Display apparatus having a light-emitting device
A display apparatus includes a substrate with a plurality of pixel areas. The display apparatus includes a light-emitting device formed in a pixel area for emitting light. An encapsulation unit is formed on the light-emitting device. The display apparatus includes a black matrix on the encapsulation unit, where an opening in the black matrix overlaps with the light-emitting device in a first direction. An upper surface of the control insulating layer is formed with a groove that is a recessed portion toward the substrate. An optical lens is disposed above the groove in the control insulating layer.
1 . A display apparatus, comprising:
a substrate with a pixel area;
a light-emitting device formed in the pixel area for emitting light;
an encapsulation unit on the light-emitting device;
a first black matrix on the encapsulation unit, the first black matrix formed with a first opening, the first opening in the first black matrix overlapping with the light-emitting device in a first direction;
an insulating layer on the first black matrix, an upper surface of the insulating layer formed with a groove that is a recessed portion toward the substrate, the groove overlapping with the first opening in the first black matrix in the first direction;
a second black matrix on the insulating layer, the second black matrix formed with a second opening, the second opening of the second black matrix overlapping with the light-emitting device and the first opening in the first direction, the groove formed within the second opening; and
an optical lens disposed above the groove in the insulating layer.
2 . The display apparatus of claim 1 , wherein a refractive index of the optical lens is greater than a refractive index of the insulating layer.
3 . The display apparatus of claim 1 , wherein at least a part of the optical lens has a convex shape or a semicircular shape.
4 . The display apparatus of claim 1 , wherein the recessed portion is filled with at least a portion of the optical lens.
5 . The display apparatus of claim 1 , wherein the recessed portion is formed with at least a first surface inclined in a second direction and a second surface inclined in a third direction different from the second direction.
6 . The display apparatus of claim 1 , wherein a shape of the recessed portion of the groove is at least one of a conical shape, a pyramid shape, or a prism shape.
7 . The display apparatus of claim 1 , wherein the light-emitting device includes a first electrode, a light-emitting layer, and a second electrode, and wherein a size of an emission area of the light-emitting device where the first electrode, the light-emitting layer, and the second electrode overlap is larger than an area of the opening of the black matrix.
8 . The display apparatus of claim 1 , wherein a size of the recessed portion is smaller than an area of the opening in the black matrix, and wherein an end of the optical lens contacts a side surface of the black matrix in the opening.
9 . The display apparatus of claim 1 , wherein a surface of the recessed portion of the groove is curved.
10 . The display apparatus of claim 1 , wherein a bottom surface of the recessed portion is substantially flat, and a side surface of the recessed portion is perpendicular to the bottom surface of the recessed portion.
11 . The display apparatus of claim 1 , wherein the recessed portion is formed with at least a first surface inclined in a second direction and a second surface inclined in a third direction different from the second direction, and a third surface perpendicular to the upper surface of the insulating layer.
12 . The display apparatus of claim 1 , wherein the recessed portion is filled with an optical insulating layer, and the optical lens is disposed on the optical insulating layer, and wherein a refractive index of the optical insulating layer is between a refractive index of the optical lens and a refractive index of the insulating layer.
13 . The display apparatus of claim 1 , further comprising a lens passivation layer covering the optical lens, wherein a refractive index of the lens passivation layer is equal to or greater than a refractive index of the optical lens.
14 . The display apparatus of claim 1 , wherein a first width of the recessed portion of the groove from a first distance from the substrate is wider than a second width of the recessed portion of the groove from a second distance smaller than a first distance from the substrate.
15 . The display apparatus of claim 1 , wherein the optical lens is disposed on at least a portion of the black matrix.