Display device, method for repairing display device, and electronic device including same

Abstract

This display device comprises: a first electrode pad and a second electrode pad spaced apart from each other on a substrate; a first light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad, wherein a portion of the first electrode pad overlaps the conductive pattern, the width of the portion of the first electrode pad is smaller than the width of a first portion of the first electrode pad overlapping the first light-emitting element, and the width of a first connection portion of the display device is smaller than the width of the first portion in a second direction.

Description

A display device, a method for repairing a display device, and an electronic device including the same.

[0001] Embodiments of the present invention relate to a display device, a method for repairing a display device, and an electronic device including the same.

[0002] As display devices that visually display electrical signals advance, various display devices with excellent characteristics such as thinness, lightness, and relatively 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.

[0003] Embodiments of the present invention provide a display device, a method for repairing a display device, and an electronic device including the same.

[0004] An embodiment of the present invention discloses a display device comprising: a first electrode pad and a second electrode pad spaced apart from each other on a substrate; a first light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad, wherein a portion of the first electrode pad overlaps with the conductive pattern, and the width of the portion of the first electrode pad is smaller than the width of a first portion of the first electrode pad that overlaps with the first light-emitting element.

[0005] In one embodiment, the conductive pattern may have the same voltage level as the second electrode pad.

[0006] In one embodiment, the invention further comprises a common voltage line disposed on the substrate and electrically connected to the second electrode pad; and a second insulating layer between the common voltage line and the conductive pattern, wherein the common voltage line can be electrically connected to the conductive pattern through a contact hole defined in the second insulating layer.

[0007] In one embodiment, a portion of the second electrode pad overlaps with the conductive pattern, and the width of the portion of the second electrode pad may be smaller than the width of the first portion of the second electrode pad that overlaps with the first light-emitting element.

[0008] In one embodiment, the apparatus further comprises: a transistor disposed on the substrate; another first electrode pad disposed next to (adjacent to) the first electrode pad; another second electrode pad spaced apart from the other first electrode pad; and a second light-emitting element disposed on the other first electrode pad and the other second electrode pad and electrically connected to the other first electrode pad and the other second electrode pad, wherein the other first electrode pad comprises a first portion overlapping with the second light-emitting element; and a second portion electrically connected to the transistor, wherein the first portion and the second portion of the other first electrode pad may be separated from each other.

[0009] In one embodiment, the second light-emitting element may be in an off state.

[0010] In one embodiment, a portion of the first insulating layer corresponding to the separation region between the first portion and the second portion of the other first electrode pad may include a concave portion.

[0011] In one embodiment, the bottom surface of the concave portion may be spaced apart from the top surface of the conductive pattern.

[0012] In one embodiment, the concave portion extends to the upper surface of the conductive pattern, and the first portion or the second portion of the other first electrode pad may come into direct contact with the upper surface of the conductive pattern.

[0013] One embodiment of the present invention is a method for repairing a display device, wherein the display device comprises: a transistor on a substrate; a first electrode pad electrically connected to the transistor; a second electrode pad spaced apart from the first electrode pad; a light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad, wherein the repair method may include a process of irradiating a laser onto a portion of the first electrode pad such that a first portion of the first electrode pad electrically connected to the light-emitting element and a second portion of the first electrode pad electrically connected to the transistor are separated.

[0014] In one embodiment, the width of the portion of the first electrode pad irradiated with the laser may be smaller than the width of the first portion of the first electrode pad.

[0015] In one embodiment, during the process of irradiating the laser, the portion of the first electrode pad may overlap with the conductive pattern.

[0016] In one embodiment, in the process of irradiating the laser, the width of the part of the first electrode pad may be smaller than the width of the first part of the first electrode pad or the width of the second part.

[0017] In one embodiment, the conductive pattern may have the same voltage level as the second electrode pad.

[0018] An embodiment of the present invention discloses an electronic device comprising a display device, wherein the display device comprises: a first electrode pad and a second electrode pad spaced apart from each other on a substrate; a first light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad, wherein the width of a portion of the first electrode pad is smaller than the width of a first portion of the first electrode pad that overlaps with the first light-emitting element.

[0019] In one embodiment, the conductive pattern may have the same voltage level as the second electrode pad.

[0020] In one embodiment, the invention further comprises a common voltage line disposed on the substrate and electrically connected to the second electrode pad; and a second insulating layer between the common voltage line and the conductive pattern, wherein the common voltage line can be electrically connected to the conductive pattern through a contact hole defined in the second insulating layer.

[0021] In one embodiment, the portion of the first electrode pad may overlap with the conductive pattern.

[0022] In one embodiment, the apparatus further comprises: a transistor disposed on the substrate; another first electrode pad disposed next to (adjacent to) the first electrode pad; another second electrode pad spaced apart from the other first electrode pad; and a second light-emitting element disposed on the other first electrode pad and the other second electrode pad and electrically connected to the other first electrode pad and the other second electrode pad, wherein the other first electrode pad comprises a first portion overlapping with the second light-emitting element; and a second portion electrically connected to the transistor, wherein the first portion and the second portion of the other first electrode pad may be separated from each other.

[0023] In one embodiment, a portion of the first insulating layer corresponding to the separation region between the first portion and the second portion of the other first electrode pad may include a concave portion.

[0024] According to one embodiment of the present invention, a repair process capable of preventing unexpected defects and a display device and electronic device including the same can be provided.

[0025] These effects are exemplary and do not limit the scope of the present invention.

[0026] The above and other embodiments, advantages, and features of the present invention will become more apparent by describing the embodiments in more detail with reference to the accompanying drawings.

[0027] FIG. 1 is a schematic perspective view of an embodiment of a display device according to the present invention.

[0028] FIGS. 2a and FIGS. 2b are perspective views showing the display device of FIG. 1 extended in a first direction.

[0029] FIG. 2c is a perspective view showing the display device of FIG. 1 extended in a second direction.

[0030] FIG. 2d is a perspective view showing the display device of FIG. 1 extended in the first direction and the second direction.

[0031] FIG. 2e is a perspective view showing the display device of FIG. 1 extended in a third direction.

[0032] FIG. 3 is a schematic plan view of one embodiment of a display device according to the present invention.

[0033] FIG. 4a is an enlarged plan view of one embodiment of a part of a display device showing region IV of FIG. 3 according to the present invention.

[0034] FIG. 4b is an enlarged plan view of one embodiment of a part of a display device showing region IV of FIG. 3 according to the present invention.

[0035] FIG. 4c is an enlarged plan view of one embodiment of a part of a display device showing region IV of FIG. 3 according to the present invention.

[0036] FIG. 4d is an enlarged plan view of one embodiment of a part of a display device showing the display area (DA) of FIG. 3 according to the present invention.

[0037] FIG. 4e is an enlarged plan view of one embodiment of a part of a display device showing region IV of FIG. 3 according to the present invention.

[0038] FIG. 5 is a schematic cross-sectional view showing one embodiment of a first island part and a first bridge part disposed in the display area of ​​a display device according to the present invention.

[0039] FIGS. 6a to 6c are equivalent circuit diagrams showing an embodiment of a subpixel of a display device according to the present invention.

[0040] FIG. 7 is a plan view showing an example of a part of the display area of ​​a display device according to the present invention.

[0041] FIG. 8 is a cross-sectional view showing an embodiment of a part of the display area of ​​a display device along the line VIII-VIII' of FIG. 7 according to the present invention.

[0042] FIG. 9 is a plan view showing an example of a part of the display area of ​​a display device according to the present invention.

[0043] FIG. 10a is a plan view illustrating an embodiment of a repair process for a display device according to the present invention.

[0044] FIG. 10b is a cross-sectional view showing an embodiment of the structure of a display device by a repair process of a display device according to the present invention.

[0045] Fig. 10c is an enlarged view of part Xc of Fig. 10b.

[0046] FIG. 11 is a cross-sectional view showing an embodiment of the structure of a display device by a repair process of a display device according to the present invention.

[0047] FIG. 12 is a cross-sectional view schematically showing one embodiment of a display device according to the repair process of a display device according to the present invention.

[0048] FIG. 13a is a schematic perspective view of an embodiment of an electronic device including a display device according to the present invention.

[0049] FIG. 13b is a block diagram schematically illustrating an embodiment of an electronic device including a display device according to the present invention.

[0050] FIGS. 14a to 14i are schematic perspective views illustrating embodiments of an electronic device including a display device according to the present invention.

[0051] An embodiment of the present invention discloses a display device comprising: a first electrode pad and a second electrode pad spaced apart from each other on a substrate; a first light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad, wherein a portion of the first electrode pad overlaps with the conductive pattern, and the width of the portion of the first electrode pad is smaller than the width of a first portion of the first electrode pad that overlaps with the first light-emitting element.

