Display device and method for manufacturing display device

Abstract

Disclosed in one embodiment of the present invention is a display device, comprising: a first film; and a display panel which is arranged on the first film, and which includes a display unit, a driver unit and a frame unit sequentially arranged in a first direction, wherein: the display unit includes a plurality of first island portions which are spaced apart from each other and which include light-emitting elements; the driver unit includes a plurality of second island portions which are spaced apart from each other and on which drivers for providing electrical signals to the light-emitting elements are arranged; the frame unit includes a plurality of third island portions which are spaced apart from each other in a second direction that crosses the first direction; and the elongation rate of the display unit, the driver unit and the frame unit are different from one another.

Description

Display device and method for manufacturing the display device

[0001] Embodiments of the present invention relate to devices and methods, and more particularly, to display devices and methods for manufacturing display devices.

[0002] As display devices that visually display electrical signals evolve, a variety of display devices with superior characteristics, such as thinness, light weight, and relatively low power consumption, are being introduced. For example, flexible display devices that can be folded or rolled are being introduced. Recently, active research and development is underway on stretchable display devices capable of transforming into various forms.

[0003] Embodiments of the present invention provide a flexible display device, for example, a stretchable display device.

[0004] One embodiment of the present invention discloses a display device including a first film; and a display panel disposed on the first film; wherein the display panel includes a display unit including a plurality of first island portions spaced apart from each other and including light-emitting elements; a driver unit including a plurality of second island portions spaced apart from each other and having drivers disposed to provide electrical signals to the light-emitting elements; and a frame unit including a plurality of third island portions spaced apart from each other along a second direction intersecting a first direction in which the display unit, the driver unit, and the frame unit are sequentially disposed, wherein an elongation of the display unit, an elongation of the driver unit, and an elongation of the frame unit are different from each other.

[0005] In this embodiment, the elongation of the driver portion in the first direction may be greater than the elongation of the frame portion.

[0006] In the present embodiment, the elongation of the frame portion in the second direction may be greater than the elongation of the driver portion.

[0007] In this embodiment, any one of the plurality of third island sections may extend to any one of the plurality of second island sections.

[0008] In the present embodiment, any one of the plurality of third island sections may extend to at least two of the plurality of second island sections.

[0009] In the present embodiment, at least two of the plurality of third island sections may have different numbers of extended second island sections.

[0010] In this embodiment, two adjacent second islands among the plurality of third islands may be symmetrical with respect to the center line between two adjacent third islands.

[0011] In this embodiment, the shapes of at least two of the plurality of third islands may be different from each other.

[0012] In the present embodiment, at least one of the plurality of third island portions may include a plurality of tooth portions spaced apart along the second direction; and a connecting portion extending from the plurality of tooth portions in the first direction so that the plurality of tooth portions extend from each other.

[0013] In this embodiment, the length of the third island portion in the second direction may be longer than the length of the second island portion in the second direction.

[0014] In this embodiment, the first film may include at least one material selected from the group consisting of an organosilicon compound (polydimethylsiloxane) and polyurethane.

[0015] In the present embodiment, a second film disposed on the display panel may be further included.

[0016] In this embodiment, the second film may be made of the same material as the first film.

[0017] Another embodiment of the present invention discloses a method for manufacturing a display device, comprising: arranging a display panel including a display unit, a driver unit, and an outer portion sequentially arranged along a first direction on a support substrate; arranging a support film on the display panel; removing the support substrate from the display panel; arranging the display panel on a first film; removing the support film from the display panel; and cutting the outer portion along a cutting line; wherein the outer portion includes a plurality of sawtooth portions spaced apart from each other along a second direction intersecting the first direction; and a connecting portion extending from the plurality of sawtooth portions toward the first direction such that the plurality of sawtooth portions extend from each other; wherein the cutting line overlaps at least one of a plurality of sawtooth openings defining between the plurality of sawtooth portions.

[0018] In this embodiment, the cutting line may overlap with an end of at least one of the plurality of sawtooth openings.

[0019] In the present embodiment, the cutting line may be spaced apart from at least one of the plurality of sawtooth openings.

[0020] In the present embodiment, the plurality of tooth openings may include a first tooth opening and a second tooth opening having a length longer in the first direction than the first tooth opening.

[0021] In this embodiment, the cutting line may be spaced apart from the first tooth opening and overlap with the second tooth opening.

[0022] In this embodiment, the first film may include at least one material selected from the group consisting of an organosilicon compound (polydimethylsiloxane) and polyurethane.

[0023] In this embodiment, the support film may have a modulus higher than the modulus of the first film.

[0024] In this embodiment, the support film may include a PET material.

[0025] In the present embodiment, the method may further include a step of placing a second film on the display panel.

[0026] In the present embodiment, the step of placing the second film on the display panel may be performed between the step of removing the support film from the display panel and the step of cutting the outer portion along a cutting line.

[0027] In the present embodiment, the step of placing the support film on the display panel may be a step of placing the support film on the second film.

[0028] In this embodiment, the second film may be made of the same material as the first film.

[0029] Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims and detailed description of the invention.

[0030] According to one embodiment of the present invention, a display device capable of preventing damage due to concentration of stress and being stretchable in various directions can be provided.

[0031] According to one embodiment of the present invention, a method for manufacturing a display device can be provided, which can manufacture a display device including a frame portion that can be extended through a simple and stable process.

[0032] These effects are exemplary and the scope of the present invention is not limited by the above-described effects.

[0033] FIG. 1 is a perspective view schematically illustrating a stretchable display device according to one embodiment of the present invention.

[0034] FIG. 2a and FIG. 2b are perspective views showing the stretchable display device of FIG. 1 stretched in the first direction.

[0035] Fig. 2c is a perspective view showing the stretchable display device of Fig. 1 stretched in the second direction.

[0036] FIG. 2d is a perspective view showing the stretchable display device of FIG. 1 stretched in the first direction and the second direction.

[0037] FIG. 2e is a perspective view showing the stretchable display device of FIG. 1 stretched in a third direction.

[0038] FIG. 3 is a schematic plan view of a stretchable display device according to one embodiment of the present invention.

[0039] FIG. 4a is an enlarged plan view of part IV of FIG. 3 as part of a stretchable display device according to one embodiment of the present invention.

[0040] FIG. 4b is an enlarged plan view of part IV of FIG. 3 as part of a stretchable display device according to one embodiment of the present invention.

[0041] FIG. 4c is an enlarged plan view of part IV of FIG. 3 as part of a stretchable display device according to one embodiment of the present invention.

[0042] FIG. 5 is a cross-sectional view schematically showing a first island portion and a first bridge portion arranged in a display area (DA) of a stretchable display device according to one embodiment of the present invention.

[0043] FIGS. 6A to 6C are equivalent circuit diagrams of subpixels of a stretchable display device according to one embodiment of the present invention, respectively.

[0044] FIG. 7a is a cross-sectional view schematically illustrating a light-emitting element of a stretchable display device according to one embodiment of the present invention.

[0045] FIG. 7b is a cross-sectional view schematically illustrating a light-emitting element of a stretchable display device according to one embodiment of the present invention.

[0046] FIG. 8 is a schematic cross-sectional view of a portion of a stretchable display device according to one embodiment of the present invention.

[0047] FIG. 9 is a schematic plan view of a portion of a stretchable display device according to one embodiment of the present invention.

[0048] FIGS. 10A and 10B are schematic plan views of a portion of a stretchable display device according to one embodiment of the present invention.

[0049] FIG. 11 is a schematic plan view of a portion of a stretchable display device according to one embodiment of the present invention.

[0050] FIG. 12A is a schematic cross-sectional view of a portion of a stretchable display device according to one embodiment of the present invention.

[0051] FIG. 12b is a schematic plan view of a portion of a stretchable display device according to one embodiment of the present invention.

[0052] FIGS. 12c and 12d are schematic cross-sectional views of a portion of a stretchable display device according to one embodiment of the present invention.

[0053] FIG. 12e is a schematic plan view of a portion of a stretchable display device according to one embodiment of the present invention.

[0054] FIGS. 12F and 12G are schematic cross-sectional views of a portion of a stretchable display device according to one embodiment of the present invention.

[0055] FIG. 13 is a schematic cross-sectional view of a portion of a stretchable display device according to one embodiment of the present invention.

[0056] FIGS. 14A to 14E are schematic cross-sectional views of a portion of a stretchable display device according to one embodiment of the present invention.

[0057] FIGS. 15A to 15D are schematic cross-sectional views of a portion of a stretchable display device according to one embodiment of the present invention.

[0058] FIG. 16 is a schematic plan view of a portion of a stretchable display device according to one embodiment of the present invention.

[0059] FIGS. 17A and 17B are schematic plan views of a portion of a stretchable display device according to one embodiment of the present invention.

[0060] FIGS. 18A and 18B are schematic plan views of a portion of a stretchable display device according to one embodiment of the present invention.

[0061] FIGS. 19A to 19G are perspective views schematically illustrating embodiments of an electronic device including a stretchable display device according to an embodiment of the present invention.

[0062] The present invention is capable of various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, as well as the methods for achieving them, will become clearer with reference to the embodiments described in detail below, along with the drawings. However, the present invention is not limited to the embodiments disclosed below and can be implemented in various forms.

[0063] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same drawing reference numerals, and redundant descriptions thereof will be omitted.

[0064] In the examples below, the terms first, second, etc. are not used in a limiting sense, but are used for the purpose of distinguishing one component from another.

[0065] In the examples below, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0066] In the examples below, terms such as “include” or “have” mean that a feature or component described in the specification is present, and do not preclude the possibility that one or more other features or components may be added.

[0067] In the following examples, when a part such as a film, region, component, etc. is said to be on or above another part, it includes not only a case where it is directly on top of the other part, but also a case where another film, region, component, etc. is interposed in between.

[0068] For convenience of explanation, the sizes of components in the drawings may be exaggerated or reduced. For example, the sizes and thicknesses of each component shown in the drawings are arbitrarily indicated for convenience of explanation, and thus the present invention is not necessarily limited to what is shown.

[0069] In the following examples, the x-axis, y-axis, and z-axis are not limited to three axes on an orthogonal coordinate system, and can be interpreted in a broad sense that includes them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may also refer to different directions that are not orthogonal to each other.

[0070] In some embodiments, where implementations are otherwise feasible, specific process sequences may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously, or in a reverse order from the described order.

[0071] Fig. 1 is a perspective view schematically illustrating a stretchable display device (1) according to one embodiment of the present invention. Figs. 2a and 2b are perspective views illustrating the stretchable display device (1) of Fig. 1 in a state in which it is stretched in a first direction. Fig. 2c is a perspective view illustrating the stretchable display device (1) of Fig. 1 in a state in which it is stretched in a second direction. Fig. 2d is a perspective view illustrating the stretchable display device of Fig. 1 in a state in which it is stretched in the first and second directions. Fig. 2e is a perspective view illustrating the stretchable display device (1) of Fig. 1 in a state in which it is stretched in a third direction.

[0072] Referring to FIG. 1, a stretchable 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 stretchable display device (1) may provide a predetermined image using light emitted from the plurality of pixels. The non-display area (NDA) may be arranged outside the display area (DA). The non-display area (NDA) may entirely surround the display area (DA).

[0073] A stretchable display device (1) can be stretched or shrunk in various directions. The stretchable display device (1) can be stretched in a first direction (e.g., the x direction and / or the -x direction) by an external force applied by an external object or a user. In one embodiment, as illustrated in FIGS. 2A and 2B, a display area (DA) and / or a non-display area (NDA) of the stretchable display device (1) can be stretched in the first direction (e.g., the x direction and / or the -x direction). In one embodiment, for example, as illustrated in FIG. 2A, the stretchable display device can be stretched along the x direction and the -x direction. In another embodiment, as illustrated in FIG. 2B, one side of the stretchable display device (1) can be fixed and stretched along the x direction.

