Window and display device including same

Abstract

The invention discloses a window and a display device including the same. The window includes: a base substrate; at least one light control layer disposed on the base substrate and controlling light having a wavelength of about 280 nm or less; and a coating layer disposed on the at least one light control layer.

Description

Technical Field

[0001] Embodiments relate to a window and more particularly to a window and a display device including the window. Background Art

[0002] The display device includes a display panel that generates and displays an image and a window that is arranged on the display panel and covers the display panel. The window can transmit the image displayed on the display panel and provide it to the viewer. In addition, the window can protect the display panel from external impact. Generally, the window can include a glass substrate, a sapphire substrate, a plastic film, etc. Summary of the invention

[0003] Embodiments provide a window with improved reliability.

[0004] The embodiment provides a display device including the window.

[0005] A window according to an embodiment of the present disclosure includes: a base substrate; at least one light control layer disposed on the base substrate and controlling light having a wavelength of about 280 nanometers (nm) or less; and a coating layer disposed on the at least one light control layer.

[0006] In an embodiment, the at least one light control layer may include: at least one light absorption layer disposed on the base substrate and absorbing light having a wavelength of about 280 nm or less; and at least one refractive layer disposed on the base substrate.

[0007] In an embodiment, the at least one light absorbing layer may include benzotriazole, triazine, benzimidazole, ZnO, and TiO 2 At least one of .

[0008] In an embodiment, the at least one refractive layer may include MgF 2 , CaF 2 , BaF 2 , LiF and CeF 3 At least one of .

[0009] In an embodiment, a thickness of each of the at least one refractive layer may be about 50 nm to about 100 nm.

[0010] In an embodiment, one of the at least one light absorbing layer may be disposed between the base substrate and the at least one refractive layer.

[0011] In an embodiment, the at least one refractive layer may be disposed between the base substrate and one of the at least one light absorbing layer.

[0012] In an embodiment, the base substrate may be a sapphire substrate.

[0013] In an embodiment, the sapphire substrate may be doped with dopants.

[0014] In an embodiment, the dopant may include at least one of Ti, Co, Cr, Fe, and Cu.

[0015] In an embodiment, the window may further include an inorganic layer disposed between the base substrate and the coating layer.

[0016] According to an embodiment of the present disclosure, a display device includes: a display panel including at least one light-emitting element; a base substrate disposed on the display panel; at least one light-control layer disposed on the base substrate and controlling light having a wavelength below approximately 280 nm; and a coating disposed on the at least one light-control layer.

[0017] In an embodiment, the at least one light control layer may include: at least one light absorption layer disposed on the base substrate and absorbing light having a wavelength of about 280 nm or less; and at least one refractive layer disposed on the base substrate.

[0018] In an embodiment, the at least one light absorbing layer may include benzotriazole, triazine, benzimidazole, ZnO, and TiO 2 At least one of .

[0019] In an embodiment, the at least one refractive layer may include MgF 2 , CaF 2 , BaF 2 , LiF and CeF 3 At least one of .

[0020] In an embodiment, a thickness of each of the at least one refractive layer may be about 50 nm to about 100 nm.

[0021] In an embodiment, the base substrate may be a sapphire substrate.

[0022] In an embodiment, the sapphire substrate may be doped with dopants.

[0023] In an embodiment, the dopant may include at least one of Ti, Co, Cr, Fe, and Cu.

[0024] In an embodiment, the display device may further include an inorganic layer disposed between the base substrate and the coating layer.

[0025] In an embodiment, the display device may further include an adhesive layer disposed between the display panel and the base substrate.

[0026] In a display device according to an embodiment of the present disclosure, the display device may include: a display panel, a window, and an adhesive layer disposed between the display panel and the window. The window may include a light control layer. The light control layer may absorb light in the ultraviolet-C (UV-C) region and may refract light in the UV-C region. Accordingly, light in the UV-C region may be prevented from passing through the window to the adhesive layer. Therefore, since problems such as bubbles inside the adhesive layer or reduced adhesion of the adhesive layer that may be caused by light in the UV-C region may be prevented, the display quality of the display device may be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a plan view illustrating a display device according to an embodiment of the present disclosure.

