Abstract: A display comprises a plurality of autonomous pixels on a stretchable substrate. Each autonomous pixel comprises a display element and a control element arranged to sense an external stimulus and to generate, entirely within the autonomous pixel, a control signal to drive the display element based, at least in part, on a magnitude of the sensed external stimulus. The stretchable substrate comprises a plurality of less elastic regions separated by stretchable areas, where the less elastic regions are less stretchable than the surrounding stretchable areas and each control element of an autonomous pixel is located in or on a less elastic region of the stretchable substrate.

Abstract: A display comprises a plurality of autonomous pixels on a stretchable substrate. Each autonomous pixel comprises a display element and a control element arranged to sense an external stimulus and to generate, entirely within the autonomous pixel, a control signal to drive the display element based, at least in part, on a magnitude of the sensed external stimulus. The stretchable substrate comprises a plurality of less elastic regions separated by stretchable areas, where the less elastic regions are less stretchable than the surrounding stretchable areas and each control element of an autonomous pixel is located in or on a less elastic region of the stretchable substrate.

Abstract: An autonomous pixel comprises a display element, a plurality of different sensors and a control element. The sensors are arranged to detect one or more external stimuli and the control element is arranged to generate, entirely within the autonomous pixel, a control signal to drive the display element based, at least in part, on a magnitude of an external stimulus detected by one or more of the different sensors.

Abstract: A display comprises a plurality of autonomous pixels on a substrate. Each autonomous pixel comprises a display element, a sensing element and a control element. The sensing element is arranged to detect an external stimulus and the control element is arranged to generate, entirely within the autonomous pixel, a control signal to drive the display element based, at least in part, on a magnitude of the external stimulus detected by the sensing element. Additionally, the control element comprises one or more groups of transistors, each group comprising two or more transistors arranged to perform the same function and connected in parallel with each other.

Abstract: A display device is described which can be updated by applying pressure with a passive object. The display device comprises a transparent top conductor layer, a middle conductor layer and a bottom conductor layer. The middle conductor layer is segmented into a plurality of independent areas and a pixel of the display device is defined based at least in part on the way that the middle conductor layer is segmented. The display device further comprises an electrophoretic ink layer between the top and middle conductor layers, a layer of piezo-electric material between the middle and bottom conductor layers, and an electrical connection between the bottom and top conductor layers.

Abstract: A computing device comprises an electronic paper display, a processor and a memory. The memory is arranged to store platform software and application software for at least one application that is not adapted to work with an electronic paper display. The platform software comprises a UI conversion module comprising device-executable instructions, which when executed by the processor, cause the processor to: access a UI element tree for the application; generate a modified UI element tree for the application by removing and/or re-styling at least one UI element; and render data from the application using the modified UI element tree for display on the electronic paper display.

Abstract: A device, which may be a peripheral device or a host computing device, comprises a communication interface, a memory and a processor. The processor is arranged to detect imminent disconnection of a communication link between the peripheral device and the host computing device and in response to detecting the imminent disconnection of the communication link, to trigger a data transfer from the host computing device to the peripheral device via the communication interface. The data transfer defines, at least in part, a fixed output data set which, after disconnection, is output via an output device in the peripheral device.

Abstract: A system is described which comprises an input arranged to receive attention tracking data from attention tracking hardware. The attention tracking data, along with parameters associated with each display change request, is then used to select a display change request from a plurality of stored display change requests received from a plurality of different applications and a change defined by the selected display change request is then rendered in a GUI on a display device.

Abstract: A display device which includes an electronic paper display additionally comprises power harvesting hardware and display update hardware which is configured to control the updating of the electronic paper display based on a sensed power harvesting level which may, in various embodiments, be a current incoming power level as generated by the power harvesting hardware or a stored power level in a power storage device within the display device.

Abstract: A display device has both an emissive display and an electronic paper display. The electronic paper display is used for rendering visually static user input controls and a portion of the emissive display which is close to the electronic paper display is used for rendering visually dynamic user input controls. Also described are covers for an emissive display device, the covers comprising an electronic paper display device, and an emissive display device.

Abstract: Gestural annotation is described, for example where sensors such as touch screens and/or cameras monitor document annotation events made by a user of a document reading and/or writing application. In various examples the document annotation events comprise gestures recognized from the sensor data by a gesture recognition component. For example, the gestures may be in-air gestures or touch screen gestures. In examples, a compressed record of the sensor data is computed using at least the recognized gestures, document state and timestamps. In some examples the compressed record of the sensor data is used to facilitate consumption of the annotation events in relation to the document by a second user. In some examples the sensor data comprises touch sensor data representing electronic ink; and in some examples the sensor data comprises audio data capturing speech of a user.

Abstract: An electronic paper display device comprises a layer of multi-stable material and one or more electrodes on one face of the layer of multi-stable material. Each electrode is electrically contactable on its underside through the layer of multi-stable material so that all electrodes in the electronic paper display device are electrically contactable on a single face of the electronic paper display device.

Abstract: A method of fabricating a display comprising a plurality of autonomous pixels is described. Each autonomous pixel comprises a display element and a control element. The control element is configured to sense an external stimulus and to generate, entirely within the autonomous pixel, a control signal to drive the display element based, at least in part, on the magnitude of the sensed external stimulus.

Abstract: A display comprising a plurality of autonomous pixels is described. Each autonomous pixel comprises a display element and a control element. The control element is configured to sense an external stimulus and to generate, entirely within the autonomous pixel, a control signal to drive the display element based, at least in part, on the magnitude of the sensed external stimulus.

Abstract: A system provides a content service arranged to provide content for display on a display device which comprises an electronic paper display but which does not include a power source which is capable of providing sufficient power to update the electronic paper display. Instead, power is only provided to update the electronic paper display when in direct contact with a printer device. The power is provided via a contact based conductive digital data and power bus which also provides pixel data for content to be displayed on the electronic paper display. The display device further comprises a processing element which configured to drive the electronic paper display. The content service receives an identifier for a display device or printer device and identifies content based on the identifier received. The identified content is then transmitted to a printer device for display on a display device.

Abstract: A computer implemented method of processing content for display on an electronic paper display comprises generating both an image representing a piece of content stored in a content store and a token providing access to the piece of content in the content store. The image and the token are then transmitted to a display device comprising the electronic paper display directly or via one or more intermediary devices.

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.

Abstract: A display device is described which comprises an electronic paper display, a transmitter, a digital data and power bus and a processor. The transmitter is configured to transmit data identifying content currently displayed on the electronic paper display. The digital data and power bus is arranged to receive pixel data for modified content associated with the transmitted data and the processor is configured to drive the electronic paper display; however, the electronic paper display can only be updated to display modified content when the display device is receiving power via the digital data and power bus.

Abstract: A display device comprises an electronic paper display, a security module, an input for receiving content for display on the electronic paper display and a processing element. The security module is arranged to store and/or generate a value that is periodically updated and to communicate the value to a proximate device. A proposed update to the displayed content is accompanied by a further value which is verified by the security module or by a remote content service before updating the content displayed on the electronic paper display.

Abstract: Speckle sensing for motion tracking is described, for example, to track a user's finger or head in an environment to control a graphical user interface, to track a hand-held device, to track digits of a hand for gesture-based control, and to track 3D motion of other objects or parts of objects in a real-world environment. In various examples a stream of images of a speckle pattern from at least one coherent light source illuminating the object, or which is generated by a light source at the object to be tracked, is used to compute an estimate of 3D position of the object. In various examples the estimate is transformed using information about position and/or orientation of the object from another source. In various examples the other source is a time of flight system, a structured light system, a stereo system, a sensor at the object, or other sources.