A display device includes a display module including a first non-folding region, a second non-folding region, and a folding region disposed between the first and second non-folding regions, a first body disposed on the first non-folding region, a second body disposed on the second non-folding region, a plurality of rotation pin units connected to the first and second bodies to provide a biaxial rotation axis, which is overlapped with the folding region, to the first and second bodies, and a plurality of gears which rotate in conjunction with the rotation pin units. The plurality of gears is disposed on the rotation pin units.

An angle determining circuit and method, and a folding screen terminal are provided. The circuit is applied to the folding screen terminal which includes a first and second screens rotatably connected through a rotary shaft, a resistance ring is fixedly provided outside the rotary shaft. The circuit includes: a first power supply; a first resistor, where one terminal of the first resistor is electrically connected to the first power supply; a first conductive element fixedly disposed at the first screen, where one terminal of the first conductive element is electrically connected to the other terminal of the first resistor, and the other terminal thereof slidably abuts against the resistance ring; a second conductive element fixedly disposed at the second screen, where one terminal of the second conductive element slidably abuts against the resistance ring, and the other terminal thereof is grounded; and a processor.

A display module including non-folding portions and a folding portion disposed between the non-folding portions; a first supporting member disposed under the display module; and a second supporting member disposed between the display module and the first supporting member, wherein the first supporting member may include: a first supporter and a second supporter overlapping with the non-folding portions; and an adhesive member attaching the display module to the second supporting member.

A rotating shaft mechanism (10) is provided, including a main bracket (1) and at least one rotating assembly (2). Each rotating assembly can rotate relative to the main bracket. The rotating assembly includes a rotating member (21), a middle frame (22), and a sliding member (23). The rotating member can be rotatably connected to the main bracket about the first rotation center, and the other end of the rotating member can be rotatably connected to the middle frame about the third rotation center. One end of the sliding member is hinged to the main bracket, and the sliding member can rotate relative to the main bracket about the second rotation center. The other end of the sliding member slidably coordinates with the middle frame, so that the middle frame is away from or close to the second rotation center along an extension direction of the sliding member.

An apparatus and/or method for displaying a multi-window on a foldable electronic device may be provided. The electronic device may include a display device having a display area having a shape that varies depending on first and second housing structures connected to a hinge structure, and a processor operatively connected to the display device, in which the processor may divide a first type display area into a plurality of areas and display information related to a plurality of applications when the electronic device is in an unfolded state, the processor may check at least one application set to be continuously used among the plurality of applications when the electronic device switches to a folded state, and the processor may set up a screen constitution in the folded state based on the at least one application and output information related to the at least one application through a second type display area based on the screen constitution. Other embodiments may also be possible.

Disclosed is an electronic device. The electronic device includes a cover having a front surface defining one surface of the electronic device and a rear surface that is an opposite surface to the front surface, the front surface of the cover includes an upper surface, a lower surface, and an inclined surface extending from a periphery of the upper surface to a periphery of the lower surface toward the rear surface, the cover includes at least one protrusion at least partially formed at the periphery of the upper surface by partially recessing the upper surface in a direction that faces the rear surface, the inclined surface includes a first inclined surface extending substantially flat from the at least one protrusion to a first section of the periphery of the lower surface. Other various embodiments recognized through the specification are possible.

This application provides Fe—Mn—Al—C lightweight steel, including: Fe, wherein a weight percentage of the Fe is greater than or equal to 50.4 wt %; Mn, wherein a weight percentage of the Mn is 25-35 wt %; Al, wherein a weight percentage of the Al is 6-12 wt %; C, wherein a weight percentage of the C is 0.8-2.0 wt %; and O, wherein a weight percentage of the O is 0.005-0.6 wt %. This application further provides a terminal to which the Fe—Mn—Al—C lightweight steel is applied, a production method for the Fe—Mn—Al—C lightweight steel, a steel mechanical part, and an electronic device. The lightweight steel in this application has low density, high strength, and high elongation.

An electronic device is provided. The electronic device includes a housing including a first housing and a second housing connected to the first housing by a hinge structure to be rotatable around a first axis, a magnet structure disposed inside the housing, the magnet structure including a magnet and a conductive coating member for enclosing a surface of the magnet, and a wireless communication circuit electrically connected to the conductive coating member, wherein the magnet is disposed to maintain a folding state in which the first housing and the second housing are folded, and the wireless communication circuit is configured to feed a portion of the conductive coating member of the magnet structure to transmit and/or receive a signal in a designated first frequency band by using at least one of the conductive coating member as a first antenna radiator.

An electronic device includes a first housing including a first face, and a second face opposite the first face; a second housing including a third face, and a fourth face opposite the third face; a hinge connecting the first housing and the second house, wherein the second housing folds about the hinge to face the first housing; a flexible display extending from the first face to the third face; a sensor circuit configured to sense an angle formed by the first housing and the second housing folding at the hinge; and a processor operatively connected to the flexible display and the sensor circuit. The processor is configured to detect a physical state of the first housing and the second housing based on the sensor circuit, and re-execute a currently executed application, when the detected physical state changes.

According to an embodiment, it is possible to provide an electronic device including: a housing; a first printed circuit board disposed in the housing; a second printed circuit board disposed in the housing and spaced apart from the first printed circuit board; a first flexible printed circuit board electrically connecting the first printed circuit board and the second printed circuit board; and a second flexible printed circuit board electrically connecting the first printed circuit board and the second printed circuit board, in which the second flexible printed circuit board may be longer than the first flexible printed circuit board. Other embodiments are also disclosed.