Disclosed a display screen having a mirror function, a control method, a device and a terminal. The display screen includes: a screen lens (20), a liquid crystal screen (22) and a nano suspension layer (21), wherein the nano suspension layer (21) is disposed between the screen lens and the liquid crystal display. The control method includes: controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-off signal; and controlling the upper plate to provide a voltage, or controlling the upper plate to provide a voltage and controlling the magnetic layer to provide a static magnetic field perpendicular to the display screen upon receipt of the trigger-on signal.

The present disclosure relates to the field of display technology, and provides an electronic paper, a manufacturing method thereof, and a handwriting electronic paper device. The electronic paper includes: a first electrode; a second transparent electrode arranged opposite to the first electrode and at a display side of the electronic paper; and an electronic ink layer arranged between the first electrode and the second transparent electrode. Microcapsules are distributed in the electronic ink layer, and each microcapsule is provided therein with charged magnetic particles which are capable of being used to display at least one color.

An optical element including: a substrate with first and second large surfaces and a second; a plurality of opaque surfaces near or on the first large surface; in a first alternative, a plurality of surfaces near or on the second large surface which are switchable between an opaque state and a transparent state, or, in a second alternative, a plurality of chambers in the substrate which are filled with a fluid, wherein the fluid contains up to 30 volume percent of electrophoretically movable particles which absorb light and can be localized in two different states in the chambers by a variable electromagnetic field so that, in a first state the optical element limits the propagation directions of light which impinges on the light entry surface and in a second state, the optical element does not limit the propagation directions of light impinging on the light entry surface.

An optical element including: a substrate with first and second large surfaces and a second; a plurality of opaque surfaces near or on the first large surface; in a first alternative, a plurality of surfaces near or on the second large surface which are switchable between an opaque state and a transparent state, or, in a second alternative, a plurality of chambers in the substrate which are filled with a fluid, wherein the fluid contains up to 30 volume percent of electrophoretically movable particles which absorb light and can be localized in two different states in the chambers by a variable electromagnetic field so that, in a first state the optical element limits the propagation directions of light which impinges on the light entry surface and in a second state, the optical element does not limit the propagation directions of light impinging on the light entry surface.

An optical element including: a substrate with first and second large surfaces and a second; a plurality of opaque surfaces near or on the first large surface; in a first alternative, a plurality of surfaces near or on the second large surface which are switchable between an opaque state and a transparent state, or, in a second alternative, a plurality of chambers in the substrate which are filled with a fluid, wherein the fluid contains up to 30 volume percent of electrophoretically movable particles which absorb light and can be localized in two different states in the chambers by a variable electromagnetic field so that, in a first state the optical element limits the propagation directions of light which impinges on the light entry surface and in a second state, the optical element does not limit the propagation directions of light impinging on the light entry surface.

An optical element including: a substrate with first and second large surfaces and a second; a plurality of opaque surfaces near or on the first large surface; in a first alternative, a plurality of surfaces near or on the second large surface which are switchable between an opaque state and a transparent state, or, in a second alternative, a plurality of chambers in the substrate which are filled with a fluid, wherein the fluid contains up to 30 volume percent of electrophoretically movable particles which absorb light and can be localized in two different states in the chambers by a variable electromagnetic field so that, in a first state the optical element limits the propagation directions of light which impinges on the light entry surface and in a second state, the optical element does not limit the propagation directions of light impinging on the light entry surface.

An optical element comprising a planar substrate with a first large surface functioning as a light-entrance surface, and a second large surface functioning as a light-exit surface. The optical element further comprises a liquid or skeleton matrix arranged between the first and second large surface, and electrophoretically or magnetophoretically movable particles that interact with light of one or several wavelengths or wavelength ranges. The optical element also comprises an electromagnetic switching structure configured in a planar shape in the substrate on one or both large surfaces and/or between the large surfaces, these electromagnetic switching structures generating, in a switched-on state, an electromagnetic field, whereby the particles are moved in the liquid or the skeleton matrix, thus causing, due to the interaction with the particles, a change of an angle-dependent transmission, by the optical element, of light of the wavelengths or wavelength ranges that enters the substrate through the light-entrance surface.

An optical element comprising a planar substrate with a first large surface functioning as a light-entrance surface, and a second large surface functioning as a light-exit surface. The optical element further comprises a liquid or skeleton matrix arranged between the first and second large surface, and electrophoretically or magnetophoretically movable particles that interact with light of one or several wavelengths or wavelength ranges. The optical element also comprises an electromagnetic switching structure configured in a planar shape in the substrate on one or both large surfaces and/or between the large surfaces, these electromagnetic switching structures generating, in a switched-on state, an electromagnetic field, whereby the particles are moved in the liquid or the skeleton matrix, thus causing, due to the interaction with the particles, a change of an angle-dependent transmission, by the optical element, of light of the wavelengths or wavelength ranges that enters the substrate through the light-entrance surface.

Embodiments of the present application provide an array substrate and manufacturing method thereof, and a display panel, display device, display kit. The array substrate includes: a base substrate, and a reflective layer on a side of the base substrate; the reflective layer includes: a plurality of micro-capsules; each of the micro-capsules includes: a plurality of absorbing particles and a plurality of reflecting particles; the absorbing particles are magnetic particles absorbing light; the reflecting particles are non-magnetic particles reflecting light.

Embodiments of the present application provide an array substrate and manufacturing method thereof, and a display panel, display device, display kit. The array substrate includes: a base substrate, and a reflective layer on a side of the base substrate; the reflective layer includes: a plurality of micro-capsules; each of the micro-capsules includes: a plurality of absorbing particles and a plurality of reflecting particles; the absorbing particles are magnetic particles absorbing light; the reflecting particles are non-magnetic particles reflecting light.