Display device

Abstract

A display device is provided. The display device includes: a display panel; a pressure sensor disposed below the display panel and including a first protrusion at one side of the pressure sensor; and a waterproof member disposed below the display panel and including a first accommodating portion located at a side of the waterproof member facing the side of the pressure sensor. The first protrusion of the pressure sensor is disposed to face the first accommodating portion of the waterproof member, and the first protrusion is inserted into the first accommodating portion.

Description

[0001] This application is a divisional application of the invention patent application "Display Device" with application date of August 8, 2019 and application number 201910728968.9. Technical Field

[0002] Exemplary embodiments of the invention generally relate to a display device. Background Art

[0003] Display devices for displaying images are used in various electronic devices (such as smart phones, tablet PCs, digital cameras, notebook computers, navigators, and televisions) for providing images to users. The display device includes a display panel for generating and displaying images and various input devices.

[0004] Recently, in the fields of smart phones and tablet PCs, touch panels that recognize touch inputs have been widely used in display devices. Due to the convenience of touch, the current trend of touch panels is to replace existing physical input devices such as keyboards. Research has been conducted to realize various inputs by installing pressure sensors in addition to touch panels on display devices.

[0005] The above information disclosed in this Background section is only for understanding the background of the inventive concept and therefore it may contain information that does not constitute the prior art. Summary of the invention

[0006] Exemplary embodiments of the invention provide a display device including a pressure sensor having various shapes.

[0007] Additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0008] An exemplary embodiment of the invention provides a display device including: a display panel; a pressure sensor disposed below the display panel and including a first protrusion located at one side of the pressure sensor; and a waterproof member disposed below the display panel and including a first receiving portion located at a side of the waterproof member facing the one side. The first protrusion of the pressure sensor faces the first receiving portion of the waterproof member, and the first protrusion is inserted into the first receiving portion.

[0009] Another exemplary embodiment of the invention provides a display device including: a cover window including a light-transmitting area and a light-blocking area; a display panel disposed below the light-transmitting area; and a pressure sensor disposed below the light-blocking area.

[0010] Another exemplary embodiment of the invention provides a display device, comprising: a display panel; a middle frame disposed below the display panel; a lower cover disposed below the middle frame and comprising a bottom surface and a side surface bent upward from the bottom surface; and a pressure sensor disposed on the side surface of the lower cover.

[0011] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings illustrate exemplary embodiments of the invention and together with the description serve to explain the inventive concept, wherein the accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification.

[0013] Figure 1 is a perspective view of a display device according to an exemplary embodiment of the invention.

[0014] Figure 2 is an exploded perspective view of a display device according to an exemplary embodiment of the invention.

[0015] Figure 3 is a bottom view showing an example of a display panel according to an exemplary embodiment of the invention.

[0016] Figure 4 is a plan view showing an example of a middle frame according to an exemplary embodiment of the invention.

[0017] Figure 5 is a bottom view of a middle frame and a main circuit board according to an exemplary embodiment of the invention.

[0018] Figure 6 is a plan view illustrating a first pressure sensor and a first protrusion according to an exemplary embodiment of the invention.

[0019] Figure 7 is a plan view showing a second pressure sensor and a second protrusion according to an exemplary embodiment of the invention.

[0020] Figure 8 It specifically shows Figure 7 A plan view of area A.

[0021] Fig. 9 It specifically shows Figure 7 A plan view of area B.

[0022] Fig.10 is along Figure 8 A cross-sectional view taken along line II-II'.

[0023] Fig.11 and Fig.12 is an exemplary view illustrating a display device using a first pressure sensor and a second pressure sensor as physical buttons according to an exemplary embodiment of the invention.

[0024] Fig.13 is shown along Figure 3 and Figure 4 A cross-sectional view of the example taken along line II'.

[0025] Fig.14 is an exploded perspective view showing a first accommodating portion of the waterproof member and a portion of the first pressure sensor corresponding to the first accommodating portion of the waterproof member.

[0026] Fig.15 is along Fig.14 A cross-sectional view taken along line III-III'.

[0027] Fig.16 is an exploded perspective view showing a second accommodating portion of the waterproof member and a portion of the second pressure sensor corresponding to the second accommodating portion of the waterproof member.

[0028] Fig.17 is along Fig.16 A cross-sectional view taken along line IV-IV'.

[0029] Fig.18 is a plan view showing a waterproof member and first and second pressure sensors according to another exemplary embodiment of the invention.

[0030] Fig.19 is a plan view showing a waterproof member and first and second pressure sensors according to another exemplary embodiment of the invention.

[0031] Fig. 20 is a plan view showing a waterproof member and first and second pressure sensors according to another exemplary embodiment of the invention.

[0032] Fig.21 is a plan view showing a waterproof member and first and second pressure sensors according to another exemplary embodiment of the invention.

[0033] Fig. 22 is a plan view showing a waterproof member and first and second pressure sensors according to another exemplary embodiment of the invention.

[0034] Fig.23 is an exploded perspective view of a display device according to another exemplary embodiment of the invention.

[0035] Fig.24is a bottom view showing an exemplary embodiment of a cover window and a pressure sensor.

[0036] Fig.25 is along Fig.24 A cross-sectional view taken along line V-V'.

[0037] Fig.26 is along Fig.24 A cross-sectional view taken along line VI-VI'.

[0038] Fig. 27 is a plan view showing the upper surface of the pressure sensor.

[0039] Fig.28 is an exemplary view illustrating a display device using a pressure sensor as a physical button according to an exemplary embodiment of the invention.

[0040] Fig.29 and Fig.30 is a bottom view showing another exemplary embodiment of a cover window and a pressure sensor.

[0041] Fig.31 is a perspective view of a display device according to another exemplary embodiment of the invention.

[0042] Fig.32 is an exploded perspective view of a display device according to another exemplary embodiment of the invention.

[0043] Fig.33 is a plan view schematically showing a lower cover and a pressure sensor provided on the lower cover.

[0044] Fig.34 is along Fig.31 A cross-sectional view taken along line VII-VII'.

[0045] Fig.35 yes Fig.34 An enlarged cross-sectional view of a portion of.

[0046] Fig.36 is a perspective view schematically illustrating a pressure sensor of a display device according to an exemplary embodiment of the invention.

[0047] Fig.37 is a plan view schematically illustrating a lower cover and a pressure sensor disposed on the lower cover according to another exemplary embodiment of the invention.

[0048] Fig.38 is a perspective view schematically illustrating a pressure sensor of a display device according to another exemplary embodiment of the invention.

[0049] Fig.39is a plan view schematically illustrating a lower cover and a pressure sensor provided on the lower cover according to another exemplary embodiment of the invention.

[0050] Fig.40 is a perspective view schematically illustrating a pressure sensor of a display device according to another exemplary embodiment of the invention.

[0051] Fig.41 is a perspective view schematically showing a display device according to another exemplary embodiment of the invention.

[0052] Fig.42 is an exploded perspective view schematically showing a display device according to another exemplary embodiment of the invention.

[0053] Fig.43 is a cross-sectional view schematically showing a display device according to another exemplary embodiment of the invention.

[0054] Fig.44 is a plan view schematically illustrating a pressure sensor of a display device according to another exemplary embodiment of the invention.

[0055] Fig.45 is a view schematically showing the operation of a pressure sensor of another display device. DETAILED DESCRIPTION

[0056] In the following description, for the purpose of explanation, many specific details are set forth to provide a comprehensive understanding of various exemplary embodiments of the invention. As used herein, an "embodiment" is a non-limiting example of a device or method using one or more inventive concepts disclosed herein. However, it is apparent that various exemplary embodiments can be implemented without these specific details or with one or more equivalent arrangements. In other cases, in order to avoid making various exemplary embodiments unnecessarily obscure, known structures and devices are shown in block diagram form. In addition, various exemplary embodiments may be different, but need not be exclusive. For example, without departing from the inventive concept, the specific shape, configuration and features of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0057] Unless otherwise specified, the illustrated exemplary embodiments will be understood as providing exemplary features of details of variations in some ways in which the inventive concept is actually implemented. Therefore, unless otherwise specified, the features, components, modules, layers, films, panels, regions and / or aspects, etc. (hereinafter, individually or collectively referred to as "elements") of various embodiments may be further combined, separated, interchanged and / or rearranged without departing from the inventive concept.

[0058] The use of cross hatching and / or shading is usually provided in the drawings to make the boundaries between adjacent elements clear. Thus, unless otherwise specified, the presence and absence of cross hatching or shading do not express or indicate any preference or requirement for the specific material, material properties, size, ratio, commonality between the elements shown, and / or any other characteristics, attributes, properties, etc. of the elements. In addition, in the drawings, the size and relative size of the elements may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments may be implemented differently, the specific process sequence may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously or in an order opposite to the described order. In addition, the same reference numerals represent the same elements.

[0059] When an element or layer is referred to as being "on" another element or layer, "connected to" or "bonded to" another element or layer, the element or layer may be directly on, directly connected to or directly bonded to the other element or layer, or there may be an intermediate element or intermediate layer. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to" or "directly bonded to" another element or layer, there is no intermediate element or intermediate layer. For this reason, the term "connected" may refer to a physical connection, an electrical connection and / or a fluid connection with or without an intermediate element. In addition, the D1 axis, the D2 axis and the D3 axis are not limited to the three axes of a rectangular coordinate system (such as the X axis, the Y axis and the Z axis), and may be interpreted in a broader sense. For example, the D1 axis, the D2 axis and the D3 axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purpose of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be understood as any combination of only X, only Y, only Z, or two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ. As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items.

[0060] Although the terms "first", "second", etc. may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Therefore, without departing from the disclosed teachings, the first element discussed below may be named as the second element.

[0061] For descriptive purposes, spatially relative terms such as "under," "below," "under," "below," "above," "upper," "above," "higher," "side" (e.g., as in "sidewall"), etc., may be used herein to describe the relationship of one element to another (other) element as shown in the accompanying drawings. Spatially relative terms are intended to include different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as "under" or "below" other elements or features will then be positioned as "above" the other elements or features. Thus, the exemplary term "under" can include both above and below orientations. In addition, the device can be positioned otherwise (e.g., rotated 90 degrees or at other orientations), so the spatially relative descriptors used herein are interpreted accordingly.

[0062] The terms used here are for the purpose of describing specific embodiments, and are not intended to be limited. As used here, unless the context clearly indicates otherwise, the singular forms "one", "one (kind / person)" and "the (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, elements, components and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, elements, components and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms rather than as terms of degree, so that they are used to explain the inherent deviations of measured values, calculated values ​​and / or provided values ​​that will be recognized by those of ordinary skill in the art.

[0063] Various exemplary embodiments are described herein with reference to cross-sectional views and / or exploded illustrations as schematic diagrams of idealized exemplary embodiments and / or intermediate structures. As such, variations in the shapes of the illustrations, such as those caused by manufacturing techniques and / or tolerances, will be expected. Therefore, the exemplary embodiments disclosed herein should not necessarily be interpreted as being limited to the shapes of the specifically illustrated regions, but will include deviations in shape caused by, for example, manufacturing. In this way, the regions shown in the drawings may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the regions of the device, and as such, no limitation is necessarily intended.

[0064] As is customary in the art, some exemplary embodiments are described and shown in the accompanying drawings with functional blocks, units and / or modules. It will be understood by those skilled in the art that these blocks, units and / or modules are physically implemented by electronic (or optical) circuits such as logic circuits, discrete components, microprocessors, hard-wired circuits, memory elements, wiring connections, etc., which can be formed using semiconductor-based manufacturing techniques or other manufacturing techniques. In the case where blocks, units and / or modules are implemented by microprocessors or other similar hardware, they can be programmed and controlled using software (e.g., microcode) to perform the various functions discussed herein, and they can be optionally driven by firmware and / or software. It is also contemplated that each block, unit and / or module can be implemented by dedicated hardware, or as a combination of dedicated hardware that performs certain functions and processors that perform other functions (e.g., one or more programmed microprocessors and related circuits). In addition, without departing from the scope of the inventive concept, each block, unit and / or module of some exemplary embodiments can be physically separated into two or more interactive and discrete blocks, units and / or modules. Furthermore, the blocks, units and / or modules of some exemplary embodiments may be physically combined into more complex blocks, units and / or modules without departing from the scope of the inventive concept.

[0065] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this disclosure is a part. Unless expressly defined as such herein, terms (such as those defined in general dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an ideal or overly formal sense.

[0066] It will be apparent to those skilled in the art that various modifications and variations may be made to the disclosed embodiments without departing from the spirit and scope of the inventive concept. Therefore, as long as the modifications and variations of the disclosed embodiments fall within the scope of the appended claims and their equivalents, the inventive concept is intended to cover these modifications and variations.

[0067] Throughout the specification, the same reference numerals are used for the same or like elements.

[0068] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

[0069] Figure 1 is a perspective view of a display device according to an exemplary embodiment, Figure 2 is an exploded perspective view of a display device according to an exemplary embodiment.

[0070] Reference Figure 1 and Figure 2 According to an exemplary embodiment, the display device 10 includes a cover window 100, a touch sensing unit 200, a touch circuit board 210, a touch driving unit 220, a display panel 300, a display circuit board 310, a display driving unit 320, a pressure sensing unit 330, a pressure sensor, a pressure sensing circuit board 550, a middle frame 600, a main circuit board 700 and a lower cover 900.

