• Title/Summary/Keyword: Free pixel placement

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A Design of Embedded LED Display Board Module and Control Unit which the Placement of Pixels is Free (픽셀 배치가 자유로운 임베디드 LED 전광판 모듈 및 제어장치 설계)

  • Lee, Bae-Kyu;Kim, Jung-Hwa
    • Journal of the Institute of Electronics and Information Engineers
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    • v.50 no.10
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    • pp.135-141
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    • 2013
  • In this paper, we installed three high brightness red, green, and blue LED in one socket and made one pixel unit. And we also developed the full-color display board module and control unit which can express various images such as text, graphics, video image with the combination of pixel units and a number of modules. LED display driver module have a driver circuit within the combination of the RGB pixel dot on unit area. These modules of the existing form can be high priced because of implementation a fixed resolution in specific space and installation space. To overcome these shortcomings, we developed a LED driver and LED pixel modules free in array at random pitch intervals. Display board module of this paper enabled to display smoothly video image which have many data processing quantity through dragging data speed up 36 frames per second. Also there are an effect which is provided more clear image because of improving the flickering of the existing display board.