Display device and method for manufacturing a display device

Abstract

The present application relates to a display apparatus and a method for manufacturing a display apparatus. A display apparatus is disclosed, the display apparatus including a display panel including a front portion, a curved portion, and a pad portion curved from the curved portion and positioned below the front portion; a first plate disposed between the front portion and the pad portion and disposed below the front portion; and a second plate disposed between the front portion and the pad portion and disposed on a top surface of the pad portion, wherein the first plate includes a porous member, wherein the second plate includes a transparent region.

Description

TECHNICAL FIELD

[0001] The disclosure relates to a display apparatus and a method for manufacturing a display apparatus in which whether a flexible circuit board and a display panel are electrically connected to each other can be easily identified, thereby improving productivity. BACKGROUND

[0002] Display apparatuses are implemented in various forms such as televisions, monitors, smartphones, tablet PCs, laptop computers, and wearable devices.

[0003] In general, a display apparatus includes a display area for displaying a screen and a non-display area formed along an outer edge of the display area.

[0004] In a display apparatus, the non-display area is also referred to as a bezel area. When the bezel area is thick, a user's gaze is dispersed. When the bezel area is thin, the user's gaze can be fixed on a screen of the display area, and thus immersion can be increased.

[0005] In other words, when the bezel area is thinned, the overall size of the display apparatus can be reduced while increasing the user's immersion. Accordingly, a demand from consumers for a display apparatus having a bezel area that is as small as possible is increasing. SUMMARY

[0006] As the demand for display apparatuses important to portability increases, a demand for developing a thinner display apparatus having strong rigidity is also increasing.

[0007] For example, when a display apparatus falls from a high place, strong rigidity against an instantaneous impact applied thereto can be required.

[0008] In one example, the instantaneous impact rigidity can be measured using a ball drop test in which an iron ball is freely dropped from a predetermined height to a display apparatus. Accordingly, rigidity corresponding to an instantaneous impact of a display apparatus can be measured based on the measured instantaneous impact rigidity.

[0009] In addition, in order to increase the portability of a display apparatus, it can be necessary to reduce the overall thickness of the display apparatus and to reduce the bezel area.

[0010] The display apparatus can include a display panel implementing a display screen and a flexible circuit board on which a circuit for applying various signals to the display panel is mounted or connected.

[0011] The flexible circuit board can be fixedly connected to a distal end of the display panel.

[0012] For example, a conductive adhesive such as an ACF (anisotropic conductive film) including conductive balls can be interposed between the flexible circuit board and the display panel, and then heat and pressure can be applied to the adhesive to cure the conductive adhesive so that the flexible circuit board and the display panel can be electrically connected to each other.

[0013] In this case, when the conductive balls included in the anisotropic conductive film are pressed, an indentation can occur between the flexible circuit board and the display panel.

[0014] When the indentation occurs, it can be determined that the electrical connection between the flexible circuit board and the display panel is normally established.

[0015] However, when the flexible circuit board and the display panel are not properly aligned with each other and are not fixed to each other and thus the conductive balls are not properly pressed, the indentation can not occur between the flexible circuit board and the display panel.

[0016] When the indentation does not occur in this way, it can be determined that the electrical connection between the flexible circuit board and the display panel is not properly made.

[0017] Therefore, it can be identified whether the electrical connection between the flexible circuit board and the display panel is normally made based on whether the indentation occurs or does not occur between the flexible circuit board and the display panel.

[0018] The state in which the indentation does not occur between the flexible circuit board and the display panel means that the electrical connection therebetween is not normally made. Therefore, when the indentation does not occur, various signals can not be properly transmitted to the display panel through the flexible circuit board, which can result in a defect of the display apparatus.

[0019] The indentation can be identified on the back of the other face which is the other face of the face of the display panel contacted by the flexible circuit board.

[0020] However, when the display panel is made of a non-transparent material, or when a member made of a non-transparent material is disposed under the display panel, it is difficult to identify whether the indentation has occurred on the back of the display panel.

[0021] Therefore, the inventors of the present disclosure have invented a display apparatus and a method for manufacturing the same in which it can be easily identified whether a flexible circuit board and a display panel are electrically connected to each other, while the apparatus has strong rigidity and is more slim.

[0022] It is an object according to one embodiment of the present disclosure to provide a display apparatus and a method for manufacturing the same in which it can be easily identified whether a circuit board and a display panel are electrically connected to each other, thereby improving productivity.

[0023] Another object according to an embodiment of the disclosure is to provide a display device that is slimmer and has strong rigidity and a method for manufacturing the display device.

[0024] The objects of the disclosure are not limited to the above-mentioned objects. Other objects and advantages of the disclosure not mentioned above can be understood based on the following description, and can be more clearly understood based on embodiments of the disclosure. Furthermore, it will be easily understood that the objects and advantages of the disclosure can be achieved using the means shown in the claims and combinations thereof.

[0025] One aspect of the disclosure provides a display device including a display panel including a front portion, a curved portion, and a pad portion curved from the curved portion and positioned below the front portion; a first plate disposed between the front portion and the pad portion and disposed below the front portion; and a second plate disposed between the front portion and the pad portion and disposed on a top surface of the pad portion, wherein the first plate includes a porous member, wherein the second plate includes a transparent region.

[0026] Another aspect of the disclosure provides a method for manufacturing a display device, the method including the steps of: providing a display panel; positioning a first plate and a second plate having different regions on a back surface of the display panel, wherein the second plate includes a transparent region; forming a gap between the first plate and the second plate; connecting a flexible circuit board to a distal end of a top surface of the display panel such that the flexible circuit board is vertically and at least partially overlapped with the transparent region of the second plate; and bending the second plate from the gap toward the back surface of the display panel such that the second plate is positioned below the first plate.

[0027] Another aspect of the disclosure provides a display device including a display panel including a first portion for displaying an image and a second portion having a driver circuit, wherein at least a portion of the display panel is curved such that the second portion is positioned below the first portion; a first plate disposed below the first portion of the display panel; a second plate disposed below the first plate and on a top surface of the second portion of the display panel, wherein at least a portion of the second plate is transparent; and a circuit board attached to a bottom surface of the second portion of the display panel, wherein the circuit board is overlapped with the transparent portion of the second plate.

[0028] According to embodiments of the present disclosure, the device includes a second plate including a transparent region on a portion of a back surface of the display panel corresponding to a distal end of a top surface of the display panel to which the flexible circuit board is connected. Accordingly, a process operator can easily identify whether a press mark has occurred in an overlapping region of the flexible circuit board and the display panel through the transparent region of the second plate.

[0029] Accordingly, a process operator can easily identify whether a flexible circuit board and a display panel are electrically connected to each other based on the occurrence or non-occurrence of a press mark, thereby improving productivity and reducing the occurrence of defects in a display device due to connection defects.

[0030] Further, according to embodiments of the present disclosure, the first plate including the porous member can be disposed on a back surface of the display panel. The second plate spaced apart from the first plate and including the transparent region can be disposed thereon. Accordingly, the porous member can increase the impact stiffness of the display device. A slim display device can be implemented by applying various embodiments of the second plate formed separately from the first plate.

[0031] Effects of the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0032] FIG. 1A and FIG. 1C respectively show a front surface and a back surface of a display device according to embodiments of the present disclosure, and FIG. 1B shows a back surface of a display device with a case removed.

[0033] FIG. 2 is a cross-sectional view of a display device according to embodiments of the present disclosure in an I-I' direction.