[0071] In this specification, "on", "above", "top", "upper side" or "upper surface" refers to the direction along which the cover window 100 is set relative to the display panel 300 (i.e., the Z-axis direction), and "under", "below", "bottom", "lower side" or "lower surface" refers to the direction along which the middle frame 600 is set relative to the display panel 300 (i.e., the direction opposite to the Z-axis direction). In addition, "left", "right", "upper" and "lower" refer to directions when the display panel 300 is viewed from a plane. For example, "left" refers to the direction opposite to the X-axis direction, "right" refers to the X-axis direction, "upper" refers to the Y-axis direction, and "lower" refers to the direction opposite to the Y-axis direction.

[0072] The display device 10 may have a rectangular shape in a plan view. Figure 1 and Figure 2 As shown in , the display device 10 may have a rectangular planar shape having a short side in a first direction (X-axis direction) and a long side in a second direction (Y-axis direction). The edge where the short side in the first direction (X-axis direction) intersects the long side in the second direction (Y-axis direction) may be formed into a rounded shape having a predetermined curvature or have a right angle shape. The planar shape of the display device 10 is not limited to a rectangular shape, but may be formed into another polygonal shape, a circular shape, or an elliptical shape.

[0073] The display device 10 may include a first region DR1 formed to be flat and a second region DR2 extending from the right and left sides of the first region DR1. The second region DR2 may be formed to be flat or curved. When the second region DR2 is formed to be flat, an angle formed by the first region DR1 and the second region DR2 may be an obtuse angle. When the second region DR2 is formed to be curved, the second region DR2 may have a constant curvature or a variable curvature.

[0074] Although Figure 1, the second region DR2 is shown to extend from the left and right sides of the first region DR1, but the inventive concept is not limited thereto. That is, the second region DR2 may extend from only one of the left and right sides of the first region DR1. In addition, the second region DR2 may extend from only one of the upper and lower sides of the first region DR1 and from only one of the left and right sides of the first region DR1. Hereinafter, it is assumed that the second region DR2 is disposed along the left and right edges of the display device 10.

[0075] The cover window 100 may be disposed on the display panel 300 to cover the upper surface of the display panel 300. Therefore, the cover window 100 may function to protect the upper surface of the display panel 300. The cover window 100 may be provided by Fig.13 The first adhesive member 910 shown in FIG. 8 is attached to the touch sensing unit 200. The first adhesive member 910 may be an optically clear adhesive (OCA) film or an optically clear resin (OCR) film.

[0076] The cover window 100 may include a light-transmitting area DA100 corresponding to the display panel 300 and a light-blocking area NDA100 corresponding to an area other than the display panel 300. The cover window 100 may be disposed in the first area DR1 and the second area DR2, and the light-transmitting area DA100 may be disposed in a portion of the first area DR1 and a portion of the second area DR2. The light-blocking area NDA100 may be formed to be opaque. Alternatively, the light-blocking area NDA100 may be formed as a decorative layer having a pattern that can be seen by the user when the image is not displayed. For example, a company logo or various characters such as "SAMSUNG" may be patterned on the light-blocking area NDA100. In addition, the light-blocking area NDA100 may be provided with a plurality of holes HH for exposing a front camera (front camera or front camera), a front speaker (front speaker), an infrared sensor, an iris recognition sensor, an ultrasonic sensor, an illuminance sensor, etc., but the present invention is not limited thereto. For example, some or all of a front camera, a front speaker, an infrared sensor, an iris recognition sensor, an ultrasonic sensor, and an illumination sensor may be installed in the display panel 300. In this case, some or all of the plurality of holes HH may be omitted.

[0077] The cover window 100 may be made of glass, sapphire and / or plastic. The cover window 100 may be rigid or flexible.

[0078] The touch sensing unit 200 may be disposed between the cover window 100 and the display panel 300. The touch sensing unit 200 may be disposed in the first region DR1 and the second region DR2. Therefore, the touch sensing unit 200 may sense a user's touch in the second region DR2 as well as the first region DR1.

[0079] The touch sensing unit 200 may be Fig.13 The first adhesive member 910 shown in FIG. is attached to the lower surface of the cover window 100. A polarizing film may be additionally provided on the touch sensing unit 200 to prevent degradation of visibility due to reflection of external light. In this case, the polarizing film may be attached to the lower surface of the cover window 100 by the first adhesive member 910.

[0080] The touch sensing unit 200 is a unit for sensing a user's touch position, and may be implemented as a capacitive type, such as a self-capacitive type or a mutual-capacitive type. When the touch sensing unit 200 is implemented as a self-capacitive type, the touch sensing unit 200 may include only a touch drive electrode, but when the touch sensing unit 200 is implemented as a mutual-capacitive type, the touch sensing unit 200 may include both a touch drive electrode and a touch sensing electrode. Hereinafter, the touch sensing unit 200 will be described assuming that the touch sensing unit 200 is implemented as a mutual-capacitive type.

[0081] The touch sensing unit 200 may be a panel type or a film type. In this case, the touch sensing unit 200 may be Fig.13 The second adhesive member 920 shown in FIG. 1 is attached to the thin film encapsulation layer of the display panel 300. The second adhesive member 920 may be an optically clear adhesive (OCA) film or an optically clear resin (OCR) film.

[0082] The touch sensing unit 200 may be integrally formed with the display panel 300. In this case, the touch driving electrode and the touch sensing electrode of the touch sensing unit 200 may be provided on the thin film encapsulation layer of the display panel 300.

[0083] The touch circuit board 210 may be attached to one side of the touch sensing unit 200. Specifically, the touch circuit board 210 may be attached to a pad (or "pad") provided on one side of the touch sensing unit 200 using an anisotropic conductive film. In addition, the touch circuit board 210 may be provided with a touch connection portion, which may be connected to the touch connection member 312a of the display circuit board 310. The touch circuit board 210 may be a flexible printed circuit board.

[0084] The touch drive unit 220 may apply a touch drive signal to the touch drive electrode of the touch sensing unit 200, sense a sensing signal from the touch sensing electrode of the touch sensing unit 200, and analyze the sensing signal to calculate a touch position of the user. The touch drive unit 220 may be formed as an integrated circuit and mounted on the touch circuit board 210.

[0085] The display panel 300 may be disposed under the touch sensing unit 200. The display panel 300 may be disposed to overlap the light-transmitting area DA100 of the cover window 100. The display panel 300 may be disposed in the first region DR1 and the second region DR2. Therefore, an image of the display panel 300 may be seen not only in the first region DR1 but also in the second region DR2.

[0086] The display panel 300 may be a light-emitting display panel including a light-emitting element. Examples of the display panel 300 may include an organic light-emitting display panel using an organic light-emitting diode, an ultra-small light-emitting diode display panel using a micro LED, or a quantum dot light-emitting diode display panel using a quantum dot light-emitting diode.

[0087] The display panel 300 may include a substrate, and a thin film transistor layer, a light emitting element layer, and a thin film encapsulation layer disposed on the substrate.

[0088] Since the display panel 300 is implemented to have flexibility, the display panel 300 may be formed of plastic. In this case, the substrate may include a flexible substrate and a supporting substrate. Since the supporting substrate is used to support the flexible substrate, the supporting substrate may have a lower flexibility than the flexible substrate. For example, each of the flexible substrate and the supporting substrate may include polyethersulfone (PES), polyacrylate (PA), polyarylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polyphenylene sulfide (PPS), polyallylate, polyimide (PI), polycarbonate (PC), cellulose triacetate (CAT), cellulose acetate propionate (CAP) or a combination thereof.

[0089] The thin film transistor layer is disposed on the substrate. The thin film transistor layer may include a scan line, a data line and a thin film transistor. Each thin film transistor includes a gate electrode, a semiconductor layer, and a source electrode and a drain electrode. When the scan driving unit is directly formed on the substrate, the scan driving unit may be formed together with the thin film transistor layer.

[0090] The light-emitting element layer is disposed on the thin film transistor layer. The light-emitting element layer includes an anode electrode, a light-emitting layer, a cathode electrode and a dike-shaped member. The light-emitting layer may include an organic light-emitting layer including an organic material. For example, the light-emitting layer may include a hole injection layer, a hole transport layer, an organic light-emitting layer, an electron transport layer and an electron injection layer. The hole injection layer and the electron injection layer may be omitted. When a voltage is applied to the anode electrode and the cathode electrode, holes and electrons are respectively transmitted to the organic light-emitting layer through the hole transport layer and the electron transport layer, and the holes and electrons are combined with each other in the organic light-emitting layer to emit light. The light-emitting element layer may be a pixel array layer in which pixels are formed, and thus the area in which the light-emitting element layer is formed may be defined as a display area for displaying an image. The area surrounding the display area may be defined as a non-display area.

[0091] The thin film encapsulation layer is disposed on the light emitting element layer. The thin film encapsulation layer is used to prevent oxygen or moisture from penetrating into the light emitting element layer. The thin film encapsulation layer may include at least one inorganic film and at least one organic film.

[0092] The display circuit board 310 may be attached to one side of the display panel 300. Specifically, the display circuit board 310 may be attached to a pad disposed at one side of the display panel 300 using an anisotropic conductive film. The touch circuit board 210 may also be bent to the lower surface of the display panel 300, and a touch connection portion disposed at one end of the touch circuit board 210 may be connected to a touch connection member 312a of the display circuit board 310. This will be referred to later. Figure 3 and Figure 4 The details of the display circuit board 310 are described.

[0093] The display driving unit 320 outputs a signal and a voltage for driving the display panel 300 through the display circuit board 310. The display driving unit 320 may be formed as an integrated circuit and mounted on the display circuit board 310, but the inventive concept is not limited thereto. For example, the display driving unit 320 may be directly mounted on the substrate of the display panel 300, in which case the display driving unit 320 may be attached to the upper surface or the lower surface of the substrate of the display panel 300.

[0094] like Fig.13 As shown in FIG. 1 , the panel lower member 390 may be disposed under the display panel 300. The panel lower member 390 may be attached to the lower surface of the display panel 300 by a third adhesive member 930. The third adhesive member 930 may be an optically clear adhesive (OCA) film or an optically clear resin (OCR) film.

[0095] The panel lower member 390 may include at least one of a light absorbing member for absorbing external light, a buffer member for absorbing external impact, a heat dissipating member for effectively dissipating heat of the display panel 300 , and a light blocking layer for blocking external light.

[0096] The light absorbing member may be disposed under the display panel 300. The light absorbing member suppresses transmission of light to prevent components disposed under the light absorbing member (i.e., the first pressure sensor 510, the second pressure sensor 520, the display circuit board 310, etc.) from being seen from above the display panel 300. The light absorbing member may include a light absorbing material such as a black pigment or dye.

[0097] The buffer member may be disposed below the light absorbing member. The buffer member absorbs external impact to prevent the display panel 300 from being damaged. The buffer member may be composed of a single layer or a plurality of layers. For example, the buffer member may be formed of a polymer resin such as polyurethane, polycarbonate, polypropylene, or polyethylene, or may be formed of an elastic material such as rubber, a polyurethane material, or a sponge formed by foaming an acrylic material. The buffer member may be a cushion layer.

[0098] The heat dissipation member may be disposed under the buffer member. The heat dissipation member may include a first heat dissipation layer including graphite or carbon nanotubes and a second heat dissipation layer capable of blocking electromagnetic waves and formed of a metal thin film of copper, nickel, ferrite or silver having excellent thermal conductivity.

[0099] In an exemplary embodiment, the pressure sensor may include a first pressure sensor 510 and a second pressure sensor 520. The first pressure sensor 510 and the second pressure sensor 520 may be disposed in the second region DR2. That is, the first pressure sensor 510 may be disposed below the display panel 300 at the right edge of the display panel 300. The second pressure sensor 520 may be disposed below the display panel 300 at the left edge of the display panel 300. The first pressure sensor 510 and the second pressure sensor 520 may be disposed to face each other in a first direction (X-axis direction).

[0100] The first pressure sensor 510 and the second pressure sensor 520 may be attached to the lower surface of the panel lower member 390. The first pressure sensor 510 and the second pressure sensor 520 may be connected to the display circuit board 310 through the pressure sensing circuit board 550. Figure 3 5 shows that the first pressure sensor 510 and the second pressure sensor 520 are connected to one pressure sensing circuit board 550 , but the inventive concept is not limited thereto. The first pressure sensor 510 and the second pressure sensor 520 may be connected to the display circuit board 310 through different pressure sensing circuit boards 550 .

[0101] like Figure 3As shown in FIG, a pressure sensing unit 330 for sensing pressure by driving a first pressure sensor 510 and a second pressure sensor 520 may be mounted on a display circuit board 310. In this case, the pressure sensing unit 330 may be formed as an integrated circuit. The pressure sensing unit 330 may be integrated with the display driving unit 320 to form one integrated circuit.

[0102] Alternatively, the pressure sensing circuit board 550 may be connected to the touch circuit board 210 instead of the display circuit board 310. In this case, the pressure sensing unit 330 may be mounted on the touch circuit board 210. The pressure sensing unit 330 may be integrated with the touch driving unit 220 to form one integrated circuit.

[0103] The first pressure sensor 510 and the second pressure sensor 520 may include a connection portion CN and a plurality of pressure sensing cells CE protruding from the connection portion CN. The plurality of pressure sensing cells CE may be spaced apart from each other.

[0104] The middle frame 600 may be disposed under the panel lower member 390. The middle frame 600 may include synthetic resin, metal, or both.

[0105] The waterproof member 400 may be disposed at an edge of the middle frame 600. The waterproof member 400 may be disposed outside the first pressure sensor 510 and outside the second pressure sensor 520. The waterproof member 400 may be attached to the lower surface of the panel lower member 390 and the upper surface of the middle frame 600. Figure 4 As shown in FIG. 4 , the waterproof member 400 may include a plurality of receiving portions GR1 and GR2, which may receive a plurality of protrusions of the first pressure sensor 510 and the second pressure sensor 520. Each of the plurality of protrusions may be provided with a pressure sensing unit CE. The pressure sensing unit CE may be inserted and received in the receiving portions GR1 and GR2.

