Panel bottom member and display device including the same

Abstract

Panel bottom assemblies are disclosed. A panel bottom assembly includes a light barrier having a first recessed pattern formed on a top surface thereof, a vibration acoustic device disposed below the light barrier and coupled to the light barrier, a cushion disposed below the light barrier, and a joint disposed between the light barrier and the vibration acoustic device, the joint having a second recessed pattern formed on a top surface thereof, the second recessed pattern being different from the first recessed pattern.

Description

[0001] Cross-reference of related applications

[0002] This application claims the benefit and priority of Korean Patent Application No. 10-2018-0074068, filed on June 27, 2018, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to display devices, and more specifically, to a panel bottom member and a display device including the panel bottom member. Background Technology

[0004] Electronic devices such as smartphones, digital cameras, laptop computers, navigation devices, and smart televisions (TVs) may include display devices for displaying images to a user. Display devices typically include a display panel for generating and displaying images and a panel bottom member disposed beneath the display panel. The panel bottom member may include various functional sheets for protecting the display panel from heat and external impacts.

[0005] However, current display devices are typically only equipped with the function of displaying images. Therefore, in order to provide sound, a separate speaker is needed for the electronic device. Summary of the Invention

[0006] The bottom panel assembly includes a light blocking element, a vibratory acoustic device, a buffer, and a connector, wherein the light blocking element has a first recessed pattern formed on its top surface; the vibratory acoustic device is disposed below the light blocking element and connected to the light blocking element; the buffer is disposed below the light blocking element; the connector is disposed between the light blocking element and the vibratory acoustic device, and the connector has a second recessed pattern formed on its top surface, wherein the second recessed pattern is different from the first recessed pattern.

[0007] The bottom panel assembly includes a light blocking element, a vibrating acoustic device, and a buffer element. The light blocking element has a top surface on which a first recessed pattern is formed and a bottom surface on which a second recessed pattern is formed. The vibrating acoustic device is disposed below the light blocking element and connected to the light blocking element. The buffer element is disposed below the light blocking element, and a second air channel is formed between the light blocking element and the vibrating acoustic device by the second recessed pattern. The second air channel is different from the first air channel formed by the first recessed pattern.

[0008] The display device includes a display panel and a panel bottom assembly disposed below the display panel. The panel bottom assembly includes a light blocking member, a vibrating acoustic device, a buffer member, and a connector, wherein the light blocking member has a top surface on which a first recessed pattern is formed; the vibrating acoustic device is disposed below the light blocking member and connected to the light blocking member; the buffer member is disposed below the light blocking member; and the connector is disposed between the light blocking member and the vibrating acoustic device, and the connector has a top surface on which a second recessed pattern is formed, wherein the second recessed pattern is different from the first recessed pattern. Attached Figure Description

[0009] A more complete understanding of this disclosure and its many accompanying aspects will be readily obtained as they become better understood by referring to the following detailed description in conjunction with the accompanying drawings, in which:

[0010] Figure 1 This is a perspective view showing a display device according to an exemplary embodiment of the present disclosure;

[0011] Figure 2 It is shown Figure 1 An exploded perspective view of the display device;

[0012] Figure 3 It is along Figure 1 A sectional view taken by line A-A';

[0013] Figure 4 It is shown that it includes Figure 1 A schematic diagram of the vibratory acoustic device in the display device;

[0014] Figure 5 It is shown Figure 3 An enlarged sectional view of part Q1;

[0015] Figure 6 It is shown that it includes Figure 1 A plan view of the connecting components and bottom connecting layer in the display device;

[0016] Figure 7 This is a cross-sectional view showing an exemplary bottom component of the panel;

[0017] Figures 8A to 8C Yes, it can be included in Figure 7 A perspective view of various exemplary joining components in the bottom component of the panel;

[0018] Figures 9 to 11 This is a cross-sectional view showing an exemplary bottom component of the panel;

[0019] Figure 12 It is shown that it includes Figure 11 A perspective view of an exemplary joining member in the bottom component of the panel;

[0020] Figure 13 This is a cross-sectional view showing an exemplary bottom component of the panel;

[0021] Figure 14 and Figure 15 This is a cross-sectional view showing an exemplary bottom component of the panel;

[0022] Figure 16 This is a cross-sectional view of a display device according to an exemplary embodiment of the present disclosure;

[0023] Figure 17 It is shown Figure 16 Enlarged sectional view of part of Q1; and

[0024] Figure 18 This is a cross-sectional view showing an exemplary panel bottom component. Detailed Implementation

[0025] In describing exemplary embodiments of the present disclosure as illustrated in the accompanying drawings, specific terminology has been used for clarity. However, the present disclosure is not intended to be limited to the specific terminology chosen so far, and it should be understood that each particular element includes all technical equivalents that operate in a similar manner.

[0026] However, the present invention is not limited to the embodiments disclosed below, but can be implemented in many other forms. The description, including detailed structures and elements, is provided to assist those skilled in the art in fully understanding the invention.

[0027] If an element is described as being related to another element, such as being “on” or “located” on a layer or a different layer, this includes both cases where the element is directly located on another element or layer and cases where the element is located on another element via another layer or yet another element.

[0028] In the description of this invention, the same reference numerals may be used to denote the same elements or corresponding elements in the various figures.

[0029] Figure 1 This is a perspective view showing a display device according to an exemplary embodiment of the present disclosure. Figure 2 It is shown Figure 1 An exploded perspective view of the display device. Figure 3 It is along Figure 1 A sectional view taken by line A-A'. Figure 4 It is shown that it includes Figure 1 A schematic diagram of the vibratory acoustic device in the display device. Figure 5 It is shown Figure 3 An enlarged sectional view of part Q1. Figure 6 It is shown that it includes Figure 1A plan view of the connecting components and bottom connecting layer in the display device.

[0030] refer to Figures 1 to 6 The display device 10 can display images. The display device 10 can be a mobile terminal, such as a tablet computer, smartphone, personal digital assistant (PDA), portable multimedia player (PMP), game console, or wearable device such as a watch-type electronic device, but this disclosure is not limited thereto. For example, the display device 10 can be a large-sized electronic device, such as a television (TV) or an outdoor billboard, or the display device 10 can be a medium-sized or small-sized electronic device, such as a personal computer (PC) monitor, laptop computer, car navigation system, or digital camera.

[0031] The display device 10 may have a generally rectangular shape in a plan view. The display device 10 may include two long sides (e.g., a first long side 10s11 and a second long side 10s12) and two short sides (e.g., a first short side 10s21 and a second short side 10s22). Figure 1 As shown, the corners where the two long sides and two short sides of the display device 10 intersect can be right angles or rounded. However, the planar shape of the display device 10 is not specifically limited, and the display device 10 can be formed into various other shapes such as a circle.

[0032] The display device 10 may include a display panel 100 and a bottom panel member 20, and the bottom panel member 20 may include a vibratory acoustic device 400 and a buffer member 520. The display device 10 may also include a functional module (or panel) 200, a window 300, and a bracket 600.

[0033] Display panel 100 can be configured to display images. For example, display panel 100 may be an organic light-emitting diode (OLED) display panel. In the following description, it is assumed that display panel 100 is an OLED display panel, but this disclosure is not limited thereto. For example, alternatively, display panel 100 may be a liquid crystal display (LCD) panel, an electrophoretic display (EPD) panel, or a plasma display panel (PDP).

