Display device and manufacturing method therefor

Abstract

The present invention relates to a display device capable of improving image quality by minimizing light leakage, and a manufacturing method therefor, the display device comprising: a base substrate; a display element disposed on the base substrate in a display area; an encapsulation layer on the display element; and a light-blocking layer disposed on the encapsulation layer in the non-display area.

Description

Display device and method for manufacturing the same

[0001] The present invention relates to a display device, and more particularly, to a display device capable of improving image quality by minimizing light leakage and a method for manufacturing the same.

[0002] Various types of electronic devices, including display modules, are used to provide image information. These electronic devices may include electronic modules that receive external signals or provide output signals to an external source. For example, electronic modules may include camera modules, and demand for display devices capable of capturing high-quality captured images is increasing.

[0003] The purpose of the present invention is to provide a display device capable of improving image quality by minimizing light leakage and a method for manufacturing the same.

[0004] The tasks of the present invention are not limited to the tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0005] A display device according to one embodiment of the present invention for achieving the above purpose includes: a base substrate (100); a display element (200) disposed on the base substrate in the display area (DA); an encapsulation layer (300) on the display element; and a light-blocking layer (800) disposed on the encapsulation layer in the non-display area (NDA).

[0006] The above light-shielding layer is arranged along the edge of the upper surface of the base substrate and the edge of the upper surface of the sealing layer.

[0007] From a planar perspective, the light-shielding layer surrounds at least one of the encapsulating layer, the display element, and the display area of ​​the base substrate.

[0008] From a planar perspective, the light-shielding layer has a closed curve shape surrounding at least one of the sealing layer, the display element, and the display area of ​​the base substrate.

[0009] In the non-display area of ​​the base substrate, the light-shielding layer is disposed directly above the encapsulating layer.

[0010] In the non-display area of ​​the base substrate, the light-shielding layer is in contact with the sealing layer.

[0011] The interface between the above-mentioned light-shielding layer and the above-mentioned sealing layer has a round shape.

[0012] It further includes an adhesive layer on the sealing layer and the light-shielding layer.

[0013] It further includes a touch sensing unit (900) disposed between the sealing layer and the adhesive layer, and disposed between the sealing layer and the light-shielding layer.

[0014] The above light-shielding layer is in contact with the touch sensing unit.

[0015] It further includes a first planarization layer (910) between the above-mentioned sealing layer and the above-mentioned touch sensing unit.

[0016] It further includes a second planarization layer (920) disposed between the touch sensing unit and the adhesive layer, and disposed between the touch sensing unit and the light-shielding layer.

[0017] It further includes a protective substrate (500) on the above adhesive layer.

[0018] It further includes a polarizing plate (600) on the above protective substrate.

[0019] The above-mentioned light-shielding layer is disposed on the protective substrate so as to overlap the edge of the above-mentioned sealing layer.

[0020] The above light-shielding layer is placed directly on the above protective substrate.

[0021] From a planar perspective, the shading layer surrounds the polarizing plate.

[0022] The above-mentioned light-shielding layer includes a first light-shielding layer (800) positioned directly above the sealing layer; and a second light-shielding layer (820) positioned directly above the protective substrate so as to overlap the sealing layer.

[0023] In the non-display area of ​​the base substrate, a dam (350) is further included that is placed on the base substrate so as to overlap with the light-blocking layer.

[0024] A portion of the above encapsulating layer is disposed between the dam and the light-shielding layer.

[0025] The above light-blocking layer comprises a black pigment or an organic black pigment.

[0026] The above-mentioned shading layer has a rectangular ring shape with four sides.

[0027] The four sides include a first side adjacent to a pad area (PDA) of the base substrate; a second side arranged to face the first side; a third side connected to one end of the first side and one end of the second side; and a fourth side arranged to face the third side and connected to the other end of the first side and the other end of the second side.

[0028] The width of the first side and the width of the second side are the same, and the width of the third side and the width of the third side are different.

[0029] A method for manufacturing a display device according to one embodiment of the present invention for achieving the above-described purpose includes the steps of: arranging a display element on a display area of ​​a base substrate; arranging an encapsulating layer on the display element; and arranging a light-blocking layer on the encapsulating layer in a non-display area of ​​the base substrate.

