Display device and electronic device comprising same

The display device enhances stretchability by using substrates with varying modulus regions and auxiliary light-emitting elements, ensuring high-quality images during stretching.

WO2026095462A1PCT designated stage Publication Date: 2026-05-07SAMSUNG DISPLAY CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SAMSUNG DISPLAY CO LTD
Filing Date
2025-10-21
Publication Date
2026-05-07

AI Technical Summary

Technical Problem

Existing display panels lack sufficient stretchability, which affects the quality of the displayed image when subjected to stretching or deformation.

Method used

The display device incorporates a substrate with varying modulus regions and sealing portions to accommodate stretching, along with auxiliary light-emitting elements that activate or deactivate based on substrate tension, ensuring image quality during stretching.

Benefits of technology

The solution provides a display device with improved elasticity, maintaining excellent image quality even when stretched or deformed.

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Abstract

Disclosed, according to one embodiment of the present invention, is a display device comprising a display area and a non-display area, the display device comprising: a substrate; and a plurality of light-emitting elements disposed on the substrate so as to be spaced apart from each other along a first direction and a second direction intersecting the first direction. The display area comprises: a plurality of first display areas which extend in the first direction, overlap the plurality of light-emitting elements arranged along the first direction, and are disposed so as to be spaced apart from each other along the second direction; and a plurality of second display areas which extend in the first direction, overlap the plurality of light-emitting elements arranged along the first direction, and are disposed between two first display areas which are disposed so as to be adjacent to each other among the plurality of first display areas. The substrate comprises: a plurality of first substrate portions which overlap the plurality of first display areas; and a plurality of second substrate portions which overlap the plurality of second display areas, wherein at least one of the plurality of first substrate portions has a modulus that is greater than that of at least one of the plurality of second substrate portions.
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Description

Display device and electronic device including the same

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

[0002] In general, as display panels that visually display electrical signals advance, various display panels with excellent characteristics such as thinness, lightness, and low power consumption, as well as electronic devices containing them, are being introduced. For example, research and development is actively underway on display panels of various structures, such as flexible display panels that can be folded or rolled into a roll shape, and stretchable display panels, as well as electronic devices containing them.

[0003] Embodiments of the present invention aim to provide a display device and an electronic device including the same, which have improved stretchability and realize an image of excellent quality even when stretched. However, these objectives are exemplary and do not limit the scope of the present invention.

[0004] One embodiment of the present invention discloses a display device comprising a display area and a non-display area, comprising: a substrate; and a plurality of light-emitting elements disposed on the substrate such that they are spaced apart from each other along a first direction and a second direction intersecting the first direction; wherein the display area comprises a plurality of first display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are spaced apart from each other along the second direction; and a plurality of second display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are disposed between two of the plurality of first display areas that are adjacent to each other; wherein the substrate comprises a plurality of first substrate portions that overlap with the plurality of first display areas; and a plurality of second substrate portions that overlap with the plurality of second display areas; and wherein at least one of the plurality of first substrate portions has a modulus greater than at least one of the plurality of second substrate portions.

[0005] In one embodiment, the apparatus further comprises a sealing portion disposed on the plurality of light-emitting elements; wherein the sealing portion comprises a plurality of first sealing portions overlapping with the plurality of first display areas; and a plurality of second sealing portions overlapping with the plurality of second display areas; and each of the plurality of first sealing portions may comprise a plurality of first-1 sealing portions overlapping with the plurality of light-emitting elements; and a plurality of first-2 sealing portions disposed between the plurality of first-1 sealing portions.

[0006] In one embodiment, at least one of the plurality of first and second bag portions may have a modulus greater than at least one of the plurality of second bag portions.

[0007] In one embodiment, at least one of the plurality of first-1 bag portions may have the same modulus as at least one of the plurality of first-2 bag portions.

[0008] In one embodiment, the plurality of light-emitting elements may include: a plurality of first light-emitting elements arranged in the same row and electrically connected to a first signal line; and a plurality of second light-emitting elements arranged in the same row as the first light-emitting elements and electrically connected to a second signal line.

[0009] In one embodiment, the apparatus further includes an auxiliary light-emitting element positioned between two adjacent light-emitting elements among the plurality of light-emitting elements, wherein the auxiliary light-emitting element operates when the substrate is stretched in a first direction and can be turned off when the substrate is contracted in a first direction.

[0010] In one embodiment, the auxiliary light-emitting element may be placed in at least one of the plurality of second display areas.

[0011] In one embodiment, the auxiliary light-emitting elements are provided in a plurality, and the plurality of auxiliary light-emitting elements may be arranged to be spaced apart from each other along the second direction.

[0012] In one embodiment, the plurality of light-emitting elements may be arranged at equal intervals along the first direction.

[0013] In one embodiment, the plurality of light-emitting elements may be arranged in a grid shape.

[0014] One embodiment of the present invention discloses a display device comprising a display area and a non-display area, comprising: a substrate; a plurality of light-emitting elements disposed on the substrate so as to be spaced apart from each other along a first direction and a second direction intersecting the first direction; and a sealing portion disposed on the plurality of light-emitting elements; wherein the display area includes a plurality of first display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are spaced apart from each other along the second direction; and a plurality of second display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are disposed between two of the plurality of first display areas that are adjacent to each other; and wherein the sealing portion includes a plurality of first sealing portions that overlap with the plurality of first display areas; and a plurality of second sealing portions that overlap with the plurality of second display areas; wherein at least one of the plurality of first sealing portions has a modulus greater than that of at least one of the plurality of second sealing portions.

[0015] In one embodiment, the substrate comprises a plurality of first substrate portions overlapping with the plurality of first display areas; and a plurality of second substrate portions overlapping with the plurality of second display areas; and each of the plurality of first substrate portions may comprise a plurality of first-1 substrate portions overlapping with the plurality of light-emitting elements; and a plurality of first-2 substrate portions disposed between the plurality of first-1 substrate portions.

[0016] In one embodiment, at least one of the plurality of first- and second substrate portions may have a modulus greater than at least one of the plurality of second substrate portions.

[0017] In one embodiment, at least one of the plurality of first-2 substrate portions may have the same modulus as at least one of the plurality of first-1 substrate portions.

[0018] In one embodiment, the plurality of light-emitting elements may include: a plurality of first light-emitting elements arranged in the same row and electrically connected to a first signal line; and a plurality of second light-emitting elements arranged in the same row as the first light-emitting elements and electrically connected to a second signal line.

[0019] In one embodiment, the apparatus further includes an auxiliary light-emitting element positioned between two adjacent light-emitting elements among the plurality of light-emitting elements, wherein the auxiliary light-emitting element operates when the substrate is stretched in a first direction and can be turned off when the substrate is contracted in a first direction.

[0020] In one embodiment, the auxiliary light-emitting element may be placed in at least one of the plurality of second display areas.

[0021] In one embodiment, the auxiliary light-emitting elements are provided in a plurality, and the plurality of auxiliary light-emitting elements may be arranged to be spaced apart from each other along the second direction.

[0022] In one embodiment, the plurality of light-emitting elements may be arranged at equal intervals along the first direction.

[0023] In one embodiment, the plurality of light-emitting elements may be arranged in a grid shape.

[0024] An embodiment of the present invention discloses an electronic device comprising a display panel including a display area and a non-display area, wherein the display panel comprises: a substrate; and a plurality of light-emitting elements disposed on the substrate such that they are spaced apart from each other along a first direction and a second direction intersecting the first direction; wherein the display area comprises a plurality of first display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are spaced apart from each other along the second direction; and a plurality of second display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are disposed between two of the plurality of first display areas that are adjacent to each other; wherein the substrate comprises a plurality of first substrate portions that overlap with the plurality of first display areas; and a plurality of second substrate portions that overlap with the plurality of second display areas; wherein at least one of the plurality of first substrate portions has a modulus greater than at least one of the plurality of second substrate portions.

[0025] Other aspects, features, and advantages other than those described above will become clear from the following drawings, claims, and detailed description of the invention.

[0026] According to some embodiments of the present invention, a display device that implements an image of excellent quality with improved elasticity and an electronic device including the same can be provided.

[0027] The aforementioned effects are exemplary, and the effects of the present invention are not limited to those described above.

[0028] FIG. 1a is a schematic perspective view of a display device according to one embodiment of the present invention.

[0029] FIG. 1b is a block diagram schematically illustrating a display device according to one embodiment of the present invention.

[0030] FIG. 2 is a schematic perspective view of a display panel according to one embodiment of the present invention.

[0031] FIGS. 3A and FIGS. 3B are perspective views showing the display panel of FIG. 2 extended in a first direction.

[0032] FIG. 3c is a perspective view showing the display panel of FIG. 1 extended in a second direction.

[0033] FIG. 3d is a perspective view showing the display panel of FIG. 1 extended in the first direction and the second direction.

[0034] FIG. 3e is a perspective view showing the display panel of FIG. 1 extended in a third direction.

[0035] FIG. 4 is a schematic plan view of a display panel according to one embodiment of the present invention.

[0036] FIG. 5 is a plan view schematically showing the arrangement of pixels of a display panel according to one embodiment of the present invention.

[0037] FIG. 6 is a cross-sectional view schematically showing a part of a display panel according to one embodiment of the present invention.

[0038] FIGS. 7a to 7c are each equivalent circuit diagrams of pixels of a display panel according to an embodiment of the present invention.

[0039] FIGS. 8a to 8d are cross-sectional views schematically illustrating a light-emitting element of a display panel according to one embodiment of the present invention.

[0040] FIG. 9a is a schematic plan view of a display panel according to one embodiment of the present invention.

[0041] FIG. 9b is a schematic plan view of a display panel according to one embodiment of the present invention.

[0042] FIGS. 10 and FIGS. 11 are cross-sectional views schematically showing a portion of a display panel according to one embodiment of the present invention.

[0043] FIG. 12 is a schematic plan view of a display panel according to one embodiment of the present invention.

[0044] FIGS. 13 and FIGS. 14 are schematic plan views of a display panel according to one embodiment of the present invention.

[0045] FIG. 15 is a schematic plan view of a display panel according to one embodiment of the present invention.

[0046] FIG. 16 is a schematic plan view of a display panel according to one embodiment of the present invention.

[0047] FIGS. 17a to 17g are schematic perspective views illustrating embodiments of an electronic device including a display panel according to one embodiment of the present invention.

[0048] The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms.

[0049] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0050] In the following embodiments, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component.

[0051] In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0052] In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added.

[0053] In the following embodiments, when a part such as a film, region, or component is described as being on or above another part, it includes not only cases where it is directly on top of another part, but also cases where another film, region, or component is interposed in between.

[0054] In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated.

[0055] In the following embodiments, the x-axis, y-axis, and z-axis are not limited to three axes in an orthogonal coordinate system and can be interpreted in a broader sense that includes them. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but they may also refer to different directions that are not orthogonal to each other.

[0056] Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description.

[0057] In this specification, "on a plane" means a plane viewed from a direction perpendicular to the substrate (100, see FIG. 4). That is, "A and B spaced apart from each other on a plane" means "A and B spaced apart from each other when viewed from a direction perpendicular to the substrate (100, see FIG. 4)."

[0058] In this specification, "on a cross-section" means a plane cut in a direction perpendicular to the substrate (100, see FIG. 4). That is, "A and B spaced apart from each other on a plane" means "A and B spaced apart from each other on a plane cut in a direction perpendicular to the substrate (100, see FIG. 4)."

[0059] FIG. 1a is a schematic perspective view of a display device (1) according to one embodiment of the present invention, and FIG. 1b is a schematic block diagram of a display device (1) according to one embodiment of the present invention.

