Patent ID: 8125146

Claim:
An organic light emitting display device, comprising: a flat first substrate having a plate-like shape; a flat second substrate having a plate-like shape and opposing the first substrate; an array of organic light emitting pixels interposed between the first and second substrates; and a stack of layers of glass frit portions, which forms a closed loop surrounding the array and interposed between the first and second substrates, wherein the stack of layers of glass frit portions comprises a first glass frit portion and a second glass frit portion, wherein the first glass frit portion is interposed between the first substrate and the second glass frit portion, and the second glass frit portion is interposed between the first glass frit portion and the second substrate, wherein the second glass frit portion comprises a material that melts substantially easier than the first glass frit portion upon irradiation of a laser or infrared beam thereto, and wherein the first glass frit portion and a surface of the first substrate contacting the first glass frit portion have different compositions, wherein the first glass frit portion comprises a material and the second glass frit portion comprises the same material, wherein each of the first and second glass frit portions comprises a light-to-heat conversion material configured to generate heat upon receiving the laser or infrared beam, and wherein the second glass frit portion comprises an amount of the light-to-heat conversion material substantially more than the first glass frit portion.