Display device

Abstract

A display device having a display area and a non-display area. The display device includes a substrate, a plurality of light emitting elements on the substrate, and a cover layer including a cover frame on the substrate and comprising an opaque material, and a plurality of cover openings in the cover frame to overlap the plurality of light emitting elements. The plurality of light emitting elements includes a plurality of first light emitting elements positioned along a first line, the first line being a virtual closed curve centered at a first center point, and a plurality of second light emitting elements positioned along a second line, the second line being a virtual closed curve centered at the first center point and surrounding the first line. The plurality of cover openings includes a plurality of first cover openings positioned along a third line, the third line being a virtual closed curve centered at the first center point, and a plurality of second cover openings positioned along a fourth line, the fourth line being a virtual closed curve centered at the first center point and surrounding the third line.

Description

Technical Field

[0001] One or more embodiments of this disclosure relate to display devices. Background Technology

[0002] Display devices can visually display electrical signals. Various display devices with excellent characteristics such as reduced thickness, light weight, and low power consumption have been introduced. For example, flexible display devices that can be folded or rolled up have been introduced. Recently, research is underway on stretchable display devices, which can be modified into various suitable shapes, and display devices with various structures.

[0003] The information disclosed in this background section is intended to enhance the understanding of the background technology of this disclosure, and therefore may contain information that does not constitute prior art. Summary of the Invention

[0004] Technical issues

[0005] One or more embodiments of this disclosure may relate to display devices, such as flexible display devices.

[0006] Solution to the problem

[0007] According to one or more embodiments of this disclosure, a display device having a display area and a non-display area includes: a substrate; a plurality of light-emitting elements on the substrate; and a cover layer including: a cover frame on the substrate and comprising an opaque material; and a plurality of cover openings in the cover frame to overlap with the plurality of light-emitting elements. The plurality of light-emitting elements includes: a plurality of first light-emitting elements positioned along a first line, the first line being a virtual closed curve centered at a first center point; and a plurality of second light-emitting elements positioned along a second line, the second line being a virtual closed curve centered at the first center point and surrounding the first line. The plurality of cover openings includes: a plurality of first cover openings positioned along a third line, the third line being a virtual closed curve centered at the first center point; and a plurality of second cover openings positioned along a fourth line, the fourth line being a virtual closed curve centered at the first center point and surrounding the third line.

[0008] In some embodiments, the distance between the first center point and the first line may be greater than the distance between the first line and the second line.

[0009] In some embodiments, the distance between the first center point and the third line may be equal to the distance between the third line and the fourth line.

[0010] In some embodiments, the first line may surround the third line; and the second line may surround the fourth line.

[0011] In some embodiments, the modulus of the cover frame may be less than the modulus of the substrate.

[0012] In some embodiments, in a plan view, the size of each of the plurality of covering openings may be larger than the size of each of the plurality of light-emitting elements.

[0013] In some embodiments, the plurality of light-emitting elements may be positioned symmetrically about a first center line and a second center line, wherein the first center line is a virtual line passing through the first center point in a first direction, and the second center line is a virtual line passing through the first center point in a second direction intersecting the first direction.

[0014] In some embodiments, the plurality of covering openings may be positioned symmetrically about a first centerline and a second centerline, the first centerline being a virtual line passing through the first center point in a first direction, and the second centerline being a virtual line passing through the first center point in a second direction intersecting the first direction.

[0015] In some embodiments, at least one of the first line, the second line, the third line, and the fourth line may be circular.

[0016] In some embodiments, the cover frame may include at least one of thermoplastic polyurethane (TPU), thermoplastic polyethylene (TPE), and silicone rubber.

[0017] In some embodiments, the cover layer may further include a support member configured to support the cover frame from the substrate.

[0018] In some embodiments, the display device may further include a driver connected to one side of the substrate and configured to drive the substrate to be radially stretched.

[0019] In some embodiments, the actuator may include an extended pulley structure.

[0020] According to one or more embodiments of this disclosure, a display device capable of switching between a first structure and a second structure radially stretched from the first structure includes: a substrate; a plurality of light-emitting elements on the substrate; and a cover layer including: a cover frame on the substrate and comprising an opaque material; and a cover opening in the cover frame and overlapping the plurality of light-emitting elements. The plurality of light-emitting elements includes: a plurality of first light-emitting elements positioned along a first line, the first line being a virtual closed curve centered at a first center point; and a plurality of second light-emitting elements positioned along a second line, the second line being a virtual closed curve centered at the first center point and surrounding the first line. The difference between the distance between the first center point and the first line in the second structure and the distance between the first line and the second line is less than the difference between the distance between the first center point and the first line in the first structure and the distance between the first line and the second line.

[0021] In some embodiments, the covering opening may include: a plurality of first covering openings positioned along a third line, the third line being a virtual closed curve centered on the first center point; and a plurality of second covering openings positioned along a fourth line, the fourth line being a virtual closed curve centered on the first center point and surrounding the third line. In each of the first and second structures, the distance between the first center point and the third line may be equal to the distance between the third line and the fourth line.

[0022] In some embodiments, in the second structure, the first line may overlap with the third line.

[0023] In some embodiments, in the second structure, the second line may overlap with the fourth line.

[0024] In some embodiments, in the first structure, the distance between the first center point and the first line may be greater than the distance between the first line and the second line.

[0025] In some embodiments, in each of the first structure and the second structure, at least one of the first line, the second line, the third line, and the fourth line may be circular.

[0026] In some embodiments, the display device may further include a driver connected to one side of the substrate and configured to drive the substrate to be radially stretched or reduced.

[0027] Other aspects, features, and advantages besides those described above will become apparent from the following drawings, claims, and detailed description of the invention.

[0028] Beneficial effects of the invention

[0029] The display device according to some of the above embodiments can have improved visibility.

[0030] However, the embodiments are examples and do not limit the scope of this disclosure. Attached Figure Description

[0031] Figure 1 This is a schematic perspective view of a display device according to one embodiment.

[0032] Figure 2a and Figure 2b It is shown that Figure 1 A perspective view of the display device stretched in a first direction.

[0033] Figure 2c It is shown that Figure 1 A perspective view of the display device stretched in the second direction.

[0034] Figure 2d It is shown that Figure 1 A perspective view of the display device in a stretched state in the first and second directions.

[0035] Figure 2e It is shown that Figure 1 A perspective view of the display device stretched upwards from a third-party perspective.

[0036] Figure 3 It is shown that Figure 1 A perspective view of the display device in a radially stretched state.

[0037] Figure 4 This is a schematic plan view of a display device according to one embodiment.

[0038] Figure 5a This is a schematic plan view of a display device according to one embodiment.

[0039] Figure 5b This is a schematic cross-sectional view of a display device according to one embodiment.

[0040] Figure 6a This is a schematic plan view of a display device according to one embodiment.

[0041] Figure 6b This is a schematic cross-sectional view of a display device according to one embodiment.

[0042] Figure 7 This is a schematic plan view of a display device according to one embodiment.

[0043] Figure 8This is a schematic exploded view of a driver according to one embodiment.

[0044] Figure 9 and Figure 10 This is a schematic perspective view of a driver according to one embodiment.

[0045] Figure 11 It is shown that Figure 1 A perspective view of the display device in a radially stretched state.

[0046] Figure 12a and Figure 12b This is a schematic plan view of a driver according to one embodiment.

[0047] Figure 13a and Figure 13b This is a schematic plan view of a driver according to one embodiment.

[0048] Figures 14a to 14c It is an equivalent circuit diagram of a sub-pixel of a display device according to one or more embodiments.

[0049] Figures 15a to 15g This is a schematic perspective view illustrating various embodiments of an electronic device including a display device according to one or more embodiments. Detailed Implementation

[0050] Because this disclosure can have many modified embodiments, preferred embodiments are illustrated in the accompanying drawings and described in the detailed description. The effects and features of this disclosure, as well as the methods for achieving these effects and features, will become apparent when referring to the embodiments described with reference to the accompanying drawings. However, this disclosure can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.

[0051] One or more embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. Unless otherwise specified in the figure numbers, identical or corresponding elements are given the same reference numerals, and redundant descriptions thereof are omitted.

[0052] In the embodiments, the terms "first" and "second" are not used in a limiting sense, but are used to distinguish one component from another.

[0053] It will be understood that expressions used in the singular form include those in the plural form, unless they have a distinctly different meaning in the context.

[0054] It will be understood that the terms “comprising” and / or “including” as used herein specify the presence of a stated feature or component, but do not exclude the presence or addition of one or more other features or components.

[0055] It will be understood that when a layer, zone, or element is said to be formed "on" another layer, zone, or element, it can be formed directly or indirectly on the other layer, zone, or element. That is, for example, an intermediary layer, zone, or element may exist.

[0056] In the accompanying drawings, the dimensions of the components may be enlarged or reduced for ease of description. In other words, since the dimensions and thicknesses of the elements in the drawings are arbitrarily illustrated for ease of description, the following embodiments are not limited thereto.

[0057] In the following embodiments, the x-axis, y-axis, and z-axis are not limited to the three axes of a Cartesian coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or they can represent different directions that are not perpendicular to each other.

[0058] When an embodiment can be implemented differently, a particular process sequence can be performed in a different order than that described. For example, two consecutively described processes can be performed substantially simultaneously or in the reverse order of their description.

[0059] Figure 1 This is a schematic perspective view of a display device 1 according to an embodiment. Figure 2a and Figure 2b It is shown that Figure 1 A perspective view of the display device 1 in a stretched state in a first direction. Figure 2c It is shown that Figure 1 A perspective view of the display device 1 in a stretched state in the second direction. Figure 2d It is shown that Figure 1 A perspective view of the display device 1 in a stretched state in the first and second directions. Figure 2e It is shown that Figure 1 The perspective view of the display device 1 in a state where it is stretched upwards from a third party.

