Abstract:
A power tube connection structure includes a substrate, a printed circuit board, and a power tube, where a through groove allowing the power tube to pass through is cut into the printed circuit board, a mounting groove is cut into the upper surface of the substrate at a location corresponding to the through groove, one end of the power tube extends through the through groove, and is welded onto a bottom face of the mounting groove, the end of the power tube that extends into the mounting groove abuts onto a side wall of the mounting groove close to an output end of the power amplifier, and a solder flux escape channel is made into the side wall of the mounting groove close to the output end of the power amplifier.
Abstract:
Embodiments of the present disclosure relate to the field of electronics and, in particular, to a multi-layer printed circuit board and a method for fabricating the same. The circuit board is able to avoid the problem that signal transmission performance is affected by a plated hole. The multi-layer printed circuit board includes at least two layers of core plates that are adhered, where a circuit mechanical part is disposed on the core plates, a via is also provided on the core plates, and a metal column is embedded in the via, where one end of the metal column is connected to a corresponding position on an antenna feeder circuit mechanical part disposed on the core plate, and the other end is connected to a corresponding position on an antenna feeder circuit mechanical part disposed on an adjacent layer of the core plate. The method is used for fabricating a multi-layer printed circuit board.
Abstract:
Embodiments of the present disclosure relate to the field of electronics and, in particular, to a multi-layer printed circuit board and a method for fabricating the same. The circuit board is able to avoid the problem that signal transmission performance is affected by a plated hole. The multi-layer printed circuit board includes at least two layers of core plates that are adhered, where a circuit mechanical part is disposed on the core plates, a via is also provided on the core plates, and a metal column is embedded in the via, where one end of the metal column is connected to a corresponding position on an antenna feeder circuit mechanical part disposed on the core plate, and the other end is connected to a corresponding position on an antenna feeder circuit mechanical part disposed on an adjacent layer of the core plate. The method is used for fabricating a multi-layer printed circuit board.
Abstract:
A near-eye display and a near-eye display system are provided. The near-eye display includes a display panel, a collimation lens component, and an optical redirector. The display panel includes a plurality of pixels that are disposed in a tiling manner. The collimation lens component includes a plurality of collimation lenses, and the plurality of collimation lenses are in a one-to-one correspondence with the plurality of pixels. Each of the plurality of collimation lenses is configured to: convert, into collimated light, light emitted by a corresponding pixel, and input the collimated light into the optical redirector. The optical redirector includes a plurality of light convergence structures, and the plurality of light convergence structures are in a one-to-one correspondence with the plurality of collimation lenses. Each of the plurality of light convergence structures is configured to converge, on a focus of the near-eye display, collimated light input by a corresponding collimation lens.
Abstract:
A power tube connection structure includes a substrate, a printed circuit board, and a power tube, where a through groove allowing the power tube to pass through is cut into the printed circuit board, a mounting groove is cut into the upper surface of the substrate at a location corresponding to the through groove, one end of the power tube extends through the through groove, and is welded onto a bottom face of the mounting groove, the end of the power tube that extends into the mounting groove abuts onto a side wall of the mounting groove close to an output end of the power amplifier, and a solder flux escape channel is made into the side wall of the mounting groove close to the output end of the power amplifier.
Abstract:
A method for managing a task on a terminal device and the terminal device are provided. The method for managing a task on a terminal device may include: monitoring whether a first application on the terminal device is running, and monitoring a user's action of operating a desktop of the terminal device; and displaying, on the desktop of the terminal device, a running-state icon corresponding to the first application if it is detected that the first application is running, and disabling the first application if it is detected that the first application is running and the detected user action meets a preset disabling condition corresponding to the first application; or displaying, on the desktop of the terminal device, a disabled-state icon corresponding to the first application if it is detected that the first application is in a disabled state.
Abstract:
A thermal interface pad, includes a substrate and carbon nanowires, where the substrate has a first surface and a second surface opposite to the first surface, the carbon nanowires are disposed on both the first surface and the second surface of the substrate, and the carbon nanowires are arranged in an array. The substrate includes a flexible composite metal film, or a material of the substrate includes at least one of flexible graphite and a solder alloy, and the flexible composite metal film is a flexible metal film with a surface coated with nickel, silver or gold. The thermal interface material has high thermal conductivity, may be attachable and affixed, and is easy for industrial production and use. The embodiments of the present invention further provide a production method of a thermal interface material, which features a large production volume, low costs, and easy control of product quality.