Display device

Abstract

A display device according to embodiments of the present disclosure may include a bendable display panel having a plurality of subpixels arranged thereon, a support member overlapping with at least a portion of the display panel, a first attachment member attaching at least a portion of the display panel and at least a portion of the support member, and a coating layer overlapping with at least a portion of the display panel and disposed on at least a portion of the side of the support member.

Description

Technology Field

[0001] The embodiments of the present disclosure relate to a display device. Background Technology

[0002] As we enter the information age, the field of displays, which visually represent electrical information signals, has developed rapidly. In response to this, various display devices with excellent performance characteristics such as thinness, lightness, and low power consumption are being developed. Specific examples of such display devices include Liquid Crystal Displays (LCDs), Plasma Display Panel Devices (PDPs), Field Emission Display Devices (FEDs), and Organic Light Emitting Display Devices (OLEDs).

[0003] Various components are mounted in display devices. Accordingly, various arrangement structures are being developed to protect these various components. The problem to be solved

[0004] Embodiments of the present disclosure may provide a display device that bends a display panel to apply a narrow bezel.

[0005] Embodiments of the present disclosure may provide a display device comprising a coating layer that disperses stress generated by bending a display panel.

[0006] The problems of the embodiments of the present disclosure are not limited to those mentioned in this specification, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] A display device according to embodiments of the present disclosure may include a bendable display panel having a plurality of subpixels arranged thereon, a support member overlapping with at least a portion of the display panel, a first attachment member attaching at least a portion of the display panel and at least a portion of the support member, and a coating layer overlapping with at least a portion of the display panel and disposed on at least a portion of the side of the support member. Effects of the invention

[0008] According to embodiments of the present disclosure, a display device can be provided in which a display panel is not exposed between a coating layer and a support.

[0009] According to embodiments of the present disclosure, a display device with an optimized process can be provided by preventing the coating layer from failing to cover the display panel or the coating layer from being disposed on the upper surface of the support.

[0010] The effects of the embodiments of the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0011] The content of this disclosure will be more fully understood from the detailed description and accompanying drawings provided below, which are provided solely for illustrative purposes and are not intended to limit the content of this disclosure. FIG. 1 is a system diagram of a display device according to various embodiments of the present disclosure. FIG. 2 is a plan view of an unbent display device according to various embodiments of the present disclosure. FIG. 3 is a cross-sectional view of a bent display device according to various embodiments of the present disclosure. FIG. 4 is a cross-sectional view showing a first substrate, a display panel, a first attachment part, a support part, and a coating layer not in contact with the support part according to various embodiments of the present disclosure. FIG. 5 is a cross-sectional view showing a first substrate, a display panel, a first coating layer, a second coating layer, and a support according to various embodiments of the present disclosure. FIG. 6 is a cross-sectional view of a display device in which at least a portion of a display panel according to various embodiments of the present disclosure is not covered by a coating layer. FIG. 7 is a plan view showing the wiring of a display device disposed between a polarizing layer and a support in a state without a coating layer according to various embodiments of the present disclosure. FIG. 8 is a cross-sectional view showing a first substrate, a display panel, a first attachment part, a support part, and a coating layer in contact with the side and top surfaces of the support part according to various embodiments of the present disclosure. FIG. 9 is a cross-sectional view showing a first substrate, a display panel, a first attachment part, a support part, and at least a portion of the side of the support part, at least a portion of the lower surface of the support part, and a coating layer in contact with the side of the first attachment part according to various embodiments of the present disclosure. Specific details for implementing the invention

[0012] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the exemplary drawings. In assigning reference numerals to the components of each drawing, the same components may have the same reference numeral as much as possible, even if they are shown in different drawings. Furthermore, in describing the present disclosure, if it is determined that a detailed description of related known components or functions may obscure the essence of the present disclosure, such detailed description may be omitted. Where terms such as "comprising," "having," or "consisting of" are used in this specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it may include a plural unless there is a special explicit description otherwise.

[0013] Additionally, terms such as first, second, A, B, (a), (b), etc., may be used to describe the components of the present disclosure. These terms are used merely to distinguish the components from other components, and the nature, order, sequence, or number of the components are not limited by such terms.

[0014] In describing the positional relationship of components, where it is stated that two or more components are "connected," "combined," or "joined," it should be understood that while the two or more components may be directly "connected," "combined," or "joined," they may also be "connected," "combined," or "joined" with other components "intervened." Here, the other components may be included in one or more of the two or more components that are "connected," "combined," or "joined" with one another.

[0015] In describing the temporal flow relationship regarding components, methods of operation, or methods of production, for example, when the temporal or sequential relationship is described using "after," "following," "next," or "before," it may include cases where the relationship is not continuous unless "immediately" or "directly" is used.