[0028] Figure 2 It is a graphic Figure 1 A cross-sectional view of a display device.

[0029] Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram is included in Figure 1 A cross-sectional view of a window in a display device.

[0030] Figure 8 The diagram is included in Figure 1 A cross-sectional view of a display panel in a display device.

[0031] Fig. 9 is a cross-sectional view illustrating a window included in a display device according to another embodiment of the present disclosure.

[0032] Fig.10 is a cross-sectional view illustrating a window included in a display device according to still another embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] The terms used in this article are only used for the purpose of describing specific embodiments, and are not intended to be limited. As used in this article, "one", "the (described)" and "at least one" do not represent quantitative restrictions, and are intended to include both the singular and the plural, unless the context clearly indicates otherwise. For example, "element" has the same meaning as "at least one element", unless the context clearly indicates otherwise. "At least one" will not be interpreted as being limited to "one". "Or" refers to "and / or". As used in this article, the term "and / or" includes any and all combinations of one or more of the related listed items. It will be further understood that the term "include" and / or its variants or "comprising" and / or its variants when used in this specification indicate the existence of stated features, regions, wholes, steps, operations, elements and / or parts, but does not exclude the existence or addition of one or more other features, regions, wholes, steps, operations, elements, parts and / or its groups.

[0034] It will be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or directly connected to the other element, or intervening elements may be present therebetween. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements.

[0035] As used herein, "approximately" or "approximately" includes the stated value and refers to within an acceptable deviation range for that particular value as determined by a person of ordinary skill in the art, taking into account the measurements in question and the errors associated with the measured values ​​of a particular quantity (i.e., the limitations of the measurement system). For example, "approximately" may mean within one or more standard deviations, or within ±10% or ±5% of the stated value. Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the accompanying drawings, and redundant descriptions of the same components will be omitted.

[0036] Figure 1 is a plan view illustrating a display device according to an embodiment of the present disclosure.

[0037] refer to Figure 1 , the display device 10 according to an embodiment of the present disclosure may include a display area DA and a non-display area NDA.

[0038] The display area DA may be an area where an image is displayed. In the display area DA, a plurality of pixels may be repeatedly arranged along a first direction D1 in a plan view and a second direction D2 intersecting the first direction D1. For example, the second direction D2 may be perpendicular to the first direction D1. Each of the pixels may be defined as a minimum light-emitting unit that emits light.

[0039] Signal lines such as gate lines or data lines may be provided in the display area DA. The signal lines may be connected to each of the pixels. Each of the pixels may receive a gate signal or a data signal, etc. from the signal lines. Accordingly, an image may be displayed in the display area DA in a third direction D3 intersecting each of the first direction D1 and the second direction D2. For example, the third direction D3 may be perpendicular to each of the first direction D1 and the second direction D2.

[0040] The non-display area NDA may be an area where no image is displayed. The non-display area NDA may be disposed around the display area DA. In an embodiment, for example, the non-display area NDA may surround the entire display area DA. A driver for image display of the display area DA may be disposed in the non-display area NDA.

[0041] Figure 2 It is a graphic Figure 1 A cross-sectional view of a display device.

[0042] refer to Figure 1 and Figure 2 , the display device 10 may include a display panel 200 , a window 100 , and an adhesive layer 300 .

[0043] The display panel 200 may include pixels for displaying an image. The display panel 200 may emit light upward (ie, in the third direction D3) to display an image.

[0044] The window 100 may be disposed on the display panel 200. The window 100 may cover the upper surface of the display panel 200. The window 100 may block foreign matter that penetrates from the outside, and may prevent the display panel 200 from being damaged or malfunctioning due to external impact. The window 100 may be optically transparent. Accordingly, the window 100 may transmit light emitted from the display panel 200.