[0060] Referring to FIG. 1a and FIG. 1b, a display device (1) having a display panel (10) according to one embodiment of the present invention is a device for displaying video or still images, and can be used as a display screen for various products such as televisions, laptops, monitors, billboards, and the Internet of Things (IOT), as well as portable electronic devices such as mobile phones, smartphones, tablet personal computers, mobile communication terminals, electronic notebooks, e-books, PMPs (portable multimedia players), navigation systems, and UMPCs (Ultra Mobile PCs). A display device (1) according to one embodiment can be used in wearable devices such as smart watches, watch phones, glasses-type displays, and head-mounted displays (HMDs). A display device (1) according to one embodiment can be used as a CID (Center Information Display) placed on the instrument panel of a vehicle, the center fascia or dashboard of a vehicle, a room mirror display replacing the side mirror of a vehicle, an entertainment device for the rear seat of a vehicle, or a display placed on the back of the front seat.

[0061] FIG. 1a illustrates a display device (1) according to one embodiment being used as a smartphone. The display device (1) may include a display panel (10) and a lower cover (90) disposed below the display panel (10). The display device (1) may include a cover window covering the upper surface of the display panel (10).

[0062] The lower cover (90) forms the exterior of the display device (1) and may have an opening that exposes a portion of the display panel (10) on the front surface. The lower cover (90) may be assembled with the display panel (10) in a shape where the side corresponding to the display panel (10) is open. The lower cover (90) forms the exterior of the lower surface of the display device (1), and a display circuit board, components, a main circuit board, a battery, a driver, etc. may be placed between the display panel (10) and the lower cover (90). The lower cover (90) may include plastic, metal, or both plastic and metal.

[0063] The display device (1) may include a main processor (510), a wireless communication unit (520), an input unit (530), a sensor unit (540), an output unit (550), an interface unit (560), a memory (570), and / or a power supply unit (580).

[0064] The main processor (510) can control all functions of the display device (1). For example, the main processor (510) can output digital video data to a data driver through a display circuit board so that the display panel (10) displays an image. The main processor (510) can receive detection data from a touch sensor driver. The main processor (510) can determine whether a user touches based on the detection data and execute an action corresponding to the user's direct touch or proximity touch. The main processor (510) may be an application processor, a central processing unit, or a system chip made of an integrated circuit.

[0065] The camera device (531) processes image frames, such as still images or video, obtained by an image sensor in camera mode and outputs them to the main processor (510). The camera device (531) may include at least one of a camera sensor (e.g., CCD, CMOS, etc.), a photo sensor (or image sensor), and a laser sensor. The camera device (531) may be connected to an image sensor and process an image input to the image sensor.

[0066] The wireless communication unit (520) may include at least one of a broadcast reception module (521), a mobile communication module (522), a wireless internet module (523), a short-range communication module (524), and a location information module (525).

[0067] The broadcast receiving module (521) receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel.

[0068] A mobile communication module (522) transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network built according to technical standards or communication methods for mobile communication (e.g., GSM (Global System for Mobile communication), CDMA (Code Division Multi Access), CDMA2000 (Code Division Multi Access 2000), EV-DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), etc.). The wireless signals may include various forms of data such as voice call signals, video call call signals, or text / multimedia message transmission and reception.

[0069] The wireless internet module (523) refers to a module for wireless internet access. The wireless internet module (523) may be configured to transmit and receive wireless signals in a communication network according to wireless internet technologies. Examples of wireless internet technologies include WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), etc.

[0070] The short-range communication module (524) is for short-range communication and can support short-range communication by using at least one of Bluetooth, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies. The short-range communication module (524) can support wireless communication between the display device (1) and a wireless communication system, between the display device (1) and another electronic device, or between the display device (1) and a network where another electronic device (or an external server) is located, through a short-range wireless communication network. The short-range wireless communication network may be a short-range wireless personal area network. Other electronic devices may be wearable devices capable of exchanging data with (or interoperable with) the display device (1).

[0071] The location information module (525) is a module for obtaining the location (or current location) of the display device (1) and may include a GPS (Global Positioning System) module or a WiFi (Wireless Fidelity) module.

[0072] The input unit (530) may include a video input unit such as a camera device (531) for inputting a video signal, an audio input unit such as a microphone (532) for inputting an audio signal, and an input device (533) for receiving information from a user.

[0073] The camera device (531) processes image frames, such as still images or video, obtained by an image sensor in video call mode or shooting mode. The processed image frames may be displayed on a display panel (10) or stored in memory (570).

[0074] The microphone (532) processes an external acoustic signal into electrical voice data. The processed voice data can be utilized in various ways depending on the function (or application running) being performed on the display device (1).

[0075] The main processor (510) can control the operation of the display device (1) to correspond to information input through the input device (533). The input device (533) may include mechanical input means or touch input means, such as a button, dome switch, jog wheel, jog switch, etc., located on the rear or side of the display device (1). The touch input means may be formed by a touchscreen layer of the display panel (10).

[0076] The sensor unit (540) may include one or more sensors that sense at least one of information within the display device (1), surrounding environment information surrounding the display device (1), and user information, and generate a corresponding sensing signal. Based on these sensing signals, the main processor (510) may control the operation or function of the display device (1), or perform data processing, functions, or operations related to an application installed on the display device (1). The sensor unit (540) may include at least one of a proximity sensor, an illumination sensor, an acceleration sensor, a magnetic sensor, a gravity sensor (G-sensor), a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor (IR sensor: infrared sensor), a fingerprint sensor, an ultrasonic sensor, an optical sensor, a battery gauge, an environmental sensor (e.g., a barometer, a hygrometer, a thermometer, a radiation detection sensor, a heat detection sensor, a gas detection sensor, etc.), and a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.).

[0077] The output unit (550) is for generating output related to sight, hearing, or touch, and may include at least one of a display panel (10), an acoustic output unit (551), a haptic module (552), and a light output unit (553).

[0078] The display panel (10) displays (outputs) information processed by the display device (1). For example, the display panel (10) can display information on the execution screen of an application running on the display device (1), or UI (User Interface) and GUI (Graphic User Interface) information based on the execution screen information. The display panel (10) may include a display layer that displays an image and a touchscreen layer that detects touch input from a user. As a result, the display panel (10) can function as one of the input devices (533) that provide an input interface between the display device (1) and the user, and at the same time, as one of the output units (550) that provide an output interface between the display device (1) and the user.

[0079] The sound output unit (551) can output sound data received from the wireless communication unit (520) or stored in the memory (570) in signal reception, call mode or recording mode, voice recognition mode, broadcast reception mode, etc. The sound output unit (551) may also output sound signals related to functions performed by the display device (1) (e.g., call signal reception sound, message reception sound, etc.). The sound output unit (551) may include a receiver and a speaker. At least one of the receiver and the speaker may be a sound generating device attached to the lower part of the display panel (10) to vibrate the display panel (10) and output sound. The sound generating device may be a piezoelectric element or a piezoelectric actuator that contracts and expands according to an electrical signal, or an exciter that generates magnetic force using a voice coil to vibrate the display panel (10).

[0080] The haptic module (552) generates various tactile effects that the user can feel. The haptic module (552) can provide vibration to the user as a tactile effect. The haptic module (552) can not only transmit tactile effects through direct contact, but can also be implemented so that the user can feel tactile effects through the sense of touch of fingers or arms.

[0081] The light output unit (553) outputs a signal to indicate the occurrence of an event using light from a light source. Examples of events occurring in the display device (1) may include receiving a message, receiving a call signal, a missed call, an alarm, a schedule notification, receiving an email, receiving information through an application, etc. The signal output by the light output unit (553) is implemented as the display device (1) emits single-color or multiple-color light toward the front or rear. The signal output may be terminated when the display device (1) detects the user's confirmation of the event.

[0082] The interface section (560) serves as a passage for various types of external devices connected to the display device (1). The interface section (560) may include at least one of a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, and an earphone port. The display device (1) can perform appropriate control related to the connected external device in response to the connection of an external device to the interface section (560).

[0083] The memory (570) stores data that supports various functions of the display device (1). The memory (570) can store a number of applications running on the display device (1), data for the operation of the display device (1), and instructions. At least some of the applications can be downloaded from an external server via wireless communication. The memory (570) can store applications for the operation of the main processor (5100) and can temporarily store input / output data, such as phonebooks, messages, still images, videos, etc. Additionally, the memory (570) can store haptic data for various patterns of vibration provided to the haptic module (552) and acoustic data regarding various sounds provided to the acoustic output unit (551). The memory (570) may include at least one type of storage medium among flash memory type, hard disk type, SSD type (Solid State Disk type), SSD type (Silicon Disk Drive type), multimedia card micro type, card type memory (e.g., SD or XD memory, etc.), RAM (random access memory; RAM), SRAM (static random access memory), ROM (read-only memory; ROM), EEPROM (electrically erasable programmable read-only memory), PROM (programmable read-only memory), magnetic memory, magnetic disk, and optical disk.

[0084] The power supply unit (580), under the control of the main processor (5100), receives external power and internal power and supplies power to each component included in the display device (1). The power supply unit (580) may include a battery. Additionally, the power supply unit (580) is provided with a connection port, and the connection port may be configured as an example of an interface unit (560) to which an external charger that supplies power for charging the battery is electrically connected. Alternatively, the power supply unit (580) may be configured to charge the battery wirelessly without using the connection port.

[0085] FIG. 2 is a schematic perspective view of a display panel (10) according to an embodiment of the present invention. FIG. 3a and FIG. 3b are perspective views showing the display panel (10) of FIG. 2 extended in a first direction. FIG. 3c is a perspective view showing the display panel (10) of FIG. 1 extended in a second direction. FIG. 3d is a perspective view showing the display panel (10) of FIG. 1 extended in both the first and second directions. FIG. 3e is a perspective view showing the display panel (10) of FIG. 1 extended in a third direction.

[0086] Referring to FIG. 2, the display panel (10) may include a display area (DA) and a non-display area (NDA). The display area (DA) may include a plurality of pixels. The display panel (10) may provide a predetermined image using light emitted from a plurality of pixels. The non-display area (NDA) may be placed outside the display area (DA). The non-display area (NDA) may completely surround the display area (DA).

[0087] The display panel (10) can be extended or shortened in various directions. The display panel (10) can be extended in a first direction (e.g., x direction and / or -x direction) by an external force applied by an external object or a user. In one embodiment, as shown in FIGS. 3a and 3b, the display area (DA) and / or non-display area (NDA) of the display panel (10) can be extended in a first direction (e.g., x direction and / or -x direction). For example, as shown in FIG. 3a, it can be extended along the x direction and -x direction, or as shown in FIG. 3b, it can be extended along the x direction while one side of the display panel (10) remains fixed.

[0088] The display panel (10) can be extended in a second direction (e.g., the y direction and / or the -y direction) by an external force applied by an external object or a user. In one embodiment, as shown in FIG. 3c, the display area (DA) and / or non-display area (NDA) of the display panel (10) can be extended in the y direction and the -y direction. In another embodiment, one side of the display panel (10) can be extended in the y direction or the -y direction while remaining fixed.

[0089] The display panel (10) can be extended in multiple directions, such as a first direction (e.g., x direction and / or -x direction) and a second direction (e.g., y direction and / or -y direction) by an external force applied by an external object or a part of a person's body. As shown in FIG. 3d, the display area (DA) and / or non-display area (NDA) of the display panel (10) can be extended in the ±x direction and ±y direction.

[0090] The display panel (10) can be extended in a third direction (e.g., z direction or -z direction) by an external force applied by an external object or a part of a person's body. In one embodiment, FIG. 3e illustrates a part of the display panel (10), such as a part of the display area (DA), protruding in the z direction. In another embodiment, a part of the display panel (10), such as a part of the display area (DA), may protrude along the z direction (or be sunken along the -z direction).

[0091] FIGS. 3a to 3e illustrate a display device (1) extended in a first direction, a second direction, and / or a third direction, but the present invention is not limited thereto. In another embodiment, the display panel (10) may be deformed into various irregular shapes, such as having two or more axes, being bent or twisted.

[0092] FIG. 4 is a schematic plan view of a display panel (10) according to one embodiment of the present invention.

