Vehicle interior lighting systems using electroluminescent panels

• US 6,464,381 B2
• Filed: 02/26/2001
• Issued: 10/15/2002
• Est. Priority Date: 02/26/2000
• Status: Expired

• Current Assignee: Federal-Mogul World Wide LLC (Apollo Global Management, Inc.)
• Original Assignee: Federal-Mogul Worldwide Incorporated (Apollo Global Management, Inc.)
• Inventors: Brown, John Christopher, Anderson, James Burr Jr.
• Primary Examiner(s): Cariaso, Alan
• Assistant Examiner(s): Payne, Sharon
• Application Number:
  US09/793,205
• Publication Number:
  US 20010030871A1
• Time in Patent Office: 596 Days
• Field of Search: 362/488, 362/489, 362/492, 362/84, 362/490, 362/501, 362/23, 362/26, 362/153
• US Class Current: 362/488
• CPC Class Codes: B60Q 3/30 for compartments other than passenger or driving compartments, e.g. luggage or engine compartments
• CPC Class Codes: B60Q 3/745 using lighting panels or mats, e.g. electro-luminescent panels, LED mats
• CPC Class Codes: B60Q 3/82 Switches specially adapted for vehicle interior lighting, e.g. switching by tilting the lens
• CPC Class Codes: H01H 2009/186 using an electroluminiscent panel
• CPC Class Codes: H01H 2219/018 Electroluminescent panel
• CPC Class Codes: H01H 2231/026 Car
• CPC Class Codes: H01H 9/18 Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks

Abstract

A vehicle interior component and lighting assembly that includes a vehicle interior component having a fabric disposed over a substrate or foam layer, or both. An electroluminescent panel is located between the fabric and substrate/foam layer and directs light from the panel through the fabric. In this way, the light source can be effectively hidden when not in use and can be incorporated into the interior component in a manner that requires little space. The vehicle interior component can be any of a number of different interior articles, including, for example, a headliner, door panel, vehicle seat, rear deck, sun visor, and trunk panel. Also disclosed are vehicle interior illumination systems using touch switches and electroluminescent panels to provide back lighting of the switch and/or vehicle interior illumination through the switch.

Claims

1. A vehicle interior component assembly for providing interior vehicle illumination, comprising:

a vehicle interior component having a substrate and a fabric disposed over said substrate; and

an electroluminescent panel disposed between said fabric and substrate, with said electroluminescent panel being configured to direct light from said panel through said fabric.

2. A vehicle interior component assembly as defined in claim 1, wherein said interior component includes a foam layer disposed between said fabric and said substrate.

3. A vehicle interior component assembly as defined in claim 2, wherein said electroluminescent panel is disposed between said foam layer and said substrate.

4. A vehicle interior component assembly as defined in claim 2, wherein said electroluminescent panel is disposed in an opening in said foam layer.

5. A vehicle interior component assembly as defined in claim 1, wherein said substrate includes a recessed portion facing said fabric and wherein said electroluminescent panel is disposed in said recessed portion.

6. A vehicle interior component assembly as defined in claim 1, further comprising an electrical circuit for energizing said electroluminescent panel, where said circuit includes a manually-operated switch.

7. A vehicle interior component assembly as defined in claim 2, further comprising an electrical circuit for energizing said electroluminescent panel, where said circuit includes a timer circuit for controlling the length of energization of said electroluminescent panel.

8. A vehicle interior component assembly as defined in claim 1, wherein said vehicle interior component comprises a vehicle headliner.

9. A vehicle interior component assembly as defined in claim 8, wherein said electroluminescent panel comprises one of a plurality of electroluminescent panels located in said headliner at spaced locations from each other.

10. A vehicle interior component assembly as defined in claim 1, wherein said vehicle interior component comprises a door panel.

11. A vehicle interior component assembly as defined in claim 1, wherein said vehicle interior component comprises a vehicle seat.

12. A vehicle interior component assembly as defined in claim 1, wherein said vehicle interior component comprises a rear deck.

13. A vehicle interior component assembly as defined in claim 1, wherein said vehicle interior component comprises a sun visor.

14. A vehicle interior component assembly as defined in claim 1, wherein said vehicle interior component comprises a trunk panel.

15. A vehicle interior component assembly for providing interior vehicle illumination, comprising:

a vehicle interior component having a foam layer and a fabric disposed over said foam layer; and

an electroluminescent panel disposed between said fabric and foam layer, with said electroluminescent panel being configured to direct light from said panel through said fabric.

16. A vehicle interior component assembly as defined in claim 15, wherein said vehicle interior component includes a foam substrate with said foam layer being disposed between said fabric and said substrate.

17. A vehicle interior component assembly as defined in claim 15, further comprising an electrical circuit for energizing said electroluminescent panel, where said circuit includes a manually-operated switch.

18. A vehicle interior component assembly as defined in claim 15, further comprising an electrical circuit for energizing said electroluminescent panel, where said circuit includes a timer circuit for controlling the length of energization of said electroluminescent panel.

19. A vehicle interior component assembly as defined in claim 15, wherein said vehicle interior component comprises a vehicle headliner.

20. A vehicle interior component assembly as defined in claim 19, wherein said electroluminescent panel comprises one of a plurality of electroluminescent panels located in said headliner at spaced locations from each other.

21. A vehicle interior component assembly as defined in claim 15, wherein said vehicle interior component comprises a door panel.

22. A vehicle interior component assembly as defined in claim 15, wherein said vehicle interior component comprises a vehicle seat.

23. A vehicle interior component assembly as defined in claim 22, wherein said vehicle interior component comprises a seat back.

24. A vehicle interior component assembly as defined in claim 15, wherein said vehicle interior component comprises a sun visor.

25. A vehicle interior component assembly as defined in claim 15, wherein said vehicle interior component comprises a rear deck.

26. A vehicle interior component assembly as defined in claim 15, wherein said vehicle interior component comprises a trunk panel.

27. A vehicle carpet, comprising:

a substrate;

a carpet pile attached to said substrate; and

an electroluminescent panel mounted underneath said carpet pile, with said electroluminescent panel being configured to direct light from said panel through said carpet pile.

28. A vehicle carpet as defined in claim 27, wherein said substrate and attached carpet pile together comprise a floor mat.

29. A instrument panel assembly for a vehicle, comprising:

an instrument panel having a lower surface that faces towards a floor area of the vehicle when installed within the vehicle, said lower surface having a light-transmitting region; and

an electroluminescent panel mounted within said instrument panel behind said lower surface at said light-transmitting region, with said electroluminescent panel being configured to direct light from said panel through said light-transmitting region of said lower surface.