Input sensing device and display device including the same

Abstract

An input sensing device and a display device including the same are provided. The input sensing device includes: an input sensing panel, a flexible circuit board, a first lower protective film, a second lower protective film, and a reinforcing member, wherein the flexible circuit board is connected to a first side of the input sensing panel; the first lower protective film is below the input sensing panel; the second lower protective film is below the first lower protective film; the reinforcing member is between a lower portion of the flexible circuit board and a second side of the input sensing panel adjacent to the first side, and the reinforcing member covers a portion of the lower portion of the flexible circuit board. A side of any one of the first lower protective film and the second lower protective film facing the reinforcing member is separated from the reinforcing member.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2019-0055747, filed on May 13, 2019, which is hereby incorporated by reference in its entirety. Technical Field

[0003] Here, the present disclosure relates to a display device, and more particularly, to a display device including an input sensing unit (eg, an input sensor or an input sensing device). Background Art

[0004] Multimedia electronic devices such as televisions, mobile phones, tablet computers, navigation systems, game consoles, etc. include display devices for displaying images. These display devices may include a display module for displaying images and an input sensing unit (e.g., an input sensor or an input sensing device) that implements a touch-based input method in addition to other input methods such as buttons, keyboards, and mice to allow users to intuitively and conveniently input information or commands.

[0005] Generally, the input sensing unit includes an input sensing panel and a driving integrated circuit (IC), wherein a plurality of input electrodes are arranged in the input sensing panel, and the driving integrated circuit (IC) is connected to one side of the input sensing panel to drive the input electrodes. The driving integrated circuit generates a driving signal and provides the signal to the input electrode. The input electrode can provide input information corresponding to the user's input to drive the integrated circuit.

[0006] The driving integrated circuit is mounted on a flexible printed circuit board (FPCB), and one side of the flexible printed circuit board is connected to one side of the input sensing panel. The driving integrated circuit is connected to the input electrode of the input sensing panel through the flexible printed circuit board. Such a connection method is defined as a chip on film (COF) method.

[0007] Recently, there is a need for a technology capable of reducing a dead zone, which refers to a portion of a display device that does not display an image. One method for reducing the dead zone is to position a driver integrated circuit under a display panel by bending (or folding) a portion of a flexible printed circuit board. However, when a portion of the flexible printed circuit board is bent, cracks may occur in a wiring (or conductor) disposed at (e.g., in or on) the bent region.

[0008] The above information disclosed in this Background section is for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art. Summary of the invention

[0009] One or more exemplary embodiments of the present disclosure relate to an input sensing unit (eg, an input sensor or an input sensing device) that can reinforce a bending area and a display device including the input sensing unit.

[0010] One or more exemplary embodiments of the present disclosure are directed to a method for manufacturing an input sensing unit (eg, an input sensor or an input sensing device) that can reinforce a bending region.

[0011] According to an exemplary embodiment of the present invention, an input sensing device includes: an input sensing panel, a flexible circuit board, a first lower protective film, a second lower protective film, and a reinforcement member, wherein the input sensing panel includes a plurality of sensing electrodes; the flexible circuit board is connected to a first side of the input sensing panel; the first lower protective film is below the input sensing panel; the second lower protective film is below the first lower protective film; the reinforcement member is between a lower portion of the flexible circuit board and a second side of the input sensing panel adjacent to the first side, the reinforcement member covers a portion of the lower portion of the flexible circuit board. A side of any one of the first lower protective film and the second lower protective film facing the reinforcement member is spaced from the reinforcement member.

[0012] In an exemplary embodiment, the length of the second lower protective film in a direction parallel to the touch sensing surface of the input sensing panel may be shorter than the length of the first lower protective film in the direction, and a side of the second lower protective film facing the reinforcement member may be spaced apart from the reinforcement member.

[0013] In an exemplary embodiment, a thickness of the first lower protective film may be smaller than a thickness of the second lower protective film in a direction perpendicular to a touch sensing surface of the input sensing panel.

[0014] In an exemplary embodiment, a thickness of the reinforcement member at the second side of the input sensing panel may correspond to a sum of a thickness of the flexible circuit board and a thickness of the first lower protective film.

[0015] In an exemplary embodiment, a maximum thickness of the reinforcing member in the direction may be 90 μm or less.

[0016] In an exemplary embodiment, a thickness of the reinforcing member may decrease as a distance from the second side of the input sensing panel increases.

[0017] In exemplary embodiments, each of the first lower protective film and the second lower protective film may include a peelable film.

[0018] In an exemplary embodiment, the first lower protective film may include a pull tab extending from one side of the first lower protective film.

[0019] In an exemplary embodiment, a thickness of the first lower protective film may be greater than a thickness of the second lower protective film in a direction perpendicular to a touch sensing surface of the input sensing panel.

[0020] In an exemplary embodiment, the length of the first lower protective film in a direction parallel to the touch sensing surface of the input sensing panel may be shorter than the length of the second lower protective film in the direction, and a side of the first lower protective film facing the reinforcement member may be spaced apart from the reinforcement member.

[0021] In an exemplary embodiment, at the second side of the input sensing panel, the reinforcement member may include a portion overlapping a portion of the second lower protective film between the input sensing panel and the second lower protective film.

[0022] In an exemplary embodiment, the input sensing device may further include an upper protective film on the input sensing panel.

[0023] According to an exemplary embodiment of the present invention, a display device includes a display panel, a protective member, an input sensing panel, an adhesive member, a flexible circuit board, and a reinforcement member, wherein the display panel includes a plurality of pixels; the protective member is on the display panel; the input sensing panel is on an upper surface of the display panel and includes a plurality of sensing electrodes; the adhesive member is between the display panel and the input sensing panel, the adhesive member connects the input sensing panel to the display panel; the flexible circuit board is connected to a first side of the input sensing panel; the reinforcement member is between a lower portion of the flexible circuit board and a second side of the input sensing panel adjacent to the first side, the reinforcement member covers a portion of the lower portion of the flexible circuit board. The reinforcement member is spaced apart from the protective member.

[0024] In an exemplary embodiment, the reinforcing member may be further located at one side of the adhesive member adjacent to the second side of the input sensing panel.

[0025] In an exemplary embodiment, a thickness of the reinforcing member may decrease as a distance from the second side of the input sensing panel increases.

[0026] In an exemplary embodiment, one side of the reinforcing member may be on the input sensing panel and the adhesive member to cover a lower end of the second side of the input sensing panel.

[0027] In an exemplary embodiment, the display device may further include a main circuit board and a panel flexible circuit board connected to one side of the display panel, the panel flexible circuit board electrically connecting the main circuit board to the display panel, wherein the flexible circuit board may be electrically connected to the main circuit board.

[0028] According to an exemplary embodiment, a method for manufacturing an input sensing device includes: connecting a flexible circuit board to a first side of an input sensing panel including a plurality of sensing electrodes; placing a first lower protective film below the input sensing panel and placing a second lower protective film below the first lower protective film; and placing a reinforcing member between a lower portion of the flexible circuit board and a second side of the input sensing panel adjacent to the first side, the reinforcing member covering a portion of the lower portion of the flexible circuit board. A side of any one of the first lower protective film and the second lower protective film facing the reinforcing member is spaced apart from the reinforcing member.

