Patent ID: 8339030

Claim:
An organic EL device on a substrate, the device comprising: a signal line; a power source line that has a first width; a light-emitting element to which a current or a voltage is supplied during a period in which the power source line is electrically connected to the light-emitting element; and a plurality of first external connection terminals through which the power source line is electrically connected to an external element, each of the plurality of first external connection terminal having a second width, the plurality of first external connection terminals including: one first external connection terminal that is positioned at an outmost position among the plurality of first external connection terminals; and another first external connection terminal that is positioned at an outmost position among the plurality of first external connection terminals, the another first external connection terminal being positioned opposite to the one first external connection terminal, the first width being greater than the second width, and a distance between an outmost edge of the one first external connection terminal and an outmost edge of the another first external connection terminal being equal to or smaller than the first width.