Indication 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 can be mounted on a vehicle and includes a bracket that can intensify vibrations activated by touch in the depth direction. [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 and display equipment, and can be used as a screen for displaying images.

[0003] The display device may include an acoustic device. An 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 behind or below the display device, there is a problem that the sound quality may be degraded due to interference with surrounding structures, or the user's sense of immersion may be reduced.

[0004] In addition, the display device may apply a haptic characteristic that indicates whether or not a user has performed an operation by vibrating the display device in response to a user operation such as a touch input. To provide the haptic characteristic of the display device, vibration energy must be generated in response to an electrical signal. 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 form. The vibration generated by such a vibration device must be efficiently transmitted to the user. Summary of the Invention [Problem to be solved by the invention]

[0005] The present disclosure relates to a method for effectively transmitting vibrations of a vibration film included in a display device to a user, specifically, a method for effectively transmitting vibrations generated by the vibration film in a depth direction. [Means for solving the problem]

[0006] According to the present disclosure, a display device is disclosed that includes a cover window, a display panel arranged below the cover window, at least one plate arranged below the display panel, a vibration bracket attached to the bottom of the at least one plate, and a vibration film attached to the bottom of the vibration bracket, wherein the vibration bracket includes legs that protrude 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 horizontal direction, allowing the user to experience deep haptic responses and sounds.

[0008] According to the present disclosure, when vibrations generated by the vibrating film are transmitted to the second plate, the vibration intensity can be increased by the vibration bracket. The increased vibrations may be in the z-axis direction, which is the depth direction. The increased vibrations may be in the x-axis and y-axis directions, which are planar directions. When the vibrations are applied to haptics, the user can experience an increased touch response in the depth direction. When the vibrations are applied to audio, the user can experience an increased sound. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram illustrating a display device according to the present disclosure. [Figure 2] 1 is a conceptual diagram for explaining a display device 100 according to the present disclosure. [Figure 3] 1A and 1B are diagrams for illustrating an example of a structure in which a touch panel is incorporated into a display device according to the present disclosure and a subpixel structure. [Figure 4] 1 is a diagram illustrating a touch electrode structure for touch sensing based on mutual capacitance in a display device according to the present disclosure; [Figure 5] 1 is a diagram illustrating an example cross section of a portion of a display device according to the present disclosure. [Figure 6] 1 is a perspective view illustrating a display device according to the present disclosure. [Figure 7] 7 is an enlarged view of a portion A in the display device shown in FIG. 6. FIG. [Figure 8] 8 is a cross-sectional view showing a cross section of the BB' portion of the display device shown in FIG. 7. FIG. [Figure 9] 1 is a perspective view illustrating a display device according to the present disclosure. [Figure 10] 1 is a perspective view illustrating a display device according to the present disclosure. [Figure 11] 1 is a perspective view illustrating a display device according to the present disclosure. [Figure 12] 1 is a perspective view illustrating a display device according to the present disclosure. [Figure 13] 1 is a perspective view illustrating a display device according to the present disclosure. [Figure 14] 1 is a diagram showing a vehicle on which a display device according to the present disclosure is mounted; DETAILED DESCRIPTION OF THE INVENTION

[0010] The advantages and features of the present invention, as well as methods for achieving them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be embodied in various different forms. The present embodiments are provided solely to complete the disclosure of the present invention and to enable those skilled in the art to fully understand the scope of the invention. The present invention is defined solely by the scope of the claims.

[0011] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for describing the embodiments of the present invention are illustrative only and do not limit the present invention to the illustrated matters. The same reference symbols refer to the same components throughout the specification. Furthermore, when describing the present invention, if a detailed description of related prior art is deemed to unnecessarily obscure the gist of the present invention, such a detailed description will be omitted. When using terms such as "include," "have," and "includes" in this specification, other parts may be added unless "only" is used. When a component is expressed in the singular, the plural may also be included unless otherwise specified.

[0012] When interpreting elements, even if there is no explicit statement otherwise, interpretation should be made with a margin of error.

[0013] When describing a positional relationship, for example, when the positional relationship between two parts is described as "above," "on top," "below," or "next to," one or more other parts may be located between the two parts, unless "immediately" or "directly" is used.

