Display device

Abstract

To provide a display device for effectively transmitting vibrations generated by a vibration film to a user.SOLUTION: A display device 100 includes, in order from the z-axis direction to the -z-axis direction, a cover window CW, a display panel 110, a first plate PLT1 and a second plate PLT2, a vibration bracket 200, and a vibration film 300. The vibration bracket 200 includes: legs protruding toward the +-axis direction and transmitting vibrations in the z-axis direction; and a plurality of bridges extending from the legs and transmitting vibrations in the x-axis and y-axis directions.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a display device, and more particularly to a display device that includes a bracket capable of intensifying vibration activated by touch in a depth direction and that can be mounted on a vehicle. [Background technology]

[0002] The display device can be installed in electronic products or home appliances such as televisions, monitors, laptops, smartphones, tablet computers, electronic pads, wearable devices, watches, navigation systems, or vehicle control display devices, and can be used as a screen for displaying images.

[0003] The display device may include an acoustic device. The acoustic device is a device that generates sound by vibrating a plate. The acoustic device may be a vibration device. The vibration device is generally disposed on the rear surface of the display panel. Since the sound output from the acoustic device travels to the rear or below the display device, there is a problem that the sound quality is deteriorated due to interference with surrounding structures and the user's immersive feeling is reduced.

[0004] In addition, the display device may apply a haptic characteristic indicating the presence or absence of a user operation by vibrating the display device in response to a user operation such as a touch input. In order to provide the haptic characteristic of the display device, vibration energy must be generated in response to an electrical signal. In order to generate the vibration energy, a vibration device such as a piezoelectric actuator using a piezoelectric material may be used. The piezoelectric actuator may be configured in a film shape. It is necessary to efficiently transmit the vibration generated by such a vibration device to the user. Summary of the Invention [Problem to be solved by the invention]

[0005] The present disclosure is for effectively transmitting the vibration of a vibration film included in a display device to a user. Specifically, it is for effectively transmitting the vibration generated by the vibration film in the depth direction.

Means for Solving the Problems

[0006] According to the present disclosure, there is disclosed a display device including a cover window, a display panel disposed below the cover window, at least one plate disposed below the display panel, a vibration bracket attached to the lower part of the at least one plate, and a vibration film attached to the lower part of the vibration bracket, wherein the vibration bracket includes legs protruding upward.

[0007] According to the present invention, the leg structure of the vibration bracket can reinforce the vibration in the depth direction, and the bridge structure can reinforce the vibration in the planar direction. The user can experience a deep haptic reaction and sound.

[0008] According to the present disclosure, when the vibration generated by the vibration film is transmitted to the second plate, the intensity thereof can be enhanced by the vibration bracket. The enhanced vibration may be in the z-axis direction which is the depth direction. The enhanced vibration may also be in the x-axis and y-axis directions which are the planar directions. When the vibration is applied haptically, the user can experience a touch reaction enhanced in the depth direction. When the vibration is applied acoustically, the user can experience an enhanced sound.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Embodiments for Carrying Out the Invention

[0010] Advantages, features, and methods for achieving them of the present invention will become apparent by referring to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and can be embodied in various different forms. Merely, these embodiments are provided to completely disclose the present invention and enable those with ordinary knowledge in the technical field to which the present invention pertains to fully understand the scope of the invention. The present invention is defined only by the scope of the claims.

[0011] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are exemplary, and the present invention is not limited to the matters illustrated. Throughout the specification, the same reference numerals refer to the same components. Further, in describing the present invention, when it is determined that a detailed description of related known technologies would unnecessarily obscure the gist of the present invention, the detailed description thereof is omitted. When terms such as "including", "having", "comprising" as referred to in this specification are used, other parts can be added unless "only" is used. When a component is expressed in the singular form, it can include the plural form as well unless otherwise specified.

[0012] In interpreting a component, even if there is no separate explicit description, it is interpreted including errors.

[0013] In the case of an explanation of a positional relationship, for example, when the positional relationship between two parts is described such as "on ~", "above ~", "below ~", "next to ~", etc., unless "immediately" or "directly" is used, one or more other parts may be located between the two parts.

[0014] When an element or layer is referred to as "on" another element or layer, it includes both the case where it is directly above the other element and the case where another layer or another element is interposed therebetween.

[0015] The first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are only used to distinguish one component from another. Thus, the first component referred to below may be the second component within the technical idea of the present invention.

[0016] Throughout the specification, similar reference numerals refer to similar components.

[0017] The size and thickness of each configuration shown in the drawings are shown for convenience of explanation, and the present invention is not necessarily limited to the size and thickness of the illustrated configuration.

[0018] Each feature of various embodiments of the present invention can be partially or wholly combined or combined with each other, and various linkages and drives are technically possible as fully understood by those skilled in the art. Each embodiment may be implemented independently of each other or may be implemented in combination with each other.

[0019] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0020] The "display device" in the present disclosure may include a liquid crystal module (Liquid Crystal Module; LCM), an organic light emitting module (OLED Module), a quantum dot module (Quantum Dot Module), etc., which include a display panel and a driving unit for driving the display panel. It may also include a laptop, a television, a computer monitor, an automotive display or other forms of a vehicle, etc., which are complete products (complete product or final product) including an LCM, an OLED module, a QD module, etc., and an equipment display, a mobile electronic device such as a smartphone or an electronic pad, etc. It may also include a set electronic device (set electronic device) or a set device (set device or set apparatus).

[0021] Therefore, the display device in the present disclosure may include from a display device itself in a narrow sense such as an LCM, an OLED module, a QD module, etc. to a set device which is an application product or a final consumer product including an LCM, an OLED module, a QD module, etc.

[0022] In some cases, an LCM, an OLED module, or a QD module composed of a display panel and a driving unit, etc., may be referred to as a "display device" in a narrow sense, and an electronic device as a finished product including the LCM, the OLED module, or the QD module may be distinguished and referred to as a "set device". For example, the display device in a narrow sense includes a liquid crystal (LCD), an organic light emitting (OLED) or a quantum dot (Quantum Dot) display panel and a source PCB which is a control unit for driving the display panel, and the set device may be a concept further including a set PCB which is a set control unit electrically connected to the source PCB and controlling the whole set device.

[0023] The display panel used in this embodiment can be any form of display panel such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, a quantum dot (QD) display panel, and an electroluminescent display panel, and is not limited to a specific display panel that can be bezel-bent with a flexible substrate for the organic light emitting diode (OLED) display panel of this embodiment and a lower backplane support structure. Further, the display panel used in the display device according to the embodiment of the present disclosure is not limited by the shape and size of the display panel.

