Flat panel display device and method of making the same

A method of making a display device, the method comprising:

• providing a first substrate comprising a substrate and a structure formed on the first substrate, the structure comprising a first conductive line, an insulating layer, a second conductive line and a protective layer, wherein the insulating layer is interposed between the first substrate and the protective layer, wherein the first conductive line is buried between the first substrate and the insulating layer, wherein the second conductive line is buried between the protective layer and the insulating layer, wherein the first conductive line generally extends in a first direction and comprises a first portion, wherein the second conductive line generally extends in the first direction comprises a second portion, the second conductive line having a width in the second portion thereof, the width being measured in a second direction perpendicular to the first direction, the first portion overlapping with the second portion when viewed in a third direction from the first substrate, the third direction being perpendicular to the first and second directions;
• selectively etching a portion of the structure so as to expose the second portion of the second conductive line;
• arranging a second substrate so as to oppose the first substrate;
• and
• interposing a frit between the first substrate and second substrate, wherein the frit comprises a first portion interposed between the protective layer and the second substrate, and wherein the frit comprises a second portion interposed between the second substrate and the second portion of the second conductive line.