Balanced electro-optical properties and off-axis haze performance of a polymer-dispersed liquid crystal film <i>via</i> refractive index matching

Yu, Meina; Xu, Jianjun; Zhang, Luoning; Wang, Qian; Zou, Cheng; Gao, Yanzi; Yang, Huai

doi:10.1039/d3cp03024e

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…Electrically switchable PDLCs are extensively applied in preparation for large-area displays and smart windows equipped with scattering and transparent states in view of their polarization–independence, simplicity of fabrication, and low cost [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. PDLCs can be formed using micro- or nano-sized liquid crystal droplets dispersed in a uniform polymer matrix and have emerged as an essential new class of materials for a variety of utilizations in optical devices [ 19 , 20 , 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Polymer-Dispersed Liquid Crystal Film with Step-Driven Display Capability

Lin,

Zhao,

Jiao

et al. 2024

Molecules

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The realization of multifunctional advanced displays with better electro-optical properties is especially crucial at present. However, conventional integral full drive-based transparent display is increasingly failing to meet the demands of the day. Herein, partitioned polymerization as a novel preparation method was introduced innovatively into polymer-dispersed liquid crystals (PDLC) for realizing a step-driven display in agreement with fluorescent dye to solve the above drawback. At first, the utilization of fluorescent dye to endow the PDLC film with fluorescent properties resulted in a reduction in the saturation voltage of the PDLC from 39.7 V to 25.5 V and an increase in the contrast ratio from 58.4 to 96.6. Meanwhile, the experimental observations and theoretical considerations have elucidated that variation in microscopic pore size can significantly influence the electro-optical behavior of PDLC. Then, the step-driven PDLC film was fabricated through the exposure of different regions of the LC cell to different UV-light intensities, resulting in stepwise voltage–transmittance (V–T) responses of the PDLC film for the corresponding regions. Consequently, under appropriate driving voltages, the PDLC can realize three different states of total scattering, semi-transparent and total transparent, respectively. In addition, the PDLC film also embodied an outstanding anti-aging property and UV-shielding performance, which makes it fascinating for multifunctional advanced display applications.

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Section: Introductionmentioning

confidence: 99%

Preparation and Application of Polymer-Dispersed Liquid Crystal Film with Step-Driven Display Capability

Lin,

Zhao,

Jiao

et al. 2024

Molecules

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A novel low-voltage fast-response electrically controlled dimming film based on fluorinated PDLC for smart window applications

Zhang,

He,

Zhang

et al. 2024

Chemical Engineering Journal

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Liquid crystal/polymer composites for energy-efficient smart windows with a wide working temperature range and low off-axis haze

Xu,

Zhang,

et al. 2024

Composites Part A: Applied Science and Manufacturing

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Balanced electro-optical properties and off-axis haze performance of a polymer-dispersed liquid crystal film via refractive index matching

Abstract: A smart dimming film with enhanced electro-optical properties and off-axis haze performance was prepared by refractive index matching.

Cited by 3 publications

References 32 publications

Preparation and Application of Polymer-Dispersed Liquid Crystal Film with Step-Driven Display Capability

Preparation and Application of Polymer-Dispersed Liquid Crystal Film with Step-Driven Display Capability

A novel low-voltage fast-response electrically controlled dimming film based on fluorinated PDLC for smart window applications

Liquid crystal/polymer composites for energy-efficient smart windows with a wide working temperature range and low off-axis haze

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