Title:
DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/070080
Kind Code:
A1
Abstract:
Provided is a display device with which it is possible to perform display while quickly changing virtual images having differing display positions, including depth directions. A head up display device 200 serving as a display device is provided with: an imaging optical system 15 that is a first projection optical system for projecting display light DL as image light that is formed by a drawing device 11; an intermediate screen 19 that diffuses the light at a projection position of the imaging optical system 15; a virtual image formation optical system 17 that is a second projection optical system for expanding and projecting an intermediate image TI formed on the intermediate screen 19; and a rotary drive unit 64 that rotates about a reference axis SX of the intermediate screen 19, whereby a functional area FA of the intermediate screen 19 is moved in the direction of an optical axis AX. The intermediate screen 19 has a three-dimensional-object formation unit 116 configured such that the position thereof in the direction of the optical axis AX of the functional area FA changes due to the rotation.
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Inventors:
NOMURA EIJI (JP)
NAKAMURA AKIHIRO (JP)
SUGAWARA KAZUHIRO (JP)
HASHIMURA JUNJI (JP)
YAMADA NORIHIDE (JP)
KOJIMA TOSHIYUKI (JP)
NAKAMURA AKIHIRO (JP)
SUGAWARA KAZUHIRO (JP)
HASHIMURA JUNJI (JP)
YAMADA NORIHIDE (JP)
KOJIMA TOSHIYUKI (JP)
Application Number:
PCT/JP2018/037491
Publication Date:
April 11, 2019
Filing Date:
October 05, 2018
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
B60K35/00; G02B27/01; G02B27/22; G08G1/16
Domestic Patent References:
| WO2017125974A1 | 2017-07-27 | |||
| WO2017134876A1 | 2017-08-10 |
Foreign References:
| JP2013073229A | 2013-04-22 | |||
| JPS58145914A | 1983-08-31 | |||
| JPH03126910A | 1991-05-30 | |||
| JPH04289845A | 1992-10-14 | |||
| JP2013073204A | 2013-04-22 | |||
| US20160266477A1 | 2016-09-15 | |||
| JP2015127160A | 2015-07-09 |
Other References:
See also references of EP 3693783A4
Attorney, Agent or Firm:
FUKUDA, Mitsuhiro (JP)
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