The present disclosure provides a height and angle-adjustable foldable computer bracket, including a bottom plate, a support plate, and expansion and retraction brackets connected between the bottom plate and the support plate. First connecting lugs are respectively arranged at the top of the bottom plate and the bottom of the support plate. Second connecting lugs are arranged at two ends of the expansion and retraction brackets. Shaft holes are formed in the first connecting lugs and the second connecting lugs. A rotating shaft structure is mounted between each first connecting lug and the corresponding second connecting lug. Engaging teeth are formed in the shaft holes. The rotating shaft structure includes: a rotating shaft with the engaging teeth, a limiting shaft with the engaging teeth, and a returning piece.

A stand having a base, an arm attached to the base, an electrical connector, and an adjustable mounting head attached to the arm. The adjustable mounting head includes a plurality of keepers actuated by a button, wherein the plurality of keepers are each configured to engage a respective one of a plurality of receivers on a case for an electronic device such that the case is removably attachable to the adjustable mounting head for holding the case and an installed electronic device on the stand in a preferred orientation. The mounting head includes electrical contacts electrically connected to the electrical connector of the stand and configured to contact an electrical interface of the case for providing the electrical power from the electrical connector of the stand to the installed electronic device through the electrical contacts of the mounting head and through the case.

An audiovisual assembly for entertainment includes a housing, which define an interior space. A display module and an electronics module are engaged to the housing and positioned in the interior space. The display module comprises a screen, which is selectively extensible from the housing through a slot positioned in a top thereof. A speaker is engaged to the housing. The electronics module is operationally engaged to the display module and the speaker. A remote controller is wirelessly engaged to the electronics module and thus is positioned to selectively signal the electronics module to display content on the screen and to broadcast an audio signal from the speaker.

A display support system includes a support rail extending in a first direction and at least one support bar carried by the support rail. The support bar is moveable relative to the support rail in at least the first and second directions. A mounting member is engaged with the support bar, with the mounting member being adapted to be coupled to a display. A method for mounting an array of displays on a wall, and a support cart for mounting a display, are also provided.

A supporting device for bearing a display is provided. The supporting device comprises a base, a hollow housing, a bearing module, a linkage module, and an elastic element, wherein an elastic force provided by the elastic element is the greatest when the hollow housing is in a horizontal position; the elastic force decreases when the hollow housing moves from the horizontal position to a raised position, hence, the hollow housing can stop at any positons between the horizontal position and the raised position.

Examples of stands and display devices are described. In an example, a stand may be coupled to a pair of racks, a driving gear, and a pair of pinion gears. The pair of pinion gears may be operably coupled to the driving gear. Further, the pair of pinion gears may be meshed with the pair of racks. Upon actuation of the driving gear, the pair of pinion gears may be rotated relative to the pair of racks to cause movement of the gears along the pair of racks.

An electronic device includes a device body and a stand supporting the device body. The stand includes: a base; a suction member facing the lower surface of base, including a suction surface that adheres to the placement surface by negative pressure generated in a gap between the placement surface and the suction surface, and including a ventilation hole in fluid communication with the gap; and a slide valve, located between the base and the suction member, that slides along the lower surface of the base between opened and closed positions where the ventilation hole is opened and closed to let and interrupt air into the gap, respectively.

A portable electronic device including a first body, a driving source, a stand, a second body and a magnetic driven component is provided. The driving source is disposed in the first body and includes a motor and a screw rod coupled to the motor. The screw rod has a magnetic screw thread portion. The stand is pivoted to the first body, and the second body is pivoted to the stand. The magnetic driven component is disposed at a side of the second body and the magnetic driven component is magnetically attracted to the magnetic screw thread portion of the screw rod. The motor drives the screw rod to rotate and the magnetic screw thread portion drives the magnetic driven component slide on the first body. The second body and the magnetic driven component move synchronously and drive the stand rotate with respect to the first body.

A dock for a portable electronic device, the dock includes a base including one or more ports, a cradle defining an interior volume configured to house at least a portion of the portable electronic device, the cradle being pivotable relative to the base to change an orientation of the portable electronic device relative to the base, and a security apparatus configured to be inserted into a port of the portable electronic device upon insertion of the portable electronic device into the cradle to prohibit removal of the portable electronic device from the dock, the security apparatus including a data and power transmission apparatus that is electrically connected to the one or more ports.

A stand includes a body, sliding front and rear extending frames, first and second pivotal supports at two sides respectively, and two third pivotal supports at two sides of the sliding lower extending frame. The first, second and third pivotal supports are each capable of pivoting to dispose the body in an acute angle with respect to a supporting surface or rest the body on the supporting surface. The sliding front and rear extending frame each include a cross member and two sliding rods disposed at two ends of the cross member respectively, each sliding rod extending into the body. An angle of the stand with respect to the supporting surface is adjustable.