Rotational light emitting display apparatus
First Claim
1. A light emitting display apparatus for displaying a stationary or animated image on a rotating object, the light emitting display apparatus comprising:
- a support attachable to the rotating object so as to having the same center of rotation as the rotating object;
a plurality of light emitting elements on said support and arranged in one or more generally parallel columns;
one or more image maps of an image to be displayed, each image map including an array of plurality of columns;
a means for sensing the rotational position of said support about the center of rotation and generating a signal;
a microcontroller attached to each of said plurality of light emitting elements, said microcontroller receives said signal and operates to select an image map and a column from said selected image map in accordance with said signal and configured to illuminate one or more of said light emitting elements in accordance with said selected image map, said selected column and said signal, thereby displaying said image as said support is rotated about the center of rotation so as to be viewed by humans;
a power source connected to and providing electrical power to said microcontroller; and
said microcontroller determines the rotational frequency of said support from said signal and using said rotational frequency determines the linear velocity of the object to which said support is attached, and wherein said image is of a speedometer which dynamically displays said linear velocity.
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Abstract
A rotational light emitting display apparatus is provided. The rotational light emitting apparatus device allows static and animated images and instruments to be displayed on dynamic screen. The display is refreshed repeatedly to take advantage of the persistence of vision property of the human eye. The illuminating element of the apparatus includes a plurality of light emitting elements arranged in a line. Display refreshing is accomplished by mounting the apparatus on a rotating object, so that the line of light emitting elements lies along a radial direction. In this way, each of the light emitting elements traverse a circular path, while being flashed on and off to produce the desired display.
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Citations
10 Claims
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1. A light emitting display apparatus for displaying a stationary or animated image on a rotating object, the light emitting display apparatus comprising:
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a support attachable to the rotating object so as to having the same center of rotation as the rotating object; a plurality of light emitting elements on said support and arranged in one or more generally parallel columns; one or more image maps of an image to be displayed, each image map including an array of plurality of columns; a means for sensing the rotational position of said support about the center of rotation and generating a signal; a microcontroller attached to each of said plurality of light emitting elements, said microcontroller receives said signal and operates to select an image map and a column from said selected image map in accordance with said signal and configured to illuminate one or more of said light emitting elements in accordance with said selected image map, said selected column and said signal, thereby displaying said image as said support is rotated about the center of rotation so as to be viewed by humans; a power source connected to and providing electrical power to said microcontroller; and said microcontroller determines the rotational frequency of said support from said signal and using said rotational frequency determines the linear velocity of the object to which said support is attached, and wherein said image is of a speedometer which dynamically displays said linear velocity. - View Dependent Claims (2, 3, 4)
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5. A light emitting display apparatus for displaying a stationary or animated image on a rotating object, the light emitting display apparatus comprising:
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a support attachable to the rotating object so as to having the same center of rotation as the rotating object; a plurality of light emitting elements on said support and arranged in one or more generally parallel columns; one or more image maps of an image to be displayed, each image map including an array of plurality of columns; a means for sensing the rotational position of said support about the center of rotation and generating a signal; a microcontroller attached to each of said plurality of light emitting elements, said microcontroller receives said signal and operates to select an image map and a column from said selected image map in accordance with said signal and configured to illuminate one or more of said light emitting elements in accordance with said selected image map, said selected column and said signal, thereby displaying said image as said support is rotated about the center of rotation so as to be viewed by humans; a power source connected to and providing electrical power to said microcontroller; and said microcontroller determines the rotational acceleration of said support from said signal and using said rotational acceleration determines the linear acceleration of the object to which said support is attached, and wherein said image is of an accelerometer which dynamically displays said linear acceleration. - View Dependent Claims (6, 7, 8)
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9. A light emitting display apparatus for displaying a stationary or animated image on a rotating object, the light emitting display apparatus comprising:
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a support attachable to the rotating object so as to having the same center of rotation as the rotating object; a plurality of light emitting elements on said support and arranged in one or more generally parallel columns; one or more image maps of an image to be displayed, each image map including an array of plurality of columns; a means for sensing the rotational position of said support about the center of rotation and generating a signal; a microcontroller attached to each of said plurality of light emitting elements, said microcontroller receives said signal and operates to select an image map and a column from said selected image map in accordance with said signal and configured to illuminate one or more of said light emitting elements in accordance with said selected image map, said selected column and said signal, thereby displaying said image as said support is rotated about the center of rotation so as to be viewed by humans; a power source connected to and providing electrical power to said microcontroller; and said object is a vehicle wheel and said microcontroller is encoded with the radius of the wheel and the vehicle mass to which the vehicle wheel is mounted, and further wherein said microcontroller determines the rotational acceleration of said support from said signal and using said rotational acceleration determines the linear acceleration of the wheel, and then using said linear acceleration determines the power of the vehicle using the said linear acceleration, the vehicle mass, and the radius of the wheel, and further wherein said image is of a vehicle instrumentation which dynamically displays the determined power of the vehicle. - View Dependent Claims (10)
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Specification