[0106] according to Figure 1 and Figure 2 In the exemplary embodiment shown in FIG. 1 , the waterproof member 400 is disposed outside the first pressure sensor 510 and outside the second pressure sensor 520, and the pressure sensing unit CE disposed at the protrusion of the first pressure sensor 510 and the second pressure sensor 520 is inserted and accommodated in the accommodation parts GR1 and GR2, thereby being able to prevent water or dust from penetrating between the display panel 300 and the middle frame 600 without being limited by the space. That is, a waterproof and dustproof display device 10 can be provided.

[0107] The middle frame 600 may be provided with a first camera hole CMH1 into which the camera device 720 is inserted, a battery hole BH through which heat is discharged from the battery, and a cable hole CAH through which the second connection cable 314 connected to the display circuit board 310 passes. Specifically, the cable hole CAH may be provided at the right edge of the middle frame 600, in which case the cable hole CAH may be covered by the first pressure sensor 510 provided under the panel lower member 390 at the right edge of the display panel 300. Therefore, the first pressure sensor 510 may include a first notch portion concavely formed in a notch shape at one side of the first pressure sensor 510 to expose the cable hole CAH without covering the cable hole CAH.

[0108] In addition, the middle frame 600 is disposed under the panel lower member 390 of the display panel 300, the first pressure sensor 510, and the second pressure sensor 520. When pressure is applied to the first pressure sensor 510 and the second pressure sensor 520, the middle frame 600 may support the first pressure sensor 510 and the second pressure sensor 520. Therefore, the first pressure sensor 510 and the second pressure sensor 520 may sense the applied pressure.

[0109] The main circuit board 700 may be disposed under the middle frame 600. The main circuit board 700 may be a printed circuit board or a flexible printed circuit board.

[0110] The main circuit board 700 may include a main processor 710, a camera device 720, and a main connector 730. The main processor 710 and the main connector 730 may be disposed on the lower surface of the main circuit board 700 facing the lower cover 900. The camera device 720 may be disposed on both the upper and lower surfaces of the main circuit board 700.

[0111] The main processor 710 may control all functions of the display device 10. For example, the main processor 710 may output image data to the display driving unit 320 of the display circuit board 310 so that the display panel 300 displays an image. In addition, the main processor 710 may receive touch data from the touch driving unit 220, determine the user's touch position, and then execute an application indicated by an icon displayed at the user's touch position. In addition, the main processor 710 may receive pressure sensing data from the touch driving unit 220 or the display driving unit 320, and may control the display device 10 to output a main screen, control the volume of the sound of the display device 10, or implement a sense of touch. The main processor 710 may be an application processor, a central processing unit, or a system chip including an integrated circuit.

[0112] The camera device 720 processes image frames such as still images or moving images obtained by an image sensor in a camera mode and outputs the processed image frames to the main processor 710 .

[0113] The second connection cable 314 having passed through the cable hole CAH of the middle frame 600 may be connected to the main connector 730 provided on the lower surface of the main circuit board 700 through the gap between the middle frame 600 and the main circuit board 700. Therefore, the main circuit board 700 may be electrically connected to the display circuit board 310 and the touch circuit board 210.

[0114] In addition, the main circuit board 700 may also be provided with a mobile communication module capable of sending / receiving radio frequency signals to / from at least one of a base station, an external terminal, and a server. The radio frequency signal may include various types of data depending on voice signals, video call signals, or text / multimedia message transmission / reception. In addition, the main circuit board 700 may also be provided with an acoustic output device capable of outputting sound and a vibration device capable of generating vibrations for tactile realization.

[0115] The lower cover 900 may be disposed under the middle frame 600 and the main circuit board 700. The lower cover 900 may be coupled and fixed to the middle frame 600. The lower cover 900 may form a lower surface appearance of the display device 10. The lower cover 900 may include plastic and / or metal.

[0116] The lower cover 900 may be provided with a second camera hole CMH2 into which the camera device 720 is inserted to protrude outward. The position of the camera device 720 and the positions of the first camera hole CMH1 and the second camera hole CMH2 corresponding to the camera device 720 are limited to Figure 1 , Figure 2 , Figure 4 and Figure 5 An exemplary embodiment is shown in .

[0117] Figure 3 is a bottom view illustrating an example of a display panel according to an exemplary embodiment. Figure 4 is a plan view illustrating an example of a middle frame according to an exemplary embodiment. Figure 5 is a bottom view of a middle frame and a main circuit board according to an exemplary embodiment.

[0118] In the following, reference will be made to Figures 3 to 5 The connection between the display circuit board 310 and the pressure sensing circuit board 550 and the connection between the second connection cable 314 and the main connection member 730 of the main circuit board 700 are described in detail. Figure 4 is a plan view, and Figure 3 and Figure 5 This is a bottom view, so please note that Figure 3 and Figure 5 Shows Figure 4 The left and right sides of the display device 10 are reversed. Figure 4 In FIG. 1 , the display circuit board 310 is indicated by a dotted line, and in FIG. Figure 5 In FIG. 3 , the second connection cable 314 is indicated by a dotted line.

[0119] Reference Figures 3 to 5 The display circuit board 310 may include a first circuit board 311 , a second circuit board 312 , and a first connection cable 313 .

[0120] The first circuit board 311 may be attached to one side of the upper surface or the lower surface of the substrate of the display panel 300, and may be bent toward the lower surface of the substrate of the display panel 300. Figure 4 As shown in FIG. 6 , the first circuit board 311 may be fixed to a fixing hole FH formed in the middle frame 600 by a fixing member.

[0121] The first circuit board 311 may include a first connector 311 a and a second connector 311 b . The display driving unit 320 , the pressure sensing unit 330 , the first connector 311 a and the second connector 311 b may be disposed on one surface of the first circuit board 311 .

[0122] The first connector 311a may be connected to one end of the first connection cable 313 connected to the second circuit board 312. Therefore, the display driving unit 320 and the pressure sensing unit 330 mounted on the first circuit board 311 may be electrically connected to the second circuit board 312 through the first connection cable 313.

[0123] The second connector 311b may be connected to one end of the pressure sensing circuit board 550 connected to the first pressure sensor 510 and the second pressure sensor 520. Therefore, the first pressure sensor 510 and the second pressure sensor 520 may be electrically connected to the pressure sensing unit 330.

[0124] The second circuit board 312 may include a touch connector 312a, a first connection connector 312b, and a second connection connector 312c. The first connection connector 312b and the second connection connector 312c may be disposed on one surface of the second circuit board 312, and the touch connector 312a may be disposed on another surface of the second circuit board 312.

[0125] The touch connector 312a may be connected to a touch connection portion provided at one end of the touch circuit board 210. Therefore, the touch driving unit 220 may be electrically connected to the second circuit board 312.

[0126] The first connection connector 312b may be connected to the other end of the first connection cable 313 connected to the first circuit board 311. Therefore, the display driving unit 320 and the pressure sensing unit 330 mounted on the first circuit board 311 may be electrically connected to the second circuit board 312 through the first connection cable 313.

[0127] The second connection connector 312c may be connected to one end of the second connection cable 314 connected to the main connection connector 730 of the main circuit board 700. Therefore, the second circuit board 312 may be electrically connected to the main circuit board 700 through the second connection cable 314.

[0128] A connector connecting portion 315 may be formed at the other end of the second connecting cable 314. Figure 3 and Figure 4 As shown in FIG. 1 , the connector connecting portion 315 of the second connection cable 314 may extend to the lower surface of the middle frame 600 through the cable hole CAH of the middle frame 600. Since the first pressure sensor 510 may be provided therein with the first notch portion NTH1 having a notch shape in a region corresponding to the cable hole CAH of the middle frame 600, the cable hole CAH of the middle frame 600 may be exposed without being covered by the first pressure sensor 510.

[0129] In addition, because a gap is formed between the middle frame 600 and the main circuit board 700, the connector connecting portion 315 of the second connection cable 314 having passed through the cable hole CAH can come out from the gap between the middle frame 600 and the main circuit board 700, and can extend to the lower surface of the main circuit board 700. Finally, the connector connecting portion 315 of the second connection cable 314 can be connected to the main connector 730 provided on the lower surface of the main circuit board 700.

[0130] according to Figures 3 to 5 In the exemplary embodiment shown in , a first notch portion NTH1 having a notch shape is formed at one side of the first pressure sensor 510 so as not to cover the cable hole CAH of the middle frame 600. Therefore, the second connection cable 314 connected to the display circuit board 310 may extend to the lower surface of the middle frame 600 through the cable hole CAH, and thus may be connected to the main connection member 730 of the main circuit board 700. Therefore, the display circuit board 310 and the main circuit board 700 may be stably connected to each other.

[0131] Each of the first pressure sensor 510 and the second pressure sensor 520 may include a connection portion CN and a protrusion disposed on one side of the connection portion CN. According to the shape of each protrusion, the pressure sensing unit CE is respectively disposed in the protrusion. Hereinafter, the shape of the pressure sensing unit CE will be described as an example. It should be understood that each protrusion has a shape corresponding to the shape of each pressure sensing unit CE.

[0132] The first pressure sensor 510 may include a connection portion CN extending in the second direction (Y-axis direction) and a plurality of pressure sensing units CE protruding from the connection portion CN in the first direction (X-axis direction), and the second pressure sensor 520 may include a connection portion CN extending in the second direction (Y-axis direction) and a plurality of pressure sensing units CE protruding from the connection portion CN in a direction opposite to the first direction (X-axis direction). However, the inventive concept is not limited thereto, and the plurality of pressure sensing units CE may protrude in various directions depending on the positions where the first pressure sensor 510 and the second pressure sensor 520 are disposed.

[0133] In an exemplary embodiment, among the plurality of pressure sensing units CE, the shape of the pressure sensing unit CE disposed at the upper end in the second direction (Y-axis direction) may be different from the shape of the pressure sensing unit CE disposed at the lower end in the second direction (Y-axis direction). For example, the pressure sensing unit CE disposed at the upper end may have a circular shape, while the pressure sensing unit CE disposed at the lower end may have a rectangular shape. However, the inventive concept is not limited thereto, and the pressure sensing unit CE may have various shapes, such as an elliptical shape and a polygonal shape. The plurality of pressure sensing units CE may alternate with each other in the second direction (Y-axis direction), may have different shapes, and may have different shapes in groups.

[0134] The plurality of pressure sensing units CE may be spaced apart from each other and may have different sizes from each other. For example, the plurality of pressure sensing units CE may have the same shape but different sizes, or may have different shapes and different sizes.

[0135] The waterproof member 400 may include a plurality of receiving portions GR1 and GR2 facing inward. For example, the waterproof member 400 may include a first short side 400a and a second short side 400b facing each other and extending in a first direction (X-axis direction), and a first long side 400c and a second long side 400d connecting the first short side 400a and the second short side 400b in a second direction (Y-axis direction) and facing each other, and the plurality of receiving portions GR1 and GR2 may be disposed inside the first long side 400c and the second long side 400d. However, the inventive concept is not limited thereto. Multiple accommodating portions GR1 and GR2 can be set in one of the first long side 400c and the second long side 400d, can be set in at least one of the first short side 400a and the second short side 400b, can be set in three sides of the first short side 400a, the second short side 400b, the first long side 400c and the second long side 400d, and can be set in each of the first short side 400a, the second short side 400b, the first long side 400c and the second long side 400d.

[0136] In an exemplary embodiment, the plurality of receiving portions GR1 and GR2 may include a first receiving portion GR1 and a second receiving portion GR2, and the first receiving portion GR1 and the second receiving portion GR2 may have shapes different from each other. For example, the first receiving portion GR1 may be disposed at an upper end in the second direction (Y-axis direction), and the second receiving portion GR2 may be disposed at a lower end in the second direction (Y-axis direction). In addition, the first receiving portion GR1 may have a circular shape, and the second receiving portion GR2 may have a rectangular shape. However, the inventive concept is not limited thereto. The first receiving portion GR1 and the second receiving portion GR2 may have various shapes, such as an elliptical shape and a polygonal shape. The first receiving portion GR1 and the second receiving portion GR2 may have different shapes and may be alternately disposed in the second direction (Y-axis direction). The first receiving portion GR1 and the second receiving portion GR2 may have the same shape.

[0137] The first receiving portion GR1 and the second receiving portion GR2 may be spaced apart from each other and may have different sizes from each other. For example, the first receiving portion GR1 and the second receiving portion GR2 may have the same shape but different sizes, or may have different shapes and sizes.

[0138] In an exemplary embodiment, since the pressure sensing units CE provided at the protrusions of the first pressure sensor 510 and the second pressure sensor 520 are respectively inserted into the plurality of receiving portions GR1 and GR2 of the waterproof member 400, it is preferred that the shapes of the plurality of pressure sensing units CE are formed to correspond to the shapes of the receiving portions GR1 and GR2 of the waterproof member 400, but the present invention is not limited thereto. For example, when the plurality of pressure sensing units CE are inserted into one receiving portion GR1 or GR2 in units of a group, the shape of each of the plurality of pressure sensing units CE may be different from the shape of the receiving portion GR1 or GR2.

[0139] Figure 6 is a plan view showing a first pressure sensor and a first protrusion according to an exemplary embodiment, Figure 7 is a plan view illustrating a second pressure sensor and a second protrusion according to an exemplary embodiment.

