Patent ID: 7247982
Filing Date: 2007-07-24
Classification: H01L

Abstract:
1. An organic EL display device comprising: a substrate; an underlying layer formed on said substrate, said underlying layer including a flattening layer formed of organic materials and a passivation layer formed on the flattening layer and the substrate; organic EL elements formed on the passivation layer of said underlying layer; leading electrodes drawn out from said organic EL element for electrically connecting with an electrode of an interconnection object on said substrate; and connecting regions wherein the flattening layer composing said underlying layer at a location corresponding to a location of thermo-compression bonding is removed for electrically connecting said leading electrode with said electrode of the interconnection object without fail, wherein a flattening layer removal surface of the underlying layer adjacent to the connection region has an upward tapered surface inclined relative to the substrate.