[0074] The stretchable display device (1) can be stretched in a second direction (e.g., the y direction and / or the -y direction) by an external force applied by an external object or a user. In one embodiment, as illustrated in FIG. 2 c, the display area (DA) and / or the non-display area (NDA) of the stretchable display device (1) can be stretched in the y direction and the -y direction. In another embodiment, one side of the stretchable display device (1) can be fixed and stretched in the y direction or the -y direction.

[0075] A stretchable display device (1) can be stretched in a plurality of directions, for example, a first direction (e.g., an x ​​direction and / or a -x direction) and a second direction (e.g., a y direction and / or a -y direction) by an external force applied by an external object or a part of a human body. As illustrated in FIG. 2d, a display area (DA) and / or a non-display area (NDA) of the stretchable display device (1) can be stretched in the ±x direction and the ±y direction.

[0076] The stretchable display device (1) can be stretched in a third direction (e.g., the z direction or the -z direction) by an external force applied by an external object or a part of a human body. In one embodiment, FIG. 2e illustrates that a part of the stretchable display device (1), for example, a part of the display area (DA), protrudes in the z direction. In another embodiment, a part of the stretchable display device (1), for example, a part of the display area (DA), can protrude along the -z direction (or be sunken along the z direction).

[0077] Although FIGS. 2A to 2E illustrate the stretchable display device (1) being stretched in the first direction, the second direction, and / or the third direction, the present invention is not limited thereto. In another embodiment, the stretchable display device (1) may be variously deformed into an irregular shape, such as being bent or twisted along two or more axes.

[0078] FIG. 3 is a plan view schematically showing a stretchable display device (1) according to one embodiment of the present invention.

[0079] A plurality of pixels may be arranged in a display area (DA) of a stretchable display device (1). Each pixel may include subpixels that emit light of different colors. Light-emitting elements corresponding to the subpixels may be respectively arranged in the display area (DA). A circuit for providing electrical signals to the light-emitting elements arranged in the display area (DA) and to transistors electrically connected to the light-emitting elements may be located in a non-display area (NDA) surrounding the display area (DA). A gate driving circuit (GDC) may be respectively arranged in a first non-display area (NDA1) and a second non-display area (NDA2) arranged on opposite sides with the display area (DA) interposed therebetween. The gate driving circuit (GDC) may include drivers for providing electrical signals to gate electrodes of each of the transistors electrically connected to the light-emitting elements. Although FIG. 3 illustrates that a gate driving circuit (GDC) is arranged in each of the first non-display area (NDA1) and the second non-display area (NDA2), the present invention is not limited thereto. In another embodiment, the gate driving circuit (GDC) may be arranged in either the first non-display area (NDA1) or the second non-display area (NDA2).

[0080] The data drive circuit (DDC) may be disposed in a third non-display area (NDA3) and / or a fourth non-display area (NDA4) connecting the first non-display area (NDA1) and the second non-display area (NDA2). In one embodiment, FIG. 3 illustrates that the data drive circuit (DDC) is disposed in the fourth non-display area (NDA4). In another embodiment, the data drive circuit (DDC) may be disposed in each of the third non-display area (NDA3) and the fourth non-display area (NDA4).

[0081] Although Fig. 3 illustrates that the data drive circuit (DDC) is arranged in the fourth non-display area (NDA4) of the stretchable display device (1), the present invention is not limited thereto. In another embodiment, the stretchable display device (1) may further include a flexible circuit board (not shown) electrically connected through a terminal portion (not shown) arranged in the fourth non-display area (NDA4), and the data drive circuit (DDC) may be arranged on the aforementioned flexible circuit board.

[0082] In some embodiments, the elongation rate of the non-display area (NDA) may be equal to or less than the elongation rate of the display area (DA). In one embodiment, the elongation rates of the non-display areas (NDAs) may be different for each area. In one embodiment, for example, the first non-display area (NDA1), the second non-display area (NDA2), and the third non-display area (NDA3) may have substantially the same elongation rates, but the elongation rate of the fourth non-display area (NDA4) may be less than the elongation rates of each of the first non-display area (NDA1), the second non-display area (NDA2), and the third non-display area (NDA3).

[0083] FIG. 4a is an enlarged plan view of part IV of FIG. 3 as part of a stretchable display device (1) according to one embodiment of the present invention.

[0084] Referring to FIG. 4A, the stretchable display device (1) may include first island portions (11) spaced apart from each other along a first direction (e.g., x direction or -x direction) and a second direction (e.g., y direction or -y direction) in a display area (DA), and first bridge portions (12) connecting adjacent first island portions (11).

[0085] Each first island portion (11) may be connected to a plurality of first bridge portions (12). In one embodiment, each first island portion (11) may be connected to four first bridge portions (12). Two first bridge portions (12) may be arranged on opposite sides of the first island portion (11) along a first direction (e.g., x direction or -x direction), and the remaining two first bridge portions (12) may be arranged on opposite sides of the first island portion (11) along a second direction (e.g., y direction or -y direction). In one embodiment, four first bridge portions (12) may be connected to four side edges of the first island portion (11), respectively. Each of the four first bridge portions (12) may be adjacent to each corner of the first island portion (11).

[0086] The first bridge portions (12) may be spaced apart from each other by first openings (CS1) defined between the first bridge portions (12). In one embodiment, the first openings (CS1) having an approximately H shape and the first openings (CS1) having an approximately I shape obtained by rotating the aforementioned H shape by 90 degrees may be alternately and repeatedly arranged along the first direction (e.g., the x direction or the -x direction) and the second direction (e.g., the y direction or the -y direction). The opposite ends of each first bridge portion (12) are connected to each of the adjacent first island portions (11), and one side of each first bridge portion (12) may be spaced apart from one side of the adjacent first island portion (11) and / or one side of another first bridge portion (12) by the first openings (CS1).

[0087] The stretchable display device (1) may include second island portions (21) that are spaced apart from each other in a non-display area, for example, the first non-display area (NDA1) illustrated in FIG. 4A, and second bridge portions (22) that extend to adjacent second island portions (21).

[0088] Each second island portion (21) may extend along a first direction (e.g., the x direction or the -x direction). The second island portions (21) may be spaced apart from each other along 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 second island portion (21) may include drivers of a gate drive circuit (GDC, FIG. 2) described with reference to FIG. 3.

[0089] The second bridge portion (22) may have a serpentine shape. The length of the second bridge portion (22) may be greater than the shortest distance between adjacent second island portions (21) along the second direction (e.g., the y direction or the -y direction). In one embodiment, the second bridge portion (22) may have a shape of approximately omega (Ω) that is convex toward the first direction (e.g., the x direction or the -x direction). The second bridge portions (22) may be arranged between adjacent second island portions (21), but may be spaced apart from each other.

[0090] The second bridge portions (22) between adjacent second island portions (21) can be spaced apart from each other by the second opening portions (CS2). Between the adjacent second island portions (21), the second opening portions (CS2) and the second bridge portions (22) can be alternately defined and arranged along the first direction (e.g., the x direction or the -x direction). The second opening portions (CS2) can have the same shape. The opposite ends of each second bridge portion (22) are connected to the adjacent second island portions (21), but one side of each second bridge portion (22) can be spaced apart from the side of the adjacent second island portion (21) and / or one side of another second bridge portion (22) by the second opening portions (CS2).

[0091] Any one of the second island portions (21) arranged in the first non-display area (NDA1) may correspond to the first island portions (11) of a plurality of rows arranged in the display area (DA). In one embodiment, for example, any one of the second island portions (21) arranged in the first non-display area (NDA1) may correspond to the first island portions (11) arranged in the (i)-th row and the first island portions (11) arranged in the (i+1)-th row in the display area (DA) (wherein, i is a positive number greater than 0). Although FIG. 4A illustrates that one second island portion (21) corresponds to two rows of the first island portions (11), the present invention is not limited thereto. In another embodiment, any one of the second island portions (21) arranged in the first non-display area (NDA1) may correspond to n rows of the first island portions (11) arranged in the display area (DA) (where n is a positive integer greater than or equal to 3).

[0092] A non-display area, for example, a first non-display area (NDA1), may include a first sub-non-display area (SNDA1) in which the second island portions (21) and the second bridge portions (22) described above are arranged, and a second sub-non-display area (SNDA2) between the first sub-non-display area (SNDA1) and the display area (DA). In the second sub-non-display area (SNDA2), third bridge portions (23) may be arranged so that the display area (DA) and the first sub-non-display area (SNDA1) extend from each other. One end of the third bridge portion (23) may be connected 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).

[0093] The third bridge portion (23) may have a serpentine shape. In one embodiment, the shape of the third bridge portion (23) may be different from the shapes of each of the first bridge portion (12) and the second bridge portion (22). In one embodiment, as illustrated in FIG. 4A, the third bridge portion (23) may have a shape of approximately omega (Ω) that is convex in the second direction (e.g., the y direction or the -y direction). Among adjacent third bridge portions (23) arranged along the second direction (e.g., the y direction or the -y direction), one may have a structure that is symmetrical to each other, such as being convex in the y direction and the other being convex in the -y direction. Between the third bridge portions (23), the third opening portions (CS3) and the fourth opening portions (CS4) of different shapes may have a structure in which they are repeated. 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 one embodiment, the width of the third bridge portion (23) may be larger than the width of the first bridge portion (12) and smaller than the width of the second bridge portion (22).

[0094] FIG. 4a shows that the second island portion (21) and the second bridge portion (22) of the non-display area, for example, the first non-display area (NDA1), have different shapes from the first island portion (11) and the first bridge portion (12) of the display area (DA), respectively. In another embodiment of the present invention, the second island portion (21) and the second bridge portion (22) of the non-display area may have the same shapes as the first island portion (11) and the first bridge portion (12) of the display area (DA), respectively.

[0095] FIG. 4b is an enlarged plan view of part IV of FIG. 3 as part of a stretchable display device (1) according to one embodiment of the present invention.

[0096] Referring to Fig. 4b, the stretchable display device (1) includes first island portions (11) that are spaced apart from each other in the display area (DA) and first bridge portions (12) that connect adjacent first island portions (11) that are spaced apart from each other by a first opening (CS1). The structure of the display area (DA) of Fig. 4b may be the same as the structure of the display area (DA) described above with reference to Fig. 4a.

[0097] A stretchable display device (1) may include second island portions (21) and second bridge portions (22) arranged in a non-display area, for example, a first non-display area (NDA1). In one embodiment, the second island portions (21) and the second bridge portions (22) may have substantially the same shape as the first island portions (11) and the first bridge portion (12), respectively.

[0098] The second island portions (21) can be spaced apart from each other in a first direction (e.g., x direction or -x direction) and a second direction (e.g., y direction or -y direction) in a non-display area, for example, a first non-display area (NDA1). Each of the second bridge portions (22) can connect adjacent second island portions (21). The second bridge portions (22) can be spaced apart from each other by a second opening (CS2) located between the second bridge portions (22).

[0099] The second opening (CS2) may have substantially the same shape as the first opening (CS1). For example, the second opening (CS2) having an approximately H shape and the second opening (CS2) having an approximately I shape may be alternately and repeatedly arranged in a non-display area, for example, the first non-display area (NDA1). The opposite ends of each second bridge portion (22) are connected to each of the adjacent second island portions (21), and one side of each second bridge portion (2) may be spaced apart from one side of the adjacent second island portion (21) and / or one side of another second bridge portion (22) by the second opening (CS2).

[0100] Each second island section (21) can be connected to four second bridge sections (22). Each second island section (21) can include drivers of the gate drive circuit (GDC, FIG. 2) described with reference to FIG. 3.

[0101] The second island portions (21) of any one row arranged in the first non-display area (NDA1) may correspond to the first island portions (11) of any one row arranged in the display area (DA). In one embodiment, for example, the second island portions (21) arranged in the (i)th row along 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, for example, the (i)th row, in the display area (DA) (wherein, i is a positive number greater than 0).

