US 12,704,783 B2 · Method for preparing pixel define layer

Abstract

The present disclosure provides a method of manufacturing a pixel definition layer that reduces the touch defect rate of a panel by preventing interference between electrodes that becomes the cause of a pixel defect in the pixel definition layer. Specifically, the coating film formed by containing the colorant according to the present disclosure and treating the same at a high temperature during post-baking treatment has high optical density (OD) per thickness, and has a low permittivity constant of 5.0 or less even when the measurement Hz changes, and the change is also small.

A method for preparing a pixel defining layer comprising application and coating;

pre-baking;
exposure to light;
developing;
and post-baking of a photosensitive composition, which comprises a cardo-based binder resin;
a reactive unsaturated compound;
a photoinitiator;
and a colorant,
wherein the cardo-based binder resin consists of a compound represented by Formula 1,
wherein the colorant is included in an amount of 15% to 35 wt % based on the total amount of the photosensitive composition, and
wherein after the post-baking, the coating film has an optical density of 0.8/μm to 1.3/μm, and a permittivity of 5.0 or less:
in Formula 1 above,
1) R1 and R2 are each independently hydrogen;
deuterium;
a halogen;
a C6-30 aryl group;
a C2-30 heterocyclic group including at least one heteroatom among O, N, S, Si, and P;
a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
a C1-20 alkyl group;
a C2-20 alkenyl group;
a C2-20 alkynyl group;
a C1-20 alkoxy group;
a C6-30 aryloxy group;
a fluorenyl group;
a carbonyl group;
an ether group;
or a C1-20 alkoxycarbonyl group,
2) R1 and R2 may form a ring with a neighboring group(s),
3) m and n are each independently an integer of 0 to 4,
4) A1 and A2 are each independently Formula 2 or Formula 3:
in Formula 2 and Formula 3,
4-1) * represents a binding part,
4-2) R3 to R6 are each independently hydrogen;
deuterium;
a halogen;
a C6-30 aryl group;
a C2-30 heterocyclic group including at least one heteroatom among O, N, S, Si, and P;
a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
a C1-20 alkyl group;
a C2-20 alkenyl group;
a C2-20 alkynyl group;
a C1-20 alkoxy group;
a C6-30 aryloxy group;
a fluorenyl group;
a carbonyl group;
an ether group;
or a C1-20 alkoxycarbonyl group,
4-3) R3 to R6 may form a ring with a neighboring group(s),
4-4) Y1 and Y2 are each independently Formula 6 or Formula 7:
in Formula 6 and Formula 7,
4-4-1) * represents a binding position,
4-4-2) R9 is hydrogen or methyl,
4-4-3) R10 to R13 are each independently hydrogen;
deuterium;
a halogen;
a C6-30 aryl group;
a C2-30 heterocyclic group including at least one heteroatom among O, N, S, Si, and P;
a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
a C1-20 alkyl group;
a C2-20 alkenyl group;
a C2-20 alkynyl group;
a C1-20 alkoxy group;
a C6-30 aryloxy group;
a fluorenyl group;
a carbonyl group;
an ether group;
or a C1-20 alkoxycarbonyl group,
4-4-4) L1 to L3 are each independently a single bond, a fluorenylene group;
C2-30 alkylene;
C6-30 arylene;
a C2-30 heterocyclic ring;
C1-30 alkoxylene, C2-30 alkyleneoxy;
C6-30 aryloxy;
or C2-30 polyethyleneoxy,
4-4-5) q and r are each independently an integer of 0 to 3;
with the proviso that q+r=3, and
5) the ratio of Formula 2 and Formula 3 in the polymer chain of the resin including a repeating unit represented by Formula 1 above is 9:1 to 1:9,
6) X1 is a single bond;
O;
CO;
SO2;
CR′R″;
SiR′R″;
Formula 4;
or Formula 5,
6-1) R′ and R″ are each independently hydrogen;
deuterium;
a halogen;
a C6-30 aryl group;
a C2-30 heterocyclic group including at least one heteroatom among O, N, S, Si, and P;
a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
a C1-20 alkyl group;
a C2-20 alkenyl group;
a C2-20 alkynyl group;
a C1-20 alkoxy group;
a C6-30 aryloxy group;
a fluorenyl group;
a carbonyl group;
an ether group;
or a C1-20 alkoxycarbonyl group,
6-2) R′ and R″ are able to form a ring between neighboring groups,
in Formula 4 and Formula 5
6-3) * represents a binding position,
6-4) R7 and R8 are each independently hydrogen;
deuterium;
a halogen;
a C6-30 aryl group;
a C2-30 heterocyclic group including at least one heteroatom among O, N, S, Si, and P;
a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
a C1-20 alkyl group;
a C2-20 alkenyl group;
a C2-20 alkynyl group;
a C1-20 alkoxy group;
a C6-30 aryloxy group;
a fluorenyl group;
a carbonyl group;
an ether group;
or a C1-20 alkoxycarbonyl group,
6-5) o and p are each independently an integer of 0 to 4,
7) X2 is a C6-30 aryl group;
a C2-30 heterocyclic group including at least one heteroatom among O, N, S, Si, and P;
a fused ring group of a C6-30 aliphatic ring and a C6-30 aromatic ring;
a C1-20 alkyl group;
a C2-20 alkenyl group;
a C2-20 alkynyl group;
a C1-20 alkoxy group;
a C6-30 aryloxy group;
a fluorenylene group;
a carbonyl group;
an ether group;
or a C1-20 alkoxycarbonyl group, and
8) the R′, R″, X2, L1 to L3, R1 to R8, and R10 to R13 may each be further substituted with one or more substituents selected from the group consisting of deuterium;
a halogen;
a silane group substituted or unsubstituted with a C1-30 alkyl group or C6-30 aryl group;
a siloxane group;
a boron group;
a germanium group;
a cyano group;
an amino group;
a nitro group;
a C1-30 alkylthio group;
a C1-30 alkoxy group;
a C6-30 arylalkoxy group;
a C1-30 alkyl group;
a C2-30 alkenyl group;
a C2-30 alkynyl group;
a C6-30 aryl group;
a C6-30 aryl group substituted with deuterium;
a fluorenyl group;
a C2-30 heterocyclic group including at least one heteroatom among O, N, S, Si, and P;
a C3-30 alicyclic group;
a C7-30 arylalkyl group;
a C8-30 arylalkenyl group;
and a combination thereof;
or may form a ring between the neighboring substituents.

151 more elements

Method for preparing pixel define layer

Life of this patent

Method for preparing pixel define layer

Life of this patent

Abstract

Claims17