The purpose of the present technology is to provide a video projection device capable of obtaining a satisfactory video (image) while achieving reduction in power consumption and reduction in size of the device. Provided is a video projection device including at least: a monolithic semiconductor laser array including multiple light emitting units, each of which emits a laser light beam; an optical waveguide that guides the laser light beam in a predetermined direction; a mirror that scans the laser light beam in two axes; and a diffractive element that diffracts the laser light beam in a specific direction in front of an eye and projects the laser light beam on a retina. The multiple light emitting units are respectively optically coupled to different input ports among multiple input ports included in the optical waveguide.

A method of presenting visual information on a screen (306) involves defining a boundary (314) delineating a first region of the screen (which may be towards a centre of the screen) from a second region of the screen (which may be towards a periphery of the screen), displaying a first portion of the visual information in the first region of the screen at a first display quality, and displaying a second portion of the visual information in the second region of the screen at a second, lower, display quality. The method further involves blurring the visual information for display in at least a portion of the second region. The location of the boundary (314) may change over time, and may be based on where a user is looking, or is expected to be looking, or on the type of information being displayed or based on other parameters.

The present disclosure relates to methods and devices for graphics processing including an apparatus, e.g., a GPU. The apparatus may process at least one frame including frame content associated with a grid including a plurality of grid sections, each of a plurality of portions of the frame content being aligned with at least a portion of at least one of the plurality of grid sections. The apparatus may also shift the frame content with respect to the grid, such that at least one portion of the plurality of portions of the frame content is aligned with at least a portion of at least one distinct grid section of the plurality of grid sections. Additionally, the apparatus may store the shifted frame content including the at least one portion of the frame content that is aligned with at least a portion of the at least one distinct grid section.

An augmented reality display system includes a first beam path for a foveal inset image on a holographic optical element, a second beam path for a peripheral display image on the holographic optical element, and pupil position tracking logic that generates control signals to set a position of the foveal inset as perceived through the holographic optical element, to determine the peripheral display image, and to control a moveable stage.

A display device includes: a display unit including a plurality of display panels which displays images of different colors, a lens unit on the display unit, an optical path controller on the lens unit, where the optical path controller generates a composite image by superimposing the images displayed by the plurality of display panels with each other, and an output unit through which the composite image is displayed. The optical path controller controls optical paths of light incident on a first surface of the optical path controller facing the lens unit and light incident on a second surface of the optical path controller, which is opposite to the first surface, and provides the composite image to the output unit.

An optical subsystem for use in a display system or an imaging system comprises a plurality of reflective surfaces collectively arranged to provide variable control of device-internal path lengths of light coming to an imaging sensor or traveling a path to an eye of a viewer. The optical subsystem can be used to provide multiple images concurrently at different apparent depths as perceived by the user.

A device includes a light guide and an in-coupling element coupled with the light guide and configured to couple an input image light into the light guide. The device also includes an out-coupling element coupled with the light guide and configured to couple the input image light out of the light guide as an output image light, and a controller configured to control at least one of the in-coupling element or the out-coupling element during a first time period and a second time period. The out-coupling element outputs a first output image light having a first field of view (“FOV”) during the first time period, and a second output image light having a second FOV during the second time period. The first FOV substantially overlaps with the second FOV, and an axis of symmetry of the first FOV is rotated relative to an axis of symmetry of the second FOV.

Systems and methods relating to displaying images are disclosed. In one embodiment, sensor data is received via one or more sensors of a wearable head device comprising a display, the sensor data indicative of a surrounding environment of a user of the wearable head device. An image can be determined based on the sensor data, the image corresponding to the surrounding environment. A visibility of a first portion of the image corresponding to a first portion of the surrounding environment can be enhanced. Enhancing a visibility of a second portion of the image corresponding to a second portion of the surrounding environment can be forgone. The enhanced first portion of the image and a view of the second portion of the surrounding environment can be presented concurrently via the display of the wearable head device.

A display apparatus comprises a mirror assembly, a first mirror of the mirror assembly oscillating about a first axis upon excitation by a first excitation signal and the first or a second mirror of the mirror assembly oscillating about a second axis upon excitation by a second excitation signal, a light source projecting a light beam onto the mirror assembly for deflection by the mirror assembly towards an image area, the light source being controlled according to pixels of image frames, a gaze tracker detecting a user's region of interest, ROI, within the image area, and a controller modulating one of the excitation signals by a first modulation signal which is dependent on the ROI detected by the gaze tracker.

A display apparatus comprises a mirror oscillating about a first axis upon excitation by a first excitation signal and about a second axis upon excitation by a second excitation signal, a light source projecting a light beam onto the mirror for deflection towards an image plane, the light source being controller according to pixels read-out by an image processor from a buffer, a gaze tracker detecting a user’s region of interest, ROI, within the image plane, and a controller modulating one of the excitation signals by a modulation signal which is dependent on the ROI such that the number of passes of the light beam per unit area is higher in the ROI than in a region outside thereof, wherein the number of pixels read-out per unit area by the image processor is higher in the ROI than in a region outside of the ROI.