[0034] FIG. 3 is a magnified cross-sectional view of a porous member according to embodiments of the present disclosure.

[0035] FIG. 4 to FIG. 7 is a process diagram of a method for manufacturing a display device according to embodiments of the present disclosure.

[0036] FIG. 8A and FIG. 8B are cross-sectional views of display devices according to various embodiments of the present disclosure.

[0037] FIG. 9 to FIG. 12 is a process diagram of a method for manufacturing a display device according to another embodiment of the present disclosure.

[0038] FIG. 13A and FIG. 13Bis a cross-sectional view of a display apparatus according to various embodiments of the disclosure.

[0039] FIG. 14 to FIG. 16 is a process diagram of a method for manufacturing a display apparatus according to still another embodiment of the disclosure.

[0040] FIG. 17 to FIG. 19 is a process diagram of a method for manufacturing a display apparatus according to still another embodiment of the disclosure. DETAILED DESCRIPTION

[0041] Advantages and features of the present disclosure and methods for accomplishing the same can be understood more readily by reference to the following detailed description of embodiments. The present disclosure may, however, be embodied in various different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the disclosure to those skilled in the art, and no limitation of the scope of the disclosure is intended by reference to the specific details set forth herein.

[0042] The shapes, sizes, ratios, angles, numbers, and the like disclosed in the drawings for describing embodiments of the present disclosure are exemplary and the present disclosure is not limited thereto. The same reference numbers in this document refer to the same elements. Further, the explanation and details of known steps and elements are omitted for convenience of description. Furthermore, in the following detailed description of the present disclosure, for the purpose of providing a thorough understanding of the present disclosure, numerous specific details are set forth. It is, however, understood that the present disclosure can be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present disclosure.

[0043] The terms used herein are merely for the purpose of describing particular embodiments and are not intended to limit the present disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "have," "has" or "having" when used herein, specify the presence of stated features, integers, operations, elements, or components, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Expressions such as "at least one of," when preceding a list of elements, can modify the entire list of elements and can not modify the individual elements of the list. In interpreting numerical values, errors or tolerances can occur even when there is no explicit description of the numerical values.

[0044] In addition, it will also be understood that, when a first element or layer is referred to as being "on" or "over" a second element or layer, the first element can be directly on the second element or layer, or intervening elements or layers can be present. In addition, it will also be understood that when a first element or layer is referred to as being "between" two elements or layers, it can be the only element or layer between the two elements or layers, or one or more intervening elements or layers can also be present.

[0045] Furthermore, as used herein, when a layer, film, region, plate, etc. can be "on" or "over" another layer, film, region, plate, etc., the former can be in direct contact with the latter, or intervening layers, films, regions, plates, etc. can be present between the former and the latter. As used herein, when a layer, film, region, plate, etc. is "directly on" or "directly over" another layer, film, region, plate, etc., the former can be in direct contact with the latter, and no intervening layers, films, regions, plates, etc. are present between the former and the latter. Furthermore, as used herein, when a layer, film, region, plate, etc. can be "under" or "beneath" another layer, film, region, plate, etc., the former can be in direct contact with the latter, or intervening layers, films, regions, plates, etc. can be present between the former and the latter. As used herein, when a layer, film, region, plate, etc. is "directly under" or "directly beneath" another layer, film, region, plate, etc., the former is in direct contact with the latter, and no intervening layers, films, regions, plates, etc. are present between the former and the latter.

[0046] In describing a temporal relationship (e.g., a temporal sequence between two events such as "after," "subsequently," "before," etc.), unless indicated as "immediately after," "immediately subsequent to," or "immediately before," another event can occur between them.

[0047] It is to be understood that the terms "first," "second," "third," etc. can be used herein to describe various elements, components, regions, layers and / or sections but do not to be construed as limiting terms. Such terms can be used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section described below could be termed a second element, component, region, layer or section without departing from the spirit and scope of the present disclosure.

[0048] Features of various embodiments of the present disclosure can be partially or wholly combined with each other and can be technically interrelated or operable to each other. Embodiments can be implemented independently of each other and can be collectively implemented in a related manner.

[0049] In explaining numerical values, even if a separate explicit description is not made, the value is explained to include an error range.

[0050] It is to be understood that when a certain element or layer is referred to as being "connected to" or "coupled to" another element or layer, it can be directly located, connected, or coupled to the other element or layer, or one or more intervening elements or layers can exist. In addition, it will also be understood that when a certain element or layer is referred to as being "between" two elements or layers, it can be the only element or layer between the two elements or layers, or one or more intervening elements or layers can also exist.

[0051] Features of various embodiments of the present disclosure can be partially or wholly combined with each other and can be technically interrelated or operable to each other. Embodiments can be implemented independently of each other and can be collectively implemented in a related manner.

[0052] Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concept belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0053] The display apparatus according to the present disclosure can be applied to an organic light emitting display apparatus. The present disclosure is not limited thereto. The display apparatus according to the present disclosure can be applied to various display apparatuses such as a micro LED display apparatus or a quantum dot display apparatus.

[0054] Hereinafter, a display apparatus according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0055] FIG. 1A and FIG. 1C The front surface and the rear surface of the display apparatus according to an embodiment of the present disclosure are respectively illustrated, and FIG. 1B The rear surface of the display apparatus with a casing removed is illustrated.

[0056] As used herein, each of a forward direction and an upward direction can represent a Z-axis direction, and each of a rearward direction and a downward direction can represent a -Z-axis direction.

[0057] The display device 1 can include a cover member 20 and a display panel 100 attached to a bottom of the cover member 20. A direction from a top of the cover member to a bottom thereof can refer to a downward direction (-Z axis direction).

[0058] The cover member 20 can be disposed to constitute a front portion of the display device 1 to protect the display device 1 from external impact.

[0059] An edge portion of the cover member 20 can have a bent or curved portion bent or curved toward a back of the display device 1.

[0060] Since the cover member 20 can be disposed to cover a side of the display panel 100 of the display device 1, the member 20 can protect the display panel 100 not only from external impact on a front of the display device 1 but also from external impact on a side of the display device 1.

[0061] The cover member 20 can overlap a display area AA of the display panel displaying an image. For example, the cover member 20 can be made of a transparent plastic material through which an image can be transmitted, or can be made of a cover glass of a transparent glass material. The present disclosure is not limited thereto.

[0062] A housing 40 for supporting the cover member 20 can be disposed on a back of the display device 1.

[0063] The housing 40 can serve as a case protecting a rear surface of the display device 1 and can serve as a case constituting an outermost case layer of the display device 1.

[0064] The housing 40 can be made of various materials such as plastic, metal, or glass.

[0065] An intermediate frame 30 can be additionally disposed between the cover member 20 and the housing 40.

[0066] The intermediate frame 30 can accommodate the display panel 100 therein. One side of the intermediate frame 30 can contact the cover member 20 so that the intermediate frame supports the cover member 20.

[0067] The intermediate frame 30 can serve as a case protecting a rear surface and a side surface of the display panel 100.

[0068] The intermediate frame 30 can have a structure for accommodating the display panel 100 therein and an additional component such as a battery disposed on a back of the display panel 100 to supply power to the display device 1. There is no particular limitation on its structure.

[0069] For example, the middle frame 30 can have a structure in which the middle frame covers a back or a side of the display panel 100 so that the display panel 100 can be accommodated in a portion of the middle frame 30 and an additional component such as a battery can be accommodated in another portion of the middle frame 30.

