Edge to edge touch screen

• US 9,563,314 B2
• Filed: 01/13/2016
• Issued: 02/07/2017
• Est. Priority Date: 04/18/2013
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Bui, Vinh X., Pelissier, Gerald L., Luecke, Alan, Wang, Shih-Kai
• Primary Examiner(s): Tzeng, Fred
• Application Number:
  US14/994,772
• Publication Number:
  US 20160124578A1
• Time in Patent Office: 391 Days
• Field of Search: 345/173
• US Class Current: 1/1
• CPC Class Codes: G02B 6/0023 provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
• CPC Class Codes: G02B 6/43 Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen
• CPC Class Codes: Y10T 29/49105 Switch making

Abstract

A method includes printing a colorant on a film to define an opaque border region and a transparent active display area portion, bonding the film to a waveguide, and assembling a touch screen. The touch screen includes a display assembly for displaying images, an emitter/detector assembly, the waveguide, and the film.

Claims

1. An information handling system comprising:

a processor;

a storage device in communication with the processor; and

a touch sensitive display assembly in communication with the processor, the touch sensitive display assembly including;

a display assembly operable to display images;

an emitter/detector assembly;

a waveguide;

an opaque border portion of a surface overlying the emitter/detector assembly; and

a transparent display area portion of the surface overlying at least a portion of the display assembly.

2. The information handling system of claim 1, wherein the waveguide includes glass.

3. The information handling system of claim 1, wherein the waveguide includes poly(methyl methacrylate).

4. The information handling system of claim 1, wherein the opaque border portion includes a colorant.

5. The information handling system of claim 1, wherein the opaque border portion includes multiple colorants arranged to form a pattern or text that can be seen when viewing the touch sensitive display assembly.

6. The information handling system of claim 1, wherein the waveguide is curved.

7. A touch sensitive display assembly comprising:

a display assembly operable to display images;

an emitter/detector assembly;

a waveguide;

an opaque border portion of a surface overlying the emitter/detector assembly; and

a transparent display area portion of the surface overlying at least a portion of the display assembly.

8. The touch sensitive display assembly of claim 7, wherein the waveguide includes glass.

9. The touch sensitive display assembly of claim 7, wherein the waveguide includes poly(methyl methacrylate).

10. The touch sensitive display assembly of claim 7, wherein the opaque border portion includes a colorant.

11. The touch sensitive display assembly of claim 7, wherein the opaque border portion includes multiple colorants arranged to form a pattern or text that can be seen when viewing the touch sensitive display assembly.

12. The touch sensitive display assembly of claim 7, wherein the waveguide is curved.

13. A method comprising:

applying a colorant to define an opaque border region and a transparent active display area portion of a waveguide; and

assembling a touch screen display assembly including;

a display assembly operable to display images;

an emitter/detector assembly; and

the waveguide;

wherein the opaque border portion overlies the emitter/detector assembly, and the active display area portion overlies at least a portion of the display assembly.

14. The method of claim 13, wherein the waveguide includes glass.

15. The method of claim 13, wherein waveguide includes poly(methyl methacrylate).

16. The method of claim 13, wherein applying the colorant includes applying the colorant as a solid color to the opaque border region.

17. The method of claim 13, wherein applying the colorant includes applying multiple colorants to form a pattern or text that can be seen when viewing the touch sensitive display assembly.

18. The method of claim 13, wherein waveguide is curved.