US 12,236,015 B2
Tactile feedback method, tactile feedback apparatus and touch display apparatus
Zhiming Yang, Beijing (CN); Dexing Qi, Beijing (CN); and Yingzi Wang, Beijing (CN)
Assigned to Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/016,259
Filed by Beijing BOE Technology Development Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Jan. 25, 2022, PCT No. PCT/CN2022/073855
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2023/141772, PCT Pub. Date Aug. 3, 2023.
Prior Publication US 2024/0281067 A1, Aug. 22, 2024
Int. Cl. G06F 3/01 (2006.01); G06F 3/041 (2006.01)
CPC G06F 3/016 (2013.01) [G06F 3/0416 (2013.01); G06F 2203/04105 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A tactile feedback method, applied to a tactile feedback apparatus, comprising:
determining a touch state;
selecting a fitting waveform corresponding to the touch state according to the touch state;
wherein a method for obtaining the fitting waveform comprises:
obtaining a touch simulation mechanical curve; and
obtaining the fitting waveform of an electrical signal to be provided to the tactile feedback apparatus by fitting the touch simulation mechanical curve; and
providing the electrical signal to the tactile feedback apparatus according to the fitting waveform, so as to enable the tactile feedback apparatus to vibrate;
wherein the fitting waveform comprises a boundary tactile sense waveform;
said obtaining the touch simulation mechanical curve comprises:
obtaining, according to a preset boundary model, a touch simulation positive force changing curve as the touch simulation mechanical curve; and
said obtaining the fitting waveform of the electrical signal to be provided to the tactile feedback apparatus by fitting the touch simulation mechanical curve comprises:
obtaining the boundary tactile sense waveform by fitting the touch simulation positive force changing curve.