• 제목/요약/키워드: multidomain vertical alignment (MVA)

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수직 광폴리머를 이용한 MVA 셀의 전기 광학 특성 (EO Characteristics in the Multidomain Vertical-Alignment (MVA) Cell on a Homeotropic Photopolymer)

  • 이경준;황정연;김재형;서대식
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2002년도 하계학술대회 논문집 Vol.3 No.2
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    • pp.953-956
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    • 2002
  • The electro-optical (EO) performances of a multidomain vertical-alignment (MVA) cell on a homeotropic photopolymer have been investigated. In the absence of an electric field, the MVA cell achieved black state as LC alignment is homeotropic. An electric field created by interdigitated electrodes and rib made after photolithograph using the photopolymer on both substrates causes a director deformation of a multidomain type. Good voltage-transmittance curves for a MVA cell on the homeotropic photopolymer were observed. Also, the stable response time of MVA cell on the homeotropic photopolymer can be achieved.

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EO Characteristics of the Mew MVA-LCD using a Crossed Stripe Grating-Groove Vertical Alignment (CGVA) Layer

  • Lee, Kyung-Jun;Hwang, Jeoung-Yeon;Lee, Sang-Keuk;Seo, Dae-Shik
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2003년도 하계학술대회 논문집 Vol.4 No.2
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    • pp.999-1002
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    • 2003
  • Electrooptical (EO) characteristics of a new multidomain vertical-alignment (MVA) liquid crystal display (LCD) with negative dielectric anisotropy on a homeotropic photopolymer were studied. Good voltage-transmittance (V-T) curves of the new MVA-LCD on the homeotropic photopolymer were obtained. Also, the stable response time of the new MVA-LCD on the homeotropic photopolymer was achieved. The viewing angle of the new MVA-LCD could be improved by a crossed stripe grating-groove surface as the alignment layer using a photolithograph method on the photopolymer.

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수직 광폴리머를 이용한 새로운 MVA 셀 (New MVA Cell Using a Homeotropic Photopolymer)

  • 황정연;서대식
    • 한국전기전자재료학회논문지
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    • 제14권1호
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    • pp.54-57
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    • 2001
  • We have developed a new multidomain vertical-alignment (MVA) mode using a homeotropic photopolymer that provides a wider viewing angle for nematic liquidcrystal (NLC) with negative dielectric anisotropy. Good voltage-transmittance curves for he new MVA cell using the homeotropic photopolymer were observed. The viewing angle of the new MVA cell using the homeotropic photopolymer was wider than that of the conventional VA cell. The wide viewing angle using the new MVA cell is attributable to 4-domain by the ribs with UV exposure on the photopolymer.

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수직 광폴리머 표면에 사진식각을 이용한 다중도메인 수직배향셀의 광시야각 특성 (Wide-Viewing Angle Characteristics of MVA Cell using Photolithograph with Homeotropic Photopolymer Surface)

  • 황정연;이경준;이재호;김태호;이상극;서대식
    • 한국전기전자재료학회논문지
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    • 제16권3호
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    • pp.219-223
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    • 2003
  • The electro-optical (EO) performances of a multidomain verticial-alignment (MYA) cell on a homeotropic photopolymer have been investigated. In the absence of an electric field, the WVA cell achieved black state as LC alignment is homeotropic An electric field created by interdigitated electrodes and rib made after photolithograph using the photopolymer on both substrates causes a director deformation of a multidomain type. Good voltage transmittance curves for a MVA cell on the homeotropic photopolymer were observed. Also, the stable response time of MYA cell on the homeotropic photopolymer can be achieved.