Title:
HEAD-UP DISPLAY
Document Type and Number:
WIPO Patent Application WO/2022/270343
Kind Code:
A1
Abstract:
Provided is a head-up display having improved resistance to changes in external environment. This head-up display comprises: a light source 21r, 21g, 21b that lights up at a first luminance and a second luminance lower than the first luminance; and a control unit that controls the light source 21r, 21g, 21b in a first mode in which the light source 21r, 21g, 21b is controlled so as to light up at the first luminance in a first waveform shape, and in a second mode in which the light source 21r, 21g, 21b is controlled so as to light up at the second luminance in a second waveform shape. The control unit controls the light source 21r, 21g, 21b on the basis of a first chromaticity correction value that is a chromaticity correction value in the first mode, and a second chromaticity correction value that is a chromaticity correction value in the second mode and is different from the first chromaticity correction value.
Inventors:
MIZUNO SAYAKA
Application Number:
PCT/JP2022/023723
Publication Date:
December 29, 2022
Filing Date:
June 14, 2022
Export Citation:
Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G09G3/20; B60K35/00; G09G3/34; G09G5/00; G09G5/02; H05B45/10; H05B47/17
Domestic Patent References:
| WO2020241512A1 | 2020-12-03 | |||
| WO2012104967A1 | 2012-08-09 | |||
| WO2020054378A1 | 2020-03-19 |
Foreign References:
| JP2017097153A | 2017-06-01 | |||
| US20180152680A1 | 2018-05-31 |
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