[0060] refer to Figure 1 The display device 1 may include a display area DA and a non-display area NDA. The display area DA may include multiple pixels. The display device 1 can provide an image (e.g., a predetermined image) by using light emitted from the multiple pixels. The non-display area NDA may be arranged outside the display area DA. The non-display area NDA is a region where no pixels are arranged and may completely surround the display area DA (e.g., around its periphery).

[0061] The display device 1 can be stretched or compressed (e.g., relaxed or compressed) in various suitable directions. The display device 1 can be stretched in a first direction (e.g., the x-direction and / or the -x-direction) by an external object or an external force applied by the user. In some embodiments, such as Figure 2a and Figure 2bAs shown, the display area DA and / or non-display area NDA of the display device 1 can be stretched in a first direction (e.g., the x-direction and / or the -x-direction). For example, as Figure 2a As shown, the display area DA and / or the non-display area NDA can be stretched in both the x-direction and the -x-direction, or as shown in the figure. Figure 2b As shown, the display area DA and / or the non-display area NDA can be fixed on one side of the display device 1 while being stretched in the x direction.

[0062] The 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... Figure 2c As shown, the display area DA and / or non-display area NDA of the display device 1 can be stretched in the y-direction and the -y-direction. In some embodiments, the display device 1 can be stretched in the y-direction or the -y-direction while being fixed on one side.

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

[0064] The display device 1 can be stretched in a third direction (e.g., the z-direction and / or -z-direction) by an external force applied by an external object or a part of the user's body. In one embodiment, as Figure 2e As shown, a portion of the display device 1, such as a portion of the display area DA, can be stretched to protrude in the z-direction. In some embodiments, a portion of the display device 1, such as a portion of the display area DA, can protrude in the -z-direction (or can be recessed in the z-direction).

[0065] Figures 2a to 2e The display device 1 is shown to increase upward in a first direction, a second direction, and / or a third direction, but this disclosure is not limited thereto. In some embodiments, the display device 1 may be modified into various atypical shapes, such as bending or twisting along two or more axes.

[0066] Figure 3 It is shown that Figure 1 A perspective view of the display device 1 in a radially stretched state.

[0067] The display device 1 can be radially stretched by an external object or a user's external force. For example, the display device 1 can be circular and can be stretched from the center in the diametrical direction.

[0068] The display device 1 may include a display panel 10 and a driver 400. The display panel 10 may include the above-mentioned reference. Figure 1 The description refers to the display area DA and the non-display area NDA. In one embodiment, the display area DA and / or the non-display area NDA can be radially stretched or compressed (e.g., radially relaxed or compressed). A driver 400 can be fixed to one side (e.g., the rear surface) of the display panel 10 and can provide a driving force to the display panel 10, causing the display panel 10 to be stretched or compressed. Reference will be made below. Figure 5b The display panel 10 is described in more detail below. Additionally, references will be made below. Figures 8 to 10 The driver 400 is described in more detail.

[0069] Figure 4 This is a schematic plan view of a display device 1 according to an embodiment.

[0070] As referenced above Figure 3 The display device 1 may include a display panel 10 and a driver 400. In the following, reference is made to... Figure 4 The display panel 10 of the display device 1 will be described in more detail.

[0071] refer to Figure 4 The display panel 10 may include a substrate 100. The substrate 100 may include a first region 1A, a second region 2A, and a bending region BA. In this case, the first region 1A may be a display portion, and the second region 2A may be a connector portion connected to an external device. In this case, because the display region DA is exposed to the outside, the display portion can realize an image according to the operation of the display region DA. As described above, the display region DA may be included in the first region 1A, and the non-display region NDA may include the portion of the first region 1A excluding the display region DA, the second region 2A, and the bending region BA.

[0072] For ease of explanation, in the following text, the center point of the display area DA is referred to as the first center point CP1, the virtual line passing through the first center point CP1 in a first direction (e.g., the x direction and / or the -x direction) is referred to as the first center line CL1, and the virtual line passing through the first center point CP1 in a second direction (e.g., the y direction and / or the -y direction) intersecting the first direction is referred to as the second center line CL2. The angle between the first center line CL1 and the second center line CL1 can be a right angle or substantially a right angle.

[0073] The display area DA can have a shape that is symmetrical or substantially symmetrical about the first center line CL1 and the second center line CL2. For example, the display area DA can be circular with the first center point CP1 as its center. However, this disclosure is not limited to this, and the shape of the display area DA can be modified in various ways as needed or desired. For example, the display area DA can be elliptical with the first center point CP1 as its center.

[0074] The substrate 100 may include a bent region BA extending in a first direction (e.g., the x-direction or the -x-direction). The bent region BA is arranged between the first region 1A and the second region 2A relative to a second direction intersecting the first direction (e.g., the y-direction and / or the -y-direction). For example, the substrate 100 may be bent relative to a bending axis BAX extending in the first direction (e.g., the x-direction and / or the -x-direction).

[0075] The first region 1A may include the display region DA. For example... Figure 4 As shown, in addition to the display area DA, the first area 1A may also include a portion of the non-display area NDA outside the display area DA. The second area 2A includes another portion of the non-display area NDA.

[0076] The display area DA comprises multiple pixels PX to realize an image. The multiple pixels PX can be implemented by display elements, and the display elements can be driven by pixel circuitry connected to them. Pixel circuitry can include suitable components such as thin-film transistors (TFTs) and storage capacitors. Pixel circuitry can be connected to scan lines and data lines that intersect with the scan lines. Additionally, pixel circuitry can be connected to a drive voltage line PL.

[0077] The non-display area NDA of the first region 1A, in which no pixels PX are arranged, does not provide an image. A first power line 30 and a second power line 40 for applying different power supply voltages to each other can be arranged in the non-display area NDA. In addition, a scan driver can be arranged in the non-display area NDA.

[0078] In the non-display area NDA, the first power line 30 may surround at least a portion of the display area DA (e.g., around its periphery). Except for the portion of the non-display area NDA in which the second power line 40 is disposed, the first power line 30 may surround most of the display area DA (e.g., around its periphery). In some embodiments, the first power line 30 may surround a portion of the second power line 40 (e.g., around its periphery). The first power line 30 may be electrically connected to the counter electrode of a display element disposed in the display area DA and may transmit a common voltage. The first power line 30 may be connected to the pad 21 of the pad portion 20. Because the first power line 30 is connected to the pad 21, the first power line 30 may include a portion extending into the pad portion 20, such as a portion extending in the -y direction.

[0079] In the non-display area NDA, the second power line 40 can be arranged corresponding to the lower portion of the display area DA. Multiple drive voltage lines PL can be connected to the second power line 40 to transmit drive voltage to multiple pixels PX arranged in the display area DA. The second power line 40 can be connected to the pads 22 of the pad portion 20. Because the second power line 40 is connected to the pad portion 20, the second power line 40 can include a portion extending into the pad portion 20, for example, a portion extending in the -y direction.

[0080] A scan driver (not shown) may be arranged adjacent to a portion of the display area DA in the non-display area NDA. For example, the scan driver may be arranged to the left, right, or both sides of the display area DA (e.g., opposite sides). The scan signal generated by the scan driver may be provided to the pixel PX via scan lines.

[0081] The pad portion 20 may be arranged in the second region 2A. The pad portion 20 includes a plurality of pads 21, 22 and 23. The pad portion 20 may be exposed without being covered by an insulating layer, and therefore, the pad portion 20 may be electrically connected to a controller such as a flexible printed circuit board FPCB or a driver 150.

[0082] The driver 150 may be arranged in a separate flexible printed circuit board (FPCB), and the FPCB may be connected to the pad portion 20. In some embodiments, the driver 150 may be arranged in a variety of suitable manner. For example, the driver 150 may be directly disposed on a portion of the substrate 100 that extends and protrudes from the substrate 100 using a chip-on-glass (COG) method or a chip-on-plastic (COP) method.

[0083] The controller can convert multiple image signals received from an external source into multiple image data signals, and can transmit the modified signals to the display area DA via the pad portion 20. Additionally, the controller can receive vertical synchronization signals, horizontal synchronization signals, and clock signals, generate control signals for controlling the scan driver, and transmit these control signals to the scan driver via the pad portion 20. The controller can transmit different voltages to each of the first power line 30 and the second power line 40 via the pad portion 20. The pad portion 20 can be connected to multiple fan-out wirings 60 and can transmit voltages and various signals to the display area DA.

[0084] Multiple fan-out wirings 60 may overlap with the bending region BA. The fan-out wirings 60 may extend from the first region 1A across the bending region BA to the second region 2A. The fan-out wirings 60 may extend in a direction intersecting the bending axis BAX. The fan-out wirings 60 may be arranged in various suitable manner, such as being arranged perpendicular to or substantially perpendicular to the bending axis BAX or intersecting the bending axis BAX at a suitable angle (e.g., a predetermined angle). Furthermore, the fan-out wirings 60 may have various suitable shapes, such as curved or serrated shapes, other than (e.g., not) straight shapes.

[0085] Figure 5a This is a schematic plan view of a display device 1 according to an embodiment. Figure 5b This is a schematic cross-sectional view of a display device 1 according to one embodiment.

[0086] More in detail, Figure 5a yes Figure 4 An enlarged view of area A, and Figure 5b It is along Figure 5a A cross-sectional view of line V-V' taken from display device 1.

[0087] refer to Figure 5a and Figure 5b The display device 1 may include a display panel 10 and a driver 400. The display panel 10 may include a substrate 100, a circuit element layer 110, a light-emitting element LED, a barrier layer 120, a cover layer 130, and an encapsulation layer 300.

[0088] The substrate 100 may comprise polymeric resins such as polyethersulfone, polyarylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyimide, polycarbonate, cellulose triacetate, and / or cellulose acetate propionate. In one embodiment, the substrate 100 may be a single layer comprising the polymeric resin described above. In some embodiments, the substrate 100 may have a multilayer structure comprising a base layer comprising the polymeric resin described above and an insulating layer comprising an inorganic insulating material. The substrate 100 comprising the polymeric resin may have flexible, rollable, and / or bendable properties.

