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High Contrast Image Projection using Electronic Paper Screen-Confirmation of Performance in a Bright Room

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Projected image on a screen is not always vivid enough when it is projected in a bright room where audiences want to read paper documents simultaneously. We have suggested a new projection system which can realize high contrast image projection in a bright room. It is consisted of electronic paper screen, projector and LED room light. The e-paper screen alternates its whole surface white/black with 120Hz. Room lights are controlled with the same frequency of 120 Hz with the opposite phase as that of the e-Paper screen. We have confirmed that our new system has achieved higher contrast than the conventional projection system and also enough readability of paper documents in the room simultaneously. We have thus confirmed that our new system can bring an ideal condition, for audience, which can realize a vivid image projection in a bright room.

Document Type: Research Article

Publication date: January 1, 2011

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  • For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.

    Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.

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