[0045] The adhesive layer 300 may be disposed between the display panel 200 and the window 100. The adhesive layer 300 may adhere the display panel 200 and the window 100 to each other. In an embodiment, for example, the adhesive layer 300 may include a pressure sensitive adhesive ("PSA"), an optically clear adhesive ("OCA"), an optically clear resin ("OCR"), or the like.

[0046] In an embodiment, at least one functional coating may be further provided between the display panel 200 and the window 100. The functional coating may include a single layer or multiple layers. The functional coating may include an optical coating for improving the visibility of the display device 10, a primer coating for improving the adhesion between the display panel 200 and the window 100, or a high-strength coating for improving the impact resistance of the display device 10, etc.

[0047] Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram is included in Figure 1 A cross-sectional view of a window in a display device.

[0048] refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the window 100 may include a base substrate SSUB, a light control layer LCL, an inorganic layer IOL, and a coating layer CL.

[0049] The base substrate SSUB may be used as the body of the window 100. In an embodiment, for example, the base substrate SSUB may include glass, sapphire, plastic, or the like. In an embodiment, the base substrate SSUB may be a sapphire substrate. When the base substrate SSUB is a sapphire substrate, the transmittance of the base substrate SSUB to light having a wavelength of about 280 nanometers (nm) or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm) may be relatively high. In an embodiment, for example, the base substrate SSUB may transmit light in the ultraviolet-C (UV-C) region. Accordingly, the light in the UV-C region may pass through the window 100 to reach the adhesive layer 300.

[0050] In another embodiment, the base substrate SSUB may be a sapphire substrate doped with a dopant. The dopant may be a transition metal having a relatively small size. In an embodiment, for example, the dopant may include at least one of titanium (Ti), cobalt (Co), chromium (Cr), iron (Fe), and copper (Cu), but the present disclosure is not limited thereto. In another embodiment, the base substrate SSUB may be formed from a sapphire melt including a dopant. When the base substrate SSUB is a doped sapphire substrate, the transmittance of the base substrate SSUB to light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm) may be relatively low. In an embodiment, for example, the base substrate SSUB may block light in the UV-C region. Accordingly, light in the UV-C region may be prevented from passing through the window 100 to reach the adhesive layer 300.

[0051] The light control layer LCL may be disposed on the base substrate SSUB. In an embodiment, the light control layer LCL may control light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm). The light control layer LCL may include a light absorption layer LAL and a refractive layer RL.

[0052] The light absorbing layer LAL may be disposed on the base substrate SSUB. The light absorbing layer LAL may absorb light having a specific wavelength range. In an embodiment, the light absorbing layer LAL may absorb light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm). In an embodiment, for example, the light absorbing layer LAL may absorb light in the UV-C region. That is, the light absorbing layer LAL may prevent light in the UV-C region from passing through the base substrate SSUB. Accordingly, light in the UV-C region may be prevented from passing through the window 100 to reach the adhesive layer 300.

[0053] In an embodiment, the light absorbing layer LAL may include benzotriazole, triazine, benzimidazole, ZnO, and TiO 2 However, the present disclosure is not limited thereto, and the light absorbing layer LAL may include various materials that absorb light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm).

[0054] The light absorbing layer LAL may have a relatively thin thickness. Accordingly, the stacking order of the light absorbing layer LAL may be variously changed. In an embodiment, the light absorbing layer LAL may be disposed between the base substrate SSUB and the refractive layer RL (see Figure 3 In another embodiment, the light absorbing layer LAL may be disposed between the refractive layer RL and the inorganic layer IOL (see Figure 4 In yet another embodiment, the light absorbing layer LAL may be disposed between the inorganic layer IOL and the coating CL (see Figure 5 ).

