Patent ID: 7638803

Claim:
A flat panel display device comprising: a first substrate; a light emitting unit comprising: a thin film transistor positioned on the first substrate; a first electrode electrically connecting with the thin film transistor; a second electrode opposing the first electrode; and an organic emission layer or a liquid crystal layer interposed between the first and second electrodes; a second substrate sealed with the first substrate by an ultraviolet curing sealant, and having a greater thermal expansion coefficient than the first substrate; a first insulating film positioned on any one of an outer and inner surface of the first substrate, wherein the first insulating film has a first thermal expansion coefficient; and a second insulating film formed on any one of an outer and inner surface of the second substrate, wherein the second insulating film has a second thermal expansion coefficient, wherein the thermal expansion coefficient between the first insulating film and the second insulating film is different from each other to cancel the difference of the thermal expansion coefficient between the first substrate and the second substrate.