Display device
AssigneeLitelogic IP Limited
InventorsJames Sirmon, Anthony Cole
Life of this patent
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Abstract
Image display apparatus comprising two or more arrays of light sources is described. Each array is rotatable around a common axis, and the light sources in each array are arranged so that each light source traverses along a unique path around the common axis. A controller is adapted to modulate the intensity of light emitted by each light source as it traverses its respective unique path such that the light sources in combination cause a desired image to be visible to an observer by virtue of persistence of vision.
Claims31
A display system comprising a plurality of image display devices, each image display device comprising;
- at least two arrays of light sources, each array having a plurality of light sources and rotatable around a common axis, the light sources in each array configured so that each light source traverses along a unique path around the common axis;
- and
- a controller configured to modulate the intensity of light emitted by each light source as it traverses its respective unique path such that the light sources in combination cause a desired image to be visible to an observer by virtue of persistence of vision, wherein the arrays of the plurality of image display devices are configured to rotate around the common axes in synchrony such that the desired images caused to be visible by each display device together form a composite image.
Image display apparatus comprising two or more arrays of light sources, each array being rotatable around a common axis, the light sources in each array being arranged so that each light source traverses along a unique path around the common axis, whereby the paths traversed by the light sources of each array are interlaced;
- and a controller adapted to modulate the intensity of light emitted by each light source as it traverses its respective unique path such that the light sources in combination cause a desired image to be visible to an observer by virtue of persistence of vision, wherein each array of light sources is mounted on a respective printed circuit board (PCB), wherein each PCB is mounted on a rotatable shaft that is co-axial with the common axis, wherein for each display device the rotatable shaft has a central bore through which image data is transmitted to the controller from an external data source via a visible light or infrared link comprising a transmitter disposed at one end of the bore and a corresponding receiver connected to the controller and disposed within the bore at a position distal from the transmitter.
Image display apparatus comprising two or more arrays of light sources, each array being rotatable around a common axis, the light sources in each array being arranged so that each light source traverses along a unique path around the common axis, whereby the paths traversed by the light sources of each array are interlaced;
- and a controller adapted to modulate the intensity of light emitted by each light source as it traverses its respective unique path such that the light sources in combination cause a desired image to be visible to an observer by virtue of persistence of vision, further comprising at least one radially movable balancing weight, a vibration sensor and a balance controller adapted to vary the radial distance of the balancing weight from the common axis in response to a signal received from the vibration sensor.
Dependencies are inferred from the claim text.