Patent application EP20178473A (EP), filed 2020-06-05
Publication number: EP3754736A1
Title: ORGANIC ELECTROLUMINESCENCE DEVICE AND FUSED POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
Abstract: [0001]    An organic electroluminescence device of the embodiments includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency and long life:

<img class="EMIRef" id="686600345-ia01" />
IPC codes: C07F   5/    02            A I
C09K  11/    06            A I
H10K  99/    00            A I
Claims: number: 1
text: An organic electroluminescence device comprising:
number: 2
text: The organic electroluminescence device of claim 1, wherein the fused polycyclic compound represented by Formula 1 is represented by any one among Formula 2-1 to Formula 2-3:
number: 3
text: The organic electroluminescence device of claim 1, wherein the fused polycyclic compound represented by Formula 1 is represented by any one among Formula 3-1 to Formula 3-5:
number: 4
text: The organic electroluminescence device of any one of claims 1 to 3, wherein Ar<3> and Ar<4> are each independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group.
number: 5
text: The organic electroluminescence device of any one of claims 1 to 4, wherein R<3> is a substituted or unsubstituted amino group, a substituted or unsubstituted oxy group, a substituted or unsubstituted thio group, or a substituted or unsubstituted phenyl group, and each of a plurality of R<3> groups is optionally combined with an adjacent group to form a ring.
number: 6
text: The organic electroluminescence device of any one of claims 1 to 5, wherein R<4> is a hydrogen atom, a halogen atom, a substituted or unsubstituted methyl group, or a substituted or unsubstituted phenyl group.
number: 7
text: The organic electroluminescence device of any one of claims 1 to 6, wherein the fused polycyclic compound is selected among compounds in Compound Group 1:
number: 9
text: The organic electroluminescence device of any one of claims 1 to 8,
wherein the emission layer is a delayed fluorescence emission layer comprising a host and a dopant, and
wherein the dopant is the fused polycyclic compound.
number: 10
text: A fused polycyclic compound represented by the following Formula 1:
Office action: search_report, dated 2020-12-23
Rejection reasons: novelty_epc_54
Prior art cited: ref_id: - CHEM. COMMUN., vol. 51, 2015, pages 9443 - 9446
ref_type: npl
severity: background
ref_id: - ADV. FUNCT. MATER., vol. 28, 2018, pages 1802031
ref_type: npl
severity: background
ref_id: WO2018212169A1
ref_type: patent
severity: background
ref_id: WO2018212169
ref_type: patent
severity: novelty_destroying
Final disposition: pending (2020-12-23)