[0034] The display panel 100 may include a plurality of OLEDs disposed on a substrate. The substrate may be a rigid substrate formed of glass or a flexible substrate formed of polyimide (PI). When the substrate is a PI substrate, the display panel 100 may be flexible, foldable, or rollable. The display panel 100 may have a display area DA and a non-display area NDA, wherein the non-display area NDA is disposed on the periphery of the display area DA and at least partially surrounds the display area DA.

[0035] Unless otherwise stated, the terms “upper,” “top,” and “top surface” as used herein refer to the display surface side of the display panel 100, and the terms “lower,” “bottom,” and “bottom surface” as used herein refer to the side opposite to the display surface side of the display panel 100.

[0036] Functional module 200 may be disposed above display panel 100. Functional module 200 may include at least one functional layer. The functional layer may be a layer performing touch sensing functions, color filtering functions, color conversion functions, polarization functions, and / or biometric information recognition functions (e.g., fingerprint recognition functions). The functional layer may be a sheet, film, thin film, coating layer, panel, and / or plate. The functional layer may consist of a single layer or may include a stack of multiple films or coating layers. For example, the functional layer may be a touch sensing panel, a color filter, an optical film, and / or a fingerprint sensing panel. Functional module 200 is an optional component and may be omitted.

[0037] Window 300 may be positioned above functional module 200 (or above display panel 100). Window 300 may be configured to at least partially overlap with and cover the entire display panel 100. The size of window 300 may be larger than the size of display panel 100. For example, window 300 may protrude outward beyond display panel 100 on two short sides of display device 10 and / or window 300 may also protrude outward beyond display panel 100 on two long sides of display device 10. Window 300 may protrude beyond display panel 100 on two short sides more than on two long sides of display panel 100.

[0038] Window 300 may include glass, sapphire, or plastic, and may be rigid, but this disclosure is not limited thereto. For example, window 300 may alternatively be flexible.

[0039] Window 300 may include a central portion 310 and a light-shielding pattern (or decorative element) 320. The central portion 310 may at least partially overlap with the display area DA of the display panel 100, and light emitted from the display area DA may be transmitted through the central portion 310. The light-shielding pattern 320 may be disposed along the edge of window 300. The light-shielding pattern 320 may at least partially overlap with the non-display area NDA of the display panel 100, and may prevent the non-display area NDA from being seen by the user.

[0040] Window 300 can be connected to functional module 200 (or to display panel 100) via transparent bonding layer 710. Transparent bonding layer 710 can be optically clear adhesive (OCA) or optically clear resin (OCR).

[0041] The bottom panel member 20 may be disposed below the display panel 100 and may be connected to the display panel 100. The bottom panel member 20 may have substantially the same size and shape as the display panel 100 and may be configured to at least partially overlap with the display panel 100. The edges of the bottom panel member 20 may be aligned with the edges of the display panel 100, but this disclosure is not limited thereto.

[0042] The bottom panel component 20 may include a light blocking component 510, a vibratory acoustic device 400, and a buffer component 520.

[0043] The light blocking (or light absorbing) member 510 may have substantially the same shape and size as the display panel 100 and may be disposed below the display panel 100.

[0044] The light blocking member 510 can block light from being transmitted through it and can prevent components located below the light blocking member 510 (e.g., vibrating acoustic device 400, buffer member 520, etc.) from being seen from above.

[0045] The light-blocking member 510 may have a top surface on which a first recessed pattern CC1 and / or a first raised pattern CV1 (or a first embossed pattern) are formed.

[0046] The first recessed pattern CC1 is recessed from the top surface of the light-blocking member 510. (The last sentence appears to be incomplete and possibly contains errors.) Figure 6 Similarly, the first recessed pattern CC1 can be formed in a grid or mesh shape in the plan view, as is the second recessed pattern CC2 of the joining member 720. The second recessed pattern CC2 (or the first recessed pattern CC1) can have a rectangular shape alone in the plan view, but this disclosure is not limited thereto. For example, the second recessed pattern CC2 can have a polygonal (e.g., rectangular or hexagonal) or circular shape alone in the plan view.

[0047] The first recessed pattern CC1 can be formed on the top surface of the light-blocking member 510 by applying an adhesive (or an adhesive layer for forming the top surface of the light-blocking member 510) to a release film having a raised pattern corresponding to the first recessed pattern CC1, and then laminating and drying the substrate of the light-blocking member 510 on the release film. The release film can be removed when the light-blocking member 510 is bonded to the display panel 100.

[0048] Due to the presence of the first recessed pattern CC1, a first air channel can be formed between the display panel 100 and the light-blocking member 510 (or between the top and bottom surfaces of the light-blocking member 510). Air bubbles generated between the display panel 100 and the light-blocking member 510 during the attachment of the light-blocking member 510 to the display panel 100 can then be released through the first air channel. The first recessed pattern CC1 can collapse over time, and therefore, the top surface of the light-blocking member 510 can become substantially flat.

[0049] Please refer to later Figure 11 The structure of the light-blocking component 510 is described in detail.

[0050] The vibratory acoustic device 400 (or vibrator or actuator) can generate vibration in response to an acoustic signal. The vibratory acoustic device 400 may include a piezoelectric device having a layer of vibrating material.

[0051] like Figure 4 As shown, the vibratory acoustic device 400 may include a first electrode 410, a second electrode 430, and a vibrating material layer 420. The second electrode 430 may be configured to face the first electrode 410, and the vibrating material layer 420 may be inserted between the first electrode 410 and the second electrode 430.

[0052] The first electrode 410 and the second electrode 430 may each comprise a conductive material. For example, the first electrode 410 and the second electrode 430 may each comprise a transparent conductor (e.g., indium tin oxide (ITO) or indium zinc oxide (IZO)), an opaque metal, a conductive polymer, or a carbon nanotube (CNT).

[0053] The vibrating material layer 420 may include a piezoelectric material that vibrates in response to an electric field. For example, the vibrating material layer 420 may include a piezoelectric material such as lead zirconate titanate (PZT), a piezoelectric film such as polyvinylidene fluoride (PVDF) film, and / or an electroactive polymer.

[0054] The vibrating material layer 420 can be compressed or relaxed depending on the polarity of the voltage applied to it. For example, as Figure 4As shown, when a positive voltage is applied to the first electrode 410 and a negative voltage is applied to the second electrode 430, a compressive force F1 is generated in the vibrating material layer 420, causing the vibrating material layer 420 to be compressed in its thickness direction. When a negative voltage is applied to the first electrode 410 and a positive voltage is applied to the second electrode 430, a relaxation force F2 is generated in the vibrating material layer 420, causing the vibrating material layer 420 to expand in its thickness direction. Therefore, when alternating voltages of alternating polarity are applied to the first electrode 410 and the second electrode 430, the vibrating material layer 420 can repeatedly contract and expand. Due to this phenomenon, vibration can be induced in the display panel 100 adjacent to the vibratory acoustic device 400. These vibrations can be controlled by applying voltage to generate a desired sound. Thus, the display panel 100 can be used as a diaphragm for a speaker. For example, sound can be generated by changes in air pressure caused by the vibration of the display panel 100. When an OLED display panel is used as the display panel 100, sound can be generated without vibration causing screen distortion.

[0055] Generally, the larger the diaphragm of a speaker, the higher the pressure of the sound output from the diaphragm, and the better the speaker's output characteristics in the low-frequency range. When the display panel 100, which occupies a large portion of the display device 10, is used as the diaphragm, a larger diaphragm area can be ensured compared to providing a separate diaphragm in the display device 10. Therefore, the display device 10 can provide excellent sound and excellent output characteristics, especially in the low-frequency range. When the display panel 100 is used as the diaphragm, there is no need to provide a separate speaker inside the display device 10. Therefore, the size of the display device 10 can be reduced, and the structure of the display device 10 can be simplified.

