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Title:
NEAR-INFRARED ABSORBING COMPOSITION AND FILTER FOR SOLID-STATE IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/122738
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a near-infrared absorbing composition for a solid-state imaging device, the near-infrared absorbing composition having low absorption in the visible region (400-700 nm), excellent near-infrared absorptivity and high durability, and being capable of forming a fine pattern of less than 10 μm when used in a near-infrared absorbing filter for a solid-state imaging device; a near-infrared cut filter which is used for a solid-state imaging device and formed by the near-infrared absorbing composition; and a solid-state imaging device provided with said near-infrared cut filter. The problem is resolved by a near-infrared absorbing composition which is for a solid-state imaging device and characterized by comprising a near-infrared absorbing dye [A] having a specific structure, a resin-based dispersant [B1] having an amine value of 20 to 200 (mg KOH/g), and a binder resin [C] having a weight average molecular weight of 5,000-40,000 and an acid value of 130 mg KOH/g or less.

Inventors:
HARAGUCHI KAZUMICHI (JP)
YAMADA KAZUNORI (JP)
KUBO MASAHIRO (JP)
MINATO KOICHI (JP)
Application Number:
PCT/JP2017/000858
Publication Date:
July 20, 2017
Filing Date:
January 12, 2017
Export Citation:
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Assignee:
TOYO INK SC HOLDINGS CO LTD (JP)
TOYOCOLOR CO LTD (JP)
TOPPAN PRINTING CO LTD (JP)
International Classes:
G02B5/22; C09B57/00; C09B67/20; C09B67/46; C09K3/00; H01L27/14
Domestic Patent References:
WO2016190162A12016-12-01
Foreign References:
JP2015091923A2015-05-14
JP2008091535A2008-04-17
JP2014130343A2014-07-10
JP2013214000A2013-10-17
JP2014153570A2014-08-25
JP2014215474A2014-11-17
JP2012247588A2012-12-13
JP2011144257A2011-07-28
JP2000162431A2000-06-16
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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