Barrier film composite and display apparatus including the barrier film composite
View Patent ↗A barrier film composite includes a decoupling layer and a barrier layer. The barrier layer includes a first region and a second region that is thinner than the first region.
1. A stretchable barrier film composite, comprising alternately stacked layers of at least one decoupling layer and at least two barrier layers,
each of the barrier layers comprising a first region and a second region,
the second region being entirely a permeation barrier and having varying thicknesses which are thinner than that of the first region, and
none of the second regions in each barrier layer overlaps with the second regions of the adjacent barrier layers.
2. The stretchable barrier film composite of claim 1 , the barrier layer comprising an inorganic material.
3. The stretchable barrier film composite of claim 2 , the barrier layer comprising at least one selected from the group consisting of individual metals, mixtures of at least two metals, inter-metallics, alloys, metal and mixed metal oxides, metal and mixed metal fluorides, metal and mixed metal nitrides, metal and mixed metal carbides, metal and mixed metal carbonitrides, metal and mixed metal oxynitrides, metal and mixed metal borides, metal and mixed metal oxyborides, metal and mixed metal silicides, and combinations thereof.
4. The stretchable barrier film composite of claim 1 , the first region and the second regions comprising the same material.
5. The stretchable barrier film composite of claim 1 , the second region comprising a material having a mechanical strength smaller than that of a material of the first region.
6. The stretchable barrier film composite of claim 1 , the thickness of the second region decreasing from the sides toward a center of the second region.
7. The stretchable barrier film composite of claim 1 , the barrier layer comprising a plurality of second regions.
8. The stretchable barrier film composite of claim 7 , a distance between the centers of a pair of adjacent second regions being the same for every pair of adjacent second regions.
9. The stretchable barrier film composite of claim 1 comprising tin.
10. The stretchable barrier film composite of claim 1 , further comprising a thin layer of nanoparticles of an inorganic oxide or nitride covering the barrier layer.
11. A display apparatus having the barrier film composite of claim 1 , comprising:
a first substrate;
a second substrate disposed opposite to the first substrate; and
a light-emitting device between the first substrate and the second substrate,
at least one of the first substrate and the second substrate comprising the barrier film composite.
12. The display apparatus of claim 11 , the light-emitting device comprising an organic light-emitting device.
13. The display apparatus of claim 11 , the barrier layer comprising an inorganic material.
14. The display apparatus of claim 11 , the second region comprising a material having a mechanical strength smaller than that of a material of the first region.
15. The display apparatus of claim 11 , the thickness of the second region decreasing from the sides toward a center of the second region.
16. The display apparatus of claim 11 , the barrier film composite comprising alternating layers of at least one decoupling layer and at least one barrier layer.
17. The display apparatus of claim 11 , at least one of the first substrate and the second substrate without the flexible barrier film composite.