# US 11,993,619 B2 · Nitrogen-containing compound, color conversion film including same, and backlight unit and display device including same

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- Number: US 11,993,619 B2
- Document ID: US11993619B2
- Status: Granted
- Kind: B2
- Application number: 16/634,102
- Filed: 2018-12-24
- Published: 2020-07-02
- Granted: 2024-05-28
- Earliest claimed: 2017-12-27
- Assignees: LG Chem, Ltd.
- Applicants: LG Chem, Ltd.
- Inventors: Hye Mi Oh; Dong Mok Shin
- Web page: https://patentgrep.com/patent/US11993619B2

## CPC

- C07F 5/022: {without C-boron linkages}
- C08J 5/18: Manufacture of films or sheets
- C08K 5/55: Boron-containing compounds {(C08K5/0091 takes precedence)}
- C09K 11/06: containing organic luminescent materials
- G02B 5/20: Filters (polarising elements G02B5/30)
- G02B 6/005: {provided by one optical element, or plurality thereof, placed on the light output side of the light guide}
- G02B 6/0061: {to provide homogeneous light output intensity}
- G02F 1/1335: Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02B 6/0031: {Reflecting element, sheet or layer}
- G02B 6/0046: {Tapered light guide, e.g. wedge-shaped light guide}
- G02B 6/0055: {Reflecting element, sheet or layer}
- C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22)
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

Provided are a nitrogen-containing ring compound of the following Chemical Formula 1: and a color conversion film, a backlight unit and a display device including the same.

## Claims

### Claim 1

A compound of the following Chemical Formula 1:
wherein in Chemical Formula 1:
R2 and R5 are identical to or different from one another, and are each independently hydrogen, deuterium or a cyano group;
R1, R3, R4, and R6 are identical to or different from one another, and are each independently a cycloalkyl group substituted with a phenyl group;
R7 is
or
and
X1 and X2 are F,
wherein, when one of R2 or R5 is hydrogen, the remainder is a cyano group.

### Claim 2 (depends on 1)

The compound of claim 1, wherein the compound of Chemical Formula 1 has a 1 nm to 100 nm lower maximum emission peak than a compound wherein R1 to R7, X1 and X2 are the same as in the compound of Chemical Formula 1 except that R7 is directly bonded to the core structure without the NH linker.

### Claim 3 (depends on 1)

The compound of claim 1, wherein the compound of Chemical Formula 1 has a 1 nm to 100 nm lower maximum absorption peak than a compound wherein R1 to R7, X1 and X2 are the same as in the compound of Chemical Formula 1 except that R7 is directly bonded to the core structure without the NH linker.

### Claim 4 (depends on 1)

A color conversion film comprising:
a resin matrix; and
the compound according to claim 1 dispersed in the resin matrix.

### Claim 5 (depends on 4)

A backlight unit comprising the color conversion film according to claim 4.

### Claim 6 (depends on 5)

A display device comprising the backlight unit according to claim 5.