Vehicle lamp

Abstract

A vehicle lamp includes a planar light-emitting structure having a substrate on which an organic EL emission element is provided, a framing member that fixes the planar light-emitting structure inside a vehicle-lamp light cabinet, and an elastic member that is interposed between the planar light-emitting structure and the framing member and that fixes the planar light-emitting structure by its biasing force.

What is claimed is: 
     
         1 . A vehicle lamp, comprising:
 a planar light-emitting structure having a substrate on which an organic electroluminescent emission element is provided;   a framing member for fixing the planar light-emitting structure inside a vehicle-lamp light cabinet; and   an elastic member interposed between the planar light-emitting structure and the framing member, fixing the planar light-emitting structure under the elastic member's biasing force.   
     
     
         2 . The vehicle lamp according to  claim 1 , wherein:
 electrical contacts for the supplying of electric power to the organic electroluminescent element are provided in portions of a peripheral margin of the planar light-emitting structure;   and   the elastic member is disposed fronting on the electrical contacts, and is configured such as to feed electric power via the electrical contacts.   
     
     
         3 . The vehicle lamp according to  claim 2 , wherein the elastic member is disposed in a portion of a side of the framing member fronting on the planar light-emitting structure. 
     
     
         4 . The vehicle lamp according to  claim 3 , wherein the elastic member is of conductive rubber. 
     
     
         5 . The vehicle lamp according to  claim 3 , wherein a busbar for supplying electric power to the elastic member is provided either inside the framing member or on a side thereof confronting the planar light-emitting structure. 
     
     
         6 . The vehicle lamp according to  claim 1 , wherein the elastic member is disposed such as to provide between the planar light-emitting structure and the framing member a penetrating space for passing air therethrough of temperature elevated by heat emitted from the planar light-emitting structure. 
     
     
         7 . A vehicle lamp, comprising:
 a planar light-emitting structure having a first substrate on which an organic electroluminescent emission element is formed, a single linear anode feeder element and a single linear cathode feeder element electrically connected to the organic electroluminescent emission element being provided on a back surface along an outer periphery thereof; and   a second substrate connected to the planar light-emitting structure such as to be in contact with the anode feeder element   and the cathode feeder element; wherein   the anode feeder element is longer than the cathode feeder element as gauged along the outer periphery of the planar light-emitting structure.   
     
     
         8 . The vehicle lamp according to  claim 7 , wherein the second substrate is configured to make contact with two terminuses of the anode feeder element, located on the outer periphery of the planar light-emitting structure. 
     
     
         9 . The vehicle lamp according to  claim 7 , wherein the anode feeder element includes a section shaped in an annular form along the outer periphery of the planar light-emitting structure. 
     
     
         10 . The vehicle lamp according to  claim 7 , wherein:
 terminuses of the anode feeder element and of the cathode feeder element are provided such as to be located one-sidedly on the planar light-emitting structure; and   the second substrate is disposed along the one side of the planar light-emitting structure such as to make contact with all of the terminuses.   
     
     
         11 . The vehicle lamp according to  claim 7 , further comprising:
 a fixing member that includes
 a concave portion supporting the outer periphery of the planar light-emitting structure, and 
 an underside opposing the back surface of the planar light-emitting structure; wherein 
   the underside has a convex portion provided in a location thereon corresponding to where either the anode feeder element or the cathode feeder element is connected to the second substrate.   
     
     
         12 . The vehicle lamp according to  claim 11 , wherein:
 the second substrate is connected to a lower-end side of the planar light-emitting structure; and   a hole is formed in the concave portion in a portion thereof located on its lower-end side.   
     
     
         13 . The vehicle lamp according to  claim 7 , wherein the second substrate is a flexible circuit. 
     
     
         14 . The vehicle lamp according to  claim 7 , wherein:
 a current-carrying wiring formation in contact with either the anode feeder element or the cathode feeder element, and a non-current-carrying dummy formation are formed on the second substrate; and   the wiring formation and the dummy formation are of substantially identical film thickness.   
     
     
         15 . The vehicle lamp according to  claim 7 , wherein a Zener diode is interposed between the anode feeder element and the cathode feeder element.