[0024] For example, when the display panel is an organic light emitting diode (OLED) display panel, it may include a plurality of gate lines, data lines, and pixels (Pixels) formed in the intersection regions of the gate lines and data lines. Further, it may be configured to include an array including thin film transistors which are elements for selectively applying a voltage to each pixel, an organic light emitting diode (OLED) layer on the array, and a sealing substrate or a sealing layer (Encapsulation) disposed on the array so as to cover the organic light emitting diode layer. The sealing layer can protect the thin film transistors and the organic light emitting diode layer from external impacts, and prevent moisture and oxygen from penetrating into the organic light emitting diode layer. Further, the layer formed on the array may include an inorganic light emitting layer, for example, a nano-sized material layer or quantum dots.

[0025] The display panel in the present disclosure exemplifies an exemplary organic light emitting diode (OLED) display panel that can be integrated into a display device.

[0026] FIG. 1 is a diagram showing a display device according to the present disclosure.

[0027] Referring to FIG. 1, the display device 100 includes a cover window CW, a display panel 110, a first plate PLT1, a second plate PLT2, a vibration bracket 200, and a vibration film 300. The display device 100 includes a source film SF electrically connected to the display panel 110, and a source board SPCB electrically connected to the source film SF. The display device 100 includes a control board CPCB electrically connected to the vibration film 300 and electrically connected to the source board SPCB.

[0028] In describing this embodiment, the lower direction refers to the -z axis direction from the cover window CW toward the control board CPCB. Further, the upper direction refers to the opposite direction, that is, the z axis direction from the control board CPCB toward the cover window CW.

[0029] The user's touch operation is performed on the cover window CW. The vibration corresponding to the touch is generated from the vibration film 300. The generated vibration travels from the vibration film 300 toward the cover window CW. Therefore, in terms of the progression of the vibration, the z-axis direction or the upper direction may be referred to as the depth direction.

[0030] The cover window CW is disposed above the display panel 110. The cover window CW may be made of a glass material or a plastic material. When there is a touch input by the user, the cover window CW may be touched by the user's finger or an electronic device such as a pen.

[0031] The display panel 110 is disposed below the cover window CW. The display panel 110 and the cover window CW can be bonded to each other with an adhesive material such as OCA, OCR, or PSA. The display panel 110 may include elements such as a polarizing plate, a panel layer, and a touch electrode. In particular, when the display panel 110 is applied to a vehicle, it may include an element such as a viewing angle control film. The viewing angle control film is a film for controlling the angle of light emitted from the display device 100. For example, recently, a display device 100 that is integrally formed up to the cluster on the driver's seat, the center console display in the center, and the multimedia display for the passenger seat has been used. The viewing angle control film can prevent the video displayed on the multimedia display for the passenger seat from being reflected in the driver's field of view.

[0032] The first plate PLT1 is disposed below the display panel 110. The first plate PLT1 may be referred to as a back plate. The first plate PLT1 can serve to reinforce the rigidity of the display panel 110 as a rigid structure. The first plate PLT1 may be formed of a plastic thin film.

[0033] The second plate PLT2 is disposed below the first plate PLT1. The second plate PLT2 may be a metallic material. The second plate PLT2 can serve to reinforce the rigidity of the display panel 110. The second plate PLT2 can serve to dissipate heat generated from the display panel 110, the control board CPCB, and the source board SPCB. The second plate PLT2 may be a metallic material such as aluminum or magnesium, or a plastic material with excellent thermal conductivity.

[0034] The vibration bracket 200 is disposed below the second plate PLT2 or attached to the lower part of the second plate PLT2. The vibration bracket 200 can be attached to the second plate PLT2 by a predetermined adhesive substance. The adhesive substance (not shown) may be formed of materials such as adhesive tape, OCA, PSA, OCR, etc. The vibration bracket 200 and the second plate PLT2 may be directly attached to each other by the adhesive substance. The vibration bracket 200 may be a plastic or metallic material. The vibration bracket 200 serves to transmit vibrations generated from the vibration film 300 to the second plate PLT2. Referring to the coordinate system of the display device 100 shown in FIG. 1, the x-axis direction can be defined as the width direction, the y-axis direction as the height direction, and the z-axis direction as the depth direction. The user comes to view the display device 100 from the z-axis direction and inputs a touch from the z-axis direction to the -z-axis direction with respect to the cover window CW. The vibration bracket 200 includes a bridge that transmits vibrations in the x-axis and y-axis directions and legs that transmit vibrations in the z-axis direction. The bridge and legs of the vibration bracket 200 will be described later.

[0035] According to the present disclosure, when the vibration generated by the vibration film 300 is transmitted to the second plate PLT2, its intensity can be enhanced by the vibration bracket 200. The vibration to be enhanced may be in the z-axis direction, which is the depth direction. The vibration to be enhanced may also be in the x-axis and y-axis directions, which are the planar directions. When the vibration is applied haptically, the user can experience a touch reaction enhanced in the depth direction. When the vibration is applied acoustically, the user can experience an enhanced sound.

[0036] The vibration film 300 is disposed below the vibration bracket 200. The vibration film 300 can be configured in a thin film shape. The vibration film 300 may include, for example, a positive electrode and a negative electrode for applying an electrical signal, and may be in a form including a piezoelectric ceramic disposed between the positive electrode and the negative electrode to generate vibration energy. The vibration film 300 may be called by terms such as an acoustic generation module, an acoustic generation device, a film actuator, a film-type composite actuator, a film speaker, etc. The vibration generated by the vibration film 300 can use the second plate PLT2 as a diaphragm. The vibration film 300 can be attached to the vibration bracket 200 by an adhesive substance. For this purpose, the vibration bracket 200 may include a horizontal portion, which will be described later. In order to apply an electrical signal to the electrodes of the vibration film 300, the vibration film 300 may be connected to a control board CPCB using a predetermined connector, which will be described later.

[0037] The source board SPCB may be electrically connected to the display panel 110 via the source film SF. The source film SF may be in the form of a chip-on-film and may be in the form of a flexible printed circuit board incorporating an IC called a source driving unit or a data driving unit.

[0038] The control board CPCB may be disposed below the vibration film 300. The control board CPCB may implement various ICs such as a timing controller, a power management circuit, and a touch driving circuit, and may be a rigid printed circuit board. The control board CPCB supplies a signal for driving the vibration film 300 to the vibration film 300. For this purpose, a connector can electrically connect the control board CPCB and the vibration film 300. A detailed description of the connector will be given later. The control board CPCB may be electrically connected to the source board SPCB via a connection member. The connection member may be, for example, a flexible printed circuit, a flexible flat cable, or the like. In some cases, the source board SPCB and the control board CPCB may be integrated and embodied as one circuit board.

