Abstract:
A display controller (306) for a display may include a frame rate circuit (308) to change a frame rate of the display from a first frame rate to a second frame rate, and a reference voltage circuit (310) to adjust a reference voltage of the display from a first reference voltage corresponding to the first frame rate to a second reference voltage corresponding to the second frame rate. The display may be a thin film transistor liquid crystal display. The reference voltage may correspond to a common voltage (Vcom) for the display.
Abstract:
Systems, apparatuses, and/or methods may provide for identifying a face of a user by extracting contour information from images of shadows cast on the face by a facial features illuminated by a controllable source of illumination. The source of illumination may be left, center, and right portions of the light emitting diode (LED) display on a smart phone, tablet, or notebook that has a forward-facing two-dimensional (2D) camera for obtaining the images. In one embodiment, the user is successively photographed under illumination provided using the left, the center, and the right portions of the LED display, providing shadows on the face from which identifying contour information may be extracted and/or determined.
Abstract:
Disclosed herein are techniques related to privacy and touch at display devices. The techniques include an apparatus having a touch sensitive electroactive privacy layer of a display device. The touch sensitive electroactive privacy layer is configured to restrict a propagation direction of light emission associated with a display layer of the display device and to register or a touch event. The restriction of propagation is generated by micro louvers formed between privacy layer electrodes in the touch sensitive electroactive privacy layer while the registration of the touch event is detected by mutual capacitance between a touch electrode and one of the privacy layer electrodes.
Abstract:
An electronic device (400) for manufacturing a touch sensor is described. The electronic device (400) includes a printer (418) to print a first pattern and a second pattern on a first side of a first substrate (202). The first pattern is parallel to movement of a print head (206). The first pattern and the second pattern are perpendicular to each other. The electronic device (400) also includes a rotator (420) to rotate the first substrate (202) so that the printer (418) is to print the second pattern parallel to the movement of the print head (206).
Abstract:
Apparatus and/or methods may provide a substrate and a sensor pattern formed on the substrate based on a visibility level for a touch sensor application. The sensor pattern may include a specified inter-pattern spacing and a specified pattern width to provide the visibility level. For example, the specified inter-pattern spacing may be between about 1 μm and about 60 μm and the specified pattern width may be between about 1 μm and about 250 μm to provide the visibility level for a touch screen sensor application. The sensor pattern may be included in a periodical repeat of sensor patterns. The sensor pattern may include silver nanowire networks, and may not to be observable by visual inspection.