Display system for vehicle
First Claim
1. A display for a vehicle, said system conprising:
- a projective display means mounted on the vehicle and having a display device for displaying data, said projective display means functioning to project a display image of said display device onto a front glass of the vehicle, thereby forming a virtual image of said display image in front of said front glass, said projective display means having a rotatably supported housing for housing said display device, and a rotational axis on which said housing is mounted, said rotational axis extending through said housing, said projective display means further having an optical system for projecting said display image of said display device onto said front glass, said display device being disposed within a focus of said optical system;
a position adjusting means for adjusting the position of said virtual image formed in front of said front glass by shifting a projective optical axis from said projective display means to said front glass, said position adjusting means having an electric motor for rotating said housing about said rotational axis, a projective display position of said display image onto said front glass being changed upon rotation of said housing about said rotational axis by said electric motor;
an external light detecting means for detecting an external light incident from the exterior through said optical system, said external light detecting means outputting an electrical signal proportional to the magnitude of the external light; and
a preventing means for preventing an external light from being incident on said display device through said optical system when the level of the external light incident through said optical system is above a predetermined value, in accordance with the electrical signal provided from said external light detecting means.
1 Assignment
0 Petitions
Accused Products
Abstract
A display system according to the present invention is provided with a projective display unit for projecting a display image of a display device which displays various data, onto a front glass of the vehicle and forming a virtual image of the display image in front of the front glass, and a position adjusting means for adjusting the position of the virtual image formed in front of the front glass by shifting a projective optical axis of the display image extending to the front glass, whereby the whole surface of the front glass in front of the driver can be utilized as a display image projection surface and hence the virtual image of the display image can be formed in a desired position aligned with the line of vision of the driver without obstructing the front sight of the driver.
179 Citations
18 Claims
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1. A display for a vehicle, said system conprising:
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a projective display means mounted on the vehicle and having a display device for displaying data, said projective display means functioning to project a display image of said display device onto a front glass of the vehicle, thereby forming a virtual image of said display image in front of said front glass, said projective display means having a rotatably supported housing for housing said display device, and a rotational axis on which said housing is mounted, said rotational axis extending through said housing, said projective display means further having an optical system for projecting said display image of said display device onto said front glass, said display device being disposed within a focus of said optical system; a position adjusting means for adjusting the position of said virtual image formed in front of said front glass by shifting a projective optical axis from said projective display means to said front glass, said position adjusting means having an electric motor for rotating said housing about said rotational axis, a projective display position of said display image onto said front glass being changed upon rotation of said housing about said rotational axis by said electric motor; an external light detecting means for detecting an external light incident from the exterior through said optical system, said external light detecting means outputting an electrical signal proportional to the magnitude of the external light; and a preventing means for preventing an external light from being incident on said display device through said optical system when the level of the external light incident through said optical system is above a predetermined value, in accordance with the electrical signal provided from said external light detecting means. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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4. A display system for a vehicle, said system comprising:
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a projective display means mounted on the vehicle and having a display device for displaying data, said projective display means functioning to project a display image of said display device onto a front glass of the vehicle, thereby forming a virtual image of said display image in front of said front glass, said projective display means having a rotatably supported reflecting member which reflects said display image to project it onto said front glass, and a rotational axis on which said reflecting member is mounted, said rotational axis extending through said reflecting member, said projective display means further having an optical system for projecting said display image of said display device onto said front glass, said display device being disposed within a focus of said optical system; a position adjusting means for adjusting the position of said virtual image formed in front of said front glass by shifting a projective optical axis from said projective display means to said front glass, said position adjusting means having an electric motor for rotating said reflecting member about said rotational axis, a projective display position of said display image onto said front glass being changed with rotation of said reflecting member about said rotational axis by said electric motor; an external light detecting means for detecting an external light incident from the exterior through said optical system, said external light detecting means outputting an electrical signal proportional to the magnitude of the external light; and a preventing means for preventing an external light from being incident on said display device through said optical system when the level of the external light incident through said optical system is above a predetermined value, in accordance with the electrical signal provided from said external light detecting means.
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18. A display system for a vehicle, said system comprising:
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a projective display means mounted on the vehicle and having a display device for displaying data, said projective display means functioning to project a display image of said display device onto a front glass of the vehicle, thereby forming a virtual image of said display image in front of said front glass, said front glass having a curvature, said projective display means further having a rotatably supported reflecting member which reflects said display image of said display device to project it onto said front glass, and a rotational axis on which said reflecting member is mounted, said rotational axis extending through said reflecting member; a position adjusting means for adjusting the position of said virtual image formed in front of said front glass by shifting a projective optical axis from said projective display means to said front glass, said position adjusting means having an electric motor for rotating said reflecting member about said rotational axis, a projective display position of said display image onto said front glass being changed with rotation of said reflecting member about said rotational axis by said electric motor; and a distortion correcting means for correcting a distortion of said virtual image of said display image caused by the curvature of said front glass, said distortion correcting means including a reflecting mirror having a reflection characteristic opposite to that based on the curvature of said front glass, said reflecting mirror functioning to reflect said display image of said display device in said projective display device to project said display image onto said front glass.
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Specification