Effect of CNTs on the electro-optical propertiesof the VA LC cells

Chi Yen Huang, Po Yun Chiou, Yi Jen Huang, Jing Yang Zheng

Research output: Contribution to conferencePaper

Abstract

We investigate the electro-optical properties of the carbon nanotube (CNT)-doped vertical alignment (VA) liquid crystal (LC) cells. When the CNT concentration is low, the LCs and the CNTs form a guest host system. The doped CNTs increase the order parameter, and then increase the elastic constant and the absolute value of the dielectric anisotropy of the LC/CNT mixture. When the CNT concentration is high, the doped CNTs become entangled networks, disturbing the LC alignment and impeding the flow motion of the LC defects. The doped CNTs also increase the viscosity of the LC/CNT mixture. Without rubbing treatment, the response time of the 0.8 wt% CNT-doped cell is - 63% to that of the pristine cell; with rubbing treatment, the response time of the 0.8 wt% CNT-doped cell is - 92% to that of the pristine cell.

Original languageEnglish
Pages41-44
Number of pages4
Publication statusPublished - 2009 Dec 1
Event16th International Display Workshops, IDW '09 - Miyazaki, Japan
Duration: 2009 Dec 92009 Dec 11

Other

Other16th International Display Workshops, IDW '09
CountryJapan
CityMiyazaki
Period09-12-0909-12-11

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Human-Computer Interaction
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Huang, C. Y., Chiou, P. Y., Huang, Y. J., & Zheng, J. Y. (2009). Effect of CNTs on the electro-optical propertiesof the VA LC cells. 41-44. Paper presented at 16th International Display Workshops, IDW '09, Miyazaki, Japan.