US 11,237,390 B2Granted

Display system

AssigneeNEC Corporation

InventorsGo Watanabe, Fujio Okumura

Life of this patent

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Abstract

This display system includes: a projection device including a phase-modulation-type spatial light modulator element, a light source radiating light to a display part of the element, and a control circuit controlling the element and the light source; and projecting reflection light of the part of the element; and a reflecting mirror reflecting projection light of the device. The control circuit displays, on the part of the element, a first pattern and a second pattern associated with display information having different definition degrees. The reflecting mirror includes a first reflection region causing reflection light of a portion where the first pattern is displayed to enter, and reflecting the light toward a first display region, and a second reflection region causing reflection light of a portion where the second pattern is displayed to enter, and reflecting the light toward a second display region.

Claims10

Dependent claims

A display system comprising:

a projector configured to include a phase-modulation-type spatial light modulator element, a light source configured to radiate light to a display part of the spatial light modulator element, and a controller configured to control the spatial light modulator element and the light source, the projector being configured to project reflection light of a display part of the spatial light modulator element;
and
a reflecting mirror configured to reflect projection light of the projector, wherein
the controller is configured to display, on a display part of the spatial light modulator element, a first pattern and a second pattern associated with pieces of display information having different definition degrees, and
the reflecting mirror includes
a first reflection region which causes reflection light of a portion where the first pattern is displayed to enter, and then reflects the reflection light toward a first display region, and
a second reflection region which causes reflection light of a portion where the second pattern is displayed to enter, and then reflects the reflection light toward a second display region.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/334,500Filed 15 Sep 2017
Priority: JP JP2016-18407421 Sep 2016
Published: US 2021/0341736 A14 Nov 2021
Granted: 1 Feb 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G02B 27/0101
Head-up displays: characterised by optical features
B60K 35/23
Using visual output, e.g. blinking lights or matrix displays: head-up displays [HUD]
B60K 35/28
Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor: characterised by the type of the…
B60K 35/60
Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles: instruments characterised by their location or relative…