This application discloses an electronic device, including a first folding portion, a second folding portion, a connecting portion, a flexible screen, a rotating shaft assembly, and a connecting rod assembly. The first folding portion is rotatably connected to the second folding portion through the connecting portion. The first folding portion, the second folding portion, and the connecting portion form a support structure. The rotating shaft assembly includes a rotating shaft. While the electronic device is being unfolded or folded, the first folding portion or the second folding portion rotate relative to the rotating shaft. The connecting rod assembly includes a first connecting rod and a second connecting rod. While the electronic device is being unfolded, the first connecting rod and the second connecting rod respectively drive the first folding portion and the second folding portion to be away from each other, and the connecting portion is increased.

A multi-link hinge assembly includes first and second link levers, first and second sliding rods, first and second bases, a central shaft, and first and second torque shafts. The first link lever is connected to the second base by the second torque shaft and is slidable along with the first sliding rod within the first base. The second link lever is connected to the first base by the first torque shaft and is slidable along with the second sliding rod within the second base. The central shaft extends through the first and second link levers. When the second base is rotated relative to the first torque shaft, the first and second sliding rods move toward the central shaft.

An electronic device is provided. The electronic device includes a display including a first area and a second area, a first housing supporting the first area and forming a first space on a rear surface of the first area, a second housing supporting the second area and forming a second space on a rear surface of the second area, a hinge structure connecting the first housing and the second housing to be foldable around a folding axis, a first bracket connecting the first housing and the hinge structure and having a first opening penetrating through a surface thereof, a second bracket connecting the second housing and the hinge structure and having a second opening penetrating through a surface thereof, and an FPCB extending from the first space to the second space across the folding axis in an extension direction.

A display device is disclosed. The display device includes a flexible display panel, a flexible plate positioned at a rear of the flexible display panel, a rigid bar adjacent to an edge of a back surface of the flexible plate, a drive unit installed to a rear of the flexible plate, and a wing plate connecting the drive unit to the rigid bar and hinge-coupled to the rigid bar.

A hinge assembly for pivotally coupling a door to a telecommunications chassis includes a hinge structure configured to attach the door to the telecommunications chassis, the hinge structure defining a door pivot point and a hinge pivot point that is spaced from the door pivot point, wherein a door coupled by the hinge structure to the telecommunications chassis can pivot with respect to the hinge structure independent of a pivoting motion of the hinge structure with respect to the telecommunications chassis, wherein the hinge structure further defines at least a portion of a pivot limiting structure spaced from the hinge pivot point, the portion of the pivot limiting structure defined by the hinge structure being configured to interact with the telecommunications chassis in limiting the pivoting motion of the hinge structure.

Motor control centers have units or buckets with an extendable/retractable power connection (stab) assembly and one or more operating lever interlocks that include a unit latch to latch to a cabinet and a power connection position interlock that blocks the handle of the units or buckets based on position of the power connection assembly, optionally also including a shutter cam that slides a shutter right and left.

An electronic device includes a first body, a second body, and a connection device. The first body has a first surface. A first display device is placed at the first surface. The second body has a second surface, and a second display device is placed at the second surface. The connection device configured to rotatably connect the first body and the second body. The electronic device has a first position. At the first position, the first surface and the second surface face a same direction, and the connection device is under a display surface formed by the first surface and the second surface and not exposed at the display surface.

A window panel includes: a substrate having a thickness of less than 100 μm and including a first surface and a second surface facing each other in a thickness direction; first ions dispersed in the substrate and each having a first ion radius; and second ions dispersed in the substrate and each having a second ion radius which is greater than the first ion radius, wherein the second ions generate a compressive stress, the compressive stress is reduced with depth from the first surface or the second surface within a range from the first surface or the second surface to a ½ point of the thickness.

A coupling assembly includes: a screw rod; a holder mounted on the screw rod; a shaft sleeve set and a connection rod set. The shaft sleeve set includes: a first shaft sleeve embedded in the holder; and a second shaft sleeve fitted over the screw rod at an outer side and slidable on the screw rod. The connection rod set includes: a first connection rod having an end fixedly coupled to the first shaft sleeve; and a second connection rod having an end fixedly coupled to the second shaft sleeve, the second connection rod and the first connection rod crossing and being coupled at a junction. The first connection rod and the second connection rod cross to form an angle.

A display apparatus includes: a display panel including: a folding area foldable around a virtual folding axis extending in a first direction; and non-folding areas spaced from each other with the folding area therebetween; and a protection member including: a hinge member below the display panel, and overlapping with the folding area to be foldable around the folding axis; a base member overlapping with the non-folding areas; and a support member connected to the hinge member and the base member. The hinge member includes: extension parts extending in the first direction and located along a second direction crossing the first direction, each of the extension parts having a guide groove; joint parts connected to opposite ends of the extension parts, and rotatably connected to one another; and a guide part including a protruding part protruding in the first direction to be connected to the guide grooves of the extension parts.