Abstract: A drive system includes a motor and a gearbox. A three-bearing architecture is used to constrain a rotor shaft of the motor and a gear shaft of the gearbox. A first bearing interfacing with the gear shaft, a second bearing interfacing to the rotor shaft, and a central bearing are arranged between the first and second bearings. The central bearing includes a first race section configured to interface with the gear shaft and a second race section for interfacing to the rotor shaft. The first race section and the second race section are separate from each other and may be axially proximate to each other. The gear shaft includes a first section configured to interface with an inner race of the central bearing, and a second section configured to interface with the rotor shaft. The first and second sections are separate and may include the same pitch circle diameter.

Abstract: A stator for an electric machine is disclosed. The stator has a plurality of pins arranged in slots in the stator on concentric circles at different distances from a center point, each concentric circle forming a layer. Each of six pins in different layers are connected to one another in series and form a winding. A first pin of the winding in a first slot in the 6n-4 layer, n being a natural number, a second pin of the winding in a second slot in the 6n-5 layer, a third pin of the winding in the first slot in the 6n-2 layer, a fourth pin of the winding in the second slot in the 6n-3 layer, a fifth pin in the first slot in the 6n layer, and a sixth pin of the winding in the second slot in the 6n-1 layer.

Abstract: Embodiments of a curved display assembly are disclosed. The assembly includes a glass sheet having first and second major surfaces. The second major surface defines a first curvature of the glass sheet, and the first curvature has a bend axis. The assembly also includes a curved display having a second thickness between first and second display surfaces. The display has a display region and two overhanging edges adjacent to the display region and parallel to the bend axis. A first adhesive bonds the second display surface to the second major surface in the display region. A second adhesive is disposed between each of the two overhanging edges and the second major surface. The second adhesive has a higher elastic modulus than the first adhesive. The overhanging edges each extend a distance outside of the display area that is at least three times the second thickness of the curved display.

Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.

Abstract: A varifocal liquid lens includes a body filled with two different fluids separated by an interface of a variable curvature across a clear aperture of the varifocal liquid lens. At least one of the first or second fluids is birefringent, such that a refractive index difference between the first and second fluids and resulting optical power of the varifocal liquid lens is dependent on polarization of impinging light. At a first light polarization, the first and second fluids may be matched in refractive index, while at a second, orthogonal light polarization, the first and second fluids may be mismatched in refractive index, whereby the first interface between the first and second fluids may have a variable, non-zero optical power for the second polarization while having a substantially non-variable, zero optical power for the first polarization of light.

Abstract: A plurality of plate-like magnets are positioned in a radial direction and an axial direction and are arranged at a predetermined interval to an inner circumferential surface of a rotor yoke, and a first adhesive is cured, thus forming each partition part that partitions the plate-like magnets from each other and partially bonding the plate-like magnets at a first bonding part, and a second adhesive is cured, thus bonding and fixing the plate-like magnets at a second bonding part while the plurality of plate-like magnets are partitioned from each other at a predetermined interval in a circumferential direction by the partition part.

Abstract: A display device includes a substrate and a first common electrode layer, a pixel electrode layer and a second common electrode layer which are stacked on the substrate in turn; wherein an orthographic projection of the first common electrode layer on the substrate is at least partially overlapped with an orthographic projection of the pixel electrode layer on the substrate, and a first storage capacitor is formed on an overlapping portion of the first common electrode layer and the pixel electrode layer; an orthographic projection of the second common electrode layer on the substrate is at least partially overlapped with the orthographic projection of the pixel electrode layer on the substrate, and a second storage capacitor is formed on an overlapping portion of the second common electrode layer and the pixel electrode layer.

Abstract: A display device comprising a spatial light modulator having a display polariser arranged on one side of the spatial light modulator is provided with an additional polariser arranged on the same side as the display polariser and polar control retarders between the additional polariser and the display polariser. The polar control retarders include a liquid crystal retarder having two surface alignment layers disposed adjacent to a layer of liquid crystal material on opposite sides. The surface alignment layers provide alignment in the adjacent liquid crystal material with an in-plane component, wherein the angle of said in-plane component changes monotonically along a predetermined axis across the display device, providing reduction of luminance in directions that are offset from a viewing axis, increasing uniformity in the reduction of luminance in directions that are offset from a viewing axis.

Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems including diffraction grating(s), and methods of fabricating same. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers include liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.

Abstract: Various embodiments of the teachings herein include an electric motor. In some embodiments, the motor includes: a stator; and a moving component comprising an iron-based soft-magnetic structural material including crystallites of a ferromagnetic iron-based alloy separated by grain boundaries, wherein there is interlayer-free contact between the crystallites at grain boundaries. The structural material comprises ceramic fibers. A content of the ceramic fibers is between 0.2% and 10% by volume. An aspect ratio of the ceramic fibers is less than 0.1.

