Display device
A display device includes a display unit including a lower substrate and first, second, and third light emitting elements disposed on the lower substrate, a color filter unit including an upper substrate having a lower surface facing the first, second, and third light emitting elements, a filler disposed between the display unit and the color filter unit and including a wavelength conversion particle. The color filter unit further includes a color filter layer including first, second, and third color filters disposed on the lower surface of the upper substrate, a bank layer disposed below the color filter layer and including first, second, and third openings, a first column spacer filling the first opening, and a second column spacer filling the second opening.
1 . A display device comprising:
a display unit including a lower substrate and a first light emitting element, a second light emitting element, and a third light emitting element disposed on the lower substrate;
a color filter unit including an upper substrate having a lower surface facing the first, second, and third light emitting elements; and
a filler disposed between the display unit and the color filter unit and including a wavelength conversion particle,
wherein the color filter unit further includes:
a color filter layer including a first color filter, a second color filter, and a third color filter disposed on the lower surface of the upper substrate;
a bank layer disposed below the color filter layer and including a first opening,
a second opening, and a third opening;
a first column spacer filling the first opening; and
a second column spacer filling the second opening.
2 . The display device of claim 1 , wherein the wavelength conversion particle includes quantum dots emitting first color light.
3 . The display device of claim 2 , wherein the first color light is red light.
4 . The display device of claim 1 , wherein the filler fills the third opening.
5 . The display device of claim 1 , wherein a lower surface of the first column spacer and a lower surface of the second column spacer are formed lower than a lower surface of the bank layer.
6 . The display device of claim 5 , wherein the first column spacer and the second column spacer are connected to each other.
7 . The display device of claim 1 , wherein the first color filter and the second color filter include a scattering element.
8 . The display device of claim 1 , further comprising:
a low refractive layer disposed between the color filter layer and the bank layer, the first column spacer, the second column spacer, and the filler.
9 . The display device of claim 8 , further comprising:
a first capping layer disposed between the low refractive layer and the bank layer, the first column spacer, the second column spacer, and the filler.
10 . The display device of claim 9 , further comprising:
a second capping layer covering a lower surface of the bank layer and sidewalls of the first opening, the second opening, and the third opening.
11 . The display device of claim 1 , wherein each of the first column spacer and the second column spacer includes a liquid repellent component.
12 . A display device comprising:
a display unit including a lower substrate and a first light emitting element, a second light emitting element, and a third light emitting element disposed on the lower substrate;
a color filter unit including an upper substrate having a lower surface facing the first, second, and third light emitting elements; and
a filler disposed between the display unit and the color filter unit and including a wavelength conversion particle, wherein
the display unit further includes:
a bank layer disposed on the first, second, and third light emitting elements and including a first opening, a second opening, and a third opening;
a first column spacer filling the first opening; and
a second column spacer filling the second opening, and
the color filter unit further includes a color filter layer including a first color filter, a second color filter, and a third color filter disposed on the lower surface of the upper substrate.
13 . The display device of claim 12 , wherein the wavelength conversion particle includes quantum dots emitting first color light.
14 . The display device of claim 13 , wherein the first color light is red light.
15 . The display device of claim 12 , wherein the filler fills the third opening.
16 . The display device of claim 12 , wherein an upper surface of the first column spacer and an upper surface of the second column spacer are formed higher than an upper surface of the bank layer.
17 . The display device of claim 16 , wherein the first column spacer and the second column spacer are connected to each other.
18 . The display device of claim 12 , further comprising:
an encapsulation layer disposed between the bank layer and the first to third light emitting elements, the first column spacer, the second column spacer, and the filler.
19 . The display device of claim 18 , further comprising:
a first capping layer disposed between the encapsulation layer and the bank layer, the first column spacer, the second column spacer, and the filler.
20 . The display device of claim 19 , further comprising:
a second capping layer covering an upper surface of the bank layer and sidewalls of the first opening, the second opening, and the third opening.