Display device and method of manufacturing same

Abstract

The invention relates to a display device and a method of manufacturing the same. The display device includes: a display panel over a substrate and including a display area; a window layer over the display panel and including a window overlapping the display area and a black matrix adjacent to the window; a metal layer between the display panel and the substrate; a protection member overlapping the black matrix and covering a plurality of edges of the display panel, the plurality of edges of the display panel including a plurality of side edges and a plurality of corner edges connecting the plurality of side edges; and an impact mitigation member between at least one of the plurality of edges of the display panel and the protection member and adjacent to at least one of the plurality of corner edges of the display panel.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0155680 filed on November 10, 2023, in the Korean Intellectual Property Office, and Korean Patent Application No. 10-2023-0162765 filed on November 21, 2023, in the Korean Intellectual Property Office, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a display device and a method of manufacturing the display device. Background Art

[0004] Recently, as interest in information display increases, research and development of display devices are ongoing.

[0005] The above contents are merely intended to help understand the background technology of the technical idea of ​​the present disclosure, and therefore cannot be understood as contents corresponding to the related technology known to those skilled in the art in the technical field of the present disclosure. Summary of the invention

[0006] Embodiments of the present disclosure are directed to providing a display device having improved reliability.

[0007] According to one or more embodiments of the present disclosure, a display device includes: a display panel above a substrate and including a display area; a window layer above the display panel and including a window overlapping the display area and a black matrix adjacent to the window; a metal layer between the display panel and the substrate; a protective member overlapping the black matrix and covering multiple edges of the display panel, the multiple edges of the display panel including multiple side edges and multiple corner edges connecting the multiple side edges; and an impact mitigation member between at least one of the multiple edges of the display panel and the protective member and adjacent to at least one of the multiple corner edges of the display panel.

[0008] The impact mitigation member may include ink.

[0009] The ink may have an elastic modulus of about 100 MPa or more and about 1500 MPa or less.

[0010] The ink may include urethane resin, acrylic-based resin and / or vinyl resin.

[0011] The ink may include a conductive ink.

[0012] The impact mitigation member may have a closed loop shape along the plurality of edges of the display panel.

[0013] The impact mitigation member may be adjacent to at least one of the plurality of side edges.

[0014] The multiple side edges may include: a first side edge and a second side edge extending in a first direction; and a third side edge and a fourth side edge extending in a second direction intersecting the first direction and shorter than the first side edge and the second side edge, the multiple corner edges may include: a first corner edge connecting the first side edge and the third side edge, a second corner edge connecting the third side edge and the second side edge, a third corner edge connecting the first side edge and the fourth side edge, and a fourth corner edge connecting the fourth side edge and the second side edge, and the impact mitigation member may be adjacent to the third corner edge and the fourth corner edge.

[0015] The impact mitigation member may have arcuate ends in cross-section.

[0016] The impact mitigation member may have a first surface contacting the at least one of the plurality of edges of the display panel and a second surface opposite to the first surface, and the second surface has a convex shape toward the protection member.

[0017] The protection member and the impact mitigation member may have elastic properties.

[0018] The protective member may have a first elastic modulus, and the impact mitigation member may have a second elastic modulus that may be less than the first elastic modulus.

[0019] The display device may further include: a protective film between the display panel and the metal layer; a polarizing layer between the display panel and the window layer; and an adhesive layer between the polarizing layer and the window layer, and the impact mitigation member may directly contact the metal layer, the protective film, the display panel, and the polarizing layer.

[0020] The impact mitigation member may include a first impact mitigation member contacting the metal layer and a second impact mitigation member contacting the polarizing layer, the first impact mitigation member may include a first ink, and the second impact mitigation member may include a second ink.

[0021] The impact mitigation member may include a boundary surface between the first impact mitigation member and the second impact mitigation member.

[0022] The impact mitigation member may contact the adhesive layer and a portion of the window layer adjacent to the adhesive layer.

[0023] According to one or more other embodiments of the present disclosure, a method for manufacturing a display device includes: forming a display panel, the display panel including a display area above a substrate and having multiple edges; providing a window layer, the window layer including a window overlapping the display area and a black matrix adjacent to the window above the display panel; forming a protective member, the protective member overlapping the black matrix and covering the multiple edges of the display panel; and forming an impact mitigation member at at least one of the multiple edges of the display panel, the multiple edges of the display panel including multiple side edges and corner edges connecting the multiple side edges, the impact mitigation member being located between the at least one of the multiple edges of the display panel and the protective member, and being adjacent to at least one of the multiple corner edges of the display panel.

[0024] In the method, forming the impact mitigation member may include applying ink to at least one of the plurality of edges of the display panel using a nozzle.

[0025] The ink may be cured before forming the protection member at the at least one of the plurality of edges of the display panel.

[0026] The method may further include: providing a metal layer between the display panel and the substrate; and providing a polarizing layer between the display panel and the window layer. Forming the impact mitigation member may include: applying a first ink to contact the metal layer; and applying a second ink to contact the polarizing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other aspects and features of the embodiments of the present disclosure will become more apparent by further describing the embodiments of the present disclosure in detail with reference to the accompanying drawings:

[0028] Figure 1 is a perspective view schematically showing a display device according to one or more embodiments of the present disclosure;

[0029] Figure 2 yes Figure 1 An exploded perspective view of a display device;

[0030] Figure 3 yes Figure 1 A plan view of a display device;

[0031] Figure 4 yes Figure 1 A cross-sectional view of a display device;

[0032] Figure 5 It is shown that the Figure 3A circuit diagram of one or more embodiments of a pixel in a display device;

[0033] Figures 6 to 9 is a plan view showing a protective member and an impact mitigation member included in a display device according to one or more embodiments;

[0034] Figures 10 to 12 It is along Figure 6 A cross-sectional view taken along line I to I';

[0035] Fig.13 and Fig.14 is a cross-sectional view illustrating a method of manufacturing a display device according to one or more embodiments; and

[0036] Fig.15 is a flowchart schematically illustrating a method of manufacturing a display device according to one or more embodiments of the present disclosure. DETAILED DESCRIPTION

[0037] Hereinafter, the present disclosure is described in detail with reference to the accompanying drawings. It should be noted that in the following description, only the parts necessary for understanding the operation according to the present disclosure are described, and the description of other parts is omitted so as not to blur the subject matter of the present disclosure. In addition, the present disclosure may be embodied in other forms and is not limited to the embodiments described herein. However, the embodiments described herein are provided to describe in sufficient detail to those skilled in the art to which the present disclosure belongs, so as to realize the technical spirit and scope of the present disclosure.

[0038] In the present disclosure, when a part is "connected" to another part, the situation includes not only the situation that the part is "directly connected" to the other part, but also the situation that the part is "indirectly connected" to the other part and another element is between the part and the other part. The terms used herein are used to describe specific embodiments and are not intended to limit the present disclosure. In the present disclosure, unless otherwise stated, when a part "includes", it means that the part may also include another component without excluding another component. "At least one of X, Y and Z" and "at least one selected from the group consisting of X, Y and Z" can be interpreted as any combination of one X, one Y, one Z or two or more of X, Y and Z (for example, XYZ, XY, YZ and ZZ). Here, "and / or" includes all combinations of one or more of the corresponding configurations.