[0102] A stretchable display device (1) may include third bridge units (23) arranged in a second sub-non-display area (SNDA2) for connecting a display area (DA) and a first sub-non-display area (SNDA1). The non-display area, for example, the first non-display area (NDA1), may include a first sub-non-display area (SNDA1) in which second island units (21) and second bridge units (22) are arranged, and a second sub-non-display area (SNDA2) including third bridge units (23) and positioned between the first sub-non-display area (SNDA1) and the display area (DA). The third bridge unit (23) may be substantially the same as the first bridge unit (12) and the second bridge unit (22). In one embodiment, for example, the width of the third bridge unit (23) may be the same as the width of the first bridge unit (12) and the width of the second bridge unit (22).

[0103] FIG. 4c is an enlarged plan view of part IV of FIG. 3 as part of a stretchable display device according to one embodiment of the present invention.

[0104] Referring to FIG. 4c, the stretchable display device (1) may include first island portions (11) spaced apart from each other in a first direction (e.g., x direction or -x direction) and a second direction (e.g., y direction or -y direction) in the display area (DA), and first bridge portions (12) extending to adjacent first island portions (11).

[0105] The first bridge portions (12) may be arranged to 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 winding shape. In one embodiment, for example, as illustrated in FIG. 4c, the first bridge portion (12) may have a shape roughly like the letter 'S'.

[0106] Each first island portion (11) may extend into a plurality of first bridge portions (12). In one embodiment, for example, each first island portion (11) may extend into four first bridge portions (12). Two first bridge portions (12) may be arranged on opposite sides of the first island portion (11) along a first direction (e.g., x direction or -x direction), and the remaining two first bridge portions (12) may be arranged on opposite sides of the first island portion (11) along a second direction (e.g., y direction or -y direction). The four first bridge portions (12) may extend into four side edges of the first island portion (11), respectively. Each of the four first bridge portions (12) may be adjacent to each corner of the first island portion (11).

[0107] The stretchable display device (1) may include second island portions (21) spaced apart from each other in a first direction (e.g., x direction or -x direction) and a second direction (e.g., y direction or -y direction) in a non-display area, for example, a first non-display area (NDA1) illustrated in FIG. 4c, and second bridge portions (22) extending to adjacent second island portions (21).

[0108] The second bridge portions (22) may be arranged to 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 winding shape. In one embodiment, for example, as illustrated in FIG. 4C, the second bridge portion (22) may have approximately the shape of 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 one embodiment, for example, the size and / or width of the second bridge portion (22) may be larger 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 one 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).

[0109] Each second island portion (21) may be extended to a plurality of second bridge portions (22). Each second island portion (21) may be extended to four second bridge portions (22). Two second bridge portions (22) may be arranged on opposite sides of the second island portion (21) along a first direction (e.g., the x direction or the -x direction), and the remaining two second bridge portions (22) may be arranged on opposite sides of the second island portion (21) along a second direction (e.g., the y direction or the -y direction). In one embodiment, the four second bridge portions (22) may be extended to the four side edges of the second island portion (21), respectively. Each second bridge portion (22) may be extended to the central portion of each side edge of the second island portion (21).

[0110] The second island portions (21) of any one row arranged in the first non-display area (NDA1) may correspond to the first island portions (11) of a plurality of rows arranged in the display area (DA). In one embodiment, for example, the second island portions (21) of any one row arranged in the first non-display area (NDA1) may correspond to the first island portions (11) arranged in the (i)-th row of the display area (DA) and the first island portions (11) arranged in the (i+1)-th row (wherein i is a positive integer greater than 0). In another embodiment, the second island portions (21) of any one row may correspond to n rows of the first island portions (11) (wherein n is a positive integer greater than 3).

[0111] A non-display area, for example, a first non-display area (NDA1), may include a first sub-non-display area (SNDA1) in which the second island portions (21) and second bridge portions (22) described above are arranged, and a second sub-non-display area (SNDA2) between the first sub-non-display area (SNDA1) and the display area (DA). In the second sub-non-display area (SNDA2), third bridge portions (23) may be arranged so that the display area (DA) and the first sub-non-display area (SNDA1) extend from each other. 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 one embodiment, for example, one end of the third bridge portion (23) may extend to the central portion of one side of the second island portion (21), and the other end of the third bridge portion (23) may extend to the central portion of one side of the first island portion (11).

[0112] The third bridge portion (23) may have a serpentine shape. In one embodiment, the shape of the third bridge portion (23) may be different from the shapes 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 larger than the width of the first bridge portion (12) and smaller than the width of the second bridge portion (22). Third openings (CS3) and fourth openings (CS4) of different shapes may be alternately defined between the third bridge portions (23) in the second direction (e.g., the y direction or the -y direction).

[0113] FIG. 5 is a cross-sectional view schematically showing a first island portion (11) and a first bridge portion (12) arranged in a display area (DA) of a stretchable display device (1) according to one embodiment of the present invention.

[0114] Referring to Fig. 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 with the first opening (CS1) therebetween. The first island portion (11) includes light-emitting elements (LEDs) and a circuit for driving the light-emitting elements electrically connected thereto, for example, a pixel driving circuit portion (PC), and the first bridge portion (12) may include wiring (WL) electrically connected to pixel driving circuit portions (PC) arranged in each of the adjacent first island portions (11).

[0115] Looking at the first island portion (11), a buffer layer (111) including an inorganic insulator is disposed on a substrate (100), and a pixel driver circuit (PC) may be disposed on the buffer layer (111). An insulating layer (IL) including an inorganic insulator and / or an organic insulator may be disposed between the pixel driver circuit (PC) and the light emitting element (LED). The light emitting element (LED) is disposed on the insulating layer (IL) and may be electrically connected to a corresponding pixel driver circuit (PC). The light emitting elements (LED) may emit light of different colors or the same color. In one embodiment, the light emitting elements (LED) may emit red, green, and blue light, respectively. In some embodiments, the light emitting elements (LED) may emit white light. In another embodiment, the light emitting elements (LED) may emit red, green, blue, and white light, respectively.

[0116] The substrate (100) may include a polymer resin such as polyethersulfone, polyarylate, polyether imide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyimide, polycarbonate, cellulose triacetate, or cellulose acetate propionate. In one embodiment, the substrate (100) may be a single layer including the aforementioned polymer resin. In another embodiment, the substrate (100) may be a multilayer structure including a base layer including the aforementioned polymer resin and a barrier layer including an inorganic insulating material. The substrate (100) including the polymer resin may have flexible, rollable, and bendable properties.

[0117] In one embodiment, FIG. 5 illustrates three pixel driver circuits (PCs) arranged in each first island portion (11) and three light-emitting elements (LEDs) connected to each pixel driver circuit portion (PC), but the present invention is not limited thereto. In another embodiment, the number of pixel driver circuits (PCs) and light-emitting elements (LEDs) arranged in the first island portion (11) may be one, two, four or more.

[0118] The encapsulation layer (300) may be disposed on a light-emitting element (LED) and may protect the light-emitting element (LED) from external force and / or moisture permeation. The encapsulation layer (300) may include an inorganic encapsulation layer and / or an organic encapsulation layer. In some embodiments, the encapsulation layer (300) may include a structure in which an inorganic encapsulation layer 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 laminated. In other embodiments, the encapsulation layer (300) may include an organic material such as a resin. In some embodiments, the encapsulation layer (300) may include urethane epoxy acrylate. The encapsulation layer (300) may include a photosensitive material, for example, a material such as a photoresist.

[0119] Looking at the first bridge portion (12), an insulating layer (IL) including an organic insulating material may be placed on the substrate (100). When the stretchable display device (1) is stretched, the first bridge portion (12), which is relatively subject to a large deformation, may not have a layer including an inorganic insulating material that is prone to cracking, unlike the first island portion (11).

[0120] In one embodiment, the substrate (100) corresponding to the first bridge portion (12) may have the same laminated structure as the substrate (100) corresponding to the first island portion (11). In one embodiment, the substrate (100) corresponding to the first bridge portion (12) and the substrate (100) corresponding to the first island portion (11) may be polymer resin layers formed together in the same process. In another embodiment, the substrate (100) corresponding to the first bridge portion (12) may have a different laminated structure from the substrate (100) corresponding to the first island portion (11). In some embodiments, the substrate (100) corresponding to the first bridge portion (12) 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.

[0121] The wirings (WL) of the first bridge unit (12) may be signal lines (e.g., gate lines, data lines, etc.) for providing electrical signals to transistors included in the pixel driving circuit unit (PC) of the first island unit (11), as described above, or voltage lines (e.g., driving voltage lines, initialization voltage lines, etc.) for providing voltage. An encapsulation layer (300) may also be arranged in the first bridge unit (12). In another embodiment, the encapsulation layer (300) may not be present in the first bridge unit (12).

[0122] Referring to FIGS. 4A to 4C and FIG. 5, the substrate (100) corresponding to the first island portion (11) and the substrate (100) corresponding to the first bridge portion (12) may be connected or extended to each other. In other words, the plan views illustrated in FIGS. 4A to 4C may be substantially the same as the plan view of the substrate (100) of FIG. 5. In other words, the substrate (100) may define an area corresponding to the first island portion (11), an area corresponding to the first bridge portion (12), and an opening (100OP1) having the same shape as the first opening (CS1).

[0123] Similarly, the sealing layer (300) corresponding to the first island portion (11) and the sealing layer (300) corresponding to the first bridge portion (12) may be connected or extended to each other. In one embodiment, for example, the plan views illustrated in FIGS. 4A to 4C above may be substantially the same as the plan view of the sealing layer (300). In other words, the sealing layer (300) may define an area corresponding to the first island portion (11), an area corresponding to the first bridge portion (12), and an opening (300OP1) having the same shape as the first opening (CS1).

[0124] The circuit-light-emitting element layer (200) between the substrate (100) and the encapsulation layer (300) may include a buffer layer (111), a pixel driver circuit (PC), a wiring (WL), an insulating layer (IL), and a light-emitting element (LED). Similar to the substrate (100), the plan views previously illustrated in FIGS. 4A to 4C may be substantially identical to the plan views of the circuit-light-emitting element layer (200). In other words, the circuit-light-emitting element layer (200) may define an opening (200OP1) having the same shape as the first opening (CS1).

[0125] FIGS. 6A to 6C are equivalent circuit diagrams of subpixels of a stretchable display device (1) according to one embodiment of the present invention, respectively.

[0126] Referring to FIG. 6a, a light emitting element (LED) corresponding to a subpixel is electrically connected to a pixel driver circuit (PC), and the pixel driver circuit (PC) may include a first transistor (T1), a second transistor (T2), and a storage capacitor (Cst). The pixel driver circuit (PC) may be electrically connected to a signal line and a voltage line. The signal line may include a gate line such as a first scan line (SL1) and a data line (DL), and the voltage line may include a first voltage line (VDDL).

[0127] The second transistor (T2) can be electrically connected to the first scan line (SL1) and the data line (DL). The first scan line (SL1) can provide a first scan signal (GW1) to a gate electrode of the second transistor (T2). The second transistor (T2) can transmit a data signal (Dm) input from the data line (DL) to the first transistor (T1) according to the first scan signal (GW1) input from the first scan line (SL1).

[0128] The storage capacitor (Cst) is electrically connected to the second transistor (T2) and the first voltage line (VDDL), and can store a voltage corresponding to the difference between the voltage received from the second transistor (T2) and the first power voltage (VDD) supplied by the first voltage line (VDDL).