[0089] A circuit element layer 110 may be disposed on the substrate 100. The circuit element layer 110 may include a pixel driving circuit portion PC. The pixel driving circuit portion PC may include a thin-film transistor and a storage capacitor. Layers such as semiconductor layers and electrode layers, included in the TFT and storage capacitor, may be arranged with an insulating layer between them. Multiple pixel driving circuit portions PC may be provided. The multiple pixel driving circuit portions PC may be spaced apart from each other. For example, the pixel driving circuit portions PC may include a first pixel driving circuit portion PC1, a second pixel driving circuit portion PC2, and a third pixel driving circuit portion PC3 spaced apart from each other.

[0090] A retaining layer 120 may be disposed on the circuit element layer 110. The retaining layer 120 may comprise organic or inorganic materials. When the retaining layer 120 comprises organic materials, it may comprise at least one organic insulating material selected from the group consisting of polyimide, polyamide, acrylic resin layer, benzocyclobutene, and phenolic resin layer. When the retaining layer 120 comprises inorganic materials, it may comprise silicon dioxide (SiO₂). x Silicon nitride (SiN) x ) and silicon oxynitride (SiO) x N y One or more single or multiple layers in ).

[0091] The light-emitting element (LED) can be disposed on the substrate 100. More specifically, the light-emitting element (LED) can be disposed on the circuit element layer 110 and electrically connected to the pixel driving circuit section PC. The light-emitting element (LED) may include a plurality of sub-light-emitting elements (LEDs1, LEDs2, and LEDs3) (hereinafter also referred to as first sub-light-emitting element LEDs1, second sub-light-emitting element LEDs2, and third sub-light-emitting element LEDs3). For example, the light-emitting element (LED) may include first sub-light-emitting element LEDs1, second sub-light-emitting element LEDs2, and third sub-light-emitting element LEDs3. The first sub-light-emitting element LEDs1, second sub-light-emitting element LEDs2, and third sub-light-emitting element LEDs3 may be arranged to be spaced apart from each other. The first sub-light-emitting element LEDs1 may be electrically connected to the first pixel driving circuit section PC1. The second sub-light-emitting element LEDs2 may be electrically connected to the second pixel driving circuit section PC2. The third sub-light-emitting element LEDs3 may be electrically connected to the third pixel driving circuit section PC3.

[0092] The first sub-light-emitting element LEDs1 may include a first pixel electrode 211, a first emitting layer 212, a common electrode 201, a first functional layer 202, and a second functional layer 203. The second sub-light-emitting element LEDs2 may include a second pixel electrode 221, a second emitting layer 222, a common electrode 201, a first functional layer 202, and a second functional layer 203. The third sub-light-emitting element LEDs3 may include a third pixel electrode 231, a third emitting layer 232, a common electrode 201, a first functional layer 202, and a second functional layer 203.

[0093] The first to third pixel electrodes 211, 221, and 231 may be configured to be spaced apart from each other on the circuit element layer 110. The first to third pixel electrodes 211, 221, and 231 may include one or more conductive oxides such as indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), or zinc aluminum oxide (AZO). In some embodiments, the first to third pixel electrodes 211, 221, and 231 may include a reflective layer comprising silver (Ag), magnesium (Mg), aluminum (Al), platinum (Pt), palladium (Pd), gold (Au), nickel (Ni), neodymium (Nd), iridium (Ir), chromium (Cr), or suitable compounds thereof. In some embodiments, the first to third pixel electrodes 211, 221, and 231 may further include a layer formed by depositing ITO, IZO, ZnO, or In2O3 on / below the reflective layer.

[0094] A barrier layer 120 may be disposed on the first to third pixel electrodes 211, 221, and 231. The barrier layer 120 may include a covering portion 121 and a barrier opening OP120. The covering portion 121 may cover the end of each of the first to third pixel electrodes 211, 221, and 231. Additionally, the barrier opening OP120 may expose a portion of each of the first to third pixel electrodes 211, 221, and 231.

[0095] The first emitting layer 212, the second emitting layer 222, and the third emitting layer 232 can be disposed on the first pixel electrode 211, the second pixel electrode 221, and the third pixel electrode 231, respectively. The first to third emitting layers 212, 222, and 232 can be housed within the dam opening OP120 of the dam layer 120. The first to third emitting layers 212, 222, and 232 can comprise polymeric or low-molecular-weight organic materials for emitting light of a desired color (e.g., a predetermined color). As another example, the first to third emitting layers 212, 222, and 232 can comprise inorganic light-emitting materials or quantum dots. The first to third emitting layers 212, 222, and 232 can emit light of different colors from each other. For example, the first emitting layer 212 can emit red light, the second emitting layer 222 can emit green light, and the third emitting layer 232 can emit blue light.

[0096] A common electrode 201 may be disposed on the first to third emission layers 212, 222, and 232. The common electrode 201 may cover the barrier layer 120. The common electrode 201 may include a conductive material with a low work function. For example, the common electrode 201 may include a transparent (or transmissive / reflective) layer comprising Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, lithium (Li), calcium (Ca), or suitable alloys thereof. As another example, the common electrode 201 may further include a layer such as ITO, IZO, ZnO, or In2O3 on a transparent (or transmissive / reflective) layer comprising one or more of the materials described above.

[0097] The first functional layer 202 may be disposed between the first to third emitter layers 212, 222, and 232 and the first to third pixel electrodes 211, 221, and 231. The first functional layer 202 may be disposed on the barrier layer 120. For example, the first functional layer 202 may include a hole transport layer (HTL), or may include an HTL and a hole injection layer (HIL).

[0098] The second functional layer 203 may be disposed between the first to third emitter layers 212, 222 and 232 and the common electrode 201. For example, the second functional layer 203 may include an electron transport layer (ETL) and / or an electron injection layer (EIL).

[0099] The first functional layer 202, the second functional layer 203, and the common electrode 201 can be stacked sequentially on the covering portion 121 of the barrier layer 120. The first functional layer 202, the second functional layer 203, and the common electrode 201 can be a common layer that completely or substantially completely covers the substrate 100.

[0100] The cover layer 130 can be disposed on the substrate 100. The cover layer 130 can be disposed on the common electrode 201 of the light-emitting element LED. The cover layer 130 may include a cover frame 131 and a support member 132 (e.g., see reference 132). Figure 6a ) and cover opening OP130.

[0101] The following is for reference. Figure 6a and Figure 6b The support component 132 is described in more detail.

[0102] The cover frame 131 may be disposed on the substrate 100 and may be spaced apart from the common electrode 201. The cover frame 131 may include an opaque material. For example, the cover frame 131 may include at least one of thermoplastic polyurethane (TPU), thermoplastic polyethylene (TPE), and silicone rubber.

[0103] A cover opening OP130 may be disposed at (e.g., in the middle) the cover frame 131. The cover opening OP130 may pass through (e.g., penetrate) the cover frame 131. The cover opening OP130 may overlap with a light-emitting element (LED). For example, a cover opening OP130 may overlap with a first sub-light-emitting element (LEDs1), a second sub-light-emitting element (LEDs2), and a third sub-light-emitting element (LEDs3). The light-emitting element (LED) may be exposed to the outside of the cover frame 131 through the cover opening OP130. Light emitted from the light-emitting element (LED) may be displayed externally through the cover opening OP130. Therefore, the light-emitting element (LED) may be defined as a pixel (PX).

[0104] The encapsulation layer 300 may be disposed on the substrate 100. The encapsulation layer 300 may be disposed on the cover layer 130. The encapsulation layer 300 may be supported by the cover layer 130. The encapsulation layer 300 may include at least one inorganic layer and at least one organic layer. For example, the encapsulation layer 300 may include a first inorganic encapsulation layer 310, an organic encapsulation layer 320 and a second inorganic encapsulation layer 330 stacked sequentially, but this disclosure is not limited thereto, and the encapsulation layer 300 may include various suitable structures.

[0105] The first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 may include at least one material selected from the group consisting of silicon nitride, aluminum nitride, zirconium nitride, titanium nitride, hafnium nitride, tantalum nitride, silicon oxide, aluminum oxide, titanium oxide, tin oxide, cerium oxide, and silicon oxynitride.

[0106] The organic encapsulation layer 320 may include at least one material selected from the group consisting of acrylic resin layers, methacrylic resin layers, polyisoprene, vinyl resin layers, epoxy resin layers, urethane resin layers, cellulose resin layers, and perylene resin layers.

[0107] Figure 5b An example is illustrated in which the encapsulation layer 300 is formed on a plurality of light-emitting elements (LEDs), but the present disclosure is not limited thereto. In other words, the display device 1 may include a sealing substrate instead of the encapsulation layer 300. The sealing substrate may be bonded to the substrate 100 by a sealing member such as a sealing glass frit to block external moisture and air.

[0108] In this embodiment, various functional layers such as polarization layer, color filter layer, and touch screen layer can be further disposed on encapsulation layer 300.

[0109] The above has been referenced Figure 4 and Figure 5a The first structure of the display device 1 is described. The first structure of the display device 1 may be the structure of the display device 1 before it is stretched.

[0110] The virtual closed curve centered at the first center point CP1 is called the first line L1. The virtual closed curve centered at the first center point CP1 and surrounding the first line L1 (e.g., around its periphery) is called the second line L2.

[0111] Additionally, the virtual closed curve centered at the first center point CP1 is called the third line L3. The virtual closed curve centered at the first center point CP1 and surrounding the third line L3 (e.g., around its periphery) is called the fourth line L4.

[0112] In the first structure, the first line L1 may surround the third line L3 (e.g., around its periphery), the fourth line L4 may surround the first line L1 (e.g., around its periphery), and the second line L2 may surround the fourth line L4 (e.g., around its periphery).

