한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Preparations of Polymer Dispersed Liquid Crystals Using the Liquid Crystals with negative dielectric anisotropy

  • Hwang, Sung-Ho (Adv. Nano Mater. Res. Lab., Daegu Gyeongbuk Inst. of Sci. & Tech.(DGIST)) ;
  • Woo, Sung-Ho (Adv. Nano Device Res. Lab., Daegu Gyeongbuk Inst. of Sci. & Tech.(DGIST)) ;
  • Jeon, Chan-Wook (Adv. Nano Device Res. Lab., Daegu Gyeongbuk Inst. of Sci. & Tech.(DGIST)) ;
  • Yang, Kee-Jeong (Adv. Nano Device Res. Lab., Daegu Gyeongbuk Inst. of Sci. & Tech.(DGIST)) ;
  • Choi, Byeong-Dae (Adv. Nano Device Res. Lab., Daegu Gyeongbuk Inst. of Sci. & Tech.(DGIST)) ;
  • Kim, Byung-Kyu (Department of Polymer Science and Engineering, Pusan Nat’l Univ.) ;
  • Kim, Eun-Hee (Department of Polymer Science and Engineering, Pusan Nat’l Univ.)
  • Published : 2006.08.22
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Abstract

Polymer Dispersed Liquid Crystal (PDLC) films, of which the liquid crystal has negative dielectric anisotropy, were prepared from the phase separation between MJ001317 and a variety of compositions of resins by common polymerization induced phase separation method. In this work, the effects of resin compositions have been systematically investigated and it was found that the morphology and size of droplet, which is closely related to electro-optic properties, mainly depend on the rate of polymerization and cross-linking density for each resin composition. The reverse mode PDLC films from this newly developed formulation containing TPGDA/EHA/HMPPO showed the good off-state transmittance, contrast ratio (19/1), and relatively low driving voltage(10V).

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