[0093] Referring to FIG. 4, the display panel (10) may include a display area (DA) and a non-display area (NDA) surrounding the display area (DA). Pixels (P) are arranged in the display area (DA) of the substrate (100). Each pixel (P) can display an image using light emitted from a light-emitting element. Each light-emitting element can emit, for example, red, green, or blue light.

[0094] The display area (DA) may be symmetrical with respect to a first center line (CL1) extending in a first direction and a second center line (CL2) extending in a second direction. That is, the intersection point of the first center line (CL1) and the second center line (CL2) may be located at the center of the display area (DA). Although FIG. 4 illustrates the planar shape of the display area (DA) as being rectangular, this is merely an example and the shape of the display area (DA) is not limited to this.

[0095] Each light-emitting element may be electrically connected to a pixel circuit, and each pixel circuit may include transistors and storage capacitors. Each pixel circuit may be electrically connected to peripheral circuits and peripheral wiring located in a non-display area (NDA). Peripheral circuits located in the non-display area (NDA) may include a gate driving circuit (GDC) and a terminal section (PAD). Peripheral wiring may include a driving voltage supply wiring (W11), a common voltage supply wiring (W13), and a fan-out wiring (FW).

[0096] The gate driving circuit (GDC) may include drivers for providing an electrical signal to the gate electrode of each of the transistors electrically connected to the light-emitting elements. Specifically, the gate driving circuit (GDC) may apply a scan signal to each of the pixel circuits corresponding to the pixels (P) through the gate line (GL).

[0097] The gate driving circuit (GDC) may include a first gate driving circuit (GDC1) and a second gate driving circuit (GDC2) positioned on both sides (e.g., two opposite sides) of the display panel (10) with the display area (DA) in between. The second gate driving circuit (GDC2) may be located on the opposite side of the first gate driving circuit (GDC1) with the display area (DA) in between and may be approximately parallel to the first gate driving circuit (GDC1). Some of the pixel circuits may be electrically connected to the first gate driving circuit (GDC1), and the rest may be electrically connected to the second gate driving circuit (GDC2). In some embodiments, the second gate driving circuit (GDC2) may be omitted.

[0098] A terminal portion (PAD) may be disposed on one side of the substrate (100). The terminal portion (PAD) is exposed without being covered by an insulating layer and is connected to a display circuit board (30). A display driving portion (32) may be disposed on the display circuit board (30). The display driving portion (32) may generate a control signal to be transmitted to a first gate driving circuit (GDC1) and a second gate driving circuit (GDC2). The display driving portion (32) generates a data signal, and the generated data signal may be transmitted to the pixel circuits of pixels (P) through a fan-out wiring (FW) and a data line (DL) connected to the fan-out wiring (FW).

[0099] The display driving unit (32) can supply a first power supply voltage (VDD, FIG. 7a) to the driving voltage supply wire (W11) and a second power supply voltage (VSS, FIG. 7a) to the common voltage supply wire (W13). The first power supply voltage (VDD, FIG. 7a) is applied to the pixel circuit of the pixel (P) through the driving voltage line (PL) connected to the driving voltage supply wire (W11), and the second power supply voltage (VSS, FIG. 7a) is connected to the common voltage supply wire (W13) and can be applied to the opposing electrode of the light-emitting element. The driving voltage supply wire (W11) may be provided extending along the x-direction from the lower side of the display area (DA). The common voltage supply wire (W13) may have a loop shape with one side open, so as to partially surround the display area (DA).

[0100] FIG. 5 is a plan view schematically showing the arrangement of pixels of a display panel (10) according to an embodiment of the present invention. Specifically, FIG. 5 is an enlarged view of area A of FIG. 4.

[0101] Referring to FIG. 5, a plurality of pixels (PXr, PXg, PXb) may be arranged in a display area (DA) of a display panel (10). The display area (DA) may include a pixel area (11) and a connecting area (12) outside the pixel area (11). A red pixel (PXr), a green pixel (PXg), and a blue pixel (PXb) may be arranged in the pixel area (11). The red pixel (PXr), the green pixel (PXg), and the blue pixel (PXb) may constitute a single pixel unit (PU). Pixel units (PUs) may be repeatedly arranged in the display area (DA).

[0102] Signal lines electrically connected to adjacent pixels may be arranged in the connection area (12). The connection area (12) may be stretched relatively more than the pixel area (11) when the display panel (10) is stretched. In one embodiment, the connection lines arranged in the connection area (12) may include a material having excellent elasticity and electrical properties simultaneously. For example, the connection lines arranged in the connection area (12) may include liquid metal, etc. The pixel areas (11) may be arranged at predetermined intervals along a first direction (e.g., x-direction) and a second direction (e.g., y-direction).

[0103] FIG. 6 is a cross-sectional view schematically showing a part of a display panel (10) according to one embodiment of the present invention.

[0104] Referring to FIG. 6, the display area (DA) may include a pixel area (11) and a connection area (12), and the connection area (12) may be an area connecting pixel areas (11) that are arranged adjacent to each other. The pixel area (11) may include a light-emitting element (LED) and a circuit for driving the light-emitting element (LED), such as a pixel circuit (PC). The connection area (12) may include a connection wire (WL) included in a signal line that supplies a signal to each of the pixel circuits (PC).

[0105] A pixel area (11) and a connection area (12) can be formed on a substrate (400). In other words, the substrate (400) can have each of the pixel area (11) and the connection area (12) defined. A light-emitting element (LED) and a pixel circuit (PC) can be placed on the pixel area (11) of the substrate (400), and a connection wire (WL) can be placed on the connection area (12) of the substrate (400).

[0106] The substrate (400) can absorb stress that may occur during the stretching of the display panel (10). The substrate (400) may include an elastomer. For example, the substrate (400) is thermoplastic polyurethane, silicone, thermoplastic rubbers, elastolefin, thermoplastic olefin, polyamide, polyether block amide, synthetic polyisoprene, polybutadiene, chloroprene rubber, butyl rubber, styrene-butadiene, epichlorohydrin rubber, polyacrylic rubber, silicone rubber, fluorosilicone rubber, fluoroelastomers, ethylene-vinyl acetate, PDMS (polydimethylsiloxane), and It may include at least one of the ecoflex.

[0107] A display layer (200) may be disposed on the pixel area (11) of the substrate (400). The display layer (200) may include an inorganic insulating layer (IIL), a pixel circuit (PC), an organic insulating layer (OIL), and a light-emitting element (LED). A pixel circuit (PC) may be disposed on the substrate (400), and an inorganic insulating layer (IIL) may be disposed between the electrodes included in the pixel circuit (PC). An organic insulating layer (OIL) may be disposed on the inorganic insulating layer (IIL) to cover the pixel circuit (PC).

[0108] A light-emitting element (LED) may be disposed on a substrate (400). The light-emitting element (LED) may be disposed on an organic insulating layer (OIL) and may be electrically connected to a corresponding pixel circuit (PC). 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). The inorganic insulating layer (IIL) may include an inorganic insulating material such as silicon nitride and / or silicon oxide, and the organic insulating layer (OIL) may include an organic insulating material such as polyimide.

[0109] In one embodiment, a pixel unit (PU, FIG. 5) may be disposed on a pixel area (11). As previously described, the pixel unit (PU, FIG. 5) may include a red pixel (PXr, FIG. 5), a green pixel (PXg, FIG. 5), and a blue pixel (PXb, FIG. 5). The red pixel (PXr, FIG. 5a) may include a first sub-lighting element (LEDs1), the green pixel (PXg, FIG. 5a) may include a second sub-lighting element (LEDs2), and the blue pixel (PXb) may include a third sub-lighting element (LEDs3). For example, the first sub-lighting element (LEDs1) may emit red light, the second sub-lighting element (LEDs2) may emit green light, and the third sub-lighting element (LEDs3) may emit blue light. In some embodiments, the light-emitting element (LED) may emit white light.

[0110] A connecting wire (WL) may be disposed on the connecting region (12) of the substrate (400). In one embodiment, as shown in FIG. 6, the connecting wire (WL) may be disposed on the substrate (400). In another embodiment, the connecting wire (WL) may be disposed within the substrate (400). The connecting wire (WL) may include a material having both excellent elasticity and electrical properties. In one embodiment, the connecting wires (WL) disposed on the connecting region (12) may include liquid metal. In another embodiment, the connecting wires (WL) may include metal nanostructures and elastic polymers. In yet another embodiment, the connecting wires (WL) may include a conductive composite material including an elastomer.

[0111] An organic insulating layer (OIL) may be disposed on the connection area (12) of the substrate (400). In one embodiment, the organic insulating layer (OIL) disposed on the connection area (12) may be a portion of the organic insulating layer (OIL) disposed on the pixel area (11) that extends to the connection area (12). When the display panel (10) is stretched, the connection area (12) may undergo relatively more deformation compared to the pixel area (11). Accordingly, unlike the pixel area (11), a layer containing an inorganic insulating material that is prone to cracking may not exist in the connection area (12).

[0112] In one embodiment, a charging unit (300) may be disposed on the light-emitting element (LED). The charging unit (300) may be disposed in both the pixel area (11) and the connection area (12). That is, the charging unit (300) may be disposed to cover the entire display area (DA). The charging unit (300) may cover the light-emitting element (LED) and the connection wiring (WL). The charging unit (300) may absorb stress that may occur when the display panel (10) is stretched. Specifically, the charging unit (300) may serve to prevent stress that may occur when the display panel (10) is stretched from being transmitted to the light-emitting element (LED) and the pixel circuit (PC).

[0113] The filling portion (300) may include an elastic polymer. The filler (300) may include at least one of thermoplastic polyurethane, silicone, thermoplastic rubbers, elastolefin, thermoplastic olefin, polyamide, polyether block amide, synthetic polyisoprene, polybutadiene, chloroprene rubber, butyl rubber, styrene-butadiene, epichlorohydrin rubber, polyacrylic rubber, silicone rubber, fluorosilicone rubber, and fluoroelastomers, ethylene-vinyl acetate, and PDMS (polydimethylsiloxane). There is. In one embodiment, the charging portion (300) may include the same material as the substrate (400). However, it is not limited thereto, and the charging portion (300) may include a different material from the substrate (400).

[0114] A sealing section (500) may be disposed on the charging section (300). The sealing section (500) is disposed on a plurality of light-emitting elements (LEDs), and the charging section (300) may be disposed between the plurality of light-emitting elements (LEDs) and the sealing section (500). That is, the charging section (300) can fill the space between the plurality of light-emitting elements (LEDs) and the sealing section (500). The sealing section (500) can block external moisture, air, etc.

[0115] The encapsulation portion (500) may be provided with a stretchable flexible material. For example, the encapsulation portion (500) may include a polymer resin such as polyethersulfone, polyarylate, polyetherimide, polyethylene naphthalate, polyethylene terephthalate, polyphenylene sulfide, polyimide, polycarbonate, cellulose triacetate, or cellulose acetate propionate. In one embodiment, the encapsulation portion (500) may be a single layer comprising the aforementioned polymer resin. In another embodiment, the encapsulation portion (500) may be a multilayer structure comprising a base layer comprising the aforementioned polymer resin and a barrier layer comprising an inorganic insulating material. The encapsulation portion (500) comprising the polymer resin may have flexible, rollable, and bendable properties.

[0116] FIGS. 7a to 7c are equivalent circuit diagrams of a pixel (P, FIG. 4) of a display panel (10, FIG. 4) according to one embodiment of the present invention.

[0117] Referring to FIG. 7a, a light-emitting element (LED) corresponding to a pixel is electrically connected to a pixel circuit (PC), and the pixel circuit (PC) may include a first transistor (T1), a second transistor (T2), and a storage capacitor (Cst). The pixel circuit (PC) may be electrically connected to signal lines and voltage lines. The signal lines may include a gate line (GL, FIG. 4), such as a scan signal line (GWL), and a data line (DL), and the voltage lines may include a first voltage line (VDDL). In this case, the first voltage line (VDDL) may be connected to a driving voltage supply line (W11, FIG. 4), and the second voltage line (VSSL) may be connected to a common voltage supply line (W13, FIG. 4) and configured to supply a second power supply voltage (VSS).

