Organic light-emitting display apparatus sealed with a sealant containing a filler
View Patent ↗An organic light-emitting display apparatus including: a substrate; a display unit disposed on the substrate; an encapsulation substrate disposed on the display unit; and a sealant by which the substrate is combined with the encapsulation substrate and which includes a filler, wherein a height of the sealant is greater than a height of the filler.
1. An organic light-emitting display apparatus comprising:
a substrate;
a display unit disposed on the substrate;
an encapsulation substrate disposed facing the display unit;
a sealant disposed between the substrate and the encapsulation substrate; and
a sole rectangular shaped filler disposed in the sealant,
wherein the height t frit of the sealant is greater than the height d filler of the filler, and the heights t frit and d filler extend in a direction perpendicular to the plane of the substrate.
2. The organic light-emitting display apparatus of claim 1 , wherein a ratio of the height d filler of the filler to the height t frit of the sealant is 0.75 or less.
3. The organic light-emitting display apparatus of claim 2 , wherein the ratio of the height t frit of the sealant to the height d filler of the filler is 0.5 or less.
4. The organic light-emitting display apparatus of claim 1 , wherein the sealant comprises a glass frit.
5. The organic light-emitting display apparatus of claim 1 , wherein the filler is disposed at the center of the sealant, equidistant from the substrate and the encapsulation substrate.
6. The organic light-emitting display apparatus of claim 1 , wherein the filler is cylindrical.
7. The organic light-emitting display apparatus of claim 1 , wherein the sealant is disposed around the display unit.
8. The organic light-emitting display apparatus of claim 1 , wherein the filler is generally rectangular.
9. The organic light-emitting display apparatus of claim 8 , wherein corners of the filler are rounded.
10. The organic light-emitting display apparatus of claim 1 , wherein the filler comprises a ceramic material.
11. The organic light-emitting display apparatus of claim 1 , wherein the filler has a lower coefficient of thermal expansion (CTE) than the sealant.
12. The organic light-emitting display apparatus of claim 1 , wherein the filler is disposed directly on the substrate or directly on the encapsulation substrate.