[0055] In an embodiment, there may be a plurality of light absorbing layers LAL. When there are a plurality of light absorbing layers LAL, the light absorbing layers LAL may be disposed between the base substrate SSUB and the coating layer CL in various ways. In an embodiment, for example, one of the light absorbing layers LAL may be disposed between the base substrate SSUB and the refractive layer RL, and another of the light absorbing layers LAL may be disposed between the refractive layer RL and the coating layer CL (see Figure 6 ). However, the present disclosure is not limited thereto, and the stacking order of the light absorbing layer LAL may be variously changed. Figure 6 In the embodiment, the window 100 is illustrated as including two light absorbing layers LAL, but the present disclosure is not limited thereto. For another example, the window 100 may include three or more light absorbing layers LAL, and the stacking order of the light absorbing layers LAL may be variously changed.

[0056] The refractive layer RL may be disposed on the base substrate SSUB. The refractive layer RL may change the path of the light by refracting the light. In an embodiment, for example, the refractive layer RL may include a material having a relatively low refractive index. In an embodiment, the refractive layer RL may refract light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm). In an embodiment, for example, the refractive layer RL may refract light in the UV-C region. That is, the refractive layer RL may prevent light in the UV-C region from passing through the base substrate SSUB. Accordingly, light in the UV-C region may be prevented from passing through the window 100 to reach the adhesive layer 300.

[0057] In an embodiment, the refractive layer RL may include MgF 2 , CaF 2 , BaF 2 , LiF and CeF 3 However, the present disclosure is not limited thereto, and the refractive layer RL may include various materials having a relatively low refractive index for light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm).

[0058] In an embodiment, the thickness of the refractive layer RL may be about 50 nm to about 100 nm. When the thickness of the refractive layer RL is less than about 50 nm, light in the UV-C region may not be sufficiently refracted, and when the thickness of the refractive layer RL is greater than about 100 nm, the light transmittance of the window 100 may be reduced. However, in the present disclosure, the thickness of the refractive layer RL is not limited thereto.

[0059] In an embodiment, there may be a plurality of refractive layers RL. When there are a plurality of refractive layers RL, the refractive layers RL may be disposed between the base substrate SSUB and the coating layer CL in various ways. In an embodiment, for example, the refractive layers RL may be sequentially disposed on the light absorbing layer LAL (see Figure 7 ). However, the present disclosure is not limited thereto, and the stacking order of the refractive layers RL may be variously changed. Figure 7 In the embodiment, the window 100 is illustrated as including two refractive layers RL, but the present disclosure is not limited thereto. For another example, the window 100 may include three or more refractive layers RL, and the stacking order of the refractive layers RL may be variously changed.

[0060] The inorganic layer IOL may be disposed on the refractive layer RL. The inorganic layer IOL may bond the refractive layer RL and other components to each other, and may improve the hardness of the window 100. That is, the inorganic layer IOL may improve the adhesion of the refractive layer RL. In an embodiment, for example, the inorganic layer IOL may improve the adhesion between the refractive layer RL and the coating CL.

[0061] In an embodiment, the inorganic layer IOL may include silicon oxide. In an embodiment, for example, the inorganic layer IOL may include SiO 2 However, the present disclosure is not limited thereto, and the inorganic layer IOL may include various materials that improve the adhesion of the refractive layer RL.

[0062] In an embodiment, the thickness of the inorganic layer IOL may be about 10 nm to about 20 nm. When the thickness of the inorganic layer IOL is less than 10 nm, the inorganic layer IOL may not be able to sufficiently improve the adhesion of the refractive layer RL, and when the thickness of the inorganic layer IOL is greater than 20 nm, the light transmittance of the window 100 may be reduced. However, in the present disclosure, the thickness of the inorganic layer IOL is not limited thereto.