[0016] Meanwhile, where numerical values ​​or corresponding information regarding a component (e.g., levels, etc.) are mentioned, even without separate explicit notation, the numerical values ​​or corresponding information may be interpreted as including a range of error that may occur due to various factors (e.g., process factors, internal or external shocks, noise, etc.).

[0017] Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the attached drawings.

[0018] FIG. 1 is a system diagram of a display device (100) according to various embodiments of the present disclosure.

[0019] Referring to FIG. 1, a display device (100) according to one embodiment of the present disclosure may include a display panel (110) in which a plurality of gate lines (GL) and data lines (DL) are connected and a plurality of subpixels (SP) are arranged in a matrix form, a gate driving circuit (120) for driving a plurality of gate lines (GL), a data driving circuit (130) for supplying a data voltage through a plurality of data lines (DL), a controller (140) for controlling the gate driving circuit (120) and the data driving circuit (130), and a power management circuit (150).

[0020] The display panel (110) displays an image based on a scan signal and a light emission control signal transmitted from a gate driving circuit (120) through a plurality of gate lines (GL) and a data voltage transmitted from a data driving circuit (130) through a plurality of data lines (DL).

[0021] In the case of a liquid crystal display, the display panel (110) includes a liquid crystal layer formed between two substrates and may operate in any known mode, such as a TN (Twisted Nematic) mode, a VA (Vertical Alignment) mode, an IPS (In Plane Switching) mode, or an FFS (Fringe Field Switching) mode. On the other hand, in the case of an organic light-emitting display, the display panel (110) may be implemented in a top emission method, a bottom emission method, or a dual emission method.

[0022] A display panel (110) may have a plurality of pixels arranged in a matrix form, and each pixel may consist of subpixels (SP) of different colors, for example, a white subpixel, a red subpixel, a green subpixel, and a blue subpixel, and each subpixel (SP) may be defined by a plurality of data lines (DL) and a plurality of gate lines (GL).

[0023] A single subpixel (SP) may include a thin film transistor (TFT) formed in the region where a data line (DL) and a gate line (GL) intersect, a light-emitting element such as an organic light-emitting diode that charges the data voltage, and a storage capacitor electrically connected to the light-emitting element to maintain the voltage.

[0024] The gate driving circuit (120) is controlled by a controller (140) and controls the driving timing for a plurality of subpixels (SP) by sequentially outputting scan signals to a plurality of gate lines (GL) arranged on a display panel (110).

[0025] At this time, the gate driving circuit (120) may include one or more gate driving integrated circuits (GDICs), and depending on the driving method, it may be located on only one side of the display panel (110) or on both sides. Alternatively, the gate driving circuit (120) may be embedded in the bezel area of ​​the display panel (110) and implemented in the form of a GIP (Gate In Panel).

[0026] The data driving circuit (130) receives image data (DATA) from the controller (140) and converts the received image data (DATA) into an analog data voltage. Then, by outputting the data voltage to each data line (DL) in accordance with the timing at which a scan signal is applied through the gate line (GL), each subpixel (SP) connected to the data line (DL) displays a light emission signal of brightness corresponding to the data voltage.

[0027] Likewise, the data driving circuit (130) may include one or more source driving integrated circuits (SDICs), and the source driving integrated circuits (SDICs) may be connected to the bonding pads of the display panel (110) by a tape-automated bonding (TAB) method or a chip-on-glass (COG) method, or may be placed directly on the display panel (110).

[0028] The controller (140) supplies various control signals to the gate driving circuit (120) and the data driving circuit (130) and controls the operation of the gate driving circuit (120) and the data driving circuit (130). That is, the controller (140) controls the gate driving circuit (120) to output a scan signal according to the timing implemented in each frame, and on the other hand, transmits image data (DATA) received from the outside to the data driving circuit (130).

[0029] At this time, the controller (140) receives various timing signals including a vertical synchronization signal (Vsync), a horizontal synchronization signal (Hsync), a data enable signal (Data Enable; DE), a main clock (MCLK), etc., along with video data (DATA) from an external host system (160).

[0030] The host system (160) can be any one of a TV (Television) system, a set-top box, a navigation system, a personal computer (PC), a home theater system, a mobile device, or a wearable device.

[0031] Accordingly, the controller (140) generates a control signal using various timing signals received from the host system (160) and transmits it to the gate driving circuit (120) and the data driving circuit (130).

[0032] For example, the controller (140) outputs various gate control signals, including a gate start pulse (GSP), a gate clock (GCLK), and a gate output enable signal (GOE), to control the gate driving circuit (120).

[0033] Additionally, the controller (140) outputs various data control signals, including a source start pulse (SSP), a source sampling clock (SCLK), and a source output enable signal (SOE), to control the data driving circuit (130).

