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Chinese Journal of Liquid Crystals and Displays

Chinese Journal of Liquid Crystals and Displays Chinese Journal of Liquid Crystals and Displays
  • Editor-in-Chief:Haicheng Guo
  • ISSN:1007-2780
  • eISSN:2097-3217
  • CN:22-1259/O4
  • Supervisor:Chinese Academy of Sciences
  • Sponsor:Changchun Institute of Optics, Fine Mechanics, and Physics (CIOMP), CAS, Liquid Crystal Branch, Chinese Physical Society, and Liquid Crystal Branch
  • Publication frequency:Monthly
  • Address:No.3888 Dong Nanhu Road, Changchun, Jilin, China 130033
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Volume 41 期 6，2026 2026年第41卷第6期

  • Material Physics

    CHEN Ruixin, LIU Zilong, CHEN Jiahao, MA Lingling, TANG Xingzhou, LI Bingxiang

    DOI：10.37188/CJLCD.2026-0088
    摘要：Self-assembled microstructures in cholesteric liquid crystals， such as helices， dislocation lines， fingerprint textures， and topological solitons， have been widely studied and applied in the field of soft matter photonics. Among these， the precise construction of microstructures and their dynamic control using external fields have remained key research focuses. This review summarizes recent advances in the fabrication methods， stabilization conditions， and manipulation strategies for typical microstructures in cholesteric liquid crystals. It highlights techniques for controlling the orientation of helical axes and the evolution of fingerprint textures using optical， electric， and thermal fields. Furthermore， it introduces the application exploration of these microstructures in tunable gratings， reflective lenses， full-color displays， and particle manipulation. This review provides insights into achieving large-range precise control and functionalization of microstructures in cholesteric liquid crystals， and discusses their potential applications in emerging fields such as smart photonics and soft actuators， offering new possibilities for future research on cholesteric liquid crystal microstructures.  
    关键词：cholesteric liquid crystals;helical structure;dislocation;fingerprint texture;optical applications;topological solitons;external-field manipulation   
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  • Device Physics and Device Preparation

    XUE Bosen, ZHA Zhengtao, MU Quanquan, WANG Qidong, PENG Zenghui

    DOI：10.37188/CJLCD.2026-0078
    摘要：To solve the problems of low energy efficiency of small-pixel silicon-based chips and insufficient calculation accuracy of the scalar diffraction theory， this study conducts precise calculation and optimization research on the energy efficiency of silicon-based chips. The energy efficiency of silicon-based chips is calculated using both the scalar diffraction theory and the Finite-Difference Time-Domain（FDTD） method， and an experimental verification is carried out by building a 532 nm laser testing system. A λ/4-type multilayer dielectric high-reflection coating is designed using TiO2/SiO2 materials， and the optimization rules of the number of coating periods and operating wavelength on energy efficiency are analyzed via FDTD simulations. The research results show that for the currently common silicon-based chips with small pixel sizes（pixel period： 2~8 μm）， the absolute error between the energy efficiency calculated by the FDTD method and the experimental results is less than 1%. Coating the multilayer dielectric film can effectively improve the energy efficiency of the chip； when the number of reflective coating periods reaches 5， the energy efficiency of chips of various pixel sizes exceeds 95% in the wavelength range of 450~625 nm.  
    关键词：silicon-based chip;diffraction efficiency;energy efficiency;finite-difference time-domain method;multilayer dielectric high-reflection coating   
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    LEI Zhikai, DING Wei, CHENG Hao, LI Shilong, XING Hongyu, YE Wenjiang

    DOI：10.37188/CJLCD.2026-0073
    摘要：Liquid crystal optoelectronic devices face issues such as electrical safety hazards and poor portability. Conventional power supply devices feature high power consumption and reliance on external power sources， making it difficult to meet the demand for lightweight and self-powered operation. There is an urgent need for power supply devices that are safe， portable， low-power， and capable of utilizing renewable energy. This study aims to address these pain points by exploring novel self-powered driving strategies. Innovatively， moisture-enabled electric generators（MEGs） are integrated with polymer-dispersed liquid crystal（PDLC） gratings to construct a self-powered PDLC grating system. A 2 cm×2 cm MEG is employed as the core energy supply component； its output performance of a single unit is tested， and series-parallel connection optimization is conducted to enhance power output for stable power supply to PDLC gratings. Driving and diffraction performance are evaluated using a conventional signal source as a control. A single 2 cm×2 cm MEG yields an open-circuit voltage of 0.76 V and a short-ci rcuit current of 0.492 mA， and series-parallel configurations can boost power output to meet driving requirements. Its driving stability and response speed are highly comparable to those of the signal source. Moreover， under different supply voltages， the regulation law of diffraction efficiency of PDLC gratings driven by MEGs is completely consistent with that driven by signal sources， with the fluctuation error of diffraction efficiency controlled within 5%， verifying the reliability of the power supply. This study successfully proposes and implements a novel power supply scheme for liquid crystal devices centered on MEGs. It not only provides a green and portable self-powered solution for PDLC gratings， but also offers new ideas and technical references for the research on self-powered driving of various liquid crystal devices， which is of great significance for promoting the application of liquid crystal devices in flexible electronics， portable optoelectronic devices， and other fields.  
    关键词：polymer dispersed liquid crystal;moisture-enabled electric generator;self-powered;portability   
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  • Display Technology and Applications

    WU Yiran, CAO Kewei, ZHAO Junsha, SHI Zeyuan, LIU Yu

    DOI：10.37188/CJLCD.2026-0084
    摘要：With the rapid upgrading of smart cockpits and in-vehicle display technologies， automotive polarizers have become key optical materials affecting display performance and safety. Addressing the contradiction between the rapid development of China’s automotive display industry and the lack of dedicated standards for automotive polarizers， this paper aims to fill the research gap in standards， refine the theoretical framework of standard-driven industrial upgrading， resolve the industry pain points of domestic automotive polarizers such as “lack of standards to follow， difficulty in certification， slow industrialization process，” and improve the level of independent controllability of the industrial chain. Based on the application needs of all scenarios in automotive displays， this paper systematically analyzes the key bottlenecks between current standard system and the actual application of the automotive display industry， proposes the standard architecture and main indicators for automotive polarizers， and explores the implementation path for the large-scale application driven by standards. It puts forward the key points of polarizer technical standards adapted to all automotive display scenarios and forms a practical industrial application implementation plan. The research results can provide a unified basis for the research， design， production， manufacturing， and verification and evaluation of automotive polarizers. Through the deep integration of standardization and industrial application， this study provides a theoretical basis and practical guide for the large-scale application of the automotive polarizer industry， which has important theoretical support and engineering application value for enhancing China’s independent guarantee capability of key materials for automotive displays， the security and stability of the industrial and supply chains， and achieving high-quality development.  
    关键词：automotive display;polarizer;Standard;large-scale application   
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    更新时间：2026-07-15
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