Study on the Fringe Field Switching (FFS) Mode with the Positive Dielectric Anisotropy for the Fast Response Time

유전율 이방성이 양인 액정을 이용한 고속응답용 FFS 모드

  • Published : 2004.07.01


We have studied the fringe field switching (FFS) mode with the positive dielectric anisotropy for the fast response time. The factors such as the physical properties of the LC, the cell gap, and the rubbing angle were critical for the fast response time of the FFS mode. The response time became 10 ms faster when the rotational viscosity of the new LC is 20 mPa.s lower than the conventional LC. When the cell gap changed from 3.6 ${\mu}{\textrm}{m}$ to 3.0 ${\mu}{\textrm}{m}$, it was possible to achieve the total response time and response times associated with grey-to-grey transitions under 16 ms. And the response times including grey-to-grey transitions become fast as the rubbing angle decreases.


  1. 전기전자재료학회논문지 v.15 no.2 IPS셀의 전압보유율 및 잔류 DC특성 연구 김향율;서대식;남상희
  2. 전기전자재료학회논문지 v.16 no.3 Fringe-Field Switching (FFS) 모드에서 액정의 유전율 이방성에 따른 동력학 안정성에 관한 연구 김미숙;김향율;이승희
  3. 전기전자재료학회논문지 v.15 no.1 유전율 이방성이 음인 액정을 이용한 이중 도메인 FFS모드의 전기광학 특성 김향율;고재완;노정동;서대식;남상희
  4. SID'01 Digest Ultra-FFS TFT-LCD with super image quality, fast response time, and strong pressure-resistant characteristics S.H.LEE;H.Y.Kim;S.M.Lee;S.H.Hong;J.M.Kim;J.W.Koh;J.Y.Lee;H.S.Park
  5. Jpn. J. Appl. Phys. v.40 A model of image display in the optimized overdrive method for motion picture quality improvements in liquid crystal devices Hajime Nakamura
  6. SID'03 Digest Cell gap-dependant electro-optic characteristics of the fringe field switching (FFS) mode H.Y.Kim;J.M.Kim;S.H.Hong;S.K.Lee;Y.J.Lim;S.H.Jung;M.S.Kim;J.M.Rhee;S.H.Lee
  7. Jpn. J. Appl. Phys. v.39 Electro-optic characteristic of fringe-field switching mode depending on rubbing direction S.H.Hong;I.C.Park;H.Y.Kim;S.H.Lee
  8. Appl. Phys. Lett. v.57 Extended jones matrix representation for twisted nematic liquid crystal display at oblique incidence A.Lien