High temperature encapsulated electroluminescent lamp
First Claim
1. An electroluminescent lamp comprisinga layer of electroluminescent material disposed between a pair of electrodes, at least one of said electrodes being capable of transmitting light emitted by the electroluminescent material therethrough;
- at least one layer of a primary encapsulant material encasing at least one of said pair of electrodes;
at least one layer of substantially transparent polymeric film material encasing said at least one layer of primary encapsulant material; and
at least one layer of a secondary encapsulant material encasing said at least one layer of polymeric film material.
3 Assignments
0 Petitions
Accused Products
Abstract
An electroluminescent lamp assembly wherein the basic lamp electrode structure is encased in at least one layer of a primary encapsulant material and at least one layer of a secondary encapsulant material, a layer of substantially transparent polymeric film material, which is thermally stable up to temperatures of at least 300° F., being disposed between the primary and secondary encapsulants. The polymeric film material is bonded to the primary encapsulant using a silane agent to enhance the adhesion thereto. In a preferred embodiment of the lamp assembly a gas suppressant agent is included in the electroluminescent material and the light transmitting electrode thereof has a substantially transparent and infusible coating of a polymeric material having release characteristics on its exterior surface, such coating providing an unbonded contact between such electrode and the layer of material adjacent thereto. In a further embodiment thereof the terminal leads attached to the electrodes are coated at their contact areas with a powdered solder in a curable and infusible thermosetting binder which coated areas form solder joints during the sealing of the encapsulant of the lamp assembly.
-
Citations
19 Claims
-
1. An electroluminescent lamp comprising
a layer of electroluminescent material disposed between a pair of electrodes, at least one of said electrodes being capable of transmitting light emitted by the electroluminescent material therethrough; -
at least one layer of a primary encapsulant material encasing at least one of said pair of electrodes; at least one layer of substantially transparent polymeric film material encasing said at least one layer of primary encapsulant material; and at least one layer of a secondary encapsulant material encasing said at least one layer of polymeric film material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification