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.

Date of Patent:
Jan. 22, 2019

Filed:

Sep. 24, 2013
Applicant:

Maxell, Ltd., Kyoto, JP;

Inventors:

Tomoki Kobori, Tokyo, JP;

Yoshiho Seo, Tokyo, JP;

Yuya Ogi, Tokyo, JP;

Satoshi Oouchi, Tokyo, JP;

Assignee:

MAXELL, LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/31 (2006.01); H04N 9/28 (2006.01); G02B 26/10 (2006.01); G09G 3/02 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3185 (2013.01); G02B 26/101 (2013.01); G02B 26/105 (2013.01); G09G 3/025 (2013.01); H04N 9/312 (2013.01); H04N 9/317 (2013.01); H04N 9/3108 (2013.01); H04N 9/3135 (2013.01); H04N 9/3161 (2013.01); H04N 9/3164 (2013.01); H04N 9/3188 (2013.01); H04N 9/3194 (2013.01); G09G 2340/0464 (2013.01);
Abstract

The present invention prevents image quality degradation due to pixel enlargement even when using an increased angle of inclination on projecting an image obliquely from a laser scanning display device. A swing mirror is controlled so that the scanning line density in the vertical direction of a display section is uniform in accordance with information including the angle of inclination, the distance of projection, and the display size of the display device with respect to the display section. A lens control driver is controlled so that a collecting lens has a focal point on the display section in accordance with a scanning position in the vertical direction of the swing mirror. The swing mirror or an image correction processing unit is controlled so that a display size in the horizontal direction of a display image on the display section is uniform regardless of the scanning position in the vertical direction.


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