[0014] When an element or layer is referred to as "on" another element or layer, this includes both being directly on the other element or having other layers or elements interposed therebetween.

[0015] Although terms such as "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, a first component referred to below may be a second component within the technical concept of the present invention.

[0016] Like reference numbers refer to like elements throughout the specification.

[0017] The size and thickness of each component 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 components shown in the drawings.

[0018] The features of the various embodiments of the present invention may be partially or fully combined or combined with each other, and various technical interlocking and driving mechanisms are possible, as will be fully understood by those skilled in the art, and each embodiment may be implemented independently of the others, or may be implemented together in association with each other.

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in

[0020] The term "display device" in this disclosure may include display devices in a narrower sense, such as a liquid crystal module (LCM), an organic light emitting module (OLED module), or a quantum dot module, which include a display panel and a driver for driving the display panel. It may also include set electronic devices or set apparatuses, such as equipment displays including laptops, televisions, computer monitors, automotive displays, or other forms of vehicles, which are complete or final products including an LCM, OLED module, or QD module, and mobile electronic devices such as smartphones or electronic pads.

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

[0022] In some cases, an LCM, OLED module, or QD module composed of a display panel and a driver may be referred to as a "display device" in the narrow sense, and a completed electronic device including an LCM, OLED module, or QD module may be referred to as a "set device." For example, a display device in the narrow sense may include a liquid crystal (LCD), organic light emitting diode (OLED), or quantum dot display panel and a source PCB that is a controller for driving the display panel, and the set device may further include a set PCB that is a set controller electrically connected to the source PCB and controls the entire set device.

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

[0024] For example, if the display panel is an organic electroluminescent (OLED) display panel, it may include a plurality of gate lines and data lines, and pixels formed at the intersections of the gate lines and the data lines. It may also include an array including thin film transistors (TFTs) that selectively apply voltage to each pixel, an organic light emitting device (OLED) layer on the array, and an encapsulation substrate or encapsulation layer disposed on the array to cover the organic light emitting device layer. The encapsulation layer protects the TFTs and the organic light emitting device layer from external impact and prevents moisture and oxygen from penetrating into the organic light emitting device layer. The layer formed on the array may also include an inorganic light emitting layer, such as a nano-sized material layer or quantum dots.

[0025] The display panel in this disclosure illustrates an exemplary organic electroluminescent (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] 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 also 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 also includes a control board CPCB electrically connected to the vibration film 300 and the source board SPCB.

[0028] In describing this embodiment, the downward direction refers to the −z-axis direction from the cover window CW toward the control board CPCB, and the upward direction refers to the opposite direction, the z-axis direction from the control board CPCB toward the cover window CW.

[0029] A user's touch operation is performed on the cover window CW. Vibrations corresponding to the touch are generated from the vibrating film 300. The generated vibrations travel from the vibrating film 300 toward the cover window CW. Therefore, in terms of the direction in which the vibrations travel, the z-axis direction or the upward direction may also be called the depth direction.

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

[0031] The display panel 110 is disposed below the cover window CW. The display panel 110 and the cover window CW may be bonded to each other using an adhesive such as OCA, OCR, or PSA. The display panel 110 may include elements such as a polarizer, a panel layer, and a touch electrode. In particular, when the display panel 110 is applied to a vehicle, it may include elements 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 has been used in which the driver's seat cluster, the center console display, and the passenger seat multimedia display are integrally formed. The viewing angle control film can prevent images displayed on the passenger seat multimedia display from being reflected in the driver's field of vision.

[0032] The first plate PLT1 is disposed under the display panel 110. The first plate PLT1 may also be called a back plate. The first plate PLT1 may function as a rigid structure to reinforce the rigidity of the display panel 110. The first plate PLT1 may be made of a thin plastic film.

[0033] The second plate PLT2 is disposed below the first plate PLT1. The second plate PLT2 may be made of a metal material. The second plate PLT2 may serve to reinforce the rigidity of the display panel 110. The second plate PLT2 may also 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 made of a metal material such as aluminum or magnesium, or a plastic material with excellent thermal conductivity.