[0056] In the following description, it is assumed that the vibratory acoustic device 400 includes a piezoelectric device, but this disclosure is not limited thereto. For example, the vibratory acoustic device 400 may alternatively include a permanent magnet and a coil wound around the permanent magnet to allow a current corresponding to an acoustic signal to flow through the coil and thereby generate the desired acoustic vibration.

[0057] The connecting member 720 may be disposed between the light blocking member 510 and the vibratory acoustic device 400. The vibratory acoustic device 400 may be connected to the light blocking member 510 (or to the display panel 100) via the connecting member 720.

[0058] The bonding member 720 may include double-sided adhesive tape. The bonding member 720 may be made of the same material as or a different material from the top surface of the light-blocking member 510.

[0059] As the flatness of the vibratory acoustic device 400 decreases (or the roughness of the top surface of the vibratory acoustic device 400 increases), or as the ductility of the light-blocking member 510 or the display panel 100 to which the bonding member 720 is attached decreases, the bonding member 720 may become thicker. For example, the thickness of the bonding member 720 may be in the range of 30 μm to 180 μm, 60 μm to 120 μm, or 90 μm to 180 μm (inclusive). In this example, the thickness of the light-blocking member 510 may be 1 / 3 to 1 / 2 of the thickness of the bonding member 720. For example, if the bonding member 720 has a thickness in the range of 90 μm to 180 μm, the light-blocking member 510 may have a thickness in the range of 30 μm to 60 μm, but this disclosure is not limited thereto.

[0060] A second recessed pattern CC2 and / or a second raised pattern CV2 (or a second embossed pattern) may be formed on the top surface of the joining member 720. Similar to the first recessed pattern CC1, the second recessed pattern CC2 may be recessed from the top surface of the joining member 720. Figure 6 As shown, the second recessed pattern CC2 can form a grid shape or a mesh shape in the plan view.

[0061] Due to the presence of the second recessed pattern CC2, a second air channel can be formed between the light-blocking member 510 and the vibratory acoustic device 400 (or between the top and bottom surfaces of the connecting member 720). Then, during the process of attaching the vibratory acoustic device 400 to the light-blocking member 510 (or to the display panel 100, wherein the light-blocking member 510 is attached to the display panel 100), bubbles generated between the light-blocking member 510 and the vibratory acoustic device 400 can be released through the second air channel.

[0062] The second recessed pattern CC2 of the connecting member 720 may be different from the first recessed pattern CC1 of the light blocking member 510.

[0063] The cross-sectional area (or volume per unit area) of the second air channel formed by the second recessed pattern CC2 of the joining member 720 can be greater than the cross-sectional area (or volume per unit area) of the first air channel formed by the first recessed pattern CC1 of the light blocking member 510.

[0064] According to an exemplary embodiment of the present disclosure, the surface area of ​​the second air channel formed by the second recessed pattern CC2 of the bonding member 720 (or the surface area of ​​the upper part of the second air channel in contact with the light blocking member 510) can be greater than the surface area of ​​the first air channel formed by the first recessed pattern CC1 of the light blocking member 510 (or the surface area of ​​the upper part of the first air channel in contact with the display panel 100).

[0065] For example, the surface area of ​​the second air channel formed by the second recessed pattern CC2 of the bonding member 720 (or the surface area of ​​the upper part of the second air channel in contact with the light blocking member 510) can be in the range of 10% to 30%, 10% to 20%, or 20% to 30% of the total area of ​​the top surface of the bonding member 720. In this example, the surface area of ​​the first air channel formed by the first recessed pattern CC1 of the light blocking member 510 (or the surface area of ​​the upper part of the first air channel in contact with the display panel 100) can be 10% or less, or 20% or less of the total area of ​​the top surface of the light blocking member 510.

[0066] According to an exemplary embodiment of the present disclosure, in the thickness direction of the joining member 720, the second depth T2 of the second recessed pattern CC2 (or the second protruding pattern CV2) may be greater than the first depth T1 of the first recessed pattern CC1 (or the first protruding pattern CV1).

[0067] For example, the second depth T2 of the second recessed pattern CC2 can be in the range of 1.3 to 3 times, 1.5 to 2 times, or 1.3 to 1.5 times the first depth T1 of the first recessed pattern CC1. For example, considering the thickness of the joining member 720, the second depth T2 of the second recessed pattern CC2 can be in the range of 4 μm to 15 μm, 4 μm to 8 μm, or 8 μm to 15 μm. The first depth T1 of the first recessed pattern CC1 can be less than the second depth T2 of the second recessed pattern CC2. For example, if the second depth T2 of the second recessed pattern CC2 is 12 μm, then the first depth T1 of the first recessed pattern CC1 can be in the range of 4 μm to 6 μm.

[0068] The second width D2 of the second recessed pattern CC2 (e.g., the width of the second recessed pattern CC2 in the direction parallel to the joining member 720) can be the same as or smaller than the first width D1 of the first recessed pattern CC1. Therefore, the cross-sectional area (or volume) of the second air channel formed by the second recessed pattern CC2 can be larger than the cross-sectional area (or volume) of the first air channel formed by the first recessed pattern CC1.

[0069] According to an exemplary embodiment of the present disclosure, the second width D2 of the second recessed pattern CC2 of the engaging member 720 may be greater than the first width D1 of the first recessed pattern CC1 of the light blocking member 510.

[0070] For example, the second width D2 of the second recessed pattern CC2 of the joining member 720 may be in the range of 5% to 15% of the width W2 of the second protruding pattern CV2 of the joining member 720, or in the range of 5% to 15% of the distance between the second recessed patterns CC2, wherein the second protruding pattern CV2 is defined by the second recessed pattern CC2 and protrudes upward beyond the second recessed pattern CC2. For example, the width W2 of the second protruding pattern CV2 (or the distance between the second recessed patterns CC2) may be in the range of 150 μm to 800 μm, 150 μm to 250 μm, or 400 μm to 800 μm, and the second width D2 of the second recessed pattern CC2 may be in the range of 4 μm to 15 μm, 4 μm to 8 μm, or 8 μm to 15 μm.

[0071] For example, the first width D1 of the first recessed pattern CC1 of the light-blocking member 510 may be 5% or less of the width W1 of the first protruding pattern CV1 of the light-blocking member 510, or may be 5% or less of the distance between the first recessed patterns CC1, wherein the first protruding pattern CV1 is defined by the first recessed pattern CC1 and protrudes upward beyond the first recessed pattern CC1. For example, the width W1 of the first protruding pattern CV1 (or the distance between the first recessed patterns CC1) may be in the range of 150 μm to 200 μm, and the first width D1 of the first recessed pattern CC1 may be in the range of 3 μm to 6 μm.

[0072] Therefore, the cross-sectional area of ​​the second air channel formed by the second recessed pattern CC2 can be greater than the cross-sectional area of ​​the first air channel formed by the first recessed pattern CC1.

[0073] The bottom surface of the display panel 100 can be relatively flat, and the light-blocking member 510 can be relatively flexible. Therefore, even if the display panel 100 to which the window 300 is attached is rigid, only a relatively small number of bubbles can be generated in the display panel 100 when the light-blocking member 510 is attached or connected to the display panel 100. Then, even if the first air channel is relatively narrow, the generated bubbles can be appropriately released through the first air channel.

