• Journal of the Semiconductor & Display Technology
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• v.11 no.3
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• pp.27-31
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• 2012

This paper presents a study on the design of photovoltaic system with reversal tracking reflector. The reversal tracking reflector is conceptually designed by using TRIZ. The 20 to 30% of incident rays cannot produce the current and reflected back to the glass surface because of high refractive index of solar cell which are produced from Si, GaAs. The solution of this problem has been derived using 6SC(6 steps creativity)TRIZ. The reflector which has the actuator can be trackback the sun. Reversal tracking reflector which mounted on the top of the system prevents the shadowing loss and improve the efficiency of track back function. The anti-glare reflector prevents the heat due to the concentrated reflected light rays.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.626-629
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• 2019

운전 중 운전자의 눈부심은 도로 상황 인식에 대해 악영향을 미치고, 운전자가 운전 중 필요로 하는 도로의 요소들을 적절히 고려할 수 있는 시간의 부재로 이어져 결국 교통사고로까지 이어질 수 있다. 본 논문에서는 자동차 운전자를 위한 단일 RGB 카메라와 스마트 필름 기반 눈부심 측정 및 완화 기법으로, RGB 카메라를 이용한 눈부심 검출 및 스마트 필름과의 연동으로 눈부심을 완화할 수 있는 기법에 대해 제안한다. 추후 본 기법으로 운전 중 다양한 원인으로 인해 발생할 수 있는 눈부심과 그에 따른 교통사고의 위험을 경감시키기 위한 도구로 활용될 수 있을 것으로 기대한다.

• Journal of Information Display
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• v.2 no.2
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• pp.52-60
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• 2001

The electrical and mechanical properties in indium-tin-oxide films deposited on polymer substrate were examined. The materials of substrates were polyethersulfone (PES) which have gas barrier layer and anti-glare coating for plastic-based devices. The experiments were performed by rf-magnetron sputtering using a special instrument and buffer layers. Therefore, we obtained a very flat polymer substrate deposited ITO film and investigated the effects of buffer layers, and the instrument. Moreover, the influences of an oxygen partial pressure and post-deposition annealing in ITO films deposited on polymer substrates were clarified. X-ray diffraction observation, measurement of electrical property, and optical microscope observation were performed for the investigation of micro-structure and electro-mechanical properties, and they indicated that as-deposited ITO thin films are amorphous and become quasi-crystalline after adjusting oxygen partial pressure and thermal annealing above $180^{\circ}C$. As a result, we obtained 20-25 ${\Omega}/sq$ of ITO films with good transmittance (above 80 %) of oxygen contents with under 0.2 % and vacuum annealing. Furthermore, using organic buffer layer, we obtained ITO films which have a rather high electrical resistance (40-45 ${\Omega}/sq$) but have improved optical (more than 85 %) and mechanical characteristics compared to the counterparts. Consequently, a prototype reflective color plastic film LCD was fabricated using the PES polymer substrates to confirm whether the ITO films could be realized in accordance with our experimental results.