[0052] One embodiment of the present invention is a method for repairing a display device, wherein the display device comprises: a transistor on a substrate; a first electrode pad electrically connected to the transistor; a second electrode pad spaced apart from the first electrode pad; a light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad, wherein the repair method may include a process of irradiating a laser onto a portion of the first electrode pad such that a first portion of the first electrode pad electrically connected to the light-emitting element and a second portion of the first electrode pad electrically connected to the transistor are separated. One embodiment of the present invention is an electronic device comprising a display device, wherein the display device comprises a first electrode pad and a second electrode pad spaced apart from each other on a substrate; An electronic device is disclosed comprising: a first light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad, wherein the width of a portion of the first electrode pad is smaller than the width of a first portion of the first electrode pad that overlaps with the first light-emitting element.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] In this specification, "A and / or B" indicates the case where it is A, B, or both A and B. And, "at least one of A and B" indicates the case where it is A, B, or both A and B.

[0062] In the following embodiments, when a membrane, region, component, etc. is described as being connected, it includes cases where the membrane, region, or component is directly connected, or / or cases where other membranes, regions, or components are interposed between the membranes, regions, or components to be indirectly connected. For example, when a membrane, region, component, etc. is described as being electrically connected in this specification, it indicates cases where the membrane, region, or component, etc. are directly electrically connected, and / or cases where other membranes, regions, or components are interposed between them to be indirectly electrically connected.

[0063] The x-axis, y-axis, and z-axis are not limited to the three axes of an orthogonal coordinate system but 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.

[0064] FIG. 1 is a schematic perspective view of an embodiment of a display device (1) according to 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 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.

[0065] 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 by 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).

[0066] 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). In one embodiment, 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.

[0067] 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.

[0068] 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.

[0069] 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).

[0070] 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.

[0071] FIG. 3 is a schematic plan view showing one embodiment of a display device (1) according to the present invention.

[0072] 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 transistors electrically connected to the light-emitting elements may be placed 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 a gate driving circuit (GDC) placed 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).

[0073] 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).

[0074] 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.

[0075] 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. In one embodiment, 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.

[0076] FIG. 4a is an enlarged plan view of one embodiment of a part of a display device (1) showing region IV of FIG. 3 according to the present invention.

[0077] Referring to FIG. 4a, the display device (1) may include first island sections (11) spaced apart from each other along 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 first bridge sections (12) connecting the first island sections (11) that are next to (adjacent) each other.

[0078] Each first island section (11) may be connected to a plurality of first bridge sections (12). In one embodiment, each first island section (11) may be connected to four first bridge sections (12). Two first bridge sections (12) may be positioned on both sides of the first island section (11) along a first direction (e.g., x direction or -x direction), and the remaining two first bridge sections (12) may be positioned on both sides of the first island section (11) along a second direction (e.g., y direction or -y direction). In one embodiment, four first bridge sections (12) may be connected to each of the four sides of the first island section (11). Each of the four first bridge sections (12) may be positioned next to (adjacent to) each corner of the first island section (11).

[0079] The first bridge sections (12) may be spaced apart from each other by a first opening (CS1) defined between the first bridge sections (12). In one embodiment, a first opening (CS1) of approximately H shape and a first opening (CS1) of approximately I shape, which is the aforementioned H shape rotated 90 degrees, may be alternately arranged along a first direction (e.g., x direction or -x direction) and a second direction (e.g., y direction or -y direction), respectively. Both ends of each first bridge section (12) are connected to each of the adjacent first island sections (11), and one side of each first bridge section (12) may be spaced apart from one side of the adjacent first island section (11) and / or one side of the other first bridge section (12) by the first opening (CS1).

[0080] The display device (1) may include second island sections (21) spaced apart from each other in a non-display area, for example, a first non-display area (NDA1) shown in FIG. 4a, and second bridge sections (22) connecting the second island sections (21) next to each other (adjacent).

[0081] Each second island section (21) may extend along a first direction (e.g., x direction or -x direction). The second island sections (21) may be spaced apart from each other along a second direction (e.g., y direction or -y direction) that intersects the first direction (e.g., x direction or -x direction). Each second island section (21) may include drivers of the gate driving circuit (GDC, FIG. 2) described with reference to FIG. 3.

[0082] The second bridge section (22) may have a serpentine shape. The length of the second bridge section (22) may be greater than the shortest distance between adjacent second island sections (21) along the second direction (e.g., the y direction or the -y direction). In one embodiment, the second bridge section (22) may have a shape approximately omega (Ω) that is convex toward the first direction (e.g., the x direction or the -x direction). The second bridge sections (22) may be spaced apart from each other and positioned between adjacent second island sections (21).

[0083] The second bridge sections (22) between adjacent second island sections (21) may be spaced apart from each other by a second opening (CS2). Between adjacent second island sections (21), the second openings (CS2) and the second bridge sections (22) may be arranged alternately along a first direction (e.g., x direction or -x direction). The second openings (CS2) may have the same shape as each other. Both ends of each second bridge section (22) extend to the adjacent second island section (21), respectively, and one side of each second bridge section (22) may be spaced apart from the side of the adjacent second island section (21) and / or the side of the other second bridge section (22) by the second opening (CS2).

[0084] Any one second island section (21) placed in the first non-display area (NDA1) may correspond to a plurality of first island sections (11) arranged in the display area (DA). In one embodiment, any one second island section (21) placed in the first non-display area (NDA1) may correspond to the first island sections (11) arranged in the (i)th row and the first island sections (11) arranged in the (i+1)th row in the display area (DA) (where i is a positive integer greater than 0). FIG. 4a illustrates that one second island section (21) corresponds to two rows of first island sections (11), but the present invention is not limited thereto. In another embodiment, any one second island section (21) placed in the first non-display area (NDA1) may correspond to n rows of first island sections (11) placed in the display area (DA) (where n is a positive integer greater than or equal to 3).

[0085] A non-display area, such as a first non-display area (NDA1), may include a first sub-non-display area (SNDA1) in which the aforementioned second island sections (21) and second bridge sections (22) are arranged, and a second sub-non-display area (SNDA2) between the first sub-non-display area (SNDA1) and the display area (DA). In the second sub-non-display area (SNDA2), third bridge sections (23) extending to the display area (DA) and the first sub-non-display area (SNDA1) may be arranged. One end of the third bridge section (23) may extend to the second island section (21) and / or the second bridge section (22), and the other end of the third bridge section (23) may extend to the first island section (11) and / or the first bridge section (12).

[0086] The third bridge section (23) may have a wavy shape. In one embodiment, the shape of the third bridge section (23) may differ from the shapes of the first bridge section (12) and the second bridge section (22), respectively. In one embodiment, as shown in FIG. 4a, the third bridge section (23) may have a shape of approximately omega (Ω) that is convex toward the second direction (e.g., the y direction or the -y direction). The third bridge sections (23) arranged next to each other along the second direction (e.g., the y direction or the -y direction) may have a structure that is symmetrical to each other, such that one is convex toward the y direction and the other is convex toward the -y direction. Between the third bridge sections (23), there may be a structure in which a third opening (CS3) and a fourth opening (CS4) of different shapes are repeated. The width of the third bridge section (23) may differ from the width of the first bridge section (12) and the width of the second bridge section (22). In one embodiment, the width of the third bridge section (23) may be greater than the width of the first bridge section (12) and smaller than the width of the second bridge section (22).

[0087] FIG. 4a shows that the second island portion (21) and the second bridge portion (22) of the non-display area, for example, the first non-display area (NDA1), each have different shapes from the first island portion (11) and the first bridge portion (12) of the display area (DA). In another embodiment of the present invention, the second island portion (21) and the second bridge portion (22) of the non-display area may each have the same shape as the first island portion (11) and the first bridge portion (12) of the display area (DA).

[0088] FIG. 4b is an enlarged plan view of one embodiment of a part of a display device (1) showing region IV of FIG. 3 according to the present invention.

[0089] Referring to FIG. 4b, the display device (1) includes first island sections (11) that are spaced apart from each other in the display area (DA) and first bridge sections (12) that are spaced apart from each other by a first opening (CS1) and connect the first island sections (11) that are adjacent to each other. The structure of the display area (DA) in FIG. 4b may be the same as the structure of the display area (DA) described above with reference to FIG. 4a.

[0090] The display device (1) may include second island sections (21) and second bridge sections (22) disposed in a non-display area, for example, a first non-display area (NDA1). In one embodiment, the second island sections (21) and the second bridge sections (22) may each have substantially the same shape as the first island sections (11) and the first bridge sections (12).

[0091] The second island sections (21) may be 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 non-display area, e.g., a first non-display area (NDA1). Each of the second bridge sections (22) may connect adjacent second island sections (21). The second bridge sections (22) may be spaced apart from each other by a second opening (CS2) defined between the second bridge sections (22).

[0092] The second opening (CS2) may have substantially the same shape as the first opening (CS1). In one embodiment, the second opening (CS2) having an approximate H shape and the second opening (CS2) having an approximate I shape may be alternately repeated in a non-display area, e.g., a first non-display area (NDA1). Both ends of each second bridge section (22) are connected to each of the adjacent second island sections (21), and one side of each second bridge section (2) may be spaced apart from one side of the adjacent second island section (21) and / or one side of the other second bridge section (22) by the second opening (CS2).

