Display device including color filter on light-emitting elements
A display device comprises pixel electrodes disposed on a substrate and spaced apart from one another, a pixel-defining film disposed on the substrate and including openings, which are spaced apart from one another and overlap the pixel electrodes, organic light-emitting layers disposed in the openings of the pixel-defining film, a common electrode disposed between the pixel-defining film and the organic light-emitting layers, an encapsulation layer disposed on the common electrode, a light-blocking layer disposed on the encapsulation layer and including holes, which overlap the openings and are spaced apart from one another, and color filters disposed in the holes of the light-blocking layer and overlapping the openings. Sides of each of the openings have concave-convex patterns including convex portions that protrude outwardly and concave portions that are inwardly depressed. The color filters are disposed to partially overlap one another on the light-blocking layer.
1 . A display device comprising:
pixel electrodes disposed on a substrate and spaced apart from one another;
a pixel-defining film disposed on the substrate and including openings, which are spaced apart from one another and overlap the pixel electrodes;
organic light-emitting layers disposed in the openings of the pixel-defining film;
a common electrode disposed between the pixel-defining film and the organic light-emitting layers;
an encapsulation layer disposed on the common electrode;
a light-blocking layer disposed on the encapsulation layer and including holes, which overlap the openings and are spaced apart from one another; and
color filters disposed in the holes of the light-blocking layer and overlapping the openings, wherein
sides of each of the openings have concave-convex patterns including convex portions that protrude outwardly and concave portions that are inwardly depressed,
the color filters are disposed to partially overlap one another on the light-blocking layer, and
a pattern depth of the openings, which is a sum of a length of the concave portions and a length of the concave portions, is about 1/40 to about ½ of an opening width of the openings.
2 . The display device of claim 1 , wherein
a pattern width of the openings, which is a pattern width of the concave portions or the convex portions, is about 1/20 to about 1/1 of the opening width of the openings.
3 . The display device of claim 2 , wherein the pattern depth and the pattern width are about 3 μm to about 5 μm.
4 . The display device of claim 2 , wherein
the openings have a same opening width in both a first direction and a second direction, which intersect each other, and
sides, in the first direction, of each of the openings have a same opening width-to-pattern width ratio as sides, in the second direction, of each of the openings.
5 . The display device of claim 2 , wherein
the openings have different opening widths in a first direction and a second direction, which intersect each other, and
sides, in the first direction, of each of the openings have a different opening width-to-pattern width ratio from sides, in the second direction, of each of the openings.
6 . The display device of claim 2 , wherein each of the sides of each of the openings includes one concave portion.
7 . The display device of claim 6 , wherein the pattern depth of the openings is about ½ of the opening width of the openings.
8 . The display device of claim 2 , wherein
the openings include first and second openings, which are spaced apart from each other,
an opening width of the first opening differs from an opening width of the second opening, and
a pattern width-to-opening width ratio of the first opening differs from a pattern width-to-opening width ratio of the second opening.
9 . The display device of claim 1 , wherein each side of each of the holes of the light-blocking layer includes convex portions that protrude outwardly and/or concave portions that are inwardly depressed to correspond to each of the sides of each of the openings.
10 . The display device of claim 1 , wherein each side of each of the color filters includes convex portions that protrude outwardly and/or concave portions that are inwardly depressed to correspond to each of the sides of each of the holes.
11 . The display device of claim 1 , wherein each side of each of the openings includes convex portions that protrude outwardly from an imaginary line extending across both ends of a corresponding side.
12 . The display device of claim 1 , wherein each side of each of the openings includes concave portions that are inwardly depressed from an imaginary line extending across both ends of a corresponding side.
13 . The display device of claim 1 , wherein
each side, in a first direction, of each of the openings includes the convex portions, and
each side, in a second direction, which intersects the first direction, includes the concave portions.
14 . The display device of claim 1 , wherein
at least parts of the sides of each of the openings are linear, and
each of the openings has protruding rounded corners where the sides of a corresponding opening meet.
15 . The display device of claim 14 , wherein
the openings include a first opening and a second opening, which are spaced apart from each other, and
directions faced by protruding rounded corners of the first opening differ from directions faced by protruding rounded corners of the second opening.
16 . A display device comprising:
pixels arranged in a first direction and a second direction, which intersect each other, each of the pixels including openings in which light-emitting elements are arranged;
a light-blocking layer including holes, which are disposed in each of the pixels and overlap the openings; and
color filters disposed in the holes of the light-blocking layer and overlapping the openings, wherein
the openings include a first opening and a second opening, which are spaced apart from each other,
the color filters include a first color filter and a second color filter, which overlap the first and second openings, respectively,
each side of each of the first and second openings includes convex portions that protrude outwardly and/or concave portions that are inwardly depressed,
the first and second color filters are disposed to overlap each other on the light-blocking layer, and
a pattern depth of the openings, which is a sum of a length of the concave portions and a length of the convex portions, is about 1/40 to about ½ of an opening width of the openings.
17 . The display device of claim 16 , wherein
a pattern width of the openings, which is a pattern width of the concave portions or the convex portions, is about 1/20 to about 1/1 of the opening width of the openings.
18 . The display device of claim 17 , wherein the pattern depth and the pattern width are about 3 μm to about 5 μm.
19 . The display device of claim 17 , wherein
the pixels include a first pixel and a second pixel, which are adjacent to each other in the first direction, and
positions of concave portions and convex portions of the first opening of the first pixel are opposite to positions of concave portions and convex portions of the second opening of the second pixel.
20 . The display device of claim 16 , wherein
at least parts of the sides of each of the openings are linear, and
each of the openings has protruding rounded corners where the sides of a corresponding opening meet.
21 . The display device of claim 20 , wherein
protruding rounded corners of the first opening face the first and second directions, and
protruding rounded corners of the second opening face diagonal directions between the first and second directions.
22 . The display device of claim 20 , wherein
the pixels include a first pixel and a second pixel, which are adjacent to each other in the first direction, and
directions faced by protruding rounded corners of the first opening of the first pixel differ from directions faced by protruding rounded corners of the first opening of the second pixel.
23 . A display device comprising:
pixel electrodes disposed on a substrate and spaced apart from one another;
a pixel-defining film disposed on the substrate and including openings, which are spaced apart from one another and overlap the pixel electrodes;
organic light-emitting layers disposed in the openings of the pixel-defining film;
a common electrode disposed between the pixel-defining film and the organic light-emitting layers;
an encapsulation layer disposed on the common electrode;
a light-blocking layer disposed on the encapsulation layer and including holes, which overlap the openings and are spaced apart from one another;
color filters disposed in the holes of the light-blocking layer and overlapping the openings; and
spacers disposed between the pixel-defining film and the common electrode, wherein
sides of each of the openings have concave-convex patterns including convex portions that protrude outwardly and concave portions that are inwardly depressed,
the color filters are disposed to partially overlap one another on the light-blocking layer, and
each side of each of the spacers includes convex portions that protrude outwardly and concave portions that are inwardly depressed to correspond to each of the sides of each of the openings.