Tactile feedback panel and display device

CN119731620AActive Publication Date: 2025-03-28BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202380009844.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-07-28
Publication Date
2025-03-28
Estimated Expiration
2043-07-28

AI Technical Summary

Technical Problem

The prior art is difficult to generate texture tactile feedback through large-sized screen modules such as traditional linear motors, and traditional methods have problems such as high cost and high power consumption.

Method used

The piezoelectric device using piezoelectric film or piezoelectric ceramic blocks is used to match the resonance frequency of the cover plate, and the vibration of the cover plate is stimulated, and the texture tactile change is achieved in combination with the pressure film effect, and the resonance of the cover plate is adjusted through the opening of the support layer. Frequency and vibration mode.

Benefits of technology

It realizes strong haptic feedback effect for large-size screen modules such as vehicle display modules, reduces cost and power consumption, and improves the practicality and reliability of haptic feedback.

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Abstract

The embodiment of the invention provides a tactile feedback panel and a display device. The tactile feedback panel comprises a display module; the cover plate is arranged on the light emitting side of the display module, and the size of the cover plate is larger than that of the display module; the piezoelectric devices and the display module are arranged on the same side of the cover plate, and the piezoelectric devices are at least arranged on one opposite side of the display module; the supporting layer and the piezoelectric device are arranged on the same side of the cover plate, the supporting layer is at least arranged on one side of the display module, the orthographic projection of the supporting layer on the cover plate and the orthographic projection of the piezoelectric device on the cover plate are not overlapped, and at least part of the supporting layer is provided with a plurality of openings for disconnecting the supporting layer; the back frame is provided with a containing space used for bearing the display module, and the back frame is fixedly connected with the supporting layer.
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