Abstract: A near-eye display apparatus is disclosed. The near-eye display apparatus includes a lens and an optical path folding assembly. The lens is configured to receive incident light of a first image, which is projected by a micro-display, and shape the first image; the lens includes a primary optical axis and a first lens face and a second lens face which are opposed in a first direction where the primary optical axis of the lens is positioned, a curvature radius of the first lens face is within a range of 70 to 100 millimeters, and a curvature radius of the second lens face is within a range of 10 to 30 millimeters; and the optical path folding assembly is configured to receive light of the first image shaped by the lens and fold an optical path from the lens to an exit pupil of the near-eye display apparatus.

Abstract: Aspects of the subject disclosure may include, for example, selecting a set of traffic counters, wherein the traffic counters provide a profile of viewing habits of a user, and wherein the traffic counters are extracted from video streaming by the user; predicting a size of a video buffer based on the traffic counters selected; and building the video buffer based on the predicted size. Other embodiments are disclosed.

Abstract: A near-eye display apparatus is disclosed. The near-eye display apparatus includes a lens and an optical path folding assembly. The lens is configured to receive incident light of a first image, which is projected by a micro-display, and shape the first image; the lens includes a primary optical axis and a first lens face and a second lens face which are opposed in a first direction where the primary optical axis of the lens is positioned, and both the first lens face and the second lens face are aspheric surfaces; and the optical path folding assembly is configured to receive light of the first image shaped by the lens and fold an optical path from the lens to an exit pupil of the near-eye display apparatus. By adopting the bi-aspherical lens, image quality of the near-eye display apparatus can be improved and the volume can be reduced.

Abstract: A display device and a display method are provided. The display device includes a first screen and a first reflector on a light emission side of the first screen; the first screen and the first reflector are in a first light path; the display device further includes a second screen and a second reflector on a light emission side of the second screen; the second screen and the second reflector are in a second light path; the first light path and the second light path converge in a first position.

Abstract: Aspects of the subject disclosure may include, for example, a method, including identifying recommended video clips for a user of a communication device according to a video viewing profile for the user and video subject matter information associated with a plurality of video clips, identifying an edge cloud server for facilitating network access by the communication device at a location, determining a reduced activity period for a data path between a video content server and the edge cloud server by comparing activity information for the data path and an activity threshold, directing the video content server to store the recommended video clips at the edge cloud server during the reduced activity period, and providing a listing of the recommended video clips to an application, where the communication device receives a video clip of the recommended video clips from the edge cloud server responsive to a selection of the video clip via the application. Other embodiments are disclosed.

Abstract: Aspects of the subject disclosure may include, for example, a device including a processing system including a processor and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, including monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.

Abstract: The present disclosure discloses an optical lens module and a virtual reality device. The optical lens module includes: a lens assembly, and transflective layers attached to surfaces on a light incident side and a light emitting side of the lens assembly. The lens assembly includes a central region and at least one annular region surrounding the central region. The central region has a refractive index smaller than the at least one annular region. When more than one annular region is provided, the annular regions are sequentially arranged layer by layer, the annular region located on the outermost side has the maximum refractive index, and for any other annular region, the refractive index is smaller than that of the annular region located outside thereof.

Abstract: A method and apparatus for optimizing a lens of a virtual reality device and a computer readable storage medium. The method for optimizing a lens of a virtual reality device includes setting an optimization objective and optimization variables for imaging with a lens; and performing optimization processing on the imaging of an object point through the lens by the optimization variables, and obtaining a lens parameter value by which the imaging result is in accordance with the optimization objective, an image surface of the imaging of the object point through the lens being an image surface on which the astigmatism is less than a preset threshold.

Abstract: The present disclosure provides an optical system and a near-eye display device. The optical system includes an optical waveguide and an eyepiece system. The eyepiece system is on a light incident side of the optical waveguide, and a light exit side of the eyepiece system is opposite to the light incident side of the optical waveguide so that light exited from the eyepiece system is incident on the optical waveguide. The eyepiece system includes a lens group which includes a first lens, a second lens and a third lens which are sequentially arranged in a direction parallel to the optical axis of the lens group; a side of the first lens away from the second lens is the light exit side of the eyepiece system, each of the first lens and the third lens has a positive focal power; and the second lens has a negative focal power.

Abstract: Aspects of the subject disclosure may include, for example, a method including monitoring a video session to determine key performance indicators for cross-layer interactions between a network providing video session video data and user equipment receiving the video session video data, wherein the key performance indicators include a transmission control protocol congestion window size that corresponds to a video chunk requested by the user equipment, and a radio access network throughput of a download of the video chunk requested by the user equipment, and determining a quality of service for the user equipment during the video session according to a residual length of content in a playback buffer for the user equipment based on the transmission control protocol congestion window size, and the radio access network throughput. Other embodiments are disclosed.

Abstract: An optical displaying system, a controlling method thereof, and a displaying device, which relates to the technical field of displaying.

