Abstract: An electronic device includes the foldable screen and a controller. The foldable screen includes a light-transmitting cover plate and a display panel that are stacked. The display panel includes a display region and a non-display region surrounded by the display region, and a light-shielding layer is arranged between the light-transmitting cover plate and the display panel. The foldable screen is foldable between a first state and a second state. When the foldable screen is in the first state, an orthographic projection of the light-shielding layer on the display panel overlaps with the non-display region and does not overlap with the display region. When the foldable screen is in the second state, the controller is configured to control a first part in the display region adjacent to and surrounding the non-display region to be in a black screen state.

Abstract: This application provides a Bluetooth positioning device detection method, a device, and a storage medium. The method includes: recording first location information, where a set of the first location information is used as a first track, and the first track is a moving track of a first electronic device; recording second location information when a preset trigger condition is met, where a set of the second location information is used as a second track, and the second track is used to represent a moving track of a Bluetooth positioning device; calculating a similarity between the first track and the second track in a preset time period; and determining that the first electronic device is tracked by the Bluetooth positioning device if the track similarity is greater than a preset similarity threshold.

Abstract: A rotating shaft mechanism includes a shaft cover and first rotating arms disposed on both sides of the shaft cover. A second rotating arm is disposed between the first rotating arm and the shaft cover, and the first rotating arm is slidably connected to the second rotating arm, such that the first rotating arm and the shaft cover form a rotational connection. The second rotating arm includes a connection portion and a slider. The slider separately has a second distance and a third distance from two end faces of the connection portion in a direction of the rotating shaft. The first rotating arm includes a chute, and the chute is slidably connected to the slider, such that the chute overlaps the second rotating arm. The chute extends for a fourth distance in a direction close to the rotating shaft.

Abstract: An electronic device includes a housing and a circuit board assembly. The housing includes a bottom wall, a side wall, and a rear cover that enclose an accommodating space. The circuit board assembly is arranged in the accommodating space and includes a first circuit board, a second circuit board, a first elastic piece and a connector assembly. The first circuit board includes a first surface and a second surface, and is provided with an avoidance opening. The first elastic piece is arranged on the first surface. The second circuit board is at least partially arranged on the second surface in a stacking manner. The connector assembly is arranged on the second circuit board, and is at least partially located in the avoidance opening. A height of the connector assembly is greater than a height of the first elastic piece.

Abstract: This application provides a rotating shaft assembly and a terminal device. The rotating shaft assembly includes a base and a swing arm, the base includes a first portion and a second portion that are fixedly connected, and a first sliding groove is formed between the first portion and the second portion. The swing arm includes a rotating part and a swinging part, and the rotating part is slidably connected to the first sliding groove. When the rotating part slides relative to the first sliding groove, the swinging part rotates relative to the base. The rotating part includes at least one first surface and at least one second surface, along a rotation axis of the swinging part, at least a portion of the first surface and at least a portion of the second surface are staggered.

Abstract: This application relates to a rotating assembly, a foldable mechanism, and a foldable terminal, and relates to the field of terminal technologies. The rotating assembly includes a base, a rotating shaft, and a swing arm, where the base is provided with a rotating shaft through-hole and an arc-shaped first slideway, the first slideway and the rotating shaft through-hole communicate with each other, and axes thereof are parallel to each other; the rotating shaft is provided with an arc-shaped second slideway, an axis of the rotating shaft is parallel to an axis of the second slideway, the second slideway runs through the rotating shaft, and a radius of the second slideway is equal to that of the first slideway; the rotating shaft is located in the rotating shaft through-hole, the first slideway and the second slideway can be connected to each other to form a continuous slideway, and the swing arm is located in the continuous slideway and can slide in the continuous slideway.

Abstract: This application provides a device tracking detection method and an electronic device, and is related to the field of terminal technologies. Because when the first electronic device receives a first Bluetooth signal based on a first signal filter, it implies that a first Bluetooth peripheral is near the first electronic device; and because the first Bluetooth peripheral broadcasts the first Bluetooth signal only once every other second duration, it also implies that the first Bluetooth peripheral may be near the first electronic device within the second duration during which the first Bluetooth signal is received based on the first signal filter. Therefore, when a moving speed is greater than a preset speed threshold, recorded trajectory information of the first Bluetooth peripheral includes not only location information of the first electronic device when receiving the first Bluetooth signal, but also location information of the first electronic device within the second duration.

Abstract: The present invention provides a preparation method for a drug linker conjugate. The present invention further provides a preparation method for an intermediate or a salt thereof, and a use of an intermediate or a salt thereof. The raw materials involved in the preparation method of the present invention are easily obtained, the operation is simple, the purity of a product is high, and the present invention is suitable for high-volume synthesis.

Abstract: This application provides a folding assembly, a folding apparatus, and a terminal device. The folding assembly includes a base, a support member, and at least two swing arms. Each swing arm is provided with a first push part and a second push part. The first push part and the second push part are arranged in sequence in a direction of a rotation axis of the swing arm. During rotation of the swing arm from the unfolded position to the folded position, the first push part is driven to rotate to push the support member to move toward the base. During rotation of the swing arm from the folded position to the unfolded position, the second push part is driven to rotate to push the support member to move away from the base.