[0039] The display device 100 according to FIG. 1 can be applied to a TV, a monitor, a PC, and a tablet. Further, the display device 100 can be applied to a vehicle. For example, it can be applied to a cluster display, a center console display, a passenger seat display, a rear seat display, etc. of a vehicle.

[0040] FIG. 2 is a conceptual diagram for explaining the display device 100 according to the present disclosure.

[0041] Referring to FIG. 2, the display device 100 according to the present disclosure includes a display panel 110, a gate driving unit 120, a data driving unit 130, a timing controller 140, a touch driving unit 150, and a power driving unit 160.

[0042] The display panel 110 includes a plurality of gate lines GL and a plurality of data lines DL. A plurality of sub-pixels SP are arranged at positions where the gate line GL and the data line DL intersect. Further, a plurality of touch electrodes may be arranged or incorporated in the display panel 110. Also, a plurality of touch lines TL for electrically connecting the touch electrodes and the touch driving unit 150 are arranged in the display panel 110.

[0043] The gate driver unit 120 outputs a signal for controlling the transistors of the sub-pixels SP. The gate driver unit 120 receives an input of a gate control signal GCS from the timing controller 140. When a data voltage corresponding to video data is supplied to the sub-pixels SP from the data driver unit 130, a video corresponding to the gradation of the video data is output to the screen under the control of the gate driver unit 120. The gate driver unit 120 may be located only on one side of the display panel 110 in the form of one or more integrated circuits ICs, or may be located on both sides. The gate driver unit 120 may be embodied in the form of a GIP directly incorporated into the non-display area of the display panel 110.

[0044] The data driver unit 130 receives a data control signal DCS and digital-form video data DATA from the timing controller 140. The data driver unit 130 converts the video data DATA into an analog-form data voltage and outputs it to the data line DL. The data driver unit 130 may be in the form of an integrated circuit IC.

[0045] The timing controller 140 supplies control signals to the gate driver unit 120 and the data driver unit 130, and controls the operations of the gate driver unit 120 and the data driver unit 130. The timing controller 140 receives various timing signals including a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, a clock signal, etc. together with the video data DATA from an external system (e.g., a host system). The timing controller 140 generates a data control signal DCS and a gate control signal GCS using the various timing signals received from the external system, and outputs them to the data driver unit 130 and the gate driver unit 120, respectively. For example, the signals output by the timing controller 140 for controlling the gate driver unit 120 include a gate start pulse, a gate shift clock, a gate output enable signal, etc. For example, the signals output by the timing controller 140 for controlling the data driver unit 130 include a source start pulse, a source sampling clock, a source output enable signal, etc.

[0046] The touch driving unit 150 senses the touch of a user input to the display device 100. The touch driving unit 150 can sense the presence and position of the touch based on the difference in capacitance between the electrodes formed on the display panel 110. The touch driving unit 150 can generate a touch sensing output signal for the presence and position of the touch.

[0047] The power driving unit 160 adjusts the DC input voltage supplied from an external system to generate the power required for the display device 100. The power driving unit 160 can generate a converter voltage required for driving various ICs, a high potential voltage and a low potential voltage supplied to the sub-pixels, a gate high voltage and a gate low voltage supplied to the gate driving unit 120, a gamma voltage supplied to the data driving unit 130, and the like.

[0048] FIG. 3 is a diagram for exemplarily explaining the structure in which a touch panel is incorporated in the display device according to the present disclosure and the structure of sub-pixels.

[0049] Referring to FIG. 3, the display area AA of the display panel in the display device according to the present disclosure is shown. In the display area AA, a plurality of sub-pixels SP are arranged on the substrate SUB. Each sub-pixel SP may include a light emitting element ED, a first transistor T1 for driving the light emitting element ED, a second transistor T2 for transmitting a data voltage Vdata to the first node N1 of the first transistor T1, a storage capacitor Cst for maintaining a constant voltage during one frame, and the like.

[0050] The first transistor T1 may include a first node N1 to which a data voltage Vdata is applied via the second transistor T2, a second node N2 electrically connected to the light emitting element ED, and a third node N3 to which a driving voltage VDD is applied from a driving voltage line DVL. The first node N1 is a gate node, the second node N2 may be a source node or a drain node, and the third node N3 may be a drain node or a source node. Such a first transistor T1 is called a driving transistor for driving the light emitting element ED.

[0051] The light-emitting element ED may include a first electrode (e.g., an anode electrode), a light-emitting layer, and a second electrode (e.g., a cathode electrode). The first electrode may be electrically connected to the second node N2 of the first transistor T1, and a base voltage VSS may be applied to the second electrode. The light-emitting layer in such a light-emitting element ED may be an organic light-emitting layer containing an organic substance. In this case, the light-emitting element ED may be an organic light-emitting diode.

[0052] The second transistor T2 is controlled to be turned on or off by a scan signal SCAN applied via a gate line GL, and may be electrically connected between the first node N1 of the first transistor T1 and a data line DL. Such a second transistor T2 is called a switching transistor.

[0053] When the second transistor T2 is turned on by the scan signal SCAN, the data voltage Vdata supplied via the data line DL is transmitted to the first node N1 of the first transistor T1. The storage capacitor Cst may be electrically connected between the first node N1 and the second node N2 of the first transistor T1.

[0054] Each sub-pixel SP may have a 2T1C structure including two transistors T1, T2 and one capacitor Cst, and in some cases, may further include one or more transistors and may further include one or more capacitors.

[0055] The storage capacitor Cst may not be a parasitic capacitor that may exist between the first node N1 and the second node N2 of the first transistor T1, but may be an external capacitor intentionally designed outside the first transistor T1. The first transistor T1 and the second transistor T2 may each be an n-type transistor or a p-type transistor.

[0056] On one side, circuit elements such as a light-emitting element ED, two or more transistors T1, T2, and one or more capacitors Cst are arranged on the display panel 110. Since such circuit elements are vulnerable to external moisture, oxygen, etc., a sealing layer ENCAP may be arranged on the display panel 110 to prevent external moisture and oxygen from penetrating into the circuit elements. In the display device 100 according to the present disclosure, a touch screen panel TSP may be formed on the sealing layer ENCAP and incorporated into the display panel 110. That is, in the display device 100, a plurality of touch electrodes TE forming the touch screen panel TSP may be arranged on the sealing layer ENCAP to constitute the display panel 110.

[0057] The display device 100 adopts a touch sensing method based on capacitance, and may sense touch by a mutual capacitance method or may sense touch by a self capacitance method.

