Patent ID: 8278664

Claim:
An organic light emitting display device, comprising: a substrate; a first thin film transistor formed over the substrate; an electrically conductive line formed over the substrate, wherein the electrically conductive line is configured to provide power to the first thin film transistor; a planarization layer formed over the first thin film transistor and the electrically conductive line; a pixel electrode formed on and contacting the planarization layer; an organic light emitting layer formed over the pixel electrode; and a first interconnection electrically interconnecting the electrically conductive line and the first thin film transistor, wherein the first interconnection comprises: a first portion formed on and contacting the planarization layer, a second portion connecting the first portion and the electrically conductive line through the planarization layer, and a third portion connecting the first portion and a part of the first thin film transistor, wherein the first thin film transistor comprises a source, a drain and a channel located therebetween, wherein the electrically conductive line is located below the source, the drain and the channel, and wherein the pixel electrode is formed of a material and the first interconnection is formed of the material.