Earth Mountain almost there, page-5

New patent applied 4/4. Here is the summary:


The invention discloses a pixel sounding unit, a manufacturing method thereof, and a digital sounding chip, which are applied in the technical field of digital sounding chips to solve the problem of low operating frequency of a loudspeaker diaphragm. The pixel sound unit includes a vibrating plate, an electrode plate, and an air back cavity. The vibrating plate is divided into a plurality of sub-vibration areas, and each sub-vibration area is respectively etched with a sub-diaphragm. The vibrating plate, the electrode plate, and the air back cavity are arranged in sequence. Multiple sub-vibration areas share an electrode plate and an air rear chamber. The digital sounding chip includes the pixel sounding unit mentioned in the above solution. The manufacturing method of the pixel sounding unit adopts the pixel sounding unit mentioned in the above solution.