Abstract: An optical element includes a three-dimensional structure having a curved surface; and a retardation plate bent along the curved surface. The retardation plate includes a transparent substrate and a liquid crystal layer formed over the transparent substrate. The retardation plate has a slow axis and a fast axis. A glass-transition temperature, Tgne, in a slow axis direction of the retardation plate is higher than a glass-transition temperature, Tgno, in a fast axis direction of the retardation plate.

Abstract: The present disclosure provides a display panel, including: a first panel and a second panel opposite to the first panel; the first panel includes: gate lines extending along a first direction and data lines extending along a second direction, and the gate lines and the data lines intersect to define pixel regions; the second panel includes: a plurality of support column periodic units arranged in an array along the first direction and the second direction, each support column periodic unit includes a plurality of support columns, and at least a part of the support columns each satisfy: a connection line between the support column and a support column closest thereto extends along a third direction, and an included angle between the third direction and the first direction is not equal to 0°. The present disclosure further provides a display device.

Abstract: A display device is provided. A liquid crystal display panel has a first display area and a second display area. When the display device displays, a brightness of the first display area is lower than a brightness of the second display area. The liquid crystal display panel includes a pixel electrode, a common electrode, and an insulating layer disposed between the pixel electrode and the common electrode. A thickness of at least part of the insulating layer in the first display area is greater than a thickness of at least part of the insulating layer in the second display area.

Abstract: A powertrain, a coolant flow rate estimation method, and an electric vehicle are provided. Coolant in a first cooling loop of the powertrain is configured to cool an inverter. An electronic pump drives the coolant to circulate in the first cooling loop. When a phase current of a motor is greater than or equal to a preset current value, a controller determines a rotation speed of the electronic pump at a first moment as a first rotation speed, and determines a coolant flow rate at the first moment based on a temperature at a first position in the first cooling loop, a temperature at a second position in the inverter, and a power loss of the inverter. In the solution of this application, data does not need to be separately calibrated for different thermal management systems. This reduces time consumed by data calibration and improves practicability.

Abstract: An electronic device includes a display panel and a viewing angle control unit disposed opposite to the display panel. The viewing angle control unit includes a first substrate; a second substrate disposed opposite to the first substrate; and a plurality of protrusions disposed between the first substrate and the second substrate, wherein a transmittance of the plurality of protrusions is between about 0.006% and about 1.6%.

Abstract: The invention relates to a housing (1), in particular for an electric drive system for a vehicle, wherein the housing (1) is configured as a system housing and is provided for receiving a plurality of system components, and wherein the housing (1) has a housing wall (11) which is produced by way of a casting mould, and a plurality of interfaces for connecting the housing (1) to components which are situated outside or inside the housing (1) are provided in or on the housing wall (11). Furthermore, the invention relates to the use of a housing (1) as a system housing for an electric drive axle of a motor vehicle.

Abstract: The present application discloses a pixel unit of a display panel, a lower substrate of a display panel, and a display panel. The present application by disposing a transparent shielding electrode element connected to a common signal line and extending into the aperture region and making an orthogonal projection of the transparent shielding electrode element on a plane where the common signal line is located at least partially overlap the common signal line, extends a shielding effect provided by the common signal line such that a parasitic capacitor between the pixel electrode and the data line is lowered.

Abstract: A color film substrate, a fabrication method therefor, and a display device. The color film substrate comprises a base substrate (1); a black matrix (2) is located on one side of the base substrate (1), the black matrix (2) having a plurality of pixel openings (21); a quantum dot color film layer (31, 32, 33) is located in the pixel openings (21) and comprises an ultraviolet light-curable quantum dot material; and a light conversion structure (4), which is located between a side wall of the black matrix (2) and a side wall of the quantum dot color film layer (31, 32, 33). When a quantum dot solution is UV cured, the light conversion structure (4) may convert ultraviolet light of 395 nm into ultraviolet light that has a shorter wavelength and higher energy.

Abstract: The present invention provides a display panel and a display device. The display panel includes a substrate, sub-pixels, and shared common electrode lines. The sub-pixels are arranged in an array on the substrate, and each sub-pixel includes thin-film transistors. The shared common electrode lines are arranged at intervals on the substrate, and electrically connected to the thin-film transistors. An orthographic projection of each shared common electrode line on the substrate partially overlaps with an orthographic projection of a thin-film transistor on the substrate.

Abstract: A display device includes a pixel layer disposed on a base substrate, a first inorganic insulating layer disposed on the pixel layer, a first switch electrode disposed on the first inorganic insulating layer, a liquid crystal layer disposed on the first inorganic insulating layer and the first switch electrode, a second inorganic insulating layer disposed on the liquid crystal layer, and a second switch electrode disposed on the second inorganic insulating layer to face the first switch electrode. The liquid crystal layer converts light emitted from the pixel layer into about 90 degree linearly polarized light by an electric field formed between the first switch electrode and the second switch electrode in the private mode.