[0030] Specific details of other embodiments are included in the detailed description and drawings.

[0031] According to the display device of the present invention, the phenomenon of light leakage in the display device can be minimized. Accordingly, the picture quality of the display device can be improved.

[0032] In addition, according to the display device according to the present invention, moisture penetration into the display device can be prevented.

[0033] Meanwhile, the effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0034] FIG. 1 is a schematic plan view of a display device according to one embodiment.

[0035] Figure 2 is a schematic cross-sectional view taken along line I-I' of Figure 1.

[0036] FIGS. 3 to 6 are schematic drawings for explaining a method of manufacturing a display device according to one embodiment.

[0037] Figure 7 is a schematic cross-sectional view of a display device according to one embodiment.

[0038] Figure 8 is a schematic cross-sectional view of a display device according to one embodiment.

[0039] Figure 9 is a schematic cross-sectional view of a display device according to one embodiment.

[0040] Fig. 10 is a schematic cross-sectional view of a display device according to one embodiment.

[0041] Fig. 11 is a schematic cross-sectional view of a display device according to one embodiment.

[0042] Fig. 12 is a schematic cross-sectional view of a display device according to one embodiment.

[0043] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. These embodiments are provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined solely by the scope of the claims.

[0044] When elements or layers are referred to as being "on" another element or layer, this includes both cases where the other element or layer is directly on top of the other element or layer or intervening therebetween. Like reference numerals refer to like elements throughout the specification. The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments are illustrative and therefore the present invention is not limited to the matters illustrated.

[0045] Although terms like "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it should be understood that a "first" component referred to below may also be a "second" component within the technical scope of the present invention.

[0046] The individual features of the various embodiments of the present invention can be partially or wholly combined or combined with each other, and various technical linkages and operations are possible, and each embodiment can be implemented independently of each other or implemented together in a related relationship.

[0047] Specific embodiments are described below with reference to the attached drawings.

[0048] FIG. 1 is a schematic plan view of a display device according to one embodiment, and FIG. 2 is a schematic cross-sectional view taken along line I-I' of FIG. 1.

[0049] A display device according to one embodiment may include a protective layer (700), a base substrate (100), a plurality of display elements (200), an encapsulating layer (300), an adhesive layer (400), a protective substrate (500), a polarizing plate (600), and a light-shielding layer (800), as illustrated in FIGS. 1 and 2.

[0050] The protective layer (700) can perform a light-blocking function and protect the lower surface of the base substrate (100). For example, the protective layer (700) can prevent scratches from occurring on the lower surface of the base substrate (100). To this end, the protective layer (700) can be placed on the lower surface of the base substrate (100).

[0051] A base substrate (100) may be placed on the protective layer (700). The base substrate (100) may be a flexible substrate capable of bending, folding, rolling, etc. For example, the base substrate (100) may include a polymer resin such as polyimide (PI), but is not limited thereto. As another example, the base substrate (100) may include a glass material or a metal material. Here, the glass may be a flexible or rigid glass material, and the metal may be a flexible or rigid metal material. According to an embodiment of the display device, the base substrate (100) may be, for example, ultra-thin glass. The ultra-thin glass may have a very thin thickness, for example, through an etching process. Here, the thickness of the base substrate (100) may mean the size in the third direction (DR3).

[0052] A plurality of display elements (200) may be arranged on a base substrate (100). For example, the display elements (200) may be arranged on the base substrate (100) in a third direction (DR3). At this time, the display elements (200) may be arranged on a display area (DA) of the base substrate (100). The display elements (200) may include a light-emitting element. The light-emitting element may include an anode electrode, a light-emitting layer, and a cathode electrode. The anode electrode, the light-emitting layer, and the cathode electrode may be sequentially stacked along the third direction (DR3). For example, the light-emitting layer may be stacked on the anode electrode in the third direction (DR3), and the cathode electrode may be arranged on the light-emitting layer in the third direction (DR3).

[0053] The light-emitting layer may be an organic light-emitting layer containing an organic material. The light-emitting layer may include a hole transport layer, an organic light-emitting layer, and an electron transport layer. When the anode electrode receives a predetermined voltage through the thin film transistor and the cathode electrode receives a cathode voltage, holes and electrons may move to the organic light-emitting layer through the hole transport layer and the electron transport layer, respectively, and may combine with each other in the organic light-emitting layer to emit light.