[0118] The second transistor (T2) can be electrically connected to the scan signal line (GWL) and the data line (DL). The scan signal line (GWL) can provide a scan signal (GW) to the gate electrode of the second transistor (T2). The second transistor (T2) can transmit a data signal (Dm) input from the data line (DL) to the first transistor (T1) according to the scan signal (GW) input from the scan signal line (GWL).

[0119] 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).

[0120] The first transistor (T1) is a driving transistor capable of controlling the driving current flowing through the light-emitting element (LED). The first transistor (T1) can be connected to the first voltage line (VDDL) and the storage capacitor (Cst). The first transistor (T1) can control the driving current flowing from the first voltage line (VDDL) to the light-emitting element (LED) in correspondence with the voltage value stored in the storage capacitor (Cst). The light-emitting element (LED) can emit light having a predetermined brightness by the driving current. The first electrode of the light-emitting element (LED) is electrically connected to the first transistor (T1), and the second electrode can be electrically connected to the second voltage line (VSSL) that supplies the second power supply voltage (VSS).

[0121] FIG. 7a illustrates a pixel circuit (PC) comprising two transistors and one storage capacitor, but in other embodiments, the pixel circuit (PC) may comprise three or more transistors.

[0122] Referring to FIG. 7b, the pixel 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).

[0123] The pixel circuit (PC) is electrically connected to signal lines and voltage lines. The signal lines may include gate lines (GL, FIG. 3), such as scan signal lines (GWL), bypass control lines (GBL), initialization control lines (GIL), and light emission control lines (EML), and data lines (DL). The voltage lines may include first and second initialization voltage lines (VIL1, VIL2) and a first voltage line (VDDL). In this case, the first voltage line (VDDL) may be connected to a driving voltage supply line (W11, FIG. 4), and the second voltage line (VSSL) may be connected to a common voltage supply line (W13, FIG. 4) and configured to supply a second power supply voltage (VSS).

[0124] The first voltage line (VDDL) can transmit the first power supply voltage (VDD) to the first transistor (T1). The first initialization voltage line (VIL1) can transmit the first initialization voltage (Vint) that initializes the first transistor (T1) to the pixel circuit (PC). The second initialization voltage line (VIL2) can transmit the second initialization voltage (Vaint) that initializes the first electrode of the light-emitting element (LED) to the pixel circuit (PC).

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

[0126] The second transistor (T2) is a data write transistor and is electrically connected to the scan signal line (GWL) 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 scan signal (GW) received through the scan signal line (GWL) and performs a switching operation to transmit the data signal (Dm) transmitted to the data line (DL) to the first node (N1).

[0127] The third transistor (T3) is electrically connected to the scan signal line (GWL) and is electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The third transistor (T3) is turned on according to the scan signal (GW) received through the scan signal line (GWL) and can diode-connect the first transistor (T1).

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

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

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

[0131] The storage capacitor (Cst) includes a first electrode (CE1) and a second electrode (CE2). The first electrode (CE1) is electrically connected to the gate electrode of the first transistor (T1), and the second electrode (CE2) is electrically connected to the first voltage line (VDDL). The storage capacitor (Cst) can maintain the voltage applied to the gate electrode of the first transistor (T1) by storing and maintaining a voltage corresponding to the difference between the voltages of the first voltage line (VDDL) and the gate electrode of the first transistor (T1).

[0132] Referring to FIG. 7c, the pixel 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).

[0133] The pixel circuit (PC) is electrically connected to signal lines and voltage lines. The signal lines may include gate lines such as a scan signal line (GWL), a bypass control line (GBL), an initialization control line (GIL), and an emission control line (EML), and data lines (DL). The voltage lines may include first and second initialization voltage lines (VIL1, VIL2), a hold voltage line (VSL), and a first voltage line (VDDL). In this case, the first voltage line (VDDL) may be connected to a driving voltage supply line (W11, FIG. 4), and the second voltage line (VSSL) may be connected to a common voltage supply line (W13, FIG. 4).

[0134] The first voltage line (VDDL) can transmit the first power supply voltage (VDD) to the first transistor (T1). The first initialization voltage line (VIL1) can transmit the first initialization voltage (Vint) that initializes the first transistor (T1) to the pixel circuit (PC). The second initialization voltage line (VIL2) can transmit the second initialization voltage (Vaint) that initializes the first electrode of the light-emitting element (LED) to the pixel circuit (PC). The holding voltage line (VSL) can provide the holding voltage (VSUS) to the second electrode (CE2) of the second node (N2), such as the storage capacitor (Cst), during the initialization period and the data writing period.

[0135] The first transistor (T1) can be electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and the eighth transistor (T8), and can be electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The first transistor (T1) acts as a driving transistor and can receive a data signal (Dm) according to the switching operation of the second transistor (T2) and supply driving current to the light-emitting element (LED).

[0136] The second transistor (T2) is electrically connected to the scan signal line (GWL) and the data line (DL), and is electrically connected to the first voltage line (VDDL) via the fifth transistor (T5) and the eighth transistor (T8). The second transistor (T2) is turned on according to the scan signal (GW) received through the scan signal line (GWL) and performs a switching operation to transmit the data signal (Dm) transmitted through the data line (DL) to the first node (N1).

[0137] The third transistor (T3) is electrically connected to the scan signal line (GWL) and is electrically connected to the light-emitting element (LED) via the sixth transistor (T6). The third transistor (T3) is turned on according to the scan signal (GW) received through the scan signal line (GWL) and connects the first transistor (T1) to the diode, thereby compensating for the threshold voltage of the first transistor (T1).

[0138] The fourth transistor (T4) is electrically connected to the initialization control line (GIL) and the first initialization voltage line (VIL1), and is turned on according to the initialization control signal (GI) received through the initialization control line (GIL) to transmit the first initialization voltage (Vint) from the first initialization voltage line (VIL1) to the gate electrode of the first transistor (T1) to initialize the voltage of the gate electrode of the first transistor (T1). The initialization control signal (GI) may correspond to a scan signal of another pixel circuit placed in the previous row of the corresponding pixel circuit (PC).

[0139] The fifth transistor (T5), the sixth transistor (T6), and the eighth transistor (T8) are electrically connected to the light emission control line (EML) and are simultaneously turned on according to the light emission control signal (EM) received through the light emission control line (EML) to form a current path so that driving current can flow from the first voltage line (VDDL) toward the light-emitting element (LED).

[0140] The seventh transistor (T7) is a second initialization transistor and can be electrically connected to the bypass control line (GBL), the second initialization voltage line (VIL2), and the sixth transistor (T6). The seventh transistor (T7) is turned on according to the bypass control signal (GB) received through the bypass control line (GBL) and transmits the second initialization voltage (Vaint) from the second initialization voltage line (VIL2) to the first electrode of the light-emitting element (LED) to initialize the first electrode of the light-emitting element (LED).

[0141] The ninth transistor (T9) can be electrically connected to the bypass control line (GBL), the second electrode (CE2) of the storage capacitor (Cst), and the holding voltage line (VSL). The ninth transistor (T9) is turned on according to the bypass control signal (GB) received through the bypass control line (GBL), and can transmit a holding voltage (VSUS) to the second node (N2), such as the second electrode (CE2) of the storage capacitor (Cst), during the initialization period and the data writing period.

[0142] The eighth transistor (T8) and the ninth transistor (T9) can each be electrically connected to the second node (N2), for example, the second electrode (CE2) of the storage capacitor (Cst). In some embodiments, the eighth transistor (T8) may be turned off and the ninth transistor (T9) may be turned on during the initialization period and the data writing period, and the eighth transistor (T8) may be turned on and the ninth transistor (T9) may be turned off during the light emission period. Since the second node (N2) receives the holding voltage (VSUS) during the initialization period and the data writing period, the uniformity of the brightness of the display device (e.g., LRU, Long Range Uniformity) due to the voltage drop of the first voltage line (VDDL) can be improved.

[0143] 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).

[0144] The auxiliary capacitor (Ca) can be electrically connected to the sixth transistor (T6), the holding voltage line (VSL), and the first electrode of the light-emitting element (LED). By storing and maintaining a voltage corresponding to the voltage difference between the first electrode of the light-emitting element (LED) and the holding voltage line (VSL) while the seventh transistor (T7) and the ninth transistor (T9) are turned on, the auxiliary capacitor (Ca) can prevent the problem of the black brightness rising when the sixth transistor (T6) is turned off.

[0145] FIGS. 8a to 8d are cross-sectional views schematically showing a light-emitting element (LED) of a display panel (10, FIG. 4) according to one embodiment of the present invention.

[0146] Referring to FIG. 8a, the light-emitting element (LED) may include an inorganic light-emitting element containing an inorganic material. The light-emitting element (LED) may include a first semiconductor layer (231), a second semiconductor layer (232), an intermediate layer (233) between the first semiconductor layer (231) and the second semiconductor layer (232), a first electrode (235) electrically connected to the first semiconductor layer (231), and a second electrode (238) electrically connected to the second semiconductor layer (232). The first electrode (235) and the second electrode (238) of the light-emitting element (LED) may each be electrically connected to a first electrode pad (241) and a second electrode pad (242) disposed on the same layer. The second electrode pad (242) may be a part of the second voltage line (VSSL, FIG. 7a) or a conductive layer electrically connected to the second voltage line (VSSL, FIG. 7a).

[0147] In some embodiments, the first semiconductor layer (231) may include a p-type semiconductor layer. The p-type semiconductor layer may be selected from semiconductor materials having the compositional formula InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), such as GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and may be doped with p-type dopants such as Mg, Zn, Ca, Sr, Ba, etc.

[0148] The second semiconductor layer (232) may include, for example, an n-type semiconductor layer. The n-type semiconductor layer may be selected from semiconductor materials having the composition formula InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), for example, GaN, AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, etc., and may be doped with n-type dopants such as Si, Ge, and Sn.

[0149] The intermediate layer (233) is a region where electrons and holes recombine, and as electrons and holes recombine, they transition to a lower energy level and can generate light having a corresponding wavelength. The intermediate layer (233) can be formed by including a semiconductor material having, for example, the composition formula InxAlyGa1-x-yN (0≤x≤1, 0≤y≤1, 0≤x+y≤1), and can be formed as a single quantum well structure or a multi-quantum well (MQW) structure. Additionally, it may include a quantum wire structure or a quantum dot structure.

[0150] FIG. 8a illustrates that the first semiconductor layer (231) includes a p-type semiconductor layer and the second semiconductor layer (232) includes an n-type semiconductor layer, but the present invention is not limited thereto. In another embodiment, the first semiconductor layer (231) may include an n-type semiconductor layer and the second semiconductor layer (232) may include a p-type semiconductor layer.

[0151] FIG. 8a illustrates that the first electrode pad (241) and the second electrode pad (242) are disposed on the same layer, but the present invention is not limited thereto. Referring to FIG. 8b, the first electrode pad (241) and the second electrode pad (242) may be disposed on different layers. For example, a bank layer (230) having an opening that overlaps with at least a portion of the first electrode pad (241) may be disposed on the first electrode pad (241), and the second electrode pad (242) may be disposed on the upper surface of the bank layer (230). The structure of the light-emitting element (LED) shown in FIG. 8b is the same as previously described with reference to FIG. 8a.

[0152] In another embodiment, as shown in FIG. 8c, the second electrode pad (242) may be positioned on both sides centered on the first electrode pad (241) in a cross-sectional view. The bank layer (230) includes an opening that overlaps with at least a portion of the first electrode pad (241), and the second electrode pad (242) may be positioned around the opening of the bank layer (230). In some embodiments, the second electrode pad (242) may have a closed-loop shape that completely surrounds the opening of the bank layer (230) and / or the first electrode pad (241) in a planar view. The structure of the light-emitting element (LED) shown in FIG. 8c is the same as previously described with reference to FIG. 8a.

