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: 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 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: 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: 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: 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.

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: Various embodiments are disclosed that relate to display panel backlight systems that output light with a narrower angular intensity distribution than a diffuse backlight. For example, one disclosed embodiment provides a backlight system comprising a wedge-shaped light guide comprising a thin end and a thick end, the thick end of the wedge-shaped light guide comprising a linear reflector with plurality of facets, and wherein the backlight system also comprises a plurality of light sources arranged along the thin end of the wedge-shaped light guide.

Abstract: Embodiments are disclosed that relate to operating a display illuminated by a backlight system configured to selectively emit light having two or more angular intensity profiles. For example, one disclosed embodiment provides a method comprising illuminating the display with light having a first angular intensity profile, while illuminating the display with light having the first angular intensity profile, outputting an image, after outputting the image, illuminating the display with light having a second angular intensity profile different than the first angular intensity profile, and while illuminating the display with light having the second angular intensity profile, outputting an inverse image of the image.

Abstract: Embodiments are disclosed that relate to fabrication of a laminated optical wedge. One embodiment provides a method comprising inserting a wedge blank into a vacuum molding tool, applying a vacuum to the vacuum molding tool, and removing a layer from a top surface of the wedge blank to expose a machined surface of the wedge blank. The method further comprises laminating a finish piece to the machined surface via an adhesive, wherein the finish piece comprises a smoother surface than the machined surface, and curing the adhesive to form a finished optical wedge. The method further comprises removing the finished optical wedge from the vacuum molding tool.

Abstract: A method of enhancing input imaging resolution includes sequentially blocking light from different portions of an object with a series of resolution-enhancing patterns displayed between the object and an image detector. The method further includes detecting light filtered by the series of resolution-enhancing patterns and integrating light detected while different resolution-enhancing patterns of the series of resolution-enhancing patterns are displayed between the object and the detector.

Abstract: A transmission optic having a transparent sheet with opposing front and back faces and an end face adjacent the front and back faces. The separation between the back face and a nearest point on the front face varies as a conic function of distance along the front face from that point to the end face.

Abstract: Various embodiments are disclosed relating to fabrication of an optical wedge. For example, one embodiment provides a method for manufacturing an optical wedge comprising inserting a wedge blank into a vacuum molding tool and applying a vacuum to the vacuum molding tool to temporarily hold the wedge blank against a molding surface of the vacuum molding tool. The method further comprises removing a layer from a top surface of the wedge blank to expose a machined surface of the wedge blank, and casting a finish layer on the machined surface to form a finish layer of a finished optical wedge.

Abstract: An integrated vision and display system comprises a display-image forming layer configured to transmit a display image for viewing through a display surface; an imaging detector configured to image infrared light of a narrow range of angles relative to the display surface normal and including a reflection from one or more objects on or near the display surface; a vision-system emitter configured to emit the infrared light for illuminating the objects; a visible- and infrared-transmissive light guide having opposing upper and/or lower face, configured to receive the infrared light from the vision-system emitter, to conduct the infrared light via TIR from the upper and lower faces, and to project the infrared light onto the objects outside of the narrow range of angles relative to the display surface normal.