서지주요정보
네마틱 액정에서의 계단식 전기장에 의한 동역학연구 = Switching dynamics of nematic liquid crystal in step electric field
서명 / 저자 네마틱 액정에서의 계단식 전기장에 의한 동역학연구 = Switching dynamics of nematic liquid crystal in step electric field / 이승우.
저자명 이승우 ; Lee, Seung-Woo
발행사항 [대전 : 한국과학기술원, 2001].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8011561

소장위치/청구기호

학술문화관(문화관) 보존서고

MPH 01002

SMS전송

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초록정보

Dynamics of a thin nematic liquid crystal sample in external switching field was examined for various initial states of electrostatic equilibrium. Step electric field was applied to study the gray scale switching dynamics from the first step equilibrium at $E_1$ to the second step equilibrium at $E_2$. We measured the switching times, and the results could be explained by a change in effective rotational viscosity and the Erickson-Leslie theory. We could divide the switching area into three regions of different characteristics, each respective range of which was dependent on surface anchoring. The switching time dependence on the second step field $(E_2)$ was determined by which region the first step field $(E_1)$ belongs to. Surface anchoring effects upon the gray scale dynamics are dominant to determine the switching times, and the switching time behaviors in the thin cell are found to have interesting analogies with those of confined liquid crystals. We also measured the switching behaviors of inertial effect and the switching behaviors of liquid crystal molecular near the surface of weak anchoring cell. We reported the possibilities of utilizing these effects for display devices.

서지기타정보

서지기타정보
청구기호 {MPH 01002
형태사항 ii, 61 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Seung-Woo Lee
지도교수의 한글표기 : 김종진
지도교수의 영문표기 : Jong-Jean Kim
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 : p. 56-58
주제 네마틱 액정
스위칭 동역학
표면효과
nematic liquid crystal
gray scale
switching dynamcis
surface effect
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