Display device with low reflective components

1 . A display device, comprising:

a luminous area;

a non-luminous area;

a display element layer;

an optical control layer disposed on the display element layer; and

a low reflective window disposed on the optical control layer,

wherein the display element layer comprises:

a pixel definition film in which a pixel opening is defined;

a first electrode exposed through the pixel opening;

an emission layer disposed on the first electrode;

a second electrode disposed on the emission layer; and

a low reflective layer disposed on the second electrode and comprising bismuth (Bi) and/or ytterbium (Yb), and

wherein the optical control layer comprises:

a color pattern part non-overlapping the luminous area; and

an overcoat layer disposed on the color pattern part and overlapping each of the luminous area and the non-luminous area.

2 . The display device of claim 1 , further comprising an ultraviolet blocking layer disposed between the display element layer and the optical control layer and/or disposed between the optical control layer and the low reflective window, the ultraviolet blocking layer having a transmittance of about 10% or less with respect to light in a wavelength region of about 410 nm or less, and

wherein the low reflective window has a specular component included (SCI) reflectivity of about 4.12% or less.

3 . The display device of claim 1 , the display device is a cellular phone, a smart phone, a tablet computer, a vehicle navigation system, a portable game console, or a wearable device.

4 . The display device of claim 1 , wherein

the color pattern part comprises a first colorant, or the color pattern part comprises the first colorant and a black colorant, and

the first colorant comprises a red colorant, a green colorant, and/or a blue colorant.

5 . The display device of claim 4 , wherein a weight of the first colorant is less than about 50 wt % based on a total weight of the color pattern part.

6 . The display device of claim 4 , wherein,

where the color pattern part comprises any one colorant among the red colorant, the green colorant, and/or the blue colorant, a weight of the any one colorant is about 15 wt % or less based on a total weight of the color pattern part, and

where the color pattern part comprises any two colorants among the red colorant, the green colorant, and the blue colorant, a weight of each of the any two colorants is about 15 wt % or less based on a total weight of the color pattern part.

7 . The display device of claim 1 , wherein the color pattern part has an optical density (OD) of about 1.0 or more per 1 μm of a unit thickness.

8 . The display device of claim 1 , wherein the color pattern part has a transmittance of about 80% or more with respect to light in a wavelength region of about 940 nm or more and has a specular component included (SCI) reflectivity of less than about 5%.

9 . The display device of claim 1 , wherein the low reflective layer has a refractive index of about 1.4 to about 3.0, and has an absorption coefficient (k) of about 1.5 or less.

10 . The display device of claim 1 , wherein

the display element layer further comprises a capping layer disposed between the second electrode and the low reflective layer,

a thickness of the second electrode is about 95 Å to about 200 Å,

a thickness of the capping layer is about 200 Å to about 1000 Å, and

a thickness of the low reflective layer is about 50 Å to about 150 Å.

11 . The display device of claim 1 , wherein

the display element layer further comprises an encapsulation part disposed on the low reflective layer, and

the encapsulation part comprises a first encapsulation layer, a second encapsulation layer stacked on the first encapsulation layer, and a third encapsulation layer stacked on the second encapsulation layer, wherein a refractive index of the second encapsulation layer is smaller than each of a refractive index of the first encapsulation layer and a refractive index of the third encapsulation layer.

12 . The display device of claim 11 , wherein

the refractive index of the first encapsulation layer is about 1.6 to about 2.2,

the refractive index of the second encapsulation layer is about 1.2 to about 1.8, and

the refractive index of the third encapsulation layer is about 1.5 to about 2.1.

13 . The display device of claim 11 , wherein

the first encapsulation layer comprises silicon nitride, and the second encapsulation layer and the third encapsulation layer each comprise silicon oxynitride,

a thickness of the first encapsulation layer is about 200 Å to about 3000 Å, a thickness of the second encapsulation layer is about 500 Å to about 4000 Å, and a thickness of the third encapsulation layer is about 4000 Å to about 12000 Å.

14 . The display device of claim 1 , further comprising an input sensitive layer disposed between the display element layer and the optical control layer,

wherein the input sensitive layer comprises a first conductive layer, a second conductive layer disposed on the first conductive layer, and a touch insulating layer disposed between the first conductive layer and the second conductive layer, and

wherein the touch insulating layer and/or the overcoat layer comprises a second colorant, the second colorant comprising a red colorant, a green colorant, and/or a blue colorant.

15 . The display device of claim 14 , wherein the second colorant absorbs light in a wavelength region of about 420 nm to about 440 nm, or in a wavelength region of about 570 nm to about 590 nm.

16 . The display device of claim 14 , wherein,

where the touch insulating layer comprises the second colorant, a weight of the second colorant is about 3 wt % or less based on a total weight of the touch insulating layer, and

where the overcoat layer comprises the second colorant, a weight of the second colorant is about 3 wt % or less based on a total weight of the overcoat layer.

17 . The display device of claim 14 , wherein,

where the touch insulating layer comprises the second colorant, the touch insulating layer has a transmittance of about 90% or more with respect to light in a wavelength region of about 380 nm to about 780 nm, and

where the overcoat layer comprises the second colorant, the overcoat layer has a transmittance of about 90% or more with respect to light in a wavelength region of about 380 nm to about 780 nm.

18 . A display device, comprising:

a display element layer;

an optical control layer disposed on the display element layer; and

a low reflective window disposed on the optical control layer and having a specular component included (SCI) reflectivity of about 4.12% or less,

wherein the display element layer comprises:

a pixel definition film in which a pixel opening is defined;

a first electrode exposed through the pixel opening;

an emission layer disposed on the first electrode;

a second electrode disposed on the emission layer; and

a low reflective layer disposed on the second electrode and comprising bismuth (Bi) and/or ytterbium (Yb), and

wherein the optical control layer comprises:

a color pattern part in which a pattern opening overlapping the pixel opening is defined, the color pattern part comprising a red colorant, a green colorant, and/or a blue colorant; and

an optically transparent overcoat layer filling the pattern opening on the color pattern part.

19 . The display device of claim 18 , wherein the overcoat layer comprises an optical clear adhesive (OCA) and/or a pressure sensitive adhesive (PSA).

20 . The display device of claim 18 , further comprising an ultraviolet blocking layer disposed between the display element layer and the optical control layer and/or disposed between the optical control layer and the low reflective window, wherein the ultraviolet blocking layer has a transmittance of about 10% or less with respect to light in a wavelength region of about 410 nm or less.