US 12,228,966 B2
Apparatus and a method for a controllable foldable display with haptic and sound effect
Ming Li, Helsinki (FI); Guoping Luo, Helsinki (FI); and Pasi Pylvas, Helsinki (FI)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Appl. No. 17/759,022
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
PCT Filed Feb. 26, 2020, PCT No. PCT/EP2020/055025
§ 371(c)(1), (2) Date Jul. 18, 2022,
PCT Pub. No. WO2021/170229, PCT Pub. Date Sep. 2, 2021.
Prior Publication US 2023/0034607 A1, Feb. 2, 2023
Int. Cl. G06F 1/16 (2006.01); G06F 3/01 (2006.01); G06F 3/041 (2006.01)
CPC G06F 1/1618 (2013.01) [G06F 1/1643 (2013.01); G06F 3/016 (2013.01); G06F 3/0414 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a foldable touch display;
a motor adapted to control the foldable touch display to switch between an unfolded state and a folded state in a rolling motion;
a controller adapted to:
detect a user input;
calculate a velocity vector of the user input; and
control the motor to cause the foldable touch display to switch between the unfolded state and the folded state according to the calculated velocity vector of the user input; and
a haptic actuator adapted to generate a haptic feedback to the user input during the rolling motion, wherein the haptic feedback follows a dynamic haptic pattern defined by a set of amplitude and frequency values, wherein the dynamic haptic pattern is determined according to the calculated velocity vector of the user input in a manner that time domain durations of pauses of the dynamic haptic pattern correspond to speed values of the calculated velocity vector respectively,
wherein the controller is adapted to adjust a corresponding dynamic duty cycle of the motor based on the set of amplitude and frequency values of the dynamic haptic pattern, thereby changing a speed of the rolling motion of the foldable touch display according to the user input, and
wherein a plurality of gears and a gear shaft are coupled to the motor, and the plurality of gears and the gear shaft are actuated by the motor to induce a bidirectional movement of the foldable touch display.