Provided is a power cabinet including a first module provided with a first assembly portion and a second module provided with a second assembly portion. The first module has a first positioning groove formed on a bottom surface of the first module. The second module has a second positioning protrusion provided on a top surface thereof and a second positioning groove formed on a bottom surface thereof; or the first module has a first positioning groove formed on the bottom surface thereof, and the second module has a second positioning groove formed on the top surface thereof and a second positioning protrusion provided on the bottom surface thereof; or the first module is provided with a first positioning protrusion on a top surface thereof, and the second module has a second positioning protrusion provided on the top surface thereof and a second positioning groove formed on the bottom surface thereof.

An assembly for a display module, a display module and a spliced display apparatus are disclosed. The assembly is used for assembling with one or more positioning posts, and includes: a support structure provided with a bearing surface and a mounting surface opposite to each other, wherein the bearing surface is used for bearing the display substrate; one or more fasteners on the mounting surface of the support structure, wherein an accommodating cavity is provided in each fastener and includes a first opening in a surface of the fastener away from the support structure; and one or more clamping modules, each of which is in a corresponding accommodating cavity and used for clamping a corresponding positioning post entering into a corresponding accommodating cavity through a corresponding first opening.

An assembly for a display module, a display module and a spliced display apparatus are disclosed. The assembly is used for assembling with one or more positioning posts, and includes: a support structure provided with a bearing surface and a mounting surface opposite to each other, wherein the bearing surface is used for bearing the display substrate; one or more fasteners on the mounting surface of the support structure, wherein an accommodating cavity is provided in each fastener and includes a first opening in a surface of the fastener away from the support structure; and one or more clamping modules, each of which is in a corresponding accommodating cavity and used for clamping a corresponding positioning post entering into a corresponding accommodating cavity through a corresponding first opening.

An electronic device system includes: a first housing that includes a first processor and a first connector including a plurality of first terminals; and a second housing that is connectable to the first housing and includes first circuitry, second circuitry, and a second connector. The first circuitry includes an element for identifying the type of the second housing. The second circuitry includes one or more modules. The second connector includes a plurality of second terminals. When the second connector is connected to the first connector, the first processor reads out information about the element from the first circuitry to identify the type of the second housing. The first processor communicates with the second circuitry via one or more second terminals connected to the one or more modules used for the type identified, but not via a second terminal other than the one or more second terminals.

An intermediary support structure that includes a linear or rotational actuator to move the single display tile from a first position in a first plane along a predetermined path to a second position in the first plane. The first position is a loading position of the single display tile in the tiled display and the second position is a position in which the single display tile lies when installed in its operative position in the tiled display. When the single display tile is located in the first position, there is a distance between the loading position and the operative position, the linear or rotational actuator is configured so that the distance becomes smaller as the single display tile is moved along the predetermined path towards the second position. The linear or rotational actuator is accessible and remains accessible until an adjacent display tile is covering an access to the actuator.

An intermediary support structure that includes a linear or rotational actuator to move the single display tile from a first position in a first plane along a predetermined path to a second position in the first plane. The first position is a loading position of the single display tile in the tiled display and the second position is a position in which the single display tile lies when installed in its operative position in the tiled display. When the single display tile is located in the first position, there is a distance between the loading position and the operative position, the linear or rotational actuator is configured so that the distance becomes smaller as the single display tile is moved along the predetermined path towards the second position. The linear or rotational actuator is accessible and remains accessible until an adjacent display tile is covering an access to the actuator.

A display apparatus includes: a display module including a substrate on which a plurality of light emitting diodes (LEDs) are mounted; a cabinet provided to support the display module; and a circuit case attached to the cabinet. The display module is provided to be detachable from and mountable on a front side of the cabinet, and the display module is provided to be detachable from and mountable on a rear side of the cabinet.

A display apparatus includes: a display module including a substrate on which a plurality of light emitting diodes (LEDs) are mounted; a cabinet provided to support the display module; and a circuit case attached to the cabinet. The display module is provided to be detachable from and mountable on a front side of the cabinet, and the display module is provided to be detachable from and mountable on a rear side of the cabinet.

A display device includes: a display module including: a substrate including a fastening hole formed for insertion of a fastening member, and a plurality of light-emitting diodes (LEDs) facing a forward direction on the substrate; a cabinet on a rear side of the display module and including a magnet configured to couple the display module and the cabinet via magnetic attraction; and a separation device configured to be detachably mounted to the display module; where the separation device includes: a grip portion extending in a first direction, an extension portion extending from the grip portion, and an insertion member extending from the extension portion and having a cross-sectional area corresponding to the fastening hole so as to be insertable into the display module.

A display device includes: a display module including: a substrate including a fastening hole formed for insertion of a fastening member, and a plurality of light-emitting diodes (LEDs) facing a forward direction on the substrate; a cabinet on a rear side of the display module and including a magnet configured to couple the display module and the cabinet via magnetic attraction; and a separation device configured to be detachably mounted to the display module; where the separation device includes: a grip portion extending in a first direction, an extension portion extending from the grip portion, and an insertion member extending from the extension portion and having a cross-sectional area corresponding to the fastening hole so as to be insertable into the display module.