[0070] Further, the middle frame 30 can be formed to cover a portion of a back of the display panel 100 so that areas are not divided via the middle frame 30 and the display panel 100 and an additional component such as a battery are accommodated in the middle frame 30 so that the display panel 100 and the additional component contact each other.

[0071] The front portion FP of the display panel 100 can be disposed on a bottom surface of the cover member 20.

[0072] The front portion FP can include a pixel array including a plurality of pixels having a plurality of light emitting elements and a driving transistor and a signal line that transmits a driving signal to the pixels, so that an image can be displayed from the front portion.

[0073] The front portion FP can include a display area AA (display area) that displays an image and a non-display area NA (non-display area) other than the display area AA. The non-display area NA can be formed as an edge area surrounding the display area AA.

[0074] The display area AA and the non-display area NA can be equally applied to the cover member 20.

[0075] An area of the cover member 20 through which an image is transmitted can be a display area AA of the cover member 20.

[0076] An area of the cover member 20 surrounding the display area AA and through which an image is not transmitted can be a non-display area NA of the cover member 20.

[0077] The non-display area NA can be defined as a bezel area.

[0078] The display panel 100 disposed below the cover member 20 can include a bent portion extending from one side of the front portion FP thereof and bent downward.

[0079] The bent portion can be located at an outermost portion of the display panel 100, and thus can be easily exposed to an external impact. When an impact is applied to the bent portion, the bent portion is easily deformed or broken. Accordingly, a support member or a reinforcing member for protecting the bent portion can be added to absorb the impact.

[0080] Hereinafter, a structure of the display apparatus 1 according to an embodiment of the disclosure will be described.

[0081] FIG. 2is a cross-sectional view taken along a line I-I' of the display apparatus 1 according to an embodiment of the disclosure.

[0082] The display apparatus 1 can include a cover member 20 as a topmost portion and a display panel 100 disposed below the cover member 20.

[0083] The display apparatus 1 can include the display panel 100 having a front portion FP, a bending portion BND, and a pad portion PAD bent from the bending portion BND to be located on a rear surface of the front portion FP, a first plate 210 disposed between the front portion FP and the pad portion PAD and disposed below the front portion FP, and a second plate 220 disposed between the front portion FP and the pad portion PAD and disposed on a top surface of the pad portion PAD.

[0084] The second connecting member 400 as a connecting member can be disposed between the first plate 210 and the second plate 220 to fix the first plate 210 and the second plate 220 to each other.

[0085] The first connecting member 150 can be disposed between the cover member 20 and the display panel 100.

[0086] The first connecting member 150 can connect or couple the cover member 20 and the display panel 100 to each other.

[0087] For example, the first connecting member 150 can function as a fixing member. The disclosure is not limited to this term.

[0088] Since the first connecting member 150 can be disposed to be perpendicularly overlapped with the display area AA, the member 150 can be made of a material through which an image of the display panel 100 is transmittable.

[0089] For example, the first connecting member 150 can be made of or can include a material such as OCA (optical clear adhesive), OCR (optical clear resin), or PSA (pressure sensitive adhesive). However, the disclosure is not limited thereto.

[0090] The display panel 100 disposed below the cover member 20 can include the front portion FP, the bending portion BND, and the pad portion PAD constituting the display substrate 110.

[0091] The front portion FP of the display panel 100 can be disposed below the first connecting member 150. For example, the front portion FP can be a portion in which an image is displayed. The front portion can include the display substrate 110, the pixel array 120, and the encapsulation portion 130.

[0092] In addition, the polarization plate 140 can be disposed on a top surface of the encapsulation portion 130 of the display panel 100.

[0093] The bending portion BND of the display panel 100 can extend from a side of the front portion FP and be bent downward (in the -Z axis direction) and then horizontally (in the Y axis direction). The bending portion BND can include the display substrate 110 and the signal line.

[0094] The pad portion PAD of the display panel 100 can extend from the bending portion BND and be disposed under the front portion FP.

[0095] The pad portion PAD can include the display substrate 110, the signal line, and a pad electrode connected to the signal line. The driving circuit 160 or the flexible circuit board 500 for driving the pixels can be mounted on the pad electrode.

[0096] The polarization plate 140 can be disposed on a top surface of the front portion FP, and thus can be disposed on a top surface of the display panel 100. In addition, one or more functional layers, such as a functional layer for improving display performance of the display apparatus, can be further disposed between the first connection member 150 and the polarization plate 140 or under the polarization plate 140.

[0097] The polarization plate 140 prevents reflection of external light and improves outdoor visibility and contrast of an image displayed on the display panel 100.

[0098] The display panel 100 can include a display substrate 110, a pixel array 120 disposed on the display substrate 110, and an encapsulation portion 130 disposed to cover the pixel array 120.

[0099] A portion of the display substrate 110 can constitute a bottom of the display panel 100.

[0100] The display substrate 110 can constitute the front portion FP, the bending portion BND, and the pad portion PAD.

[0101] The display substrate 110 can be made of a flexible plastic material and can have a flexible property.

[0102] The display substrate 110 can include polyimide or can be made of a thin glass material having flexibility.

[0103] The pixel array 120 can be disposed on the display substrate 110. The pixel array 120 can display an image. An area in which the pixel array 120 can be disposed can be a display area AA.

[0104] Accordingly, a region of the cover member 20 corresponding to the pixel array 120 can be a display region AA of the cover member 20, and a region of the cover member 20 other than the display region AA can be a non-display region NA of the cover member 20.

[0105] The pixel array 120 can include light emitting elements, thin film transistors for driving the light emitting elements, and signal lines such as a gate line, a data line, and a pixel driving power line on the display substrate 110.

[0106] The pixel array 120 can include pixels that display an image based on a signal provided to the signal line. The pixel can include a light emitting element and a thin film transistor.

[0107] The light emitting element can include an anode electrode electrically connected to the thin film transistor, a light emitting layer formed on the anode electrode, and a cathode electrode for providing a common voltage.

[0108] The thin film transistor can include a gate electrode, a semiconductor layer, a source electrode, and a drain electrode. The semiconductor layer of the thin film transistor can include silicon such as a-Si, poly-Si, or low-temperature poly-Si, or an oxide such as IGZO (indium gallium zinc oxide). The present disclosure is not limited thereto.

[0109] The anode electrode can be disposed in each pixel region in a manner corresponding to an opening region defined by a pattern shape according to the pixel, and can be electrically connected to the thin film transistor.

[0110] The light emitting element can include a light emitting layer formed between the anode electrode and the cathode electrode. The light emitting element can be implemented to emit light of the same color such as white for each pixel, or to emit light of different colors such as red, green, or blue for each pixel. The present disclosure is not limited thereto. For example, the light emitting element can be implemented to emit light of different colors such as a combination of red, green, blue, or white or cyan, magenta, or yellow, or other colors for each pixel.

[0111] The encapsulation part 130 can be disposed on the display substrate 110 to cover the pixel array 120.

[0112] The encapsulation part 130 can prevent oxygen, moisture, or foreign substances from intruding into the light emitting layer of the pixel array 120. For example, the encapsulation part 130 can be formed in a multi-layer structure in which an organic material layer and an inorganic material layer are alternately laminated. The present disclosure is not limited thereto.

[0113] The front portion FP of the display panel 100 can include the display substrate 110, the pixel array 120, and the encapsulation part 130. The front portion can be formed in a flat manner, or the front portion can be formed in a flat manner except for an edge portion of the front portion.

[0114] The first plate 210 can be connected or coupled to the back of the front portion FP so as to maintain the flat state of the front portion FP.

