• Title/Summary/Keyword: color display

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Electroluminescence properties of white organic light-emitting devices fabricated utilizing a $CaAl_{12}O_{19}:Mn^{4+}$ phosphor layer acting as a color conversion layer

  • Ahn, S.D.;Choo, D.C.;Kim, T.W.;Lee, J.Y.;Park, J.H.;Kwon, M.S.;Chu, C.;Ha, J.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2009.10a
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    • pp.697-699
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    • 2009
  • Optical properties of white organic light-emitting devices (WOLEDs) fabricated utilizing a phosphor layer acting as a color conversion layer were investigated. The WOLEDs were achieved due to the enhancement in the color conversion efficiency of the phosphor layer, and the chromaticity coordinates of WOLEDs were (0.29, 0.33).

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Comparison of Beef Color Stability during Display of Two Muscles between Japanese Shorthorn Steers and Japanese Black Steers

  • Muramoto, T.;Higashiyama, M.;Kondo, T.
    • Asian-Australasian Journal of Animal Sciences
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    • v.17 no.9
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    • pp.1303-1308
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    • 2004
  • The beef color stability during display of two muscles, m. longissimus thoracis and m. semitendinosus, of Japanese Shorthorn steers (n=14) was compared with that of Japanese Black steers (n=14). The beef color of each carcass was evaluated according to the Japanese Grading Standards at 24 h post mortem. Steak samples from muscles were over-wrapped with PVC film and displayed under fluorescent lights at $4^{\circ}C$ for 9 days. Metmyoglobin percentages of steak samples were determined at days 0, 3, 6 and 9. The overall grade of beef color of the carcasses of Japanese Shorthorn steers was significantly (p<0.05) lower than that of Japanese Black steers. The metmyoglobin percentages during the display of two muscles of Japanese Shorthorn steers were significantly (p<0.05) lower than those of Japanese Black steers. These results suggested that though beef color evaluation of the carcasses of Japanese Shorthorn steers was lower than that of Japanese Black steers, the beef color stability during the display of the muscle of Japanese Shorthorn steers was higher than that of Japanese Black steers.

Full Color Large Area Flexible Plasma Displays

  • Wedding, Carol;Strbik, Oliver;Peters, Edwin
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.1237-1239
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    • 2008
  • Imaging Systems Technology is conducting research and development in large area flexible plasma displays. These displays will be used for low cost dynamic signage and billboards. In this paper, IST will report its current progress in achieving very bright full color displays.

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Visual Resolution Enhancement Method for a Delta-structured Display (델타 배열 구조를 갖는 디스플레이에서의 시각적 해상도 향상 방법)

  • 최원희;이성덕;김창용
    • Proceedings of the IEEK Conference
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    • 2003.11a
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    • pp.19-22
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    • 2003
  • This paper proposes the method of visual resolution enhancement to render a color image on a delta-structured display. The proposed method adopted a subpixel rendering method to reduce a color fringe error caused by delta- structured display and to improve visual resolution

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A Study on the Trend of Show window Display - Focused on department of kangnam area - (쇼윈도우 디스플레이 경향에 관한 연구 - 강남지역 백화점을 중심으로-)

  • 권양숙
    • Korean Institute of Interior Design Journal
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    • no.38
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    • pp.233-240
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    • 2003
  • The purpose of this study was to find the coordination trend of the Image of the color and object from the department show-window display locating in the kangnam area. The result of this study were summarized as following: 1) Show window display determinating the first image of department-store marketing service, playing the role of visual marketing provides the valuable impressions with shoppers in the times of sensibility, 2) In contemporary recognition of "Design is namely culture", show window display proceeds on the direction of concrete and practical presentation of merchandise as many customers are pursuing the high graded luxury brands while their life styles change. 3) Main concept is represented by the coordinated fashion goods on the mannequin or the body and the main theme is displayed variously in the circumferential area or on the articles with the abstract and concrete objects of diverse forms of dominant color and accent color conveying the seasonal theme precisely. 4) The compositive element of color Is the decisive factor of the visual sense of space In the coordination-trends of show window display specially representing the seasonal theme or the intentional messages and conduces to the psychological and mental desire in human and the circumstances, 5) Following the color, the compositive element of object presents the concrete image of theme or the abstract and geometrical sense of space besides the visual sense of space and shows the proportionality and the activity in displaying the show window space.dow space.

Liquid Crystal Display with High and Stable Color Gamut by Using Pre-compensated Tri-chromatic LED Backlight

  • Chiu, Tien-Lung;Lee, Jiun-Haw
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1515-1518
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    • 2007
  • We demonstrate a high color gamut liquid crystal display (LCD) system (>100 %) by using a precompensated tri-chromatic LED-backlight module over a temperature range of (25 to $70^{\circ}C$), whose pre-compensated optical characteristic balances the spectral redshift and intensity decrease due to the temperature rising during operation.

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Highly efficient and stable polymer light emitting display

  • Kim, Sung-Han;MacPherson, Charlie;Srdanov, Gordana;Chen, Peter;Stevenson, Matt;Baggao, Erlinda;Yu, Gang;Parker, Ian;O’Regan, Marie
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1044-1045
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    • 2005
  • Rapid progress has been achieved towards commercially viable full color polymer OLED devices. New full color polymer OLED displays which incorporate a novel hole injecting-transporting layer show high efficiency, low operating voltage and long lifetimes. The performance of a 14.1" WXGA a-Si based solution processed AMOLED full color display is described.

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A Study on Lambertian Color Segmentation and Canny Edge Detection Algorithms for Automatic Display Detection in CamCom (저속 카메라 통신용 자동 디스플레이 검출을 위한 Lambertian 색상 분할 및 Canny Edge Detection 알고리즘 연구)

  • Han, Jungdo;Said, Ngumanov;Vadim, Li;Cha, Jaesang
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.11 no.5
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    • pp.615-622
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    • 2018
  • Recent advancements in camera communication (CamCom) technology using visible light exploited to use display as an luminance source to modulate the data for visible light data communication. The existing display-CamCom techniques uses the selected region of interest based camera capturing approach to detect and decode the 2D color coded data on display screen. This is not effective way to do communicate when the user on mobility. This paper propose the automatic display detection using Lambertian color segmentation combined with canny edge detection algorithms for CamCom in order to avoid manual region of interest selection to establish communication link between display and camera. The automatic display detection methods fails using conventional edge detection algorithms when content changes dynamically in displays. In order to solve this problem lambertian color segmentation combined with canny edge detection algorithms are proposed to detect display automatically. This research analysed different algorithms on display edge recognition and measured the performance on rendering dynamically changing content with color code on display. The display detection rate is achieved around 96% using this proposed solutions.

Foreground object detection in projection display (프로젝션 화면에서 전경물체 검출)

  • Kang Hyun;Lee Chang Woo;Park Min Ho;Jung Keechul
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.41 no.1
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    • pp.27-37
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    • 2004
  • The detection of foreground objects in a projection display using color information can be hard due to changing lighting conditions and complex backgrounds. Accordingly, the current paper proposes a foreground object detection method using color information that is obtained from the input image to the Projector and an image captured by a camera above the projection display. After pixel correspondences between the two images are found by calibrating the geometry distortion and color distortion, the natural color variations are estimated for the projection display. Then, any pixel that has another variation not resulting from natural geometry or color distortion is considered a part of foreground objects, because a foreground object in a projection display changes the values of pixels. As shown by experimental results, the proposed foreground detection method is applicable to an interactive projection display system such as the DigitalDesk