[0063] In an embodiment, there may be a plurality of inorganic layer IOLs. When there are a plurality of inorganic layer IOLs, the inorganic layer IOLs may be disposed between the base substrate SSUB and the coating CL in various ways. In an embodiment, for example, the inorganic layer IOLs may be disposed on the refractive layer RL, respectively (see Figure 7 ). However, the present disclosure is not limited thereto, and the stacking order of the inorganic layer IOL may be variously changed. Figure 7 In the embodiment, the window 100 is illustrated as including two inorganic layer IOLs, but the present disclosure is not limited thereto. For another example, the window 100 may include three or more inorganic layer IOLs, and the stacking order of the inorganic layer IOLs may be variously changed.

[0064] In another embodiment, the inorganic layer IOL may be omitted. That is, the window 100 may not include the inorganic layer IOL.

[0065] The coating CL may be disposed on the light absorbing layer LAL, the refractive layer RL, and the inorganic layer IOL. The coating CL may protect the surface of the window 100 by suppressing the wear of the surface of the window 100. The coating CL may include a fluorine-based polymer. In an embodiment, for example, the coating CL may include perfluoropolyether ("PEPE"). However, the present disclosure is not limited thereto, and the coating CL may include various materials for protecting the surface of the window 100.

[0066] In an embodiment, for example, the thickness of the coating layer CL may be about 20 nm to about 50 nm. When the thickness of the coating layer CL is less than 20 nm, the surface of the window 100 may not be sufficiently protected, and when the thickness of the coating layer CL is greater than about 50 nm, the light transmittance of the window 100 may be reduced. However, in the present disclosure, the thickness of the coating layer CL is not limited thereto.

[0067] Figure 8 The diagram is included in Figure 1 A cross-sectional view of a display panel in a display device.

[0068] refer to Figure 8 The display panel 200 may include a substrate SUB, an active pattern ACT, a first insulating layer IL1, a gate electrode GAT, a second insulating layer IL2, a first connection electrode SD1, a second connection electrode SD2, a third insulating layer IL3, a pixel electrode PE, a pixel defining layer PDL, a light emitting layer EL, a common electrode CE, and an encapsulation layer ENC.

[0069] The substrate SUB may include a transparent material or an opaque material. The substrate SUB may include glass, quartz, or plastic, etc. These may be used alone or in combination with each other.

[0070] The active pattern ACT may be disposed on the substrate SUB. The active pattern ACT may include a source region, a drain region, and a channel region between the source region and the drain region. The active pattern ACT may include a silicon semiconductor material or an oxide semiconductor material. Examples of silicon semiconductor materials may include amorphous silicon or polycrystalline silicon, etc. Examples of oxide semiconductor materials may include indium gallium zinc oxide ("IGZO") or indium tin zinc oxide ("ITZO"), etc. These may be used alone or in combination with each other.

[0071] The first insulating layer IL1 may be disposed on the substrate SUB and may cover the active pattern ACT. The first insulating layer IL1 may include an inorganic material such as silicon oxide, silicon nitride, silicon carbide, silicon oxynitride, or silicon oxycarbide, etc. These may be used alone or in combination with each other.

[0072] The gate electrode GAT may be disposed on the first insulating layer IL1. In a plan view, the gate electrode GAT may overlap with a channel region of the active pattern ACT. The gate electrode GAT may include a metal, an alloy, a conductive metal oxide, a metal nitride, or the like. Examples of metals may include silver (Ag), molybdenum (Mo), aluminum (Al), tungsten (W), copper (Cu), nickel (Ni), chromium (Cr), titanium (Ti), tantalum (Ta), platinum (Pt), or scandium (Sc), or the like. Examples of conductive metal oxides may include indium tin oxide or indium zinc oxide, or the like. Examples of metal nitrides may include aluminum nitride (AlN x ), tungsten nitride (WN x) or chromium nitride (CrN x ) etc. These may be used alone or in combination with each other.

[0073] The second insulating layer IL2 may be disposed on the first insulating layer IL1 and may cover the gate electrode GAT. The second insulating layer IL2 may include an inorganic material such as silicon oxide, silicon nitride, silicon carbide, silicon oxynitride, or silicon oxycarbide, etc. These may be used alone or in combination with each other.