Abstract: Embodiments of this application disclose a folding mechanism and a mobile terminal. The folding mechanism includes a bracket and two support assemblies, with the two support assemblies respectively located on two sides of the bracket in a width direction. The support assembly includes a first support, a second support, and a swing arm, with the second support and the swing arm located on a same side of the first support. Because the second support and the first support are slidably connected rather than pivotally connected, the second support and the first support can be considered as one telescopic rod as a whole. Therefore, the bracket, the second support, the first support, and the swing arm form an equivalent three-rod linkage mechanism. In comparison with the related art, one linkage rod is saved, shortening a tolerance chain, which helps reducing a total tolerance of the folding mechanism.

Abstract: Disclosed are a synchronization mechanism and a foldable terminal. In the synchronization mechanism, a first rotating component and a second rotating component are in transmission connection by using a first worm, a worm gear, and a second worm that are sequentially meshed, thereby implementing the synchronous rotation of the first rotating component and the second rotating component relative to a base. In addition, when the synchronization mechanism is applied to the foldable terminal, since an axial direction of the worm gear and a radial direction of the first worm and the second worm are consistent with a thickness direction of the body, and an axial size of the worm gear and radial sizes of the first worm and the second worm are relatively small, which is conducive to the light and thin design of the foldable terminal.

Abstract: A decorating structure is configured to be mounted to the housing plate of the electronic device, and the housing plate has an outer plate surface and an inner plate surface opposite to each other. The housing plate is provided with a mounting plate hole extending through the outer plate surface and the inner plate surface. The decorating structure includes a base member and an exterior decorating member. The base member includes a base plate and a ring rim connected to a periphery of the base plate. The exterior decorating member includes a main body, and the main body includes a middle portion and an outer ring portion located on an outer ring of the middle portion. The middle portion and the base plate are connected to each other at the mounting plate hole.

Abstract: Manganese-doped hollow mesoporous silica nanoparticles loaded with curcumin and an application in periodontal bone tissue repair are provided in the present disclosure, belonging to the technical field of targeted delivery of nanoparticles and bone tissue regeneration. In the present disclosure, alendronate is grafted on the surface of silica nanoparticles to achieve bone targeting, manganese is doped on the nanoparticles by a chemical method, and curcumin is wrapped in the nanoparticles.

Abstract: A screen module uses a bendable display panel including a first panel layer and a second panel layer. A support layer is located between the first panel layer and the second panel layer. The first panel layer and the second panel layer are connected by a bent region, and a thickness of the support layer close to the bent region is greater than a thickness of a first region of the support layer. A projection of the first region of the support layer on the first panel layer overlaps with a projection of a display driver chip on the first panel layer. After being stacked, the thickness of the screen module may be reduced to meet the user's requirement for a small thickness of an electronic device.

Abstract: Manganese-doped hollow mesoporous silica nanoparticles loaded with curcumin and an application in periodontal bone tissue repair are provided in the present disclosure, belonging to the technical field of targeted delivery of nanoparticles and bone tissue regeneration. In the present disclosure, alendronate is grafted on the surface of silica nanoparticles to achieve bone targeting, manganese is doped on the nanoparticles by a chemical method, and curcumin is wrapped in the nanoparticles.

Abstract: A vibration motor is used for a terminal device. The terminal device is provided with a middle frame having a first avoiding hole. The vibration motor includes a housing. The housing is provided with an accommodating space inside. The housing includes a first wall plate. The first wall plate is provided with a first protruding portion that protrudes outwards. The first protruding portion is hollow inside so that a first accommodating compartment is formed. The first accommodating compartment communicates with the accommodating space. When the vibration motor is mounted on the middle frame, an outer surface of the first wall plate faces the middle frame and the first protruding portion is accommodated in the first avoiding hole.

Abstract: A foldable mechanism comprises a base assembly, two support assemblies, and two driving assemblies. The base assembly includes a bottom seat and two hinge seats respectively fixed to two sides of the bottom seat. The support assembly includes an outer plate member and an inner plate member located between the two outer plate members, the outer plate member and the inner plate member are pivotally connected to the corresponding hinge seat respectively, and pivotal axes of the outer plate members and the inner plate members are parallel to a central axis L of the bottom seat; the driving assembly is connected to and between the bottom seat and the inner plate member corresponding to the driving assembly; and when the foldable mechanism is in a folded state, the driving assemblies respectively drive the corresponding inner plate members to flip toward the bottom seat. Related mobile terminal is also described.

Abstract: This application provides an electronic device. An opening is disposed on a support plate of a middle frame, and a camera module is mounted corresponding to the opening. At least a part of the thickness of the dimming conversion assembly of the camera module extends into the opening, the part of the thickness of the dimming conversion assembly does not occupy a mounting space between the middle frame and a rear cover (a display panel), and a thickness of the whole machine can be reduced, thereby facilitating lightening and thinning of the electronic device. The inner concave portion is disposed on at least a part of an area of a circumferential edge of the dimming conversion assembly, and the edge of the inner concave portion contracts in the edge of the lens assembly.

Abstract: A camera assembly includes a first camera module, a second camera module, and a camera support, where the camera support includes a first body and a second body, the first body and the second body are arranged side by side, the first body includes a first accommodating space, and the second body includes a second accommodating space. The first camera module is accommodated in the first accommodating space, and the second camera module is accommodated in the second accommodating space. The first camera module and the second camera module are separated by a gap or a common side wall of the first accommodating space and the second accommodating space.