Patent ID: 8735909
Filing Date: 2014-05-27
Classification: H01L

Abstract:
1. A light emitting device comprising: a pixel portion including a thin film transistor, a wiring, and a power source line formed over a substrate; and a terminal portion provided on periphery of the pixel portion, wherein the wiring is configured to transmit a video signal, and the wiring is electrically connected to one of source or drain of the thin film transistor, wherein each of the wiring and the power source line includes a first conductive film and a second conductive film laminated on the first conductive film, wherein the first conductive film includes titanium and the second conductive film includes copper, wherein the terminal portion includes a terminal including a third conductive film and a fourth conductive film laminated on the third conductive film, and wherein the third conductive film includes titanium and the fourth conductive film includes copper.