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US 7,273,309 B2Granted
Display device comprising a luminous element with an emission characteristic of controllable solid angle
AssigneeSiemens Aktiengesellschaft
InventorsGary Ford, Juergen Wolf
Life of this patent
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Abstract
The invention relates to a display device including a luminous element and a light guide which has coupling locations and decoupling locations and transports a light signal that is emitted by the luminous element. The inventive luminous element has a radiation characteristic, the solid angle of which can be controlled.
Claims11
A display device comprising:
- a luminous element comprising a light emitting semiconductor device and a thermal element coupled to the semiconductor device, wherein the thermal element is configured to control a temperature of the semiconductor device to control an emission characteristic of the luminous element;
- and
- a light guide having incoupling and outcoupling locations, the light guide arranged to transport a light signal emerging from the luminous element.
Dependencies are inferred from the claim text.