[0034] Such a display device (100) may include a power management circuit (150) that supplies various voltages or currents to a display panel (110), a gate driving circuit (120), a data driving circuit (130), etc., or controls various voltages or currents to be supplied.

[0035] The power management circuit (150) adjusts the DC input voltage (Vin) supplied from the host system (160) to generate the power required to drive the display panel (110), the gate driving circuit (120), and the data driving circuit (130).

[0036] For example, the display device (100) may include a touch driving circuit that supplies a touch driving signal to a display panel (110) and detects a touch sensing signal from the display panel (110), and a touch sensing circuit that senses whether a user touches the display panel (110) and the location of the touch based on the touch sensing signal detected by the touch driving circuit. The touch driving circuit may be implemented as one or more integrated circuits. The display panel (110) may include a touch driving line for connecting the touch driving circuit and a touch electrode. The touch driving line may be referred to as a touch routing wire.

[0037] For example, the display device (100) may include a touch driving connection line electrically connected to a touch driving line. The touch driving connection line may be bonded to or electrically connected to a touch driving circuit.

[0038] For example, the touch driving circuit can be implemented by being integrated into other integrated circuits (e.g., data driving circuit (130), controller (140)).

[0039] These display devices (100) can be of various types, such as liquid crystal displays, organic light-emitting displays, and plasma display panels.

[0040] FIG. 2 is a plan view of an unbent display device (100) according to various embodiments of the present disclosure.

[0041] Descriptions of FIG. 2 that overlap with descriptions in FIG. 1 may be omitted.

[0042] Referring to FIG. 2, the display device (100) may include a polarizer (POL), a micro coating layer (MCL), a support (SUS), a data driving circuit (130), a shield tape (200), a printed circuit board (PCB), a shield can (230), and a protective film (250).

[0043] The coating layer (MCL) can distribute stress resulting from the bending of the display panel (110) to other components (e.g., a support member (SUS)). Accordingly, cracking problems of the display panel (110) can be minimized. The coating layer (MCL) may be referred to as a neutral plane. The coating layer (MCL) may contain a resin component.

[0044] The polarization layer (POL) can prevent light incident from the outside and entering the interior of the display panel (110) from being reflected out. The polarization layer (POL) can prevent the reflection of incident light, thereby preventing the problem of reduced outdoor visibility of the display panel (110).

[0045] The support member (SUS) can prevent cracking of the display panel (110) by dispersing the stress generated by the bending of the display panel (110). The support member (SUS) may include stainless steel material.

[0046] The shield tape (200) may overlap with at least a portion of the support (SUS), the data driving circuit (130), and the printed circuit board (PCB). For example, the shield tape (200) may be attached to at least a portion of the support (SUS), the data driving circuit (130), and the printed circuit board (PCB). Accordingly, the components to which the shield tape (200) is attached (e.g., the support (SUS), the data driving circuit (130), the printed circuit board (PCB)) may be protected from external electromagnetic interference or shock. For example, if the touch driving circuit is implemented by integrating it into the data driving circuit (130), the shield tape (200) may overlap with the touch driving circuit.

[0047] The printed circuit board (PCB) can mount lines for driving the display device (100), integrated circuits (e.g., controller (140), power management circuit (150)). The printed circuit board (PCB) may be a flexible board. The printed circuit board (PCB) may be bent.

[0048] The shield can (230) can protect integrated circuits from external shocks and short circuits. For example, the shield can (230) may overlap with at least one integrated circuit among the controller (140), power management circuit (150), or touch driving circuit. Alternatively, the shield can (230) may cover at least one integrated circuit among the controller (140), power management circuit (150), or touch driving circuit.

[0049] The protective film (250) can cover the printed circuit board (PCB). Accordingly, the printed circuit board (PCB) can be protected from external shocks and electromagnetic interference.

[0050] A bent display device (100) may be exemplified below.

[0051] FIG. 3 is a cross-sectional view of a bent display device (100) according to various embodiments of the present disclosure.

[0052] Descriptions of the components of Fig. 3 that overlap with descriptions in Fig. 2 may be omitted.

[0053] Referring to FIG. 3, the display device (100) may include a cover glass (CG), an optical clear adhesive (OCA), a polarizing layer (POL), a buffer (TUF), a first attachment part (PSA1), a second attachment part (PSA2), a third attachment part (PSA3), a display panel (110), a first substrate (BP1), a second substrate (BP2), a metal plate (MP), a support part (SUS), and a coating layer (MCL).

[0054] The cover glass (CG) can cover the polarizing layer (POL) and the display panel (110). The cover glass (CG) can be positioned at the top of the display device (100). Accordingly, the display panel (110) can be protected from external impact. The cover glass (CG) can be formed from a plastic material having light-transmitting properties or from a glass component.