[0153] FIGS. 8a to 8c illustrate the first electrode (235) and the second electrode (238) of the light-emitting element (LED) facing in the same direction (e.g., downward direction, -z direction), but the present invention is not limited thereto. As shown in FIG. 8d, the first electrode (235) and the second electrode (238) of the light-emitting element (LED) may face in opposite directions.

[0154] The bank layer (230) includes an opening that exposes at least a portion of the first electrode pad (241), and the thickness of the bank layer (230) may be substantially the same as the thickness of the light-emitting element (LED). The opening of the bank layer (230) may be filled with a filling material (FM), and the second electrode pad (242) may be disposed on the upper surface of the bank layer (230) so as to be electrically connected (e.g., in contact) with the second electrode (238) of the light-emitting element (LED). The filling material may be an organic material having insulating properties.

[0155] FIG. 9a is a schematic plan view showing a display panel (10) according to one embodiment of the present invention.

[0156] Specifically, FIG. 9a is an enlarged view of area B of FIG. 4.

[0157] Referring to FIG. 9a, a plurality of light-emitting elements (LEDs) may be arranged spaced apart from each other along a first direction (e.g., x direction and / or -x direction) and a second direction (e.g., y direction and / or -y direction). The plurality of light-emitting elements (LEDs) may be arranged in a grid pattern. On a plane, the plurality of light-emitting elements (LEDs) may be arranged along a plurality of rows and a plurality of columns. The plurality of light-emitting elements (LEDs) may be arranged symmetrically with respect to a first centerline (CL1) and a second centerline (CL2). The plurality of light-emitting elements (LEDs) may each be arranged spaced apart from the first centerline (CL1) and the second centerline (CL2). For example, the plurality of light-emitting elements (LEDs) may be arranged at equal intervals along the first direction (e.g., x direction and / or -x direction). For example, the plurality of light-emitting elements (LEDs) may be arranged at equal intervals along the second direction (e.g., y direction and / or -y direction). However, this is for illustrative purposes only, and the arrangement of multiple light-emitting elements (LEDs) is not limited to this.

[0158] The display area (DA) can be divided into a plurality of first display areas (DA1) and a plurality of second display areas (DA2). In other words, the display area (DA) may include a plurality of first display areas (DA1) and a plurality of second display areas (DA2).

[0159] A plurality of first display areas (DA1) each extend in a first direction (e.g., x direction and / or -x direction) and may overlap with a plurality of light-emitting elements (LEDs) arranged along the first direction (e.g., x direction and / or -x direction). A plurality of first display areas (DA1) may be arranged spaced apart from each other along a second direction (e.g., y direction and / or -y direction). The length of a plurality of first display areas (DA1) in the second direction (e.g., y direction and / or -y direction) may be equal to the length of a plurality of light-emitting elements (LEDs) in the second direction (e.g., y direction and / or -y direction). For example, a plurality of first display areas (DA1) may be arranged at equal intervals along the second direction (e.g., y direction and / or -y direction).

[0160] A plurality of second display areas (DA2) each extend in a first direction (e.g., x direction and / or -x direction) and may overlap with a plurality of light-emitting elements (LEDs) arranged along the first direction (e.g., x direction and / or -x direction). A plurality of second display areas (DA2) may be arranged spaced apart from each other along a second direction (e.g., y direction and / or -y direction). The length of the plurality of second display areas (DA2) in the second direction (e.g., y direction and / or -y direction) may be longer than the length of the plurality of light-emitting elements (LEDs) in the second direction (e.g., y direction and / or -y direction). For example, a plurality of second display areas (DA2) may be arranged at equal intervals along the second direction (e.g., y direction and / or -y direction).

[0161] A plurality of second display areas (DA2) may each be placed between two adjacent first display areas (DA1). On a plane, one second display area (DA2) may be placed between two adjacent first display areas (DA1). A plurality of first display areas (DA1) and a plurality of second display areas (DA2) may be alternately placed along a second direction (e.g., the y direction and / or the -y direction).

[0162] A plurality of first display areas (DA1) can each be divided into a plurality of first-1 display areas (DA1-1) and a plurality of first-2 display areas (DA1-2). In other words, a plurality of first display areas (DA1) can each include a plurality of first-1 display areas (DA1-1) and a plurality of first-2 display areas (DA1-2).

[0163] A plurality of first-1 display areas (DA1-1) may overlap with a plurality of light-emitting elements (LEDs). The length of a plurality of first-1 display areas (DA1-1) in a second direction (e.g., y direction and / or -y direction) may be equal to the length of a plurality of light-emitting elements (LEDs) in a second direction (e.g., y direction and / or -y direction). A plurality of first-2 display areas (DA1-2) may be arranged between a plurality of first-1 display areas (DA1-1). The length of a plurality of first-2 display areas (DA1-2) in a first direction (e.g., x direction and / or -x direction) may be equal to the distance between two light-emitting elements (LEDs) arranged adjacent to each other along the first direction (e.g., x direction and / or -x direction). A plurality of first-1 display areas (DA1-1) and a plurality of first-2 display areas (DA1-2) may be alternately arranged along a first direction (e.g., x direction and / or -x direction).

[0164] FIG. 9b is a schematic plan view of a display panel (10) according to one embodiment of the present invention.

[0165] Specifically, FIG. 9b is an enlarged view of area B of FIG. 4.

[0166] Referring to FIG. 9b, a plurality of light-emitting elements (LEDs) may include a plurality of first light-emitting elements (LED1) and a plurality of second light-emitting elements (LED2) arranged in the same column. For example, a plurality of light-emitting elements (LEDs) arranged in the (j)th column may be divided into a plurality of first light-emitting elements (LED1) and a plurality of second light-emitting elements (LED2).

[0167] A plurality of first light-emitting elements (LED1) can be electrically connected to a first signal line (SL1). That is, a plurality of first light-emitting elements (LED1) can be electrically connected to the same signal line. Additionally, a plurality of second light-emitting elements (LED2) can be electrically connected to a second signal line (SL2). That is, a plurality of second light-emitting elements (LED2) can be electrically connected to the same signal line. The first signal line (SL1) and the second signal line (SL2) may be different signal lines. That is, a plurality of first light-emitting elements (LED1) and a plurality of second light-emitting elements (LED2) may receive different signals. For example, the first signal line (SL1) and the second signal line (SL2) may each include at least one of a data line (DL, see FIG. 7a) and a scan signal line (GWL, see FIG. 7a).

[0168] For example, a plurality of first light-emitting elements (LED1) and a plurality of second light-emitting elements (LED2) may be arranged alternately along a second direction (e.g., y direction and / or -y direction). For example, any one of the plurality of first light-emitting elements (LED1) may be placed in the (i)th row, and any one of the plurality of second light-emitting elements (LED2) may be placed in the (i+1)th row.

[0169] For the sake of convenience of explanation, multiple light-emitting elements (LEDs) placed in the (j)th column have been described as an example, but the same applies to multiple light-emitting elements (LEDs) placed in other columns. For example, the connection relationship of the aforementioned signal lines can be applied in the same way to multiple light-emitting elements (LEDs) placed in the (j+1)th column.

[0170] FIGS. 10 and FIGS. 11 are cross-sectional views schematically showing a part of a display panel (10) according to one embodiment of the present invention.

[0171] Specifically, FIG. 10 is a cross-sectional view along the X-X' line of FIG. 9a, and FIG. 11 is a cross-sectional view along the XI-XI' line of FIG. 9a.

[0172] In FIGS. 10 and FIGS. 11, the same reference numerals as in FIG. 6 refer to the same components, so a redundant description thereof is omitted.

[0173] Referring to FIG. 6 and FIG. 9a through FIG. 11, the substrate (400, FIG. 6) may be divided into a plurality of first substrate portions (410) and a plurality of second substrate portions (420). In other words, the substrate (400, FIG. 6) may include a plurality of first substrate portions (410) and a plurality of second substrate portions (420). A plurality of first substrate portions (410) may overlap with a plurality of first display areas (DA1). A plurality of second substrate portions (420) may overlap with a plurality of second display areas (DA2). A plurality of first substrate portions (410) and a plurality of second substrate portions (420) may be alternately arranged along a second direction (e.g., the y direction and / or the -y direction).

[0174] Each of the plurality of first substrate portions (410) may be divided into a plurality of first-1 substrate portions (411) and a plurality of first-2 substrate portions (412). In other words, each of the plurality of first substrate portions (410) may include a plurality of first-1 substrate portions (411) and a plurality of first-2 substrate portions (412). A plurality of first-1 substrate portions (411) may overlap with a plurality of first-1 display areas (DA1-1). A plurality of first-1 substrate portions (411) may overlap with a plurality of light-emitting elements (LEDs). A plurality of first-2 substrate portions (412) may overlap with a plurality of first-2 display areas (DA1-2). A plurality of first-2 substrate portions (412) may be arranged between a plurality of first-1 substrate portions (411). A plurality of first-1 substrate portions (411) and a plurality of first-2 substrate portions (412) may be alternately arranged along a first direction (e.g., x direction and / or -x direction).

[0175] The bag portion (500) may be divided into a plurality of first bag portions (510) and a plurality of second bag portions (520). In other words, the bag portion (500) may include a plurality of first bag portions (510) and a plurality of second bag portions (520). A plurality of first bag portions (510) may overlap with a plurality of first display areas (DA1). A plurality of second bag portions (520) may overlap with a plurality of second display areas (DA2). A plurality of first bag portions (510) and a plurality of second bag portions (520) may be alternately arranged along a second direction (e.g., the y direction and / or the -y direction).

[0176] Each of the plurality of first bag portions (510) may be divided into a plurality of first-1 bag portions (511) and a plurality of first-2 bag portions (512). In other words, each of the plurality of first bag portions (510) may include a plurality of first-1 bag portions (511) and a plurality of first-2 bag portions (512). A plurality of first-1 bag portions (511) may overlap with a plurality of first-1 display areas (DA1-1). A plurality of first-1 bag portions (511) may overlap with a plurality of light-emitting elements (LEDs). A plurality of first-2 bag portions (512) may overlap with a plurality of first-2 display areas (DA1-2). A plurality of first-2 bag portions (512) may be placed between a plurality of first-1 bag portions (511). A plurality of first-1 bag portions (511) and a plurality of first-2 bag portions (512) may be alternately arranged along a first direction (e.g., x direction and / or -x direction).

[0177] The first substrate portion (410) can overlap with the first packaging portion (510). Specifically, the first-1 substrate portion (411) overlaps with the first-1 packaging portion (511), and the first-2 substrate portion (412) can overlap with the first-2 packaging portion (512). Additionally, the second substrate portion (420) can overlap with the second packaging portion (520).

[0178] In one embodiment, in a display panel (10), the modulus of the first display area (DA1) may be greater than the modulus of the second display area (DA2).

[0179] For example, at least one of the plurality of first substrate portions (410) may have a larger modulus than at least one of the plurality of second substrate portions (420). For example, the modulus of each of the plurality of first substrate portions (410) may be larger than the modulus of each of the plurality of second substrate portions (420). The modulus of the substrate (400) can be controlled by the curing process of the substrate (400).

[0180] For example, at least one of the plurality of first bag portions (510) may have a greater modulus than at least one of the plurality of second bag portions (520). For example, the modulus of each of the plurality of first bag portions (510) may be greater than the modulus of each of the plurality of second bag portions (520). The modulus of the bag portion (500) can be controlled by the curing process of the bag portion (500).

[0181] For example, at least one of the plurality of first- and second substrate portions (412) may have a larger modulus than at least one of the plurality of second substrate portions (420). For example, the modulus of each of the plurality of first- and second substrate portions (412) may be larger than the modulus of each of the plurality of second substrate portions (420).

