Display device, method for manufacturing display device, and electronic apparatus

Abstract

The present invention relates to a display device. Disclosed is a display device comprising: an island portion on which a light-emitting diode is disposed; and a bridge portion connecting the island portion to another adjacent island portion, wherein the island portion includes a base layer connected to the bridge portion, and a pixel layer disposed on the base layer and overlapping the base layer and at least a part of the bridge portion.

Description

Display device, method of manufacturing a display device, and electronic device

[0001] The present invention relates to embodiments of a device and a method, and more specifically to a display device, a method for manufacturing a display device, and an electronic device including a display device.

[0002] Recently, electronic devices are being widely used. Electronic devices are utilized in various forms, such as mobile and stationary devices, and these devices include display devices capable of providing visual information, such as images or videos, to users in order to support various functions.

[0003] As display devices that visually display electrical signals advance, various display devices with excellent characteristics such as thinness, lightness, and low power consumption are being introduced. For example, flexible display devices that can be folded or rolled into a roll shape are being introduced. Recently, research and development on display devices of various structures, such as stretchable display devices that can change into various shapes, is actively underway.

[0004] The aforementioned background technology is technical information that the inventor possessed for the derivation of the present invention or acquired during the process of deriving the present invention, and it cannot be considered as publicly known technology disclosed to the general public prior to the filing of the present invention.

[0005] Embodiments of the present invention can provide a display device and electronic device having high resolution and easy stretching, such as a flexible display device and electronic device, and a method for manufacturing a display device.

[0006] However, these problems are exemplary, and the problems to be solved by the present invention are not limited thereto.

[0007] According to one aspect of the present invention, a display device is disclosed comprising: an island portion on which a light-emitting diode is disposed; and a bridge portion connecting the island portion to another adjacent island portion; wherein the island portion comprises: a base layer connected to the bridge portion; and a pixel layer disposed on the base layer and overlapping with at least a portion of the base layer and the bridge portion.

[0008] In one embodiment, the lower surface of the pixel layer is connected to the upper surface of the base layer and may be spaced apart from the upper surface of the bridge portion.

[0009] In one embodiment, an elastic member may be filled in the space between the lower surface of the pixel layer and the upper surface of the bridge portion.

[0010] In one embodiment, a light-emitting element and a pixel driving circuit portion electrically connected to the light-emitting element to drive the light-emitting element may be disposed in the pixel layer.

[0011] In one embodiment, the pixel driving circuit may be electrically connected to the wirings arranged in the bridge portion through a contact hole provided in the base layer.

[0012] In one embodiment, one side of the pixel layer and one side of the base layer corresponding to one side of the pixel layer may have an oblique slope relative to each other.

[0013] In one embodiment, the pixel layers are provided in a plurality, and the plurality of pixel layers are arranged parallel to each other along a first direction, and one side of each of the plurality of pixel layers may be parallel to the first direction.

[0014] In one embodiment, one side of the base layer may have an oblique slope with respect to the first direction.

[0015] In one embodiment, the size of the pixel layer on the planar view may be larger than the size of the base layer.

[0016] In one embodiment, the height of the base layer may be greater than the height of the bridge portion.

[0017] In one embodiment, the base layer may include a substrate and an insulating layer disposed on the substrate.

[0018] According to one aspect of the present invention, a method for manufacturing a display device is disclosed, comprising: a step of arranging a base layer and a bridge portion connected to the base layer; a step of depositing a sacrificial layer in an area excluding the upper surface of the base layer; a step of arranging a pixel layer on the upper surface of the base layer and the upper surface of the sacrificial layer; and a step of removing the sacrificial layer.

[0019] In one embodiment, the step of arranging the pixel layer may include the step of arranging it to overlap with at least a part of the base layer and the bridge portion.

[0020] In one embodiment, the step of removing the sacrificial layer may include a step of separating the lower surface of the pixel layer from the upper surface of the bridge portion.

[0021] In one embodiment, a light-emitting element and a pixel driving circuit portion electrically connected to the light-emitting element to drive the light-emitting element may be disposed in the pixel layer.

[0022] In one embodiment, the step of arranging the pixel layer may include the step of electrically connecting the pixel driving circuit to the wiring arranged in the bridge portion through a contact hole provided in the base layer.

[0023] In one embodiment, the step of arranging the pixel layer may include the step of arranging the pixel layer such that one side of the pixel layer and one side of the base layer corresponding to the one side of the pixel layer are inclined obliquely to each other.

[0024] In one embodiment, the pixel layers are provided in a plurality, the plurality of pixel layers are arranged parallel to each other along a first direction, and one side of each of the plurality of pixel layers may be arranged parallel to the first direction.

[0025] In one embodiment, one side of the base layer may be arranged to have an oblique slope with respect to the first direction.

[0026] According to one aspect of the present invention, an electronic device is disclosed comprising: a display device for displaying an image; and a housing for housing the display device, wherein the display device comprises: an island portion on which a light-emitting diode is disposed; and a bridge portion connecting the island portion to an adjacent island portion; wherein the island portion comprises: a base layer connected to the bridge portion; and a pixel layer disposed on the base layer and overlapping with at least a portion of the base layer and the bridge portion.

[0027] Other aspects, features, and advantages other than those described above will become clear from the following specific details, claims, and drawings for implementing the invention.

[0028] According to embodiments of the present invention, a display device and an electronic device capable of being stretchable in various directions, and a method for manufacturing a display device can be provided. In addition, the display device can achieve high resolution by increasing the area in which a pixel circuit driver and a light-emitting element can be arranged in the display area.

[0029] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0030] FIG. 1 is a schematic perspective view of a display device according to one embodiment of the present invention.

[0031] FIGS. 2a and FIGS. 2b are perspective views showing the display device of FIG. 1 extended in a first direction.

[0032] FIG. 2c is a perspective view showing the display device of FIG. 1 extended in a second direction.

[0033] FIG. 2d is a perspective view showing the display device of FIG. 1 extended in the first direction and the second direction.

[0034] FIG. 2e is a perspective view showing the display device of FIG. 1 extended in a third direction.

[0035] FIG. 3 is a schematic plan view of a display device according to one embodiment of the present invention.

[0036] FIG. 4 is a plan view of part IV of FIG. 3 as a part of a display device according to one embodiment of the present invention.

[0037] FIG. 5 is a schematic cross-sectional view showing an island portion and a bridge portion arranged in a display area of ​​a display device according to one embodiment of the present invention, which may correspond to a cross-section taken along the VV' line of FIG. 4.

[0038] FIG. 6 is a schematic perspective view showing an island section and a bridge section according to one embodiment of the present invention.

[0039] FIGS. 7a to 7c are equivalent circuit diagrams of subpixels of a display device according to one embodiment of the present invention.

[0040] FIG. 8a is a cross-sectional view schematically showing a light-emitting element of a display device according to one embodiment of the present invention.

[0041] FIG. 8b is a cross-sectional view schematically showing a light-emitting element of a display device according to one embodiment of the present invention.

[0042] FIGS. 9a to 9d are schematic drawings illustrating a method for manufacturing a display device according to an embodiment of the present invention.

[0043] FIG. 10a is a schematic perspective view of an electronic device including a display device according to one embodiment of the present invention.

[0044] FIG. 10b is a block diagram schematically showing an electronic device including a display device according to one embodiment of the present invention.

[0045] FIGS. 11a to 11i are schematic perspective views illustrating embodiments of an electronic device including a display device according to one embodiment of the present invention.

[0046] The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms.

[0047] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0048] In the following examples, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component.

[0049] In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0050] In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added.

[0051] In the following embodiments, when a part such as a film, region, or component is described as being on or above another part, it includes not only cases where it is directly on top of another part, but also cases where another film, region, or component is interposed in between.

[0052] In the following embodiments, when membranes, regions, components, etc. are described as being connected, this includes cases where the membranes, regions, components are directly connected and / or cases where other membranes, regions, components are interposed between them to be indirectly connected. Additionally, when membranes, regions, components, etc. are described as being electrically connected, this includes cases where the membranes, regions, components, etc. are directly electrically connected and / or cases where other membranes, regions, components, etc. are interposed between them to be indirectly electrically connected.

[0053] In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated.

[0054] In the following embodiments, "A and / or B" indicates the case where it is A, B, or both A and B. Additionally, "at least one of A and B" indicates the case where it is A, B, or both A and B.

[0055] In the following embodiments, the meaning of "the wiring extends in a first direction or a second direction" includes not only extending in a straight line shape, but also extending in a zigzag or curved shape along the first direction or the second direction.

[0056] In the following embodiments, "planar" means when the target part is viewed from above. In the following embodiments, "cross-sectional" means when the cross-section obtained by vertically cutting the target part is viewed from the side. In the following embodiments, "overlapping" of the first component with the second component means that the first component is located above or below the second component.

[0057] In the following embodiments, the x-axis, y-axis, and z-axis are not limited to three axes in an orthogonal coordinate system and can be interpreted in a broader sense that includes them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but they may also refer to different directions that are not orthogonal to each other.

[0058] Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description.

