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US 2025/0057039 A1Published application
Light emitting element, compound for the same, and display device including the light emitting element
AssigneeSamsung Display Co., Ltd.
InventorsDONGJUN KIM, BEOMJOON KIM, HANKYU PAK, HYUNBIN PARK, JINYOUNG YUN, HAN NA CHA, SANGHYUN HAN
Life of this patent
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Abstract
A light emitting element including a first electrode, a second electrode on the first electrode, and at least one functional layer is provided. The functional layer includes a compound having two phenylene groups connected to a cycloalkyl group, and also includes a phosphine oxide group and a triazine group. The compound may be between the first electrode and the second electrode.
Claims20
A light emitting element comprising:
- a first electrode;
- a second electrode on the first electrode;
- and
- at least one functional layer comprising a compound represented by Formula 1, and between the first electrode and the second electrode:
- wherein, in Formula 1,
- Cy is a substituted or unsubstituted cycloalkyl group of 3 to 30 ring-forming carbon atoms,
- L is a substituted or unsubstituted arylene group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group of 2 to 30 ring-forming carbon atoms,
- R1 to R4 are each independently a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms,
- Ra and Rb are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted thio group, a substituted or unsubstituted oxy group, a substituted or unsubstituted amine group, a substituted or unsubstituted boron group, a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 30 ring-forming carbon atoms, and/or combined with an adjacent group to form a ring,
- “a” and “b” are each independently an integer of 0 to 4, and
- “l” is 1 or 2.
8 more elements
A compound represented by Formula 1:
- and
- in Formula 1,
- Cy is a substituted or unsubstituted cycloalkyl group of 3 to 30 ring-forming carbon atoms,
- L is a substituted or unsubstituted arylene group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group of 2 to 30 ring-forming carbon atoms,
- R1 to R4 are each independently a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms,
- Ra and Rb are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted thio group, a substituted or unsubstituted oxy group, a substituted or unsubstituted amine group, a substituted or unsubstituted boron group, a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 30 ring-forming carbon atoms, and/or combined with an adjacent group to form a ring,
- “a” and “b” are each independently an integer of 0 to 4, and
- “l” is 1 or 2.
5 more elements
A display device comprising:
- a base layer;
- a circuit layer on the base layer;
- and
- a display element layer comprising a light emitting element, and on the circuit layer,
- wherein the light emitting element comprises a first electrode, a second electrode opposite to the first electrode, and at least one functional layer between the first electrode and the second electrode, and
- the at least one functional layer comprises a compound represented by Formula 1:
- and
- in Formula 1,
- Cy is a substituted or unsubstituted cycloalkyl group of 3 to 30 ring-forming carbon atoms,
- L is a substituted or unsubstituted arylene group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group of 2 to 30 ring-forming carbon atoms,
- R1 to R4 are each independently a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms,
- Ra and Rb are each independently a hydrogen atom, a deuterium atom, a halogen atom, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted thio group, a substituted or unsubstituted oxy group, a substituted or unsubstituted amine group, a substituted or unsubstituted boron group, a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms, or a substituted or unsubstituted heteroaryl group of 2 to 30 ring-forming carbon atoms, and/or combined with an adjacent group to form a ring,
- “a” and “b” are each independently an integer of 0 to 4, and
- “l” is 1 or 2.
11 more elements
Dependencies are inferred from the claim text.