Organic EL display device

摘要

A circuit unit is provided in which it is possible to connect circuit board to a terminal using a simple operation without removing a passivation film from above the terminal. A metal electrode which conducts with a circuit element is formed above a substrate. Multiple column shaped insulation films are each formed at a uniform pitch in two intersecting directions above the surface of the metal electrode. A metal electrode is formed above the metal electrode including the insulation film. A passivation film is formed on a surface of the metal electrode. Conductive beads are stuck between pairs of projection structured bodies formed on a surface of the passivation film, the passivation film on a side surface of the projection structure is scraped whereby the conductive beads conduct simultaneously with the metal electrode and an electrode formed on the circuit board.

主权项

1. An organic EL display device comprising:
a display area having an OLED element; a terminal provided outside of the display area and electrically connected to a flexible printed circuit board; and conductive beads provided between the terminal and the flexible printed circuit board; wherein the terminal comprises:
a first metal electrode formed above a substrate, a plurality of insulation films formed intermittently in a certain direction at an upper surface of the first metal electrode and overlapping the upper surface of the first metal electrode,a second metal electrode formed so as to cover a part of the upper surface of the first metal electrode and at least a part of a surface of the plurality of the insulation films, wherein, the first metal electrode extends continuously from one of the plurality of insulation films that has an upper surface covered by the second metal electrode to an adjacent one of the plurality of insulation films that has an upper surface covered by the second metal electrode, anda passivation film formed on at least a part of a surface of the second metal electrode; the passivation film has a plurality of projection structures, wherein at least two adjacent projection structures of the plurality of projection structures have wall surfaces facing each other and at least a first part of the second metal electrode is provided along a portion of a wall surface laterally opposite to one of the wall surfaces of the at least two adjacent projection structures and a second part of the second metal electrode is provided along a portion of a wall surface laterally opposite to the other one of the wall surfaces of the at least two adjacent projection structures; and the conductive beads are sandwiched between the two adjacent projection structures, and electrically connected to the second metal electrode, wherein a first side surface of the conductive beads and a second side surface of the conductive beads respectively contact with the first part of the second metal electrode and the second part of the second metal electrode.