[0129] The first transistor (T1) is a driving transistor and can control a driving current flowing through a light-emitting element (LED). The first transistor (T1) can be connected to a first voltage line (VDDL) and a storage capacitor (Cst). The first transistor (T1) can control a driving current flowing through the light-emitting element (LED) from the first voltage line (VDDL) in response to a voltage value stored in the storage capacitor (Cst). The light-emitting element (LED) can emit light having a predetermined brightness by the driving current. A first electrode of the light-emitting element (LED) can be electrically connected to the first transistor (T1), and a second electrode can be electrically connected to a second voltage line (VSSL) that supplies a second power voltage (VSS).

[0130] Although FIG. 6a illustrates that the pixel driver circuit (PC) includes two transistors and one storage capacitor, in other embodiments, the pixel driver circuit (PC) may include three or more transistors.

[0131] Referring to FIG. 6b, the pixel driving circuit unit (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).

[0132] The pixel driver circuit (PC) is electrically connected to signal lines and voltage lines. The signal lines may include gate lines such as a first scan line (SL1), a second scan line (SL2), a third scan line (SL3), and an emission control line (EML), and a data line (DL). The voltage lines may include first and second initialization voltage lines (VIL1, VIL2) and a first voltage line (VDDL).

[0133] The first voltage line (VDDL) can transmit the first power voltage (VDD) to the first transistor (T1). The first initialization voltage line (VIL1) can transmit the first initialization voltage (Vint) that initializes the first transistor (T1) to the pixel driver circuit (PC). The second initialization voltage line (VIL2) can transmit the second initialization voltage (Vaint) that initializes the first electrode of the light-emitting element (LED) to the pixel driver circuit (PC).

[0134] The first transistor (T1) may be electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and may be electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The first transistor (T1) functions as a driving transistor, and receives a data signal (Dm) according to the switching operation of the second transistor (T2) to supply a driving current to the light-emitting element (LED).

[0135] The second transistor (T2) is a data writing transistor and is electrically connected to the first scan line (SL1) and the data line (DL). The second transistor (T2) is electrically connected to the first voltage line (VDDL) via the fifth transistor (T5). The second transistor (T2) is turned on in response to the first scan signal (GW) received through the first scan line (SL1) and performs a switching operation to transmit the data signal (Dm) transmitted to the data line (DL) to the first node (N1).

[0136] The third transistor (T3) is electrically connected to the first scan line (SL1) and is electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The third transistor (T3) can be turned on in response to the first scan signal (GW) received through the first scan line (SL1) to diode-connect the first transistor (T1).

[0137] The fourth transistor (T4) is a first initialization transistor and is electrically connected to the third scan line (SL3) and the first initialization voltage line (VIL1). The fourth transistor (T4) is turned on according to the third scan signal (GI) received through the third scan line (SL3) and transmits the first initialization voltage (Vint) from the first initialization voltage line (VIL1) to the gate electrode of the first transistor (T1) to initialize the voltage of the gate electrode of the first transistor (T1). The third scan signal (GI) may correspond to the first scan signal of another pixel driver circuit unit arranged in the previous row of the corresponding pixel driver circuit unit (PC).

[0138] The fifth transistor (T5) may be a motion control transistor, and the sixth transistor (T6) may be a light emission control transistor. The fifth transistor (T5) and the sixth transistor (T6) are electrically connected to the light emission control line (EML), and are turned on simultaneously according to the light emission control signal (EM) transmitted through the light emission control line (EML), thereby forming a current path so that a driving current can flow from the first voltage line (VDDL) in the direction of the light emitting element (LED).

[0139] The seventh transistor (T7) is a second initialization transistor and can be electrically connected to the second scan line (SL2), the second initialization voltage line (VIL2), and the sixth transistor (T6). The seventh transistor (T7) is turned on according to the second scan signal (GB) transmitted through the second scan line (SL2), and can transmit the second initialization voltage (Vaint) from the second initialization voltage line (VIL2) to the first electrode of the light-emitting element (LED) to initialize the first electrode of the light-emitting element (LED).

[0140] A 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 the voltages at both ends of the first voltage line (VDDL) and the gate electrode of the first transistor (T1).

[0141] Referring to FIG. 6c, the pixel driving circuit unit (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).

[0142] The pixel driver circuit (PC) is electrically connected to signal lines and voltage lines. The signal lines may include gate lines such as a first scan line (SL1), a second scan line (SL2), a third scan line (SL3), and an emission control line (EML), and a data line (DL). The voltage lines may include first and second initialization voltage lines (VIL1, VIL2), a sustain voltage line (VSL), and a first voltage line (VDDL).

[0143] The first voltage line (VDDL) can transmit a first power voltage (VDD) to the first transistor (T1). The first initialization voltage line (VIL1) can transmit a first initialization voltage (Vint) for initializing the first transistor (T1) to the pixel driver circuit (PC). The second initialization voltage line (VIL2) can transmit a second initialization voltage (Vaint) for initializing the first electrode of the light-emitting element (LED) to the pixel driver circuit (PC). The sustain voltage line (VSL) can provide a sustain voltage (VSUS) to the second node (N2), for example, the second electrode (CE2) of the storage capacitor (Cst), during the initialization period and the data writing period.

[0144] The first transistor (T1) may be electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and the eighth transistor (T8), and may be electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The first transistor (T1) functions as a driving transistor, and may receive a data signal (Dm) according to the switching operation of the second transistor (T2) to supply a driving current to the light-emitting element (LED).

[0145] The second transistor (T2) is electrically connected to the first scan line (SL1) and the data line (DL), and is electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and the eighth transistor (T8). The second transistor (T2) is turned on in response to the first scan signal (GW) received through the first scan line (SL1) and performs a switching operation to transmit the data signal (Dm) transmitted to the data line (DL) to the first node (N1).

[0146] The third transistor (T3) is electrically connected to the first scan line (SL1) and is electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The third transistor (T3) is turned on in response to the first scan signal (GW) received through the first scan line (SL1), thereby diode-connecting the first transistor (T1), thereby compensating for the threshold voltage of the first transistor (T1).

[0147] The fourth transistor (T4) is electrically connected to the third scan line (SL3) and the first initialization voltage line (VIL1), and is turned on in response to the third scan signal (GI) transmitted through the third scan line (SL3) to transmit the first initialization voltage (Vint) from the first initialization voltage line (VIL1) to the gate electrode of the first transistor (T1) to initialize the voltage of the gate electrode of the first transistor (T1). The third scan signal (GI) may correspond to the first scan signal of another pixel driving circuit unit arranged in the previous row of the corresponding pixel driving circuit unit (PC).

[0148] The fifth transistor (T5), the sixth transistor (T6), and the eighth transistor (T8) are electrically connected to the light emission control line (EML), and are simultaneously turned on in response to the light emission control signal (EM) transmitted through the light emission control line (EML), thereby forming a current path so that a driving current can flow from the first voltage line (VDDL) in the direction of the light emitting element (LED).

[0149] The seventh transistor (T7) is a second initialization transistor and can be electrically connected to the second scan line (SL2), the second initialization voltage line (VIL2), and the sixth transistor (T6). The seventh transistor (T7) is turned on in response to the second scan signal (GB) received through the second scan line (SL2) and transmits the second initialization voltage (Vaint) from the second initialization voltage line (VIL2) to the first electrode of the light-emitting element (LED) to initialize the first electrode of the light-emitting element (LED).

[0150] The ninth transistor (T9) can be electrically connected to the second scan line (SL2), the second electrode (CE2) of the storage capacitor (Cst), and the sustain voltage line (VSL). The ninth transistor (T9) is turned on according to the second scan signal (GB) transmitted through the second scan line (SL2), and can transmit the sustain voltage (VSUS) to the second node (N2), for example, the second electrode (CE2) of the storage capacitor (Cst), during the initialization section and the data writing section.

[0151] The eighth transistor (T8) and the ninth transistor (T9) may be electrically connected to a second node (N2), for example, a second electrode (CE2) of a storage capacitor (Cst), respectively. In some embodiments, the eighth transistor (T8) may be turned off and the ninth transistor (T9) may be turned on in an initialization period and a data writing period, and the eighth transistor (T8) may be turned on and the ninth transistor (T9) may be turned off in an emission period. Since the sustain voltage (VSUS) is transmitted to the second node (N2) in the initialization period and the data writing period, the uniformity of the luminance (e.g., LRU, Long Range Uniformity) of the stretchable display device according to the voltage drop of the first voltage line (VDDL) may be improved.

[0152] 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).

[0153] The auxiliary capacitor (Ca) can be electrically connected to the sixth transistor (T6), the sustain voltage line (VSL), and the first electrode of the light-emitting element (LED). The auxiliary capacitor (Ca) stores and maintains a voltage corresponding to the voltage difference between the first electrode of the light-emitting element (LED) and the sustain voltage line (VSL) while the seventh transistor (T7) and the ninth transistor (T9) are turned on, thereby preventing the problem of the black luminance increasing when the sixth transistor (T6) is turned off.

[0154] FIG. 7a is a cross-sectional view schematically illustrating a light-emitting element of a stretchable display device according to one embodiment of the present invention.

[0155] Referring to FIG. 7A, a light-emitting element according to one embodiment of the present invention 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 a light-emitting layer (223) interposed between the first electrode (221) and the second electrode (225). A first functional layer (222) may be disposed between the first electrode (221) and the light-emitting layer (223), and a second functional layer (224) may be disposed between the light-emitting layer (223) and the second electrode (225).

[0156] The edge of the first electrode (221) may be covered with a bank layer (BKL) including an insulating material. An opening (B-OP) overlapping the central portion of the first electrode (221) may be defined in the bank layer (BKL).

[0157] The first electrode (221) may include a conductive oxide such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or aluminum zinc oxide (AZO). In another embodiment, the first electrode (221) may include a reflective layer including silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or a compound thereof. In another embodiment, the first electrode (221) may further include a layer formed of ITO, IZO, ZnO, AZO, or In2O3 on or under the aforementioned reflective layer.

[0158] The light-emitting layer (223) may include a polymer or low-molecular organic material that emits light of a predetermined color. The first functional layer (222) may include a hole transport layer (HTL) and / or a hole injection layer (HIL). The second functional layer (224) may include an electron transport layer (ETL) and / or an electron injection layer (EIL).

[0159] The second electrode (225) may be formed of a conductive material having a relatively low work function. In one embodiment, for example, the second electrode (225) may include a (semi-)transparent layer including silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), lithium (Li), calcium (Ca), or an alloy thereof. Alternatively, the second electrode (225) may further include a layer such as ITO, IZO, ZnO, AZO, or In2O3 on the (semi-)transparent layer including the aforementioned material.

[0160] FIG. 7b is a cross-sectional view schematically illustrating a light-emitting element of a stretchable display device according to one embodiment of the present invention.

[0161] Referring to FIG. 7b, in one embodiment of the present invention, a light-emitting element 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), respectively, which are disposed on the same layer.

[0162] In some embodiments, the first semiconductor layer (231) may include a p-type semiconductor layer. The p-type semiconductor layer may be selected from semiconductor materials having a composition formula of InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), such as GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and may be doped with a p-type dopant such as Mg, Zn, Ca, Sr, or Ba.

[0163] The second semiconductor layer (232) may include, for example, an n-type semiconductor layer. The n-type semiconductor layer may be selected from semiconductor materials having a composition formula of InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), such as GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and may be doped with an n-type dopant such as Si, Ge, or Sn.

[0164] The intermediate layer (233) is a region where electrons and holes recombine, and as the electrons and holes recombine, they transition to a lower energy level and can generate light having a corresponding wavelength. In one embodiment, the intermediate layer (233) may be formed by including a semiconductor material having a composition formula of, for example, InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), and may be formed as a single quantum well structure or a multi-quantum well structure (MQW). In addition, it may also include a quantum wire structure or a quantum dot structure.

[0165] Although Fig. 7b illustrates that the first semiconductor layer (231) includes a p-type semiconductor layer and the second semiconductor layer (232) includes an n-type semiconductor layer, the present invention is not limited thereto. In another embodiment, the first semiconductor layer (231) may include an n-type semiconductor layer and the second semiconductor layer (232) may include a p-type semiconductor layer.