[0055] The optical adhesive (OCA) can attach the polarizing layer (POL) and the cover glass (CG). The optical adhesive (OCA) may be formed of a transparent material to prevent light distortion. The length of the optical adhesive (OCA) may be longer than the length of the polarizing layer (POL). Accordingly, the entire polarizing layer (POL) can be attached to the cover glass (CG). In other words, the optical adhesive (OCA) can leave a margin related to the placement of the polarizing layer (POL).

[0056] A buffer (TUF) may be placed in an area adjacent to the optical adhesive (OCA), the polarizing layer (POL), and the coating layer (MCL). As previously mentioned, a space may be created between the optical adhesive (OCA), the polarizing layer (POL), and the coating layer (MCL) depending on the length of the optical adhesive (OCA) being longer than that of the polarizing layer (POL). The buffer (TUF) can prevent stress or foreign substance intrusion into the created space. The buffer (TUF) may contain a resin component.

[0057] The third attachment part (PSA3) can overlap the polarization layer (POL) and the display panel (110). For example, the third attachment part (PSA3) can attach the display panel (110) and the polarization layer (POL).

[0058] The second substrate (BP2) can be superimposed on the display panel (110). The second substrate (BP2) can assist in the rigidity of the display panel (110). For example, the second substrate (BP2) can be superimposed on the polarization layer (POL).

[0059] The metal plate (MP) can be overlapped with the second substrate (BP2) and the display panel (110). The metal plate (MP) can assist in the rigidity of the second substrate (BP2) and the display panel (110).

[0060] The second attachment portion (PSA2) may overlap with the first substrate (BP1) and the metal plate (MP). For example, the second attachment portion (PSA2) may attach the first substrate (BP1) and the metal plate (MP). As the second attachment portion (PSA2) attaches the first substrate (BP1) which overlaps with the metal plate (MP) and the bent display panel (110), the stress generated by the bending may be distributed to other components (e.g., the metal plate (MP), the second substrate (BP2)).

[0061] The first substrate (BP1) can be overlapped with the bent display panel (110).

[0062] The first attachment part (PSA1) may overlap with the first substrate (BP1) and the support part (SUS). For example, the first attachment part (PSA1) may attach the first substrate (BP1) and the support part (SUS).

[0063] The first attachment portion (PSA1) and the second attachment portion (PSA2) can overlap. Accordingly, stress generated by the bending of the display panel (110) can be distributed to the first substrate (BP1), the metal plate (MP), and the second substrate (BP2).

[0064] The coating layer (MCL) overlaps with at least a portion of the display panel (110) and may be disposed on the side of the support member (SUS) and the side of the first attachment member (PSA1). The coating layer (MCL) may be bendable. The coating layer (MCL) may be bent to a curvature corresponding to the bending curvature of the display panel (110).

[0065] For example, the first side of the coating layer (MCL) may be in contact with the side of the polarization layer (POL), and the second side of the coating layer (MCL) may be in contact with the side of the support member (SUS).

[0066] FIG. 4 is a cross-sectional view showing a first substrate (BP1), a display panel (110), a first attachment part (PSA1), a support part (SUS), and a coating layer (MCL) that does not come into contact with the support part (SUS) according to various embodiments of the present disclosure.

[0067] Referring to FIG. 4, the coating layer (MCL) may not come into contact with the support member (SUS) and the first attachment member (PSA1).

[0068] Accordingly, at least a portion of the display panel (110) may not be covered by the coating layer (MCL).

[0069] For example, if the coating layer (MCL) does not cover at least a portion of the display panel (110), corrosion of the wiring within the display panel (110) may occur.

[0070] For example, if the coating layer (MCL) does not come into contact with the side of the support (SUS), stress on the display panel (110) may not be transmitted. If stress on the display panel (110) is not transmitted, cracks may occur in the display panel (110).

[0071] A method for preventing cracks in the display panel (110) and corrosion of the wiring may be exemplified below.

[0072] FIG. 5 is a cross-sectional view showing a first substrate (BP1), a display panel (110), a first coating layer (MCL1), a second coating layer (MCL2), and a support (SUS) according to various embodiments of the present disclosure.

[0073] Descriptions of FIG. 5 that overlap with descriptions in FIG. 3 and FIG. 4 may be omitted. The cross-section of FIG. 5 may be a cross-section of a bending lower region where a touch driving connection line is placed.

[0074] The power wiring, signal wiring, and touch wiring of the display area are connected to the connection wiring of the bending section and pass through the bending section. After passing through the bending section, they can be connected again to the data connection line, driving voltage connection line, and touch driving connection line to be connected to the data driving circuit (130) and the printed circuit board (PCB).