[0054] For other examples, the light-emitting device may include a quantum dot light-emitting diode including a quantum dot light-emitting layer, an inorganic light-emitting diode including an inorganic semiconductor, or an ultra-small light-emitting diode.

[0055] An encapsulating layer (300) may be disposed on the display elements (200). For example, the encapsulating layer (300) may be disposed on the display elements (200) in a third direction (DR3). The encapsulating layer (300) may cover the top and side surfaces of each display element (200) and protect the display elements (200). The encapsulating layer (300) may include at least one inorganic film and at least one organic film for encapsulating the display elements (200). For example, the encapsulating layer (300) may include a first inorganic film, an organic film, and a second inorganic film sequentially laminated along the third direction on the base substrate (100).

[0056] A light-shielding layer (800) may be disposed on the encapsulation layer (300) and the base substrate (100). The light-shielding layer (800) may be disposed in the non-display area (NDA) of the base substrate (100), as illustrated in FIGS. 1 and 2. The light-shielding layer (800) may have a closed curve shape surrounding the display area (DA) of the base substrate (100) in a planar view as illustrated in FIG. 1. For example, as illustrated in FIGS. 1 and 2, the light-shielding layer (800) may have a closed curve shape surrounding at least one of the display area (DA), the plurality of display elements (200), and the encapsulation layer (300) in the non-display area (NDA).

[0057] As illustrated in FIG. 2, the light-shielding layer (800) may be disposed on the edge of the upper surface of the base substrate (100). For example, the light-shielding layer (800) may be disposed on the base substrate (100) in the third direction (DR3), and in this case, the light-shielding layer (800) may be disposed along the edge of the upper surface of the base substrate (100). The upper surface of the base substrate (100) may be the surface on which the above-described display elements (200) are disposed.

[0058] The light-shielding layer (800) may be disposed along the edge of the upper surface of the base substrate (100) and the edge of the upper surface of the encapsulation layer (300). The light-shielding layer (800) may face the edge of the upper surface of the base substrate (100) and the edge of the upper surface of the encapsulation layer (300) in a third direction (DR3). At this time, at the edge of the upper surface of the base substrate (100), the light-shielding layer (800) may contact (or directly contact) the upper surface of the base substrate (100). In addition, at the edge of the upper surface of the encapsulation layer (300), the light-shielding layer (800) may contact (or directly contact) the encapsulation layer (300). The edge of the encapsulation layer (300) may be disposed between the base substrate (100) and the light-shielding layer (800).

[0059] As illustrated in FIG. 2, in the non-display area (NDA), the light-shielding layer (800) can be placed directly above the base substrate (100) and directly above the sealing layer (300).

[0060] As shown in Fig. 2, the interface between the shading layer (800) and the sealing layer (300) may have a round shape.

[0061] The light-shielding layer (800) may include a light-absorbing material (or an opaque material). For example, the light-shielding layer (800) may include an inorganic black pigment or an organic black pigment. The inorganic black pigment may be carbon black, and the organic black pigment may include at least one of lactam black, perylene black, and aniline black, but is not limited thereto. For example, the light-shielding layer (800) may be formed of a material including any one of colors other than black, or may include any one of colors other than black. According to one embodiment, the light-shielding layer (800) may include an opaque white material.

[0062] The light-shielding layer (800) may have a rectangular ring shape having four sides, as illustrated in FIG. 1. For example, the four sides may include a first side (S1), a second side (S2), a third side (S3), and a fourth side (S4). The first side (S1) may be disposed adjacent to a pad area (PDA) of a base substrate. The second side (S2) may be disposed to face the first side (S1) in a second direction (DR2). The third side (S3) may be connected to one end of the first side (S1) and one end of the second side (S2). The fourth side (S4) may be disposed to face the third side (S3) in the first direction (DR1) and may be connected to the other end of the first side (S1) and the other end of the second side (S2). The first to fourth sides (S1-S4) can be formed as one unit.

