A touch screen panel may include a liquid crystal, a first transparent electrode and a second transparent electrode provided at both sides of the liquid crystal, and a controller configured to transfer image data to the first transparent electrode and the second transparent electrode in a first mode and sense a touch of a user on at least one of the first transparent electrode and the second transparent electrode in a second mode.

An object of the present invention is to provide a transmission decorative film capable of applying different visual effects on observation surfaces and a method of manufacturing the same.

Provided is a transmission decorative film of the present invention including: a circular polarization plate; and a circular polarization reflection layer disposed on the circular polarization plate, in which the circular polarization reflection layer includes at least one or more first cholesteric liquid crystalline layers that reflect any one of left circularly polarized light or right circularly polarized light, the first cholesteric liquid crystalline layer includes two or more reflection regions having different selective reflection wavelengths, and the circular polarization plate transmits circularly polarized light having a revolution direction opposite to a revolution direction of the circularly polarized light reflected by the first cholesteric liquid crystalline layer.

A wavelength selective reflection display (10) comprises a wavelength selective reflection medium (20) and a backing member (30) having a first, non-reflective optical state, and a second, reflective optical state. Both the wavelength selective reflection medium (20) and the backing member (30) are divided into pixels (40, 50, 60), and the backing member (30) is switchable between its first and second optical states on a pixel-by-pixel basis. The pixels of the backing member (30) are substantially aligned with those of the wavelength selective reflection medium (20).

Thermally and electrically driven dynamic filters for smart windows are configured to filter electromagnetic radiation in the infrared range of wavelengths. Some thermochromic filters embodiments are configured to filter both electromagnetic radiation in the infrared range of wavelengths and electromagnetic radiation in the visible range of wavelengths.

A reflective liquid crystal display device includes a first substrate on which a plurality of pixel areas are defined, a second substrate facing the first substrate, a cholesteric liquid crystal (CLC) layer between the first substrate and the second substrate, a linear polarization member on the second substrate, a retardation member between the linear polarization member and the CLC layer, a light absorbing layer on the first substrate, and a light conversion member corresponding to the pixel area and interposed between the CLC layer and the light absorbing layer.

Provided are an optical laminate in which a large diffraction angle can be obtained, a light guide element, and an AR display device. The optical laminate includes, in the following order: a first optically-anisotropic layer that is formed of a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction; a cholesteric liquid crystal layer that is obtained by immobilizing a cholesteric liquid crystalline phase; and a second optically-anisotropic layer that is formed of a composition including a liquid crystal compound and has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound continuously rotates in at least one in-plane direction, in which in the first optically-anisotropic layer and the second optically-anisotropic layer, the one in-plane directions in which the direction of the optical axis derived from the liquid crystal compound continuously rotates are the same, and rotation directions of the direction of the optical axis derived from the liquid crystal compound in the one in-plane direction are the same.

The present disclosure relates to a display panel, a display device and a smart watch, wherein, the display panel includes a liquid crystal display panel; and a light-exiting surface of the liquid crystal display panel is provided with a cholesteric liquid crystal display film layer; wherein, the cholesteric liquid crystal display film layer is switchable between a scattering state and a transparent state depending on a voltage applied thereto, and is used for displaying by means of its scattering state when the liquid crystal display panel is powered off.

A half mirror includes a circularly polarized light reflecting layer including a cholesteric liquid crystal layer, a barrier layer, a bonding layer, and a front panel. The barrier layer, which is, for example, a layer formed by curing a composition containing a urethane (meth)acrylate monomer, is disposed between the bonding layer and the circularly polarized light reflecting layer.

A head-up display system includes a drawing device that draws a screen image and a combiner that displays the screen image as a virtual image. The combiner has a half mirror including a cholesteric liquid crystal layer, and projection light that enters the combiner is circularly polarized light.

An object is to provide: a transparent screen having high transparency in which a hot spot caused by transmitted light can be reduced; and an image display system in which visibility of a screen is excellent and a hot spot is reduced by using the transparent screen. The object is achieved by the transparent screen including: a dot array in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and a layer that is obtained by immobilizing a cholesteric liquid crystalline phase.