[0113] In the first structure, each of the first line L1, the second line L2, the third line L3, and the fourth line L4 may have a shape that is symmetrical or substantially symmetrical about the first center line CL1 and the second center line CL2. In the first structure, at least one of the first line L1, the second line L2, the third line L3, and the fourth line L4 may be circular. For example, as... Figure 5aAs shown, in the first structure, each of the first line L1, the second line L2, the third line L3, and the fourth line L4 can be circular. However, this disclosure is not limited to this, and the shapes of the first line L1, the second line L2, the third line L3, and the fourth line L4 can be modified in various ways as needed or desired. For example, in the first structure, the shape of each of the first line L1, the second line L2, the third line L3, and the fourth line L4 can be elliptical.

[0114] Multiple light-emitting elements (LEDs) can be provided. These LEDs can be arranged symmetrically or substantially symmetrically about a first center line CL1 and a second center line CL2. For example, the multiple LEDs may include multiple first light-emitting elements LED1 and multiple second light-emitting elements LED2.

[0115] A plurality of first light-emitting elements LED1 can be arranged along a first line L1. In other words, the center of each of the plurality of first light-emitting elements LED1 can be located on the first line L1. Therefore, the plurality of first light-emitting elements LED1 can surround a first center point CP1 (e.g., around its periphery). The spacing between the plurality of first light-emitting elements LED1 can be uniform or substantially uniform.

[0116] Multiple second light-emitting elements (LEDs) 2 can be arranged along a second line L2. In other words, the center of each of the multiple second light-emitting elements (LEDs) 2 can be located on the second line L2. Therefore, the multiple second light-emitting elements (LEDs) 2 can surround a first center point CP1 (e.g., around its periphery). The spacing between the multiple second light-emitting elements (LEDs) 2 can be uniform or substantially uniform. Because the second line L2 surrounds the first line L1 (e.g., around its periphery), the circumference of the second line L2 can be greater than the circumference of the first line L1. Accordingly, the number of multiple second light-emitting elements (LEDs) 2 can be greater than the number of multiple first light-emitting elements (LEDs) 1.

[0117] In the first structure, the first distance d1, which is the distance from the first center point CP1 to the first line L1, can be greater than the second distance d2, which is the distance from the first line L1 to the second line L2. In this case, the first distance d1 can be the distance between the first center point CP1 and the intersection point ISP1 between the first center line CL1 and the first line L1. Conversely, the second distance d2 can be the distance between the intersection point ISP1 between the first center line CL1 and the first line L1 and the intersection point ISP2 between the first center line CL1 and the second line L2.

[0118] The cover frame 131 of the cover layer 130 can be disposed on the light-emitting element LED. Multiple cover openings OP130 can overlap with multiple light-emitting elements LED. The number of multiple cover openings OP130 can be the same as the number of multiple light-emitting elements LED, and one light-emitting element LED can correspond to one cover opening OP130.

[0119] In the plan view, the size of each of the plurality of covering openings OP130 can be larger than the size of each of the plurality of light-emitting elements LEDs. In the plan view, the size of any one of the plurality of covering openings OP130 can be larger than the sum of the sizes of the first sub-light-emitting element LEDs1, the second sub-light-emitting element LEDs2, and the third sub-light-emitting element LEDs3 corresponding to any one of the light-emitting elements LEDs corresponding to the covering opening OP130. Therefore, in the plan view, the covering frame 131 and the plurality of light-emitting elements LEDs can be non-overlapping.

[0120] Multiple coverage openings OP130 may be provided in the cover layer 130. The multiple coverage openings OP130 may be arranged symmetrically or substantially symmetrically about the first center line CL1 and the second center line CL2. For example, the multiple coverage openings OP130 may include multiple first coverage openings OP1301 and multiple second coverage openings OP1302.

[0121] A plurality of first coverage openings OP1301 may be arranged along a third line L3. In other words, the center of each of the plurality of first coverage openings OP1301 may be located on the third line L3. Therefore, the plurality of first coverage openings OP1301 may surround a first center point CP1 (e.g., around its periphery). The spacing between the plurality of first coverage openings OP1301 may be uniform or substantially uniform.

[0122] Multiple second coverage openings OP1302 can be arranged along a fourth line L4. In other words, the center of each of the multiple second coverage openings OP1302 can be set on the fourth line L4. Therefore, the multiple second coverage openings OP1302 can surround the first center point CP1 (e.g., around its periphery). The spacing between the multiple second coverage openings OP1302 can be uniform or substantially uniform.

[0123] In the first structure, the third distance d3, which is the distance from the first center point CP1 to the third line L3, can be equal to or substantially equal to the fourth distance d4, which is the distance from the third line L3 to the fourth line L4. In this case, the third distance d3 can be the distance between the first center point CP1 and the intersection point ISP3 between the first center line CL1 and the third line L3. Furthermore, the fourth distance d4 can be the distance between the intersection point ISP3 between the first center line CL1 and the third line L3 and the intersection point ISP4 between the first center line CL1 and the fourth line L4.

[0124] In the above structure, even if the first distance d1 is different from the second distance d2, the multiple pixels PX can be arranged uniformly or substantially uniformly because the covering opening OP130 is defined as pixel PX, and the third distance d3 is the same or substantially the same as the fourth distance d4.

[0125] Figure 6a This is a schematic plan view of a display device 1 according to an embodiment. Figure 6b This is a schematic cross-sectional view of a display device 1 according to one embodiment.

[0126] More in detail, Figure 6a yes Figure 4 An enlarged view of area B, and Figure 6b It is along Figure 6a A cross-sectional view of display device 1 taken by line VI-VI'.

[0127] exist Figure 6a and Figure 6b In the middle, with reference above Figure 5a and Figure 5b The same reference numerals are used to denote the same or substantially the same components, and therefore, redundant descriptions need not be repeated.

[0128] refer to Figure 6a and Figure 6b The display device 1 may include a display panel 10 and a driver 400. The display panel 10 may include a substrate 100, a circuit element layer 110, a light-emitting element LED, a barrier layer 120, a cover layer 130, and an encapsulation layer 300.

[0129] The substrate 100 may have flexible, rollable, and / or bendable properties. A circuit element layer 110 may be disposed on the substrate 100. The circuit element layer 110 may include a pixel driving circuit portion PC. For example, the pixel driving circuit portion PC may include a first pixel driving circuit portion PC1, a second pixel driving circuit portion PC2, and a third pixel driving circuit portion PC3 spaced apart from each other. A barrier layer 120 may be disposed on the circuit element layer 110.

[0130] The light-emitting element (LED) can be disposed on the circuit element layer 110 and can be electrically connected to the pixel driving circuit section PC. The light-emitting element (LED) may include multiple sub-light-emitting elements (LEDs1, LEDs2, and LEDs3). For example, the light-emitting element (LED) may include a first sub-light-emitting element (LEDs1), a second sub-light-emitting element (LEDs2), and a third sub-light-emitting element (LEDs3).

[0131] The first sub-light-emitting element LEDs1 may include a first pixel electrode 211, a first emitting layer 212, a common electrode 201, a first functional layer 202, and a second functional layer 203. The second sub-light-emitting element LEDs2 may include a second pixel electrode 221, a second emitting layer 222, a common electrode 201, a first functional layer 202, and a second functional layer 203. The third sub-light-emitting element LEDs3 may include a third pixel electrode 231, a third emitting layer 232, a common electrode 201, a first functional layer 202, and a second functional layer 203. A barrier layer 120 may be disposed on the first to third pixel electrodes 211, 221, and 231. The barrier layer 120 may include a covering portion 121 and a barrier opening OP120.

[0132] The cover layer 130 can be disposed on the substrate 100. The cover layer 130 can be disposed on the common electrode 201 of the light-emitting element LED. The cover layer 130 may include a cover frame 131, a support member 132, and a cover opening OP130.

[0133] The cover frame 131 may be disposed on the substrate 100 and may be spaced apart from the common electrode 201. The cover frame 131 may include an opaque material. For example, the cover frame 131 may include at least one of thermoplastic polyurethane (TPU), thermoplastic polyethylene (TPE), and silicone rubber.

[0134] The support member 132 can support the cover frame 131 from the substrate 100. For example, at least a portion of the support member 132 can be arranged in the non-display area NDA (e.g., see reference). Figure 4 The support member 132 is embedded within the cover frame 131 and can support the cover frame 131. One side of the support member 132 can be fixed to the common electrode 201, and the other side (e.g., the opposite side) of the support member 132 can be fixed to the cover frame 131. The support member 132 may comprise the same material as the cover frame 131. For example, the support member 132 may comprise at least one of TPU, TPE, and silicone rubber. The support member 132 may be integrally formed with the cover frame 131.

[0135] A cover opening OP130 can be disposed within a cover frame 131. The cover opening OP130 can extend through the cover frame 131. The cover opening OP130 can overlap with a light-emitting element (LED). For example, a cover opening OP130 can overlap with a first sub-light-emitting element (LEDs1), a second sub-light-emitting element (LEDs2), and a third sub-light-emitting element (LEDs3). The light-emitting element (LED) can be exposed to the outside of the cover frame 131 through the cover opening OP130. Light emitted from the light-emitting element (LED) can be displayed externally through the cover opening OP130. Therefore, the light-emitting element (LED) can be defined as a pixel (PX).

[0136] The encapsulation layer 300 may be disposed on the substrate 100. The encapsulation layer 300 may be disposed on the cover layer 130. The encapsulation layer 300 may be supported by the cover layer 130. The encapsulation layer 300 may include at least one inorganic layer and at least one organic layer. For example, the encapsulation layer 300 may include a first inorganic encapsulation layer 310, an organic encapsulation layer 320 and a second inorganic encapsulation layer 330 stacked sequentially, but this disclosure is not limited thereto, and the encapsulation layer 300 may include various suitable structures.

[0137] Figure 7 This is a schematic plan view of a display device 1 according to an embodiment.

[0138] More in detail, Figure 7 yes Figure 4 An enlarged view of area A. In Figure 7 In the middle, with reference above Figure 5a The same reference numerals are used to denote the same or substantially the same components, and therefore, redundant descriptions need not be repeated.

[0139] In the following text, see references Figure 4 and Figure 7 The second structure of the display device 1 is described in more detail. The second structure of the display device 1 may be a structure radially stretched from the first structure of the display device 1. In other words, the display device 1 may... Figure 5a The first structure shown in the figure is the same as Figure 7 The conversion between the second structure shown in the figure.

