Interior/exterior component with electroluminescent lighting and soft touch switching

• US 7,445,350 B2
• Filed: 08/22/2005
• Issued: 11/04/2008
• Est. Priority Date: 08/22/2005
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Technical Center North America Incorporated (Nissan Motor Co., Ltd.)
• Inventors: Miller, Michael R., Konet, Heather S., Sterling, Jennifer J., Gray, Jason M.
• Primary Examiner(s): Sember; Thomas M
• Application Number:
  US11/207,906
• Publication Number:
  US 20070041169A1
• Time in Patent Office: 1,170 Days
• Field of Search: 362/489, 362/490, 362/84, 362/85, 362/276, 362/802, 427/66, 427/282, 312/506, 312/509, 312/511, 312/512, 345/36, 345/43, 200/310, 200/313, 200/314, 200/317
• US Class Current: 362/84
• 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: H03K 17/96 Touch switches specially adapted for electronic time-pieces with no moving parts G04G21/08
• CPC Class Codes: H03K 17/962 Capacitive touch switches
• CPC Class Codes: H03K 2217/960785 with illumination

Abstract

A light panel includes an outer layer, a first proximity switch, an electroluminescent element and a base portion. The outer layer includes a translucent portion. The first proximity switch is disposed beneath the outer layer and has first and second electrically conductive switch portions that are arranged to form an electric field that emanates through the outer layer when the first proximity switch is energized. The electroluminescent element is disposed beneath the outer layer to provided backlighting to the outer layer. One of the first and second electrically conductive switch portions of the first proximity switch forms at least a portion of an electrode of the electroluminescent element. The base portion is disposed beneath the electroluminescent element and the first proximity switch.

Claims

1. A light panel comprising:

an outer layer including a translucent portion;

a first proximity switch disposed beneath the outer layer, the first proximity switch having a first electrically conductive switch portion and a second electrically conductive switch portion that are non-movably arranged with respect to one another and arranged to form an electric field that emanates through the outer layer when the first proximity switch is energized such that the first proximity switch operates in response to fluctuations in the electric field caused by proximity or touch of a human finger;

an electroluminescent element disposed beneath the outer layer to provide backlighting to the outer layer, with one of the first and second electrically conductive switch portions of the first proximity switch forming at least a portion of an electrode of the electroluminescent element; and

a base portion disposed beneath the electroluminescent element and the first proximity switch.

2. The light panel as set forth in claim 1, wherein

the second switch portion surrounds the first switch portion.

3. The light panel as set forth in claim 1, wherein

the second switch portion is applied on the outer layer to at least partially coincide with the translucent portion.

4. The light panel as set forth in claim 1, wherein

the electroluminescent element includes phosphor and dielectric materials between a pair of electrically conductive layers, with one of the electrically conductive layers of the electroluminescent element including one of the first and second electrically conductive switch portions of the first proximity switch.

5. The light panel as set forth in claim 1, wherein the base portion includes at least one attachment portion.

6. The light panel as set forth in claim 1, wherein

the outer layer, the first proximity switch and the electroluminescent element have a contoured surface profile.

7. The light panel as set forth in claim 1, further comprising

a controller electrically connected to the first proximity switch and the electroluminescent element.

8. The light panel as set forth in claim 7, wherein

the controller is configured to turn on and off the electroluminescent element when the first proximity switch is operated.

9. The light panel as set forth in claim 7, wherein

the controller is configured to turn on and off the electroluminescent element upon receiving a signal from a remote switch.

10. The light panel as set forth in claim 7, wherein

the controller is configured to turn on the electroluminescent element when the first proximity switch is operated while the electroluminescent element is off, and

the controller is further configured to turn on at least one remote device when the first proximity switch is operated when the electroluminescent element is illuminated.

11. The light panel as set forth in claim 1, further comprising

an array of proximity switches which includes the first proximity switch as part of the array of proximity switches that each forms an electric field that emanates through the outer layer when energized and that each forms at least a portion of the electrode of the electroluminescent element.

