Organic light emitting display device and method of manufacturing thereof
View Patent ↗Provided are an organic light-emitting display device and a manufacturing method of the organic light emitting display device. The organic light-emitting display device includes: a substrate; a display unit formed on the substrate; an encapsulation substrate formed above the display unit; a first sealant bonding the substrate and the encapsulation substrate; a filler formed between the substrate and the encapsulation substrate; and a second sealant interposed between the first sealant and the filler so as to separate the filler from the first sealant, wherein a distance of a portion of the substrate and the encapsulation substrate is smaller than that of other portions of the substrate and the encapsulation substrate. Accordingly, penetration of impurities, such as oxygen or water, from the outside into the organic light emitting display device is prevented.
1. An organic light-emitting display device comprising:
a substrate;
a display unit comprising one or more electrodes formed on the substrate;
an encapsulation substrate formed above the display unit;
a first sealant configured to bond the substrate and the encapsulation substrate;
an insulating filler contacting the one or more electrodes and the substrate and formed between the substrate and the encapsulation substrate; and
a second sealant interposed between the first sealant and the filler so as to separate the filler from the first sealant,
wherein the distance between a portion of the substrate and the encapsulation substrate is smaller than of the distance between other portions of the substrate and the encapsulation substrate; and
wherein the insulating filler comprises at least one selected from the group consisting of a urethane resin, an acrylic resin, an inorganic sealant, a urethane acrylate, a butyl acrylate and an ethylhexyl acrylate.
2. The organic light-emitting display device of claim 1 , wherein a first distance in a region between the substrate and the encapsulation substrate, where the filler is formed, is smaller than a second distance in a region between the substrate and the encapsulation substrate, where the filler is not formed.
3. The organic light-emitting display device of claim 1 , wherein a first thickness in a center portion of the filler is smaller than a second thickness in an edge portion of the filler.
4. The organic light-emitting display device of claim 3 , wherein the first thickness is about 95% or less than the second thickness.
5. The organic light-emitting display device of claim 1 , wherein the volume of the filler formed between the substrate and the encapsulation substrate is smaller than the volume of a space formed by the substrate, the encapsulation substrate, and the second sealant.
6. The organic light-emitting display device of claim 5 , wherein the volume of the filler formed between the substrate and the encapsulation substrate is from about 60 to about 95% of the volume of the space formed by the substrate, the encapsulation substrate, and the second sealant.
7. The organic light-emitting display device of claim 1 , wherein the filler is formed to fill the space between the substrate and the encapsulation substrate.
8. The organic light-emitting display device of claim 7 , wherein the filler is formed to cover the display unit.