[0074] The first connection electrode SD1 and the second connection electrode SD2 may be disposed on the second insulating layer IL2. The first connection electrode SD1 may be connected to the source region of the active pattern ACT through a first contact hole penetrating the first insulating layer IL1 and the second insulating layer IL2. In addition, the second connection electrode SD2 may be connected to the drain region of the active pattern ACT through a second contact hole penetrating the first insulating layer IL1 and the second insulating layer IL2. In an embodiment, for example, each of the first connection electrode SD1 and the second connection electrode SD2 may include a metal, an alloy, a conductive metal oxide or a metal nitride, etc. These may be used alone or in combination with each other.

[0075] Accordingly, the transistor TR including the active pattern ACT, the gate electrode GAT, the first connection electrode SD1 and the second connection electrode SD2 may be disposed on the substrate SUB.

[0076] The third insulating layer IL3 may be disposed on the second insulating layer IL2. The third insulating layer IL3 may fully cover the first connection electrode SD1 and the second connection electrode SD2. The third insulating layer IL3 may include an organic material such as phenolic resin, acrylic resin, polyimide resin, polyamide resin, siloxane resin, or epoxy resin. These may be used alone or in combination with each other.

[0077] The pixel electrode PE may be disposed on the third insulating layer IL3. The pixel electrode PE may be connected to the second connection electrode SD2 through a contact hole penetrating the third insulating layer IL3. The pixel electrode PE may include a metal, an alloy, a conductive metal oxide or a metal nitride, etc. These may be used alone or in combination with each other. In an embodiment, for example, the pixel electrode PE may be used as an anode.

[0078] The pixel defining layer PDL may be disposed on the third insulating layer IL3. The pixel defining layer PDL may cover at least a portion of the pixel electrode PE. In an embodiment, for example, the pixel defining layer PDL may cover an edge of the pixel electrode PE. That is, an opening exposing at least a portion of the upper surface of the pixel electrode PE may be defined in the pixel defining layer PDL.

[0079] The light emitting layer EL may be disposed on the pixel electrode PE. Specifically, the light emitting layer EL may be disposed on the pixel electrode PE exposed by the opening of the pixel defining layer PDL. The light emitting layer EL may include an organic material that emits light of a preset color.

[0080] The common electrode CE may be disposed on the light emitting layer EL and the pixel defining layer PDL. The common electrode CE may be a plate-shaped electrode. The common electrode CE may include a metal, an alloy, a conductive metal oxide or a metal nitride, etc. These may be used alone or in combination with each other. In an embodiment, for example, the common electrode CE may be used as a cathode.

[0081] Accordingly, a light emitting element LE including a pixel electrode PE, a light emitting layer EL, and a common electrode CE may be disposed on the substrate SUB. The light emitting element LE may be electrically connected to the transistor TR. The light emitting element LE may emit light corresponding to a driving current of the transistor TR.

[0082] The encapsulation layer ENC may be disposed on the common electrode CE. The encapsulation layer ENC may protect the light emitting element LE from external oxygen and moisture. The encapsulation layer ENC may include at least one inorganic layer and at least one organic layer.

[0083] The display device 10 according to an embodiment of the present disclosure may include a window 100 including a light control layer LCL. The light control layer LCL may include a light absorption layer LAL and a refraction layer RL. The light absorption layer LAL may absorb light in the UV-C region, and the refraction layer RL may refract light in the UV-C region. Accordingly, light in the UV-C region may be prevented from passing through the window 100 to the adhesive layer 300. Therefore, since problems such as bubbles inside the adhesive layer 300 or reduced adhesion of the adhesive layer 300 that may be caused by light in the UV-C region may be prevented, the display quality of the display device 10 may be effectively improved.

[0084] Fig. 9 is a cross-sectional view illustrating a window included in a display device according to another embodiment of the present disclosure.

[0085] In the following, the contents included in the reference will be omitted or simplified. Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The description of the window 100 in the display device 10 is repeated.