[0140] The stretchability of substrate 100 can vary depending on its position. As substrate 100 moves further away from the first center point CP1, the stretchability of substrate 100 can increase. In other words, the stretchability of substrate 100 is minimum at the first center point CP1.

[0141] However, in the second structure, the shape of each of the first line L1, the second line L2, the third line L3, and the fourth line L4 can correspond to those shapes in the first structure. In the second structure, each of the first line L1, the second line L2, the third line L3, and the fourth line L4 can have a shape that is symmetrical or substantially symmetrical about the first center line CL1 and the second center line CL2. In the second structure, at least one of the first line L1, the second line L2, the third line L3, and the fourth line L4 can be circular. For example, as... Figure 7 As shown, in the second structure, each of the first line L1, the second line L2, the third line L3, and the fourth line L4 can be circular. However, this disclosure is not limited to this, and the shapes of the first line L1, the second line L2, the third line L3, and the fourth line L4 can be modified in various ways as needed or desired. For example, in the second structure, the shapes of the first line L1, the second line L2, the third line L3, and the fourth line L4 can each be elliptical.

[0142] When the substrate 100 is stretched due to the transformation of the display device 1 from the first structure to the second structure, the first distance d1 and the second distance d2 can each increase. In other words, in the second structure, the first distance d1 and the second distance d2 can each become larger than the first distance d1 and the second distance d2 in the first structure. However, because the stretchability of the substrate 100 increases as the substrate 100 moves further away from the first center point CP1, the rate of increase of the second distance d2 when the display device 1 transforms from the first structure to the second structure can be greater than the rate of increase of the first distance d1.

[0143] Accordingly, in the first structure, the first distance d1 can be greater than the second distance d2, but as the display device 1 changes from the first structure to the second structure, the difference between the first distance d1 and the second distance d2 can be reduced. In other words, the difference between the distance between the first center point CP1 and the first line L1 and the distance between the first line L1 and the second line L2 in the second structure can be smaller than the difference between the distance between the first center point CP1 and the first line L1 and the distance between the first line L1 and the second line L2 in the first structure. For example, in the second structure, the first distance d1 and the second distance d2 can be the same or substantially the same as each other. In other words, the distance between the first center point CP1 and the first line L1 and the distance between the first line L1 and the second line L2 can be the same or substantially the same as each other.

[0144] The modulus of the cover frame 131 may be less than that of the substrate 100. Therefore, the stretchability of the cover frame 131, depending on its arrangement, may be uniform or substantially uniform compared to the stretchability of the substrate 100.

[0145] As the cover frame 131 is stretched due to the transformation of the display device 1 from the first structure to the second structure, the third distance d3 and the fourth distance d4 can each increase. In other words, in the second structure, the third distance d3 and the fourth distance d4 can each become larger than the third distance d3 and the fourth distance d4 in the first structure. However, because the stretchability of the cover frame 131 is maintained or substantially constant as the cover frame 131 moves away from the first center point CP1, the rate of increase of the third distance d3 and the fourth distance d4 can be the same or substantially the same when the display device 1 transforms from the first structure to the second structure.

[0146] Accordingly, in the first structure, the third distance d3 can be the same as or substantially the same as the fourth distance d4, and even when the display device 1 is converted from the first structure to the second structure, the third distance d3 can continue to be the same as or substantially the same as the fourth distance d4. In other words, in the second structure, the distance between the first center point CP1 and the third line L3 and the distance between the third line L3 and the fourth line L4 can be the same as or substantially the same as each other.

[0147] In the second structure, the first line L1 and the third line L3 can overlap each other. Additionally, in the second structure, the second line L2 and the fourth line L4 can overlap each other. Accordingly, in the second structure, the centers of the multiple light-emitting elements LEDs can be the same as or substantially the same as the centers of the multiple covering openings OP130.

[0148] Based on the above reference Figure 5a and Figure 7 In the described structure, in the second structure, the arrangement of each of the plurality of light-emitting elements (LEDs) and the plurality of covering openings (OP130) can be uniform or substantially uniform. Furthermore, in the second structure, the centers of the plurality of light-emitting elements (LEDs) can be the same as or substantially the same as the centers of the plurality of covering openings (OP130). In other words, even if the display device 1 is stretched, the non-uniform stretchability of the substrate 100 can be compensated for.

[0149] In some embodiments, the modulus of the cover frame 131 may be greater than the modulus of the substrate 100.

[0150] In this embodiment, in the first structure, the first distance d1, which is the distance from the first center point CP1 to the first line L1, can be the same as or substantially the same as the second distance d2, which is the distance from the first line L1 to the second line L2. In this case, the first distance d1 can be the distance between the first center point CP1 and the intersection point ISP1 between the first center line CL1 and the first line L1. Conversely, the second distance d2 can be the distance between the intersection point ISP1 between the first center line CL1 and the first line L1 and the intersection point ISP2 between the first center line CL1 and the second line L2.

[0151] Furthermore, in the first structure, the third distance d3, which is the distance from the first center point CP1 to the third line L3, can be greater than the fourth distance d4, which is the distance from the third line L3 to the fourth line L4. In this case, the third distance d3 can be the distance between the first center point CP1 and the intersection point ISP3 between the first center line CL1 and the third line L3. Conversely, the fourth distance d4 can be the distance between the intersection point ISP3 between the first center line CL1 and the third line L3 and the intersection point ISP4 between the first center line CL1 and the fourth line L4.

[0152] Accordingly, in the second structure, the arrangement of each of the plurality of light-emitting elements (LEDs) and the plurality of covering openings (OP130) can be uniform or substantially uniform. Furthermore, in the second structure, the centers of the plurality of light-emitting elements (LEDs) can be the same as or substantially the same as the centers of the plurality of covering openings (OP130). In other words, even if the display device 1 is stretched, the non-uniform stretchability of the substrate 100 can be compensated for.

[0153] Figure 8 This is a schematic exploded view of a driver 400 according to one embodiment. Figure 9 and Figure 10 This is a schematic perspective view of a driver 400 according to one embodiment.

[0154] refer to Figures 8 to 10 The actuator 400 may have an extended pulley structure. The actuator 400 may include a guide portion 410, an arm portion 420, a rotating portion 430, and a power generating portion 440.

[0155] The guide portion 410 may include a guide frame 411 and guide grooves 412. The guide frame 411 may form the appearance of the guide portion 410. A plurality of guide grooves 412 may be provided, and the plurality of guide grooves 412 may be arranged radially along the circumferential direction of the guide frame 411. The plurality of guide grooves 412 may each extend radially outward from the center of the guide frame 411. The guide grooves 412 may be arranged on a plane defined in a first direction (e.g., the x-direction and / or the -x-direction) and a second direction (e.g., the y-direction and / or the -y-direction).

[0156] Multiple arm portions 420 may be provided in a number corresponding to the number of guide slots 412. The multiple arm portions 420 may be arranged radially along the circumferential direction of the guide portion 410 for connection to the guide portion 410. Each of the multiple arm portions 420 may include an arm frame 421 and a protrusion 422.

[0157] At least a portion of the boom frame 421 can be accommodated in the guide groove 412. At least a portion of the boom frame 421 can have a shape corresponding to the shape of the guide groove 412. Because the guide groove 412 includes a longitudinal direction, the boom frame 421 accommodated in the guide groove 412 can move linearly. In other words, the boom frame 421 can move radially in a linear manner toward or away from the center of the guide frame 411.

[0158] The protrusion 422 can be fixed to the arm frame 421. The protrusion 422 can protrude from the arm frame 421 in a third direction (e.g., the z-direction). The protrusion 422 can have a cylindrical shape. In other words, in a plan view, the protrusion 422 can have a circular shape.

[0159] The rotating part 430 can be connected to the arm part 420. The rotating part 430 may include a rotating frame 431 and a rotating opening 432. The rotating frame 431 can form the appearance of the rotating part 430. The rotating frame 431 may have a disc shape.

[0160] Multiple rotating openings 432 can be provided to correspond to the number of protrusions 422, and can be disposed at the rotating frame 431 (e.g., in the center). The multiple rotating openings 432 can be arranged radially relative to the center of the rotating frame 431. The multiple rotating openings 432 can be arranged in a helical shape. For example, as... Figures 8 to 10 As shown, each of the plurality of rotating openings 432 can be rotated counterclockwise away from the center of the rotating frame 431. As another example, with... Figures 8 to 10 Unlike the example, each of the plurality of rotating openings 432 can be located away from the center of the rotating frame 431 in a clockwise direction relative to the center of the rotating frame 431.

[0161] The plurality of rotating openings 432 may have shapes corresponding to the shapes of the plurality of protrusions 422. The plurality of protrusions 422 may be accommodated in the plurality of rotating openings 432. One rotating opening 432 may accommodate one protrusion 422 corresponding to it.

[0162] The power generating unit 440 can generate power to move the guide portion 410 and the rotating portion 430 relative to each other. The power generating unit 440 can connect the center of the guide frame 411 to the center of the rotating frame 431. For example, the power generating unit 440 may include a rotary motor. Therefore, the rotating portion 430 can rotate relative to the guide portion 410.

[0163] Therefore, when the power generating unit 440 rotates the rotating unit 430 relative to the guide unit 410, the driver 400 can... Figure 9 The first form shown in the figure is the same as Figure 10 The conversion between the second form shown in the figure.

[0164] refer to Figures 3 to 10 The driver 400 can be connected to the display panel. The driver 400 can be fixed to one side of the substrate 100. For example, the arm frame 421 of the driver 400 can be fixed to the outside of the display panel.

[0165] For example, an adhesive component such as pressure-sensitive adhesive (PSA) can secure the driver 400 to the display panel. However, this disclosure is not limited thereto, and a separate adhesive film can be placed between the display panel and the driver 400 to secure the display panel to the driver 400.

