- Patent Title: Near infrared ray absorbent composition, near infrared ray cut filter, manufacturing method of near infrared ray cut filter, solid image pickup element, camera module
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Application No.: US15389546Application Date: 2016-12-23
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Publication No.: US09958576B2Publication Date: 2018-05-01
- Inventor: Takashi Kawashima , Keisuke Arimura
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2014-134257 20140630
- Main IPC: G02B1/04
- IPC: G02B1/04 ; G02B5/22 ; C08K5/56 ; G02B5/20 ; H04N5/238 ; H01L27/146 ; H04N5/225

Abstract:
Provided are a near infrared ray absorbent composition which can form a cured film having excellent heat resistance while maintaining high near infrared ray shielding properties, and a near infrared ray cut filter, a manufacturing method of a near infrared ray cut filter, a solid image pickup element, and a camera module using the near infrared ray absorbent composition. The near infrared ray absorbent composition contains a compound having a partial structure represented by M-X, and a near infrared ray absorbent compound, and a content of the compound having a partial structure represented by M-X is greater than or equal to 15 mass % with respect to a total solid content of the near infrared ray absorbent composition. Here, M is an atom selected from Si, Ti, Zr, and Al, X is one type selected from a hydroxy group, an alkoxy group, an acyloxy group, a phosphoryloxy group, a sulfonyloxy group, an amino group, an oxime group, and O═C(Ra)(Rb), Ra and Rb each independently represent a monovalent organic group, and in a case in which X is O═C(Ra)(Rb), X is bonded to M by an unshared electron pair of an oxygen atom of a carbonyl group.
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