公开(公告)号：US20230098085A1

公开(公告)日：2023-03-30

申请号：US17794658

申请日：2021-02-08

Applicant: TORAY INDUSTRIES, INC.

Inventor： Satoshi KAMEMOTO ,  Yusuke KOMORI ,  Kazuto MIYOSHI

IPC: H10K71/00 ,  H10K59/122 ,  G03F7/039 ,  G03F7/38

Abstract: An object of the present invention is to provide an organic EL display device which does not undergo the decrease in luminance or pixel shrinkage and has excellent long-term reliability. The present invention is an organic EL display device constituting a cured product of a photosensitive resin composition containing an alkali-soluble resin (A) and a naphthoquinone diazide sulfonic acid ester compound (B), wherein an intensity ratio I(S)/I(TOTAL) is 0.0001 or more and 0.008 or less, where I(S) is a negative secondary ion intensity of sulfur, and I(TOTAL) is a sum total of negative secondary ion intensities of carbon, oxygen, fluorine, silicon and sulfur obtained by time-of-flight secondary ion mass spectrometry of the cured product. Alternatively, the present invention is a method for producing the cured product.

公开(公告)号：US20200033728A1

公开(公告)日：2020-01-30

申请号：US16491497

申请日：2018-03-15

Applicant: TORAY INDUSTRIES, INC.

Inventor： Akihiro ISHIKAWA ,  Kazuto MIYOSHI

IPC: G03F7/038 ,  G03F7/028 ,  G03F7/004 ,  H01L51/50

Abstract: A photosensitive composition containing at least one compound selected from the group of the following (a-1) to (a-3) and containing (b) a photosensitizer: (a-1) an epoxy compound having a C9-C19 long-chain alkyl group, (a-2) a resin having a structure represented by the following general formula (1), and (a-3) a resin having a structure represented by the following general formula (2). A photosensitive composition capable of forming a pixel division layer that has high flexibility and affords excellent light emission reliability to an organic EL display device is provided.

公开(公告)号：US20190386217A1

公开(公告)日：2019-12-19

申请号：US16463729

申请日：2017-11-29

Applicant: TORAY INDUSTRIES, INC.

Inventor： Takeshi ARAI ,  Kazuto MIYOSHI

IPC: H01L51/00 ,  G03F7/037 ,  G03F7/033 ,  G03F7/038

Abstract: The organic EL display device includes at least a transparent electrode, an organic EL layer, and a non-transparent electrode in this order and further includes a black insulating layer, and the non-transparent electrode has a reflectance of 25%±20%.

公开(公告)号：US20190258164A1

公开(公告)日：2019-08-22

申请号：US16333449

申请日：2017-08-22

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yugo TANIGAKI ,  Akihiro ISHIKAWA ,  Kazuto MIYOSHI

IPC: G03F7/038 ,  G03F7/037 ,  G03F7/032 ,  G03F7/023 ,  G03F7/075 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  H01L51/00 ,  H01L27/32 ,  G02F1/1339 ,  G02F1/1335 ,  H01L51/52

Abstract: The present invention provides a negative-type photosensitive resin composition capable of obtaining a cured film suppressing generation of development residues caused by a pigment and having high sensitivity and excellent heat resistance and light blocking capability. A negative-type photosensitive resin composition contains an alkali-soluble resin (A), a radical-polymerizable compound (B), a photopolymerization initiator (C1), and a pigment (D1). In this resin composition, the radical-polymerizable compound (B) contains a flexible chain-containing radical-polymerizable compound (B1), the flexible chain-containing radical-polymerizable compound (B1) contains a compound having (I) a structure derived from a compound having at least three hydroxyl groups in the molecule, (II) at least three ethylenically unsaturated double bond groups, and (III) at least one aliphatic chain, the aliphatic chain has an average molecular weight of 40 to 500, and the content of the pigment (D1) is 5 to 70 mass % of the total solid content.

公开(公告)号：US20180019290A1

公开(公告)日：2018-01-18

申请号：US15546153

申请日：2016-03-07

Applicant: TORAY INDUSTRIES, INC.

Inventor： Takeshi ARAI ,  Satoshi KAMEMOTO ,  Kazuto MIYOSHI

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: The purpose is to provide an organic EL display device which has good sensitivity and is free from the occurrence of luminance decrease or pixel shrinkage, thereby having excellent long-term reliability. In order to achieve the above-described purpose, provided is the following configuration. Namely, an organic EL display device wherein an insulating layer formed on a first electrode is a cured film obtained by curing a photosensitive resin composition; and the residual amount of acid anhydrides contained in the cured film is from 0.003 to 0.04 (inclusive) when the residual amount of aromatic rings contained in the cured film is taken as 1 (the reference value).

公开(公告)号：US20210149304A1

公开(公告)日：2021-05-20

申请号：US16638560

申请日：2018-09-18

Applicant: TORAY INDUSTRIES, INC.

Inventor： Satoshi KAMEMOTO ,  Yuta SHUTO ,  Kazuto MIYOSHI

IPC: G03F7/038 ,  G03F7/004 ,  G03F7/039 ,  C08G73/10 ,  G03F7/00 ,  H01L27/32 ,  H01L51/00 ,  H01L51/56

Abstract: A photosensitive resin composition including: an alkali-soluble resin (A); a photo acid generator (B); a thermal cross-linking agent (C); a phenolic antioxidant (D); and a compound (E2) having a phenolic hydroxyl group indicating an acid dissociation constant pKa of 6.0 to 9.5 at 25° C.; or a photosensitive resin composition including: an alkali-soluble resin (A); a photo acid generator (B); a thermal cross-linking agent (C); a phenolic antioxidant (D); and a compound (E) having a phenolic hydroxyl group other than (D); wherein the compound (E) having a phenolic hydroxyl group other than (D) contains a compound (E1) having an electron-withdrawing group and a phenolic hydroxyl group in the molecule. Provided is a photosensitive resin composition whose cured film has high bending resistance even after a reliability test, and also has excellent chemical resistance.