[0166] The driver 400 can be configured to radially expand or shrink (e.g., relax or compress) the substrate 100. For example, when the driver 400 is converted from a first form to a second form, the display device 1 can be converted from a first structure to a second structure as the substrate 100 is radially stretched. Conversely, when the driver 400 is converted from a second form to a first form, the display device 1 can be converted from a second structure to a first structure as the substrate 100 is radially shrinked (e.g., radially compressed).

[0167] Figure 11 It is shown that Figure 1 A perspective view of the display device 1 in a radially stretched state.

[0168] The display device 1 can be radially stretched by an external object or a user's external force. For example, the display device 1 can be quadrilateral and can be stretched from the center in the diametrical direction.

[0169] The display device 1 may include a display panel 10 and a driver 400. The display panel 10 may include the above-mentioned reference. Figure 1 The description refers to the display area DA and the non-display area NDA. In one embodiment, the display area DA and / or the non-display area NDA can be radially stretched or reduced. A driver 400 can be fixed to one side of the display panel 10 and can provide a driving force to the display panel 10, causing the display panel 10 to be stretched or reduced. References below... Figures 12a to 13b The driver 400 is described in more detail.

[0170] Figure 12a and Figure 12b This is a schematic plan view of a driver 400 according to one embodiment.

[0171] refer to Figure 12a and Figure 12b The driver 400 may include a first power generating part 441, a second power generating part 442, a first contact part 451, a second contact part 452, and a fixing part 453.

[0172] The first power generating unit 441 can generate power for the linear movement of the first contact portion 451. The first power generating unit 441 can include a first-1 portion 4411 and a first-2 portion 4412. The first-1 portion 4411 and the first-2 portion 4412 can be connected to each other. The first-1 portion 4411 and the first-2 portion 4412 can move linearly relative to each other. For example, the first power generating unit 441 can include a linear motor.

[0173] The second power generating unit 442 can generate power for the linear movement of the second contact portion 452. The second power generating unit 442 may include a second-1 portion 4421 and a second-2 portion 4422. The second-1 portion 4421 and the second-2 portion 4422 may be connected to each other. The second-1 portion 4421 and the second-2 portion 4422 may move linearly relative to each other. For example, the second power generating unit 442 may include a linear motor.

[0174] The first power generating unit 441 and the second power generating unit 442 can be fixed to each other. More specifically, the first-1 portion 4411 and the second-1 portion 4421 can be fixed to each other. The direction of the power generated by the first power generating unit 441 and the direction of the power generated by the second power generating unit 442 can intersect each other. For example, the first power generating unit 441 can generate power in a first direction (e.g., the x-direction or the -x-direction), and the second power generating unit 442 can generate power in a second direction (e.g., the y-direction or the -y-direction). In the above structure, the first-2 portion 4412 and the second-2 portion 4422 can move linearly in the intersecting directions. For example, the first-2 portion 4412 can move relative to the first-1 portion 4411 in a first direction (e.g., the x-direction or the -x-direction), and the second-2 portion 4422 can move relative to the second-1 portion 4421 in a second direction (e.g., the y-direction or the -y-direction).

[0175] Therefore, when the first power generating unit 441 moves the first contact portion 451 and the second power generating unit 442 moves the second contact portion 452, the driver 400 can... Figure 12a The first form shown in the figure is the same as Figure 12b The conversion between the second form shown in the figure.

[0176] The first contact portion 451 can be fixed to the first power generating portion 441. More specifically, the first contact portion 451 can be fixed to the first-second portion 4412. Therefore, the first contact portion 451 can move linearly relative to the first-second portion 4411 in a first direction (e.g., the x-direction or the -x-direction). The first contact portion 451 can extend in a second direction (e.g., the y-direction or the -y-direction).

[0177] The second contact portion 452 can be fixed to the second power generating portion 442. More specifically, the second contact portion 452 can be fixed to the second-second portion 4422. Therefore, the second contact portion 452 can move linearly relative to the second-first portion 4421 in a second direction (e.g., the y-direction or the -y-direction). The second contact portion 452 can extend in a first direction (e.g., the x-direction or the -x-direction).

[0178] The fixing portion 453 can be fixed to at least one of the first power generating portion 441 and the second power generating portion 442. More specifically, the fixing portion 453 can be fixed to at least one of the first-1 portion 4411 and / or the first-2 portion 4412. For example, as Figure 12a and Figure 12b As shown, the fixing part 453 can be fixed to the first part 4411.

[0179] refer to Figures 1 to 7 as well as Figures 11 to 12b The driver 400 can be connected to the display panel 10. The driver 400 can be fixed to one side of the substrate 100. For example, the first contact portion 451, the second contact portion 452, and the fixing portion 453 of the driver 400 can be fixed to the outside of the display panel 10.

[0180] Figure 13a and Figure 13b This is a schematic plan view of a driver 400 according to one embodiment.

[0181] refer to Figure 13a and Figure 13b The driver 400 may include a first power generating unit 441, a second power generating unit 442, a third power generating unit 443, a fourth power generating unit 444, a first contact portion 451, a second contact portion 452, a third contact portion 453, and a fourth contact portion 454.

[0182] The first power generating unit 441 can generate power for the linear movement of the first contact portion 451. The first power generating unit 441 can include a first-1 portion 4411 and a first-2 portion 4412. The first-1 portion 4411 and the first-2 portion 4412 can be connected to each other. The first-1 portion 4411 and the first-2 portion 4412 can move linearly relative to each other. For example, the first power generating unit 441 can include a linear motor.

[0183] The second power generating unit 442 can generate power for the linear movement of the second contact portion 452. The second power generating unit 442 may include a second-1 portion 4421 and a second-2 portion 4422. The second-1 portion 4421 and the second-2 portion 4422 may be connected to each other. The second-1 portion 4421 and the second-2 portion 4422 may move linearly relative to each other. For example, the second power generating unit 442 may include a linear motor.

[0184] The third power generating unit 443 can generate power for the linear movement of the third contact portion 453. The third power generating unit 443 can include a third-first portion 4431 and a third-second portion 4432. The third-first portion 4431 and the third-second portion 4432 can be connected to each other. The third-first portion 4431 and the third-second portion 4432 can move linearly relative to each other. For example, the third power generating unit 443 can include a linear motor.

[0185] The fourth power generating unit 444 can generate power for the linear movement of the fourth contact portion 454. The fourth power generating unit 444 may include a fourth-first portion 4441 and a fourth-second portion 4442. The fourth-first portion 4441 and the fourth-second portion 4442 may be connected to each other. The fourth-first portion 4441 and the fourth-second portion 4442 may move linearly relative to each other. For example, the fourth power generating unit 444 may include a linear motor.

[0186] The first power generating unit 441, the second power generating unit 442, the third power generating unit 443, and the fourth power generating unit 444 can be fixed to each other. More specifically, the first-1 part 4411, the first-2 part 4412, the first-3 part, and the first-4 part can be fixed to each other.

[0187] The directions of the power generated by the first power generating unit 441 and the second power generating unit 442 can intersect each other. The directions of the power generated by the second power generating unit 442 and the third power generating unit 443 can intersect each other. The directions of the power generated by the third power generating unit 443 and the fourth power generating unit 444 can intersect each other. The direction of the power generated by the fourth power generating unit 444 and the direction of the power generated by the first power generating unit 441 can intersect each other.

[0188] The direction of the power generated by the first power generating unit 441 and the direction of the power generated by the third power generating unit 443 can be opposite to each other. The direction of the power generated by the second power generating unit 442 and the direction of the power generated by the fourth power generating unit 444 can be opposite to each other.

[0189] For example, the first power generating unit 441 can generate power in a first direction (e.g., the x direction), the second power generating unit 442 can generate power in a second direction (e.g., the y direction), the third power generating unit 443 can generate power in the first direction (e.g., the -x direction), and the fourth power generating unit 444 can generate power in the second direction (e.g., the -y direction).

[0190] In the above structure, the first-second part 4412 and the second-second part 4422 can move linearly in directions that intersect each other, the second-second part 4422 and the third-second part 4432 can move linearly in directions that intersect each other, the third-second part 4432 and the fourth-second part 4442 can move linearly in directions that intersect each other, and the fourth-second part 4442 and the first-second part 4412 can move linearly in directions that intersect each other.

[0191] Additionally, parts 1-2 4412 and 3-2 4432 can move linearly in opposite directions, and parts 2-2 4422 and 4-2 4442 can move linearly in opposite directions.

[0192] For example, the first-second part 4412 can move relative to the first-first part 4411 in a first direction (e.g., the x direction), the second-second part 4422 can move relative to the second-first part 4421 in a second direction (e.g., the y direction), the third-second part 4432 can move relative to the third-first part 4431 in a first direction (e.g., the -x direction), and the fourth-second part 4442 can move relative to the fourth-first part 4441 in a second direction (e.g., the -y direction).

[0193] Therefore, when the first power generating unit 441 moves the first contact portion 451, the second power generating unit 442 moves the second contact portion 452, the third power generating unit 443 moves the third contact portion 453, and the fourth power generating unit 444 moves the fourth contact portion 454, the driver 400 can... Figure 13a The first form shown in the figure is the same as Figure 13b The conversion between the second form shown in the figure.

[0194] The first contact portion 451 can be fixed to the first power generating portion 441. More specifically, the first contact portion 451 can be fixed to the first-second portion 4412. Therefore, the first contact portion 451 can move linearly relative to the first-second portion 4411 in a first direction (e.g., the x-direction). The first contact portion 451 can extend in a second direction (e.g., the y-direction or the -y-direction).

[0195] The second contact portion 452 can be fixed to the second power generating portion 442. More specifically, the second contact portion 452 can be fixed to the second-second portion 4422. Therefore, the second contact portion 452 can move linearly relative to the second-first portion 4421 in a second direction (e.g., the y-direction). The second contact portion 452 can extend in a first direction (e.g., the x-direction or the -x-direction).