[0039] Here, terms such as first and second can be used to describe various components, but these components are not limited to these terms. These terms are used to distinguish one component from another component. Therefore, without departing from the spirit and scope of the present disclosure, a first component can refer to a second component within a certain range.

[0040] Figure 1 is a perspective view schematically illustrating a display device according to one or more embodiments of the present disclosure.

[0041] refer to Figure 1 , the display device DD (for example, in a plan view) includes a display area DD_DA, and a non-display area DD_NDA around an edge or periphery of the display area DD_DA. The display area DD_DA may be an area where an image is displayed, and the non-display area DD_NDA may be provided around the display area DD_DA (for example, surrounding the display area DD_DA in a plan view). The non-display area DD_NDA is an area where an image is not displayed. According to one or more embodiments, the shape of the display area DD_DA and the shape of the non-display area DD_NDA may be relatively designed.

[0042] When the display device DD is an electronic device (such as a smart phone, a TV, a tablet PC, a mobile phone, a video phone, a car navigation system, an e-book reader, a desktop PC, a notebook PC, a netbook computer, a workstation, a server, a PDA, a portable multimedia player (PMP), an MP3 player, a medical device, a camera and / or a wearable device), the present disclosure can be applied to the display device DD.

[0043] The display device DD may be provided in various shapes, and for example, the display device DD may be provided in a rectangular plate shape having two pairs of sides parallel to each other, but the present disclosure is not limited thereto. When the display device DD is provided in a rectangular plate shape, one pair of the two pairs of sides may be provided to be longer than the other pair of sides. In the accompanying drawings, the display device DD has an oblique angle portion formed by a straight line, but the present disclosure is not limited thereto. According to one or more embodiments, the display device DD provided in a rectangular plate shape may have an arc shape at a corner portion where one long side and one short side contact each other.

[0044] In one or more embodiments of the present disclosure, for ease of description, the display device DD is described as having a rectangular shape with a pair of long sides and a pair of short sides, and the extension direction of the long side can be indicated as a first direction DR1, the extension direction of the short side can be indicated as a second direction DR2, and the direction perpendicular to the extension direction of the long side and the short side can be indicated as a third direction DR3 (for example, a thickness direction).

[0045] In one or more embodiments of the present disclosure, at least a portion of the display device DD may have flexibility, and the portion having flexibility may be folded.

[0046] Figure 2 yes Figure 1 An exploded perspective view of a display device.

[0047] refer to Figure 2 , the display device DD may include a window layer WDL and a display panel DP.

[0048] The window layer WDL may be located on the display panel DP to protect the display panel DP, and may transmit an image provided from the display panel DP to the transmission area TA. The window layer WDL may include (for example, in a plan view) a transmission area TA, and a non-transmission area NTA around an edge or periphery of the transmission area TA. The window layer WDL may include at least one printed layer located on the rear surface of the transmission area TA and the non-transmission area NTA. The printed layer may have a suitable color (for example, a predetermined color). For example, the printed layer may be provided in black, or may be provided in another color other than black.

[0049] The transmission area TA may have a shape corresponding to the display area DA of the display panel DP. An image displayed in the display area DA of the display panel DP may be viewed from the outside through the transmission area TA of the window layer WDL.

[0050] The non-transmission area NTA may have a shape corresponding to the non-display area NDA of the display panel DP. The non-transmission area NTA may be adjacent to the transmission area TA. The non-transmission area NTA may be an area overlapping with the black matrix, and may reflect or absorb light incident on the transmission area TA. That is, the non-transmission area NTA may be an area with lower light transmittance than the transmission area TA. However, the present disclosure is not limited thereto, and the non-transmission area NTA may be omitted.

[0051] The display panel DP may be located between the window layer WDL and the receiving member BC. According to one or more embodiments, the optical layer ARU and the circuit board FB may be located between the display panel DP and the window layer WDL.

[0052] The optical layer ARU may be positioned on the display panel DP. The optical layer ARU may reduce external light reflection. The optical layer ARU may be a polarization layer POL (refer to Fig.10 ), a light scattering layer, a light blocking layer and / or an optical functional layer. According to one or more embodiments, the optical layer ARU may include a color filter.

[0053] The circuit board FB may be provided in the extended pad region of the display panel DP. Figure 2As shown in , the circuit board FB may have a structure folded and bent along one side surface of the display panel DP. The circuit board FB may be connected to one end (or one side surface) of the display panel DP to provide a driving signal and a suitable voltage (e.g., a predetermined voltage) to the display panel DP. For example, the driving signal may be a signal for displaying an image of the display panel DP, and the suitable voltage (e.g., a predetermined voltage) may be a driving voltage required to drive the display panel DP. The circuit board FB may be provided as a flexible printed circuit board (FPCB). However, the present disclosure is not limited thereto.

[0054] In addition, the circuit board FB can process various signals input from the printed circuit board (PCB) and can output the processed signals to the display panel DP. To this end, the circuit board FB can be attached to each of the display panel DP and the printed circuit board (PCB). In one or more embodiments, the printed circuit board (PCB) can be located on the lower surface of the display panel DP opposite to the optical layer ARU.

[0055] The receiving member BC may be combined with the window layer WDL. The receiving member BC may provide a rear surface of the display device DD, and may be combined with the window layer WDL to define an internal space. The receiving member BC may include a material having relatively high rigidity. For example, the receiving member BC may be a shell formed of glass, plastic and / or metal. The receiving member BC may stably protect the configuration of the display device DD received in the internal space from external impacts. In addition, the receiving member BC is described as including a material having high rigidity, but the present disclosure is not limited thereto, and the receiving member BC may include a flexible material. In one or more embodiments, the display device DD according to one or more embodiments of the present disclosure may have foldable and / or bendable characteristics. Therefore, the configuration included in the display device DD may also have flexible characteristics.

[0056] The display panel DP can generate an image and can transmit the generated image to the window layer WDL. For example, as the display panel DP, a display panel capable of self-luminescence (such as an organic light-emitting display panel (OLED panel) using an organic light-emitting diode as a light-emitting element, an ultra-small light-emitting diode display panel (nano-LED display panel) using an ultra-small light-emitting diode as a light-emitting element, and / or a quantum dot organic light-emitting display panel (QD OLED panel) using quantum dots and organic light-emitting diodes) can be used. In addition, as the display panel DP, a non-emissive display panel (such as a liquid crystal display panel (LCD panel), an electrophoretic display panel (EPD panel), and an electrowetting display panel (EWD panel)) can be used. When a non-emissive display panel is used as the display panel DP, the display device DD may include a backlight unit that provides light to the display panel DP.

[0057] Figure 3 yes Figure 1 A plan view of a display device.

[0058] refer to Figure 3 , the display panel DP of the display device DD may include a plurality of pixels PXL.

