公开(公告)号：US20190137877A1

公开(公告)日：2019-05-09

申请号：US16097883

申请日：2017-03-29

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Jong Han Yang ,  Geun Huh ,  Jin Kwon ,  Jong-Ho Na

IPC: G03F7/075 ,  G03F7/023 ,  G03F7/004 ,  G03F7/038

Abstract: The present invention provides a photosensitive resin composition and a cured film prepared therefrom. The photosensitive resin composition includes a mixture of two or more siloxane polymers having different dissolution rates with respect to an aqueous solution of tetramethylammonium hydroxide. The composition keeps high transparency and high sensitivity, which are advantages of a composition containing a siloxane polymer, and has excellent chemical resistance, thereby providing a cured film having excellent stability in a post-processing.

公开(公告)号：US10747109B2

公开(公告)日：2020-08-18

申请号：US15993678

申请日：2018-05-31

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Hyung-Tak Jeon ,  Ji Ung Kim ,  Kyung-Jae Park ,  Jong-Ho Na ,  Hyung Gu Kim

IPC: G03F7/038 ,  G02F1/1339 ,  G03F7/00 ,  G03F7/031 ,  H01L51/00 ,  C08F283/10 ,  G03F7/105 ,  G03F7/027 ,  C08F222/40 ,  C08F265/06 ,  C08F2/48 ,  G03F7/033 ,  H01L51/52 ,  H01L27/32 ,  C08F222/10

Abstract: The present invention relates to a colored photosensitive resin composition capable of forming a cured film that does not generate uneven wrinkles on its surface, to thereby minimize spots on the display screen that may be generated by a defect in the gap between the upper and lower plates during their assembly, with the formation of an excellent step difference and a pattern in a high resolution; and to a light shielding spacer produced therefrom and used for a liquid crystal display, an organic EL display, or the like.

公开(公告)号：US20180356723A1

公开(公告)日：2018-12-13

申请号：US15993678

申请日：2018-05-31

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Hyung-Tak Jeon ,  Ji Ung Kim ,  Kyung-Jae Park ,  Jong-Ho Na ,  Hyung Gu Kim

IPC: G03F7/00 ,  G03F7/033 ,  G03F7/031 ,  G02F1/1339 ,  H01L51/00 ,  C08F283/10

Abstract: The present invention relates to a colored photosensitive resin composition capable of forming a cured film that does not generate uneven wrinkles on its surface, to thereby minimize spots on the display screen that may be generated by a defect in the gap between the upper and lower plates during their assembly, with the formation of an excellent step difference and a pattern in a high resolution; and to a light shielding spacer produced therefrom and used for a liquid crystal display, an organic EL display, or the like.

公开(公告)号：US20180314153A1

公开(公告)日：2018-11-01

申请号：US15769945

申请日：2016-09-22

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Jong-Ho Na ,  Geun Huh ,  Jin Kwon ,  Jong Han Yang

IPC: G03F7/075 ,  C08G77/18 ,  G03F7/022 ,  G03F7/023 ,  G03F7/039 ,  G03F7/004 ,  C08G77/24 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  H01L21/3105 ,  H01L27/32 ,  H01L27/12

CPC classification number: G03F7/0757 ,  G03F7/0046 ,  G03F7/0226 ,  G03F7/0233 ,  G03F7/038

Abstract: Disclosed herein are a photosensitive resin composition and a cured film prepared therefrom. The photosensitive resin composition introduces a siloxane polymer containing a fluorine atom which has strong water-repellency into a composition including a common siloxane polymer and an epoxy compound, and fluorine groups may be present in the whole region of the cured film so that the water-repellency due to a fluorine component may be maintained even after removing the surface of the cured film is removed via a dry etching process. As a result, the resistance (chemical resistance) to chemicals used in a post-processing can be maximizes to provide a cured film having excellent stability.

公开(公告)号：US11226558B2

公开(公告)日：2022-01-18

申请号：US16664994

申请日：2019-10-28

Applicant: ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

Inventor： Kahee Shin ,  Eun-Young Lee ,  Jong-Ho Na ,  Geun Huh

IPC: G03F7/023 ,  G03F7/033 ,  G03F7/039 ,  C08F220/14 ,  G03F7/031

Abstract: The present invention relates to a positive-type photosensitive resin composition and a cured film prepared therefrom. The composition comprises a photopolymerizable compound containing a double bond and a specific photopolymerization initiator, wherein the photopolymerizable compound containing a double bond suppresses the photopolymerization reaction upon exposure to light but causes the photopolymerization reaction at the time of photobleaching after development, thereby controlling the flowability of the composition during thermal curing. Thus, a pattern is readily formed, which makes it possible to maintain excellent sensitivity upon the development and even upon the hard-bake process after the development, and it is possible to provide a cured film that is excellent in film strength and film retention rate.

