• 한국산학기술학회논문지
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• 제15권2호
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• pp.891-901
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• 2014

본 연구에서는 미용실 이용고객의 성향은 제공되는 서비스요소와 함께 감성마케팅으로 대변되는 외적요소인 디스플레이 요소에도 많은 영향을 받고 있다 이렇듯 디스플레이 요소가 중요하게 작용하고 있는 현 시점에 미용실 고객의 라이프스타일이 디스플레이 구성요소에 어떠한 영향을 미치는 지와 미용실 고객의 라이프스타일에 따른 고객 만족 차이를 살펴보고 미용실의 디스플레이 구성요소가 고객만족에 어떠한 영향을 미칠 것인지 살펴보아 미용실 경영자에게 효율적이고 능률적인 미용실 디스플레이에 대한 아이디어를 제공함으로써 고객만족을 위한 전략을 수립하는데 유용한 정보를 제공하고자 하였다. 연구결과는 조명과 전체적인 분위기에 가장 영향을 미치는 라이프스타일 요인은 '편의지향형'이며, (p<0.05 수준)에 통계적으로 유의적인 영향을 미치는 것으로 나타났다. 색채에 가장 영향을 미치는 라이프스타일 요인은 '외모유행지향형'이며, (p<0.05 수준)에 통계적으로 유의적인 영향을 미치는 것으로 나타났다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.765-768
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• 2008

To make 3D camera system, we check the possibility of advanced range camera module based on measuring the time delay of modulated infrared light, using a single detector chip fabricated on standard CMOS process. To depth information, electronic shutter and interlaced scanning method of 2D sensor is needed. Especially, we design "lens system, illumination unit" and review simulation result.

• 기술혁신학회지
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• 제20권1호
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• pp.205-238
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• 2017

디스플레이산업은 세계 최고의 수준을 달성한 한국의 대표적 주력 산업이다. LCD 패널의 대표기업들을 중심으로 한 기존의 연구와는 달리, 본 연구는 가치사슬 관점과 아키텍처 관점을 결합하여 후방가치사슬(upstream) 영역에 속한 소재부품 장비 공급기업에 중점을 둔 산업의 발달구조와 발전추이 특성을 분석하였다. 2002년부터 2015년까지 208개 기업에 대한 매출액 및 연구개발비 자료를 활용하여, 산업의 가치사슬별 성장 및 혁신 특성을 분석하였다. 결과, 소재부품기업과 장비기업은 패널 제조 공정별로 상반된 발전 추이가 있음을 규명하였다. 본 연구는 디스플레이산업과 같이 대규모 시스템 공정산업의 경우는 공정산업의 특성을 반영하여 기존의 가치사슬 관점에 아키텍처 혁신 관점을 반영한 분석 틀을 통하여 향후 산업 기술 전략과 정책의 방향을 제시하였다는 점에 의의가 있다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.814-816
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• 2009

We have investigated the effect of host on the device charactistics of green phosphorescent organic light emitting devices consising of mCP, CBP and TPBi. Electrons were confined within the device by inserting hole transport layer between the electro transport and the emitting layer. When the appropriate interlayers were added, the device with TPBI host layer performances were found to be dramatically enhanced, with current efficiency and lifetime of 18cd/A and 18hour.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2003년도 International Meeting on Information Display
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• pp.988-990
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• 2003

A plastic substrate for flexible display is developed. The developed PES film has good resistance to heat, low intrinsic birefringence, and mechanical stability. The gas barrier property in the substrate is improved through depositing organic and inorganic multi layer on plastic film by PVD and CVD process.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.1366-1369
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• 2008

We introduce new instrument that provides the spectral radiance at any incidence and azimuth angle in all the visible range. LCD emission and transmittance properties of display components can be measured precisely at each incidence and azimuth angle and wavelength. Full polarization spectral analysis can be also made.

• 마이크로전자및패키징학회지
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• 제27권2호
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• pp.19-26
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• 2020

Flexible displays have been evolved into curved, foldable, and rollable as the degree of bending increases. Due to the presence of brittle electrodes (e.g. indium-tin oxide (ITO)) that easily cracked and delaminated under severe bending deformation, lowering mechanical stress of the electrodes has been critical issue. Because of this, mechanical stress of brittle electrode in flexible displays has been analyzed mostly in terms of bending radius. On the other hand, in order to make rollable display, various mechanical components such as roller and spring are needed to roll-up or extend the screen for the rollable display apparatus. By these mechanical components, brittle electrode in the rollable display is subjected to the excessive tensile stress due to the retracting force as well as the bending stress by the roller. In this study, mechanical deformation of rollable OLED display was modeled considering boundary conditions of the apparatus. An analytical modeling based on the classical beam theory was introduced in order to investigate the mechanical behavior of the rollable display. In addition, finite element analysis (FEA) was used to analyze the effect of mechanical components in the apparatus on the brittle electrode. Furthermore, a strategy for improving the mechanical reliability of the rollable display was suggested through controlling the stiffness of adhesives in the display panel.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.1111-1114
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• 2006

We have developed a 2 inch LTPS-TFT AMOLED display with a top emission structure on a $50-{\mu}m-thick$ metal foil. The Active matrix back planes were fabricated with the p-channel LTPS TFT with a conventional pixel circuit consisting of 2 transistors and 1 capacitance. The p-channel TFTs on the metal foil exhibited the field-effect mobility of $22cm^2/Vs$. Finally, a images from prototype monochrome AMOLED displays are successfully presented, with $64{\times}88$ pixels and 56-ppi resolution.

• ETRI Journal
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• 제30권2호
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• pp.308-314
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• 2008

In this paper, we describe the fabrication of 3.5-inch QCIF active matrix organic light emitting display (AMOLED) panels driven by thin film transistors, which are produced by an ultra-low-temperature polycrystalline silicon process on plastic substrates. The over all processing scheme and technical details are discussed from the viewpoint of mechanical stability and display performance. New ideas, such as a new triple-layered metal gate structure to lower leakage current and organic layers for electrical passivation and stress reduction are highlighted. The operation of a 3.5-inch QCIF AMOLED is also demonstrated.

• Transactions on Control, Automation and Systems Engineering
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• 제4권1호
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• pp.2-8
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• 2002

This paper discusses haptic display for grasping a virtual object by two fingers. Much research has been done on fundamental analysis for stability of haptic display. But it is difficult to apply the results immediately to grasping situations by two fingers, since the studies usually deal with a single device and a single object and the fingertip force in grasping situations has two components, internal and external components. The conventional methods, which specify the coupling impedance at each contact point separately, have no other alternative but to specify the impedance for the sum of the internal and external components. So even if only the impedance for the external force should be changed, the impedance for the internal force is also changed at the same time. In this paper, a new method, in which the coupling impedance is specified separately for the internal and external forces, is proposed and the stability of the proposed method is discussed using passivity analysis for 1 -DOF(Degree-Of-Freedom) system. Finally, some experiments are performed to study the effects of the proposed method.