| 摘要 |
The invention is directed to improving of reliability in resistance to temperature changes by preventing a desiccant layer from peeling off or tearing in an organic EL panel. A pocket portion is formed by etching a sealing glass substrate with hydrofluoric acid by using a plurality of resist patterns disposed in a matrix as a mask. Then, concaves and convexes are formed on a bottom of the pocket portion, i.e. on a surface of the sealing glass substrate. A desiccant layer is formed on the bottom of the pocket portion. By rough-surfacing as above, the anchor effect is generated to increase adhesive force of the desiccant layer to the sealing glass substrate, preventing the desiccant layer from peeling off the sealing substrate.
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