The present invention provides an organic electroluminescent element in which visibility of emitted light is high and brightness is uniform when being viewed from a rear vehicle. The organic electroluminescent element of the present invention comprises: a flexible substrate (16); a positive electrode (11) installed on the flexible substrate (16); first and second light emitting units (12, 14) installed on the positive electrode (11), and including a light emitting layer; and a negative electrode (15) installed on the first and second light emitting units (12, 14). In a light distribution characteristic of the light emitted to the outside, front brightness L1, brightness at a viewing angle of 20 degrees L2 and brightness at a viewing angle of 60 degrees L3 are adjusted so as to satisfy relationships of 0.85 <= L2/L1 <= 1.20 or L3/L1 <= 0.45.
본 발명은 후방 차량에서 보았을 때의 발광 광의 시인성이 높고, 밝기가 균일하게 보이는 유기 일렉트로루미네센스 소자를 제공하는 것이다. 본 발명의 유기 일렉트로루미네센스 소자는 플렉시블 기판(16)과, 플렉시블 기판(16) 상에 설치된 양극(11)과, 양극(11) 상에 설치되고, 발광층을 포함하는 제1 및 제2 발광 유닛(12, 14)과, 제1 및 제2 발광 유닛(12, 14) 상에 설치된 음극(15)을 구비하고, 외부에 출사하는 광의 배광 특성에서, 정면 휘도 L1, 시야각 20도의 휘도 L2 및 시야각 60도의 휘도 L3이, 0.85≤L2/L1≤1.20 또한 L3/L1≤0.45의 관계를 만족하도록 조정되어 있는 것을 특징으로 한다.
ORGANIC ELECTROLUMINESCENT ELEMENT AND LIGHTING UNIT FOR A VEHICLE
유기 일렉트로루미네센스 소자 및 차량용 등기구
2018-08-09
Patent
Electronic Resource
Korean
IPC: | F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / 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 / F21W Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend den Gebrauch oder Einsatz von Leuchten oder Beleuchtungssystem , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS / 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 / H10K |
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