[0029] In an exemplary embodiment, the length of the second lower protective film in a direction parallel to the touch sensing surface of the input sensing panel may be shorter than the length of the first lower protective film in the direction, and a side of the second lower protective film facing the reinforcement member may be spaced apart from the reinforcement member.

[0030] In an exemplary embodiment, a thickness of the first lower protective film may be smaller than a thickness of the second lower protective film in a direction perpendicular to a touch sensing surface of the input sensing panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other aspects and features of the present invention will become more apparent to those skilled in the art from the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings:

[0032] Figure 1 is a perspective view of a portable terminal including a display device according to an exemplary embodiment of the present invention;

[0033] Figure 2 is an exploded view of a display device according to an exemplary embodiment of the present invention;

[0034] Figure 3 is a plan view of a display panel according to an exemplary embodiment of the present invention;

[0035] Figure 4 is a plan view of an input sensing unit according to an exemplary embodiment of the present invention;

[0036] Figure 5 is a side view of a display device according to an exemplary embodiment of the present invention;

[0037] Figure 6 is a side view of a display device according to an exemplary embodiment of the present invention;

[0038] Figure 7 is a graphic of a display device in a bent state;

[0039] FIG. 8A to FIG. 8D is a diagram of a method for manufacturing an input sensing unit;

[0040] Fig.9A and Fig. 9B is a view illustrating a method for manufacturing an input sensing unit according to an exemplary embodiment.

[0041] Fig. 10A and 10B is a view illustrating a method for manufacturing an input sensing unit according to an exemplary embodiment.

[0042] Fig.11 is a side view of a display device according to an exemplary embodiment of the present invention;

[0043] Fig.12 is a plan view showing a bottom portion of an input sensing unit according to an embodiment of the present invention; and

[0044] Fig.13 is a plan view showing a bottom portion of an input sensing unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] Hereinafter, exemplary embodiments will be described in more detail with reference to the accompanying drawings, in which the same reference numerals always represent the same elements. However, the present invention may be implemented in various forms and should not be construed as being limited to the embodiments shown herein. More specifically, these embodiments are provided as examples so that the present disclosure will be thorough and complete, and will fully convey the aspects and features of the present invention to those skilled in the art. Therefore, processes, elements and techniques that are not necessary for a person of ordinary skill in the art to fully understand the aspects and features of the present invention may not be described. Unless otherwise mentioned, the same reference numerals represent the same elements in all drawings and the described specifications, and therefore their descriptions may not be repeated.

[0046] In the accompanying drawings, for clarity, the relative sizes of elements, layers and regions may be magnified and / or simplified. For ease of explanation, spatially relative terms such as "below", "below", "lower", "below", "above", "upper" may be used herein to describe the relationship of an element or feature relative to another element or feature as shown in the accompanying drawings. It should be understood that, in addition to the orientations depicted in the accompanying drawings, spatially relative terms are also intended to cover different orientations of the device in use or operation. For example, if the device in the accompanying drawings is flipped, the element described as being "below" or "below" or "below" other elements or features will then be oriented to be "above" the other elements or features. Therefore, the exemplary terms "below" and "below" may cover both upper and lower orientations. The device may be oriented otherwise (e.g., rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0047] It should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the spirit and scope of the present invention, the first element, component, region, layer or part described below may be referred to as the second element, component, region, layer or part.

[0048] It should be understood that when an element or layer is referred to as being on, connected to or coupled to another element or layer, it can be directly on, directly connected to or coupled to the other element or layer, or there can be one or more intervening elements or layers. In addition, it should also be understood that when an element or layer is referred to as being between two elements or layers, it can be the only element or layer between the two elements or layers, or there can also be one or more intervening elements or layers.

[0049] The terms used herein are for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used herein, unless the context clearly indicates otherwise, the singular forms "one" and "an" are intended to also include plural meanings. It should also be understood that the terms "comprises", "comprising", "includes" and "including", "has", "have" and "having" when used in this specification indicate the presence of the features, integral bodies, steps, operations, elements and / or components described, but do not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the related listed items. Statements such as "at least one of" modify the entire element list when it is after the element list, rather than modifying the individual elements of the list.

[0050] As used herein, the terms "substantially," "approximately," and similar terms are used as terms of approximation rather than as terms of degree, and are intended to allow for the inherent deviations in measured or calculated values ​​that one of ordinary skill in the art will recognize. In addition, when describing embodiments of the present invention, the use of "may" means "one or more embodiments of the present invention." As used herein, the terms "use," "using," and "used" may be interpreted as synonymous with the terms "utilize," "utilizing," and "utilized," respectively. In addition, the term "exemplary" is intended to mean an example or illustration.

[0051] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant field and / or this specification, and should not be interpreted in an idealized or overly formal sense, unless explicitly defined as such herein.

[0052] Descriptions of features or aspects within each exemplary embodiment should typically be considered as available for other similar features or aspects in other exemplary embodiments.

[0053] Figure 1 is a perspective view of a portable terminal including a display device according to an exemplary embodiment of the present invention.

[0054] refer to Figure 1 According to some exemplary embodiments of the present invention, a portable terminal (e.g., a mobile device) is shown as an example of an electronic device having a display device DD. In various embodiments, the portable terminal may include, for example, a tablet PC, a smart phone, a personal digital assistant (PDA), a portable multimedia player (PMP), a game console, a watch-type (or smart watch) electronic device, etc. However, the present invention is not limited thereto, and in other embodiments, according to various embodiments of the present disclosure, the portable terminal may include any suitable electronic device having a display device (e.g., a display device DD).

[0055] For example, in some embodiments, the display device DD of the present invention may be a display device for large electronic devices such as televisions, outdoor billboards, etc. In other embodiments, the display device DD may be a display device for small and / or medium-sized electronic devices such as personal computers, notebook computers, vehicle navigation units, cameras, etc. Therefore, although various examples of the display device DD are shown in the various figures as being implemented in a portable terminal (or mobile device), it should be understood that the display device DD according to the various exemplary embodiments of the present invention may be implemented in any suitable electronic device without departing from the spirit or scope of the present invention.

[0056] like Figure 1 As shown in , the display surface on which the image IM is displayed is defined by a plane defined by a first direction DR1 and a second direction DR2 (or is parallel to the plane defined by the first direction DR1 and the second direction DR2). The display device DD includes a plurality of areas (e.g., DA and NDA) distinguishable on the display surface. For example, the display surface includes a display area DA at which the image IM is displayed (e.g., in the middle or on top) and a non-display area NDA adjacent to the display area DA. In some embodiments, the non-display area NDA may be referred to as a border area. For example, the display area DA may have a rectangular shape. The non-display area NDA may surround the display area DA. In addition, although there is no Figure 1 , but in some embodiments, the display device DD may include a curved (or partially curved) shape or surface. For example, in some embodiments, the display area DA may have one or more portions (or regions) having a curved shape (or curved surface).

