公开(公告)号：US20180346729A1

公开(公告)日：2018-12-06

申请号：US16052676

申请日：2018-08-02

Applicant: AGC Inc.

Inventor： Noriaki MIYAKE ,  Satoshi Okada ,  Jun Irisawa ,  Teppei Konishi ,  Keigo Matsuura

IPC: C09B23/14 ,  C09B57/00 ,  C08K5/3417 ,  C08K5/3447 ,  C08K5/3437 ,  C08K5/3475 ,  G02B5/20

CPC classification number: C08K5/07 ,  C07D217/02 ,  C07D235/08 ,  C07D235/10 ,  C07D333/66 ,  C07D401/14 ,  C07D403/14 ,  C07D409/14 ,  C07D417/14 ,  C07D487/04 ,  C08L101/00 ,  C09B23/00 ,  G02B5/22

Abstract: Provided is a near-infrared-absorbing dye increasing a visible light transmittance and having a near-infrared blocking characteristic. The near-infrared-absorbing dye has an absorption characteristic measured by dissolving the dye in dichloromethane satisfying the following requirements. ⋅In an absorption spectrum at a wavelength of 400 to 800 nm, there is a maximum absorption wavelength λmax in a wavelength region of 670 nm or more. ⋅The following relational expression is established between a maximum absorption constant εA with respect to light with a wavelength of 430 to 550 nm and a maximum absorption constant εB with respect to light with a wavelength of 670 nm or more, where εB/εA≥65. ⋅In a spectral transmittance curve, an average transmittance of light with a wavelength of 430 to 460 nm is 94.0% or more when a transmittance at the maximum absorption wavelength λmax is set to 1%.

公开(公告)号：US11059977B2

公开(公告)日：2021-07-13

申请号：US16052676

申请日：2018-08-02

Applicant: AGC Inc.

Inventor： Noriaki Miyake ,  Satoshi Okada ,  Jun Irisawa ,  Teppei Konishi ,  Keigo Matsuura

IPC: G02B5/22 ,  C09B23/14 ,  C07D217/02 ,  C07D487/04 ,  C07D333/66 ,  C07D235/08 ,  C08L101/00 ,  C07D519/00 ,  C07D235/30 ,  C07D237/28 ,  C07D209/08 ,  C09D179/08 ,  C08K5/3417 ,  C08K5/3437 ,  C08K5/3447 ,  C08K5/3475 ,  C09B57/00 ,  G02B5/20 ,  H01L27/146

Abstract: Provided is a near-infrared-absorbing dye increasing a visible light transmittance and having a near-infrared blocking characteristic. The near-infrared-absorbing dye has an absorption characteristic measured by dissolving the dye in dichloromethane satisfying the following requirements. ⋅In an absorption spectrum at a wavelength of 400 to 800 nm, there is a maximum absorption wavelength λmax in a wavelength region of 670 nm or more. ⋅The following relational expression is established between a maximum absorption constant εA with respect to light with a wavelength of 430 to 550 nm and a maximum absorption constant εB with respect to light with a wavelength of 670 nm or more, where εB/εA≥65. ⋅In a spectral transmittance curve, an average transmittance of light with a wavelength of 430 to 460 nm is 94.0% or more when a transmittance at the maximum absorption wavelength λmax is set to 1%.