Abstract: A high-nickel ternary core-shell precursor for a lithium battery, a positive electrode material and a preparation method therefor. The chemical structural formula of the precursor is zNi(C4H7N2O2)2—Nix-zM1yM21-x-y(OH)2, wherein M1 and M2 are two of cobalt, aluminum, and manganese. The preparation method comprises: pumping a prepared metal salt solution, a dimethylglyoxime-ammonia water composite solution, and an ammonia water solution into a reaction kettle, maintaining the pH of a reaction system, and controlling the reaction time to obtain a sphere-like precursor inner core with a structural formula of Ni(C4H7N2O2)2; pumping the metal salt solution and the ammonia water solution, stopping pumping the dimethylglyoxime-ammonia water composite solution, pumping a sodium hydroxide solution to obtain a sphere-like core-shell precursor, washing, drying, sieving and deironing the precursor, mixing with a lithium source, and calcining to prepare the positive electrode material.

Abstract: A sound generator provided in the present disclosure includes a frame, a magnetic circuit unit, and a first vibration unit and a second vibration unit arranged on two sides of the magnetic circuit unit. The magnetic circuit unit includes a first central magnetic yoke in the middle, a central magnet fixed to the first central magnetic yoke, a magnetic component arranged around the central magnet and fixed to the frame, and a connecting portion connecting the first central magnetic yoke to the magnetic component. The central magnet includes a first magnet portion fixed to the first central magnetic yoke and a second magnet portion fixed to the side of the first magnet portion away from the first central magnetic yoke, a projection area of the first magnet portion along a vibrating direction is greater than a projection area of the second magnet portion along the vibrating direction.

Abstract: The present disclosure discloses a sound device includes a frame, a magnet system, and a first vibration system and a second vibration system arranged on two sides of a magnet system. The magnet system includes a first central yoke, a central magnet mounted on the first central yoke, a side yoke surrounding the central magnet and fixed to the frame, and a connection portion connecting the first central yoke and the side yoke. The side yoke includes a first side yoke fixed to the frame and a second side yoke bending and extending from an edge of the first side yoke towards the central magnet; the connection portion connects the first central yoke and the second side yoke. The sound device in the present disclosure has higher magnetic ability and miniaturization ability.

Abstract: A display module and an electronic device are provided. The display module includes a display and a support. The display includes a first non-bending region, a bending region, and a second non-bending region. The support is fastened to a non-display side of the display. The support includes a first metal plate, a third metal plate, a second metal plate, and a first buffer. The first metal plate is disposed facing the first non-bending region. The second metal plate is disposed facing the second non-bending region. The third metal plate is disposed facing the bending region, and the third metal plate can be bent. The first buffer is located between the first metal plate and the second metal plate.

Abstract: Example embodiments of the present disclosure provide a screen sensitive information processing method and apparatus. The method includes monitoring whether light intensity detected by a light sensor increases to a first threshold, and when it is monitored that the light intensity increases to the first threshold, identifying an area where predefined sensitive information in display content of a screen is located, and masking content displayed in the area where the sensitive information is located. The example embodiments of the present disclosure improve security of information reading for users.

Abstract: Example embodiments of the present disclosure provide a screen sensitive information processing method and apparatus. The method includes monitoring whether light intensity detected by a light sensor increases to a first threshold, and when it is monitored that the light intensity increases to the first threshold, identifying an area where predefined sensitive information in display content of a screen is located, and masking content displayed in the area where the sensitive information is located. The example embodiments of the present disclosure improve security of information reading for users.