[0182] For example, at least one of the plurality of first- and second bag portions (512) may have the same modulus as at least one of the plurality of second bag portions (520). For example, the modulus of each of the plurality of first- and second bag portions (512) may be greater than the modulus of each of the plurality of second bag portions (520).

[0183] For example, at least one of the plurality of first-2 substrate portions (412) may have the same modulus as at least one of the plurality of first-1 substrate portions (411). For example, the modulus of each of the plurality of first-1 substrate portions (411) and the modulus of each of the plurality of first-2 substrate portions (412) may be the same as each other.

[0184] For example, at least one of the plurality of first-2 bag portions (512) may have the same modulus as at least one of the plurality of first-1 bag portions (511). For example, the modulus of each of the plurality of first-1 bag portions (511) and the modulus of each of the plurality of first-2 bag portions (512) may be the same as each other.

[0185] FIG. 12 is a schematic plan view of a display panel (10) according to one embodiment of the present invention.

[0186] Specifically, FIG. 9a is an enlarged view of area B of FIG. 4 before the display panel (10) is stretched, and FIG. 12 is an enlarged view of area B of FIG. 4 after the display panel (10) is stretched.

[0187] Referring to FIG. 9a and FIG. 12, as the display panel (10) is extended in a first direction (e.g., x direction and / or -x direction), the distance between a plurality of light-emitting elements (LEDs) in the first direction (e.g., x direction and / or -x direction) may increase.

[0188] The elongation rate of the display panel (10) may be greatest at the center. That is, when the display panel (10) is in an elongated state, the closer it is to the second center line (CL2) among the plurality of light-emitting elements (LEDs), the greater the distance between the plurality of light-emitting elements (LEDs).

[0189] In one embodiment, the modulus in the first display area (DA1) may be greater than the modulus in the second display area (DA2). In one embodiment, the modulus of the first-second display area (DA1-2) may be greater than the modulus of the second display area (DA2). In such a structure, even if the display panel (10) is stretched, the elongation rate of the first display area (DA1) may be smaller than the elongation rate of the second display area (DA2). Therefore, during the stretching process of the display panel (10), the degradation of resolution due to the uneven positional change of a plurality of light-emitting elements (LEDs) can be reduced.

[0190] Referring to FIG. 9b and FIG. 12, as the display panel (10) is stretched in a first direction (e.g., x direction and / or -x direction), the number of rows of a plurality of light-emitting elements (LEDs) may increase. For example, as shown in FIG. 9b, before the display panel (10) is stretched, a plurality of light-emitting elements (LEDs) may be arranged in six rows. As shown in FIG. 12, after the display panel (10) is stretched, a plurality of light-emitting elements (LEDs) may be arranged in twelve rows. That is, after the display panel (10) is stretched, a plurality of first light-emitting elements (LED1) and a plurality of second light-emitting elements (LED2) may be arranged in different rows.

[0191] In such a structure, the first signal line (SL1) and the second signal line (SL2) can transmit signals to multiple light-emitting elements (LEDs) arranged in different rows. Even if the display panel (10) is stretched, the deformation of the arrangement of the multiple light-emitting elements (LEDs) can be compensated for as different signal lines are connected to the multiple light-emitting elements (LEDs) arranged in different rows.

[0192] FIGS. 13 and FIGS. 14 are schematic plan views showing a display panel (10) according to one embodiment of the present invention.

[0193] Specifically, FIG. 13 is an enlarged view of area B of FIG. 4 before the display panel (10) is stretched, and FIG. 14 is an enlarged view of area B of FIG. 4 after the display panel (10) is stretched.

[0194] Referring to FIGS. 13 and 14, the display panel (10) may include an auxiliary light-emitting element (SLED).

[0195] The auxiliary light-emitting element (SLED) may be provided with the same structure as the light-emitting element (LED) described in FIGS. 5 and 6. The auxiliary light-emitting element (SLED) may be electrically connected to a corresponding pixel circuit. The auxiliary light-emitting element (SLED) may include three sub-light-emitting elements (LEDs) that emit light of different colors.

[0196] An auxiliary light-emitting element (SLED) may be placed between two adjacent light-emitting elements (LEDs) among a plurality of light-emitting elements (LEDs). An auxiliary light-emitting element (SLED) may be placed in at least one of a plurality of second display areas (DA2). An auxiliary light-emitting element (SLED) may be placed to overlap with a second center line (CL2).

[0197] For example, a plurality of auxiliary light-emitting elements (SLEDs) may be provided. A plurality of auxiliary light-emitting elements (SLEDs) may be placed in each of a plurality of second display areas (DA2). A plurality of auxiliary light-emitting elements (SLEDs) may be placed spaced apart from each other along a second direction (e.g., y direction and / or -y direction) so as to overlap with a second center line (CL2).

[0198] The auxiliary light-emitting element (SLED) is activated when stretched in a first direction (e.g., x direction and / or -x direction) and can be turned off when contracted in a first direction (e.g., x direction and / or -x direction). For example, as illustrated in FIG. 13, the auxiliary light-emitting element (SLED) can be turned off before the display panel (10) is stretched. For example, as illustrated in FIG. 14, the auxiliary light-emitting element (SLED) can be activated after the display panel (10) is stretched.

[0199] In this structure, before the display panel (10) illustrated in FIG. 13 is stretched, a plurality of light-emitting elements (LEDs) are arranged at relatively equal intervals, and an auxiliary light-emitting element (SLED) can be turned off. Additionally, after the display panel (10) illustrated in FIG. 14 is stretched, an auxiliary light-emitting element (SLED) placed at the center where the spacing between the plurality of light-emitting elements (LEDs) is largest can be activated. Therefore, the resolution of the display panel (10) can be uniform both before and after the display panel (10) is stretched.

[0200] FIG. 15 is a schematic plan view of a display panel (10) according to one embodiment of the present invention.

[0201] Specifically, FIG. 15 is an enlarged view of area B of FIG. 4.

[0202] Referring to FIG. 15, the display area (DA) may include a plurality of first display areas (DA1) and a plurality of second display areas (DA2). Each of the plurality of first display areas (DA1) may include a plurality of first-1 display areas (DA1-1) and a plurality of first-2 display areas (DA1-2).

[0203] A plurality of first display areas (DA1) each extend in a first direction (e.g., x direction and / or -x direction) and may overlap with a plurality of light-emitting elements (LEDs) arranged along the first direction (e.g., x direction and / or -x direction). A plurality of first display areas (DA1) may be arranged spaced apart from each other along a second direction (e.g., y direction and / or -y direction). A plurality of second display areas (DA2) each extend in a first direction (e.g., x direction and / or -x direction) and may overlap with a plurality of light-emitting elements (LEDs) arranged along the first direction (e.g., x direction and / or -x direction). A plurality of second display areas (DA2) may be arranged spaced apart from each other along a second direction (e.g., y direction and / or -y direction).

[0204] As illustrated in FIG. 15, a plurality of light-emitting elements (LEDs) forming a single row along a first direction (e.g., x direction and / or -x direction) may be arranged in a first display area (DA1). Additionally, a plurality of light-emitting elements (LEDs) forming two rows along a first direction (e.g., x direction and / or -x direction) may be arranged in a second display area (DA2).

[0205] However, this is exemplary, and the arrangement of the first display area (DA1) and the second display area (DA2) is not limited thereto. For example, a plurality of light-emitting elements (LEDs) forming two rows along a first direction (e.g., x direction and / or -x direction) may be arranged in one first display area (DA1). Additionally, a plurality of light-emitting elements (LEDs) forming one row along a first direction (e.g., x direction and / or -x direction) may be arranged in one second display area (DA2). Alternatively, for example, a plurality of light-emitting elements (LEDs) forming multiple rows along a first direction (e.g., x direction and / or -x direction) may be arranged in each of the first display area (DA1) and the second display area (DA2).

[0206] FIG. 16 is a schematic plan view of a display panel (10) according to one embodiment of the present invention.

[0207] Specifically, Fig. 16 is an enlarged view of area B of Fig. 4.

[0208] The display area (DA) can be divided into a plurality of first display areas (DA1), a plurality of second display areas (DA2), and a plurality of third display areas (DA3). In other words, the display area (DA) may include a plurality of first display areas (DA1), a plurality of second display areas (DA2), and a plurality of third display areas (DA3).

[0209] A plurality of first display areas (DA1) each extend in a first direction (e.g., x direction and / or -x direction) and may overlap with a plurality of light-emitting elements (LEDs) arranged along the first direction (e.g., x direction and / or -x direction). A plurality of first display areas (DA1) may be arranged spaced apart from each other along a second direction (e.g., y direction and / or -y direction). The length of a plurality of first display areas (DA1) in the second direction (e.g., y direction and / or -y direction) may be equal to the length of a plurality of light-emitting elements (LEDs) in the second direction (e.g., y direction and / or -y direction). For example, a plurality of first display areas (DA1) may be arranged at equal intervals along the second direction (e.g., y direction and / or -y direction).

[0210] A plurality of third display areas (DA3) each extend in a second direction (e.g., y direction and / or -y direction) and may overlap with a plurality of light-emitting elements (LEDs) arranged along the second direction (e.g., y direction and / or -y direction). A plurality of third display areas (DA3) may be arranged spaced apart from each other along a first direction (e.g., x direction and / or -x direction). The length of a plurality of third display areas (DA3) in the first direction (e.g., x direction and / or -x direction) may be equal to the length of a plurality of light-emitting elements (LEDs) in the first direction (e.g., x direction and / or -x direction). For example, a plurality of third display areas (DA3) may be arranged at equal intervals along the first direction (e.g., x direction and / or -x direction).

[0211] A plurality of second display areas (DA2) may be arranged between a plurality of first display areas (DA1) and a plurality of third display areas (DA3). Each of the plurality of second display areas (DA2) may be surrounded by a plurality of first display areas (DA1) and a plurality of third display areas (DA3). The plurality of second display areas (DA2) may be arranged to be spaced apart from each other along a first direction (e.g., x direction and / or -x direction) and a second direction (e.g., y direction and / or -y direction). The length of the plurality of second display areas (DA2) in the first direction (e.g., x direction and / or -x direction) may be longer than the length of the plurality of light-emitting elements (LEDs) in the first direction (e.g., x direction and / or -x direction). The length of a plurality of second display areas (DA2) in a second direction (e.g., y direction and / or -y direction) may be longer than the length of a plurality of light-emitting elements (LEDs) in a second direction (e.g., y direction and / or -y direction). For example, a plurality of second display areas (DA2) may be arranged at equal intervals along a first direction (e.g., x direction and / or -x direction) and a second direction (e.g., y direction and / or -y direction).

[0212] A plurality of second display areas (DA2) may each be placed between two adjacent first display areas (DA1). On a plane, one second display area (DA2) may be placed between two adjacent first display areas (DA1). A plurality of first display areas (DA1) and a plurality of second display areas (DA2) may be alternately placed along a second direction (e.g., the y direction and / or the -y direction).

[0213] A plurality of second display areas (DA2) may each be positioned between two adjacent third display areas (DA3). On a plane, one second display area (DA2) may be positioned between two adjacent third display areas (DA3). A plurality of third display areas (DA3) and a plurality of second display areas (DA2) may be positioned alternately along a first direction (e.g., x direction and / or -x direction).

[0214] A plurality of first display areas (DA1) can each be divided into a plurality of first-1 display areas (DA1-1) and a plurality of first-2 display areas (DA1-2). In other words, a plurality of first display areas (DA1) can each include a plurality of first-1 display areas (DA1-1) and a plurality of first-2 display areas (DA1-2).

