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US 2014/0111408 A1Published application
LEDoS PROJECTION SYSTEM
AssigneeThe Hong Kong University of Science and Technology
InventorsKei May Lau, Zhao Jun Liu, Chik Yue
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Abstract
Image projection utilizing light-emitting diodes on a silicon (LEDoS) substrate is described herein. LEDoS devices selectively activate LED pixels to produce light. Light can excite color conversion materials of the LEDoS devices to form color images. Images can be projected onto a projection surface.
Claims34
A device, comprising:
- a light-emitting diode (LED) display on a substrate comprising LED pixels located on a surface of the substrate;
- a lens that, in response to receiving light generate by the LED display, projects the light;
- and
- a controller, coupled to the LED display on the substrate, that controls respective states of the LED pixels.
1 more element
A method, comprising:
- altering, by a device, states of light-emitting diode (LED) pixels disposed on a substrate between a first state defined as an on state and a second state defined as an off state;
- and
- based on the altering of the states, initiating generation of an image.
A device, comprising:
- a plurality of substrates each having respective arrays of light-emitting diodes (LEDs);
- and
- a processor, coupled to the first plurality of LEDs and the second plurality of LEDs, that is configured to selectively apply a charge to the plurality of LEDs.
Dependencies are inferred from the claim text.