[0166] Fig. 8 is a schematic cross-sectional view of a portion of a stretchable display device (1) according to one embodiment of the present invention, and Fig. 9 is a schematic plan view of a portion of a stretchable display device (1) according to one embodiment of the present invention. Specifically, Fig. 9 is an enlarged plan view of portion V of Fig. 3.

[0167] In FIGS. 8 and 9, the same reference numerals as in FIGS. 4a to 4c and FIG. 5 refer to the same members, and their redundant descriptions are omitted.

[0168] In addition, although FIG. 9 describes the embodiment shown in FIG. 4c, the planar shape of the stretchable display device (1) is not limited thereto, and the embodiments shown in FIGS. 4a and 4b can also be applied.

[0169] Referring to FIGS. 8 and 9, the stretchable display device (1) may include a first film (FL1), a display panel (PN), an upper substrate (US), and a filling portion (FP).

[0170] The first film (FL1) may be formed of a flexible, stretchable material. In one embodiment, for example, the first film (FL1) may include at least one of an organosilicon compound (PDMS; polydimethylsiloxane) and polyurethane (PU; polyurethane). The first film (FL1) may be disposed over the entire area of ​​the stretchable display device (1).

[0171] A display panel (PN) may be arranged on the first film (FL1). The display panel (PN) may be formed of a flexible material that can be stretched. The display panel (PN) may display an image using a plurality of pixels. The display panel (PN) may include a substrate (100), a buffer layer (111), an insulating layer (IL), a pixel driver circuit (PC), a panel driver circuit (DC), and wiring (WL). A detailed description of the display panel (PN) will be provided later.

[0172] An upper substrate (US) may be disposed on the display panel (PN). The upper substrate (US) may be formed of a flexible, stretchable material. In one embodiment, for example, the upper substrate (US) may include a polymer resin such as polyethersulfone, polyarylate, polyether imide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyimide, polycarbonate, cellulose triacetate, or cellulose acetate propionate. In one embodiment, the upper substrate (US) may be a single layer including the above-described polymer resin. In another embodiment, the upper substrate (US) may be a multilayer structure including a base layer including the above-described polymer resin and a barrier layer including an inorganic insulating material. The upper substrate (US) including the polymer resin may have flexible, rollable, and bendable properties.

[0173] A peeling portion (FP) may be disposed between a first film (FL1) and an upper substrate (US). The peeling portion (FP) may be in contact with a display panel (PN). At least a portion of the peeling portion (FP) may be accommodated in an opening of the display panel (PN). The peeling portion (FP) may include an optically clear resin (OCA) material. In one embodiment, for example, the peeling portion (FP) may include an elastomer material.

[0174] A display panel (PN) may include a display portion (DP) arranged in a display area (DA) and a non-display portion (NDP) arranged in a non-display area (NDA). The non-display portion (NDP) may include a driver portion (DRP) arranged in a driver area (DRA) and a frame portion (FRP) arranged in a frame area (FRA).

[0175] The display portion (DP), the driver portion (DRP), and the frame portion (FRP) can be sequentially arranged along a first direction (e.g., the -x direction). The display portion (DP) can be arranged at the center of the stretchable display device (1), the frame portion (FRP) can be arranged at the periphery of the stretchable display device (1), and the driver portion (DRP) can be arranged between the display portion (DP) and the frame portion (FRP).

[0176] The display unit (DP) may include a plurality of first island units (11) and a plurality of first bridge units (12). The plurality of first island units (11) may be arranged to be spaced apart from each other. Each of the plurality of first island units (11) may include a light-emitting element (LED) and a circuit for driving the light-emitting element (LED) electrically connected thereto, such as a pixel driving circuit unit (PC).

[0177] Looking at the first island section (11), a buffer layer (111) including an inorganic insulating material is disposed on a substrate (100), and a pixel driving circuit section (PC) may be disposed on the buffer layer (111). An insulating layer (IL) including an inorganic insulating material and / or an organic insulating material may be disposed between the pixel driving circuit section (PC) and the light emitting element (LED). The light emitting element (LED) is disposed on the insulating layer (IL) and may be electrically connected to the corresponding pixel driving circuit section (PC).

[0178] Looking at the first bridge portion (12), an insulating layer (IL) including an organic insulating material may be disposed on the substrate (100). In addition, the first bridge portion (12) may include a wiring (WL) electrically connected to a pixel driving circuit portion (PC) disposed in each of the adjacent first island portions (11). A first opening (CS1) is defined adjacent to the first island portion (11), and the adjacent first island portions (11) may be spaced apart from each other with the first opening (CS1) therebetween.

[0179] The driver area (DRA) may include a first sub-driver area (SDRA1), a second sub-driver area (SDRA2), and a third sub-driver area (SDRA3). The second sub-driver area (SDRA2), the first sub-driver area (SDRA1), and the third sub-driver area (SDRA3) may be sequentially arranged along a first direction (e.g., the -x direction). That is, the second sub-driver area (SDRA2) may be arranged between the display area (DA) and the first sub-driver area (SDRA1), and the third sub-driver area (SDRA3) may be arranged between the first sub-driver area (SDRA1) and the frame area (FRA).

[0180] The driver section (DRP) may include a plurality of second island sections (21) and a plurality of second bridge sections (22) arranged in the first sub-driver area (SDRA1), a plurality of third bridge sections (23) arranged in the second sub-driver area (SDRA2), and a plurality of fourth bridge sections (24) arranged in the third sub-driver area (SDRA3).

[0181] A plurality of second islands (21) may be arranged to be spaced apart from each other. A driver for providing an electrical signal to a light-emitting element (LED) may be arranged in each of the plurality of second islands (21). Each of the plurality of second islands (21) may include a circuit for providing an electrical signal to the gate electrode of each of the transistors electrically connected to the light-emitting elements (LED), for example, a panel driving circuit (DC).

[0182] Looking at the second island section (21), a buffer layer (111) including an inorganic insulating material is disposed on the substrate (100), and a panel driving circuit section (DC) may be disposed on the buffer layer (111). An insulating layer (IL) including an inorganic insulating material and / or an organic insulating material may be disposed on the panel driving circuit section (DC).

[0183] Looking at the second bridge portion (22), an insulating layer (IL) including an organic insulating material may be disposed on the substrate (100). In addition, the second bridge portion (22) may include a wiring (WL) electrically connected to a panel driving circuit (DC) disposed on each of the adjacent second island portions (21). A second opening (CS2) is defined adjacent to the second bridge portion (22), and the adjacent second island portions (21) may be spaced apart from each other with the second opening (CS2) therebetween.

[0184] Looking at the third bridge portion (23), an insulating layer (IL) including an organic insulating material may be disposed on the substrate (100). In addition, the third bridge portion (23) may include a wiring (WL) electrically connected to a pixel driving circuit portion (PC) disposed in an adjacent first island portion (11) and a panel driving circuit portion (DC) disposed in a second island portion (21). A third opening (CS3) and a fourth opening (CS4) are defined adjacent to the third bridge portion (23), and the adjacent first island portion (11) and second island portion (21) may be spaced apart from each other with the third opening (CS3) and the fourth opening (CS4) therebetween.

[0185] Looking at the fourth bridge portion (24), an insulating layer (IL) including an organic insulating material may be placed on the substrate (100). The fourth bridge portion (24) may extend to the adjacent second island portion (21) and the third island portion (31) described below. A fifth opening (CS5) and a sixth opening (CS6) are defined adjacent to the fourth bridge portion (24), and the adjacent second island portion (21) and the third island portion (31) may be spaced apart from each other with the fifth opening (CS5) and the sixth opening (CS6) therebetween.

[0186] The frame portion (FRP) may include a plurality of third island portions (31). The plurality of third island portions (31) may be arranged to be spaced apart from each other. In one embodiment, for example, the plurality of third island portions (31) may be arranged to be spaced apart from each other along the second direction (e.g., the y direction and / or the -y direction). Looking at the third island portions (31), an insulating layer (IL) including an organic insulating material may be arranged on the substrate (100). A frame opening (OPF) may be defined between adjacent third island portions (31). That is, adjacent third island portions (31) may be spaced apart from each other with the frame opening (OPF) therebetween.

[0187] Any one of the plurality of third island sections (31) may be extended to any one of the plurality of second island sections (21). In one embodiment, for example, each of the plurality of third island sections (31) may be extended to one second island section (21). One second island section (21) may be extended to one fourth bridge section (24), and one fourth bridge section (24) may be extended to one third island section (31). That is, one second island section (21) and one third island section (31) may be extended to each other by each of the plurality of fourth bridge sections (24) arranged in the third sub-driver area (SDRA3).

[0188] The plurality of fourth bridge portions (24) may be spaced apart from each other by fifth openings (CS5) and sixth openings (CS6). The fifth openings (CS5) may be defined between one fourth bridge portion (24) and another fourth bridge portion (24), and the sixth openings (CS6) may be defined between one fourth bridge portion (24) and another fourth bridge portion (24). That is, the fifth openings (CS5) and the sixth openings (CS6) may be defined alternately along the second direction (e.g., the y direction and / or the -y direction). On a plane, the shapes of the fifth openings (CS5) and the sixth openings (CS6) may be the same.

[0189] One second island part (21) can correspond to one third island part (31). In one embodiment, for example, one second island part (21) arranged in the (j)th row can correspond to one third island part (31) arranged in the (j)th row (wherein j is a positive integer greater than 0). In addition, one second island part (21) arranged in the (j+1)th row can correspond to one third island part (31) arranged in the (j+1)th row (wherein j is a positive integer greater than 0).

[0190] In this structure, two adjacent second islands (21) among the plurality of third islands (31) may be symmetrical with respect to the center line (CNL) between two adjacent third islands (31). That is, the center line (CNL) between two adjacent third islands (31) may pass through the center of the second bridge (22). In addition, two adjacent first islands (11) among the plurality of third islands (31) may be symmetrical with respect to the center line (CNL) between two adjacent third islands (31). That is, the center line (CNL) between two adjacent third islands (31) may pass through the center of the first bridge (12).

[0191] The third island portion (31) may be larger than each of the first island portion (11) and the second island portion (21). The length of the third island portion (31) in the first direction (e.g., the x direction and / or the -x direction) may be longer than the length of each of the first island portion (11) and the second island portion (21) in the first direction (e.g., the x direction and / or the -x direction). The length of the third island portion (31) in the second direction (e.g., the y direction and / or the -y direction) may be longer than the length of each of the first island portion (11) and the second island portion (21) in the second direction (e.g., the y direction and / or the -y direction). In such a structure, the stretchable display device (1) may maintain its shape without becoming wobbly due to the frame portion (FRP).

[0192] The elongation of the display part (DP), driver part (DRP) and frame part (FRP) may be different from each other.

[0193] First, when comparing the driver portion (DRP) and the display portion (DP), the number of first bridge portions (12) per unit area may be greater than the number of second bridge portions (22). Therefore, the elongation of the display portion (DP) may be greater than the elongation of the driver portion (DRP).

[0194] Specifically, per unit area, the number of first bridge portions (12) extending to adjacent first island portions (11) spaced apart along a first direction (e.g., the x direction and / or the -x direction) may be greater than the number of second bridge portions (22) extending to adjacent second island portions (21) spaced apart along the first direction (e.g., the x direction and / or the -x direction). Accordingly, the elongation in the first direction (e.g., the x direction and / or the -x direction) may be greater for the display portion (DP) than for the driver portion (DRP).

[0195] Additionally, the number of first bridge portions (12) extending to adjacent first island portions (11) spaced apart along the second direction (e.g., the y direction and / or the -y direction) per unit area may be greater than the number of second bridge portions (22) extending to adjacent second island portions (21) spaced apart along the second direction (e.g., the y direction and / or the -y direction). Accordingly, the elongation in the second direction (e.g., the y direction and / or the -y direction) may be greater for the display portion (DP) than for the driver portion (DRP).