[0059] FIG. 1 is a schematic perspective view of a display device (1) according to an embodiment of the present invention. FIG. 2a and FIG. 2b are perspective views showing the display device (1) of FIG. 1 extended in a first direction. FIG. 2c is a perspective view showing the display device (1) of FIG. 1 extended in a second direction. FIG. 2d is a perspective view showing the display device (1) of FIG. 1 extended in the first direction and the second direction. FIG. 2e is a perspective view showing the display device (1) of FIG. 1 extended in a third direction.

[0060] Referring to FIG. 1, a display device (1) may include a display area (DA) and a non-display area (NDA). The display area (DA) may include a plurality of pixels. The display device (1) may provide a predetermined image using light emitted from a plurality of pixels. The non-display area (NDA) may be placed outside the display area (DA). The non-display area (NDA) is an area where pixels are not placed and may completely surround the display area (DA).

[0061] The display device (1) can be extended or shortened in various directions. The display device (1) can be extended in a first direction (e.g., x direction and / or -x direction) by an external force applied by an external object or a user. In one embodiment, as shown in FIGS. 2a and 2b, the display area (DA) and / or non-display area (NDA) of the display device (1) can be extended in a first direction (e.g., x direction and / or -x direction). For example, as shown in FIG. 2a, it can be extended along the x direction and -x direction, or as shown in FIG. 2b, it can be extended along the x direction while one side of the display device (1) remains fixed.

[0062] The display device (1) can be extended in a second direction (e.g., the y direction and / or the -y direction) by an external force applied by an external object or a user. In one embodiment, as shown in FIG. 2c, the display area (DA) and / or non-display area (NDA) of the display device (1) can be extended in the y direction and the -y direction. In another embodiment, one side of the display device (1) can be extended in the y direction or the -y direction while remaining fixed.

[0063] The display device (1) can be extended in multiple directions, such as a first direction (e.g., x direction and / or -x direction) and a second direction (e.g., y direction and / or -y direction) by an external force applied by an external object or a part of a person's body. As shown in FIG. 2d, the display area (DA) and / or non-display area (NDA) of the display device (1) can be extended in the ±x direction and ±y direction.

[0064] The display device (1) can be extended in a third direction (e.g., z direction or -z direction) by an external force applied by an external object or a part of a person's body. In one embodiment, FIG. 2e shows a part of the display device (1), such as a part of the display area (DA), protruding in the z direction. In another embodiment, a part of the display device (1), such as a part of the display area (DA), can be protruded along the -z direction (or sunken along the z direction).

[0065] FIGS. 2a to 2e illustrate a display device (1) extended in a first direction, a second direction, and / or a third direction, but the present invention is not limited thereto. In other embodiments, the display device (1) may be varied into an irregular shape, such as having two or more axes, being bent or twisted.

[0066] FIG. 3 is a schematic plan view of a display device (1) according to one embodiment of the present invention.

[0067] A plurality of pixels may be arranged in the display area (DA) of the display device (1). Each pixel may include subpixels that emit light of different colors. A light-emitting element corresponding to each subpixel may be placed in the display area (DA). A circuit for providing electrical signals to the light-emitting elements placed in the display area (DA) and to the transistors electrically connected to the light-emitting elements may be located in the non-display area (NDA) surrounding the display area (DA). A gate driving circuit (GDC) may be placed in the first non-display area (NDA1) and the second non-display area (NDA2), respectively, which are placed on both sides of the display area (DA). The gate driving circuit (GDC) may include drivers for providing electrical signals to the gate electrodes of each of the transistors electrically connected to the light-emitting elements. FIG. 3 illustrates the placement of a gate driving circuit (GDC) in the first non-display area (NDA1) and the second non-display area (NDA2), respectively, but the present invention is not limited thereto. In another embodiment, the gate driving circuit (GDC) may be placed in either the first non-display area (NDA1) or the second non-display area (NDA2).

[0068] The data driving circuit (DDC) may be placed in a third non-display area (NDA3) and / or a fourth non-display area (NDA4) connecting the first non-display area (NDA1) and the second non-display area (NDA2). In one embodiment, FIG. 3 illustrates the data driving circuit (DDC) being placed in the fourth non-display area (NDA4). In another embodiment, the data driving circuit (DDC) may be placed in each of the third non-display area (NDA3) and the fourth non-display area (NDA4).

[0069] FIG. 3 illustrates a data driving circuit (DDC) placed in the fourth non-display area (NDA4) of a display device (1), but the present invention is not limited thereto. In another embodiment, the display device (1) may further include a flexible circuit board (not shown) electrically connected through a terminal portion (not shown) placed in the fourth non-display area (NDA4), and a data driving circuit (DDC) may be placed on the aforementioned flexible circuit board.

[0070] In some embodiments, the elongation of the non-display area (NDA) may be equal to or less than the elongation of the display area (DA). In one embodiment, the elongation of the non-display area (NDA) may differ from area to area. For example, the first non-display area (NDA1), the second non-display area (NDA2), and the third non-display area (NDA3) may have substantially the same elongation, but the elongation of the fourth non-display area (NDA4) may be less than the elongation of each of the first non-display area (NDA1), the second non-display area (NDA2), and the third non-display area (NDA3). In this specification, elongation refers to a numerical value representing the change in length (ΔL / L) by which the display device (1) can be extended without physical damage to the display device (1) when an external force is applied to the display device (1). Here, ΔL is the amount of change in length of the display device, and L represents the initial length of the display device.

[0071] FIG. 4 is a plan view of the IV portion of FIG. 3 as a part of a display device (1) according to one embodiment of the present invention.

[0072] Referring to FIG. 4, the display device (1) may include island portions (11) spaced apart from each other in a first direction (e.g., x direction or -x direction) and a second direction (e.g., y direction or -y direction) in a display area (DA), and bridge portions (12) connecting adjacent island portions (11). The bridge portions (12) may be spaced apart from each other by a first opening (CS1) located between the bridge portions (12).

[0073] In one embodiment, each of the island portions (11) may include a base layer (BL) and a pixel layer (PL) disposed on the base layer (BL). In one embodiment, the base layer (BL) may have a rectangular shape, and the bridge portions (12) may be connected to the base layer (BL). Additionally, the pixel layer (PL) may also have a rectangular shape and may be located on top of the base layer (BL).

[0074] In one embodiment, at least one of the sides of the base layer (BL) may be oblique to a virtual line connecting the centers (C) of the island portions (11) along a first direction (e.g., x direction or -x direction) and / or a second direction (e.g., y direction or -y direction). In this regard, FIG. 4 illustrates that the base layer (BL) comprises first to fourth sides (BLa, BLb, BLc, BLd), each of which extends along a direction oblique to a first virtual line (IM1) connecting the centers (C) of the island portions (11). In this case, the center (C) of the island portion (11) may refer to the center of the base layer (BL). FIG. 4 illustrates that the first virtual line (IM1) is extended in a first direction (e.g., x direction or -x direction), but the first virtual line (IM1) may be extended along a second direction (e.g., y direction or -y direction).

[0075] In one embodiment, the second side (BLb) and the fourth side (BLd), which are parallel to each other, may intersect the first imaginary line (IM1). The smaller angle (hereinafter referred to as the angle of intersection, T) formed by the second side (BLb) and the first imaginary line (IM1) may be greater than 0 degrees and less than 90 degrees. The angle of intersection (T) formed by the fourth side (BLd) and the first imaginary line (IM1) may be greater than 0 degrees and less than 90 degrees.

[0076] An island section (11), for example, a base layer (BL), can be connected to a plurality of bridge sections (12). For example, the base layer (BL) can be connected to four bridge sections (12). Two bridge sections (12) may be placed on both sides of the base layer (BL) along a first direction (e.g., x direction or -x direction), and the remaining two bridge sections (12) may be placed on both sides of the base layer (BL) along a second direction (e.g., y direction or -y direction).

[0077] The bridge portion (12) may have a wavy shape. For example, as shown in FIG. 4, the bridge portion (12) may have a shape of approximately the letter 'S', such as including two rounded portions (12R) and a straight portion (12S) between the two rounded portions (12R).

[0078] In one embodiment, the straight section (12S) may be substantially parallel to the sides of the adjacent base layer (BL) as illustrated in FIG. 4. For example, the straight section (12S) of each bridge section (12) located on both sides of the base layer (BL) along the first direction (e.g., x direction or -x direction) may be substantially parallel to the sides of the base layer (BL) (e.g., second side (BLb) and fourth side (BLd)). The straight section (12S) of each bridge section (12) located on both sides of the base layer (BL) along the second direction (e.g., y direction or -y direction) may be substantially parallel to the sides of the base layer (BL) (e.g., first side (BLa) and third side (BLc)).

[0079] Each of the base layers (BL) illustrated in FIG. 4 can be understood as having rotated by a first angle (e.g., acute angle) with respect to the center (C) compared to the case where the first side (BLa) is arranged parallel to the first direction (e.g., x direction or -x direction). Accordingly, at least one of the sides of the base layers (BL) may be oblique with respect to a virtual line connecting the center (C) of the base layers (BL) along the first direction (e.g., x direction or -x direction) and / or the second direction (e.g., y direction or -y direction). According to the arrangement of the base layer (BL) and / or the structure of the bridge portion (12) as described above, the area of ​​the first opening (CS1) shown in FIG. 4 may be relatively smaller than when the base layer (BL) is arranged such that the first side (BLa) is parallel to the first direction, and thus the display device (1) according to the embodiment shown in FIG. 4 can provide a relatively high-resolution image.