12. The light panel as set forth in claim 11, further comprising

a controller electrically connected to the array of proximity switches, including the first proximity switch, and the electroluminescent element.

13. The light panel as set forth in claim 11, wherein

the controller is configured to turn on and off the electroluminescent element when anyone of the array of proximity switches, including the first proximity switch, is operated.

14. The light panel as set forth in claim 11, wherein

the controller is configured to turn on and off the electroluminescent element upon receiving a signal from a remote switch.

15. The light panel as set forth in claim 11, wherein

the controller is configured to turn on the electroluminescent element when anyone of the array of proximity switches, including the first proximity switch, is operated while the electroluminescent element is off, and

the controller is further configured to turn on at least one remote device when the first proximity switch is operated when the electroluminescent element is illuminated.

16. A light panel comprising:

an outer layer including a translucent portion;

a first proximity switch disposed beneath the outer layer, the first proximity switch having a first electrically conductive switch portion and a second electrically conductive switch portion that are non-movably arranged to form an electric field that emanates through the outer layer when the first proximity switch is energized, the first switch portion being applied on the outer layer to at least partially coincide with the translucent portion;

an electroluminescent element disposed beneath the outer layer to provide backlighting to the outer layer, with one of the first and second electrically conductive switch portions of the first proximity switch forming at least a portion of an electrode of the electroluminescent element; and

a base portion disposed beneath the electroluminescent element and the first proximity switch.

17. A light panel comprising:

an outer layer including a translucent portion;

a first proximity switch disposed beneath the outer layer, the first proximity switch having a first electrically conductive switch portion and a second electrically conductive switch portion that are arranged to form an electric field that emanates through the outer layer when the first proximity switch is energized, the first and second switch portions being translucent;

an electroluminescent element disposed beneath the outer layer to provide backlighting to the outer layer, with one of the first and second electrically conductive switch portions of the first proximity switch forming at least a portion of an electrode of the electroluminescent element; and

a base portion disposed beneath the electroluminescent element and the first proximity switch.

18. A light panel comprising

an outer layer including a translucent portion;

a first proximity switch disposed beneath the outer layer, the first proximity switch having a first electrically conductive switch portion and a second electrically conductive switch portion that are non-movably arranged to form an electric field that emanates through the outer layer when the first proximity switch is energized;

an electroluminescent element disposed beneath the outer layer to provide backlighting to the outer layer, with one of the first and second electrically conductive switch portions of the first proximity switch forming at least a portion of an electrode of the electroluminescent element;

a base portion disposed beneath the electroluminescent element and the first proximity switch; and

a second proximity switch that forms an electric field that emanates through the outer layer when energized and that forms at least a portion of the electrode of the electroluminescent element.

19. The light panel as set forth in claim 18, further comprising

a controller electrically connected to the first and second proximity switches, and the electroluminescent element, with the controller being configured to turn on and off the electroluminescent element and the controller being configured to operate at least one remote device upon the first and second proximity switches being selectively operated.

20. The light panel as set forth in claim 19, wherein

the controller is further configured to turn on the electroluminescent element when either one of the first and second proximity switches is operated while the electroluminescent element is off, and

the controller is further configured to operate the at least one remote device when either one of the first and second proximity switches is operated when the electroluminescent element is illuminated.

21. A light panel comprising:

an outer layer including a translucent portion;

a first proximity switch disposed beneath the outer layer, the first proximity switch having a first electrically conductive switch portion and a second electrically conductive switch portion that are non-movably arranged to form an electric field that emanates through the outer layer when the first proximity switch is energized;

an electroluminescent element disposed beneath the outer layer to provide backlighting to the outer layer, with one of the first and second electrically conductive switch portions of the first proximity switch forming at least a portion of an electrode of the electroluminescent element;

a base portion disposed beneath the electroluminescent element and the first proximity switch; and

the outer layer also includes a visible graphic.

22. The light panel as set forth in claim 21, wherein

the first proximity switch is at least partially disposed directly beneath the visible graphic.