Light-emitting device with improved flexural resistance and electrical connection between layers, production method therefor, and device using light-emitting device

Abstract

A light-emitting device includes a pair of light-transmissive insulator sheets disposed opposite to each other and two types of light-transmissive electroconductive layers disposed on a common one of or separately on one and the other of the pair of light-transmissive insulator sheets, and at least one light-emitting semiconductor each provided with a cathode and an anode which are individually and electrically connected to the two types of the light-transmissive electroconductive layers. The electrical connection and mechanical bonding between the members are improved by a light-transmissive elastomer which is between the pair of light-transmissive insulator sheets. A method in which a light-emitting semiconductor element and a light-transmissive electroconductive member are subjected to vacuum hot-pressing.

1 .- 20 . (canceled) 
     
     
         21 . A light-emitting device, comprising:
 a first flexible member;   a second flexible member;   a circuit pattern disposed on the first flexible member;   one or more light-emitting elements located between the first flexible member and the second flexible member, each light-emitting element comprising an anode electrode layer and a cathode electrode layer, the anode electrode layer being electrically connected to a first portion of the circuit pattern, the cathode electrode layer being electrically connected to a second portion of the circuit pattern; and   a transparent resin located between the first flexible member and the second flexible member, and surrounding the one or more light-emitting elements.   
     
     
         22 . The light-emitting device according to  claim 21 , wherein a light transmittance of the first flexible member is not less than 1% and not more than 80%. 
     
     
         23 . The light-emitting device according to  claim 21 , wherein a light transmittance of the second flexible member is not less than 1% and not more than 80%. 
     
     
         24 . The light-emitting device according to  claim 21 , wherein at least one of the first flexible member or the second flexible member comprises at least one type of resin selected from the group consisting of polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyethylene succinate, arton, and acrylic. 
     
     
         25 . The light-emitting device according to  claim 21 , wherein the one or more light-emitting elements comprise a plurality of light-emitting elements that are electrically connected to the circuit pattern. 
     
     
         26 . The light-emitting device according to  claim 21 , wherein a thickness of each light-emitting element is not less than 90 μm and not more than 290 μm, in a direction from the first flexible member to the second flexible member. 
     
     
         27 . The light-emitting device according to  claim 21 , wherein a thickness of the first flexible member is not less than 50 μm and not more than 300 μm. 
     
     
         28 . The light-emitting device according to  claim 21 , wherein a thickness of the second flexible member is not less than 50 μm and not more than 300 μm. 
     
     
         29 . The light-emitting device according to  claim 21 , wherein the circuit pattern comprises at least one type of metal selected from the group consisting of gold, silver, and copper. 
     
     
         30 . The light-emitting device according to  claim 21 , wherein a part of the transparent resin is located between the second flexible member and the one or more light-emitting elements. 
     
     
         31 . A light-emitting device, comprising:
 a first member;   a second member;   a circuit pattern disposed on the first member;   one or more light-emitting elements located between the first member and the second member, each light-emitting element comprising an anode electrode layer and a cathode electrode layer, the anode electrode layer being electrically connected to a first portion of the circuit pattern, the cathode electrode layer being electrically connected to a second portion of the circuit pattern; and   a transparent resin located between the first member and the second member, and surrounding the light-emitting element; wherein:   a light transmittance of at least one of the first member or the second member is not less than 1% and not more than 80%.   
     
     
         32 . The light-emitting device according to  claim 31 , wherein a light transmittance of each of the first member and the second member is not less than 1% and not more than 80%. 
     
     
         33 . The light-emitting device according to  claim 31 , wherein at least one of the first member or the second member comprises at least one type of resin selected from the group consisting of polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyethylene succinate, arton, and acrylic. 
     
     
         34 . The light-emitting device according to  claim 31 , wherein the one or more light-emitting elements comprise a plurality of light-emitting elements that are electrically connected to the circuit pattern. 
     
     
         35 . The light-emitting device according to  claim 31 , wherein a thickness of each light-emitting element is not less than 90 μm and not more than 290 μm, in a direction from the first member to the second member. 
     
     
         36 . The light-emitting device according to  claim 31 , wherein a thickness of the first member is not less than 50 μm and not more than 300 μm. 
     
     
         37 . The light-emitting device according to  claim 31 , wherein a thickness of the second member is not less than 50 μm and not more than 300 μm. 
     
     
         38 . The light-emitting device according to  claim 31 , wherein the circuit pattern comprises at least one type of metal selected from the group consisting of gold, silver, and copper. 
     
     
         39 . The light-emitting device according to  claim 31 , wherein a part of the transparent resin is located between the second member and the one or more light-emitting elements. 
     
     
         40 . The light-emitting device according to  claim 31 , wherein the first member and the second member are flexible.