[0059] The display panel DP may be formed of one area having an approximately rectangular shape in a plan view. For example, the display panel DP may have a rounded rectangular shape in which areas around corners are rounded in a plan view. However, the present disclosure is not limited thereto.

[0060] The display panel DP may include a plurality of edges surrounding a region. In addition, the plurality of edges may include first, second, third and fourth side edges SE1, SE2, SE3 and SE4 and first, second, third and fourth corner edges CE1, CE2, CE3 and CE4.

[0061] According to one or more embodiments, the display panel DP may include a first side edge SE1 and a second side edge SE2 extending in a first direction DR1. The first side edge SE1 and the second side edge SE2 may face (e.g., be opposite) each other, and the display panel DP is interposed between the first side edge SE1 and the second side edge SE2. The display panel DP may include a third side edge SE3 and a fourth side edge SE4 extending in a second direction DR2 intersecting the first direction DR1 and being shorter than the first side edge SE1 and the second side edge SE2. The third side edge SE3 and the fourth side edge SE4 may face each other, and the display panel DP is interposed between the third side edge SE3 and the fourth side edge SE4. The first side edge SE1, the second side edge SE2, the third side edge SE3, and the fourth side edge SE4 may be substantially the same except for their positions.

[0062] The display panel DP may include a first corner edge CE1 connecting the first side edge SE1 and the third side edge SE3, a second corner edge CE2 connecting the third side edge SE3 and the second side edge SE2, a third corner edge CE3 connecting the first side edge SE1 and the fourth side edge SE4, and a fourth corner edge CE4 connecting the fourth side edge SE4 and the second side edge SE2.

[0063] In a plan view, the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4 may have a rounded curved shape. For example, the first corner edge CE1 connecting one side of the first side edge SE1 in the first direction DR1 and one side of the third side edge SE3 in the second direction DR2 may have a rounded curved shape in a plan view. However, the present disclosure is not limited thereto.

[0064] The display panel DP may include a display area DA and a non-display area NDA. The display area DA may be an area where pixels PXL are provided to display an image, and the non-display area NDA may be an area where pixels PXL are not provided and may be an area where an image is not displayed. For convenience, Figure 3 Only one pixel PXL is shown in the figure, but a plurality of pixels PXL may be provided in the display area DA of the display panel DP.

[0065] The display area DA of the display panel DP may correspond to the display area DD_DA of the display device DD, and the non-display area NDA of the display panel DP may correspond to the non-display area DD_NDA of the display device DD. The non-display area NDA may overlap with the protection member covering the edge of the display panel DP.

[0066] The non-display area NDA may be provided on at least one side of the display area DA. The non-display area NDA may be around the display area DA along an edge or periphery of the display area DA (e.g., may surround the display area DA). In the non-display area NDA, a line unit connected to the pixel PXL and a driver connected to the line unit to drive the pixel PXL may be provided.

[0067] The pixels PXL may be provided in the display area DA of the display panel DP. Each of the pixels PXL may be the smallest unit for displaying an image. The pixel PXL may include a light-emitting element that emits white light and / or color light. Each of the pixels PXL may emit one of red light, green light, and blue light, but is not limited thereto, and may emit cyan, magenta, and / or yellow, etc.

[0068] The pixels PXL may be arranged in a matrix form along rows extending in a first direction DR1 and along columns extending in a second direction DR2 intersecting the first direction DR1. However, the arrangement form of the pixels PXL is not particularly limited, and the pixels PXL may be arranged in various forms. In the accompanying drawings, the pixels PXL are shown as having a rectangular shape, but the present disclosure is not limited thereto and may be modified to various shapes. In addition, when a plurality of pixels PXL are provided, the plurality of pixels PXL may be provided to have different areas (or sizes). For example, in the case where the pixels PXL emit light of different colors, the pixels PXL may be provided with different areas (or sizes) or different shapes for each color.

[0069] Figure 4 yes Figure 1 A cross-sectional view of a display device.

[0070] refer to Figure 4, the display device DD may include a substrate SUB, a display panel DP and a window layer WDL. In one or more embodiments, the display panel DP may include a pixel circuit layer PCL and a display element layer DPL.

[0071] The substrate SUB may include a semiconductor substrate. As an example, the substrate SUB may include a bulk silicon wafer or an epitaxial wafer. The epitaxial wafer may include a crystalline material layer, i.e., an epitaxial layer, grown on a bulk substrate by an epitaxial process. The substrate SUB is not limited to a bulk wafer or an epitaxial wafer, and may be formed using various wafers such as a polished wafer, an annealed wafer, and / or a silicon on insulator (SOI) wafer.

[0072] The pixel circuit layer PCL may be provided on a substrate SUB and may include a plurality of transistors and signal lines connected to the transistors. For example, each transistor may be a device in which a semiconductor layer, a gate electrode, a first terminal, and a second terminal are stacked in sequence and one or more insulating layers are interposed therebetween. The semiconductor layer may include amorphous silicon, polycrystalline silicon, low-temperature polycrystalline silicon, and / or an organic semiconductor. The gate electrode, the first terminal, and the second terminal of the transistor may include one of aluminum (Al), copper (Cu), titanium (Ti), and molybdenum (Mo), but the present disclosure is not limited thereto. In addition, the pixel circuit layer PCL may include at least one insulating layer.

[0073] The display element layer DPL may be located on the pixel circuit layer PCL. The display element layer DPL may include a light emitting element configured to emit light. For example, the light emitting element may be an organic light emitting diode (OLED), but the present disclosure is not limited thereto. According to one or more embodiments, the light emitting element may be an inorganic light emitting element including an inorganic light emitting material or a light emitting element that emits light by changing the wavelength of the emitted light using quantum dots.

[0074] The window layer WDL may be located on the display element layer DPL. The window layer WDL may protect the display panel DP from external scratches and impacts. The window layer WDL may be optically transparent. For example, the window layer WDL may be formed of a glass substrate, a plastic film and / or a plastic substrate, etc. In addition, although the window layer WDL is shown as a single layer, the window layer WDL may include a plurality of layers. That is, the window layer WDL may have a selected multilayer structure. The multilayer structure may be formed by a continuous process or a bonding process using an adhesive layer.

[0075] The touch sensor may be further located between the display panel DP and the window layer WDL. The touch sensor may be directly located on a surface of the display panel DP displaying an image, and may receive a user's touch input.

[0076] Figure 5 It is shown that the Figure 3 A circuit diagram of one or more embodiments of a pixel in a display device.

[0077] exist Figure 5 , for convenience of description, a pixel PXLij located in the i-th row and the j-th column is shown as an example.

[0078] refer to Figure 5 The pixel PXLij may include a pixel circuit PXC connected to an i-th scan line SLi and a j-th data line DLj, and a light emitting element LD connected to the pixel circuit PXC.

