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11 February 2011 A new emissive projection display technology and a high contrast DLP projection display on black screen
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Abstract
In this paper, Sun Innovations demonstrates an innovative emissive projection display (EPD) system. It is comprised of a fully transparent fluorescent screen with a UV image projector. The screen can be applied to glass windows or windshield, without affecting visible light transmission. The UV projector can be based on either a DLP (digital light processor) or a laser scanner display engine. For a DLP based projector, a discharge lamp coupled to a set of UV filters can be applied to generate a full color video image on the transparent screen. UV or blue-ray laser diodes of different wavelengths can be combined with scanning mirrors to generate a vector display for full windshield display applications. This display combines the best of both worlds of conventional projection and emissive display technologies. Like a projection display, the screen has no pixel structure and can be manufactured roll to roll; the display is scalable. Like an emissive display (e.g. plasma or CRT), the quality of the image is superior, with very large viewing angles. It also offers some unique features. For example, in addition to a fully transparent display on windows or windshields, it can be applied to a black substrate to create the first front projection display on true "black" screen that has superior image contrast at low projection power. This fundamentally new display platform can enable multiple major commercial applications that can not be addressed by any of the existing display technologies.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ted X. Sun and Botao Cheng "A new emissive projection display technology and a high contrast DLP projection display on black screen", Proc. SPIE 7932, Emerging Digital Micromirror Device Based Systems and Applications III, 793209 (11 February 2011); https://doi.org/10.1117/12.872778
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