Disclosed are a light emission device including a magnetoactive element, a method of fabricating the same, and an electronic device including the light emission device. The disclosed light emission device may include a light emission layer; a first electrode and a second electrode spaced apart from each other on a first surface side of the light emission layer; and a magnetoactive fluid layer disposed on a second surface side of the light emission layer and having a plurality of nanostructures of which arrangement and distribution is configured to change according to application of a magnetic field. The light emitting properties of the light emission layer may be changed according to the arrangement and distribution of a plurality of nanostructures in the magnetoactive fluid layer. The plurality of nanostructures may include conductive nanowire and magnetic nanoparticle provided on the surfaces of the conductive nanowire.

A display apparatus includes a display panel configured to display an image; a supporting member on a rear surface of the display panel; a magnetic circuit unit in the supporting member, the magnetic circuit unit configured to generate a magnetic loop; and a coil unit on the rear surface of the display panel. The magnetic circuit unit and the coil unit are configured to vibrate the display panel to generate sound.

A pixel unit, a display method thereof and a display panel are provided. The pixel unit includes a display region and a non-display region, further includes a first substrate, a second substrate, a fluid layer and a control structure, the fluid layer is disposed between the first substrate and the second substrate, a fluid is disposed in the fluid layer, a flow of the fluid is controllable, and the control structure is disposed between the first substrate and the second substrate and configured to control the flow of the fluid.

A magnetochromatic display including a first substrate, first magnetic field modulating devices, a second substrate, and a magnetochromatic layer is provided. The first substrate has first pixel regions. The first magnetic field modulating devices are respectively disposed on the first pixel regions. The second substrate is disposed opposite to the first substrate. The magnetochromatic layer is disposed between the first substrate and the second substrate.

A recording layer is described that comprises a magnetizable material configured to store an image represented by magnetized regions of the magnetizable material. The magnetizable material may be brought into proximity with a magnetically responsive display layer, which may cause a change in an optical state of the display layer such that a facsimile of the image represented by the magnetized regions is produced within the display layer.

A magnetochromatic display including a first substrate, first magnetic field modulating devices, a second substrate, and a magnetochromatic layer is provided. The first substrate has first pixel regions. The first magnetic field modulating devices are respectively disposed on the first pixel regions. The second substrate is disposed opposite to the first substrate. The magnetochromatic layer is disposed between the first substrate and the second substrate.

A display apparatus includes a display panel configured to display an image; a supporting member on a rear surface of the display panel; a magnetic circuit unit in the supporting member, the magnetic circuit unit configured to generate a magnetic loop; and a coil unit on the rear surface of the display panel. The magnetic circuit unit and the coil unit are configured to vibrate the display panel to generate sound.

Provided is a magnetic-fluid display apparatus with a pickup function, the apparatus including a display container, a number of electromagnetic elements that control change of a magnetic field according to electrical signals, pickup devices, and a circuit board, where the display container is provided with a magnetic fluid, the magnetic fluid is located within a range of the magnetic field generated by the electromagnetic elements, and the electromagnetic elements and the pickup devices are both electrically connected with the circuit board. The magnetic-fluid display apparatus of the present invention has the pickup function, can directly control the change of the magnetic field according to surrounding sounds, can not only display according to playing of music, but also respond to the other sounds in an environment, and has a higher degree of freedom in use.

A magnetic scanning method includes acquiring an image from a storage device of a magnetic scanning device, controlling a magnetic read-write head of the magnetic scanning device to touch a reference point on a plane, generating an electric signal which reflects relevant information of the acquired image, inputting the electric signal reflecting the relevant information of the acquired image to the magnetic read-write head, when the electric signal reflecting the relevant information of the acquired image flows through the magnetic read-write head, controlling the magnetic read-write head to generate a magnetic field corresponding to the electric signal, controlling the magnetic read-write head to move and scan the plane from the reference point, to magnetize the magnetic powder on the plane by the magnetic field, and driving the magnetic powder to move relatively to generate an image similar to the acquired image.

A magnetic scanning method includes acquiring an image from a storage device of a magnetic scanning device, controlling a magnetic read-write head of the magnetic scanning device to touch a reference point on a plane, generating an electric signal which reflects relevant information of the acquired image, inputting the electric signal reflecting the relevant information of the acquired image to the magnetic read-write head, when the electric signal reflecting the relevant information of the acquired image flows through the magnetic read-write head, controlling the magnetic read-write head to generate a magnetic field corresponding to the electric signal, controlling the magnetic read-write head to move and scan the plane from the reference point, to magnetize the magnetic powder on the plane by the magnetic field, and driving the magnetic powder to move relatively to generate an image similar to the acquired image.