[0063] The opposing sides of the light-shielding layer (800) may have the same width. For example, the first side (S1) and the second side (S2) facing each other in the second direction (DR2) may have the same width. In other words, the width (W1) of the first side (S1) and the width (W2) of the second side (S2) may be the same. In addition, the third side (S3) and the fourth side (S4) facing each other in the first direction (DR1) may have the same width. In other words, the width (W3) of the third side (S3) and the width (W4) of the fourth side (S4) may be the same. However, the present invention is not limited thereto, and the width (W3) of the third side (S3) and the width (W4) of the fourth side (S4) may be different from each other.

[0064] The light-blocking layer (800) can prevent light leakage, in which light provided from the display elements (200) is emitted to the edge of the display device. For example, light from display elements (200) close to the non-display area (NDA) of the base substrate (100) among the display elements (200) can be emitted to the outside through the edge of the display device (e.g., the non-display area (NDA) of the base substrate (100). Therefore, the light-blocking layer (800) described above can block light from the display elements (200) from being emitted to the outside through the edge of the display device. Accordingly, the picture quality of the display device can be improved. In addition, since the light-blocking layer (800) covers the edge of the sealing layer (300) that is vulnerable to sealing, it can block air and moisture from penetrating into the display elements (200) through the edge of the sealing layer (300).

[0065] An adhesive layer (400) may be disposed on the light-shielding layer (800) and the sealing layer (300). For example, the adhesive layer (400) may be disposed on the center of the sealing layer (300) in the display area (DA) of the base substrate (100), and the adhesive layer (400) may be disposed on the edge of the sealing layer (300) and the light-shielding layer (800) in the non-display area (NDA) of the base substrate (100).

[0066] The adhesive layer (400) can be in contact with the light-shielding layer (800) and the sealing layer (300). The adhesive layer (400) can bond the sealing layer (300) and the protective substrate (500) to be described later, and can bond the light-shielding layer (800) and the protective substrate (500) to each other. The adhesive layer (400) can include, for example, a pressure-sensitive adhesive such as an optically clear resin (OCR) or an optically clear adhesive (OCA).

[0067] A protective substrate (500) may be placed on the adhesive layer (400). The protective substrate (500) may be a flexible substrate capable of bending, folding, rolling, etc. For example, the protective substrate (500) may include a polymer resin such as polyimide (PI), but is not limited thereto. As another example, the protective substrate (500) may include a glass material or a metal material. Here, the glass may be a flexible or rigid glass material, and the metal may be a flexible or rigid metal material.

[0068] The protective substrate (500) may overlap with the base substrate (100). For example, the entire protective substrate (500) may be overlapped by the base substrate (100). Meanwhile, the aforementioned protective substrate (500) may have a smaller area than the base substrate (100). For example, the area of ​​the protective substrate (500) along the first direction (DR1) and the second direction (DR2) may be smaller than the area of ​​the base substrate (100) along the first direction (DR1) and the second direction (DR2). At this time, in a planar view, the edge of the protective substrate (500) may be surrounded by the edge of the base substrate (100). In other words, the edge of the base substrate (100) may extend further in the first direction (DR1) and the second direction (DR2) than the edge of the protective substrate (500). In this way, since the area of ​​the protective substrate (500) is smaller than the area of ​​the base substrate (100), the dead space of the display device can be minimized. Meanwhile, as illustrated in FIG. 2, the length of the protective substrate (500) in the first direction (DR1) may be larger than the length of the base substrate (100) in the first direction (DR1), and as illustrated in FIG. 1, the length of the protective substrate (500) in the second direction (DR1) may be smaller than the length of the base substrate (100) in the second direction (DR2).

[0069] A polarizing plate (600) may be placed on the protective substrate (500). For example, the polarizing plate (600) may be placed on the protective substrate (500) in a third direction (DR3). The polarizing plate (600) may include a linear polarizing layer and at least one phase retardation layer. The linear polarizing layer may be an optical layer that linearly polarizes light provided from the outside in one direction. The phase retardation layer may be a λ / 2 phase retardation layer and a λ / 4 phase retardation layer. The polarizing plate (600) may have a function of reducing a reflection phenomenon caused by external light.

