Abstract: The present disclosure provides a method for preparing natural starch microspheres with a uniform particle size. The method includes the following steps: heating natural starch and water for gelatinization to form a water phase; controlling a temperature of a substance including a low-polarity solvent to form an oil phase; dispersing the water phase into the oil phase to obtain a mixed solution; treating the mixed solution under reduced pressure, and carrying out separation to obtain preliminarily solidified starch microspheres; and washing the preliminarily solidified starch microspheres to remove the residual oil phase on the surface, and drying to obtain the natural starch microspheres. Compared with the present technology, the method of the present disclosure can retain the molecular structure of the natural starch and has a high yield, and the prepared natural starch microspheres have a uniform particle size and can load water-soluble and fat-soluble loading objects.

Abstract: A sound box assembly for a display apparatus, includes: a housing defining a chamber therein, and a connecting part connected to the housing, and being configured to be connected with the display apparatus; and a loudspeaker arranged in the chamber of the housing, a sound-image center being disposed at a center position of the display apparatus when the loudspeaker playing sound. The loudspeaker includes a squawker arranged at a middle portion of the housing, a woofer and a tweeter. One of the woofer and the tweeter is arranged above the squawker and the other one of the woofer and the tweeter is arranged below the squawker.

Abstract: A sound box assembly for a display apparatus, includes: a housing defining a chamber therein, and a connecting part connected to the housing, and being configured to be connected with the display apparatus; and a loudspeaker arranged in the chamber of the housing, a sound-image center being disposed at a center position of the display apparatus when the loudspeaker playing sound. The loudspeaker includes a squawker arranged at a middle portion of the housing, a woofer and a tweeter. One of the woofer and the tweeter is arranged above the squawker and the other one of the woofer and the tweeter is arranged below the squawker.

Abstract: An integrated module includes: a module housing having a transmission hole; an audio input component located in the module housing; and an integrated component located in the module housing, the integrated component comprising multiple functional devices of different types; wherein the transmission hole is provided for a transmission line that establishes an electrical connection with at least one of the audio input component or the integrated component to pass through.