[0034] The vibrating bracket 200 is disposed below the second plate PLT2 or attached to the lower portion of the second plate PLT2. The vibrating bracket 200 can be attached to the second plate PLT2 using a predetermined adhesive material. The adhesive material (not shown) may be made of a material such as adhesive tape, OCA, PSA, or OCR. The vibrating bracket 200 and the second plate PLT2 may be directly attached to each other using the adhesive material. The vibrating bracket 200 may be made of plastic or metal. The vibrating bracket 200 serves to transmit vibrations generated from the vibrating 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. A user views the display device 100 from the z-axis direction and inputs a touch on the cover window CW from the z-axis direction toward the -z-axis direction. 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 vibrations generated by the vibrating film 300 are transmitted to the second plate PLT2, the vibrations can be strengthened by the vibrating bracket 200. The strengthened vibrations may be in the z-axis direction, which is the depth direction. The strengthened vibrations may be in the x-axis and y-axis directions, which are planar directions. When vibrations are applied to haptics, the user can experience an enhanced touch response in the depth direction. When vibrations are applied to audio, the user can experience an enhanced sound.

[0036] The vibration film 300 is disposed under the vibration bracket 200. The vibration film 300 may be configured as a thin film. For example, the vibration film 300 may include a positive electrode and a negative electrode for applying an electrical signal, and may include a piezoelectric ceramic disposed between the positive electrode and the negative electrode to generate vibration energy. The vibration film 300 may be referred to as a sound generating module, a sound generating device, a film actuator, a film-type composite actuator, a film speaker, or the like. The vibration generated by the vibration film 300 can be transmitted using the second plate PLT2 as a diaphragm. The vibration film 300 may be attached to the vibration bracket 200 with an adhesive material. To this end, the vibration bracket 200 may include a horizontal portion, which will be described later. 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 a source film SF. The source film SF may be in the form of a chip-on-film, or may be in the form of a flexible printed circuit board incorporating an IC called a source driver or a data driver.

[0038] The control board CPCB may be disposed below the vibration film 300. The control board CPCB may be a rigid printed circuit board on which various ICs such as a timing controller, a power management circuit, and a touch driving circuit are mounted. The control board CPCB supplies a signal for driving the vibration film 300 to the vibration film 300, and for this purpose, a connector may be used to electrically connect the control board CPCB and the vibration film 300. The connector will be described in detail later. The control board CPCB may be electrically connected to the source board SPCB via a connecting member. The connecting member may be, for example, a flexible printed circuit or a flexible flat cable. In some cases, the source board SPCB and the control board CPCB may be integrated into one circuit board.

[0039] 1 can be applied to a television, a monitor, a PC, or a tablet. The display device 100 can also be applied to a vehicle. For example, the display device 100 can be applied to a cluster display, a center console display, a passenger seat display, a rear seat display, or the like 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, a display device 100 according to the present disclosure includes a display panel 110, a gate driver 120, a data driver 130, a timing controller 140, a touch driver 150, and a power driver 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 lines GL and the data lines DL intersect. A plurality of touch electrodes may be arranged or incorporated in the display panel 110. A plurality of touch lines TL are arranged in the display panel 110 to electrically connect the touch electrodes to the touch driver 150.

[0043] The gate driver 120 outputs a signal to control a transistor of the sub-pixel SP. The gate driver 120 receives a gate control signal GCS from the timing controller 140. When a data voltage corresponding to image data is supplied to the sub-pixel SP from the data driver 130, an image corresponding to the gray level of the image data is output to the screen under the control of the gate driver 120. The gate driver 120 may be provided on one side or both sides of the display panel 110 in the form of one or more integrated circuits (IC). The gate driver 120 may be provided in the form of a GIP directly incorporated in the non-display area of ​​the display panel 110.

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

[0045] The timing controller 140 supplies control signals to the gate driver 120 and the data driver 130 to control their operations. The timing controller 140 receives various timing signals, including a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, and a clock signal, along with 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 130 and the gate driver 120, respectively. For example, signals output by the timing controller 140 to control the gate driver 120 include a gate start pulse, a gate shift clock, a gate output enable signal, etc. For example, signals output by the timing controller 140 to control the data driver 130 include a source start pulse, a source sampling clock, a source output enable signal, etc.