[0080] However, the present invention is not limited thereto, and in other embodiments, base layers (BL) are arranged such that a first side (BLa) is parallel to a first direction, and a plurality of base layers (BL) may be arranged in parallel along a first virtual line (IM1) in the first direction.

[0081] FIG. 4 illustrates that the straight section (12S) of the bridge section (12) is substantially parallel to the side of the base layer (BL) adjacent to the straight section (12S), but the present invention is not limited thereto. In another embodiment, the straight section (12S) of the bridge section (12) may be oblique to the side of the base layer (BL) adjacent to the straight section (12S).

[0082] In one embodiment, the structure of the first non-display area (NDA1, FIG. 3) of the display device (1) not disclosed in FIG. 4 may be identical to the structure of the display area (DA) disclosed in FIG. 4. In one embodiment, the structure of the first non-display area (NDA1, FIG. 3) of the display device (1) not disclosed in FIG. 4 is substantially identical to the structure of the display area (DA) disclosed in FIG. 4, but the area of ​​the island portion placed in the first non-display area (NDA1, FIG. 3) may be larger than the area of ​​the island portion (11) placed in the display area (DA).

[0083] FIG. 5 is a schematic cross-sectional view showing an island portion (11) and a bridge portion (12) arranged in a display area (DA) of a display device (1) according to an embodiment of the present invention. FIG. 5 may correspond to a cross-section taken along the VV' line of FIG. 4. FIG. 6 is a schematic perspective view showing an island portion (11) and a bridge portion (12) according to an embodiment of the present invention.

[0084] Referring to FIGS. 4 through 6, in one embodiment, the island portion (11) may include a base layer (BL) and a pixel layer (PL) disposed on the base layer (BL). The base layer (BL) may be spaced apart from the bridge portion (12) with a first opening (CS1) in between. Of course, the bridge portion (12) may be connected to each side of the base layer (BL). The pixel layer (PL) may include light-emitting elements (LEDs) and a circuit for driving the light-emitting elements, such as a pixel driving circuit portion (PC), which is electrically connected to the light-emitting elements (LEDs). The bridge portion (12) may include a wiring (WL) electrically connected to the pixel driving circuit portion (PC) disposed on the pixel layer (PL).

[0085] The base layer (BL) may include a substrate (100) and an insulating layer (IL). The substrate (100) may include a polymer resin such as polyethersulfone, polyarylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyimide, polycarbonate, cellulose triacetate, and cellulose acetate propionate. In one embodiment, the substrate (100) may be a single layer including the aforementioned polymer resin. In another embodiment, the substrate (100) may be a multilayer structure including a base layer including the aforementioned polymer resin and a barrier layer including an inorganic insulating material. The substrate (100) including the polymer resin may have flexible, rollable, and bendable properties.

[0086] An insulating layer (IL) may be disposed on the substrate (100). In one embodiment, the insulating layer (IL) may include an organic insulating material. Since the base layer (BL) undergoes relatively significant deformation when the display device (1) is stretched together with the bridge portion (12), there may not be a layer containing an inorganic insulating material that is prone to cracking.

[0087] A pixel layer (PL) may be disposed on top of a base layer (BL). In one embodiment, the pixel layer (PL) may include a buffer layer (111), a pixel driving circuit (PC) disposed on the buffer layer (111), and a light-emitting element (LED) electrically connected to the pixel driving circuit (PC).

[0088] The buffer layer (111) may include an inorganic insulating material, and a pixel insulating layer (PIL) including an inorganic insulating material and / or an organic insulating material may be disposed between the pixel driving circuit (PC) and the light-emitting element (LED). The light-emitting element (LED) is disposed on the pixel insulating layer (PIL) and may be covered by an encapsulation layer (300). The light-emitting elements (LEDs) may emit light of different colors or light of the same color. In one embodiment, the light-emitting elements (LEDs) may each emit red, green, and blue light. In some embodiments, the light-emitting elements (LEDs) may emit white light. In another embodiment, the light-emitting elements (LEDs) may each emit red, green, blue, and white light.

[0089] In one embodiment, FIG. 5 illustrates three pixel driving circuit units (PCs) arranged in each island unit (11) and three light-emitting elements (LEDs) connected to each pixel driving circuit unit (PC), but the present invention is not limited thereto. In another embodiment, the number of pixel driving circuit units (PCs) and light-emitting elements (LEDs) arranged in the island unit (11) may be one, two, or four or more.

[0090] The encapsulation layer (300) may be placed on a light-emitting element (LED) and may protect the light-emitting element (LED) from external forces and / or moisture penetration. The encapsulation layer (300) may include an inorganic encapsulation layer and / or an organic encapsulation layer. In some embodiments, the encapsulation layer (300) may include a structure in which an inorganic encapsulation layer containing an inorganic insulating material, an organic encapsulation layer containing an organic insulating material, and an inorganic encapsulation layer containing an inorganic insulating material are laminated. In other embodiments, the encapsulation layer (300) may include an organic material such as resin. In some embodiments, the encapsulation layer (300) may include urethane epoxy acrylate. The encapsulation layer (300) may include a photosensitive material, such as a photoresist.

[0091] Looking at the bridge portion (12), an insulating layer (IL) containing an organic insulating material may be disposed on the substrate (100). When the display device (1) is stretched, the bridge portion (12), which undergoes relatively more deformation, may not have a layer containing an inorganic insulating material that is prone to cracking.

[0092] In one embodiment, the substrate (100) corresponding to the bridge portion (12) may have the same stacked structure as the substrate (100) corresponding to the island portion (11). In one embodiment, the substrate (100) corresponding to the bridge portion (12) and the substrate (100) corresponding to the island portion (11) may be polymer resin layers formed together in the same process. In another embodiment, the substrate (100) corresponding to the bridge portion (12) may have a different stacked structure than the substrate (100) corresponding to the island portion (11). In some embodiments, the substrate (100) corresponding to the island portion (11) may have a multilayer structure including a base layer containing a polymer resin and a barrier layer containing an inorganic insulating material, and the substrate (100) corresponding to the bridge portion (12) may have a structure of a polymer resin layer without a layer containing an inorganic insulating material.

[0093] As previously described, the wiring (WL) of the bridge section (12) may be signal lines (e.g., gate lines, data lines, etc.) for providing an electrical signal to a transistor included in the pixel driving circuit section (PC) of the island section (11), or voltage lines (e.g., driving voltage lines, initialization voltage lines, etc.) for providing a voltage. An encapsulation layer (300) may also be disposed in the bridge section (12). In another embodiment, the encapsulation layer (300) may not exist in the bridge section (12).

[0094] Referring to FIGS. 4 through 6, the substrate (100) corresponding to the island portion (11) and the substrate (100) corresponding to the bridge portion (12) can be connected to each other. In other words, the plan view shown in FIG. 4 above may be substantially the same as the plan view of the substrate (100) in FIG. 5. In other words, the substrate (100) may include an area corresponding to the island portion (11), for example, the base layer (BL), an area corresponding to the bridge portion (12), and an opening (100OP1) having the same shape as the first opening (CS1).

[0095] The pixel layer (PL) can be arranged to be connected to the upper surface of the base layer (BL). In one embodiment, the base layer (BL) and the pixel layer (PL) may be provided in a rectangular shape, for example, approximately a square. Of course, in other embodiments, the base layer (BL) and the pixel layer (PL) may each be provided in a different polygonal shape, a circle, etc. Furthermore, it is possible for the base layer (BL) to be provided in a different polygonal shape or a circle, and for the pixel layer (PL) to be provided in a rectangular shape. For convenience of explanation, the following description will focus on the case where the base layer (BL) and the pixel layer (PL) are provided in an approximately square shape.

[0096] In this case, the size of the pixel layer (PL) in the plan view may be larger than the size of the base layer (BL). In other words, one side of the pixel layer (PL) in the plan view may be placed between two adjacent base layers (BL). For example, the first side (PLa) of the pixel layer (PL) may be located between the first side (BLa) of the base layer (BL) corresponding to the pixel layer (PL) and the third side (BLc) of the adjacent base layer (BL). In other words, one side of the pixel layer (PL) in the plan view may overlap with a bridge portion (12) connecting the base layer (BL) corresponding to the pixel layer (PL) and another adjacent base layer (BL).

[0097] In one embodiment, base layers (BL) are arranged in parallel in a first direction (e.g., x direction), and pixel layers (PL) placed on top of each base layer (BL) can also be arranged in parallel in the first direction (e.g., x direction). That is, the base layers (BL) are arranged in parallel along a first virtual line (IM1) connecting the center (C) of the island portion (11), and the pixel layers (PL) can also be arranged in parallel along the first virtual line (IM1).

[0098] At this time, one side of the pixel layer (PL), for example, the first side (PLa), and one side of the base layer (BL), for example, the first side (BLa), may be arranged to be inclined obliquely to each other. In other words, the first side (PLa) of the pixel layer (PL) and the first side (BLa) of the base layer (BL) corresponding to the first side (PLa) of the pixel layer (PL) may be arranged to be inclined obliquely to each other. Here, the side of the base layer (BL) corresponding to the first side (PLa) of the pixel layer (PL) may refer to the side of the base layer (BL) closest to the first side (PLa) of the pixel layer (PL). In one embodiment, the angle (θ) between the first side (PLa) of the pixel layer (PL) and the first side (BLa) of the base layer (BL) may be greater than 0 degrees and less than 90 degrees.