[0086] refer to Fig. 9 , the window included in the display device 20 according to another embodiment of the present disclosure may include a base substrate SSUB, a light control layer LCL′, an inorganic layer IOL, and a coating layer CL.

[0087] In an embodiment, the base substrate SSUB may be a sapphire substrate. In this case, the transmittance of the base substrate SSUB to light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm) may be relatively high. In an embodiment, for example, the base substrate SSUB may transmit light in the UV-C region.

[0088] The light control layer LCL' may be disposed on the base substrate SSUB. In an embodiment, the light control layer LCL' may control light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm). The light control layer LCL' may include a light absorption layer LAL.

[0089] In an embodiment, the light absorbing layer LAL may absorb light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm). In an embodiment, for example, the light absorbing layer LAL may absorb light in the UV-C region and may prevent light in the UV-C region from passing through the base substrate SSUB. Accordingly, light in the UV-C region may be prevented from passing through the window to the adhesive layer disposed under the window. In an embodiment, the light absorbing layer LAL may include benzotriazole, triazine, benzimidazole, ZnO, and TiO 2 At least one of , but the present disclosure is not limited thereto.

[0090] The inorganic layer IOL may be disposed on the light absorbing layer LAL. The inorganic layer IOL may bond the light absorbing layer LAL and other components to each other to improve the hardness of the window. In an embodiment, for example, the inorganic layer IOL may improve the adhesion between the light absorbing layer LAL and the coating CL. In an embodiment, the inorganic layer IOL may be omitted, and the window of the display device 20 may not include the inorganic layer IOL.

[0091] exist Fig. 9 In the embodiment, the window is illustrated as including one light absorbing layer LAL and one inorganic layer IOL, but the present disclosure is not limited thereto. For another example, the window may include two or more light absorbing layers LAL and / or two or more inorganic layers IOL, and the stacking order of the light absorbing layer LAL and the inorganic layer IOL may be variously changed.

[0092] The display device 20 according to another embodiment of the present disclosure may include a window including a light control layer LCL'. The light control layer LCL' can absorb light in the UV-C region. Accordingly, the light in the UV-C region can be prevented from penetrating the base substrate SSUB and passing through the window to the adhesive layer. Therefore, since problems such as bubbles inside the adhesive layer or reduced adhesion of the adhesive layer that may be caused by light in the UV-C region can be prevented, the display quality of the display device 20 can be effectively improved.

[0093] Fig.10 is a cross-sectional view illustrating a window included in a display device according to still another embodiment of the present disclosure.

[0094] In the following, the contents included in the reference will be omitted or simplified. Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The description of the window 100 in the display device 10 is repeated.

[0095] refer to Fig.10 , a window included in a display device 30 according to still another embodiment of the present disclosure may include a base substrate SSUB, a light control layer LCL", an inorganic layer IOL, and a coating layer CL.

[0096] In an embodiment, the base substrate SSUB may be a sapphire substrate. In this case, the transmittance of the base substrate SSUB to light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm) may be relatively high. In an embodiment, for example, the base substrate SSUB may transmit light in the UV-C region.

[0097] The light control layer LCL" may be disposed on the base substrate SSUB. In an embodiment, the light control layer LCL" may control light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm). The light control layer LCL" may include a refractive layer RL.

[0098] The refractive layer RL may be disposed on the base substrate SSUB. In an embodiment, the refractive layer RL may refract light having a wavelength of about 280 nm or less (specifically, about 100 nm to about 280 nm, and more specifically, about 200 nm to about 250 nm). In an embodiment, for example, the refractive layer RL may refract light in the UV-C region and may prevent the light in the UV-C region from passing through the base substrate SSUB. Accordingly, the light in the UV-C region may be prevented from passing through the window to the adhesive layer disposed below the window. In an embodiment, the refractive layer RL may include MgF 2 , CaF 2 , BaF 2 , LiF and CeF 3 At least one of , but the present disclosure is not limited thereto.