[0093] Each second island section (21) can be connected to four second bridge sections (22). Each second island section (21) may include drivers of the gate driving circuit (GDC, FIG. 2) described with reference to FIG. 3.

[0094] Any row of the second island portions (21) placed in the first non-display area (NDA1) may correspond to any row of the first island portions (11) arranged in the display area (DA). In one embodiment, the second island portions (21) arranged in the (i)th row along the first direction (e.g., x direction or -x direction) in the first non-display area (NDA1) may correspond to the first island portions (11) arranged in the same row, e.g., the (i)th row, in the display area (DA) (where i is a positive integer greater than 0).

[0095] The display device (1) may include third bridge sections (23) disposed in a second sub-non-display area (SNDA2) to connect a display area (DA) and a first sub-non-display area (SNDA1). A non-display area, such as a first non-display area (NDA1), may include a first sub-non-display area (SNDA1) in which second island sections (21) and second bridge sections (22) are disposed, and a second sub-non-display area (SNDA2) disposed between the first sub-non-display area (SNDA1) and the display area (DA) and which includes third bridge sections (23). The third bridge section (23) may be substantially the same as the first bridge section (12) and the second bridge section (22). In one embodiment, the width of the third bridge section (23) may be the same as the width of the first bridge section (12) and the width of the second bridge section (22).

[0096] FIG. 4c is an enlarged plan view of one embodiment of a part of a display device showing region IV of FIG. 3 according to the present invention.

[0097] Referring to FIG. 4c, the display device (1) may include first island sections (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 first bridge sections (12) extending to the first island sections (11) next to (adjacent to) each other.

[0098] The first bridge sections (12) may be spaced apart from each other by a first opening (CS1) defined between the first bridge sections (12). The first bridge section (12) may have a wavy shape. In one embodiment, as shown in FIG. 4c, the first bridge section (12) may have a shape of approximately the letter 'S', such as including two round sections (12R) and a straight section (12S) between the two round sections (12R).

[0099] Each first island section (11) may extend into a plurality of first bridge sections (12). In one embodiment, each first island section (11) may extend into four first bridge sections (12). Two first bridge sections (12) may be positioned on both sides of the first island section (11) along a first direction (e.g., x direction or -x direction), and the remaining two first bridge sections (12) may be positioned on both sides of the first island section (11) along a second direction (e.g., y direction or -y direction). Four first bridge sections (12) may each extend along four sides of the first island section (11). Each of the four first bridge sections (12) may be positioned next to (adjacent to) each corner of the first island section (11).

[0100] The display device (1) may include second island sections (21) 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 non-display area, e.g., a first non-display area (NDA1) shown in FIG. 4c, and second bridge sections (22) extending to adjacent second island sections (21).

[0101] The second bridge sections (22) may be spaced apart from each other by a second opening (CS2) defined between the second bridge sections (22). The second bridge sections (22) may have a wavy shape. In one embodiment, as shown in FIG. 4c, the second bridge section (22) may have a shape of approximately the letter 'S'. The size and / or width of the second bridge section (22) may differ from the size and / or width of the first bridge section (12). In one embodiment, the size and / or width of the second bridge section (22) may be larger than the size and / or width of the first bridge section (12). The radius of curvature of the rounded portion of the second bridge section (22) may differ from the radius of curvature of the rounded portion of the first bridge section (12). In one embodiment, the radius of curvature of the rounded portion of the second bridge portion (22) may be larger than the radius of curvature of the rounded portion of the first bridge portion (12).

[0102] Each second island section (21) may be extended into a plurality of second bridge sections (22). Each second island section (21) may be extended into four second bridge sections (22). Two second bridge sections (22) may be positioned on both sides of the second island section (21) along a first direction (e.g., x direction or -x direction), and the remaining two second bridge sections (22) may be positioned on both sides of the second island section (21) along a second direction (e.g., y direction or -y direction). In one embodiment, four second bridge sections (22) may be extended to each of the four sides of the second island section (21). Each second bridge section (22) may be extended to the central part of each side of the second island section (21).

[0103] Any row of second island sections (21) placed in the first non-display area (NDA1) may correspond to a plurality of rows of first island sections (11) arranged in the display area (DA). In one embodiment, any row of second island sections (21) placed in the first non-display area (NDA1) may correspond to the first island sections (11) arranged in the (i)th row and the first island sections (11) arranged in the (i+1)th row of the display area (DA) (where i is a positive integer greater than 0). In another embodiment, any row of second island sections (21) may correspond to n rows of first island sections (11) (where n is a positive integer greater than or equal to 3).

[0104] A non-display area, such as a first non-display area (NDA1), may include a first sub-non-display area (SNDA1) in which the aforementioned second island sections (21) and second bridge sections (22) are arranged, and a second sub-non-display area (SNDA2) between the first sub-non-display area (SNDA1) and the display area (DA). In the second sub-non-display area (SNDA2), third bridge sections (23) extending to the display area (DA) and the first sub-non-display area (SNDA1) may be arranged. One end of the third bridge section (23) may extend to the second island section (21), and the other end of the third bridge section (23) may extend to the first island section (11). In one embodiment, one end of the third bridge section (23) may extend to the central part of one side of the second island section (21), and the other end of the third bridge section (23) may extend to the central part of one side of the first island section (11).

[0105] The third bridge section (23) may have a wavy shape. In one embodiment, the shape of the third bridge section (23) may differ from the shape of the first bridge section (12) and the second bridge section (22), respectively. The width of the third bridge section (23) may differ from the width of the first bridge section (12) and the width of the second bridge section (22). The width of the third bridge section (23) may be greater than the width of the first bridge section (12) and smaller than the width of the second bridge section (22). In the second direction (e.g., the y direction or the -y direction), a third opening (CS3) and a fourth opening (CS4) of different shapes may be alternately arranged between the third bridge sections (23).

[0106] FIG. 4d is an enlarged plan view of one embodiment of a display device (1) showing a display area (DA) of FIG. 3 according to the present invention.

[0107] Referring to FIG. 4d, the display device (1) may include first island sections (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 first bridge sections (12) extending to the first island sections (11) adjacent to each other. The first bridge sections (12) may be spaced apart from each other by a first opening (CS1) defined between the first bridge sections (12).

[0108] In one embodiment, at least one of the sides of the first island portion (11) may be oblique to a virtual line extending toward the center (C) of the first 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. 4d illustrates that the first island portion (11) comprises first to fourth sides (11a, 11b, 11c, 11d), each of which extends along a direction oblique to a first virtual line (IM1) extending toward the center (C) of the first island portions (11). FIG. 4d 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).

[0109] In one embodiment, the first side (11a) and the third side (11c), which are parallel to each other, may intersect the first imaginary line (IM1). The relatively smaller angle (hereinafter referred to as the angle, φ) formed by the first side (11a) and the first imaginary line (IM1) may be greater than 0 degrees and less than 90 degrees. The angle (φ) formed by the third side (11c) and the first imaginary line (IM1) may be greater than 0 degrees and less than 90 degrees.

[0110] The first island section (11) may be extended into a plurality of first bridge sections (12). In one embodiment, the first island section (11) may be extended into four first bridge sections (12). Two first bridge sections (12) may be positioned on both sides of the first island section (11) along a first direction (e.g., x direction or -x direction), and the remaining two first bridge sections (12) may be positioned on both sides of the first island section (11) along a second direction (e.g., y direction or -y direction).

[0111] The first bridge portion (12) may have a wavy shape. In one embodiment, as shown in FIG. 4d, the first 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).

[0112] In one embodiment, the straight section (12S) may be substantially parallel to the side of the adjacent first island section (11) as illustrated in FIG. 4d. In one embodiment, the straight section (12S) of each first bridge section (12) positioned on both sides of the first island section (11) along the first direction (e.g., x direction or -x direction) may be substantially parallel to the side of the first island section (11) (e.g., first side (11a) and third side (11c)). The straight section (12S) of each first bridge section (12) positioned on both sides of the first island section (11) along the second direction (e.g., y direction or -y direction) may be substantially parallel to the side of the first island section (11) (e.g., second side (11b) and fourth side (11d)).

[0113] Each of the first island portions (11) shown in FIG. 4d can be understood as having rotated each of the first island portions (11) shown in FIG. 4c by a first angle (e.g., acute angle) with respect to the center (C). Accordingly, at least one of the sides of the first island portion (11) may be oblique to a virtual line extending to the center (C) of the first 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). Depending on the arrangement of the first island portions (11) and / or the structure of the first bridge portion (12) described above, the area of ​​the first opening (CS1) shown in FIG. 4d may be relatively smaller than the area of ​​the first opening (CS1) shown in FIG. 4c, and thus the display device (1) in the embodiment shown in FIG. 4d may provide a relatively high-resolution image.

