To improve reliability of a lighting device using an electroluminescent material. In a lighting device which includes a light-emitting element containing an electroluminescence (EL) layer, a first housing is provided on a light emission surface of the light-emitting element, a metal plate and a second housing covering the metal plate are provided over a top surface of the light-emitting element, and the first housing is connected to both the metal plate and the second housing, whereby the light-emitting element is doubly sealed. Further, a depressed portion is provided for the first housing in a region in contact with the metal plate or a region in contact with the second housing through an adhesive layer; thus, adhesion between the housings is improved.
Lighting device
2015-11-17
Patent
Electronic Resource
English
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21K Nicht-elektrische Lichtquellen unter Verwendung von Lumineszenz , NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / F21Y Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES |
European Patent Office | 2019
|European Patent Office | 2017
|European Patent Office | 2015
|European Patent Office | 2018
|European Patent Office | 2018
|