US 12,342,724 B2
Vibration panel and drive method therefor, and haptic feedback device
Dexing Qi, Beijing (CN); Yuju Chen, Beijing (CN); Hui Hua, Beijing (CN); and Yingzi Wang, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/006,458
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jan. 29, 2022, PCT No. PCT/CN2022/074982
§ 371(c)(1), (2) Date Jan. 23, 2023,
PCT Pub. No. WO2023/142038, PCT Pub. Date Aug. 3, 2023.
Prior Publication US 2024/0260474 A1, Aug. 1, 2024
Int. Cl. G06F 3/041 (2006.01); G06F 3/01 (2006.01); H10N 30/20 (2023.01); H10N 30/88 (2023.01)
CPC H10N 30/20 (2023.02) [G06F 3/016 (2013.01); G06F 3/041 (2013.01); H10N 30/88 (2023.02)] 19 Claims
OG exemplary drawing
 
1. A vibration panel, comprising:
a substrate;
a piezoelectric sensor on a side of the substrate, wherein the piezoelectric sensor driven by an excitation signal is configured to vibrate, and to drive the substrate to vibrate; and
a regulation structure configured to regulate a characteristic frequency of the substrate, so as to make a resonant frequency of the substrate satisfy a preset range; wherein the regulation structure comprises a support layer fixedly connected to the substrate;
wherein the support layer and the piezoelectric sensor are located on a same side of the substrate; and the support layer comprises: a first support portion, located in a peripheral area of the substrate and arranged around the piezoelectric sensor.