[0196] The third contact portion 453 can be fixed to the third power generating portion 443. More specifically, the third contact portion 453 can be fixed to the third-second portion 4432. Therefore, the third contact portion 453 can move linearly relative to the third-first portion 4431 in a first direction (e.g., the -x direction). The third contact portion 453 can extend in a second direction (e.g., the y direction or the -y direction).

[0197] The fourth contact portion 454 can be fixed to the fourth power generating unit 444. More specifically, the fourth contact portion 454 can be fixed to the fourth-second portion 4442. Therefore, the fourth contact portion 454 can move linearly relative to the fourth-first portion 4441 in a second direction (e.g., the -y direction). The fourth contact portion 454 can extend in a first direction (e.g., the x direction or the -x direction).

[0198] refer to Figures 1 to 7 as well as Figures 11 to 13b The driver 400 can be connected to the display panel 10. The driver 400 can be fixed to one side of the substrate 100. For example, the first contact portion 451, the second contact portion 452, the third contact portion 453 and the fourth contact portion 454 of the driver 400 can be fixed to the outside of the display panel 10.

[0199] Figures 14a to 14c This is an equivalent circuit diagram of a sub-pixel of a display device 1 according to one or more embodiments.

[0200] refer to Figure 14a The light-emitting element (LED) corresponding to the sub-pixel can be electrically connected to the pixel driving circuit section PC. The pixel driving circuit section PC may include a first transistor T1, a second transistor T2, and a storage capacitor Cst. The pixel driving circuit section PC can be electrically connected to signal lines and voltage lines. The signal lines may include gate lines such as the first scan line SL1 and data lines DL, and the voltage lines may include the first voltage line VDDL.

[0201] 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 the first scan signal GW1 to the gate electrode of the second transistor T2. The second transistor T2 can transmit the 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.

[0202] The storage capacitor Cst is electrically connected to the second transistor T2 and the first voltage line VDDL, and can store a voltage corresponding to the difference between the voltage received from the second transistor T2 and the first power supply voltage VDD supplied by the first voltage line VDDL.

[0203] The first transistor T1 is a drive transistor capable of controlling the drive current flowing through the 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 the drive current flowing from the first voltage line VDDL through the light-emitting element LED according to the voltage value stored in the storage capacitor CST. The light-emitting element LED can emit light with a desired brightness (e.g., a specific or predetermined brightness) depending on the drive current. The first electrode of the light-emitting element LED can be electrically connected to the first transistor T1, and the second electrode of the light-emitting element LED can be electrically connected to a second voltage line VSSL for supplying a second power supply voltage VSS.

[0204] Figure 14a The pixel driving circuit section PC shown includes two transistors and a storage capacitor. However, in some embodiments, the pixel driving circuit section PC may include three or more transistors.

[0205] refer to Figure 14b The pixel driving circuit PC may include a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, and a storage capacitor Cst.

[0206] The pixel driving circuit PC can be electrically connected to signal lines and voltage lines. Signal lines may include gate lines and data lines DL such as the first scan line SL1, second scan line SL2, third scan line SL3, fourth scan line SL4, and the transmit control line EML. Voltage lines may include the first initialization voltage line VIL1, the second initialization voltage line VIL2, and the first voltage line VDDL.

[0207] The first voltage line VDDL transmits the first power supply voltage VDD to the first transistor T1. The first initialization voltage line VIL1 transmits the first initialization voltage Vint, configured to initialize the first transistor T1, to the pixel driving circuit section PC. The second initialization voltage line VIL2 transmits the second initialization voltage Vaint, configured to initialize the first electrode of the light-emitting element LED, to the pixel driving circuit section PC.

[0208] The first transistor T1 can be electrically connected to the first voltage line VDDL via the fifth transistor T5, and can be electrically connected to the light-emitting element LED via the sixth transistor T6. The first transistor T1 can act as a driving transistor, receiving the data signal Dm according to the switching operation of the second transistor T2, and supplying driving current to the light-emitting element LED.

[0209] The second transistor T2 is a data write transistor and is electrically connected to the first scan line SL1 and the data line DL. The second transistor T2 is electrically connected to the first voltage line VDDL via the fifth transistor T5. The second transistor T2 is turned on according to the first scan signal GW received through the first scan line SL1 and performs a switching operation for transmitting the data signal Dm received through the data line DL to the first node N1.

[0210] 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 and can be diode-connected to the first transistor T1.

[0211] The fourth transistor T4 is the 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, thereby initializing the voltage at 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 section PC arranged in the row preceding the pixel driving circuit section PC corresponding to the third scan signal GI.

[0212] The fifth transistor T5 can be an operation control transistor, and the sixth transistor T6 can be an emitter control transistor. The fifth transistor T5 and the sixth transistor T6 can be electrically connected to the emitter control line EML, and can be turned on together (e.g., simultaneously or substantially simultaneously) according to the emitter control signal EM received through the emitter control line EML, thereby forming a current path through which the drive current can flow from the first voltage line VDDL toward the light-emitting element LED.

[0213] The seventh transistor T7 is the second initialization transistor and can be electrically connected to the second scan line SL2, the second initialization voltage line VIL2, and the sixth transistor T6. The seventh transistor T7 is turned on according to the second scan signal GB received through the second scan line SL2, and transmits the second initialization voltage Vaint from the second initialization voltage line VIL2 to the first electrode of the light-emitting element LED, thereby initializing the first electrode of the light-emitting element LED.

[0214] The storage capacitor Cst includes a first electrode CE1 and a second electrode CE2. The first electrode CE1 is electrically connected to the gate electrode of the first transistor T1, and the second electrode CE2 is electrically connected to the first voltage line VDDL. The storage capacitor Cst can store and maintain a voltage corresponding to the voltage difference between the first voltage line VDDL and the gate electrode of the first transistor T1, thereby maintaining or substantially maintaining the voltage applied to the gate electrode of the first transistor T1.

[0215] refer to Figure 14c The pixel driving circuit PC may include a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, an eighth transistor T8, a ninth transistor T9, a storage capacitor Cst, and an auxiliary capacitor Ca.

[0216] The pixel driving circuit PC can be electrically connected to signal lines and voltage lines. Signal lines may include gate lines such as the first scan line SL1, second scan line SL2, third scan line SL3, fourth scan line SL4, and transmit control line EML, as well as data lines DL. Voltage lines may include the first initialization voltage line VIL1, the second initialization voltage line VIL2, the sustain voltage line VSL, and the first voltage line VDDL.

[0217] The first voltage line VDDL transmits the first power supply voltage VDD to the first transistor T1. The first initialization voltage line VIL1 transmits the first initialization voltage Vint, configured to initialize the first transistor T1, to the pixel driving circuit section PC. The second initialization voltage line VIL2 transmits the second initialization voltage Vaint, configured to initialize the first electrode of the light-emitting element LED, to the pixel driving circuit section PC. During the initialization and data write intervals, the sustain voltage line VSL supplies the sustain voltage VSUS to the second node N2, such as to the second electrode CE2 of the storage capacitor Cst.

[0218] The first transistor T1 can be electrically connected to the first voltage line VDDL via the fifth transistor T5 and the eighth transistor T8, and can be electrically connected to the light-emitting element LED via the sixth transistor T6. The first transistor T1 can act as a driving transistor, receiving the data signal Dm according to the switching operation of the second transistor T2, and can supply driving current to the light-emitting element LED.

[0219] The second transistor T2 is electrically connected to the first scan line SL1 and the data line DL, and is also electrically connected to the first voltage line VDDL via the fifth transistor T5 and the eighth transistor T8. The second transistor T2 is turned on according to the first scan signal GW received through the first scan line SL1, and performs a switching operation to transmit the data signal Dm received through the data line DL to the first node N1.

[0220] 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 according to the first scan signal GW received through the first scan line SL1 and can be diode-connected to the first transistor T1 to compensate for the threshold voltage of the first transistor T1.

[0221] The fourth transistor T4 is electrically connected to the third scan line SL3 and the first initialization voltage line VIL1. It can be turned on according to the third scan signal GI received through the third scan line SL3, and can transmit the first initialization voltage Vint from the first initialization voltage line VIL1 to the gate electrode of the first transistor T1, thereby initializing the voltage of the gate electrode of the first transistor T1. The third scan signal GI can correspond to the first scan signal of another pixel driving circuit section PC arranged in the row preceding the pixel driving circuit section PC corresponding to the third scan signal GI.

[0222] The fifth transistor T5, the sixth transistor T6, and the eighth transistor T8 can be electrically connected to the emitter control line EML, and can be turned on together (e.g., simultaneously or substantially simultaneously) according to the emitter control signal EM received through the emitter control line EML, thereby forming a current path through which the drive current can flow from the first voltage line VDDL toward the light-emitting element LED.

[0223] The seventh transistor T7 is the second initialization transistor and can be electrically connected to the second scan line SL2, the second initialization voltage line VIL2, and the sixth transistor T6. The seventh transistor T7 is turned on according to the second scan signal GB received through the second scan line SL2, and transmits the second initialization voltage Vaint from the second initialization voltage line VIL2 to the first electrode of the light-emitting element LED, thereby initializing the first electrode of the light-emitting element LED.

[0224] 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 sustaining voltage line VSL. During the initialization and data write intervals, the ninth transistor T9 can be turned on according to the second scan signal GB received through the second scan line SL2, and can transmit the sustaining voltage VSUS to the second node N2, such as to the second electrode CE2 of the storage capacitor Cst.

[0225] The eighth transistor T8 and the ninth transistor T9 can each be electrically connected to the second node N2, such as to the second electrode CE2 of the storage capacitor Cst. In some embodiments, during the initialization and data write intervals, the eighth transistor T8 can be turned off and the ninth transistor T9 can be turned on, and during the emitt interval, the eighth transistor T8 can be turned on and the ninth transistor T9 can be turned off. Because the sustaining voltage VSUS is transmitted to the second node N2 during the initialization and data write intervals, the long-range uniformity (LRU) of the display device's brightness can be improved based on the voltage drop across the first voltage line VDDL.

[0226] 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.

