A flexible display device includes a display panel configured to display an image, and a polarizing plate on the display panel. The flexible display device includes a folding area and a non-folding area. A first thickness of the polarizing plate in the folding area is greater than a second thickness of the polarizing plate in the non-folding area.

An object of the present invention is to provide is an optical laminate film exhibiting excellent reflection tint and an organic EL display device using this optical laminate film and exhibiting excellent reflection tint when turned off. The object is achieved by providing an optical laminate film including a polarizer, a phase difference layer, and a circularly polarized light separating layer in this order, in which an in-plane retardation Re(550) of the phase difference layer is 120 to 160 nm, the polarizer and the phase difference layer are arranged to form an angle of 45°±10°, the circularly polarized light separating layer is a cholesteric liquid crystal layer formed by fixing a cholesteric liquid crystalline phase and having a liquid crystalline molecule as a main component, and Re(550) is 0.5 to 3.0 nm, and an optical laminate film in which a circularly polarized light separating layer has an in-plane phase difference and an angle formed between a slow axis of a phase difference layer and a slow axis of the circularly polarized light separating layer is −30° to 30°.

Provided are a novel optical element that can be used as a sensor or the like and a sensor including the same optical element. The optical element includes a cholesteric liquid crystal layer, in which the cholesteric liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from a liquid crystal compound changes while continuously rotating in at least one in-plane direction, and in a case where a cross-section taken in a thickness direction conforming the in-plane direction in which the direction of the optical axis rotates is observed using a scanning electron microscope, a portion where a bright line and a dark line derived from the cholesteric liquid crystalline phase are discontinuous is provided in the cholesteric liquid crystal layer in the in-plane direction in which the direction of the optical axis rotates.

A device for combining light beams which interact with adjacently arranged pixels of a light modulator, having a beam splitting component, a beam combining component, and a beam superposition component. The beam splitting component is configured such that incident light beams are split into a first subbeam and a second subbeam so that the first subbeam propagates toward a first pixel of the light modulator and the second subbeam propagates toward a second pixel of the light modulator. The beam combining component is configured and arranged so that the first subbeam and the second subbeam are combined after interaction with pixels of the light modulator. The beam splitting component and the beam combining component are configured and arranged in such a way that a sum of optical path lengths of the first subbeam and the second subbeam is respectively constant for different angles of incidence.

The present invention provides: (I) a display device including a display panel, a retardation layer, and a polarizer which are stacked in the stated order from a back surface side to a viewing surface side and integrated without an adhesive layer; and (II) a method for producing a display device including: forming a first alignment film on a display panel, applying a solution containing first polymerizable liquid crystal to the first alignment film, and curing the first polymerizable liquid crystal to produce a retardation layer; and forming a second alignment film on the retardation layer, applying a solution containing second polymerizable liquid crystal and a dichroic material to the second alignment film, and curing the second polymerizable liquid crystal to produce a polarizer.

Provided are a thin stereoscopic image display device that can also deal with a requirement for flexibility and a wearable display device including this stereoscopic image display device. The stereoscopic image display device includes a display panel, an optical element, and a circularly polarizing plate, in which the optical element includes an optically-anisotropic layer that is formed of a liquid crystal compound, the optically-anisotropic layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating along at least one in-plane direction of the optically-anisotropic layer, and circularly polarized light emitted from the display panel is caused to advance in a direction different from a direction in which the circularly polarized light component is incident.

A display device includes: a backlight unit, a camera hole penetrating the backlight unit, a camera in the camera hole, a liquid crystal panel on the backlight unit, the liquid crystal panel including a transparent portion on the camera hole, and at least one light-blocking member in the camera hole, the at least one light-blocking member being configured to reduce one or more of: light leakage from the camera hole and introduction of impurities into the camera hole.

Disclosed herein are techniques for displaying images on multiple image planes in a near-eye display system. A switchable optical device includes a first polarizer configurable to polarize incident light into light of a first circular polarization state, and a second polarizer configurable to transmit light of a second circular polarization state and reflect light of the first circular polarization state into light of the first circular polarization state. The switchable optical device also includes a partial reflector positioned between the first polarizer and the second polarizer. The partial reflector is configured to transmit light from the first polarizer and reflect light from the second polarizer, where the reflected light and the light from the second polarizer have different polarization states. At least one of the first polarizer or the second polarizer includes a cholesteric liquid crystal (CLC) circular polarizer that is switchable by a voltage signal.

A display panel has a display area and a peripheral area. The peripheral area is located outside the display area. The display panel includes a first substrate, a second substrate, and a display medium layer. The second substrate is located above the first substrate and includes a first polarization layer, a first quarter wave plate (QWP), a reflection layer, and a pixel array. The first polarization layer is located within the display area and the peripheral area and includes a wire-grid polarizer. The first QWP is located within the peripheral area. The reflection layer is located within the peripheral area, in which the first QWP is located between the first polarization layer and the reflection layer. The pixel array is at least located within the display area. The display medium layer is located between the first substrate and the second substrate.

An electronic device includes a cover substrate defining a first surface and a second surface. A polarizer is coupled to the second surface of the cover substrate and an electro-optic element. A light source is coupled to the electro-optic element. A concealment layer extends proximate a perimeter of the electro-optic element. The concealment layer is positioned between the polarizer and the electro-optic element.