[0070] The polarizing plate (600) may overlap with the base substrate (100). For example, the entire polarizing plate (600) may be overlapped by the base substrate (100). Meanwhile, the aforementioned base substrate (100) may have a larger area than the polarizing plate (600). For example, the area of ​​the base substrate (100) along the first direction (DR1) and the second direction (DR2) may be larger than the area of ​​the polarizing plate (600) along the first direction (DR1) and the second direction (DR2). At this time, in a planar view, the edge of the base substrate (100) may surround the edge of the polarizing plate (600). In other words, the edge of the base substrate (100) may extend further in the first direction (DR1) and the second direction (DR2) than the edge of the polarizing plate (600).

[0071] In addition, the polarizing plate (600) may overlap with the protective substrate (500). For example, the entire polarizing plate (600) may be overlapped by the protective substrate (500). Meanwhile, the aforementioned protective substrate (500) may have a larger area than the polarizing plate (600). For example, the area of ​​the protective substrate (500) along the first direction (DR1) and the second direction (DR2) may be larger than the area of ​​the polarizing plate (600) along the first direction (DR1) and the second direction (DR2). At this time, in a planar view, the edge of the polarizing plate (600) may surround the edge of the protective substrate (500). In other words, the edge of the protective substrate (500) may extend further in the first direction (DR1) and the second direction (DR2) than the edge of the polarizing plate (600).

[0072] Meanwhile, although not shown, a color filter may be further placed between the protective substrate (500) and the polarizing plate (600).

[0073] Hereinafter, a method for manufacturing a display device according to one embodiment will be described with reference to the aforementioned FIG. 2 and FIGS. 3 to 6.

[0074] FIGS. 3 to 6 are drawings for explaining a schematic manufacturing method of a display device according to one embodiment.

[0075] First, as shown in FIG. 3 and FIG. 2, display elements (200) may be placed on the display area (DA) of the base substrate (100), and an encapsulation layer (300) may be placed on the display area (DA) and non-display area (NDA) of the base substrate (100) to cover the display elements (200).

[0076] Next, as illustrated in FIG. 4 and FIG. 2, a light-shielding layer (800) may be arranged to cover the edge of the encapsulation layer (300) in the non-display area (NDA) of the base substrate (100). The light-shielding layer (800) may be formed, for example, by jetting a material (e.g., an organic pigment) used in the light-shielding layer (800) using an inkjet device. For example, an organic pigment sprayed from a nozzle of the inkjet device may be formed along the edge of the upper surface of the base substrate (100) and the edge of the upper surface of the encapsulation layer (300). In one embodiment, the light-shielding layer (800) may be formed, for example, by applying a material (e.g., an organic pigment) used in the light-shielding layer (800) using an inkjet device. For example, an organic pigment ejected from a head of an inkjet device may be formed along the edge of the upper surface of the base substrate (100) and the edge of the upper surface of the encapsulating layer (300). In one embodiment, the light-shielding layer (800) may be formed by applying, for example, using an EHD (Electrohydrodynamic) printing device. For example, an organic pigment ejected from a nozzle of an EHD (Electrohydrodynamic) printing device may be formed along the edge of the base substrate (100) and the edge of the encapsulating layer (300).

[0077] Thereafter, the organic pigment formed along the edge of the base substrate (100) and the edge of the encapsulating layer (300) can be cured through a curing process. The curing process can include, for example, at least one of an ultraviolet curing process, a heat curing process, and a room temperature curing process. In other words, the organic pigment can be cured by applying ultraviolet light or heat to the organic pigment. Alternatively, the organic pigment can be naturally cured by being left at room temperature for a certain period of time. The cured organic pigment can function as a light-shielding layer (800).

[0078] Thereafter, as shown in FIG. 2, an adhesive layer (400) can be placed on the light-shielding layer (800) and the sealing layer (300).

[0079] Next, as shown in FIG. 5 and FIG. 2, a protective substrate (500) can be placed on the adhesive layer (400).

[0080] Next, as shown in FIG. 6 and FIG. 2, a polarizing plate (600) can be placed on the protective substrate (500).

[0081] FIG. 7 is a schematic cross-sectional view of a display device according to one embodiment, and FIG. 7 may be another cross-sectional view taken along line I-I' of FIG. 1.

[0082] The display device of FIG. 7 is different from the display device of FIG. 2 described above in that it further includes a touch sensing unit (900). This difference will be specifically described as follows.

