Organic light emitting display and method for manufacturing the same
View Patent ↗Disclosed is an organic light emitting display and a method for manufacturing the same capable of preventing external moisture or oxygen from being penetrated into an organic light emitting diode. In particular, disclosed is an organic light emitting display comprising an organic light emitting diode array comprising a light emitting diode formed over a substrate and an organic emission layer between a first electrode and a second electrode, a sealing cover comprising at least one organic film and at least one inorganic film, and a sealing material formed along an edge of the sealing cover for sealing a boundary of the substrate and the sealing cover and a boundary of the organic film and the inorganic film of the sealing cover.
1. An organic light emitting display comprising:
an organic light emitting diode array comprising a light emitting diode formed over a substrate and an organic emission layer between a first electrode and a second electrode;
a sealing cover comprising at least one organic film and at least one inorganic film; and
a sealing material formed along an edge of the sealing cover for sealing a boundary of the substrate and the sealing cover and for further contacting the organic film and the inorganic film of the sealing cover,
wherein the sealing material is in contact with the substrate and sealing cover and comprises a frit.
2. The organic light emitting display as claimed in claim 1 , wherein at least one of said organic film and inorganic film contacts the organic light emitting diode array.
3. The organic light emitting display as claimed in claim 1 , further comprising a passivation layer formed on one of the first and second electrodes of the organic light emitting diode array.
4. The organic light emitting display as claimed in claim 3 , wherein at least one of said organic film and said inorganic film contacts said passivation layer.
5. The organic light emitting display as claimed in claim 1 , wherein the organic film of the sealing cover comprises at least one material selected from the group consisting of epoxy, acrylate, and urethaneacrylate.
6. The organic light emitting display as claimed in claim 1 , wherein the inorganic film of the sealing cover comprises at least one material selected from the group consisting of Al x O y and Si x O y , where x and y are integers.
7. The organic light emitting display as claimed in claim 1 , wherein the sealing cover comprises two or more organic films and two or more inorganic films, wherein each of said two or more organic films is alternately disposed with each of said two or more inorganic films.
8. The organic light emitting display as claimed in claim 1 , wherein the sealing cover comprises five organic films and five inorganic films which are alternately disposed.
9. The organic light emitting display as claimed in claim 1 , wherein the sealing cover has a thickness ranging from about 1 to about 10 μm.
10. The organic light emitting display as claimed in claim 1 , wherein the frit comprises at least one material selected from the group consisting of: K 2 O, Fe 2 O 3 , Sb 2 O 3 , ZnO, P 2 O 5 , V 2 O 5 , TiO 2 , Al 2 O 3 , WO 3 , SnO, PbO, MgO, CaO, BaO, Li 2 O, Na 2 O, B 2 O 3 , TeO 2 , SiO 2 , Ru 2 O, Rh 2 O, CuO, and Bi 2 O 2 .
11. The organic light emitting display as claimed in claim 1 , wherein the sealing material generally surrounds the organic light emitting diode array.