公开(公告)号：US10890846B2

公开(公告)日：2021-01-12

申请号：US15769945

申请日：2016-09-22

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Jong-Ho Na ,  Geun Huh ,  Jin Kwon ,  Jong Han Yang

IPC: G03F7/075 ,  G03F7/004 ,  G03F7/022 ,  G03F7/023 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/038 ,  G03F7/039 ,  H01L21/3105 ,  H01L27/12 ,  H01L27/32 ,  C08G77/18 ,  C08G77/24

Abstract: Disclosed herein are a photosensitive resin composition and a cured film prepared therefrom. The photosensitive resin composition introduces a siloxane polymer containing a fluorine atom which has strong water-repellency into a composition including a common siloxane polymer and an epoxy compound, and fluorine groups may be present in the whole region of the cured film so that the water-repellency due to a fluorine component may be maintained even after removing the surface of the cured film is removed via a dry etching process. As a result, the resistance (chemical resistance) to chemicals used in a post-processing can be maximizes to provide a cured film having excellent stability.

公开(公告)号：US10747110B2

公开(公告)日：2020-08-18

申请号：US15991063

申请日：2018-05-29

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Ji Ung Kim ,  Hyung-Tak Jeon ,  Kyung-Jae Park ,  Jong-Ho Na ,  Hyung Gu Kim

IPC: G03F7/038 ,  G03F7/032 ,  G03F7/031 ,  G03F7/033 ,  G03F7/40 ,  G03F7/00 ,  G03F7/105 ,  G02F1/1339

Abstract: The present invention relates to a colored photosensitive resin composition that prevents the generation of uneven wrinkles when a cured film is formed, to thereby prevent spots that may be generated on the edges of a display upon the formation thereof, and has a short development time. Accordingly, the colored photosensitive resin composition can be advantageously used as a material for forming a protective film, an interlayer insulating film, a light shielding spacer such as a black column spacer, and the like to be employed in various electronic parts inclusive of a liquid crystal display (LCD) panel and an organic light emitting diode (OLED) display panel.

公开(公告)号：US20180356722A1

公开(公告)日：2018-12-13

申请号：US15993645

申请日：2018-05-31

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Kyung-Jae Park ,  Hyung-Tak Jeon ,  Ji Ung Kim ,  Jong-Ho Na ,  Hyung Gu Kim

IPC: G03F7/00 ,  G03F7/031 ,  G03F7/033 ,  G02F1/1339

CPC classification number: G03F7/0007 ,  G02F1/13394 ,  G02F2001/13398 ,  G03F7/031 ,  G03F7/033 ,  H01L27/3272

Abstract: The present invention relates to a colored photosensitive resin composition and to a light shielding spacer produced therefrom. The colored photosensitive resin composition comprises epoxy groups and double bonds in a specific molar ratio and an oxime ester fluorene-based photopolymerization initiator in a smaller amount than a conventional oxime ester-based photopolymerization initiator, so that it has excellent photo-curing characteristics. As a result, it is possible to improve the high sensitivity characteristics such as resolution and step difference even with a small amount of light. Specifically, since the curing characteristics of the film surface is improved, it is to possible to reduce the generation of outgassing, which is a contamination source that may be generated when the film is dried. In addition, the colored photosensitive resin composition is capable of forming a cured film that minimizes the generation of uneven wrinkles on its surface. Accordingly, the colored photosensitive resin composition can be advantageously used as a material for forming a light shielding spacer such as a black column spacer to be employed in various electronic parts inclusive of a liquid crystal display (LCD) panel and an organic light emitting diode (OLED) display panel.

公开(公告)号：US10534261B2

公开(公告)日：2020-01-14

申请号：US15782171

申请日：2017-10-12

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Hyung-Tak Jeon ,  Ji Ung Kim ,  Kyung-Jae Park ,  Jong-Ho Na ,  Hyung Gu Kim ,  Seok-Bong Park

IPC: G03F7/038 ,  G02F1/1339 ,  G03F7/032 ,  G03F7/105 ,  G02F1/1335 ,  G03F7/031 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40

Abstract: The present invention relates to a colored photosensitive resin composition capable of forming a cured film that does not generate uneven wrinkles on its surface at the time of its formation, and a light shielding spacer produced therefrom and used for a liquid crystal display, an organic EL display, or the like.

公开(公告)号：US20180356728A1

公开(公告)日：2018-12-13

申请号：US15991063

申请日：2018-05-29

Applicant: Rohm and Haas Electronic Materials Korea Ltd.

Inventor： Ji Ung Kim ,  Hyung-Tak Jeon ,  Kyung-Jae Park ,  Jong-Ho Na ,  Hyung Gu Kim

IPC: G03F7/032 ,  G03F7/031 ,  G03F7/038

Abstract: The present invention relates to a colored photosensitive resin composition that prevents the generation of uneven wrinkles when a cured film is formed, to thereby prevent spots that may be generated on the edges of a display upon the formation thereof, and has a short development time. Accordingly, the colored photosensitive resin composition can be advantageously used as a material for forming a protective film, an interlayer insulating film, a light shielding spacer such as a black column spacer, and the like to be employed in various electronic parts inclusive of a liquid crystal display (LCD) panel and an organic light emitting diode (OLED) display panel.