Abstract: A support device for a display includes a support assembly, a rotating assembly, and a fixing assembly. The support assembly includes a base, a plug defined on the base, a support rod coupled to the base, and a first conducting line received in the support rod, and connected to the plug. The rotating assembly includes a connecting member coupled to the support rod, a rotating shaft connected to the connecting member, and a second conducting line received in the rotating shaft. The second conducting line is electrically connected to the first conducting line by the connecting member. The fixing assembly includes a fixing block fastened to the rotating shaft away from the base, a conducting block assembled to the fixing block and electrically connected to the second conducting line, and a rotating member rotationally connected to the fixing block.

Abstract: A protective cover includes a first housing configured to receive an electronic device therein, a second housing and a connecting assembly coupling the first housing with the second housing. The connecting assembly includes a first connector assembly including a first connecting shell rotatably coupled to the first housing and a first conducting member capable of coupled to the electronic device, and a second connector assembly including a second connecting shell rotatably coupled to the second housing and two second conducting members electrically coupled to the display screen respectively. When the first conducting member is electrically coupled to one second conducting member, the second housing is capable of rotating relative to the first housing about a first direction. When the second housing is capable of rotating relative to the first housing to a predefined position, the first conducting member is thus electrically coupled to the other second conducting member.

Abstract: A support for a display which allows for the safe supply of electrical power when the display is reoriented includes a mounting board for mounting a display and a rack. The rack includes a power port and a power rail electrically connected to the power port. A slip assembly is slidable mounted on the rack. The mounting board is secured on the slip assembly. The slip assembly includes a conduction piece which is electrically connected to a display. The conduction piece is in electrical contact with different portions of the power rail when the slip assembly slides on the rack.

Abstract: An assembling apparatus includes a rotating table, a plurality of assembling mechanisms, at least one assembling fixture, and a turnover mechanism configured to flip the assembling fixture. The rotating table includes a plurality of working stations. Each of the plurality of working stations corresponds to each of the plurality of assembling mechanisms. The at least one assembling fixture is positioned on the plurality of working stations. The plurality of assembling mechanisms are configured to supply and locate kinds of assemblies of a backlight module, and the kinds of the components of the backlight module are assembled into the at least one assembling fixture in turn.

Abstract: A protective cover includes a first housing configured to receive an electronic device therein, a second housing and a connecting assembly coupling the first housing with the second housing. The connecting assembly includes a first connector assembly including a first connecting shell rotatably coupled to the first housing and a first conducting member capable of coupled to the electronic device, and a second connector assembly including a second connecting shell rotatably coupled to the second housing and two second conducting members electrically coupled to the display screen respectively. When the first conducting member is electrically coupled to one second conducting member, the second housing is capable of rotating relative to the first housing about a first direction. When the second housing is capable of rotating relative to the first housing to a predefined position, the first conducting member is thus electrically coupled to the other second conducting member.

Abstract: A support device for a display includes a support assembly, a rotating assembly, and a fixing assembly. The support assembly includes a base, a plug defined on the base, a support rod coupled to the base, and a first conducting line received in the support rod, and connected to the plug. The rotating assembly includes a connecting member coupled to the support rod, a rotating shaft connected to the connecting member, and a second conducting line received in the rotating shaft. The second conducting line is electrically connected to the first conducting line by the connecting member. The fixing assembly includes a fixing block fastened to the rotating shaft away from the base, a conducting block assembled to the fixing block and electrically connected to the second conducting line, and a rotating member rotationally connected to the fixing block.

Abstract: A demonstration device includes a handheld terminal and a receiving terminal. The handheld terminal includes a mode switch key, and a first micro control unit. The mode switch key can generate a mode switch trigger signal to change from TV signal mode for example, to whiteboard mode. The receiving terminal includes a second micro control unit, and a mode switch executing unit. The second micro control unit can receive the mode switch control signal, and the mode switch executing unit can switch the receiving terminal from TV signal mode to a whiteboard mode according to the mode switch control signal. The receiving terminal draws a picture with lines of particular colors and widths according to movements of the handheld terminal when held in a user's hand.

Abstract: A protective cover allowing unrestricted functionality to an electronic device includes a foldable protective board and a receiving portion containing the electronic device. The protective cover also includes a solar panel, a keyboard with touch input function and a wireless module. The wireless module is configured for wirelessly connecting the keyboard with the electronic device. A method for operating the protective cover is also provided.

Abstract: A support for a display which allows for the safe supply of electrical power when the display is reoriented includes a mounting board for mounting a display and a rack. The rack includes a power port and a power rail electrically connected to the power port. A slip assembly is slidable mounted on the rack. The mounting board is secured on the slip assembly. The slip assembly includes a conduction piece which is electrically connected to a display. The conduction piece is in electrical contact with different portions of the power rail when the slip assembly slides on the rack.

Abstract: A demonstration device includes a handheld terminal and a receiving terminal. The handheld terminal includes a mode switch key, and a first micro control unit. The mode switch key can generate a mode switch trigger signal to change from TV signal mode for example, to whiteboard mode. The receiving terminal includes a second micro control unit, and a mode switch executing unit. The second micro control unit can receive the mode switch control signal, and the mode switch executing unit can switch the receiving terminal from TV signal mode to a whiteboard mode according to the mode switch control signal. The receiving terminal draws a picture with lines of particular colors and widths according to movements of the handheld terminal when held in a user's hand.

