• 반도체디스플레이기술학회지
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• 제17권4호
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• pp.101-104
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• 2018

Augmented Reality (AR) is an emerging technology and the applications of technology are still not fully unveiled. This paper explores a new application of augmented reality for new direction in art exhibitions, which aims to bring interactive learning experience to life. The project takes printed images on book or exhibiting arts to the next level by applying AR technology to provide a unique fascinating experience to its readers on mobile devices. AR technology composing with animation brings new digital entertainment experience to the user of art exhibitions. The key feature of this paper uses the technology presents auxiliary information in the field of view of an object on art exhibitions automatically without human intervention.

• 방송공학회논문지
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• 제12권2호
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• pp.137-147
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• 2007

프로젝션 기반의 증강현실(AR, augmented reality) 시스템이란, 고화질의 가상 정보를 프로젝터를 통하여 정해진 공간에 정확하게 표시해 주는 시스템을 말한다. 대부분의 증강현실 시스템은 사용자의 몰입감을 높이기 위해 고화질, 대화면을 제공하기 위한 디스플레이 장치를 사용한다. 또한 영상처리의 복잡도에 따라 고성능의 프로세스 장치를 요구하기 때문에 데스크탑 환경에서 처리되었다. 하지만 이러한 데스크탑 환경에서의 증강현실 시스템은 휴대가 불편하다는 단점을 가지고 있다. 다행히, 최근 프로젝터의 소형화와 모바일 프로세서의 성능 향상은 휴대가 편리한 모바일 증강현실 시스템의 등장을 가능하게 하였다. 그러나 기존의 모바일 증강현실 시스템은 작은 디스플레이를 이용하여 영상 정보를 표시해 주기 때문에 높은 해상도를 지원할 수 없으며, 사용자의 몰입감을 감소시킨다는 단점을 가지고 있다. 본 논문에서는 기존의 모바일 증강현실 시스템의 단점을 보완하기 위하여 PDA와 휴대형 프로젝터를 결합함으로써 장소의 제약 없이 고화질, 대화면의 증강현실 영상을 제공해 줄 수 있는 휴대형 프로젝션 기반의 디스플레이 시스템을 제안한다. 다양한 실험 결과 및 사용자 평가를 통해 모바일 환경에서의 프로젝션 기반의 증강 현실 시스템의 활용 가능성을 제시한다.

• 반도체디스플레이기술학회지
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• 제6권4호
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• pp.11-15
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• 2007

As preparing electrode for the OLED with the sputtering process, in order to be lower damage of the bottom organic layer and increase the life-time of the OLED, we prepared Al electrode for that by using Facing Targets Sputtering (FTS) system. Al electrode directly deposited on the cell (LiF/EML/HTL/Bottom electrode). Deposition condition was the working gas (Ar, Kr and Ar+Kr) and working gas pressure (1 and 6 mTorr). The film thickness and I-V curve of Al/cell were evaluated by a $\acute{a}$-step profiler and a semiconductor parameter (HP4156A) measurement. The thin film surface image was observed by a Atomic Force Microscope (AFM). In result, in comparison with about 11 [V] of the turn-on voltage of Al/cell with using the pure Ar gas, when Al thin film was deposited using the Ar-Kr mixture gas, the surface morphology was improved in some region and the turn-on voltage of Al/cell could be decreased to about 7 [V].

• 한국CDE학회논문집
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• 제19권3호
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• pp.272-280
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• 2014

Most of the car navigation systems pzrovide 2D or 3D virtual map-based driving guidance. One of the important issues is how to reduce cognitive burden to the driver who should interpret the abstracted information to real world driving information. Recently, an augmented reality (AR)-based navigation is considered as a new way to reduce cognitive workload by superimposing guidance information into the real world scene captured by the camera. In particular, head-up display (HUD) is popular to implement AR navigation. However, HUD is too expensive to be set up in most cars so that the HUD-based AR navigation is currently unrealistic for navigational assistance. Meanwhile, smartphones with advanced computing capability and various sensors are popularized and also provide navigational assistance. This paper presents a research on cognitive effect and responsiveness of an AR navigation by a comparative study with a conventional virtual map-based navigation on the same smartphone. This paper experimented both quantitative and qualitative studies to compare cognitive workload and responsiveness, respectively. The number of eye gazing at the navigation system is used to measure the cognitive effect. In addition, questionnaires are used for qualitative analysis of the responsiveness.

• 한국진공학회지
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• 제11권2호
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• pp.127-134
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• 2002

본 논문은 AC PDP에서 사용하는 가스의 혼합비, 압력, 페닝 효과를 고려한 가스 조합의 최적화를 통해 낮은 방전전압으로 휘도의 증가를 얻을 수 있는 고휘도, 고효율 PDP 페닝 기체 혼합비를 찾고자 하였다. He(70%)-Ne(27%)-Xe(3%)의 3원 혼합기체와 Ne(96%)Xe(4%)의 2원 혼합기체에 페닝 효과를 극대화하기 위한 소량의 Ar, Kr을 첨가하여 각각의 첨가비에 따른 방전 개시전압, 방전 유지전압, 휘도, 발광효율 등을 측정하였다. 또한 페닝효과에 의한 방전 공간상의 전자수 증가를 확인하기 위해 셀 내의 전극 위에 쌓이는 벽전하 양을 측정하였다. 소량의 Ar(0.01%-0.03%) 또는 Kr(0.01%-0.03%)을 HE-Ne-Xe과 Ne-Xe 혼합가스에 첨가했을 때 페닝효과에 기인하여 휘도 및 발광효율이 각각 최고 10%-20% 증가하였다. 또한 페닝효과를 확인하기 위한 벽전하의 양은 10%-25% 증가를 보였다. 방전개시전압 및 최소방전유지전압은 대략 2V-3V정도 감소하였다.

