In some aspects, a cellular telephone includes (1) a user interface portion having a communications circuit; and (2) a cellular portion having a first communications circuit adapted to communicate with the communications circuit of the user interface portion and a second communications circuit adapted to communicate with a cellular network. The cellular portion is removably coupled to the user interface portion so as to allow a user of the cellular telephone to communicate over a cellular network by using the user interface portion while the cellular portion is separated from the user interface portion. Numerous other aspects are provided.

A computing system includes a base processing device, as well as a display device having a screen. In an attached mode, the base processing device is mechanically attached to the base processing device, and is to display a user interface on the display device using a mechanical data connection between the base processing device and the display device. In a detached mode, the base processing device is mechanically detached from the display device, and is to render the user interface and transmit the rendered user interface to the display device over a wireless data connection between the base processing device and the display device. The display device is to receive and responsively display the rendered user interface.

A holder for holding a mobile electronic device to an object, the holder having two first openings, a first communication path, two second openings, and a second communication path. The two first openings form a first set of openings. The first communication path connects the first openings so a securing device can be fed into one of the first openings and out of the other of the first openings. The two second openings form a second set of openings. The second communication path connects the second openings so that the securing device can be fed into one of the second openings and out of the other of the second openings. The first openings are spaced apart from the second openings so the securing device can be secured to the holder at the first and second sets of openings, and additionally wrapped around the object to secure the holder thereto.

A mobile phone includes a master machine and a slave machine. The master machine includes a first power source unit; the slave machine includes a second power source unit, a display screen, a main board and a fingerprint identification assembly. The slave machine is able to be mounted to the master machine and detached from the master machine. When the slave machine is detached from the master machine, the slave machine is able to be in communication connection with the master machine. The main board is provided with a first through hole, the fingerprint identification assembly includes a connecting circuit board and an identification unit, the identification unit is able to be in communication connection with the main board through the connecting circuit board, and the identification unit is inserted into the first through hole. The present application further provides a slave machine.

In some aspects, a cellular telephone includes (1) a user interface portion having a communications circuit; and (2) a cellular portion having a first communications circuit adapted to communicate with the communications circuit of the user interface portion and a second communications circuit adapted to communicate with a cellular network. The cellular portion is removably coupled to the user interface portion so as to allow a user of the cellular telephone to communicate over a cellular network by using the user interface portion while the cellular portion is separated from the user interface portion. Numerous other aspects are provided.

An image display device having a transparent display device and an optical shutter. When the disclosed image display device is turned off or inactivated, the image display device allows a still image, which is applied by a user in a state where the still image can be replaced between the transparent display device and a front support surface of a fixed body, to pass through the optical shutter and the transparent display device maintaining a transparent state without consuming electricity and be then always displayed to the user. Further, when the disclosed image display device is turned on or activated, the image display device opacifies the optical shutter applied between the transparent display device and the still image applied by the user, so as to block exposure of the still image and allow only an activated screen of the transparent display device to be displayed to the user.

The present disclosure discloses a portable electronic device, comprising a first display panel, a second display panel and a keyboard. The second display panel is pivotally connected to the first display panel. The second display panel comprises a display screen and at least one guide magnet arranged below the display screen. The keyboard is detachably arranged above the display screen of the second display panel. The keyboard comprises at least one magnetic element. The keyboard can be controlled to move relative to the display screen along a moving direction by means of the magnetic attraction force between the at least one magnetic element and the at least one guide magnet, wherein the moving direction is perpendicular to a side edge of the second display panel pivotally connected to the first display panel.

The present invention relates to a wrist-wearable mobile terminal and a method for controlling the same. A mobile terminal according to an embodiment of the present invention comprises: a band configured to be worn around a user's wrist; a first body connected to the band; a second body formed to be attachable to or detachable from the first body; and a control unit for outputting information relating to an external device to different devices when the first body and the second body are separated from each other and when the same are coupled to each other, respectively.

Integrated but detachable mini-camera for a mobile device. The mobile device comprises a main body and a detachable mini-camera configured to attach to and detach from a socket in the main body. The detachable mini-camera may comprise at least one camera and a rechargeable battery configured to, while the detached mini-camera is attached to the main body, charge from a battery in the main body via the socket. While the detachable mini-camera is detached from the main body, a wireless transceiver in the detachable mini-camera wirelessly communicates with a wireless transceiver in the main body, and a mobile application, executed by a processor in the main body, controls the detachable mini-camera and receives image data from the detachable mini-camera via the wireless communication.

A method of using two display panels as a single screen is provided. More particularly, a structure for minimizing the size of a joint between two display panels and an algorithm for coping with a situation where a text line or a text image is located at the joint are provided. A portable display device has at least two panel housings and first and second display panels mounted on the panel housings, respectively, in which the display panels are joined to each other to form a single screen when the panel housings are unfolded. When a text line or a text image is located at the joint between the first and second display panels, a screen is shifted so that the joint is located in a space between the text lines.