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Patent Searching and Data


Title:
HEAD-UP DISPLAY DEVICE, DISPLAY CONTROL DEVICE, AND DISPLAY CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/193636
Kind Code:
A1
Abstract:
Through the present invention, during visual point tracking spot lighting control for radiating light to a partial region of an eye box in accordance with the visual point position of an operator, problems such as a virtual image becoming invisible are suppressed and discomfort is reduced when the visual point is lost or visual point loss becomes prone to occur. A head-up display (HUD) device which is mounted to a vehicle and which causes a virtual image of an image to be visually recognized has a display unit 145 for displaying an image, and a control unit 100 for performing visual point tracking spot lighting control for radiating light to a partial region of an eye box EB in accordance with the visual point position of an operator, the control unit 100 performing control so as to expand a region of a light source or a pixel that contributes to display of a virtual image in the display unit 145 when visual point loss in which the visual point position cannot be detected occurs, or when visual point loss becomes prone to occur, and to illuminate a wider illumination region than a partial illumination region of the eye box EB that was illuminated immediately prior to the expansion.

Inventors:
HADA MAKOTO
KASAHARA TSUYOSHI
Application Number:
PCT/JP2021/011997
Publication Date:
September 30, 2021
Filing Date:
March 23, 2021
Export Citation:
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Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G02B27/01; B60K35/00; G02F1/13357
Domestic Patent References:
WO2017002344A12017-01-05
Foreign References:
JP2018045143A2018-03-22
US20200012098A12020-01-09
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