[0075] The cross-section of FIG. 5 may be a cross-section of the area connected to the data connection line, driving voltage connection line and touch driving connection line after passing through the bending lower region.

[0076] Referring to FIG. 5, the display device (100) may include a first substrate (BP1), a display panel (110), a first coating layer (MCL1), a second coating layer (MCL2), and a support (SUS).

[0077] The first substrate (BP1) may be a single layer or a multilayer. If the first substrate (BP1) is a multilayer, the first substrate (BP1) may include an intermediate substrate layer. The intermediate substrate layer may be an inorganic insulating layer, but the embodiments of this specification are not limited thereto. The intermediate substrate layer may block interference with transistors disposed on the substrate.

[0078] The display panel (110) may include a buffer layer (BUF), a gate insulating layer (GI), an interlayer insulating layer (ILD), a first flattening layer (PLN1), a second flattening layer (PLN2), a first source drain metal (SD1), a second source drain metal (SD2), a bank layer (BANK), a touch buffer layer (T-BUF), a first touch metal layer (TM1), a touch insulating layer (T-ILD), a second touch metal layer (TM2), and a touch flattening layer (T-PLN).

[0079] The buffer layer (BUF), gate insulating layer (GI), and interlayer insulating layer (ILD) can protect or insulate a thin-film transistor within a display area in which an image is displayed in the display panel (110). The buffer layer (BUF), gate insulating layer (GI), and interlayer insulating layer (ILD) may include inorganic materials. For example, the buffer layer (BUF), gate insulating layer (GI), and interlayer insulating layer (ILD) may be formed of inorganic materials.

[0080] For example, the buffer layer (BUF) can protect other components from moisture penetrating from the substrate.

[0081] For example, the gate insulating layer (GI) may be a layer on which the gate electrode of a thin-film transistor is placed within a display area.

[0082] For example, an interlayer insulating layer (ILD) can be placed on the gate electrode of a low-temperature polycrystalline silicon (LTPS) or oxide semiconductor transistor within the display area.

[0083] The first flattening layer (PLN1) can be placed between the first source drain metal (SD1) and the second source drain metal (SD1) within the display area.

[0084] The second flattening layer (PLN2) can be disposed on the second source drain metal (SD2). The second flattening layer (PLN2) can protect the second source drain metal (SD2).

[0085] The bank layer may be a layer that defines a light-emitting region within the display area.

[0086] For example, one of the first source drain metal (SD1) and the second source drain metal (SD2) may include a data connection line for supplying a data voltage, and the other may include a driving voltage connection line for supplying a driving voltage.

[0087] For example, the data connection line can be electrically connected to the data line (DL). The driving voltage connection line can be electrically connected to the driving voltage line within the display area. For example, the data connection line can be electrically connected to the data driving circuit (130). The driving voltage connection line can be electrically connected to the power management circuit (150).

[0088] In other words, the first source drain metal (SD1) and the second source drain metal (SD2) may include or form wiring for the purpose of driving thin-film transistors within the display area.

[0089] A touch buffer layer (T-BUF) may be disposed on the bank layer (BANK) and the first planarization layer (PLN1). For example, the touch buffer layer (T-BUF) may be disposed on a thin-film transistor within the display area.

[0090] A first touch metal layer (TM1) can be disposed on a touch buffer layer (T-BUF).

[0091] A touch insulating layer (T-ILD) may be disposed on the first touch metal layer (TM1). For example, the touch insulating layer (T-ILD) may be disposed between the sensor metal layer and the bridge metal layer. For example, the touch insulating layer (T-ILD) may be an inorganic film.

[0092] A second touch metal layer (TM2) can be disposed on the touch insulating layer (T-ILD).

[0093] For example, one of the first touch metal layer (TM1) and the second touch metal layer (TM2) may be a sensor metal layer and the other may be a bridge metal layer. The sensor metal layer and the bridge metal layer may be referred to as touch driving connection lines. Alternatively, the sensor metal layer and the bridge metal layer may include touch driving connection lines.

[0094] A touch flattening layer (T-PLN) may be disposed on the second touch metal layer (TM2). The touch flattening layer (T-PLN) can protect the first touch metal layer (TM1) and the second touch metal layer (TM2). In other words, the touch flattening layer (T-PLN) may be disposed on the touch driving connection line.

[0095] The coating layer (MCL) may include a first coating layer (MCL1) and a second coating layer (MCL2). The first coating layer (MCL1) and the second coating layer (MCL2) may be disposed on the touch flattening layer (T-PLN). In other words, the coating layer (MCL) overlaps with the touch driving connection line, data connection line, and driving voltage connection line, and can protect against external shocks.

