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: 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 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: A connector, fixed on a circuit board for connecting to a signal line includes a base plate, a base body, a cover part and an elastic component. The base body is fixed on the base plate A circuit-board signal line at a bottom end of the base body is electrically coupled to the circuit board. The cover part, connected to the base body, can be opened or closed relative to the base body. The elastic component is for storing an elastic restoring force for engaging the cover part with the base body. By closing the cover part relative to the base body, the connector fixes the signal line in the base body such that the signal line is electrically coupled to the circuit-board signal line. When the cover part is opened relative to the base body, the signal line can be departed from the connector.

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 packing box (2) includes a receptacle portion (21) and at least one buffer portion (23). The receptacle portion includes a plurality of side walls (213, 215, 217) and a base (211) perpendicular to thereof. The side walls and the base cooperatively define a receiving space. The at least one buffer portion extends from at least one of the side walls. The at least one buffer portion is located in the receiving space and including a first supporting member (213b) and at least one buffer layer (233).

Abstract: A connector, fixed on a circuit board for connecting to a signal line includes a base plate, a base body, a cover part and an elastic component. The base body is fixed on the base plate A circuit-board signal line at a bottom end of the base body is electrically coupled to the circuit board. The cover part, connected to the base body, can be opened or closed relative to the base body. The elastic component is for storing an elastic restoring force for engaging the cover part with the base body. By closing the cover part relative to the base body, the connector fixes the signal line in the base body such that the signal line is electrically coupled to the circuit-board signal line. When the cover part is opened relative to the base body, the signal line can be departed from the connector.