Display device
A display device includes: a substrate on which a light emitting area and a non-light emitting area adjacent to the light emitting area are defined, a plurality of light control patterns disposed on the substrate and spaced apart from each other, a common electrode disposed on the plurality of light control patterns, a light blocking layer disposed on the common electrode and overlapping the non-light emitting area, a solvent layer disposed between the common electrode and the light blocking layer, a plurality of electrophoretic particles dispersed in the solvent layer and movable in a horizontal direction of the substrate, and a first control electrode disposed between the common electrode and the light blocking layer, and overlapping the non-light emitting area.
1 . A display device comprising:
a substrate on which a light emitting area and a non-light emitting area adjacent to the light emitting area are defined;
a plurality of light control patterns disposed on the substrate and spaced apart from each other;
a common electrode disposed on the plurality of light control patterns;
a light blocking layer disposed on the common electrode and overlapping the non-light emitting area;
a solvent layer disposed between the common electrode and the light blocking layer;
a plurality of electrophoretic particles dispersed in the solvent layer and movable in a horizontal direction of the substrate; and
a first control electrode disposed between the common electrode and the light blocking layer, and overlapping the non-light emitting area.
2 . The display device of claim 1 , wherein when a first voltage is applied to the common electrode and a second voltage having a magnitude different from a magnitude of the first voltage is applied to the first control electrode, the plurality of electrophoretic particles moves into a space between the common electrode and the first control electrode.
3 . The display device of claim 1 , wherein the first control electrode directly contacts one surface of the light blocking layer facing the substrate.
4 . The display device of claim 1 , further comprising:
a light transmission layer disposed between the plurality of light control patterns on the substrate and including a transparent organic material.
5 . The display device of claim 4 , wherein the light transmission layer includes a protruding part protruding toward the common electrode from an upper surface of the transmission layer and overlapping the light emitting area.
6 . The display device of claim 1 , further comprising:
a second control electrode disposed on the common electrode and overlapping the light emitting area.
7 . The display device of claim 6 , wherein when a first voltage is applied to the common electrode, a second voltage having a magnitude different from a magnitude of the first voltage is applied to the first control electrode, and the first voltage is applied to the second control electrode, the plurality of electrophoretic particles moves into a space between the common electrode and the first control electrode.
8 . The display device of claim 6 , wherein
an opening overlapping the light emitting area is defined in the light blocking layer, and
the second control electrode is disposed in the opening.
9 . The display device of claim 6 , wherein
the first control electrode includes a plurality of first electrode patterns spaced apart from each other in a first direction, and
each of the plurality of first electrode patterns extends in a second direction crossing the first direction.
10 . The display device of claim 9 , wherein
the second control electrode includes a plurality of second electrode patterns spaced apart from each other in the first direction, and
each of the plurality of first electrode patterns extends in the second direction.
11 . The display device of claim 10 , wherein the second control electrode partially overlaps the non-light emitting area.
12 . The display device of claim 6 , wherein a driving voltage or a common voltage is applied to the second control electrode.
13 . The display device of claim 6 , further comprising:
an anode electrode disposed in the light emitting area on the substrate;
a light emitting layer disposed on the anode electrode; and
a cathode electrode disposed on the light emitting layer.
14 . The display device of claim 13 , wherein the second control electrode is electrically connected to the cathode electrode.
15 . The display device of claim 6 , further comprising:
a light transmission layer disposed between the plurality of light control patterns on the substrate and including a transparent organic material,
wherein the light transmission layer includes a protruding part protruding toward the common electrode from an upper surface of the transmission layer and overlapping the light emitting area.
16 . The display device of claim 1 , wherein each of the plurality of electrophoretic particles is a transparent light scattering particle.
17 . The display device of claim 1 , wherein each of the plurality of light control patterns includes molybdenum tantalum oxide.
18 . The display device of claim 1 , wherein each of the plurality of light control patterns includes an organic material including at least one selected from black pigment and a black dye.
19 . The display device of claim 1 , wherein each of the plurality of light control patterns has a multi-layer structure.
20 . The display device of claim 19 , wherein each of the plurality of light control patterns has a two-layer structure including a first sub-partition wall and a second sub-partition wall disposed on the first sub-partition wall.
21 . The display device of claim 19 , wherein each of the plurality of light control patterns has a three-layer structure including a first sub-partition wall, a second sub-partition wall disposed on the first sub-partition wall, and a third sub-partition wall disposed on the second sub-partition wall.
22 . The display device of claim 1 , wherein
the plurality of light control patterns are spaced apart from each other in a first direction, and
each of the plurality of light control patterns extends in a second direction crossing the first direction.
23 . The display device of claim 1 , further comprising:
a touch sensing layer disposed between the substrate and the common electrode, wherein the touch sensing layer senses a touch of a user.
24 . A display device comprising:
a substrate on which first, second, and third light emitting areas, which emit light of different colors, and a non-light emitting area adjacent to the first, second, and third light emitting areas are defined;
a plurality of light control patterns disposed on the substrate, overlapping the first, second, and third light emitting areas and the non-light emitting area, and spaced apart from each other;
a common electrode disposed on the plurality of light control patterns and overlapping the first, second, and third light emitting areas;
a light blocking layer disposed on the common electrode and overlapping the non-light emitting area;
a solvent layer disposed between the common electrode and the light blocking layer;
a plurality of electrophoretic particles dispersed in the solvent layer and movable in a horizontal direction of the substrate; and
a first control electrode disposed between the common electrode and the light blocking layer, and overlapping the non-light emitting area.
25 . The display device of claim 24 , wherein when a first voltage is applied to the common electrode and a second voltage having a magnitude different from a magnitude of the first voltage is applied to the first control electrode, the plurality of electrophoretic particles move into a space between the common electrode and the first control electrode.
26 . The display device of claim 24 , wherein the first control electrode directly contacts one surface of the light blocking layer facing the substrate.
27 . The display device of claim 24 , further comprising:
a light transmission layer disposed between the plurality of light control patterns on the substrate and including a transparent organic material,
wherein the light transmission layer includes a protruding part protruding toward the common electrode from an upper surface of the transmission layer and overlapping the first, second, and third light emitting areas.
28 . The display device of claim 24 , further comprising:
a second control electrode disposed on the common electrode and overlapping the light emitting area,
wherein when a first voltage is applied to the common electrode, a second voltage having a magnitude different from a magnitude of the first voltage is applied to the first control electrode, and the first voltage is applied to the second control electrode, the plurality of electrophoretic particles move into a space between the common electrode and the first control electrode.
29 . The display device of claim 24 , wherein each of the plurality of electrophoretic particles is a transparent light scattering particle.
30 . The display device of claim 24 , wherein each of the plurality of light control patterns includes an inorganic material or an organic material.