High Contrast Screen Suppressing Reflection and Diffusion of Ambient Light for Front Projection System

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  • Sato R.
    Department of Electrics, Graduate School of Engineering, Tohoku University
  • Katagiri B.
    Department of Electrics, Graduate School of Engineering, Tohoku University
  • Suzuki Y.
    Department of Electrics, Graduate School of Engineering, Tohoku University
  • Kano M.
    Department of Electrics, Graduate School of Engineering, Tohoku University
  • Uchida T.
    Department of Electrics, Graduate School of Engineering, Tohoku University:Sendai National College of Technology

Bibliographic Information

Other Title
  • 外光抑制型フロントプロジェクタ用スクリーン(発光型/非発光型ディスプレイ合同研究会)
  • 外光抑制型フロントプロジェクタ用スクリーン
  • ガイコウ ヨクセイガタ フロントプロジェクタヨウ スクリーン

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Abstract

Recently, wide variety of displays have been developed and are practically applied. Among them front projection displays have several features such as relatively large screen capability, high luminance and compact projector system. However, it has important problem of contrast reduction in a bright environment. We proposed a new front projection system for large screen by diffusing only projected light towards the viewing angle range and reflecting ambient light towards the other angle ranges. With this system, we realized a high quality and large size front projection display with a high contrast ratio even in a bright room.

Journal

  • ITE Technical Report

    ITE Technical Report 35.4 (0), 129-132, 2011

    The Institute of Image Information and Television Engineers

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