[0115] The bending portion BND of the display panel 100 can be devoid of the pixel array 120, the encapsulation portion 130, and the first plate 210, and can include the display substrate 110. The bending portion BND can be a portion that can be easily bent in a direction desired by a user.

[0116] The pad portion PAD of the display panel 100 can be devoid of the pixel array 120 and the encapsulation portion 130.

[0117] The second plate 220 can be connected or coupled to the back of the pad portion PAD so that the pad portion PAD can be maintained in a flat state.

[0118] Accordingly, the front portion FP of the display panel 100 can be disposed in the area of the display screen, and the pad portion PAD can be bent horizontally inward from the bending portion BND and can be disposed under the front portion FP, i.e., on the back of the front portion FP.

[0119] The first plate 210 disposed under the front portion FP of the display panel 100 and the second plate 220 disposed above the pad portion PAD can maintain the front portion FP in a flat state while supplementing the rigidity of the display substrate 110.

[0120] Each of the first plate 210 and the second plate 220 can be formed to have a certain strength and thickness to supplement the rigidity of the display substrate 110, and can not be formed in a bending portion area where the bending portion BND is located.

[0121] Based on the shape of the display panel 100 before being bent, the first plate 210 and the second plate 220 can be disposed under the display substrate 110 and spaced apart from each other.

[0122] Based on the shape of the display panel 100 after being bent, the first plate 210 can be disposed under the front portion FP, and the second plate 220 can be disposed on the top surface of the pad portion PAD.

[0123] The first plate 210 can include a porous member 300. The porous member 300 can be a metal foam.

[0124] Since the porous member 300 can serve as a buffer layer of the first plate 210, an impact on various portions that can come into contact with the buffer plate 300 can be reduced.

[0125] The porous member 300 having an impact reduction function can enhance the rigidity of the first plate 210.

[0126] Referring toFIG. 3 The porous member 300 can be a porous metal structure including the electrically conductive metal 310 and a plurality of pores 320 inside the electrically conductive metal 310.

[0127] Since the electrically conductive metal 310 of the porous member 300 is made of a metal having high thermal conductivity, the porous member 300 itself can provide an excellent heat dissipation function. Since the porous member 300 has a metal structure in which a plurality of pores 320 are formed, the porous member 300 can provide an excellent cushioning function.

[0128] Further, since the porous member 300 includes a plurality of pores 320 inside the electrically conductive metal 310 and can increase the total surface area thereof, the porous member 300 itself can provide an excellent heat dissipation function.

[0129] As an example, the porous member 300 can be formed by the following manufacturing method. The present disclosure is not limited thereto.

[0130] The porous member 300 can be formed by sintering a metal foam precursor containing a metal powder.

[0131] The metal foam precursor refers to a structure before a process performed for forming the porous member 300, such as sintering.

[0132] For example, a slurry containing a metal powder, a dispersant, and a binder can be used to form the metal foam precursor.

[0133] The metal powder can be a metal powder in which one or more metal powders selected from the group consisting of copper powder, nickel powder, iron powder, SUS powder, molybdenum powder, silver powder, platinum powder, gold powder, aluminum powder, chromium powder, indium powder, tin powder, magnesium powder, phosphorus powder, zinc powder, and manganese powder are mixed, or a powder of an alloy of one or more metals, but is not limited thereto.

[0134] The dispersant can be, for example, an alcohol, but is not limited thereto.

[0135] In this case, the alcohol can use a monohydric alcohol, a dihydric alcohol, or a polyhydric alcohol, the monohydric alcohol having 1 to 20 carbon atoms, such as methanol, ethanol, propanol, pentanol, octanol, ethylene glycol, propylene glycol, pentanol, 2-methoxyethanol, 2-ethoxyethanol, 2-butoxyethanol, glycerol, texanol, or terpineol, the dihydric alcohol having 1 to 20 carbon atoms, such as ethylene glycol, propylene glycol, hexylene glycol, octylene glycol, or pentylene glycol, or the polyhydric alcohol, but can not be limited thereto.

[0136] The type of the binder can not be particularly limited and can be selected based on the type of the metal component or the dispersant used when preparing the slurry.

[0137] For example, the binder can use an alkyl cellulose having an alkyl group containing 1 to 8 carbon atoms (e.g., methyl cellulose or ethyl cellulose), a polyalkylene carbonate having an alkylene unit containing 1 to 8 carbon atoms (e.g., polypropylene carbonate or polyethylene carbonate), or a polyvinyl alcohol-based binder (e.g., polyvinyl alcohol or polyvinyl acetate), but can not be limited thereto.

[0138] After forming the slurry containing the metal powder, the dispersant, and the binder as described above, the slurry can be injected into a mold having a predetermined shape or coated on a substrate to form a metal foam precursor.

[0139] The metal foam precursor thus formed can be formed into a porous member 300 through a sintering process.

[0140] In this case, the conditions of the sintering process are not particularly limited, as long as the sintering process is performed at a temperature and time level at which the solvent contained in the slurry can be removed to a desired level. For example, the sintering can be performed for a predetermined time in a temperature range of about 50℃ to 250℃, but can not be limited thereto.

[0141] The second plate 220 can include a transparent material. At least a portion of an area thereof can be formed as a transparent area. The present disclosure is not limited thereto. The second plate 220 can further include an opaque material or a translucent material.

[0142] For example, the second plate 220 can include at least one of polyethylene terephthalate (PET), polyimide (PI), and polyethylene naphthalate (PEN). The present disclosure is not limited thereto.

[0143] The first plate 210 and the second plate 220 can be formed to have substantially the same thickness, but the present disclosure is not limited thereto.

[0144] The second connection member 400 and the second plate 220 can be disposed below the first plate 210.

[0145] The second plate 220 can be disposed below the second connection member 400.

[0146] To place the second plate 220, the second plate 220 can be first attached to the back of the pad portion PAD, the bending portion BND can be bent, and the second plate 220 can be attached and fixed to the bottom of the second connection member 400.

[0147] The second plate 220 can be disposed on the pad portion PAD in a state in which the second plate 220 is fixed to the second connection member 400.

[0148] The second connection member 400 can be disposed between the first plate 210 and the second plate 220.

[0149] When the pad portion PAD of the display panel 100 is bent from the bent portion BND to be disposed under the front portion FP of the display panel 100, a restoring force for restoring the display panel 100 to a state before bending can be strong.

[0150] When the restoring force is strong, the pad portion PAD of the bent display panel 100 can not be fixed but can be lifted up.

[0151] The second connection member 400 can function as a fixing member that fixes the bent display panel 100 so that the display panel can maintain its bent state.

[0152] The second connection member 400 can be formed to have a certain thickness in a thickness direction, thereby maintaining a constant curvature of the bent portion BND.

[0153] The second connection member 400 can be implemented as a double-sided tape having an adhesive strength that can fix the second plate 220 and the first plate 210 to each other. The disclosure is not limited thereto.

[0154] For example, the second connection member 400 can include a base layer 410 and first and second adhesive layers 411 and 412 formed on both opposite faces of the base layer 410, respectively.

[0155] Accordingly, the second connection member 400 can be fixed to the first plate 210 via the first adhesive layer 411 and to the second plate 220 via the second adhesive layer 412.

[0156] The base layer 410 can function as a support layer capable of maintaining a shape of the second connection member 400.

[0157] Each of the first and second adhesive layers 411 and 412 can include a transparent and adhesive material. For example, each of the first and second adhesive layers 411 and 412 can be made of or include a material such as OCA (optical clear adhesive), OCR (optical clear resin), or PSA (pressure sensitive adhesive). The disclosure is not limited thereto. Each of the first and second adhesive layers 411 and 412 can further include an opaque material or a translucent material.

