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Enhanced electro optical characteristics of dispersed Azo dye doped polymer liquid crystal display

FARZANA AHMAD1, JIN WOO LEE2, YOUNG JAE JEON1,* , MUHAMMAD JAMIL3,4

Affiliation

  1. LCD Research Center, Department of Chemistry, Konkuk University, Seoul 05029, Korea
  2. Display R&D Team, LIVICON Co., Ltd., Daesowon Myeon, Chungbuk, Korea
  3. Div ision of Global Business, Konkuk University, Seoul 05029, Korea
  4. Department of Physics, Konkuk University, Seoul 05029, Korea

Abstract

The purpose of the current study was to examine the electro optical characteristics of polymer dispersed liquid crystals (PDLC) films based on doping of Azo black dye (C36H37N7 ). The following dye doped PDLC devices have been prepared using various ratios of nematic liquid crystal (LC) TL203, prepolymer PN393 and black dye by adopting the photo induced phase separation technique. For this study, Azo dye was doped into them with 0.5 1.5 wt%. The findings of the study revealed that this Azo dye could be employed into the PDLC films as colored optical devices and windows shutters, hence its doping significantly improve the electro optical characteristics..

Keywords

Polymer dispersed liquid crystal, Composite films, Azo black dye.

Citation

FARZANA AHMAD, JIN WOO LEE, YOUNG JAE JEON, MUHAMMAD JAMIL, Enhanced electro optical characteristics of dispersed Azo dye doped polymer liquid crystal display, Optoelectronics and Advanced Materials - Rapid Communications, 11, 11-12, November-December 2017, pp.603-607 (2017).

Submitted at: March 7, 2017

Accepted at: Nov. 28, 2017