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Patent Searching and Data


Title:
VIRTUAL IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/031549
Kind Code:
A1
Abstract:
A virtual image display device for displaying a virtual image visually recognizable from a visual recognition area (EB) by reflecting display light by a projection part (3a) is provided with: a viewpoint division part (20, 220, 320) that has a plurality of viewpoint division elements (21, 221, 321) for, in order that a plurality of viewpoints (VP) are arranged in the visual recognition area, dividing the viewpoints; and a disparity image display part (12) that has a screen (13a) for emitting the display light to be transmitted through the viewpoint division part, and displays a disparity image associated with each of the viewpoints in each area (CGA) on the screen individually corresponding to each of the viewpoint division elements. Formula AA holds where Pd is the arrangement pitch of the viewpoint division elements in a virtual image (VI1) of the viewpoint division part, Pe is the arrangement interval between the viewpoints in the visual recognition area, and L is a distance from the visual recognition area to the virtual image of the viewpoint division part.

Inventors:
ISHIHARA KAZUYUKI (JP)
ANDO HIROSHI (JP)
Application Number:
PCT/JP2019/026011
Publication Date:
February 13, 2020
Filing Date:
July 01, 2019
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
G02B27/01; B60K35/00; G02B3/06
Domestic Patent References:
WO2015145934A12015-10-01
Foreign References:
JP2009008722A2009-01-15
JP2005326610A2005-11-24
JP2016065908A2016-04-28
JP2011085790A2011-04-28
US20180052309A12018-02-22
Attorney, Agent or Firm:
JIN Shunji (JP)
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