Display screen assembly and electronic device

By designing the adhesive layer between the piezoelectric element and the display screen, and using bonding areas with different Young's moduli, the problem of vibration mode mismatch was solved, resulting in better connection stability and greater amplitude, thus improving sound quality and sound range.

CN122201119APending Publication Date: 2026-06-12GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
Filing Date
2024-12-12
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In the prior art, the connection between the piezoelectric element and the display screen leads to a mismatch in vibration modes, affecting the sound quality, and the uniform rigidity of the adhesive layer causes unstable connection or detachment.

Method used

The adhesive layer design includes at least two bonding areas with unequal Young's moduli. The area with the larger Young's modulus ensures the connection strength, while the area with the smaller Young's modulus allows for greater deformation, matching the vibration modes of the piezoelectric element to achieve a stable connection and greater amplitude.

Benefits of technology

It improves the sound quality and connection stability of the display screen, achieves a wider sound range and a flatter sound curve, and avoids the back-phase phenomenon.

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Abstract

The embodiment of the present application provides a display screen assembly, which comprises a display screen, a viscose layer and a piezoelectric element, the display screen comprises a display surface and a back light surface opposite to the display surface, the viscose layer is arranged on the back light surface, the viscose layer comprises at least two adhesive areas, and Young's modulus of the at least two adhesive areas is not equal. The piezoelectric element is attached to the surface of the viscose layer away from the back light surface. Since Young's modulus of each adhesive area is not equal, the connection strength between the display screen and the piezoelectric element bonded by the adhesive area with large Young's modulus is large, the connection stability between the display screen and the piezoelectric element can be ensured, the display screen and the piezoelectric element bonded by the adhesive area with small Young's modulus can have a larger deformable amplitude, so that the display screen can have a wider amplitude, a larger sound range is realized, and sound quality is improved. Meanwhile, the embodiment of the present application further provides an electronic device.
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