Cover window for display device and display device including the same
A cover window for a display device includes a first film; a second film on the first film; an adhesive layer between the first film and the second film; a coating layer on the second film; and an inner anti-reflective layer between the first film and the coating layer.
1. A cover window for a display device, comprising:
a first film;
a second film on the first film;
an adhesive layer between the first film and the second film;
a coating layer on the second film;
an inner anti-reflective layer between the first film and the coating layer; and
an outer anti-reflective layer on the coating layer, wherein the outer anti-reflective layer is the outermost layer of the cover window.
2. The cover window for the display device of claim 1 , wherein the inner anti-reflective layer comprises at least one of:
a first inner anti-reflective layer between the first film and the adhesive layer;
a second inner anti-reflective layer between the adhesive layer and the second film; and
a third inner anti-reflective layer between the second film and the coating layer.
3. The cover window for the display device of claim 2 ,
wherein a refractive index of the first inner anti-reflective layer is between that of the first film and that of the adhesive layer,
wherein a refractive index of the second inner anti-reflective layer is between that of the adhesive layer and that of the second film, and
wherein a refractive index of the third inner anti-reflective layer is between that of the second film and that of the coating layer.
4. The cover window for the display device of claim 2 , wherein refractive indexes of the first inner anti-reflective layer, the second inner anti-reflective layer, and the third inner anti-reflective layer are each in a range of about 1.467 to about 1.667.
5. The cover window for the display device of claim 2 , wherein thicknesses of the first inner anti-reflective layer, the second inner anti-reflective layer, and the third inner anti-reflective layer are each in a range of about 0.1 μm to about 2 μm.
6. The cover window for the display device of claim 1 , wherein a refractive index of the outer anti-reflective layer is between that of the coating layer and that of air.
7. The cover window for the display device of claim 1 , wherein a refractive index of the outer anti-reflective layer is in a range of about 1.200 to about 1.467.
8. The cover window for the display device of claim 1 ,
wherein the inner anti-reflective layer comprises a binder, and
wherein the binder comprises at least one of silicon, epoxy, acryl, vinyl acetate, a silicon oxide, and an aluminum oxide.
9. The cover window for the display device of claim 1 , wherein the coating layer comprises urethane.
10. The cover window for the display device of claim 1 , wherein the first film and the second film each comprise at least one of polyimide (PI), polyamide-imide (PAI), polyetheretherketone (PEEK), and polyetherimide (PEI).
11. The cover window for the display device of claim 1 , wherein the adhesive layer comprises at least one of ethylene vinyl acetate (EVA), polydimethylsiloxane (PDMS), polyurethane (PU), urethane, acryl, and a silicon-based material.
12. A display device comprising:
a display panel; and
a cover window on the display panel,
wherein the cover window comprises:
a first film;
a second film on the first film;
an adhesive layer between the first film and the second film;
a coating layer on the second film;
an inner anti-reflective layer between the first film and the coating layer; and
an outer anti-reflective layer on the coating layer, wherein the outer anti-reflective layer is the outermost layer of the cover window.
13. The display device of claim 12 , wherein the inner anti-reflective layer comprises at least one of:
a first inner anti-reflective layer between the first film and the adhesive layer;
a second inner anti-reflective layer between the adhesive layer and the second film; and
a third inner anti-reflective layer between the second film and the coating layer.
14. The display device of claim 13 ,
wherein a refractive index of the first inner anti-reflective layer is between that of the first film and that of the adhesive layer,
wherein a refractive index of the second inner anti-reflective layer is between that of the adhesive layer and that of the second film, and
wherein a refractive index of the third inner anti-reflective layer is between that of the second film and that of the coating layer.
15. The display device of claim 13 , wherein refractive indexes of the first inner anti-reflective layer, the second inner anti-reflective layer, and the third inner anti-reflective layer are each in a range of about 1.467 to about 1.667.
16. The display device of claim 13 , wherein thicknesses of the first inner anti-reflective layer, the second inner anti-reflective layer, and the third inner anti-reflective layer are each in a range of about 0.1 μm to about 2 μm.
17. The display device of claim 12 , wherein a refractive index of the outer anti-reflective layer is between that of the coating layer and that of air.
18. The display device of claim 12 , wherein a refractive index of the outer anti-reflective layer is in a range of about 1.200 to about 1.467.
19. A cover window for a display device, comprising:
a first film;
a second film on the first film;
an adhesive layer between the first film and the second film;
a coating layer on the second film; and
an inner anti-reflective layer between the first film and the coating layer,
wherein the coating layer comprises a self-restorable urethane material.