[0074] The top surface of the vibratory acoustic device 400 can be relatively rough (e.g., the flatness of the top surface of the vibratory acoustic device 400 can be less than the flatness of the bottom surface of the display panel 100), and the vibratory acoustic device 400 can be rigid. When a separate light-blocking member 510 or a light-blocking member 510 attached to the display panel 100 is coupled to the vibratory acoustic device 400 (e.g., when two relatively rigid objects with uneven surfaces are coupled), a relatively large number of bubbles can be generated. However, since the first air channel can be formed relatively wide due to the presence of the second recessed pattern CC2 of the coupling member 720, the bubbles generated between the light-blocking member 510 and the vibratory acoustic device 400 can be effectively released through the first air channel. Therefore, even without using a separate vacuum device, the vibratory acoustic device 400 can be coupled to the light-blocking member 510 through the coupling member 720 on which the second recessed pattern CC2 is formed without generating bubbles.

[0075] Since the shape of the second recessed pattern CC2 of the joining member 720 can be maintained for a period of time, any remaining unreleased air bubbles (e.g., air bubbles generated during the connection of the vibratory acoustic device 400 and the light blocking member 510 that failed to be released) between the light blocking member 510 and the vibratory acoustic device 400 can be appropriately released during the use of the display device 10. Therefore, any defects that may be caused by air bubbles (e.g., air bubbles becoming visible on the screen or the phenomenon of zebra patterns appearing on the screen due to air bubbles) can be prevented.

[0076] The cushioning member 520 prevents damage to the display panel 100, window 300, etc., by absorbing external impacts. The cushioning member 520 may consist of a single layer or a stack of multiple films or coatings. For example, the cushioning member 520 may be formed from a polymer resin such as polyurethane (PU), polycarbonate (PC), polypropylene (PP), or polyethylene (PE), or may include an elastic material such as foam rubber sponge, polyurethane-based material, or acrylic material. The cushioning member 520 may be a padding layer.

[0077] The buffer member 520 may not overlap with the vibratory acoustic device 400. Since the buffer member 520 may be formed of an elastic material and may not overlap with the vibratory acoustic device 400, vibrations generated by the vibratory acoustic device 400 can be transmitted to the display panel 100 without being absorbed by the buffer member 520.

[0078] The bracket 600 can be positioned below the display panel 100 and the bottom panel component 20 (or below the vibratory acoustic device 400 and the buffer component 520).

[0079] The bracket 600 can be a container for receiving and protecting the various parts and components of the display device 10. For example, the bracket 600 can receive the functional module 200, the display panel 100, and the panel bottom member 20.

[0080] The stent 600 can be formed from synthetic resin material, metal material or a combination of different materials.

[0081] The bracket 600 may be partially exposed on the side of the display panel 100 to form the outer side of the display device 10. A housing may be attached to the bottom of the bracket 600, but this disclosure is not limited thereto. For example, the bracket 600 may alternatively be configured as the housing of the display device 10.

[0082] The bracket 600 may include a bottom portion 610 and sidewalls 620. The top surface of the bottom portion 610 may face the bottom surfaces of the vibratory acoustic device 400 and the buffer member 520. The sidewalls 620 of the bracket 600 may face the sides of the functional module 200, the display panel 100, and the buffer member 520. The top of the sidewalls 620 may face the window 300. The outer side of the bracket 600 may be aligned with the outer side of the window 300. The window 300 may be attached to the bracket 600 via a waterproof tape.

[0083] The sidewall 620 of the bracket 600 can be set on the outer side of the window 300, and the side of the bracket 600 can face the outer side of the window 300.

[0084] The bottom portion 610 may include a recess 650 corresponding to the vibratory acoustic device 400. The vibratory acoustic device 400 may be received in the recess 650 of the bottom portion 610 if it protrudes downward beyond the buffer member 520. The bottom surface and sides of the vibratory acoustic device 400 may be spaced apart from the top surface of the bottom portion 610 (including the recess 650) to ensure space for vibration of the vibratory acoustic device 400. However, this disclosure is not limited to this particular configuration. For example, alternatively, the bottom surface and / or sides of the vibratory acoustic device 400 may partially contact the recess 650, or alternatively, may be coupled to the recess 650 by a double-sided band.

[0085] The bottom surface of the bottom portion 610 can be flat. Therefore, the portion of the bottom portion 610 where the vibrating acoustic device 400 is disposed (e.g., the thickness of the portion of the bottom portion 610 where the groove 650 is formed) can be thinner than the rest of the bottom portion 610. The thickness of the bottom portion 610 can be uniform in areas outside the region where the vibrating acoustic device 400 is disposed.

[0086] The bottom portion 610 of the bracket 600 may further include a hole penetrating the bottom portion 610 in its thickness direction. For example, the bottom portion 610 of the bracket 600 may also include a battery hole 670 into which a battery is inserted. The battery hole 670 may be formed in the middle portion of the bottom portion 610 of the bracket 600. The battery hole 670 may at least partially overlap with the cushioning member 520. For example, the cushioning member 520 may be removed from the region corresponding to the recess 650 and may be formed in the region corresponding to the battery hole 670 to cover the battery hole 670.

[0087] The buffer member 520 may also include a top bonding layer and a bottom bonding layer 530. The buffer member 520 may be fixed to the display panel 100 via the top bonding layer and to the bracket 600 via the bottom bonding layer 530.

[0088] Each of the top bonding layer and the bottom bonding layer 530 may include an adhesive layer or a resin layer. For example, each of the top bonding layer and the bottom bonding layer 530 may include a siloxane-based polymer, a urethane-based polymer, a siloxane-urethane hybrid polymer, an acrylic polymer, an isocyanate polymer, a polyvinyl alcohol polymer, a gelatin polymer, a vinyl polymer, a latex polymer, a polyester polymer, and / or a water-based polyester polymer.

[0089] The bottom bonding layer 530 may be disposed below the buffer member 520. For example, the bottom bonding layer 530 may have a thickness in the range of 60 μm to 120 μm, but this disclosure is not limited thereto. The bottom bonding layer 530 may be configured to expose at least a portion of the bottom surface of the buffer member 520.

[0090] like Figure 3 and Figure 6 As shown, the bottom bonding layer 530 may have an island-like pattern that is isolated from each other. The bottom bonding layer 530 may not overlap with the groove 650 and battery hole 670 of the bottom portion 610 of the support 600, and may be arranged at a uniform density in areas other than the areas where the groove 650 and battery hole 670 are formed. The island-like pattern of the bottom bonding layer 530 may have a circular shape, but this disclosure is not limited thereto. For example, the island-like pattern of the bottom bonding layer 530 may alternatively have a rectangular shape or another polygonal shape.

[0091] The buffer member 520 and the support 600 can be spaced apart from each other in areas where the bottom bonding layer 530 is not provided. Areas where the bottom bonding layer 530 is not provided (e.g., areas where the buffer member 520 and the support 600 are spaced apart from each other) are provided throughout the buffer member 520. Empty spaces where the bottom bonding layer 530 is not provided can be interconnected and can also be connected to the vibrating acoustic device 400. These empty spaces can become resonant spaces that can be used as speaker enclosures and can amplify the sound generated by the vibrating acoustic device 400. Since the entire area where the bottom bonding layer 530 is not provided can be used as a resonant space, a sufficiently large resonant space can be configured relative to the size of the entire display device 10. When the empty spaces where the bottom bonding layer 530 is not provided are connected to the battery hole 670, the empty space inside the battery hole 670 (or the space between the buffer member 520 and the battery installed in the battery hole 670) can also be used as a resonant space and can further amplify the sound.

