• 제목/요약/키워드: High-resolution Display

검색결과 390건 처리시간 0.025초

New Techniques for Fabrication of Flexible Plastic LCD's

  • West, John.L.;Novotny, Grea R.;Fisch, Michael R.;Heinman, David
    • Journal of Information Display
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    • 제2권4호
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    • pp.15-18
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    • 2001
  • We report simple techniques to manufacture low-powered, high-resolution, reflective cholesteric displays using flexible plastic substrates. We use wax transfer printing to replace photo-lithography and incorporate polymer walls to increase the mechanical strength and lifetime of the displays. These printing methods can easily be adapted to roll-to-roll production.

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Long Electrode Gap을 가진 Macro Cell에서의 고효율 PDP 특성 연구 (High Efficacy Plasma Display Utilizing Macro Discharge Cell Structure with Long Electrodes Gap)

  • 김민태;허준;김윤기;김동현;이해준;이호준
    • 전기학회논문지
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    • 제61권9호
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    • pp.1314-1318
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    • 2012
  • Recently, applications of plasma display to the large public display and transparent display gain much attention. With this background, we report characteristics of opposite electrodes discharge cell with long electrode gap in comparison with conventional co-planar surface discharge. The cell size of test panel is $2950{\mu}m{\times}840{\mu}m$, which corresponds to that of the display having diagonal size of 130" with XGA resolution. Electrode gap of co-planar and opposite electrode structure are $240{\mu}m$ and $500{\mu}m$ respectively. These gap dimensions provide similar driving voltage windows. Experimental results show that opposite discharge provides approximately four fold higher luminous efficacy compared with that of the surface discharge. Resulting efficacy is found to be higher than 19 lm/W in green phosphor with 10 KHz continuous pulse operation.

분산 가시화를 위한 가상현실 타일 디스플레이 시스템의 개발 (A VR-based Tile Display System for the Distributed Visualization)

  • 차무현;이재경;황진상;한순흥
    • 한국CDE학회논문집
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    • 제15권3호
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    • pp.167-177
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    • 2010
  • In recent years, the use of high-resolution tiled display system which does not have restrictions on the size of the screen and implements various layout of tile is increasing in order to evaluate the digital mock-up in physical scale or explore large engineering data set in detail. In this study, we developed multi-channel distributed visualization system which provides a virtual reality-based visual contents using 3D open-source graphics engine. Efficient data structures and exchange methods were proposed as a scene synchronization technology in PC cluster environments. DLP-Cube based tiled visualization system which provides $5{\times}2$ layout of display wall was developed and we validated our approach using this system. In addition, we introduced integrated control program that administrates PC cluster environment in remote and controls the layout of display channels.

화상처리를 이용한 OLED 디스플레이의 픽셀 불량 검사에 관한 연구 (Defect Inspection of the Pixels in OLED Type Display Device by Image Processing)

  • 박경석;신동원
    • 한국기계가공학회지
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    • 제8권2호
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    • pp.25-31
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    • 2009
  • The image processing methods are widely used in many industrial fields to detect defections in inspection devices. In this study an image processing method was conducted for the detection of abnormal pixels in a OLED(Organic Light Emitting Diode) type panel which is used for small size displays. The display quality of an OLED device is dependent on the pixel formation quality. So, among the so many pixels, to find out the faulty pixels is very important task in manufacturing processing or inspection division. We used a line scanning type BW(Black & White) camera which has very high resolution characteristics to acquire an image of display pixel patterns. And the various faulty cases in pixel abnormal patterns are considered to detect abnormal pixels. From the results of the research, the normal BW pixel image could be restored to its original color pixel.

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Perspectives and Challenges of Electrophoretic Displays

  • Zhou, Guofu;Johnson, Mark T.;Henzen, Alex;Kamer, Jan van de
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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    • pp.236-240
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    • 2005
  • The commercialization of an active matrix e-reader display using E Ink microencapsulated electrophoretic (MEP) ink marked a big step towards comfortable reading over an extended period of time in an electronic book, as the high resolution display, jointly realized by Philips, E Ink and Toppan, has a true paper-like look and feel. Alternative electrophoretic material systems are being developed by SiPix and Bridgestone and progress has been made in the past two years. In this paper, electrophoretic material systems are briefly reviewed, after which the perspectives and challenges of electrophoretic displays are addressed and methods for generating gray tones are presented and discussed.