[0079] According to one or more embodiments, the light emitting element LD may be selected as an organic light emitting diode (OLED). In addition, the light emitting element LD may be selected as an inorganic light emitting diode, such as a micro light emitting diode (LED) or a quantum dot LED. In addition, the light emitting element LD may be an element configured by a combination of organic materials and / or inorganic materials.

[0080] The pixel circuit PXC is configured to receive a data voltage provided through the jth data line DLj when a gate turn-on signal is applied to the i-th scan line SLi. The pixel circuit PXC is configured to provide a driving current according to the received data voltage to the light emitting element LD. For example, the pixel circuit PXC may include a first transistor M1 and a second transistor M2 and a storage capacitor Cst.

[0081] According to one or more embodiments, the first transistor M1 may include a drain electrode connected to a first power supply VDD, a source electrode connected to a pixel electrode (e.g., an anode electrode of the light emitting element LD), and a gate electrode connected to a first node N1. According to one or more embodiments, the drain electrode and the source electrode of the first transistor M1 may be changed according to the polarity of a voltage applied to the first transistor M1 and / or the type of the first transistor M1.

[0082] The first transistor M1 can control a driving current flowing from the first power supply VDD through the light emitting element LD to the second power supply VSS in response to a voltage of the first node N1. That is, the first transistor M1 can be a driving transistor that controls the driving current of the pixel PXLij. According to one or more embodiments, the first power supply VDD and the second power supply VSS can be a high potential pixel power supply and a low potential pixel power supply, respectively.

[0083] According to one or more embodiments, the second transistor M2 may include a drain electrode connected to the j-th data line DLj, a source electrode connected to the first node N1, and a gate electrode connected to the i-th scan line SLi. According to one or more embodiments, the drain electrode and the source electrode of the second transistor M2 may be changed according to the polarity of the voltage applied to the second transistor M2 and / or the type of the second transistor M2. When a scan signal having a gate-on voltage (e.g., a high voltage) is provided from the i-th scan line SLi, the second transistor M2 may be turned on. When the second transistor M2 is turned on, the j-th data line DLj and the first node N1 may be electrically connected. That is, the second transistor M2 may be a switching transistor that controls the connection between the pixel PXLij and the j-th data line DLj.

[0084] According to one or more embodiments, the storage capacitor Cst may be connected between an electrode (e.g., a source electrode) of the first transistor M1 and the first node N1. The storage capacitor Cst may store a voltage corresponding to a data signal provided to the first node N1, and may maintain the stored voltage for an appropriate time period (e.g., a predetermined time period). For example, the storage capacitor Cst may maintain the stored voltage until a data signal of the next frame is provided. According to one or more embodiments, the connection position of the storage capacitor Cst may be changed. For example, the storage capacitor Cst may be connected between the first power supply VDD and the first node N1.

[0085] According to one or more embodiments, the light emitting element LD may be connected between the first transistor M1 and the second power supply VSS. For example, the light emitting element LD may include an anode electrode connected to the source electrode of the first transistor M1 and a cathode electrode connected to the second power supply VSS. The light emitting element LD may emit light having a brightness corresponding to the driving current controlled by the first transistor M1.

[0086] exist Figure 5 In one or more embodiments, the first transistor M1 and the second transistor M2 are implemented as N-type transistors, but the present disclosure is not limited thereto. For example, at least one of the first transistor M1 and the second transistor M2 may be implemented as a P-type transistor.

[0087] Figures 6 to 9 is a plan view illustrating a protection member and an impact mitigation member included in a display device according to one or more embodiments.

[0088] Figures 6 to 9 It is possible to show the positions where the protection member PM and the impact mitigation members SRM, SRM', and SRM" are located when the display devices DD, DD', DD", and DD'" are viewed from the third direction DR3. However, Figures 6 to 9 The display does not include the window layer WDL (reference Figure 2 ).

[0089] According to one or more embodiments, the display device DD may include a window layer WDL (see Figure 2 ) and the display panel DP between the receiving component BC.

[0090] The display device DD may include a protective member PM covering the edge of the display panel DP. The protective member PM may overlap with the black matrix of the window layer WDL and cover the edge of the display panel DP. The protective member PM may have elastic properties. Therefore, the protective member PM can absorb external impacts applied to the display panel DP. In addition, the protective member PM may have a large elastic modulus (elastic modulus). For example, the elastic modulus of the protective member PM may be about 2 GPa or greater. Therefore, the protective member PM may have high physical strength, such as high hardness, durability and / or scratch resistance. However, the elastic modulus of the protective member PM is an example and is not limited to this.

[0091] refer to Figures 6 to 9 , the protection member PM may be located outside the display panel DP and may be around the display panel DP (for example, may surround the display panel DP). The protection member PM may be located between the display panel DP and the receiving member BC in a closed loop shape. For example, the protection member PM may extend in the first direction DR1 along the first side edge SE1 and the second side edge SE2. The protection member PM may extend in the second direction DR2 along the third side edge SE3 and the fourth side edge SE4. In addition, the protection member PM may extend in a curved shape along the first corner edge CE1, the second corner edge CE2, the third corner edge CE3 and the fourth corner edge CE4. The protection member PM may be around the outside of the display panel DP along the first corner edge CE1, the second corner edge CE2, the third corner edge CE3 and the fourth corner edge CE4 and the first side edge SE1, the second side edge SE2, the third side edge SE3 and the fourth side edge SE4 (for example, may surround the outside of the display panel DP in a plan view). The following description of the protection member PM is consistent with Figure 6 The overlapping descriptions thereof are omitted.

[0092] The display device DD may further include a shock mitigation member SRM located between the display panel DP and the protective member PM. At least a portion of the shock mitigation member SRM may be located between the display panel DP and the protective member PM. In addition, the shock mitigation member SRM may have a small elastic modulus. The elastic modulus of the shock mitigation member SRM may be smaller than the elastic modulus of the protective member PM. For example, the elastic modulus of the shock mitigation member SRM may be approximately 100 MPa or greater and approximately 1500 MPa or less. However, the elastic modulus of the shock mitigation member SRM may be an example, and when the elastic modulus of the shock mitigation member SRM is smaller than the elastic modulus of the protective member PM, it is not limited thereto. The shock mitigation member SRM having a small elastic modulus may absorb external impact applied to the display panel DP together with the protective member PM, thereby further preventing or reducing deformation of the display panel DP.

[0093] refer to Figure 6 In the display device DD, the impact mitigation member SRM may be adjacent to at least one of the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4. For example, the third corner edge CE3 and the fourth corner edge CE4 corresponding to the lower portion of the display panel DP may be severely deformed due to the impact when falling. According to one or more embodiments of the present disclosure, the impact mitigation member SRM may be adjacent to the third corner edge CE3 and the fourth corner edge CE4 to protect the third corner edge CE3 and the fourth corner edge CE4. For example, the first impact mitigation member SRM1 may be adjacent to the third corner edge CE3. The second impact mitigation member SRM2 may be adjacent to the fourth corner edge CE4. The first impact mitigation member SRM1 and the second impact mitigation member SRM2 may be spaced apart from each other and may be adjacent to the third corner edge CE3 and the fourth corner edge CE4, respectively. As described above, by arranging the impact mitigation member SRM in the minimum area, the deformation of the display panel DP can be effectively prevented or mitigated.