[0140] Reference Figure 6 , the first pressure sensor 510 of the exemplary embodiment may include a connection portion CN extending in the second direction (Y-axis direction) and a plurality of pressure sensing units protruding from the connection portion CN in the first direction (X-axis direction).

[0141] The connection portion CN of the first pressure sensor 510 may have a rectangular planar shape having a short side in the first direction (X-axis direction) and a long side in the second direction (Y-axis direction). However, the planar shape of the connection portion CN is not limited thereto but may vary depending on the location of application.

[0142] In an exemplary embodiment, the first pressure sensor 510 includes ten pressure sensing units CE1 to CE8c, but the number of the pressure sensing units is not limited thereto.

[0143] Each of the plurality of pressure sensing units CE1 to CE8c of the first pressure sensor 510 can independently sense the pressure at a corresponding position. Figure 6 FIG. 4 shows that the pressure sensing units CE1 to CE8c are arranged in a row, but the inventive concept is not limited thereto. If necessary, the pressure sensing units CE1 to CE8c may be arranged in multiple rows. Each pressure sensing unit CE1 to CE8c may be arranged as follows: Figure 6 As shown in FIG. 1 , they are spaced apart from each other at predetermined intervals, or may be continuously arranged.

[0144] In an exemplary embodiment, among the plurality of pressure sensing units CE1 to CE8c of the first pressure sensor 510, the shapes of the pressure sensing units CE1 to CE7 disposed at the upper end in the second direction (Y-axis direction) may be different from the shapes of the pressure sensing units CE8a, CE8b, and CE8c disposed at the lower end in the second direction (Y-axis direction). For example, the shapes of the pressure sensing units CE1 to CE7 disposed at the upper end may be circular, and the shapes of the pressure sensing units CE8a, CE8b, and CE8c disposed at the lower end may be rectangular. However, the inventive concept is not limited thereto.

[0145] Depending on the application, the pressure sensing units CE1 to CE8c may have different shapes and areas. Fig.11 As shown in FIG. 1 , the circular first to seventh pressure sensing units CE1 to CE7 may be used as physical buttons (such as volume control buttons VB+ and VB- or a power button PB) provided on an edge of one side of the display device 10. Alternatively, as shown in FIG. Fig.12 As shown in FIG. 8 , the rectangular eighth to tenth pressure sensing cells CE8 a , CE8 b , and CE8 c may be used as buttons for sensing a user's squeezing pressure.

[0146] Although in Figure 6 , it is shown that the circular first pressure sensing unit CE1 to the circular seventh pressure sensing unit CE7 used as physical buttons are formed to have the same area, but the inventive concept is not limited thereto. That is, the areas of the first pressure sensing unit CE1 to the seventh pressure sensing unit CE7 may be different from each other. Alternatively, the areas of some of the first pressure sensing units CE1 to the seventh pressure sensing units CE7 are equal to each other, and the areas of the other pressure sensing units of the first pressure sensing units CE1 to the seventh pressure sensing units CE7 are equal to each other, but the area of ​​each of some of the first pressure sensing units CE1 to the seventh pressure sensing units CE7 and the area of ​​each of the other pressure sensing units of the first pressure sensing units CE1 to the seventh pressure sensing units CE7 may be different from each other.

[0147] In addition, although Figure 68 to 10 pressure sensing cells CE8a, CE8b and CE8c are formed to have the same area, but the inventive concept is not limited thereto. That is, the areas of the eighth to tenth pressure sensing cells CE8a, CE8b and CE8c may be different from each other. Alternatively, the areas of some of the rectangular pressure sensing cells CE8a, CE8b and CE8c are equal to each other, while the areas of other of the rectangular pressure sensing cells CE8a, CE8b and CE8c are equal to each other, but the areas of some of the rectangular pressure sensing cells CE8a, CE8b and CE8c are different from the areas of other of the rectangular pressure sensing cells CE8a, CE8b and CE8c.

[0148] The plurality of first protrusions 530 may be disposed on the first to tenth pressure sensing cells CE1 to CE8c to overlap with the first to tenth pressure sensing cells CE1 to CE8c. The plurality of first protrusions 530 may be used to press the first to tenth pressure sensing cells CE1 to CE8c according to the pressure of the user. Therefore, the pressure of the user may be sensed by the first to tenth pressure sensing cells CE1 to CE8c.

[0149] In order to increase the pressure applied to the first to tenth pressure sensing cells CE1 to CE8c by each of the plurality of first protrusions 530, each of the plurality of first protrusions 530 may be formed to have an area smaller than that of each of the first to tenth pressure sensing cells CE1 to CE8c. Each of the plurality of first protrusions 530 may be formed to have an area smaller than that of the pressure sensing layer of each of the first to tenth pressure sensing cells CE1 to CE8c. However, the inventive concept is not limited thereto.

[0150] In an exemplary embodiment, the plurality of first protrusions 530 may have shapes corresponding to the shapes of the first to tenth pressure sensing cells CE1 to CE8c, respectively. For example, the first protrusions 530 respectively disposed on the first to seventh pressure sensing cells CE1 to CE7 may have circular shapes corresponding to the shapes of the first to seventh pressure sensing cells CE1 to CE7, and the first protrusions 530 respectively disposed on the eighth to tenth pressure sensing cells CE8a, CE8b, and CE8c may be rectangular shapes corresponding to the shapes of the eighth to tenth pressure sensing cells CE8a, CE8b, and CE8c. However, the inventive concept is not limited thereto. The first protrusions 530 respectively disposed on the first to seventh pressure sensing cells CE1 to CE7 may be rectangular shapes, the first protrusions 530 respectively disposed on the eighth to tenth pressure sensing cells CE8a, CE8b, and CE8c may be circular shapes, and all the first protrusions 530 respectively disposed on the first to tenth pressure sensing cells CE1 to CE8c may have the same shape.

[0151] In order not to cover the cable hole CAH of the middle frame 600 , a first notch portion NTH1 having a notch shape may be formed in the first pressure sensor 510 in a region corresponding to the cable hole CAH of the middle frame 600 .

[0152] at the same time, Figure 7 The second pressure sensor 520 and the second protrusion 540 shown in FIG. Figure 6 The first pressure sensor 510 and the first protrusion 530 shown in FIG. 5 are different in that the second pressure sensor 520 does not include the first notch portion NTH1. Figure 7 Detailed description of the second pressure sensor 520 and the second protrusion 540 shown in FIG.

[0153] Figure 8 It specifically shows Figure 7 A plan view of area A; Fig. 9 It specifically shows Figure 7 A plan view of area B; Fig.10 is along Figure 8 A cross-sectional view taken along line II-II'.

[0154] Reference Figures 8 to 10 The second pressure sensor 520 includes a first substrate SUB1, a second substrate SUB2, a driving line TL, first to tenth sensing lines RL1 to RL8c, a driving pad TP, first to tenth sensing pads RP1 to RP8c, and first to tenth sensing units CE1 to CE8c.

[0155] For ease of explanation, Figure 84 and 5 , respectively, show a fourth pressure sensing unit CE4, a fifth pressure sensing unit CE5, and a pad area PAD. Fig. 9 An eighth pressure sensing unit CE8a and a ninth pressure sensing unit CE8b are shown. In addition, for the convenience of explanation, Figure 8 and Fig. 9 Illustration of the second substrate SUB2 is omitted.

[0156] The first substrate SUB1 and the second substrate SUB2 are disposed to face each other. Each of the first substrate SUB1 and the second substrate SUB2 may include polyethylene, polyimide, polycarbonate, polysulfone, polyacrylate, polystyrene, polyvinyl chloride, polyvinyl alcohol, polynorbornene, or polyester. In an exemplary embodiment, each of the first substrate SUB1 and the second substrate SUB2 may be formed of a polyethylene terephthalate (PET) film or a polyimide film.

[0157] A plurality of pressure sensing units CE1 to CE8c are disposed between the first substrate SUB1 and the second substrate SUB2. A driving line TL, a plurality of sensing lines RL1 to RL8c, a driving pad TP, and a plurality of sensing pads RP1 to RP8c are disposed on the first substrate SUB1 facing the second substrate SUB2.

[0158] Each of the plurality of pressure sensing units CE1 to CE8c may be connected to at least one driving line and at least one sensing line. For example, the plurality of pressure sensing units CE1 to CE8c may be connected to one driving line TL in common, whereas the plurality of pressure sensing units CE1 to CE8c may be connected to the plurality of sensing lines RL1 to RL8 one by one. Figure 8 As shown in FIG. 9 , the fourth pressure sensing unit CE4 may be connected to the driving line TL and the fourth sensing line RL4, the fifth pressure sensing unit CE5 may be connected to the driving line TL and the fifth sensing line RL5, the eighth pressure sensing unit CE8a may be connected to the driving line TL and the eighth sensing line RL8a, and the ninth pressure sensing unit CE8b may be connected to the driving line TL and the ninth sensing line RL8b. However, the inventive concept is not limited thereto, and the eighth pressure sensing unit CE8a and the ninth pressure sensing unit CE8b may be connected to the same eighth sensing line RL8a.

[0159] The driving line TL may be connected to the driving pad TP, and the plurality of sensing lines RL1 to RL8c may be connected one-to-one to the plurality of sensing pads RP1 to RP8c. The first sensing line RL1 may be connected to the first sensing pad RP1, the second sensing line RL2 may be connected to the second sensing pad RP2, the third sensing line RL3 may be connected to the third sensing pad RP3, the fourth sensing line RL4 may be connected to the fourth sensing pad RP4, and the fifth sensing line RL5 may be connected to the fifth sensing pad RP5. The sixth sensing line RL6 may be connected to the sixth sensing pad RP6, the seventh sensing line RL7 may be connected to the seventh sensing pad RP7, the eighth sensing line RL8a may be connected to the eighth sensing pad RP8a, the ninth sensing line RL8b may be connected to the ninth sensing pad RP8b, and the tenth sensing line RL8c may be connected to the tenth sensing pad RP8c.

[0160] The pad area PAD may protrude from one side of the first substrate SUB1. One side of the first substrate SUB1 may be a long side of the second pressure sensor 520. Figure 8 , the pad area PAD is shown to protrude from the center of the long side of the first substrate SUB1, but the inventive concept is not limited thereto. That is, the pad area PAD may protrude from one end or the other end of the long side of the first substrate SUB1.

[0161] The driving pad TP and the plurality of sensing pads RP1 to RP8c may be disposed in the pad area PAD. The driving pad TP and the plurality of sensing pads RP1 to RP8c may be connected one-to-one to the driving lead TL_F and the plurality of sensing leads RL1_F to RL8c_F of the pressure sensing circuit board 550 through an anisotropic conductive film. The driving pad TP may be connected to the driving lead TL_F, the first sensing pad RP1 may be connected to the first sensing lead RL1_F, the second sensing pad RP2 may be connected to the second sensing lead RL2_F, the third sensing pad RP3 may be connected to the third sensing lead RL3_F, the fourth sensing pad RP4 may be connected to the fourth sensing lead RL4_F, and the fifth sensing pad RP5 may be connected to the fifth sensing lead RL5_F. In addition, the sixth sensing pad RP6 can be connected to the sixth sensing lead RL6_F, the seventh sensing pad RP7 can be connected to the seventh sensing lead RL7_F, the eighth sensing pad RP8a can be connected to the eighth sensing lead RL8a_F, the ninth sensing pad RP8b can be connected to the ninth sensing lead RL8b_F, and the tenth sensing pad RP8c can be connected to the tenth sensing lead RL8c_F.

[0162] Because the pressure sensing circuit board 550 is connected to the Figure 3, so the pressure sensing circuit board 550 can be electrically connected to the pressure sensing unit 330 mounted on the display circuit board 310. The pressure sensing unit 330 applies a driving voltage to the driving line TL through the driving lead TL_F of the pressure sensing circuit board 550 and the driving pad TP of the second pressure sensor 520, and senses the current value or voltage value from the plurality of sensing lines RL1 to RL8c through the plurality of sensing leads RL1_F to RL8c_F connected to the plurality of sensing pads RP1 to RP8c of the second pressure sensor 520, thereby sensing the pressure applied to the plurality of pressure sensing units CE1 to CE8c.

[0163] The second pressure sensor 520 may further include a bonding layer disposed between the first substrate SUB1 and the second substrate SUB2 to bond the first substrate SUB1 and the second substrate SUB2 to each other. The bonding layer may be a pressure-sensitive adhesive layer or an adhesive layer. The bonding layer may be disposed along the periphery of the first substrate SUB1 and the second substrate SUB2. In an exemplary embodiment, the bonding layer may be used to encapsulate the interior of the second pressure sensor 520 by completely surrounding the edges of the first substrate SUB1 and the second substrate SUB2. In addition, the bonding layer may be used as a spacer that maintains a constant distance between the first substrate SUB1 and the second substrate SUB2.

[0164] like Figure 8 and Fig. 9 As shown in , each of the plurality of pressure sensing cells CE1 to CE8 c includes a driving connection electrode TCE, a sensing connection electrode RCE, a driving electrode TE1 , a sensing electrode RE1 , and a pressure sensing layer PSL.

[0165] The driving connection electrode TCE, the sensing connection electrode RCE, the driving electrode TE1, and the sensing electrode RE1 may be disposed on the first substrate SUB1 facing the second substrate SUB2.

