Organic electro-luminescence device and method for manufacturing organic electro-luminesence device
A manufacturing method and organic technology, applied in lighting devices, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as deterioration of organic EL elements, achieve high luminous yield, and improve long-term stability.
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Embodiment approach 1
[0042] figure 1 It is a schematic cross-sectional view of an example of the structure of the organic EL device of this embodiment. As shown in the figure, the organic EL device 100 has an inorganic insulating layer 102 and an organic insulating layer 103 sequentially laminated on a conductive substrate 101 , and has an organic EL element 110 on the organic insulating layer 103 . The organic insulating layer 103 and the organic EL element 110 are surface-sealed using the sealing layer 151 and the sealing plate 152 as the sealing material 150 . The organic insulating layer 103 on which the organic EL element 110 is formed is arranged inside the sealing layer 151 so as not to be exposed from the sealing layer 151 . In the organic EL element 110 , electrons and holes are combined in the organic EL layer 112 by an electric current supplied from the outside through the anode 111 and the cathode 113 , and light is emitted by the excitation energy generated by the combination. In th...
Embodiment approach 2
[0057] image 3 It is a schematic cross-sectional view showing an example of the structure of the organic EL device of this embodiment. exist image 3 in, right with figure 1 The same parts are marked with the same symbols. The side surface of the organic insulating layer 103 of this organic EL device 100A forms a tapered surface 103T inclined toward the inside from the lower side to the upper side. The tapered surface 103T preferably forms an angle in the range of 1° to 50° with the surface of the conductive substrate 101 . Figure 4 is the vicinity of the side of the organic insulating layer 103 ( image 3 T) Magnified illustration of region T). The angle refers to the angle of the portion where the extension of the cross-sectional line of the side surface of the organic insulating layer 103 intersects with the surface of the conductive substrate 101 (angle A in the figure). If the above-mentioned angle exceeds 50 degrees, disconnection of the electrode (anode 111 or c...
Embodiment 1
[0071] [Making of insulating layer]
[0072] A stainless steel (SUS) substrate (SUS304, thickness 50 μm) was prepared as a conductive substrate for producing an organic EL element. SiO is formed on the SUS substrate by sputtering 2 layer (inorganic insulating layer, thickness 0.3 μm). Further, a norbornene resin (manufactured by Zeon Co., Ltd., trade name "ZEOCOAT") was coated thereon with a wire bar, and prebaked at 100° C. for 5 minutes. Then, the norbornene resin layer is patterned by photolithography so that the norbornene resin layer is not exposed to the outside after being sealed with a sealing material. In the photolithography method, a predetermined pattern is exposed, and a TMAH (tetramethylammonium hydroxide) aqueous solution is used as a developing solution. The patterned norbornene resin layer was post-baked at 220° C. for 1 hour to obtain a patterned organic insulating layer with a thickness of 3 μm. Thereafter, a washing process was performed with pure water...
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Abstract
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