System for illuminating a vehicle interior trim component

• US 8,596,803 B2
• Filed: 01/24/2011
• Issued: 12/03/2013
• Est. Priority Date: 01/24/2011
• Status: Active Grant

• Current Assignee: Yanfeng Czechia Automotive Interior Systems s.r.o.
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc)
• Inventors: Schultz, Steve G., Burg, Brook Rodney, Borgeson, Timothy J., Frens, Jonathan M.
• Primary Examiner(s): Lee, Y My Quach
• Application Number:
  US13/012,556
• Publication Number:
  US 20120188779A1
• Time in Patent Office: 1,044 Days
• Field of Search: 362/26, 362/27, 362/28, 362/29, 362/30, 362/248, 362/488, 362/489, 362/561, 362/602
• US Class Current: 362/26
• CPC Class Codes: B60K 2360/33 Illumination features
• CPC Class Codes: B60K 2370/33 Illumination features
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: B60K 37/02 Arrangement of instruments arrangement of lighting devices for dashboards B60Q3/10
• CPC Class Codes: B60Q 3/14 lighting through the surface to be illuminated
• CPC Class Codes: B60Q 3/54 Lighting devices embedded in interior trim, e.g. in roof liners
• CPC Class Codes: B60Q 3/64 for a single lighting device
• CPC Class Codes: B60Q 3/78 for generating luminous strips, e.g. for marking trim component edges
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

A vehicle interior assembly includes a light guide and a light source configured to illuminate the light guide. The vehicle interior assembly also includes an interior trim component at least partially disposed about a display. The interior trim component includes a light transmissive material configured to receive light from the light guide, and to emit light into a vehicle interior.

Claims

1. A vehicle interior assembly, comprising:

a light guide;

a light source configured to illuminate the light guide; and

an interior trim component positioned adjacent to an electronic graphical display, wherein the interior trim component comprises a light transmissive material configured to receive light from the light guide, and to emit light into a vehicle interior;

wherein the light source is positioned between the electronic graphical display and the interior trim component and is not positioned between the light guide and the electronic graphical display.

2. The vehicle interior assembly of claim 1, wherein the light source comprises a light emitting diode.

3. The vehicle interior assembly of claim 1, comprising a graphic disposed on a show surface of the interior trim component.

4. The vehicle interior assembly of claim 1, wherein the electronic graphical display comprises a liquid crystal display.

5. The vehicle interior assembly of claim 1, comprising a printed circuit board positioned adjacent to the light guide, and configured to drive the light source.

6. The vehicle interior assembly of claim 1, comprising a flex circuit positioned adjacent to the light guide, and configured to drive the light source.

7. The vehicle interior assembly of claim 1, comprising a housing disposed about a perimeter of the interior trim component.

8. The vehicle interior assembly of claim 1, wherein the interior trim component comprises polymethyl methacrylate.

9. The vehicle interior assembly of claim 1, comprising a light shield positioned adjacent to the light guide, opposite from the interior trim component.

10. The vehicle interior assembly of claim 9, wherein the light shield is configured to dissipate heat generated by the light source.

11. A vehicle interior assembly, comprising:

an electronic graphical display;

a light transmissive interior trim component having a first side and a second side, wherein the first side faces the electronic graphical display;

a light guide disposed adjacent to the first side; and

a light source configured to illuminate the light guide, wherein the light source is positioned between the electronic graphical display and the light transmissive interior trim component and is not positioned between the light guide and the electronic graphical display;

wherein the light transmissive interior trim component is configured to receive light from the light guide and to emit light from the second side.

12. The vehicle interior assembly of claim 11, wherein the electronic graphical display comprises a digital display.

13. The vehicle interior assembly of claim 11, comprising a graphic disposed on the second side of the light transmissive interior trim component.

14. The vehicle interior assembly of claim 11, comprising a light shield positioned adjacent to the light guide, opposite from the light transmissive interior trim component.

15. A method for manufaturing a vehicle interior assembly, comprising:

disposing a light source adjacent to a light guide such that light emitted from the light source is directed toward the light guide;

disposing the light guide adjacent to a light transmissive interior trim component such that light emitted from the light guide is directed toward the light transmissive interior trim component; and

disposing the light trasmissive interior trim component at least partially adjacent to an electronic graphical display, wherein the light source is positioned between the electronic graphical display and the light transmissive interior trim component and is not positioned between the light guide and the electronic graphical display.

16. The method of claim 15, comprising disposing a light shield adjacent to the light guide, opposite from the light transmissive interior trim component.

17. The method of claim 15, comprising disposing a graphic on the light transmissive interior trim component such that the light emitted from the light guide illuminates the graphic.

18. The method of claim 17, wherein disposing a graphic on the light transmissive interior trim component comprises disposing a first layer onto a surface of the light transmissive interior trim component, disposing a second layer onto the first layer, and laser etching the second layer to expose the first layer.

19. The method of claim 15, comprising mounting the light source to a printed circuit board, and positioning the printed circuit board adjacent to the light guide.

20. The method of claim 15, comprising mounting the light source to a flex circuit, and positioning the flex circuit adjacent to the light guide.