公开(公告)号：US11561469B2

公开(公告)日：2023-01-24

申请号：US16500881

申请日：2018-04-06

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro Furue ,  Yuki Miyaishi ,  Shiyuko Nakamura

IPC: G03F7/023 ,  G03F7/20 ,  G03F7/032 ,  H05B33/10 ,  H05B33/22

Abstract: A black positive-type photosensitive resin composition with high sensitivity is provided. The photosensitive resin composition of the invention includes (A) a binder resin, (B) a quinonediazide adduct of a phenol compound having 3 or more phenolic hydroxyl groups (hereunder also referred to as “trivalent or greater phenol compound”, and (C) a black coloring agent, wherein the quinonediazide adduct (B) includes (b1) a quinonediazide adduct wherein one of the hydroxyl groups of the phenolic hydroxyl groups of the trivalent or greater phenol compound is replaced by a structure represented by formula (I) or formula (II), and (b2) a quinonediazide adduct wherein two of the hydroxyl groups of the phenolic hydroxyl groups of the trivalent or greater phenol compound are replaced by structures represented by formula (I) or formula (II), and the total of (b1) and (b2) is at least 60 mol % of the entirety of (B). Ra to Rd and * in the formulas are as defined in the Specification.

公开(公告)号：US11650499B2

公开(公告)日：2023-05-16

申请号：US16663778

申请日：2019-10-25

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro Furue ,  Yoshikazu Arai

IPC: G03F7/033 ,  G03F7/004 ,  G03F7/028

CPC classification number: G03F7/033 ,  G03F7/0045 ,  G03F7/028

Abstract: There is provided a highly sensitive colorant-containing photosensitive resin composition that can form an excellent crack resistant cured product for use in the formation of organic EL element barrier ribs. One embodiment of the photosensitive resin composition for use in organic EL element barrier ribs comprises: (A) a binder resin; (B) a phenolic hydroxyl group-containing compound having a molecular weight of 260 to 5,000 and a phenolic hydroxyl group equivalent of 80 to 155; (C) a radiation sensitive compound; and (D) a colorant selected from the group consisting of black dyes and black pigments.

公开(公告)号：US11599023B2

公开(公告)日：2023-03-07

申请号：US16564124

申请日：2019-09-09

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro Furue ,  Yuki Miyaishi

IPC: G03F7/031 ,  G03F7/033 ,  G03F7/004 ,  G03F7/016 ,  G03F7/029

Abstract: There is provided a highly sensitive colorant-containing photosensitive resin composition for use in the formation of organic EL element barrier ribs. In one embodiment, the photosensitive resin composition for an organic EL element barrier rib comprises: (A) a binder resin; (B) at least one low molecular weight organic compound having a molar volume of 130 cm3/mol or less and being selected from the group consisting of aromatic carboxylic acids and compounds each having a plurality of phenolic hydroxyl groups; (C) a radiation sensitive compound; and (D) a colorant selected from the group consisting of black dyes and black pigments.