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US 2022/0045287 A1Published application
Organic electroluminescence device
AssigneeSamsung Display Co., Ltd.
InventorsHyeongmin KIM, Heechoon AHN, Hyunah UM, Yeseul LEE, Hyoyoung LEE, Yirang IM, Seowon CHO
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Abstract
An organic electroluminescence device of the present disclosure includes a first electrode, a second electrode oppositely disposed to the first electrode, and multiple organic layers disposed between the first electrode and the second electrode, wherein at least one organic layer among the multiple organic layers includes a fused polycyclic compound represented by Formula 1, thereby showing improved emission efficiency.
Claims20
An organic electroluminescence device, comprising:
- a first electrode;
- a second electrode opposite the first electrode;
- and
- multiple organic layers between the first electrode and the second electrode,
- wherein at least one organic layer selected from the multiple organic layers comprises a fused polycyclic compound,
- wherein the fused polycyclic compound comprises:
- a nitrogen atom at which a first phenyl group, a second phenyl group, and a third phenyl group are substituted;
- a first silicon atom connecting the first phenyl group and the second phenyl group;
- and
- a second silicon atom connecting the second phenyl group and the third phenyl group, and
- wherein a fourth phenyl group and a fifth phenyl group are each connected with the first silicon atom,
- a sixth phenyl group and a seventh phenyl group are each connected with the second silicon atom,
- a nitrogen-containing substituent is substituted on at least one selected from the first to seventh phenyl groups, and
- the first electrode and the second electrode each independently comprise at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, Zn and Yb, a compound of two or more thereof, a mixture of two or more thereof, or an oxide thereof.
11 more elements
An organic electroluminescence device, comprising:
- a first electrode;
- a second electrode opposite the first electrode;
- and
- multiple organic layers between the first electrode and the second electrode,
- wherein at least one organic layer selected from the multiple organic layers comprises a fused polycyclic compound represented by Formula 1, and
- the first electrode and the second electrode each independently comprise at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, Zn, and Yb, a compound of two or more thereof, a mixture of two or more thereof, or an oxide thereof:
- wherein, in Formula 1,
- X1 to X7 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted alkyl group of 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group of 2 to 30 carbon atoms, a substituted or unsubstituted amine group, a substituted or unsubstituted aryl group of 6 to 30 ring-forming carbon atoms, a substituted or unsubstituted heteroaryl group of 2 to 30 ring-forming carbon atoms, or represented by Formula 2,
- “a” is an integer of 0 to 4,
- “b” and “c” are each independently an integer of 0 to 5,
- “d” is an integer of 0 to 3,
- “e” and “f” are each independently an integer of 0 to 5,
- “g” is an integer of 0 to 4, and
- at least one among X1 to X7 is represented by Formula 2:
- and
- wherein, in Formula 2,
- R1 and R2 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted alkyl group of 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group of 2 to 30 carbon atoms, a substituted or unsubstituted amine group, 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 are optionally combined with an adjacent group to form a ring,
- “p” and “q” are each independently an integer of 0 to 4,
- “W” is a direct linkage, and
- “r” is 0 or 1.
17 more elements
Dependencies are inferred from the claim text.