[0096] The first coating layer (MCL1) may overlap with the bank (BANK) and the first planarization layer (PNL1) placed in the bending lower region, but may not overlap with the second coating layer (MCL2). The touch electrodes on the upper part of the first planarization layer (PNL1) and the bank (BNK) may be connected to a touch pad portion and electrically connected to a printed circuit board (PCB). The touch pad portion may include a gate electrode or a source-drain electrode forming a transistor in the touch electrode and display region.

[0097] A touch electrode formed as a touch pad and a gate electrode or source-drain electrode can be connected through a contact hole. In this case, if there is a large insulating layer between the touch electrode and the gate electrode or source-drain electrode, the depth of the contact hole may increase. As the depth of the contact hole increases, it may be difficult to connect the touch electrode and the gate electrode or source-drain electrode.

[0098] As a result, the intermediate insulating layer (e.g., bank layer (BANK), first flattening layer (PLN1)) may be interrupted before the touch pad portion. For example, the bank layer (BANK) or the first flattening layer (PLN1) may be placed in at least a portion of the lower bending area.

[0099] For example, the first coating layer (MCL1) may not come into contact with the support member (SUS) at one end. The other end of the first coating layer (MCL1) may come into contact with the polarization layer (POL).

[0100] For example, the second coating layer (MCL2) may come into contact with the support member (SUS). For example, the second coating layer (MCL2) may be disposed on at least a portion of the side of the support member (SUS), at least a portion of the lower surface of the support member (SUS), and on the side of the first attachment member (PSA1). A detailed explanation thereof may be illustrated in the description within FIG. 9.

[0101] For example, by applying the first coating layer (MCL1) first and then applying the second coating layer (MCL2), the coating layer (MCL) around the support member (SUS) can be applied precisely. Accordingly, the problem of the coating layer (MCL) failing to cover at least a portion of the display panel (110) can be minimized. The second coating layer (MCL2) can be positioned to partially overlap with the first coating layer (MCL1) so that the coating layer can be sufficiently applied to the upper surface of the display panel (110).

[0102] FIG. 6 is a cross-sectional view of a display device (100) in which at least a portion of a display panel (110) according to various embodiments of the present disclosure is not covered by a coating layer (MCL).

[0103] Descriptions of Fig. 6 that overlap with descriptions in Fig. 5 may be omitted.

[0104] Referring to FIG. 6, the first touch metal layer (TM1), the second touch metal layer (TM2), and the touch insulating layer (T-ILD) may be corroded in the parts where the coating layer (MCL) does not cover the display panel (110) or where the coating layer (MCL) is not sufficiently applied.

[0105] As a result, the touch drive connection line may corrode or malfunction.

[0106] For example, the display panel (110) may not be protected from external impact in parts where the coating layer (MCL) does not cover the display panel (110) or in parts where the coating layer (MCL) is applied more thinly than other parts.

[0107] For example, as the coating layer (MCL) is not connected to the support (SUS), the stress generated by the bending of the display panel (110) may not be distributed to the support (SUS). Consequently, cracks may occur in the display panel (110).

[0108] For example, if a crack occurs in the display panel (110), corrosion may also occur in the first source drain metal (SD1) and the second source drain metal (SD2).

[0109] Below, lines of the display device (100) can be exemplified in a state without a coating layer (MCL).

[0110] FIG. 7 is a plan view showing the wiring of a display device (100) arranged between a polarizing layer (POL) and a support (SUS) in the absence of a coating layer (MCL) according to various embodiments of the present disclosure.

[0111] Referring to FIG. 7, the display device (100) may include a display panel (110) and a support member (SUS).

[0112] The display panel (110) may include a plurality of first wires (TX) disposed in a first area (A) and a plurality of second wires (RX) disposed in a second area (B). Accordingly, a short circuit between the first wires (TX) and the second wires (RX) to which different voltages are applied can be prevented.

[0113] The first wiring (TX) may include a touch driving connection line for controlling the touch driving of the display panel (110).

[0114] The second wiring (RX) may include at least one line of a data connection line for supplying a data voltage to a subpixel (SP) of the display panel (110) or a driving voltage connection line for supplying a driving voltage to the display panel (110).

[0115] High voltage may be applied to the touch drive connection line. When high voltage is applied, it may be susceptible to corrosion or defects. If at least a portion of the display panel (110) is not covered by a coating layer (MCL), the touch drive connection line may corrode. If the touch drive connection line corrodes, a defect in touch drive may occur.

[0116] For example, if at least a portion of the display panel (110) is not covered by the coating layer (MCL), the data connection line or the driving voltage connection line may corrode. If the data connection line or the driving voltage connection line corrodes, a defect may occur in the image display of the display panel (110).