[0166] The driving connection electrode TCE is connected to the driving line TL and the driving electrode TE1. In the plurality of pressure sensing units CE1 to CE8c, the driving connection electrode TCE may have different shapes. Specifically, as shown in FIG. Figure 8 As shown in , in each of the fourth pressure sensing unit CE4 and the fifth pressure sensing unit CE5, the driving connection electrode TCE may be formed by a partially opened circular edge corresponding to the shape of the fourth pressure sensing unit CE4 and the fifth pressure sensing unit CE5, and the driving connection electrode TCE is connected to the driving line TL at one end. A plurality of driving electrodes TE1 may branch from the driving connection electrode TCE in a direction opposite to the second direction (Y-axis direction). Fig. 9As shown in FIG. 1 , in each of the eighth pressure sensing unit CE8a and the ninth pressure sensing unit CE8b, the driving connection electrode TCE may be formed by a partially opened rectangular edge corresponding to the shape of the eighth pressure sensing unit CE8a and the ninth pressure sensing unit CE8b, and the driving connection electrode TCE is connected to the driving line TL at one end. The plurality of driving electrodes TE1 may branch from the driving connection electrode TCE in a direction opposite to the second direction (Y-axis direction).

[0167] The sensing connection electrode RCE is connected to any one of the plurality of sensing lines RL1 to RL8c and the sensing electrode RE1. In the plurality of pressure sensing units CE1 to CE8c, the sensing connection electrode RCE may have different shapes. Specifically, as shown in FIG. Figure 8 As shown in FIG. 1 , in each of the fourth pressure sensing unit CE4 and the fifth pressure sensing unit CE5 , the sensing connection electrode RCE may have a curved shape disposed inside the circular edge of the driving connection electrode TCE. A plurality of sensing electrodes RE1 may branch from the sensing connection electrode RCE in the second direction (Y-axis direction). Fig. 9 As shown in, in each of the eighth pressure sensing unit CE8a and the ninth pressure sensing unit CE8b, the sensing connection electrode RCE can be set to extend to the inside of the rectangular edge of the opening side of the driving connection electrode TCE, and multiple sensing electrodes RE1 can be branched from the sensing connection electrode RCE in the second direction (Y-axis direction).

[0168] The plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 may be disposed on the same layer. The plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 may be made of the same material. For example, the plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 may include a conductive material such as silver (Ag) or copper (Cu). The plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 may be formed on the first substrate SUB1 by a screen printing method.

[0169] The plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 are disposed adjacent to each other but are not connected to each other. The plurality of driving electrodes TE1 and the plurality of sensing electrodes RE11 may be arranged parallel to each other. The plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 may be arranged alternately in the first direction (X-axis direction).

[0170] like Fig.10 As shown in FIG. 1 , the pressure sensing layer PSL is disposed on one surface of the second substrate SUB2 facing the first substrate SUB1. The pressure sensing layer PSL may be disposed to overlap the driving electrode TE1 and the sensing electrode RE1.

[0171] The pressure sensing layer PSL may include a pressure sensitive material and a polymer resin in which the pressure sensitive material is provided. The pressure sensitive material may include fine metal particles (or metal nanoparticles) of nickel, aluminum, titanium, tin, or copper. For example, the pressure sensing layer PSL may be a quantum tunneling composite (QTC).

[0172] When no pressure is applied to the second substrate SUB2 in the height direction (Z-axis direction) of the second pressure sensor 520, as shown in FIG. Fig.10 As shown in FIG, there are gaps between the pressure sensing layer PSL and the driving electrode TE1 and between the pressure sensing layer PSL and the sensing electrode RE1. That is, when no pressure is applied to the second substrate SUB2, the pressure sensing layer PSL is spaced apart from the driving electrode TE1 and the sensing electrode RE1.

[0173] When pressure is applied to the second substrate SUB2 in the height direction (Z-axis direction) of the second pressure sensor 520, the pressure sensing layer PSL may contact the plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1. In this case, at least one of the plurality of driving electrodes TE1 and at least one of the plurality of sensing electrodes RE1 may be physically connected through the pressure sensing layer PSL, and the pressure sensing layer PSL may function as a resistor.

[0174] Therefore, according to Figures 8 to 10 In the exemplary embodiment shown in , since the contact area of ​​the pressure sensing layer PSL with the plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 changes according to the pressure applied to the pressure sensing unit 330 of the second pressure sensor 520, the resistance value of the sensing line electrically connected to the plurality of sensing electrodes RE1 can be changed. For example, the higher the pressure applied to the pressure sensing unit 330 of the second pressure sensor 520, the lower the resistance value of the sensing line. The pressure sensing unit 330 senses a change in the current value or voltage value from the plurality of sensing lines RL1 to RL8c, thereby sensing the pressure pressed by the user's hand.

[0175] At the same time, since the first pressure sensor 510 is Figures 8 to 10 The second pressure sensor 520 shown in FIG. 5 is substantially the same, so a detailed description of the first pressure sensor 510 will be omitted.

[0176] Fig.11 and Fig.12 is an exemplary view illustrating a display device using a first pressure sensor and a second pressure sensor as physical buttons according to an exemplary embodiment.

[0177] Fig.11 and Fig.121 to 10 pressure sensing cells CE1 to CE8c of the first pressure sensor 510 and the second pressure sensor 520 disposed in the second region DR2 of the display device 10 are shown. It is assumed that the eighth to tenth pressure sensing cells CE8a, CE8b, and CE8c are the eighth pressure sensing cells CE8 connected to one sensing line and performing one function.

[0178] Fig.11 2 shows that in a state where the user holds the display device 10 with his hand, the user presses the fifth pressure sensing unit CE5 of the left curved portion corresponding to the second region DR2 of the display device 10 with his index finger. Fig.12 10. It is shown that in a state where the user holds the display device 10 with his hand, the user presses the eighth pressure sensing unit CE8 of the left curved portion corresponding to the second region DR2 of the display device 10 with the middle finger, the ring finger, and the little finger, and Fig.12 It is shown that in this state, the user presses the eighth pressure sensing unit CE8 of the right curved portion corresponding to the second region DR2 of the display device 10 with the palm.

[0179] Reference Fig.11 and Fig.12 , the first pressure sensor 510 and the second pressure sensor 520 may be used to replace the physical buttons of the display device 10. Specifically, when pressure is applied to the first to eighth pressure sensing cells CE1 to CE8 of the first pressure sensor 510 formed on the right curved portion of the display device 10 and the first to eighth pressure sensing cells CE1 to CE8 of the second pressure sensor 520 formed on the left curved portion of the display device 10, a predetermined application or operation may be executed.

[0180] For example, among the first pressure sensing unit CE1 to the eighth pressure sensing unit CE8 of the first pressure sensor 510 formed on the right curved portion of the display device 10, the first pressure sensing unit CE1 and the second pressure sensing unit CE2 can be used as a volume-up button VB+ pressed by the user to increase the volume of the display device 10, the third pressure sensing unit CE3 and the fourth pressure sensing unit CE4 can be used as a volume-down button VB- pressed by the user to decrease the volume of the display device 10, and the fifth pressure sensing unit CE5, the sixth pressure sensing unit CE6 and the seventh pressure sensing unit CE7 can be used as a power button PB pressed by the user to turn off the power.

[0181] When pressure is sensed from the first pressure sensing unit CE1 and the second pressure sensing unit CE2 formed on the right curved portion of the display device 10, the main processor 710 may control the volume of the speaker of the display device 10 to increase. In addition, when pressure is sensed from the third pressure sensing unit CE3 and the fourth pressure sensing unit CE4 formed on the right curved portion of the display device 10, the main processor 710 may control the volume of the speaker of the display device 10 to decrease. In addition, when pressure is sensed from the fifth pressure sensing unit CE5, the sixth pressure sensing unit CE6, and the seventh pressure sensing unit CE7 formed on the right curved portion of the display device 10, the main processor 710 may turn off the screen of the display device 10, or may output a screen that the display device 10 may be selected to be turned off.

[0182] In addition, among the first to eighth pressure sensing units CE1 to CE8 formed on the left curved portion of the display device 10, the first pressure sensing unit CE1 and the second pressure sensing unit CE2 can be used as a call button CB pressed by the user to execute a call application, the third pressure sensing unit CE3 and the fourth pressure sensing unit CE4 can be used as a camera button CMB pressed by the user to execute a camera application, and the fifth pressure sensing unit CE5, the sixth pressure sensing unit CE6 and the seventh pressure sensing unit CE7 can be used as an Internet button IB pressed by the user to execute an Internet application.

[0183] In this case, when pressure is sensed from the first pressure sensing unit CE1 and the second pressure sensing unit CE2 formed on the right curved portion of the display device 10, the main processor 710 may control the call application to be executed. In addition, when pressure is sensed from the third pressure sensing unit CE3 and the fourth pressure sensing unit CE4 formed on the right curved portion of the display device 10, the main processor 710 may control the camera application to be executed. In addition, when pressure is sensed from the fifth pressure sensing unit CE5, the sixth pressure sensing unit CE6, and the seventh pressure sensing unit CE7 formed on the left curved portion of the display device 10, the main processor 710 may control the Internet application to be executed.

[0184] because Fig.11 and Fig.12The exemplary embodiment shown in is only one example, but the inventive concept is not limited thereto. That is, when pressure is applied to the first pressure sensing cells CE1 to the seventh pressure sensing cells CE7 of the first pressure sensor 510 located on the right curved portion of the display device 10 and the first pressure sensing cells CE1 to the seventh pressure sensing cells CE7 of the second pressure sensor 520 located on the left curved portion of the display device 10, the display device 10 may include the aforementioned functions or may perform various functions in addition to these functions. In addition, the display device 10 may be programmed so that operations different from each other are performed on each of the first pressure sensing cells CE1 to the seventh pressure sensing cells CE7 of the first pressure sensor 510 located on the right curved portion of the display device 10 and the first pressure sensing cells CE1 to the seventh pressure sensing cells CE7 of the second pressure sensor 520 located on the left curved portion of the display device 10.

[0185] In addition, each of the eighth pressure sensing units CE8 formed on the left and right curved portions of the display device 10, respectively, may be used as a squeeze sensing button SB. The squeeze pressure applied to the eighth pressure sensing unit CE8 may be greater than the pressure applied to the first to seventh pressure sensing units CE1 to CE7. When the squeeze pressure is sensed from the eighth pressure sensing unit CE8 formed on each of the left and right curved portions, the main processor 710 may control a predetermined application or operation to be executed. For example, when the squeeze pressure is sensed from the eighth pressure sensing unit CE8 formed on each of the left and right curved portions, the main processor 710 may control the display device 10 to be turned on in a sleep mode.

[0186] according to Fig.11 and Fig.12 In the exemplary embodiment shown in , the first pressure sensor 510 and the second pressure sensor 520 are arranged in the second region DR2 corresponding to the curved portion of the display device 10, so that the first pressure sensor 510 and the second pressure sensor 520 can be used as physical buttons such as a volume control button, a power button, a call button, a camera button, an Internet button, and a squeeze sensing button.

[0187] Fig.13 is shown along Figure 3 and Figure 4 A cross-sectional view of the example taken along line II'. Fig.14 is an exploded perspective view showing a first accommodating portion of the waterproof member and a portion of the first pressure sensor corresponding to the first accommodating portion of the waterproof member. Fig.15 is along Fig.14 A cross-sectional view taken along line III-III'.

[0188] Reference Figures 13 to 15, the cover window 100, the touch sensing unit 200, the display panel 300, the panel lower member 390, and the middle frame 600 may be formed to be flat in the first region DR1, and may be formed to be curved in the second region DR2.

[0189] The first pressure sensor 510 may be disposed in the second region DR2 corresponding to the curved portion of the display device 10. The first protrusion 530 may be disposed on the first pressure sensor 510. Each of the first protrusions 530 may be attached to the lower surface of the panel lower member 390 by the fourth adhesive member 940, and may be attached to the upper surface of the first pressure sensor 510 by the sixth adhesive member 960. In addition, the first pressure sensor 510 may be attached to the upper surface of the middle frame 600 by the fifth adhesive member 950. The fourth adhesive member 940, the fifth adhesive member 950, and the sixth adhesive member 960 may be a pressure sensitive adhesive (PSA). Any one of the fourth adhesive member 940 and the fifth adhesive member 950 may be omitted.

[0190] The waterproof member 400 may be disposed outside the first pressure sensor 510. That is, the waterproof member 400 may be disposed on one side surface of the first pressure sensor 510, and the one side surface of the first pressure sensor 510 may be disposed closer to one side edge of the display panel 300 than the other side surfaces of the first pressure sensor 510. For example, when the first pressure sensor 510 is disposed at the right edge of the display panel 300, the waterproof member 400 may be disposed on the right surface of the first pressure sensor 510, and the pressure sensing unit CE of the first pressure sensor 510 may be inserted and disposed in the receiving portion GR of the waterproof member 400.

[0191] The following will refer to Fig.14 and Fig.15 The layout of the first receiving portion GR1 of the waterproof member 400 and the pressure sensing unit CE of the first pressure sensor 510 is described. The first receiving portion GR1 may have a circular shape, and the pressure sensing unit CE of the first pressure sensor 510 corresponding to the first receiving portion GR1 may have a circular shape. Specifically, the first receiving portion GR1 may have a circular shape with a portion thereof open, and the pressure sensing unit CE of the first pressure sensor 510 may have a circular shape protruding from the connection portion CN. A first protrusion 530 having a size smaller than that of the pressure sensing unit CE may be provided on the pressure sensing unit CE, and the first protrusion 530 may be attached and fixed to the pressure sensing unit CE by the sixth adhesive member 960.

[0192] The circular shape of the pressure sensing unit CE may have a size smaller than that of the first receiving portion GR1, and thus the pressure sensing unit CE may be inserted and fixed into the first receiving portion GR1. Similarly, since the pressure sensing unit CE of the first pressure sensor 510 is inserted into the first receiving portion GR1 of the waterproof member 400, the space for disposing the first pressure sensor 510 may be significantly reduced.

