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Near-infrared cut filter and device including near-infrared cut filter

一种截止滤波器、近红外线的技术，应用在仪器、电固体器件、半导体器件等方向，能够解决近红外线吸收能未必足够等问题，达到近红外线滤波能优异、吸湿性低、透射率高的效果

Active Publication Date: 2014-06-18
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the near-infrared cut filter described in Patent Document 1 may not necessarily have sufficient near-infrared absorption energy.

Method used

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  • Near-infrared cut filter and device including near-infrared cut filter
  • Near-infrared cut filter and device including near-infrared cut filter
  • Near-infrared cut filter and device including near-infrared cut filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0315] Hereinafter, the present invention will be described based on examples, but the present invention is not limited by these examples. Moreover, "part" means a "weight part" unless otherwise indicated.

[0316] First, the measurement method of each physical property value and the physical property evaluation method are demonstrated.

[0317] (1) Molecular weight:

[0318] Use the H-type column manufactured by Tosoh (TOSOH) to install, the gel permeation chromatography (GPC) device (150C type) manufactured by Waters (WATERS) Company, with o-dichlorobenzene solvent, at 120 ℃ Under the conditions, the weight average molecular weight (Mw) and the number average molecular weight (Mn) in terms of standard polystyrene were measured.

[0319] (2) Glass transition temperature (Tg):

[0320] Using a differential scanning calorimeter (DSC6200) manufactured by Seiko Electronics Nanotechnology (SII Nanotechnology) Co., Ltd., it measured at a heating rate: 20° C. per minute, under ni...

Synthetic example 1

[0329] The 8-methyl-8-methoxycarbonyltetracyclo[4.401 represented by the following formula (a) 2，5 .1 7，10 100 parts of ]dec-3-ene (hereinafter also referred to as "DNM"), 18 parts of 1-hexene (molecular weight regulator), and 300 parts of toluene (solvent for ring-opening polymerization reaction) were fed into the reaction vessel replaced by nitrogen , the solution was heated to 80 °C. Then, 0.2 parts of a toluene solution (0.6mol / liter) of triethylaluminum and 0.9 parts of a toluene solution (0.025mol / liter) of methanol-modified tungsten hexachloride were added to the solution in the reaction vessel as a polymerization catalyst, And this solution was heated and stirred at 80 degreeC for 3 hours, and the ring-opened polymer solution of ring-opening polymerization reaction was obtained. The polymerization conversion rate in this polymerization reaction was 97%.

[0330] [chem 22]

[0331]

[0332] 1,000 parts of the ring-opened polymer solution thus obtained was fed int...

Synthetic example 2

[0335] 35.12g (0.253mol) of 2,6-difluorobenzonitrile (2,6-difluorobenzonitrile), 125.65g (0.250mol) of 9,9-bis(3-phenyl-4-hydroxyphenyl)fluorene, carbonic acid 41.46 g (0.300 mol) of potassium, 443 g of N,N-dimethylacetamide (hereinafter also referred to as "DMAc"), and 11 1 g of toluene were added to a 3 L four-necked flask. Next, a thermometer, a stirrer, a three-way valve with a nitrogen inlet tube, a Dean-Stark tube and a cooling tube were installed on the four-necked flask.

[0336] Next, after the inside of the flask was replaced with nitrogen, the resulting solution was reacted at 140° C. for 3 hours, and generated water was removed from a Ding Stark tube as needed. After confirming that water was no longer produced, the temperature was gradually raised to 160° C., and the reaction was carried out at this temperature for 6 hours.

[0337] After cooling to room temperature (25° C.), the generated salt was removed with filter paper, the filtrate was poured into methanol ...

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Abstract

A near-infrared cut filter characterized by comprising a resinous substrate (I) that comprises both a resin and a light absorber (A) having a structure derived from a compound represented by formula (I), the light absorber (A) being contained in the resinous substrate (I) in an amount of 0.001-0.01 part by weight per 100 parts by weight of the resin.

Description

technical field [0001] The present invention relates to a near-infrared cut filter. More specifically, it relates to a near-infrared cut filter that has a sufficient viewing angle and can be preferably used as a sensitivity correction filter for a solid-state imaging device such as a CCD or a CMOS image sensor. Background technique [0002] In recent years, CCDs or CMOS image sensors of solid-state imaging elements for color images have been used in solid-state imaging devices such as video cameras, digital cameras, and mobile phones with camera functions. A silicon photodiode with sensitivity to near-infrared rays that cannot be sensed. These solid-state imaging devices require correction of the sensitivity to match the natural colors visible to the human eye, and many of them use near-infrared cut filters that selectively transmit or cut light in a specific wavelength range. [0003] Such near-infrared cut filters have been conventionally manufactured by various methods....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/22H01L27/14
CPCG02B5/208H01L27/14621H01L27/14625H01L27/14618H01L2924/0002C09B57/007C08K5/3417H01L2924/00G02B1/04G02B5/223
Inventor 坪内孝史
Owner JSR CORPORATIOON
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