Title:
プロジェクター及びフォーカス調整方法
Document Type and Number:
Japanese Patent JP6702600
Kind Code:
B2
Abstract:
A projector including: a display unit equipped with an image-forming surface made up of a plurality of pixels; a projection lens that is capable of focus adjustment and that projects an image that is formed on the image-forming surface onto a projection surface; a distortion correction processing unit that, on the basis of distortion correction data for correcting distortion of an image projected onto the projection surface, generates a corrected image by enlarging and/or reducing an image indicated by an input video signal and forms the corrected image on the image-forming surface; and a control unit that adjusts the focus of the projection lens on the basis of the distortion correction data such that a focus range on the projection surface is increased.
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| JP2017021073 | PROJECTION TYPE DISPLAY DEVICE |
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Inventors:
Shigeru Fujino
Application Number:
JP2017565338A
Publication Date:
June 03, 2020
Filing Date:
February 03, 2016
Export Citation:
Assignee:
NEC Display Solutions Co., Ltd.
International Classes:
H04N5/74; G03B21/00; G03B21/14
Domestic Patent References:
| JP2015115801A | ||||
| JP2015115788A | ||||
| JP2005031286A | ||||
| JP2014197739A | ||||
| JP2005150919A |
Attorney, Agent or Firm:
Akio Miyazaki
Masaaki Ogata
Masaaki Ogata