A hinged system includes a preassembled hinge module for pivotally coupling a first component to a second component. The preassembled hinge module includes a shaft, a torque element frictionally engaging the shaft, and a housing. The housing includes a cover, a side wall, and a rear wall that define an interior space enclosed within the housing. The interior space receives the torque element inside the housing. The cover defines a first aperture, and the rear wall defines a second aperture, the first aperture and the second aperture aligned with a pivot axis of the shaft. The shaft extends through at least the first aperture, the interior space, and the second aperture. The shaft is separate from, and configured to be mounted to, the first component. The housing is separate from, and configured to be mounted to, the second component.

A device for lubricating a hinge includes a housing, a first elongated opening, and an absorption element. The first elongated opening allows the housing to be placed over at least a portion of a hinge. The first absorption element entirely disposed within the housing such that the first absorption element is positioned to engage a portion of a hinge when the housing is placed over the portion of the hinge.

A foldable display device includes a display panel including a foldable display area, and a first panel support member supporting the display panel, the first panel support member overlapping a first area of the display panel. The foldable display device includes a second panel support member supporting the display panel, the second panel support member overlapping a second area of the display panel, and a hinge device including base hinge devices coupled to the first panel support member and the second panel support member to guide folding and unfolding of the display panel with respect to virtual rotation axes.

A foldable display device includes a display panel including a foldable display area, and a first panel support member supporting the display panel, the first panel support member overlapping a first area of the display panel. The foldable display device includes a second panel support member supporting the display panel, the second panel support member overlapping a second area of the display panel, and a hinge device including base hinge devices coupled to the first panel support member and the second panel support member to guide folding and unfolding of the display panel with respect to virtual rotation axes.

A device for lubricating a hinge includes a housing, a first elongated opening, and an absorption element. The first elongated opening allows the housing to be placed over at least a portion of a hinge. The first absorption element entirely disposed within the housing such that the first absorption element is positioned to engage a portion of a hinge when the housing is placed over the portion of the hinge.

A device for lubricating a hinge includes a housing, a first elongated opening, and an absorption element. The first elongated opening allows the housing to be placed over at least a portion of a hinge. The first absorption element entirely disposed within the housing such that the first absorption element is positioned to engage a portion of a hinge when the housing is placed over the portion of the hinge.

One aspect is an overmolded hinge device having a first and a second shaft, each having first and second ends. A first friction element is mounted on the first shaft. A first molded housing is at least partially enclosing the first shaft and a second molded housing is at least partially enclosing the second shaft. A first molded outer link is at least partially enclosing each of the first and second shafts and a second molded outer link is at least partially enclosing each of the first and second shafts. One of the first molded housing and the first molded outer link enclose the first friction element

One aspect is an overmolded hinge device having a first and a second shaft, each having first and second ends. A first friction element is mounted on the first shaft. A first molded housing is at least partially enclosing the first shaft and a second molded housing is at least partially enclosing the second shaft. A first molded outer link is at least partially enclosing each of the first and second shafts and a second molded outer link is at least partially enclosing each of the first and second shafts. One of the first molded housing and the first molded outer link enclose the first friction element

A device for lubricating a hinge includes a housing, a first elongated opening, a lubrication opening, a lubrication collection chamber, and an absorption element. The first elongated opening allows the housing to be placed over a portion of a hinge. The lubrication opening is for receiving a lubrication straw. The lubrication collection chamber is located at a bottom of the housing, and the absorption element is located within the lubrication collection chamber.

A device for lubricating a hinge includes a housing, a first elongated opening, a lubrication opening, a lubrication collection chamber, and an absorption element. The first elongated opening allows the housing to be placed over a portion of a hinge. The lubrication opening is for receiving a lubrication straw. The lubrication collection chamber is located at a bottom of the housing, and the absorption element is located within the lubrication collection chamber.