Control of Liquid Crystal Pretilt Angle using Polymerization of Reactive Mesogen

  • Jo, Soo-In (Dept. of Electronics and Computer Engineering, Hanyang University) ;
  • Lee, You-Jin (Dept. of Information Display Engineering, Hanyang University) ;
  • Kim, Young-Ki (Dept. of Information Display Engineering, Hanyang University) ;
  • Yoon, A-Ra (Dept. of Information Display Engineering, Hanyang University) ;
  • Choi, Sang-Woong (Dept. of Electronics and Computer Engineering, Hanyang University) ;
  • Kim, Jae-Hoon (Dept. of Electronics and Computer Engineering, Hanyang University)
  • Published : 2009.10.12

Abstract

We propose a method to control the pretilt angle of liquid crystal (LC) by doping a proper amount of UV curable reactive mesogen (RM) monomers in hometropic polyimide (PI). The intermediate pretilt angles are produced by anchoring competition between homeotropic PI and the polymerized RM which direction is along the LC molecules under electric field.

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