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Single Isolation Structure of High Aperture Ratio for a PMOLED

  • Youn, Suk-Won;Byun, Byung-Hyun;Choi, Kyung-Hee;Yi, Seung-Jun;Choi, Do-Hyun
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.1028-1029
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    • 2006

  • We have developed a self-aligned single isolation structure (SIS) and an asymmetric single isolation structure with an image reversal photoresist to increase the aperture ratio in a passive matrix organic light emitting display (PMOLED). Compared to the conventional structure, the fabrication process is reduced by about 17% and the aperture ratio is enlarged over 4%.

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Applications of Side Scan Sonar for Shipbuilding and Offshore Project (선박 및 해양플랜트 건조를 위한 측면주사음탐기 적용 사례)

  • O, Hyeong-Sun;Kim, Tae-Hyung;Kwon, Soon-Do;Kim, Sung-Rag;Shin, Sung-Il;Kim, Sang-Jun;Kim, Seong-Yeop;Woo, Jong-Sik
    • Journal of Ocean Engineering and Technology
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    • v.29 no.5
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    • pp.373-379
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    • 2015

  • Side Scan Sonar (SSS) is capable of acquiring real-time data for seabed scouring, bathymetry, mine countermeasurement, etc. In a shipyard, an SSS package is utilized to measure the water depth and find debris in the sea because a sufficient water depth and non-interruption have to be ensured before implementing an underwater installation such as a large thruster. This paper presents the application and operation method of an SSS for the construction of an offshore project.

  • https://doi.org/10.5574/KSOE.2015.29.5.373 인용 PDF KSCI KPUBS HTML

Development of a Synchronous Web-Collaboration System (실시간 웹 협력 시스템 개발)

  • Kim, Il-Joong;Kim, Ji-Yong;Jung, Yong-Moon;Lee, Chang-Seok;Choi, Hong-Keun;Lee, Sung-Gu;Joe, Hak-Rae
    • Proceedings of the Korea Information Processing Society Conference
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    • 2001.10b
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    • pp.1205-1208
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    • 2001

  • 인터넷의 보급과 발전으로 그 동안 지리적인 한계로 인해 불가능했던 협력작업이 인터넷 가상공간에서 가능하게 되었다. 그 동안 이메일, 전자게시판, FTP와 같은 정적인 형태의 협력작업에 관한 연구에서 웹을 이용한 동적인 협력작업에 관한 연구가 진행되어 왔다. 최근에는 웹을 이용한 다양한 협력 기능이 요구되면서 공동 브라우징 (Co-browsing)과 같은 단순한 웹 협력이상의 다양한 협력작업을 만족시킬 수 있는 실시간 웹 협력 (Synchronous Web-Collaboration) 시스템 연구가 진행되고 있다. 본 논문에서는 실시간 웹 협력 시스템 구축에 필요한 시스템 구성요소와 설계 방법을 소개하고 비즈니스 특성을 고려한 실시간 웹 협력 시스템 구축 모델을 제시한다.

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IGBT VVVF INVERTER AS A PROPULSION SYSTEM FOR ELECTRIC CAR (전동차 견인용 IGBT VVVF 인버터)

  • Chung, E.S.;Park, Y.H.;Jang, K.H.;Lee, S.J.;Bae, B.H.;Kim, J.S.;Kim, S.H.
    • Proceedings of the KIEE Conference
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    • 1997.07a
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    • pp.373-375
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    • 1997

  • In this paper, we present IGBT VVVF inverters as a 1C1M propulsion system for electric car. These inverters are composed of high power IGBT's and controlled by compact control units. The control unit performs full digital control by using 32bit DSP and microcontroller. By using CAN-bus, high speed network is constructed within four control units. The stack is simplified and optimized by using plate bus and IGBT driver units of hybrid-type.

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