[0083] As illustrated in FIG. 7, the touch sensing unit (900) may be disposed on the encapsulating layer (300). For example, the touch sensing unit (900) may be disposed between the encapsulating layer (300) and the adhesive layer (400) in the display area (DA) of the base substrate (100), and may be disposed between the edge of the encapsulating layer (300) and the light-shielding layer (800) in the non-display area (NDA) of the base substrate (100).

[0084] The touch sensing unit (900) can be in contact (or in direct contact) with the sealing layer (300), the light-shielding layer (800), and the adhesive layer (400). Here, the interface between the touch sensing unit (900) and the light-shielding layer (800) can have a round shape.

[0085] The touch sensing unit (900) may include a plurality of touch electrodes for detecting a user's touch using a capacitive method, and touch lines connecting the plurality of touch electrodes and a touch driving unit. For example, the touch sensing unit (900) may sense a user's touch using a mutual capacitance method or a self-capacitance method.

[0086] For another example, the touch sensing unit (900) may be placed on a separate substrate placed on the display area (DA) of the display device. In this case, the substrate supporting the touch sensing unit (900) may be a base member that encapsulates the display area (DA).

[0087] A plurality of touch electrodes of the touch sensing unit (900) may be arranged in a touch sensor area overlapping a display area (DA) of the display device. The touch lines of the touch sensing unit (900) may be arranged in a touch peripheral area overlapping a non-display area (NDA) of the display device.

[0088] FIG. 8 is a schematic cross-sectional view of a display device according to one embodiment, and FIG. 8 may be another cross-sectional view taken along line I-I' of FIG. 1.

[0089] The display device of FIG. 8 is different from the display device of FIG. 7 described above in that it further includes a first flattening layer (910). This difference will be specifically described as follows.

[0090] As illustrated in FIG. 8, the first flattening layer (910) can be placed between the sealing layer (300) and the touch sensing unit (900).

[0091] The first planarization layer (910) is intended to enable the touch electrodes and touch lines of the touch sensing unit (900) to be placed on a planarized surface in the display area (DA) of the base substrate (100), and the first planarization layer (910) may be made of a material including at least one of an organic film and an inorganic film.

[0092] FIG. 9 is a schematic cross-sectional view of a display device according to one embodiment, and FIG. 9 may be another cross-sectional view taken along line I-I' of FIG. 1.

[0093] The display device of FIG. 9 is different from the display device of FIG. 7 described above in that it further includes a second flattening layer (920). This difference will be specifically described as follows.

[0094] As illustrated in FIG. 9, the second planarization layer (920) may be disposed on the touch sensing unit (900). For example, the second planarization layer (920) may be disposed between the touch sensing unit (900) and the adhesive layer (400) in the display area (DA) of the base substrate (100), and may be disposed between the edge of the touch sensing unit (900) and the light-shielding layer (800) in the non-display area (NDA) of the base substrate (100).

[0095] The second flattening layer (920) may be in contact (or in direct contact) with the touch sensing unit, the light-shielding layer (800), and the adhesive layer (400). Here, the interface between the second flattening layer (920) and the light-shielding layer (800) may have a round shape.

[0096] The second flattening layer (920) is intended to enable the adhesive layer (400) to be placed on the flattened surface, and the second flattening layer (920) may be made of a material including at least one of an organic film and an inorganic film.

[0097] Meanwhile, according to one embodiment, the display device may include both the first planarization layer (910) and the second planarization layer (920) described above.

[0098] FIG. 10 is a schematic cross-sectional view of a display device according to one embodiment, and FIG. 10 may be another cross-sectional view taken along line I-I' of FIG. 1.

[0099] The display device of FIG. 10 has a difference from the display device of FIG. 2 described above in the position of the light-blocking layer (820), and this difference will be described in detail as follows.

[0100] As illustrated in FIG. 10, the light-blocking layer (820) may be disposed on the protective substrate (500). For example, the light-blocking layer (820) may be disposed on the protective substrate (500) in the non-display area (NDA). In other words, in the non-display area (NDA), the light-blocking layer (820) may be disposed directly on the protective substrate (500). According to one embodiment, in the non-display area (NDA), the light-blocking layer (820) may be disposed on the protective substrate (500) so as to surround the edge of the encapsulation layer (300).