[0058] In the case of a touch sensing method based on mutual capacitance, the plurality of touch electrodes TE are classified into a touch driving electrode to which a touch driving signal is applied via a touch driving line and a touch sensing electrode that forms a capacitance with the touch driving electrode and from which a touch sensing signal is sensed via a touch sensing line. At this time, the touch lines including the touch driving line and the touch sensing line can be called touch lines, and the touch signals including the touch driving signal and the touch sensing signal can be called touch signals. In the case of such a touch sensing method based on mutual capacitance, the presence or absence of touch and the touch coordinates, etc. are detected based on the change in the mutual capacitance generated between the touch driving electrode and the touch sensing electrode depending on the presence or absence of a pointer such as a finger or a pen.

[0059] In the case of the touch sensing method based on self - capacitance, each touch electrode TE serves both as a touch driving electrode and a touch sensing electrode. That is, a touch driving signal is applied to the touch electrode TE via one touch line, and the touch sensing signal transmitted from the touch electrode TE to which the touch driving signal is applied is received via the same touch line. As a result, in the touch sensing method based on self - capacitance, the distinction between the touch driving electrode and the touch sensing electrode, and the distinction between the touch driving line and the touch sensing line disappear. In the case of such a touch sensing method based on self - capacitance, the presence or absence of touch and the touch coordinates are detected based on the change in capacitance generated between a pointer such as a finger or a pen and the touch electrode TE.

[0060] Thus, the touch display device 100 may sense touch in a touch sensing method based on mutual capacitance or may sense touch in a touch sensing method based on self - capacitance.

[0061] FIG. 4 is a diagram schematically showing a touch electrode structure for touch sensing based on mutual capacitance in a display device according to the present disclosure.

[0062] Referring to FIG. 4, the touch electrode structure of the display device according to the present disclosure may include a plurality of X - touch electrode lines X - TEL and a plurality of Y - touch electrode lines Y - TEL. Here, the plurality of X - touch electrode lines X - TEL and the plurality of Y - touch electrode lines Y - TEL are located above the encapsulation layer ENCAP. Each of the plurality of X - touch electrode lines X - TEL may be arranged in a first direction, and each of the plurality of Y - touch electrode lines Y - TEL may be arranged in a second direction different from the first direction.

[0063] Each of the plurality of X-touch electrode lines X-TEL may be composed of a plurality of electrically connected X-touch electrodes. Each of the plurality of Y-touch electrode lines Y-TEL may be composed of a plurality of electrically connected Y-touch electrodes. Here, the plurality of X-touch electrodes and the plurality of Y-touch electrodes are electrodes included in the plurality of touch electrodes TE and are electrodes whose roles (functions) are classified. For example, the plurality of X-touch electrodes constituting each of the plurality of X-touch electrode lines X-TEL may be touch driving electrodes, and the plurality of Y-touch electrodes constituting each of the plurality of Y-touch electrode lines Y-TEL may be touch sensing electrodes. In this case, each of the plurality of X-touch electrode lines X-TEL corresponds to a touch driving electrode line, and each of the plurality of Y-touch electrode lines Y-TEL corresponds to a touch sensing electrode line.

[0064] The plurality of touch lines TL may include one or more X-touch lines X-TL connected to each of the plurality of X-touch electrode lines X-TEL and one or more Y-touch lines Y-TL connected to each of the plurality of Y-touch electrode lines Y-TEL.

[0065] FIG. 5 is a diagram exemplarily showing a cross-section of a part of the display device according to the present disclosure.

[0066] Referring to FIG. 5, a first transistor T1, which is a driving transistor, is disposed on a substrate SUB in a sub-pixel SP located in a display area AA. The first transistor T1 includes a gate electrode GE, a source electrode SE, a drain electrode DE, a semiconductor layer SEMI, and the like.

[0067] The gate electrode GE and the semiconductor layer SEMI overlap with each other with a gate insulating film GI interposed therebetween. The source electrode SE is formed on an insulating layer INS and contacts one side of the semiconductor layer SEMI, and the drain electrode DE is formed on the insulating layer INS and contacts the other side of the semiconductor layer SEMI.

[0068] The light-emitting element ED includes a first electrode E1 corresponding to the anode electrode, a second electrode E2 corresponding to the cathode electrode, and a light-emitting layer EL disposed therebetween. The first electrode E1 is electrically connected to the source electrode SE of the first transistor T1 exposed through a contact hole penetrating the planarization film PLN. The light-emitting layer EL is formed on the first electrode E1 in a light-emitting region partitioned by the bank BANK. The second electrode E2 is formed so as to face the first electrode E1 with the light-emitting layer EL interposed therebetween.

[0069] The encapsulation layer ENCAP is a layer that protects the light-emitting element ED vulnerable to external moisture and oxygen. The encapsulation layer ENCAP may be formed of one layer or a plurality of laminated structures PAS1, PCL, PAS2. The encapsulation layer ENCAP may include one or more inorganic encapsulation layers PAS1, PAS2, and one or more organic encapsulation layers PCL. The inorganic encapsulation layers PAS1, PAS2 may be formed of an inorganic insulating material capable of low-temperature vapor deposition such as silicon nitride (SiN x ), silicon oxide (SiO x ), silicon oxynitride (SiON), or aluminum oxide (Al2O3). The organic encapsulation layer PCL may be formed by exposing the end of the first inorganic encapsulation layer PAS1. The organic encapsulation layer PCL can play a buffering role in relaxing the stress between layers due to the bending of the touch display device, which is an organic light-emitting display device, and can play a role in enhancing the planarization performance. The organic encapsulation layer PCL may be formed of an organic insulating material such as an acrylic resin, an epoxy resin, a polyimide, a polyethylene, or a silicon oxycarbon (SiOC) as an example.

[0070] One or more dams DAM may be formed in the non-display area NAA. The dam DAM can prevent the organic encapsulation layer PCL from collapsing in the non-display area NAA and invading the pad area PA. The dam DAM may have a double structure of a first dam DAM1 and a second dam DAM2. Each dam DAM1, DAM2 may be formed of a single-layer structure or a multilayer structure. For example, the dam DAM may have a laminated structure of the bank BANK, the first inorganic encapsulation layer PAS1, and the second inorganic encapsulation layer PAS2.

[0071] The touch buffer layer T-BUF may be disposed on the encapsulation layer ENCAP. The touch buffer layer T-BUF may be positioned between the touch sensor metal including the touch electrodes (X-TE and) Y-TE and the touch electrode connection lines X-CL, Y-CL, and the second electrode E2 of the light emitting element ED. The touch buffer layer T-BUF may be designed to maintain a predetermined minimum separation distance (e.g., 1 μm) between the touch sensor metal and the second electrode E2 of the light emitting element ED. Thereby, the parasitic capacitance formed between the touch sensor metal and the second electrode E2 of the light emitting element ED can be reduced or prevented, and the decrease in touch sensitivity due to the parasitic capacitance can be prevented.

