| 主权项 |
1. An organic light emitting device, comprising:
a substrate; a lower electrode disposed on the substrate; an upper electrode; and an organic compound layer comprising an emission layer, which is interposed between the lower electrode and the upper electrode, wherein the organic compound layer covers the lower electrode, wherein the upper electrode covers the organic compound layer, wherein the substrate comprises an electrode pad portion, which is electrically connected to wiring connected to the upper electrode, wherein a portion of the organic compound layer that is formed in a region between the lower electrode and the electrode pad portion has a film end, and, when an angle formed by a slant in section of the film end and a surface of the substrate is given as θ1, Formula (1) and Formula (2) are satisfied, and wherein a portion of the organic compound layer that is formed in at least a part of other regions than the region between the lower electrode and the electrode pad portion has a film end, and, when an angle formed by a slant in section of the film end and the surface of the substrate is given as θ3, Formula (3) and Formula (4) are satisfied,
tan(θ1)=d1/d2 (1)tan(θ1)<0.2 (2)tan(θ3)=d3/d4 (3)tan(θ3)≧0.2 (4) the symbols d1 and d2 in Formula (1) representing a thickness of the organic compound layer and a taper width in section of the film end of the organic compound layer, respectively, the symbols d3 and d4 in Formula (3) representing a thickness of the organic compound layer and a taper width in section of the film end of the organic compound layer, respectively. |
