Patent ID: 8371353
Filing Date: 2013-02-12
Classification: B32B,H01J,H01L

Abstract:
1. A sealing device for bonding a first substrate and a second substrate by interposing a sealing material along edges of the first substrate and the second substrate and by irradiating light on the sealing material, the sealing device comprising: a mask, disposed on the second substrate stacked on the first substrate, comprising a transmission portion formed in correspondence to the sealing material; and an optical head irradiating the light to the sealing material through the transmission portion of the mask, wherein the transmission portion of the mask comprises a plurality of patterns for regulating the light irradiated to the sealing material; wherein the transmission portion comprises a first region with a predetermined constant transmittance at a central portion, a second region with a single predetermined transmittance constant throughout the second region provided on both sides of the first region, and a third region with a single predetermined transmittance constant throughout the third region provided on both outer sides of the second region, and wherein the transmittances of the patterns of the first region, the second region, and the third region are different from each other; wherein the first region, each part of the second region on either side of the first region and each part of the third region on either side of the second region are substantially the same size; and wherein the first, second, and third regions each comprise different line-shaped patterns comprising a plurality of opaque lines, and wherein the transmittance is controlled by density of the opaque lines of the patterns.