[0092] As described above, since the bottom panel component 20 includes a vibrating acoustic device 400, the display device 10 can be equipped with a sound-generating function.

[0093] The vibratory acoustic device 400 can be connected to the light blocking member 510 (or the display panel 100) via a bonding member 720 having a second recessed pattern CC2 formed thereon, without generating bubbles and without the need for additional vacuum equipment.

[0094] Since the shape of the second recessed pattern CC2 (or the shape of the second raised pattern) of the joining member 720 can be maintained for a period of time, any remaining unreleased air bubbles between the joining member 720 and the light blocking member 510 can be released through the second air channel formed by the second recessed pattern CC2, and thus defects that may be caused by air bubbles can be prevented.

[0095] Because the bottom bonding layer 530 has an island pattern and connects the bracket 600 to the buffer member 520 while leaving an empty space between the bracket 600 and the buffer member 520, a large resonance space can be formed by spatially connecting the empty space between the bracket 600 and the buffer member 520, and thus, the sound-emitting function of the display device 10 can be made more effective.

[0096] Figure 7 This is a cross-sectional view of an exemplary panel bottom component. Figures 8A to 8C Yes, it can be included in Figure 7 A perspective view of various exemplary joining components in the bottom component of the panel.

[0097] refer to Figure 7 and Figure 8A Panel bottom component 20_1 and Figure 5 The difference in the bottom component 20 of the panel is that, Figure 7 and Figure 8A The bottom panel component 20_1 includes a joining component 720_1.

[0098] The bonding member 720_1 may include a substrate 721, a first bonding layer 723, and a second bonding layer 724. The bonding member 720_1 may also include a raised pattern 722.

[0099] like Figure 8A As shown, substrate 721 may have a plate-like shape. Substrate 721 may be formed of a flexible polymer material, such as polyethylene terephthalate (PET), PI, PC, PE, PP, polysulfone (PSF), polymethyl methacrylate (PMMA), triacetyl cellulose (TAC), and / or cyclic olefin polymer (COP).

[0100] The protruding patterns 722 may be disposed on the substrate 721 and may be arranged in a matrix at predetermined intervals (e.g., having a first width D1). The protruding patterns 722 may have a rectangular shape in a planar view to correspond to the second recessed pattern CC2 (or the second protruding pattern CV2), but this disclosure is not limited thereto. For example, the protruding patterns 722 may alternatively have a circular shape, a triangular shape, or another polygonal shape in a planar view. The width of the protruding patterns 722 may be the same as or less than the width W2 of the second protruding pattern CV2. The distance between the protruding patterns 722 may be the same as or greater than the second width D2 of the second recessed pattern CC2. The height H1 of the protruding patterns 722 may be the same as or greater than the second depth T2 of the second recessed pattern CC2.

[0101] The raised pattern 722 may comprise the same material as the substrate 721. For example, the raised pattern 722 may be integrally formed with the substrate 721.

[0102] The first bonding layer 723 may be disposed over the substrate 721 and the raised pattern 722 (or on the top surface of the substrate 721 and the raised pattern 722) and may include an adhesive layer or a resin layer. For example, the first bonding layer 723 may include a siloxane-based polymer, a urethane-based polymer, a siloxane-urethane hybrid polymer, an acrylic polymer, an isocyanate polymer, a polyvinyl alcohol polymer, a gelatin polymer, a vinyl polymer, a latex polymer, a polyester polymer, and / or a water-based polyester polymer.

[0103] The first bonding layer 723 may be uniformly applied or coated on the substrate 721, and may have a raised pattern (or a first raised pattern CV1 and a first recessed pattern CC1) due to the presence of the raised pattern 722. Due to the presence of the raised pattern 722, the shape of the raised pattern of the first bonding layer 723 (or bonding member 720_1) may be maintained for a period of time.

[0104] The second bonding layer 724 may be disposed below the substrate 721 (or on the bottom surface of the substrate 721) and may include one of the above examples of the material of the first bonding layer 723.

[0105] Figure 8A The raised pattern 722 is shown as an island pattern, but this disclosure is not limited thereto.

[0106] refer to Figure 8B , joint component 720_1 and Figure 8A The difference between the joint member 720_1 and the joint member 720_1 is that, Figure 8B The joining member 720_1 includes a protruding pattern 722_1.

[0107] The protruding pattern 722_1 can be a linear pattern with a predetermined width (e.g., the width W2 of the second protruding pattern CV2), and the protruding pattern 722_1 can extend in the first direction DR1 and can be arranged at predetermined distances (e.g., the second width D2) in the second direction DR2 intersecting the first direction DR1. In this case, the second air channel formed by the second recessed pattern CC2 can be connected to the outside only in the first direction DR1.

[0108] refer to Figure 8C , joint component 720_2 and Figure 8A The difference between the bonding member 720_1 and the bonding member 720_2 is that the bonding member 720_2 includes a substrate 721_2 and a protruding pattern 722_2.

[0109] The substrate 721_2 may include a linear pattern having a predetermined width (e.g., the width W2 of the second protruding pattern CV2) and extending in a second direction DR2, and may be arranged at predetermined intervals (e.g., a second width D2) in a first direction DR1. Protruding patterns 722_2 may be disposed on the substrate 721_2, may have a predetermined width (e.g., the width W2 of the second protruding pattern CV2), may extend in the first direction DR1, and may be arranged at predetermined intervals (e.g., a second width D2) in the second direction DR2. For example, the substrate 721_2 and the protruding patterns 722_2 may form a mesh structure or a fabric structure in a planar view.

[0110] As per the above reference Figures 7 to 8CAs described, the joining member 720, 720_1, or 720_2 includes a protruding pattern 722, 722_1, or 722_2 corresponding to the second recessed pattern CC2. Therefore, the shape of the second recessed pattern CC2 can be maintained for a period of time.

[0111] Figures 9 to 11 These are cross-sectional views of various exemplary panel bottom components. Figure 12 It is shown that it includes Figure 11 A perspective view of an exemplary joining member in the bottom component of the panel.

[0112] refer to Figure 1 , Figure 3 , Figure 5 and Figure 9 Panel bottom component 20_2 and Figure 5 The difference in the bottom component 20 of the panel is that, Figure 9 The bottom panel component 20_2 includes a light-blocking component 510_1.

[0113] The light-blocking component 510_1 may include a substrate 511, a first light-absorbing (or light-blocking) layer 512, and an upper bonding layer 513. The light-blocking component 510_1 may also include a second light-absorbing layer 514.

[0114] The substrate 511 may be formed of PET, PI, PC, PE, PP, PSF, PMMA, TAC and / or COP.

[0115] The first light absorption layer 512 may be disposed on the top surface of the substrate 511. The first light absorption layer 512 may be disposed directly on the top surface of the substrate 511. The first light absorption layer 512 may be disposed on the entire top surface of the substrate 511.

[0116] The first light-absorbing layer 512 blocks light from passing through it and thus prevents the vibrating acoustic device 400 beneath it from being visible from above. The first light-absorbing layer 512 may include a light-absorbing material, such as a black pigment or dye. For example, the first light-absorbing layer 512 may include black ink. The first light-absorbing layer 512 may be formed on the top surface of the substrate 511 by coating or printing.

