Electromagnetic shield for display

• US 7,515,219 B2
• Filed: 05/17/2006
• Issued: 04/07/2009
• Est. Priority Date: 05/17/2006
• Status: Active Grant

• Current Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Duce, Raymond J., Bay, Jon P., Bozzer, Erich, Kramer, Joseph N.
• Primary Examiner(s): Healy; Brian
• Assistant Examiner(s): Mooney; Michael P
• Application Number:
  US11/435,630
• Publication Number:
  US 20070268424A1
• Time in Patent Office: 1,056 Days
• Field of Search: 349/56, 349 58- 59, 349/61, 349/70, 345/75.1
• US Class Current: 349/56
• CPC Class Codes: H05K 9/0032 having multiple parts, e.g. frames mating with lids

Abstract

An electromagnetic shielding system including a circuit board, a display and a shield is described. The shield includes a face having an opening through which the display is visible. A wall portion extends from the face of the shield towards the circuit board. As a result, the display is substantially encapsulated between the circuit board, the shield and the wall portion.

Claims

1. A system for shielding electronic components, the system comprising:

a circuit board having a locking point and a front side, the front side of the circuit board having a mounting area;

a display having a front side and a back side, the front side having a viewing area, the back side located flush with the mounting area; and

a shield located adjacent to the display, the shield having at least one wall portion and a face defining an opening for viewing the viewing area of the display, the wall portion extending at an angle from the face of the shield, the wall portion having a locking peg in mechanical engagement with the locking point, whereby the circuit board, the shield and the wall portion substantially encapsulate the display;

wherein the locking point is an aperture defined by the circuit board, the aperture extending through the thickness of the circuit board; and

wherein the area defined by the face of the shield is less than the area defined by the front side of the circuit board.

2. The system of claim 1, wherein the circuit board further comprises an electrical contact and the display further comprises a display connector, the display connector being in electrical communication with the electrical contact.

4. The system of claim 1, wherein the display is a vacuum florescent display.

5. The system of claim 1, wherein the shield is made of nickel, iron, tin, steel, aluminum or combination thereof.

6. The system of claim 1, wherein the wall portion is substantially perpendicular to the face.

7. The system of claim 1, wherein the wall portion further comprises a plurality of wall portions generally encircling the face.

8. The system of claim 7, wherein the plurality of wall portions each have at least one locking peg and the circuit board further comprises a plurality of locking points, whereby each locking peg is in mechanical engagement with one of the plurality of locking points.

9. The system of claim 1, wherein the locking peg is located within the aperture.

10. The system of claim 9, wherein the locking peg frictionally engages portions of the circuit board defining the aperture, thereby attaching the locking peg to the portion of the circuit board defining the aperture.

11. The system of claim 9, further comprising a retaining material located within the aperture between the locking peg and the portion of the circuit board defining the aperture, whereby the retaining material attaches the locking peg to the portion of the circuit board defining the aperture.

12. The system of claim 11, wherein the retaining material is solder.

13. The system of claim 11, wherein the retaining material is an adhesive.

3. A system for shielding electronic components, the system comprising:

a circuit board having a mounting area and a locking point;

a display having a front side and a back side, the front side having a viewing area, the back side located adjacent to the mounting area; and

a shield located adjacent to the display, the shield having at least one wall portion and a face defining an opening for viewing the viewing area of the display, the wall portion extending at an angle from the face of the shield, the wall portion having a locking peg in mechanical engagement with the locking point, whereby the circuit board, the shield and the wall portion substantially encapsulate the display;

wherein the circuit board further comprises an electrical contact and the display further comprises a display connector, the display connector being in electrical communication with the electrical contact; and

wherein the wall portion defines an opening adjacent to the display connector, whereby the opening allows access to the display connector.