[0193] The waterproof member 400 may be attached to the lower surface of the panel lower member 390 and the upper surface of the middle frame 600. To this end, the waterproof member 400 may include a base film 411, a first adhesive film 412 disposed on one surface of the base film 411, and a second adhesive film 413 disposed on the other surface of the base film 411. The base film 411 may be a polyethylene terephthalate (PET) film, a polyethylene terephthalate (PET) film and a cushion layer, or polyethylene foam (PE-foam). Each of the first adhesive film 412 and the second adhesive film 413 may be a pressure-sensitive adhesive layer. The first adhesive film 412 may be bonded to the lower surface of the panel lower member 390, and the second adhesive film 413 may be bonded to the upper surface of the middle frame 600.

[0194] The waterproof member 400 is pressed and attached to the lower surface of the panel lower member 390 and the upper surface of the middle frame 600. When the height of the waterproof member 400 is less than the sum of the height of the first pressure sensor 510 and the height of the first protrusion 530, the first pressure sensor 510 may be damaged by the force for attaching the waterproof member 400. Therefore, the height of the waterproof member 400 may be greater than the sum of the height of the first pressure sensor 510 and the height of the first protrusion 530. However, if the height of the waterproof member 400 is much greater than the sum of the height of the first pressure sensor 510 and the height of the first protrusion 530, the pressure is not sensed by the first pressure sensor 510. Therefore, the height of the waterproof member 400 may be predetermined in consideration of whether the first pressure sensor 510 is damaged by the force for attaching the waterproof member 400 and whether the pressure is sensed by the first pressure sensor 510 after attaching the waterproof member 400.

[0195] Furthermore, in order for the first protrusion 530 to press the plurality of pressure sensing cells CE1 to CE8 c of the first pressure sensor 510 , the height of the first protrusion 530 may be higher than that of the first pressure sensor 510 , but the inventive concept is not limited thereto.

[0196] Fig.16 is an exploded perspective view showing a second accommodating portion of the waterproof member and a portion of the second pressure sensor corresponding to the second accommodating portion of the waterproof member, Fig.17 is along Fig.16 A cross-sectional view taken along line IV-IV'.

[0197] Reference Fig.16 and Fig.17 , the second receiving portion GR2 of the waterproof member 400 may have a rectangular shape, and the pressure sensing unit CE of the first pressure sensor 510 corresponding to the second receiving portion GR2 may have a rectangular shape. Specifically, the second receiving portion GR2 may have a rectangular shape with a portion thereof open, and the pressure sensing unit CE of the first pressure sensor 510 may have a rectangular shape protruding from the connection portion CN. The first protrusion 530 having a size smaller than that of the pressure sensing unit CE may be provided on the pressure sensing unit CE, and the first protrusion 530 may be attached and fixed to the pressure sensing unit CE by the sixth adhesive member 960.

[0198] The rectangular shape of the pressure sensing unit CE may have a size smaller than that of the second receiving portion GR2, so the pressure sensing unit CE may be inserted and fixed into the second receiving portion GR2. Similarly, since the pressure sensing unit CE of the first pressure sensor 510 is inserted into the second receiving portion GR2 of the waterproof member 400, the space for disposing the first pressure sensor 510 may be significantly reduced. In addition, by changing the shape of the pressure sensing unit CE of each region, the space limitation for arranging the pressure sensor may be reduced.

[0199] Fig.18 is a plan view illustrating a waterproof member and first and second pressure sensors according to another exemplary embodiment.

[0200] Reference Fig.18 In an exemplary embodiment, the waterproof member 400 may include a plurality of receiving portions GR, and the plurality of receiving portions GR may have the same shape. For example, a plurality of circular receiving portions GR may be provided in the first long side 400c and the second long side 400d of the waterproof member 400. Specifically, each of the plurality of receiving portions GR may have a circular shape with a portion thereof being open.

[0201] Each of the first pressure sensor 510_1 and the second pressure sensor 520_1 may include a plurality of circular pressure sensing cells CE protruding from the connection portion CN corresponding to the plurality of accommodation portions GR of the waterproof member 400. For example, the first pressure sensor 510_1 may include the connection portion CN extending in the second direction (Y-axis direction) and the plurality of circular pressure sensing cells CE protruding from the connection portion CN in the first direction (X-axis direction), and the second pressure sensor 520_1 may include the connection portion CN extending in the second direction (Y-axis direction) and the plurality of circular pressure sensing cells CE protruding from the connection portion CN in a direction opposite to the first direction (X-axis direction). Since the plurality of circular pressure sensing cells CE of the first pressure sensor 510_1 and the second pressure sensor 520_1 are inserted and accommodated in the plurality of accommodation portions GR of the waterproof member 400, the space for disposing the first pressure sensor 510_1 and the second pressure sensor 520_1 may be significantly reduced.

[0202] Fig.19 is a plan view illustrating a waterproof member and first and second pressure sensors according to another exemplary embodiment.

[0203] Reference Fig.19 In an exemplary embodiment, the waterproof member 400 may include a plurality of receiving portions GR, and the plurality of receiving portions GR may have the same shape. For example, a plurality of rectangular receiving portions GR may be provided in the first long side 400c and the second long side 400d of the waterproof member 400. Specifically, each of the plurality of receiving portions GR may have a rectangular shape with one side thereof open.

[0204] Each of the first pressure sensor 510_2 and the second pressure sensor 520_2 may include a plurality of rectangular pressure sensing cells CE protruding from the connection portion CN corresponding to the plurality of accommodation portions GR of the waterproof member 400. For example, the first pressure sensor 510_2 may include the connection portion CN extending in the second direction (Y-axis direction) and the plurality of rectangular pressure sensing cells CE protruding from the connection portion CN in the first direction (X-axis direction), and the second pressure sensor 520_2 may include the connection portion CN extending in the second direction (Y-axis direction) and the plurality of rectangular pressure sensing cells CE protruding from the connection portion CN in a direction opposite to the first direction (X-axis direction). Since the plurality of rectangular pressure sensing cells CE of the first pressure sensor 510_2 and the second pressure sensor 520_2 are inserted and accommodated in the plurality of accommodation portions GR of the waterproof member 400, the space for disposing the first pressure sensor 510_2 and the second pressure sensor 520_2 may be significantly reduced.

[0205] Fig. 20is a plan view illustrating a waterproof member and first and second pressure sensors according to another exemplary embodiment.

[0206] Reference Fig. 20 In an exemplary embodiment, the waterproof member 400 may include a plurality of first accommodating portions GR1 and a plurality of second accommodating portions GR2, and the plurality of first accommodating portions GR1 and the plurality of second accommodating portions GR2 may have different shapes. For example, a plurality of rectangular first accommodating portions GR1 with one side open may be disposed in the first long side 400c of the waterproof member 400, and a plurality of circular second accommodating portions GR2 with a portion open may be disposed in the second long side 400d of the waterproof member 400.

[0207] The first pressure sensor 510_2 may include a plurality of rectangular pressure sensing cells CE protruding from the connection portion CN corresponding to the plurality of first receiving portions GR1 of the waterproof member 400, and the second pressure sensor 520_1 may include a plurality of circular pressure sensing cells CE protruding from the connection portion CN corresponding to the plurality of second receiving portions GR2 of the waterproof member 400. Specifically, the first pressure sensor 510_2 may include the connection portion CN extending in the second direction (Y-axis direction) and a plurality of rectangular pressure sensing cells CE protruding from the connection portion CN in the first direction (X-axis direction), and the second pressure sensor 520_1 may include the connection portion CN extending in the second direction (Y-axis direction) and a plurality of circular pressure sensing cells CE protruding from the connection portion CN in a direction opposite to the first direction (X-axis direction). Because the plurality of rectangular pressure sensing cells CE of the first pressure sensor 510_2 are inserted into and accommodated in the plurality of first accommodating portions GR1 of the waterproof member 400, and the plurality of circular pressure sensing cells CE of the second pressure sensor 520_1 are inserted into and accommodated in the plurality of second accommodating portions GR2 of the waterproof member 400, the space for setting the first pressure sensor 510_2 and the second pressure sensor 520_1 can be significantly reduced.

[0208] Fig.21 is a plan view illustrating a waterproof member and first and second pressure sensors according to another exemplary embodiment. Fig.21 An exemplary embodiment of Fig. 20 The difference of the aforementioned exemplary embodiment is that each of the first pressure sensor and the second pressure sensor is configured to be divided into two parts. Fig. 20 Description of the exemplary embodiments of the present invention is repeated, and differences will be mainly described.

[0209] Reference Fig.21In an exemplary embodiment, the waterproof member 400 may include a plurality of first accommodating portions GR1 and a plurality of second accommodating portions GR2 having shapes different from each other. The first pressure sensor 510 may be configured to be divided into a first portion 510a and a second portion 510b, and the second pressure sensor 520 may be configured to be divided into a first portion 520a and a second portion 520b. The plurality of pressure sensing units CE of the first portion 510a and the second portion 510b of the first pressure sensor 510 may be respectively inserted and accommodated in the plurality of first accommodating portions GR1 of the waterproof member 400, and the plurality of pressure sensing units CE of the first portion 520a and the second portion 520b of the second pressure sensor 520 may be respectively inserted and accommodated in the plurality of second accommodating portions GR2 of the waterproof member 400. Therefore, the space for arranging the first pressure sensor 510 and the second pressure sensor 520 may be significantly reduced, and the degree of freedom in designing the layout of the pressure sensor may be increased to a degree beyond the space limitation.

[0210] Fig. 22 is a plan view illustrating a waterproof member and first and second pressure sensors according to another exemplary embodiment. Fig. 22 An exemplary embodiment of Fig.21 The difference of the aforementioned exemplary embodiments is that Fig. 22 The shape of the first part of the first pressure sensor is Fig.21 The shape of the first part of the first pressure sensor is different. Fig.21 Description of the exemplary embodiments of the present invention is repeated, and differences will be mainly described.

[0211] Reference Fig. 22 In an exemplary embodiment, the waterproof member 400 may include a plurality of first accommodating portions GR1, a plurality of second accommodating portions GR2, and a plurality of third accommodating portions GR3 having shapes different from each other. Each of the first accommodating portions GR1 may have a triangular shape with one side open, each of the second accommodating portions GR2 may have a rectangular shape with one side open, and each of the third accommodating portions GR3 may have a circular shape with a portion open.

[0212] The first pressure sensor 510 may be configured to be divided into a first part 510a_1 and a second part 510b, and the second pressure sensor 520 may be configured to be divided into a first part 520a_1 and a second part 520b. The first part 510a_1 of the first pressure sensor 510 may have a plurality of triangular pressure sensing cells CE, which may be respectively inserted and accommodated in a plurality of first accommodation parts GR1 of the waterproof member 400. The second part 510b of the first pressure sensor 510 may have a plurality of rectangular pressure sensing cells CE, which may be respectively inserted and accommodated in a plurality of second accommodation parts GR2 of the waterproof member 400. The first part 520a and the second part 520b of the second pressure sensor 520 may have a plurality of circular pressure sensing cells CE, which may be respectively inserted and accommodated in a plurality of third accommodation parts GR3 of the waterproof member 400. Therefore, the space for arranging the first pressure sensor 510 and the second pressure sensor 520 may be significantly reduced, and the degree of freedom in designing the layout of the pressure sensor may be increased to a degree beyond the space limitation.

[0213] Fig.23 is an exploded perspective view of a display device according to another exemplary embodiment. Fig.23 Example embodiment 23 with Figure 2 The difference of the above-mentioned embodiment is that the pressure sensor is arranged on the lower surface of the cover window. Figure 2 Description of the exemplary embodiments of the present invention is repeated, and differences will be mainly described.

[0214] Reference Fig.23 According to another exemplary embodiment, a display device 10_1 includes a cover window 100, a pressure sensor 500_1, a touch sensing unit 200, a touch circuit board 210, a touch driving unit 220, a display panel 300, a display circuit board 310, a display driving unit 320, a pressure sensing unit 330, a pressure sensing circuit board 550, a middle frame 600, a main circuit board 700 and a lower cover 900.

[0215] In an exemplary embodiment, the cover window 100 may include a light-transmitting area DA100 corresponding to the display panel 300 and a light-blocking area NDA100 corresponding to an area other than the display panel 300. The light-blocking area NDA100 may include a first light-blocking portion NDA100a and a second light-blocking portion NDA100b facing each other in the second direction (Y-axis direction) and extending in the first direction (X-axis direction), and a third light-blocking portion NDA100c and a fourth light-blocking portion NDA100d facing each other in the first direction (X-axis direction) and extending in the second direction (Y-axis direction). The first light-blocking portion NDA100a, the second light-blocking portion NDA100b, the third light-blocking portion NDA100c, and the fourth light-blocking portion NDA100d are connected to each other to form an edge shape surrounding the outer side of the light-transmitting area DA100, but the inventive concept is not limited thereto.

[0216] In an exemplary embodiment, the light blocking area NDA100 may be provided with a plurality of holes HH for exposing a front camera, a front speaker, an infrared sensor, an iris recognition sensor, an ultrasonic sensor, an illumination sensor, etc., but the inventive concept is not limited thereto.

[0217] The cover window 100 may be made of glass, sapphire and / or plastic. The cover window 100 may be rigid or flexible.

[0218] The touch sensing unit 200 and the display panel 300 disposed under the cover window 100 may have an area smaller than that of the cover window 100. For example, the touch sensing unit 200 and the display panel 300 disposed under the cover window 100 may overlap the light transmitting area DA100 of the cover window 100, and may not overlap the light blocking area NDA100.