[0094] refer to Figure 7, in the display device DD', the impact mitigation member SRM may be adjacent to each of the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4. For example, interface delamination due to impact may occur at the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4 of the display panel DP. According to one or more embodiments of the present disclosure, the impact mitigation member SRM may be adjacent to each of the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4. For example, the first impact mitigation member SRM1 may be adjacent to the third corner edge CE3. The second impact mitigation member SRM2 may be adjacent to the fourth corner edge CE4. The third impact mitigation member SRM3 may be adjacent to the first corner edge CE1. The fourth impact mitigation member SRM4 may be adjacent to the second corner edge CE2. The first, second, third, and fourth impact mitigating members SRM1, SRM2, SRM3, and SRM4 may be spaced apart from one another and may be adjacent to the first, second, third, and fourth corner edges CE1, CE2, CE3, and CE4. As described above, by arranging the impact mitigating members SRM at all corner edges, deformation occurring at the corner edges of the display panel DP may be prevented or mitigated.

[0095] refer to Figure 8 In the display device DD", the impact mitigation member SRM' may be adjacent to at least one of the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4. Similarly, the impact mitigation member SRM' may be adjacent to at least one of the first side edge SE1, the second side edge SE2, the third side edge SE3, and the fourth side edge SE4. For example, the third corner edge CE3 and the fourth corner edge CE4 and the fourth side edge SE4 between the third corner edge CE3 and the fourth corner edge CE4 may correspond to the lower portion of the display panel DP. The lower portion of the display panel DP may be an area that may be deformed by impact when dropped. Therefore, the impact mitigation member SRM' may be adjacent to at least one of the first side edge SE1, the second side edge SE2, the third side edge SE3, and the fourth side edge SE4. For example, the third corner edge CE3 and the fourth corner edge CE4 and the fourth side edge SE4 between the third corner edge CE3 and the fourth corner edge CE4 may correspond to the lower portion of the display panel DP. The lower portion of the display panel DP may be an area that may be deformed by impact when dropped. The light member SRM' may be adjacent to the third corner edge CE3 and the fourth corner edge CE4, and adjacent to the fourth side edge SE4 located between the third corner edge CE3 and the fourth corner edge CE4. For example, the impact mitigation member SRM' may be adjacent to the third corner edge CE3 to the fourth corner edge CE4. In addition, the impact mitigation member SRM' may extend in the second direction DR2 along the fourth side edge SE4 between the third corner edge CE3 and the fourth corner edge CE4. As described above, by having the impact mitigation member SRM' around the lower portion of the display panel DP (for example, surrounding the lower portion of the display panel DP in a plan view), deformation of the display panel DP may be prevented or mitigated.

[0096] See also Fig. 9In the display device DD'', the impact mitigation member SRM'' may be adjacent to the first corner edge CE1, the second corner edge CE2, the third corner edge CE3 and the fourth corner edge CE4 and the first side edge SE1, the second side edge SE2, the third side edge SE3 and the fourth side edge SE4. In addition, the impact mitigation member SRM'' may be in a closed loop shape between the display panel DP and the protective member PM. As an example, the impact mitigation member SRM'' may be continuous along the first corner edge CE1, the second corner edge CE2, the third corner edge CE3 and the fourth corner edge CE4 and the first side edge SE1, the second side edge SE2, the third side edge SE3 and the fourth side edge SE4 to surround the display panel DP (e.g., surround the display panel DP in a plan view). Therefore, the impact mitigation member SRM'' may have a shape similar to that of the display panel DP in a plan view. For example, when the display panel DP has a rectangular shape, the impact mitigation member SRM'' in a closed loop shape to surround the outside of the display panel DP (e.g., surround the outside of the display panel DP in a plan view) may have a rectangular shape in which an opening is formed. As described above, by having the shock mitigating member SRM'' around the display panel DP (eg, surrounding the display panel DP in a plan view), deformation of the display panel DP may be completely prevented or mitigated.

[0097] Figures 10 to 12 It is along Figure 6 A cross-sectional view taken along line I-I'.

[0098] refer to Figures 10 to 12 as well as Figure 6 , the display device DD may include a substrate SUB, a metal layer ML, an adhesive film PSA, a protective film PF, a display panel DP, a polarizing layer POL, an adhesive layer OCA, and a window layer WDL. Hereinafter, the substrate SUB, the display panel DP, and the window layer WDL may be the same as those described above. Figure 4 The repeated description thereof is omitted.

[0099] exist Figures 10 to 12 In the illustrated cross section, relative lengths among the adhesive film PSA, the protection film PF, the display panel DP, the polarizing layer POL, and the adhesive layer OCA may be varied, and are not limited thereto.

[0100] The metal layer ML may be located between the display panel DP and the substrate SUB. In addition, the metal layer ML may be directly located on the protective film PF positioned on one side of the display panel DP. The metal layer ML may be rigid. However, the present disclosure is not limited thereto, and at least a portion of the metal layer ML may be flexible. For example, the metal layer ML may include a metal material such as stainless steel, aluminum, iron and / or copper. Alternatively, the metal layer ML may include carbon graphite. However, the present disclosure is not limited thereto. The metal layer ML may reduce or prevent damage to the display device DD due to external impacts. In addition, the metal layer ML may reduce or prevent brightness changes due to temperature deviations of the display panel DP by dissipating heat from the display panel DP.

[0101] The adhesive film PSA may bond the metal layer ML and the protective film PF. The adhesive film PSA may be a pressure-sensitive adhesive film. In addition, when pressure is applied to the adhesive film PSA, the adhesive material may act, and thus the adhesive may be attached to the surface to be bonded. For example, the adhesive film PSA may include a conventional adhesive or a cohesive, and may include a sheet type or a resin type.

[0102] The protective film PF may be located on the lower surface of the display panel DP. The protective film PF may reduce or prevent external moisture from penetrating into the display panel DP, and may absorb external impacts. For example, the protective film PF may include a plastic film as a base substrate. The protective film PF may include a plastic film, the plastic film including one selected from the group consisting of polyethersulfone (PES), polyacrylate, polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate, polyimide (PI), polycarbonate (PC), polyarylethersulfone and a combination thereof. However, the material configuring the protective film PF is not limited to the plastic film, and may include an organic / inorganic composite material.

[0103] The polarization layer POL may be located between the window layer WDL and the display panel DP. The polarization layer POL may control the polarization of external light incident through the window WD of the window layer WDL. For example, one component of the external light incident on the polarization layer POL may be absorbed or reflected and may not pass through the polarization layer POL. On the other hand, a component perpendicular to one component of the external light incident on the polarization layer POL may pass through the polarization layer POL. In addition, the polarization layer POL may include a polymer resin stretched in a specific direction. However, the present disclosure is not limited thereto.

