Compound, binder resin, negative-type photosensitive resin composition, and display device comprising black bank formed using same

Patent metadata

Field	Value
Publication number	US-2022348716-A1
Application number	US-202017640710-A
Country	US
Kind code	A1
Filing date	Nov 4, 2020
Priority date	Nov 8, 2019
Publication date	Nov 3, 2022
Grant date	—

Abstract

The present application relates to a compound of Formula 1, a binder resin, a negative-type photosensitive resin composition, and a display device comprising a black bank formed using same.

First claim

1 . A compound represented by the following Formula 1:

wherein, in the Formula 1,
R1 and R2 are the same as or different from each other, and are each independently hydrogen; —CO-L-R; or —CONR′R″,
L is a substituted or unsubstituted alkenylene group; a substituted or unsubstituted cycloalkenylene group; or a substituted or unsubstituted arylene group,
R, R′, and R″ are the same as or different from each other, and are each independently hydrogen; —COOH; or a substituted or unsubstituted alkyl group,
R3 and R4 are the same as or different from each other, and are each independently hydrogen; or a substituted or unsubstituted alkyl group,
r3 and r4 are an integer from 0 to 4, and when r3 is 2 or higher, R3s are the same as or different from each other, and when r4 is 2 or higher, R4s are the same as or different from each other,
L1 and L2 are the same as or different from each other, and are each independently a substituted or unsubstituted alkylene group,
M1 and M2 are -M1′-M2′-M3′-,
M1′, M2′ and M3′ are the same as or different from each other, and are each independently a direct bond; —SO 2 —; a substituted or unsubstituted alkylene group; or a substituted or unsubstituted arylene group, and
n is an integer from 1 to 30.

2 . The compound of claim 1 , wherein M1′ and M3′ are the same as or different from each other, and are each independently a direct bond; or a substituted or unsubstituted arylene group, and
M2′ is a direct bond; —SO 2 —; or a substituted or unsubstituted arylene group.

3 . The compound of claim 1 , wherein M1 and M2 are each represented by the following Formula 2:

in the Formula 2,
means a moiety linked to the Formula 1,
M2′ is as defined in claim 1 ,
R13 and R14 are the same as or different from each other, and are each independently hydrogen; a hydroxyl group; or a substituted or unsubstituted alkyl group, and
r13 and r14 are an integer from 1 to 4, and when r13 is 2 or higher, R13s are the same as or different from each other, and when r14 is 2 or higher, R14s are the same as or different from each other.

4 . The compound of claim 1 , wherein R1 and R2 are hydrogen.

5 . The compound of claim 1 , wherein R1 is —CO-L-R; or —CONR′R″, and
L, R, R′, and R″ are as defined in claim 1 .

6 . The compound of claim 1 , wherein the compound has a weight average molecular weight of 3,000 g/mol to 8,000 g/mol.

7 . A binder resin comprising the compound of claim 1 .

8 . A negative-type photosensitive resin composition comprising: the binder resin of claim 7 ; a pigment dispersion; a polyfunctional monomer; a photoinitiator; and a solvent.

9 . The negative-type photosensitive resin composition of claim 8 , further comprising a surfactant.

10 . The negative-type photosensitive resin composition of claim 8 , wherein the pigment dispersion comprises a black organic pigment.

11 . The negative-type photosensitive resin composition of claim 8 , wherein based on 100 parts by weight of the negative-type photosensitive resin composition, the negative-type photosensitive resin composition comprises:
10 to 40 parts by weight of the binder resin; 20 to 40 parts by weight of the pigment dispersion; 0.1 to 10 parts by weight of the polyfunctional monomer; 0.1 to 5 parts by weight of the photoinitiator; and 20 to 50 parts by weight of the solvent.

12 . The negative-type photosensitive resin composition of claim 8 , wherein a coating film formed from the negative-type photosensitive resin composition has a taper angle of 150 or more and 300 or less when tested with the coating film has a thickness of 1.5 μm.

13 . A display device comprising a black bank formed from the negative-type photosensitive resin composition of claim 8 .

Assignees

• Lg Chemical Ltd

Inventors

• An Junhyun
• Park Eun Seok
• Kim Yongmi
• Lim Minyoung
• Park Sumin

Classifications

• C08G73/024 Primary

  Polyamines containing oxygen in the form of ether bonds in the main chain · CPC title

• C08G73/0246

  Polyamines containing other atoms than carbon, hydrogen, nitrogen or oxygen in the main chain · CPC title

• C08G73/02 Primary

  Polyamines · CPC title

• G03F7/038

  Macromolecular compounds which are rendered insoluble or differentially wettable (G03F7/075 takes precedence; macromolecular azides G03F7/012; macromolecular diazonium compounds G03F7/021) · CPC title

• C07C217/80 Primary

  having amino groups and etherified hydroxy groups bound to carbon atoms of non-condensed six-membered aromatic rings · CPC title