[0117] The upper bonding layer 513 may be disposed on the top surface of the first light-absorbing layer 512 (or substrate 511). The upper bonding layer 513 may attach the light-blocking member 510_1 to the bottom surface of the display panel 100. The upper bonding layer 513 may include an adhesive layer or a resin layer. For example, the upper bonding layer 513 may include a siloxane-based polymer, a urethane-based polymer, a siloxane-urethane hybrid polymer, an acrylic polymer, an isocyanate polymer, a polyvinyl alcohol polymer, a gelatin polymer, a vinyl polymer, a latex polymer, a polyester polymer, or a water-based polyester polymer.

[0118] The first recessed pattern CC1 may be formed on the top surface of the upper bonding layer 513. As described above, the first recessed pattern CC1 may be formed by applying an adhesive (or an adhesive for forming the upper bonding layer 513) to a release film having a raised pattern corresponding to the first recessed pattern CC1 and drying the adhesive. The release film may be removed when the light-blocking member 510_1 is bonded to the display panel 100, and the light-blocking member 510_1 may be attached to the display panel 100 via the upper bonding layer 513.

[0119] The second light-absorbing layer 514 may be disposed on the bottom surface of the substrate 511 and may be substantially the same as the first light-absorbing layer 512. Therefore, any details in the description of the omitted second light-absorbing layer 514 may be understood to be at least similar to the corresponding details described above.

[0120] refer to Figure 5 and Figure 10 , Figure 10 The bottom component of the panel 20_3 and Figure 5 The difference in the bottom component 20 of the panel is that, Figure 10 The bottom panel component 20_3 includes a first joining component 720_3 and a second joining component 730.

[0121] Figure 10 The first connecting member 720_3 and Figure 5 The difference of the first engagement member 720 is that the first engagement member 720_3 includes a second recessed pattern CC2_1 (or raised pattern).

[0122] The second width D2 of the second recessed pattern CC2_1 formed on the top surface of the first joining member 720_3, the distance between the second recessed patterns CC2_1 (or the width W2 of the second protruding pattern CV2_1), and the second depth T2 of the second recessed pattern CC2_1 can be the same as the first width D1 of the first recessed pattern CC1 formed on the top surface of the light blocking member 510, the distance between the first recessed patterns CC1 (or the width W1 of the first protruding pattern CV1), and the first depth T1 of the first recessed pattern CC1.

[0123] The second bonding member 730 may be disposed between the light blocking member 510 and the first bonding member 720_3. The third recessed pattern CC3 (and the third protruding pattern CV3) may be formed on the bottom surface of the second bonding member 730.

[0124] The third width D3 of the third recessed pattern CC3 of the second joining member 730, the distance between the third recessed patterns CC3 (or the width W3 of the third protruding pattern CV3), and the third depth T3 of the third recessed pattern CC3 can be the same as the second width D2 of the second recessed pattern CC2_1 formed on the top surface of the first joining member 720_3, the distance between the second recessed patterns CC2_1 (or the width W2 of the second protruding pattern CV2_1), and the second depth T2 of the second recessed pattern CC2_1.

[0125] For example, the second joining member 730 and the first joining member 720_3 can be integrally formed as a single joining member (e.g., double-sided adhesive tape) and can be cut (or otherwise separated) to be attached to the top surface of the vibratory acoustic device 400 and the bottom surface of the light blocking member 510, respectively, thereby connecting the vibratory acoustic device 400 and the light blocking member 510. For example, the second joining member 730 can be integrally formed with the light blocking member 510.

[0126] The second recessed pattern CC2_1 of the first bonding member 720_3 and the third recessed pattern CC3 of the second bonding member 730 can form a second air channel, and the size (or cross-sectional area) of the second air channel can be larger than the size (or cross-sectional area) of the first air channel formed by the first recessed pattern CC1 of the light blocking member 510. Therefore, even if a large number of bubbles are generated or a large number of bubbles remain unreleased during the process of connecting the individual light blocking member 510 or the light blocking member 510 connected to the display panel 100 to the vibratory acoustic device 400, the bubbles can be easily released through the second air channel.

[0127] like Figure 10 As shown, even when using a bonding member with a relatively small recessed pattern (or raised pattern) formed thereon, by attaching the bonding member to the bottom surface of the light blocking member 510 and the top surface of the vibrating acoustic device 400, it is possible to prevent the generation of bubbles or defects that may be caused by such bubbles during the connection process between the light blocking member 510 and the vibrating acoustic device 400.

[0128] refer to Figure 11 and Figure 12 , Figure 11 The bottom component of the panel 20_4 and Figure 10 The difference between the bottom panel component 20_3 and the other component is that... Figure 11 The bottom panel component 20_4 includes a first joining component 720_4 and a second joining component 730_1.

[0129] The first bonding member 720_4 may be disposed on the top surface of the vibratory acoustic device 400, and may have a top surface on which a second recessed pattern CC2_1 is formed. Similarly, the second bonding member 730_1 may be disposed on the bottom surface of the light blocking member 510, and may have a bottom surface on which a third recessed pattern CC3 is formed.

[0130] The first connecting member 720_4 can be coupled with Figure 8B The joining members 720_1 are substantially the same. For example, the second recessed pattern CC2_1 of the first joining member 720_4 may extend in the first direction DR1 and may be repeatedly arranged in the second direction DR2.

[0131] The second joining member 730_1 can be obtained by inverting the first joining member 720_4 vertically and rotating the first joining member 720_4 90 degrees clockwise (or counterclockwise) relative to a vertical axis (e.g., an axis perpendicular to one surface of the first joining member 720_4). For example, the third recessed pattern CC3 of the second joining member 730_1 can extend in the second direction DR2 and can be repeatedly arranged in the first direction DR1.

[0132] The second recessed pattern CC2_1 of the first connecting member 720_4 and the third recessed pattern CC3 of the second connecting member 730_1 can intersect each other and form a second air channel in a grid shape.

[0133] Figure 13 This is a cross-sectional view of an exemplary panel bottom component.

[0134] refer to Figure 3 , Figure 5 and Figure 13 , Figure 13 The bottom component of the panel 20_5 and Figure 5 The difference in the bottom component 20 of the panel is that, Figure 13 The bottom panel component 20_5 includes a light-blocking component 510_2, but does not include... Figure 5 The connecting component 720.

[0135] The light-blocking member 510_2 may have a bottom surface on which a third recessed pattern CC3 is formed and a top surface on which a first recessed pattern CC1 is formed.

[0136] The first recessed pattern CC1 can be with Figure 5 The first recessed pattern CC1 is essentially the same. Therefore, any details relating to the omitted description can be understood as being at least similar to the corresponding details described above.

[0137] The third recessed pattern CC3 can be combined with Figure 5The second recessed pattern CC2 is essentially the same. For example, the third width D3 of the third recessed pattern CC3, the distance between the third recessed patterns CC3 (or the width W3 of the third protruding pattern CV3 defined by the third recessed pattern CC3), and the third depth T3 of the third recessed pattern CC3 can be respectively compared with... Figure 5 The second width D2 of the second recessed pattern CC2 Figure 5 The distance between the second recessed patterns CC2 (or Figure 5 The width W2 of the second protruding pattern CV2 and Figure 5 The second depth T2 of the second recessed pattern CC2 is basically the same.

[0138] The third recessed pattern CC3 may be formed only on the portion of the bottom surface of the light-blocking member 510_2 that overlaps with the vibrating acoustic device 400. For example, the third recessed pattern CC3 may not be formed on the portion of the bottom surface of the light-blocking member 510_2 that overlaps with the buffer member 520, but this disclosure is not limited thereto. For example, a recessed pattern different from the third recessed pattern CC3 may be formed on the portion of the bottom surface of the light-blocking member 510_2 that overlaps with the buffer member 520. Alternatively, if a rigid functional layer is provided between the light-blocking member 510_2 and the buffer member 520, the third recessed pattern CC3 may be formed on the entire bottom surface of the light-blocking member 510_2.

