Method of manufacturing substrate and organic emitting display device having the substrate
View Patent ↗Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes a substrate; an sealing substrate facing the substrate, an organic light emitting unit disposed between the substrate and the sealing substrate and having a plurality of organic light emitting devices emitting light, and a plurality of grooves formed in a light extracting surface of the organic light emitting display device through which the light is emitted to the outside. In one embodiment, the grooves are formed on the sealing substrate, and in another embodiment, the grooves are formed on the substrate.
1. A method of manufacturing a substrate, the method comprising:
providing a substrate;
forming a plurality of scratches in a surface of the substrate, the scratches being separated from each other; and
spraying an etchant onto the surface of the substrate to form a plurality of grooves from the scratches.
2. The method of claim 1 , wherein the scratches are formed at regular distances from each other.
3. The method of claim 1 , wherein the scratches are formed at irregular distances from each other.
4. The method of claim 1 , wherein the grooves are concavely formed with respect to the surface of the substrate.
5. The method of claim 1 , wherein the step of forming the plurality of grooves comprises:
etching the surface of the substrate by the etchant; and
cleansing the surface of the substrate.