한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제16권6호
  • /
  • Pages.501-509
  • /
  • 2003
  • /
  • 1226-7945(pISSN)
  • /
  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지
DOI QR코드

DOI QR Code

Fringe-Field 구동형 새로운 반투과형 수평 배향 액정 디스플레이

A Novel Transflective Homogeneously Aligned Liquid Crystal Display Driven by Fringe-Field

  • 정태봉 (전북대학교 신소재공학부) ;
  • 이승희 (전북대학교 신소재공학부)
  • 발행 : 2003.06.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

We have designed transflective liquid crystal display(LCD) associated with in-plane switching of a LC director driven by fringe-field, unlike other LCD mode. Reflective area consists of a λ/2 compensation film and a LC cell with retardation value(dΔn) of λ/4 with their optic axes making an angle of 15$^{\circ}$ and 75$^{\circ}$ against polarizer, respectively. In the transmissive area, top and bottom polarizers are parallel each other, an LC has a dΔn of λ/2, and another λ/2 compensation film is inserted between the LC cell and bottom polarizer. With the configuration, both devices show dark state initially. When an incident light is 550nm, the device shows wide-viewing-angle characteristics such that in the reflective area the contrast ratio target than 5 exists up to 55$^{\circ}$ of polar angle in all directions and in transmissive area it exists about 100$^{\circ}$ in vortical direction and 110$^{\circ}$ in horizontal direction.

키워드

참고문헌

  1. SID`98 Digest The trend on the color and gray reflective LCDs for future electronic paper T.Ogawa;S.Fujita;Y.Iwai;H.Koseki
  2. IDW`00 New design of transflective LCD with single retardation film H.I.Baek;Y.B.Kim;K.S.Ha;D.G.Kim;S.B.Kwon
  3. IDW`01 Development of transflective LCD for high contrast and wide viewing angle by using homeqtropic alignment M.Jisaki;H.Yamaguchi
  4. Proc. of the 5th KLCC`02 A new transflective TFT-LCD with dual color filter J.S.Lim;T.Y.Jung;C.Nam;K.J.Kim;B.C.Ahn
  5. SID02 Digest Wide-viewing-angle transflective TFT-LCDs with hybrid aligned nematic compensators E.Yoda;T.Uesaka;T.Ogasawara;T.Toyooka
  6. Appl. Phys. Lett. v.57 no.20 Electro-optic characteristics and switching principle of a nematic liquid crystal cell controlled by fringe-field switching S.H.Lee;S.H.Lee;H.Y.Kim
  7. 전기전자재료학회논문지 v.15 no.8 유전율 이방성이 음인 액정을 이용한 이중도메인 FFS 모드의 전기광학 특성 김향율;고재완;노정동;서대식;이승희 https://doi.org/10.4313/JKEM.2002.15.8.720
  8. SID`01 18.1 Ultra-FFS TFT-LCD with super image quality and fast response time S.H.Lee;S.M.Lee;H.Y.Kim;J.M.Kim;S.H.Hong;Y.H.Jeong;C.H.Park;Y.J.Choi;J.Y.Lee;J.W.Koh;H.S.Park
  9. 전기전자재료학회논문지 v.15 no.6 프린지 필드에 의해 구동되는 하이브리드형 네마틱 액정 디스플레이의 전기광학 특성 정연학;김향율;이승희 https://doi.org/10.4313/JKEM.2002.15.6.524
  10. Proc. of the 5th KLCC`02 A reflective liquid crystal display with fringe-field switching mode T.B.Jung;C.H.Park;H.Y.Kim;S.H.Hong;S.H.Lee
  11. 전기전자재료학회논문지 v.16 no.2 1매의 편광판으로 구성된 반사형 Fringe-Field Switching mode의 전기광학 특성 정태봉;박지혁;이종문;김용배;이승희 https://doi.org/10.4313/JKEM.2003.16.2.131
  12. Appl. Phys. Lett. v.57 Extended Jones matrix representation for twisted nematic liquid-crystal display at oblique incidence A.Lien https://doi.org/10.1063/1.103781
  13. private communication S.H.Lee
  14. IMID`02 Digest Designing low cost liquid crystal mode for transflective LCD H.I.Baek;M.S.Nam;K.S.Ha;D.G.Kim;H.H.Shin