Touch user interface at a display edge

• US 9,971,436 B2
• Filed: 06/11/2015
• Issued: 05/15/2018
• Est. Priority Date: 06/11/2015
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Peana, Stefan, Meyers, David Michael, Aurongzeb, Deeder M.
• Primary Examiner(s): Chang, Kent
• Assistant Examiner(s): Edwards, Mark
• Application Number:
  US14/737,292
• Publication Number:
  US 20160364030A1
• Time in Patent Office: 1,069 Days
• Field of Search: 345174
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display

Abstract

A touch user interface may be implemented at a display edge, such as a display included with a portable information handling system. An edge touch element may provide structural support for the display along with touch functionality. The edge touch element may be integrated with a touch panel included with the display. The edge touch element may wrap around to a back face of the display.

Claims

1. A display for portable information handling systems, comprising:

a cover glass including a display surface and a first external edge that is perpendicular to the display surface;

a touch sensor layer bonded to the first external edge of the cover glass, the touch sensor layer including a plurality of touch pixels that are individually sensitive to touch input;

a structural element including the touch sensor layer at the first external edge that holds together display components of the display, the display components including a light guide and a mirror; and

a touch panel layer disposed under the display surface and adjacent to at least a portion of the touch sensor layer,

wherein the touch sensor layer and the touch panel layer have a common touch pixel coordinate axis that is aligned with display pixel coordinates of the display.

2. The display of claim 1, wherein the edge touch element is electronically integrated with the touch panel layer.

3. The display of claim 1, wherein the touch sensor layer extends to a back surface of the display opposite the display surface.

4. The display of claim 1, wherein the touch sensor layer extends to a second edge of the display that is perpendicular to the display surface.

5. The display of claim 4, wherein the touch sensor layer extends to a third edge of the display that is perpendicular to the display surface.

6. The display of claim 1, wherein the touch sensor layer includes portions having non-uniform touch pixel density.

7. The display of claim 1, wherein the touch sensor layer includes portions having different sensitivity to touch input.

8. The display of claim 1, wherein the touch sensor layer includes portions having different thicknesses.

9. An information handling system comprising:

a display comprising;

a cover glass including a display surface and a first external edge that is perpendicular to the display surface;

an edge touch element bonded to the first external edge of the cover glass, the edge touch element further comprising a touch sensor layer including a plurality of touch pixels that are individually sensitive to touch input;

a structural element including the touch sensor layer at the first external edge that holds together display components of the display, the display components including a light guide and a mirror; and

a touch panel layer disposed under the display surface and adjacent to at least a portion of the touch sensor layer,

wherein the touch sensor layer and the touch panel layer have a common touch pixel coordinate axis that is aligned with display pixel coordinates of the display.

10. The information handling system of claim 9, wherein the touch sensor layer extends to a back surface of the display opposite the display surface.

11. The information handling system of claim 9, wherein the touch sensor layer extends to a second edge of the display that is perpendicular to the display surface.

12. The information handling system of claim 9, wherein the touch sensor layer extends to a third edge of the display that is perpendicular to the display surface.

13. The information handling system of claim 9, wherein the touch sensor layer includes portions having non-uniform touch pixel density.

14. The information handling system of claim 9, wherein the touch sensor layer includes portions having different sensitivity to touch input.

15. The information handling system of claim 9, wherein the touch sensor layer includes portions having different thicknesses.

16. The information handling system of claim 9, wherein the edge touch element further comprises:

a conductive trace coupled to electronic components of the information handling system, wherein the conductive trace is electronically isolated from the touch sensor layer.

17. The information handling system of claim 16, wherein the conductive trace includes an antenna for radio frequencies.