[0158] Alternatively, the second connection member 400 can be constituted of a foam tape or a foam pad having an adhesive force, and thus can further have an effect of reducing an impact.

[0159] The reinforcing member 600 can be disposed on a top face or a bottom face of the bent portion BND of the display panel 100.

[0160] The reinforcing member 600 can cover the bending portion BND and can extend to cover at least a partial area of each of the front portion FP and the pad portion PAD.

[0161] The reinforcing member 600 can include a resin. For example, the reinforcing member 600 can include a UV-cured acrylic resin. The present disclosure is not limited thereto.

[0162] Since the reinforcing member 600 can cover various signal lines disposed between the encapsulation portion 130 and the pad portion PAD of the display panel 100, the member 600 can prevent moisture from invading into the signal lines while protecting the signal lines from external impact.

[0163] To increase the flexibility of the display panel 100, the bending portion BND can have no other components other than the display substrate 110 and the signal lines. Accordingly, the reinforcing member 600 can complement the rigidity of the bending portion BND in which other components are not present.

[0164] In one example, the driver circuit 160 can be disposed on another face of the pad portion PAD of the display panel 100 on which the second board 220 can be disposed.

[0165] The driver circuit 160 can be disposed in the form of a chip on plastic (COP) mounted on the display substrate 110. However, the present disclosure is not limited thereto.

[0166] The driver circuit 160 can generate data signals and gate control signals based on image data and timing synchronization signals provided from an external host driving system.

[0167] The driver circuit 160 can provide data signals to data lines of each pixel via display pads, and can provide gate control signals to gate driver circuits via display pads.

[0168] The driver circuit 160 can be mounted in a chip mounting area defined in the display substrate 110, and can be electrically connected to display pads, and can be connected to signal lines of the gate driver circuits and the pixel array 120 disposed on the display substrate 110.

[0169] The display pads can be disposed at a distal end of the display substrate 110 on which the driver circuit 160 is mounted.

[0170] The display pads can be disposed on one face of the display substrate 110 and electrically connected to the flexible circuit board 500 on which the circuit board is mounted.

[0171] The flexible circuit board 500 can be electrically connected to display pads provided on a distal end of the display substrate 110 via a film attachment process using a conductive adhesive layer, and the flexible circuit board 500 can be located on a back surface of the display panel 100.

[0172] One example of a material of the conductive adhesive layer can include an anisotropic conductive film (ACF).

[0173] The circuit board can provide image data and a timing synchronization signal provided from a host driving system to the driver circuit 160, and can provide a voltage required to drive each of the pixel array 120 and the gate driver circuit and the driver circuit 160.

[0174] FIG. 4 to FIG. 7 is a process map of a method for manufacturing a display apparatus according to an embodiment of the disclosure.

[0175] In FIG. 4 to FIG. 7 , (a) is a back surface view of a process map of a method for manufacturing a display apparatus, and (b) is a sectional view thereof.

[0176] Referring to FIG. 4 , in (a) and (b) of , the polarizing plate 140 can be formed on a top surface which is one face of the display panel 100, and the first plate 210 and the second plate 220 can be formed on a bottom surface which is the other face of the display panel 100.

[0177] The first plate 210 and the second plate 220 can be formed to be spaced apart from each other such that a space 101 is defined between the first plate 210 and the second plate 220.

[0178] The first plate 210 can be disposed to be perpendicularly overlapped with the polarizing plate 140, and the second plate 220 can be disposed not to be perpendicularly overlapped with the polarizing plate 140.

[0179] The first plate 210 can be disposed to be perpendicularly overlapped with the polarizing plate 140, and can have an area substantially corresponding to the display area.

[0180] Accordingly, the first plate 210 and the second plate 220 can have different areas. The first plate 210 can be formed to have an area greater than that of the second plate 220.

[0181] The first plate 210 and the second plate 220 can be formed in the same layer based on the other face of the display panel 100.

[0182] The first plate 210 and the second plate 220 can be fixed to the other face of the display panel 100 via an adhesive layer as a separate adhesive member.

[0183] The first plate 210 can include a porous member 300 including a conductive metal 310 and a plurality of holes 320 inside the conductive metal 310 to increase the rigidity of the display apparatus 1.

[0184] The second plate 220 can include a transparent material. The entire area thereof can be formed as a transparent area.

[0185] For example, the second plate 220 can include one or more of polyethylene terephthalate (PET), polyimide (PI), and polyethylene naphthalate (PEN). The present disclosure is not limited thereto.

[0186] Referring to FIG. 5 In (a) and (b) of FIG. 10, the flexible circuit board 500 can be electrically connected to and fixed to the display panel 100 at a distal end of the top surface of the one face of the display panel 100 as the other face of the display panel 100 on which the second plate 220 is disposed.

[0187] For example, a conductive adhesive such as an ACF (anisotropic conductive film) including conductive balls can be interposed between the flexible circuit board 500 and the display panel 100, and then heat and pressure can be applied to the adhesive to cure the conductive adhesive so that the flexible circuit board and the display panel can be electrically connected to each other.

[0188] In this case, when the conductive balls included in the anisotropic conductive film are pressed, an indentation can occur between the flexible circuit board and the display panel. Accordingly, one or more indentations can be formed at the interface between the portion of the second plate 220 to which the flexible circuit board 500 is attached and the flexible circuit board 500.

[0189] When the indentation occurs, it can be determined that the electrical connection between the flexible circuit board 500 and the display panel 100 is normally established.

[0190] According to an embodiment of the present disclosure, the second plate 220 includes a transparent material so that the entire area of the second plate 220 can be a transparent area.

[0191] Accordingly, the overlapping area 510 between the flexible circuit board 500 and the display panel 100 can be identified from a position below the second plate 220 through the second plate 220. Whether an indentation occurs in the overlapping area 510 can be easily identified.

[0192] Accordingly, according to an embodiment of the disclosure, the second plate 220 including the transparent region is disposed on a portion of the back surface of the display panel 100 corresponding to a distal end of the flexible circuit board 500 connected to the top surface of the display panel 100. Accordingly, a process operator can easily identify whether a press mark has occurred in an overlapping region of the flexible circuit board 500 and the display panel 100 through the transparent region of the second plate 220.

[0193] Accordingly, a process operator can easily identify whether the flexible circuit board 500 and the display panel 100 are electrically connected to each other based on the occurrence or nonoccurrence of a press mark, thereby improving productivity and reducing the occurrence of defects in the display device 1 due to connection defects.

[0194] Referring to (a) and (b) of FIG. 10, FIG. 6 The second connecting member 400 can be formed on the back surface of the first plate 210.

[0195] The second connecting member 400 can include a base layer 410 and first and second adhesive layers 411 and 412 formed on two opposite surfaces of the base layer 410, respectively.

[0196] The second connecting member 400 can be fixed to the first plate 210 via the first adhesive layer 411.

[0197] The second connecting member 400 can be disposed at a position overlapping the second plate 220 disposed on the back surface of the display panel 100 when the display panel 100 is bent.

[0198] Referring to (a) and (b) of FIG. 10, FIG. 7 The second plate 220 can be disposed under the second connecting member 400 by bending the display panel 100 from the gap 101 of the display panel 100 toward the back surface of the display panel 100.

[0199] The second plate 220 can be fixed to the second connecting member 400 via the second adhesive layer 412 of the second connecting member 400.