[0219] In an exemplary embodiment, the pressure sensor 500_1 may be disposed between the light blocking area NDA100 of the cover window 100 and the intermediate frame 600. For example, the pressure sensor 500_1 may be disposed between the first light blocking portion NDA100a of the cover window 100 and the intermediate frame 600. However, the inventive concept is not limited thereto. The pressure sensor 500_1 may be disposed between the intermediate frame 600 and any one of the first to fourth light blocking portions NDA100a, NDA100b, NDA100c, and NDA100d of the cover window 100, or may be disposed between the intermediate frame 600 and two or more of the first to fourth light blocking portions NDA100a, NDA100b, NDA100c, and NDA100d. One surface of the pressure sensor 500_1 may be attached to one surface of the cover window 100, and the other surface of the pressure sensor 500_1 may be supported by the intermediate frame 600. However, the inventive concept is not limited thereto, and another surface of the pressure sensor 500_1 may be supported by the lower cover 900. Similarly, the light blocking area NDA100 of the cover window 100 is provided with the pressure sensor 500_1 so that the non-display area from which an image is not outputted can be used as a physical button for executing a specific function.

[0220] Fig.24 is a bottom view showing an exemplary embodiment of a cover window and a pressure sensor; Fig.25 is along Fig.24 A cross-sectional view taken along line V-V'; Fig.26 is along Fig.24 A cross-sectional view taken along line VI-VI'; Fig. 27 is a plan view showing the upper surface of the pressure sensor.

[0221] In an exemplary embodiment, if Fig.26 As shown in , the touch sensing unit 200, the display panel 300 and the panel lower member 390 may be disposed on the rear surface of the light-transmitting area DA100 of the cover window 100, and the pressure sensor 500_1 may be disposed on the rear surface of the first light-blocking portion NDA100a. Fig.24 In an exemplary embodiment, the first light blocking portion NDA100a may include a plurality of holes HH for exposing a front camera, a front speaker, an infrared sensor, an iris recognition sensor, an ultrasonic sensor, an illumination sensor, etc. However, for ease of explanation, it is assumed that the plurality of holes HH include a first hole H1, a second hole H2, and a third hole H3.

[0222] The plurality of holes HH formed in the first light shielding portion NDA100a are arranged in a row in the first direction (X-axis direction). However, the inventive concept is not limited thereto. The plurality of holes HH formed in the first light shielding portion NDA100a may be arranged in a plurality of rows in the first direction (X-axis direction) or may be arranged irregularly.

[0223] The pressure sensor 500_1 may extend in the first direction (X-axis direction) to be disposed on the first light shielding portion NDA100a, and may be disposed to bypass a plurality of holes HH disposed in the first light shielding portion NDA100a. For example, the pressure sensor 500_1 may include a first opening portion DP1 for exposing the first hole H1 and the second hole H2 and a second opening portion DP2 for exposing the third hole H3. However, the present invention is not limited thereto, and the pressure sensor 500_1 may include three opening portions for respectively exposing the first hole H1, the second hole H2, and the third hole H3, or may include one opening portion for simultaneously exposing the first hole H1, the second hole H2, and the third hole H3. Due to the first opening portion DP1 and the second opening portion DP2, the pressure sensor 500_1 may be provided with the first pressure sensing unit CE1, the second pressure sensing unit CE2, and the third pressure sensing unit CE3 having a protruding shape.

[0224] Although Fig.24 It is shown in FIG. 4 that the first opening portion DP1, the second opening portion DP2, the first pressure sensing cell CE1, the second pressure sensing cell CE2, and the third pressure sensing cell CE3 have a rectangular shape, but this is an example. Fig.29 and Fig.30 is a bottom view showing another exemplary embodiment of a cover window and a pressure sensor. Fig.29 and Fig.30 The first and second opening portions DP1 and DP2 may have various shapes capable of exposing the plurality of holes HH, and the first, second, and third pressure sensing units CE1, CE2, and CE3 may also have various shapes, such as a triangular shape and a semicircular shape.

[0225] Refer to Fig.25 and Fig. 27In an exemplary embodiment, a protrusion BP may be provided on the pressure sensor 500_1. The protrusion BP may be provided between the pressure sensor 500_1 and the rear surface of the cover window 100. The pressure sensor 500_1 may include a first pressure sensing unit CE1, a second pressure sensing unit CE2, and a third pressure sensing unit CE3. The first pressure sensing unit CE1 may be provided in a first direction (X-axis direction) of the first opening portion DP1, the second pressure sensing unit CE2 may be provided between the first opening portion DP1 and the second opening portion DP2, and the third pressure sensing unit CE3 may be provided in a direction opposite to the first direction (X-axis direction) of the second opening portion DP2. However, the inventive concept is not limited thereto. The protrusion BP may be provided on the first pressure sensing unit CE1, the second pressure sensing unit CE2, and the third pressure sensing unit CE3, respectively, according to their shapes and sizes. The size of each protrusion BP may be smaller than the size of each of the first pressure sensing unit CE1, the second pressure sensing unit CE2, and the third pressure sensing unit CE3. However, the inventive concept is not limited thereto.

[0226] Reference Fig.26 , the touch sensing unit 200 may be attached to the rear surface of the light-transmitting area DA100 of the cover window 100 by a first adhesive member 910, the display panel 300 may be attached to the rear surface of the touch sensing unit 200 by a second adhesive member 920, and the panel lower member 390 may be attached to the rear surface of the display panel 300 by a third adhesive member 930. The protrusion BP may be attached to the rear surface of the first light blocking portion NDA100a by a fourth adhesive member 940, the pressure sensor 500_1 may be attached to the rear surface of the protrusion BP by a sixth adhesive member 960, and although not shown, the rear surface of the pressure sensor 500_1 may be attached to the middle frame 600 by a fifth adhesive member 950. Similarly, the light blocking area NDA100 of the cover window 100 is provided with the pressure sensor 500_1, so that the non-display area from which an image is not outputted may be used as a physical button for executing a specific function.

[0227] Fig.28 is an exemplary view illustrating a display device using a pressure sensor as a physical button according to an exemplary embodiment.

[0228] Fig.281 shows that the first to third pressure sensing units CE1 to CE3 of the pressure sensor 500_1 are arranged on the first light blocking part NDA100a of the display device 10_1, and it is shown that the user presses the first pressure sensing unit CE1 of the display device 10_1 with the user's index finger. When pressure is sensed from the first to third pressure sensing units CE1 to CE3 of the pressure sensor 500_1 arranged on the first light blocking part NDA100a of the display device 10_1, the main processor 710 can control the display device 10_1 to perform a preset function. For example, the main processor 710 can be programmed so that different operations are performed on each of the first to third pressure sensing units CE1 to CE3 of the pressure sensor 500_1. When pressure is sensed from the first to third pressure sensing units CE1 to CE3, power on / off of a camera, an Internet application, a display device, etc. can be executed.

[0229] Fig.31 is a perspective view of a display device according to another exemplary embodiment. Fig.32 is an exploded perspective view of a display device according to another exemplary embodiment. Fig.31 and Fig.32 The display device 10_2 and Figure 1 and Figure 2 The difference between the display device 10 and the display device 10_2 is that the display device 10_2 has only a flat first area, the lower cover surrounds the side surface of the display device, and the pressure sensor is disposed on the side surface of the lower cover. Figure 1 and Figure 2 Description of the exemplary embodiments of the present invention is repeated, and differences will be mainly described.

[0230] Reference Fig.31 and Fig.32 According to another exemplary embodiment, a display device 10_2 includes a cover window 100, a touch sensing unit 200, a touch circuit board 210, a touch driving unit 220, a display panel 300, a display circuit board 310, a display driving unit 320, a pressure sensing unit 330, a pressure sensor 500_2, a pressure sensing circuit board 550_2, a middle frame 600, a main circuit board 700 and a lower cover 900.

[0231] In an exemplary embodiment, the cover window 100, the touch sensing unit 200, and the display panel 300 may be flat, and the lower cover 900 may include a flat bottom surface 903 and a side surface 901 bent from the bottom surface 903. The side surface 901 of the lower cover 900 may be coupled to the cover window 100 while covering the side surfaces of the cover window 100, the touch sensing unit 200, and the display panel 300. However, the inventive concept is not limited thereto, and the side surface 901 of the lower cover 900 may be provided to cover some of the side surfaces of the cover window 100, the touch sensing unit 200, and the display panel 300.

[0232] The side surface 901 of the lower cover 900 may include a first side surface 901a and a second side surface 901b facing each other in the second direction (Y-axis direction) and extending in the first direction (X-axis direction), and a third side surface 901c and a fourth side surface 901d facing each other in the first direction (X-axis direction) and extending in the second direction (Y-axis direction). The first side surface 901a, the second side surface 901b, the third side surface 901c, and the fourth side surface 901d are connected to each other to cover the side surface of the cover window 100, the side surface of the touch sensing unit 200, and the side surface of the display panel 300, so that the cover window 100, the touch sensing unit 200, and the display panel 300 can be stably accommodated in the lower cover 900.

[0233] In an exemplary embodiment, the pressure sensor 500_2 may include a first pressure sensor 510 and a second pressure sensor 520 , and the first pressure sensor 510 and the second pressure sensor 520 may be disposed on a side surface 901 of the lower cover 900 .

[0234] Fig.33 is a plan view schematically showing a lower cover and a pressure sensor provided on the lower cover.

[0235] Reference Fig.33 In an exemplary embodiment, the first pressure sensor 510 may be disposed on the third side surface 901c of the lower cover 900, and the second pressure sensor 520 may be disposed on the fourth side surface 901d of the lower cover 900. However, the inventive concept is not limited thereto.

[0236] Each of the first pressure sensor 510 and the second pressure sensor 520 may include a plurality of pressure sensing cells CE1 to CE7. For example, each of the first pressure sensor 510 and the second pressure sensor 520 may include first to seventh pressure sensing cells CE1 to CE7 spaced apart from each other in the second direction (Y-axis direction). Although it is shown in the exemplary embodiment that each of the first pressure sensor 510 and the second pressure sensor 520 includes seven pressure sensing cells CE1 to CE7, the number of the pressure sensing cells is not limited thereto.

[0237] A plurality of first protrusions 530 spaced apart from each other in the second direction (Y-axis direction) may be disposed between the first to seventh pressure sensing units CE1 to CE7 of the first pressure sensor 510 and the third side surface 901c of the lower cover 900. The plurality of first protrusions 530 may be attached and fixed to the third side surface 901c of the lower cover 900 by the fourth adhesive member 940. In addition, as Fig.35 As shown in FIG. , rear surfaces of the plurality of first protrusions 530 may be respectively attached to the first to seventh pressure sensing cells CE1 to CE7 of the first pressure sensor 510 by sixth adhesive members 960 .

[0238] A plurality of second protrusions 540 spaced apart from each other in the second direction (Y-axis direction) may be disposed between the first to seventh pressure sensing cells CE1 to CE7 of the second pressure sensor 520 and the fourth side surface 901d of the lower cover 900. The plurality of second protrusions 540 may be attached and fixed to the fourth side surface 901d of the lower cover 900 by the fourth adhesive member 940. Similar to the rear surfaces of the plurality of first protrusions 530, the rear surfaces of the plurality of second protrusions 540 may also be attached to the first to seventh pressure sensing cells CE1 to CE7 of the second pressure sensor 520, respectively, by the sixth adhesive member 960.

[0239] Fig.34 is along Fig.31 A cross-sectional view taken along line VII-VII', Fig.35 yes Fig.34 An enlarged cross-sectional view of a portion.

[0240] Reference Fig.34In an exemplary embodiment, the touch sensing unit 200 may be attached to the rear surface of the light transmission area DA100 of the cover window 100 by a first adhesive member 910, the display panel 300 may be attached to the rear surface of the touch sensing unit 200 by a second adhesive member 920, and the panel lower member 390 may be placed on the middle frame 600. The cover window 100, the touch sensing unit 200, the display panel 300, and the middle frame 600 may be accommodated in the lower cover 900. Such a configuration is only an example, and the inventive concept is not limited thereto. Some configurations may be omitted, or additional configurations may be provided.

[0241] The pressure sensors 510 and 520 may be disposed between the side surface 901 of the lower cover 900 and the side surfaces of the touch sensing unit 200, the display panel 300, and the middle frame 600. More specifically, the cover window 100 may include a light-transmitting area DA100 and a light-blocking area NDA100, the touch sensing unit 200 and the display panel 300 may be disposed to overlap the light-transmitting area DA100 of the cover window 100, and the pressure sensors 510 and 520 may be disposed below the light-blocking area NDA100 of the cover window 100.

[0242] Reference Fig.35 , the first pressure sensor 510 may be disposed so that the plurality of pressure sensing units CE1 to CE7 face the third side surface 901c of the lower cover 900, and the first protrusions 530 may be respectively disposed between the plurality of pressure sensing units CE1 to CE7 and the third side surface 901c of the lower cover 900. The first protrusions 530 may be attached and fixed to the third side surface 901c of the lower cover 900 by the fourth adhesive member 940, and the first protrusions 530 may be attached and fixed to the plurality of pressure sensing units CE1 to CE7 of the first pressure sensor 510 by the sixth adhesive member 960.

[0243] When pressure is applied to the first pressure sensor 510, the first pressure sensor 510 may sense the applied pressure because the side surface of the display panel 300 and the side surface of the middle frame 600 support the rear surface of the first pressure sensor 510. Although not shown, the rear surface of the first pressure sensor 510 may be attached and fixed to the side surface of the touch sensing unit 200, the side surface of the display panel 300, and the side surface of the middle frame 600 by the fifth adhesive member 950.

