Cover window and display device including the same
A cover window includes a base layer including a light-emitting area and an outer area surrounding at least a portion of the light-emitting area and a functional layer disposed on at least one surface of the base layer and having a refractive index increasing from the light-emitting area to outer area.
1 . A cover window comprising:
a base layer including a light-emitting area and an outer area surrounding at least a portion of the light-emitting area; and
a functional layer disposed on at least one surface of the base layer and having a refractive index increasing from the light-emitting area to the outer area,
wherein the light-emitting area includes a first area and a second area surrounding at least a portion of the first area,
the functional layer overlapping the first area includes a first ion,
the functional layer overlapping the second area includes a second ion,
the functional layer overlapping the outer area includes a third ion,
a third ionic radius of the third ion is greater than a first ionic radius of the first ion and a second ionic radius of the second ion.
2 . The cover window of claim 1 , wherein
a third refractive index of the functional layer overlapping the outer area is greater than a first refractive index of the functional layer overlapping the first area, and
the third refractive index is greater than a second refractive index of the functional layer overlapping the second area.
3 . The cover window of claim 2 , wherein the second refractive index is greater than the first refractive index.
4 . The cover window of claim 1 , wherein the second ionic radius is greater than the first ionic radius.
5 . The cover window of claim 1 , wherein a third content of the third ion is greater than a first content of the first ion, and
the third content is greater than a second content of the second ion.
6 . The cover window of claim 5 , wherein the second content is greater than the first content.
7 . A cover window comprising:
a base layer including a light-emitting area and an outer area surrounding at least a portion of the light-emitting area; and
a functional layer disposed on at least one surface of the base layer and having a refractive index increasing from the light-emitting area to the outer area, wherein the light-emitting area includes a first area and a second area surrounding at least a portion of the first area,
a third refractive index of the functional layer overlapping the outer area is greater than a first refractive index of the functional layer overlapping the first area,
the third refractive index is greater than a second refractive index of the functional layer overlapping the second area,
the functional layer overlapping the first area includes an ion by a first content,
the functional layer overlapping the second area includes the ion by a second content,
the functional layer overlapping a third area includes the ion by a third content,
the third content is greater than the first content, and
the third content is greater than the second content.
8 . The cover window of claim 7 , wherein the second content is greater than the first content.
9 . The cover window of claim 1 , wherein the functional layer includes:
a first functional layer disposed on a first surface of the base layer; and
a second functional layer disposed on a second surface opposite to the first surface of the base layer.
10 . A display device comprising:
a display panel;
a base layer disposed on the display panel and including a light-emitting area and an outer area surrounding at least a portion of the light-emitting area; and
a functional layer disposed on at least one surface of the base layer and having a refractive index increasing from the light-emitting area to the outer area,
wherein the light-emitting area includes a first area and a second area surrounding at least a portion of the first area,
the functional layer overlapping the first area includes a first ion,
the functional layer overlapping the second area includes a second ion,
the functional layer overlapping the outer area includes a third ion,
a third ionic radius of the third ion is greater than a first ionic radius of the first ion, and
the third ionic radius is greater than a second ionic radius of the second ion.
11 . The display device of claim 10 , wherein
the display panel includes a display area corresponding to the first area and a non-display area corresponding to the outer area.
12 . The display device of claim 11 , wherein a light emitted from the display area is refracted in the functional layer and emitted to the second area.
13 . The display device of claim 11 , wherein a third refractive index of the functional layer overlapping the outer area is greater than a first refractive index of the functional layer overlapping the first area, and
the third refractive index is greater than a second refractive index of the functional layer overlapping the second area.
14 . The display device of claim 13 , wherein the second refractive index is greater than the first refractive index.
15 . The display device of claim 10 , wherein a third content of the third ion is greater than a first content of the first ion, and
the third content is greater than a second content of the second ion.
16 . The display device of claim 13 , wherein the functional layer overlapping the first area includes an ion by a first content,
the functional layer overlapping the second area includes the ion by a second content,
the functional layer overlapping a third area includes the ion by a third content,
the third content is greater than the first content, and
the third content is greater than the second content.
17 . The display device of claim 10 , further comprising:
a print pattern disposed under the base layer,
wherein a width of the outer area is smaller than a width of the print pattern.