Abstract: A portable electronic device including a first body, a second body, a stand, and a hinge structure is provided. The stand has a first pivot part and a second pivot part opposite to the first pivot part, wherein the first pivot part is pivotally connected to the first body, and the second body is pivotally connected to the second pivot part. The hinge structure includes a first bracket secured to the second body, a second bracket secured to the second pivot part of the stand, a first movable base, a first shaft secured to the first bracket and pivoted to the first movable base, a second movable base, a second shaft secured to the first movable base and pivoted to the second movable base, and a sliding shaft fixed to the second movable base and slidably connected to the second bracket.

Abstract: A laptop computer with a detachable touchpad module includes a housing, a locking hook, and a touchpad module. The housing has a first surface and a second surface opposite to each other. The first surface is an external surface of the housing, and the second surface is an internal surface of the housing. The locking hook is freely pivoted to the housing and located at the second surface. The touchpad module has a locking hole. When the touchpad module is assembled to the first surface, the locking hole penetrates the housing and is protruded out of the second surface, and the locking hook is locked with the locking hole.

Abstract: A key structure including a base plate, a keycap, a lifting platform, an elastic body, and a reciprocating supporting member is provided. The keycap is disposed above the base plate. The lifting platform is disposed between the base plate and the keycap, and includes a first end part and a second end part opposite to the first end part. The first end part is slidably connected with the keycap, and the second end part is rotatably connected with the keycap. The elastic body is disposed between the base plate and the lifting platform, and two opposite ends of the elastic body contact the base plate and the lifting platform respectively. The reciprocating supporting member is disposed between the base plate and the lifting platform.

Abstract: A portable electronic device including a first body, a second body, a stand, and a hinge structure is provided. The stand has a first pivot part and a second pivot part opposite to the first pivot part, wherein the first pivot part is pivotally connected to the first body, and the second body is pivotally connected to the second pivot part. The hinge structure includes a first bracket secured to the second body, a second bracket secured to the second pivot part of the stand, a first movable base, a first shaft secured to the first bracket and pivoted to the first movable base, a second movable base, a second shaft secured to the first movable base and pivoted to the second movable base, and a sliding shaft fixed to the second movable base and slidably connected to the second bracket.

Abstract: An electronic device includes a host, a main display, an auxiliary display, and a hinge mechanism. The auxiliary display is located between the host and the main display and includes a sliding part and a lifting part. The sliding part is slidably connected to the host. The hinge mechanism includes a first bracket, a second bracket pivotally connected to the first bracket, and a third bracket pivotally connected to the second bracket. The first bracket is secured to the host, and the second bracket is secured to the main display. The third bracket is secured to the lifting part of the auxiliary display.

Abstract: A portable electronic device including a first body, a second body, a stand, and a hinge structure is provided. The stand has a first pivot part and a second pivot part opposite to the first pivot part, wherein the first pivot part is pivotally connected to the first body, and the second body is pivotally connected to the second pivot part. The hinge structure includes a first bracket secured to the second body, a second bracket secured to the second pivot part of the stand, a first movable base, a first shaft secured to the first bracket and pivoted to the first movable base, a second movable base, a second shaft secured to the first movable base and pivoted to the second movable base, and a sliding shaft fixed to the second movable base and slidably connected to the second bracket.

Abstract: An electronic device, including a host, a main display, an auxiliary display, and a lifting mechanism, is provided. The main display is pivoted to the host. The auxiliary display is disposed on the host. The lifting mechanism is disposed between the auxiliary display and the host. The lifting mechanism is configured to lift the auxiliary display and maintain a lifting height of the auxiliary display.

Abstract: An electronic device, including a host, a main display, an auxiliary display, and a lifting mechanism, is provided. The main display is pivoted to the host. The auxiliary display is disposed on the host. The lifting mechanism is disposed between the auxiliary display and the host. The lifting mechanism is configured to lift the auxiliary display and maintain a lifting height of the auxiliary display.

Abstract: A portable electronic device including a first body, a second body, a stand, and a hinge structure is provided. The stand has a first pivot part and a second pivot part opposite to the first pivot part, wherein the first pivot part is pivotally connected to the first body, and the second body is pivotally connected to the second pivot part. The hinge structure includes a first bracket secured to the second body, a second bracket secured to the second pivot part of the stand, a first movable base, a first shaft secured to the first bracket and pivoted to the first movable base, a second movable base, a second shaft secured to the first movable base and pivoted to the second movable base, and a sliding shaft fixed to the second movable base and slidably connected to the second bracket.

Abstract: A hinge assembly, including a rotating shaft and a pair of cams, is provided. The cams are sleeved on the rotating shaft so as to be rotatable relative to each other. The pair of cams respectively has a first flat surface and a second flat surface facing each other, and a curved surface adjacent to the first flat surface and the second flat surface. The first flat surface of one of the cams passes by the curved surface to move from one flat surface to the other flat surface of the other cam, so as to enable the pair of cams to move relatively away or closer along an axial direction of the rotating shaft. The curved surfaces of the cams are in surface contact when the first flat surface passes by the curved surface. A portable electronic device is also provided.

