Multidimensional anti-counterfeit technology enabled by a double-layered functional liquid crystal film

WANG Fang; YUAN Cong-long; WANG Yi-fei; SHEN Dong; WANG Xiao-qian; ZHENG Zhi-gang

doi:10.37188/CJLCD.2023-0128

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Multidimensional anti-counterfeit technology enabled by a double-layered functional liquid crystal film

Device Physics and Device Preparation | 更新时间：2023-08-10

- Multidimensional anti-counterfeit technology enabled by a double-layered functional liquid crystal film
- Chinese Journal of Liquid Crystals and Displays Vol. 38, Issue 8, Pages: 1022-1030(2023)
- 作者机构：
  
  1.华东理工大学材料科学与工程学院，上海 200237
  2.华东理工大学物理学院，上海 200237
- 作者简介：
- 基金信息：
  
  National Key Research and Development Program of China(2022YFA1203700);National Science Foundation of China(61822504;62275081;51873060;62035008);Innovation Program of Shanghai Municipal Education Commission(2021-01-07-00-02-E00107);“Shuguang Program” of Shanghai Education Development Foundation and Shanghai Municipal Education Commission(21SG29)
- DOI：10.37188/CJLCD.2023-0128
  CLC：
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WANG Fang, YUAN Cong-long, WANG Yi-fei, et al. Multidimensional anti-counterfeit technology enabled by a double-layered functional liquid crystal film. [J]. Chinese Journal of Liquid Crystals and Displays 38(8):1022-1030(2023)
DOI：

WANG Fang, YUAN Cong-long, WANG Yi-fei, et al. Multidimensional anti-counterfeit technology enabled by a double-layered functional liquid crystal film. [J]. Chinese Journal of Liquid Crystals and Displays 38(8):1022-1030(2023) DOI： 10.37188/CJLCD.2023-0128.

摘要

防伪与伪造之间的矛盾日益加深，研发保密性强、安全性高、不可复制的防伪技术已成为社会与经济发展的迫切需求。在此背景下，液晶防伪技术因其性能优异、实用性高、广受市场好评而成为备受关注的领域。然而，现有的防伪技术层次结构不够丰富，隐藏图文颜色单一，因此，本研究提出了一种双信息防伪层的器件结构，由宾主液晶防伪膜层和胆甾相液晶防伪膜层组成，每层包含不同的信息内容。通过不同的光照模式，可以获得不同的显示内容，从而达到了多维防伪的效果。相较于传统单层宾主液晶防伪膜层，该设计具有与偏振相关的透反射差异和在透射方向上不对称的光响应特点。使用这种易制备的防伪膜层叠加设计不仅提高了防伪码的安全水平，还降低了应用成本。

Abstract

The contradiction between counterfeiting and forgery is deepening， and the development of counterfeiting technology with strong confidentiality， high security， and non-reproducibility has become an urgent need for social and economic development. In this context， liquid crystal anti-counterfeiting technology has become an area of great interest due to its excellent performance， high practicality， and wide market appreciation. However， the existing anti-counterfeiting technology is not rich enough in hierarchy， and the hidden graphic is only one color. Therefore， this study proposes a device structure with a dual information security layer consisting of a guest-host liquid crystal anti-counterfeiting film layer and a cholesteric liquid crystal anti-counterfeiting film layer， each layer containing different information content. Through different light patterns， different display contents can be obtained， thus achieving a multi-dimensional anti-counterfeiting effect. The design features polarization-related transmission-reflection differences and an asymmetric light response in the transmission direction compared to conventional single-layer guest-host liquid crystal anti-counterfeit film layers. The use of this easily prepared anti-counterfeit film layer overlay design not only improves the security level of the security code but also reduces the cost of application.

关键词

宾主液晶二色性染料胆甾相液晶防伪光配向

Keywords

guest-host liquid crystaldichroic dyescholesteric liquid crystalanti-counterfeitphotoalignment

references

WANG X S， CUI Y， REN B， et al. Metalens for generating multi-channel polarization-wavelength multiplexing metasurface holograms ［J］. Optics Express， 2022， 30（26）： 47856-47866. doi: 10.1364/oe.477190http://dx.doi.org/10.1364/oe.477190

LI Y， YU Q， WU Y， et al. Research on hologram based on holographic projection technology ［J］. Mathematical Problems in Engineering， 2022， 2022： 3142599. doi: 10.1155/2022/3142599http://dx.doi.org/10.1155/2022/3142599

SALEM F M， AMIN R. A privacy-preserving RFID authentication protocol based on El-Gamal cryptosystem for secure TMIS ［J］. Information Sciences， 2020， 527： 382-393. doi: 10.1016/j.ins.2019.07.029http://dx.doi.org/10.1016/j.ins.2019.07.029