[0104] The adhesive layer OCA may be located between the polarizing layer POL and the window layer WDL. The adhesive layer OCA may be a transparent adhesive layer with high light transmittance, such as an optically transparent adhesive film or an optically transparent adhesive resin film. Alternatively, the adhesive layer OCA may be a pressure-sensitive adhesive film. The adhesive layer OCA may include substantially the same material as the adhesive film PSA.

[0105] exist Fig.10 In FIG. 1 , the adhesive layer OCA is shown to have the same length as the display panel DP under the window layer WDL, but is not limited thereto. For example, the adhesive layer OCA may have a length longer or shorter than the display panel DP at the side edge of the display panel DP.

[0106] The window layer WDL may include a display area DA (reference Figure 2 ) overlapping window WD and a black matrix BM adjacent to the window WD. The black matrix BM may be disposed on one surface of the window layer WDL facing the display panel DP. The black matrix BM may define a non-transmissive area NTA of the window layer WDL. In one or more embodiments, the black matrix BM may be formed of a colored organic layer and may be formed on one surface of the window layer WDL by a coating or printing method. Alternatively, in other embodiments, the black matrix BM may be formed on a base layer (such as a separate transparent film), and the base layer on which the black matrix BM is formed may be attached to one surface of the window WD.

[0107] refer to Fig.10 , the impact mitigation member SRM may be located below the window layer WDL. The impact mitigation member SRM may be formed to contact at least one of the multiple layers located below the window layer WDL. In addition, the impact mitigation member SRM may be formed to be spaced apart from the window layer WDL so as not to contact the window layer WDL. As an example, the impact mitigation member SRM may directly contact one side surface of the metal layer ML and one side surface of the display panel DP. However, the impact mitigation member SRM may not contact one surface of the window layer WDL. For example, the impact mitigation member SRM may directly contact one side surface of the metal layer ML, the adhesive film PSA, the protective film PF, the display panel DP, and the polarization layer POL.

[0108] According to one or more embodiments, the shock mitigation member SRM may have an arc shape in a cross-sectional view. The shock mitigation member SRM may be formed to protrude from one side surface of the metal layer ML and one side surface of the display panel DP in the first direction DR1 or the second direction DR2. For example, the shock mitigation member SRM may have a first surface S1 contacting at least one of the edges of the display panel DP, and a second surface S2 opposite to the first surface S1. The second surface S2 may have a convex shape in a direction toward the protective member PM.

[0109] The shock mitigation member SRM may include ink. The shock mitigation member SRM may be formed by applying ink to at least one of the edges of the display panel DP. Here, the ink may include a material having a small elastic modulus and a high impact absorption rate. In addition, the ink may be a conductive ink or a non-conductive ink. For example, the ink may include a urethane-based resin, an acrylic-based resin, a vinyl resin, or other resins. For example, the shock mitigation member SRM may include benzene, polyethylene terephthalate (PET), polyimide, polyamide, polyethylene naphthalate (PEN) and / or polycarbonate, etc. However, the present disclosure is not limited thereto.

[0110] The protection member PM may be located under the window layer WDL. The protection member PM may be adjacent to the edge of the display panel DP to support the lower portion of the window layer WDL. According to one or more embodiments, the protection member PM may be formed under the window layer WDL along the outer portion of the window layer WDL and may overlap the black matrix BM in the third direction DR3.

[0111] The protection member PM may be formed after the shock mitigation member SRM is formed. For example, the protection member PM may be formed after the ink of the shock mitigation member SRM is cured.

[0112] According to one or more embodiments, the protection member PM may be formed to contact the impact mitigation member SRM. The protection member PM may be formed to contact at least one layer of the plurality of layers located below the window layer WDL, and the impact mitigation member SRM is interposed between the protection member PM and the at least one layer. For example, the protection member PM may directly contact the substrate SUB and the adhesive layer OCA. On the other hand, the protection member PM may contact the metal layer ML, the adhesive film PSA, the protective film PF, the display panel DP, and the polarization layer POL, and the impact mitigation member SRM is interposed between the protection member PM and the metal layer ML, the adhesive film PSA, the protective film PF, the display panel DP, and the polarization layer POL. However, this is merely an example, and the layer in contact with the protection member PM may vary according to the impact mitigation member SRM.

[0113] The protection member PM may include a material having an elastic modulus greater than that of the impact mitigation member SRM. For example, the protection member PM may be a urethane-based resin, an acrylic-based resin, a vinyl resin, or other resins. However, the present disclosure is not limited thereto.

[0114] In addition, to avoid Fig.10 The description of the embodiment of is repeated, and the points different from the above-mentioned embodiment are mainly described.

[0115] refer to Fig.11, the impact mitigation member SRM' may be located below the window layer WDL. The impact mitigation member SRM' may be formed to contact at least one of the multiple layers located below the window layer WDL. In addition, the impact mitigation member SRM' may be formed to contact a portion of the window layer WDL. For example, the impact mitigation member SRM' may directly contact one side surface of the metal layer ML, one side surface of the adhesive film PSA, one side surface of the protective film PF, one side surface of the display panel DP, one side surface of the polarization layer POL, and one side surface of the adhesive layer OCA. In addition, the impact mitigation member SRM' may directly contact the black matrix BM of the window layer WDL adjacent to the adhesive layer OCA.

[0116] In addition, the impact mitigation member SRM' may have an inclined surface in a cross-sectional view. For example, the impact mitigation member SRM' may have a first surface S1' in contact with at least one of the edges of the display panel DP, a second surface S2' opposite to the first surface S1', and a third surface S3 in contact with the window layer WDL. The second surface S2' may be an inclined surface. However, this is only an example and is not limited thereto.

[0117] refer to Fig.12 , the impact mitigation member SRM" may include a boundary surface BA. The impact mitigation member SRM" may be formed by applying ink to at least one of the edges of the display panel DP. The ink may be applied in a first stage or in multiple stages. For example, the ink may be applied in the first stage using two nozzles having different discharge amounts from each other. In addition, the ink may be applied in multiple stages using a single nozzle by adjusting the application time and / or application speed of each application point.

[0118] In one or more embodiments, when the impact mitigation member SRM" is formed by applying ink in the first stage and the second stage, the impact mitigation member SRM" may include a boundary surface BA between a portion contacting the metal layer ML and a portion contacting the polarization layer POL. For example, the impact mitigation member SRM" may include a boundary surface BA between the ink applied and cured in the first stage and the ink applied and cured in the second stage. However, depending on the manufacturing method of the impact mitigation member SRM", the impact mitigation member SRM" may include the boundary surface BA, but is not limited thereto. For example, when the ink applied in the first stage and the ink applied in the second stage are cured synchronously (e.g., simultaneously), the impact mitigation member SRM" may not include the boundary surface BA.

[0119] Reference later Figures 13 to 15 Details regarding a method of forming a shock mitigating member (SRM) are described.

[0120] Fig.13 and Fig.14is a cross-sectional view illustrating a method of manufacturing a display device according to one or more embodiments.

[0121] Fig.13 and Fig.14 is a schematic diagram showing a manufacturing process of a display device DD (see FIG. Figure 3 ) method.

