公开(公告)号：US20220275241A1

公开(公告)日：2022-09-01

申请号：US17637622

申请日：2020-06-09

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro FURUE ,  Yoshikazu ARAI

IPC: C09D163/04 ,  C09D133/14 ,  C09D7/41 ,  C09D7/63 ,  H01L51/52

Abstract: The present invention reduces inhibition of light sensitization of a photosensitive resin composition containing a black dye and increases sensitivity by improving pattern forming ability. The photosensitive resin composition according to one embodiment of the present invention contains a binder resin (A), a radiation-sensitive compound (B), and a dye (C), wherein the dye (C) contains a black dye (C1) and a dye (C2) other than (C1), the dye (C2) has an absorption maximum at a wavelength of 480-550 nm in an wavelength range of 300-800 nm, and, when the absorbance of the dye (C2) at the absorption maximum wavelength is defined as Abs1 and the average absorbance of the dye (C2) at wavelengths 560-600 nm is defined as Abs2, Abs2/Abs1 equals 0.1-1.0.

公开(公告)号：US20200081343A1

公开(公告)日：2020-03-12

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 ,  G03F7/029 ,  G03F7/016 ,  G03F7/004

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.

公开(公告)号：US20200033726A1

公开(公告)日：2020-01-30

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

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：US20180253003A1

公开(公告)日：2018-09-06

申请号：US15755336

申请日：2016-10-19

Applicant: SHOWA DENKO K.K.

Inventor： Kentaro FURUE ,  Yuki MIYAISHI

IPC: G03F7/023 ,  H01L51/50 ,  G03F7/039 ,  H05B33/10 ,  H05B33/22

CPC classification number: G03F7/0236 ,  G03F7/0233 ,  G03F7/0388 ,  G03F7/0392 ,  G03F7/105 ,  H01L27/3246 ,  H01L27/3283 ,  H01L51/50 ,  H05B33/10 ,  H05B33/22

Abstract: Provided is a positive photosensitive resin composition having high sensitivity, high definition, and high adhesiveness and being capable of maintaining blackness and high light-blocking properties, even after a high-temperature curing step, e.g., at 250° C. This positive photosensitive resin composition contains: a binder resin (A); a quinonediazide compound (B); and at least one type of black dye (C) selected from black dyes specified by the color indexes of solvent black 27-47. The black dye (C) is ideally specified by the color index of solvent black 27, 29, or 34. This composition is capable of being suitably used in positive radiation lithography and can be used to form organic EL element partitions and insulating films.

公开(公告)号：US20220326614A1

公开(公告)日：2022-10-13

申请号：US17596046

申请日：2020-06-03

Applicant: SHOWA DENKO K.K.

Inventor： Yasuhiro ISHIDA ,  Kentaro FURUE ,  Yoshikazu ARAI ,  Mitsuhiro IWASAKI ,  Hideo HORIBE

IPC: G03F7/039 ,  H01L51/00 ,  H01L51/52

Abstract: Provided is a high-sensitive photosensitive resin composition which contains a black colorant and by which development and pattern formation are possible even with a low exposure amount. A positive-type photosensitive resin composition according to one embodiment contains: a first resin (A) having a plurality of phenolic hydroxyl groups, at least some of which are protected with an acid-labile group; a second resin (B) having an epoxy group and a phenolic hydroxyl group; at least one colorant (C) selected from the group consisting of a black dye and a black pigment; and a photoacid generator (D).

公开(公告)号：US20200249572A1

公开(公告)日：2020-08-06

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

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.