[0072] The X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL are disposed on the touch buffer layer T-BUF, and the X-touch electrode line X-TEL and the Y-touch electrode line Y-TEL may be disposed so as to intersect. The Y-touch electrode line Y-TEL may include a plurality of Y-touch electrode connection lines Y-CL that electrically connect between the plurality of Y-touch electrodes Y-TE. At this time, the plurality of Y-touch electrodes (Y-TE) and the plurality of Y-touch electrode connection lines Y-CL may be located in different layers with the interlayer dielectric ILD therebetween.

[0073] The Y-touch electrode line Y-TEL may be electrically connected to the touch driving unit 150 via the Y-touch line Y-TL and the Y-touch pad Y-TP. Similarly, the X-touch electrode line X-TEL may be electrically connected to the touch driving unit 150 via the X-touch line X-TL and the X-touch pad (not shown).

[0074] The Y-touch line Y-TL may be electrically connected to the Y-touch electrode Y-TE via a touch line contact hole or may be integrated with the Y-touch electrode Y-TE. Such a Y-touch line Y-TL extends to the non-display area NAA and may be electrically connected to the Y-touch pad Y-TP through the upper and side surfaces of the encapsulation layer ENCAP and the upper and side surfaces of the dam DAM. Thereby, the Y-touch line Y-TL can be electrically connected to the touch driving unit 150 via the Y-touch pad Y-TP. In the non-display area NAA, a Y-touch bridge wiring Y-BL connected via a contact hole CH may be disposed below the Y-touch line Y-TL. Since the Y-touch line Y-TL and the Y-touch bridge wiring Y-BL are electrically connected via at least one contact hole CH formed at a certain interval, the same touch driving signal or touch sensing signal can be transmitted.

[0075] On the other hand, a touch protection film PAC may be disposed on the upper portions of the X-touch electrode (X-TE) and the Y-touch electrode Y-TE. Such a touch protection film PAC may extend to the front or rear portion of the dam DAM and may also be disposed on the X-touch line X-TL and the Y-touch line Y-TL.

[0076] FIG. 6 is a perspective view showing a display device according to the present disclosure.

[0077] FIG. 7 is an enlarged view of a portion A shown in the display device of FIG. 6.

[0078] FIG. 8 is a cross-sectional view showing a cross-section of the B-B' portion in the display device of FIG. 7.

[0079] Referring to FIG. 6, as elements constituting the display device 100, a cover window CW, a second plate PLT2, a vibration bracket 200, and a vibration film 300 are shown.

[0080] The cover window CW is disposed at the outermost part where the user's touch is input. The direction from the cover window CW toward the vibration film 300 is defined as the -z axis direction and the lower direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z axis direction and the upper direction.

[0081] Between the cover window CW and the second plate PLT2, as described with reference to FIG. 1, the display panel 110 and the first plate PLT1 may be disposed, and the detailed description is incorporated by reference to FIG. 1 and the like.

[0082] The second plate PLT2 is disposed below the cover window CW. The second plate PLT2 may be a metal material such as aluminum or magnesium or a plastic material. The second plate PLT2 can serve as a diaphragm, and the vibration generated by the vibration film 300 is transmitted to the second plate PLT2 via the vibration bracket 200. When the present disclosure is applied to haptics, the second plate PLT2 can enhance haptic vibration. When the present disclosure is applied to acoustics, the second plate PLT2 can enhance sound.

[0083] The vibration bracket 200 is disposed below the second plate PLT2. The vibration bracket 200 can be attached to the second plate PLT2 using a predetermined adhesive substance. As shown in FIGS. 7 and 8, the vibration bracket 200 includes a horizontal portion 210, legs 220, and a bridge 230.

[0084] The horizontal part 210 refers to the part of the vibration bracket 200 that is horizontal with respect to the plane defined by the x-axis and the y-axis. The horizontal part 210 may be in the shape of a square plate with the same vertical and horizontal sizes, or may be in the shape of a rectangular plate with different vertical and horizontal sizes. A vibration film 300 may be attached to the lower part of the horizontal part 210. A predetermined adhesive material may be used to attach the vibration film 300 to the horizontal part 210. As shown in FIG. 6, one vibration bracket 200 may include six horizontal parts 210. The number six is an example, and the technical idea of the present disclosure is not limited to that number. As shown in the enlarged view of FIG. 7, each horizontal part 210 can be referred to as a first horizontal part 210a, a second horizontal part 210b, and a third horizontal part 210c. The vibration film 300 may be attached to each of the plurality of horizontal parts.

[0085] The leg 220 refers to the part that protrudes in the Z-axis direction, which is the upper direction, on one side and the other side of the horizontal part 210. The first leg 220a is the part that protrudes in the upper direction on one side of the horizontal part, and the second leg 220b is the part that protrudes in the upper direction on the other side of the horizontal part. The leg 220 may have a shape that extends along the y-axis direction of the horizontal part 210. Accordingly, one horizontal part 210 includes two legs 220.

[0086] Vibration is generated by the vibration film 300. The leg 220 can derive the effect of strengthening the vibration in the upper direction and the z-axis direction, which is the depth direction. Specifically, a second plate PLT2 is located in the upper direction, which is the protruding direction of the leg 220. Accordingly, the vibration of the second plate PLT2 is strengthened in the upper direction. A display panel and a cover window are located in the upper direction of the second plate PLT2. When the user inputs a touch to the cover window, when the display device according to the present disclosure is applied to haptics, the user can experience a haptic reaction with an increased sense of depth through the finger that has contacted the cover window. When the display device according to the present disclosure is applied to acoustics, when the user inputs a touch, the user can experience a sound strengthened in the depth direction.

[0087] On one hand, due to the leg 220, a separation gap GAP is formed between the vibration bracket 200 and the second plate PLT2. Inside the separation gap GAP, there may be no filling of any substance and only air in the atmosphere exists. In some cases, the inside of the separation gap GAP may be filled with a substance that enhances vibration. For example, the vibration enhancing substance may be called a piezoelectric material. The piezoelectric material may be one or more of PVDF (polyvinylidene fluoride), P(VDF-TrFE) (polyvinylidene fluoride-co-trifluoroethylene), relaxor ferroelectric polymer, P(VDF-TrFe-CFE), P(VDF-TrFE-CTFE), PVDF polymer doped with CNT (carbon nanotube), Polybis(trifluoroethoxy) phosphazene, etc., but is not limited thereto. For example, as the piezoelectric material, a polymer material having a light transmittance of a certain level or more and piezoelectricity can be applied.

[0088] Such a separation gap GAP may be 1 mm or more. Specifically, the distance between the lower surface of the second plate PLT2 and the upper surface of the horizontal portion 210b may be 1 mm or more as the separation gap GAP. When such a separation gap GAP is 2 mm, the vibration can exhibit optimal performance.

