Light-emitting device including organometallic compound, electronic apparatus including the light-emitting device, and the organometallic compound

Patent metadata

Field	Value
Publication number	US-2025311614-A1
Application number	US-202519018211-A
Country	US
Kind code	A1
Filing date	Jan 13, 2025
Priority date	Apr 1, 2024
Publication date	Oct 2, 2025
Grant date	—

Abstract

Embodiments provide an organometallic compound, a light-emitting device including the organometallic compound, an electronic apparatus including the light-emitting device, and an electronic equipment including the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode including an emission layer, and the organometallic compound represented by Formula 1, which is explained in the specification:

First claim

What is claimed is:

1 . A light-emitting device comprising:
a first electrode; a second electrode facing the first electrode; an interlayer between the first electrode and the second electrode and including an emission layer; and an organometallic compound represented by Formula 1:

wherein in Formulae 1 and 2,
M is platinum (Pt), iridium (Ir), palladium (Pd), cobalt (Co), gold (Au), nickel (Ni), silver (Ag), or copper (Cu),
CY 1 to CY 4 are each independently a C 3 -C 60 carbocyclic group unsubstituted or substituted with at least one R 10a or a C 1 -C 60 heterocyclic group unsubstituted or substituted with at least one R 10a ,
X 1 is C,
X 2 to X 4 are each independently C or N,
L 1 to L 3 are each independently a single bond, *—N(R 7 )—*′, *—B(R 7 )—*′, *—P(R 7 )—*′, *—C(R 7 )(R 8 )—*′, *—Si(R 7 )(R 8 )—*′, *—Ge(R 7 )(R 8 )—*′, *—S—*′ *—Se—*′ *—O—*′ *—C(═O)—*′, *—S(═O)—*—S(═O) 2 —*′, or *—C(═S)—*′,
a1 to a4 are each independently an integer from 0 to 10,
R 1 to R 4 , R 51 to R 55 , R 61 , R 62 , R 7 , and R 8 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, a C 1 -C 60 alkyl group unsubstituted or substituted with at least one R 10a , a C 2 -C 60 alkenyl group unsubstituted or substituted with at least one R 10a , a C 2 -C 60 alkynyl group unsubstituted or substituted with at least one R 10a , a C 1 -C 60 alkoxy group unsubstituted or substituted with at least one R 10a , a C 3 -C 60 carbocyclic group unsubstituted or substituted with at least one R 10a , a C 1 -C 60 heterocyclic group unsubstituted or substituted with at least one R 10a , a C 6 -C 60 aryloxy group unsubstituted or substituted with at least one R 10a , a C 6 -C 60 arylthio group unsubstituted or substituted with at least one R 10a , a C 7 -C 60 arylalkyl group unsubstituted or substituted with at least one R 10a , a C 2 -C 60 heteroarylalkyl group unsubstituted or substituted with at least one R 10a , —C(Q 1 )(Q 2 )(Q 3 ), —Si(Q 1 )(Q 2 )(Q 3 ), —N(Q 1 )(Q 2 ), —B(Q 1 )(Q 2 ), —C(═O)(Q 1 ), —S(═O) 2 (Q 1 ), —P(═O)(Q 1 )(Q 2 ), or a group represented by Formula 2,
at least one of R 51 to R 55 is each independently a group represented by Formula 2,
R 10a is:
deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, or a nitro group;
a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, or a C 1 -C 60 alkoxy group, each unsubstituted or substituted with deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, a C 3 -C 60 carbocyclic group, a C 1 -C 60 heterocyclic group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 7 -C 60 arylalkyl group, a C 2 -C 60 heteroarylalkyl group, —Si(Q 11 )(Q 12 )(Q 13 ), —N(Q 11 )(Q 12 ), —B(Q 11 )(Q 12 ), —C(═O)(Q 11 ), —S(═O) 2 (Q 11 ), —P(═O)(Q 11 )(Q 12 ), or a combination thereof;
a C 3 -C 60 carbocyclic group, a C 1 -C 60 heterocyclic group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 7 -C 60 arylalkyl group, or a C 2 -C 60 heteroarylalkyl group, each unsubstituted or substituted with deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, a C 1 -C 60 alkoxy group, a C 3 -C 60 carbocyclic group, a C 1 -C 60 heterocyclic group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 7 -C 60 arylalkyl group, a C 2 -C 60 heteroarylalkyl group, —Si(Q 21 )(Q 22 )(Q 23 ), —N(Q 21 )(Q 22 ), —B(Q 21 )(Q 22 ), —C(═O)(Q 21 ), —S(═O) 2 (Q 21 ), —P(═O)(Q 21 )(Q 22 ), or a combination thereof; or
—Si(Q 31 )(Q 32 )(Q 33 ), —N(Q 31 )(Q 32 ), —B(Q 31 )(Q 32 ), —C(═O)(Q 31 ), —S(═O) 2 (Q 31 ), or —P(═O)(Q 31 )(Q 32 ),
Q 1 to Q 3 , Q 11 to Q 13 , Q 21 to Q 23 and Q 31 to Q 33 are each independently: hydrogen; deuterium; —F; —C 1 ; —Br; —I; a hydroxyl group; a cyano group; a nitro group; or a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, a C 1 -C 60 alkoxy group, a C 3 -C 60 carbocyclic group, or a C 1 -C 60 heterocyclic group, each unsubstituted or substituted with deuterium, —F, a cyano group, a C 1 -C 60 alkyl group, a C 1 -C 60 alkoxy group, a phenyl group, a biphenyl group, or a combination thereof, and
* in Formula 2 indicates a binding site to an adjacent atom.