[0196] Comparing the driver portion (DRP) and the frame portion (FRP), the plurality of third island portions (31) may be arranged in a row along the second direction (e.g., the y direction and / or the -y direction), but may not be spaced apart from each other along the first direction (e.g., the x direction and / or the -x direction). Accordingly, the driver portion (DRP) in the first direction (e.g., the x direction and / or the -x direction) may be larger than the frame portion (FRP).

[0197] Additionally, the plurality of third island portions (31) may be spaced apart from each other along the second direction (e.g., the y direction and / or the -y direction). Unlike the plurality of second island portions (21), the plurality of third island portions (31) may not be extended by a separate bridge portion. Therefore, the elongation in the second direction (e.g., the y direction and / or the -y direction) may be greater for the frame portion (FRP) than for the driver portion (DRP).

[0198] FIGS. 10A and 10B are schematic plan views of a portion of a stretchable display device (1) according to one embodiment of the present invention. Specifically, FIGS. 10A and 10B are enlarged plan views of part V of FIG. 3.

[0199] In FIGS. 10a and 10b, the same reference numerals as in FIGS. 8 and 9 refer to the same members, and their redundant descriptions are omitted.

[0200] Referring to FIGS. 10a and 10b, at least two of the plurality of second island sections (21) can be extended to one of the plurality of third island sections (31).

[0201] The number of second island sections (21) extending to one third island section (31) may be plural. One third island section (31) of the frame section (FRP) may correspond to multiple second island sections (21) of the driver section (DRP). The fourth bridge section (24) arranged in the third sub-driver area (DRA) of the driver area (DRA) may extend to the second island section (21) and the third island section (31). The number of fourth bridge sections (24) may correspond to the number of second island sections (21).

[0202] In one embodiment, for example, two fourth bridge units (24) may extend from one third island unit (31) arranged in the frame area (FRA), and one second island unit (21) may extend from each of the two fourth bridge units (24). That is, one third island unit (31), two fourth bridge units (24), and two second island units (21) arranged in the (j)th row and the (j+1)th row may extend from each other. However, this is merely an example, and the number of fourth bridge units (24) and second island units (21) extending from one third island unit (31) is not limited thereto.

[0203] As shown in Fig. 10a, on a plane, the shapes of the fifth opening (CS5) and the sixth opening (CS6) may be the same. Here, the fifth opening (CS5) may be an opening defined between the fourth bridge portions (24) extending to one third island portion (31). In addition, the sixth opening (CS6) may be an opening defined between two adjacent fourth bridge portions (24) extending to two adjacent third island portions (31). That is, the sixth opening (CS6) may be an opening communicating with the frame opening (OPF). The fifth opening (CS5) and the sixth opening (CS6) may be alternately defined along the second direction (e.g., the y direction and / or the -y direction), and the shapes of the fifth opening (CS5) and the sixth opening (CS6) may be the same. The shapes of the plurality of fourth bridge parts (24) may be identical. In addition, the spacing between two adjacent fourth bridge parts (24) may be constant.

[0204] As shown in Fig. 10b, on a plane, the shapes of the fifth opening (CS5) and the sixth opening (CS6) may be different. The gap between the plurality of fourth bridge portions (24) extending to one third island portion (31) may narrow along the first direction (e.g., the -x direction). Therefore, the size of the fifth opening (CS5) may be smaller than the size of the sixth opening (CS6). The plurality of fourth bridge portions (24) extending to one third island portion (31) may be symmetrical. However, the shapes of the plurality of fourth bridge portions (24), the fifth opening (CS5), and the sixth opening (CS6) illustrated in Fig. 10b are only an example, and the shapes of the plurality of fourth bridge portions (24), the fifth opening (CS5), and the sixth opening (CS6) are not limited thereto.

[0205] Fig. 11 is a schematic plan view of a portion of a stretchable display device (1) according to one embodiment of the present invention. Specifically, Fig. 11 is an enlarged plan view of part V of Fig. 3.

[0206] In Fig. 11, the same reference numerals as in Figs. 8 and 9 refer to the same members, and their redundant descriptions are omitted.

[0207] Referring to FIG. 11, at least two of the plurality of second island portions (21) extend from one of the plurality of third island portions (31), and at least two of the plurality of third island portions (31) may have different numbers of second island portions (21) extending from each other. In addition, the shapes of at least two of the plurality of third island portions (31) may be different from each other.

[0208] In one embodiment, for example, as illustrated in FIG. 11, the shapes of the third island portions (31) arranged in the (j)th row and the (j+1)th row may be the same. One fourth bridge portion (24) may extend from each of the third island portions (31) arranged in the (j)th row and the (j+1)th row, and one second island portion (21) may extend from each of the fourth bridge portions (24).

[0209] The third island portions (31) arranged in the (j+2)th row and the (j+3)th row may be provided as a single unit. Accordingly, one third island portion (31) arranged in the (j+2)th row and the (j+3)th row may be larger in size on a plane than each of the third island portions (31) arranged in the (j)th row and the (j+1)th row. In addition, a plurality of second island portions (21) may extend to one third island portion (31) arranged in the (j+2)th row and the (j+3)th row. In one embodiment, for example, two fourth bridge portions (24) may extend to one third island portion (31) arranged in the (j+2)th row and the (j+3)th row, and one second island portion (21) may extend to each of the two fourth bridge portions (24).

[0210] FIG. 12a is a schematic cross-sectional view of a portion of a stretchable display device (1) according to an embodiment of the present invention, FIG. 12b is a schematic plan view of a portion of a stretchable display device (1) according to an embodiment of the present invention, FIGS. 12c and 12d are schematic cross-sectional views of a portion of a stretchable display device (1) according to an embodiment of the present invention, FIG. 12e is a schematic plan view of a portion of a stretchable display device (1) according to an embodiment of the present invention, and FIGS. 12f and 12g are schematic cross-sectional views of a portion of a stretchable display device (1) according to an embodiment of the present invention.

[0211] In FIGS. 12a to 12f, the same reference numerals as in FIGS. 8 and 9 refer to the same members, and their redundant descriptions are omitted.

[0212] Referring to FIGS. 12a to 12f, a method for manufacturing a stretchable display device (1) can be seen.

[0213] First, referring to FIGS. 12a and 12b, a method for manufacturing a stretchable display device (1) may include a step of arranging a display panel (PN) on a support substrate (SS), and a step of arranging a support film (FLS) on the display panel (PN).

[0214] The support substrate (SS) may include glass of sufficient thickness. The support substrate (SS) may have sufficient hardness to reduce warping or deformation of the display panel (PN) including a flexible material during the manufacturing process.

[0215] The display panel (PN) includes a display portion (DP) and a non-display portion (NDP) sequentially arranged along a first direction (e.g., -x direction), and the non-display portion (NDP) may include a driver portion (DRP) and a peripheral portion (SBP) sequentially arranged along the first direction (e.g., -x direction). That is, the display panel (PN) may include a display portion (DP), a driver portion (DRP), and a peripheral portion (SBP) sequentially arranged along the first direction (e.g., -x direction). Since the display portion (DP) and the driver portion (DRP) have been described above with reference to FIGS. 8 and 9, a detailed description thereof will be omitted.

[0216] The outer portion (SBP) may include a plurality of teeth (SBP1) and a connecting portion (SBP2). The plurality of teeth (SBP1) may be arranged to be spaced apart from each other along a second direction (e.g., the y direction and / or the -y direction). A tooth opening (OPSB) may be defined between the plurality of teeth (SBP1). That is, the tooth opening (OPSB) may define between the plurality of teeth (SBP1). The tooth opening (OPSB) may communicate with the fifth opening (CS5) and the sixth opening (CS6). That is, two adjacent teeth (SBP1) may be arranged to be spaced apart from each other with one tooth opening (OPSB) therebetween. The connecting portion (SBP2) may be arranged from the plurality of teeth (SBP1) in the first direction (e.g., the -x direction) such that the plurality of teeth (SBP1) extend from each other. The connecting portion (SBP2) is arranged on the outer side of the plurality of gear portions (SBP1) so as to connect the plurality of gear portions (SBP1). The connecting portion (SBP2) and the plurality of gear portions (SBP1) may be provided as one piece.

[0217] The method for manufacturing a stretchable display device (1) may further include a step of arranging a filling part (FP) on the display panel (PN) before the step of arranging a support film (FLS) on the display panel (PN). In this case, the step of arranging the support film (FLS) on the display panel (PN) may be a step of arranging the support film (FLS) on the filling part (FP) arranged on the display panel (PN).

[0218] Referring to FIG. 12c, a method for manufacturing a stretchable display device (1) may include a step of removing a support substrate (SS, see FIG. 12a) from a display panel (PN), and a step of placing the display panel (PN) on a first film (FL1).

[0219] The support film (FLS) may have a higher modulus than the first film (FL1). In one embodiment, for example, the support film (FLS) may include a PET material. Accordingly, in the step of removing the support substrate (SS, see FIG. 12a) from the display panel (PN), the support film (FLS) may reduce warping or deformation of the display panel (PN).

[0220] Once the support substrate (SS, see FIG. 12a) is removed, the first film (FL1) can be attached to the lower portion of the display panel (PN). In this process, the support substrate (SS, see FIG. 12a) can be replaced with the first film (FL1). Accordingly, the display panel (PN) can be placed on the first film (FL1).

[0221] Referring to FIGS. 12d and 12e, a method for manufacturing a stretchable display device (1) may include a step of removing a support film (FLS, see FIG. 12c) from a display panel (PN), and a step of cutting an outer portion (SBP) along a cutting line (CL).

[0222] As the support film (FLS, see FIG. 12c) is removed from the display panel (PN), the upper surface of the display panel (PN) may be exposed. The cutting line (CL) may overlap at least one of the plurality of sawtooth openings (OPSB). The cutting line (CL) may overlap with the end portion (ESB) of at least one of the plurality of sawtooth openings (OPSB). In one embodiment, for example, as illustrated in FIG. 12e, the cutting line (CL) may overlap with the end portion (ESB) of each of the plurality of sawtooth openings (OPSB). That is, the cutting line (CL) may be identical to a boundary line that separates the plurality of sawtooth portions (SBP1) and the connecting portion (SBP2).

[0223] FIG. 12F is a cross-sectional view of a portion of a stretchable display device (1) after the outer portion (SBP) is cut along the cutting line (CL) according to the process described with reference to FIGS. 12D and 12E. Referring to FIGS. 12E and 12F together, a portion of the outer portion (SBP) arranged in a first direction (e.g., -x direction) with respect to the cutting line (CL) can be removed. That is, a portion of the outer portion (SBP) arranged outside with respect to the cutting line (CL) can be removed. A frame portion (FRP) can be formed as a portion of the outer portion (SBP) is removed. By the first film (FL1) arranged under the display panel (PN), warping or deformation of the display panel (PN) can be reduced during the cutting process.

[0224] Referring to FIG. 12g, a method for manufacturing a stretchable display device (1) may include a step of placing an upper substrate (US) on a display panel (PN). The upper substrate (US) may be placed on a filling portion (FP) placed on the display panel (PN).

[0225] FIG. 13 is a schematic cross-sectional view of a portion of a stretchable display device (1) according to one embodiment of the present invention.

[0226] In Fig. 13, the same reference numerals as in Figs. 8 and 9 refer to the same members, and their duplicate descriptions are omitted.

[0227] Referring to FIG. 13, the stretchable display device (1) may include a first film (FL1), a display panel (PN), a second film (FL2), an upper substrate (US), and a filling portion (FP).

[0228] The first film (FL1) may be made of a flexible material that can be stretched.