[0101] From a planar perspective, the light-shielding layer (820) may have a closed curve shape (e.g., a square ring shape) surrounding the polarizing plate (600). The light-shielding layer (820) may contact (or directly contact) the upper surface of the protective substrate (500) and the side surface of the polarizing plate (600). At this time, the thickness of the light-shielding layer (820) may be smaller than the thickness of the polarizing plate (600). Here, the thickness of the light-shielding layer (820; or polarizing plate (600)) may mean the size in the third direction (DR3).

[0102] Meanwhile, according to one embodiment, a shading layer (820) may be placed on a protective substrate (500) to surround the edge of the sealing layer (300).

[0103] FIG. 11 is a schematic cross-sectional view of a display device according to one embodiment, and FIG. 11 may be another cross-sectional view taken along line I-I' of FIG. 1.

[0104] The display device of FIG. 11 differs from the display device of FIG. 10 described above in that it includes two light-blocking layers (800). This difference will be specifically described as follows.

[0105] As illustrated in FIG. 11, one light-shielding layer (800; hereinafter, the first light-shielding layer (800)) may be disposed on the sealing layer (300), and another light-shielding layer (820; hereinafter, the second light-shielding layer (820)) may be disposed on the protective substrate (500). In other words, the first light-shielding layer (800) may be the same as the light-shielding layer (800) of FIGS. 1 and 2 described above, and the second light-shielding layer (820) may be the same as the light-shielding layer (820) of FIG. 10 described above. Therefore, a specific description of the first light-shielding layer (800) refers to the description related to the light-shielding layer (800) of FIGS. 1 and 2 described above, and a specific description of the second light-shielding layer (820) refers to the description related to the light-shielding layer (820) of FIG. 10 described above.

[0106] FIG. 12 is a schematic cross-sectional view of a display device according to one embodiment, and FIG. 12 may be another cross-sectional view taken along line I-I' of FIG. 1.

[0107] The display device of FIG. 12 is different from the display device of FIG. 2 described above in that it further includes a dam (350). This difference will be specifically described as follows.

[0108] As illustrated in FIG. 12, at least one dam (350) may be placed in the non-display area (NDA) of the base substrate (100). From a planar perspective, the dam (350) may have a closed curve shape surrounding the display area (DA).

[0109] The encapsulation layer (300) can be placed on the display elements (200) and the dam (350).

[0110] Meanwhile, according to one embodiment, as illustrated in FIG. 12, the dam (350) may be placed on the non-display area (NDA) of the base substrate (100) so as to overlap with the light-shielding layer (800) in the non-display area (NDA).

[0111] The dam (350) can block the material of the encapsulating layer (300) from penetrating into the pad area (PDA) of the base substrate (100) during the process of forming the encapsulating layer (300). For example, the encapsulating layer (300) can include a first inorganic film, an organic film, and a second inorganic film sequentially laminated along a third direction (DR1) on the base substrate (100), and the dam (350) described above can block the raw material (e.g., monomer) of the organic film applied on the base substrate (100) from penetrating into the pad area (PDA).

[0112] Those skilled in the art will appreciate that the present disclosure may be implemented in other specific forms without altering the technical spirit or essential characteristics thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of this disclosure is defined by the claims set forth below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of this disclosure.

[0113] Meanwhile, this specification and drawings disclose preferred embodiments of this specification, and although specific terms are used, they are used only in a general sense to easily explain the technical contents of this specification and help understand the invention, and are not intended to limit the scope of this specification. It will be apparent to those skilled in the art to which this specification pertains that other modified examples based on the technical ideas of this specification are possible in addition to the embodiments disclosed herein.

Claims

1. Base board; In the above display area, a display element disposed on the base substrate; A sealing layer on the above display element; and A display device including a light-blocking layer disposed on the sealing layer in the non-display area.

2. In paragraph 1, A display device in which the above-mentioned light-shielding layer is arranged along an edge of the upper surface of the base substrate and an edge of the upper surface of the encapsulating layer.

3. In paragraph 1, A display device in which, from a planar perspective, the light-shielding layer surrounds at least one of the sealing layer, the display element, and the display area of ​​the base substrate.