2 . The light-emitting device of claim 1 , wherein
the first electrode is an anode, the second electrode is a cathode, the interlayer further includes:
a hole transport region between the first electrode and the emission layer; and
an electron transport region between the emission layer and the second electrode,
the hole transport region includes a hole injection layer, a hole transport layer, an emission auxiliary layer, an electron-blocking layer, or a combination thereof, and the electron transport region includes a hole-blocking layer, an electron transport layer, an electron injection layer, an electron control layer, or a combination thereof.

3 . The light-emitting device of claim 1 , wherein the interlayer includes the organometallic compound.

4 . The light-emitting device of claim 1 , wherein the emission layer includes the organometallic compound.

5 . The light-emitting device of claim 1 , wherein
the emission layer includes a host and a dopant, and the dopant includes the organometallic compound.

6 . An electronic apparatus comprising the light-emitting device of claim 1 .

7 . The electronic apparatus of claim 6 , further comprising:
a color filter, a color conversion layer, a touch screen layer, a polarizing layer, or a combination thereof.

8 . An electronic equipment comprising the light-emitting device of claim 1 .

9 . The electronic equipment of claim 8 , wherein the electronic equipment is a flat panel display, a curved display, a computer monitor, a medical monitor, a television, a billboard, an indoor light, an outdoor light, a signal light, a head-up display, a fully transparent display, a partially transparent display, a flexible display, a rollable display, a foldable display, a stretchable display, a laser printer, a telephone, a mobile phone, a tablet computer, a phablet, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a camcorder, a viewfinder, a micro display, a three-dimensional (3D) display, a virtual reality display, an augmented reality display, a vehicle, a video wall with multiple displays tiled together, a theater screen, a stadium screen, a phototherapy device, or a signboard.

10 . An organometallic compound represented by Formula 1:

wherein in Formulae 1 and 2,
M is platinum (Pt), iridium (Ir), palladium (Pd), cobalt (Co), gold (Au), nickel (Ni), silver (Ag), or copper (Cu),
CY 1 to CY 4 are each independently a C 3 -C 60 carbocyclic group unsubstituted or substituted with at least one R 10a or a C 1 -C 60 heterocyclic group unsubstituted or substituted with at least one R 10a ,
X 1 is C,
X 2 to X 4 are each independently C or N,
L 1 to L 3 are each independently a single bond, *—N(R 7 )—*′, *—B(R 7 )—*′, *—P(R 7 )—*′, *—C(R 7 )(R 8 )—*′, *—Si(R 7 )(R 8 )—*′, *—Ge(R 7 )(R 8 )—*′, *—S—*′ *—Se—*′ *—O—*′ *—C(═O)—*′, *—S(═O)—*—S(═O) 2 —*′, or *—C(═S)—*′,
a1 to a4 are each independently an integer from 0 to 10,

Assignees

• Samsung Display Co Ltd

Inventors

• Kang Sunwoo

Classifications

• C09K2211/185

  of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title

• H10K50/12

  comprising dopants · CPC title

• H10K85/346 Primary

  comprising platinum · CPC title

• H10K85/658

  Organoboranes · CPC title

• C09K11/06

  containing organic luminescent materials · CPC title