公开(公告)号：US20200012191A1

公开(公告)日：2020-01-09

申请号：US16491039

申请日：2018-03-16

Applicant: TORAY INDUSTRIES, INC.

Inventor： Satoshi KAMEMOTO ,  Yugo TANIGAKI ,  Kazuto MIYOSHI

IPC: G03F7/037 ,  C08L79/08 ,  C08L33/10 ,  C08L57/00 ,  C08K3/04 ,  C08K5/00 ,  C08F2/48 ,  G03F1/00 ,  H01L51/50 ,  H05B33/10

Abstract: The present invention provides a photosensitive resin composition which has a light-blocking property, and at the same time, a high sensitivity, and has excellent half-tone characteristics. The present invention provides a photosensitive resin composition including an (A) alkali-soluble resin, a (B) radically polymerizable compound, a (C) photo initiator, and a (D) colorant, where the (A) alkali-soluble resin contains a polyimide, a polyimide precursor, a polybenzoxazole precursor, and/or a copolymer thereof, and the (B) radically polymerizable compound contains a (B-1) bifunctional or higher (meth)acrylic compound that has a glass transition temperature of 150° C. or higher as a homopolymer, and a (B-2) tetrafunctional or higher (meth)acrylic compound other than the (B-1).

公开(公告)号：US20190072851A1

公开(公告)日：2019-03-07

申请号：US16084866

申请日：2017-03-17

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yugo TANIGAKI ,  Satoshi KAMEMOTO ,  Kazuto MIYOSHI

IPC: G03F7/038 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/023 ,  H01L51/56 ,  H01L27/12 ,  H01L21/027 ,  G02F1/1339 ,  G02F1/1368 ,  G02F1/1335 ,  H01L27/32

Abstract: The present invention provides a negative type photosensitive resin composition having high sensitivity, excellent halftone characteristics, capability to form a small tapered pattern shape, and alkali-developability.The negative type photosensitive resin composition includes, as an alkali-soluble resin (A), at least a weakly acidic group-containing resin (A1) and an unsaturated group-containing resin (A2), the weakly acidic group-containing resin (A1) containing an acidic group having an acid dissociation constant in the range of 13.0 to 23.0 in dimethyl sulfoxide, and the unsaturated group-containing resin (A2) containing an ethylenically unsaturated double bond group.

公开(公告)号：US20180259852A1

公开(公告)日：2018-09-13

申请号：US15759429

申请日：2016-09-26

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yugo TANIGAKI ,  Satoshi KAMEMOTO ,  Kazuto MIYOSHI

IPC: G03F7/038 ,  G03F7/028 ,  G03F7/075 ,  G03F7/20 ,  H01L51/50

Abstract: To provide an alkaline developable negative-type photosensitive resin composition from which a cured film that has a high-resolution and low-taper pattern shape and that are excellent in heat resistance and light blocking property can be obtained. A negative-type photosensitive resin composition is characterized by containing an (A1) first resin, a (A2) second resin, a (C) photopolymerization initiator, and a (D) coloring agent, wherein the (A1) first resin is an (A1-1) polyimide and/or an (A1-2) polybenzo-oxazole, and wherein the (A2) second resin is one or more species selected from a (A2-1) polyimide precursor, a (A2-2) polybenzo-oxazole precursor, a (A2-3) polysiloxane, a (A2-4) cardo based resin, and an (A2-5) acrylic resin, and wherein a content ratio of the (A1) first resin in a total of 100 mass % of the (A1) first resin and the (A2) second resin is within the range of 25 to 90 mass %.

公开(公告)号：US20140191222A1

公开(公告)日：2014-07-10

申请号：US14202595

申请日：2014-03-10

Applicant: TORAY INDUSTRIES, INC.

Inventor： Kazuto MIYOSHI ,  Mika KOSHINO ,  Masao TOMIKAWA

IPC: G02B1/04 ,  H01L27/32

CPC classification number: G02B1/04 ,  C08G73/10 ,  C08G73/22 ,  C08K5/13 ,  C08K5/17 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1014 ,  C09K2211/1044 ,  C09K2211/1059 ,  G03F7/0007 ,  G03F7/037 ,  G03F7/039 ,  G03F7/40 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3258 ,  H01L51/5284 ,  H01L2224/18 ,  H05B33/10 ,  H05B33/14 ,  Y10T428/10 ,  Y10T428/1018 ,  Y10T428/1023 ,  Y10T428/105 ,  Y10T428/1095 ,  C08L79/04 ,  C08L79/08

Abstract: The resin composition of the present invention is a resin composition characterized by including (a) a polyimide, a polybenzoxazole, a polyimide precursor or a polybenzoxazole precursor, (b) 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, or 2,3-dihydroxynaphthalene, and (c) a thermal cross-linking agent having a specific structure. By the use of the resin composition of the present invention, it is possible to reduce the transmittance in the visible region of a cured film while maintaining the transmittance of a resin film before curing.

Abstract translation: 本发明的树脂组合物是一种树脂组合物，其特征在于包括（a）聚酰亚胺，聚苯并恶唑，聚酰亚胺前体或聚苯并恶唑前体，（b）1,5-二羟基萘，1,6-二羟基萘， 二羟基萘或2,3-二羟基萘，和（c）具有特定结构的热交联剂。 通过使用本发明的树脂组合物，可以在固化前保持树脂膜的透射率，降低固化膜的可见光区域的透射率。