[0229] A display panel (PN) may be arranged on a first film (FL1). The display panel (PN) may be formed of a flexible material that can be stretched. The display panel (PN) may display an image using a plurality of pixels. The display panel (PN) may include a substrate (100), a buffer layer (111), an insulating layer (IL), a pixel driver circuit (PC), a panel driver circuit (DC), and wiring (WL). A detailed description of the display panel (PN) will be omitted as it has been described above with reference to FIG. 8.

[0230] A second film (FL2) may be disposed on the display panel (PN). The second film (FL2) may be formed of a flexible material that can be stretched. The second film (FL2) may be formed of the same material as the first film (FL1). In one embodiment, for example, the second film (FL2) may include at least one material selected from the group consisting of an organosilicon compound (PDMS; polydimethylsiloxane) and polyurethane (PU; polyurethane).

[0231] An upper substrate (US) may be placed on the second film (FL2). The upper substrate (US) may be formed of a flexible material that can be stretched.

[0232] A peeling portion (FP) may be disposed between the first film (FL1) and the second film (FL2). The peeling portion (FP) may be in contact with the display panel (PN). At least a portion of the peeling portion (FP) may be accommodated in an opening of the display panel (PN).

[0233] FIGS. 14A to 14E are schematic cross-sectional views of a portion of a stretchable display device (1) according to one embodiment of the present invention.

[0234] In FIGS. 14a to 14e, the same reference numerals as in FIGS. 8 and 9 refer to the same members, and their redundant descriptions are omitted.

[0235] Referring to FIGS. 14a to 14e, a method for manufacturing a stretchable display device (1) can be seen.

[0236] First, referring to FIG. 14a, a method for manufacturing a stretchable display device (1) may include a step of placing a display panel (PN) on a support substrate (SS), and a step of placing a support film (FLS) on the display panel (PN).

[0237] The support substrate (SS) may include glass of sufficient thickness. The support substrate (SS) may have sufficient hardness to reduce warping or deformation of the display panel (PN) including a flexible material during the manufacturing process.

[0238] The method for manufacturing a stretchable display device (1) may further include a step of arranging a filling part (FP) on the display panel (PN) before the step of arranging a support film (FLS) on the display panel (PN). In this case, the step of arranging the support film (FLS) on the display panel (PN) may be a step of arranging the support film (FLS) on the filling part (FP) arranged on the display panel (PN).

[0239] Referring to FIG. 14b, a method for manufacturing a stretchable display device (1) may include a step of removing a support substrate (SS, see FIG. 14a) from a display panel (PN), and a step of placing the display panel (PN) on a first film (FL1).

[0240] The support film (FLS) may have a higher modulus than the first film (FL1). In one embodiment, for example, the support film (FLS) may include a PET material. Accordingly, in the step of removing the support substrate (SS, see FIG. 14a) from the display panel (PN), the support film (FLS) may reduce warping or deformation of the display panel (PN).

[0241] Once the support substrate (SS, see FIG. 14a) is removed, the first film (FL1) can be attached to the lower portion of the display panel (PN). In this process, the support substrate (SS, see FIG. 14a) can be replaced with the first film (FL1). Accordingly, the display panel (PN) can be placed on the first film (FL1).

[0242] Referring to FIGS. 14c and 14d, a method for manufacturing a stretchable display device (1) may include a step of removing a support film (FLS, see FIG. 14c) from a display panel (PN), a step of placing a second film (FL2) on the display panel (PN), and a step of cutting an outer portion (SBP) along a cutting line (CL).

[0243] As the support film (FLS, see FIG. 14c) is removed from the display panel (PN), the upper surface of the display panel (PN) may be exposed. Once the support film (FLS, see FIG. 14c) is removed, a second film (FL2) may be disposed on the display panel (PN). That is, the step of disposing the second film (FL2) on the display panel (PN) may be performed between the step of removing the support film (FLS) from the display panel (PN) and the step of cutting the outer portion (SBP) along the cutting line (CL).

[0244] After cutting the outer portion (SBP) along the cutting line (CL), a portion of the outer portion (SBP) disposed in a first direction (e.g., -x direction) with respect to the cutting line (CL) can be removed. That is, a portion of the outer portion (SBP) disposed outside the cutting line (CL) can be removed. As a part of the outer portion (SBP) is removed, a frame portion (FRP) can be formed. By the first film (FL1) disposed below the display panel (PN) and the second film (FL2) disposed above, warping or deformation of the display panel (PN) can be reduced during the cutting process.

[0245] Referring to FIG. 14e, a method for manufacturing a stretchable display device (1) may include a step of placing an upper substrate (US) on a second film (FL2). The upper substrate (US) may be placed on the second film (FL2) placed on the display panel (PN).

[0246] FIGS. 15A to 15D are schematic cross-sectional views of a portion of a stretchable display device (1) according to one embodiment of the present invention.

[0247] In FIGS. 15a to 15d, the same reference numerals as in FIGS. 8 and 9 refer to the same members, and their redundant descriptions are omitted.

[0248] Referring to FIGS. 15a to 15d, a method for manufacturing a stretchable display device (1) can be seen.

[0249] First, referring to FIG. 15A, a method for manufacturing a stretchable display device (1) may include a step of arranging a display panel (PN) on a support substrate (SS), a step of arranging a second film (FL2) on the display panel (PN), and a step of arranging a support film (FLS) on the display panel (PN). The step of arranging the support film (FLS) on the display panel (PN) may be a step of arranging the support film (FLS) on the second film (FL2).

[0250] The support substrate (SS) may include glass of sufficient thickness. The support substrate (SS) may have sufficient hardness to reduce warping or deformation of the display panel (PN) including a flexible material during the manufacturing process.

[0251] The method for manufacturing a stretchable display device (1) may further include a step of arranging a filling part (FP) on the display panel (PN) before the step of arranging the second film (FL2) on the display panel (PN). In this case, the step of arranging the second film (FL2) on the display panel (PN) may be a step of arranging the second film (FL2) on the filling part (FP) arranged on the display panel (PN).

[0252] Referring to FIG. 15b, a method for manufacturing a stretchable display device (1) may include a step of removing a support substrate (SS, see FIG. 15a) from a display panel (PN), and a step of placing the display panel (PN) on a first film (FL1).

[0253] The support film (FLS) may have a higher modulus than the first film (FL1) and the second film (FL2). In one embodiment, for example, the support film (FLS) may include a PET material. Accordingly, in the step of removing the support substrate (SS, see FIG. 15a) from the display panel (PN), the support film (FLS) may reduce warping or deformation of the display panel (PN).

[0254] Once the support substrate (SS, see FIG. 15a) is removed, the first film (FL1) can be attached to the lower portion of the display panel (PN). In this process, the support substrate (SS, see FIG. 15a) can be replaced with the first film (FL1). Accordingly, the display panel (PN) can be placed on the first film (FL1).

[0255] Referring to FIGS. 15c and 15d, a method for manufacturing a stretchable display device (1) may include a step of removing a support film (FLS, see FIG. 15c) from a display panel (PN), a step of cutting an outer portion (SBP) along a cutting line (CL), and a step of placing an upper substrate (US) on a second film (FL2).

[0256] The step of removing the support film (FLS, see FIG. 15c) from the display panel (PN) may be a step of removing the support film (FLS, see FIG. 15c) from the second film (FL2). As the support film (FLS, see FIG. 15c) is removed from the display panel (PN), the upper surface of the second film (FL2) may be exposed.

[0257] After the outer portion (SBP) is cut along the cutting line (CL), a portion of the outer portion (SBP) disposed in a first direction (e.g., -x direction) with respect to the cutting line (CL) can be removed. That is, a portion of the outer portion (SBP) disposed outside the cutting line (CL) can be removed. A frame portion (FRP) can be formed as a part of the outer portion (SBP) is removed. By the first film (FL1) disposed below the display panel (PN) and the second film (FL2) disposed above, the display panel (PN) can be reduced from being bent or deformed during the cutting process. The upper substrate (US) can be disposed on the second film (FL2) disposed on the display panel (PN).

[0258] FIG. 16 is a schematic plan view of a portion of a stretchable display device (1) according to one embodiment of the present invention.

[0259] In Fig. 16, the same reference numerals as in Figs. 8 and 9 refer to the same members, and their duplicate descriptions are omitted.

[0260] Specifically, FIG. 16 is a schematic plan view of a portion of a stretchable display device (1) before the outer portion (SBP) is cut along the cutting line (CL).

[0261] Referring to Fig. 16, the cutting line (CL) can be spaced apart from at least one of the ends (ESB) of the plurality of tooth openings (OPSB). The cutting line (CL) can be arranged to be spaced apart from at least one of the ends (ESB) of the plurality of tooth openings (OPSB) in a first direction (e.g., x direction). That is, the cutting line (CL) can be arranged to be spaced apart from the connecting portion in the first direction (e.g., x direction). Accordingly, during the process of cutting the outer portion (SBP), a margin can be secured for stably separating the plurality of tooth portions (SBP1) from each other.

[0262] FIG. 17a and FIG. 17b are schematic plan views of a portion of a stretchable display device (1) according to one embodiment of the present invention.

[0263] In FIGS. 17a and 17b, the same reference numerals as in FIGS. 8 and 9 refer to the same members, and their redundant descriptions are omitted.

[0264] Specifically, FIG. 17a is a schematic plan view of a portion of a stretchable display device (1) before the outer portion (SBP) is cut along the cutting line (CL), and FIG. 17b is a schematic plan view of a portion of a stretchable display device (1) after the outer portion (SBP) is cut along the cutting line (CL) to form a frame portion (FRP).

[0265] Referring to FIG. 17a, the cutting line (CL) can be spaced apart from at least one of the plurality of tooth openings (OPSB). One or more tooth openings (OPSB) can be spaced apart from the cutting line (CL), and another one or more tooth openings (OPSB) can overlap the cutting line (CL). In one embodiment, for example, as illustrated in FIG. 17a, the cutting line (CL) can be spaced apart from the tooth openings (OPSB) adjacent to the tooth portions (SBP1) arranged in the (j)-th row, the (j+1)-th row, and the (j+2)-th row. In addition, the cutting line (CL) can overlap the tooth openings (OPSB) adjacent to the tooth portions (SBP1) arranged in the (j+3)-th row.

[0266] Referring to Fig. 17b, after cutting, some of the connecting portions (SBP2) extending to two or more teeth (SBP1) may remain. Therefore, the two or more teeth (SBP1) extending to the remaining connecting portions (SBP2) may not be separated from each other. That is, at least one of the plurality of third island portions may include a plurality of teeth and connecting portions. In one embodiment, for example, the teeth (SBP1) arranged in the (j)-th row, the (j+1)-th row, and the (j+2)-th row and the remaining connecting portions (SBP2) may form one third island portion (31). In addition, a third island portion (31) may also be formed in the (j+3)-th row. That is, the shapes of at least two of the plurality of third island portions (31) may be different from each other.

[0267] FIG. 18a and FIG. 18b are schematic plan views of a portion of a stretchable display device (1) according to one embodiment of the present invention.

[0268] In FIGS. 18a and 18b, the same reference numerals as in FIGS. 8 and 9 refer to the same members, and their redundant descriptions are omitted.

[0269] Specifically, FIG. 18a is a schematic plan view of a portion of a stretchable display device (1) before the outer portion (SBP) is cut along the cutting line (CL), and FIG. 18b is a schematic plan view of a portion of a stretchable display device (1) after the outer portion (SBP) is cut along the cutting line (CL) to form a frame portion (FRP).

[0270] Referring to FIG. 18a, the plurality of tooth openings (OPSB) may include one or more first tooth openings (OPSB1) and one or more second tooth openings (OPSB2). The shapes of the first tooth openings (OPSB1) and the second tooth openings (OPSB2) may be different from each other. The length of the second tooth openings (OPSB2) in the first direction (e.g., the x direction and / or the -x direction) may be longer than that of the second tooth openings (OPSB2).

