US 11,789,557 B2
Touchpad and electronic device
Rong Zhang, Guangdong (CN); Zhongbo Luo, Guangdong (CN); Xiaoxia Yan, Guangdong (CN); and Xu Lu, Guangdong (CN)
Assigned to SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by Shenzhen Goodix Technology Co., Ltd., Guangdong (CN)
Filed on Sep. 23, 2021, as Appl. No. 17/483,735.
Application 17/483,735 is a continuation of application No. PCT/CN2021/076103, filed on Feb. 8, 2021.
Claims priority of application No. PCT/CN2021/070375 (WO), filed on Jan. 5, 2021.
Prior Publication US 2022/0214790 A1, Jul. 7, 2022
Int. Cl. G06F 3/041 (2006.01); G06F 3/01 (2006.01)
CPC G06F 3/04144 (2019.05) [G06F 3/016 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A touchpad comprising:
a touch panel;
a plurality of pressure sensors fixed to an elastic bracket and configured to detect pressure applied on the touch panel;
a piezoelectric ceramic assembly comprising a piezoelectric ceramic plate configured to provide vibration feedback to a user, wherein the piezoelectric ceramic assembly is fixed below the touch panel in a suspended manner and spaced from the elastic bracket, such that the piezoelectric ceramic assembly is not supported underneath and a gap exists between the piezoelectric ceramic assembly and the touch panel; and
wherein the elastic bracket defines a first groove, a top portion of each of two side walls of the first groove is fixed below the touch panel, and the plurality of pressure sensors are fixed to a bottom wall of the first groove.