公开(公告)号：US09753197B2

公开(公告)日：2017-09-05

申请号：US14328994

申请日：2014-07-11

Applicant: Korea Advanced Institute of Science and Technology ,  Eui Joung Hong

Inventor： Shin Hyun Kim ,  Seung Man Yang ,  Hye Soo Lee ,  Tae Soup Shim

IPC: B42D25/36 ,  B42D25/41 ,  G02B5/26 ,  G02B1/00 ,  G02B5/20 ,  B32B27/08 ,  B32B27/20 ,  G03F7/00 ,  G03F7/027

CPC classification number: G02B5/26 ,  B32B27/08 ,  B32B27/20 ,  B32B2264/0235 ,  B32B2264/025 ,  B32B2264/102 ,  B32B2307/404 ,  B32B2307/416 ,  B32B2425/00 ,  B42D25/36 ,  B42D25/41 ,  G02B1/005 ,  G02B5/206 ,  G03F7/0002 ,  G03F7/0012 ,  G03F7/027

Abstract: An identification film and pattern having high transparency and a reflectance spectrum with respect to a particular wavelength and including photonic crystals patterned into a particular shape and an anticounterfeiting product including the same are disclosed. A highly transparent colloidal photonic crystal film is easily manufactured using photocurable colloidal suspensions. Even though a plurality of patterns (including sub-patterns) is formed in plural films, there is no reduction in optical characteristics such as transparency, reflectance spectra, and the like. Thus, a film patterned into a desired shape is manufactured and thus usability thereof is enhanced, and a plurality of reflectance spectra with various wavelength ranges is provided and thus identification capability or security is enhanced.

公开(公告)号：US20200017696A1

公开(公告)日：2020-01-16

申请号：US16193673

申请日：2018-11-16

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Korea Advanced Institute of Science and Technology

Inventor： Chan Ul Jeong ,  Sang Hoon Han ,  Jong Bin Kim ,  Shin Hyun Kim ,  Gun Ho Lee

IPC: C09D11/037 ,  G02B1/02 ,  C09D11/101 ,  C09D11/107 ,  C09B59/00

Abstract: Disclosed are an ink composition including light-absorbing nanoparticles and a photonic crystal structure formed using the same. The ink composition may include inorganic particles; monomer; photoinitiator; and nanoparticles light-absorbing nanoparticles to provide the photonic crystal structure. As consequence, problems such as low color sharpness, which makes photonic crystals visible, and attaining high productivity may be eliminated. Moreover, white scattering can be reduced, and thus a distinctive color can be exhibited even when there is a difference between a reflection angle and an observation angle of light, thereby improving visibility.

公开(公告)号：US10647862B2

公开(公告)日：2020-05-12

申请号：US16193673

申请日：2018-11-16

Applicant: Hyundai Motor Company ,  Kia Motors Corporation ,  Korea Advanced Institute of Science and Technology

Inventor： Chan Ul Jeong ,  Sang Hoon Han ,  Jong Bin Kim ,  Shin Hyun Kim ,  Gun Ho Lee

IPC: C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  C09D11/037 ,  G02B1/02 ,  C09B59/00 ,  C09D11/107 ,  C09D11/101

Abstract: Disclosed are an ink composition including light-absorbing nanoparticles and a photonic crystal structure formed using the same. The ink composition may include inorganic particles; monomer; photoinitiator; and nanoparticles light-absorbing nanoparticles to provide the photonic crystal structure. As consequence, problems such as low color sharpness, which makes photonic crystals visible, and attaining high productivity may be eliminated. Moreover, white scattering can be reduced, and thus a distinctive color can be exhibited even when there is a difference between a reflection angle and an observation angle of light, thereby improving visibility.

公开(公告)号：US20150076808A1

公开(公告)日：2015-03-19

申请号：US14328994

申请日：2014-07-11

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Shin Hyun Kim ,  Seung Man Yang ,  Hye Soo Lee ,  Tae Soup Shim

IPC: B42D25/30 ,  G03F7/26 ,  B42D25/405 ,  G02B1/00 ,  G02B5/20 ,  G02B5/26 ,  G03F7/20 ,  G02B1/04

CPC classification number: G02B5/26 ,  B32B27/08 ,  B32B27/20 ,  B32B2264/0235 ,  B32B2264/025 ,  B32B2264/102 ,  B32B2307/404 ,  B32B2307/416 ,  B32B2425/00 ,  B42D25/36 ,  B42D25/41 ,  G02B1/005 ,  G02B5/206 ,  G03F7/0002 ,  G03F7/0012 ,  G03F7/027

Abstract: An identification film and pattern having high transparency and a reflectance spectrum with respect to a particular wavelength and including photonic crystals patterned into a particular shape and an anticounterfeiting product including the same are disclosed.A highly transparent colloidal photonic crystal film is easily manufactured using photocurable colloidal suspensions.Even though a plurality of patterns (including sub-patterns) is formed in plural films, there is no reduction in optical characteristics such as transparency, reflectance spectra, and the like. Thus, a film patterned into a desired shape is manufactured and thus usability thereof is enhanced, and a plurality of reflectance spectra with various wavelength ranges is provided and thus identification capability or security is enhanced.

Abstract translation: 公开了一种具有高透明度和相对于特定波长的反射光谱并且包括被图案化为特定形状的光子晶体的识别膜和图案以及包括其的防伪产品。 使用光固化胶体悬浮液可容易地制造高度透明的胶体光子晶体膜。 即使在多个膜中形成多个图案（包括子图案），也不会降低诸如透明度，反射光谱等的光学特性。 因此，制造了图案化为期望形状的膜，因此其可用性得到提高，并且提供了具有各种波长范围的多个反射光谱，从而提高了识别能力或安全性。