[0099] The inorganic layer IOL may be disposed on the refractive layer RL. The inorganic layer IOL may bond the refractive layer RL and other components to each other to improve the hardness of the window. In an embodiment, for example, the inorganic layer IOL may improve the adhesion between the refractive layer RL and the coating CL. In an embodiment, the inorganic layer IOL may be omitted, and the window of the display device 30 may not include the inorganic layer IOL.

[0100] exist Fig.10 In the embodiment, the window is illustrated as including one refractive layer RL and one inorganic layer IOL, but the present disclosure is not limited thereto. For another example, the window may include two or more refractive layers RL and / or two or more inorganic layers IOL, and the stacking order of the refractive layers RL and the inorganic layers IOL may be variously changed.

[0101] According to another embodiment of the present disclosure, the display device 30 may include a window including a light control layer LCL". The light control layer LCL" may refract light having a wavelength of about 280nm or less (specifically, about 100nm to about 280nm, and more specifically, about 200nm to about 250nm). Accordingly, light in the UV-C region can be prevented from transmitting through the base substrate SSUB and passing through the window to the adhesive layer. Therefore, since problems such as bubbles inside the adhesive layer or reduced adhesion of the adhesive layer that may be caused by light in the UV-C region can be prevented, the display quality of the display device 30 can be effectively improved.

[0102] The present disclosure can be applied to the manufacturing process of various display devices. In an embodiment, for example, the present disclosure is applicable to the manufacturing process of various display devices such as display devices for vehicles, ships and aircraft, portable communication devices, display devices for exhibitions or information transmission, and medical display devices.

[0103] The foregoing is an illustration of the embodiments and will not be construed as limiting them. Although some embodiments have been described, it will be readily appreciated by those skilled in the art that many modifications are possible in the embodiments without substantially departing from the novel teachings and advantages of the present invention. Accordingly, all such modifications are intended to be included within the scope of the present invention as defined in the claims. Therefore, it will be understood that the foregoing is an illustration of various embodiments and will not be construed as being limited to the specific embodiments disclosed, and modifications to the disclosed embodiments as well as other embodiments are intended to be included within the scope of the claims.

Claims

1. A window comprising: base substrate; at least one light control layer disposed on the base substrate and controlling light having a wavelength of 280 nm or less; as well as A coating is disposed on the at least one light management layer.

2. The window according to claim 1, wherein: The at least one light control layer comprises: at least one light absorbing layer disposed on the base substrate and absorbing the light having the wavelength of 280 nm or less; and At least one refractive layer is disposed on the base substrate.

3. The window according to claim 2, wherein: The at least one light absorbing layer includes at least one of benzotriazole, triazine, benzimidazole, ZnO, and TiO2.

4. The window according to claim 2, wherein: The at least one refractive layer includes at least one of MgF2, CaF2, BaF2, LiF, and CeF3.

5. The window according to claim 2, wherein: The thickness of each of the at least one refractive layer is 50 nm to 100 nm.

6. The window according to claim 2, wherein: One of the at least one light absorbing layer is disposed between the base substrate and the at least one refractive layer.

7. The window according to claim 2, wherein: The at least one refractive layer is disposed between the base substrate and one of the at least one light absorbing layer.

8. The window according to claim 1, wherein: The base substrate is a sapphire substrate.

9. The window according to claim 8, wherein: The sapphire substrate is doped with a dopant.

10. The window according to claim 9, wherein: The dopant includes at least one of Ti, Co, Cr, Fe and Cu.

11. The window according to claim 1, further comprising: The inorganic layer is disposed between the base substrate and the coating layer.

12. A display device, comprising: A display panel including at least one light emitting element; as well as The window according to any one of claims 1 to 11, Wherein the base substrate is disposed on the display panel.

13. The display device according to claim 12, further comprising: An adhesive layer is disposed between the display panel and the base substrate.

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