In-Plane Switching LC Cells Using Patterned Printing Electrodes and Fine Groove Structures

We have investigated a fabrication process of in-plane switching liquid crystal (IPS-LC) cells using a patterned printing electrodes and file groove structures. Using a mold made with polydimethylsiloxane as a stamper, patterned electrodes by a conductive material of silver nanoparticle, with reverse-patterned electrodes of line and spacing (L/S) width of 10 um, was fabricated. From transmittance vs voltage characteristics, the obtained contrast ratio was 103:1 and the threshold voltage was 3.1 V. By combining the R-uCP method and nano-imprint lithography with 200 nm L/S nano-groove as an alignment layer of liquid crystal molecules, the IPS-LC cell was also fabricated and realized.

  • "In-Plane Switching Liquid Crystal Cells Using Patterned Printing Electrodes and Fine Groove Structures", M. Kataoka and H. Okada, Liquid Crystals, https://doi.org/10.1080/02678292.2020.1723034 (2020).
  • "Alignment of Liquid Crystals with 200 nm-sized V-shaped Groove Structure fabricated by Nano-Imprint Lithography", K. Haruna and H. Okada, Journal of Molecular Liquids, https://doi.org/10.1016/j.molliq. 2019.04.107 (2019.
  • "Fabrication of Mold and Stamp for Micro Contact Print to Realize Flexible Liquid Crystal Devices”, M. Kataoka, H. Okada, The 6th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies, PO2-23 (2017.6.20).
  • "Liquid Crystal Devices Having the V-Groove Structure by Nano-Imprint Lithography", K. Haruna and H. Okada: Proc. Int’l Display Workshop ’17, LCTp2-11L, pp.266-267 (2017).
  • "Fabrication Technique of Flexible Liquid Crystal Display Using In-Plane Micro-Contact Printing Electrode", M. Kataoka and H. Okada, Proc. Int’l Display Workshop ’18, FLXp2/LCTp5-3L, pp. 1576-1577 (2018.12.13).

Copyright ©
Electron Device Laboratory, University of Toyama.
All rights reserved.