Wirelessly powered display and system
A wirelessly powered display comprises a substrate, an antenna with multiple turns disposed on the substrate, an electronic circuit disposed on the substrate, and one or more pixels each having one or more inorganic light-emitting diodes disposed on the substrate. The electronic circuit is electrically connected to the one or more inorganic LEDs and the antenna, the antenna is responsive to electromagnetic energy to provide electrical power, and the electronic circuit includes a power converter that converts a signal with a relatively high current and low voltage to a signal with a relatively high voltage and low current. A wirelessly coupled display system includes a device including a wireless power transmitter that provides wireless power within a specified range and one or more wirelessly powered displays located within the range and responsive to the wireless power provided by the device to display an image.
1. A wirelessly powered display, comprising:
a substrate;
an antenna with multiple turns disposed on the substrate;
an electronic circuit disposed on the substrate; and
one or more pixels each having one or more inorganic light-emitting diodes disposed on the substrate; wherein:
the electronic circuit is electrically connected to the one or more inorganic LEDs and the antenna;
the antenna is responsive to electromagnetic energy from a device comprising a wireless power transmitter within a specified range to provide electrical power to the wirelessly powered display; and
the electronic circuit comprises a power converter that converts a signal with a relatively high current and low voltage to a signal with a relatively high voltage and low current.
2. The wirelessly powered display of claim 1 , wherein the display has multiple pixels.
3. The wirelessly powered display of claim 1 , wherein the display is a sticker.
4. The wirelessly powered display of claim 1 , wherein the display has a fixed image.
5. The wirelessly powered display of claim 1 , wherein the display comprises an acoustic wave filter, a surface acoustic wave filter, or a bulk acoustic wave filter.
6. The wirelessly powered display of claim 1 , wherein the display excludes a battery, internal power source, or wired power source and the display operates solely on the electrical power provided through the antenna.
7. The wirelessly powered display of claim 1 , wherein the display has a single pixel.
8. A wirelessly coupled display system, comprising:
a device comprising a wireless power transmitter that provides wireless power within a specified range; and
one or more wirelessly powered displays located within the specified range and responsive to the wireless power provided by the device to display an image, wherein each wirelessly powered display comprises:
a substrate;
an antenna with multiple turns disposed on the substrate;
an electronic circuit disposed on the substrate; and
one or more pixels each having one or more inorganic light-emitting diodes disposed on the substrate; wherein:
the electronic circuit is electrically connected to the one or more inorganic LEDs and the antenna;
the antenna is responsive to electromagnetic energy from the device to provide electrical power; and
the electronic circuit comprises a power converter that converts a signal with a relatively high current and low voltage to a signal with a relatively high voltage and low current.
9. The wirelessly coupled display system of claim 8 , wherein the device is a portable device or a mobile device, the display is in a fixed location, or the display is mobile or affixed to a mobile device or portable device.
10. The wirelessly powered display of claim 8 , wherein the display is mounted on the device.
11. The wirelessly powered display of claim 8 , wherein the one or more displays are physically separate from the device.
12. The wirelessly coupled display system of claim 8 , wherein the wireless power transmitter is a near-field communication device.
13. The wirelessly coupled display system of claim 8 , wherein the device is a mobile telephone or a smart phone.
14. The wirelessly coupled display system of claim 8 , wherein:
the device comprises a stored image and an image transmitter circuit that wirelessly provides the stored image to the display; and
the display is responsive to the wirelessly provided image to display the image.
15. The wirelessly coupled display system of claim 8 , wherein the display comprises a display controller.
16. The wirelessly coupled display system of claim 8 , wherein the device comprises a primary device display and the display is a secondary display mounted on or incorporated into the device.
17. The wirelessly coupled display system of claim 8 , wherein:
each display has an identification and a circuit for responding to the identification when the identification is transmitted; and
the device comprises a transmitter circuit that wirelessly provides one or more of the identifications to the one or more displays.
18. A wirelessly powered display, comprising:
a substrate; and
a plurality of light-emitting modules disposed on the substrate, each light-emitting module having an antenna with multiple turns disposed on the substrate, an electronic circuit disposed on the substrate, and one or more pixels each having one or more inorganic light-emitting diodes disposed on the substrate; wherein, for each light-emitting module, the electronic circuit is electrically connected to the one or more inorganic LEDs and the antenna, the antenna is responsive to electromagnetic energy from a device comprising a wireless power transmitter within a specified range to provide electrical power to the wirelessly powered display, and the electronic circuit comprises a power converter that converts a signal with a relatively high current and low voltage to a signal with a relatively high voltage and low current.
19. A wirelessly coupled display system, comprising:
a device comprising a wireless power transmitter that provides wireless power within a specified range; and
a wirelessly powered display located within the specified range and responsive to the wireless power provided by the device to display an image, wherein the wirelessly powered display comprises:
a substrate; and
a plurality of light-emitting modules disposed on the substrate, each light-emitting module having an antenna with multiple turns disposed on the substrate, an electronic circuit disposed on the substrate, and one or more pixels each having one or more inorganic light-emitting diodes disposed on the substrate; wherein, for each light-emitting module, the electronic circuit is electrically connected to the one or more inorganic LEDs and the antenna, the antenna is responsive to electromagnetic energy from the device to provide electrical power, and the electronic circuit comprises a power converter that converts a signal with a relatively high current and low voltage to a signal with a relatively high voltage and low current.