[0200] Accordingly, the display device 1 can include a display panel 100 having a front portion FP, a bent portion BND, and a pad portion PAD bent from the bent portion BND to be positioned on a back surface of the front portion FP, a first plate 210 disposed between the front portion FP and the pad portion PAD and disposed under the front portion FP, and a second plate 220 disposed between the front portion FP and the pad portion PAD and disposed on a top surface of the pad portion PAD and including a transparent region.

[0201] The flexible circuit board 500 can be connected to a distal end of the bottom of the pad portion PAD of the display panel 100, and the flexible circuit board 500 can be disposed to be vertically overlapped with the second plate 220 including the transparent area.

[0202] FIG. 8A and FIG. 8B is a cross-sectional view of a display apparatus according to various embodiments of the disclosure.

[0203] FIG. 8A shows FIG. 7 an embodiment in which the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure shown in (b) is further reduced. FIG. 8B shows FIG. 7 an embodiment in which the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure shown in (b) is further increased.

[0204] As in the embodiments shown in FIG. 8A and FIG. 8B , the thickness of the second plate 220 can be controlled so that the total thickness of the display apparatus 1 can be easily adjusted. Thus, a more slim display apparatus 1 can be easily implemented.

[0205] Further, when the thickness of the second plate 220 is adjusted, the size of the bending portion BND can be adjusted so that a display apparatus 1 having a reduced bezel area can be easily implemented.

[0206] As such, according to the embodiments of the disclosure, the thicknesses of the first plate 210 and the second plate 220 can be different, and the thickness of the second plate 220 can be adjusted so that a display apparatus 1 having a device thickness and a bezel area thickness desired by a user can be easily implemented.

[0207] FIG. 9 to FIG. 12 is a process diagram of a method for manufacturing a display apparatus according to another embodiment of the disclosure. Differences from the method for manufacturing a display apparatus according to the embodiment of the disclosure described with reference to FIG. 4 to FIG. 7 will be mainly described, and the same content can be omitted.

[0208] In FIG. 9 to FIG. 12 , (a) is a back view of a process diagram of a method for manufacturing a display apparatus, and (b) is a cross-sectional view thereof.

[0209] With reference to (a) and (b) in FIG. 9 , the polarizing plate 140 can be formed on a top surface which is one face of the display panel 100, and the first plate 210 and the second plate 220 can be formed on a bottom surface which is the other face of the display panel 100.

[0210] The first plate 210 and the second plate 220 can be formed to be spaced apart from each other such that a space 101 is defined between the first plate 210 and the second plate 220.

[0211] The first plate 210 can be disposed to be vertically overlapped with the polarizing plate 140, and the second plate 220 can be disposed not to be vertically overlapped with the polarizing plate 140.

[0212] The first plate 210 can be disposed to be vertically overlapped with the polarizing plate 140, and can have an area substantially corresponding to the display area.

[0213] Accordingly, the first plate 210 and the second plate 220 can have different areas. The first plate 210 can be formed to have a larger area than that of the second plate 220.

[0214] The first plate 210 and the second plate 220 can be formed in the same layer based on the other face of the display panel 100.

[0215] The first plate 210 and the second plate 220 can be fixed to the other face of the display panel 100 via an adhesive layer as a separate adhesive member.

[0216] The first plate 210 can include a porous member 300 including a conductive metal 310 and a plurality of holes 320 located inside the conductive metal 310 to increase the rigidity of the display apparatus 1.

[0217] The second plate 220 can include a transparent area 221 and a non-transparent area 222.

[0218] The transparent area 221 and the non-transparent area 222 of the second plate 220 can be made of different materials.

[0219] The transparent area 221 of the second plate 220 can include a transparent material.

[0220] For example, a portion of the second plate 220 corresponding to the transparent area 221 can include one or more of polyethylene terephthalate (PET), polyimide (PI), and polyethylene naphthalate (PEN). The disclosure is not limited thereto.

[0221] In addition, a portion of the second plate 220 corresponding to the non-transparent area 222 can include a porous member 300 including a conductive metal 310 including a non-transparent material and a plurality of holes 320 located inside the conductive metal 310.

[0222] The transparent area 221 of the second plate 220 is closer to the outer edge of the display panel 100 than the non-transparent area 222 thereof. The transparent area 221 of the second plate 220 can be used as an outer area, and the non-transparent area 222 of the second plate 220 can be used as an inner area. The non-transparent area 222 of the second plate 220 can be formed between the transparent area 221 of the first plate 210 and the second plate 220.

[0223] Accordingly, the second plate 220 can be formed as a composite structure including both the transparent area 221 and the non-transparent area 222, and the non-transparent area 222 can include the porous member 300.

[0224] Accordingly, the display apparatus 1 according to the embodiment of the disclosure has a composite structure having the first plate 210 including the porous member 300 and the second plate 220 partially including the porous member 300. Accordingly, the total area of the device including the porous member 300 can be increased, and the rigidity of the display apparatus 1 can be further improved.

[0225] Referring to (a) and (b) of FIG. 5, FIG. 10 In this case, the flexible circuit board 500 can be electrically connected to the display panel 100 and fixed to the display panel 100 at a distal end of a top surface of the display panel 100 opposite to another surface of the display panel 100 on which the second plate 220 is placed.

[0226] In this case, the flexible circuit board 500 can be disposed to be vertically overlapped with the transparent area 221 of the second plate 220, and not to be vertically overlapped with the non-transparent area 222 of the second plate 220.

[0227] According to the embodiment of the disclosure, the second plate 220 includes the transparent area 221 made of a transparent material, and the flexible circuit board 500 can be disposed to be vertically overlapped with the transparent area 221. Accordingly, one or more indentations can be formed at the interface between the bottom surface of the display panel 100 and the flexible circuit board 500, and the overlapped area 510 between the display panel 100 and the flexible circuit board 500 can be identified from below the second plate 220 by the second plate 220. Accordingly, it can be easily identified whether the indentations have occurred in the overlapped area 510.

[0228] Accordingly, according to the embodiment of the disclosure, the second plate 220 including the transparent area 221 can be disposed on a portion of the back surface of the display panel 100 corresponding to a distal end of a top surface of the display panel 100 to which the flexible circuit board 500 is connected. Accordingly, a process operator can easily identify whether the indentations have occurred in the overlapped area of the flexible circuit board 500 and the display panel 100 through the transparent area 221 of the second plate 220.

[0229] Accordingly, the process operator can easily identify whether the flexible circuit board 500 and the display panel 100 are electrically connected to each other based on the presence or absence of the indentation, thereby improving productivity and reducing the occurrence of defects in the display device 1 due to connection defects.

[0230] Referring to (a) and (b) of FIG. FIG. 11 The second connecting member 400 can be formed on the back surface of the first plate 210.

[0231] The second connecting member 400 can include a base layer 410 and first and second adhesive layers 411 and 412 formed on two opposite surfaces of the base layer 410, respectively.

[0232] The second connecting member 400 can be fixed to the first plate 210 via the first adhesive layer 411.

[0233] The second connecting member 400 can be disposed at a position overlapping the second plate 220 disposed on the back surface of the display panel 100 when the display panel 100 is bent.

[0234] Referring to (a) and (b) of FIG. FIG. 12 By bending the display panel 100 from the gap 101 of the display panel 100 toward the back surface of the display panel 100, the second plate 220 can be disposed under the second connecting member 400.

[0235] The second plate 220 can be fixed to the second connecting member 400 via the second adhesive layer 412 of the second connecting member 400.

