Display device having ultraviolet light blocking properties
A display device includes a substrate, a thin film transistor disposed on the substrate, and a display element electrically connected to the thin film transistor. The substrate includes a first substrate layer, a second substrate layer disposed on the first substrate layer, a first barrier layer disposed between the first substrate layer and the second substrate layer, and a first ultraviolet light blocking layer disposed between the first substrate layer and the second substrate layer.
1. A display device, comprising:
a substrate;
a thin film transistor disposed on the substrate; and
a display element electrically connected to the thin film transistor,
wherein the substrate comprises:
a first substrate layer;
a second substrate layer disposed on the first substrate layer;
a first barrier layer disposed between the first substrate layer and the second substrate layer;
a first ultraviolet light blocking layer disposed between the first substrate layer and the first barrier layer; and
a second ultraviolet light blocking layer disposed between the first barrier layer and the second substrate layer.
2. The display device of claim 1 , wherein the substrate further comprises a second barrier layer disposed between the second substrate layer and the thin film transistor.
3. The display device of claim 1 , wherein the first ultraviolet light blocking layer includes a benzophenone compound, a benzotriazole compound, a benzoate compound, a cyanoacrylate compound, a triazine compound, an oxanilide compound, and/or a salicylate compound.
4. The display device of claim 1 , wherein the first ultraviolet light blocking layer includes calcium oxide (CaO) and/or lithium fluorine (LiF).
5. The display device of claim 1 , wherein the display element comprises a first electrode, an organic light emitting layer disposed on the first electrode, and a second electrode disposed on the organic light emitting layer.
6. A display device, comprising:
a substrate comprising a plurality of ultraviolet light blocking particles disposed therein;
a thin film transistor disposed on the substrate; and
a display element electrically connected to the thin film transistor,
wherein the plurality of ultraviolet light blocking particles is dispersed within a matrix layer and the matrix layer directly contacts, on a first side, a first barrier layer and directly contacts, on a second side, opposite to the first side, a second barrier layer or a protective film, and
wherein the matrix layer includes an organic material and the first and second barrier layers each include an inorganic material.
7. The display device of claim 6 , wherein the substrate further comprises a first substrate layer, a second substrate layer disposed on the first substrate layer, and the first barrier layer disposed between the first substrate layer and the second substrate layer.
8. The display device of claim 6 , wherein each of the plurality of ultraviolet light blocking particles comprises a compound that includes a hydroxyl group.
9. The display device of claim 6 , wherein each of the plurality of ultraviolet light blocking particles includes a benzophenone compound, a benzotriazole compound, a benzoate compound, a cyanoacrylate compound, a triazine compound, air oxanilide compound, and/or a salicylate compound.
10. The display device of claim 6 , wherein the plurality of ultraviolet light blocking particles are cross-linked with the matrix layer.
11. The display device of claim 6 , further comprising a sensor disposed under the substrate.
12. The display device of claim 11 , wherein the plurality of ultraviolet light blocking particles overlap the sensor.