[0271] In one embodiment, for example, the lengths of the tooth openings (OPSB) (e.g., the first tooth opening (OPSB1)) adjacent to the tooth portions (SBP1) arranged in the (j)-th row and the (j+1)-th row in the first direction (e.g., the x-direction and / or the -x-direction) may be shorter than the tooth openings (OPSB) (e.g., the second tooth opening (OPSB2)) adjacent to the tooth portions (SBP1) arranged in the (j+3)-th row. In addition, the lengths of the two tooth openings (OPSB) adjacent to the tooth portions (SBP1) arranged in the (j+2)-th row in the first direction (e.g., the x-direction and / or the -x-direction) may be different from each other.

[0272] The cutting line (CL) may be spaced apart from the first tooth opening (OPSB1) and may overlap with the second tooth opening (OPSB2). In one embodiment, for example, the cutting line (CL) may be spaced apart from the tooth opening (OPSB) adjacent to the tooth portion (SBP1) arranged in the (j)-th row and the (j+1)-th row (e.g., the first tooth opening (OPSB1)). In addition, the cutting line (CL) may overlap with the tooth opening (OPSB) adjacent to the tooth portion (SBP1) arranged in the (j+3)-th row (e.g., the second tooth opening (OPSB2)). And, the cutting line (CL) may be spaced apart from one of the two tooth openings (OPSB) adjacent to the tooth portion (SBP1) arranged in the (j+2)th row (e.g., the first tooth opening (OPSB1)) and may overlap with the other one (e.g., the second tooth opening (OPSB2)).

[0273] Referring to Fig. 18b, after cutting, some of the connecting portions (SBP2) extending to two or more teeth (SBP1) may remain. Therefore, the two or more teeth (SBP1) extending to the remaining connecting portions (SBP2) may not be separated from each other. That is, at least one of the plurality of third island portions (31) may include a plurality of teeth (SBP1) and connecting portions (SBP2). In one embodiment, for example, the teeth (SBP1) arranged in the (j)-th row, the (j+1)-th row, and the (j+2)-th row and the remaining connecting portions (SBP2) may form one third island portion (31). In addition, a third island portion (31) may also be formed in the (j+3)-th row.

[0274] The stretchable display device (1) according to the above-described embodiments can be used in various electronic devices capable of providing images. Here, the term "electronic device" refers to a device that uses electricity and can provide a predetermined image.

[0275] FIGS. 19A to 19G are perspective views schematically illustrating embodiments of an electronic device including a stretchable display device according to an embodiment of the present invention.

[0276] Referring to FIG. 19A, a stretchable display device according to an embodiment of the present invention may be utilized 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 body portion (3110) and a display portion (3120) provided on the body portion (3110). The stretchable display device according to embodiments of the present invention may be utilized as the display portion (3120) of the wearable electronic device (3100). As illustrated in FIG. 19A, the wearable electronic device (3100) may be deformable. In one embodiment, it may be utilized as a smart watch or a smartphone, depending on the user's selection.

[0277] FIG. 19B illustrates a medical electronic device (3200). In one embodiment, the medical electronic device (3200) may include a body portion (3210) and a light-emitting portion (3220). A stretchable display device according to embodiments of the present invention may be used as the light-emitting portion (3220) of the medical electronic device (3200). The light-emitting portion (3220) may emit light of a certain wavelength band (e.g., infrared, visible light, etc.) to the patient's body. In one embodiment, the body portion (3210) may have a stretchable fiber material, and the light-emitting portion may have a structure that can be worn on the body of a user.

[0278] FIG. 19C illustrates an educational electronic device (3300). In one embodiment, the educational electronic device may include a display unit (3320) provided within a frame (3310). The display unit (3320) may utilize a stretchable display device according to embodiments of the present invention. The display unit (3320) may provide an image such as a sea with waves, a snow-covered mountain, or a volcano with flowing lava, wherein the display unit (3320) may stretch in the height direction (e.g., the z direction) to reflect the height of the wave, mountain, or volcano. In some embodiments, a portion of the display unit (3320) may sequentially change in height along the direction of flowing lava to show the movement of lava in three dimensions. The educational electronic device (3300) may include a plurality of pins (or stroke units, 3330) arranged on the rear surface of the display unit (3320) so that the display unit (3320) may stretch in the height direction. The pins (3330) can be implemented to move along a third direction (e.g., the z direction or the -z direction) so that the image displayed on the display unit (3320) has a three-dimensional height. Fig. 19c describes an educational electronic device (3300), but its use is not limited to providing certain image information.

[0279] While the electronic devices illustrated in FIGS. 19A to 19C are described as electronic devices whose shapes can be varied, the present invention is not limited thereto. As described in the embodiments below, the stretchable display devices according to the embodiments of the present invention can be used in electronic devices in which a portion capable of displaying an image (e.g., a screen) is fixed.

[0280] FIG. 19D illustrates a robot (3400) as another electronic device according to one embodiment of the present invention. The robot (3400) can recognize movement or objects using a camera unit (3440) and display a predetermined image to a user through a display unit (3420, 3430). In some embodiments, since the stretchable display devices according to one embodiment of the present invention can be stretched in various directions as described above, they can be assembled into a body frame having a hemispherical shape, and thus the robot (3400) can include a hemispherical display unit (3420, 3430).

[0281] FIG. 19E illustrates a vehicle display device (3500) as another electronic device according to one embodiment of the present invention. The vehicle display device (3500) may include a cluster (3510), a center information display (CID) (3520), and / or a co-driver display (3530). Since the stretchable display device according to the embodiment of the present invention can be stretched in various directions, it may be used in the cluster (3510), the center information display (CID) (3520), and / or the co-driver display (3530) regardless of the shape of the internal frame of the vehicle.

[0282] Although FIG. 19e illustrates that the cluster (3510), the Center Information Display (CID) (3520), and / or the co-driver display (3530) are each separate, the present invention is not limited thereto. In another embodiment, two or more selected from the cluster (3510), the Center Information Display (CID) (3520), and the co-driver display (3530) may be connected integrally.

[0283] In some embodiments, a vehicle display device (3500) may include a button (3540) capable of displaying a predetermined image. Referring to the enlarged view of FIG. 19E, the hemispherical button (3540) may include an object (3542) that provides a button usability by moving in the z-direction or -z-direction, and a stretchable display device disposed on the object (3542). In some embodiments, when the object (3542) has a three-dimensionally rounded surface, the stretchable display device may also have a three-dimensionally rounded surface.

[0284] FIG. 19F illustrates an electronic device according to one embodiment of the present invention, which is an electronic device (3600) for advertising or display purposes. In some embodiments, the electronic device (3600) for advertising or display purposes may be installed on a fixed structure (3610), such as a wall or a pillar. If the structure (3610) includes a recessed surface as illustrated in FIG. 19F, the electronic device (3600) for advertising or display purposes may also be positioned along the recessed surface of the structure (3610). In some embodiments, the electronic device (3600) for advertising or display purposes may be installed on the structure (3610) using a heat shrink film or the like.

[0285] FIG. 19G illustrates an electronic device according to one embodiment of the present invention as a controller (3700). The controller (3700) may include an image-type button. In one embodiment, for example, the controller (3700) may include first to third button areas (3720, 3730, 3740) in which a portion of the display unit (3710) protrudes in the z direction or protrudes in the -z direction (or is sunken in the z direction). In some embodiments, the first and third button areas (3720, 3740) may protrude in the z direction, and the second button area (3730) may protrude in the -z direction (or is sunken in the z direction).

[0286] While the present invention has been described with reference to the embodiments illustrated in the drawings, these are merely exemplary, and those skilled in the art will appreciate that various modifications and variations of the embodiments are possible. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the appended claims.

Claims

1. First film; and Including a display panel arranged on the first film; The above display panel, A display section comprising a plurality of first island sections spaced apart from each other and including light-emitting elements; A driver section including a plurality of second island sections arranged so as to be spaced apart from each other and having a driver arranged to provide an electrical signal to the light emitting element; and A frame section including a plurality of third island sections arranged to be spaced apart from each other along a second direction intersecting with a first direction in which the display section, the driver section, and the frame section are sequentially arranged; A display device wherein the elongation of the display portion, the elongation of the driver portion, and the elongation of the frame portion are different from each other.

2. In paragraph 1, A display device, wherein the elongation of the driver portion in the first direction is greater than the elongation of the frame portion.

3. In paragraph 1, A display device, wherein the elongation of the frame portion in the second direction is greater than the elongation of the driver portion.

4. In paragraph 1, A display device, wherein any one of the plurality of third island sections extends to any one of the plurality of second island sections.

5. In paragraph 1, A display device, wherein any one of the plurality of third island sections extends to at least two of the plurality of second island sections.

6. In paragraph 1, A display device, wherein at least two of the plurality of third island sections have different numbers of second island sections extending from each other.

7. In paragraph 1, Based on the center line between two adjacent third islands above, A display device, wherein two adjacent second island sections among the above-mentioned plurality are symmetrical to each other.

8. In paragraph 1, A display device in which at least two of the multiple third island sections have different shapes.

9. In paragraph 1, At least one of the above multiple third island divisions, A plurality of gear teeth spaced apart along the second direction; and A display device, comprising: a connecting portion extending in a first direction from the plurality of gear portions so that the plurality of gear portions extend from each other; 10. In paragraph 1, A display device in which the length of the third island portion in the second direction is longer than the length of the second island portion in the second direction.

11. In paragraph 1, A display device, wherein the first film comprises at least one material selected from the group consisting of an organosilicon compound (polydimethylsiloxane) and polyurethane.

12. In paragraph 1, A display device further comprising a second film disposed on the display panel.

13. In paragraph 12, A display device, wherein the second film is made of the same material as the first film.

14. A step of arranging a display panel including a display section, a driver section, and an outer section sequentially arranged along a first direction on a support substrate; A step of placing a support film on the above display panel; A step of removing the above support substrate from the above display panel; A step of arranging the display panel on the first film; A step of removing the above support film from the display panel; and A step of cutting the outer portion along a cutting line is included; The above outer part, A plurality of gear teeth spaced apart from each other along a second direction intersecting with the first direction; and Including a connecting portion extending in a first direction from the plurality of gear portions so that the plurality of gear portions extend from each other; A method for manufacturing a display device, wherein the above cutting line overlaps at least one of a plurality of gear openings defining between the plurality of gear portions.

15. In paragraph 14, A method for manufacturing a display device, wherein the above cutting line overlaps with an end of at least one of the plurality of saw tooth openings.

16. In paragraph 14, A method for manufacturing a display device, wherein the cutting line is spaced apart from at least one of the plurality of saw tooth openings.

17. In paragraph 14, A method for manufacturing a display device, wherein the plurality of gear openings include a first gear opening and a second gear opening whose length in the first direction is longer than that of the first gear opening.

18. In paragraph 17, A method for manufacturing a display device, wherein the above-mentioned cutting line is spaced apart from the first gear opening and overlaps with the second gear opening.

19. In paragraph 14, A method for manufacturing a display device, wherein the first film comprises at least one material selected from the group consisting of an organosilicon compound (polydimethylsiloxane) and polyurethane.

20. In paragraph 14, A method for manufacturing a display device, wherein the above-mentioned support film has a modulus higher than the modulus of the first film.

21. In paragraph 20, A method for manufacturing a display device, wherein the support film comprises a PET material.

22. In paragraph 14, A method for manufacturing a display device, further comprising: a step of placing a second film on the display panel.

23. In paragraph 22, The step of placing the second film on the above display panel is: A method for manufacturing a display device, the method comprising: removing the support film from the display panel; and cutting the outer portion along a cutting line.

24. In paragraph 22, A method for manufacturing a display device, wherein the step of arranging a support film on the display panel is a step of arranging a support film on the second film.

25. In paragraph 22, A method for manufacturing a display device, wherein the second film is made of the same material as the first film.

Images