GHOLAMI V， ALAGHEBAND M R. Provably privacy analysis and improvements of the lightweight RFID authentication protocols ［J］. Wireless Networks， 2020， 26（3）： 2153-2169. doi: 10.1007/s11276-019-02037-zhttp://dx.doi.org/10.1007/s11276-019-02037-z

NGUYEN H P， RETRAINT F， MORAIN-NICOLIER F， et al. A watermarking technique to secure printed matrix barcode-application for anti-counterfeit packaging ［J］. IEEE Access， 2019， 7： 131839-131850. doi: 10.1109/access.2019.2937465http://dx.doi.org/10.1109/access.2019.2937465

SAKIB S， MILENKOVIĆ A， RAY B. Flash watermark： an anticounterfeiting technique for NAND flash memories ［J］. IEEE Transactions on Electron Devices， 202067（10）： 4172-4177. doi: 10.1109/ted.2020.3015451http://dx.doi.org/10.1109/ted.2020.3015451

QING L. Research on equipment defect management system based on QR code ［J］. IOP Conference Series： Materials Science and Engineering， 2019， 677（5）： 052058. doi: 10.1088/1757-899x/677/5/052058http://dx.doi.org/10.1088/1757-899x/677/5/052058

PAN J S， LIU T， YAN B， et al. Using color QR codes for QR code secret sharing ［J］. Multimedia Tools and Applications， 2022， 81（11）： 15545-15563. doi: 10.1007/s11042-022-12423-zhttp://dx.doi.org/10.1007/s11042-022-12423-z

GOETZ K P， TAYLOR A D， HOFSTETTER Y J， et al. Sustainability in perovskite solar cells ［J］. ACS Applied Materials & Interfaces， 2021， 13（1）： 1-17. doi: 10.1021/acsami.0c17269http://dx.doi.org/10.1021/acsami.0c17269

SHI Y H， HAN J L， JIN X， et al. Chiral luminescent liquid crystal with multi-state-reversibility： breakthrough in advanced anti-counterfeiting materials ［J］. Advanced Science， 2022， 9（20）： 2201565. doi: 10.1002/advs.202201565http://dx.doi.org/10.1002/advs.202201565

ZHENG Z G， HU H L， ZHANG Z P， et al. Digital photoprogramming of liquid-crystal superstructures featuring intrinsic chiral photoswitches ［J］. Nature Photonics， 202216（3）： 226-234. doi: 10.1038/s41566-022-00957-5http://dx.doi.org/10.1038/s41566-022-00957-5

GAO Y Z， FENG K， ZHANG J， et al. Finger-temperature-detecting liquid crystal composite film for anti-counterfeiting labels ［J］. Molecules， 2020， 25（3）： 521. doi: 10.3390/molecules25030521http://dx.doi.org/10.3390/molecules25030521

SUN W， CHEN X F， LI Y， et al. Anti-counterfeiting behaviour of organic-inorganic hybrid silica film with a chiral smectic C structure ［J］. Chemistry-An Asian Journal， 2022， 17（20）： e202200793. doi: 10.1002/asia.202200793http://dx.doi.org/10.1002/asia.202200793

SHIBATA Y， MARUYAMA S， ISHINABE T， et al. Polarization characteristics of single-crystalline dichroic azo dye grown in nematic-phase liquid crystal ［J］. Japanese Journal of Applied Physics， 2021， 60（8）： 081001. doi: 10.35848/1347-4065/ac1389http://dx.doi.org/10.35848/1347-4065/ac1389

YANG W J， LENG J B， HUANG Z Q， et al. Controllable viewing-angle display using GHLC cell as backlight panel ［J］. Key Engineering Materials， 2010， 428-429： 335-339. doi: 10.4028/www.scientific.net/kem.428-429.335http://dx.doi.org/10.4028/www.scientific.net/kem.428-429.335

ONO H， ITO M. Characteristics of all-optical switching properties in a guest-host liquid crystal Fabry-Perot device ［J］. Optics Communications， 2003， 223（4/6）： 399-409. doi: 10.1016/s0030-4018(03)01687-0http://dx.doi.org/10.1016/s0030-4018(03)01687-0

LIANG Y G， WANG Y M， ZHU M M， et al. Controlling the pretilt angles of guest-host liquid crystals via a hydrophilic polyimide layer through oxygen plasma treatment ［J］. ACS Applied Electronic Materials， 2022， 4（9）： 4632-4640. doi: 10.1021/acsaelm.2c00868http://dx.doi.org/10.1021/acsaelm.2c00868

