| 摘要 |
PROBLEM TO BE SOLVED: To provide an element having high efficiency and high color purity and capable of realizing a high definition by forming picture element electrodes, a hole injection layer or a hole transport layer, red and green light emitting layers by an ink jet, a blue light emitting layer by application and a cathode in order on a transparent substrate. SOLUTION: Picture element electrodes 101, 102, 103 are formed on the transparent substrate 104 such as a glass substrate, and next, a barrier rib 105 is formed to fill up the respective pixel electrodes 101, 102, 103. Next, the hole injection layer or the hole transport layer 120 composed of an organic compound is formed on the respective pixel electrodes 101, 102, 103. Then a red light emitting layer 106 and a green light emitting layer 107 composed of an organic compound are formed as a pattern by an ink jet method, and a blue light emitting layer 108 composed of an organic compound is formed by an application method. Then a cathode 113 is formed to obtain an organic EL element. The ink jet method can easily perform fine patterning of a light emitting layer in a short time, and can easily and freely control light emitting capacity such as coloring balance and luminance.
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