[0099] Additionally, the first side (PLa) of the pixel layer (PL) may be positioned parallel to the first virtual line (IM1) in the first direction (e.g., x direction). At this time, the first side (BLa) of the base layer (BL) may be inclined obliquely with respect to the first virtual line (IM1) in the first direction (e.g., x direction). It will be understood that the angle at which the first side (BLa) of the base layer (BL) is inclined with respect to the first virtual line (IM1) may be the same as the aforementioned angle (θ).

[0100] The pixel layer (PL) may be arranged to overlap the entire base layer (BL) and at least a part of the bridge portion (12). The pixel layer (PL) may cover the entire base layer (BL) and at least a part of the bridge portion (12). Additionally, a plurality of pixel layers (PL) may be arranged to have a spacing in a first direction (e.g., x direction).

[0101] Meanwhile, the pixel layer (PL) may be spaced apart from the bridge portion (12). For example, the lower surface of the pixel layer (PL) may be spaced apart from the upper surface of the bridge portion (12) in a third direction (e.g., z-direction). At this time, the height (H1) of the base layer (BL) may be greater than the height (H2) of the bridge portion (12). Accordingly, the pixel layer (PL) connected to the upper part of the base layer (BL) may be spaced apart from the upper surface of the bridge portion (12).

[0102] Although not shown in the drawing, the wiring (WL) placed in the bridge section (12) can be connected to the base layer (BL). Additionally, the pixel driving circuit section (PC) of the pixel layer (PL) can be electrically connected to the wiring (WL) connected to the base layer (BL) through the contact hole of the base layer (BL). At this time, the contact hole of the base layer (BL) for connecting the pixel driving circuit section (PC) and the wiring (WL) can be located adjacent to the part of the base layer (BL) connected to the bridge section (12). That is, on the plan view, the contact hole of the base layer (BL) can be placed adjacent to the vertex of the base layer (BL).

[0103] In this way, as the pixel layer (PL) is positioned above the base layer (BL), it can have a larger size than the base layer (BL) and the spacing between adjacent pixel layers (PL) can also be reduced. Additionally, before the display device (1) is expanded, the base layer (BL) and the bridge portion (12) are located below the pixel layer (PL), and as the display device (1) expands, the spacing between the pixel layers (PL) widens, allowing for a hidden bridge structure in which the bridge portion (12) becomes visible.

[0104] Accordingly, the pixel layer (PL) is provided with a larger area, and the pixel layer (PL) may include a larger number of pixel driving circuits (PC) and light-emitting elements (LEDs) connected to the pixel driving circuits (PC), and high resolution can be achieved.

[0105] Additionally, the base layer (BL) has a smaller size, and accordingly, the bridge portion (12) can be arranged relatively long, and a display device (1) having high elongation can be realized by the base layer (BL) and the bridge portion (12). Circuits, etc., for which elongation is relatively limited (e.g., light-emitting element (LED) and pixel driving circuit portion (PC)) are placed in the pixel layer (PL), thereby becoming relatively independent from elongation, and thus, damage to the circuit can be prevented.

[0106] FIGS. 7a to 7c are equivalent circuit diagrams of subpixels of a display device (1) according to one embodiment of the present invention.

[0107] Referring to FIG. 7a, a light-emitting element (LED) corresponding to a subpixel is electrically connected to a pixel driving circuit (PC), and the pixel driving circuit (PC) may include a first transistor (T1), a second transistor (T2), and a storage capacitor (Cst). The pixel driving circuit (PC) may be electrically connected to a signal line and a voltage line. The signal line may include a gate line such as a first scan line (SL1) and a data line (DL), and the voltage line may include a first voltage line (VDDL).

[0108] The second transistor (T2) can be electrically connected to the first scan line (SL1) and the data line (DL). The first scan line (SL1) can provide a first scan signal (GW) to the gate electrode of the second transistor (T2). The second transistor (T2) can transmit a data signal (Dm) input from the data line (DL) to the first transistor (T1) according to the first scan signal (GW) input from the first scan line (SL1).

[0109] The storage capacitor (Cst) is electrically connected to the second transistor (T2) and the first voltage line (VDDL), and can store a voltage corresponding to the difference between the voltage received from the second transistor (T2) and the first power supply voltage (VDD) supplied by the first voltage line (VDDL).

[0110] The first transistor (T1) is a driving transistor capable of controlling the driving current flowing through the light-emitting element (LED). The first transistor (T1) can be connected to the first voltage line (VDDL) and the storage capacitor (Cst). The first transistor (T1) can control the driving current flowing through the light-emitting element (LED) from the first voltage line (VDDL) in correspondence with the voltage value stored in the storage capacitor (Cst). The light-emitting element (LED) can emit light having a predetermined brightness by the driving current. The first electrode of the light-emitting element (LED) is electrically connected to the first transistor (T1), and the second electrode can be electrically connected to the second voltage line (VSSL) that supplies the second power supply voltage (VSS).

[0111] FIG. 7a illustrates that the pixel driving circuit (PC) includes two transistors and one storage capacitor, but in other embodiments, the pixel driving circuit (PC) may include three or more transistors.

[0112] Referring to FIG. 7b, the pixel driving circuit (PC) may include a first transistor (T1), a second transistor (T2), a third transistor (T3), a fourth transistor (T4), a fifth transistor (T5), a sixth transistor (T6), a seventh transistor (T7), and a storage capacitor (Cst).

[0113] The pixel driving circuit (PC) is electrically connected to signal lines and voltage lines. The signal lines may include gate lines such as a first scan line (SL1), a second scan line (SL2), a third scan line (SL3), and a light emission control line (EML), and data lines (DL). The voltage lines may include first and second initialization voltage lines (VIL1, VIL2) and a first voltage line (VDDL).

[0114] The first voltage line (VDDL) can transmit the first power supply voltage (VDD) to the first transistor (T1). The first initialization voltage line (VIL1) can transmit the first initialization voltage (Vint) that initializes the first transistor (T1) to the pixel driving circuit (PC). The second initialization voltage line (VIL2) can transmit the second initialization voltage (Vaint) that initializes the first electrode of the light-emitting element (LED) to the pixel driving circuit (PC).

[0115] The first transistor (T1) can be electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The first transistor (T1) acts as a driving transistor and receives a data signal (Dm) according to the switching operation of the second transistor (T2) and supplies a driving current to the light-emitting element (LED).

[0116] The second transistor (T2) is a data write transistor and is electrically connected to the first scan line (SL1) and the data line (DL). The second transistor (T2) is electrically connected to the first voltage line (VDDL) via the fifth transistor (T5). The second transistor (T2) is turned on according to the first scan signal (GW) received through the first scan line (SL1) and performs a switching operation to transmit the data signal (Dm) transmitted to the data line (DL) to the first node (N1).

[0117] The third transistor (T3) is electrically connected to the first scan line (SL1) and is electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The third transistor (T3) is turned on according to the first scan signal (GW) received through the first scan line (SL1) and can connect the first transistor (T1) to the diode.

[0118] The fourth transistor (T4) is a first initialization transistor and is electrically connected to the third scan line (SL3) and the first initialization voltage line (VIL1). The fourth transistor (T4) is turned on according to the third scan signal (GI) received through the third scan line (SL3) to transmit the first initialization voltage (Vint) from the first initialization voltage line (VIL1) to the gate electrode of the first transistor (T1), thereby initializing the voltage of the gate electrode of the first transistor (T1). The third scan signal (GI) may correspond to the first scan signal of another pixel driving circuit unit placed in the previous row of the corresponding pixel driving circuit unit (PC).

[0119] The fifth transistor (T5) may be an operation control transistor, and the sixth transistor (T6) may be a light-emitting control transistor. The fifth transistor (T5) and the sixth transistor (T6) are electrically connected to the light-emitting control line (EML) and are simultaneously turned on according to the light-emitting control signal (EM) received through the light-emitting control line (EML) to form a current path so that a driving current can flow from the first voltage line (VDDL) toward the light-emitting element (LED).

[0120] The seventh transistor (T7) is a second initialization transistor and can be electrically connected to the second scan line (SL2), the second initialization voltage line (VIL2), and the sixth transistor (T6). The seventh transistor (T7) is turned on according to the second scan signal (GB) received through the second scan line (SL2), and can initialize the first electrode of the light-emitting element (LED) by transmitting the second initialization voltage (Vaint) from the second initialization voltage line (VIL2) to the first electrode of the light-emitting element (LED).

[0121] The storage capacitor (Cst) includes a first electrode (CE1) and a second electrode (CE2). The first electrode (CE1) is electrically connected to the gate electrode of the first transistor (T1), and the second electrode (CE2) is electrically connected to the first voltage line (VDDL). The storage capacitor (Cst) can maintain the voltage applied to the gate electrode of the first transistor (T1) by storing and maintaining a voltage corresponding to the difference between the voltages of the first voltage line (VDDL) and the gate electrode of the first transistor (T1).

