• Title/Summary/Keyword: Wide display devices

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CoDisplay : 대형 디스플레이 장치를 활용하기 위한 VNC 기반회의도구 (CoDisplay : A Conference Tool Based on VNC for Utilizing Wide Display Devices)

  • 이태호;박지혜;이기훈;이명준
    • 한국정보통신학회논문지
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    • 제13권8호
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    • pp.1666-1672
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    • 2009
  • 최근 대형 디스플레이 장치를 활용한 의사전달행위가 보편화되고 있다. 따라서 효과적인 의사전달을 지원할 수 있도록 대형 디스플레이 장치를 효율적으로 공유하는 것이 바람직하다. VNC(Virtual Network Computing)는 데스크톱 공유 도구로서 다른 지역에 위치한 컴퓨터로 데스크톱 화면을 전송할 수 있다. 또한 VNC를 이용하여 두 명 이상의 사용자가 동시에 같은 데스크톱 화면을 사용할 수 있다. 그러나 현재 VNC가 지원하는 기능만으로 대형 디스플레이 장치를 효율적으로 공유하는 것은 어려운 일이다. 본 논문에서는 VNC를 이용하여 대형 디스플레이 장치를 공유하는 회의도구인 CoDisplay 개발에 대하여 기술한다. 회의 참가자들은 네트워크 주소를 이용하여 대형 디스플레이 장치에 접속하며 자신의 데스크톱 화면을 내장된 VNC를 이용하여 전송한다. 또한 여러 데스크톱 화면을 배열하고 전환하는 기능을 통하여 대형 디스플레이 장치를 효과적으로 공유할 수 있다.

Wide-Viewing Characteristics of Self-Formed Micro-Domains in a Liquid Crystal Display with Dielectric Surface Gratings

  • Yoon, Tae-Young;Park, Jae-Hong;Yu, Chang-Jae;Lee, Sin-Doo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2002년도 International Meeting on Information Display
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    • pp.452-455
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    • 2002
  • We demonstrate the wide-viewing characteristics of a twisted nematic liquid crystal display (LCD) with self-formed micro-domains through the topographical alignment and fringe field effects of dielectric surface gratings (DSG). The mutual optical compensation between micro-domains within each pixel eliminates the contrast inversion phenomenon of TN mode without complex surface treatments.

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The Injection of PDLC Solution Mixture in a Reduced Pressure

  • Kim, Kang-Pil;Yang, Kee-Jeong;Kim, Dae-Hwan;Choi, Byeong-Dae
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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    • pp.524-526
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    • 2007
  • Polymer dispersed liquid crystal (PDLC) films consist of micro-droplets of liquid crystals dispersed in a polymer matrix. To make wide area PDLC filled devices, it is necessary to develop reliable method of vacuum injection of PDLC solution instead of the capillary injection. However, well-known 2-ethylhexylacrylate (EHA), main element of a prepolymer, exhibits the volatility problems, when the PDLC solution is placed under the low pressure. In this study, we developed the vacuum injection process to fill a wide area cell. Experimental results indicate that the $V_{90}$(turn-on voltage) of the PDLC cell made by a vacuum injection method are lower than that of the PDLC cell made by a capillary injection method.

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Enhancement of the luminous efficiency of organic light-emitting diodes utilizing a wide-bandgap impurity doped emitting layer

  • Choo, D.C.;Bang, H.S.;Kwack, B.C.;Kim, T.W.;Seo, J.H.;Kim, Y.K.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1447-1450
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    • 2007
  • The electrical properties of organic lightemitting devices (OLEDs) with wide-bandgap impurity-doped emitting layers (EML) were investigated. While the luminous efficiency of OLEDs with a NPB or a DPVBi-doped $Alq_3$ EML did not vary significantly with the current density, that of the OLEDs with a BCP-doped $Alq_3$ EML changed dramatically.

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디스플레이 현황과 발전방향 -실감 및 스킨 기기로의 확대 (Display Technologies for Immersive Devices and Electronic Skin)

  • 박영준
    • 전자통신동향분석
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    • 제34권2호
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    • pp.10-18
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    • 2019
  • Since the introduction of CRT(Cathode Ray Tube) in the 1950s, display technologies have been developed continuously. Flat panel displays such as PDP(Plasma Display Panel) and LCD(Liquid Crystal Display) were commercialized in the late 1990s, and OLED(Organic Light Emitting Diodes) and Micro-LED(Micro-Light Emitting Diodes) are now being developed and are becoming widespread. In the future, we expect to develop ultra-realistic, flexible, embedded sensor displays. Ultra-realistic display can be applied to AR/VR(Augmented Reality/Virtual Reality) devices and spatial light modulators for holography. The sensor-embedded display can be applied to robots; electronic skin; and security devices, including iris recognition sensors, fingerprint recognition sensors, and tactile sensors. AR/VR technology must be developed to meet technical requirements such as viewing angle, resolution, and refresh rate. Holography requires optical modulation technology that can significantly improve resolution, viewing angle, and modulation method to enable wide-view and high-quality hologram stereoscopic images. For electronic skin, stable mass production technology, large-area arrays, and system integration technologies should be developed.

