DISPLAY DEVICE, AND MANUFACTURING METHOD OF DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a manufacturing method of a display device equipped with an organic electroluminescent element in which collective removal of organic layers formed on an auxiliary wiring in high precision is possible, and by this, yield improvement and productivity improvement can b...

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Hauptverfasser: MATSUDA EISUKE, HIRANO TAKAYUKI, TO YOICHI, MATSUO KEISUKE, SHIBAZAKI TAKANOBU, OZAWA NOBUO, NAKAYAMA TETSUO, ISHIBASHI TADASHI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a manufacturing method of a display device equipped with an organic electroluminescent element in which collective removal of organic layers formed on an auxiliary wiring in high precision is possible, and by this, yield improvement and productivity improvement can be achieved, and provide the display device obtained by this. SOLUTION: The lower part electrode 4 is pattern-formed at respective pixels a on a substrate 2. An auxiliary wiring N with a constitution that is provided with a light-absorbing layer 9 composed of a conductive material having a higher light absorbance than that of the lower part electrode 4 is formed between respective pixels a. An organic layer 5 is formed in a state covering the lower part electrode 4 on the substrate 2 at which the lower electrode 4 and the auxiliary wiring N have been formed. Laser beam is converted into heat at the light absorbing layer 9 exposed to the lower part of the organic layer 5 by irradiation of the laser beam from the organic layer 5 side, and the organic layer 5 part on the upper part of the light absorbing layer 9 is selectively removed. The organic layer 5 is made to be pinched between the lower part electrode 4, and on the light absorbing layer 9 part where the organic layer 5 has been removed, the upper part electrode 6 connected to the auxiliary wiring N is formed on the substrate 2. COPYRIGHT: (C)2007,JPO&INPIT