[0122] Referring to FIG. 7c, the pixel driving circuit (PC) may include a first transistor (T1), a second transistor (T2), a third transistor (T3), a fourth transistor (T4), a fifth transistor (T5), a sixth transistor (T6), a seventh transistor (T7), an eighth transistor (T8), a ninth transistor (T9), a storage capacitor (Cst), and an auxiliary capacitor (Ca).

[0123] The pixel driving circuit (PC) is electrically connected to signal lines and voltage lines. The signal lines may include gate lines such as a first scan line (SL1), a second scan line (SL2), a third scan line (SL3), and a light emission control line (EML), and a data line (DL). The voltage lines may include first and second initialization voltage lines (VIL1, VIL2), a holding voltage line (VSL), and a first voltage line (VDDL).

[0124] The first voltage line (VDDL) can transmit the first power supply voltage (VDD) to the first transistor (T1). The first initialization voltage line (VIL1) can transmit the first initialization voltage (Vint) that initializes the first transistor (T1) to the pixel driving circuit (PC). The second initialization voltage line (VIL2) can transmit the second initialization voltage (Vaint) that initializes the first electrode of the light-emitting element (LED) to the pixel driving circuit (PC). The holding voltage line (VSL) can provide the holding voltage (VSUS) to the second electrode (CE2) of the second node (N2), for example, the storage capacitor (Cst), during the initialization section and the data writing section.

[0125] The first transistor (T1) can be electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and the eighth transistor (T8), and can be electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The first transistor (T1) acts as a driving transistor and can receive a data signal (Dm) according to the switching operation of the second transistor (T2) and supply driving current to the light-emitting element (LED).

[0126] The second transistor (T2) is electrically connected to the first scan line (SL1) and the data line (DL), and is electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and the eighth transistor (T8). The second transistor (T2) is turned on according to the first scan signal (GW) received through the first scan line (SL1) and performs a switching operation to transmit the data signal (Dm) transmitted to the data line (DL) to the first node (N1).

[0127] The third transistor (T3) is electrically connected to the first scan line (SL1) and is electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The third transistor (T3) is turned on according to the first scan signal (GW) received through the first scan line (SL1) and connects the first transistor (T1) to the diode, thereby compensating for the threshold voltage of the first transistor (T1).

[0128] The fourth transistor (T4) is electrically connected to the third scan line (SL3) and the first initialization voltage line (VIL1), and is turned on according to the third scan signal (GI) received through the third scan line (SL3) to transmit the first initialization voltage (Vint) from the first initialization voltage line (VIL1) to the gate electrode of the first transistor (T1) to initialize the voltage of the gate electrode of the first transistor (T1). The third scan signal (GI) may correspond to the first scan signal of another pixel driving circuit unit placed in the previous row of the corresponding pixel driving circuit unit (PC).

[0129] The fifth transistor (T5), the sixth transistor (T6), and the eighth transistor (T8) are electrically connected to the light emission control line (EML) and are simultaneously turned on according to the light emission control signal (EM) received through the light emission control line (EML) to form a current path so that driving current can flow from the first voltage line (VDDL) toward the light-emitting element (LED).

[0130] The seventh transistor (T7) is a second initialization transistor and can be electrically connected to the second scan line (SL2), the second initialization voltage line (VIL2), and the sixth transistor (T6). The seventh transistor (T7) is turned on according to the second scan signal (GB) received through the second scan line (SL2) and transmits the second initialization voltage (Vaint) from the second initialization voltage line (VIL2) to the first electrode of the light-emitting element (LED) to initialize the first electrode of the light-emitting element (LED).

[0131] The ninth transistor (T9) can be electrically connected to the second scan line (SL2), the second electrode (CE2) of the storage capacitor (Cst), and the holding voltage line (VSL). The ninth transistor (T9) is turned on according to the second scan signal (GB) received through the second scan line (SL2), and can transmit a holding voltage (VSUS) to the second node (N2), such as the second electrode (CE2) of the storage capacitor (Cst), during the initialization period and the data writing period.

[0132] The eighth transistor (T8) and the ninth transistor (T9) can each be electrically connected to the second node (N2), for example, the second electrode (CE2) of the storage capacitor (Cst). In some embodiments, the eighth transistor (T8) may be turned off and the ninth transistor (T9) may be turned on during the initialization period and the data writing period, and the eighth transistor (T8) may be turned on and the ninth transistor (T9) may be turned off during the light emission period. Since the second node (N2) receives the holding voltage (VSUS) during the initialization period and the data writing period, the uniformity of the brightness of the display device (e.g., LRU, Long Range Uniformity) can be improved even with the voltage drop of the first voltage line (VDDL).

[0133] The storage capacitor (Cst) includes a first electrode (CE1) and a second electrode (CE2). The first electrode (CE1) is electrically connected to the gate electrode of the first transistor (T1), and the second electrode (CE2) is electrically connected to the eighth transistor (T8) and the ninth transistor (T9).

[0134] The auxiliary capacitor (Ca) can be electrically connected to the sixth transistor (T6), the holding voltage line (VSL), and the first electrode of the light-emitting element (LED). By storing and maintaining a voltage corresponding to the voltage difference between the first electrode of the light-emitting element (LED) and the holding voltage line (VSL) while the seventh transistor (T7) and the ninth transistor (T9) are turned on, the auxiliary capacitor (Ca) can prevent the problem of the black brightness rising when the sixth transistor (T6) is turned off.

[0135] FIG. 8a is a cross-sectional view schematically showing a light-emitting element of a display device according to one embodiment of the present invention.

[0136] Referring to FIG. 8a, a light-emitting element (LED) according to one embodiment of the present invention may include an organic light-emitting diode (220) containing an organic material. The organic light-emitting diode (220) may include a first electrode (221) disposed on an insulating layer, a second electrode (225) facing the first electrode (221), and a light-emitting layer (223) interposed between the first electrode (221) and the second electrode (225). A first functional layer (222) may be disposed between the first electrode (221) and the light-emitting layer (223), and a second functional layer (224) may be disposed between the light-emitting layer (223) and the second electrode (225).

[0137] The edge of the first electrode (221) may be covered with a bank layer (BKL) containing an insulating material. The bank layer (BKL) may include an opening (B-OP) that overlaps the central portion of the first electrode (221).

[0138] The first electrode (221) may include a conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or aluminum zinc oxide (AZO). In another embodiment, the first electrode (221) may include a reflective layer comprising silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or a compound thereof. In another embodiment, the first electrode (221) may further include a layer formed of ITO, IZO, ZnO, AZO, or In2O3 above and below the aforementioned reflective layer.

[0139] The light-emitting layer (223) may include a polymer or low-molecular-weight organic material that emits light of a predetermined color. The first functional layer (222) may include a hole transport layer (HTL) and / or a hole injection layer (HIL). The second functional layer (224) may include an electron transport layer (ETL) and / or an electron injection layer (EIL).

[0140] The second electrode (225) may be made of a conductive material with a low work function. For example, the second electrode (225) may include a (semi)transparent layer comprising silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), or alloys thereof. Alternatively, the second electrode (225) may further include a layer such as ITO, IZO, ZnO, AZO, or In2O3 on the (semi)transparent layer comprising the aforementioned materials.

[0141] FIG. 8b is a cross-sectional view schematically showing a light-emitting element of a display device according to one embodiment of the present invention.

[0142] Referring to FIG. 8b, in one embodiment of the present invention, a light-emitting element (LED) may include an inorganic light-emitting diode (230) comprising an inorganic material. The inorganic light-emitting diode (230) may include a first semiconductor layer (231), a second semiconductor layer (232), an intermediate layer (233) between the first semiconductor layer (231) and the second semiconductor layer (232), a first electrode (235) electrically connected to the first semiconductor layer (231), and a second electrode (238) electrically connected to the second semiconductor layer (232). The first electrode (235) and the second electrode (238) of the inorganic light-emitting diode (230) may each be electrically connected to a first electrode pad (241) and a second electrode pad (242) disposed on the same layer.

[0143] In some embodiments, the first semiconductor layer (231) may include a p-type semiconductor layer. The p-type semiconductor layer is In x Al y Ga 1-x-y A semiconductor material having the composition formula N (0≤x≤1, 0≤y≤1, 0≤x+y≤1) can be selected from, for example, GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and p-type dopants such as Mg, Zn, Ca, Sr, and Ba can be doped.

[0144] The second semiconductor layer (232) may include, for example, an n-type semiconductor layer. The n-type semiconductor layer is In x Al y Ga 1-x-y A semiconductor material having the composition formula N (0≤x≤1, 0≤y≤1, 0≤x+y≤1) can be selected from, for example, GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and can be doped with n-type dopants such as Si, Ge, and Sn.

[0145] The intermediate layer (233) is a region where electrons and holes recombine, and as electrons and holes recombine, they transition to a lower energy level and can generate light having a corresponding wavelength. The intermediate layer (233) is, for example, In x Al y Ga 1-x-y It can be formed by including a semiconductor material having a composition formula of N (0≤x≤1, 0≤y≤1, 0≤x+y≤1), and can be formed as a single quantum well structure or a multi-quantum well (MQW) structure. In addition, it may include a quantum wire structure or a quantum dot structure.