[0089] The bridge 230 has a shape extending between adjacent legs 220. As shown in FIG. 7, a third leg 220c is located on the other side of the first horizontal portion 210a. A first leg 220a is located on one side of the second horizontal portion 210b. The bridge 230 extends between the third leg 220c and the first leg 220a. In FIG. 7, the first bridge 230a to the fifth bridge 230e are shown. The number of bridges 230 is for illustration and does not limit the technical idea of the present disclosure.

[0090] Vibration is generated by the vibration film 300. The bridge 230 can derive the effect of enhancing the vibration in the plane direction defined by the x-axis and y-axis directions. Specifically, the bridge 230 has a shape extending in the plane direction. Thereby, the vibration is enhanced in the plane direction. The vibration generated when the user inputs a touch to the cover window can be enhanced in the plane direction.

[0091] FIG. 9 is a perspective view showing a display device according to the present disclosure.

[0092] FIG. 10 is a perspective view showing a display device according to the present disclosure.

[0093] With reference to FIGS. 9 and 10, the connection between the vibration film 300 and the control board CPCB according to the present disclosure will be described.

[0094] Referring to FIG. 9, as elements constituting the display device 100, a cover window CW, a second plate PLT2, a vibration bracket 200, a vibration film 300, a connector 400, a source board SPCB, and a source film SF are shown.

[0095] Referring to FIGS. 9 and 10, six vibration films 300 are shown. Each vibration film 300 is referred to as a first vibration film 300a, a second vibration film 300b, a third vibration film 300c, a fourth vibration film 300d, a fifth vibration film 300e, and a sixth vibration film 300f. The number of vibration films 300 is an example, and the technical idea of the present disclosure is not limited thereto.

[0096] Referring to FIGS. 9 and 10, two connectors 400 are shown. Each connector 400 is referred to as a first connector 410 and a second connector 420.

[0097] The cover window CW is disposed at the outermost where the user's touch is input. The direction from the cover window CW toward the vibration film 300 is defined as the -z axis direction and the lower direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z axis direction and the upper direction.

[0098] Between the cover window CW and the second plate PLT2, as described with reference to FIG. 1, the display panel 110 and the first plate PLT1 may be disposed. For a detailed description of the display panel 110 and the first plate PLT1, the description given with reference to FIG. 1 and the like is incorporated herein by reference. The display panel 110 and the source board SPCB are electrically connected to each other via the source film SF. For a detailed description of the source board SPCB and the source film SF, the description given with reference to FIG. 1 and the like is incorporated herein by reference.

[0099] The second plate PLT2 is disposed below the cover window CW. The vibration bracket 200 is disposed below the second plate PLT2. The vibration film 300 is disposed below the vibration bracket 200. For the description of the vibration bracket 200 and the vibration film 300, the description given with reference to FIGS. 6 to 8 is incorporated herein by reference.

[0100] The vibration film 300 is connected to the connector 400. The first connector 410 includes a first terminal 411 and a second terminal 412. The second connector 420 includes a first terminal 421 and a second terminal 422. The first to third vibration films 300a, 300b, 300c are connected to the first connector 410, and the fourth to sixth vibration films 300d, 300e, 300f are connected to the second connector 420.

[0101] Each of the connectors 410 and 420 may incorporate wiring for controlling the vibration of the vibration film 300. The vibration film 300 may include a positive electrode, a negative electrode, and a piezoelectric ceramic therebetween. The vibration film 300 can vibrate with an intensity corresponding to the voltage difference applied to the positive electrode and the negative electrode. Each of the connectors 410 and 420 may include wiring for applying a voltage to the positive electrode and the negative electrode. Such a voltage may be applied from the control board CPCB. The first terminals 411 and 421 are terminals for applying a voltage to the vibration film 300. The second terminals 412 and 422 are terminals for applying a voltage from the control board CPCB.

[0102] Each of the connectors 410 and 420 may have a different number of first terminals 411, 421 and second terminals 412, 422. In the example shown in FIG. 9, the number of the first terminals 411 and 421 is three, and the number of the second terminals 412 and 422 is one. Therefore, the number of the first terminals 411 and 421 may be larger than the number of the second terminals 412 and 422. The first terminal 411 is connected to the vibration films 300a, 300b, and 300c, respectively. The second terminal 412 is connected to the control board CPCB as shown in FIG. 10. The second connector 420 includes three first terminals 421 and one second terminal 422. The first terminal 421 is connected to the vibration films 300d, 300e, and 300f, respectively. The second terminal 422 is connected to the control board CPCB as shown in FIG. 10.

[0103] According to the present disclosure, six vibration films 300: 300a to 300f may be attached to one vibration bracket 200. The three vibration films 300a to 300c on one side of the display device 100 may be commonly connected to one first connector 410. The three vibration films 300d to 300f on the other side of the display device 100 may be commonly connected to one second connector 420. The first connector 410 and the second connector 420 may be connected to one control board CPCB via the second terminals 412 and 422.

[0104] FIG. 11 is a perspective view showing a display device according to the present disclosure.

[0105] FIG. 12 is a perspective view showing a display device according to the present disclosure.

[0106] Referring to FIGS. 11 and 12, another method of connecting the vibration film 300 and the control board CPCB according to the present disclosure will be described.

[0107] Referring to FIG. 11, as elements constituting the display device 100, a cover window CW, a second plate PLT2, a vibration bracket 200, a vibration film 300, a connector 430, a source board SPCB, and a source film SF are shown.

[0108] Referring to FIGS. 11 and 12, six vibration films 300 are shown. Each vibration film 300 is referred to as a first vibration film 300a, a second vibration film 300b, a third vibration film 300c, a fourth vibration film 300d, a fifth vibration film 300e, and a sixth vibration film 300f. The number of vibration films 300 is an example, and the technical idea of the present disclosure is not limited thereto.

[0109] Referring to FIGS. 11 and 12, six connectors 430a to 430f are shown. Each connector 430 is referred to as a first connector 430a, a second connector 430b, a third connector 430c, a fourth connector 430d, a fifth connector 430e, and a sixth connector 430f.

[0110] The cover window CW is disposed at the outermost where the user's touch is input. The direction from the cover window CW toward the vibration film 300 is defined as the -z axis direction and the lower direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z axis direction and the upper direction.

[0111] Between the cover window CW and the second plate PLT2, as described with reference to FIG. 1, the display panel 110 and the first plate PLT1 may be disposed. For a detailed description of the display panel 110 and the first plate PLT1, reference is made to the description given with reference to FIG. 1 and the like. The display panel 110 and the source board SPCB are electrically connected to each other via the source film SF. For a detailed description of the source board SPCB and the source film SF, reference is made to the description given with reference to FIG. 1 and the like.