[0236] Accordingly, the display device 1 can include a display panel 100 having a front portion FP, a bent portion BND, and a pad portion PAD bent from the bent portion BND to be positioned on the back surface of the front portion FP, a first plate 210 disposed between the front portion FP and the pad portion PAD and disposed under the front portion FP, and a second plate 220 disposed between the front portion FP and the pad portion PAD and disposed on the top surface of the pad portion PAD and including a transparent area 221 and a non-transparent area 222.

[0237] The flexible circuit board 500 can be connected to the distal end of the bottom of the pad portion PAD of the display panel 100, and the flexible circuit board 500 can be disposed to be perpendicularly overlapped with the transparent area 221 of the second plate 220.

[0238] FIG. 13A and FIG. 13B are cross-sectional views of display devices according to various embodiments of the disclosure.

[0239] FIG. 13A shows FIG. 12(b) shows an embodiment in which the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure is further reduced. FIG. 13B (b) shows an embodiment in which the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure is further reduced. FIG. 12 (b) shows an embodiment in which the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure is further reduced.

[0240] As shown in the embodiment of (b), the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure can be further reduced. FIG. 13A As shown in the embodiment of (b), the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure can be further reduced. FIG. 13B As shown in the embodiment of (b), the thickness of the second plate 220 of the display apparatus 1 according to the embodiment of the disclosure can be further reduced.

[0241] Further, when the thickness of the second plate 220 is adjusted, the size of the bending portion BND can be adjusted so that the display apparatus 1 having a reduced bezel area can be easily implemented.

[0242] Thus, according to the embodiment of the disclosure, the thicknesses of the first plate 210 and the second plate 220 can be different, and the thickness of the second plate 220 can be adjusted so that the display apparatus 1 having a device thickness and a bezel area thickness desired by a user can be easily implemented.

[0243] FIG. 14 to FIG. 16 is a process chart of a method for manufacturing a display apparatus according to still another embodiment of the disclosure. Differences from the method for manufacturing a display apparatus according to the embodiment of the disclosure described with reference to FIG. 4 to FIG. 7 will be mainly described, and the same content can be omitted.

[0244] In (a) and (b) of FIG. 14 to FIG. 16 , (a) is a back view of a process chart of a method for manufacturing a display apparatus, and (b) is a sectional view thereof.

[0245] Referring to (a) and (b) of FIG. 14 , the polarizing plate 140 can be formed on a top surface which is one face of the display panel 100, and the first plate 210 and the second plate 220 can be formed on a bottom surface which is the other face of the display panel 100.

[0246] The first plate 210 and the second plate 220 can be formed to be spaced apart from each other so that a space 101 is defined between the first plate 210 and the second plate 220.

[0247] The first plate 210 can be disposed to be perpendicularly overlapped with the polarizing plate 140, and the second plate 220 can be disposed not to be perpendicularly overlapped with the polarizing plate 140.

[0248] The first plate 210 can be disposed to be perpendicularly overlapped with the polarizing plate 140, and can have an area substantially corresponding to the display area.

[0249] Accordingly, the first plate 210 and the second plate 220 can have different areas. The first plate 210 can be formed to have an area greater than that of the second plate 220.

[0250] The first plate 210 and the second plate 220 can be formed in the same layer based on the other face of the display panel 100.

[0251] The first plate 210 and the second plate 220 can be fixed to the other face of the display panel 100 via an adhesive layer as a separate adhesive member.

[0252] The first plate 210 can include a porous member 300 including a conductive metal 310 and a plurality of holes 320 inside the conductive metal 310 to increase the rigidity of the display device 1.

[0253] The second plate 220 can include a transparent material. The entire area thereof can be formed as a transparent area.

[0254] For example, the second plate 220 can include one or more of polyethylene terephthalate (PET), polyimide (PI), and polyethylene naphthalate (PEN). The present disclosure is not limited thereto.

[0255] In addition, a second plate adhesive layer 230 can be disposed on the bottom face of the second plate 220.

[0256] The second plate adhesive layer 230 can include an adhesive material having a transparent material. The present disclosure is not limited thereto. For example, the second plate adhesive layer 230 can include an adhesive material having an opaque or translucent material. In this case, it can be identified whether a dent occurs in the overlapping area 510 before the second plate adhesive layer 230 is formed.

[0257] For example, the adhesive material of the second plate adhesive layer 230 can include one or more of OCA (optically clear adhesive), OCR (optically clear resin), and PSA (pressure sensitive adhesive).

[0258] Accordingly, according to the embodiment of the present disclosure, both the second plate 220 and the second plate adhesive layer 230 can be made of a transparent material.

[0259] Referring to (a) and (b) in FIG. 5, FIG. 15 The flexible circuit board 500 can be electrically connected to and fixed to the display panel 100 at a distal end of the top face as the one face of the display panel 100 opposite the other face of the display panel 100 on which the second plate 220 is disposed.

[0260] In this case, the flexible circuit board 500 can be disposed to vertically and at least partially overlap the second plate 220 made of a transparent material.

[0261] According to embodiments of the present disclosure, the second plate 220 includes a transparent area. The flexible circuit board 500 can be configured to overlap the transparent area vertically and at least partially. According to embodiments of the present disclosure, the second plate 220 includes a transparent material such that the entire area of ​​the second plate 220 can be transparent. Therefore, the overlap area 510 between the flexible circuit board 500 and the display panel 100 can be identified from below the second plate 220. Whether an indentation occurs in the overlap area 510 can be easily identified.

[0262] Furthermore, the second adhesive layer 230 can be made of a transparent material. Therefore, the presence of the adhesive layer 230 does not interfere with the identification of indentations.

[0263] Therefore, according to an embodiment of this disclosure, a second plate 220 including a transparent area is disposed on the back side of the display panel 100, corresponding to the distal end of the top surface of the display panel 100 to which the flexible circuit board 500 is connected. Thus, a process operator can easily identify, through the transparent area of ​​the second plate 220, whether indentations have appeared in the overlapping area of ​​the flexible circuit board 500 and the display panel 100.

[0264] Therefore, process operators can easily identify whether the flexible circuit board 500 and the display panel 100 are electrically connected to each other based on the presence or absence of indentations, thereby improving productivity and reducing the occurrence of defects in the display device 1 due to connection defects.

[0265] Reference FIG. 16 In (a) and (b), by bending the display panel 100 from the interval 101 of the display panel 100 toward the back of the display panel 100, the second plate 220 can be positioned below the first plate 210.

[0266] The second plate 220 can be fixed to the first plate 210 via the second plate adhesive layer 230.

[0267] Therefore, the second plate 220 can directly contact the first plate 210 via the second plate adhesive layer 230.

[0268] Therefore, according to embodiments of this disclosure, the process of forming a separate adhesive connecting member for fixing the second plate 220 and the first plate 210 to each other can be omitted, thereby achieving the efficiency of the process.

[0269] Furthermore, the adhesive-bonded individual connecting member can have a structure in which an adhesive layer is formed on each of the two opposing surfaces of the base layer. According to this embodiment of the present disclosure, the second plate 220 can be used as a base layer supporting the second plate adhesive layer 230. Therefore, a separate additional base layer is not required, thereby greatly reducing the thickness of the display device 1.

[0270] Accordingly, the display apparatus 1 can include a display panel 100 having a front portion FP, a bending portion BND, and a pad portion PAD bent from the bending portion BND to be positioned on a back of the front portion FP, a first plate 210 disposed between the front portion FP and the pad portion PAD and disposed under the front portion FP, and a second plate 220 disposed between the front portion FP and the pad portion PAD and disposed on a top surface of the pad portion PAD and including a transparent area.