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Fabrication of 7" WVGA flexible electronic paper display by using toner particles

  • Ryu, Gi-Seong;Lee, Chang-Bin;Han, Sang-Kwuon;Chun, Seung-Hee;Song, Chung-Kun
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.364-366
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    • 2009
  • We successfully fabricated flexible electronic paper display (EPD) by using toner particles on plastic (PC) substrate. It has high resolution (WVGA : 800 ${\times}$ 480) and 7 inch diagonal viewable image size. The response time was about 0.25 msec at 90 V, a contrast ratio of about 2, a driving voltage of 60 V which we successfully demonstrated to display several images at.

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A Thin Film Transistor LCD Module with Novel OverDriving Timing Controller

  • Yu, Hong-Tien;Huang, Juin-Ying;Tseng, Wen-Tse;Wen, Harchson
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2004년도 Asia Display / IMID 04
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    • pp.1053-1056
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    • 2004
  • Chunghwa Picture Tubes, LTD. (CPT) has developed a Novel TFT-LCD Driving Techniquel. This new technique is developed in combination with other state-of-the-art image processing solutions such as image compression / decompression, motion detection, and noise reduction. By applying the Novel Driving Technique to the high resolution TFT-LCD, it was found that the response time can be effectively reduced with a lower overall system cost by smaller frame memory requirement, lower EMI by less memory band-width. Likewise, higher display quality can also be achieved in that the unexpected noises generated by over-drive can be eliminated. The Novel TFT-LCD Driving Technique has been successfully implemented to the 30 inch WXGA (1280${\times}$768) resolution TFT LCD commercial TV module. It was found that the quality of moving picture was better improved compared with that of the conventional fast response driving method.

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Optimal Barrier Coating Processes to maximize the Alignment of Layers on Plastic Substrates

  • Lee, Woo-Jae;Hong, Mun-Pyo;Seo, Jong-Hyun;Rho, Soo-Guy;Hong, Wang-Su;Jeon, Hyung-Il;Kim, Sang-Il;Chung, Kyu-Ha
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.II
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    • pp.988-990
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    • 2005
  • A 5.0-inch plastic TFT-LCD with the resolution of $400{\times}3{\times}300$ lines (120ppi) was developed. The device is a transmissive type with the transparent PES plastic substrates. The PES films with one side barrier coating were used for the device. In order to produce the high resolution display device, the alignments between all the layers for the TFT and CF are essential. The fundamental shrinkage effect and the thermal expansion behavior of the plastic substrates with and without the barrier coatings were studied. The proper annealing processes followed by immediate second bar-rier coating processes provide the optimal alignment between all the layers of the TFT and CF..

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Manufacturing Mobile Displays & Systems on Glass (

  • Nobari, Ali Reza;Mourgue, Stephane;Clube, Francis;Jorda, Mathieu;Iriguchi, Chiharu;Inoue, Satoshi;Grass, Elmar;Mayer, Herbert
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2005년도 International Meeting on Information Displayvol.I
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    • pp.676-678
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    • 2005
  • Future Mobile displays and the emerging systems on Glass for the upcoming TFT_LCDs or Active-OLEDs based on LTPS, and the exciting c-Si critically require very-high resolution lithography. We report the methodology and latest results on the alignment, magnification control and stitching systems on a HMA500 holographic mask aligner for printing $0.5{\mu}m-resolution$ display patterns onto glass substrates of dimensions up to $500mm{\times}400mm$.

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PZT를 이용한 Semi-inchworm구동기법의 초정밀 회전 스테이지 개발 (Development of ultra precision rotational stage using Semi-inchworm driving mechanism with PZT)

  • 윤덕원;안강호;한창수
    • 반도체디스플레이기술학회지
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    • 제6권1호
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    • pp.37-41
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    • 2007
  • Recently PZT is used in ultra precision mechanism field. PZT has a small motion range although it has a high resolution. Many methods, such as inchworm, impact driving, etc., have been applied for the expansion of the motion range.? In this study, the new actuating mechanism for rotational motion with two PZT actuators is proposed. The ultra precision rotational actuator which is made by proposed mechanism is able to operate both coarse and fine motion. The design parameters of the proposed mechanism are considered to improve the performance of the system. The rotational stage which is applied by the proposed mechanism is fabricated. The resolution and velocity for fabricated rotational stage are measured by laser interferometer.

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