[0046] The touch driver 150 senses a user's touch input to the display device 100. The touch driver 150 may sense the presence or absence and position of a touch based on a difference in capacitance between electrodes formed on the display panel 110. The touch driver 150 may generate a touch sensing output signal corresponding to the presence or absence and position of a touch.

[0047] The power driver 160 adjusts a DC input voltage supplied from an external system to generate a power supply required for the display device 100. The power driver 160 may generate converter voltages required to drive various ICs, high and low voltages supplied to the sub-pixels, gate high and low voltages supplied to the gate driver 120, gamma voltages supplied to the data driver 130, etc.

[0048] FIG. 3 is a diagram for explaining an example of a structure in which a touch panel is incorporated into a display device according to the present disclosure and a subpixel structure.

[0049] 3 shows a display area AA of a display panel in a display device according to the present disclosure. In the display area AA, a plurality of sub-pixels SP are arranged on a 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 transferring a data voltage Vdata to a first node N1 of the first transistor T1, and a storage capacitor Cst for maintaining a constant voltage during one frame.

[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 may be 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 that drives 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 material. In this case, the light-emitting element ED may be an organic light-emitting diode.

[0052] The second transistor T2 may be electrically connected between the first node N1 of the first transistor T1 and the data line DL and may be turned on or off by a scan signal SCAN applied via the gate line GL. 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 transferred 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 subpixel 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 one or more capacitors.

[0055] The storage capacitor Cst may be an external capacitor intentionally designed outside the first transistor T1, rather than a parasitic capacitor that may exist between the first node N1 and the second node N2 of 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] Meanwhile, the display panel 110 is provided with circuit elements such as a light-emitting element ED, two or more transistors T1 and T2, and one or more capacitors Cst. Since these circuit elements are vulnerable to external moisture and oxygen, an encapsulation layer ENCAP may be provided 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, the touch screen panel TSP may be formed on the encapsulation layer ENCAP and incorporated into the display panel 110. That is, in the display device 100, the display panel 110 may be configured by disposing a plurality of touch electrodes TE constituting the touch screen panel TSP on the encapsulation layer ENCAP.

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

[0058] In a touch sensing method based on mutual capacitance, a plurality of touch electrodes TE are classified into touch driving electrodes to which a touch driving signal is applied via a touch driving line and touch sensing electrodes to which a touch sensing signal is sensed via a touch sensing line and which form capacitance with the touch driving electrodes. In this case, the touch driving lines and the touch sensing lines are collectively referred to as touch lines, and the touch driving signals and the touch sensing signals are collectively referred to as touch signals. In such a touch sensing method based on mutual capacitance, the presence or absence of a touch and touch coordinates are detected based on a change in mutual capacitance generated between the touch driving electrodes and the touch sensing electrodes depending on the presence or absence of a pointer such as a finger or a pen.

[0059] In the touch sensing method based on self-capacitance, each touch electrode TE functions as both a touch driving electrode and a touch sensing electrode. That is, a touch driving signal is applied to the touch electrode TE through one touch line, and a touch sensing signal transmitted from the touch electrode TE to which the touch driving signal is applied is received through the same touch line. As a result, in the touch sensing method based on self-capacitance, there is no distinction between the touch driving electrode and the touch sensing electrode, or between the touch driving line and the touch sensing line. In such a touch sensing method based on self-capacitance, the presence or absence of a touch and the touch coordinates are detected based on a change in capacitance occurring between a pointer such as a finger or a pen and the touch electrode TE.

[0060] In this way, the touch display device 100 may sense a touch using a touch sensing method based on mutual capacitance or a touch sensing method based on self-capacitance.

