Organic light emitting device, crosslinking agent compound for organic light emitting device and manufacturing method of the organic light emitting device
AssigneeSamsung Display Co., Ltd.
InventorJunwoo Park
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Abstract
An organic light emitting device of an embodiment of the present disclosure includes a first electrode, a hole transport region, an emission layer, an electron transport region, and a second electrode, stacked one by one, wherein the hole transport region includes a hole transport material derived from a crosslinking agent compound represented by Formula 1. The organic light emitting device may be manufactured through a wet process, and the emission efficiency and driving voltage properties of the organic light emitting device may be improved.
Claims20
An organic light emitting device, comprising:
- a first electrode;
- a hole transport region on the first electrode;
- an emission layer on the hole transport region;
- an electron transport region on the emission layer;
- and
- a second electrode on the electron transport region,
- wherein the hole transport region is derived from a hole transport material comprising a crosslinking agent compound represented by Formula 1:
- and
- wherein in Formula 1, A is a hydrogen atom or a deuterium atom,
- L1 and L2 are each independently a direct linkage or a substituted or unsubstituted methylene group,
- “m” is an integer of 1 to 100, and
- “n1” and “n2” are each independently 1 or 2.
A crosslinking agent compound represented by Formula 1:
- wherein in Formula 1,
- A is a hydrogen atom or a deuterium atom,
- “m” is an integer of 1 to 100,
- L1 and L2 are each independently a direct linkage or a substituted or unsubstituted methylene group, and
- “n1” and “n2” are each independently 1 or 2.
A method of manufacturing an organic light emitting device, the method comprising:
- preparing a first electrode;
- supplying a hole transport material on the first electrode to form a hole transport region;
- forming an emission layer on the hole transport region;
- and
- forming a second electrode on the emission layer,
- wherein the hole transport material comprises a crosslinking agent compound represented by Formula 1:
- and
- wherein in Formula 1,
- A is a hydrogen atom or a deuterium atom,
- “m” is an integer of 1 to 100,
- L1 and L2 are each independently a direct linkage, or a substituted or unsubstituted methylene group, and
- “n1” and “n2” are each independently 1 or 2.
Dependencies are inferred from the claim text.