[0146] FIG. 8b illustrates that the first semiconductor layer (231) includes a p-type semiconductor layer and the second semiconductor layer (232) includes an n-type semiconductor layer, but the present invention is not limited thereto. In another embodiment, the first semiconductor layer (231) may include an n-type semiconductor layer and the second semiconductor layer (232) may include a p-type semiconductor layer.

[0147] FIGS. 9a to 9d are schematic drawings illustrating a method for manufacturing a display device according to an embodiment of the present invention. The method for manufacturing a display device according to an embodiment of the present invention may be used to manufacture the aforementioned display device, but is not limited thereto.

[0148] Referring to FIG. 9a, a base layer (BL) and a bridge portion (12) may be arranged. In one embodiment, the base layer (BL) and the bridge portion (12) may be formed by laminating an insulating layer (IL), etc., on a substrate (100). At this time, the height (H1) of the base layer (BL) may be formed to be greater than the height (H2) of the bridge portion (12). The base layer (BL) may be composed mostly of an insulating layer (IL), excluding the substrate (100).

[0149] Referring to FIG. 9b, a sacrificial layer (SL) can be deposited. In one embodiment, the sacrificial layer (SL) is silicon oxide (SiO₂). x It may include ). The sacrificial layer (SL) may be placed in an area excluding the upper surface of the base layer (BL). For example, the sacrificial layer (SL) may be placed to fill the first opening (CS1), may be placed on the upper surface of the bridge portion (12), and may not be placed on the upper surface of the base layer (BL). In other words, the sacrificial layer (SL) may be deposited to have an opening corresponding to the upper surface of the base layer (BL). At this time, the sacrificial layer (SL) may be deposited at the same height as the base layer (BL). For example, the upper surface of the sacrificial layer (SL) may be located on the same plane as the upper surface of the base layer (BL).

[0150] Referring to FIG. 9c, a pixel layer (PL) can be deposited. In one embodiment, the pixel layer (PL) can be deposited on a base layer (BL) and a sacrificial layer (SL). That is, a buffer layer (111), a pixel circuit driver (PC), an insulating layer (IL), a light-emitting element (LED), and an encapsulation layer (300) can be deposited in sequence on the upper surface of the base layer (BL) and the upper surface of the sacrificial layer (SL). In this case, the sacrificial layer (SL) can be positioned between the upper surface of the bridge portion (12) and the lower surface of the pixel layer (PL). At this time, the pixel circuit driver (PC) can be electrically connected to the wiring (WL) arranged in the bridge portion (12) through a contact hole provided in the base layer (BL).

[0151] Of course, in other embodiments, the pixel layer (PL) can be bonded onto the base layer (BL) and the sacrificial layer (SL). That is, in other separate processes, the buffer layer (111), the pixel circuit driver (PC), the insulating layer (IL), the light-emitting element (LED), and the encapsulation layer (300) are deposited to form the pixel layer (PL), and the pixel layer (PL) can be bonded to the upper surface of the base layer (BL) and the sacrificial layer (SL). In this case, the sacrificial layer (SL) can be located between the upper surface of the bridge portion (12) and the lower surface of the pixel layer (PL).

[0152] At this time, as described above, it will be understood that in one embodiment, the pixel layer (PL) may be positioned so as to be offset from the base layer (BL) in a planar view. Being positioned so as to be offset from the base layer (BL) in a planar view means, for example, that the base layer (BL) is positioned at a location where the pixel layer (PL) is rotated by a predetermined angle with the center (C) of the pixel layer (PL) as the axis of rotation. Of course, it will be understood that the size of the pixel layer (PL) may be larger than the size of the base layer (BL).

[0153] Referring to FIG. 9d, the sacrificial layer (SL) can be removed. In one embodiment, the sacrificial layer (SL) can be removed by wet etching. The sacrificial layer (SL), for example, silicon oxide, can be etched by a hydrofluoric acid (HF) solution. Accordingly, the sacrificial layer (SL) is removed, and the pixel layer (PL) is spaced apart from the upper surface of the bridge portion (12) and can be positioned above the first opening (CS1). In one embodiment, the space between the first opening (CS1) where the sacrificial layer (SL) was located, and between the upper surface of the bridge portion (12) and the lower surface of the pixel layer (PL) may be an empty space. In another embodiment, the space between the first opening (CS1) where the sacrificial layer (SL) was located, and between the upper surface of the bridge portion (12) and the lower surface of the pixel layer (PL) may be refilled with an elastic member. In this case, the elastic member may be, for example, silicone oil. The elastic member can make it easier to stretch the island portion (11) and the bridge portion (12).

[0154] The display device (1) according to the above-described embodiments can be used in various electronic devices capable of providing an image. Here, an electronic device refers to a device that uses electricity and has the function of providing a predetermined image.

[0155] FIG. 10a is a schematic perspective view of an electronic device (1000) including a display device according to one embodiment of the present invention, and FIG. 10b is a schematic block diagram of an electronic device (1000) including a display device (1) according to one embodiment of the present invention.

[0156] Referring to FIG. 10a, the electronic device (1000) can be freely deformed in three dimensions and can provide a three-dimensional image surface through the display area (DA). The statement that the electronic device (1000) can be freely deformed in three dimensions is distinguished from the operation of an electronic device having a rollable display device, such as when a part of the rolled-up display area is visible to the user, and then another part of the rolled-up display area is unfolded so that the entire display area is visible to the user (or when the entire unfolded display area is visible to the user, and then the display area is rolled up so that only a part of the display area is visible to the user). The electronic device (1000) according to embodiments of the present invention may exhibit a deformation such as the area of ​​the entire display area (DA) increasing or decreasing again as the electronic device (1000) is deformed in the x direction, y direction, and / or z direction.

[0157] Referring to FIG. 10b, the electronic device (1000) may include a processor (1100), memory (1200), input module (1300), display module (1400), power module (1500), built-in module (1600), and external module (1700). According to one embodiment, at least one of the above-described components may be omitted from the electronic device (1000), or one or more other components may be added. According to one embodiment, some of the above-described components (e.g., built-in module (1600)) may be integrated into another component (e.g., display module (1400)).

[0158] The processor (1100) can execute software to control at least one other component (e.g., a hardware or software component) of the electronic device (1000) connected to the processor (1100) and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (1100) can store commands or data received from other components (e.g., an input module (1300), a sensor module (1610), or a communication module (1730)) in a volatile memory (1210), process the commands or data stored in the volatile memory (1210), and store the resulting data in a non-volatile memory (1220).

[0159] The processor (1100) may include a main processor (1110) and an auxiliary processor (1120). The main processor (1110) may include at least one of a central processing unit (1111, CPU) and an application processor (AP). The main processor (1110) may further include at least one of a graphic processing unit (1112, GPU), a communication processor (CP), and an image signal processor (ISP). The main processor (1110) may further include a neural processing unit (1113, NPU). The neural processing unit (1113) is a processor specialized for processing artificial intelligence models, and the artificial intelligence model may be generated through machine learning. The artificial intelligence model may include a plurality of artificial neural network layers. An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially. At least two of the processing unit and processor described above may be implemented as a single integrated configuration (e.g., a single chip), or each may be implemented as an independent configuration (e.g., multiple chips).

[0160] The auxiliary processor (1120) may include a controller (1121). The controller (1121) may include an interface conversion circuit and a timing control circuit. The controller (1121) receives a video signal from the main processor (1110), converts the data format of the video signal to match the interface specifications with the display module (1400), and outputs video data. The controller (1121) may output various control signals required for driving the display module (1400).

[0161] The auxiliary processor (1120) may further include data processing circuits such as a data conversion circuit (1122), a gamma correction circuit (1123), and a rendering circuit (1124). The data conversion circuit (1122) receives image data from the controller (1121) and can compensate the image data so that the image is displayed at a desired brightness according to the characteristics of the electronic device (1000) or the user's settings, or can convert the image data to reduce power consumption or compensate for afterimages. The gamma correction circuit (1123) can convert image data or gamma reference voltage, etc. so that the image displayed on the electronic device (1000) has desired gamma characteristics. The rendering circuit (1124) receives image data from the controller (1121) and can render the image data by considering the pixel arrangement of the display device (1) applied to the electronic device (1000). At least one of the data conversion circuit (1122), gamma correction circuit (1123), and rendering circuit (1124) may be integrated into another component (e.g., main processor (1110) or controller (1121)). In one embodiment, the auxiliary processor (1120) may be integrated into the data driver (1430).

[0162] The memory (1200) can store various data used by at least one component of the electronic device (1000) (e.g., a processor (1100) or a sensor module (1610)) and input or output data for commands related thereto. The memory (1200) may include at least one of a volatile memory (1210) and a non-volatile memory (1220).

[0163] The input module (1300) can receive commands or data to be used for components of the electronic device (1000) (e.g., processor (1100), sensor module (1610) or sound output module (1630)) from outside the electronic device (1000) (e.g., user or external electronic device (2000)).

[0164] The input module (1300) may include a first input module (1310) into which commands or data are input from a user and a second input module (1320) into which commands or data are input from an external electronic device (2000).

[0165] The first input module (1310) may include a microphone, a mouse, a keyboard, or a pen (e.g., a passive pen or an active pen). The first input module (1310) may include mechanical input means or touch input means, such as a button, a dome switch, a jog wheel, or a jog switch, located on the rear or side of the electronic device (1000). The touch input means may include a touchscreen layer of the display device (1).

