Effect of crosslinking polymer networks on the molecular reorientation and electro-optical performance of in-plane switching vertically aligned liquid crystal devices

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/103311

Title:	Effect of crosslinking polymer networks on the molecular reorientation and electro-optical performance of in-plane switching vertically aligned liquid crystal devices
Authors:	賴昆佑;Lin, Guan‐Jhong;Chen, Tien‐Jung;Lee, Ming‐Jui;Wu, Jin‐Jei;Lai, Kun‐Yu;Yang, Ying‐Jay
Contributors:	理學院光電科學與工程學系
Keywords:	Alignment;Anchoring;Crosslinking;electric field;electric power;Electrooptical;energy;Liquid crystals;liquid-crystalline polymers (LCP);mixing;molecular dynamics;Networks;orientation;photopolymerization;Polymerization;polymers;Switching theory;transmittance
Date:	2015-08-15
Issue Date:	2026-04-23 11:27:40 (UTC+8)
Publisher:	John Wiley and Sons Inc.;Hoboken: Wiley
Abstract:	摘要： The effects of crosslinking polymer networks (PNs) on the molecular reorientation and electro‐optical properties of vertically aligned (VA) liquid crystal (LC) devices are investigated by applying an in‐plane switching (IPS) electric field. Through the polymerization process, crosslinking PNs are developed on the substrate surface, effectively increasing the anchoring energy and governing the LC molecular reorientation. With its stronger anchoring effect, the PNs cell shows good light transmittance and excellent vertical alignment quality, as compared to the pure LC cell. Furthermore, the alignment transformation and transmittance bounce resulting from the transient process of LC molecular reorientation are eliminated when the cell is operated at high voltages. The rising‐time (tᵣ) and falling‐time (tf) responses of the PNs cell are significantly improved, and around 36% improvement in the optical switching response is obtained. In addition, the dynamic gray‐level tᵣ and tf responses of the PNs cell are enhanced by around 55% and 42%, respectively, at a low driving voltage (∼12 V). This developed VA‐IPS LC/PNs cell benefits not only the LC molecular alignment but also the electro‐optical performance. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2015, 53, 1123–1130 其他題名： J. Polym. Sci. Part B: Polym. Phys 出版者： Hoboken: Wiley 出版日期： 2015-08-15 出處： Journal of polymer science. Part B, Polymer physics, 2015-08, Vol.53 (16), p.1123-1130 版權： 2015 Wiley Periodicals, Inc. 識別號： ISSN: 0887-6266 識別號： EISSN: 1099-0488 識別號： DOI: 10.1002/polb.23744 識別號： CODEN: JPBPEM
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	13	View/Open

社群 sharing

Loading...