| 摘要 |
PROBLEM TO BE SOLVED: To form a uniform organic EL thin film by controlling the organic EL film thickness in a picture element in a manufacturing of organic EL element by an ink-jet method. SOLUTION: In a fixed area surrounded by banks 32, 33, an ink composition 35 is ejected from an ink jet head 34 and a film is formed. Next, an ink composition 37 having a solid content concentration not more than that of the ink composition 35 that have been ejected in the last time, to form an organic EL thin film of uniform and desired thickness in the pixel.
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