A composition for an organic EL element which can form a high precision pattern in a simple manner and in a short time and a method of manufacturing the organic EL element are disclosed. By using the composition, optimum film design and luminescence characteristic can be easily obtained, and an adjustment of a luminescence efficiency can also be easily performed. The composition for an organic EL element comprises a precursor of a conjugated organic polymer compound for forming at least one luminescent layer (106), (107), (108) having a certain color and at least one kind of fluorescent dye for changing the luminescence characteristic of the luminescent layer. The luminescent layer is made from a pattern formed by an ink-jet method. As for the precursor, a precursor of PPV, PPV derivative or the like is preferably used. Further, it is preferable that the composition for the organic EL element satisfies at least one of the conditions including a contact angle of 30 to 170degrees with respect to a nozzle surface of a nozzle provided in a head of an ink-jet device used for the ink-jet method for discharging the composition, a viscosity of 1 to 20cp and a surface tension of 20 to 70dyne/cm.
本发明公开了一种能以简单的方式在短时间内形成高精度图案的有机 EL 元件组合物以及制造该有机 EL 元件的方法。通过使用该组合物,可以轻松获得最佳的薄膜设计和发光特性,还可以轻松调整发光效率。有机 EL 元件组合物包括用于形成至少一个具有特定颜色的发光层 (106)、(107)、(108) 的共轭有机聚合物化合物前体,以及用于改变发光层发光特性的至少一种荧光
染料。发光层由喷墨方法形成的图案制成。至于前驱体,最好使用 PPV、PPV 衍
生物或类似物质的前驱体。此外,有机电致发光元件的组合物最好满足至少一个条件,包括相对于用于喷墨方法的喷墨装置头部的喷嘴表面的接触角为 30 至 170 度,粘度为 1 至 20cp,表面张力为 20 至 70dne/cm。