4. In paragraph 3, A display device in which, from a planar perspective, the light-shielding layer has a shape of a closed curve surrounding at least one of the sealing layer, the display element, and the display area of ​​the base substrate.

5. In paragraph 1, A display device in which the light-blocking layer is positioned directly above the sealing layer in the non-display area of ​​the base substrate.

6. In paragraph 5, A display device in which, in a non-display area of ​​the base substrate, the light-blocking layer is in contact with the sealing layer.

7. In paragraph 6, A display device wherein the interface between the above-mentioned shielding layer and the above-mentioned sealing layer has a round shape.

8. In paragraph 1, A display device further comprising an adhesive layer on the sealing layer and the light-shielding layer.

9. In paragraph 8, A display device further comprising a touch sensing unit disposed between the sealing layer and the adhesive layer, and disposed between the sealing layer and the light-shielding layer.

10. In paragraph 9, The above-mentioned light-shielding layer is a display device in contact with the above-mentioned touch sensing unit.

11. In paragraph 9, A display device further comprising a first planarizing layer between the sealing layer and the touch sensing portion.

12. In paragraph 9, A display device further comprising a second planarizing layer disposed between the touch sensing unit and the adhesive layer, and disposed between the touch sensing unit and the light-shielding layer.

13. In paragraph 8, A display device further comprising a protective substrate on the adhesive layer.

14. In paragraph 13, A display device further comprising a polarizing plate on the above protective substrate.

15. In paragraph 14, A display device in which the above-mentioned light-blocking layer is arranged on the above-mentioned protective substrate so as to overlap with the edge of the above-mentioned sealing layer.

16. In paragraph 15, A display device in which the above-mentioned light-shielding layer is positioned directly on the above-mentioned protective substrate.

17. In paragraph 15, In a planar view, the light-blocking layer is a display device surrounding the polarizing plate.

18. In paragraph 15, The above light-shielding layer is, A first shading layer disposed directly above the above encapsulating layer; and A display device comprising a second light-blocking layer positioned directly above the protective substrate so as to overlap the encapsulating layer.

19. In paragraph 1, A display device further comprising a dam disposed on the base substrate so as to overlap the light-blocking layer in a non-display area of ​​the base substrate.

20. In paragraph 19, A display device in which a portion of the above encapsulation layer is disposed between the dam and the light-shielding layer.

21. In paragraph 1, A display device wherein the above-mentioned light-shielding layer comprises a black pigment or an organic black pigment.

22. In paragraph 1, The above-mentioned light-shielding layer is a display device having a square ring shape with four sides.

23. In paragraph 22, The above four variables are, A first side adjacent to a pad area of ​​the base substrate; A second side arranged to face the first side; A third side connected to one end of the first side and one end of the second side; A display device including a fourth side arranged to face the third side and connected to the other end of the first side and the other end of the second side.

24. In paragraph 23, The width of the first side and the width of the second side are the same, A display device in which the widths of the third side and the third side are different.

25. A step of arranging a display element on a display area of ​​a base substrate; A step of placing a sealing layer on the above display element; and A method for manufacturing a display device, comprising the step of disposing a light-blocking layer on the sealing layer in a non-display area of ​​the base substrate.

26. In paragraph 25, A method for manufacturing a display device, wherein the light-blocking layer is arranged along an edge of an upper surface of the base substrate and an edge of an upper surface of the sealing layer.

27. In paragraph 25, A method for manufacturing a display device, wherein, from a planar perspective, the light-blocking layer surrounds at least one of the sealing layer, the display element, and the display area of ​​the base substrate.

28. In paragraph 27, A method for manufacturing a display device, wherein, in a planar view, the light-shielding layer has a closed curve shape surrounding at least one of the sealing layer, the display element, and the display area of ​​the base substrate.

29. In paragraph 25, A method for manufacturing a display device, wherein the light-blocking layer is positioned directly above the sealing layer in a non-display area of ​​the base substrate.

30. In paragraph 29, A method for manufacturing a display device, wherein in a non-display area of ​​the base substrate, the light-blocking layer is in contact with the sealing layer.

31. In paragraph 30, A method for manufacturing a display device, wherein the interface between the above-mentioned light-shielding layer and the above-mentioned sealing layer has a round shape.

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