An instrument for measuring polarized light 3D images and a manufacturing method thereof comprises an image sensor, a liquid crystal cell, and a polarizing plate. The polarizing plate comprises at least four quadrants and is disposed on top of the image sensor. When the polarization state of light is sensed, the image sensor captures and calculates four detection parameters to determine Stokes parameters S.sub.0˜S.sub.3, S.sub.0=I (0°, 0°)+I (90°, 0°), S.sub.1=I (0°, 0°), −I (90°,0°), S.sub.2=2.Math.I (45°, 0°)−S.sub.0, S.sub.3=2.Math.I (45°, π/2)−S.sub.0.

Systems and methods for providing a polarization recycling structure for use in applications, such as display systems that include a liquid crystal display assembly. The polarization recycling structure may include a first spatially varying polarizer spaced apart from a second spatially varying polarizer. The first spatially varying polarizer may include a lens array that receives light from a light source and focuses light of a first polarization state and passes light of a second polarization state. The second spatially varying polarizer receive light from the first spatially varying polarizer, passes the focused light of the first polarization state, and transforms the light of the second polarization state into the first polarization state, thereby providing only light of the first polarization state at the output of the polarization recycling structure. The polarization recycling structures improve the efficiency of lighting subsystems, thereby reducing power consumption, cost, space requirements, and providing other advantages.

Provided are a display device and a control method thereof. The polarizer is disposed on a light-emitting side of the display panel, and the imaging module is disposed on a non-light-emitting side of the display panel. The display panel includes a first display region, and in a direction perpendicular to the polarizer, the polarizer covers the first display region and the imaging module at least partially overlaps the first display region. The polarizer includes a polarized state and an unpolarized state, and a light transmittance of the polarizer in the unpolarized state is greater than a light transmittance in the polarized state. The first reaction light emitting unit emits a first reaction light to the first display region. The polarizer includes a light sensitive structure, and the light sensitive structure adjusts the polarizer from the polarized state to the unpolarized state under the action of the first reaction light.

The present disclosure relates generally to techniques for improving the performance and efficiency of optical systems, such as optical systems for using head-mounted display system. The optical systems of the present disclosure may include polarized catadioptric optics, or “pancake optics,” which utilize a wire grid polarizer as a reflective polarizer. Wire grid polarizers may not perform uniformly over wavelength or over varying angles of incidence. To improve performance, a spatially varying polarizer is provided in the optical system that operates to provide polarization compensation for the wire grid polarizer so that the wire grid polarizer performs more uniformly over wavelength and/or over incidence angles (e.g., on-axis and off-axis). The spatially varying polarizer may be formed of a liquid crystal material, such as a multi-twist retarder.

Systems and methods for providing a display for an electronic device that includes a liquid crystal display panel assembly, a backlight assembly that includes a light source, and a spatially varying polarizer that provides phase retardation that varies as a function of propagation length away from the light source. The display may also include a linear polarizer and other optical components that improve the efficiency of the backlight assembly, thereby reducing power consumption, cost, space requirements, and provide other advantages.

A geometric phase optical element and a three-dimensional display apparatus including the same are provided. The geometric phase optical element includes: a liquid crystal layer; a first electrode on a surface of the liquid crystal layer; and a second electrode on another surface of the liquid crystal layer, wherein, when no voltage is applied to the first and second electrodes, the liquid crystal layer is configured such that a phase difference according to an arrangement of the liquid crystal is π and light transmitted through the liquid crystal layer is diffracted by a first deflection angle, and when a first voltage that causes the phase difference according to the arrangement of the liquid crystal to become π/2 is applied to the first and second electrodes, the liquid crystal layer is configured such that the light transmitted through the liquid crystal layer is diffracted by a second deflection angle.

The present disclosure relates to a mask film used for manufacturing a polarizing plate having a locally bleached area, and a polarizing plate manufactured using the same.

A liquid crystal projection layer for use in a glass, the glass including a first glass which includes a first surface and a second surface opposite to each other, the liquid crystal projection layer includes a transparent projection layer disposed on a side of the first glass close to the second surface and configured to display a projected image received from a projector; and a liquid crystal module disposed between the first glass and the transparent projection layer and configured to be switchable between a transparent mode and a privacy mode, wherein in the transparent mode, the liquid crystal module allows the projected image displayed on the transparent projection layer to be transmitted towards the first glass, and in the privacy mode, the liquid crystal module prevents the projected image displayed on the transparent projection layer from being transmitted towards the first glass.

A method for manufacturing a liquid crystal panel includes irradiating a film of a photo-alignment film material formed on a surface of a substrate with light emitted from a light source and polarized by polarizers, the polarized light irradiation being performed while the substrate and/or the light source is moved, each of the polarizers including a polarized light transmissive region and a light-shielding region that surrounds the polarized light transmissive region, the polarized light transmissive region including end portions where the width of the polarized light transmissive region in a Y direction decreases toward the ends in an X direction, the polarizers being coupled with each other such that at least one end portion of each polarized light transmissive region is superimposed on an end portion of an adjacent polarized light transmissive region as viewed in the Y direction, wherein the X direction and the Y direction are perpendicular to each other in a plane parallel to the main surfaces of the polarizers, and the Y direction is a moving direction of the substrate relative to the light source.

An electro-optical device includes a transmission polarization axis conversion unit having a first surface and a second surface, an absorption polarization unit having transmission polarization axis in a first direction and having absorption polarization axis in a second direction, and a reflective polarization unit including a region having a transmission polarization axis in the first direction and a reflective polarization axis in the second direction, and an opening. The transmission polarization axis conversion unit can switch a first/second state, the first state is an incident light entering the first surface from the absorption polarization unit is converted into a first outgoing light of linearly polarized light in the second direction, and the first outgoing light is emitted from the second surface, the second state is the incident light converted into a second outgoing light of linearly polarized light in the first direction and emitted from the second surface.