Patent ID: 7190114
Filing Date: 2007-03-13
Classification: H01L

Abstract:
1. A light emitting display device comprising: a thin film transistor formed over a substrate; a first insulating film comprising an organic material and formed over the thin film transistor; a second insulating film comprising an inorganic material and formed over the first insulating film; an anode formed in contact with the second insulating film; a light emitting layer formed over the anode; and a cathode formed over the light emitting layer, wherein a thermal expansion coefficient of the inorganic material of the second insulating film is smaller than that of the organic material of the first insulating film, wherein the thermal expansion coefficient of the inorganic material of the second insulating film is greater than that of the anode, wherein the anode comprises at least one material selected from the group consisting indium oxide, zinc oxide and indium tin oxide, wherein the first insulating film comprises at least one material selected from the group consisting of polyimideamide and benzocyclobutene, and wherein the second insulating film comprises at least one material selected from the group consisting of silicon nitride, silicon nitride oxide, silicon oxynitride, aluminum nitride, aluminum nitride oxide, and aluminum oxynitride.