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

[0062] 4, the touch electrode structure of the display device according to the present disclosure may include a plurality of X-touch electrode lines X-TELs and a plurality of Y-touch electrode lines Y-TELs. Here, the plurality of X-touch electrode lines X-TELs and the plurality of Y-touch electrode lines Y-TELs are located on an encapsulation layer ENCAP. Each of the plurality of X-touch electrode lines X-TELs may be arranged in a first direction, and each of the plurality of Y-touch electrode lines Y-TELs 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 included in the plurality of touch electrodes TE and are electrodes with distinct roles (functions). 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 multiple touch lines TL may include one or more X-touch lines X-TL connected to each of the multiple X-touch electrode lines X-TEL, and one or more Y-touch lines Y-TL connected to each of the multiple Y-touch electrode lines Y-TEL.

[0065] FIG. 5 is a diagram illustrating an example cross section of a portion of a display device according to the present disclosure.

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

[0067] The gate electrode GE and the semiconductor layer SEMI overlap with each other with a gate insulating film GI sandwiched therebetween. The source electrode SE is formed on the 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 an anode electrode, a second electrode E2 corresponding to a cathode electrode, and an emitting layer EL disposed therebetween. The first electrode E1 is electrically connected to the source electrode SE of the first transistor T1, which is exposed through a contact hole that penetrates the planarization film PLN. The emitting layer EL is formed on the first electrode E1 in a light-emitting region defined by the bank BANK. The second electrode E2 is formed to face the first electrode E1 with the emitting layer EL interposed therebetween.

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

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

[0071] A touch buffer layer T-BUF may be disposed on the encapsulation layer ENCAP. The touch buffer layer T-BUF may be located between the touch sensor metal including the touch electrodes (X-TE and) Y-TE and the touch electrode connecting lines X-CL and 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. This reduces or prevents parasitic capacitance from being formed between the touch sensor metal and the second electrode E2 of the light-emitting element ED, thereby preventing a decrease in touch sensitivity due to the parasitic capacitance.

[0072] X-touch electrode lines X-TEL and Y-touch electrode lines Y-TEL are disposed on the touch buffer layer T-BUF, and the X-touch electrode lines X-TEL and the Y-touch electrode lines Y-TEL may be disposed to cross each other. The Y-touch electrode lines Y-TEL may include a plurality of Y-touch electrode connection lines Y-CL that electrically connect the plurality of Y-touch electrodes Y-TE. In this case, the plurality of Y-touch electrodes (Y-TE) and the plurality of Y-touch electrode connection lines Y-CL may be located on different layers with an interlayer dielectric ILD sandwiched therebetween.

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

[0074] The Y-touch line Y-TL may be electrically connected to the Y-touch electrode Y-TE through a touch line contact hole or may be integrated with the Y-touch electrode Y-TE. The Y-touch line Y-TL may extend to the non-display area NAA and be electrically connected to the Y-touch pad Y-TP through the top and side surfaces of the encapsulation layer ENCAP and the top and side surfaces of the dam DAM. As a result, the Y-touch line Y-TL may be electrically connected to the touch driver 150 through the Y-touch pad Y-TP. In the non-display area NAA, a Y-touch bridge wiring Y-BL connected to the Y-touch line Y-TL through a contact hole CH may be disposed below the Y-touch line Y-TL. The Y-touch line Y-TL and the Y-touch bridge wiring Y-BL are electrically connected to each other through at least one contact hole CH formed at regular intervals, and therefore can transmit the same touch driving signal or touch sensing signal.

[0075] Meanwhile, a touch protective film PAC may be disposed on the X-touch electrode (X-TE) and the Y-touch electrode (Y-TE). The touch protective film PAC may extend to the front or rear 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 in the display device shown in FIG.

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

[0079] Referring to FIG. 6, the elements that make up the display device 100 include a cover window CW, a second plate PLT2, a vibration bracket 200, and a vibration film 300.

[0080] The cover window CW is disposed at the outermost position where a 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 downward direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z-axis direction and the upward direction.

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

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

[0083] The vibration bracket 200 is disposed under the second plate PLT2. The vibration bracket 200 can be attached to the second plate PLT2 using a predetermined adhesive. 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 portion 210 refers to a portion of the vibrating bracket 200 that is horizontal with respect to a plane defined by the x-axis and y-axis. The horizontal portions 210 may be square plates with the same length and width, or rectangular plates with different length and width dimensions. A vibration film 300 may be attached to the lower portion of the horizontal portion 210. A predetermined adhesive may be used to attach the vibration film 300 to the horizontal portion 210. As shown in FIG. 6, one vibrating bracket 200 may include six horizontal portions 210. The number six is ​​merely an example, and the technical spirit of the present disclosure is not limited to this number. As shown in the enlarged view of FIG. 7, the respective horizontal portions 210 may be referred to as a first horizontal portion 210a, a second horizontal portion 210b, and a third horizontal portion 210c. A vibration film 300 may be attached to each of the horizontal portions.