[0166] The second input module (1320) can be connected to various types of external electronic devices (2000) connected to the electronic device (1000) via wired or wireless connection. According to one embodiment, the second input module (1320) may include an HDMI (high definition multimedia interface), a USB (universal serial bus) interface, an SD card interface, or an audio interface. The second input module (1320) may include a connector capable of physically connecting the electronic device (1000) to the external electronic device (2000), for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector). The electronic device (1000) can perform appropriate control related to the connected external electronic device (2000) in response to the external electronic device (2000) being connected to the second input module (1320).

[0167] The display module (1400) provides information visually to the user. The display module (1400) may include a display device (1), a scan driver (1420), and a data driver (1430).

[0168] The display device (1) displays (outputs) information processed by the electronic device (1000). The display device (1) can display information on the execution screen of an application running on the electronic device (1000), or UI (User Interface) and GUI (Graphic User Interface) information based on the execution screen information.

[0169] The scan driver (1420) may be mounted on the display device (1) as a driving chip. Alternatively, the scan driver (1420) may be formed directly on the display device (1). For example, the scan driver (1420) may include an ASG (Amorphous Silicon TFT Gate driver circuit), an LTPS (Low Temperature Polycrystalline Silicon) TFT Gate driver circuit, or an OSG (Oxide Semiconductor TFT Gate driver circuit) embedded in the display device (1). The scan driver (1420) receives a control signal from the controller (1121) and outputs scan signals to the display device (1) in response to the control signal.

[0170] The display device (1) may further include a light emission control driver. The light emission control driver outputs a light emission control signal to the display device (1) in response to a control signal received from the controller (1121). The light emission control driver may be formed separately from the scan driver (1420) or may be integrated into the scan driver (1420).

[0171] The data driver (1430) receives a control signal from the controller (1121), converts the image data into an analog voltage data voltage in response to the control signal, and then outputs the data voltages to the display device (1).

[0172] The data driver (1430) may be integrated with some components of the auxiliary processor (1120). For example, the data driver (1430) may be provided as a timing controller embedded driver integrated circuit (Timing controller embedded driver IC) including a controller (1121).

[0173] The power module (1500) supplies power to the components of the electronic device (1000). The power module (1500) may include a battery that charges the power voltage. Additionally, the power module (1500) is provided with a connection port, and the connection port may be included in a second input module (1320) to which an external charger that supplies power for charging the battery is connected. Alternatively, the power module (1500) may include a wireless power transmission and reception member so that the battery can be charged wirelessly. The wireless power transmission and reception member may include a plurality of coil-shaped antenna radiators. The power module (1500) may include a PMIC (power management integrated circuit). The PMIC supplies optimized power to each of the components of the electronic device (1000).

[0174] The electronic device (1000) may further include an internal module (1600) and an external module (1700). The internal module (1600) may include a sensor module (1610), an antenna module (1620), and an audio output module (1630). The external module (1700) may include a camera module (1710), a light module (1720), and / or a communication module (1730).

[0175] The sensor module (1610) may include touch electrodes of the touchscreen layer of the display device (1) and a touch sensor driver. The sensor module (1610) may detect input by the user's body or input by a pen and generate an electrical signal or data value corresponding to the input. The sensor module (1610) may include at least one of a touch sensor (1611), a biosensor (1612), and a strain sensor (1613).

[0176] The touch sensor (1611) can generate data values ​​corresponding to coordinate information of input by the user's body (e.g., finger, etc.) or input by a pen. The touch sensor (1611) can generate data values ​​of a change in capacitance, a change in pressure, or an electromagnetic change resulting from the input.

[0177] The biosensor (1512) can generate data values ​​that recognize a part of the user's body (e.g., fingerprint, iris, face, etc.) or generate data values ​​corresponding to body information (e.g., blood pressure, water content, heart rate, body composition, etc.). The biosensor (1512) can use an optical method, an ultrasonic method, or a capacitive method.

[0178] The strain sensor (1613) may include layers, patterns, or wirings in which a measurable physical quantity changes according to the stretching of the display device (1). For example, the strain sensor (1613) may include wirings in which resistance and / or capacitance changes due to the stretching of the display device (1). In another embodiment, the strain sensor (1613) may include an optical layer or optical pattern in which transmittance and / or reflectance changes due to the stretching of the display device (1).

[0179] Based on the change in physical quantity due to the stretching of the display device (1) measured by the strain sensor (1613), the electronic device (1000) can improve the quality of the image implemented in the display device (1) or control the display device (1). The control operation of the display device (1) may include, for example, displaying an operation image for protecting the display device (1), cutting off the voltage for driving the display device (1), or stopping the stretching operation of the display device (1).

[0180] In one embodiment, at least one of a touch sensor (1611), a biosensor (1612), and a strain sensor (1613) may be embedded in the display device (1). For example, at least one of the touch sensor (1611), the biosensor (1612), and the strain sensor (1613) may be formed through a process that is continuous with the process of forming the pixel driving circuit and / or light-emitting element of the display device (1). As a result, the display device (1) may function as one of the input modules (1300) that provide an input interface between the electronic device (1000) and the user, and may also function as a display module (1400) that provides an output interface between the electronic device (1000) and the user.

[0181] In one embodiment, at least two of the touch sensor (1611), biosensor (1612), and strain sensor (1613) may be formed to be integrated into a single sensing panel through the same process. In one embodiment, the sensing panel may be placed between the display device (1) and a window cover placed on the front of the display device (1), but the present invention is not limited thereto.

[0182] The antenna module (1620) may include one or more antennas for transmitting a signal or power to the outside or receiving it from the outside. According to one embodiment, the communication module (1730) may transmit a signal to an external electronic device or receive it from an external electronic device through an antenna suitable for a communication method. The antenna pattern of the antenna module (1620) may be integrated with one component of the display module (1400) (e.g., a display device (1)) or a biosensor (1612), etc.

[0183] The sound output module (1630) is a device for outputting sound signals to the outside of the electronic device (1000), and can output sound data received from the communication module (1730) or stored in the memory (1200) in call signal reception, call mode or recording mode, voice recognition mode, broadcast reception mode, etc. The sound output module (1630) can output sound signals related to functions performed in the electronic device (1000) (e.g., call signal reception sound, message reception sound, etc.). The sound output module (1630) may include a receiver and a speaker. At least one of the receiver and the speaker may be a sound generating device attached to the rear of the display device (1) to vibrate the display device (1) and output sound. The sound generating device may be a piezoelectric element or a piezoelectric actuator that contracts and expands according to an electric signal, or an exciter that generates magnetic force using a voice coil to vibrate the display device (1).

[0184] The camera module (1710) can capture still images and video. According to one embodiment, the camera module (1710) may include one or more lenses, image sensors, or image signal processors. The camera module (1710) may further include an infrared camera capable of measuring the presence or absence of a user, the location of the user, the user's gaze, etc.

[0185] The light module (1720) can use light from a light source to output a signal to indicate the occurrence of an event or provide light for image acquisition. Here, examples of event occurrences may include receiving a message, receiving a call signal, a missed call, an alarm, a schedule notification, receiving an email, or receiving battery charge capacity information notifications. The light module (1720) may include a light-emitting diode or a xenon lamp. The light module (1720) may emit single-color or multiple-color light toward the front or rear of the electronic device (1000). The light module (1720) may operate in conjunction with the camera module (1710) or operate independently.

[0186] The communication module (1730) can support the establishment of a wired or wireless communication channel between an electronic device (1000) and an external electronic device (2000), and the performance of communication through the established communication channel. The communication module (1730) may include one or all of a wireless communication module such as a cellular communication module, a short-range wireless communication module, or a GNSS (global navigation satellite system) communication module, and a wired communication module such as a LAN (local area network) communication module or a power line communication module. The communication module (1730) can transmit and receive wireless signals over an internet network using at least one of WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, and DLNA (Digital Living Network Alliance) technologies. Additionally, the communication module (1730) can support short-range communication by using at least one of Bluetooth™, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies. The various types of communication modules (1730) described above may be implemented as a single chip or as separate chips.

[0187] FIGS. 11a to 11i are schematic perspective views illustrating embodiments of an electronic device including a display device according to one embodiment of the present invention.

[0188] Referring to FIG. 11a, a display device according to one embodiment of the present invention can be utilized in a wearable electronic device (1000A) that can be worn on a part of a user's body. The wearable electronic device (1000A) may include a body part (3110) and a display part (3120) provided in the body part (3110). The display device according to embodiments of the present invention can be used as the display part (3120) of the wearable electronic device (1000A). As illustrated in FIG. 11a, the wearable electronic device (1000A) may be modified. In one embodiment, it can be used as a smart watch or a smartphone depending on the user's choice.

[0189] FIG. 11b illustrates a medical electronic device (1000B). In one embodiment, the medical electronic device (1000B) may include a body part (3210) and a light-emitting part (3220). A display device according to embodiments of the present invention may be used as the light-emitting part (3220) of the medical electronic device (1000B). The light-emitting part (3220) may emit light of a specific wavelength band (e.g., infrared, visible light, etc.) to the patient's body. In one embodiment, the body part (3210) may have a stretchable fiber material and may have a structure that can be worn on the user's body.

