The present disclosure related generally to techniques for improving the performance and efficiency of display systems, such as laser scan beam display systems or other types of display systems (e.g., micro-displays). Display systems of the present disclosure may include a polarization compensation optic, such as a spatially varying polarizer, that provides phase retardation that varies as a function of position, which provides polarization compensation to provide light that is well suited for a polarization sensitive optic of the display system, such as a waveguide-based optical system, a pancake optical system, a birdbath optical system, a coating-based optical system, etc. The display systems of the present disclosure may be components of head-mounted display systems, or other types of display systems.

The present disclosure related generally to techniques for improving the performance and efficiency of display systems, such as laser scan beam display systems or other types of display systems (e.g., micro-displays). Display systems of the present disclosure may include a polarization compensation optic, such as a spatially varying polarizer, that provides phase retardation that varies as a function of position, which provides polarization compensation to provide light that is well suited for a polarization sensitive optic of the display system, such as a waveguide-based optical system, a pancake optical system, a birdbath optical system, a coating-based optical system, etc. The display systems of the present disclosure may be components of head-mounted display systems, or other types of display systems.

An augmented reality display system is configured to direct a plurality of parallactically-disparate intra-pupil images into a viewer's eye. The parallactically-disparate intra-pupil images provide different parallax views of a virtual object, and impinge on the pupil from different angles. In the aggregate, the wavefronts of light forming the images approximate a continuous divergent wavefront and provide selectable accommodation cues for the user, depending on the amount of parallax disparity between the intra-pupil images. The amount of parallax disparity is selected using a light source that outputs light for different images from different locations, with spatial differences in the locations of the light output providing differences in the paths that the light takes to the eye, which in turn provide different amounts of parallax disparity. Advantageously, the wavefront divergence, and the accommodation cue provided to the eye of the user, may be varied by appropriate selection of parallax disparity, which may be set by selecting the amount of spatial separation between the locations of light output.

An augmented reality display system is configured to direct a plurality of parallactically-disparate intra-pupil images into a viewer's eye. The parallactically-disparate intra-pupil images provide different parallax views of a virtual object, and impinge on the pupil from different angles. In the aggregate, the wavefronts of light forming the images approximate a continuous divergent wavefront and provide selectable accommodation cues for the user, depending on the amount of parallax disparity between the intra-pupil images. The amount of parallax disparity is selected using a light source that outputs light for different images from different locations, with spatial differences in the locations of the light output providing differences in the paths that the light takes to the eye, which in turn provide different amounts of parallax disparity. Advantageously, the wavefront divergence, and the accommodation cue provided to the eye of the user, may be varied by appropriate selection of parallax disparity, which may be set by selecting the amount of spatial separation between the locations of light output.

A near-eye display system comprising a image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.

A near-eye display system comprising a image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.

An apparatus and a method for image display include a projection screen, a projection device, a control unit, and an imaging element. The projection screen is movable back and forth along an axis perpendicular to the projection face under control from the control unit. The control unit is configured to divide an image to be projected into a set of sub-images depending on distances, of one or more objects in the image, to be perceived by a user along the axis, and to control the projection screen and the projection device such that the projection device projects the set of sub-images onto the projection face when the projection face is moving to different positions respectively. The imaging optical element is configured to form a virtual image of the respective sub-image when the projection face is moving to the corresponding position.

An apparatus and a method for image display include a projection screen, a projection device, a control unit, and an imaging element. The projection screen is movable back and forth along an axis perpendicular to the projection face under control from the control unit. The control unit is configured to divide an image to be projected into a set of sub-images depending on distances, of one or more objects in the image, to be perceived by a user along the axis, and to control the projection screen and the projection device such that the projection device projects the set of sub-images onto the projection face when the projection face is moving to different positions respectively. The imaging optical element is configured to form a virtual image of the respective sub-image when the projection face is moving to the corresponding position.

A 3D image pixel in a spatially multiplexed stereo 3D display includes a first left-eye subpixel and a second left-eye subpixel that are both driven when displaying the left-eye image. The 3D image pixel also includes a first right-eye subpixel and a second right-eye subpixel that are both driven when displaying the right-eye image. The subpixels may all have a square shape. Single color emitters in the subpixels of the same eye may be driven by the same electronics. A 3D image pixel in a second spatially multiplexed stereo 3D display includes a left-eye pixel driven when displaying the left-eye image and a right-eye pixel driven when displaying the right-eye image. The pixels may all have a rectangular shape, and the horizontal measurement of the pixels may be greater than the vertical measurement of the pixels.

An augmented reality display system is configured to direct a plurality of parallactically-disparate intra-pupil images into a viewer's eye. The parallactically-disparate intra-pupil images provide different parallax views of a virtual object, and impinge on the pupil from different angles. In the aggregate, the wavefronts of light forming the images approximate a continuous divergent wavefront and provide selectable accommodation cues for the user, depending on the amount of parallax disparity between the intra-pupil images. The amount of parallax disparity is selected using a light source that outputs light for different images from different locations, with spatial differences in the locations of the light output providing differences in the paths that the light takes to the eye, which in turn provide different amounts of parallax disparity. Advantageously, the wavefront divergence, and the accommodation cue provided to the eye of the user, may be varied by appropriate selection of parallax disparity, which may be set by selecting the amount of spatial separation between the locations of light output.