An electronic device is disclosed and includes a substrate, a circuit layer, and a plurality of diodes. The substrate has a plurality of structures. The circuit layer is disposed on the substrate. The diodes are disposed on the circuit layer, wherein a first spacing is defined as a distance between a center point of a first one of the structures and a center point of a second one of the structures, a second spacing is defined as a distance between a center point of a third one of the structures and a center point of a fourth one of the structures, and an absolute value of a difference between the first spacing and the second spacing is less than 0.5 times radius of curvature of the electronic device when the electronic device is bent.

At least one first display module selected from display modules arranged in a matrix to form a display screen for displaying an image has a first screw hole into which a first screw is screwed with the first screw pressed against a second display module placed adjacent to the first display module in forming the display screen. The first display module has a through-hole. The second display module has a second screw hole into which a second screw is screwed after the second screw is put through the through-hole toward the second display module. The second screw includes a shank having an outer diameter smaller than an inner diameter of the through-hole and a head having an outer diameter greater than the inner diameter of the through-hole.

The display panel includes a base substrate; and display areas arranged on the base substrate; each of the display areas includes pixel units; each of the pixel units includes sub-pixels; each of the sub-pixels includes a light-emitting chip; in any one of the display areas, a space between two adjacent columns of pixel units in a row direction has a first space size; and a space between two adjacent rows of pixel units in a column direction has a second space size; a space between two nearest display areas in the row direction has a third space size, and the third space size is approximately same as the first space size; and/or a space between two nearest display areas in the column direction has a fourth space size, and the fourth space size is approximately same as the second space size.

A display module comprises a support, a plurality of light-emitting elements coupled to the support and a latch mechanism to removeably couple the support to a chassis. The latch mechanism includes a movable member, a latch member, and a linkage mechanism. The movable member is moved from a first position to a second position when magnetically engaged by a tool magnet. The latch member moves between a first latch member position and a second latch member position and can engage a chassis mating structure when in the first latch member position. The linkage mechanism mechanically connects the movable member to the latch member so that they move together such that the latch member is in the first latch member position when the movable member is in the first position and is in the second latch member position when the movable member is in the second position.

A spliced LED box body includes at least four LED boxes arranged in rows and columns and spliced with each other, wherein connecting components are provided on opposite adjacent splicing surfaces of the LED box. The connecting components include a first connecting component, a second connecting component, a third connecting component and a fourth connecting component. The first connecting component and third connecting component are arranged on two adjacent side surfaces of the LED box, the second connecting component is arranged on a side surface of the LED box opposite to the first connecting component, and the fourth connecting component is arranged on a side surface of the LED box opposite to the third connecting component. When two adjacent LED boxes are spliced, the first connecting component and the second connecting component are matched and connected, and the third connecting component and the fourth connecting component are matched and connected.

An electronic device includes a substrate, an array circuit, a first distribution terminal, a second distribution terminal, a first power input terminal, a first wire and a second wire. The first distribution terminal and the second distribution terminal are disposed on a side surface of the substrate and are electrically connected to the array circuit. The first power input terminal, the first wire and the second wire are disposed on a bottom surface of the substrate. A first end of the first power input terminal is electrically connected to the first distribution terminals through the first wire. A second end of the first power input terminal opposite to the first end is electrically connected to the second distribution terminals through the second wire. A minimum distance between the first end and the first distribution terminal is less than a minimum distance between the second end and the first distribution terminal.

Provided is a Light Emitting Diode (LED) display device. The LED display device includes: a rectangle framework, including a frame, a first transverse beam and a second transverse beam arranged inside the frame at intervals, an adapter plate assembly, including a fixed plate mounted at a strip-like gap and an adapter plate detachably arranged on a rear side of the fixed plate, the fixed plate being provided with a lock, a display module, mounted on a front side of the rectangle framework through a magnetic attraction structure, a rear side of the display module being provided with a first strip-shaped lock hole, wherein, the lock includes a rotary shaft rotatably arranged on the fixed plate and a first lock tongue arranged on the rotary shaft, the first lock tongue is able to go through the first strip-shaped lock hole and has a first unlocking position corresponding to the first strip-shaped lock hole and a first locking position that is staggered with the first strip-shaped lock hole, and the adapter plate fits the display module through a connector in a plugging-in manner. The technical solution of the application effectively solves a problem that a display module in a related art falls due to separation from a box body.

A display apparatus comprises a first plate including a first display panel and a first link member, wherein the first link member includes a first internal link configured to move in a longitudinal direction of the first link member, a second plate including a second display panel and a second link member, wherein the second link member includes a second internal link configured to move in a longitudinal direction of the second link member and a hinge member rotatably connecting the first link member to the second link member to thereby rotatably connect the first display panel to the second display panel, wherein at least of the first internal link and the second internal link include a first opposing link including a first rack, a second opposing link including a second rack facing the first rack, and a pinion gear interlocking the first opposing link and the second opposing link.

A display apparatus that is easily installed and assembled and a tiled display apparatus including the same are provided. The display apparatus comprises a display panel, and a support member supporting the display panel, and a power transfer member rotatably disposed on a first side of the support member.

Disclosed are a rotary knob lock, a maintenance tool and an LED display. The rotary knob lock includes a lock body, the lock body includes a head part and a limit part, a diameter of the head part is larger than a diameter of the limit part, the head part is provided with a first magnet, the limit part is provided with a limit block; the maintenance tool includes a body, the body is provided with a second magnet inside, the second magnet and the first magnet of the rotary knob lock are magnetically attracted to each other; the LED display includes an LED display module and a cabinet, the LED display module is provided with a rotary knob lock, the cabinet is provided with an avoidance hole, when the LED display module is mounted on the cabinet, the first magnet and limit block are located on both sides.