[0112] The second plate PLT2 is disposed below the cover window CW. The vibration bracket 200 is disposed below the second plate PLT2. The vibration film 300 is disposed below the vibration bracket 200. For the description of the vibration bracket 200 and the vibration film 300, reference is made to the description given with reference to FIGS. 6 to 8.

[0113] The vibration film 300 is connected to the connector 430. Each of the connectors 430a to 430f includes a first terminal 431a to 431f and a second terminal 432a to 432f. Specifically, each of the first to sixth vibration films 300a to 300f is connected to the connectors 430a to 430f via the first terminals 431a to 431f. Each of the connectors 430a to 430f is connected to the control board CPCB via the second terminals 432a to 432f.

[0114] Therefore, each of the connectors 430a to 430f may have the same number of first terminals 431a to 431f and second terminals 432a to 432f. The number of the first terminals 431a to 431f of each of the connectors 430a to 430f is one, and the number of the second terminals 432a to 432f is also one and the same as each other.

[0115] The connector 430 may incorporate wiring for controlling the vibration of the vibration film 300. The vibration film 300 may include a positive electrode, a negative electrode, and a piezoelectric ceramic therebetween. The vibration film 300 can vibrate with an intensity corresponding to the voltage difference applied to the positive electrode and the negative electrode. The connector 430 may include wiring for applying a voltage to the positive electrode and the negative electrode. Such a voltage may be applied from the control board CPCB. The first terminals 431a to 431f are terminals for applying a voltage to the vibration film 300. The second terminals 432a to 432f are terminals for applying a voltage from the control board CPCB.

[0116] As shown in FIGS. 11 and 12, each of the connectors 430a to 430f is connected to one of the vibration films 300a to 300f. Each of the connectors 430a to 430f includes one first terminal 431a to 431f and one second terminal 432a to 432f. Therefore, the number of the first terminals 431a to 431f is the same as the number of the second terminals 432a to 432f.

[0117] According to the present disclosure, six vibration films 300: 300a to 300f may be attached to one vibration bracket 200. One of the vibration films 300a to 300f may be connected to one of the connectors 430a to 430f. Each of the connectors 430a to 430f may be connected to one control board CPCB.

[0118] Therefore, the plurality of connectors 430a to 430f can overlap each other. For example, as shown in FIGS. 11 and 12, the first connector 430a and the second connector 430b overlap each other with reference to the x and y planes. Also, the fifth connector 430e and the sixth connector 430f overlap each other with reference to the x and y planes. By overlapping some of the plurality of connectors 430a to 430f with each other, the connection of the control board CPCB can be easily performed. If it is different from FIGS. 11 and 12, in order for the plurality of connectors 430a to 430f not to overlap each other, the first connector 430a and the sixth connector 430f would have to be attached to the side surface of the control board CPCB parallel to the y-axis direction. In this case, it is inevitable that the arrangement of the connection terminals of the control board CPCB becomes complicated.

[0119] FIG. 13 is a perspective view showing a display device according to the present disclosure.

[0120] Referring to FIG. 13, another embodiment of the vibration bracket according to the present disclosure will be described.

[0121] Referring to FIG. 13, as elements constituting the display device, a cover window CW, a second plate PLT2, a vibration bracket 200, a vibration film 300, a connector 400, a source board SPCB, and a source film SF are shown.

[0122] Referring to FIG. 13, two vibration brackets 200 are shown. Each vibration bracket 200 is referred to as a first vibration bracket 250 and a second vibration bracket 260. The number of vibration brackets 200 is an example, and the technical idea of the present disclosure is not limited thereto.

[0123] Referring to FIG. 13, six vibration films 300 are attached to the first vibration bracket 250. Each vibration film 300 is referred to as the first vibration film to the sixth vibration films 350a - 350f. Six vibration films 300 are attached to the second vibration bracket 260. Each vibration film 300 is referred to as the seventh vibration film to the twelfth vibration films 360a - 360f. The number of the vibration films 300 is an example and the technical idea of the present disclosure is not limited thereto.

[0124] Referring to FIG. 13, four connectors 400 are shown. Each connector 400 is referred to as the first connector 440, the second connector 450, the third connector 460, and the fourth connector 470. The first connector 440 and the second connector 450 are connected to the first vibration bracket 250. The third connector 460 and the fourth connector 470 are connected to the second vibration bracket 260. Each connector 400 includes a first terminal and a second terminal. The first connector 440 includes three first terminals 441 and one second terminal 442. The second connector 450 includes three first terminals 451 and one second terminal 452. The third connector 460 includes three first terminals 461 and one second terminal 462. The fourth connector 470 includes three first terminals 471 and one second terminal 472.

[0125] The cover window CW is disposed at the outermost where the user's touch is input. The direction from the cover window CW toward the vibration film 300 is defined as the -z axis direction and the lower direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z axis direction and the upper direction.

[0126] Between the cover window CW and the second plate PLT2, as described with reference to FIG. 1, the display panel 110 and the first plate PLT1 may be arranged. For the detailed description of the display panel 110 and the first plate PLT1, the description made with reference to FIG. 1 and the like is incorporated herein by reference. The display panel 110 and the source board SPCB are electrically connected to each other via the source film SF. For the detailed description of the source board SPCB and the source film SF, the description made with reference to FIG. 1 and the like is incorporated herein by reference.

[0127] The second plate PLT2 is disposed below the cover window CW. The vibration bracket 200 is disposed below the second plate PLT2. The vibration film 300 is disposed below the vibration bracket 200. For the description of the vibration bracket 200 and the vibration film 300, the description made with reference to FIGS. 6 to 8 is incorporated herein by reference.

[0128] The first vibration film 350a to the third vibration film 350c are connected to the first connector 440. The fourth vibration film 350d to the sixth vibration film 350f are connected to the second connector 450. The seventh vibration film 360a to the ninth vibration film 360c are connected to the third connector 460. The tenth vibration film 360d to the twelfth vibration film 360f are connected to the fourth connector 470.

[0129] The first connector 440 includes a first terminal 441 connected to the vibration film and a second terminal 442 connected to the control board CPCB. The second connector 450 includes a first terminal 451 connected to the vibration film and a second terminal 452 connected to the control board CPCB. The third connector 460 includes a first terminal 461 connected to the vibration film and a second terminal 462 connected to the control board CPCB. The fourth connector 470 includes a first terminal 471 connected to the vibration film and a second terminal 472 connected to the control board CPCB. The second terminals 442, 452, 462, 472 may be connected to one control board CPCB.

