Electronic paper display device
First Claim
Patent Images
1. A display device comprising:
- an electronic paper display with a housing;
a processor configured to drive the electronic paper display;
one or more conductive contacts on the housing of the electronic paper display configured to establish a contact-based connection with reciprocal conductive contacts on a housing of an external device wherein the one or more conductive contacts comprise a plurality of ferromagnetic elements;
a digital data and power bus configured to receive pixel data for the electronic paper display and external power for the electronic paper display, wherein the received pixel data corresponds to content selected by an external device;
wherein the electronic paper display is configured to display the selected content upon receiving the external power via the digital data and power bus through the contact-based connection established between the one or more conductive contacts on the housing of the electronic paper display being in contact with the reciprocal conductive contacts on the housing of the external device.
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Abstract
A display device is described that comprises an electronic paper display but that does not include a power source that is capable of providing sufficient power to update the electronic paper display. Instead, the electronic paper display can only be updated when receiving external power via a digital data and power bus. The bus also provides pixel data for content to be displayed on the electronic paper display and at least one externally generated bias voltage level for the electronic paper display. The display device further comprises a processor that configured to drive the electronic paper display.
51 Citations
20 Claims
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1. A display device comprising:
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an electronic paper display with a housing; a processor configured to drive the electronic paper display; one or more conductive contacts on the housing of the electronic paper display configured to establish a contact-based connection with reciprocal conductive contacts on a housing of an external device wherein the one or more conductive contacts comprise a plurality of ferromagnetic elements; a digital data and power bus configured to receive pixel data for the electronic paper display and external power for the electronic paper display, wherein the received pixel data corresponds to content selected by an external device; wherein the electronic paper display is configured to display the selected content upon receiving the external power via the digital data and power bus through the contact-based connection established between the one or more conductive contacts on the housing of the electronic paper display being in contact with the reciprocal conductive contacts on the housing of the external device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A device comprising:
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a plurality of conductive contacts on a computing device, the plurality of conductive contacts being configured to mate with other conductive contacts of a display device comprising an electronic paper display, wherein the plurality of conductive contacts comprise a plurality of ferromagnetic elements; a power manager configured to supply at least one bias voltage level from the computing device to the display device upon detection of contact between the plurality of conductive contacts on the computing device contacting the other conductive contacts on the display device, the at least one bias voltage level causing the display device to identify the electronic paper display to the computing device through the other conductive contacts and the plurality of conductive contacts; and a processor configured to select content for the identified electronic paper display and provide pixel data corresponding to the selected content for the electronic paper display through the other conductive contacts and the plurality of conductive contacts. - View Dependent Claims (18)
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19. A method of operating a display device comprising an electronic paper display, a digital data and power bus, and a processor configured to drive the electronic paper display, the method comprising:
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providing an external computing device with a device identifier that is unique to the electronic paper display; receiving, through a contact-based connection between ferromagnetic elements on the housings of the display device and the external device, externally generated pixel data for content selected by the external computing device based on the provided device identifier in the processor via the digital data and power bus; receiving, through the contact-based connection, at least one externally generated bias voltage level for the electronic paper display via the digital data and power bus; and driving the electronic paper display to update an image displayed on the electronic paper display using the pixel data selected based on the provided device identifier and the externally received power via the digital data and power bus. - View Dependent Claims (20)
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Specification