LCD Display 설비 Contents의 Kinect기반 동작제어 기술 구현에 관한 연구 (A Study on Implementing Kinect-Based Control for LCD Display Contents)

  • 노정규
    • 전기학회논문지
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    • 제63권4호
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    • pp.565-569
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    • 2014
  • Recently, various kinds of new computer controlled devices have been introduced in a wide range of areas, and convenient user interfaces for controlling the devices are strongly needed. To implement natural user interfaces(NUIs) on top of the devices, new technologies like a touch screen, Wii Remote, wearable interfaces, and Microsoft Kinect were presented. This paper presents a natural and intuitive gesture-based model for controlling contents of LCD display. Microsoft Kinect sensor and its SDK are used to recognize human gestures, and the gestures are interpreted into corresponding commands to be executed. A command dispatch model is also proposed in order to handle the commands more naturally. I expect the proposed interface can be used in various fields, including display contents control.

FLEXMatters;A Consortium for Production of Flexible Devices

  • West, John L.;Khan, Asad
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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    • pp.203-206
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    • 2007
  • The FLEXMatters initiative is building a collaboration of companies and universities to develop and produce flexible devices. Kent Displays leads the production of flexible displays using their bistable cholesteric technology. The FLEXMatters members are collaborating to develop the flexible manufacturing process that will are common to a wide variety of devices.

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Application of Polymer Network Liquid Crystal to Mobile Display and its Electro-Optical Characteristics

  • Woo, Sung-Ho;Jeon, Chan-Wook;Yang, Kee-Jeong;Choi, Byeong-Dae;Rajesh, Kumar;Ahn, Byung-Chul
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.1473-1475
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    • 2006
  • The electro-optic properties of an active-matrix polymer network liquid crystal display (AM-PNLCD) with crossed polarizer films to improve its contrast ratio were evaluated. By using crossed polarizer films, it shows good contrast ratio as well as wide viewing angle and adequate response time at normal TFT-twisted nematic (TN) LCD driving voltage (2.8V).

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대화면 구동에 따른 데이터 기입 문제 해결을 위한 PDP 구동파형 설계 (Design of PDP driving waveform for the addressing problem with wide screen driving)

  • 오순택;김준형;이동호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
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    • pp.848-851
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    • 2003
  • Display devices are becoming increasingly important as an interface between humans and machines in the growing information society In display device, PDP(Plasma Display Panel) has many advantages in that wide screen, light weight, thin, wide viewing angle and unaffected by magnetic field. In this paper, modified ramp waveform is suggested by Vt Close Curve, and PDP driving circuit is designed by modified ramp waveform, this modified ramp waveform have more addressing wall voltage better then the old ramp waveform.

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A Novel Web-based Management of Networked Display for Advanced Collaboration Environment

  • Ramachandra, Vinay;Han, Sang-Woo;Bae, Chang-Hyeok;Kim, Jong-Won
    • 한국HCI학회:학술대회논문집
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    • 한국HCI학회 2009년도 학술대회
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    • pp.221-226
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    • 2009
  • Not many years ago, people found the contemporary technology expensive and difficult to use in collaborative type of meetings. Today, with the technology advanced to high standards and accessible at cheaper price, its adaption is becoming more and more ubiquitous with wide range of applications. Today's meeting rooms are not just plain old telephone systems with microphones and speakers. Today's meeting rooms are smart and intelligent. They can identify the participants; they can provide natural view of remote participants; they can proactively manage resources for collaboration and so on. More effective collaboration is possible with deployment of devices like high-definition cameras, advanced displays, sensors, gigabit networks, trackers, pointers, and high-end audio devices. Devices alone are not enough in the meeting rooms. We need software infrastructure to manage the devices and meeting contexts. One such software infrastructure is SMeet, a Smart Meeting space, which we have developed to provide an effective multi-party remote collaboration environment. Networked display systems are used in such advanced collaboration environment for better visualization. In this paper we discuss a novel approach to control and manage networked display systems in SMeet environment.

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