Capacitively coupled computing device antenna

• US 8,941,610 B1
• Filed: 08/31/2012
• Issued: 01/27/2015
• Est. Priority Date: 08/31/2012
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Rivera, Felix Alvarez, Gummalla, Ajay
• Primary Examiner(s): Boyd, Jonathan
• Assistant Examiner(s): AZONGHA, SARDIS F
• Application Number:
  US13/600,427
• Time in Patent Office: 879 Days
• Field of Search: None
• US Class Current: 345/173
• CPC Class Codes: G06F 1/1643 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 Class Codes: G06F 1/1698 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone details of antennas disposed inside a computer H01Q1/2266
• CPC Class Codes: H01Q 1/2266 disposed inside the computer

Abstract

A computing device includes a capacitively coupled antenna provided in a display portion of the device. An antenna pattern is provided on a backside of a touch screen display. An antenna element is provided in a display housing. The touch screen is attached to the display housing a dielectric adhesive. The dielectric adhesive prevents the antenna pattern from contacting the antenna element such that the antenna pattern is capacitively coupled to the antenna element.

Claims

1. A computing device comprising:

a touch screen display having an antenna pattern provided on a surface thereof;

a display housing having an antenna element provided therein; and

a single dielectric adhesive located between the touch screen display and the display housing, as well as between the antenna pattern and the antenna element,

wherein the touch screen display is attached to the display housing using the dielectric adhesive, and wherein the dielectric adhesive prevents the antenna pattern from contacting the antenna element such that the antenna pattern is capacitively coupled to the antenna element.

2. The computing device of claim 1, wherein a thickness of the dielectric adhesive between the antenna pattern and the antenna element is less than 0.1 millimeters.

3. The computing device of claim 1, wherein a shape of the antenna pattern matches a shape of the antenna element.

4. The computing device of claim 1, further comprising an antenna carrier, wherein the antenna element is provided in the antenna carrier, the antenna carrier being configured to shield the antenna element from interference with other computing device components.

5. The computing device of claim 1, wherein the display housing comprises a metal material.

6. The computing device of claim 1, wherein the antenna pattern comprises indium tin oxide.

7. The computing device of claim 1, wherein the antenna pattern is substantially rectangular and is provided proximate to edges of the touch screen display.

8. A computing device comprising:

a base portion; and

a display portion attached to the base portion, the display portion comprising;

a touch screen display having an antenna pattern provided on a surface thereof,

a display housing having an antenna element provided therein, and

a single dielectric adhesive located between the touch screen display and the display housing, as well as between the antenna pattern and the antenna element,

wherein the touch screen display is attached to the display housing the dielectric adhesive, and wherein the dielectric adhesive prevents the antenna pattern from contacting the antenna element such that the antenna pattern is capacitively coupled to the antenna element.

9. The computing device of claim 8, wherein a thickness of the dielectric adhesive between the antenna pattern and the antenna element is less than 0.1 millimeters.

10. The computing device of claim 8, wherein a shape of the antenna pattern matches a shape of the antenna element.

11. The computing device of claim 8, further comprising an antenna carrier, wherein the antenna element is provided in the antenna carrier, the antenna carrier being configured to shield the antenna element from interference with other computing device components.

12. The computing device of claim 8, wherein the display housing comprises a metal material.

13. The computing device of claim 8, wherein the antenna pattern comprises indium tin oxide.

14. The computing device of claim 8, wherein the antenna pattern is substantially rectangular and is provided proximate to edges of the touch screen display.

15. A method comprising:

providing an antenna pattern on a surface of a touch screen display;

providing an antenna element in a display housing;

providing a single dielectric adhesive between the touch screen display and the display housing, as well as between the antenna pattern and the antenna element; and

attaching the touch screen display to the display housing the dielectric adhesive,

wherein the dielectric adhesive prevents the antenna pattern from contacting the antenna element such that the antenna pattern is capacitively coupled to the antenna element.

16. The method of claim 15, wherein a thickness of the dielectric adhesive between the antenna pattern and the antenna element is less than 0.1 millimeters.

17. The method of claim 15, wherein a shape of the antenna pattern matches a shape of the antenna element.

18. The method of claim 15, further comprising providing an antenna carrier in the display housing, herein the antenna element is provided in the antenna carrier, the antenna carrier being configured to shield the antenna element from interference with other components in the display housing.

19. The method of claim 15, wherein providing the antenna pattern comprises patterning the antenna pattern on a back surface of the touch screen display using masking, sputtering and etching techniques.

20. The method of claim 15, wherein the antenna pattern comprises indium tin oxide.

21. The method of claim 15, wherein providing the antenna pattern comprises providing the antenna pattern proximate to edges of the touch screen display.