Patent application EP20169890A (EP), filed 2020-04-16
Publication number: EP3753995A1
Title: ORGANIC ELECTROLUMINESCENCE DEVICE AND COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
Abstract: An organic electroluminescence device includes a first electrode, a second electrode, and an emission layer between the first electrode and the second electrode, wherein 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, and Zn, or a compound of two or more selected from them, a mixture of two or more selected from them, or oxides thereof, and the emission layer includes a compound represented by Formula 1. Embodiments of the present disclosure exhibit improved emission efficiency and long life characteristics.
IPC codes: C07F   5/    02            A I
C09K  11/    06            A I
H10K  99/    00            A I
C07F   7/    08            A I
C07F   7/    30            A I
Claims: number: 1
text: An organic electroluminescence device, comprising:
number: 2
text: The organic electroluminescence device of claim 1, wherein Formula 1 is represented by Formula 1-1 or Formula 1-2:
number: 3
text: The organic electroluminescence device of claim 1 or claim 2, wherein Formula 2 is represented by Formula 2-1 or Formula 2-2:
number: 4
text: The organic electroluminescence device of claim 2, wherein Formula 1-1 is represented by Formula 1-1A or Formula 1-1B:
number: 5
text: The organic electroluminescence device of claim 2, wherein Formula 1-2 is represented by one selected from Formulae 1-2A to 1-2C:
number: 6
text: The organic electroluminescence device of claim 2, wherein Formula 1-2 is represented by one selected from Formula 1-2D to Formula 1-2F:
number: 7
text: The organic electroluminescence device of any preceding claim, wherein M<1> and M<2> are each independently a substituted or unsubstituted benzene ring, a substituted or unsubstituted naphthalene ring, or a substituted or unsubstituted dibenzothiophene ring.
number: 8
text: The organic electroluminescence device of any preceding claim, wherein M<3> and M<4> are substituted or unsubstituted benzene rings.
number: 9
text: The organic electroluminescence device of any preceding claim, wherein the compound represented by Formula 1 is a material to emit thermally activated delayed fluorescence.
number: 10
text: The organic electroluminescence device of any preceding claim, wherein Formula 1 is at least one selected from Compound Group 1:
number: 12
text: The organic electroluminescence device of any preceding claim, wherein the emission layer is to emit delayed fluorescence.
number: 13
text: The organic electroluminescence device of any preceding claim, wherein the emission layer is a delayed fluorescence emission layer comprising a host and a dopant, and
the dopant comprises the compound represented by Formula 1.
number: 14
text: The organic electroluminescence device of any preceding claim, wherein the emission layer is to emit blue light having a central wavelength of 430 nm to 490 nm.
Office action: search_report, dated 2020-12-23
Prior art cited: ref_id: WO2018216990A1
ref_type: patent
severity: background
ref_id: US2020176679A1
ref_type: patent
severity: background
ref_id: US2018019415A1
ref_type: patent
severity: background
ref_id: US2018301629A1
ref_type: patent
severity: background
ref_id: US2018069182A1
ref_type: patent
severity: background
ref_id: US2018019415
ref_type: patent
severity: background
ref_id: US2018069182
ref_type: patent
severity: background
ref_id: US2018301629
ref_type: patent
severity: background
ref_id: WO2018216990
ref_type: patent
severity: background
ref_id: US2020176679
ref_type: patent
severity: background
Final disposition: pending (2020-12-23)