• Proceedings of the IEEK Conference
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• 2002.07a
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• pp.309-312
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• 2002

Advances in networking infrastructure have led to the development of a new type of "computational grid" infrastructure that provides predictable, consistent and uniform access to geographically distributed resources such as computers, data repositories, scientific instruments, and advanced display devices Such Grid environments are being used to construct sophisticated, performance-sensitive applications in such areas as dynamic, distributed real-time applications. In this paper, we propose a toolset for designing distributed real-time systems based on computational grid. The toolset is based on a new methodology and integrates the models that methodology Proposed for designing real-time systems.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.1108-1110
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• 2004

LCDs show motion image blur due to slow response time and a hold-type driving method. In this paper, we investigate motion blur phenomena and quantitatively show that the motion blur can be significantly reduced through a combination of dynamic capacitance compensation (DCC) and black data insertion.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.1212-1215
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• 2004

Diffraction modes of holographic grating were fabricated with polyurethane acrylates(PUA). Two types of silica (AEROSIL 200 and AEROSIL R812) were added to reduce the shrinkage of polymer matrix. It was founded that shrinkage of PUA composite film was reduced with the addition of silica. HPDLC based PUA/silica composite also showed high diffraction efficiency. The morphology of the resultant gratings was analyzed by using scanning electron microscopy(SEM) and Tg of the polymer matrix by dynamic mechanical thermal analysis(DMTA).

• Proceedings of the IEEK Conference
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• 2001.09a
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• pp.531-534
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• 2001

본 논문에서는 plasma display panel에서 제한된 개수의 subfield를 사용하여 gradation을 표현함으로써 발생하는 dynamic false contour 등의 화질 열화를 개선할 수 있는 방법에 관하여 고찰한다. 먼저, 화질의 최종판단자인 인간 시각시스템의 특성과 subfield의 밝기 변화 특성 등을 고려하여 제한된 개수의 subfield로 최적의 화질을 얻을 수 있는 subfield pattern을 제시한다. 또한, 비교적 적은 양의 계조값 변화에서도 견실한 특성을 보일 수 있는 방법을 제시하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.1381-1382
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• 2008

Cholesteric Blue phase (ChBP) is constructed by the regular arrangement of the double helix, whereas the Smectic Blue phase (SmBP) has the inter-connected multi-lamellar structure. Orientation fluctuations of polymer stabilized ChBP and spontaneously super-cooled SmBP are discussed. Spatial topology of the defects play key role on the dynamic properties.

• 한국정보디스플레이학회:학술대회논문집
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• 2006.08a
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• pp.868-871
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• 2006

In-plane switching characteristics of PI rubbed ITO sandwich cell with low molecule FLC (ferroelectric liquid crystal) surface was investigated. FLC on the surface is governed by the applying frequency and surface condition. By controlling the Ps (spontaneous polarization) direction of dual FLC surfaces, switching characteristics are improved without change of cell structure.

• 한국정보디스플레이학회:학술대회논문집
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• 2003.07a
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• pp.520-523
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• 2003

We used three types of reactive diluents with different chemical structures, N-vinyl-pyrrollidone(NVP), ethyl hexyl acrylate(EHA) and hydroxyehtyl methacrylate(HEMA). It was founded that N-vinylpyrrollidone(NVP) and ethyl hexyl acrylate(EHA) based PUA with low molecular weight polypropylene glycol(PPG) at low oligomer content give high diffraction efficiency. The morphology of the resultant gratings was analyzed by using scanning electron microscopy(SEM) and Tg of the polymer matrix by dynamic mechanical thermal analysis(DMTA).

• 제어로봇시스템학회:학술대회논문집
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• 1987.10b
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• pp.255-259
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• 1987

This paper introduces the system AUTO-CUT for the automatic generation of NC tapes for wire-cut EDM (Electrodischarge Machining) parts. The information input to the system is the description of the part geometries, the tool motions and the cutting conditions etc. The system generates CLDATA. Also dynamic graphic display of the tool motions can be-performed on the screen.

• 한국정보디스플레이학회:학술대회논문집
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• 2005.07a
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• pp.519-521
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• 2005

The electrooptical characteristics of OMI (optical mode interference) cell were investigated as the application for LC shutters. The optical responses under dynamic driving were simulated by solving the Ericksen-Leslie hydrodynamic equations numerically. The prototypes were made accordingly for verification. The experimental data show good coincidence with the simulation results.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04a
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• pp.139-141
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• 2003

최근의 휴대용 시스템에서는 디스플레이로 투과형 LCD를 주로 채택하고 있다. 투과형 LCD는 후면조명이 광원이 되는데, 후면조명(Backlight)의 소비전력이 시스템 전체 소비 전력에서 큰 비중을 차지한다. 우리는 화질의 큰 저하 없이 후면조명의 소비 전력을 줄이는 방법인 DLS를 소개한다. 본 논문에서는 DLS 구현과 구현한 플랫폼에서의 실험결과를 간단히 언급한다.