Abstract: An exemplary display device includes a display panel and a height-adjustment assembly. The height-adjustment assembly includes a rail unit defining a rail, a sliding unit, and a spring member. The sliding unit is configured to slide along the rail. The display panel is fixed to the sliding unit. The spring member is fixed to the rail unit, and is configured to provide an elastic force applied to the sliding unit to the sliding unit when the sliding unit slides along the rail.

Abstract: An exemplary support stand includes a base, a connecting assembly, a support bracket, two first hinge assemblies, and two second hinge assemblies. The connecting assembly is arranged between the base and the support bracket. The first hinge assemblies rotatably connect the connecting assembly to the base. The second hinge assemblies rotatably connect the connecting assembly to the support bracket. The connecting assembly comprises a connecting bracket and a connecting plate partially received in the connecting bracket. The connecting plate, the connecting bracket, one first hinge assembly, and one second hinge assembly form a quadrangle.

Abstract: An exemplary flat panel display (200) includes a display body (21) and a height adjusting member (23). The height adjusting member includes a supporting member (25) and a base (26). The supporting member includes a slider (30) and a sidewall (272). The slider is attached to the display body, and the slider abuts against but is slidable up and down along the sidewall. The slider is configured to be adjustable to vary an amount of friction between the slider and the sidewall such that a height of the display body is adjustable by applying external force to the display body and moving the display body to a new height.

Abstract: A backlit touch button assembly includes a circuit board, one or more light sources, a reflecting plate, and a marked strip. The light sources are positioned on the circuit board. The reflecting plate and the marked strip are attached to opposite sides of the circuit board. The reflecting plate defines one or more optical grooves receiving the light sources. Each optical groove has a reflecting portion. The circuit board defines one or more through holes adjacent to the light sources and corresponding to the reflecting portion of the optical grooves. The reflecting portion has a first reflecting surface, a second reflecting surface, and a third reflecting surface. The first reflecting surface and the third reflecting surface meet the second reflecting surface, respectively, at an angle.

Abstract: An exemplary display device includes a display panel and a rotating apparatus. The rotating apparatus includes a first spindle assembly, a conveyor connecting to the first spindle assembly, and a second spindle assembly. The first spindle assembly includes a first spindle configured to synchronously rotate with rotation of the display panel. The second spindle assembly includes a second spindle meshed with the first spindle, and is configured to be able to rotate and simultaneously rise or fall along the connecting assembly.

Abstract: A flat display device (2) has a foldable base (25). The flat display device includes a flat panel (21) pivoted to a base by a hinge assembly (23). The panel is capable of rotating with respect to the base between a position and a second position. A third position of the panel with respect to the base is intermediate between the first position and the second position. A first friction force provided by the hinge assembly when the panel rotates between the first position and the third position is smaller than a second friction force provided by the hinge assembly when the panel rotates between the third position and the second position.

Abstract: An exemplary support stand includes a base, a connecting assembly, a support bracket, two first hinge assemblies, and two second hinge assemblies. The connecting assembly is arranged between the base and the support bracket. The first hinge assemblies rotatably connect the connecting assembly to the base. The second hinge assemblies rotatably connect the connecting assembly to the support bracket. The connecting assembly comprises a connecting bracket and a connecting plate partially received in the connecting bracket. The connecting plate, the connecting bracket, one first hinge assembly, and one second hinge assembly form a quadrangle.

Abstract: An exemplary a display apparatus (2) includes a display panel (21) and a height adjusting device (25). The height adjusting device includes a base (26), a supporting member (27), a locking unit (30), and an elastic member (28). The display panel is fixed to the locking unit. The supporting member is fixed on the base. The supporting member includes two generally vertical friction grooves (2723, 2725). A depth of one of the friction grooves decreases with increasing height above the base, and a depth of the other friction groove increases with increasing height above the base. The locking unit is accommodated in the supporting member. The locking unit includes two sliders (33, 35) corresponding to the two friction grooves of the supporting member respectively. One of the sliders abuts a corresponding one of the friction grooves. The elastic member spans between the locking unit and the base.

Abstract: An exemplary display device includes a display panel and a height-adjustment assembly. The height-adjustment assembly includes a rail unit defining a rail, a sliding unit, and a spring member. The sliding unit is configured to slide along the rail. The display panel is fixed to the sliding unit. The spring member is fixed to the rail unit, and is configured to provide an elastic force applied to the sliding unit to the sliding unit when the sliding unit slides along the rail.

Abstract: An exemplary display device includes a display panel and a rotating apparatus. The rotating apparatus includes a first spindle assembly, a conveyor connecting to the first spindle assembly, and a second spindle assembly. The first spindle assembly includes a first spindle configured to synchronously rotate with rotation of the display panel. The second spindle assembly includes a second spindle meshed with the first spindle, and is configured to be able to rotate and simultaneously rise or fall along the connecting assembly.