• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.911-912
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• 2006

The recent growth in the portable display industry has been dominated by flexible display, moreover, several developing of using LCD technology has been in making the flexible display work effectively, however flexible device is not practical. Recently, the study on the multi-display screen has been published as the needs of larger screen in mobile device has been increased. The multi-display screen which is composed of two LCD panels, has the characteristics of the seamless gap between two panels. To meet the needs of this multi-display, in this paper, the study is performed to design the seamless device which consist of LCD panels, light film, back light and driver, and finally, we evaluated the effectiveness of seamless folding mechanism.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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• pp.1159-1162
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• 2007

We have developed $16{\mu}m{\times}16{\mu}m$ digital micromirror array suitable for seamless-picture projection display system. This structure can improve the picture quality by making seamlesspicture image when combined with high-fill-factor microlens array to focus lights onto the mirror center. The fabricated micromirror shows excellent dynamic performances including the resonant frequency of 400 kHz.

• Journal of Information Display
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• 제11권1호
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• pp.28-32
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• 2010

A mini-projector prototype employing a LED light source, a nontelecentric structure, and an LCOS panel for application in the integrated 3D display was fabricated. A seamless image was obtained by tilting an array of mini-projectors. Seamless quality was created by the excellent uniformity of the projection intensity on the mini-projector's screen, which was simulated as 98.34%. Great uniformity can be realized by optimizing the design of the light source and the optics configuration, which is the key to such realization.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.1379-1382
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• 2009

The 3D display has been used in optical projection technology to connect twenty mini- projectors with seamless image tiling. In this way, we can improve the projected resolution by reducing each project screen and increase projected area by connect several mini-projectors. In this article, the illumination system uses the LED light source, non- telecentric structure and LCOS panel, and it's total length is less than 10 centimeter. It can build a seamless large display by tiling multiple projectors.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2007년도 추계학술대회
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• pp.392-397
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• 2007

이 논문은 유비쿼터스 컴퓨팅 환경에서 디스플레이와 디스플레이를 시청하는 개인 단말을 가진 사용자간의 연결 완전성(Seamlessness)을 구현할 수 있는 디스플레이 모델을 제안한다. 기존의 디스플레이가 사람의 시청각에만 호소하는 것과는 달리, U-Display는 디스플레이에 컨텐트를 표시함과 동시에 해당 컨텐트의 링크를 개인 단말을 휴대한 사용자에게 제공함에 따라 디스플레이 및 디스플레이 사용자간의 seamless한 정보 전달이 가능해진다. 논문은 U-Display의 정의와 유비쿼터스 기술을 이용한 디스플레이 비즈니스 모델의 제안 및 분석을 담고 있다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.7-7
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• 2009

This presentation will introduce Merck's investments for business to support the future market growth as "trendsetter contributor". As the world's oldest phamaceutical & chemical company, Merck has made the seamless investment for innovation. The investment for the new technologies is being continued for new LC materials, OLED material, organic electronic materials for flexible display, more environment friendly products of cell Etching Solutions to Solar Cell makers and variety of high-efficiency phosphors for LED applications. These investment portfolio is well in line with future business environment driving for eco-friendly, thin, fast, low power consumption."

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 추계학술대회 논문집
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• pp.212-215
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• 2005

The needs of larger screen in mobile device would be increased as the time of ubiquitous and convergence is coming. And, the type of mobile device has been evolved from bar, slide to row. Recently, the study on the multi-display screen which has seamless gap between two display panel has been published, and moreover the System On Chip(SOC) design strategy of core chip has been the most promising Field-Programmable Gate Array(FPGA) technology in the display system. Therefore, in this paper, we proposed the design technique of SOC and evaluated the effectiveness with Very high speed Hardware Description Language(VHDL) Intellectual Property (IP) for the operation of multi display device driver. Also, This IP design would be to allow any kind of user interface in control system.

• 한국HCI학회논문지
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• 제4권2호
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• pp.9-16
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• 2009

최근 3차원 입체 디스플레이에 대한 관심이 증가하고 있다. 무안경식 다시점 입체 디스플레이(Multiple-view Autostereoscopic Display)는 관찰자가 셔터 글래스(Shutter glasses)또는 HMD(Head Mounted Display)와 같은 특별한 장치를 착용하지 않고도 여러 시점(Multiple-view)에서 입체 영상을 볼 수 있어 가상현실(Virtual Reality), 모바일, 3D TV 등의 분야에서 각광 받고 있다. 하지만, 디스플레이 설계 시 정해진 거리와 시역 내에 관찰자가 위치해 있어야만 입체 영상을 볼 수 있다는 문제점이 있다. 본 연구에서는 무안경식 다시점 입체 디스플레이 시스템을 구축하여 이 시스템에서 관찰자의 시점 변경에도 실시간으로 자연스러운 3차원 입체 영상을 보여 주기 위한 효율적인 GPU기반 렌더링 기법을 제안한다.

• Journal of Power Electronics
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• 제16권5호
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• pp.1821-1832
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• 2016

This study presents a strategy using the synchronized output regulation method (SOR) for controlling inverters operating in stand-alone and grid-connected modes. From the view point of networked dynamic systems, SOR involves nodes with outputs that are synchronized but also display a desirable wave shape. Under the SOR strategy, the inverter and grid are treated as two nodes that comprise a simple network. These two nodes work independently under the stand-alone mode. An intermediate mode, here is named the synchronization mode, is emphasized because the transition from the stand-alone mode to the grid-connected mode can be dealt as a standard SOR problem. In the grid-connected mode, the inverter operates in an independent way, in which the voltage reference changes for generalized synchronization where its output current satisfies the required power injection. Such a relatively independent design leads to a seamless transfer between operation modes. The closed-loop system is analyzed in the state space on the basis of the output regulation theory, which improves the robustness of the design. Simulations and experiments are performed to verify the proposed control strategy.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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• pp.85-89
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• 2007

This paper presents the method to provide a fast service for user in image manipulation such as zooming and panning of huge size high resolution satellite image (e.g. Giga bytes per scene). The proposed technique is based on the hierarchical structure that has 3D-Tiling in horizontal and vertical direction to provide the image service more effectively than 2D-Tiling technique in the past does. The essence of the proposed technique is to create tiles that have optimum level of horizontal as well as vertical direction on the basis of current displaying area which changes as user manipulates huge image. So this technique provides seamless service, and will be very powerful and useful for manipulation of images of huge size without data conversion.