Composition for an organic el element and method of manufacturing the organic EL element
a technology of organic el and manufacturing method, which is applied in the direction of bridges, other domestic articles, bridge structural details, etc., can solve the problems of difficult to obtain homogeneous defect-free thin films by vapor deposition method, difficult to select raw materials, and inefficient vapor deposition method, etc., to achieve high precision patterning, simple method, and short time
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example 1
[0106] The compositions for the organic EL element made from the compositions shown in Table 1 were prepared for respective colors, and then the organic EL element was manufactured using the compositions.
[0107] As shown in FIG. 1, on the glass substrate 104, ITO transparent pixel electrodes 101, 102 and 103 were formed by means of photolithography so as to form respectively a pattern having a pitch of 100 μm and a thickness of 0.1 μm.
[0108] Then, banks 105 made of photosensitive polyimide were formed by photolithography so as to bury the spaces between the ITO transparent pixel electrodes. In this case, each of the banks 105 was designed so as to have a width of 20 μm and a thickness of 2.0 μm, respectively.
[0109] Further, the luminescent materials for the respective colors were coated to form patterns by jetting the compositions from the head 110 of the ink-jet device 109. Then, they were undergone heat treatment under a nitrogen atmosphere at 150° C. for 4 hours to conjugate th...
example 2
[0112] The organic EL element was manufactured in the same way as Example 1 except that quinacridone of 0.075 wt % (ratio for solid portion of PPV precursor: 2 wt %) was added into the green luminescent layer composition as a fluorescent dye as shown in Table 2.
example 3
[0113] The organic EL element was manufactured in the same way as Example 1 except that rhodamine 101 was used as a fluorescent dye in the red luminescent layer composition as shown in Table 3.
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