HUANG H W， LI H T， YIN J M， et al. Butterfly-inspired tri-state photonic crystal composite film for multilevel information encryption and anti-counterfeiting ［J］. Advanced Materials， 2023， 35（17）： 2211117. doi: 10.1002/adma.202211117http://dx.doi.org/10.1002/adma.202211117

TIAN Y， PENG H， WEI Q L， et al. Moisture-Induced reversible structure conversion of Zero-Dimensional organic cuprous bromide hybrids for multiple photoluminescent anti-Counterfeiting， information encryption and rewritable luminescent paper ［J］. Chemical Engineering Journal， 2023， 458： 141436. doi: 10.1016/j.cej.2023.141436http://dx.doi.org/10.1016/j.cej.2023.141436

CHEN J， YANG X Y， CHEN J， et al. Light‐responsive polyblend films with reconfigurable surface micropatterns as rewritable information storage media ［J］. Chinese Journal of Chemistry， 2023， 41（3）： 273-279. doi: 10.1002/cjoc.202200549http://dx.doi.org/10.1002/cjoc.202200549

罗龙飞，李玉洁，沈志豪，等. 偶氮苯液晶嵌段共聚物薄膜自组装和光响应性研究进展［J］. 应用化学，2021，38（10）：1238-1254．

LUO L F， LI Y J， SHEN Z H， et al. Progress in self⁃assembly and photo⁃responsiveness of thin films of azobenzene⁃based liquid crystalline block copolymers ［J］. Chinese Journal of Applied Chemistry， 2021， 38（10）： 1238-1254. （in Chinese）

MA J Z， YANG Y Z， WANG L， et al. Main-chain chiral liquid crystal elastomers ［J］. Acta Photonica Sinica， 2022， 51（7）： 0751417.

BONDAREV V Y， KOZLOVSKY V I， KRYSA A B， et al. Laser CRT as a light source for display technology ［C］//Proceedings of SPIE 6637， International Symposium on Advanced Display Technologies. Moscow， Russian Federation： SPIE， 2007： 663707. doi: 10.1117/12.742658http://dx.doi.org/10.1117/12.742658

MCCONNEY M E， RUMI M， GODMAN N P， et al. Photoresponsive structural color in liquid crystalline materials ［J］. Advanced Optical Materials， 2019， 7（16）： 1900429. doi: 10.1002/adom.201900429http://dx.doi.org/10.1002/adom.201900429

YIN K， XIONG J H， HE Z Q， et al. Patterning liquid-crystal alignment for ultrathin flat optics ［J］. ACS Omega， 2020， 5（49）： 31485-31489. doi: 10.1021/acsomega.0c05087http://dx.doi.org/10.1021/acsomega.0c05087

杨言昭，张璇，封伟，等. 仿生变色液晶功能材料［J］. 表面技术，2022，51（8）：15-29．

YANG Y Z， ZHANG X， FENG W， et al. Bioinspired color-changing liquid crystal materials ［J］. Surface Technology， 2022， 51（8）： 15-29. （in Chinese）

MA Y， XIN S J， LIU X Y， et al. Colour generation for optically driving liquid crystal display ［J］. Liquid Crystals， 2020， 47（12）： 1729-1734. doi: 10.1080/02678292.2020.1721580http://dx.doi.org/10.1080/02678292.2020.1721580

YUAN Y， CAO L. Liquor product anti-counterfeiting system based on RFID and two-dimensional barcode technology ［J］. Journal of Convergence Information Technology， 2013， 8（8）： 88-96. doi: 10.4156/jcit.vol8.issue8.11http://dx.doi.org/10.4156/jcit.vol8.issue8.11

LI T H， HU H B. Research on liquor warehousing and the anti-counterfeiting system based on radio frequency identification technology ［J］. Journal of Computational and Theoretical Nanoscience， 2016， 13（9）： 6052-6055. doi: 10.1166/jctn.2016.5526http://dx.doi.org/10.1166/jctn.2016.5526

LI W S， SHEN Y， CHEN Z J， et al. Demonstration of patterned polymer-stabilized cholesteric liquid crystal textures for anti-counterfeiting two-dimensional barcodes ［J］. Applied Optics， 2017， 56（3）： 601-606. doi: 10.1364/ao.56.000601http://dx.doi.org/10.1364/ao.56.000601

PARK G， YOON D K. Security use of bilayer dichroic films made of liquid crystal polymer networks ［J］. Journal of Information Display， 2021， 22（3）： 173-178. doi: 10.1080/15980316.2021.1905723http://dx.doi.org/10.1080/15980316.2021.1905723

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College of Electronic and Optical Engineering， Nanjing University of Posts and Telecommunications

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