The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2015
Filed:
Mar. 23, 2012
Applicants:
Keiji Sugiyama, Kyoto, JP;
Kakuya Yamamoto, Hyogo, JP;
Kenichi Kasazumi, Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/22 (2006.01); H04N 9/31 (2006.01); G09G 3/00 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G03H 1/2294 (2013.01); G02B 27/0103 (2013.01); G09G 3/003 (2013.01); H04N 9/3161 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0178 (2013.01); G03H 2222/34 (2013.01); G03H 2225/60 (2013.01); G03H 2227/02 (2013.01); G03H 2270/55 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0252 (2013.01); G09G 2320/0285 (2013.01); G09G 2360/144 (2013.01); G09G 2360/145 (2013.01);
Abstract
A display device () includes: a light source () that outputs a laser beam; an illumination optical system () that emits illumination light of the laser beam; a diffraction pattern generation unit that generates a diffraction pattern from original image data; a spatial modulation element () that diffracts the illumination light by displaying the diffraction pattern; and a display control unit that performs at least one of a change in a display timing of a diffraction pattern the spatial modulation element () displays and a change in a size of a diffraction pattern the diffraction pattern generation unit generates.