[0114] FIG. 4d illustrates that the straight section (12S) of the first bridge section (12) is substantially parallel to the side of the first island section (11) adjacent to the straight section (12S), but the invention is not limited thereto. In another embodiment, the straight section (12S) of the first bridge section (12) may be oblique to the side of the first island section (11) adjacent to the straight section (12S), as shown in FIG. 4c.

[0115] In one embodiment, the structure of the first non-display area (NDA1, FIG. 3) of the display device (1) not disclosed in FIG. 4d may be identical to the structure of the display area (DA) disclosed in FIG. 4d. In one embodiment, the structure of the first non-display area (NDA1, FIG. 3) of the display device (1) not disclosed in FIG. 4d is substantially identical to the structure of the display area (DA) disclosed in FIG. 4d, but the area of ​​the second island portion placed in the first non-display area (NDA1, FIG. 3) may be larger than the area of ​​the first island portion (11). In this case, one second island portion may correspond to a plurality of first island portions (11) arranged in adjacent rows, as described with reference to FIG. 4c. In one embodiment, the structure of the first non-display area (NDA1, FIG. 3) of the display device (1) not disclosed in FIG. 4d may be substantially the same as the structure of the first non-display area (NDA1) shown in any one of FIG. 4a to 4c. As such, the structure of the first non-display area (NDA1, FIG. 3) may be selected from various options within the range disclosed in this specification.

[0116] FIG. 4e is an enlarged plan view of one embodiment of a display device (1) showing region IV of FIG. 3 according to the present invention.

[0117] Referring to FIG. 4e, the display device (1) includes first island sections (11) spaced apart from each other in the display area (DA) and first bridge sections (12) that are spaced apart from each other by the first opening (CS1) and extend to the first island sections (11) that are adjacent to each other.

[0118] The first opening (CS1) may have a bar shape. The first opening (CS1) may include a first sub-opening (CS1A) extended in a first direction (e.g., x direction or -x direction) and a second sub-opening (CS1B) extended in a second direction (e.g., y direction or -y direction). The first sub-opening (CS1A) and the second sub-opening (CS1B) may each have a bar shape. The first sub-opening (CS1A) and the second sub-opening (CS1B) may have substantially the same width and length. The length of each of the first sub-opening (CS1A) and the second sub-opening (CS1B) represents a value measured along the extension direction, and the width represents a value measured along a direction perpendicular to the length direction (e.g., extension direction).

[0119] The display device (1) may include second island sections (21) and second bridge sections (22) disposed in a non-display area, e.g., a first sub-non-display area (SNDA1). The second island sections (21) may be 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 the first sub-non-display area (SNDA1). Each of the second bridge sections (22) may extend to adjacent second island sections (21). The second bridge sections (22) may be spaced apart from each other by a second opening (CS2) defined between the second bridge sections (22).

[0120] The second opening (CS2) may have a bar shape. The second opening (CS2) may include a first sub-opening (CS2A) extended in a first direction (e.g., x direction or -x direction) and a second sub-opening (CS2B) extended in a second direction (e.g., y direction or -y direction). The first sub-opening (CS2A) and the second sub-opening (CS2B) may each have a bar shape. The first sub-opening (CS2A) and the second sub-opening (CS2B) may have substantially the same width and length. Each second island section (21) may extend into four second bridge sections (22). Each second island section (21) may include drivers of the gate driving circuit (GDC, FIG. 2) described with reference to FIG. 3. Some of the drivers of the gate driving circuit (GDC, FIG. 2) may also be placed in the second sub-non-display area (SNDA2). In one embodiment, some of the third island portions (31) may include some drivers.

[0121] Any one second island section (21) placed in the first non-display area (NDA1) may correspond to a plurality of first island sections (11) arranged in the display area (DA). In one embodiment, any one second island section (21) placed in the first non-display area (NDA1) may correspond to the first island sections (11) arranged in the (i)th row and the first island sections (11) arranged in the (i+1)th row in the display area (DA) (where i is a positive integer greater than 0). FIG. 4e illustrates that one second island section (21) corresponds to two rows of first island sections (11), but the invention is not limited thereto. In another embodiment, any one second island section (21) placed in the first non-display area (NDA1) may correspond to n rows of first island sections (11) placed in the display area (DA) (where n is a positive integer greater than or equal to 3).

[0122] The display device (1) may include third island sections (31) and third bridge sections (32) that extend to the display area (DA) and the first sub-non-display area (SNDA1) and are positioned in the second sub-non-display area (SNDA2). The third island sections (31) adjacent to each other may be separated from one another by a third opening (CS3) and may extend to the third bridge sections (32).

[0123] The third opening (CS3) may have a bar shape. The third opening (CS3) may include a first sub-opening (CS3A) extended in a first direction (e.g., x direction or -x direction) and a second sub-opening (CS3B) extended in a second direction (e.g., y direction or -y direction). The first sub-opening (CS3A) and the second sub-opening (CS3B) may each have a bar shape. The first sub-opening (CS3A) and the second sub-opening (CS3B) may have different widths and / or lengths.

[0124] In one embodiment, the length of the first sub-opening (CS3A) of the third opening (CS3) in the first direction (e.g., x direction or -x direction) may be equal to or greater than the length of the second sub-opening (CS3B) of the third opening (CS3) in the second direction (e.g., y direction or -y direction). The width of the first sub-opening (CS3A) of the third opening (CS3) in the second direction (e.g., y direction or -y direction) may be smaller than the width of the second sub-opening (CS3B) of the third opening (CS3) in the first direction (e.g., x direction or -x direction).

[0125] In one embodiment, the length of the first sub-opening (CS3A) of the third opening (CS3) in the first direction (e.g., x direction or -x direction) is equal to the length of the first sub-opening (CS2A) of the second opening (CS2) in the first direction (e.g., x direction or -x direction) and may be greater than the length of the first sub-opening (CS1A) of the first opening (CS1) in the first direction (e.g., x direction or -x direction). The width of the first sub-opening (CS3A) of the third opening (CS3) in the second direction (e.g., y direction or -y direction) may be smaller than the width of the first sub-opening (CS2A) of the second opening (CS2) in the second direction (e.g., y direction or -y direction) and may be equal to the width of the first sub-opening (CS1A) of the first opening (CS1) in the second direction (e.g., y direction or -y direction).

[0126] In one embodiment, the length of the second sub-opening (CS3B) of the third opening (CS3) in the second direction (e.g., y direction or -y direction) is equal to the length of the second sub-opening (CS2B) of the second opening (CS2) in the second direction (e.g., y direction or -y direction) and may be greater than the length of the second sub-opening (CS1B) of the first opening (CS1) in the second direction (e.g., y direction or -y direction). The width of the second sub-opening (CS3B) of the third opening (CS3) in the first direction (e.g., x direction or -x direction) is equal to the width of the second sub-opening (CS2B) of the second opening (CS2) in the first direction (e.g., x direction or -x direction) and may be larger than the width of the second sub-opening (CS1B) of the first opening (CS1) in the first direction (e.g., x direction or -x direction).

[0127] FIG. 5 is a schematic cross-sectional view showing one embodiment of a first island part (11) and a first bridge part (12) arranged in a display area (DA) of a display device (1) according to the present invention.

[0128] Referring to FIG. 5, the first island section (11) and the first bridge section (12) placed in the display area (DA) may be spaced apart with the first opening (CS1) in between. The first island section (11) includes light-emitting elements (LEDs) and a circuit for driving the light-emitting elements electrically connected thereto, such as a pixel driving circuit (PC), and the first bridge section (12) may include wiring (WL) electrically connected to the pixel driving circuits (PCs) placed in each of the adjacent first island sections (11).

[0129] Looking at the first island portion (11), a buffer layer (111) containing an inorganic insulating material is disposed on the substrate (100), and a pixel driving circuit (PC) may be disposed on the buffer layer (111). An insulating layer (IL) containing 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 insulating layer (IL) and may be electrically connected to the corresponding pixel driving circuit (PC). 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.

[0130] 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 comprising the aforementioned polymer resin. In another embodiment, the substrate (100) may be a multilayer structure comprising a base layer comprising the aforementioned polymer resin and a barrier layer comprising an inorganic insulating material.

[0131] In one embodiment, FIG. 5 illustrates three pixel driving circuits (PCs) arranged in each first island section (11) and three light-emitting elements (LEDs) connected to each pixel driving circuit (PC), but the present invention is not limited thereto. In another embodiment, the number of pixel driving circuits (PCs) and light-emitting elements (LEDs) arranged in the first island section (11) may be one, two, or four or more.

[0132] 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.

[0133] Looking at the first bridge section (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 first bridge section (12), which undergoes relatively more deformation, may not have a layer containing an inorganic insulating material that is prone to cracking, unlike the first island section (11).

[0134] In one embodiment, the substrate (100) corresponding to the first bridge portion (12) may have the same stacked structure as the substrate (100) corresponding to the first island portion (11). In one embodiment, the substrate (100) corresponding to the first bridge portion (12) and the substrate (100) corresponding to the first island portion (11) may be polymer resin layers formed together in the same process. In another embodiment, the substrate (100) corresponding to the first bridge portion (12) may have a different stacked structure than the substrate (100) corresponding to the first island portion (11). In some embodiments, the substrate (100) corresponding to the first bridge portion (12) has 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 first bridge portion (12) may have a structure of a polymer resin layer without a layer containing an inorganic insulating material.

[0135] As previously described, the wiring (WL) of the first 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 (PC) of the first 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 first bridge section (12). In another embodiment, the encapsulation layer (300) may not exist in the first bridge section (12).

[0136] Referring to FIGS. 4a through 4e and FIG. 5, the substrate (100) corresponding to the first island portion (11) and the substrate (100) corresponding to the first bridge portion (12) can be connected to each other. In other words, the plan view shown in FIGS. 4a through 4e 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 first island portion (11) and an area corresponding to the first bridge portion (12), and an opening (100OP1) having the same shape as the first opening (CS1) may be defined in the substrate (100).

[0137] Similarly, the bag layer (300) corresponding to the first island portion (11) and the bag layer (300) corresponding to the first bridge portion (12) may be connected to each other. In one embodiment, the plan view previously shown in FIGS. 4a through 4e may be substantially identical to the plan view of the bag layer (300). In other words, the bag layer (300) may include an area corresponding to the first island portion (11), an area corresponding to the first bridge portion (12), and an opening (300OP1) having the same shape as the first opening (CS1).

[0138] The circuit-light-emitting element layer (200) between the substrate (100) and the encapsulation layer (300) may include a buffer layer (111), a pixel driving circuit (PC), wiring (WL), an insulating layer (IL), and a light-emitting element (LED). Similar to the substrate (100), the plan view previously shown in FIGS. 4a through 4e may be substantially identical to the plan view of the circuit-light-emitting element layer (200). In other words, the circuit-light-emitting element layer (200) may define an opening (200OP1) having the same shape as the first opening (CS1).

[0139] FIGS. 6a to 6c are equivalent circuit diagrams showing an embodiment of a subpixel of a display device (1) according to the present invention.

[0140] Referring to FIG. 6a, 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).

[0141] 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).

[0142] 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).

[0143] 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).

[0144] FIG. 6a illustrates a pixel driving circuit (PC) comprising two transistors and one storage capacitor, but in other embodiments, the pixel driving circuit (PC) may comprise three or more transistors.

[0145] Referring to FIG. 6b, 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).

[0146] 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) and a first voltage line (VDDL).

[0147] 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).

[0148] 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).

[0149] 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).

[0150] 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.

[0151] 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 placed in the previous row of the corresponding pixel driving circuit (PC).

[0152] 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).

[0153] 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).

[0154] 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).

[0155] Referring to FIG. 6c, 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).

[0156] 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).

[0157] 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), such as the storage capacitor (Cst), during the initialization period and the data writing period.

[0158] 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).

[0159] 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).

[0160] 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).

[0161] 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 placed in the previous row of the corresponding pixel driving circuit (PC).

[0162] 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).

[0163] 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).

[0164] 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.

[0165] 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) due to the voltage drop of the first voltage line (VDDL) can be improved.

[0166] 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).

[0167] 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.

[0168] FIG. 7 is a plan view showing an example of a part of the display area (DA, FIG. 3) of a display device (1) according to the present invention. FIG. 7 shows the planar structure of a first island part (11) located in the display area (DA, FIG. 3).

[0169] Referring to FIG. 7, light-emitting elements may be placed in the first island section (11). In one embodiment, FIG. 7 illustrates first to third light-emitting elements (e.g., light-emitting diodes) (230A, 230B, 230C) emitting light of different colors being placed in the first island section (11). One of the first to third light-emitting elements (230A, 230B, 230C) may emit red light, another may emit green light, and the remaining one may emit blue light.

[0170] In one embodiment, FIG. 7 illustrates three light-emitting elements (230) arranged and three first electrode pads (241) corresponding to each light-emitting element (230), but the present invention is not limited thereto. In another embodiment, two or four or more light-emitting elements (230) may be arranged in the first island portion (11), and two or four or more first electrode pads (241) may be arranged. For convenience of explanation, it will be described below that three light-emitting elements (230) are arranged in the first island portion (11).

[0171] Each of the light-emitting elements (230) can be electrically connected to a pixel driving circuit (PC) through a first electrode pad (or first electrode layer, 241). Each of the light-emitting elements (230) can be electrically connected to a second voltage line (VSSL), which is a common voltage line, through a second electrode pad (or second electrode layer, 242).

[0172] The first electrode pads (241) may be spaced apart from each other along one direction, for example, the first direction (e.g., the x direction or the -x direction). Each of the first electrode pads (241) may be electrically connected to the corresponding pixel driving circuit (PC, FIG. 5, FIG. 8) through the first contact hole (CNT1). The second electrode pads (242) may be spaced apart from each other along the first direction (e.g., the x direction or the -x direction) while spaced apart from the first electrode pads (241). Each of the second electrode pads (242) may be electrically connected to the corresponding second voltage line (VSSL, FIG. 6a to 6c) through the second contact hole (CNT2).

[0173] Each of the first electrode pads (241) may include a first portion (241a) that overlaps with a light-emitting element (230), a second portion (241b) that is electrically connected to a pixel driving circuit (PC, FIG. 5, FIG. 8) through the aforementioned first contact hole (CNT1), and a portion (hereinafter, connecting portion, 241n) for connecting the first portion (241a) and the second portion (241b). The width of the connecting portion (241n) (e.g., width in the first direction) may be smaller than the width of the first portion (241a) (e.g., width in the first direction) and / or the width of the second portion (241b) (e.g., width in the first direction). The first part (241a), the second part (241b), and the connecting part (241n) of the first electrode pad (241) can be connected to form a single body.

[0174] In one embodiment, each of the second electrode pads (242) may include a first portion (242a) overlapping with a light-emitting element (230), a second portion (242b) electrically connected to a second voltage line (VSSL, FIG. 6a to 6c) through the aforementioned second contact hole (CNT2), and a connecting portion (242n) for connecting the first portion (242a) and the second portion (242b) of the second electrode pad (242). The width of the connecting portion (242n) of the second electrode pad (242) (e.g., width in the first direction) may be smaller than the width of the first portion (242a) (e.g., width in the first direction) and / or the width of the second portion (242b) (e.g., width in the first direction). The first part (242a), the second part (242b), and the connecting part (242n) of the second electrode pad (242) can be connected to form a single body.

[0175] The first portion (241a) of each of the first electrode pads (241) and the first portion (242a) of each of the second electrode pads (242) may be spaced apart from each other and positioned next to (adjacently). Each of the light-emitting elements (230) may overlap with the first portion (241a) of each of the first electrode pads (241) and the first portion (242a) of each of the second electrode pads (242). Each of the light-emitting elements (230) is electrically connected to the corresponding first electrode pad (241) and second electrode pad (242).

[0176] The conductive pattern (RML) can overlap with the first electrode pads (241). In one embodiment, the conductive pattern (RML) can overlap with the connecting portion (241n) of each of the first electrode pads (241). In one embodiment, the conductive pattern (RML) may have a frame shape when viewed in a planar view. The conductive pattern (RML) can overlap with the second electrode pads (242). The conductive pattern (RML) can overlap with the connecting portion (242n) of each of the second electrode pads (242).

[0177] The conduction pattern (RML) may have a selected voltage level. In one embodiment, the conduction pattern (RML) may have the same voltage level as the second electrode pad (242).

[0178] FIG. 8 is a cross-sectional view of one embodiment of a part (e.g., a first island part (11)) of a display area (DA, FIG. 3) of a display device (1) along the line VIII-VIII' of FIG. 7 according to the present invention.

[0179] A pixel driving circuit (PC) and a light-emitting element (230, e.g., a light-emitting diode) electrically connected to the pixel driving circuit (PC) are disposed on the substrate (100). FIG. 8 illustrates that, as an embodiment, the light-emitting element (230) is a first light-emitting element (230A), but the present invention is not limited thereto. The structure of the second light-emitting element (230B) and the pixel driving circuit (PC), and the structure of the third light-emitting element (230C) and the pixel driving circuit (PC) are substantially the same as the structure shown in FIG. 8.

[0180] The pixel driving circuit (PC) may include transistors and a storage capacitor (Cst) as described with reference to FIGS. 6a to 6c. In one embodiment, FIG. 8 illustrates the first transistor (T1) and the second transistor (T2) among the transistors of the pixel driving circuit (PC) described with reference to FIG. 6a for convenience of explanation. In another embodiment, the transistors of the pixel driving circuit (PC) may include more transistors as shown in FIGS. 6b and 6c.

[0181] The buffer layer (201) is disposed between the substrate (100) and the pixel driving circuit (PC) and can prevent impurities from penetrating into the transistor. The buffer layer (201) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride, and may be a single layer or a multilayer containing the aforementioned inorganic insulating material.

[0182] The first transistor (T1) may include a first semiconductor layer (Act1) and a first gate electrode (GE1). The source region and drain region of the first semiconductor layer (Act1) may be electrically connected to a first source electrode (SE1) and / or a first drain electrode (DE1), respectively. The second transistor (T2) may include a second semiconductor layer (Act2) and a second gate electrode (GE2). The source region and drain region of the second semiconductor layer (Act2) may be electrically connected to a second source electrode (SE2) and / or a second drain electrode (DE2), respectively.

[0183] FIG. 8 illustrates a top gate type in which the first and second gate electrodes (GE1, GE2) are placed on the first and second semiconductor layers (Act1, Act2) with the gate insulating layer (203) in between, but according to another embodiment, the first and second transistors (T1, T2) may be a bottom gate type.

[0184] In one embodiment, the first and second semiconductor layers (Act1, Act2) may include polysilicon. In one embodiment, the first and second semiconductor layers (Act1, Act2) may include amorphous silicon, oxide semiconductor, organic semiconductor, etc. The first and second gate electrodes (GE1, GE2) may include a low-resistance metal material. The first and second gate electrodes (GE1, GE2) may include a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), etc., and may be formed as a multilayer or single layer including the above materials.

[0185] The gate insulating layer (203) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride, and may be a single layer or a multilayer containing the aforementioned material.

[0186] A storage capacitor (Cst) may include a first electrode (CE1) and a second electrode (CE2) that overlap with a first interlayer insulating layer (205) in between. In one embodiment, the storage capacitor (Cst) may overlap with a first transistor (T1). In this regard, FIG. 5 illustrates that the first gate electrode (GE1) of the first transistor (T1) is the first electrode (CE1) of the storage capacitor (Cst). In another embodiment, the storage capacitor (Cst) may not overlap with the first transistor (T1). The storage capacitor (Cst) may be covered by a second interlayer insulating layer (207). The second electrode (CE2) of the storage capacitor (Cst) may include a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), etc., and may be formed as a multilayer or single layer including the above materials.

[0187] The first and second source electrodes (SE1, SE2) and the first and second drain electrodes (DE1, DE2) may be disposed on the same layer, for example, the second interlayer insulating layer (207), and may contain the same material. The first and second source electrodes (SE1, SE2) and the first and second drain electrodes (DE1, DE2) may contain a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), etc., and may be formed as a multilayer or single layer containing the above materials.

[0188] The first interlayer insulating layer (205) and the second interlayer insulating layer (207) may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride, and may be a single layer or a multilayer containing the aforementioned inorganic insulating material. The first and second transistors (T1, T2) and the storage capacitor (Cst) may be covered by the first organic insulating layer (209).

[0189] A second organic insulating layer (211) and a third organic insulating layer (213) may be sequentially disposed on the first organic insulating layer (209). The first organic insulating layer (209), the second organic insulating layer (211), and the third organic insulating layer (213, or referred to as the first insulating layer) may include an organic insulating material. The organic insulating material may include, for example, general-purpose polymers such as polymethylmethacrylate (PMMA) or polystyrene (PS), polymer derivatives having a phenolic group, acrylic polymers, imide polymers, aryl ether polymers, amide polymers, fluorine polymers, p-xylene polymers, vinyl alcohol polymers, and / or combinations thereof.

[0190] The second voltage line (VSSL) may be placed on the second organic insulating layer (211). The first voltage line (VDDL) may be placed on the first organic insulating layer (209). In another embodiment, the first voltage line (VDDL) may be placed on the second organic insulating layer (211).

[0191] The first electrode pad (241) can be placed on the third organic insulating layer (213). The first electrode pad (241) is connected to the second contact metal (CM2) through the first contact hole (CNT1), and the second contact metal (CM2) can be connected to the first contact metal (CM1) through the third contact hole (CNT3).

[0192] FIG. 8 illustrates that the first electrode pad (241) is electrically connected to the first transistor (T1) through the first and second contact metals (CM1, CM2), but the present invention is not limited thereto. As described with reference to FIG. 6b and 6c, the pixel driving circuit (PC) may further include a sixth transistor (T6, FIG. 6b and 6c), in which case the first electrode pad (241) may be electrically connected to the sixth transistor (T6, FIG. 6b and 6c) through the first and second contact metals (CM1, CM2). The sixth transistor (T6, FIG. 6b and 6c) may have substantially the same structure as the first transistor (T1).

[0193] The second electrode pad (242) may be placed on the same layer as the first electrode pad (241), for example, on the third organic insulating layer (213). The second electrode pad (242) may be electrically connected to the second voltage line (VSSL) through the second contact hole (CNT2) as previously described with reference to FIG. 7. In one embodiment, the second electrode pad (242) may be connected to the third contact metal (CM3) through the second contact hole (CNT2), and the third contact metal (CM3) may be connected to the second voltage line (VSSL) through the fourth contact hole (CNT4). In another embodiment, the second electrode pad (242) may be in direct contact with the second voltage line (VSSL) through the second contact hole (CNT2).

[0194] The first electrode pad (241) and the second electrode pad (242) may include a metal and / or a conductive oxide. The first electrode pad (241) and the second electrode pad (242) may include metallic materials such as silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), etc. The first electrode pad (241) and the second electrode pad (242) may include conductive oxides such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), and / or aluminum zinc oxide (AZO). The first electrode pad (241) and the second electrode pad (242) may include the aforementioned metallic materials and / or metallic materials.

[0195] The light-emitting element (230) may be an inorganic light-emitting element. In one embodiment, the light-emitting element (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).

[0196] The first semiconductor layer (231) may include, for example, a p-type semiconductor layer. The p-type semiconductor layer may include or be composed of a semiconductor material having the composition formula InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), for example, GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and may be doped with a p-type dopant such as Mg, Zn, Ca, Sr, Ba, etc.

[0197] The second semiconductor layer (232) may include, for example, an n-type semiconductor layer. The n-type semiconductor layer may include or be composed of a semiconductor material having the composition formula InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), for example, GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and may be doped with an n-type dopant such as Si, Ge, Sn, etc.

[0198] 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) can be formed by including a semiconductor material having a composition formula of, for example, InxAlyGa1-x-yN (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. Additionally, the intermediate layer (233) may include a quantum wire structure or a quantum dot structure.

[0199] FIG. 8 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.

[0200] The first electrode (235) and the second electrode (238) of the light-emitting element (230) can be electrically connected to the first electrode pad (241) and the second electrode pad (242), respectively, through the bump metal (250).

[0201] A light-emitting element (230) can be electrically connected to the first electrode pad (241) and the second electrode pad (242) by placing a bump metal (250) on each of the first electrode pad (241) and the second electrode pad (242), applying a predetermined amount of heat, and then placing the light-emitting element (230) under a predetermined amount of pressure. In one embodiment, the light-emitting element (230) can be electrically connected to the first electrode pad (241) through a first bump metal (250A) between the light-emitting element (230) and the first electrode pad (241). The light-emitting element (230) can be electrically connected to the second electrode pad (242) through a second bump metal (250B) between the light-emitting element (230) and the second electrode pad (242). The bump metal (250) may contain metals such as gold (Au), nickel (Ni), and indium (In).

[0202] A conductive pattern (RML) may be disposed between the substrate (100) and the first electrode pad (241). In one embodiment, the conductive pattern (RML) may be disposed on the second organic insulating layer (211). The conductive pattern (RML) may overlap the connecting portion (241n) of the first electrode pad (241). For example, when the connecting portion (241n) of the first electrode pad (241) is projected along a direction perpendicular to the upper surface of the substrate (100), the entire connecting portion (241n) of the first electrode pad (241) may overlap with the conductive pattern (RML).

[0203] The conductive pattern (RML) can be superimposed on the connection portion (242n) of the second electrode pad (242). In one embodiment, when the connection portion (242n) of the second electrode pad (242) is projected along a direction perpendicular to the upper surface of the substrate (100), the entire connection portion (242n) of the second electrode pad (242) can be superimposed on the conductive pattern (RML).

[0204] The conductive pattern (RML) may include a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu), titanium (Ti), etc., and may be formed as a multilayer or single layer including the above materials. The conductive pattern (RML) may be electrically connected to the second voltage line (VSSL) through the fifth contact hole (CNT5) of the second organic insulating layer (211, or referred to as the second insulating layer), which is an insulating layer between the second voltage line (VSSL) and the conductive pattern (RML). As previously explained with reference to FIGS. 6a to 6c, the second voltage line (VSSL) is electrically connected to the second electrode pad (242), and since the conductive pattern (RML) is electrically connected to the second voltage line (VSSL) through the fifth contact hole (CNT5), the conductive pattern (RML) may have the same voltage level as the second electrode pad (242).

[0205] The conduction pattern (RML) can prevent damage to the pixel driving circuit (PC) caused by the laser used in the repair process described later with reference to FIG. 10a, etc.

[0206] FIG. 9 is a plan view showing an example of a part of the display area (DA, FIG. 3) of a display device (1) according to the present invention. FIG. 9 shows the planar structure of a first island part (11) placed in the display area (DA, FIG. 3).

[0207] The embodiment illustrated in FIG. 9 is substantially identical to the structure described earlier with reference to FIG. 7, except for the planar shape of the conductive pattern (RML) and the second electrode pad (242). The identical configuration is replaced by the description made earlier with reference to FIG. 7, and the following description focuses on the differences.

[0208] The conductive pattern (RML) may have a bar shape. The conductive pattern (RML) may overlap with the connecting portion (241n) of each of the first electrode pads (241), but may not overlap with the second electrode pads (242). Each of the second electrode pads (242) may have the structure described above with reference to FIG. 7, but may have a rectangular shape with a relatively constant width (e.g., width in the first direction) as shown in FIG. 9 in another embodiment. In another embodiment, the second electrode pads (242) may be connected integrally.

[0209] FIG. 10a is a plan view illustrating an embodiment of a repair process for a display device (1) according to the present invention, FIG. 10b is a cross-sectional view showing an embodiment of the structure of a display device (1) by the repair process for a display device (1) according to the present invention, and FIG. 10c is an enlarged view of the Xc portion of FIG. 10b. FIG. 11 is a cross-sectional view showing an embodiment of the structure of a display device (1) by the repair process for a display device (1) according to the present invention.

[0210] In the manufacturing process of the display device (1), the light-emitting elements (230) can be placed by applying a predetermined amount of heat and a predetermined amount of force after placing a bump metal (250, FIG. 8) on the first electrode pad (241) and the second electrode pad (242), respectively, as previously mentioned. In the above-mentioned process of placing the light-emitting elements (230), if a defect in the placement or connection of the light-emitting elements (230) occurs, or if a defect in the operation of the light-emitting elements (230) occurs, a process for repairing it (hereinafter referred to as a repair process) may be required.

[0211] In one embodiment of the present invention, the repair process may include a process (e.g., a cutting process) of separating the first electrode pad (241) into a plurality of parts by irradiating a laser beam (LB) onto a connection portion (241n) of the first electrode pad (241) electrically connected to the defective light-emitting element (230). In one embodiment, if the second light-emitting element (230B) among the light-emitting elements (230) shown in FIG. 10a is defective, a laser beam (LB) may be irradiated onto a connection portion (241n) of the first electrode pad (241) electrically connected to the second light-emitting element (230B).

[0212] As shown in FIG. 10b, the first electrode pad (241) can be separated and spaced apart from each other by the laser beam (LB) by the first part (241a) and the second part (241b) of the first electrode pad (241). Thus, the defective second light-emitting element (230B) can be turned off. Since the width of the connecting part (241n) of the first electrode pad (241) is smaller than the width of the first part (241a) and / or the second part (241b), cutting of the first electrode pad (241) using the aforementioned laser beam (LB) can be easily performed.

[0213] The repair process may include a positive repair process in which a defective light-emitting element (230) is removed and a new light-emitting element (230) is installed, and a negative repair process in which the defective light-emitting element (230) is turned off. In the case of the aforementioned positive repair process, unexpected problems may occur, such as the defective light-emitting element (230) not being completely removed during the process of removing the defective light-emitting element (230), or the defective light-emitting element (230) being moved and connected to another part. However, according to the present invention, a negative repair process can be performed by irradiating a laser beam (LB) as described above to turn off the defective second light-emitting element (230B), thereby preventing problems in the process of removing the defective second light-emitting element (230B).

[0214] In the embodiments of the present invention, since a conductive pattern (RML) is placed below the connection portion (241n) of the first electrode pad (241) to which a laser beam (LB) is irradiated, it is possible to prevent the pixel driving circuit (PC) from being damaged by the laser beam (LB) used in the repair process.

[0215] Depending on the process conditions in the repair process, a concave structure (hereinafter referred to as a concave portion) may be formed in the insulating layer (e.g., the insulating layer between the conductive pattern (RML) and the first electrode pad (241)) disposed below the separation region (241C) of the cut first electrode pad (241). In one embodiment, as shown in FIG. 10c, the third organic insulating layer (213) disposed below the separation region (241C) of the first electrode pad (241) may include a concave portion (213cv). The concave portion (213cv) of the third organic insulating layer (213) may overlap with the conductive pattern (RML) below it, and the bottom surface of the concave portion (213cv) may be spaced apart from the top surface of the conductive pattern (RML).

[0216] In another embodiment, the concave portion (213cv) of the third organic insulating layer (213) described above in the repair process may be extended to the upper surface of the conductive pattern (RML) as shown in FIG. 11.

[0217] In some embodiments, by the heat and energy of the laser beam (LB), the first portion (241a) or the second portion (241b) of the first electrode pad (241) may be melted and may come into direct contact with the upper surface of the conductive pattern (RML) through the concave portion (213cv). In this regard, FIG. 11 illustrates that the first portion (241a) of the first electrode pad (241) is electrically connected to the conductive pattern (RML). The first portion (241a) of the first electrode pad (241), which is electrically connected to a defective light-emitting element (230, e.g., the second light-emitting element (230B)), may be electrically connected to a second voltage line (VSSL) which is at the same voltage level as the second electrode pad (242).

[0218] FIGS. 10a to 10c and FIG. 11 illustrate that a laser beam (LB) is irradiated onto the first electrode pad (241) during the repair process, but the present invention is not limited thereto. As another embodiment, a laser beam (LB) may be irradiated onto the second electrode pad (242) as described later in FIG. 12.

[0219] FIG. 12 is a cross-sectional view schematically showing one embodiment of a display device (1) according to the repair process of a display device (1) according to the present invention.

[0220] During the repair process, a laser beam (LB, FIG. 10a) may be irradiated onto the connection portion (242n, FIG. 10a) of the second electrode pad (242). In this case, the second electrode pad (242) may include a separation area (242C) as shown in FIG. 12. The first portion (242a) and the second portion (242b) of the second electrode pad (242) may be spaced apart and separated from each other with respect to the separation area (242C), and the defective light-emitting element (230) may be in an off state.

[0221] FIG. 13a is a schematic perspective view of an embodiment of an electronic device (1000) including a display device according to the present invention, and FIG. 13b is a schematic block diagram of an electronic device (1000) including a display device (1) according to the present invention.

[0222] Referring to FIG. 13a, 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). In embodiments of the present invention, the electronic device (1000) 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.

[0223] Referring to FIG. 13b, 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). In one embodiment, at least one of the above-described components of the electronic device (1000) may be omitted, or one or more other components may be added. In 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)).

[0224] The processor (1100) can execute software to control at least one other component (e.g., a hardware or software component) of an electronic device (1000) connected to the processor (1100) and can perform various data processing or operations. In 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).

[0225] 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 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).

[0226] 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).

[0227] 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).

[0228] 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).

[0229] 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)).

[0230] 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).

[0231] 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, a jog switch, etc., which are placed on the rear or side of the electronic device (1000). The touch input means may include a touchscreen layer of the display device (1).

[0232] 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 a high definition multimedia interface (HDMI), a universal serial bus (USB) 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).

[0233] 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).

[0234] 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.

[0235] The scan driver (1420) may be placed (e.g., mounted) in the display device (1) as a driving chip. In an optional embodiment, the scan driver (1420) may be formed directly in the display device (1). In one embodiment, 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.

[0236] 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).

[0237] 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).

[0238] The data driver (1430) may be integrated with some components of the auxiliary processor (1120). In one embodiment, the data driver (1430) may be provided as a timing controller embedded driver integrated circuit (Timing controller embedded driver IC) including a controller (1121).

[0239] 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, which may be included in a second input module (1320) to which an external charger that supplies power for charging the battery is connected. In an optional embodiment, the power module (1500) may include a wireless power transceiver so as to be able to charge the battery wirelessly. The wireless power transceiver may include a plurality of coil-shaped antenna radiators. The power module (1500) may include a power management integrated circuit (PMIC). The PMIC supplies optimized power to each of the components of the electronic device (1000).

[0240] 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).

[0241] 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).

[0242] 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.

[0243] The biosensor (1612) 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 (1612) can use an optical method, an ultrasonic method, or a capacitive method.

[0244] 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). In one embodiment, 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).

[0245] 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 the protection of the display device (1), cutting off the voltage for driving the display device (1, e.g., the display panel (1410) of FIG. 13b or the display module (1400) of FIG. 13b), or stopping the stretching operation of the display device (1).

[0246] In one embodiment, at least one of a fingerprint sensor (1611), a biosensor (1612), and a strain sensor (1613) may be embedded in the display device (1). In one embodiment, at least one of a touch sensor (1611), a biosensor (1612), and a strain sensor (1613) may be formed through a process that is continuous with the process of forming a pixel driving circuit and / or a light-emitting element of the display device (1). As a result, the display device (1) may function as one of an input module (1300) providing an input interface between the electronic device (1000) and the user, and may also function as a display module (1400) providing an output interface between the electronic device (1000) and the user.

[0247] In one embodiment, at least two of the touch sensor (1611), biosensor (1612), and strain sensor (1613) can 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.

[0248] 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.

[0249] 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 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 tone, message reception tone, 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).

[0250] 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.

[0251] The light module (1720) may output a signal to indicate the occurrence of an event by the light of a light source or provide light for image acquisition. Here, examples of event occurrence 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 notification. 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.

[0252] 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), Ultra Wideband (UWB), 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.

[0253] FIGS. 14a to 14I are schematic perspective views illustrating embodiments of an electronic device including a display device according to the present invention.

[0254] Referring to FIG. 14a, in one embodiment of the present invention, a display device may 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 portion (3110) and a display portion (3120) provided in the body portion (3110). In embodiments, the display device may be utilized as the display portion (3120) of the wearable electronic device (1000A). As illustrated in FIG. 14a, the wearable electronic device (1000A) may be modified. In one embodiment, it may be used as a smart watch or a smartphone depending on the user's choice.

[0255] FIG. 14b 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). In embodiments of the present invention, a display device 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.

[0256] FIG. 14c illustrates an educational electronic device (1000C). In one embodiment, the educational electronic device may include a display unit (3320) provided within a housing (3310). The display unit (3320) may utilize a display device of the 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 units, 3330) arranged on the back of the display unit (3320) so that the display unit (3320) extends in the height direction. The pins (3330) can be implemented to move along a third direction (e.g., z direction or -z direction) so that the image displayed on the display unit (3320) has a three-dimensional height. FIG. 14c describes an educational electronic device (1000C), but its use is not limited as long as it provides a certain image information.

[0257] FIGS. 14d and FIGS. 14e illustrate that a display device is used in a wearable electronic device (1000D-1, 1000D-2), such as a smart watch.

[0258] In one embodiment, as illustrated in FIG. 14d, 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 means of 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 integral with the housing (3314).

[0259] The electronic device (1000D-2) of FIG. 14e may include a body part (3310) as in FIG. 14d 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.

[0260] FIG. 14f illustrates an embodiment of another electronic device (1000E) of the present invention including a robot. The robot can move or recognize objects using a camera module (3470) and can display a predetermined image to a user through a display unit (3420, 3430).

[0261] As some embodiments, in one embodiment of the present invention, the display devices can be assembled to a body frame having a hemispherical shape as they can be extended in various directions as described above, and thus the robot may include a hemispherical display unit (3420, 3430).

[0262] FIG. 14ga illustrates an embodiment of a vehicle display device (1000F) as an electronic device according to the present invention, and FIG. 14gb is an enlarged view of a part of FIG. 14ga. The vehicle display device (1000F) may include a cluster (3510), a Center Information Display (CID) (3520), and / or a co-driver display (3530). In the embodiment of the present invention, since the display device 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.

[0263] FIG. 14ga illustrates the cluster (3510), the Center Information Display (CID) (3520), and / or the co-driver display (3530) as separate, 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 integrated.

[0264] 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. 14gg, 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.

[0265] FIG. 14h illustrates that in one embodiment of the present invention, the electronic device is an electronic device for advertising or display (1000G). In some embodiments, the electronic device for advertising or display (1000G) 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. 14h, the electronic device for advertising or display (1000G) may also be placed along the uneven surface of the structure (3610). In some embodiments, the electronic device for advertising or display (1000G) may be installed on the structure (3610) using a heat-shrink film or the like.

[0266] FIG. 14i illustrates that in one embodiment of the present invention, an electronic device (1000H) is a controller. The controller may include an image-type button. In one embodiment, 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).

[0267] The present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

Claims

1. Substrate; A first electrode pad and a second electrode pad spaced apart from each other on the substrate; A first light-emitting element disposed on the first electrode pad and the second electrode pad, and electrically connected to the first electrode pad and the second electrode pad; A conductive pattern between the substrate and the first electrode pad; It includes a first insulating layer between the above-mentioned conductive pattern and the above-mentioned first electrode pad, and A display device in which a portion of the first electrode pad overlaps with the conductive pattern, and the width of the portion of the first electrode pad is smaller than the width of the first portion of the first electrode pad that overlaps with the first light-emitting element.

2. In Paragraph 1, A display device having the same voltage level as the voltage level of the second electrode pad, the above-mentioned challenge pattern.

3. In Paragraph 2, A common voltage line disposed on the substrate and electrically connected to the second electrode pad; and It further includes a second insulating layer between the common voltage line and the conductive pattern; A display device in which the above common voltage line is electrically connected to the conductive pattern through a contact hole defined in the second insulating layer.

4. In Paragraph 1, A display device in which a portion of the second electrode pad overlaps with the conductive pattern, and the width of the portion of the second electrode pad is smaller than the width of the first portion of the second electrode pad that overlaps with the first light-emitting element.

5. In Paragraph 1, A transistor disposed on the above substrate; Another first electrode pad next to the first electrode pad above; Another second electrode pad spaced apart from the other first electrode pad mentioned above; The apparatus further comprises a second light-emitting element disposed on the other first electrode pad and the other second electrode pad, and electrically connected to the other first electrode pad and the other second electrode pad. The other first electrode pad mentioned above is, A first portion overlapping with the second light-emitting element; and A second part electrically connected to the above transistor; comprising, A display device in which the first part and the second part of the other first electrode pad are separated from each other.

6. In Paragraph 5, A display device in which the second light-emitting element is in an off state.

7. In Paragraph 6, A display device in which a portion of the first insulating layer corresponding to the separation region between the first portion and the second portion of the other first electrode pad includes a concave portion.

8. In Paragraph 7, A display device in which the bottom surface of the above-mentioned concave portion is spaced apart from the upper surface of the above-mentioned conductive pattern.

9. In Paragraph 7, A display device in which the above-mentioned concave portion extends to the upper surface of the above-mentioned conductive pattern, and the first portion or the second portion of the other first electrode pad is in direct contact with the upper surface of the above-mentioned conductive pattern.

10. A method for repairing a display device, wherein the display device comprises: a transistor on a substrate; a first electrode pad electrically connected to the transistor; a second electrode pad spaced apart from the first electrode pad; a light-emitting element disposed on the first electrode pad and the second electrode pad and electrically connected to the first electrode pad and the second electrode pad; a conductive pattern between the substrate and the first electrode pad; and a first insulating layer between the conductive pattern and the first electrode pad. The above repair method is, A method for repairing a display device, comprising a process of irradiating a portion of a first electrode pad with a laser so that a first portion of the first electrode pad electrically connected to the light-emitting element and a second portion of the first electrode pad electrically connected to the transistor are separated.

11. In Paragraph 10, A repair method in which the width of the portion of the first electrode pad where the laser is irradiated is smaller than the width of the first portion of the first electrode pad.

12. In Paragraph 10, A repair method for a display device in which, in the process of irradiating the laser, the portion of the first electrode pad overlaps with the conductive pattern.

13. In Paragraph 10, A repair method for a display device in which, in the process of irradiating the laser, the width of the part of the first electrode pad is smaller than the width of the first part or the width of the second part of the first electrode pad.

14. In Paragraph 10, A repair method for a display device, wherein the challenge pattern has a voltage level identical to the voltage level of the second electrode pad.

15. An electronic device including a display device, wherein the display device is, A first electrode pad and a second electrode pad spaced apart from each other on a substrate; A first light-emitting element disposed on the first electrode pad and the second electrode pad, and electrically connected to the first electrode pad and the second electrode pad; A conductive pattern between the substrate and the first electrode pad; It includes a first insulating layer between the above-mentioned conductive pattern and the above-mentioned first electrode pad, and An electronic device in which the width of a portion of the first electrode pad is smaller than the width of a first portion of the first electrode pad that overlaps with the first light-emitting element.

16. In Paragraph 15, The above-mentioned challenge pattern is an electronic device having a voltage level identical to the voltage level of the second electrode pad.

17. In Paragraph 16, The above display device is, A common voltage line disposed on the substrate and electrically connected to the second electrode pad; and It further includes a second insulating layer between the common voltage line and the conductive pattern; An electronic device in which the above common voltage line is electrically connected to the conductive pattern through a contact hole defined in the second insulating layer.

18. In Paragraph 15, An electronic device in which the above-mentioned portion of the first electrode pad overlaps with the above-mentioned conductive pattern.

19. In Paragraph 15, The above display device is, A transistor disposed on the above substrate; Another first electrode pad next to the first electrode pad above; Another second electrode pad spaced apart from the other first electrode pad mentioned above; The apparatus further comprises a second light-emitting element disposed on the other first electrode pad and the other second electrode pad, and electrically connected to the other first electrode pad and the other second electrode pad. The other first electrode pad mentioned above is, A first portion overlapping with the second light-emitting element; and A second part electrically connected to the above transistor; comprising, An electronic device in which the first part and the second part of the other first electrode pad are separated from each other.

20. In Paragraph 19, An electronic device in which a portion of the first insulating layer corresponding to the separation region between the first portion and the second portion of the other first electrode pad includes a concave portion.

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