[0085] The legs 220 refer to portions that protrude upward in the Z-axis direction on one and the other sides of the horizontal portion 210. The first leg 220a is a portion that protrudes upward on one side of the horizontal portion, and the second leg 220b is a portion that protrudes upward on the other side of the horizontal portion. The legs 220 may have a shape that extends along the y-axis direction of the horizontal portion 210. Thus, one horizontal portion 210 includes two legs 220.

[0086] Vibration is generated by the vibrating film 300. The legs 220 can enhance the vibration in the upward and depth directions, i.e., the z-axis direction. Specifically, the second plate PLT2 is located in the upward direction, i.e., the protruding direction of the legs 220. As a result, the vibration of the second plate PLT2 is enhanced in the upward direction. The display panel and cover window are located above the second plate PLT2. A user performs a touch input on the cover window. When the display device according to the present disclosure is applied to haptics, a user can experience a haptic response with an enhanced sense of depth through a finger touching the cover window when performing a touch input. When the display device according to the present disclosure is applied to audio, a user can experience a sound that is enhanced in the depth direction when performing a touch input.

[0087] Meanwhile, a gap (GAP) is formed between the vibration bracket 200 and the second plate PLT2 by the leg 220. The gap may be empty and filled with air. In some cases, the gap may be filled with a material that enhances vibration. For example, the vibration-enhancing material may be referred to as a piezoelectric material. The piezoelectric material may be one or more of PVDF (polyvinylidene fluoride), P(VDF-TrFE) (polyvinylidene fluoride-co-trifluoroethylene), a relaxed ferroelectric polymer, P(VDF-TrFe-CFE), P(VDF-TrFE-CTFE), a PVDF polymer doped with carbon nanotubes (CNTs), or polybis(trifluoroethoxy)phosphazene, but is not limited thereto. For example, the piezoelectric material may be a polymer material having a certain level of optical transparency and piezoelectric properties.

[0088] The 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. When the gap GAP is 2 mm, optimal vibration performance can be achieved.

[0089] The bridge 230 has a shape that extends between adjacent legs 220. As shown in FIG. 7, the third leg 220c is located on the other side of the first horizontal portion 210a. The 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 merely an example and does not limit the technical concept of the present disclosure.

[0090] Vibration is generated by the vibration film 300. The bridge 230 can produce the effect of strengthening the vibration in a planar direction defined as the x-axis and y-axis directions. Specifically, the bridge 230 has a shape that extends in the planar direction. This strengthens the vibration in the planar direction. The vibration generated when the user inputs a touch on the cover window can be strengthened in the planar 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] 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, elements constituting the display device 100 include 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.

[0095] 9 and 10, six vibration films 300 are shown. The vibration films 300 are 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 merely an example, and the technical idea of ​​the present disclosure is not limited thereto.

[0096] 9 and 10, there are shown two connectors 400. The connectors 400 are referred to as a first connector 410 and a second connector 420, respectively.

[0097] The cover window CW is disposed at the outermost position where a 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 downward direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z-axis direction and the upward direction.

[0098] The display panel 110 and the first plate PLT1 may be disposed between the cover window CW and the second plate PLT2, as described with reference to Fig. 1. For a detailed description of the display panel 110 and the first plate PLT1, please refer to the description with reference to Fig. 1 etc. 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, please refer to the description with reference to Fig. 1 etc.

[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. The explanations for the vibration bracket 200 and the vibration film 300 are given with reference to FIGS. 6 to 8.

[0100] The vibration film 300 is connected to a 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, and 300c are connected to the first connector 410, and the fourth to sixth vibration films 300d, 300e, and 300f are connected to the second connector 420.

