Display device
A display device according to an embodiment includes a substrate, a display element layer disposed on the substrate, and a window disposed on the display element layer. The window includes a display area and a peripheral area, wherein the window includes a base layer, a print layer disposed on a side of the base layer and including an opening, a first ink layer that overlaps the opening and includes an infrared ink, and a second ink layer that overlaps the opening and includes a white ink.
1. A display device comprising:
a display element layer disposed on a substrate; and
a window disposed on the display element layer, the window including a display area and a peripheral area, wherein
the window comprises:
a base layer;
a first print layer disposed on a side of the base layer, the first print layer including an opening;
a first ink layer that overlaps the opening, the first ink layer including an infrared ink; and
a second ink layer that overlaps the opening, the second ink layer including a white ink comprising at least one carbon-based compound; and
an alignment mark including the white ink, and
the alignment mark overlaps the peripheral area.
2. The display device of claim 1 , wherein the white ink comprises at least one of compounds represented by Chemical Formula 1 to Chemical Formula 4:
wherein in Chemical Formula 2 and Chemical Formula 3,
n is a natural number greater than 1.
3. The display device of claim 2 , wherein
the compound represented by Chemical Formula 1 is included in an amount equal to or greater than about 48 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 2 is included in an amount equal to or greater than about 44 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 4 is included in an amount equal to or greater than about 1 wt % with respect to the total content of the white ink, and
the sum of the compounds represented by Chemical Formula 1, Chemical Formula 2, and Chemical Formula 4 is 100 wt %.
4. The display device of claim 2 , wherein
the compound represented by Chemical Formula 1 is included in an amount equal to or greater than about 48 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 3 is included in an amount equal to or greater than about 44 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 4 is included in an amount equal to or greater than about 1 wt % with respect to the total content of the white ink, and
the sum of the compounds represented by Chemical Formula 1, Chemical Formula 3, and Chemical Formula 4 is 100 wt %.
5. The display device of claim 1 , wherein the alignment mark and the second ink layer are disposed on a same layer.
6. The display device of claim 1 , wherein the window further comprises a second print layer disposed between the first print layer and the second ink layer.
7. The display device of claim 6 , wherein the second print layer is disposed between the first ink layer and the second ink layer.
8. The display device of claim 6 , wherein the second print layer is disposed between the first print layer and the first ink layer.
9. The display device of claim 1 , further comprising an infrared ray sensor that overlaps the opening.
10. The display device of claim 1 , wherein the opening overlaps the peripheral area.
11. The display device of claim 1 , wherein the opening overlaps the display area.
12. The display device of claim 1 , wherein the opening has a transmittance equal to or greater than about 40% in a wavelength of 940 nanometers.
13. A display device comprising:
a display element layer disposed on a substrate;
a window disposed on the display element layer, the window including an infrared ray detection area; and
an infrared ray sensor that overlaps the infrared ray detection area, wherein
the window comprises:
a base layer;
a print layer disposed on a side of the base layer;
a first ink layer that overlaps at least a part of the print layer, the first ink layer including an infrared ray ink, the first ink layer being disposed in the infrared ray detection area; and
a second ink layer including a white ink comprising at least one carbon-based compound, the second ink layer overlapping the first ink layer; and
an alignment mark including the white ink,
the print layer comprises an opening that overlaps the first ink layer and the second ink layer,
the display device comprises a display area and a peripheral area, and
the alignment mark overlaps the peripheral area.
14. The display device of claim 13 , wherein the white ink comprises at least one of compounds represented by Chemical Formula 1 to Chemical Formula 4:
wherein in Chemical Formula 2 and Chemical Formula 3,
n is a natural number greater than 1.
15. The display device of claim 14 , wherein
the compound represented by Chemical Formula 1 is included in an amount equal to or greater than about 48 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 2 is included in an amount equal to or greater than about 44 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 4 is included in an amount equal to or greater than about 1 wt % with respect to the total content of the white ink, and
the sum of the compounds represented by Chemical Formula 1, Chemical Formula 2, and Chemical Formula 4 is 100 wt %.
16. The display device of claim 14 , wherein
the compound represented by Chemical Formula 1 is included in an amount equal to or greater than about 48 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 3 is included in an amount equal to or greater than about 44 wt % with respect to the total content of the white ink,
the compound represented by Chemical Formula 4 is included in an amount equal to or greater than about 1 wt % with respect to the total content of the white ink, and
the sum of the compounds represented by Chemical Formula 1, Chemical Formula 3, and Chemical Formula 4 is 100 wt %.
17. The display device of claim 13 , wherein the print layer comprises a first print layer and a second print layer.