Display device
A display device includes a first substrate, a first electrode above the first substrate, a pixel-defining film above the first electrode, and defining an emission area, a light-emitting layer above the first electrode and the pixel-defining film, a second electrode above the light-emitting layer, a thin-film encapsulation structure above the second electrode, and including an organic film defining an opening, and a color control layer above the thin-film encapsulation structure in the opening.
1 . A display device comprising:
a first substrate;
a first electrode above the first substrate;
a pixel-defining film above the first electrode, and defining an emission area;
a light-emitting layer above the first electrode and the pixel-defining film;
a second electrode above the light-emitting layer;
a thin-film encapsulation structure above the second electrode such that the second electrode is between the thin-film encapsulation structure and the first substrate in a thickness direction, and comprising an organic film defining an opening; and
a color control layer above the thin-film encapsulation structure in the opening.
2 . The display device of claim 1 , wherein the opening overlaps the emission area, and is smaller than the emission area.
3 . The display device of claim 1 , wherein the thin-film encapsulation structure further comprises a first inorganic film above the second electrode, and a second inorganic film above the organic film and covering the opening.
4 . The display device of claim 3 , wherein the opening exposes an upper surface of the first inorganic film that is in contact with the second inorganic film.
5 . The display device of claim 3 , wherein the opening corresponds to a well space having a depth from an upper surface of the organic film to an upper surface of the first inorganic film.
6 . The display device of claim 5 , wherein the color control layer is above the second inorganic film in the well space.
7 . The display device of claim 1 , wherein the organic film covers an upper surface and side surfaces of the pixel-defining film.
8 . The display device of claim 1 , further comprising a via layer above the first substrate and the first electrode, and defining a via groove overlapping the emission area.
9 . The display device of claim 8 , wherein an area of the via groove is greater than an area of the emission area and is greater than an area of the opening.
10 . The display device of claim 8 , wherein the first electrode is in the via groove, and wherein an area of the via groove is greater than or equal to an area of the first electrode.
11 . The display device of claim 8 , wherein the pixel-defining film defines a pixel hole that exposes the via groove and the first electrode, and is offset from the via groove.
12 . The display device of claim 11 , further comprising:
a low-refractive layer above the thin-film encapsulation structure;
a capping layer above the low-refractive layer;
a color filter layer above the capping layer; and
an overcoat layer above the color filter layer.
13 . The display device of claim 1 , wherein the color control layer comprises a wavelength conversion layer for converting a wavelength of light, or a transparent layer for transmitting light.
14 . The display device of claim 1 , further comprising:
a second substrate opposite the first substrate;
a color filter layer above a surface of the second substrate; and
a filling layer between the color filter layer and the thin-film encapsulation structure.
15 . A display device comprising:
a substrate;
a first electrode above the substrate;
a pixel-defining film above the first electrode, and defining an emission area;
a light-emitting layer above the first electrode and the pixel-defining film;
a second electrode above the light-emitting layer;
a thin-film encapsulation structure above the second electrode such that the second electrode is between the thin-film encapsulation structure and the substrate in a thickness direction, and comprising an organic film defining a groove; and
a color control layer above the thin-film encapsulation structure and in the groove.
16 . The display device of claim 15 , wherein the groove overlaps with the emission area, and corresponds to a well space having a depth from a top surface of the organic film to a bottom surface of the organic film, and
wherein the color control layer is in the well space.
17 . The display device of claim 16 , wherein a bottom surface of the groove comprises at least one protrusion comprising a micro lens shape.
18 . A display device comprising:
a substrate;
a pixel-defining film above the substrate, and defining emission areas;
light-emitting elements respectively in the emission areas, and comprising a first electrode, a light-emitting layer, and a second electrode;
a thin-film encapsulation structure above the light-emitting elements such that the light-emitting elements are between the thin-film encapsulation structure and the substrate in a thickness direction, and comprising an organic film having well structures respectively overlapping the emission areas; and
a color control layer above the thin-film encapsulation structure and in one or more of the well structures.
19 . The display device of claim 18 , wherein the well structures correspond to openings or grooves of the organic film.
20 . The display device of claim 18 , wherein the emission areas comprise a first emission area, a second emission area, and a third emission area,
wherein the color control layer comprises a first wavelength conversion layer, a second wavelength conversion layer, and a transparent layer, and
wherein the first wavelength conversion layer is in a first one of the well structures of the first emission area, the second wavelength conversion layer is in a second one of the well structures of the second emission area, and the transparent layer is in a third one of the well structures of the third emission area.