Abstract: A near-eye display comprises a display panel (e.g., a liquid crystal display (LCD) panel, an organic light emitting diode (OLED) display panel, or a light emitting diode (LED) display panel) configured to generate a display image, display optics configured to project the display image to a user, and an color filter or an electrically switchable layer on or near the display optics. The transmission spectra of the color filter match the light emission spectra of the display panel such that the color filter may transmit display light while blocking light outside of the passbands. The electrically switchable layer can be turned on to transmit display light and can be turned off to block ambient light.

Abstract: A near-eye display includes a display configured to display images, a memory device storing a compensation profile for compensating perceived brightness nonuniformity (e.g., brightness roll-off) of the display, and a display controller for controlling operations of the display. The compensation profile includes compensation values for modifying brightness in regions of the display to compensate the perceived brightness nonuniformity. The display controller is configured to control brightness of the display based on the compensation profile.

Abstract: A liquid crystal display (LCD) of a near-eye display includes a first substrate, a second substrate, a plurality of photo spacers formed on the second substrate, a plurality of sub-spacers formed on the first substrate, and a liquid crystal material in regions between the first substrate and the second substrate. Each sub-spacer of the plurality of sub-spacers is configured to support a corresponding photo spacer of the plurality of photo spacers. A resolution of the LCD is greater than 800 pixels per inch. Each photo spacer of the plurality of photo spacers has a smaller lateral size and a larger height than the corresponding sub-spacer of the plurality of photo spacers.

Abstract: A near-eye display includes a display configured to display images, a memory device storing a compensation profile for compensating perceived brightness nonuniformity (e.g., brightness roll-off) of the display, and a display controller for controlling operations of the display. The compensation profile includes compensation values for modifying brightness in regions of the display to compensate the perceived brightness nonuniformity. The display controller is configured to control brightness of the display based on the compensation profile.

Abstract: Disclosed herein are various near-eye display architectures, including kaleidoscopic waveguide display architectures, geometrical waveguide displays with improved pupil replication density, liquid crystal displays with improved brightness uniformity, tiled display panels for field of view expansion, and display modules including over-molded frame with integrated heat sink fins.

Abstract: A display device improves illumination uniformity and form factor for a backlight unit (BLU). The display device includes a display area having pixels and a BLU at a back side of the display area. The BLU is configured to direct light to the pixels. The BLU includes a diffusion plate with a top side, a bottom side, and a right side connecting the top side and the bottom side, and a left side at an opposite side of the right side and connecting the top side and the bottom side. The BLU includes light sources located at one or more of the left and right sides of the diffusion plate to emit light into the diffusion plate. The left and right sides may include slanted portions connecting center portions of the left and right sides to the top and bottom sides. Light sources may be located at the slanted portions.

Abstract: A display includes pixels arranged across a display area and a backlight unit (BLU) that directs light to the pixels. The BLU includes a light source that emits light and a planar waveguide that receives the light. The planar waveguide includes diffusion structures that direct light out of the waveguide and toward the pixels. A density of the diffusion structures at a first area (e.g., a periphery area) of the planar waveguide is higher than a density of the diffusion structures at a second area (e.g., a center area) of the planar waveguide. The second area is closer to the center of the planar waveguide than the first area. This results in an intensity of light emitted from the first area being higher than an intensity of light emitted from the second area. Thus, a user may observe an image with uniform brightness, even if the viewing angle is large.

Abstract: Embodiments of the present disclosure relate to a display assembly with color calibration for improving accuracy of displayed colors under thermal shifts. A data processing circuit of the display assembly determines color compensation coefficients corresponding to an operating temperature of a display panel, each color compensation coefficient accounting for a thermal shift of a respective color component at the operating temperature. The data processing circuit applies the color compensation coefficients to color transform elements corresponding to an initial temperature to determine a corrected version of the color transform elements corresponding to the operating temperature.

Abstract: A display device includes a plurality of pixels arranged across a display area of a display device, and a black matrix configured to block a portion of light outputted by each pixel of the plurality of pixels. The black matrix is configured to allow light from the second pixel having a first output intensity distribution having a peak intensity corresponding to a first direction to pass through, and to allow light from the first pixel having a second output intensity distribution having a peak intensity corresponding to a second direction to pass through.

Abstract: A display device includes a plurality of pixels arranged across a display area of a display device, and a black matrix configured to block a portion of light outputted by each pixel of the plurality of pixels. The black matrix is configured to allow light from the second pixel having a first output intensity distribution having a peak intensity corresponding to a first direction to pass through, and to allow light from the first pixel having a second output intensity distribution having a peak intensity corresponding to a second direction to pass through.

Abstract: A display backlight includes an illumination layer and an optical layer. The illumination layer includes a two-dimensional array of light sources, which generate illumination light. An image of the illumination light is captured and analyzed for light uniformity. In response to the analysis of the illumination light, ink patterns are printed on the optical layer of a display backlight to increase light uniformity of the illumination light.

Abstract: A backlight unit may be used to produce backlight illumination for a display. The backlight unit may have a row of light-emitting diodes that are mounted on a flexible printed circuit and that emit light into a light guide layer. The backlight unit may include a chassis that extends around the periphery of the light guide layer. The chassis may have a first portion that is mounted on the flexible printed circuit adjacent to the light-emitting diodes and a second portion that extends over the light-emitting diodes. A heat spreading layer may be attached to a reflector layer and the flexible printed circuit. The heat spreading layer may have a width that is less than the width of the reflector layer. Adhesive patches may attach the light guide layer to the flexible printed circuit. A patterned adhesive layer may be formed over the light-emitting diodes and the light guide layer.