[0227] An auxiliary capacitor Ca can be electrically connected to the sixth transistor T6, the sustaining voltage line VSL, and the first electrode of the light-emitting element LED. When the seventh transistor T7 and the ninth transistor T9 are turned on, the auxiliary capacitor Ca stores and sustains or substantially sustains a voltage corresponding to the voltage difference between the first electrode of the light-emitting element LED and the sustaining voltage line VSL, thereby preventing or substantially preventing the black brightness from increasing when the sixth transistor T6 is turned off.

[0228] Figures 15a to 15g This is a schematic perspective view illustrating various embodiments of an electronic device including a display device according to one or more embodiments.

[0229] refer to Figure 15a According to one embodiment, the display device can be used in a wearable electronic device 3100 that can be worn on any suitable part of a user's body. The wearable electronic device 3100 may include a main body portion 3110 and a display portion 3120 included in the main body portion 3110. The display device according to one embodiment can be used as the display portion 3120 of the wearable electronic device 3100. For example... Figure 15aAs shown, the wearable electronic device 3100 can be modified. In other words, the shape of the wearable electronic device 3100 can be modified. In one embodiment, depending on the user's choice, the wearable electronic device 3100 can be used as a smartwatch or a smartphone.

[0230] Figure 15b An example of a medical electronic device 3200 is shown. In one embodiment, the medical electronic device 3200 may include a main body portion 3210 and a light-emitting portion 3220. A display device according to one embodiment may be used as the light-emitting portion 3220 of the medical electronic device 3200. The light-emitting portion 3220 may emit light (e.g., infrared, visible light, etc.) of a desired wavelength band (e.g., a specific or predetermined wavelength band) toward the patient's body. In one embodiment, the main body portion 3210 may have a stretchable fiber material and may have a suitable structure that can be worn on the body of a user or patient.

[0231] Figure 15c An educational electronic device 3300 is shown. In one embodiment, the educational electronic device may include a display portion 3320 contained within a frame 3310. The display portion 3320 may use a display device according to one or more embodiments. The display portion 3320 may provide an image such as a sea with waves, a snow-covered mountain, or a volcano with lava flowing thereon, and the display portion 3320 may be stretched in a height direction (e.g., the z-direction) to reflect the height of the waves, mountains, or volcano. In some embodiments, a portion of the display portion 3320 may display the movement of lava in three dimensions by sequentially changing its height according to the direction of lava flow. The educational electronic device 3300 may include a plurality of pins (e.g., stroke portions 3330) arranged on the rear surface of the display portion 3320 such that the display portion 3320 may be stretched in a height direction (e.g., the z-direction). The pins 3330 may be implemented to move in a third direction (e.g., the z-direction or the -z-direction) such that the image represented by the display portion 3320 has a three-dimensional height. Figure 15c An example is the educational electronic device 3300, but its use is not limited to this, as long as it provides image information (e.g., pre-defined image information).

[0232] Figures 15a to 15c Examples of electronic devices whose shape can be modified are given, but this disclosure is not limited thereto. As described in more detail below, a display device according to some embodiments can be used in an electronic device in which an area in which an image (e.g., a screen) can be represented is fixed.

[0233] Figure 15dA robot 3400 as an electronic device according to one embodiment is shown. The robot 3400 can detect movement or objects using a camera portion 3440 and can display images (e.g., predetermined images) to a user via display portions 3420 and 3430. In some embodiments, because the display device can be stretched in various suitable directions as described above, the display device can be assembled to a main frame having a hemispherical shape, and therefore, the robot 3400 may include hemispherical display portions 3420 and 3430.

[0234] Figure 15e A vehicle display device 3500 as an electronic device according to one embodiment is shown. The vehicle display device 3500 may include an instrument panel 3510, a central information display (CID) 3520, and / or a front passenger or passenger display 3530. Because the display device according to some embodiments can be stretched in various suitable directions, the display device can be used in the instrument panel 3510, CID 3520, and / or front passenger or passenger display 3530 without being limited by the shape of the vehicle's internal frame.

[0235] Figure 15e For example, the instrument panel 3510, CID 3520, and front passenger or passenger display 3530 are separate from each other, but this disclosure is not limited thereto. In some embodiments, at least two of the instrument panel 3510, CID 3520, and front passenger or passenger display 3530 may be integrally connected to each other.

[0236] In some embodiments, the vehicle display device 3500 may include a button 3540 that can display an image (e.g., a predetermined image). Reference Figure 15e The enlarged view shows that the hemispherical button 3540 may include an object 3542 that can move in a third direction (e.g., the z-direction or the -z-direction) to provide a button feel, and a display device disposed on the object 3542. In some embodiments, when the object 3542 has a three-dimensional circular surface, the display device may also have a three-dimensional circular surface.

[0237] Figure 15f An example of an electronic device 3600 according to one embodiment can be used for advertising or exhibitions. In some embodiments, the electronic device 3600 for advertising or exhibitions can be mounted in a fixed structure 3610 such as a wall or pillar. When structure 3610 is as follows... Figure 15f When the diagram includes an uneven surface, the electronic device 3600 for advertising or exhibition can be arranged along the uneven surface of the structure 3610. In some embodiments, the electronic device 3600 for advertising or exhibition can be mounted in the structure 3610 using a heat-shrinkable film or the like.

[0238] Figure 15g A controller 3700 as an electronic device according to one embodiment is shown. The controller 3700 may include image-type buttons. For example, the controller 3700 may include first button areas to third button areas 3720, 3730, and 3740, which are portions of the display portion 3710 that protrude in the z-direction or in the -z-direction (or are recessed in the z-direction). In some embodiments, the first button area 3720 and the third button area 3740 may protrude in the z-direction, and the second button area 3730 may protrude in the -z-direction (or be recessed in the z-direction).

[0239] It should be understood that the embodiments described herein are to be considered in a descriptive sense only and are not intended to be limiting. Descriptions of features or aspects in each embodiment should generally be considered as other similar features or aspects that may be used in other embodiments. While one or more embodiments have been described with reference to the figures, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope defined by the appended claims.

Claims

1. A display device having a display area and a non-display area, the display device comprising: substrate; Multiple light-emitting elements are on the substrate; as well as Overlay layer, including: Covering frame, on the substrate and comprising an opaque material; and Multiple covering openings are provided within the covering frame to overlap with the multiple light-emitting elements. The plurality of light-emitting elements include: Multiple first light-emitting elements are positioned along a first line, which is a virtual closed curve centered on a first center point; and Multiple second light-emitting elements are positioned along a second line, which is a virtual closed curve centered on the first center point and surrounding the first line. The plurality of coverage openings include: Multiple first covering openings are positioned along a third line, said third line being a virtual closed curve centered on the first center point; and Multiple second covering openings are positioned along a fourth line, which is a virtual closed curve centered on the first center point and surrounding the third line.

2. The display device according to claim 1, wherein the distance between the first center point and the first line is greater than the distance between the first line and the second line.

3. The display device according to claim 1, wherein the distance between the first center point and the third line is equal to the distance between the third line and the fourth line.

4. The display device according to claim 1, wherein: The first line surrounds the third line; and The second line surrounds the fourth line.

5. The display device according to claim 1, wherein the modulus of the cover frame is less than the modulus of the substrate.

6. The display device according to claim 1, wherein, In the plan view, the size of each of the plurality of covering openings is larger than the size of each of the plurality of light-emitting elements.

7. The display device according to claim 1, wherein the plurality of light-emitting elements are symmetrically positioned about a first center line and a second center line, the first center line being a virtual line passing through the first center point in a first direction, and the second center line being a virtual line passing through the first center point in a second direction intersecting the first direction.

8. The display device of claim 1, wherein the plurality of covering openings are symmetrically positioned about a first center line and a second center line, the first center line being a virtual line passing through the first center point in a first direction, and the second center line being a virtual line passing through the first center point in a second direction intersecting the first direction.

9. The display device according to claim 1, wherein at least one of the first line, the second line, the third line, and the fourth line is circular.

10. The display device of claim 1, wherein the cover frame comprises at least one of thermoplastic polyurethane, thermoplastic polyethylene, and silicone rubber.

11. The display device of claim 1, wherein the cover layer further includes a support member configured to support the cover frame from the substrate.

12. The display device of claim 1, further comprising a driver connected to one side of the substrate and configured to drive the substrate to be radially stretched.

13. The display device of claim 12, wherein the driver includes an extended pulley structure.

14. A display device capable of switching between a first structure and a second structure radially stretched from the first structure, the display device comprising: substrate; Multiple light-emitting elements are on the substrate; as well as Overlay layer, including: Covering frame, on the substrate and comprising an opaque material; and The cover opening is located within the cover frame and overlaps with the plurality of light-emitting elements. The plurality of light-emitting elements include: Multiple first light-emitting elements are positioned along a first line, which is a virtual closed curve centered on a first center point; and Multiple second light-emitting elements are positioned along a second line, which is a virtual closed curve centered on the first center point and surrounding the first line. The difference between the distance between the first center point and the first line in the second structure and the distance between the first line and the second line is less than the difference between the distance between the first center point and the first line in the first structure and the distance between the first line and the second line.

15. The display device of claim 14, wherein the covering opening comprises: Multiple first covering openings are positioned along a third line, which is a virtual closed curve centered on the first center point; as well as Multiple second covering openings are positioned along a fourth line, which is a virtual closed curve centered on the first center point and surrounding the third line. In each of the first structure and the second structure, the distance between the first center point and the third line is equal to the distance between the third line and the fourth line.

16. The display device according to claim 15, wherein, In the second structure, the first line overlaps with the third line.

17. The display device according to claim 15, wherein, In the second structure, the second line overlaps with the fourth line.

18. The display device according to claim 14, wherein, In the first structure, the distance between the first center point and the first line is greater than the distance between the first line and the second line.

19. The display device according to claim 15, wherein, In each of the first structure and the second structure, at least one of the first line, the second line, the third line, and the fourth line is circular.

20. The display device of claim 14, further comprising a driver connected to one side of the substrate and configured to drive the substrate to be radially stretched or reduced.

Images