Title:
PROJECTION DISPLAY DEVICE AND METHOD FOR CORRECTING DISPLAY POSITION OF PROJECTED IMAGE
Document Type and Number:
WIPO Patent Application WO/2023/199852
Kind Code:
A1
Abstract:
An image shift correction amount storage unit (32) stores an image shift correction amount in correspondence with the elapsed time since the start of operation timed by a timekeeping unit (34) when a user uses a position adjustment unit (350) to adjust the display position of a projected image. When the device has started operating, the control unit (30) acquires a temperature index based on a temperature detected by a temperature sensor (20) and references a table retained in a table retention unit (31) to obtain an estimated elapsed time corresponding to the acquired temperature index. The control unit (30) controls the position adjustment unit (350) to adjust the display position of the projected image by the image shift correction amount corresponding to a corrected elapsed time, which is the result of adding the estimated elapsed time that was obtained to the actual elapsed time since the start of operation.
Inventors:
SUZUKI TOMOHIKO (JP)
Application Number:
PCT/JP2023/014341
Publication Date:
October 19, 2023
Filing Date:
April 07, 2023
Export Citation:
Assignee:
JVCKENWOOD CORP (JP)
International Classes:
G03B21/00; H04N5/74
Foreign References:
| JP2011151640A | 2011-08-04 | |||
| JP2010060972A | 2010-03-18 | |||
| JP2014232167A | 2014-12-11 | |||
| JP2014077840A | 2014-05-01 | |||
| JP2012042780A | 2012-03-01 | |||
| CN110855966A | 2020-02-28 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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