Tactile-feedback module and electronic device

Patent metadata

Field	Value
Publication number	US-12487679-B2
Application number	US-202418649092-A
Country	US
Kind code	B2
Filing date	Apr 29, 2024
Priority date	Mar 24, 2023
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

A tactile-feedback module and an electronic device are provided, which relates to the technical field of electronics. The tactile-feedback module includes: a touch substrate having a touch surface; an actuator element disposed at one side of the touch substrate away from the touch surface and configured to generate vibration in a first direction, wherein the first direction intersects with the touch surface; and a lever located between the actuator element and the touch substrate, wherein a power end of the lever is connected to the actuator element, a resistance end of the lever is connected to the touch substrate, in a stationary state of the actuator element, a plane where the lever is located is parallel to the touch surface, and the lever is configured to, under driving of the actuator element, drive the touch substrate to vibrate.

First claim

The invention claimed is:

1 . A tactile-feedback module, comprising:
a touch substrate having a touch surface; an actuator element disposed at one side of the touch substrate away from the touch surface and configured to generate vibration in a first direction, wherein the first direction intersects with the touch surface; a lever located between the actuator element and the touch substrate, wherein a power end of the lever is connected to the actuator element, a resistance end of the lever is connected to the touch substrate, in a stationary state of the actuator element, a plane where the lever is located is parallel to the touch surface, and the lever is configured to, under driving of the actuator element, drive the touch substrate to vibrate; a supporting base located at one side of the actuator element away from the touch substrate; and an anchoring-point portion located between the supporting base and the lever, and fixed on the supporting base, wherein a fulcrum of the lever is disposed at one side of the anchoring-point portion away from the supporting base, the actuator element is fixed on the supporting base, and the actuator element and the anchoring-point portion are separate from each other, and wherein the power end is located between the fulcrum and the resistance end, and an orthographic projection of the anchoring-point portion on the touch substrate is closer to a geometric center of the touch surface.

2 . The tactile-feedback module according to claim 1 , wherein the tactile-feedback module comprises a plurality of instances of the lever, the fulcrums of the plurality of levers are disposed on a same anchoring-point portion, and the orthographic projection of the anchoring-point portion on the touch substrate covers the geometric center.

3 . The tactile-feedback module according to claim 1 , wherein the tactile-feedback module comprises a plurality of instances of the lever, the plurality of levers are connected to a same actuator element, and the actuator element is of a first closed-loop structure surrounding the anchoring-point portion by one circle.

4 . The tactile-feedback module according to claim 3 , wherein the plurality of levers comprise a first lever group and a second lever group, and in a second direction, the power ends of the levers in the first lever group and the power ends of the levers in the second lever group are centrally arranged on the first closed-loop structure, wherein the second direction is perpendicular to a direction of a connecting line between the first lever group and the second lever group.

5 . The tactile-feedback module according to claim 1 , wherein the tactile-feedback module comprises a plurality of instances of the actuator element and a plurality of instances of the lever, the plurality of levers comprise a third lever group and a fourth lever group, the levers in the third lever group are connected to a same actuator element, the levers in the fourth lever group are connected to a same actuator element, and the levers in the third lever group and the levers in the fourth lever group are connected to different actuator elements.

6 . A tactile-feedback module, comprising:
a touch substrate having a touch surface; an actuator element disposed at one side of the touch substrate away from the touch surface and configured to generate vibration in a first direction, wherein the first direction intersects with the touch surface; a lever located between the actuator element and the touch substrate, wherein a power end of the lever is connected to the actuator element, a resistance end of the lever is connected to the touch substrate, in a stationary state of the actuator element, a plane where the lever is located is parallel to the touch surface, and the lever is configured to, under driving of the actuator element, drive the touch substrate to vibrate; a supporting base located at one side of the actuator element away from the touch substrate; and an anchoring-point portion located between the supporting base and the lever, and fixed on the supporting base, wherein a fulcrum of the lever is disposed at one side of the anchoring-point portion away from the supporting base, the actuator element is fixed on the supporting base, and the actuator element and the anchoring-point portion are separate from each other, and wherein the fulcrum is located between the power end and the resistance end, and an orthographic projection of the actuator element on the touch substrate is closer to a geometric center of the touch surface.

7 . The tactile-feedback module according to claim 6 , wherein the tactile-feedback module comprises a plurality of instances of the lever, the plurality of levers are connected to a same actuator element, and the orthographic projection of the actuator element on the touch substrate covers the geometric center.

8 . The tactile-feedback module according to claim 6 , wherein the tactile-feedback module comprises a plurality of instances of the lever, the fulcrums of the plurality of levers are disposed on a same anchoring-point portion, and the anchoring-point portion is of a second closed-loop structure surrounding the actuator element by one circle.

9 . The tactile-feedback module according to claim 6 , wherein the tactile-feedback module comprises at least two instances of the lever, and the at least two levers share one power end, and are connected to each other at a position of the power end to form an integral structure.

10 . The tactile-feedback module according to claim 6 , wherein a distance between the fulcrum and the power end is less than a distance between the fulcrum and the resistance end.

11 . The tactile-feedback module according to claim 1 , wherein the tactile-feedback module further comprises a plurality of hinges, each of the hinges comprises two connecting faces that are opposite to each other, and the plurality of hinges comprise at least one of:
a first hinge, wherein one of the two connecting faces is connected to the power end, and the other of the two connecting faces is connected to the actuator element; a second hinge, wherein one of the two connecting faces is connected to the touch substrate, and the other of the two connecting faces is connected to the resistance end; and a third hinge, wherein one of the two connecting faces is connected to the fulcrum of the lever, and the other of the two connecting faces is connected to the anchoring-point portion.

12 . The tactile-feedback module according to claim 11 , wherein each of the hinges comprises a side face, the side face is connected between the two connecting faces, and the side face has a groove that is recessed towards an interior of the hinge.

13 . The tactile-feedback module according to claim 12 , wherein in a longitudinal cross section of the hinge, a shape of the groove comprises at least one of a semicircular shape, a semi-elliptical shape, a polygon and an irregular pattern, wherein the longitudinal cross section is a cross section perpendicular to each of the two connecting faces.

14 . The tactile-feedback module according to claim 12 , wherein the groove is of a closed structure or unclosed structure surrounding the hinge by one circle.

15 . The tactile-feedback module according to claim 12 , wherein in a direction parallel to the touch surface, a ratio of a minimum width of the hinges to a maximum width of the hinges is greater than or equal to 0.1, and less than or equal to 0.9.

16 . The tactile-feedback module according to claim 11 , wherein an elasticity modulus of each of the hinges is greate

Assignees

• Beijing Boe Technology Dev Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Tao Yongchun
• Qi Dexing
• Wang Yingzi

Classifications

• G06F1/1643

  the display being associated to a digitizer, e.g. laptops that can be used as penpads (details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615) · CPC title

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title

• G06F3/016 Primary

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title