Advancements and Applications of Liquid Crystal/Polymer Composite Films

Zhou, Le; Liu, Sijie; Miao, Xiang; Xie, Ping; Sun, Nannan; Xu, Zongqi; Zhong, Tingjun; Zhang, Lanying; Shen, Yang

doi:10.1021/acsmaterialslett.3c00665

Cited by 11 publications

(3 citation statements)

References 171 publications

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“…The strong light-scattering state is attributed to the mismatch of refractive indices between the polymer matrix and N F LC droplets, similar to the phenomenon observed in polymer-dispersed liquid crystals (PDLCs). 38 POM images of 25 μm spin-coated composite films were obtained, revealing the uniform dispersion of N F LC microdroplets with a spherical shape (Fig. S5, ESI†).…”

Section: Resultsmentioning

confidence: 99%

High-κ elastomer with dispersed ferroelectric nematic liquid crystal microdroplets

Ye,

Yang,

Zhang

et al. 2024

J. Mater. Chem. C

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Section: Resultsmentioning

confidence: 99%

High-κ elastomer with dispersed ferroelectric nematic liquid crystal microdroplets

Ye,

Yang,

Zhang

et al. 2024

J. Mater. Chem. C

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“…These properties make VA LCDs ideal for high-definition televisions, computer monitors, professional displays, and even medical imaging systems where image quality is paramount. Despite these advantages, VA LCDs face challenges, including slow response times and complex manufacturing processes, a subject of extensive study in recent literature [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Addressing these challenges, recent research has focused on the integration of polymer materials with liquid crystals, aiming to enhance the stability and performance of LCDs [ 9 , 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Tuning Electro-Optical Characteristics through Polymerization Monomer Content in PSVA Liquid Crystal Displays: Simulation and Experimentation

Zhang,

Lin,

Liu

et al. 2024

Polymers

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The enhancement of display performance and durability in polymer-stabilized vertical alignment liquid crystal and the liquid crystal are negative liquid crystals, which can be vertically aligned under the action of a vertical orientation layer and an electric field. Devices (PSVA LCDs) are crucial for advancing LCD technology. This study aims to investigate the electro-optical characteristics of PSVA LCDs by varying polymerization monomer concentrations. Using both simulations via TechWiz LCD 3D and experimental methods, such as polymer-induced phase separation, we developed an optoelectronic testing framework to assess voltage transmittance and response times. In our main findings, we show that an increase in polymeric monomer concentration from 3% to 7% resulted in a 67% increase in threshold voltage and a 44% decrease in saturation voltage. The on-state response time increased by about a factor of three, while the off-state response time decreased by about a factor of three. The alignment of our simulation results with experimental data validates our methodology, offering the potential of simulation tools as a pivotal resource in the PSVA LCDs. The alignment of our simulation results with experimental data validates our methodology, offering the potential of simulation tools as a pivotal resource in the PSVA LCDs. These advancements promise significant improvements in PSVA LCD performance and durability.

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“…Accordingly, in CLCs, the director describes a helix, and the self-organized structures are characterized by a pitch (P) and specific handedness. P is defined as the distance along the axis of the self-organized superstructure when the director rotation in CLCs completes one period of 360°[ [37][38][39][40] (Figure 1A). According to the equation P = 1/HTP*X C , P could be adjusted by varying the concentration of chiral dopant (X C ) and the helical twisting power (HTP).…”

Section: Introductionmentioning

confidence: 99%

Progress in Fabrication and Applications of Cholesteric Liquid Crystal Microcapsules

Zhang,

Yang,

Chen

et al. 2023

Chemistry A European J

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Liquid crystals (LCs) are well known for inherent responsiveness to external stimuli, such as light, thermal, magnetic, and electric fields. Cholesteric LCs are among the most fascinating, since they possess distinctive optical properties due to the helical molecular orientation. However, the good flow, easy contamination, and poor stability of small‐molecule LCs limit their further applications, and microencapsulation as one of the most effective tools can evade these disadvantages. Microencapsulation can offer shell‐core structure with LCs in the core can strengthen their stability, avoiding interference with the environment while maintaining the stimuli‐responsiveness and optical properties. Here, we report recent progress in the fabrication and applications of cholesteric LC microcapsules (CLCMCs). We summarize general properties and basic principles, fabrication methods including interfacial polymerization, in‐situ polymerization, complex coacervation, solvent evaporation, microfluidic and polymerization of reactive mesogens, and then give a comprehensive overview of their applications in various popular domains, including smart fabrics, smart sensor, smart displays, anti‐counterfeiting, information encryption, biomedicine and actuators. Finally, we discuss the currently facing challenges and the potential development directions in this field.

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Advancements and Applications of Liquid Crystal/Polymer Composite Films

Cited by 11 publications

References 171 publications

High-κ elastomer with dispersed ferroelectric nematic liquid crystal microdroplets

High-κ elastomer with dispersed ferroelectric nematic liquid crystal microdroplets

Tuning Electro-Optical Characteristics through Polymerization Monomer Content in PSVA Liquid Crystal Displays: Simulation and Experimentation

Progress in Fabrication and Applications of Cholesteric Liquid Crystal Microcapsules

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