Abstract: The present disclosure relates identifying an intended viewer and an unintended viewer of a liquid crystal display (LCD) using face recognition technology. Once identified the system may determine a face position for the unintended viewer. The system may modulate the voltage applied at a third electrode on the color filter layer of the LCD to achieve a certain off-axis contrast that may reduce the unintended viewer's visibility of the LCD without restricting the visibility of the intended viewer. Ultimately, the present disclosure provides enhanced privacy options for the intended viewer with a lightweight, inexpensive, and highly transportable system.

Abstract: A display includes a display modulation layer, a backlight unit configured to generate light for illumination of the display modulation layer, and a filter film disposed between the backlight unit and the display modulation layer. The filter film includes a plurality of Bragg grating sets. Each Bragg grating set is configured to reflect the light in a wavelength-selective and angular-selective manner rearward toward the backlight unit.

Abstract: Methods, systems and computer program products are provided for a logo camera. Camera thickness may be reduced using multiple lenses and sensors. A fixed or variable color icon may provide a function, notice or privacy warning, convey information, and/or serve decorative and/or other purposes. Color filters may be fixed or variable. A color icon may be created, for example, by controlling the colors of display pixels aligned with optical paths of camera lens and sensor arrays. Colors in an icon may provide color filters corresponding to an array of lenses that focus color-separated light on one or more camera sensors. Sensors may be optimized for particular colors. Color-separated images may be combined into a single image. Lens and camera sensor arrays may be compatible with multiple logos or other icon images. Cameras behind fixed or variable color icons may be concealed, for example, using shutters or semi-reflective layers.

Abstract: A display includes a substrate, an array of organic light emitting diode (OLED) structures supported by the substrate, and a filter extending across the array of OLED structures. The filter is positioned relative to the array of OLED structures such that light emitted by each OLED structure of the array of OLED structures is directed toward the filter. The filter is configured to reflect a portion of the light having a respective wavelength and propagating at a respective off-axis angle back toward the array of OLED structures to reduce an amount of the light having the respective wavelength emitted by the display at the off-axis angle.

Abstract: Examples are disclosed that relate to backlit electronic displays that may help to avoid apparent non-uniform image brightness across a displayed image. One example provides an electronic display comprising a light guide, an image-forming layer, and a light-steering layer. The light guide is configured to release light over a display area. The image-forming layer is configured to form a display image by modulating the light released by the light guide. The light-steering layer is configured to steer together the light released from a peripheral region of the light guide and the light released from a central region of the light guide.

Abstract: A display includes a substrate, an array of organic light emitting diode (OLED) structures supported by the substrate, and a filter extending across the array of OLED structures. The filter is positioned relative to the array of OLED structures such that light emitted by each OLED structure of the array of OLED structures is directed toward the filter. The filter is configured to reflect a portion of the light having a respective wavelength and propagating at a respective off-axis angle back toward the array of OLED structures to reduce an amount of the light having the respective wavelength emitted by the display at the off-axis angle.

Abstract: A backlight unit includes a light guide layer including a plurality of extraction features disposed along a rear face of the light guide layer, a first cladding layer adhesively secured to the rear face of the light guide layer, a plurality of turning structures disposed along the first cladding layer, and a second cladding layer adhesively secured to a front face of the light guide layer. The first cladding layer has a first refractive index lower than a guide refractive index of the light guide layer. The second cladding layer has a second refractive index lower than or equal to the first refractive index.

Abstract: A reflective multi-layer structure forms an external surface of an electronic device and includes a light-emitting display separated from the external surface by a dielectric polarizing film and a diffuser. Light emitted by the light-emitting display is transmitted sequentially through the dielectric polarizing film and the diffuser to present information on the external surface.

Abstract: A reflective multi-layer structure forms an external surface of an electronic device and includes a light-emitting display separated from the external surface by a dielectric polarizing film and a diffuser. Light emitted by the light-emitting display is transmitted sequentially through the dielectric polarizing film and the diffuser to present information on the external surface.