[0057] As used in the present disclosure, a front surface (e.g., an upper surface or a first surface) and a rear surface (e.g., a lower surface or a second surface) may be distinguished in the direction in which the image IM is displayed. For example, the surface toward which the image IM is displayed may be referred to as a front surface (e.g., an upper surface or a first surface), and the opposite surface may be referred to as a rear surface (e.g., a lower surface or a second surface). However, the present invention is not limited to the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 shown in the drawings, and these directions may be converted into various different directions. In the following, as shown in the drawings, the first direction is referred to by the reference numeral DR1, the second direction is referred to by the reference numeral DR2, and the third direction is referred to by the reference numeral DR3.

[0058] The display device DD according to an embodiment of the present invention can sense a user input TC applied externally (e.g., from the outside) by a user. The user input TC of the user may include various types of external inputs, such as, for example, a part of the body (e.g., a finger), light input, heat or thermal input, touch input (e.g., from the user), or pressure input (e.g., as applied by the user). For ease of explanation, the user input TC is Figure 1 , a user's hand is shown applying input (e.g., touch input) to the front surface of the display device DD, but the present invention is not limited to this, and the user input TC may be set in various forms as described above, and / or may be applied to the side surface or rear surface of the display device DD according to the structure of the display device DD.

[0059] Figure 2 is an exploded view of a display device according to an exemplary embodiment of the present invention. Figure 2 In the example, some components and assemblies may be omitted for the sake of clarity. Figure 2 For the purpose of clarity, the bonding member is not shown, but reference is made to Figure 5 The bonding member is shown in more detail.

[0060] like Figure 2 As shown in , the display device DD includes a window member WM and a display module DM. The window member WM defines the front surface of the display device DD. The window member WM may include a glass substrate, a sapphire substrate, a plastic substrate, etc. In addition, the window member WM may include a functional coating layer, such as an anti-fingerprint layer, an anti-reflection layer, and / or a hard coating layer. Although in Figure 2 , the window member WM having a flat shape in the display area DA is shown, but the present invention is not limited thereto, and the shape of the window member WM may be variously modified. For example, in some embodiments, an edge of the window member WM facing the first direction DR1 may provide a curved surface.

[0061] The display module DM is disposed on the rear surface of the window member WM to generate an image. In addition, for example, the display module DM may sense Figure 1 The user input TC shown in (eg, touch input and / or pressure applied via user action).

[0062] Although Figure 2 The display module DM is shown to provide a flat display surface, but the present invention is not limited thereto and the shape of the display module DM may be variously modified. For example, in some embodiments, the edge of the display module DM facing the first direction DR1 may be bent from the center (or central portion) to provide a curved surface.

[0063] In some embodiments, the display module DM may include an input sensing panel TSP, an anti-reflection unit (or anti-reflector) ARU, a display panel DP, a protective film PF, a support panel SPP, an input control unit (or input controller) TCM, and a drive control module (or drive controller) DCM.

[0064] The input sensing panel TSP obtains the user input TC (for example, Figure 1 ). The input sensing panel TSP may be referred to as a touch sensing panel. The input sensing panel TSP may sense various types of inputs provided outside the display device DD. In an exemplary embodiment, the input sensing panel TSP may sense inputs made by a user's body (e.g., a user's finger), but the present invention is not limited thereto. For example, the input sensing panel TSP may recognize various types of external inputs, such as, for example, light, heat, and / or pressure. In addition, the input sensing panel TSP may sense inputs contacting a sensing surface and / or inputs approaching (or close to) a sensing surface.

[0065] In various embodiments, the input sensing panel TSP may be, for example, a capacitive touch panel, an electromagnetic induction type touch panel, etc. Such an input sensing panel TSP may include sensing electrodes and signal lines connected to a base layer.

[0066] The input control module TCM includes a second circuit board FCB2 (or a flexible circuit board) and an input drive circuit TDC. The second circuit board FCB2 can electrically connect the input sensing panel TSP to the main circuit board MCB, and the input drive circuit TDC can be mounted on the second circuit board FCB2. The input drive circuit TDC can be implemented as an integrated circuit. The second circuit board FCB2 can be a flexible circuit board.

[0067] The display panel DP may include various display elements. The display element may include, for example, a liquid crystal capacitor, an organic light emitting element, an electrophoretic element, and / or an electrowetting element. For convenience, the display element is described below as a plurality of organic light emitting diodes. In other words, the display panel DP according to an exemplary embodiment of the present invention may be a flexible display panel, for example, an organic light emitting display panel, but the present invention is not limited thereto.

[0068] The anti-reflection unit ARU may include a polarizing film and / or a phase retardation film. The number of phase retardation films and the phase retardation extension (λ / 4 or λ / 2) of the phase retardation films may be determined according to the operating principle of the anti-reflection unit ARU. In some embodiments, the anti-reflection unit ARU may include a color filter.

[0069] The protective film PF is disposed on the rear surface of the display panel DP. The protective film PF may include a plastic film as a base layer. For example, in some embodiments, the protective film PF may include a plastic film including any one selected from the group consisting of polyethersulfone (PES), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyarylate, polyimide (PI), polycarbonate (PC), polyarylene ether sulfone (poly(arylene ether sulfone)), and combinations thereof.

[0070] The material constituting the protection film PF is not limited to plastic and may include organic and / or inorganic composite materials. For example, in some embodiments, the protection film PF may include a porous organic layer and an inorganic material filled in the pores of the organic layer.

[0071] The support panel SPP is disposed on the rear surface of the protective film PF to support the display panel DP and the protective film PF. The support panel SPP may be a metal plate having a higher rigidity than a reference rigidity. For example, in some embodiments, the support panel SPP may be a stainless steel plate. In some embodiments, the support panel SPP may have a black color for blocking external light incident on the display panel DP.

[0072] The drive control module DCM includes a main circuit board MCB (or a drive circuit board), a first circuit board FCB1 (or a panel flexible circuit board), and a panel drive circuit PDC. The first circuit board FCB1 can electrically connect the main circuit board MCB to the display panel DP, and the panel drive circuit PDC can be mounted on the first circuit board FCB1. The panel drive circuit PDC can be implemented as an integrated circuit. In some embodiments, a plurality of passive components and active components can be mounted on the main circuit board MCB. The main circuit board MCB can be a rigid circuit board or a flexible circuit board, and the first circuit board FCB1 can be a flexible circuit board.

[0073] In an exemplary embodiment of the present invention, the protective film PF may be omitted. In some embodiments, some configurations of the drive control module DCM may be omitted or various changes may be made thereto. For example, in some embodiments, the panel drive circuit PDC may be mounted (eg, directly mounted) on the display panel DP.

[0074] Figure 3 is a plan view of a display panel according to an exemplary embodiment of the present invention. Figure 3 The signal circuit diagram is schematically shown. Figure 3 In the figure, some components are omitted for clarity of illustration.

