Back to results
US 12,359,119 B2Granted
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
AssigneeSamsung Display Co., Ltd.
InventorMiyazaki Yuuki
Life of this patent
Estimating the term…
Abstract
An organic electroluminescence device includes: 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 emission layer includes a polycyclic compound represented by Formula 1.
Claims16
An organic electroluminescence 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 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/AI, Mo, Ti, In, Sn, Zn, a compound of two or more thereof, a mixture of two or more thereof, and oxides thereof, and
- wherein the emission layer comprises a polycyclic compound represented by the following Formula 1:
- in Formula 1,
- Y is P, or P═O,
- Z1 and Z2 are each independently B,
- ring A to ring C are each independently a substituted or unsubstituted aryl ring having 6 to 30 carbon atoms that form a ring, or a substituted or unsubstituted heteroaryl ring having 2 to 30 carbon atoms that form a ring,
- X1 and X2 are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms that form a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms that form a ring,
- at least one substituent bonded to at least one selected from ring A to ring C, X1, and X2 is —Si(Ra)3 or —Si(Ra)2—, and
- Ra is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms that form a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms that form a ring, and
- wherein the polycyclic compound emits thermally activated delayed fluorescence.
13 more elements
A polycyclic compound represented by the following Formula 1:
- in Formula 1,
- Y is P, or P═O,
- Z1 and Z2 are each independently B,
- ring A to ring C are each independently a substituted or unsubstituted aryl ring having 6 to 30 carbon atoms that form a ring, or a substituted or unsubstituted heteroaryl ring having 2 to 30 carbon atoms that form a ring,
- X1 and X2 are each independently a substituted or unsubstituted aryl group having 6 to 30 carbon atoms that form a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms that form a ring,
- at least one substituent bonded to at least one selected from ring A to ring C, X1, and X2 is —Si(Ra)3 or —Si(Ra)2—, and
- Ra is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms that form a ring, or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms that form a ring, and
- wherein the polycyclic compound emits thermally activated delayed fluorescence.
5 more elements
Dependencies are inferred from the claim text.