[0139] The bottom surface of the light-blocking member 510_2 can be adhesive, and therefore the vibratory acoustic device 400 can be directly connected to the bottom surface of the light-blocking member 510_2. For example, no connecting member may be inserted between the light-blocking member 510_2 and the vibratory acoustic device 400.

[0140] Figure 14 and Figure 15 This is a cross-sectional view of an exemplary panel bottom component.

[0141] First refer to Figure 13 and Figure 14 , Figure 14 The bottom component of the panel 20_6 and Figure 13 The difference between panel bottom component 20_5 and other components is that... Figure 14 The bottom panel component 20_6 includes a light-blocking component 510_3.

[0142] The light-blocking component 510_3 may include a substrate 511, a first light-absorbing layer 512, an upper bonding layer 513, a second light-absorbing layer 514, and a lower bonding layer 515. The light-blocking component 510_3 and... Figure 9 The difference between the light blocking member 510_1 and the light blocking member 510_3 is that the light blocking member 510_3 also includes a lower bonding layer 515.

[0143] The lower bonding layer 515 may be disposed on the bottom surface of the second light-absorbing layer 514 (or on the bottom surface of the substrate 511). The lower bonding layer 515 can connect the light-blocking member 510_3 and the vibratory acoustic device 400 together, and can also connect the light-blocking member 510_3 and the buffer member 520 together. The lower bonding layer 515 may include an adhesive layer or a resin layer, and may include the same material as the upper bonding layer 513.

[0144] The third recessed pattern CC3 may be formed on the bottom surface of the lower bonding layer 515. Similar to the first recessed pattern CC1, the third recessed pattern CC3 may be formed by coating an adhesive (or an adhesive layer for forming the lower bonding layer 515) onto a release film having a raised pattern corresponding to the third recessed pattern CC3 and laminating and drying the substrate 511 of the light blocking member 510_3 (or the substrate 511 connected to the second light absorbing layer 514).

[0145] like Figure 14 As shown, the third recessed pattern CC3 may be formed only on the portion of the bottom surface of the lower bonding layer 515 that overlaps with the vibratory acoustic device 400. For example, the third recessed pattern CC3 may not be formed on the portion of the lower bonding layer 515 that overlaps with the buffer member 520, but this disclosure is not limited thereto.

[0146] refer to Figure 13 and Figure 15 The bottom component of the panel 20_7 and Figure 13 The difference between panel bottom component 20_5 and other components is that... Figure 15 The bottom panel component 20_7 includes a light-blocking component 510_4 and a connecting component 720_3.

[0147] Light blocking component 510_4 and Figure 13 The difference between the light-blocking component 510_2 and the light-blocking component 510_2 is that... Figure 15 The light-blocking member 510_4 includes a bottom surface on which a third recessed pattern CC3 is formed.

[0148] The third recessed pattern CC3 can be combined with Figure 10 The third recessed pattern CC3 is substantially the same. For example, the third width D3, the distance between the third recessed patterns CC3 (or the width W3 of the third protruding pattern CV3) and the third depth T3 of the third recessed pattern CC3 formed on the bottom surface of the light blocking member 510_4 can be the same as the first width D1, the distance between the first recessed patterns CC1 (or the width W1 of the first protruding pattern CV1) and the first depth T1 of the first recessed pattern CC1 formed on the top surface of the light blocking member 510_4.

[0149] The third recessed pattern CC3 may be formed only on the portion of the bottom surface of the light blocking member 510_4 that overlaps with the vibrating acoustic device 400. For example, the third recessed pattern CC3 may not be formed on the portion of the light blocking member 510_4 that overlaps with the buffer member 520, but this disclosure is not limited thereto.

[0150] The connecting member 720_3 can be with Figure 10 The first joining member 720_3 is substantially the same. For example, the second width D2 of the second recessed pattern CC2 formed on the top surface of the joining member 720_3, the distance between the second recessed patterns CC2 (or the width W2 of the second protruding pattern CV2), and the second depth T2 of the second recessed pattern CC2 can be the same as the first width D1 of the first recessed pattern CC1 formed on the top surface of the light blocking member 510_4, the distance between the first recessed patterns CC1 (or the width W1 of the first protruding pattern CV1), and the first depth T1 of the first recessed pattern CC1.

[0151] Therefore, even if the light blocking member 510_4 and the connecting member 720_3 have relatively small recessed patterns (or raised patterns), by allowing the third recessed pattern CC3 of the light blocking member 510_4 and the second recessed pattern CC2 of the connecting member 720_3 to overlap or directly contact each other, bubbles or defects that may be caused by such bubbles can be prevented during the connection process of the light blocking member 510_4 and the vibratory acoustic device 400.

[0152] Figure 16 It is based on the exemplary embodiments of this disclosure. Figure 1 A cross-sectional view of the display device taken by line A-A'. Figure 17 It is shown Figure 16 An enlarged sectional view of part Q1.

[0153] refer to Figure 1 , Figure 3 , Figure 16 and Figure 17 , Figure 16 The display device 10_1 and Figure 3 The difference in the display device 10 is that, Figure 16 The display device 10_1 includes a panel bottom component 20_8. The panel bottom component 20_8 and Figure 5 The difference between panel bottom component 20 and panel bottom component 20_8 is that panel bottom component 20_8 also includes functional layer 540.

[0154] The bottom panel component 20_8 can perform functions such as heat dissipation, electromagnetic shielding, pattern visibility prevention, grounding, reinforcement, and / or digitization. In this case, the functional layer 540 can be a support substrate, a heat dissipation layer, an electromagnetic shielding layer, a shock absorption layer, a bonding layer, a pressure sensor, and / or a digital converter.

[0155] The functional layer 540 may be disposed between the light blocking member 510 and the vibratory acoustic device 400 (or the connecting member 720) and between the light blocking member 510 and the buffer member 520.

[0156] The functional layer 540 may have substantially the same size and shape as the light blocking member 510, may be disposed below the light blocking member 510, and may be attached to the bottom surface of the light blocking member 510 by an additional adhesive film.

[0157] The functional layer 540 may be a sheet, film, thin film, coating, panel, and / or plate. The functional layer 540 may consist of a single layer or may include a stack of multiple films or coatings.

[0158] According to an exemplary embodiment of this disclosure, the functional layer 540 may be a black strip. Here, the black strip can prevent components disposed below it (e.g., vibratory acoustic device 400, buffer member 520, etc.) from being visible from above.

[0159] According to an exemplary embodiment of this disclosure, functional layer 540 may be a digital converter. The digital converter may be attached to the bottom surface of light-blocking member 510 via an adhesive film.

[0160] The digitizer receives information related to the location specified by the user on the screen. It recognizes movements, such as those of a stylus or finger, and converts these movements into digital signals. The digitizer can be provided in the form of a film or panel.

[0161] Figure 16 Only one functional layer is shown, but this disclosure is not limited thereto. For example, functional layer 540 may consist of a stack of at least two of the following: a support substrate, a heat dissipation layer, an electromagnetic shielding layer, a pressure sensor, and a digital converter.

[0162] Figure 18 This is a cross-sectional view of an exemplary panel bottom component.

[0163] refer to Figure 18 The bottom component of the panel 20_9 and Figure 17 The difference between the bottom panel component 20_8 and the other component is that... Figure 18 The bottom panel component 20_9 includes a heat dissipation component 550.