[0122] Hereinafter, ink application for forming the impact mitigation member SRM is described using a nozzle application method as an example, but is not limited thereto. For example, various methods such as an inkjet method and / or a screen application method may be employed.

[0123] refer to Fig.13 and Fig.14 After combining a plurality of layers including the display panel DP on the window layer WDL, a material for forming a shock mitigation member SRM (refer to Fig.10 ) ink.

[0124] According to one or more embodiments, a printing device (printing device) 10 and 10' for applying ink may be positioned on the display panel DP. The printing device 10 and 10' may include a head 12 and a nozzle 11 provided below the head 12. The nozzle 11 may be a single nozzle or a plurality of nozzles including at least two types of nozzles. In addition, the nozzle 11 may include a quadrilateral, an elliptical and / or a circular shape. However, the shape and size of the nozzle 11 may be appropriately selected and are not limited thereto. In one or more embodiments, in Fig.13 and Fig.14 In the embodiment, the printing devices 10 and 10' may further include a container storing the ink in liquid form and connected to the nozzles 11 and 11'.

[0125] refer to Fig.13 , the printing device 10 may apply the first ink INK1 to at least one of the edges of the display panel DP. In addition, the first ink INK1 applied to the corresponding edge of the display panel DP may also be applied to the metal layer ML and the adhesive film PSA, the protective film PF. As an example, the first ink INK1 may be sprayed on one side of the metal layer ML by a printing process using the printing device 10. The first ink INK1 may be sprayed through a nozzle 11 included in the printing device 10. The first ink INK1 discharged from the nozzle 11 may be applied to one side of the metal layer ML adjacent to the edge of the display panel DP. The applied first ink INK1 may have a shape extending in the first direction DR1 or the second direction DR2. In addition, due to the effect of surface tension, the first ink INK1 may have an arc shape in a cross section.

[0126] refer to Fig.14, the printing device 10' can apply the second ink INK2 to at least one of the edges of the display panel DP again after the application of the first ink INK1 is completed. In addition, the second ink INK2 applied to the corresponding edge of the display panel DP can also be applied to the polarizing layer POL. For example, by using the printing process of the printing device 10', the second ink INK2 can be sprayed to a position lower than the point where the first ink INK1 is sprayed. The second ink INK2 can be ejected through the nozzle 11' included in the printing device 10' (the printing device 10' also includes a head 12'). The second ink INK2 can be the same ink as the first ink INK1. The second ink INK2 discharged from the nozzle 11' can be applied to one side of the polarizing layer POL adjacent to the edge of the display panel DP. The applied second ink INK2 can have a shape extending in the first direction DR1 or the second direction DR2. In addition, due to the effect of surface tension, the second ink INK2 can have an arc shape in the cross section.

[0127] The second ink INK2 may be applied before the first ink INK1 is cured. In this case, the impact mitigation member SRM formed by the first ink INK1 and the second ink INK2 (reference Fig.12 ) may not include the boundary surface BA (reference Fig.12 ). On the other hand, the second ink INK2 can be applied even after the first ink INK1 is cured. In this case, the impact mitigation member SRM formed by the first ink INK1 and the second ink INK2 (reference Fig.12 ) may include a boundary surface BA (reference Fig.12 ).

[0128] According to one or more embodiments, the first ink INK1 and the second ink INK2 may be cured before the protective member PM is formed at the edge of the display panel DP. For example, the first ink INK1 and the second ink INK2 may be cured by irradiating light (e.g., ultraviolet rays) to the first ink INK1 and the second ink INK2. However, the present disclosure is not limited thereto.

[0129] Fig.15 Schematically illustrates a flow chart of a method for manufacturing a display device according to one or more embodiments of the present disclosure. Figures 6 to 14 Duplicate contents of the description may be omitted.

[0130] refer to Fig.15 , manufacturing a display device DD (see, for example, Figure 6 ) may include forming a display panel S1010, providing a window layer S1020, providing a metal layer S1030, providing a polarizing layer S1040, forming an impact mitigating member S1050, and forming a protective member S1060.

[0131] In the following, the manufacturing steps of the display device DD are performed sequentially, but unless the spirit of the present disclosure is changed, some steps shown as being performed sequentially may be performed synchronously (e.g., simultaneously), the order of each step may be changed, some steps may be omitted, or another step may be included between two steps.

[0132] refer to Fig.15 , Fig.10 and Fig.12 In step S1010, a display panel DP may be formed. According to one or more embodiments, step S1010 may form a display panel DP including a display area on a substrate SUB. The display panel DP may include a plurality of edges surrounding an area. In addition, the plurality of edges may include a first side edge SE1 (refer to Figure 3 ), the second side edge SE2 (reference Figure 3 )、third side edge SE3 (reference Figure 3 ) and the fourth side edge SE4 (reference Figure 3 ) and the first corner edge CE1 (reference Figure 3 ), the second corner edge CE2 (reference Figure 3 ), the third corner edge CE3 (reference Figure 3 ) and the fourth corner edge CE4 (reference Figure 3 ).

[0133] In S1020, a window layer WDL may be provided. According to one or more embodiments, step S1020 may provide a window layer WDL including a window WD overlapping the display area and a black matrix BM adjacent to the window WD on the display panel DP.

[0134] In S1030, a metal layer ML may be provided. According to one or more embodiments, step S1030 may provide a metal layer ML between the display panel DP and the substrate SUB.

[0135] In S1040, a polarization layer POL may be provided. According to one or more embodiments, step S1040 may provide a polarization layer POL between the window layer WDL and the display panel DP.

[0136] In S1050, a shock mitigation member SRM may be formed. According to one or more embodiments, step S1050 may form a shock mitigation member SRM adjacent to at least one of the edges of the display panel DP. After combining a plurality of layers including the display panel DP on the window layer WDL, ink may be applied to form the shock mitigation member SRM.

[0137] For example, the shock mitigation member SRM may be formed by applying ink to at least one of the edges of the display panel DP using a nozzle. For example, the shock mitigation member SRM may be formed by applying ink in a first stage and a second stage. In the first stage, the ink may be applied to one side of the metal layer ML adjacent to the edge of the display panel DP. In addition, in the second stage, the ink may be applied to one side of the polarization layer POL adjacent to the edge of the display panel DP.

[0138] The impact mitigation member SRM may be formed by applying ink adjacent to at least one of the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4. For example, ink may be applied to the third corner edge CE3 and the fourth corner edge CE4 of the display panel DP. Thus, the impact mitigation member SRM may be formed adjacent to the third corner edge CE3 and the fourth corner edge CE4. Alternatively, ink may be applied to each of the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4. Thus, the impact mitigation member SRM may be formed adjacent to the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4.

