Display apparatus and method of manufacturing the same
Provided is a display apparatus including a first semiconductor layer having a first surface and a second surface opposite to each other, a plurality of partitions protruding from the first surface, and a plurality of opening areas between the plurality of partitions, a plurality of active layers provided opposite to the plurality of opening areas on the second surface of the first semiconductor layer, a plurality of second semiconductor layers respectively provided on the plurality of active layers opposite to the first semiconductor layer, a separation film provided between two adjacent active layers among the plurality of active layers and between two adjacent second semiconductor layers among the plurality of second semiconductor layers, and a plurality of color conversion layers provided in the plurality of opening areas on the first surface of the first semiconductor layer.
1 . A display apparatus comprising:
a first semiconductor layer having a first surface and a second surface opposite to the first surface, a plurality of partitions protruding from the first surface to a level of an upper surface of each partition of the plurality of partitions, and a plurality of opening areas between the plurality of partitions;
a plurality of active layers provided opposite to the plurality of opening areas on the second surface of the first semiconductor layer;
a plurality of second semiconductor layers respectively provided on the plurality of active layers opposite to the first semiconductor layer;
a plurality of separation films, each separation film of the plurality of separation films being provided between two adjacent active layers among the plurality of active layers and between two adjacent second semiconductor layers among the plurality of second semiconductor layers;
a plurality of color conversion layers provided in the plurality of opening areas on the first surface of the first semiconductor layer;
a plurality of common electrodes comprising a conductive metal material, each common electrode of the plurality of common electrodes being provided only on the upper surface of each corresponding partition of the plurality of partitions;
a light blocking film provided on sidewalls of the plurality of partitions; and
a driving circuit configured to independently drive the plurality of active layers,
wherein a material composition of the plurality of partitions is the same as a material composition of the first semiconductor layer,
wherein the plurality of partitions integrally extend from the first surface of the first semiconductor layer opposite to the plurality of active layers and the plurality of separation films, and
wherein the first semiconductor layer is a single layer continuously extending on upper surfaces of the plurality of active layers and upper surfaces of the plurality of separation films.
2 . The display apparatus of claim 1 , wherein the common electrode comprises an opaque metal material.
3 . The display apparatus of claim 1 , further comprising a support substrate and a driving circuit layer provided between the support substrate and the plurality of second semiconductor layers and between the support substrate and the separation film,
wherein the driving circuit layer comprises the driving circuit.
4 . The display apparatus of claim 1 , wherein the first surface of the first semiconductor layer in the plurality of opening areas has a light extraction pattern.
5 . The display apparatus of claim 1 , further comprising a plurality of reflective electrodes electrically connected to the plurality of second semiconductor layers, respectively.
6 . The display apparatus of claim 1 , wherein the first semiconductor layer is doped with a first conductivity type, and the plurality of second semiconductor layers are doped with a second conductivity type electrically opposite to the first conductivity type.
7 . The display apparatus of claim 1 , wherein an interval between two adjacent partitions, among the plurality of partitions, is greater than a width of each of the plurality of active layers.
8 . The display apparatus of claim 7 , wherein the width of each of the plurality of active layers is in a range of 0.1 μm to 100 μm.
9 . The display apparatus of claim 1 , wherein a height of each of the plurality of color conversion layers is less than a height of each of the plurality of partitions.
10 . The display apparatus of claim 1 , wherein each of the plurality of color conversion layers comprises a photoresist and quantum dots or phosphors dispersed in the photoresist.
11 . The display apparatus of claim 1 , further comprising an insulating layer provided on the plurality of partitions and the plurality of color conversion layers, the insulating layer having transparency to light emitted from the plurality of color conversion layers.
12 . The display apparatus of claim 1 , further comprising a plurality of absorption type color filters respectively provided on the plurality of color conversion layers.
13 . The display apparatus of claim 12 , wherein each of the plurality of absorption type color filters is provided in direct contact with an upper surface of a corresponding one of the plurality of color conversion layers.
14 . A display apparatus comprising:
a first semiconductor layer having a first surface and a second surface opposite to each other, a plurality of partitions protruding from the first surface to a level of an upper surface of each partition of the plurality of partitions, and a plurality of opening areas between the plurality of partitions;
a plurality of active layers provided opposite to the plurality of opening areas on the second surface of the first semiconductor layer;
a plurality of second semiconductor layers respectively provided on the plurality of active layers opposite to the first semiconductor layer;
a plurality of separation films, each separation film of the plurality of separation films being provided between two adjacent active layers among the plurality of active layers and between two adjacent second semiconductor layers among the plurality of second semiconductor layers;
a plurality of color conversion layers provided in the plurality of opening areas on the first surface of the first semiconductor layer;
a plurality of common electrodes comprising a conductive metal material, each common electrode of the plurality of common electrodes being provided only on the upper surface of each corresponding partition of the plurality of partitions;
a light blocking film provided on sidewalls of the plurality of partitions; and
a driving circuit configured to independently drive the plurality of active layers,
wherein the plurality of partitions integrally extend from the first surface of the first semiconductor layer opposite to the plurality of active layers and the plurality of separation films,
wherein the first semiconductor layer is a single layer continuously extending on upper surfaces of the plurality of active layers and upper surfaces of the plurality of separation films.