Cholesteric Liquid Crystals (CLC) are a type of liquid crystal material characterized by their helical molecular arrangement, which selectively reflects specific wavelengths of light, resulting in unique optical properties. Due to their tunable structure, CLCs are widely used in display technology, optical filters, and biosensors, making them a crucial advancement in liquid crystal research.

Professional Optoelectronic Characterization System

　　Our team can offer a professional optoelectronic characterization system specifically designed for analyzing the fundamental and advanced properties of Cholesteric Liquid Crystals (CLC) in display applications. The system integrates a high-precision reflective integrating sphere with a spectrometer and an automated measurement platform. Through seamless hardware and software integration, it accurately delivers driving signals while efficiently collecting and analyzing measurement data. This evaluation system not only meets the rigorous requirements of academic research but also fulfills industry standards for the development and performance verification of CLC displays.

Next-Generation CLC Display Based on Lying Helix (LH) Structure

　　Traditional cholesteric liquid crystal displays often suffer from poor dark-state performance, leading to insufficient optical contrast and negatively impacting screen reflectivity and overall visual quality. Collaborating closely with industry partners, we have successfully developed a new type of cholesteric liquid crystal display that innovatively adopts the Lying Helix (LH) state to replace the conventional Focal Conic (FC) state as the dark state. In full-color display applications, this technology demonstrates superior optical contrast and color saturation, marking a significant breakthrough in the advancement of e-paper technology and paving the way for next-generation high-performance displays.

Wide-Viewing-Angle CLC Display

　　In full-color CLC displays, traditional methods to enhance viewing angle performance often involve the use of specific filters. However, this approach significantly increases material costs and manufacturing complexity. Moreover, the stacking of multiple layers can lead to increased interface reflections, resulting in optical losses. To address these challenges, we have developed an innovative solution by introducing dichroic dyes into the liquid crystal material, replacing the need for external filters. This technique not only effectively improves the viewing angle performance of CLC displays but also has the potential to reduce manufacturing complexity and costs, providing a more efficient and economical pathway for full-color display technology.

Optimizing the Existing Dynamic Driving Scheme (DDS) for CLC display

　　Cholesteric liquid crystal displays (CLCDs) face challenges such as long switching times and limited optical performance. To address these issues, our research focuses on optimizing the Dynamic Driving Scheme (DDS), which governs the transitions between different liquid crystal states. By refining the driving parameters, we have successfully reduced switching times and improved overall display efficiency. This advancement paves the way for more practical applications of CLCDs in flexible, energy-efficient display technologies.

Machine Learning Applications in CLC Display 

　　Cholesteric Liquid Crystals (CLC) are fundamentally different from conventional liquid crystal components. Their optoelectronic properties cannot be easily predicted through material characteristics or process parameters alone, as they are highly complex materials. The optoelectronic performance of CLC is intricately linked to the material's intrinsic properties, alignment conditions, and numerous other parameters. Our team has accumulated a substantial dataset in the field of CLC and is dedicated to leveraging machine learning techniques to analyze and process this data. We aim to develop a high-precision model that not only predicts the optoelectronic properties of different material combinations but also back-traces optimal material pairings and driving methods, providing powerful support for CLC research and applications.

CLC Film Fabrication Process 

　　Through the collaborative efforts of our research team and the startup Brilliant Optronics (BO), a spin-off from LCP Lab, we have successfully developed a technology to laminate liquid crystal materials onto flexible substrates and applied this technique to Cholesteric Liquid Crystals (CLC). This manufacturing capability enables both academia and industry to conduct further research and demonstrations on CLC, while also creating new possibilities for flexible CLC displays, writing tablets, and related applications.