Invention Application
- Patent Title: Projection display apparatus and image forming apparatus
- Patent Title (中): 投影显示装置和图像形成装置
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Application No.: US11892732Application Date: 2007-08-27
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Publication No.: US20080055555A1Publication Date: 2008-03-06
- Inventor: Yukio Nakamura , Mitsuhiko Ogihara , Katsuyuki Ito , Takashi Ushikubo
- Applicant: Yukio Nakamura , Mitsuhiko Ogihara , Katsuyuki Ito , Takashi Ushikubo
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: OKI DATA CORPORATION,OKI ELECTRIC INDUSTRY CO., LTD.
- Current Assignee: OKI DATA CORPORATION,OKI ELECTRIC INDUSTRY CO., LTD.
- Current Assignee Address: JP Tokyo JP Tokyo
- Priority: JP2006-234483 20060830
- Main IPC: G03B21/16
- IPC: G03B21/16 ; G03B21/20

Abstract:
A projection display apparatus includes an image forming section that forms an image based on image information received from an external device, and a projection lens that projects the image formed by the image forming section. The projection display apparatus includes a substrate, a plurality of light emitting elements, a first driver and a second driver. The light emitting elements are two-dimensionally arranged on the substrate. The light emitting elements include rows of light emitting elements and columns of light emitting elements such that the rows are substantially perpendicular to the columns. The first driver element selectively drives the rows. The second driver element selectively drives the columns. The plurality of light emitting elements include three groups of light emitting elements aligned either in the rows or in the columns, each group emitting light of a different wavelength from the remaining groups.
Public/Granted literature
- US07901088B2 Projection display apparatus and image forming apparatus with efficient power consumption Public/Granted day:2011-03-08
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