[0117] In the following, a display device (100) having a structure in which a display panel (110) is covered may be exemplified.

[0118] FIG. 8 is a cross-sectional view showing a first substrate (BP1), a display panel (110), a first attachment part (PSA1), a support part (SUS), and a coating layer (MCL) in contact with the side and top surfaces of the support part (SUS) according to various embodiments of the present disclosure.

[0119] Descriptions of FIG. 8 that overlap with descriptions in FIG. 4 to 6 may be omitted.

[0120] Referring to FIG. 8, for example, when the coating layer (MCL) covers the upper surface of the support (SUS), there may be difficulties in fastening other components of the display device (100).

[0121] A structure for accurately applying a coating layer (MCL) can be exemplified below.

[0122] FIG. 9 is a cross-sectional view showing a first substrate (BP1), a display panel (110), a first attachment part (PSA1), a support part (SUS), and at least a portion of the side of the support part (SUS), at least a portion of the lower surface of the support part (SUS), and a coating layer (MCL) in contact with the side of the first attachment part (PSA1) according to various embodiments of the present disclosure.

[0123] Descriptions within FIG. 9 that overlap with descriptions within FIG. 4 to FIG. 8 may be omitted.

[0124] Referring to FIG. 9, the first attachment part (PSA1) can attach at least a portion of the support part (SUS) to the display panel (110).

[0125] For example, the first width (W1) of the support member (SUS) may be longer than the second width (W2) of the first attachment member (PSA1). Accordingly, the coating layer (MCL) may come into contact with at least a portion of the side of the support member (SUS), at least a portion of the lower surface of the support member (SUS), and the side of the first attachment member (PSA1).

[0126] The first attachment portion (PSA1) can be formed by a pull-pack process. For example, the first attachment portion (PSA1) can be formed with the same width as the support portion (SUS), and then at least a portion of the first attachment portion (PSA1) can be etched or removed. Accordingly, the first attachment portion (PSA1) can be precisely adjusted to a desired width. In other words, when the first attachment portion (PSA1) is precisely adjusted, the space for placing the coating layer (MCL) can be precisely adjusted.

[0127] As the first width (W1) is longer than the second width (W2), a portion of the coating layer (MCL) can be inserted below the support member (SUS). As a portion of the coating layer (MCL) is inserted below, the phenomenon of the coating layer (MCL) covering the upper surface of the support member (SUS) can be minimized.

[0128] In other words, as an extra coating layer (MCL) is inserted into an adjacent area of ​​the display panel (110), the support member (SUS), and the first attachment member (PSA1), the phenomenon in which the coating layer (MCL) fails to cover at least a part of the display panel (110) or the coating layer (MCL) covers the upper surface of the support member (SUS) can be minimized.

[0129] Accordingly, the phenomenon in which the coating layer (MCL) on the upper surface of the support member (SUS) interferes with the connection of other components, causes defects in the wiring within the display device (100), or causes cracks in the display panel (110) can be minimized.

[0130] A display device according to embodiments of the present disclosure can be described as follows.

[0131] The display device may include a bendable display panel having a plurality of subpixels arranged thereon, a support member overlapping with at least a portion of the display panel, a first attachment member attaching at least a portion of the display panel and at least a portion of the support member, and a coating layer overlapping with at least a portion of the display panel and disposed on at least a portion of the side of the support member.

[0132] The width of the first attachment part may be shorter than the width of the support part.

[0133] The coating layer may be in contact with at least a portion of the lower surface of the support member and the side of the first attachment member.

[0134] The coating layer is bendable and can be bent to a curvature corresponding to the bending curvature of the display panel.

[0135] The coating layer may include a first coating layer and a second coating layer.

[0136] The first coating layer may not come into contact with the support.

[0137] The second coating layer may be disposed on at least a portion of the side of the support, at least a portion of the lower surface of the support, and on the side of the first attachment portion.

[0138] The display panel may include a touch driving connection line for controlling the touch driving of the display panel, and a touch flattening layer disposed on the touch driving connection line.

[0139] The coating layer can be placed on the touch planarization layer.

[0140] The display panel may include a data connection line that supplies a data voltage to at least one of a plurality of subpixels.

[0141] The coating layer may overlap with at least a portion of the data connection line.

[0142] The display panel may include a driving voltage connection line that supplies a driving voltage to the display panel.

[0143] The coating layer may overlap with at least a portion of the driving voltage connection line.

[0144] It may include a first area where a touch driving connection line is arranged, and a second area where a data connection line and a driving voltage connection line are arranged.

[0145] The display device may include a data driving circuit that supplies a data voltage, a controller that controls the data driving circuit, a bendable printed circuit board on which the controller is placed, a support, a shield tape that overlaps with at least a portion of the data driving circuit and the printed circuit board, and a shield can that overlaps with the controller.