Abstract: An electronic device includes a host, a main display, an auxiliary display, and a hinge mechanism. The auxiliary display is located between the host and the main display and includes a sliding part and a lifting part. The sliding part is slidably connected to the host. The hinge mechanism includes a first bracket, a second bracket pivotally connected to the first bracket, and a third bracket pivotally connected to the second bracket. The first bracket is secured to the host, and the second bracket is secured to the main display. The third bracket is secured to the lifting part of the auxiliary display.

Abstract: An electronic device, including a host, a main display, an auxiliary display, and a lifting mechanism, is provided. The main display is pivoted to the host. The auxiliary display is disposed on the host. The lifting mechanism is disposed between the auxiliary display and the host. The lifting mechanism is configured to lift the auxiliary display and maintain a lifting height of the auxiliary display.

Abstract: An electronic device includes a host, a main display, an auxiliary display, and a hinge mechanism. The auxiliary display is located between the host and the main display and includes a sliding part and a lifting part. The sliding part is slidably connected to the host. The hinge mechanism includes a first bracket, a second bracket pivotally connected to the first bracket, and a third bracket pivotally connected to the second bracket. The first bracket is secured to the host, and the second bracket is secured to the main display. The third bracket is secured to the lifting part of the auxiliary display.

Abstract: A display apparatus includes a first display and a second display. The first display includes a first display body having a first side, a positioning recess located at the first side, and an engagement recess located in the positioning recess. The second display is detachably mounted at one side of the first display body, includes a second display body, a positioning protrusion, and a pendulum hook, and has a second side. The positioning protrusion is connected to the second side and has a cavity configured to accommodate the pendulum hook pivotally connected to the positioning protrusion and including an engagement protrusion. The positioning protrusion is inserted into the positioning recess. The second side contacts the first side. The engagement protrusion is configured to move out of the cavity and be engaged with the engagement recess or move away from the engagement recess and move back to the cavity.

Abstract: An electronic device, including a host, a main display, an auxiliary display, and a lifting mechanism, is provided. The main display is pivoted to the host. The auxiliary display is disposed on the host. The lifting mechanism is disposed between the auxiliary display and the host. The lifting mechanism is configured to lift the auxiliary display and maintain a lifting height of the auxiliary display.

Abstract: An electronic device, including a host, a main display, an auxiliary display, and a lifting mechanism, is provided. The main display is pivoted to the host. The auxiliary display is disposed on the host. The lifting mechanism is disposed between the auxiliary display and the host. The lifting mechanism is configured to lift the auxiliary display and maintain a lifting height of the auxiliary display.

Abstract: An electronic device, including a host, a main display, an auxiliary display, and a lifting mechanism, is provided. The main display is pivoted to the host. The auxiliary display is disposed on the host. The lifting mechanism is disposed between the auxiliary display and the host, and includes a first bracket, a positioning pin, a second bracket, and a torsional spring. The first bracket is fixed to the host. The positioning pin is retractably disposed at the first bracket. The second bracket is fixed to the auxiliary display. The second bracket is pivoted to the first bracket and has a positioning notch. The positioning pin is located outside the positioning notch or is engaged with the positioning notch. The torsional spring has a first end and a second end that are opposite. The first end is connected to the first bracket. The second end is connected to the second bracket.

Abstract: A hinge assembly, including a rotating shaft and a pair of cams, is provided. The cams are sleeved on the rotating shaft so as to be rotatable relative to each other. The pair of cams respectively has a first flat surface and a second flat surface facing each other, and a curved surface adjacent to the first flat surface and the second flat surface. The first flat surface of one of the cams passes by the curved surface to move from one flat surface to the other flat surface of the other cam, so as to enable the pair of cams to move relatively away or closer along an axial direction of the rotating shaft. The curved surfaces of the cams are in surface contact when the first flat surface passes by the curved surface. A portable electronic device is also provided.

Abstract: An electronic device includes a host, a main display, an auxiliary display, and a hinge mechanism. The auxiliary display is located between the host and the main display and includes a sliding part and a lifting part. The sliding part is slidably connected to the host. The hinge mechanism includes a first bracket, a second bracket pivotally connected to the first bracket, and a third bracket pivotally connected to the second bracket. The first bracket is secured to the host, and the second bracket is secured to the main display. The third bracket is secured to the lifting part of the auxiliary display.

Abstract: A display apparatus includes a first display and a second display. The first display includes a first display body having a first side, a positioning recess located at the first side, and an engagement recess located in the positioning recess. The second display is detachably mounted at one side of the first display body, includes a second display body, a positioning protrusion, and a pendulum hook, and has a second side. The positioning protrusion is connected to the second side and has a cavity configured to accommodate the pendulum hook pivotally connected to the positioning protrusion and including an engagement protrusion. The positioning protrusion is inserted into the positioning recess. The second side contacts the first side. The engagement protrusion is configured to move out of the cavity and be engaged with the engagement recess or move away from the engagement recess and move back to the cavity.