[0075] like Figure 3As shown in , the display panel DP includes a display area DP-DA and a non-display area DP-NDA on a plane (eg, the same plane). Figure 3 As shown in , in some embodiments, a non-display area DP-NDA may be defined along an edge (or periphery) of the display area DP-DA. Figure 3 The display area DP-DA and the non-display area DP-NDA of the display panel DP shown in FIG. Figure 1 The display area DA and the non-display area NDA of the display device DD shown in FIG. 1 correspond to each other.

[0076] The display panel DP may include a scan drive circuit SDC, a plurality of signal lines SGL (hereinafter, referred to as signal lines), a plurality of signal pads PD (hereinafter, referred to as signal pads), and a plurality of pixels PX (hereinafter, referred to as pixels). The pixels PX are arranged at (e.g., in or above) the display area DP-DA. In some embodiments, each of the pixels PX includes an organic light emitting diode and a pixel drive circuit connected thereto.

[0077] The scan drive circuit SDC generates a plurality of scan signals (hereinafter, referred to as scan signals) and outputs (e.g., sequentially) the scan signals to a plurality of scan lines SL (hereinafter, referred to as scan lines) described in more detail below. The scan drive circuit SDC may also output another control signal to the drive circuit of the pixel PX.

[0078] In some embodiments, the scan driving circuit SDC may include a plurality of thin film transistors formed by the same process as the driving circuit of the pixel PX, such as, for example, a low temperature polysilicon (LTPS) process or a low temperature polycrystalline oxide (LTPO) process.

[0079] The signal lines SGL include scan lines SL, data lines DL, power lines PL, and control signal lines CSL. The scan lines SL are respectively connected to corresponding pixels PX among the plurality of pixels PX, and the data lines DL are respectively connected to corresponding pixels PX among the plurality of pixels PX. The power lines PL are connected to the pixels PX. The control signal lines CSL can provide control signals to the scan drive circuit SDC.

[0080] The signal line SGL overlaps the display area DP-DA and the non-display area DP-NDA. The signal line SGL may include a pad portion and a line portion. The line portion overlaps the display area DP-DA and the non-display area DP-NDA. The pad portion is connected to one end of the line portion. The pad portion is arranged at the non-display area DP-NDA (e.g., in the middle or on) and overlaps with a corresponding signal pad PD among a plurality of signal pads PD. The area where the signal pad PD is arranged at the non-display area DP-NDA (e.g., in the middle or on) may be defined as the pad area NDA-PD.

[0081] The line portion of the signal line SGL connected to the pixel PX basically includes a large number of signal lines SGL. The line portion is connected to the transistor of the pixel PX. The line portion may have a single-layer structure or a multi-layer structure, and the line portion may have a continuous body (or line) or may include two or more different parts. For example, when the line portion includes two or more different parts, the two or more different parts may be arranged on different layers and may be connected to each other through a contact hole passing through an insulating layer arranged between the two or more different parts.

[0082] Figure 4 is a plan view of an input sensing panel according to an exemplary embodiment of the present invention.

[0083] refer to Figure 4 The input sensing panel TSP can sense the user input TC (for example, Figure 1 As shown in FIG. 1 ), the position or strength information of the external user input TC is obtained. The input sensing panel TSP includes a touch area TA and a touch peripheral area TSA on the same plane. Figure 4 As shown in , in some embodiments, a touch peripheral area TSA may be defined along an edge (or periphery) of the touch area TA. Figure 4 The touch area TA and the touch peripheral area TSA of the input sensing panel TSP shown in FIG. Figure 1 The display area DA and the non-display area NDA of the display device DD shown in FIG. 1 correspond to each other.

[0084] The input sensing panel TSP includes a plurality of first sensing electrodes SE1 , a plurality of second sensing electrodes SE2 , a plurality of sensing lines TL1 , TL2 , and TL3 , and a plurality of sensing pads TPD.

[0085] The first sensing electrodes SE1 and the second sensing electrodes SE2 are disposed at (eg, in or above) the touch area TA. In some embodiments, the input sensing panel TSP may obtain information about the user input TC through changes in capacitance between the first sensing electrodes SE1 and the second sensing electrodes SE2.

[0086] Each of the first sensing electrodes SE1 extends along the first direction DR1 and is arranged along the second direction DR2 The first sensing electrode SE1 may include a plurality of first sensing patterns SP1 and a plurality of first connection patterns CP1.

[0087] The first sensing patterns SP1 defining one first sensing electrode SE1 are arranged to be spaced apart from each other along the first direction DR1. Figure 4The first sensing patterns SP1 shown in φ are shown as shaded. The first connection pattern CP1 is disposed between the plurality of first sensing patterns SP1 and connects two adjacent first sensing patterns SP1 to each other.

[0088] Each of the second sensing electrodes SE2 extends along the second direction DR2 and is arranged along the first direction DR1. The second sensing electrodes SE2 may include a plurality of second sensing patterns SP2 and a plurality of second connection patterns CP2.

[0089] The second sensing patterns SP2 defining one second sensing electrode SE2 are disposed to be spaced apart from each other along the second direction DR2. The second connection pattern CP2 is disposed between the plurality of second sensing patterns SP2 and connects two adjacent second sensing patterns SP2 to each other.

[0090] The sensing lines TL1, TL2 and TL3 are disposed at (e.g., in or above) the touch peripheral area TSA. The sensing lines TL1, TL2 and TL3 may include a first sensing line TL1, a second sensing line TL2 and a third sensing line TL3. The first sensing lines TL1 are respectively connected to the first sensing electrodes SE1. The second sensing lines TL2 are respectively connected to one end of the second sensing electrodes SE2.

[0091] The third sensing lines TL3 are respectively connected to the other ends of the second sensing electrodes SE2. The other ends of the second sensing electrodes SE2 may be opposite to the one ends of the second sensing electrodes SE2. According to an exemplary embodiment of the present invention, the second sensing electrode SE2 may be connected to the second sensing line TL2 and the third sensing line TL3. Therefore, although the length of the second sensing electrode SE2 is greater than the length of the first sensing electrode SE1, the sensitivity according to the area may be uniformly maintained. However, the present invention is not limited thereto, and in another example, the third sensing line TL3 may be omitted and is not limited to any particular embodiment.

[0092] The sensing pads TPD are disposed at (eg, in or above) the touch peripheral area TSA. The sensing pads TPD are respectively connected to the sensing lines TL1, TL2, and TL3, and electrically provide (or connect) an external signal to each of the first and second sensing electrodes SE1 and SE2.

[0093] In the following, reference will be made to Figure 5 and Figure 6 The display device DD according to various embodiments of the present invention is described in more detail.

[0094] Figure 5 and Figure 6 is a side view of a display device DD according to some embodiments of the present invention. Figure 5 The display panel DP is shown in an unfolded (or unbent) state, and Figure 6The display panel DP is shown in a bent (or folded) state.