[0101] Each connector 410, 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 connector 410, 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, 421 are terminals for applying a voltage to the vibration film 300. The second terminals 412, 422 are terminals for applying a voltage from the control board CPCB.

[0102] Each connector 410, 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 first terminals 411, 421 is three, and the number of second terminals 412, 422 is one. Therefore, the number of first terminals 411, 421 may be greater than the number of second terminals 412, 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 terminals 421 are 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 second terminals 412, 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] 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, elements constituting the display device 100 include 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.

[0108] 11 and 12, six vibration films 300 are shown. The vibration films 300 are 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 merely an example, and the technical idea of ​​the present disclosure is not limited thereto.

[0109] 11 and 12, six connectors 430a to 430f are shown. The connectors 430 are 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 position where a 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 downward direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z-axis direction and the upward direction.

[0111] The display panel 110 and the first plate PLT1 may be disposed between the cover window CW and the second plate PLT2, as described with reference to Fig. 1. For a detailed description of the display panel 110 and the first plate PLT1, please refer to the description with reference to Fig. 1 etc. 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, please refer to the description with reference to Fig. 1 etc.

[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. The explanations for the vibration bracket 200 and the vibration film 300 are given with reference to FIGS. 6 to 8.

[0113] The vibration film 300 is connected to connectors 430. The connectors 430a to 430f each include a first terminal 431a to 431f and a second terminal 432a to 432f. Specifically, the first to sixth vibration films 300a to 300f are connected to the connectors 430a to 430f via the first terminals 431a to 431f. The connectors 430a to 430f are 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. Each of the connectors 430a to 430f has one first terminal 431a to 431f and one second terminal 432a to 432f, which are the same number 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] 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 vibration film 300a to 300f may be connected to one connector 430a to 430f. Each connector 430a to 430f may be connected to one control board CPCB.

[0118] Therefore, the multiple connectors 430a to 430f may overlap each other. For example, as shown in FIGS. 11 and 12, the first connector 430a and the second connector 430b overlap each other based on the x- and y-planes. Also, the fifth connector 430e and the sixth connector 430f overlap each other based on the x- and y-planes. The overlapping of some of the multiple connectors 430a to 430f facilitates connection of the control board CPCB. If the arrangement differs from that shown in FIGS. 11 and 12, in order to prevent the multiple connectors 430a to 430f from overlapping each other, the first connector 430a and the sixth connector 430f would have to be attached to the side of the control board CPCB that is parallel to the y-axis direction. In this case, the arrangement of the connection terminals of the control board CPCB would inevitably become 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 a vibration bracket according to the present disclosure will be described.

[0121] Referring to FIG. 13, the elements constituting the display device are 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.

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

[0123] 13, six vibrating films 300 are attached to the first vibrating bracket 250. The respective vibrating films 300 are referred to as first to sixth vibrating films 350a to 350f. Six vibrating films 300 are attached to the second vibrating bracket 260. The respective vibrating films 300 are referred to as seventh to twelfth vibrating films 360a to 360f. The number of vibrating films 300 is merely an example, and the technical concept of the present disclosure is not limited thereto.

[0124] Referring to FIG. 13 , four connectors 400 are shown. The connectors 400 are referred to as a first connector 440, a second connector 450, a third connector 460, and a 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 position where a 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 downward direction. Conversely, the direction from the vibration film 300 toward the cover window CW is defined as the z-axis direction and the upward direction.

[0126] The display panel 110 and the first plate PLT1 may be disposed between the cover window CW and the second plate PLT2, as described with reference to Fig. 1. For a detailed description of the display panel 110 and the first plate PLT1, please refer to the description with reference to Fig. 1 etc. 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, please refer to the description with reference to Fig. 1 etc.

[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. The explanations for the vibration bracket 200 and the vibration film 300 are given with reference to FIGS. 6 to 8.

[0128] The first vibrating film 350a to the third vibrating film 350c are connected to the first connector 440. The fourth vibrating film 350d to the sixth vibrating film 350f are connected to the second connector 450. The seventh vibrating film 360a to the ninth vibrating film 360c are connected to the third connector 460. The tenth vibrating film 360d to the twelfth vibrating 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, and 472 may be connected to a single control board CPCB.

