Organic electroluminescent device without cap and getter
View Patent ↗An organic electroluminescent device is provided. The structural components of the organic electroluminescent device can be excluded from external conditions without using a cap and whose thickness can be remarkably reduced without installing a getter. The organic electroluminescent device as embodied has the structure that a protective layer with a multi-layered structure is formed on the entire structure of the structural components to exclude the structural components completely from external conditions. The protective layer is consisted of an organic material layer formed on the structural components of the device, an inorganic material layer formed on the organic material layer, and a coating layer formed on the inorganic material layer. The coating layer formed on the inorganic material layer is made from titanium aluminum nitride (TiN).
1. An organic electroluminescent device comprising:
a glass substrate;
an electroluminescence element formed on a portion of the glass substrate;
an organic material layer formed on the substrate to enclose the electroluminescence element;
an inorganic material layer formed on the organic material layer;
a coating layer directly formed on the inorganic material layer;
an electrode directly formed on the coating layer; and
a wire connected to the electrode and being grounded to discharge static electricity generated in the electroluminescence element through the organic material layer, the inorganic material layer and coating the layer,
wherein the coating layer has a stack structure including titanium nitride layer and an aluminum nitride layer which are directly contacted with each other in order to completely separate the electroluminescence from environmental conditions.