[0095] refer to Figure 5 and Figure 6 The display device DD includes a window member WM and a display module DM. The window member WM includes a base member BS and a frame layer BZL disposed on the rear surface of the base member BS. The area where the frame layer BZL is disposed is defined as a non-display area NDA (e.g., Figure 1 ). Although the window widget WM Figure 5 and Figure 6 2 is shown as having a flat shape (or a flat surface) in the display area DA, but the shape of the window member WM may be variously modified. For example, in some embodiments, an edge of the window member WM facing the first direction DR1 may be curved to provide a curved surface of the window member WM.

[0096] The base member BS may include a glass substrate, a sapphire substrate, a plastic substrate, etc. The base member BS may have a multi-layer structure or a single-layer structure. For example, the base member BS may include a plurality of plastic films bonded to each other using an adhesive (e.g., one or more adhesive layers). In some embodiments, the base member BS may include a glass substrate and a plastic film bonded to the glass substrate using an adhesive member (e.g., one or more adhesive layers).

[0097] The frame layer BZL may have a single-layer structure or a multi-layer structure. In some embodiments, if the frame layer BZL has a multi-layer structure, the multi-layer frame layer BZL may include a buffer layer for improving adhesion, a pattern layer for providing a pattern (e.g., a predetermined pattern), and a colorless layer. The pattern layer may provide a pattern called a hairline. The colorless layer may include an organic mixture containing a black pigment or dye. In various embodiments, the above-mentioned layers of the frame layer BZL may be formed by deposition, printing, coating, etc. In some embodiments, the window member WM may also include a functional coating layer disposed on the front surface of the base member BS. For example, in some embodiments, the functional coating layer may include an anti-fingerprint layer, an anti-reflection layer, and / or a hard coating layer.

[0098] The display module DM may include a display panel DP, an input sensing panel TSP, an anti-reflection unit (eg, anti-reflector) ARU, a protection film PF, and a support panel SPP.

[0099] As described in more detail below, in some embodiments, the first adhesive member (or adhesive layer) AM1 to the sixth adhesive member (or adhesive layer) AM6 may include a pressure-sensitive adhesive film (PSA), an optically transparent adhesive film (OCA) and / or an optically transparent resin (OCR). In some embodiments, the first adhesive member AM1 to the sixth adhesive member AM6 may include a photocurable adhesive material or a thermally curable adhesive material, but the present invention is not limited thereto. In addition, in some embodiments, some of the first adhesive member AM1 to the sixth adhesive member AM6 may be omitted.

[0100] The input sensing panel TSP is disposed on the rear surface of the window member WM. The window member WM and the input sensing panel TSP may be connected (or bonded) to each other by a first bonding member AM1. The anti-reflection unit ARU is disposed on the rear surface of the input sensing panel TSP. The input sensing panel TSP and the anti-reflection unit ARU may be connected (or bonded) to each other by a second bonding member AM2. The display panel DP is disposed on the rear surface of the anti-reflection unit ARU. The anti-reflection unit ARU and the display panel DP may be connected (or bonded) to each other by a third bonding member AM3. In some embodiments, the third bonding member AM3 may have a relatively thin thickness when compared with the thickness of the first bonding member AM1 and the second bonding member AM2. In some embodiments, the positions (or orientations) of the anti-reflection unit ARU and the input sensing panel TSP may be transformed with each other.

[0101] The second circuit board FCB2 is connected to one side (e.g., a first side or a first side surface, such as an upper surface) of the input sensing panel TSP. The input driving circuit TDC is mounted on the rear surface of the second circuit board FCB2 (or attached to the rear surface of the second circuit board FCB2). Figure 6 As shown in , when the second circuit board FCB2 is in a bent (or folded) state, the second circuit board FCB2 can be connected to the main circuit board MCB. In an exemplary embodiment, the main circuit board MCB and the second circuit board FCB2 are shown as being in direct contact with each other, but the present invention is not limited thereto. For example, the main circuit board MCB and the second circuit board FCB2 can be electrically connected to each other by a conductive member disposed between the main circuit board MCB and the second circuit board FCB2 in the thickness direction (e.g., the third direction DR3) of the display module DM.

[0102] The reinforcing member SM is disposed below the second circuit board FCB2 (e.g., on the rear surface of the second circuit board FCB2). For example, the reinforcing member SM is disposed between the lower portion of the second circuit board FCB2 and a side (e.g., the second side or the second side surface) OS1 of the input sensing panel TSP adjacent to the first side. The reinforcing member SM covers a portion of the lower portion of the second circuit board FCB2. In some embodiments, the thickness of the reinforcing member SM decreases as the distance from the side (e.g., the second side) OS1 of the input sensing panel TSP increases. When the second circuit board FCB2 is flat and not folded or bent, the lower surface of the reinforcing member SM may have a plane that is inclined (or has an inclination) from the lower end of the side (e.g., the second side) OS1 of the input sensing panel TSP toward the rear surface of the second circuit board FCB2.

[0103] The reinforcing member SM may include an insulating material. The reinforcing member SM may include a resin that can be cured by ultraviolet rays. For example, the reinforcing member SM may include an acrylic resin. In some embodiments, the resin for forming the reinforcing member SM is applied to the lower portion of the second circuit board FCB2, and the applied resin is cured by ultraviolet rays to form the reinforcing member SM. After the reinforcing member SM is formed, the second circuit board FCB2 may be bent or folded.

[0104] For example, the second circuit board FCB2 may be bent or folded toward the direction in which the rear surface of the display module DM is located. In an exemplary embodiment of the present invention, the reinforcing member SM is disposed between the rear surface of the second circuit board FCB2 and the second side OS1 of the input sensing panel TSP, thereby reinforcing (or reinforcing) the bending area (or folding area) BA of the second circuit board FCB2. Therefore, the second circuit board FCB2 may be prevented or substantially prevented from being bent (or folded) to a large extent (e.g., excessively bent) in the bending area BA, and cracks may not occur in the wiring (or wire) disposed on the surface (e.g., the upper surface) of the second circuit board FCB2.

[0105] exist Figure 5 and Figure 6 In the embodiment, for convenience, the display panel DP is schematically shown as a single layer. However, it should be understood that the display panel DP may include a substrate layer, a circuit layer, a light emitting element layer, an encapsulation layer, and the like.

[0106] The rear surface of the display panel DP and the protection film PF may be connected (or bonded) to each other by a fourth adhesive member AM4.

[0107] The protection film PF and the support panel SPP may be connected (or bonded) to each other by a fifth adhesive member AM5.

[0108] A portion of the display panel DP may be disposed corresponding to the bending area BA. The display module DM may further include a protection member SNL (or a stress neutral layer) disposed on the upper surface of the display panel DP so as to correspond to at least the bending area BA. A portion of the protection member SNL may partially overlap with the non-bending area NBA of the display panel DP. The protection member SNL may include a plastic film similar to or substantially the same as the protective film PF.