[0146] The display device may include a cover glass that protects the display panel, and a polarizing layer that overlaps with the cover glass.

[0147] The first side of the coating layer can be in contact with the side of the support.

[0148] The second side of the coating layer can be in contact with the side of the polarization layer.

[0149] It may include an optical adhesive portion for attaching a cover glass and a polarizing layer.

[0150] The length of the optical adhesive can be longer than the length of the polarization layer.

[0151] The display device may include a polarizing layer, an optical adhesive portion, and a buffer portion disposed in an adjacent region of a coating layer.

[0152] It may further include a second substrate overlapping with the polarization layer, and a second attachment portion overlapping with the second substrate.

[0153] The second attachment part may overlap with the first attachment part and the support part.

[0154] It may include a first substrate disposed between a first attachment part and a second attachment part.

[0155] The first substrate and the display panel can be overlapped.

[0156] The foregoing description is merely an illustrative explanation of the technical concept of the present disclosure, and those skilled in the art to which the present disclosure pertains may make various modifications and variations within the scope of the essential characteristics of the present disclosure. Furthermore, the embodiments disclosed in the present disclosure are intended to explain, not limit, the technical concept of the present disclosure, and thus the scope of the technical concept of the present disclosure is not limited by these embodiments. Explanation of the symbols

[0157] 100: Display device 110: Display panel 120: Gate driving circuit 130: Data driving circuit 140: Controller 150: Power management circuit 200: Shield tape MCL: Coating layer SUS: Support PSA1: 1st attachment part PSA2: Second attachment part PSA3: Third attachment part BP1: First substrate BP2: Second substrate

Claims

Claim 1 A display device comprising: a bendable display panel having a plurality of subpixels arranged thereon; a support member overlapping with at least a portion of the display panel; a first attachment member attaching at least a portion of the display panel and at least a portion of the support member; and a coating layer overlapping with at least a portion of the display panel and disposed on at least a portion of the side of the support member. Claim 2 A display device according to claim 1, wherein the width of the first attachment part is shorter than the width of the support part. Claim 3 In claim 2, the coating layer is in contact with at least a portion of the lower surface of the support member and the side of the first attachment member, a display device. Claim 4 In paragraph 3, the coating layer is bendable and is bent to a curvature corresponding to the bending curvature of the display panel, a display device. Claim 5 A display device according to claim 1, wherein the coating layer comprises a first coating layer and a second coating layer, the first coating layer does not contact the support member, and the second coating layer is disposed on at least a portion of the side of the support member, at least a portion of the lower surface of the support member, and on the side of the first attachment member. Claim 6 A display device according to claim 1, wherein the display panel comprises a touch driving connection line for controlling touch driving of the display panel and a touch flattening layer disposed on the touch driving connection line, and the coating layer disposed on the touch flattening layer. Claim 7 A display device according to claim 6, wherein the display panel includes a data connection line for supplying a data voltage to at least one of the plurality of subpixels, and the coating layer overlaps with at least a portion of the data connection line. Claim 8 In claim 7, the display panel includes a driving voltage connection line for supplying a driving voltage to the display panel, and the coating layer overlaps with at least a portion of the driving voltage connection line, a display device. Claim 9 A display device according to claim 8, comprising a first area where the touch driving connection line is arranged, and a second area where the data connection line and the driving voltage connection line are arranged. Claim 10 A display device according to claim 1, comprising: a data driving circuit for supplying a data voltage; a controller for controlling the data driving circuit; a bendable printed circuit board on which the controller is disposed; a shield tape overlapping with at least a portion of the support, the data driving circuit, and the printed circuit board; and a shield can overlapping with the controller. Claim 11 A display device according to claim 1, comprising: a cover glass protecting the display panel; and a polarizing layer overlapping the cover glass, wherein a first side of the coating layer is in contact with a side of the support member and a second side of the coating layer is in contact with a side of the polarizing layer. Claim 12 A display device according to claim 11, comprising an optical adhesive portion for attaching the cover glass and the polarizing layer, wherein the length of the optical adhesive portion is longer than the length of the polarizing layer. Claim 13 A display device according to claim 12, comprising a buffer portion disposed in an adjacent region to the polarizing layer, the optical adhesive portion, and the coating layer. Claim 14 A display device according to claim 11, further comprising: a second substrate overlapping with the polarizing layer; and a second attachment portion overlapping with the second substrate, wherein the second attachment portion overlaps with the first attachment portion and the support portion. Claim 15 A display device according to claim 14, comprising a first substrate disposed between the first attachment part and the second attachment part, wherein the first substrate and the display panel overlap.

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