[0139] The impact mitigation member SRM may be formed by applying ink adjacent to at least one of the first side edge SE1, the second side edge SE2, the third side edge SE3, and the fourth side edge SE4. For example, ink may be applied to the third corner edge CE3 and the fourth corner edge CE4 and the fourth side edge SE4 between the third corner edge CE3 and the fourth corner edge CE4. Therefore, the impact mitigation member SRM may be formed adjacent to the third corner edge CE3 and the fourth corner edge CE4 and the fourth side edge SE4 between the third corner edge CE3 and the fourth corner edge CE4. Alternatively, ink may be applied to the outside of the display panel DP (e.g., around the outside of the display panel DP in a plan view) along the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4 and the first side edge SE1, the second side edge SE2, the third side edge SE3, and the fourth side edge SE4. Therefore, the impact mitigation member SRM may be formed adjacent to the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4 and the first side edge SE1, the second side edge SE2, the third side edge SE3, and the fourth side edge SE4. Here, the ink may include a material having a relatively small elastic modulus and a high impact absorption rate. In addition, the ink may be a conductive ink or a non-conductive ink. For example, the ink may include a urethane-based resin, an acrylic-based resin, a vinyl resin, and / or other resins.

[0140] Before the protection member PM is formed at the edge of the display panel DP, the shock mitigation member SRM may be cured. The ink included in the shock mitigation member SRM may be cured by irradiation of light (eg, ultraviolet rays).

[0141] In S1060, a protective member PM may be formed. According to one or more embodiments, in step S1060, the protective member PM may be formed around the edge of the display panel DP (e.g., around the edge of the display panel DP). As an example, the protective member PM may be formed in a closed loop shape between the display panel DP and the receiving member BC. For example, the protective member PM may be formed around the outside of the display panel DP (e.g., around the outside of the display panel DP) along the first corner edge CE1, the second corner edge CE2, the third corner edge CE3, and the fourth corner edge CE4 and the first side edge SE1, the second side edge SE2, the third side edge SE3, and the fourth side edge SE4. Therefore, the impact mitigation member SRM may be at least partially located between the protective member PM and the display panel DP.

[0142] As described above, by incorporating the shock mitigation member SRM on at least one of the edges of the display panel DP, the shock mitigation member SRM can absorb external shock applied to the display panel DP together with the protective member PM. Therefore, deformation of the display panel DP can be further prevented or mitigated.

[0143] According to one or more embodiments of the present disclosure, a display device with improved display quality is provided.

[0144] The effects, aspects, and features according to the embodiments of the present disclosure are not limited to the above-exemplified contents, and various effects, aspects, and features are also included in this specification.

[0145] Although specific embodiments and application examples are described herein, other embodiments and modifications may be derived from the above description. Therefore, the spirit and scope of the present disclosure are not limited to these embodiments, and extend to the spirit and scope of the defined claims, various obvious modifications and equivalents.

Claims

1. A display device, wherein: The display device comprises: a display panel over the substrate and including a display area; a window layer, above the display panel, and comprising a window overlapping the display area, and a black matrix adjacent to the window; a metal layer, between the display panel and the substrate; a protection member overlapping the black matrix, the protection member covering a plurality of edges of the display panel, the plurality of edges of the display panel including a plurality of side edges and a plurality of corner edges connecting the plurality of side edges; and An impact mitigation member is between at least one of the plurality of edges of the display panel and the protective member and is adjacent to at least one of the plurality of corner edges of the display panel.

2. The display device according to claim 1, wherein: The impact mitigation member includes ink.

3. The display device according to claim 2, wherein: The ink has an elastic modulus of 100 MPa or more and 1500 MPa or less.

4. The display device according to claim 2, wherein: The ink includes urethane resin, acrylic-based resin and / or vinyl resin.

5. The display device according to claim 2, wherein: The ink includes a conductive ink.

6. The display device according to claim 1, wherein: The impact mitigation member has a closed loop shape along the plurality of edges of the display panel.

7. The display device according to claim 1, wherein: The impact mitigation member is adjacent to at least one of the plurality of side edges.

8. The display device according to claim 1, wherein: The plurality of side edges include: A first side edge and a second side edge extending in a first direction; and a third side edge and a fourth side edge extending in a second direction intersecting the first direction and being shorter than the first side edge and the second side edge, Wherein, the plurality of corner edges include: a first corner edge connecting the first side edge and the third side edge; a second corner edge connecting the third side edge and the second side edge; a third edge connecting the first side edge and the fourth side edge; and a fourth corner edge connecting the fourth side edge and the second side edge, and Wherein, the impact mitigation member is adjacent to the third corner edge and the fourth corner edge.

9. The display device according to claim 1, wherein: The impact mitigation member has a cross-section with arcuate ends.

10. The display device according to claim 1, wherein: The impact mitigation member includes a first surface contacting the at least one of the plurality of edges of the display panel and a second surface opposite to the first surface, and Wherein, the second surface has a convex shape toward the protection member.

11. The display device according to claim 1, wherein: The protection member and the impact mitigation member have elastic properties.

12. The display device according to claim 11, wherein: The protective member has a first elastic modulus, and wherein the impact mitigation member has a second elastic modulus that is less than the first elastic modulus.

13. The display device according to claim 1, wherein: The display device further includes: A protective film, between the display panel and the metal layer; a polarizing layer between the display panel and the window layer; and an adhesive layer between the polarizing layer and the window layer, Wherein, the impact mitigation member directly contacts the metal layer, the protection film, the display panel and the polarizing layer.

14. The display device according to claim 13, wherein: The impact mitigation member includes a first impact mitigation member in contact with the metal layer and a second impact mitigation member in contact with the polarizing layer, wherein the first impact mitigation member comprises a first ink, and Wherein, the second impact mitigation member includes a second ink.

15. The display device according to claim 14, wherein: The impact mitigation member includes a boundary surface between the first impact mitigation member and the second impact mitigation member.

16. The display device according to claim 13, wherein: The impact mitigation member contacts the adhesive layer and contacts a portion of the window layer adjacent to the adhesive layer.

17. A method for manufacturing a display device, wherein: The method comprises: forming a display panel including a display area over the substrate and having a plurality of edges; providing a window layer, the window layer comprising a window overlapping the display area and a black matrix adjacent to the window above the display panel; forming a protection member, the protection member overlapping the black matrix and covering the plurality of edges of the display panel; and An impact mitigation member is formed at at least one of the multiple edges of the display panel, the multiple edges of the display panel include multiple side edges and multiple corner edges connecting the multiple side edges, the impact mitigation member is located between the at least one of the multiple edges of the display panel and the protective member, and the impact mitigation member is adjacent to at least one of the multiple corner edges of the display panel.

18. The method according to claim 17, wherein: Forming the impact mitigation member includes applying ink to at least one of the plurality of edges of the display panel using a nozzle.

19. The method according to claim 18, wherein: The method further includes curing the ink before forming the protection member at the at least one of the plurality of edges of the display panel.

20. The method according to claim 17, wherein: The method further comprises: providing a metal layer between the display panel and the substrate; and providing a polarizing layer between the display panel and the window, Wherein, forming the impact mitigation member comprises: applying a first ink to contact the metal layer; and A second ink is applied to contact the polarizing layer.

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