[0109] like Figure 6 As shown in more detail in , when in a bent (or folded) state, the display panel DP can be connected to (eg, bonded to) the support panel SPP by the sixth bonding member AM6. The sixth bonding member AM6 can also serve as a spacer for maintaining or substantially maintaining the curvature radius of the bending area BA.

[0110] In an exemplary embodiment, the main circuit board MCB is Figure 6 2 is shown as being in direct contact with the first circuit board FCB1, but the present invention is not limited thereto. For example, in some embodiments, the main circuit board MCB may be electrically connected to the first circuit board FCB1 in the thickness direction of the display module DM (e.g., the third direction DR3) through a conductive member disposed between the main circuit board MCB and the first circuit board FCB1.

[0111] like Figure 5 and Figure 6 As shown in , the reinforcing member SM may be disposed to be spaced apart from the protective member SNL by a certain distance (eg, a predetermined distance). Figure 7 As will be described in more detail, preventing or substantially preventing the reinforcing member SM from contacting the protection member SNL can prevent or reduce damage occurring in the second circuit board FCB2.

[0112] Figure 7 Graphic showing a display device in a bent (or folded) state.

[0113] like Figure 7 As shown in , when the thickness (e.g., maximum thickness) of the reinforcing member SM is greater than the sum of the thicknesses of the input sensing panel TSP and the second adhesive member AM2 in the thickness direction of the display module DM (e.g., the third direction DR3), a portion (or region) A1 of the reinforcing member SM may contact the protective member SNL. When the reinforcing member SM and the protective member SNL contact in a state where both the second circuit board FCB2 and the display panel DP are bent, a portion A1 of the reinforcing member SM having a sharp tip shape (e.g., a sharp peak or mountain shape) may act as a lever, deforming the shape of the second circuit board FCB2. In this case, the wiring arranged on the upper surface of the second circuit board FCB2 may be damaged.

[0114] FIG. 8A to FIG. 8Dis a diagram of a method for manufacturing an input sensing unit (eg, an input sensor or an input sensing device).

[0115] refer to Fig. 8A The input sensing unit TSU includes an input sensing panel TSP, an upper protection film UPF, a lower protection film LPF and a second circuit board FCB2. The input sensing unit TSU may be referred to as a touch sensing unit for sensing external user input TC (eg, proximity touch, direct touch, pressure, etc.).

[0116] The input sensing panel TSP includes sensing pads TPD disposed (e.g., provided) on one side (or front surface) of the input sensing panel TSP. One side (e.g., rear surface) of the second circuit board FCB2 is electrically connected to the input sensing panel TSP through the sensing pads TPD. In this case, the sensing pads TPD can electrically connect the second circuit board FCB2 to the input sensing panel TSP, and can physically connect (or combine) the second circuit board FCB2 and the input sensing panel TSP.

[0117] The upper protection film UPF protects the upper surface of the input sensing panel TSP, and the lower protection film LPF protects the lower surface of the input sensing panel TSP. In order to protect the input sensing panel TSP from external stimulation, each of the upper protection film UPF and the lower protection film LPF has a sufficient thickness (e.g., a predetermined thickness) in the third direction DR3. Each of the upper protection film UPF and the lower protection film LPF may be a peelable film.

[0118] refer to Figure 8B A reinforcing member SM is disposed between a lower portion of the second circuit board FCB2 and the second side surface OS1 adjacent to a first side of the input sensing panel TSP in a state in which the second circuit board FCB2 and the input sensing panel TSP are coupled (or connected) to each other.

[0119] The reinforcing member SM may include an insulating material. The reinforcing member SM may include a resin that can be cured by ultraviolet rays. For example, the reinforcing member SM may include an acrylic resin. The resin for forming the reinforcing member SM is applied to the lower portion of the second circuit board FCB2, and the applied resin is cured by ultraviolet rays to form the reinforcing member SM. The reinforcing member SM is disposed adjacent to (or on) one side surface of the input sensing panel TSP (e.g., the second side surface OS1) and one side surface OS2 of the lower protective film LPF. In other words, the lower surface of the reinforcing member SM is formed to extend to the lower portion of one side surface OS2 of the lower protective film LPF.

[0120] refer to Figure 8C, after forming the reinforcement member SM, the upper protection film UPF and the lower protection film LPF are removed from the input sensing panel TSP (eg, separately).

[0121] refer to Fig.8D The display panel DP on which the anti-reflection unit (or anti-reflector) ARU is attached is connected (eg, bonded) to the input sensing panel TSP through the second adhesive member AM2.

[0122] In such Figure 8B During the formation of the reinforcing member SM as shown in FIG, due to the capillary phenomenon caused by the material characteristics, the shape of the lower surface of the reinforcing member SM is formed along one side surface OS2 of the lower protection film LPF, and when the lower protection film LPF is removed, the shape of the reinforcing member SM is a sharp tip shape (for example, a shape like a sharp peak or a sharp mountain). In this case, when the lower surface of the reinforcing member SM is formed to be lower than the lower surface of the second bonding member AM2, the reinforcing member SM may contact the protection member SNL at a portion or region A1 (for example, as shown in FIG. Figure 7 ).

[0123] Fig.9A and Fig. 9B 2 is a view illustrating a method for manufacturing an input sensing unit (eg, an input sensor or an input sensing device) according to an exemplary embodiment.

[0124] refer to Fig.9A , the input sensing unit TSU includes an input sensing panel TSP, an upper protection film UPF, a first lower protection film LPF1, a second lower protection film LPF2, and a second circuit board FCB2. The input sensing panel TSP includes a sensing pad TPD disposed on one side thereof. One side of the second circuit board FCB2 is electrically connected to the input sensing panel TSP through the sensing pad TPD. In an exemplary embodiment, the sensing pad TPD can electrically connect the second circuit board FCB2 to the input sensing panel TSP, and can also physically connect (or combine) the second circuit board FCB2 and the input sensing panel TSP.

[0125] The upper protection film UPF protects the upper surface of the input sensing panel TSP, and the first lower protection film LPF1 and the second lower protection film LPF2 protect the lower surface of the input sensing panel TSP. In an exemplary embodiment, the first lower protection film LPF1 is disposed below the input sensing panel TSP, and the second lower protection film LPF2 is disposed below the first lower protection film LPF1. In some embodiments, each of the upper protection film UPF, the first lower protection film LPF1, and the second lower protection film LPF2 may be a strippable film.

[0126] In some embodiments, the first lower protection film LPF1 has a first length L1 in the second direction DR2, and the second lower protection film LPF2 has a second length L2 in the second direction DR2. The first length L1 of the first lower protection film LPF1 and the second length L2 of the second lower protection film LPF2 may be different from each other. For example, Fig.9A As shown in the embodiment of the present invention, the first length L1 of the first lower protection film LPF1 may be the same or almost the same (e.g., substantially equal) as the length of the input sensing panel TSP in the second direction DR2. In addition, the second length L2 of the second lower protection film LPF2 may be shorter than the first length L1 of the first lower protection film LPF1.