[0164] and Figure 17Similarly, the heat dissipation component 550 can be disposed between the light blocking component 510 and the vibratory acoustic device 400 (or the connecting component 720) and between the light blocking component 510 and the buffer component 520.

[0165] The heat dissipation component 550 may include at least one heat dissipation layer. The heat dissipation component 550 may include two heat dissipation layers, such as a first heat dissipation layer 551 and a second heat dissipation layer 555, and a bonding layer 553.

[0166] The first heat dissipation layer 551 and the second heat dissipation layer 555 can be formed of the same material, or they can be formed of different materials with different heat dissipation properties. For example, the first heat dissipation layer 551 may include graphite or CNT. The second heat dissipation layer 555 can block electromagnetic waves and may include various materials with excellent thermal conductivity. For example, the second heat dissipation layer 555 may include a thin film formed of a metal such as copper, nickel, ferrite, or silver.

[0167] The second heat dissipation layer 555 may be disposed below the first heat dissipation layer 551. The first heat dissipation layer 551 and the second heat dissipation layer 555 may be disposed overlapping each other. The size of the first heat dissipation layer 551 may be smaller than the size of the second heat dissipation layer 555, and the side of the first heat dissipation layer 551 may be disposed inside the side of the second heat dissipation layer 555.

[0168] A bonding layer 553 may be disposed between the first heat dissipation layer 551 and the second heat dissipation layer 555. The bonding layer 553 can connect the first heat dissipation layer 551 and the second heat dissipation layer 555 together and can completely cover the first heat dissipation layer 551. The bonding layer 553 may be formed from one of the above-described examples of the material of the bottom bonding layer 530.

[0169] According to an exemplary embodiment of this disclosure, similar to the buffer member 520, the heat dissipation member 550 may not overlap with the vibratory acoustic device 400. Here, sufficient space can be ensured for the vibration of the vibratory acoustic device 400.

[0170] Figure 17 and Figure 18 Panel bottom members 20_8 and 20_9 are shown respectively as including only one functional layer 540 or only one heat dissipation member 550, but this disclosure is not limited thereto. For example, alternatively, each of the three layers included in panel bottom member 20_9 (e.g., first heat dissipation layer 551, bonding layer 553 and second heat dissipation layer 555) may be one of a support substrate, a heat dissipation layer, an electromagnetic shielding layer, a shock absorption layer, a bonding layer, a pressure sensor and a digital converter.

[0171] Although exemplary embodiments of the invention have been disclosed for illustrative purposes, those skilled in the art will understand that various modifications, additions, and substitutions can be made without departing from the scope and spirit of the invention.

Claims

1. Bottom panel components, including: A light-blocking element having a first recessed pattern formed on its top surface; A buffer element is disposed on the bottom surface of the light blocking element; as well as The connector has a top surface that is coupled to the second surface of the light-blocking member, the connector not overlapping the buffer member, and the connector having a second recessed pattern formed on its top surface. Wherein, the first volume per unit area of ​​the first air channel caused by the first recessed pattern between the top and bottom surfaces of the light blocking member is less than the second volume per unit area of ​​the second air channel caused by the second recessed pattern between the top and bottom surfaces of the joining member.

2. The panel bottom assembly according to claim 1, wherein, The area of ​​the top surface of the second air channel that contacts the light blocking member is in the range of 10% to 30% of the area of ​​the top surface of the connector.

3. The panel bottom assembly according to claim 1, wherein, The first recessed pattern of the light-blocking member has a first depth in the thickness direction of the light-blocking member that is less than the second recessed pattern in the thickness direction.

4. The panel bottom assembly according to claim 1, wherein, The first width of the first recessed pattern in a direction parallel to the top surface of the light-blocking member is less than the second width of the second recessed pattern in that direction.

5. The panel bottom assembly according to claim 4, wherein, The second width of the second recessed pattern in one direction is in the range of 5% to 15% of the width of the protruding pattern defined by the second recessed pattern.

6. The panel bottom assembly according to claim 1, wherein, The joining element is a double-sided adhesive tape.

7. The panel bottom assembly according to claim 1, further comprising: A vibratory acoustic device is located on the bottom surface of the joint. The buffer does not overlap with the vibratory acoustic device.

8. The panel bottom assembly according to claim 7, wherein, The light-blocking component includes: Substrate; A first light-blocking layer is disposed on the top surface of the substrate and at least partially overlaps with the vibratory acoustic device; A top bonding layer is disposed on the top surface of the first light-blocking layer; and The second light-blocking layer at least partially overlaps with the vibratory acoustic device. Wherein, the second light-blocking layer is disposed on the bottom surface of the substrate, and Each of the connector and the vibratory acoustic device is disposed below the second light-blocking layer.

9. The panel bottom assembly according to claim 7, further comprising: An interlayer bonding component is disposed between the light-blocking component and the buffer component, and spaced apart from the bonding component. The interlayer assembly does not overlap with the vibratory acoustic device.

10. The panel bottom assembly according to claim 1, wherein, The joining member is disposed between the light blocking member and the buffer member, and wherein the second recessed pattern does not overlap with the buffer member.

11. Bottom panel components, including: A light-blocking element having a first recessed pattern formed on its top surface; A buffer element is disposed on the bottom surface of the light blocking element; as well as A connector, attached to the light-blocking member, wherein the connector does not overlap with the buffer member, wherein the connector comprises: The substrate has a third protruding pattern formed on its top surface. A first adhesive layer is disposed on the top surface of the substrate and has a second recessed pattern formed on its top surface. A second adhesive layer is disposed on the bottom surface of the substrate, and The third protruding pattern is substantially aligned with the second recessed pattern.

12. The panel bottom assembly according to claim 11, wherein, The third protruding pattern is arranged repeatedly and isolated from each other.

13. The panel bottom assembly according to claim 11, wherein, The third protruding pattern extends in the first direction and is repeatedly arranged in the second direction intersecting the first direction.

14. The panel bottom assembly according to claim 11, wherein, The second recessed pattern and the third protruding pattern of the first adhesive layer intersect each other and form a mesh-like air channel structure.

15. The panel bottom assembly according to claim 14, wherein, The mesh structure has a fabric structure, and wherein the joining member includes a first line extending in a first direction and arranged in a second direction intersecting the first direction, and the joining member further includes a second line extending in the second direction and arranged in the first direction intersecting the first line.

16. The panel bottom assembly of claim 11, further comprising: The vibratory acoustic device is located on the bottom surface of the second adhesive layer. The buffer does not overlap with the vibratory acoustic device.

17. The panel bottom assembly according to claim 16, wherein, The vibratory acoustic device includes a first electrode, a second electrode, and a vibrating material layer disposed between the first electrode and the second electrode. The vibrating material layer includes a piezoelectric material, a piezoelectric film, and / or an electroactive polymer.

18. Bottom panel components, including: A light-blocking element having a first recessed pattern formed on its top surface; A connector is disposed on the bottom surface of the light blocking member, the connector having a second set of recessed patterns formed on its top surface; A buffer element is disposed on the bottom surface of the light blocking element, and the buffer element does not overlap with the connecting element; as well as A heat dissipation component is located between the light blocking component and the buffer component.

19. The panel bottom assembly of claim 18, further comprising: A vibratory acoustic device is located on the bottom surface of the joint. The buffer does not overlap with the vibratory acoustic device.

20. The panel bottom assembly according to claim 19, wherein, The heat sink at least partially overlaps with the vibratory acoustic device.

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