[0130] According to the present disclosure, a display device 100 includes two vibration brackets 250 and 260. Six vibration films 350a - 350f and 360a - 360f may be attached to each of the vibration brackets 250 and 260. Three vibration films 350a - 350c on one side may be commonly connected to one first connector 440. Three vibration films 350d - 350f on the other side may be commonly connected to one second connector 450. Three vibration films 360a - 360c on one side may be commonly connected to one third connector 460. Three vibration films 360d - 360f on the other side may be connected to one fourth connector 470. The four connectors 440 - 470 may be connected to one control board CPCB via the second terminals 442, 452, 462, and 472.

[0131] FIG. 14 is a diagram showing a vehicle on which the display device according to the present disclosure is mounted.

[0132] Referring to FIG. 14, the vehicle according to the present disclosure includes a cluster display 1410, a center fascia display 1420, and a passenger display 1430.

[0133] The cluster display 1410 can display information such as operation - related information of the vehicle, such as operation time, speed, fuel quantity, and engine speed, and vehicle state information to the driver.

[0134] The center fascia display 1420 can display information such as the vehicle's audio system, air - conditioning system, and navigation information to the driver.

[0135] The passenger display 1430 can display information such as multimedia video to the passengers.

[0136] The display device according to the present disclosure can be applied to the cluster display 1410, the center console display 1420, and the passenger seat display 1430. When the display device according to the present disclosure is applied to haptics, when a user performs a touch input, the user can experience a haptic reaction with an increased sense of depth through the finger in contact with the cover window. When the display device according to the present disclosure is applied to acoustics, when a user performs a touch input, the user can experience a sound enhanced in the depth direction.

[0137] According to the present disclosure, there is disclosed a display device including a cover window, a display panel disposed below the cover window, at least one plate disposed below the display panel, a vibration bracket attached to the lower part of the at least one plate, and a vibration film attached to the lower part of the vibration bracket, wherein the vibration bracket includes legs protruding upward.

[0138] The leg may include a first leg disposed on one side and a second leg disposed on the other side.

[0139] The vibration bracket may further include a plurality of bridges extending from the legs.

[0140] The vibration bracket may further include a horizontal portion to which the vibration film is attached.

[0141] A separation space may be formed between the horizontal portion and the at least one plate.

[0142] The separation space may further include a piezoelectric material disposed therein.

[0143] The horizontal portion may include a plurality of horizontal portions including a first horizontal portion and a second horizontal portion, and the vibration film may be attached to each of the plurality of horizontal portions.

[0144] The at least one plate includes a first plate disposed at a lower portion of the display panel and a second plate disposed at a lower portion of the first plate, and the second plate may be formed of a metallic material.

[0145] The second plate and the vibration bracket may be directly attached by an adhesive substance.

[0146] It may further include a connector for electrically connecting the vibration film and the control board.

[0147] The connector may include a first terminal connected to the vibration film and a second terminal connected to the control board.

[0148] The number of the first terminals may be more than the number of the second terminals.

[0149] The number of the first terminals may be the same as the number of the second terminals.

[0150] The connector includes a plurality of connectors, and some of the plurality of connectors may overlap each other.

[0151] The vibration bracket may include a plurality of brackets including a first bracket and a second bracket.

[0152] The examples of the present disclosure have been described above with reference to the attached drawings. The present disclosure is not necessarily limited to such embodiments. It can be variously modified without departing from the technical idea of the present disclosure. Therefore, it should be understood that the examples of the present disclosure are for the purpose of explanation, not for limiting technical matters. The protection scope of the present disclosure should be defined by the scope of the claims. Also, all technical ideas within the scope equivalent to the scope of the claims should be construed as being included in the technical idea of the present disclosure.

Explanation of Reference Numerals

[0153] CW: Cover Window 110: Display Panel PLT1: First Plate PLT2: Second Plate 200: Vibration Bracket 210: Horizontal Part 220: Leg 230: Bridge 300: Vibration Film 400: Connector CPCB: Control Board SPCB: Source Board SF: Source Film

Claims

1. A cover window, A display panel disposed below the cover window, At least one plate disposed below the display panel, A vibration bracket attached to the lower part of the at least one plate, A vibration film attached to the lower part of the vibration bracket, and includes, The vibration bracket includes legs protruding upward, a display device.

2. The legs include a first leg disposed on one side of the display device and a second leg disposed on the other side, the display device according to claim 1.

3. The vibration bracket further includes a plurality of bridges extending from the legs, the display device according to claim 2.

4. The vibration bracket further includes a horizontal portion to which the vibration film is attached, the display device according to claim 1.

5. A separation space is formed between the horizontal portion and the at least one plate, the display device according to claim 4.

6. The display device according to claim 5 further includes a piezoelectric material disposed in the separation space.

7. The horizontal portion includes a plurality of horizontal portions including a first horizontal portion and a second horizontal portion, The vibration film is attached to each of the plurality of horizontal portions, the display device according to claim 4.

8. The at least one plate includes a first plate disposed below the display panel and a second plate disposed below the first plate, The second plate is formed of a metallic material, the display device according to claim 1.

9. The second plate and the vibration bracket are directly attached by an adhesive substance, the display device according to claim 8.

10. The display device according to claim 1 further includes a connector for electrically connecting the vibration film and a control board.

11. The connector includes a first terminal connected to the vibration film and a second terminal connected to the control board, the display device according to claim 10.

12. The number of the first terminals is greater than the number of the second terminals, the display device according to claim 11.

13. The number of the first terminals is the same as the number of the second terminals, the display device according to claim 11.

14. The connector includes a plurality of connectors, and some of the plurality of connectors overlap each other, the display device according to claim 11.

15. The display device according to claim 1, wherein the vibration bracket includes a plurality of brackets including a first bracket and a second bracket.

16. The display device according to claim 1, wherein the vibration film includes an anode, a cathode, and a piezoelectric ceramic between the anode and the cathode.

17. The display device according to claim 1, wherein the vibration film includes a plurality of vibration films attached to one vibration bracket.

18. The display device according to claim 14, wherein the vibration film includes a plurality of vibration films commonly connected to one first connector among the plurality of connectors on one side of the display device, and a plurality of vibration films commonly connected to one second connector among the plurality of connectors on the other side of the display device.

19. The display device according to claim 18, wherein the first connector and the second connector are connected to one control board via a second terminal.

20. The display device according to claim 14, wherein the number of the connectors is the same as the number of the first terminals and the number of the second terminals.

21. The display device according to claim 15, wherein the vibration film includes a plurality of vibration films attached to the first bracket and a plurality of vibration films attached to the second bracket.

22. The display device according to claim 4, wherein the leg includes a first leg protruding upward from one side of the horizontal portion and a second leg protruding upward from the other side of the horizontal portion.

Images