[0215] A plurality of first-1 display areas (DA1-1) may overlap with a plurality of light-emitting elements (LEDs). The length of a plurality of first-1 display areas (DA1-1) in a second direction (e.g., y direction and / or -y direction) may be equal to the length of a plurality of light-emitting elements (LEDs) in a second direction (e.g., y direction and / or -y direction). A plurality of first-2 display areas (DA1-2) may be arranged between a plurality of first-1 display areas (DA1-1). The length of a plurality of first-2 display areas (DA1-2) in a first direction (e.g., x direction and / or -x direction) may be equal to the distance between two light-emitting elements (LEDs) arranged adjacent to each other along the first direction (e.g., x direction and / or -x direction). A plurality of first-1 display areas (DA1-1) and a plurality of first-2 display areas (DA1-2) may be alternately arranged along a first direction (e.g., x direction and / or -x direction).

[0216] A plurality of third display areas (DA3) can each be divided into a plurality of third-1 display areas (DA3-1) and a plurality of third-2 display areas (DA3-2). In other words, a plurality of third display areas (DA3) can each include a plurality of third-1 display areas (DA3-1) and a plurality of third-2 display areas (DA3-2).

[0217] A plurality of 3-1 display areas (DA3-1) may overlap with a plurality of light-emitting elements (LEDs). The length of a plurality of 3-1 display areas (DA3-1) in a first direction (e.g., x direction and / or -x direction) may be equal to the length of a plurality of light-emitting elements (LEDs) in a first direction (e.g., x direction and / or -x direction). A plurality of 3-2 display areas (DA3-2) may be placed between a plurality of 3-1 display areas (DA3-1). The length of a plurality of 3-2 display areas (DA3-2) in a second direction (e.g., y direction and / or -y direction) may be equal to the distance between two light-emitting elements (LEDs) placed adjacent to each other along the second direction (e.g., y direction and / or -y direction). A plurality of third-1 display areas (DA3-1) and a plurality of third-2 display areas (DA3-2) may be alternately arranged along a second direction (e.g., y direction and / or -y direction).

[0218] A substrate (400, FIG. 6) may be divided into a plurality of first substrate portions (410, FIG. 10), a plurality of second substrate portions (420, FIG. 11), and a plurality of third substrate portions. In other words, the substrate (400, FIG. 6) may include a plurality of first substrate portions (410, FIG. 10), a plurality of second substrate portions (420, FIG. 11), and a plurality of third substrate portions. A plurality of first substrate portions (410, FIG. 10) may overlap with a plurality of first display areas (DA1). A plurality of second substrate portions (420, FIG. 11) may overlap with a plurality of second display areas (DA2). A plurality of third substrate portions may overlap with a plurality of third display areas (DA3).

[0219] Each of the plurality of first substrate portions (410, FIG. 10) may be divided into a plurality of first-1 substrate portions (411, FIG. 10) and a plurality of first-2 substrate portions (412, FIG. 10). In other words, each of the plurality of first substrate portions (410, FIG. 10) may include a plurality of first-1 substrate portions (411, FIG. 10) and a plurality of first-2 substrate portions (412, FIG. 10). The plurality of first-1 substrate portions (411, FIG. 10) may overlap with a plurality of first-1 display areas (DA1-1). The plurality of first-1 substrate portions (411, FIG. 10) may overlap with a plurality of light-emitting elements (LEDs). The plurality of first-2 substrate portions (412, FIG. 10) may overlap with a plurality of first-2 display areas (DA1-2). A plurality of first-2 substrate portions (412, FIG. 10) may be arranged between a plurality of first-1 substrate portions (411, FIG. 10). A plurality of first-1 substrate portions (411, FIG. 10) and a plurality of first-2 substrate portions (412, FIG. 10) may be arranged alternately along a first direction (e.g., x direction and / or -x direction).

[0220] Each of the plurality of third substrate portions may be divided into a plurality of third-1 substrate portions and a plurality of third-2 substrate portions. In other words, each of the plurality of third substrate portions may include a plurality of third-1 substrate portions and a plurality of third-2 substrate portions. A plurality of third-1 substrate portions may overlap with a plurality of third-1 display areas (DA3-1). A plurality of third-1 substrate portions may overlap with a plurality of light-emitting elements (LEDs). A plurality of third-2 substrate portions may overlap with a plurality of third-2 display areas (DA3-2). A plurality of third-2 substrate portions may be disposed between a plurality of third-1 substrate portions. A plurality of third-1 substrate portions and a plurality of third-2 substrate portions may be alternately disposed along a second direction (e.g., the y direction and / or the -y direction).

[0221] The bag portion (500, FIG. 6) may be divided into a plurality of first bag portions (510, FIG. 10), a plurality of second bag portions (520, FIG. 11), and a plurality of third bag portions. In other words, the bag portion (500, FIG. 6) may include a plurality of first bag portions (510, FIG. 10), a plurality of second bag portions (520, FIG. 11), and a plurality of third bag portions. A plurality of first bag portions (510, FIG. 10) may overlap with a plurality of first display areas (DA1). A plurality of second bag portions (520, FIG. 11) may overlap with a plurality of second display areas (DA2). A plurality of third bag portions may overlap with a plurality of third display areas (DA3).

[0222] Each of the plurality of first-bag portions (510, FIG. 10) may be divided into a plurality of first-1 bag portions (511, FIG. 10) and a plurality of first-2 bag portions (512, FIG. 10). In other words, each of the plurality of first-bag portions (510, FIG. 10) may include a plurality of first-1 bag portions (511, FIG. 10) and a plurality of first-2 bag portions (512, FIG. 10). The plurality of first-1 bag portions (511, FIG. 10) may overlap with a plurality of first-1 display areas (DA1-1). The plurality of first-1 bag portions (511, FIG. 10) may overlap with a plurality of light-emitting elements (LEDs). The plurality of first-2 bag portions (512, FIG. 10) may overlap with a plurality of first-2 display areas (DA1-2). A plurality of first-second bag portions (512, FIG. 10) may be arranged between a plurality of first-first bag portions (511, FIG. 10). A plurality of first-first bag portions (511, FIG. 10) and a plurality of first-second bag portions (512, FIG. 10) may be arranged alternately along a first direction (e.g., x direction and / or -x direction).

[0223] Each of the plurality of third-bag portions may be divided into a plurality of third-1 bag portions and a plurality of third-2 bag portions. In other words, each of the plurality of third-bag portions may include a plurality of third-1 bag portions and a plurality of third-2 bag portions. A plurality of third-1 bag portions may overlap with a plurality of third-1 display areas (DA3-1). A plurality of third-1 bag portions may overlap with a plurality of light-emitting elements (LEDs). A plurality of third-2 bag portions may overlap with a plurality of third-2 display areas (DA3-2). A plurality of third-2 bag portions may be placed between a plurality of third-1 bag portions. A plurality of third-1 bag portions and a plurality of third-2 bag portions may be alternately placed along a second direction (e.g., the y direction and / or the -y direction).

[0224] The first substrate portion (410, FIG. 10) can overlap with the first packaging portion (510, FIG. 10). Specifically, the first-1 substrate portion (411, FIG. 10) overlaps with the first-1 packaging portion (511, FIG. 10), and the first-2 substrate portion (412, FIG. 10) can overlap with the first-2 packaging portion (512, FIG. 10). Additionally, the second substrate portion (420, FIG. 11) can overlap with the second packaging portion (520, FIG. 11). The third substrate portion can overlap with the third packaging portion. Specifically, the third-1 substrate portion overlaps with the third-1 packaging portion, and the third-2 substrate portion can overlap with the third-2 packaging portion. In addition, the second substrate portion (420, FIG. 11) can overlap with the second encapsulation portion (520, FIG. 11).

[0225] In one embodiment, in a display panel (10), the modulus of each of the first display area (DA1) and the third display area (DA3) may be greater than the modulus of the second display area (DA2).

[0226] For example, at least one of the plurality of first substrate portions (410, FIG. 10) may have a larger modulus than at least one of the plurality of second substrate portions (420, FIG. 11). At least one of the plurality of third substrate portions may have a larger modulus than at least one of the plurality of second substrate portions (420, FIG. 11). For example, the modulus of each of the plurality of first substrate portions (410, FIG. 10) may be larger than the modulus of each of the plurality of second substrate portions (420, FIG. 11). The modulus of each of the plurality of third substrate portions may be larger than the modulus of each of the plurality of second substrate portions (420, FIG. 11).

[0227] For example, at least one of the plurality of first-2 substrate portions (412, FIG. 10) may have a larger modulus than at least one of the plurality of second substrate portions (420, FIG. 11). At least one of the plurality of third-2 substrate portions may have a larger modulus than at least one of the plurality of second substrate portions (420, FIG. 11). For example, the modulus of each of the plurality of first-1 substrate portions (411, FIG. 10) and the modulus of each of the plurality of first-2 substrate portions (412, FIG. 10) may be the same as each other. The modulus of each of the plurality of third-1 substrate portions and the modulus of each of the plurality of third-2 substrate portions may be the same as each other.

[0228] For example, at least one of the plurality of first bag portions (510, FIG. 10) may have a larger modulus than at least one of the plurality of second bag portions (520, FIG. 11). At least one of the plurality of third bag portions may have a larger modulus than at least one of the plurality of second bag portions (520, FIG. 11). For example, the modulus of each of the plurality of first bag portions (510, FIG. 10) may be larger than the modulus of each of the plurality of second bag portions (520, FIG. 11). The modulus of each of the plurality of third bag portions may be larger than the modulus of each of the plurality of second bag portions (520, FIG. 11).

[0229] For example, at least one of the plurality of first-2 bag portions (512, FIG. 10) may have a larger modulus than at least one of the plurality of second bag portions (520, FIG. 11). At least one of the plurality of third-2 bag portions may have a larger modulus than at least one of the plurality of second bag portions (520, FIG. 11). For example, the modulus of each of the plurality of first-1 bag portions (511, FIG. 10) and the modulus of each of the plurality of first-2 bag portions (512, FIG. 10) may be the same as each other. The modulus of each of the plurality of third-1 bag portions and the modulus of each of the plurality of third-2 bag portions may be the same as each other.

[0230] In such a structure, as the display panel (10) is simultaneously stretched in a first direction (e.g., x direction and / or -x direction) and a second direction (e.g., y direction and / or -y direction), the reduction in resolution due to uneven positional changes of a plurality of light-emitting elements (LEDs) can be reduced.

[0231] FIGS. 17a to 17g are schematic perspective views illustrating embodiments of an electronic device including a display panel according to one embodiment of the present invention.

[0232] Referring to FIG. 17a, a display panel according to one embodiment of the present invention can be utilized in a wearable electronic device (3100) that can be worn on a part of a user's body. The wearable electronic device (3100) may include a body part (3110) and a display part (3120) provided in the body part (3110). The display panel according to embodiments of the present invention can be used as the display part (3120) of the wearable electronic device (3100). As illustrated in FIG. 13a, the wearable electronic device (3100) may be modified. In one embodiment, it can be used as a smart watch or a smartphone depending on the user's choice.

[0233] FIG. 17b illustrates a medical electronic device (3200). In one embodiment, the medical electronic device (3200) may include a body part (3210) and a light-emitting part (3220). A display panel according to embodiments of the present invention may be used as the light-emitting part (3220) of the medical electronic device (3200). The light-emitting part (3220) may emit light of a specific wavelength band (e.g., infrared, visible light, etc.) to the patient's body. In one embodiment, the body part (3210) may have a stretchable fiber material and may have a structure that can be worn on the body of the user of the light-emitting part.

[0234] FIG. 17c illustrates an educational electronic device (3300). In one embodiment, the educational electronic device may include a display unit (3320) provided within a frame (3310). The display unit (3320) may utilize a display panel according to embodiments of the present invention. The display unit (3320) may provide images such as a sea with waves, a snow-covered mountain, or a volcano with flowing lava, wherein the display unit (3320) may extend in the height direction (e.g., z-direction) to reflect the height of the waves, mountain, or volcano. In some embodiments, a portion of the display unit (3320) may sequentially vary in height along the direction of the lava flow to show the movement of the lava in three dimensions. The educational electronic device (3300) may include a plurality of pins (or stroke units, 3330) arranged on the back of the display unit (3320) so that the display unit (3320) extends in the height direction. The pins (3330) can be implemented to move along a third direction (e.g., z direction or -z direction) so that the image displayed on the display unit (3320) has a three-dimensional height. FIG. 17c describes an educational electronic device (3300), but its use is not limited as long as it provides certain image information.

