A polarizing component and a display panel are provided in embodiments of the disclosure, the polarizing component comprising: a first polarizer on a light-incident side thereof, and configured to polarize a light incident thereon into a first linearly polarized light; a wave plate layer on a surface of the first polarizer facing away from the light-incident side; and a second polarizer on a surface of the wave plate layer facing away from the light-incident side, on a light-emergent side opposite to the light-incident side, and configured to polarize a light incident thereon into a second linearly polarized light; the wave plate layer comprises a phase delay portion configured to delay a phase of the first linearly polarized light incident thereon in a direction different from a direction of an optical axis of the phase delay portion such that a polarized light exiting the phase delay portion comprises a first polarized light in a first polarization direction and a second polarized light in a second polarization direction, without incurring any phase delay of the first linearly polarized light incident on the phase delay portion in a direction consistent with the direction of the optical axis of the phase delay portion.

Provided is an optical element which significantly reduces arrangement space, has superior durability, and also enables increased costs to be curbed. Functions of a polarizer and a phase difference compensation element are integrated. Specifically, the optical element has a transparent substrate, and a polarizer on one side of the transparent substrate, and has a phase difference compensation element on a side of the transparent substrate opposite from the polarizer.

Provided is an optical element which significantly reduces arrangement space, has superior durability, and also enables increased costs to be curbed. Functions of a polarizer and a phase difference compensation element are integrated. Specifically, the optical element has a transparent substrate, and a polarizer on one side of the transparent substrate, and has a phase difference compensation element on a side of the transparent substrate opposite from the polarizer.

Stereoscopic 3D systems include a conversion system having a polarization beam-splitting element to separate a randomly polarized incident image-beam into one transmitted image-beam and at least one reflected image-beam, first and second polarization modulators arranged to modulate states of the transmitted and reflected image-beams between first and second output linear polarization states, the modulators including first and second pi-cell liquid crystal elements aligned in mutually crossed orientation and switched between first and second optical-states, one of the optical-states having in-plane optical retardation corresponding to a quarter-wave plate (QWP), an additional QWP proximate to one of the pi-cell liquid crystal elements and perpendicularly aligned to the optical axis for the in-plane optical retardation for one of the pi-cell liquid crystal elements. Passive linear polarized viewing-glasses include first and second lenses, each having a mutually parallel linear polarizer, and a half-wave plate located proximate the input surface for one of the lenses.

Stereoscopic 3D systems include a conversion system having a polarization beam-splitting element to separate a randomly polarized incident image-beam into one transmitted image-beam and at least one reflected image-beam, first and second polarization modulators arranged to modulate states of the transmitted and reflected image-beams between first and second output linear polarization states, the modulators including first and second pi-cell liquid crystal elements aligned in mutually crossed orientation and switched between first and second optical-states, one of the optical-states having in-plane optical retardation corresponding to a quarter-wave plate (QWP), an additional QWP proximate to one of the pi-cell liquid crystal elements and perpendicularly aligned to the optical axis for the in-plane optical retardation for one of the pi-cell liquid crystal elements. Passive linear polarized viewing-glasses include first and second lenses, each having a mutually parallel linear polarizer, and a half-wave plate located proximate the input surface for one of the lenses.

Provided are a phase difference film that has a small change in tint in a case where the phase difference film is combined with a polarizer and then applied as a circularly polarizing plate to a display device, and the display device is observed from an oblique direction at all azimuthal angles; as well as a circularly polarizing plate and a display device. The phase difference film includes a first optically anisotropic layer, a second optically anisotropic layer, a third optically anisotropic layer, and a fourth optically anisotropic layer in this order, in which the first optically anisotropic layer is a C-plate, the second optically anisotropic layer is an A-plate, the third optically anisotropic layer is a layer formed by fixing a liquid crystal compound twist-aligned along a helical axis extending in a thickness direction, and the first, second third, and fourth optically anisotropic layers have a predetermined configuration.

The present disclosure provides an optical assembly, a liquid crystal display device, and an electronic equipment. The optical assembly includes: a linear polarizer, a half-wave plate, and a quarter-wave plate stacked in sequence. An absorption axis of the linear polarizer is substantially perpendicular to a first direction, and the first direction is parallel to a surface of the linear polarizer; an angle between an in-plane slow axis of the half-wave plate and the first direction is in a range of 100° to 110°; an angle between an in-plane slow axis of the quarter-wave plate and the first direction is in a range of 160° to 170°.

The disclosed electronic shutter may include (1) an optical structure including a medium through which light from an environment passes to a lens of a camera for capturing an image of the environment; and (2) a controlling circuit that (a) detects a first condition of a signal, where the first condition indicates an activation of the camera, (b) controls, in response, to the first condition, the optical structure such that the medium attains a transparent optical state, (c) detects a second condition of the signal, where the second condition indicates a deactivation of the camera, and (d) controls, in response to the second condition, the optical structure such that the medium attains a non-transparent optical state in a manner that prevents visual detection of the lens from the environment. Various other methods and systems are also disclosed.

The disclosed electronic shutter may include (1) an optical structure including a medium through which light from an environment passes to a lens of a camera for capturing an image of the environment; and (2) a controlling circuit that (a) detects a first condition of a signal, where the first condition indicates an activation of the camera, (b) controls, in response, to the first condition, the optical structure such that the medium attains a transparent optical state, (c) detects a second condition of the signal, where the second condition indicates a deactivation of the camera, and (d) controls, in response to the second condition, the optical structure such that the medium attains a non-transparent optical state in a manner that prevents visual detection of the lens from the environment. Various other methods and systems are also disclosed.

A liquid-crystal display device includes a pair of substrates, a liquid-crystal material layer sandwiched between the pair of substrates, and an optical compensation element having an optical compensation layer, the optical compensation layer including a stack group in which high-refractive-index obliquely deposited films and low-refractive-index obliquely deposited films are alternately deposited, the high-refractive-index obliquely deposited films and the low-refractive-index obliquely deposited films having a same tilt direction with respect to a normal line of a surface on which the films are deposited.