[0190] FIG. 11c illustrates an educational electronic device (1000C). In one embodiment, the educational electronic device (1000C) may include a display unit (3320) provided within a body unit (3310). The display unit (3320) may utilize a display device according to embodiments of the present invention. The display unit (3320) may provide images such as a sea with waves, a snow-covered mountain, or a volcano with flowing lava, wherein the display unit (3320) may extend in the height direction (e.g., z-direction) to reflect the height of the waves, mountain, or volcano. In some embodiments, a portion of the display unit (3320) may sequentially vary in height along the direction of the lava flow to show the movement of the lava in three dimensions. The educational electronic device (1000C) may include a plurality of pins (or stroke portions, 3330) arranged on the back of the display portion (3320) so that the display portion (3320) extends in the height direction. The pins (3330) may be implemented so that the image displayed on the display portion (3320) has a three-dimensional height as they move along a third direction (e.g., the z direction or the -z direction). FIG. 11c describes the educational electronic device (1000C), but its use is not limited as long as it provides a certain image information.

[0191] FIGS. 11d and FIGS. 11e illustrate the use of a display device in a wearable electronic device (1000D-1, 1000D-2), such as a smart watch.

[0192] In one embodiment, as illustrated in FIG. 11d, the display device corresponding to the display unit (3320) of the electronic device (1000D-1) can be stretched three-dimensionally, so it can provide various haptic information to the user in addition to visual information through images. In one embodiment, the electronic device (1000D-1) can provide haptic information such as Braille markings for the visually impaired or tactile stimulation linked to images by using a plurality of pins (or stroke unit, 3330) placed below the display unit (3320). Since the display device forming the display unit (3320) can be stretched three-dimensionally, it can provide the aforementioned haptic information to the user. The electronic device (1000D-1) may include a body part (3310) comprising a housing (3314) in which a display device forming a display part (3320) and pins (or stroke part, 3330) are housed, and a frame (3312) that can be coupled to the housing (3314) with the display device in between. In some embodiments, the frame (3312) may be formed integrally with the housing (3314).

[0193] The electronic device (1000D-2) of FIG. 11e may include a body part (3310) as in FIG. 11d and a display part (3320) that is housed in the body part (3310) and can provide visual information. In some embodiments, the display device corresponding to the display part (3320) may include a dome-shaped display part (3320) because it is three-dimensionally stretchable. In one embodiment, the display device may be assembled on a dome-shaped body frame during the manufacturing process of the electronic device (1000D-2), and at this time, since the display device is three-dimensionally stretchable, it may be assembled in a stretched state along the shape of a hemispherical body frame.

[0194] FIG. 11f illustrates that in one embodiment of the present invention, another electronic device (1000E) includes a robot. The robot can recognize movement or objects using a camera module (3470) and can display a predetermined image to a user through a display unit (3420, 3430).

[0195] As some embodiments, display devices according to one embodiment of the present invention can be assembled to a body frame having a hemispherical shape because they can be extended in various directions as described above, and thus the robot may include a hemispherical display unit (3420, 3430).

[0196] FIG. 11g illustrates a vehicle display device (1000F) as another electronic device in one embodiment of the present invention. The vehicle display device (1000F) may include a cluster (3510), a Center Information Display (CID) (3520), and / or a co-driver display (3530). Since the display device according to the embodiment of the present invention can be extended in various directions, it can be used for the cluster (3510), the Center Information Display (CID) (3520), and / or the co-driver display (3530) without being constrained by the shape of the vehicle's internal frame.

[0197] FIG. 11g illustrates the cluster (3510), the Center Information Display (CID) (3520), and / or the co-driver display (3530) being separated, but the invention is not limited thereto. In another embodiment, two or more selected from the cluster (3510), the Center Information Display (CID) (3520), and the co-driver display (3530) may be connected as a single unit.

[0198] In some embodiments, the vehicle display device (1000F) may include a button (3540) capable of displaying a predetermined image. Referring to the enlarged view of FIG. 11g, the hemispherical button (3540) may include an object (3542) that provides a sense of use of the button while moving in the z-direction or -z-direction, and a display device placed on the object (3542). In some embodiments, if the object (3542) has a three-dimensionally rounded surface, the display device may also have a three-dimensionally rounded surface.

[0199] FIG. 11h illustrates that an electronic device according to one embodiment of the present invention is an electronic device (1000G) for advertising or display. In some embodiments, the electronic device (1000G) for advertising or display may be installed on a fixed structure (3610), such as a wall or a column. If the structure (3610) includes an uneven surface as shown in FIG. 11h, the electronic device (1000G) for advertising or display may also be placed along the uneven surface of the structure (3610). In some embodiments, the electronic device (1000G) for advertising or display may be installed on the structure (3610) using a heat-shrink film or the like.

[0200] FIG. 11i illustrates that an electronic device (1000H) according to one embodiment of the present invention is a controller. The controller may include image-type buttons. For example, the controller may include first to third button areas (3720, 3730, 3740) in which a portion of the display portion (3710) protrudes in the z-direction or protrudes in the -z-direction (or is recessed in the z-direction). In some embodiments, the first and third button areas (3720, 3740) may protrude in the z-direction, and the second button area (3730) may protrude in the -z-direction (or be recessed in the z-direction).

[0201] Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely illustrative. Those skilled in the art will fully understand that various modifications and equivalent alternative embodiments are possible from the embodiments. Accordingly, the true technical scope of protection of the present invention should be determined based on the appended claims.

Claims

1. An island portion where a light-emitting diode is placed; and A bridge section connecting the above-mentioned island section to another adjacent island section; comprising The aforementioned Ireland department, A base layer connected to the above bridge portion; and A display device comprising: a pixel layer disposed on the base layer and overlapping with at least a portion of the base layer and the bridge portion.

2. In Paragraph 1, A display device in which the lower surface of the pixel layer is connected to the upper surface of the base layer and is spaced apart from the upper surface of the bridge portion.

3. In Paragraph 2, A display device in which an elastic member is filled in the space between the lower surface of the pixel layer and the upper surface of the bridge portion.

4. In Paragraph 1, A display device having a light-emitting element and a pixel driving circuit portion electrically connected to the light-emitting element and configured to drive the light-emitting element disposed in the pixel layer.

5. In Paragraph 4, A display device in which the pixel driving circuit is electrically connected to the wirings arranged in the bridge portion through a contact hole provided in the base layer.

6. In Paragraph 1, A display device in which one side of the pixel layer and one side of the base layer corresponding to one side of the pixel layer have an oblique slope relative to each other.

7. In Paragraph 1, The above pixel layers are provided in a plurality, and the plurality of pixel layers are arranged in parallel along a first direction, and A display device in which one side of each of the plurality of pixel layers is parallel to the first direction.

8. In Paragraph 7, A display device in which one side of the base layer has an oblique slope with respect to the first direction.

9. In Paragraph 1, A display device in which the size of the pixel layer in a planar view is larger than the size of the base layer.

10. In Paragraph 1, A display device in which the height of the base layer is greater than the height of the bridge portion.

11. In Paragraph 1, A display device comprising a base layer including a substrate and an insulating layer disposed on the substrate.

12. A step of arranging a base layer and a bridge portion connected to the base layer; A step of depositing a sacrificial layer in an area excluding the upper surface of the base layer; Step of placing a pixel layer on the upper surface of the base layer and the upper surface of the sacrificial layer; and A method for manufacturing a display device comprising the step of removing the sacrificial layer.

13. In Paragraph 12, A method for manufacturing a display device, wherein the step of arranging the pixel layer comprises the step of arranging it to overlap with at least a portion of the base layer and the bridge portion.

14. In Paragraph 12, A method for manufacturing a display device, wherein the step of removing the sacrificial layer includes the step of separating the lower surface of the pixel layer from the upper surface of the bridge portion.

15. In Paragraph 12, A method for manufacturing a display device, wherein a light-emitting element and a pixel driving circuit portion electrically connected to the light-emitting element and configured to drive the light-emitting element are disposed in the pixel layer.

16. In Paragraph 15, A method for manufacturing a display device, wherein the step of arranging the pixel layer comprises the step of electrically connecting the pixel driving circuit to the wiring arranged in the bridge portion through a contact hole provided in the base layer.

17. In Paragraph 12, A method for manufacturing a display device, wherein the step of arranging the pixel layer comprises arranging one side of the pixel layer and one side of the base layer corresponding to the one side of the pixel layer so as to be inclined obliquely with each other.

18. In Paragraph 12, The above pixel layers are provided in a plurality, and the plurality of pixel layers are arranged in parallel along a first direction, and A method for manufacturing a display device in which one side of each of the plurality of pixel layers is arranged to be parallel to the first direction.

19. In Paragraph 18, A method for manufacturing a display device, wherein one side of the base layer is arranged to have an oblique inclination with respect to the first direction.

20. A display device for displaying an image; and A housing for accommodating the above-mentioned display device; comprising The above display device is, An island portion where a light-emitting diode is placed; and A bridge section connecting the above-mentioned island section to another adjacent island section; comprising The aforementioned Ireland department, A base layer connected to the above bridge portion; and An electronic device comprising: a pixel layer disposed on the base layer and overlapping with at least a portion of the base layer and the bridge portion.

Images