| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily provide firm contact between an auxiliary wire compensating for the high resistance of a common electrode and the common electrode in an organic EL display device without a mask deposition process. <P>SOLUTION: Pixel electrodes 2 and a bank 3 are formed on the main surface of the support board 1. The auxiliary wire 6 is disposed on the bank 3, and is composed of three layers consisting of a lower layer 8, a middle layer 9, and an upper layer 10, which overhangs the middle layer 9 to form an eaves concealing the middle layer 9 from above. An organic film 4 vapor deposited on the upper layer 10 of the pixel electrodes 2 is not deposited on the middle layer 9 due to a shadowing effect by the eaves of the upper layer 10. When the transparent common electrode 5 is formed thereon by sputtering, the common electrode 5 wraps around the inside of the organic film 4 and is deposed on the under layer 8 of the auxiliary wire 6 for firm contact. <P>COPYRIGHT: (C)2008,JPO&INPIT |