[0127] In some embodiments, the first lower protection film LPF1 has a first thickness FTH1 in the third direction DR3, and the second lower protection film LPF2 has a second thickness FTH2 in the third direction DR3. The first thickness FTH1 of the first lower protection film LPF1 and the second thickness FTH2 of the second lower protection film LPF2 may be different from each other. For example, Fig.9A As shown in the embodiment of FIG. 1 , the first thickness FTH1 of the first lower protection film LPF1 is smaller than the second thickness FTH2 of the second lower protection film LPF2 .

[0128] refer to Fig. 9B When the second circuit board FCB2 and the input sensing panel TSP are coupled (or connected) to each other, a reinforcing member SM is provided between a lower portion of the second circuit board FCB2 and a side surface (e.g., the second side) of the input sensing panel TSP adjacent to the one side (e.g., the first side).

[0129] The reinforcement member SM may include an insulating material. The reinforcement member SM may include a resin that can be cured by ultraviolet rays. For example, in some embodiments, the reinforcement member SM may include an acrylic resin. The resin for forming the reinforcement member SM may be applied to the lower portion of the second circuit board FCB2, and the applied resin may be cured by ultraviolet rays to form the reinforcement member SM. According to an exemplary embodiment, the reinforcement member SM is disposed adjacent to (or on) one side surface of the input sensing panel TSP and one side surface of the first lower protective film LPF1. Therefore, the lower surface of the reinforcement member SM is formed on the lower portion of one side surface of the first lower protective film LPF1.

[0130] However, when FIG. 8A to FIG. 8D When compared to the example shown in Fig. 9BIn the embodiment shown in , one side surface of the first lower protective film LPF1 and one side surface of the second lower protective film LPF2 are spaced apart from each other, so the lower surface of the reinforcement member SM can be formed on the lower portion of one side surface of the first lower protective film LPF1, but not on one side surface of the second lower protective film LPF2.

[0131] When the lower surface of the reinforcing member SM is formed on a lower portion of one side surface of the first lower protection film LPF1 but not on one side surface of the second lower protection film LPF2, the thickness TH2 of the reinforcing member SM may be smaller than that formed on a lower portion of one side surface of the second lower protection film LPF2 (for example, Figure 8B ) may have a thickness TH1 of the reinforcing member SM. For example, in some embodiments, the thickness TH1 may be 125 μm and the thickness TH2 may be 85-90 μm.

[0132] In addition, the thickness TH2 of the reinforcement member SM may be reduced or minimized by reducing (or minimizing) the first thickness FTH1 of the first lower protection film LPF1. In addition, according to exemplary embodiments, the first thickness FTH1 of the first lower protection film LPF1 may be reduced or minimized, and the second lower protection film LPF2 may provide sufficient protection for the lower portion of the input sensing panel TSP.

[0133] After removing the first and second lower protection films LPF1 and LPF2 from the input sensing panel TSP, an anti-reflection unit (eg, anti-reflector) ARU and a display panel DP may be coupled (or connected) to a lower portion of the input sensing panel TSP.

[0134] refer to Figure 5 and Fig. 9B , when the lower surface of the reinforcing member SM is formed on the lower portion of one side surface of the first lower protection film LPF1 but not on one side surface of the second lower protection film LPF2, when the first lower protection film LPF1 is removed and the second adhesive member AM2 is provided, the reinforcing member SM overlaps a portion of one side surface of the second adhesive member AM2 (for example, a side surface adjacent to the second side OS1 of the input sensing panel TSP). Therefore, the reinforcing member SM does not contact the protection member SNL. Therefore, the interference phenomenon between the reinforcing member SM and the protection member SNL (or damage caused thereby) can be prevented or reduced.

[0135] Fig. 10A and Fig. 10B is a view illustrating a method for manufacturing an input sensing unit according to an exemplary embodiment.

[0136] refer to Fig. 10A, the input sensing unit TSU includes an input sensing panel TSP, an upper protection film UPF, a first lower protection film LPF1, a second lower protection film LPF2, and a second circuit board FCB2.

[0137] The first lower protection film LPF1 has a first length L1 in the second direction DR2, and the second lower protection film LPF2 has a second length L2 in the second direction DR2. The first length L1 of the first lower protection film LPF1 and the second length L2 of the second lower protection film LPF2 may be different from each other. Fig. 10A In the embodiment shown in , in the second direction DR2, the second length L2 of the second lower protection film LPF2 is the same or almost the same (e.g., substantially equal) as the length of the input sensing panel TSP. In addition, in some embodiments, the first length L1 of the first lower protection film LPF1 is shorter than the second length L2 of the second lower protection film LPF2.

[0138] The first lower protection film LPF1 has a first thickness FTH1 in the third direction DR3, and the second lower protection film LPF2 has a second thickness FTH2 in the third direction DR3. The first thickness FTH1 of the first lower protection film LPF1 and the second thickness FTH2 of the second lower protection film LPF2 may be different from each other. Fig. 10A As shown in the embodiment of FIG. 1 , the first thickness FTH1 of the first lower protection film LPF1 is thicker than the second thickness FTH2 of the second lower protection film LPF2 .

[0139] refer to Fig. 10B When the second circuit board FCB2 and the input sensing panel TSP are coupled (or connected) to each other, a reinforcing member SM is provided between a lower portion of the second circuit board FCB2 and a side surface (e.g., the second side) of the input sensing panel TSP adjacent to the one side (e.g., the first side).

[0140] The reinforcement member SM may include an insulating material. The reinforcement member SM may include a resin that can be cured by ultraviolet rays. In some embodiments, the reinforcement member SM is disposed on a side surface (e.g., the second side) of the input sensing panel TSP and adjacent to a side surface of the first lower protective film LPF1. In addition, the reinforcement member SM may be disposed between the input sensing panel TSP and the second lower protective film LPF2 to overlap with a portion of the second lower protective film LPF2. For example, the lower surface of the reinforcement member SM is formed to cover a portion of the lower surface of the input sensing panel TSP.

[0141] In some embodiments, because the lower surface of the reinforcement member SM is formed below the input sensing panel TSP according to the first thickness FTH1 of the first lower protective film LPF1, the thickness TH4 of the reinforcement member SM is less than the thickness TH3 of the reinforcement member SM having such a lower portion formed on the lower portion of one side surface of the second lower protective film LPF2.

[0142] For example, the thickness TH3 may be 125 μm and the thickness TH4 may be 100-105 μm.

[0143] After removing the first and second lower protection films LPF1 and LPF2 from the input sensing panel TSP, an anti-reflection unit (eg, anti-reflector) ARU and a display panel DP are coupled (eg, connected) to a lower portion of the input sensing panel TSP.

[0144] Fig.11 is a side view of a display device DD according to an exemplary embodiment of the present invention.

[0145] refer to Fig. 10B and Fig.11 , because the lower surface of the reinforcement member SM is formed under the input sensing panel TSP according to the first thickness FTH1 of the first lower protection film LPF1, when the first lower protection film LPF1 is removed and the second adhesive member AM2 is disposed, the reinforcement member SM overlaps a portion of one side surface of the second adhesive member AM2. Therefore, the reinforcement member SM does not contact the protection member SNL.

