ahn
Life of this patent
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Abstract
Disclosed is a white organic light emitting device in which a lifetime of a device is enhanced. The white organic light emitting device includes a first emission part between a first electrode and a second electrode and a second emission part on the first emission part. At least one among the first and second emission parts includes an emission area control layer. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, a second emission part on the first emission part, and a third emission part on the second emission part. At least one among the first to third emission parts includes an emission area control layer.
Claims30
A white organic light emitting device comprising:
- a first emission part between a first electrode and a second electrode;
- and
- a second emission part on the first emission part,
- wherein at least one among the first emission part and the second emission part comprises at least two emission layers and an emission area control layer (EACL) that provides separation for emission areas of the at least two emission layers and includes a second host different from a first host included in one of the at least two emission layers.
A white organic light emitting device comprising:
- a first emission part between a first electrode and a second electrode;
- a second emission part on the first emission part;
- and
- a third emission part on the second emission part,
- wherein at least one among the first emission part, the second emission part, and the third emission part comprises at least two emission layers and an emission area control layer (EACL) that provides separation for emission areas of the at least two emission layers and includes an emission layer that emits light having a same color as a color of light emitted from one of the at least two emission layers.
A white organic light emitting device comprising:
- a first emission part between a first electrode and a second electrode;
- and
- a second emission part on the first emission part,
- wherein at least one among the first emission part and the second emission part comprises at least two emission layers and a layer that causes emission areas of the at least two emission layers to be separated from each other.
Dependencies are inferred from the claim text.