[0244] Fig.36 is a perspective view schematically illustrating a pressure sensor of a display device according to an exemplary embodiment. Fig.36 An exemplary embodiment of Fig.11 and Fig.12 The difference of the aforementioned exemplary embodiment is that the pressure sensing unit is formed on the side surface of the lower cover. Therefore, the Fig.11 and Fig.12 Description of the exemplary embodiments of the present invention is repeated, and differences will be mainly described.

[0245] Reference Fig.36 , the first pressure sensor 510 and the second pressure sensor 520 are provided on the side surface 901 of the lower cover 900 corresponding to the side surface portion of the display device 10_2, so that the plurality of pressure sensing units CE1 to CE7 of the side surface portion of the display device 10_2 can be used as physical buttons such as a volume control button, a power button, a call button, a camera button, an Internet button, and a squeeze sensing button. Therefore, the non-display area from which an image is not output can be used as a physical button for executing a specific function.

[0246] Fig.37 is a plan view schematically showing a lower cover and a pressure sensor provided on the lower cover according to another exemplary embodiment, Fig.38 is a perspective view schematically showing a pressure sensor of a display device according to another embodiment. Fig.37 and Fig.38 The display device and Figure 31 to Figure 36 The difference of the aforementioned exemplary embodiment is that the pressure sensor is arranged at the corner area of ​​the lower cover. Therefore, the Figure 31 to Figure 36 Description of the exemplary embodiments of the present invention is repeated, and differences will be mainly described.

[0247] Reference Fig.37 In an exemplary embodiment, the pressure sensors 511, 512, 513, and 514 may be arranged at corner areas CP1, CP2, CP3, and CP4 of the side surface 901 of the lower cover 900. The lower cover 900 may include a first corner area CP1, a second corner area CP2, a third corner area CP3, and a fourth corner area CP4.

[0248] The first corner area CP1 is defined as an area where the first side surface 901a and the third side surface 901c of the lower cover 900 are connected to each other, the second corner area CP2 is defined as an area where the third side surface 901c and the second side surface 901b of the lower cover 900 are connected to each other, the third corner area CP3 is defined as an area where the second side surface 901b and the fourth side surface 901d of the lower cover 900 are connected to each other, and the fourth corner area CP4 is defined as an area where the fourth side surface 901d of the lower cover 900 and the first side surface 901a are connected to each other.

[0249] Although Fig.37 An example is shown in which the lower cover 900 includes four corner regions, but the inventive concept is not limited thereto, and the number of corner regions may be variously changed according to the shape of the lower cover 900 .

[0250] In an exemplary embodiment, the pressure sensors 511, 512, 513, and 514 may be arranged at the first to fourth angular regions CP1, CP2, CP3, and CP4. For example, the first pressure sensor 511 may be arranged at the first angular region CP1, the second pressure sensor 512 may be arranged at the second angular region CP2, the third pressure sensor 513 may be arranged at the third angular region CP3, and the fourth pressure sensor 514 may be arranged at the fourth angular region CP4. However, the inventive concept is not limited thereto, and the pressure sensors 511, 512, 513, and 514 may also be arranged only at some of the first to fourth angular regions CP1, CP2, CP3, and CP4.

[0251] The first pressure sensor 511 can be disposed at the first corner area CP1 so that the plurality of pressure sensing units CE1 to CE5 face the first side surface 901a and the third side surface 901c of the lower cover 900, and the first protrusions 531 can be respectively disposed on the plurality of pressure sensing units CE1 to CE5, and the first protrusions 531 can be attached to the first corner area CP1 by the fourth adhesive member 940.

[0252] The second pressure sensor 512 can be arranged at the second corner area CP2 so that the plurality of pressure sensing units CE6 to CE10 face the third side surface 901c and the second side surface 901b of the lower cover 900, and the second protrusions 532 can be respectively arranged on the plurality of pressure sensing units CE6 to CE10, and the second protrusions 532 can be attached to the second corner area CP2 by the fourth adhesive member 940.

[0253] The third pressure sensor 513 can be arranged at the third corner area CP3 so that the plurality of pressure sensing units CE1 to CE5 face the second side surface 901b and the fourth side surface 901d of the lower cover 900, and the third protrusions 533 can be respectively arranged on the plurality of pressure sensing units CE1 to CE5, and the third protrusions 533 can be attached to the third corner area CP3 by the fourth adhesive member 940.

[0254] The fourth pressure sensor 514 can be set at the fourth corner area CP4 so that the plurality of pressure sensing units CE6 to CE10 face the fourth side surface 901d and the first side surface 901a of the lower cover 900, and the fourth protrusions 534 can be respectively set on the plurality of pressure sensing units CE6 to CE10, and the fourth protrusions 534 can be attached to the fourth corner area CP4 by the fourth adhesive member 940.

[0255] Reference Fig.38, the first pressure sensor 511, the second pressure sensor 512, the third pressure sensor 513 and the fourth pressure sensor 514 are arranged at the first to fourth corner areas CP1, CP2, CP3 and CP4 of the lower cover 900 corresponding to the side edge of the display device 10_3, so that the plurality of pressure sensing units CE1 to CE7 at the side edge of the display device 10_3 can be used as physical buttons such as a volume control button, a power button, a call button, a camera button, an Internet button and a squeeze sensing button. Therefore, the non-display area from which an image is not output can be used as a physical button for executing a specific function.

[0256] Fig.39 is a plan view schematically showing a lower cover and a pressure sensor provided on the lower cover according to another exemplary embodiment, Fig.40 is a perspective view schematically illustrating a pressure sensor of a display device according to another exemplary embodiment. Fig.39 and Fig.40 The display device and Figure 31 to Figure 36 The difference between the aforementioned display device and the pressure sensor is that the pressure sensor is arranged to extend to the side surface and the corner of the lower cover. Therefore, the pressure sensor of the pressure sensor is omitted. Figure 31 to Figure 36 Description of the exemplary embodiments of the present invention is repeated, and differences will be mainly described.

[0257] Reference Fig.39 and Fig.40 In an exemplary embodiment, two pressure sensors 510 and 520 may be provided at four side surfaces of the display device 10_4. For example, the first pressure sensor 510 may be provided to extend from the second side surface 900b of the lower cover 900 to the third side surface 900c, and the second pressure sensor 520 may be provided to extend from the first side surface 900a of the lower cover 900 to the fourth side surface 900d. As described above, the first pressure sensor 510 and the second pressure sensor 520 are provided at the first side surface to the fourth side surface 900a, 900b, 900c, and 900d of the lower cover 900 corresponding to the four side surfaces of the display device 10_4, so that process convenience can be provided, and the non-display area from which the image is not output can be used as a physical button for executing a specific function.

[0258] Fig.41 is a perspective view schematically showing a display device according to another exemplary embodiment; Fig.42 is an exploded perspective view schematically showing a display device according to another exemplary embodiment; Fig.43 is a cross-sectional view schematically showing a display device according to another exemplary embodiment; Fig.44 is a plan view schematically showing a pressure sensor of a display device according to another exemplary embodiment; Fig.45is a view schematically showing the operation of a pressure sensor of another display device.

[0259] Reference Figure 41 to Figure 45 In an exemplary embodiment, the display device 10_5 may be a display device for a vehicle. For example, the display device 10_5 may be a smart key button (Start) for starting a vehicle. However, the display device 10_5 is not limited thereto, but may be a vehicle instrument panel, a door lock button, etc. Hereinafter, a case where the display device 10_5 is a smart key button will be described as an example.

[0260] The smart key button 10_5 may include a cover window CW, a display panel PNL located below the cover window CW, a pressure sensor 500_3 located below the display panel PNL, and a lower cover BC. The cover window CW, the display panel PNL, and the pressure sensor 500_3 may be accommodated in the lower cover BC. However, the inventive concept is not limited thereto.

[0261] The cover window CW and the display panel PNL may be attached and fixed to each other by a first adhesive layer CL1, the display panel PNL and the pressure sensor 500_3 may be attached and fixed to each other by a second adhesive layer CL2, and the pressure sensor 500_3 and the bottom surface of the lower cover BC may be attached and fixed to each other by a third adhesive layer CL3.

[0262] In an exemplary embodiment, the pressure sensor 500_3 is disposed over the entire lower surface of the display panel PNL, but the inventive concept is not limited thereto. The pressure sensor 500_3 may be disposed on a portion of the lower surface of the display panel PNL, and a plurality of pressure sensors 500_3 may be disposed on the lower surface of the display panel PNL.

[0263] In an exemplary embodiment, the pressure sensor 500_3 may include a pressure sensing unit CE. Fig.42 FIG. 5 shows that the pressure sensor 500_3 is provided with one pressure sensing unit CE, but the inventive concept is not limited thereto, and the pressure sensor 500_3 may be provided with a plurality of pressure sensing units CE.

[0264] The pressure sensing unit CE may include a driving connection electrode TCE, a sensing connection electrode RCE, a plurality of driving electrodes TE1 extending from the driving connection electrode TCE, a plurality of sensing electrodes RE1 extending from the sensing connection electrode RCE, and a pressure sensing layer PSL. The driving connection electrode TCE and the sensing connection electrode RCE may be arranged to correspond to the shape of the smart key button 10_5. For example, when the smart key button 10_5 has a circular shape, the driving connection electrode RCE may have a curvature corresponding to the shape of the smart key button 10_5 and may be arranged in the form of a semicircular edge, and the sensing connection electrode RCE may be symmetrical with the driving connection electrode TCE and may be arranged in the form of a semicircular edge. The driving connection electrode TCE is connected to the driving line TL, and the sensing connection electrode RCE is connected to the sensing line RL. However, the inventive concept is not limited thereto.

[0265] The driving electrodes TE1 and the sensing electrodes RE1 may be arranged alternately, and the pressure sensing layer PSL may be arranged to overlap the driving electrodes TE1 and the sensing electrodes RE1. As described above, because the contact area of ​​the pressure sensing layer PSL with the plurality of driving electrodes TE1 and the plurality of sensing electrodes RE1 changes according to the pressure applied to the pressure sensing unit CE, the resistance value of the sensing line RL electrically connected to the plurality of sensing electrodes RE1 changes, and thus a change in the current value or the voltage value is sensed, thereby sensing the pressure pressed by the user's hand. Similarly, the smart key button 10_5 is provided with a pressure sensor 500_3, so that the smart key button 10_5 can be used as a physical button, and the reliability of the operation of the smart key button 10_5 can be improved.

[0266] As described above, according to the display device of the exemplary embodiment, the waterproof member and the pressure sensor have various shapes, so that the degree of freedom in designing the display device can be increased and the pressure sensor can be utilized in various areas of the display device.

[0267] The effects of the present invention are not limited to the foregoing, and other various effects are expected herein.

[0268] Although exemplary embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as disclosed in the accompanying claims.

Claims

1. A display device, comprising: Cover window, including light-transmitting area and light-blocking area; A display panel is arranged below the light-transmitting area; as well as A pressure sensor is arranged below the light blocking area.

2. The display device according to claim 1, wherein: The light blocking area includes a plurality of holes, and the pressure sensor includes a plurality of opening portions corresponding to the plurality of holes.

3. The display device according to claim 2, wherein: The pressure sensor further includes a pressure sensing unit disposed between the plurality of opening portions.

4. The display device according to claim 3, further comprising a protrusion disposed on the pressure sensing unit, in, The protrusion is attached to the pressure sensing unit through a first adhesive member.

5. The display device according to claim 4, wherein: The protrusion is attached to the rear surface of the cover window by a second adhesive member.

6. The display device according to claim 5, further comprising: The middle frame is arranged below the display panel. Wherein, the lower surface of the pressure sensor is supported by the middle frame.

7. The display device according to claim 1, wherein: The pressure sensor includes a pressure sensing unit; and The pressure sensing unit includes a driving electrode and a sensing electrode disposed on one surface of a first substrate, and a pressure sensing layer disposed on one surface of a second substrate facing the one surface of the first substrate.

8. A display device, comprising: Display panel; A middle frame, arranged below the display panel; A lower cover, disposed below the middle frame, and comprising a bottom surface and a side surface bent upward from the bottom surface; as well as A pressure sensor is disposed on the side surface of the lower cover.

9. The display device according to claim 8, wherein: The side surface comprises: a first side surface and a second side surface facing each other in a first direction; and The third side surface and the fourth side surface face each other in a second direction perpendicular to the first direction.

10. The display device according to claim 9, wherein: The pressure sensor comprises: A first pressure sensor is disposed on the third side surface; and A second pressure sensor is disposed on the fourth side surface.

11. The display device according to claim 10, wherein: The first pressure sensor is arranged to extend to the second side surface; and The second pressure sensor is configured to extend to the first side surface.

12. The display device according to claim 9, wherein: The lower cover includes a first corner region between the first side surface and the fourth side surface, a second corner region between the third side surface and the second side surface, a third corner region between the second side surface and the fourth side surface, and a fourth corner region between the third side surface and the first side surface; as well as The pressure sensor is disposed in at least one of the first to fourth angular regions.

13. The display device according to claim 12, wherein: The pressure sensor comprises: a first pressure sensor disposed on the third side surface and the second corner area; and A second pressure sensor is disposed on the fourth side surface and the first corner area.

14. The display device according to claim 13, wherein: The first pressure sensor is arranged to extend to the second side surface.

15. The display device according to claim 14, wherein: The second pressure sensor is configured to extend to the first side surface.

16. The display device according to claim 8, wherein: The pressure sensor includes a pressure sensing unit; and The pressure sensing unit includes a driving electrode and a sensing electrode disposed on one surface of a first substrate, and a pressure sensing layer disposed on one surface of a second substrate facing the one surface of the first substrate.

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