[0235] The electronic device illustrated in FIGS. 17a to 17c is described as having a variable shape, but the present invention is not limited thereto. As in the embodiments described below, the display panel according to the embodiments of the present invention can be used in an electronic device in which a portion capable of displaying an image (e.g., a screen) is fixed.

[0236] FIG. 17d illustrates a robot (3400) as another electronic device in one embodiment of the present invention. The robot (3400) can move or perceive objects using a camera unit (3440) and can display a predetermined image to a user through a display unit (3420, 3430). In some embodiments, the display panels according to one embodiment of the present invention can be extended in various directions as described above and can be assembled to a body frame having a hemispherical shape, and thus the robot (3400) may include a hemispherical display unit (3420, 3430).

[0237] FIG. 17e illustrates a vehicle display device (3500) as another electronic device in one embodiment of the present invention. The vehicle display device (3500) may include a cluster (3510), a Center Information Display (CID) (3520), and / or a passenger display (3530). Since the display panel according to the embodiment of the present invention can be extended in various directions, it can be used for the cluster (3510), the Center Information Display (CID) (3520), and / or the co-driver display (3530) without being constrained by the shape of the vehicle's internal frame.

[0238] FIG. 17e illustrates the cluster (3510), the Center Information Display (CID) (3520), and / or the co-driver display (3530) being separated, but the invention is not limited thereto. In another embodiment, two or more selected from the cluster (3510), the Center Information Display (CID) (3520), and the co-driver display (3530) may be connected as a single unit.

[0239] In some embodiments, the vehicle display device (3500) may include a button (3540) capable of displaying a predetermined image. Referring to the enlarged view of FIG. 17e, the hemispherical button (3540) may include an object (3542) that provides a sense of use of the button while moving in the z-direction or -z-direction, and a display device placed on the object (3542). In some embodiments, if the object (3542) has a three-dimensionally rounded surface, the display device may also have a three-dimensionally rounded surface.

[0240] FIG. 17f illustrates that an electronic device according to one embodiment of the present invention is an electronic device for advertising or display (3600). In some embodiments, the electronic device for advertising or display (3600) may be installed on a fixed structure (3610), such as a wall or a column. If the structure (3610) includes an uneven surface as shown in FIG. 17f, the electronic device for advertising or display (3600) may also be placed along the uneven surface of the structure (3610). In some embodiments, the electronic device for advertising or display (3600) may be installed on the structure (3610) using a heat-shrink film or the like.

[0241] FIG. 17g illustrates that an electronic device according to one embodiment of the present invention is a controller (3700). The controller (3700) may include an image-type button. For example, the controller (3700) may include first to third button areas (3720, 3730, 3740) in which a portion of the display portion (3710) protrudes in the z-direction or protrudes in the -z-direction (or is recessed in the z-direction). In some embodiments, the first and third button areas (3720, 3740) may protrude in the z-direction, and the second button area (3730) may protrude in the -z-direction (or be recessed in the z-direction).

[0242] "Bottom," "under," "lower," "below," "top," "upper," and / or similar spatial relative terms may be used for convenience of description and are intended to describe the relationship between one element or feature and another element(s) or feature(s) as illustrated in the drawings. Spatial relative terms include not only the directions illustrated in the drawings but also various directions in which the device is used, operated, and / or manufactured. For example, if the device illustrated in the drawings is inverted, the element described as "below another element or feature" is then located "above." Thus, in one or more embodiments, the term "below" may simultaneously include both vertical and vertical orientations. Additionally, the device may be rotated 90 degrees or positioned in other directions, and in such cases, the spatial relative terms used herein should be interpreted in accordance with such orientation.

[0243] As used herein, terms such as “substantially,” “approximately,” “about,” or similar terms are not terms indicating a degree but terms indicating an approximation, intended to account for the inherent deviation of a measured or calculated value that is recognizable by a person skilled in the art. Here, “substantially,” “approximately,” and “about” include the stated value and mean within an acceptable range of deviation of a specific value as determined by a person skilled in the art, taking into account errors related to the measurement (i.e., limitations of the measurement system). For example, “substantially,” “approximately,” and “about” may mean within one or more standard deviations, or within a range of ±30%, 20%, 10%, or 5% of the stated value.

[0244] All numerical ranges described herein are intended to include all sub-ranges of the same numerical precision that are included within said range. For example, the range “1.0 to 10.0” includes all sub-ranges (e.g., 2.4 to 7.6) with a minimum value of 1.0 or greater and a maximum value of 10.0 or less. The maximum numerical limit described herein is intended to include all numerical limits below that, and the minimum numerical limit described herein is intended to include all numerical limits above that. Accordingly, the applicant reserves the right to amend the specification and claims to explicitly describe any sub-range that is included within the ranges explicitly described herein.

[0245] The display device, electronic device / device, display device manufacturing device, or other related device / device or component according to the embodiments of this specification may be implemented through appropriate hardware, firmware (e.g., ASIC), software, or a combination of software, firmware, and hardware. For example, various components of the device may be formed on a single integrated circuit (IC) chip or on separate IC chips. Additionally, various components of the device may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or on a single substrate. Furthermore, various components of the device may be implemented as processes or threads executed on one or more processors to execute computer program instructions on one or more computing devices and to perform various functions described in this specification by interacting with other system components. These computer program instructions may be stored in memory within the computing device using a standard memory device such as RAM. Additionally, computer program instructions may be stored on other non-transitory computer-readable media such as CD-ROMs or flash drives. Furthermore, those skilled in the art may recognize that the functions of various computing devices may be integrated into a single computing device, or that the functions of a specific computing device may be distributed across one or more other computing devices, and this does not deviate from the scope of the embodiments of this specification.

[0246] As such, the present invention has been described with reference to an embodiment illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and variations of the embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

Claims

1. In a display device including a display area and a non-display area, Substrate; and A plurality of light-emitting elements disposed on the substrate such that they are spaced apart from each other along a first direction and a second direction intersecting the first direction; The above display area is, A plurality of first display areas extending in the first direction, overlapping with a plurality of light-emitting elements arranged along the first direction, and spaced apart from each other along the second direction; and It includes a plurality of second display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are arranged between two adjacent first display areas. The above substrate is, A plurality of first substrate portions overlapping with the plurality of first display areas above; and It includes a plurality of second substrate portions that overlap with the plurality of second display areas above, and A display device in which at least one of the plurality of first substrate portions has a modulus greater than at least one of the plurality of second substrate portions.

2. In Paragraph 1, It further includes a sealing portion disposed on the plurality of light-emitting elements; and The above-mentioned bag portion is, A plurality of first packaging portions overlapping with the plurality of first display areas above; and It includes a plurality of second bag portions that overlap with the plurality of second display areas above, and Each of the above plurality of first bag portions is, A plurality of first-1 encapsulation portions overlapping with the plurality of light-emitting elements above; and A display device comprising a plurality of first-2 bag portions disposed between the plurality of first-1 bag portions.

3. In Paragraph 2, A display device in which at least one of the plurality of first and second bag portions has a modulus greater than at least one of the plurality of second bag portions.

4. In Paragraph 3, A display device in which at least one of the plurality of first-1 bag portions has the same modulus as at least one of the plurality of first-2 bag portions.

5. In Paragraph 1, The above plurality of light-emitting elements are, A plurality of first light-emitting elements arranged in the same row and electrically connected to a first signal line; and An electronic device comprising: a plurality of second light-emitting elements arranged in the same row as the first light-emitting element and electrically connected to a second signal line.

6. In Paragraph 1, It further includes an auxiliary light-emitting element positioned between two adjacent light-emitting elements among the plurality of light-emitting elements. The above auxiliary light-emitting element is, A display device that operates when the substrate is stretched in a first direction and turns off when the substrate is contracted in a first direction.

7. In Paragraph 6, A display device wherein the above auxiliary light-emitting element is disposed in at least one of the plurality of second display areas.

8. In Paragraph 6, The above auxiliary light-emitting elements are provided in multiple numbers, and A display device in which the plurality of auxiliary light-emitting elements are arranged to be spaced apart from each other along the second direction.

9. In Paragraph 6, A display device in which the plurality of light-emitting elements are arranged at equal intervals along the first direction.

10. In Paragraph 1, A display device in which the above plurality of light-emitting elements are arranged in a grid shape.

11. In a display device including a display area and a non-display area, Substrate; A plurality of light-emitting elements disposed on the substrate such that they are spaced apart from each other along a first direction and a second direction intersecting the first direction; and It includes a sealing portion disposed on the plurality of light-emitting elements; and The above display area is, A plurality of first display areas extending in the first direction, overlapping with a plurality of light-emitting elements arranged along the first direction, and spaced apart from each other along the second direction; and It includes a plurality of second display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are arranged between two adjacent first display areas. The above-mentioned bag portion is, A plurality of first packaging portions overlapping with the plurality of first display areas above; and It includes a plurality of second bag portions that overlap with the plurality of second display areas above, and A display device in which at least one of the plurality of first bag portions has a modulus greater than at least one of the plurality of second bag portions.

12. In Paragraph 11, The above substrate is, A plurality of first substrate portions overlapping with the plurality of first display areas above; and It includes a plurality of second substrate portions that overlap with the plurality of second display areas above, and Each of the above plurality of first substrate portions is, A plurality of first-1 substrate portions overlapping with the plurality of light-emitting elements; and A display device comprising: a plurality of first-2 substrate portions disposed between the plurality of first-1 substrate portions.

13. In Paragraph 12, A display device in which at least one of the plurality of first and second substrate portions has a modulus greater than at least one of the plurality of second substrate portions.

14. In Paragraph 13, A display device in which at least one of the plurality of first-2 substrate portions has the same modulus as at least one of the plurality of first-1 substrate portions.

15. In Paragraph 11, The above plurality of light-emitting elements are, A plurality of first light-emitting elements arranged in the same row and electrically connected to a first signal line; and A display device comprising: a plurality of second light-emitting elements arranged in the same row as the first light-emitting element and electrically connected to a second signal line.

16. In Paragraph 11, It further includes an auxiliary light-emitting element positioned between two adjacent light-emitting elements among the plurality of light-emitting elements. The above auxiliary light-emitting element is, A display device that operates when the substrate is stretched in a first direction and turns off when the substrate is contracted in a first direction.

17. In Paragraph 16, A display device wherein the above auxiliary light-emitting element is disposed in at least one of the plurality of second display areas.

18. In Paragraph 16, The above auxiliary light-emitting elements are provided in multiple numbers, and A display device in which the plurality of auxiliary light-emitting elements are arranged to be spaced apart from each other along the second direction.

19. In Paragraph 16, A display device in which the plurality of light-emitting elements are arranged at equal intervals along the first direction.

20. In Paragraph 11, A display device in which the above plurality of light-emitting elements are arranged in a grid shape.

21. An electronic device comprising a flexible display panel including a display area and a non-display area, wherein The above display panel is, Substrate; and A plurality of light-emitting elements disposed on the substrate such that they are spaced apart from each other along a first direction and a second direction intersecting the first direction; The above display area is, A plurality of first display areas extending in the first direction, overlapping with a plurality of light-emitting elements arranged along the first direction, and spaced apart from each other along the second direction; and It includes a plurality of second display areas that extend in the first direction, overlap with a plurality of light-emitting elements arranged along the first direction, and are arranged between two adjacent first display areas. The above substrate is, A plurality of first substrate portions overlapping with the plurality of first display areas above; and It includes a plurality of second substrate portions that overlap with the plurality of second display areas above, and An electronic device in which at least one of the plurality of first substrate portions has a modulus greater than at least one of the plurality of second substrate portions.

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