[0146] Fig.12 is a plan view illustrating a lower portion of an input sensing unit (eg, an input sensor or an input sensing device) according to an exemplary embodiment of the present invention.

[0147] refer to Fig.12 The first lower protection film LPF1 is disposed below the input sensing panel TSP. The second lower protection film LPF2 is disposed below the first lower protection film LPF1.

[0148] exist Fig. 10A and Fig. 10B In the exemplary embodiment shown in , because the first length L1 of the first lower protective film LPF1 is shorter than the second length L2 of the second lower protective film LPF2, a space (eg, an empty space) is formed between the input sensing panel TSP and the second lower protective film LPF2.

[0149] When the portion not attached to the second lower protective film LPF2 and the input sensing panel TSP stretches toward the lower direction of the input sensing panel TSP, the input sensing panel TSP may be bent and may cause an unexpected malfunction.

[0150] Return to reference Fig.12 The first lower protection film LPF1 is provided with an opening LPF1-O in a region where the reinforcement member SM is to be provided. The length of the opening LPF1-O in the first direction DR1 is shorter than the length of the first lower protection film LPF1 in the first direction DR1 and longer than the length of the reinforcement member SM in the first direction DR1.

[0151] The other portion of the first lower protection film LPF1 (for example, except for the opening LPF1-O) is attached to the input sensing panel TSP. In this case, since the opening LPF1-O of the first lower protection film LPF1 is reduced or minimized, the second lower protection film LPF2 can be prevented from extending toward the lower direction of the input sensing panel TSP.

[0152] Fig.13 is a plan view illustrating a lower surface of an input sensing unit according to an exemplary embodiment of the present invention.

[0153] refer to Fig.13 The first lower protection film LPF1 is disposed below the input sensing panel TSP. The second lower protection film LPF2 is disposed below the first lower protection film LPF1.

[0154] The first lower protection film LPF1 includes a pull tab PT extending from one side thereof.

[0155] like Fig. 9B and Fig. 10B As shown in FIG, after the reinforcing member SM is formed on the lower surface of the second circuit board FCB2, the first lower protection film LPF1 and the second lower protection film LPF2 are removed.

[0156] At this time, a pull tab PT may be provided on the first lower protection film LPF1 to facilitate removing the first and second lower protection films LPF1 and LPF2 at one time (eg, in parallel or sequentially). The pull tab PT may be provided on at least one of four sides of the first lower protection film LPF1.

[0157] According to various aspects and features of the present invention, the input sensing unit can reinforce the bent portion of the flexible circuit board by disposing a reinforcement member on one side of the input sensing panel and below the flexible circuit board. In an exemplary embodiment, the thickness of the reinforcement member is optimized, and thus the interference phenomenon between the reinforcement member and the protective member for the display panel can be minimized or reduced. Therefore, cracks in the wiring disposed at (e.g., in or above) the bent region of the flexible circuit board of the input sensing unit can be prevented or reduced.

[0158] Although exemplary embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to these exemplary embodiments and that various changes and modifications may be made as will be understood by those skilled in the art without departing from the spirit and scope of the present invention as claimed hereto and its equivalents.

Claims

1. Input sensing equipment, including: An input sensing panel including a plurality of sensing electrodes; a flexible circuit board connected to a first side of the input sensing panel; A first lower protective film, below the input sensing panel; a second lower protective film, below the first lower protective film; as well as a reinforcing member disposed between the lower portion of the flexible circuit board and a second side of the input sensing panel adjacent to the first side and on the lower portion and the second side, the reinforcing member covering a portion of the lower portion of the flexible circuit board, Wherein, a side of any one of the first lower protective film and the second lower protective film facing the reinforcing member is separated from the reinforcing member.

2. The input sensing device of claim 1, wherein: The length of the second lower protective film in a direction parallel to the touch sensing surface of the input sensing panel is shorter than the length of the first lower protective film in the direction, and the side of the second lower protective film facing the reinforcing member is spaced apart from the reinforcing member. 3 . The input sensing device of claim 1 , wherein a thickness of the first lower protective film is smaller than a thickness of the second lower protective film in a direction perpendicular to a touch sensing surface of the input sensing panel. 4 . The input sensing device of claim 3 , the reinforcing member having a thickness at the second side of the input sensing panel corresponding to a sum of a thickness of the flexible circuit board and the thickness of the first lower protective film.

5. The input sensing device of claim 4, wherein: The maximum thickness of the reinforcing member in the direction is 90 μm or less.

6. The input sensing device of claim 4, wherein: The thickness of the reinforcing member decreases as the distance from the second side of the input sensing panel increases.

7. The input sensing device of claim 1, wherein: Each of the first lower protective film and the second lower protective film includes a peelable film.

8. The input sensing device of claim 1, wherein: The first lower protective film includes a pull tab extending from one side of the first lower protective film.

9. The input sensing device of claim 1, wherein: In a direction perpendicular to a touch sensing surface of the input sensing panel, a thickness of the first lower protection film is greater than a thickness of the second lower protection film.

10. The input sensing device of claim 1, wherein: The length of the first lower protective film in a direction parallel to the touch sensing surface of the input sensing panel is shorter than the length of the second lower protective film in the direction, and the side of the first lower protective film facing the reinforcing member is spaced apart from the reinforcing member.

11. The input sensing device of claim 10, wherein: The reinforcing member includes a portion overlapping a portion of the second lower protective film between the input sensing panel and the second lower protective film at the second side of the input sensing panel.

12. The input sensing device of claim 1, further comprising: An upper protective film is on the input sensing panel.

13. Display equipment, including: A display panel including a plurality of pixels; a protective member, on the display panel; an input sensing panel on an upper surface of the display panel and comprising a plurality of sensing electrodes; an adhesive member between the display panel and the input sensing panel, the adhesive member connecting the input sensing panel to the display panel; a flexible circuit board connected to a first side of the input sensing panel; as well as a reinforcing member disposed between the lower portion of the flexible circuit board and a second side of the input sensing panel adjacent to the first side and on the lower portion and the second side, the reinforcing member covering a portion of the lower portion of the flexible circuit board, Wherein, the reinforcing component is separated from the protective component.

14. The display device according to claim 13, wherein: The reinforcing member is also located at a side of the adhesive member adjacent to the second side of the input sensing panel.

15. The display device according to claim 13, wherein: The thickness of the reinforcing member decreases as the distance from the second side of the input sensing panel increases.

16. The display device according to claim 13, wherein: One side of the reinforcing member is on the input sensing panel and the adhesive member to cover a lower end of the second side of the input sensing panel.

17. The display device according to claim 13, further comprising: Main circuit board; as well as a panel flexible circuit board connected to one side of the display panel, wherein the panel flexible circuit board electrically connects the main circuit board to the display panel, Wherein, the flexible circuit board is electrically connected to the main circuit board.

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