Screen sound generating device, method, storage medium and terminal equipment

Abstract

The invention relates to the technical field of electronic equipment, and particularly provides a screen sounding device and method, a storage medium and terminal equipment. The device provided by theinvention comprises a front panel, a middle frame and a rear cover, wherein the front panel is fixed above the middle frame; the rear cover is fixed below the middle frame, a front exciter is arranged between the front panel and the middle plate, the front exciter is fixed on the center lines of two long edges of the left side or the right side of the front panel, a rear exciter is arranged between the rear cover and the middle plate, and the rear exciter is fixed on the center lines of two long edges of the rear cover. Wide frequency response and stereophonic functions are achieved through frequency division combination of the front / rear exciter, and meanwhile tactile interference brought by surface vibration of the terminal device to a user is avoided through structural optimization ofthe rear cover.

Description

technical field [0001] The invention belongs to the technical field of electronic equipment, and in particular relates to a screen sound generating device, method, storage medium and terminal equipment. Background technique [0002] The current development trend of mobile phones is that the screen ratio is getting larger and larger, and eventually develops in the direction of full screen. The earpiece hole on the front of the screen has always been an unavoidable problem in occupying the screen space. If the earpiece hole can be completely eliminated, the screen An increase in the proportion will be of great help. [0003] The principle of screen sound is to install an exciter on the back of a panel, and the exciter pushes the panel to vibrate to generate sound signals. The source of the exciter includes but is not limited to an electromagnet drive, a linear motor, or a coil-magnet drive structure. When the exciter is installed behind the panel (screen) of the mobile phone,...

AI Technical Summary

Problems solved by technology

The exciter is arranged on the middle plate and is located between the back cover and the middle plate; in the above two patent documents, a single exciter is used to drive the screen to produce sound, and there are the following main problems, which are: There is a narrow frequency band (mainly because the stiffness of the screen is relatively high, so the low-frequency response is relatively poor). The screen resonance is strong, which affects the user's experience when holding it. The stereo function cannot be realized.

[0004] The prior art also discloses a technical solution in which multiple vibration sources drive the screen to produce sound. For example, patent WO2019 / 191953A1 discloses a terminal device, including: a screen component, at least one vibration source, a device middle frame, a circuit board and a back cover; , the screen assembly is installed on the front of the middle frame of the device, the circuit board is installed on the front of the middle frame of the device and is located between the screen assembly and the middle frame of the device, and the back cover is installed on the The back of the middle frame of the device; the vibration source is installed on the back of the screen assembly, and the vibration source is used to drive the screen assembly to vibrate and make sound in a direction perpendicular to the screen assembly, but the above-mentioned patent The screen sound generating devices are all concentrated behind the screen components, which have a strong sense of shock and affect the user experience, and their stereo effect is poor, and the frequency response is narrow

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