Abstract: Ring button devices and systems are disclosed herein. In one example, an electronic stylus is provided. The stylus includes a shaft, a circuit positioned within the shaft, a ring button positioned around an axis of the shaft, and a ring button sensor positioned within the shaft and connected to the circuit. The ring button is configured to contact the ring button sensor to activate a function of the stylus or a function of an electronic device in communication with the stylus.

Abstract: Examples are disclosed that relate to backlit electronic displays that may help to avoid apparent non-uniform image brightness across a displayed image. One example provides an electronic display comprising a light guide, an image-forming layer, and a light-steering layer. The light guide is configured to release light over a display area. The image-forming layer is configured to form a display image by modulating the light released by the light guide. The light-steering layer is configured to steer together the light released from a peripheral region of the light guide and the light released from a central region of the light guide.

Abstract: The described implementations relate to enhancement images, such as in videoconferencing scenarios. One system includes a poriferous display screen having generally opposing front and back surfaces. This system also includes a camera positioned proximate to the back surface to capture an image through the poriferous display screen.

Abstract: A display includes a display modulation layer, a backlight unit configured to generate light for illumination of the display modulation layer, and a filter film disposed between the backlight unit and the display modulation layer. The filter film includes a plurality of Bragg grating sets. Each Bragg grating set is configured to reflect the light in a wavelength-selective and angular-selective manner rearward toward the backlight unit.

Abstract: An electronic device includes an external display layer, a shell disposed opposite the external display layer, a display module component enclosed by the external display layer and the shell, and an internal support that structurally supports the display module component and the external display layer. The internal support includes a plate disposed between the external display layer and the shell.

Abstract: A touch screen panel comprises an outer surface that defines a touch sensitive surface with a touch sensitive area. The outer surface comprises friction features distributed throughout at least a portion of the touch sensitive area according to one or more predetermined spacings. The friction features are configured to have predetermined friction characteristics that impart a desired tactile effect, e.g., a paper-like feel, to the touch sensitive surface when contacted by a user's finger or a stylus. Methods of forming a touch screen panel with predetermined friction features are also described.

Abstract: Interactive sensing in retro-reflective imaging systems may be enabled through auto-alignment of an infrared (IR) illumination region with a floating image region by transmitting IR light, added on or within a display, through the same optical path as the visible floating image light. The IR illumination at the display may be either a flood of light or structured light. In some implementations, stereo vision based imaging techniques may be employed in conjunction with an auto-aligned IR floating image to provide illumination for a stereo imaging system and to provide position sensing for interaction.

Abstract: Ring button devices and systems are disclosed herein. In one example, an electronic stylus is provided. The stylus includes a shaft, a circuit positioned within the shaft, a ring button positioned around an axis of the shaft, and a ring button sensor positioned within the shaft and connected to the circuit. The ring button is configured to contact the ring button sensor to activate a function of the stylus or a function of an electronic device in communication with the stylus.

Abstract: Embodiments are disclosed that relate to hover detection in interactive display devices. One embodiment provides an interactive display device comprising a display panel configured to display an image on an interactive surface, an imaging optical wedge disposed adjacent to the display panel, an image sensor configured to capture an image of an object located in front of the interactive surface and spaced from the interactive surface by capturing the image through the imaging optical wedge, a logic subsystem, and a data-holding subsystem comprising instructions executable by the logic subsystem to operate the display panel and the image sensor, and to detect a hover input based upon one or more images received from the image sensor.

Abstract: A backlight unit includes a light guide layer including a plurality of extraction features disposed along a rear face of the light guide layer, a first cladding layer adhesively secured to the rear face of the light guide layer, a plurality of turning structures disposed along the first cladding layer, and a second cladding layer adhesively secured to a front face of the light guide layer. The first cladding layer has a first refractive index lower than a guide refractive index of the light guide layer. The second cladding layer has a second refractive index lower than or equal to the first refractive index.

Abstract: An electronic device includes an external display layer, a shell disposed opposite the external display layer, a display module component enclosed by the external display layer and the shell, and an internal support that structurally supports the display module component and the external display layer. The internal support includes a plate disposed between the external display layer and the shell.