HEAD-UP DISPLAY DEVICE AND DISPLAY UNIT
First Claim
Patent Images
1. A head-up display device mounted on a vehicle for use, comprising:
- a projector configured to project display light including a display image onto a reflecting plate;
a pair of first light sources and a pair of second light sources configured to project emitted light onto the reflecting plate; and
a controller connected to the first light sources and the second light sources, whereinthe display light from the projector is reflected by the reflecting plate in a viewing direction to define a display area on the reflecting plate,the emitted light from the first light sources is reflected by the reflecting plate in the viewing direction to display a pair of first guide lights side by side adjacent to the display area on the reflecting plate,the emitted light from the second light sources is reflected by the reflecting plate in the viewing direction to display a pair of second guide lights at outer sides of the respective first guide lights on the reflecting plate, andthe controller controls lighting states of the first light sources and the second light sources to change at least one of number of light sources to be lit, a lighting cycle, and a lighting order of the first light sources and the second light sources in accordance with a differential value between a current traveling speed of the vehicle and a speed limit set for a road on which the vehicle is traveling.
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Abstract
A pair of first guide lights are displayed side by side adjacent to an HUD display area with emitted light from first light sources, and a pair of second guide lights are displayed at the outer sides of the respective first guide lights with emitted light from second light sources. At least one of the number of lighting lights, the lighting cycle, and the lighting order of the first light sources and the second light sources is changed in accordance with a differential value between the current speed and a speed limit set for a road on which the vehicle is traveling.
32 Citations
7 Claims
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1. A head-up display device mounted on a vehicle for use, comprising:
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a projector configured to project display light including a display image onto a reflecting plate; a pair of first light sources and a pair of second light sources configured to project emitted light onto the reflecting plate; and a controller connected to the first light sources and the second light sources, wherein the display light from the projector is reflected by the reflecting plate in a viewing direction to define a display area on the reflecting plate, the emitted light from the first light sources is reflected by the reflecting plate in the viewing direction to display a pair of first guide lights side by side adjacent to the display area on the reflecting plate, the emitted light from the second light sources is reflected by the reflecting plate in the viewing direction to display a pair of second guide lights at outer sides of the respective first guide lights on the reflecting plate, and the controller controls lighting states of the first light sources and the second light sources to change at least one of number of light sources to be lit, a lighting cycle, and a lighting order of the first light sources and the second light sources in accordance with a differential value between a current traveling speed of the vehicle and a speed limit set for a road on which the vehicle is traveling. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification