Display device

Abstract

A display device includes a display area and a non-display area outside the display area, the display device including: first island portions disposed in the display area, the first island portions being spaced apart from each other in a row direction and a column direction; first bridge portions respectively connecting two adjacent first island portions among the first island portions; second island portions disposed in the non-display area, the second island portions being spaced apart from each other; and a second bridge portion respectively connecting two adjacent second island portions among the second island portions. A first width of each of the first island portions is smaller than a second width of each of the second island portions, and one of the second island portions corresponds to a first island portion in an i-th row among the first island portions and a first island portion in an i + 1-th row among the first island portions. Here, i is a positive integer.

Description

[0001] This application claims priority to Korean Patent Application No. 10-2023-0108550 filed on August 18, 2023, and all benefits derived therefrom, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0002] Embodiments relate to a display device such as a flexible display device. Background Art

[0003] With the development of display devices that visually display various electrical signals, various display devices having excellent characteristics such as thinness, light weight, and low power consumption are being introduced. As an example, flexible display devices that can be folded or rolled into a roll are being developed. Recently, research and development of display devices of various structures such as retractable display devices that can be changed into various shapes are being actively conducted. Summary of the invention

[0004] Embodiments relate to a display device such as a flexible display device.

[0005] Additional features will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the presented embodiments of the disclosure.

[0006] In an embodiment of the present disclosure, a display device including a display area and a non-display area outside the display area includes: a first island portion, arranged in the display area, the first island portions are spaced apart from each other in a row direction and a column direction; a first bridge portion, respectively connecting two adjacent first island portions among the first island portions; a second island portion, arranged in the non-display area, the second island portions are spaced apart from each other; and a second bridge portion, respectively connecting two adjacent second island portions among the second island portions, wherein a first width of each first island portion among the first island portions is smaller than a second width of each second island portion among the second island portions, and a second island portion among the second island portions corresponds to a first island portion in an i-th row among the first island portions and a first island portion in an i+1-th row among the first island portions, wherein i is a positive integer.

[0007] In an embodiment of the present disclosure, a display device including a display area and a non-display area outside the display area includes: a first island portion, arranged in the display area, the first island portions are spaced apart from each other in a row direction and a column direction; a first bridge portion, respectively connecting two adjacent first island portions among the first island portions; a second island portion, arranged in the non-display area, the second island portions are spaced apart from each other; and a second bridge portion, respectively connecting two adjacent second island portions among the second island portions, wherein a shape of each of the second bridge portions is different from a shape of each of the first bridge portions among the first bridge portions.

[0008] In an embodiment, the one of the second island portions may be connected to the first island portion in the i-th row and the first island portion in the (i+1)-th row through the third bridge portion.

[0009] In an embodiment, the elongation of the non-display area may be less than that of the display area. The non-display area may include: a first sub-non-display area, the second island portion and the second bridge portion are arranged in the first non-display area; and a second sub-non-display area, disposed between the first sub-non-display area and the display area, wherein the third bridge portion is arranged in the second sub-non-display area, and the elongation of the first sub-non-display area may be different from that of the second sub-non-display area.

[0010] In an embodiment, the elongation of the second sub non-display area may be smaller than the elongation of the first sub non-display area and the elongation of the display area.

[0011] In an embodiment, the elongation rate of the second sub non-display area may be greater than the elongation rate of the first sub non-display area and less than the elongation rate of the display area.

[0012] In an embodiment, each of the first bridge portions can be arranged between two adjacent first island portions that are adjacent to each other among the first island portions, each of the second bridge portions can be arranged between two adjacent second island portions that are adjacent to each other among the second island portions, and the first distance between the two adjacent first island portions that are adjacent to each other can be smaller than the second distance between the two adjacent second island portions that are adjacent to each other.

[0013] In an embodiment, a ratio of the first distance to a first width of each of the first island portions may be greater than a ratio of the second distance to a second width of each of the second island portions.

[0014] In an embodiment, a width of each of the first bridge portions may be smaller than a width of each of the second bridge portions.

[0015] In an embodiment, each of the first bridge portion and the second bridge portion may have a serpentine shape.

[0016] In an embodiment, each of the first bridge portions may include: two first rounded portions; and a straight portion between the two first rounded portions.

[0017] In an embodiment, the straight portion of each of the first bridge portions may be inclined with respect to a side of an adjacent first island portion that is adjacent to the straight portion among the first island portions.

[0018] In an embodiment, each of the two first rounded portions may have an arc shape having a first central angle, and the first central angle may be a reflex angle.

[0019] In an embodiment, each of the first bridge portions may further include two second rounded portions respectively connected to the two first rounded portions.

[0020] In an embodiment, each of the two second rounded portions may have an arc shape having a second central angle, and the second central angle may be smaller than the first central angle.

[0021] In an embodiment, each of the two first rounded portions of each of the first bridge portions may include an inner edge and an outer edge, and the inner edge may have an irregular change.

[0022] In an embodiment, each of the second bridge portions may have a shape different from a shape of each of the first bridge portions.

[0023] In an embodiment, each of the second bridge portions may include: two first rounded portions; a first straight portion between the two first rounded portions; two second straight portions respectively connected to the two first rounded portions; and two second rounded portions respectively connected to the two second straight portions.

[0024] In an embodiment, the length of the first straight portion of each of the second bridge portions may be greater than the length of each of the two second straight portions.

[0025] In an embodiment, each of the above-mentioned two first chamfered portions of each of the second bridge portions in the second bridge portions may have an arc shape having a first central angle, and each of the above-mentioned two second chamfered portions of each of the second bridge portions in the second bridge portions may have an arc shape having a second central angle, wherein the first central angle may be greater than the second central angle.

[0026] In an embodiment, each of the first island portions may include an inorganic insulating layer including an inorganic insulating material, and an edge of the inorganic insulating layer may be spaced apart from an edge of each of the first island portions.

[0027] In an embodiment, the display device may further include a substrate beneath the inorganic insulating layer, wherein the substrate may include a base layer and a barrier layer, the base layer may include a polymer resin, the barrier layer may be disposed on the base layer and may include an inorganic insulating material, and an edge of the barrier layer may be spaced apart from an edge of each of the first island portions.

[0028] In an embodiment, the inorganic insulating layer and the barrier layer of the substrate may form a step difference.

[0029] In an embodiment, the display device may further include an organic material layer covering an edge of the barrier layer and an edge of the inorganic insulating layer and overlapping the step difference.

[0030] In an embodiment, each of the first island portions may include: a transistor; and a light emitting diode electrically connected to the transistor, wherein a portion of a wiring electrically connected to the transistor of one of the first island portions may be disposed on a first bridge portion among the first bridge portions connected to the above-mentioned one of the first island portions, and a first separation distance between an inner edge of the first bridge portion and the wiring may be greater than a second separation distance between an outer edge of the first bridge portion and the wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other features and advantages of illustrative embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0032] Figure 1 is a perspective view of an embodiment of a display device;

[0033] Figure 2A and Figure 2B They are shown respectively Figure 1 A perspective view of a state where the display device is stretched in a first direction;

[0034] Figure 2C It shows that Figure 1 A perspective view of a state where the display device is stretched in a second direction;

[0035] Figure 2D It shows that Figure 1 A perspective view of a state where the display device is stretched in a first direction and a second direction;

[0036] Figure 2E It shows that Figure 1 A perspective view of a state where the display device is stretched in a third direction;

[0037] Figure 3 is a schematic plan view of an embodiment of a display device;

[0038] Figure 4A As part of the display device Figure 3 An enlarged plan view of an embodiment of region IV;

[0039] Figure 4B As part of the display device Figure 3 An enlarged plan view of an embodiment of region IV;

[0040] Figure 4C As part of the display device Figure 3 An enlarged plan view of an embodiment of region IV;

[0041] Figure 5 is a schematic cross-sectional view of an embodiment of a first island portion and a first bridge portion arranged in a display region of a display device;

[0042] FIG. 6A to FIG. 6C are equivalent circuit diagrams of embodiments of sub-pixels of a display device;

[0043] Fig. 7A and Figure 7B Schematic cross-sectional views of embodiments of a light emitting element of a display device;

[0044] Figure 8 is a schematic plan view of an embodiment of a portion of a display device;

[0045] Fig. 9 is included in Figure 8 An extracted plan view of a first bridge portion in a display area;

[0046] Fig.10 Is set in Figure 8 an extracted plan view of a portion of a display area;

[0047] Fig.11 Is set in Figure 8 an extracted plan view of a second bridge portion in a non-display area;

[0048] Fig.12 is an extracted plan view of an embodiment of a display area of ​​a display device;

[0049] Fig.13A is an extracted plan view of an embodiment of a display area of ​​a display device;

[0050] Fig. 13B is a schematic plan view of an embodiment of a first rounded portion of a first bridge portion of a display device;

[0051] Fig.14 is an enlarged plan view of an embodiment of a first island portion of a display device;

[0052] Fig.15 It is along Fig.14 The line XV-XV' intercepts Fig.14 a cross-sectional view of a first island portion;

[0053] Fig.16A and Fig. 16B are plan views of embodiments of the configuration of wiring on the first bridge portion of the display device; and

[0054] FIG. 17A to FIG. 17G Each of them is a perspective view of an embodiment of an electronic device including a display device. DETAILED DESCRIPTION

[0055] The embodiments of the invention will now be described in detail with reference to the examples shown in the accompanying drawings, wherein the same reference numerals refer to the same elements throughout. In this regard, the embodiments described may have different forms and should not be construed as being limited to the descriptions set forth herein. Accordingly, the embodiments are described below with reference to the accompanying drawings only to explain the various aspects of the description. As used herein, the term "and / or" includes any and all combinations of one or more of the related listed items. Throughout this disclosure, the expression "at least one of a, b, and c" means only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.

[0056] Since the present disclosure allows various changes and numerous embodiments, illustrative embodiments will be shown in the drawings and described in the written description. The effects and features of the present disclosure and methods for achieving them will be explained with reference to the embodiments described in detail below with reference to the drawings. However, the present disclosure is not limited to the following embodiments and can be embodied in various forms.

[0057] Hereinafter, embodiments will be described with reference to the accompanying drawings, wherein like reference numerals refer to like elements throughout and their repeated descriptions are omitted.

[0058] Although terms such as "first" and "second" may be used to describe various elements, these elements are not necessarily limited to the above terms. The above terms are used to distinguish one element from another.

[0059] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0060] It will be understood that, as used herein, the terms “comprising,” “including,” “containing,” and / or “having” specify the presence of stated features or elements, but do not preclude the presence or addition of one or more other features or elements.

[0061] It will be further understood that when a layer, region or element is referred to as being “on” another layer, region or element, it can be directly or indirectly on the other layer, region or element. That is, for example, intervening layers, regions or elements may be present.

[0062] For convenience of explanation, the size of the elements in the drawings may be exaggerated or reduced. As an example, for convenience of description, the size and thickness of each element shown in the drawings are arbitrarily represented, and therefore, the present disclosure is not necessarily limited thereto.

[0063] Where the illustrative embodiments may be implemented differently, a particular process sequence may be performed in a different order than that described. As an example, two processes described in succession may be performed substantially simultaneously, or may be performed in a reverse order.

[0064] It will be understood that when a layer, region, or element is referred to as being "connected" to another layer, region, or element, the layer, region, or element may be "directly connected" to the other layer, region, or element, or the layer, region, or element may be "indirectly connected" to the other layer, region, or element, with intervening layers, regions, or elements interposed therebetween. For example, it will be understood that when a layer, region, or element is referred to as being "electrically connected" to another layer, region, or element, the layer, region, or element may be "directly electrically connected" to the other layer, region, or element, or the layer, region, or element may be "indirectly electrically connected" to the other layer, region, or element, with intervening layers, regions, or elements interposed therebetween.

[0065] The ±x direction, ±y direction, and ±z direction are not limited to directions corresponding to the three axes of the rectangular coordinate system and can be interpreted in a broader sense. For example, the ±x direction, ±y direction, and ±z direction can be perpendicular to each other, or can represent different directions that are not perpendicular to each other.

[0066] As used herein, "about" or "approximately" includes the stated value and means within an acceptable range of deviation for that particular value as determined by one of ordinary skill in the art, taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, the term "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5% of the stated value.

[0067] Unless otherwise defined, all terms (including technical and scientific terms) used in this article have the same meaning as those commonly understood by ordinary technicians in the field to which the present disclosure belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and the present disclosure, and unless explicitly defined as such in this article, these terms will not be interpreted in an idealized or overly formal sense.

[0068] Figure 1 is a perspective view of an embodiment of the display device 1 . Figure 2A and Figure 2B They are shown respectively Figure 1 A perspective view of a state where the display device 1 is stretched in a first direction. Figure 2C It shows that Figure 1 A perspective view of a state where the display device 1 is stretched in the second direction. Figure 2D It shows that Figure 1 A perspective view of a state where the display device 1 is stretched in a first direction and a second direction. Figure 2E It shows that Figure 1 A perspective view of a state where the display device 1 is stretched in a third direction.

[0069] refer to Figure 1 , the 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 display a preset image by light emitted from the plurality of pixels. The non-display area NDA may be disposed outside the display area DA. The non-display area NDA is an area in which pixels are not arranged, and may surround the entire display area DA.

[0070] The display device 1 may be stretched or shrunk in different directions. The display device 1 may be stretched in a first direction (eg, x direction and / or -x direction) by an external force applied by an external object or a user. Figure 2A and Figure 2B As shown in , the display area DA and / or the non-display area NDA of the display device 1 may be stretched in a first direction (eg, x direction and / or -x direction). Figure 2A As shown in FIG. 1 , the display area DA and / or the non-display area NDA may be stretched in the x direction and the −x direction, or as shown in FIG. Figure 2B As shown in , the display area DA and / or the non-display area NDA may be stretched in the x-direction, wherein one side of the display device 1 is fixed.

[0071] Due to an external force applied by an external object or a user, the display device 1 may be stretched in the second direction (eg, the y direction and / or the −y direction). Figure 2C As shown in , the display area DA and / or the non-display area NDA of the display device 1 can be stretched in the y direction and the -y direction. In another embodiment, the display area DA and / or the non-display area NDA can be stretched in the y direction or the -y direction, wherein one side of the display device 1 is fixed.

[0072] For example, due to an external force applied by an external object or a part of a human body, the display device 1 may be stretched in a first direction (eg, x direction and / or −x direction) and a second direction (eg, y direction and / or −y direction). Figure 2D As shown in , the display area DA and / or the non-display area NDA of the display device 1 may be stretched in the ±x direction and the ±y direction.

[0073] Due to an external force applied by an external object or a part of a human body, the display device 1 may be stretched in a third direction (eg, z direction and / or -z direction). Figure 2E , a portion of the display device 1 (e.g., a portion of the display area DA) protrudes in the z direction. In another embodiment, a portion of the display device 1 (e.g., a portion of the display area DA) may protrude in the -z direction (or may be recessed in the z direction).

[0074] Despite FIG. 2A to FIG. 2E , the display device 1 is shown to be stretched in the first direction, the second direction and / or the third direction, but the present disclosure is not limited thereto. In another embodiment, the display device 1 may be deformed into various shapes (eg, bent or twisted along two or more axes).

[0075] Figure 3 is a schematic plan view of an embodiment of the display device 1 .

[0076] A plurality of pixels may be arranged in a display area DA of the display device 1. Each pixel may include a sub-pixel that emits light of a different color. A light emitting element corresponding to each sub-pixel may be provided in the display area DA. A circuit may be provided in a non-display area NDA surrounding the display area DA. The circuit provides electrical signals to the light emitting elements arranged in the display area DA and transistors electrically connected to the light emitting elements. The gate drive circuit GDC may be respectively arranged in a first non-display area NDA1 and a second non-display area NDA2 that are respectively arranged on two opposite sides, wherein the display area DA is between the first non-display area NDA1 and the second non-display area NDA2. The gate drive circuit GDC may include a driver that provides electrical signals to the gate electrode of each of the transistors electrically connected to the light emitting element. Although in Figure 3 , the gate driving circuit GDC is respectively arranged in the first non-display area NDA1 and the second non-display area NDA2, but the present disclosure is not limited thereto. In another embodiment, the gate driving circuit GDC may be provided in one of the first non-display area NDA1 and the second non-display area NDA2.

[0077] The data driving circuit DDC may be disposed in the third non-display area NDA3 and / or the fourth non-display area NDA4 each extending to the first non-display area NDA1 and the second non-display area NDA2. Figure 3 2 shows that the data driving circuit DDC is disposed in the fourth non-display area NDA4. In another embodiment, the data driving circuit DDC may be disposed in the third non-display area NDA3 and the fourth non-display area NDA4, respectively.

[0078] Despite Figure 3 2 shows that the data driving circuit DDC is disposed in the fourth non-display area NDA4 of the display device 1, but the present disclosure 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) disposed in the fourth non-display area NDA4, and the data driving circuit DDC may be disposed on the flexible circuit board.

[0079] In an embodiment, the elongation of the non-display area NDA may be less than or equal to the elongation of the display area DA. In an embodiment, the elongation of the non-display area NDA may be different for each of its regions. In an embodiment, although 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 as each other, 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. "Elongation (or strain)" may represent a change in length (ΔL / L) of a display device due to an external force when the display device is not physically damaged (elongation (or strain) = ΔL / L). Here, ΔL is a change in the length of the display device, and L represents the initial length of the display device.

[0080] Figure 4A As a part of the display device 1 Figure 3 An enlarged plan view of an embodiment of Zone IV.

[0081] refer to Figure 4A , in the display area DA, the display device 1 may include a first island portion 11 and a first bridge portion 12. The first island portions 11 are 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), and the first bridge portion 12 connects adjacent first island portions 11. In the present disclosure, expressions such as adjacent first island portions 11 may mean that the adjacent first island portions 11 are immediately adjacent to each other.

[0082] Each first island portion 11 may be connected to a plurality of first bridge portions 12. In an embodiment, each first island portion 11 may be connected to four first bridge portions 12. Two first bridge portions 12 may be respectively arranged at two opposite sides of the first island portion 11 in a first direction (e.g., x direction or -x direction), and the remaining two first bridge portions 12 may be respectively arranged at two opposite sides of the first island portion 11 in a second direction (e.g., y direction or -y direction). In an embodiment, four first bridge portions 12 may be respectively connected to four sides of the first island portion 11. The four first bridge portions 12 may be respectively adjacent to corresponding corners of the first island portion 11.

[0083] The first bridge portions 12 may be spaced apart from each other by first openings CS1 defined between the first bridge portions 12. In an embodiment, first openings CS1 having an approximately H shape in a first direction (e.g., x direction or -x direction) and a second direction (e.g., y direction or -y direction) and first openings CS1 having an approximately I shape rotated 90° from the H shape may be repeatedly and alternately defined. Both opposite ends of each first bridge portion 12 may be connected to adjacent first island portions 11, respectively, and one side of each first bridge portion 12 may be spaced apart from one side of an adjacent first island portion 11 and / or another side of an adjacent first island portion 11 by the first opening CS1.

[0084] In non-display areas (for example, Figure 4A In the first non-display area NDA1 shown in FIG. 1 , the display device 1 may include second island portions 21 spaced apart from each other and a second bridge portion 22 connecting adjacent second island portions 21 .

[0085] Each of the second island portions 21 may extend in a first direction (e.g., the x direction or the −x direction). The second island portions 21 may be spaced apart from each other in a second direction (e.g., the y direction or the −y direction) intersecting the first direction (e.g., the x direction or the −x direction). Each of the second island portions 21 may include a reference Figure 3 A gate driving circuit GDC driver is described.

[0086] The second bridge portion 22 may have a serpentine shape. The length of the second bridge portion 22 may be greater than the longest distance between adjacent second island portions 21 in the second direction (e.g., y direction or -y direction). In an embodiment, the second bridge portion 22 may have an approximately omega (Ω) shape protruding in the first direction (e.g., x direction or -x direction). The second bridge portion 22 may be arranged between adjacent second island portions 21 and may be spaced apart from each other.

[0087] The second bridge portions 22 between adjacent second island portions 21 may be spaced apart from each other by the second openings CS2. Between adjacent second island portions 21, the second openings CS2 and the second bridge portions 22 may be alternately arranged in a first direction (e.g., x direction or -x direction). The second openings CS2 may have the same shape. The two opposite ends of each second bridge portion 22 may extend to adjacent second island portions 21, respectively, and one side of each second bridge portion 22 may be spaced apart from one side of the adjacent second island portion 21 and / or another side of the adjacent second bridge portion 22 by the second openings CS2.

[0088] One second island portion 21 disposed in the first non-display area NDA1 may correspond to the first island portions 11 arranged in a plurality of rows in the display area DA. In an embodiment, one second island portion 21 disposed in the first non-display area NDA1 may correspond to the first island portion 11 in the i-th row and the first island portion 11 in the i+1-th row in the display area DA (here, i is an integer greater than 0). Figure 4A , one second island portion 21 corresponds to two rows of first island portions 11, but the present disclosure is not limited thereto. In another embodiment, one second island portion 21 disposed in the first non-display area NDA1 may correspond to n rows of first island portions 11 arranged in the display area DA (here, n is an integer greater than or equal to 3).

[0089] The non-display area (e.g., the first non-display area NDA1) may include a first sub-non-display area SNDA1 in which the second island portion 21 and the second bridge portion 22 are arranged, and a second sub-non-display area SNDA2 between the first sub-non-display area SNDA1 and the display area DA. The third bridge portion 23 may be arranged in the second sub-non-display area SNDA2. The third bridge portion 23 connects the display area DA to the first sub-non-display area SNDA1. One end of the third bridge portion 23 may extend to the second island portion 21 and / or the second bridge portion 22, and the opposite end of the third bridge portion 23 may be connected to the first island portion 11 and / or the first bridge portion 12.

[0090] The third bridge portion 23 may have a serpentine shape. In an embodiment, the shape of the third bridge portion 23 may be different from the shape of each of the first bridge portion 12 and the second bridge portion 22. In an embodiment, as shown in FIG. Figure 4AAs shown in , the third bridge portion 23 may have an approximately omega (Ω) shape that is raised in the second direction (e.g., the y direction or the -y direction). The third bridge portion 23 may have a structure that is symmetrical to each other, so that one of the adjacent third bridge portions 23 arranged in the second direction (e.g., the y direction or the -y direction) is raised in the y direction and the other of the adjacent third bridge portions 23 is raised in the -y direction. A structure in which the third opening CS3 and the fourth opening CS4 of different shapes are repeated may be provided between the third bridge portions 23. The width of the third bridge portion 23 may be different from the width of the first bridge portion 12 and the width of the second bridge portion 22. In an embodiment, the width of the third bridge portion 23 may be greater than the width of the first bridge portion 12, and may be less than the width of the second bridge portion 22.

[0091] exist Figure 4A 2 shows that the second island portion 21 and the second bridge portion 22 in the non-display area (e.g., the first non-display area NDA1) have shapes different from those of the first island portion 11 and the first bridge portion 12 in the display area DA, respectively. In another embodiment, the second island portion 21 and the second bridge portion 22 in the non-display area (e.g., the first non-display area NDA1) may have the same shape as those of the first island portion 11 and the first bridge portion 12 in the display area DA.

[0092] Figure 4B As a part of the display device 1 Figure 3 An enlarged plan view of an embodiment of Zone IV.

[0093] refer to Figure 4B , the display device 1 includes first island portions 11 and first bridge portions 12 spaced apart from each other in the display area DA. The first bridge portions 12 are spaced apart from each other by the first openings CS1 and connect adjacent first island portions 11. Figure 4B The structure of the display area DA in the above reference Figure 4A The structure of the display area DA described is the same.

[0094] The display device 1 may include a second island portion 21 and a second bridge portion 22 disposed in a non-display area (eg, a first non-display area NDA1). In an embodiment, the second island portion 21 and the second bridge portion 22 may have substantially the same shapes as the first island portion 11 and the first bridge portion 12, respectively.

[0095] In the non-display area (e.g., the first non-display area NDA1), the second island portions 21 may be spaced apart from each other in a first direction (e.g., the x direction or the −x direction) and a second direction (e.g., the y direction or the −y direction). Each of the second bridge portions 22 may connect adjacent second island portions 21. The second bridge portions 22 may be spaced apart from each other by second openings CS2 defined between the second bridge portions 22.

[0096] The second opening CS2 may have a shape substantially the same as that of the first opening CS1. In an embodiment, a second opening CS2 having an approximately H shape and a second opening CS2 having an approximately I shape may be alternately and repeatedly defined in the non-display area (e.g., the first non-display area NDA1). Both opposite ends of each second bridge portion 22 may be connected to the adjacent second island portion 21, respectively, and one side of each second bridge portion 22 may be spaced apart from one side adjacent to the second island portion 21 and / or another side adjacent to the second bridge portion 22 by the second opening CS2.

[0097] Each second island portion 21 may extend to four second bridge portions 22. Each second island portion 21 may include a reference Figure 3 A gate driving circuit GDC driver is described.

[0098] The second island portions 21 arranged in a row in the first non-display area NDA1 may correspond to the first island portions 11 arranged in a row in the display area DA. In an embodiment, the second island portions 21 arranged in the i-th row in the first direction (e.g., the x direction or the −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 (here, i is an integer greater than 0).

[0099] The display device 1 may include a third bridge portion 23 arranged in the second sub non-display area SNDA2. The third bridge portion 23 connects the display area DA to the first sub non-display area SNDA1. The non-display area (e.g., the first non-display area NDA1) may include a first sub non-display area SNDA1 in which the second island portion 21 and the second bridge portion 22 are arranged, and a second sub non-display area SNDA2 including the third bridge portion 23 and disposed between the first sub non-display area SNDA1 and the display area DA. The shape of the third bridge portion 23 may be substantially the same as that of the first bridge portion 12 and the second bridge portion 22. In an embodiment, the width of the third bridge portion 23 may be the same as that of the first bridge portion 12 and the second bridge portion 22.

[0100] Figure 4C As a part of the display device 1 Figure 3An enlarged plan view of an embodiment of Zone IV.

[0101] refer to Figure 4C In the display area DA, the display device 1 may include a first island portion 11 and a first bridge portion 12. In the display area DA, the first island portions 11 are 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), and the first bridge portion 12 connects adjacent first island portions 11.

[0102] The first bridge portions 12 may be spaced apart from each other by first openings CS1 defined between the first bridge portions 12. The first bridge portions 12 may have a serpentine shape. Figure 4C As shown in FIG. 1 , the first bridge portion 12 may have an approximate “letter S” shape.

[0103] Each first island portion 11 may extend to a plurality of first bridge portions 12. In an embodiment, each first island portion 11 may extend to four first bridge portions 12. Two first bridge portions 12 may be respectively arranged at two opposite sides of the first island portion 11 in a first direction (e.g., x direction or -x direction), and the remaining two first bridge portions 12 may be respectively arranged at two opposite sides of the first island portion 11 in a second direction (e.g., y direction or -y direction). The four first bridge portions 12 may extend to four sides of the first island portion 11, respectively. The four first bridge portions 12 may be respectively adjacent to corresponding corners of the first island portion 11.

[0104] In non-display areas (for example, Figure 4C In the first non-display area NDA1 shown in FIG. 1 , the display device 1 may include a second island portion 21 and a second bridge portion 22 connecting adjacent second island portions 21. Figure 4C In the first non-display area NDA1 shown in FIG. 8 , the second island portions 21 are spaced apart from each other in a first direction (eg, an x ​​direction or −x direction) and a second direction (eg, a y direction or −y direction).

[0105] The second bridge portions 22 may be spaced apart from each other by second openings CS2 defined between the second bridge portions 22. The second bridge portions 22 may have a serpentine shape. Figure 4CAs shown in , the second bridge portion 22 may have a shape approximately like the letter "S". The size and / or width of the second bridge portion 22 may be different from the size and / or width of the first bridge portion 12. In an embodiment, the size and / or width of the second bridge portion 22 may be greater than the size and / or width of the first bridge portion 12. The radius of curvature of the rounded portion of the second bridge portion 22 may be different from the radius of curvature of the rounded portion of the first bridge portion 12. In an embodiment, the radius of curvature of the rounded portion of the second bridge portion 22 may be greater than the radius of curvature of the rounded portion of the first bridge portion 12.

[0106] Each second island portion 21 may extend to a plurality of second bridge portions 22. Each second island portion 21 may extend to four second bridge portions 22. Two second bridge portions 22 may be respectively arranged at two opposite sides of the second island portion 21 in a first direction (e.g., x direction or -x direction), and the remaining two second bridge portions 22 may be respectively arranged at two opposite sides of the second island portion 21 in a second direction (e.g., y direction or -y direction). In an embodiment, the four second bridge portions 22 may extend to four sides of the second island portion 21, respectively. Each second bridge portion 22 may extend to the central portion of each side of the second island portion 21.

[0107] The second island portions 21 arranged in one row in the first non-display area NDA1 may correspond to the first island portions 11 arranged in a plurality of rows in the display area DA. In an embodiment, the second island portions 21 arranged in one row in the first non-display area NDA1 may correspond to the first island portions 11 in the i-th row and the first island portions 11 in the i+1-th row in the display area DA (here, i is an integer greater than 0). In another embodiment, the second island portions 21 arranged in one row may correspond to the n-th row of first island portions 11 (here, n is an integer greater than or equal to 3).

[0108] The non-display area (e.g., the first non-display area NDA1) may include a first sub-non-display area SNDA1 in which the second island portion 21 and the second bridge portion 22 are arranged, and a second sub-non-display area SNDA2 between the first sub-non-display area SNDA1 and the display area DA. The third bridge portion 23 may be arranged in the second sub-non-display area SNDA2. The third bridge portion 23 connects the display area DA to the first sub-non-display area SNDA1. One end of the third bridge portion 23 may extend to the second island portion 21, and the opposite end of the third bridge portion 23 may extend to the first island portion 11. In an embodiment, one end of the third bridge portion 23 may extend to a central portion of one side of the second island portion 21, and the opposite end of the third bridge portion 23 may extend to a central portion of one side of the first island portion 11.

[0109] The third bridge portion 23 may have a serpentine shape. In an embodiment, the shape of the third bridge portion 23 may be different from the shape of each of the first bridge portion 12 and the second bridge portion 22. The width of the third bridge portion 23 may be different from the width of the first bridge portion 12 and the width of the second bridge portion 22. The width of the third bridge portion 23 may be greater than the width of the first bridge portion 12, and may be less than the width of the second bridge portion 22. In the second direction (e.g., the y direction or the -y direction), the third opening CS3 and the fourth opening CS4 having different shapes may be alternately defined between the third bridge portion 23.

[0110] Figure 5 is a schematic cross-sectional view of an embodiment of the first island portion 11 and the first bridge portion 12 arranged in the display area DA of the display device 1 .

[0111] refer to Figure 5 , the first island portion 11 and the first bridge portion 12 arranged in the display area DA may be spaced apart from each other, wherein the first opening CS1 is between the first island portion 11 and the first bridge portion 12. The first island portion 11 may include a light emitting element LED and a circuit (e.g., a pixel driving circuit PC) electrically connected to and driving the light emitting element LED. The first bridge portion 12 may include wirings WL electrically connected to the pixel driving circuits PC respectively arranged on adjacent first island portions 11.

[0112] In the first island portion 11, a buffer layer 111 including an inorganic insulating material may be provided on the substrate 100, and a pixel driving circuit PC may be provided on the buffer layer 111. An insulating layer IL including an inorganic insulating material and / or an organic insulating material may be provided between the pixel driving circuit PC and the light emitting element LED. The light emitting element LED may be provided on the insulating layer IL and may be electrically connected to the pixel driving circuit PC. The light emitting element LED may emit light of different colors, or may emit light of the same color. In an embodiment, the light emitting element LED may emit red light, green light, and blue light, respectively. In an embodiment, the light emitting element LED may emit white light. In another embodiment, the light emitting element LED may emit red light, green light, blue light, and white light, respectively.

[0113] The substrate 100 may include a polymer resin such as polyethersulfone, polyarylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyimide, polycarbonate, triacetyl cellulose or cellulose acetate propionate. In an embodiment, the substrate 100 may include a single layer including the polymer resin. In another embodiment, the substrate 100 may have a multilayer structure including a base layer and a barrier layer. The base layer includes the above-mentioned polymer resin, and the barrier layer includes an inorganic insulating material. The substrate 100 including the polymer resin is flexible, rollable or bendable.

[0114] In the embodiment, although Figure 5 , three pixel driving circuits PC (or three parts of the pixel driving circuit PC) are arranged in the first island portion 11, and three light emitting elements LED are respectively connected to the three pixel driving circuits PC (or three parts of the pixel driving circuit PC), but the present disclosure is not limited thereto. In another embodiment, the number of pixel driving circuits PC (or parts of the pixel driving circuit PC) and the number of light emitting elements LED arranged in the first island portion 11 may be one, two, four or more.

[0115] The encapsulation layer 300 may be disposed on the light emitting element LED and may protect the light emitting element LED from external force and / or moisture penetration. The encapsulation layer 300 may include an inorganic encapsulation layer and / or an organic encapsulation layer. In an embodiment, the encapsulation layer 300 may have a structure in which an inorganic encapsulation layer including an inorganic insulating material, an organic encapsulation layer including an organic insulating material, and an inorganic encapsulation layer including an inorganic insulating material are stacked. In another embodiment, the encapsulation layer 300 may include an organic material such as a resin. In an embodiment, the encapsulation layer 300 may include urethane, epoxy resin, or acrylate. The encapsulation layer 300 may include a photosensitive material (e.g., a photoresist).

[0116] In the first bridge portion 12, an insulating layer IL including an organic insulating material may be disposed on the substrate 100. Unlike the first island portion 11, the first bridge portion 12 relatively deformed when the display device 1 is stretched may not include a layer including an inorganic insulating material that is easily broken.

[0117] In an embodiment, the substrate 100 corresponding to the first bridge portion 12 may have the same stacking structure as that of the substrate 100 corresponding to the first island portion 11. In an embodiment, for example, the substrate 100 corresponding to the first bridge portion 12 and the substrate 100 corresponding to the first island portion 11 may include polymer resin layers formed simultaneously during the same process. In another embodiment, the substrate 100 corresponding to the first bridge portion 12 may have a stacking structure different from that of the substrate 100 corresponding to the first island portion 11. In an embodiment, for example, the substrate 100 corresponding to the first island portion 11 may have a multilayer structure including a base layer including a polymer resin and a barrier layer including 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 including an inorganic insulating material.

[0118] As described above, the wiring WL of the first bridge portion 12 may be a signal line (e.g., a gate line or a data line, etc.) that provides an electrical signal to a transistor included in the pixel driving circuit PC of the first island portion 11, or a voltage line (e.g., a driving voltage line or an initialization voltage line, etc.) that provides a voltage. The encapsulation layer 300 may also be disposed on the first bridge portion 12. In another embodiment, the encapsulation layer 300 may not be located in the first bridge portion 12.

[0119] refer to FIG. 4A to FIG. 4C and Figure 5 , the substrate 100 corresponding to the first island portion 11 and the substrate 100 corresponding to the first bridge portion 12 may extend to or be connected to each other. FIG. 4A to FIG. 4C The plan view shown in Figure 5 In other words, the substrate 100 may include a region corresponding to the first island portion 11 and a region 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 .

[0120] Similarly, the encapsulation layer 300 corresponding to the first island portion 11 and the encapsulation layer 300 corresponding to the first bridge portion 12 may extend to or be connected to each other. FIG. 4A to FIG. 4C The plan view shown in Figure 5 In other words, the encapsulation layer 300 may include a region corresponding to the first island portion 11 and a region corresponding to the first bridge portion 12, and an opening 300OP1 having the same shape as the first opening CS1 may be defined in the encapsulation layer 300.

[0121] The circuit-light emitting element layer 200 between the substrate 100 and the packaging 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. FIG. 4A to FIG. 4C The plan view shown in Figure 5 The plan view of the circuit-light emitting element layer 200 is substantially the same. In other words, the circuit-light emitting element layer 200 may define an opening 200OP1 having the same shape as that of the first opening CS1.

[0122] FIG. 6A to FIG. 6C They are respectively equivalent circuit diagrams of embodiments of sub-pixels of a display device.

[0123] refer to Fig. 6A, the light emitting element LED corresponding to the sub-pixel may be electrically connected to the 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 data line DL and a gate line such as a first scan line SL1. The voltage line may include a first voltage line VDDL. The light emitting element LED may be electrically connected to the pixel driving circuit PC and a second voltage line VSSL.

[0124] The second transistor T2 may be electrically connected to the first scan line SL1 and the data line DL. The first scan line SL1 may provide the first scan signal GW to the gate electrode of the second transistor T2. The second transistor T2 may transmit the data signal Dm to the first transistor T1 according to the first scan signal GW input from the first scan line SL1. The data signal Dm is input from the data line DL.

[0125] The storage capacitor Cst may be electrically connected to the second transistor T2 and the first voltage line VDDL, and may store a voltage corresponding to a difference between a voltage transmitted from the second transistor T2 and a first power supply voltage VDD supplied by the first voltage line VDDL.

[0126] The first transistor T1 is used as a driving transistor and can control 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 from the first voltage line VDDL to the light emitting element LED in response to the value of the voltage stored in the storage capacitor Cst. The light emitting element LED can emit light with a preset brightness based on the driving current. The first electrode of the light emitting element LED can be electrically connected to the first transistor T1, and the second electrode of the light emitting element LED can be electrically connected to the second voltage line VSSL supplying the second power supply voltage VSS.

[0127] Despite Fig. 6A 3 shows that the pixel driving circuit PC includes two transistors and one storage capacitor, but the pixel driving circuit PC may include three or more transistors or two or more capacitors.

[0128] refer to Figure 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.

[0129] The pixel driving circuit PC is electrically connected to the signal line and the voltage line. The signal line may include a data line DL and a gate line such as a first scan line SL1, a second scan line SL2, a third scan line SL3, and an emission control line EML. The voltage line may include a first initialization voltage line VIL1 and a second initialization voltage line VIL2 and a first voltage line VDDL. The light emitting element LED may be electrically connected to the pixel driving circuit PC and the second voltage line VSSL.

[0130] The first voltage line VDDL may transmit the first power supply voltage VDD to the first transistor T1. The first initialization voltage line VIL1 may transmit the first initialization voltage Vint to the pixel driving circuit PC. The first initialization voltage Vint initializes the first transistor T1. The second initialization voltage line VIL2 may transmit the second initialization voltage Vaint to the pixel driving circuit PC. The second initialization voltage Vaint initializes the first electrode of the light emitting element LED.

[0131] The first transistor T1 may be electrically connected to the first voltage line VDDL through the fifth transistor T5 and may be electrically connected to the light emitting element LED through the sixth transistor T6. The first transistor T1 functions as a driving transistor, receives the data signal Dm according to the switching operation of the second transistor T2 and supplies a driving current to the light emitting element LED.

[0132] The second transistor T2 is used as a data write transistor and is electrically connected to the first scan line SL1 and the data line DL. The second transistor T2 may be connected to the first voltage line VDDL through the fifth transistor T5. The second transistor T2 is turned on according to the first scan signal GW transmitted through the first scan line SL1, and performs a switching operation of transmitting the data signal Dm transmitted through the data line DL to the first node N1.

[0133] The third transistor T3 is electrically connected to the first scan line SL1 and is electrically connected to the light emitting element LED through the sixth transistor T6. The third transistor T3 can be turned on according to the first scan signal GW to diode-connect the first transistor T1. The first scan signal GW is transmitted through the first scan line SL1.

[0134] The fourth transistor T4 is used as a first initialization transistor and is electrically connected to the first initialization voltage line VIL1. The fourth transistor T4 can be turned on according to the third scan signal GI to initialize the gate voltage of the first transistor T1 by transmitting the first initialization voltage Vint to the gate electrode of the first transistor T1. The first initialization voltage Vint is transmitted through the first initialization voltage line VIL1, and the third scan signal GI is transmitted through the third scan line SL3. The third scan signal GI may correspond to a first scan signal of another pixel driving circuit disposed in a previous row of the associated pixel driving circuit PC.

[0135] The fifth transistor T5 may be used as an operation control transistor, and the sixth transistor T6 may be used as an emission control transistor. The fifth transistor T5 and the sixth transistor T6 may be electrically connected to the emission control line EML, and may be simultaneously turned on according to the emission control signal EM transmitted through the emission control line EML, and may define a current path so that the driving current flows in a direction from the first voltage line VDDL to the light emitting element LED.

[0136] The seventh transistor T7 is used as 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 transmitted 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, thereby initializing the first electrode of the light emitting element LED.

[0137] 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 a voltage applied to the gate electrode of the first transistor T1 by storing and maintaining a voltage corresponding to a difference between voltages of two opposite ends connected to the gate electrode of the first transistor T1 and the first voltage line VDDL, respectively.

[0138] refer to Figure 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.

[0139] The pixel driving circuit PC is electrically connected to the signal line and the voltage line. The signal line may include a data line DL and a gate line such as a first scan line SL1, a second scan line SL2, a third scan line SL3, and an emission control line EML. The voltage line may include a first initialization voltage line VIL1 and a second initialization voltage line VIL2, a sustaining voltage line VSL, and a first voltage line VDDL. The light emitting element LED may be electrically connected to the pixel driving circuit PC and the second voltage line VSSL.

[0140] The first voltage line VDDL may transmit the first power supply voltage VDD to the first transistor T1. The first initialization voltage line VIL1 may transmit the first initialization voltage Vint to the pixel driving circuit PC. The first initialization voltage Vint initializes the first transistor T1. The second initialization voltage line VIL2 may transmit the second initialization voltage Vaint to the pixel driving circuit PC. The second initialization voltage Vaint initializes the first electrode of the light emitting element LED. During the initialization section and the data writing section, the sustaining voltage line VSL may provide the sustaining voltage VSUS to the second node N2 (e.g., the second electrode CE2 of the storage capacitor Cst).

[0141] The first transistor T1 may be electrically connected to the first voltage line VDDL through the fifth transistor T5 and the eighth transistor T8, and may be electrically connected to the light emitting element LED through the sixth transistor T6. The first transistor T1 functions as a driving transistor, receives the data signal Dm according to the switching operation of the second transistor T2, and supplies a driving current to the light emitting element LED.

[0142] 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 through the fifth transistor T5 and the eighth transistor T8. The second transistor T2 may be turned on according to the first scan signal GW transmitted through the first scan line SL1, and may perform a switching operation of transmitting the data signal Dm to the first node N1. The data signal Dm is transmitted through the data line DL.

[0143] The third transistor T3 is electrically connected to the first scan line SL1 and is electrically connected to the light emitting element LED through the sixth transistor T6. The third transistor T3 can be turned on according to the first scan signal GW to compensate for the threshold voltage of the first transistor T1 by diode-connecting the first transistor T1. The first scan signal GW is transmitted through the first scan line SL1.

[0144] The fourth transistor T4 is electrically connected to the third scan line SL3 and the first initialization voltage line VIL1, is turned on according to the third scan signal GI transmitted through the third scan line SL3, and initializes the voltage of the gate electrode of the first transistor T1 by transmitting the first initialization voltage Vint to the gate electrode of the first transistor T1. The first initialization voltage Vint is transmitted through the first initialization voltage line VIL1. The third scan signal GI may correspond to a first scan signal of another pixel driving circuit disposed in a previous row of the associated pixel driving circuit PC.

[0145] The fifth transistor T5, the sixth transistor T6 and the eighth transistor T8 can be electrically connected to the emission control line EML, can be turned on at the same time according to the emission control signal EM transmitted through the emission control line EML, and can define a current path so that the driving current flows in the direction from the first voltage line VDDL to the light emitting element LED.

[0146] The seventh transistor T7 is used as 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 transmitted 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, thereby initializing the first electrode of the light emitting element LED.

[0147] The ninth transistor T9 may be electrically connected to the second scan line SL2, the second electrode CE2 of the storage capacitor Cst, and the sustaining voltage line VSL. During the initialization section and the data writing section, the ninth transistor T9 may be turned on according to the second scan signal GB transmitted through the second scan line SL2, and may transmit the sustaining voltage VSUS to the second node N2 (e.g., the second electrode CE2 of the storage capacitor Cst).

[0148] Each of the eighth transistor T8 and the ninth transistor T9 may be electrically connected to the second node N2 (e.g., the second electrode CE2 of the storage capacitor Cst). In an embodiment, during the initialization section and the data writing section, the eighth transistor T8 may be turned off and the ninth transistor T9 may be turned on, and during the emission section, the eighth transistor T8 may be turned on and the ninth transistor T9 may be turned off. Because the sustain voltage VSUS is transmitted to the second node N2 during the initialization section and the data writing section, the brightness uniformity (e.g., long range uniformity ("LRU")) of the display device corresponding to the voltage drop of the first voltage line VDDL may be improved.

[0149] 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.

[0150] The auxiliary capacitor Ca may be electrically connected to the sixth transistor T6, the sustaining voltage line VSL, and the first electrode of the light emitting element LED. When the seventh transistor T7 and the ninth transistor T9 are turned on, the auxiliary capacitor Ca stores and maintains a voltage corresponding to the difference between the voltage of the first electrode of the light emitting element LED and the sustaining voltage VSUS of the sustaining voltage line VSL, thereby preventing the black brightness from rising when the sixth transistor T6 is turned off.

[0151] Fig. 7A is a schematic cross-sectional view of an embodiment of a light emitting element of a display device.

[0152] refer to Fig. 7A , the light emitting element in the embodiment may include an organic light emitting diode 220 including an organic material. The organic light emitting diode 220 may include a first electrode 221 disposed on an insulating layer, a second electrode 225 facing the first electrode 221, and an emission layer 223 disposed between the first electrode 221 and the second electrode 225. The first functional layer 222 may be disposed between the first electrode 221 and the emission layer 223, and the second functional layer 224 may be disposed between the emission layer 223 and the second electrode 225.

[0153] The edge of the first electrode 221 may be covered by a bank layer BKL including an insulating material. The bank layer BKL may define an opening B-OP overlapping a central portion of the first electrode 221.

[0154] The first electrode 221 may include, for example, indium tin oxide ("ITO"), indium zinc oxide ("IZO"), zinc oxide (ZnO), indium oxide (In 2 O 3 ), indium gallium oxide ("IGO"), and / or aluminum zinc oxide ("AZO"). In another embodiment, the first electrode 221 may include a reflective layer including silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or any combination thereof. In another embodiment, the first electrode 221 may further include a conductive oxide including ITO, IZO, ZnO, AZO, or In on / under the reflective layer. 2 O 3 layer.

[0155] The emission layer 223 may include a polymer organic material or a low molecular weight organic material that emits light having a preset color. The first functional layer 222 may include a hole transport layer ("HTL") and / or a hole injection layer ("HIL"). The second functional layer 224 may include an electron transport layer ("ETL") and / or an electron injection layer ("EIL").

[0156] The second electrode 225 may include a conductive material having a relatively low work function. In an embodiment, the second electrode 225 may include a (semi) transparent layer containing silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr) or any alloy thereof. In an alternative embodiment, the second electrode 225 may further include a (semi) transparent layer including ITO, IZO, ZnO, AZO or In 2 O 3 layer.

[0157] Figure 7B is a schematic cross-sectional view of an embodiment of a light emitting element of a display device.

[0158] refer to Figure 7B , the light emitting element in the embodiment may include an inorganic light emitting diode 230 including an inorganic material. The inorganic light emitting diode 230 may include a first semiconductor layer 231, a second semiconductor layer 232, an intermediate layer 233 between the first semiconductor layer 231 and the second semiconductor layer 232, a first electrode 235 electrically connected to the first semiconductor layer 231, and a second electrode 238 electrically connected to the second semiconductor layer 232. The first electrode 235 and the second electrode 238 of the inorganic light emitting diode 230 may be electrically connected to a first electrode pad 241 and a second electrode pad 242 provided in the same layer, respectively.

[0159] In an embodiment, the first semiconductor layer 231 may include a p-type semiconductor layer. The p-type semiconductor layer may include a semiconductor layer having a composition formula In x Al y Ga 1-x-y N (0≤x≤1, 0≤y≤1, 0≤x+y≤1) semiconductor material (for example, GaN, AlN, AlGaN, InGaN, InN, InAlGaN or AlInN, etc.), and can be doped with p-type dopants such as Mg, Zn, Ca, Sr or Ba.

[0160] In an embodiment, the second semiconductor layer 232 may include an n-type semiconductor layer. The n-type semiconductor layer may include a semiconductor layer having a composition formula In x Al y Ga 1-x-y N (0≤x≤1, 0≤y≤1, 0≤x+y≤1) semiconductor material (for example, GaN, AlN, AlGaN, InGaN, InN, InAlGaN or AlInN, etc.), and can be doped with n-type dopants such as Si, Ge or Sn.

[0161] The intermediate layer 233 is a region where electrons and holes are recombined. As the electrons and holes are recombined in the intermediate layer 233, excitons may be generated, and the generated excitons may transition to a lower energy level and may generate light having a corresponding wavelength. In an embodiment, for example, the intermediate layer 233 may include a structure having a formula of In x Al y Ga 1-x-y The intermediate layer 233 may include a quantum wire structure or a quantum dot structure.

[0162] Despite Figure 7B , 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 disclosure 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.

[0163] Figure 8 is a schematic plan view of an embodiment of a part of a display device 1 .

[0164] refer to Figure 8 , in the display area DA, the display device 1 may include a first island portion 11 and a first bridge portion 12. In the display area DA, the first island portions 11 are spaced apart from each other in a first direction (e.g., an x ​​direction or a −x direction) and a second direction (e.g., a y direction or a −y direction), and the first bridge portion 12 connects adjacent first island portions 11. The first bridge portions 12 may be spaced apart from each other by a first opening CS1 defined between the first bridge portions 12. The first bridge portion 12 may have a serpentine shape (e.g., approximately a “letter S” shape).

[0165] Each first island portion 11 may extend to a plurality of first bridge portions 12. In an embodiment, each first island portion 11 may extend to four first bridge portions 12. Two first bridge portions 12 may be respectively arranged at two opposite sides of the first island portion 11 in a first direction (e.g., x direction or -x direction), and the remaining two first bridge portions 12 may be respectively arranged at two opposite sides of the first island portion 11 in a second direction (e.g., y direction or -y direction). The four first bridge portions 12 may extend to four sides of the first island portion 11, respectively. Each of the first bridge portions 12 may be adjacent to a corner of the first island portion 11.

[0166] In the display device 1, the non-display area (eg, Figure 8The first non-display area NDA1 shown in FIG. 1 may include a first sub-non-display area SNDA1, a second sub-non-display area SNDA2, and a third sub-non-display area SNDA3. The second sub-non-display area SNDA2 may be disposed between the first sub-non-display area SNDA1 and the display area DA. The third sub-non-display area SNDA3 may be disposed on the opposite side of the second sub-non-display area SNDA2, wherein the first sub-non-display area SNDA1 is between the second sub-non-display area SNDA2 and the third sub-non-display area SNDA3. The third sub-non-display area SNDA3 may correspond to the outermost portion of the display device 1.

[0167] The second island portions 21 and the second bridge portions 22 may be arranged in the first sub non-display area SNDA1. The second island portions 21 are spaced apart from each other in a first direction (e.g., an x ​​direction or a −x direction) and a second direction (e.g., a y direction or a −y direction), and the second bridge portions 22 connect adjacent second island portions 21. The second bridge portions 22 may be spaced apart from each other by a second opening CS2 defined between the second bridge portions 22. The second bridge portion 22 may have a serpentine shape (e.g., approximately a “letter S” shape).

[0168] Each second island portion 21 may extend to a plurality of second bridge portions 22. Each second island portion 21 may extend to four second bridge portions 22. Two second bridge portions 22 may be respectively arranged at two opposite sides of the second island portion 21 in a first direction (e.g., x direction or -x direction), and the remaining two second bridge portions 22 may be respectively arranged at two opposite sides of the second island portion 21 in a second direction (e.g., y direction or -y direction). In an embodiment, the four second bridge portions 22 may extend to four sides of the second island portion 21, respectively. Each second bridge portion 22 may extend to the central portion of each side of the second island portion 21.

[0169] The second island portions 21 arranged in one row in the first non-display area NDA1 may correspond to the first island portions 11 arranged in a plurality of rows in the display area DA. In an embodiment, the second island portions 21 arranged in one row in the first non-display area NDA1 may correspond to the first island portions 11 in the i-th row and the first island portions 11 in the i+1-th row in the display area DA (here, i is an integer greater than 0). In another embodiment, the second island portions 21 arranged in one row may correspond to the n-th row of first island portions 11 (here, n is an integer greater than or equal to 3).

[0170] The third bridge portion 23 may be disposed in the second sub non-display area SNDA2. The third bridge portion 23 connects the display area DA to the first sub non-display area SNDA1. One end of the third bridge portion 23 may extend to the second island portion 21, and the opposite end of the third bridge portion 23 may extend to the first island portion 11. In an embodiment, one end of the third bridge portion 23 may extend to a central portion of one side of the second island portion 21, and the opposite end of the third bridge portion 23 may extend to a central portion of one side of the first island portion 11.

[0171] By using the third bridge portion 23, one of the second island portions 21 arranged in one row may extend to one of the first island portions 11 in the i-th row and one of the first island portions 11 in the i+1-th row in the display area DA. Figure 8 As shown in , one of the second island portions 21 may extend to two first island portions 11 in different rows through two third bridge portions 23. In another embodiment, one of the second island portions 21 may extend to three or more first island portions 11 in different rows through three or more third bridge portions 23.

[0172] The third bridge portion 23 may have a serpentine shape. In an embodiment, the shape of the third bridge portion 23 may be different from the shape of each of the first bridge portion 12 and the second bridge portion 22. The width of the third bridge portion 23 may be different from the width of the first bridge portion 12 and the width of the second bridge portion 22. The width of the third bridge portion 23 may be greater than the width of the first bridge portion 12, and may be less than the width of the second bridge portion 22. In the second direction (e.g., the y direction or the -y direction), the third opening CS3 and the fourth opening CS4 having different shapes may be alternately defined between the third bridge portion 23. In an embodiment, the third bridge portion 23 may include a portion that is rounded in the clockwise direction and a portion that is rounded in the counterclockwise direction.

[0173] The third island portion 31 may be arranged in the third sub non-display area SNDA3. The third island portion 31 may correspond to the second island portion 21 in one of the plurality of rows. One third island portion 31 may extend to one second island portion 21 through the second bridge portion 22 disposed in the outermost portion. The spacing portion 32 may be disposed between adjacent third island portions 31. The spacing portion 32 is a kind of opening. Adjacent third island portions 31 may be spatially and physically separated from each other.

[0174] In an embodiment, the elongation of the non-display area of ​​the display device 1 may be less than the elongation of the display area DA. The elongations of the first sub non-display area SNDA1, the second sub non-display area SNDA2, and the third sub non-display area SNDA3 of the display device 1 may be different from each other. Figure 8The elongation rate of the first sub-non-display area SNDA1 of the display device 1 shown in the figure may be less than the elongation rate of the display area DA. The elongation rate of the third sub-non-display area SNDA3 may be less than the elongation rate of the first sub-non-display area SNDA1.

[0175] In an embodiment, the elongation rate of the second sub-non-display area SNDA2 may be less than the elongation rate of the first sub-non-display area SNDA1 and may be less than the elongation rate of the display area DA. In another embodiment, the elongation rate of the second sub-non-display area SNDA2 may be greater than the elongation rate of the first sub-non-display area SNDA1 and may be less than the elongation rate of the display area DA.

[0176] As described above, since the elongation rates of the non-display area and the display area DA are different from each other, the electrical connection between the driver of the gate driving circuit GDC (refer to Figure 3 ) that can be arranged in the second island portion 21 and the transistor arranged in the first island portion 11 can be stably maintained. In addition, each operation process can be stably maintained during the process of manufacturing the display device 1 having openings (for example, the first to fourth openings CS1, CS2, CS3, and CS4).

[0177] The width Wi1 of the first island portion 11 provided in the display area DA may be less than the width Wi2 of the second island portion 21 provided in the non-display area. The first distance BS1 between two adjacent first island portions 11 arranged in the display area DA may be less than the second distance BS2 between two adjacent second island portions 21 arranged in the non-display area (BS1 < BS2). The ratio of the first distance BS1 to the width Wi1 of the first island portion 11 may be greater than the ratio of the second distance BS2 to the width Wi2 of the second island portion 21 (BS1 / Wi1 > BS2 / Wi2). The minimum value of the width Wi1 of the first island portion 11 may be several tens of micrometers (μm). In an embodiment, the width Wi1 of the first island portion 11 may be several tens of micrometers (μm) to several hundreds of micrometers (μm). In an embodiment, the width Wi1 of the first island portion 11 may be about 10 micrometers (μm) to about 300 micrometers (μm).

[0178] Although in Figure 8 it is shown that the first island portion 11 and the second island portion 21 are quadrilateral (for example, square), the present disclosure is not limited thereto. The first island portion 11 and / or the second island portion 21 may be rectangular. In an alternative embodiment, the first island portion 11 and / or the second island portion 21 may have a polygon or a circular shape containing five or more sides. In an embodiment, the polygon having five or more sides may be a regular polygon.

[0179] Fig. 9 is included in Figure 8 Extracted plan view of the first bridge portion 12 in the display area DA.

[0180] Reference Figure 8 and Fig. 9 and, the first bridge portion 12 may be disposed between two adjacent first island portions 11 and may have an approximate "letter S" shape. The first bridge portion 12 may have a relatively constant width. In an embodiment, the first bridge portion 12 may have a first width w1.

[0181] The first bridge portion 12 may include two first rounded portions 12A and a straight portion 12B between the two first rounded portions 12A. The widths of the two first rounded portions 12A and the width of the straight portion 12B may be substantially the same as each other. In an embodiment, each of the two first rounded portions 12A and the straight portion 12B may have the first width w1.

[0182] Each of the first rounded portions 12A may have an arc shape (e.g., an approximate circular arc shape). In an embodiment, each of the first rounded portions 12A may have an arc shape with a central angle (also referred to as the first central angle) that is a first angle θ1. The first angle θ1 may be a major angle.

[0183] The radius of curvature r1 of the first rounded portion 12A may be the radius of a virtual circle passing through a point that is half the width of the first rounded portion 12A. The radius of curvature r1 of the first rounded portion 12A may be greater than the radius of curvature r of the inner edge of the first rounded portion 12A and may be less than the radius of curvature R of the outer edge of the first rounded portion 12A (r < r1 < R). The radius of curvature r1 of the first rounded portion 12A may be equal to the sum of the radius of curvature r of the inner edge of the first rounded portion 12A and half of the first width w1 (r1 = r + (1 / 2)×w1). In an alternative embodiment, the radius of curvature r1 of the first rounded portion 12A may be equal to the difference between the radius of curvature R of the outer edge of the first rounded portion 12A and half of the first width w1 (r1 = R - (1 / 2)×w1). Although the above r, r1, and R have different values, the centers of the circles with the radii having the above parameters are the same as C1. In other words, the center of the circle with the radius of curvature r1 of the first rounded portion 12A, the center of the circle with the radius of curvature r of the inner edge of the first rounded portion 12A, and the center of the circle with the radius of curvature R of the outer edge of the first rounded portion 12A may all be the same as C1.

[0184] The straight portion 12B may have an approximately straight line shape. In an embodiment, the straight portion 12B may have a first width w1 and a first length L1. The first length L1 of the straight portion 12B may be greater than the first width w1. The straight portion 12B may be inclined relative to the edge 11E of the first island portion 11. In an embodiment, the edge 12BE of the straight portion 12B is not parallel to the edge 11E of the first island portion 11, and may define a preset angle δ relative to the edge 11E of the first island portion 11.

[0185] like Fig. 9 As shown in FIG. 1 , one end of the straight portion 12B may be connected to one of the first rounded portions 12A rounded in the clockwise direction, and as shown in FIG. Fig. 9 As shown in FIG. 1 , the opposite end of the straight portion 12B may be connected to another one of the first rounded portions 12A rounded in the clockwise direction.

[0186] When the display device 1 (reference Figure 8 ) is deformed (eg, stretched), the distance between two adjacent first island portions 11 may be changed while the shape of the first bridge portion 12 is deformed.

[0187] The first distance BS1 between two adjacent first island portions 11, the above-mentioned r1 and L1, and α1 may have a relationship of the following [Equation 1].

[0188] [Equation 1]

[0189] (BS1)min=2r1×(2+cosα1)-L1×sinα1

[0190] Here, (BS1)min represents the minimum value of the first distance BS1 between two adjacent first island portions 11, r1 represents the curvature radius r1 of the above-mentioned first chamfered portion 12A, L1 represents the first length L1 of the straight portion 12B, and α1 represents the value obtained by subtracting 180° from the first angle θ1 which is the central angle of the first chamfered portion 12A (α1=θ1-180°).

[0191] As each of the curvature radius r1 of the first rounded portion 12A, the first length L1 of the straight portion 12B, and the angle α1 obtained by subtracting 180° from the first angle θ1 which is the central angle of the first rounded portion 12A increases, it is easy to disperse in the display device 1 (refer to Figure 8)The stress applied to the first bridge portion 12 while being deformed (e.g., stretched). However, since the gap between two adjacent first island portions 11 is constant and the first bridge portion 12 has the serpentine shape as described above, the above r1, L1, and α1 can have a trade-off relationship. To reduce the stress applied to the first bridge portion 12 during tensioning, the above r1 can have a value greater than 1 / 4 of the first distance BS1. In an embodiment, r1 can satisfy the condition 0.25×BS1 < r1 < 0.5×BS1. In an embodiment, α1 can be an acute angle. In other words, the first angle θ1, which is the central angle of the first rounded portion 12A, can be greater than 180° and less than 270°. In an embodiment, α1 can be greater than 0° and less than or equal to 60° (0° < α1 ≤ 60°).

[0192] In an embodiment, L1 can be greater than r1. In another embodiment, L1 can be equal to r1 or less than r1.

[0193] The first bridge portion 12 may further include a second rounded portion 12C that is integral with the first rounded portion 12A and is disposed between the first rounded portion 12A and the first island portion 11. Each second rounded portion 12C can be integral with one end of the first rounded portion 12A.

[0194] As Fig. 9 shown, one end of the straight portion 12B can be connected to one of the first island portions 11 (e.g., the first island portion 11 shown on the right side in Fig. 9 ) through one of the first rounded portions 12A rounded in the clockwise direction and one of the second rounded portions 12C rounded in the counterclockwise direction. As Fig. 9 shown, the opposite end of the straight portion 12B can be connected to another first island portion 11 (e.g., the first island portion 11 shown on the left side in Fig. 9 ) through another first rounded portion 12A rounded in the clockwise direction and another second rounded portion 12C rounded in the counterclockwise direction.

[0195] Each of the second rounded portions 12C can have an arc shape (e.g., an approximately circular arc shape). In an embodiment, each of the second rounded portions 12C can have a circular arc shape whose central angle (also referred to as the second central angle) is the second angle θ2. The second angle θ2 can be less than the first angle θ1.

[0196] The curvature radius r2 of the second rounded portion 12C may be the radius of a virtual circle passing through a point of half the width of the second rounded portion 12C. In an embodiment, although the center C2 of the above-mentioned virtual circle may be set on a virtual straight line VL1 passing through the edge 11E of the first island portion 11, the present disclosure is not limited thereto. In another embodiment, the center C2 of the virtual circle may be spaced apart from the virtual straight line VL1.

[0197] The curvature radius r2 of the second rounded portion 12C may be less than or equal to the curvature radius r1 of the first rounded portion 12A (r2≤r1). The width of the second rounded portion 12C may be substantially the same as the width of the first rounded portion 12A and the width of the straight portion 12B. In an embodiment, the width of the second rounded portion 12C may be the first width w1.

[0198] The first bridge portion 12 may be disposed in a gap (e.g., a gap having a first distance BS1) between two adjacent first island portions 11 extending to each other through the first bridge portion 12. A length LT1 occupied by the first bridge portion 12 in a direction intersecting the first distance BS1 may be greater than a width Wi1 of the first island portion 11. The length LT1 occupied by the first bridge portion 12 represents a straight-line distance between the outermost edges of the first bridge portion 12 measured in a direction intersecting the first distance BS1. In an embodiment, the length LT1 occupied by the first bridge portion 12 may be greater than the width Wi1 of the first island portion 11, and may be less than the sum of the width Wi1 of the first island portion 11 and the first distance BS1 (Wi1). <LT1<Wi1+BS1)。

[0199] Fig.10 Is set in Figure 8 An extracted plan view of a portion of the display area DA.

[0200] refer to Fig.10 , one first island portion 11 may extend to four first bridge portions 12 . One first bridge portion 12 may be provided between two adjacent first island portions 11 to connect the two adjacent first island portions 11 .

[0201] Each of the four first bridge portions 12 may be adjacent to a corresponding corner of the first island portion 11. One first bridge portion 12 may extend to the first edge 11E1 of the first island portion 11 to be adjacent to the corner at which the first edge 11E1 and the second edge 11E2 intersect. Another first bridge portion 12 may extend to the second edge 11E2 of the first island portion 11 to be adjacent to the corner at which the second edge 11E2 and the third edge 11E3 intersect. Yet another first bridge portion 12 may extend to the third edge 11E3 of the first island portion 11 to be adjacent to the corner at which the third edge 11E3 and the fourth edge 11E4 intersect. Yet another first bridge portion 12 may extend to the fourth edge 11E4 of the first island portion 11 to be adjacent to the corner at which the fourth edge 11E4 and the first edge 11E1 intersect. Each of the first bridge portions 12 may have the above reference Fig. 9 The structure of the description.

[0202] In order to prevent interference between adjacent first bridge portions 12, the straight-line distance between point A and point B may be greater than twice the curvature radius r1 of the first rounded portion 12A of each first bridge portion 12 and the first width w1 of the first rounded portion 12A (refer to Fig. 9 ) (the straight-line distance between point A and point B>2r1+w1). Here, point A and point B may be the centers of virtual circles corresponding to the corresponding first rounded portions 12A of the adjacent first bridge portions 12 (referenced above). Fig. 9 described in C1).

[0203] Assuming that the distance between the centers of two adjacent first island portions 11 is p, the relationship between the curvature radius r1 of the first rounded portion 12A of the first bridge portion 12, the first width w1 of the first rounded portion 12A, and the width Wi1 of the first island portion 11 may have the following relationship [Equation 2].

[0204] [Equation 2]

[0205]

[0206] Fig.11 Is set in Figure 8 An extracted plan view of the second bridge portion 22 in the non-display area.

[0207] refer to Figure 8 and Fig.11, the second bridge portion 22 may be disposed between two adjacent second island portions 21 and may have an approximate "letter S" shape. The second bridge portion 22 may have a relatively constant width. In an embodiment, the second bridge portion 22 may have a second width w2. The second bridge portion 22 may have a shape different from that of the first bridge portion 12. In an embodiment, the first bridge portion 12 and the second bridge portion 22 may have a serpentine shape (e.g., an approximate "letter S" shape), and the predetermined shapes of the first bridge portion 12 and the second bridge portion 22 may be different from each other.

[0208] The second bridge portion 22 may include two first rounded portions 22A and a first straight portion 22B between the two first rounded portions 22A. The widths of the two first rounded portions 22A and the width of the first straight portion 22B may be substantially the same as each other. In an embodiment, each of the two first rounded portions 22A and the first straight portion 22B may have the second width w2. The second width w2 may be greater than the first width w1 described above with reference to Fig. 9 description.

[0209] One of the first rounded portions 22A may have an approximate arc shape. In an embodiment, each of the first rounded portions 22A may have an arc shape with a central angle that is a third angle θ3. The third angle θ3 may be a reflex angle. The third angle θ3 may be different from the first angle θ1 described above with reference to Fig. 9 description.

[0210] The radius of curvature R1 of the first rounded portion 22A may be the radius of a virtual circle passing through a point at half the width of the first rounded portion 22A. The radius of curvature R1 of the first rounded portion 22A may be greater than the radius of curvature r' of the inner edge of the first rounded portion 22A and may be less than the radius of curvature R' of the outer edge of the first rounded portion 22A (r' < R1 < R'). The radius of curvature R1 of the first rounded portion 22A may be equal to the sum of the radius of curvature r' of the inner edge of the first rounded portion 22A and half of the second width w2 (R1 = r' + (1 / 2) × w2). In an alternative embodiment, the radius of curvature R1 of the first rounded portion 22A may be equal to the difference between the radius of curvature R' of the outer edge of the first rounded portion 22A and half of the second width w2 (R1 = R' - (1 / 2) × w2). Although the above r', R1, and R' have different values, the centers of the circles with the radii having the above parameters are the same as C3. In other words, the centers of the circle with the radius of curvature R1 of the first rounded portion 22A, the circle with the radius of curvature r' of the inner edge of the first rounded portion 22A, and the circle with the radius of curvature R' of the outer edge of the first rounded portion 22A may all be the same as C3.

[0211] The curvature radius R1 of the first rounded portion 22A of the second bridge portion 22 may be greater than that of the first rounded portion 22A of the second bridge portion 22. Fig. 9 The first rounded portion 12A of the first bridge portion 12 is described as having a curvature radius r1 ( R1 > r1 ).

[0212] The first straight portion 22B may have an approximately straight line shape. In an embodiment, the first straight portion 22B may have a second width w2 and a second length L2. In an embodiment, the second length L2 of the first straight portion 22B may be greater than the second width w2. The first straight portion 22B may be inclined relative to the edge 21E of the second island portion 21. In an embodiment, the edge 22BE of the first straight portion 22B is not parallel to the edge 21E of the second island portion 21, and may define a preset angle relative to the edge 21E of the second island portion 21. The second length L2 can be the same as the above reference Fig. 9 The first length L1 described is different, and the above angle You can also refer to the above Fig. 9 The angle δ described is different.

[0213] like Fig.11 As shown in FIG. 1 , one end of the first straight portion 22B may extend to one of the first rounded portions 22A rounded in the clockwise direction, and as shown in FIG. Fig.11 As shown in FIG. 2 , the opposite end of the first straight portion 22B may extend to the other of the first rounded portions 22A that are rounded in the clockwise direction.

[0214] When the display device 1 (reference Figure 8 ) is deformed (eg, stretched), a distance between two adjacent second island portions 21 may be changed while the shape of the second bridge portion 22 is deformed.

[0215] In the embodiment, the second distance BS2 between two adjacent second island portions 21, the above-mentioned R1 and L2, and α2 may have a relationship of the following [Equation 3].

[0216] [Equation 3]

[0217] (BS2)min=2R1×(2+cosα2)-L2×sinα2

[0218] Here, (BS2)min represents the minimum value of the second distance BS2 between two adjacent second island portions 21, R1 represents the curvature radius R1 of the above-mentioned first chamfered portion 22A, L2 represents the second length L2 of the first straight portion 22B, and α2 represents the value obtained by subtracting 180° from the third angle θ3 which is the central angle of the first chamfered portion 22A (α2=θ3-180°).

[0219] As each of the radius of curvature R1 of the first rounded portion 22A, the second length L2 of the first straight portion 22B, and the angle α2 obtained by subtracting 180° from the third angle θ3 which is the central angle of the first rounded portion 22A increases, the stress applied to the second bridge portion 22 while being easily dispersed in the display device 1 (refer to Figure 8 ) is deformed (e.g., stretched). However, since the gap between two adjacent second island portions 21 is constant and the second bridge portion 22 has the serpentine shape as described above, the above R1, L2, and α2 can have a trade-off relationship. To reduce the stress applied to the second bridge portion 22 during tensioning, the above R1 can have a value greater than 1 / 4 of the second distance BS2. In an embodiment, R1 can have the condition of 0.25×BS2 < R1 < 0.5×BS2.

[0220] In an embodiment, α2 can be an acute angle. In other words, the third angle θ3 which is the central angle of the first rounded portion 22A can be greater than 180° and less than 270°. In an embodiment, α2 can be greater than 0° and equal to or less than 60° (0° < α2 ≤ 60°).

[0221] In an embodiment, L2 can be greater than R1. In another embodiment, L2 can be less than or equal to R1.

[0222] The second bridge portion 22 can further include a second straight portion 22D and a second rounded portion 22C provided between the first rounded portion 22A and the second island portion 21. The second straight portion 22D can be provided between the first rounded portion 22A and the second rounded portion 22C. The two opposite ends of the second straight portion 22D can be integral with the first rounded portion 22A and the second rounded portion 22C, respectively.

[0223] As Fig.11 shown, one end of the first straight portion 22B can extend to one of the second island portions 21 (e.g., one of the second island portions 21 shown on the right side in Fig.11 ) through one of the first rounded portions 22A rounded in the clockwise direction, one of the second straight portions 22D, and one of the second rounded portions 22C rounded in the counterclockwise direction. As Fig.11 shown, the opposite end of the first straight portion 22B can extend to the other of the second island portions 21 (e.g., the other second island portion 21 shown on the left side in Fig.11 ) through the other of the first rounded portions 22A rounded in the clockwise direction, the other of the second straight portions 22D, and the other of the second rounded portions 22C rounded in the counterclockwise direction.

[0224] The second straight portion 22D may have an approximately linear shape. The second straight portion 22D may have a second width w2 and a third length L3. The third length L3 may be less than the second length L2.

[0225] Each of the second rounded portions 22C may have an approximately circular arc shape. In an embodiment, each of the second rounded portions 22C may have a circular arc shape whose central angle is a fourth angle θ4. The fourth angle θ4 may be less than the third angle θ3. In an embodiment, the fourth angle θ4 may be an acute angle.

[0226] The radius of curvature R2 of the second rounded portion 22C may be the radius of a virtual circle passing through a point that is half the width of the second rounded portion 22C. In an embodiment, although the center C4 of the above virtual circle may be provided on the second island portion 21, the present disclosure is not limited thereto.

[0227] The radius of curvature R2 of the second rounded portion 22C may be less than or equal to the radius of curvature R1 of the first rounded portion 22A (R2 ≤ R1). In an embodiment, Fig.11 The case where R2 < R1 is shown. The width of the second rounded portion 22C may be substantially the same as the width of the first rounded portion 22A, the width of the first straight portion 22B, and the width of the second straight portion 22D. In an embodiment, the width of the second rounded portion 22C may be the second width w2.

[0228] The second bridge portion 22 may be disposed in a gap (e.g., a gap having a second distance BS2) between two adjacent second island portions 21 that extend to each other through the second bridge portion 22. The length LT2 occupied by the second bridge portion 22 in a direction crossing the second distance BS2 may be greater than the width Wi2 of the second island portion 21. The length LT2 occupied by the second bridge portion 22 represents the straight-line distance between the outermost edges of the second bridge portion 22 measured in a direction crossing the second distance BS2. The length LT2 occupied by the second bridge portion 22 may be greater than the length LT1 occupied by the first bridge portion 12 described above with reference to Fig. 9 In an embodiment, the length LT2 occupied by the second bridge portion 22 may be greater than the width Wi2 of the second island portion 21 and may be less than the sum of the width Wi2 of the second island portion 21 and the second distance BS2 (Wi2 < LT2 < Wi2 + BS2).

[0229] Fig.12 is an extracted plan view of an embodiment of a display area DA of a display device.

[0230] According to the above reference Figure 8 and Fig.10In the described embodiment, each of the first bridge portions 12 is shown to extend to the first island portion 11 at a position adjacent to each corner of the first island portion 11, but the present disclosure is not limited thereto. Fig.12 In the embodiment, each of the first bridge portions 12 may extend to a central portion of each side of the first island portion 11. Fig.12 The shape of the first bridge portion 12 is similar to that of the above reference Fig.11 The shape of the second bridge portion 22 described above may be substantially the same, but the first bridge portion 12 and the above reference Fig.11 The described second bridge portions 22 may differ from one another in their size and area.

[0231] Fig.13A is an extracted plan view of an embodiment of a display area DA of a display device.

[0232] According to the above reference Figure 8 and Fig.10 In the described embodiment, the first bridge portion 12 is shown to have a constant width (eg, the first width w1), but the present disclosure is not limited thereto. Fig.13A In an embodiment, the first bridge portion 12 may have a partially different width. In an embodiment, the straight portion 12B of the first bridge portion 12 may have a first width w1, and the width wa of the first rounded portion 12A and / or the width wc of the second rounded portion 12C may be different from the first width w1 of the straight portion 12B. In an embodiment, the width wa of the first rounded portion 12A of the first bridge portion 12 and / or the width wc of the second rounded portion 12C may be greater than the first width w1 of the straight portion 12B.

[0233] Two opposite sides of the first bridge portion 12 extending to the first island portion 11 may smoothly extend to sides of the adjacent first island portion 11 , respectively.

[0234] In an embodiment, one of the first bridge portions 12 extends to a corner between a first edge 11E1 and a second edge 11E2 of the first island portion 11. A first edge 12CE1 of a second rounded portion 12C of the first bridge portion 12 may smoothly extend to the first edge 11E1 of the first island portion 11, and a second edge 12CE2 of the second rounded portion 12C may smoothly extend to the second edge 11E2 of the first island portion 11. When the edge of the second rounded portion 12C smoothly extends to the edge of the first island portion 11, it may be indicated that an angle defined by the edge of the second rounded portion 12C and the edge of the first island portion 11 is greater than 90°.

[0235] Similarly, another one of the first bridge portions 12 extends to a corner between the second edge 11E2 and the third edge 11E3 of the first island portion 11. The first edge 12CE1 of the second rounded portion 12C of the first bridge portion 12 may smoothly extend to the second edge 11E2 of the first island portion 11, and the second edge 12CE2 of the second rounded portion 12C may smoothly extend to the third edge 11E3 of the first island portion 11. Still another one of the first bridge portions 12 extends to a corner between the third edge 11E3 and the fourth edge 11E4 of the first island portion 11. The first edge 12CE1 of the second rounded portion 12C of the first bridge portion 12 may smoothly extend to the third edge 11E3 of the first island portion 11, and the second edge 12CE2 of the second rounded portion 12C may smoothly extend to the fourth edge 11E4 of the first island portion 11. Still another one of the first bridge portions 12 extends to a corner between the fourth edge 11E4 of the first island portion 11 and the first edge 11E1. A first edge 12CE1 of the second rounded portion 12C of the first bridge portion 12 may smoothly extend to the fourth edge 11E4 of the first island portion 11 , and a second edge 12CE2 of the second rounded portion 12C may smoothly extend to the first edge 11E1 of the first island portion 11 .

[0236] Fig. 13B is a schematic plan view of an example of a first rounded portion 12A of a first bridge portion 12 of a display device.

[0237] refer to Fig. 13B , the inner edge 12AEi of the first rounded portion 12A of the first bridge portion 12 may have a sawtooth irregular change instead of a smooth curve. In an embodiment, the outer edge 12AEo of the first rounded portion 12A of the first bridge portion 12 may have a smooth curve. Accordingly, the width of the first rounded portion 12A of the first bridge portion 12 may not be constant. In an embodiment, for example, the width of the first rounded portion 12A of the first bridge portion 12 may be repeatedly increased and decreased. The stress concentrated on the inner edge 12AEi may be dispersed by the shape of the inner edge 12AEi of the first rounded portion 12A having a sawtooth irregular change.

[0238] Fig.14 is an enlarged plan view of an embodiment of the first island portion 11 of the display device, and Fig.15 It is along Fig.14 The line XV-XV' intercepts Fig.14 FIG. 1 is a cross-sectional view of the first island portion 11. FIG.

[0239] refer to Fig.14 and Fig.15The substrate 100 corresponding to the first island portion 11 may include a first base layer 101, a first barrier layer 102, a second base layer 103, and a second barrier layer 104. Each of the first base layer 101 and the second base layer 103 may include a polymer resin such as polyethersulfone, polyarylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyimide, polycarbonate, triacetyl cellulose, or cellulose acetate propionate. The first barrier layer 102 and the second barrier layer 104 may each include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride.

[0240] The size or area of ​​the uppermost inorganic insulating layer (eg, the second barrier layer 104) disposed on the substrate 100 may be smaller than Fig.14 The size or area of ​​the first island portion 11 is shown in FIG. Fig.15 , the size or area of ​​the topmost inorganic insulating layer (e.g., the second barrier layer 104) disposed on the substrate 100 may be smaller than the size or area of ​​the first base layer 101, the first barrier layer 102, and / or the second base layer 103 of the substrate 100 corresponding to the first island portion 11.

[0241] like Fig.14 As shown in FIG. 1 , the edge of the second barrier layer 104 may be spaced inwardly from the edge of the first island portion 11 by a first separation distance ds1. Fig.15 As shown in , an edge of the second barrier layer 104 may be spaced apart from edges of the first substrate layer 101 , the first barrier layer 102 , and / or the second substrate layer 103 by a first separation distance ds1 .

[0242] refer to Fig.14 , near a corner of the first island portion 11 to which the first bridge portion 12 is connected, an edge of the second barrier layer 104 may be spaced inwardly from an edge of the first island portion 11 by a second separation distance ds2. The second separation distance ds2 may have a value greater than that of the first separation distance ds1.

[0243] like Fig.14 As shown in FIG. 1 , due to the difference between the first separation distance ds1 and the second separation distance ds2 , a step portion ST may be provided in a plan view. The step portion ST may be provided between a first bridge portion 12 and another adjacent first bridge portion 12 .

[0244] refer to Fig.15 , a buffer layer 111 may be disposed on the substrate 100, and the pixel driving circuit PC may be disposed on the buffer layer 111. The buffer layer 111 may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride.

[0245] The thin film transistor TFT may include a semiconductor layer Act, a gate electrode GE, a source electrode SE, and a drain electrode DE. The thin film transistor TFT may correspond to Fig. 6A The first transistor T1 in the Figure 6B and Figure 6C The sixth transistor T6 or the seventh transistor T7 in FIG. Fig.15 A top-gate thin film transistor is shown in which the gate electrode GE is disposed on the semiconductor layer Act (with the gate insulating layer 113 between the gate electrode GE and the semiconductor layer Act), but in another embodiment, the thin film transistor TFT may be a bottom-gate thin film transistor.

[0246] The semiconductor layer Act may include polycrystalline silicon. In an alternative embodiment, the semiconductor layer Act may include amorphous silicon, an oxide semiconductor, or an organic semiconductor. The gate electrode GE may include a low-resistance metal material. The gate electrode GE may include a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu), or titanium (Ti), and may have a single-layer structure or a multi-layer structure including the above materials.

[0247] The gate insulating layer 113 between the semiconductor layer Act and the gate electrode GE may include an inorganic insulating material such as silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, or titanium oxide. The gate insulating layer 113 may include a single layer or a plurality of layers including the above materials.

[0248] The source electrode SE and the drain electrode DE may be disposed in the same layer (e.g., disposed on the second interlayer insulating layer 117), and may include the same material as each other. The source electrode SE and the drain electrode DE may each include a material having a relatively high conductivity. The source electrode SE and the drain electrode DE may each include a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu), or titanium (Ti), and may include a single layer or multiple layers including the above materials. In an embodiment, the source electrode SE and the drain electrode DE may be formed into a multilayer structure (Ti / Al / Ti) of a titanium layer, an aluminum layer, and a titanium layer. The second interlayer insulating layer 117 may include an inorganic insulating material such as silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, or titanium oxide, and may include a single layer or multiple layers including the above materials.

[0249] The storage capacitor Cst may include a first electrode CE1 and a second electrode CE2 that overlap each other, with the first interlayer insulating layer 115 between the first electrode CE1 and the second electrode CE2. The storage capacitor Cst may overlap the thin film transistor TFT. In this regard, Fig.151 shows that the gate electrode GE of the thin film transistor TFT is used as the first electrode CE1 of the storage capacitor Cst. In another embodiment, the storage capacitor Cst may not overlap with the thin film transistor TFT. The storage capacitor Cst may be covered by the second interlayer insulating layer 117. The second electrode CE2 of the storage capacitor Cst may include a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu) or titanium (Ti), and may have a single-layer structure or a multilayer structure including the above materials. The first interlayer insulating layer 115 may be disposed between the gate insulating layer 113 and the second interlayer insulating layer 117. The first interlayer insulating layer 115 may include an inorganic insulating material such as silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide or titanium oxide, and may include a single layer or multiple layers including the above materials.

[0250] like Fig.14 As shown in FIG. 1 , the size or area of ​​the inorganic insulating material layer IOL corresponding to the first island portion 11 may be smaller than the size or area of ​​the first island portion 11. Fig.15 , the size or area of ​​the inorganic insulating material layer IOL disposed on the substrate 100 may be smaller than the size or area of ​​the first base layer 101, the first barrier layer 102 and / or the second base layer 103 of the substrate 100. For example, the inorganic insulating material layer IOL on the substrate 100 may include a buffer layer 111, a gate insulating layer 113, a first interlayer insulating layer 115 and a second interlayer insulating layer 117.

[0251] like Fig.14 As shown in FIG. 1 , the edge of the inorganic insulating material layer IOL may be spaced inwardly from the edge of the first island portion 11 by a third separation distance ds3. Fig.15 As shown in FIG. 1 , the edge of the inorganic insulating material layer 101 may be spaced apart from the edge of the first base layer 101, the first barrier layer 102, and / or the second base layer 103 of the substrate 100 by a third separation distance ds3. The edge of the first base layer 101, the first barrier layer 102, and / or the second base layer 103 of the substrate 100 corresponding to the first island portion 11 may correspond to the edge of the first island portion 11.

[0252] refer to Fig.14 , near a corner of the first island portion 11 to which the first bridge portion 12 extends, an edge of the inorganic insulating material layer IOL may be spaced inwardly from an edge of the first island portion 11 by a fourth separation distance ds4. The fourth separation distance ds4 may have a value greater than that of the third separation distance ds3.

[0253] The third separation distance ds3 may be greater than the first separation distance ds1. The fourth separation distance ds4 may be greater than the second separation distance ds2. Fig.15As shown in , the edge of the inorganic insulating material layer IOL does not pass through the edge of the second substrate layer 103 and may be disposed on the upper surface of the second substrate layer 103 .

[0254] The edge of the inorganic insulating material layer 101 and the edge of the second barrier layer 104 may overlap the organic material layer OL. The organic material layer OL defines an opening corresponding to the central portion of the first island portion 11 and may have a frame shape extending along the edge of the first island portion 11.

[0255] The organic material layer OL may cover the edge of the inorganic insulating material layer 101 having a step difference with respect to the upper surface of the second barrier layer 104 and the edge of the second barrier layer 104. In an embodiment, the organic material layer OL may overlap the step difference. The organic material layer OL may include an organic insulating material such as polyimide.

[0256] The first organic insulating layer 119 may be disposed on the second interlayer insulating layer 117, and the second organic insulating layer 121 may be disposed on the first organic insulating layer 119. The first organic insulating layer 119 and the second organic insulating layer 121 may each include an organic insulating material such as polyimide.

[0257] The second voltage line VSSL may be disposed on the second organic insulating layer 121, and the third organic insulating layer 123 may be disposed on the second organic insulating layer 121. The third organic insulating layer 123 may include an organic insulating material such as polyimide. The second voltage line VSSL may include a conductive material including molybdenum (Mo), aluminum (Al), copper (Cu), or titanium (Ti), and may include a single layer or a plurality of layers including the above materials.

[0258] The first electrode pad 241 and the second electrode pad 242 may be disposed on the third organic insulating layer 123. The first electrode pad 241 may be electrically connected to the thin film transistor TFT through the first connector CM1 and the second connector CM2. The first connector CM1 is located between the first organic insulating layer 119 and the second organic insulating layer 121, and the second connector CM2 is located between the second organic insulating layer 121 and the third organic insulating layer 123. The inorganic light emitting diode 230 on the first electrode pad 241 and the second electrode pad 242 is similar to the inorganic light emitting diode 230 on the first organic insulating layer 119 and the second organic insulating layer 121. Figure 7B The light emitting diode (eg, inorganic light emitting diode 230) may be protected by encapsulation layer 300. Encapsulation layer 300 may include an inorganic encapsulation layer and / or an organic encapsulation layer or an organic material such as a resin. Fig.15 The LEDs shown are reference Figure 7B The inorganic light emitting diode 230 is described, but the light emitting diode may be a reference Fig. 7AAn organic light emitting diode 220 is described.

[0259] Fig.16A and Fig. 16B They are plan views respectively showing examples of the configuration of wirings on the first bridge portion 12 of the display device.

[0260] refer to Fig.16A , the wiring WL is disposed on the first bridge portion 12 and may be disposed biased toward the outer edge 12Eo of the first bridge portion 12. In an embodiment, the fifth separation distance ds5 between the inner edge 12Ei of the first bridge portion 12 and the wiring WL may be greater than the sixth separation distance ds6 between the outer edge 12Eo of the first bridge portion 12 and the wiring WL.

[0261] refer to Fig. 16B , a plurality of wirings (e.g., first to third wirings WL1, WL2, and WL3) are disposed on the first bridge portion 12, and may be disposed biased toward the outer edge 12Eo of the first bridge portion 12. In an embodiment, a fifth separation distance ds5′ between the third wiring WL3 closest to the inner edge 12Ei of the first bridge portion 12 and the inner edge 12Ei of the first bridge portion 12 may be greater than a sixth separation distance ds6′ between the first wiring WL1 closest to the outer edge 12Eo of the first bridge portion 12 and the outer edge 12Eo of the first bridge portion 12.

[0262] The display device in the embodiment may have Fig.16A and Fig. 16B One of the structures shown in FIG. 1 . A display device in another embodiment may have Fig.16A and Fig. 16B In the embodiment, Fig.16A The wiring WL shown in FIG. 1 can be provided in reference Fig.15 The second organic insulating layer 121 and the third organic insulating layer 123 are described. In addition, Fig. 16B The first to third wirings WL1, WL2, and WL3 shown in FIG. Fig.15 The first organic insulating layer 119 and the second organic insulating layer 121 are described. In other words, Fig.16A The wiring WL and Fig. 16B The first to third wirings WL1, WL2, and WL3 are arranged in different layers and can be electrically connected to the same pixel driving circuit PC (refer to Fig.15 ). In an embodiment, Fig.16A The wiring WL may be a second voltage line VSSL (reference Fig.15 ), and each of the first to third wirings WL1, WL2, and WL3 may be a scan line or a data line that supplies a data signal to the first island portion 11, or the like.

[0263] The display device in the embodiment can be used in various electronic devices that can display images. Here, the electronic device refers to a device that uses power and can display a preset image.

[0264] FIG. 17A to FIG. 17G Each of them is a perspective view of an embodiment of an electronic device including a display device.

[0265] refer to Fig.17A The display device in the embodiment can be used in a wearable electronic device 3100 that can be worn on a part of a user's body. The wearable electronic device 3100 may include a main body portion 3110 and a display 3120 provided on the main body portion 3110. The display device in the embodiment can be used as the display 3120 of the wearable electronic device 3100. Fig.17A As shown in , the wearable electronic device 3100 can be deformed. In an embodiment, depending on the user's choice, the wearable electronic device 3100 can be used as a smart watch or a smart phone.

[0266] Fig. 17B A medical electronic device 3200 is shown. In an embodiment, the medical electronic device 3200 may include a main body portion 3210 and an emission portion 3220. The display device in the embodiment may be used as the emission portion 3220 of the medical electronic device 3200. The emission portion 3220 may emit light in a preset band (e.g., infrared rays or visible light, etc.) to the patient's body. In an embodiment, the main body portion 3210 may include a stretchable fiber material and may have a structure that can be worn on the body of a user using the emission portion 3220.

[0267] Fig. 17C An educational electronic device 3300 is shown. In an embodiment, the educational electronic device 3300 may include a display 3320 provided inside the frame 3310. The display 3320 may use the display device in the embodiment. Images such as a sea with waves, a mountain covered with snow, or a volcano with flowing lava may be provided by the display 3320, and in this case, the display 3320 may extend in a height direction (e.g., z direction) to reflect the height of the waves, the mountain, or the volcano. In an embodiment, a portion of the display 3320 may display the movement of the lava in three dimensions by sequentially changing its height in the direction in which the lava flows. The educational electronic device (hereinafter, also referred to as an educational electronic device) 3300 may include a plurality of pins 3330 (or stroke portions) provided on the back of the display 3320 so that the display 3320 extends in the height direction. As the pins 3330 move in a third direction (e.g., z direction or -z direction), the image displayed on the display 3320 may be implemented as having a three-dimensional height. Although Fig. 17CThe educational electronic device 3300 is described, but the purpose of the electronic device is not limited as long as the electronic device provides preset image information.

[0268] although 17A to 17C The electronic device shown in is described as an electronic device whose shape is changeable, but the present disclosure is not limited thereto. As in the embodiments described below, the display device in the embodiment can be used in an electronic device in which a portion (eg, a screen) capable of displaying an image is fixed.

[0269] Fig.17D A robot 3400 is shown as an electronic device. The robot 3400 can move or recognize an object through a camera portion 3440, and can display a preset image to a user through displays 3420 and 3430. In an embodiment, since the display device in the embodiment described above can be stretched in various directions, the display device can be assembled to a main body frame having a hemispherical shape, and therefore, the robot 3400 can include displays 3420 and 3430 having a hemispherical shape.

[0270] Fig.17E A vehicle display device 3500 is shown as another electronic device. The vehicle display device 3500 may include an instrument panel 3510, a center information display ("CID") 3520, and / or a passenger display 3530. Since the display device in the embodiment can be stretched in various directions, the display device can be used as the instrument panel 3510, the CID 3520, and / or the passenger display (hereinafter, also referred to as the co-driver display) 3530 regardless of the shape of the internal frame of the vehicle.

[0271] Despite Fig.17E 35 shows that the instrument panel 3510, CID 3520 and / or the co-driver display 3530 are separated from each other, but the present disclosure is not limited thereto. In another embodiment, two or more of the instrument panel 3510, CID 3520 and the co-driver display 3530 may be integrally connected.

[0272] In an embodiment, the vehicle display device 3500 may further include a button 3540 that can display a preset image. Fig.17E , the button 3540 having a hemispherical shape may include an object 3542 that provides a feeling of using the button while moving in the z direction or the -z direction, and a display device disposed on the object 3542. In an embodiment, in the case where the object 3542 has a three-dimensionally rounded surface, the display device may also have a three-dimensionally rounded surface.

[0273] Fig.17FThe electronic device in the embodiment is an electronic device 3600 for advertisement or exhibition. In the embodiment, the electronic device 3600 for advertisement or exhibition can be installed on a structure 3610 such as a wall or a pillar. The structure 3610 includes Fig.17F In the case of the uneven surface shown in FIG. 36, the electronic device 3600 for advertisement or exhibition may also be arranged along the uneven surface of the structure 3610. In an embodiment, the electronic device 3600 for advertisement or exhibition may be mounted on the structure 3610 using a heat shrink film or the like.

[0274] Figure 17G The electronic device in the embodiment is shown to be a controller 3700. The controller 3700 may include an image type button. In an embodiment, the controller 3700 may include first to third button areas 3720, 3730, and 3740 in which a portion of the display 3710 protrudes in the z direction or protrudes in the -z direction (or collapses in the z direction). In an embodiment, the first button area 3720 and the third button area 3740 may protrude in the z direction, and the second button area 3730 may protrude in the -z direction (or collapse in the z direction).

[0275] In an embodiment, a display device in which damage due to concentration of stress can be prevented and which can be stretched in various directions can be provided. In an embodiment, electrical connection between elements constituting the display device can be stably maintained.

[0276] However, the above-mentioned effects are examples, and the present disclosure is not limited by these effects.

[0277] It should be understood that the embodiments described herein should be considered in a descriptive sense only and not for limiting purposes. The description of features or advantages within each embodiment should generally be considered to be applicable to other similar features or advantages in other embodiments. Although the embodiments have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes may be made thereto in form and detail without departing from the spirit and scope defined by the claims.

Claims

1. A display device, comprising a display area and a non-display area outside the display area, the display device comprising: first island portions arranged in the display area, the first island portions being spaced apart from each other in a row direction and a column direction; a first bridge portion, connecting two adjacent first island portions among the first island portions respectively; second island portions arranged in the non-display area, the second island portions being spaced apart from each other; as well as The second bridge portion connects two adjacent second island portions among the second island portions respectively. wherein a first width of each of the first island portions is smaller than a second width of each of the second island portions, and One of the second island portions corresponds to the first island portion in the i-th row among the first island portions and the first island portion in the i+1-th row among the first island portions, where i is a positive integer.

2. The display device according to claim 1, wherein: The one of the second island portions is connected to the first island portion in the i-th row and the first island portion in the (i+1)-th row through a third bridge portion.

3. The display device according to claim 2, wherein: The elongation rate of the non-display area is smaller than the elongation rate of the display area.

4. The display device according to claim 2, wherein: The non-display area includes: a first sub non-display area, the second island portion and the second bridge portion being arranged in the first sub non-display area; and a second sub non-display area disposed between the first sub non-display area and the display area, wherein the third bridge portion is arranged in the second sub non-display area, and Wherein, an elongation rate of the first sub non-display area is different from an elongation rate of the second sub non-display area.

5. The display device according to claim 4, wherein: The elongation rate of the second sub non-display area is smaller than the elongation rate of the first sub non-display area and the elongation rate of the display area.

6. The display device according to claim 4, wherein: The elongation rate of the second sub non-display area is greater than the elongation rate of the first sub non-display area and is less than the elongation rate of the display area.

7. The display device according to claim 1, wherein: Each of the first bridge portions is arranged between two adjacent first island portions that are adjacent to each other among the first island portions, each of the second bridge portions is arranged between two adjacent second island portions that are adjacent to each other among the second island portions, and a first distance between the two adjacent first island portions that are adjacent to each other is smaller than a second distance between the two adjacent second island portions that are adjacent to each other.

8. The display device according to claim 7, wherein: A ratio of the first distance to the first width of each of the first island portions is greater than a ratio of the second distance to the second width of each of the second island portions.

9. The display device according to claim 1, wherein: A width of each of the first bridge portions is smaller than a width of each of the second bridge portions.

10. The display device according to claim 1, wherein: Each of the first bridge portion and the second bridge portion has a serpentine shape.

11. The display device according to claim 10, wherein: Each of the first bridge portions comprises: two first rounded portions; and A straight portion is between the two first rounded portions.

12. The display device according to claim 11, wherein: The straight portion of each of the first bridge portions is inclined with respect to a side of an adjacent first island portion that is immediately adjacent to the straight portion among the first island portions.

13. The display device according to claim 11, wherein: Each of the two first rounded portions has an arc shape having a first central angle, and the first central angle is a reflex angle.

14. The display device according to claim 13, wherein: Each of the first bridge portions further includes two second rounded portions respectively connected to the two first rounded portions.

15. The display device according to claim 14, wherein: Each of the two second rounded portions has an arc shape having a second central angle, and the second central angle is smaller than the first central angle.

16. The display device according to claim 11, wherein: Each of the two first rounded portions of each of the first bridge portions includes an inner edge and an outer edge, and the inner edge has an irregular change.

17. The display device according to claim 10, wherein: Each of the second bridge portions has a shape different from a shape of each of the first bridge portions.

18. The display device according to claim 10, wherein: Each of the second bridge portions comprises: two first rounded portions; a first straight portion between the two first rounded portions; two second straight portions, respectively connected to the two first rounded portions; and Two second rounded portions are respectively connected to the two second straight portions.

19. The display device according to claim 18, wherein: The length of the first straight portion of each of the second bridge portions is greater than the length of each of the two second straight portions.

20. The display device according to claim 18, wherein: each of the two first rounded portions of each of the second bridge portions has an arc shape having a first central angle, wherein each of the two second rounded portions of each of the second bridge portions has an arc shape having a second central angle, and Wherein, the first central angle is greater than the second central angle.

21. The display device according to claim 1, wherein: Each of the first island portions includes an inorganic insulating layer including an inorganic insulating material, and an edge of the inorganic insulating layer is spaced apart from an edge of each of the first island portions.

22. The display device according to claim 21, further comprising: a substrate, below the inorganic insulating layer, wherein the substrate comprises a base layer and a barrier layer, the base layer comprises a polymer resin, and the barrier layer is disposed on the base layer and comprises an inorganic insulating material, and Wherein, an edge of the barrier layer is spaced apart from the edge of each of the first island portions.

23. The display device according to claim 22, wherein: The inorganic insulating layer and the barrier layer of the substrate form a step difference.

24. The display device according to claim 23, further comprising: An organic material layer covers the edge of the barrier layer and the edge of the inorganic insulating layer and overlaps the step difference.

25. The display device according to any one of claims 1 to 24, wherein: Each of the first island portions comprises: transistors; and a light emitting diode, electrically connected to the transistor, wherein a portion of the wiring of the transistor electrically connected to one of the first island portions is provided on a first bridge portion connected to the one of the first island portions among the first bridge portions, and A first separation distance between an inner edge of the first bridge portion and the wiring is greater than a second separation distance between an outer edge of the first bridge portion and the wiring.

26. A display device comprising a display area and a non-display area outside the display area, the display device comprising: first island portions arranged in the display area, the first island portions being spaced apart from each other in a row direction and a column direction; a first bridge portion, connecting two adjacent first island portions among the first island portions respectively; second island portions arranged in the non-display area, the second island portions being spaced apart from each other; as well as The second bridge portion connects two adjacent second island portions among the second island portions respectively. The shape of each of the second bridge portions is different from the shape of each of the first bridge portions.

27. The display device according to claim 26, wherein: Each of the first bridge portions and each of the second bridge portions has a serpentine shape, and a width of each of the second bridge portions is greater than a width of each of the first bridge portions.

28. The display device according to claim 26, wherein: The elongation rate of the non-display area is smaller than the elongation rate of the display area.

29. The display device according to claim 26, wherein: A first width of each of the first island portions is smaller than a second width of each of the second island portions, and a second island portion in the second island portions corresponds to a first island portion in the i-th row among the first island portions and a first island portion in the i+1-th row among the first island portions, where i is a positive integer.

30. The display device according to claim 29, further comprising: A third bridge portion connects the one of the second island portions to the first island portion in the i-th row and the first island portion in the (i+1)-th row, respectively.

31. The display device according to claim 29, wherein: Each of the first bridge portions is arranged between two adjacent first island portions that are adjacent to each other among the first island portions, each of the second bridge portions is arranged between two adjacent second island portions that are adjacent to each other among the second island portions, and a first distance between the two adjacent first island portions that are adjacent to each other is smaller than a second distance between the two adjacent second island portions that are adjacent to each other.

32. The display device according to claim 31, wherein: A ratio of the first distance to the first width of each of the first island portions is greater than a ratio of the second distance to the second width of each of the second island portions.

33. The display device according to claim 26, wherein: Each of the first bridge portions comprises: two first rounded portions; and A straight portion is between the two first rounded portions.

34. The display device according to claim 33, wherein: The straight portion of each of the first bridge portions is inclined with respect to a side of an adjacent first island portion that is immediately adjacent to the straight portion among the first island portions.

35. The display device according to claim 33, wherein: Each of the two first rounded portions has an arc shape having a first central angle, and the first central angle is a reflex angle.

36. The display device according to claim 35, wherein: Each of the first bridge portions further includes two second rounded portions respectively connected to the two first rounded portions, each of the two second rounded portions has an arc shape having a second central angle, and the second central angle is smaller than the first central angle.

37. The display device according to claim 33, wherein: Each of the two first rounded portions of each of the first bridge portions includes an inner edge and an outer edge, and the inner edge has an irregular change.

38. The display device according to claim 26, wherein: Each of the second bridge portions comprises: two first rounded portions; a first straight portion between the two first rounded portions; two second straight portions, respectively connected to the two first rounded portions; and Two second rounded portions are respectively connected to the two second straight portions.

39. The display device according to claim 38, wherein: The length of the first straight portion of each of the second bridge portions is greater than the length of each of the two second straight portions.

40. The display device according to claim 38, wherein: Each of the two first rounded portions of each of the second bridge portions has an arc shape having a first central angle, and each of the two second rounded portions of each of the second bridge portions has an arc shape having a second central angle, and Wherein, the first central angle is greater than the second central angle.

41. The display device according to claim 26, wherein: Each of the first island portions includes an inorganic insulating layer including an inorganic insulating material, and an edge of the inorganic insulating layer is spaced apart from an edge of each of the first island portions.

42. The display device according to claim 41, further comprising: a substrate, below the inorganic insulating layer, wherein the substrate comprises a base layer and a barrier layer, the base layer comprises a polymer resin, and the barrier layer is disposed on the base layer and comprises an inorganic insulating material, and Wherein, an edge of the barrier layer is spaced apart from the edge of each of the first island portions.

43. The display device according to claim 42, wherein: The inorganic insulating layer and the barrier layer of the substrate form a step difference.

44. The display device according to claim 43, further comprising: An organic material layer covers the edge of the barrier layer and the edge of the inorganic insulating layer and overlaps the step difference.

45. The display device according to any one of claims 26 to 44, wherein: Each of the first island portions comprises: transistors; and a light emitting diode, electrically connected to the transistor, wherein a portion of the wiring of the transistor electrically connected to one of the first island portions is provided on a first bridge portion connected to the one of the first island portions among the first bridge portions, and A first separation distance between an inner edge of the first bridge portion and the wiring is greater than a second separation distance between an outer edge of the first bridge portion and the wiring.

Images