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

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

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

[0133] The cluster display 1410 can display information to the driver, such as vehicle operation time, speed, fuel amount, engine RPM, and other driving-related information and vehicle status information.

[0134] The center console display 1420 can display information to the driver about the vehicle's audio system, climate control system, navigation information, and the like.

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

[0136] The display device according to the present disclosure can be applied to a cluster display 1410, a center console display 1420, and a passenger seat display 1430. When the display device according to the present disclosure is applied to haptics, a user can experience a haptic response with an enhanced sense of depth when touching a cover window with a finger. When the display device according to the present disclosure is applied to audio, a user can experience a sound that is enhanced in the depth direction when touching a window with a finger.

[0137] According to the present disclosure, a display device is disclosed that includes a cover window, a display panel arranged below the cover window, at least one plate arranged below the display panel, a vibration bracket attached to the bottom of the at least one plate, and a vibration film attached to the bottom of the vibration bracket, wherein the vibration bracket includes legs that protrude upward.

[0138] The legs 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 device may further include a piezoelectric material disposed within the separated space.

[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 may include a first plate disposed below the display panel and a second plate disposed below the first plate, and the second plate may be made of a metal material.

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

[0146] The device may further include a connector that electrically connects 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 greater 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 may include 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] Examples of the present disclosure have been described above with reference to the accompanying drawings. The present disclosure is not necessarily limited to these embodiments. Various modifications are possible within the scope of the technical concept of the present disclosure. Therefore, it should be understood that the examples of the present disclosure are intended to illustrate, not limit, technical matters. The scope of protection of the present disclosure should be defined by the claims. Furthermore, all technical concepts within the scope equivalent to the claims should be interpreted as being included in the technical concept of the present disclosure. [Explanation of symbols]

[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. Cover window and a display panel disposed below the cover window; At least one plate disposed under the display panel; a vibration bracket attached to a lower portion of the at least one plate; a vibration film attached to a lower portion of the vibration bracket, The vibration bracket includes a leg protruding upward, The legs include a first leg disposed on one side of the display device and a second leg disposed on the other side, The vibration bracket further includes a plurality of bridges extending from the legs.

2. The display device of claim 1 , wherein the vibration bracket further comprises a horizontal portion to which the vibration film is attached.

3. The display device of claim 2 , wherein a separation space is formed between the horizontal portion and the at least one plate.

4. The display device of claim 3 further comprising a piezoelectric material disposed within the separated space.

5. the horizontal portion includes a plurality of horizontal portions including a first horizontal portion and a second horizontal portion; The display device according to claim 2 , wherein the vibration film is attached to each of the plurality of horizontal portions.

6. the at least one plate includes a first plate disposed below the display panel and a second plate disposed below the first plate; The display device according to claim 1 , wherein the second plate is made of a metal material.

7. The display device of claim 6 , wherein the second plate and the vibration bracket are directly attached by an adhesive material.

8. The display device according to claim 1 , further comprising a connector electrically connecting the vibration film and a control board.

9. The display device according to claim 8 , wherein the connector includes a first terminal connected to the vibration film and a second terminal connected to the control board.

10. The display device according to claim 9 , wherein the number of the first terminals is greater than the number of the second terminals.

11. The display device of claim 9 , wherein the number of the first terminals is the same as the number of the second terminals.

12. The display device according to claim 9 , wherein the connector includes a plurality of connectors, some of which overlap each other.

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

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

15. The display device according to claim 1 , wherein the vibration film comprises a plurality of vibration films attached to a single vibration bracket.

16. 13. The display device of claim 12, wherein the vibration film includes a plurality of vibration films on one side of the display device that are commonly connected to a first connector of the plurality of connectors, and a plurality of vibration films on the other side of the display device that are commonly connected to a second connector of the plurality of connectors.

17. The display device according to claim 16 , wherein the first connector and the second connector are connected to a single control board via the second terminal.

18. The display device according to claim 12 , wherein the number of the connectors is the same as the number of the first terminals and the number of the second terminals.

19. The display device according to claim 13 , 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.

20. The display device of claim 2 , wherein the legs include 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