An embodiment of the present disclosure provides a three-dimensional display apparatus, including: a pixel structure formed by a plurality of sub-pixels, a three-dimensional grating formed by a plurality of strip gratings arranged along a row direction; wherein, the respective sub-pixels in each row of sub-pixels are aligned, the respective sub-pixels in every two adjacent rows of sub-pixels are staggered by a half width of the sub-pixel, in the row direction, and each sub-pixel is different in color from the respective sub-pixels adjacent thereto; the respective strip gratings have a same extension direction and have a certain inclination angle with respect to the row direction; and each strip grating corresponds to at least two sub-pixels, which display different viewpoint images, in each row of sub-pixels.

A head-mounted display apparatus includes: a first body including a front face having a vision hole and a rear face formed in the shape of a diving mask to cover up a user's nose and eyes; a first external body extending forward from the rear face of the first body to the front face of the first body and being spaced apart from a side surface of the first body and surrounding the side of the first body; a second body including a front face opened and a rear face having a lens mounting hole to which with a lens fixed; and a second external body extending rearward from the front face of the second body to the rear face of the second body and being spaced apart from a side surface of the second body.

Light control films are provided that confine light transmitted therethrough to be within a 360 view region and block light outside of this view region. The light control films can provide security in all directions including right-and-left and up-and-down of the films, without compromising light transmittance compared to one-dimensional light control films. The light control films include an array of light transmissive, tapered posts and absorptive regions disposed between the posts.

A system that includes a wearable device, and a method of using the system, including: receiving, at a first transceiver element of a wearable device, a target beam from a ride-share vehicle, the element having a first axis of reception; and when the first axis is oriented toward the beam, providing an indication, via the device, to a user thereof.

An apparatus and method for real-time audio processing employs a gaze detection sensor to detect a direction of a user's gaze and output a gaze signal corresponding to the detected direction of the user's gaze. A digital signal processing unit responds to a plurality of signals corresponding to a plurality of sounds received at the apparatus, and the determined direction of gaze to identify a signal of interest from the plurality of signals using the gaze signal. The signal of interest is processed for output to the user. In embodiments, a microphone array provides the plurality of signals. An imaging sensor may work with either the microphone array or the gaze detection sensor to identify the signal of interest.

Provided is a lenticular display including a lenticular lens including a plurality of columnar convex lenses that each have a semicylindrical surface and are arrayed in parallel and a lenticular image disposed on an opposite side of the convex lenses from the semicylindrical surface. The lenticular image includes an image strip group in which a plurality of image strips for displaying a plurality of display images respectively are arranged in positions for causing the image strips to be displayed through the plurality of convex lenses respectively in a state where a longitudinal direction of the image strips is parallel to a longitudinal direction of the plurality of convex lenses, and in the image strip groups, and a total width of image strips for displaying at least one display image among the plurality of display images is larger than a total width of image strips for displaying another display image.

A hand-held emergency vision device includes a hand-held emergency vision device having an enclosed tubular housing with a first end and a second end. The enclosed tubular housing has an expanded shape memory form. First and second clear members are provided at the first and second ends, respectively; and the tubular housing is compressible to an unexpanded compact form. The housing is releasably held in its compact form, and is self-expandable to its expanded shape memory form when released from its compact form.

A head mounted display (HMD) including a lens of optics configured for viewing virtual reality (VR) content. The HMD includes a display screen disposed behind the lens of optics such that the lens of optics is between the display screen and an eye of a user when the HMD is worn by the user, wherein the display screen is configured for rendering the VR content. The HMD includes a support structure configured to fit around a head of the user when worn, wherein the lens of optics and display screen is disposed within the support structure such that the display screen is located in front of the eye when the HMD is worn. The HMD includes a heating component disposed in the support structure, wherein the heating component is controllable to provide heat in response to an environmental cue in the VR content displayed on the display screen.

A driving method of a privacy apparatus is provided. The privacy apparatus includes a light-transmissive layer and a plurality of electrically switchable optical structures. The light-transmissive layer includes a plurality of trenches not crossing over each other. The electrically switchable optical structures are respectively disposed in the trenches. The driving method of the privacy apparatus includes applying a driving electric field to a part of the trenches to render a part of the electrically switchable optical structures light-transmissive, and maintaining the other part of the electrically switchable optical structures opaque. Besides, a privacy apparatus and a manufacturing method thereof are also provided.

A general purpose image and visual effects display apparatus, with associated methods, which is comprised of an array of independently angled reflective or refractive elements wherein the varying angle pattern of each element across said array is designed to reflect or refract specifically designed as well as fortuitously located existing colors, in precisely determined patterns, to make apparent to specific viewing or receiving locations a wide range of complex emergent visual and other effects. In some embodiments very high resolution and high color fidelity image display is possible. In other embodiments moving images akin to video can be displayed, using no electronics or moving parts. In other embodiments true binocular 3D images can be displayed directly to viewers, without the need for special 3D viewing glasses. Many of the embodiments and methods are applicable to non-visible light and other reflectable wave-based phenomena.