Abstract: An image display processing method for a display device, an image display processing device, a display device, and a non-volatile storage medium are provided. The display device includes a backlight unit and a display panel, the backlight unit includes a plurality of backlight blocks and is driven by a local dimming mode, and the image display processing method includes: obtaining initial backlight data of each of the plurality of backlight blocks corresponding to a display image; performing a peak driving process on the initial backlight data of each of the plurality of backlight blocks by a graphics processing unit to obtain adjusted backlight data of each of the plurality of backlight blocks; and providing the adjusted backlight data to the backlight unit by the graphics processing unit so that the display panel displays the display image.

Abstract: A display device, a display method thereof, and a display system. The display device includes at least two display screens; and a light transmission portion, configured to transmit image light emitted by the at least two display screens to a predetermined region. The at least two display screens or the light transmission portion is configured to be movable, so that distances from image planes imaged by the at least two display screens through the light transmission portion to the predetermined region can be adjusted independently.

Abstract: Aspects of the subject disclosure may include, for example, a processing system that performs operations including collecting encrypted network traffic flow data from user interaction with an application, deriving a first set of traffic feature vectors from the encrypted network traffic flow data collected, training a machine learning algorithm on the first set of traffic feature vectors to classify each traffic feature vector in the first set of traffic feature vectors as associated with a type of the application or not associated with the type of the application, and classifying whether an encrypted network traffic flow as the type of the application by applying the machine learning algorithm to a traffic feature vector of the encrypted network traffic flow. Other embodiments are disclosed.

Abstract: A display device includes a base substrate, a display panel, and a moveable structure located between the base substrate and the display panel, fixedly connected to the display panel and slidably connected to the base substrate; the display panel includes pixel areas and non-pixel areas between the pixel areas; in displaying phase, the moveable structure is configured to control the display panel to perform reciprocating motion with a preset cycle, the distance that the display panel moves in a single direction in the preset cycle is smaller than or equal to the width of a non-pixel area in the single direction, the preset cycle is the time required for the display panel to perform reciprocating motion once, and the time that the display panel moves in the single direction in the preset cycle is equal to the time that an image of the display panel is refreshed once.

Abstract: A biodegradable solid aqueous electrolyte composition, an electrochemical device incorporating the electrolyte composition, and methods for the same are provided. The electrolyte composition may include a hydrogel of a copolymer and a salt dispersed in the hydrogel. The copolymer may include at least two polycaprolactone chains attached to a polymeric center block. The electrochemical device may include an anode, a cathode, and the electrolyte composition disposed between the anode and the cathode. The electrolyte composition may include a crosslinked, biodegradable polymeric material that is radiatively curable prior to being crosslinked.

Abstract: Aspects of the subject disclosure may include, for example, a device including a processing system including a processor and a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, including monitoring network traffic to determine a transmission control protocol traffic pattern, determining a target video rate from the transmission control protocol traffic pattern, and modifying an over-the-top video delivery service network according to the target video rate. Other embodiments are disclosed.

Abstract: An AR optical system includes a depth-of-field separation structure corresponding to an image source, configured to convert light rays emitted from the image source into a plurality of light beams with different depths of field; a convergent lens located on an emergent light path of the depth-of-field separation structure, and configured to receive and shape the plurality of light beams with different depths of field; a first semi-transmitting semi-reflecting mirror located on a side, away from the depth-of-field separation structure, of the convergent lens, and configured to reflect the plurality of shaped light beams with different depths of field towards a set direction; a concave mirror having a preset transmission-reflection ratio configured to reflect and converge the plurality of light beams with different depths of field and then make the light beam incident to a set observation position after passing through the first semi-transmitting semi-reflecting mirror.

Abstract: A display device includes: an optical waveguide (15) comprising an optical waveguide body (151) and a light outputting section (152) disposed on the optical waveguide body (151); M lens assemblies (13, 14) disposed adjacent to an end of the optical waveguide body (151), wherein at least two lens assemblies (13, 14) of the M lens assemblies (13, 14) have different focal lengths, and M is a natural number greater than one; and M display screens (11, 12) corresponding to the M lens assemblies (13, 14) in one-to-one correspondence, each of the M display screens (11, 12) configured to emit light with image information through a corresponding lens assembly (13, 14) to the optical waveguide body (151) for transmission; wherein the light outputting section (152) is configured to output the light from the M display screens (11, 12) out of the optical waveguide body (151) for imaging, the light from the M display screens (11, 12) form M images, respectively, and at least two images of the M images have different image

Abstract: An image rendering method for a computer product coupled to a display apparatus may include rendering an entire display region of the display apparatus with a first rendering mode to generate a first rendering mode sample image, determining a target region in the entire display region, rendering the target region with a second rendering mode to generate a second rendering mode sample image, and transmitting data of the first rendering mode sample image and the second rendering mode sample image. The second rendering mode comprises at least a value of an image rendering feature that is higher than that of the first rendering mode.