Suspension component for a haptic touch panel assembly

Patent metadata

Field	Value
Publication number	US-9910493-B2
Application number	US-201414535747-A
Country	US
Kind code	B2
Filing date	Nov 7, 2014
Priority date	Nov 7, 2014
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

A suspension component for coupling a touch panel to a substrate in a haptic touch panel assembly. The suspension component includes a flexible connector that extends between a first end adapted for attachment to the touch panel and a second end adapted for attachment to the substrate. The flexible connector includes a concave section, an axial side wall, and a mobility gap and is shaped to allow the touch panel to move with respect to the substrate with three or more degrees of freedom, thereby facilitating more accurate and dynamic haptic feedback.

First claim

The invention claimed is:

1. A suspension component for coupling a touch panel to a substrate in a haptic touch panel assembly, at least a portion of the touch panel being spaced from the substrate in an axial direction, the suspension component comprising:
a touch panel interface adapted for attachment to the touch panel and comprising an axially facing surface having an outer perimeter;
a substrate interface adapted for attachment to the substrate and comprising an annular axially facing surface having an inner perimeter radially spaced from the outer perimeter of the touch panel interface, the substrate interface being concentric with and parallel to the touch panel interface;
an annular flexible connector extending between a first end connected to the touch panel interface along the outer perimeter and a second end connected to the inner perimeter of the substrate interface, the first and second ends being radially spaced,
wherein the flexible connector includes:
an axial side wall comprising a first end extending from the touch panel interface and around the outer perimeter thereof,
an axially-facing concave section facing the touch panel interface and comprising a first end extending from a second end of the axial side wall, and
a plurality of separately formed circumferentially spaced stabilizing portions, each stabilizing portion comprising a first end coupled with a second end of the concave section and spaced about the touch panel interface and a second end connected to the substrate interface,
wherein a mobility gap is defined by the flexible connector and located between the axial sidewall and the substrate interface, whereby the flexible connector allows the touch panel to move with three or more degrees of freedom with respect to the substrate when coupled by the suspension component.

2. The suspension component of claim 1 , wherein the concave section is a U-shaped portion having an open end facing in the axial direction.

3. The suspension component of claim 1 , wherein the concave section is a U-shaped portion having an open end facing in the axial direction, and each stabilizing portion includes a U-shaped portion having an open end facing in an opposite axial direction.

4. The suspension component of claim 1 , wherein the concave section includes a nadir, each stabilizing portion includes an apex, the nadir and apex being equidistant from the second end.

5. The suspension component of claim 1 , wherein the concave section includes a nadir and the axial distance between the first end and the second end is greater than the axial distance between the nadir and the second end.

6. The suspension component of claim 1 , wherein the flexible connector includes a second axial side wall between the concave section and said stabilizing portions such that the axial side walls are spaced apart in the transverse direction by the concave section to define the mobility gap.

7. The suspension component of claim 1 , wherein at least a portion of the flexible connector lies outside an axial region defined between the first and second ends of the flexible connector.

8. The suspension component of claim 7 , wherein each concave section includes a nadir that lies outside the axial region.

9. The suspension component of claim 1 , wherein said three or more degrees of freedom includes five or more degrees of freedom.

10. A suspension component for coupling a touch panel to a substrate in a haptic touch panel assembly, at least a portion of the touch panel being spaced from the substrate in an axial direction, the suspension component comprising:
a touch panel interface adapted for attachment to the touch panel and comprising an axially facing surface having an outer polygonal perimeter having a plurality of sides;
a plurality of substrate interfaces adapted for attachment to the substrate and each comprising an axially facing surface having an inner side radially spaced from the outer perimeter of the touch panel interface, the substrate interfaces being parallel to the touch panel interface, equally spaced about the outer perimeter, and equally spaced radially from the outer perimeter; and
a plurality of flexible connectors equally spaced about the perimeter of the touch panel interface, each flexible connector extending between one of the sides of the polygonal perimeter and one of the substrate interfaces,
each flexible connector comprising:
a first end connected to the perimeter of the touch panel interface;
a second end spaced from the first end in a transverse direction that is perpendicular to the axial direction and connected to the inner side of a respective one of the substrate interfaces;
an axial side wall comprising a first end extending from the touch panel interface;
an axially-facing concave section facing the touch panel interface and comprising a first end extending from a second end of the axial side wall;
a radially outward portion comprising a first end extending from a second end of the concave section and a second end connected to the substrate interface; and
a mobility gap defined between the axial sidewall and the respective substrate interface,
whereby the plurality of flexible connectors together allow the touch panel to move with three or more degrees of freedom with respect to the substrate when coupled by the suspension component,
wherein one of the degrees of freedom is a rotational degree of freedom about an axis that is perpendicular to the axial and transverse directions.

11. The suspension component of claim 10 , wherein said three or more degrees of freedom includes five or more degrees of freedom.

12. The suspension component of claim 10 , wherein each concave section has an open end facing in the axial direction and each radially outward portion comprises a stabilizing portion comprising a first end coupled with the second end of the concave section and a second end connected to the substrate interface, each stabilizing portion being concave and having an open end facing in an opposite axial direction.

13. The suspension component of claim 12 , wherein each flexible connector includes a second axial side wall between the concave section and said stabilizing portion such that the axial side walls are spaced apart in the transverse direction by the concave section to define the mobility gap.

14. The suspension component of claim 10 , wherein the touch panel interface is rectangular with one of the flexible connectors on one side of the rectangle and another of the flexible connectors on an opposite side of the rectangle.

15. The suspension component of claim 10 , wherein the first and second ends of each flexible connector are located at the same axial position.

16. The suspension component of claim 10 , wherein at least a portion of each flexible connector lies outside an axial region defined between the first and second ends of the flexible connector.

17. The suspension component of claim 10 , wherein the degrees of freedom further include a translational degree of freedom along the axial direction and a translational degree of freedom along the transverse direction.

18. The suspension component of claim 10 integrally molded with a substrate of a haptic touch panel assembly such that each of the plurality of substrate interfaces is integral with the substrate.

Assignees

• Faurecia Interior Systems Inc

Inventors

• Vander Sluis Daniel R
• Hotchkiss Jay W

Classifications

• G06F3/016 Primary

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

• 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

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• G06F3/03547

  Touch pads, in which fingers can move on a surface · CPC title

• G06F1/16

  Constructional details or arrangements · CPC title