An electronic device having a flexible display is provided. The electronic device includes a first housing, a second housing slidably coupled to a side of the first housing, a flexible display including a first area mounted on the first housing and a second area extending from the first area, a gear structure disposed within the first housing, and a mounting member rotatably coupled to the first housing and mounted on or separated from at least a portion of the human body, wherein the flexible display may be rotated and rolled according to rotation of the gear structure in a state in which the first area is exposed to the outside, thereby exposing at least a portion of the second area to the outside.

According to one embodiment, a display device includes a first substrate, a second substrate, a display area, at least one first sensor electrode, a second sensor electrode and a detection circuit. The second substrate is opposed to the first substrate. The display area displays an image. The first sensor electrode is disposed in a peripheral area surrounding the display area. The second sensor electrode is disposed at a position overlapping the first sensor electrode in planar view. The detection circuit is electrically connected to the first sensor electrode. The second sensor electrode is set to a state of being electrically connected to nothing or a state of being biased by resistance of 50 kΩ or greater. The second sensor electrode is larger in area than the first sensor electrode.

A wearable computing device is provided. The wearable computing device includes a housing and a rechargeable battery disposed within a cavity defined by the housing. The wearable computing device further includes a charging system disposed within the cavity. The charging system includes an alternating current (AC) generator configured to generate alternating current power. The charging system includes a rectifier circuit electrically coupled to a stator of the AC generator. The rectifier circuit is configured to convert AC power to direct current (DC) power. The charging system includes an energy storage device electrically coupled to the rectifier circuit such that the energy storage device is charged with the DC power. The charging system includes a solid state switch configured to selectively couple the energy storage device to the rechargeable battery to transfer charge from the energy storage device to the rechargeable battery.

A wearable electronic device is provided. The wearable electronic device includes at least one first thermistor arranged in different heat generation positions in the wearable electronic device and configured to detect a temperature change of internal elements of the wearable electronic device, a temperature sensor configured to calculate a body temperature of a user based on the temperature change of the internal elements and a skin temperature trend of the user, and at least one processor configured to determine whether an internal temperature by the internal elements in the wearable electronic device is within a reference temperature range that does not have an influence on a calculation of the body temperature, based on a measured value of the at least one first thermistor, determine a user state index (UI) indicating whether the user is in a state in which the body temperature is measurable, when the internal temperature is determined to be within the reference temperature range, and measure the body temperature by adjusting a body temperature measurement period based on the UI.

A magnetic levitation device for levitating a marker or suspending the marker away from the device having a housing having an outer portion and a lower portion. The device has an electromagnetic configuration positioned on disc and the disc can move or rotate the marker at a constant or variable speed. The rotating disc is configured with the electromagnetic configuration and a gear assembly.

A magnetic levitation device for levitating a marker or suspending the marker away from the device having a housing having an outer portion and a lower portion. The device has an electromagnetic configuration positioned on disc and the disc can move or rotate the marker at a constant or variable speed. The rotating disc is configured with the electromagnetic configuration and a gear assembly.

An electronic timepiece has a case; an annular antenna housed in the case; a time display unit that is disposed on the inside of the antenna, and includes a dial and hands that rotate on a center pivot; and a battery compartment housing a storage battery that feeds the antenna. The antenna is not superimposed with the storage battery held in the battery compartment when seen from the direction perpendicular to the dial.

An electronic timepiece has a case; an annular antenna housed in the case; a time display unit that is disposed on the inside of the antenna, and includes a dial and hands that rotate on a center pivot; and a battery compartment housing a storage battery that feeds the antenna. The antenna is not superimposed with the storage battery held in the battery compartment when seen from the direction perpendicular to the dial.

A support assembly includes a left support frame, a right support frame, and a bracket. The left support frame and the right support frame are both slidably connected to the bracket. The bracket defines receiving grooves. The left support frame includes a first tooth portion. The right support frame includes a second tooth portion. When the support assembly is in a folded state, teeth of the first tooth portion and teeth of the second tooth portion are received in the receiving grooves to support the screen assembly in a retracted state; when the support assembly is in an unfolded state, the teeth of the first tooth portion and the teeth of the second tooth portion extend out of the receiving grooves to support the screen assembly in an extension state. A dial plate and a smart bracelet are further provided.

A support assembly includes a left support frame, a right support frame, and a bracket. The left support frame and the right support frame are both slidably connected to the bracket. The bracket defines receiving grooves. The left support frame includes a first tooth portion. The right support frame includes a second tooth portion. When the support assembly is in a folded state, teeth of the first tooth portion and teeth of the second tooth portion are received in the receiving grooves to support the screen assembly in a retracted state; when the support assembly is in an unfolded state, the teeth of the first tooth portion and the teeth of the second tooth portion extend out of the receiving grooves to support the screen assembly in an extension state. A dial plate and a smart bracelet are further provided.