Metal complex and color conversion film comprising same

Patent metadata

Field	Value
Publication number	US-10150911-B2
Application number	US-201515540474-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	Jan 27, 2015
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

The present specification relates to a novel compound, and a color conversion film, a backlight unit, and a display device, comprising the same.

First claim

The invention claimed is:

1. A compound represented by the following Chemical Formula 1:

in Chemical Formula 1,
L 1 is a direct bond; a substituted or unsubstituted alkylene group; or a substituted or unsubstituted arylene group,
X 1 is CR 12 R 13 , NR 14 , O, or S,
Y 1 is a direct bond, CR 15 R 16 , or O,
R 1 to R 16 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a carbonyl group; a carboxyl group; an ester group; an imide group; an amide group; a sulfonate group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted amine group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or any adjacent two of R 7 to R 10 are optionally linked to each other to form a substituted or unsubstituted hydrocarbon ring; or a substituted or unsubstituted hetero ring, and m is an integer of 1 to 3.

2. The compound of claim 1 , wherein the compound represented by Chemical Formula 1 is represented by the following Chemical Formula 2:

in Chemical Formula 2,
the definitions of L 1 , X 1 , Y 1 , R 1 to R 3 , R 5 to R 11 , and m are the same as those in Chemical Formula 1,
L 2 is a direct bond; a substituted or unsubstituted alkylene group; or a substituted or unsubstituted arylene group,
X 2 is CR 23 R 24 , NR 25 , O, or S,
Y 2 is a direct bond, CR 26 R 27 , or O,
R 18 to R 27 are the same as or different from each other, and are each independently hydrogen; deuterium; a halogen group; a nitrile group; a nitro group; a carbonyl group; a carboxyl group; an ester group; an imide group; an amide group; a sulfonate group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted alkoxy group; a substituted or unsubstituted aryloxy group; a substituted or unsubstituted alkylthioxy group; a substituted or unsubstituted arylthioxy group; a substituted or unsubstituted alkylsulfoxy group; a substituted or unsubstituted arylsulfoxy group; a substituted or unsubstituted alkenyl group; a substituted or unsubstituted silyl group; a substituted or unsubstituted boron group; a substituted or unsubstituted arylphosphine group; a substituted or unsubstituted phosphine oxide group; a substituted or unsubstituted amine group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group, or any adjacent two of R 18 to R 21 are optionally linked to each other to form a substituted or unsubstituted hydrocarbon ring; or a substituted or unsubstituted hetero ring, and n is an integer of 1 to 3.

3. The compound of claim 1 , wherein in the compound represented by Chemical Formula 1, a maximum light emission peak in a film state is present within 520 nm to 550 nm.

4. The compound of claim 1 , wherein in the compound represented by Chemical Formula 1, a maximum light emission peak in a film state is present within 610 nm to 650 nm.

5. The compound of claim 1 , wherein in the compound represented by Chemical Formula 1, a maximum light emission peak in a film state is present within 610 nm to 650 nm, and a full width at half maximum of the light emission peak is 60 nm or less.

6. The compound of claim 1 , wherein the compound represented by Chemical Formula 1 has quantum efficiency of 0.9 or more.

7. The compound of claim 1 , wherein in the compound represented by Chemical Formula 1, a ratio of an amount of decrease in blue fluorescence to an amount of increase in red fluorescence is 0.96 or more in a film state during a measurement of a brightness spectrum when a blue backlight has a maximum light emission wavelength of 450 nm, and a blue LED light has a luminosity of 600 nit.

8. The compound of claim 1 , wherein R 1 to R 6 are the same as or different from each other, and are each independently hydrogen; a halogen group; a nitrile group; a sulfonate group; a carboxyl group; a substituted or unsubstituted alkyl group; a substituted or unsubstituted cycloalkyl group; a substituted or unsubstituted aryl group; or a substituted or unsubstituted heterocyclic group.

9. The compound of claim 1 , wherein any adjacent two of R 7 to R 10 are linked to each other to form a substituted or unsubstituted hydrocarbon ring.

10. The compound of claim 1 , wherein the compound represented by Chemical Formula 1 is any one selected from the following compounds 1-1 to 1-111:

11. A color conversion film comprising: a resin matrix; and the compound of claim 1 , which is dispersed in the resin matrix.

12. A backlight unit comprising the color conversion film of claim 11 .

13. A display device comprising the backlight unit of claim 12 .

Assignees

• Lg Chemical Ltd

Inventors

• Lee Hoyong
• Koo Kichul
• Kang Minyoung
• Le Duy Hieu

Classifications

• C09K2211/1007

  Non-condensed systems · CPC title

• B32B17/10669

  Luminescent agents · CPC title

• C09K11/06 Primary

  containing organic luminescent materials · CPC title

• C09B23/04

  one >CH- group, e.g. cyanines, isocyanines, pseudocyanines · CPC title

• C09K2211/1092

  containing sulfur as the only heteroatom · CPC title