Image display apparatus
AssigneeFrontline Display International Limited
InventorsCarl Michael Blissett, Philip Morgan Griffiths, Matthew Englefield
Life of this patent
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Abstract
An image display apparatus comprising a rotatable member carrying an array of light emitting devices; a drive for rotating the member, and a control for selectively energizing each of the light emitting devices in a predetermined sequence as the member rotates so as to present a visible image. The image display device is incorporated in a fan cooling unit having a plurality of blades, the rotatable member being one of the blades of the fan cooling unit. The fan cooling unit includes a sensing arrangement responsive to rotation of the blades, for triggering the control for the energization of the light emitting devices in dependence on the speed of rotation of the blades.
Claims5
Image display apparatus comprising:
- a rotatable member carrying an array of light emitting devices;
- a drive for rotating said member;
- and a control for selectively energizing each of said devices in a predetermined sequence as said member rotates so as to present a visible image, the apparatus being incorporated in a fan cooling unit having a plurality of blades, said member being one of the blades of the fan cooling unit;
- and the fan cooling unit includes a sensing arrangement responsive to rotation of said blades, said sensing arrangement triggering said control for the energization of said devices in dependence on the speed of rotation of the blades.
Dependencies are inferred from the claim text.