Display apparatus and head-mounted electronic device including the same
A display apparatus includes a substrate including a plurality of pixel areas spaced from each other, and a plurality of non-pixel areas respectively located between neighboring pixel areas, a plurality of pixel electrodes respectively located in at least a part of the plurality of pixel areas, and a scattering layer on the plurality of pixel electrodes, and including a plurality of non-scattering areas respectively at a central portion of each of the plurality of pixel areas, and a plurality of scattering areas respectively between neighboring non-scattering areas.
1. A display apparatus comprising:
a substrate comprising a plurality of pixel areas spaced from each other, and a plurality of non-pixel areas respectively located between neighboring pixel areas from among the plurality of pixel areas;
a plurality of pixel electrodes respectively located in the plurality of pixel areas;
a plurality of emission layers respectively on the plurality of pixel electrodes;
a counter electrode located on the plurality of emission layers;
an encapsulation layer on the counter electrode;
a scattering layer above the encapsulation layer, the scattering layer having:
a plurality of non-scattering areas respectively at a central portion of a corresponding one of the plurality of pixel areas; and
a plurality of scattering areas respectively between neighboring non-scattering areas from among the plurality of non-scattering areas; and
a light-shielding layer between the encapsulation layer and the scattering layer, and having a plurality of openings that respectively overlap the plurality of non-scattering areas of the scattering layer.
2. The display apparatus of claim 1 , wherein the encapsulation layer comprises an insulating layer having a stack structure, and
wherein a layer of the insulating layer that is closest to the scattering layer comprises an inorganic layer.
3. The display apparatus of claim 2 , wherein the inorganic layer comprises silicon nitride.
4. The display apparatus of claim 1 , further comprising a buffer layer between the encapsulation layer and the scattering layer.
5. The display apparatus of claim 4 , wherein the encapsulation layer comprises an insulating layer having a stack structure, and
wherein a layer of the insulating layer that is closest to the buffer layer comprises an inorganic layer having a refractive index that is greater than a refractive index of the buffer layer.
6. The display apparatus of claim 5 , wherein at least a portion of the buffer layer contacts the encapsulation layer.
7. The display apparatus of claim 4 , wherein the light-shielding layer is between the encapsulation layer and the buffer layer.
8. The display apparatus of claim 1 , wherein the light-shielding layer comprises a light absorbing material.
9. The display apparatus of claim 1 , wherein the plurality of scattering areas has a higher rate of light scattering than the plurality of non-scattering areas.
10. The display apparatus of claim 9 , wherein the scattering layer comprises scattering particles that are configured to scatter incident light and that are either not located in the plurality of non-scattering areas, or are located in the plurality of non-scattering areas at a lower concentration than in the plurality of scattering areas.
11. A head-mounted electronic device comprising:
the display apparatus of claim 1 ;
a lens unit facing the display apparatus, and configured to:
enlarge an image displayed by the display apparatus to generate an enlarged image; and
refract the enlarged image in an eyeball direction of a user; and
a frame configured to accommodate the display apparatus and the lens unit, and configured to be worn on a user's head.
12. A display apparatus comprising:
a substrate comprising a plurality of pixel areas spaced from each other, and a plurality of non-pixel areas respectively located between neighboring pixel areas from among the plurality of pixel areas;
a plurality of pixel electrodes respectively located in the plurality of pixel areas;
an encapsulation layer above the plurality of pixel electrodes, and comprising an insulating layer having a stack structure;
a scattering layer above the encapsulation layer;
a buffer layer between the encapsulation layer and the scattering layer; and
a light-shielding layer between the encapsulation layer and the buffer layer, and having a plurality of openings,
wherein a layer of the insulating layer that is closest to the buffer layer comprises an inorganic layer having a refractive index that is greater than a refractive index of the buffer layer.
13. The display apparatus of claim 12 , further comprising:
a plurality of emission layers respectively located on the plurality of pixel electrodes; and
a counter electrode on the plurality of emission layers.
14. The display apparatus of claim 12 , wherein the inorganic layer comprises silicon nitride.
15. The display apparatus of claim 12 , wherein at least a portion of the buffer layer contacts the encapsulation layer.
16. The display apparatus of claim 12 , wherein the scattering layer comprises:
a plurality of non-scattering areas respectively located at a central portion of a corresponding one of the plurality of pixel areas, the plurality of non-scattering areas respectively overlapping the plurality of openings of the light-shielding layer; and
a plurality of scattering areas respectively located between neighboring non-scattering areas from among the plurality of non-scattering areas, and having a higher rate of light scattering than the plurality of non-scattering areas.
17. The display apparatus of claim 16 , wherein the scattering layer comprises scattering particles that are configured to scatter incident light, and that are either not located in the plurality of non-scattering areas, or are located in the plurality of non-scattering areas at a lower concentration than in the plurality of scattering areas.
18. The display apparatus of claim 12 , wherein the light-shielding layer comprises a light absorbing material.