• 전자통신동향분석
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• 제28권4호
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• pp.45-52
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• 2013

차량용 증강현실 기술은 운전자의 신체적 인지적 부하를 최소화함으로써 운전자의 안전과 편의를 달성하기 위한 목적으로 차량에서 제공되는 정보를 운전자의 시야에 맞게 운전자 전방 실세계에 정합하여 제공하는 기술이다. 최근 차량의 지능화와 증강현실기술 접목의 다양화 및 디스플레이 기술의 급진한 발전으로 차량용 HUD(Head Up Display)기술 개발이 활발히 이루어지고 있다. 특히 최근에는 국내외 자동차 제조사 및 연구기관을 중심으로 AR(Augmented Reality)기술을 차량용 HUD에 접목한 AR-HUD 기술 개발이 진행 중이다. 본고에서는 이러한 배경을 토대로 차량용 HUD 기술 및 차량용 AR 기술의 개발 현황과 관련 이슈에 관하여 살펴보고자 한다.

• 반도체디스플레이기술학회지
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• 제20권4호
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• pp.157-160
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• 2021

As an insulator for a thin film transistor(TFT) and an encapsulation material of organic light emitting diode(OLED), aluminum oxide (Al₂O₃) has been widely studied using several technologies. Especially, in spite of low deposition rate, atomic layer deposition (ALD) has been used as a process method of Al₂O₃ because of its low process temperature and self-limiting reaction. In the Al₂O₃ deposition by ALD method, Ar Purge had some crucial effects on the film properties. After reaction gas is injected as a formation of pulse, an inert argon(Ar) purge gas is injected for gas desorption. Therefore, the process parameter of Ar purge gas has an influence on the ALD deposited film quality. In this study, Al₂O₃ was deposited on glass substrate at a different Ar purge time and its structural characteristics were investigated and analyzed. From the results, the growth rate of Al₂O₃ was decreased as the Ar purge time increases. The surface roughness was also reduced with increasing Ar purge time. In order to obtain the high quality Al₂O₃ film, it was known that Ar purge times longer than 15 sec was necessary resulting in the self-limiting reaction.

• 반도체디스플레이기술학회지
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• 제8권1호
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• pp.33-38
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• 2009

We have investigated the effect of the ambient gases on the characteristics of AZO thin films for the OLED (organic light emitting diodes) devices. These AZO thin films are deposited by rf-magnetron sputtering under different ambient gases (Ar, Ar+$O_2$, and Ar+$H_2$) at 300. In order to investigate the influences of the oxygen and hydrogen, the flow rate of oxygen and hydrogen in argon mixing gas has been changed from 0.2sccm to 1sccm and from 0.5sccm to 5sccm, respectively. The AZO thin films were preferred oriented to (002) direction regardless of ambient gases. The electrical resistivity of AZO film increased with increasing flow rate of $O_2$ under Ar+$O_2$ while under Ar+$H_2$ atmosphere the electrical resistivity showed minimum value near 1sccm of $H_2$. All the films showed the average transmittance over 80% in the visible range. The OLED device was fabricated with different AZO substrates made by configuration of AZO/$\acute{a}$-NPD/DPVB/$Alq_3$/LiF/Al to elucidate the performance of AZO substrate.

• 반도체디스플레이기술학회지
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• 제20권4호
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• pp.23-28
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• 2021

Augmented reality is a technique for combining virtual images into real life by showing information of virtual 3D objects on top of a real-world environment (Azuma et al., 2001). This study is an augmented reality-based educational content delivery device that receives user input that selects either a preset object or a photographed object for augmented reality-based training; It includes a three-dimensional design generation unit that generates a stereoscopic model of the augmented reality environment from an object, a three-dimensional view of the scene, a disassembly process of the developing road from a three-dimensional model, and a content control unit provided by the user terminal by generating educational content including a three-dimensional model, a scene chart, a scene, a decomposition process, and a coupling process to build a coupling process from the scene to the three-dimensional model in an augmented reality environment. The next study provides a variety of educational content so that children can use AR technology as well as shapes to improve learning effectiveness. We also believe that studies are needed to quantitatively measure the efficacy of which educational content is more effective when utilizing AR technology.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.1515-1518
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• 2009

Hydrophobic treatments were conducted for different kinds of substrates, glass substrate, silicon wafer and plastic substrate. Ar-$CH_4$ gas mixture was used as a discharge gas for the hydrophobic treatment. The change of the contact angle before and after treatment was measured and compared. Time evolution of the contact angle change after hydrophobic treatment was investigated.