• Title/Summary/Keyword: Engineering Department

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Molecular Dynamics and Quantum Chemical Molecular Dynamics Simulations for the Design of MgO Protecting Layer in Plasma Display Panel

  • Kubo, Momoji;Serizawa, Kazumi;Kikuchi, Hiromi;Suzuki, Ai;Koyama, Michihisa;Tsuboi, Hideyuki;Hatakeyama, Nozomu;Endou, Akira;Takaba, Hiromitsu;Kajiyama, Hiroshi;Shinoda, Tsutae;Miyamoto, Akira
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1049-1052
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    • 2008

  • We developed novel molecular dynamics and quantum chemical molecular dynamics simulators for the design of MgO protecting layer in plasma display panel. These simulators were applied to the investigations on the destruction processes of the MgO protecting layer as well as the evaluation of its second electron emission ability. From the simulation results, we successfully proposed new guidelines for MgO protecting layer with high durability and high second electron emission ability.

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Modeling of the defect on the slit in Patterned Vertical Aligned (PVA) LC Cell using the fast Q-tensor method

  • Son, Jung-Hee;Choi, Yong-Hyun;Lee, Wa-Ryong;Choi, Seong-Wook;Kim, Kyung-Mi;Hue, Tae-Kyung;Yang, Jin-Seok;Lee, Seung-Hee;Lee, Gi-Dong
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.858-861
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    • 2006

  • In this paper we model the liquid crystal director field in the Patterned Vertical Alignment (PVA) LC using the fast Q-tensor method, which can model multidimensional director configurations with defects in the liquid crystal director field. We observed the dynamic behaviors of the defect experimentally by applying the voltage and modeled the LC director field with defect in the active area of the PVA cell. As a result, we could also calculate the optical transmittance.

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Fabrication of PDMS micro-pads for vibration absorber in MEMS packaging (MEMS packaging을 위한 Micro PDMS pad 제작)

  • Kim, Han-Hyoung;Sim, Se-Hwan;Kim, Sung-Gi;Yang, Seung-Kook;O, Beom-Hoan;Lee, Seung-Gol;Lee, El-Hang;Park, Se-Geun;Lee, Jong-Geun
    • Proceedings of the IEEK Conference
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    • 2008.06a
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    • pp.511-512
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    • 2008

  • Micro-pads made of PDMS(polydimethylsiloane) can be mechanical shock or vibration absorber because of its contractibility. Fabrication of micro-pads and techniques of separation from substrate and attachment to new substrate are developed. Three micron thick PDMS pads were fabricated by imprinting lithography.

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