[0271] The flexible circuit board 500 can be connected to a distal end of a bottom of the pad portion PAD of the display panel 100, and the flexible circuit board 500 can be disposed to be vertically and at least partially overlapped with the second plate 220 including the transparent area.

[0272] FIG. 17 to FIG. 19 is a process chart of a method for manufacturing a display apparatus according to still another embodiment of the disclosure. It will be mainly described what is different from the method for manufacturing a display apparatus according to the embodiments described with reference to FIG. 4 to FIG. 7 described with reference to

[0273] In FIG. 17 to FIG. 19 , (a) is a back view of a process chart of a method for manufacturing a display apparatus, and (b) is a sectional view thereof.

[0274] Referring to FIG. 17 in (a) and (b), the polarizing plate 140 can be formed on a top surface of one face of the display panel 100, and the first plate 210 and the second plate 220 can be formed on a bottom surface of the other face of the display panel 100.

[0275] The first plate 210 and the second plate 220 can be formed to be spaced apart from each other such that a space 101 is defined between the first plate 210 and the second plate 220.

[0276] The first plate 210 can be disposed to be vertically overlapped with the polarizing plate 140, and the second plate 220 can be disposed not to be vertically overlapped with the polarizing plate 140.

[0277] The first plate 210 can be disposed to be vertically overlapped with the polarizing plate 140, and can have an area substantially corresponding to the display area.

[0278] Accordingly, the first plate 210 and the second plate 220 can have different areas. The first plate 210 can be formed to have a larger area than an area of the second plate 220.

[0279] The first plate 210 and the second plate 220 can be formed in the same layer based on the other face of the display panel 100.

[0280] The first plate 210 and the second plate 220 can be fixed to the other face of the display panel 100 via an adhesive layer as a separate adhesive member.

[0281] The first plate 210 can include a porous member 300 including a conductive metal 310 and a plurality of holes 320 located inside the conductive metal 310 to increase the rigidity of the display device 1.

[0282] The second plate 220 can include a transparent material. The entire area thereof can be formed as a transparent area.

[0283] For example, the second plate 220 can include an adhesive material having a transparent property.

[0284] For example, the adhesive material of the second plate 220 can include one or more of polyethylene terephthalate (PET), polyimide (PI), and polyethylene naphthalate (PEN). The present disclosure is not limited thereto.

[0285] In addition, the second plate 220 can be made of an elastic foam PSA (pressure sensitive adhesive) or a heat dissipation PSA (pressure sensitive adhesive).

[0286] Accordingly, when the display panel 100 is bent, the second plate 220 can have rigidity against bending pressure. The second plate can include a filler having a heat dissipation function, and thus can exhibit a heat dissipation effect.

[0287] Accordingly, the second plate 220 according to the embodiment of the present disclosure can be made of a transparent material having an adhesive property.

[0288] In this case, the second plate 220 can be formed to have the same or similar thickness as that of the first plate 210.

[0289] Referring to (a) and (b) of FIG. 5, FIG. 18 In this case, the flexible circuit board 500 can be electrically connected to the display panel 100 and fixed to the display panel 100 at a distal end of the top face as the face of the display panel 100 opposite the other face of the display panel 100 on which the second plate 220 is disposed.

[0290] In this case, the flexible circuit board 500 can be disposed to vertically and at least partially overlap the second plate 220 made of a transparent material.

[0291] According to an embodiment of the disclosure, the second plate 220 includes a transparent region. The flexible circuit board 500 can be disposed to vertically and at least partially overlap the transparent region. According to an embodiment of the disclosure, the second plate 220 includes a transparent material so that the entire region of the second plate 220 can be the transparent region. Accordingly, one or more indentations can be formed at the interface between the flexible circuit board 500 and the display panel 100, and the overlapping region 510 between the flexible circuit board 500 and the display panel 100 can be identified from a position below the second plate 220 through the second plate 220. Whether an indentation occurs in the overlapping region 510 can be easily identified.

[0292] Accordingly, according to an embodiment of the disclosure, the second plate 220 including the transparent region is disposed on a portion of the back surface of the display panel 100 corresponding to a distal end of the top surface of the display panel 100 to which the flexible circuit board 500 is connected. Accordingly, a process operator can easily identify whether an indentation has occurred in the overlapping region of the flexible circuit board 500 and the display panel 100 through the transparent region of the second plate 220.

[0293] Accordingly, a process operator can easily identify whether the flexible circuit board 500 and the display panel 100 are electrically connected to each other based on the occurrence or non-occurrence of an indentation, thereby improving productivity and reducing the occurrence of defects in the display device 1 due to connection defects.

[0294] Referring to (a) and (b) in FIG. 1, FIG. 19 By bending the display panel 100 from the gap 101 of the display panel 100 toward the back surface of the display panel 100, the second plate 220 can be disposed below the first plate 210.

[0295] Since the second plate 220 itself is made of an adhesive material, a separate adhesive layer for fixing the first plate 210 and the second plate 220 to each other can not be needed.

[0296] Accordingly, the second plate 220 can be fixed to the first plate 210 and directly contact the first plate 210.

[0297] Accordingly, according to an embodiment of the disclosure, a process of forming a separate connection member having adhesiveness for fixing the second plate 220 and the first plate 210 to each other can be omitted, and thus the efficiency of the process can be obtained.

[0298] In addition, the separate connection member having adhesiveness can have a structure in which an adhesive layer is formed on each of two opposite surfaces of a base layer. According to this embodiment of the disclosure, the second plate 220 can serve as a plate while serving as a connection member having double-sided adhesiveness. Accordingly, a separate additional connection member is not needed, and thus the thickness of the display device 1 can be greatly reduced.

[0299] Accordingly, the display apparatus 1 can include a display panel 100 having a front portion FP, a bending portion BND, and a pad portion PAD bent from the bending portion BND to be positioned on a back of the front portion FP, a first plate 210 disposed between the front portion FP and the pad portion PAD and disposed under the front portion FP, and a second plate 220 disposed between the front portion FP and the pad portion PAD and disposed on a top surface of the pad portion PAD and including a transparent region.

[0300] The flexible circuit board 500 can be connected to a distal end of a bottom of the pad portion PAD of the display panel 100, and the flexible circuit board 500 can be disposed to at least partially and perpendicularly overlap the second plate 220 including the transparent region.

[0301] A display apparatus according to an embodiment of the disclosure as described above can include a display panel including a front portion, a bending portion, and a pad portion bent from the bending portion and positioned under the front portion, a first plate disposed between the front portion and the pad portion and disposed under the front portion, and a second plate disposed between the front portion and the pad portion and disposed on a top surface of the pad portion, wherein the first plate includes a porous member, and wherein the second plate includes a transparent region.

[0302] In one implementation of the apparatus, the apparatus further includes a flexible circuit board connected to a distal end of a bottom of the pad portion, wherein the flexible circuit board at least partially and perpendicularly overlaps the transparent region.

[0303] In one implementation of the apparatus, the porous member includes an electrically conductive metal and a plurality of holes formed inside the electrically conductive metal.

[0304] In one implementation of the apparatus, the second plate includes at least one of polyethylene terephthalate (PET), polyimide (PI), or polyethylene naphthalate (PEN).

[0305] In one implementation of the apparatus, the apparatus further includes a connection member disposed between the first plate and the second plate.

[0306] In one implementation of the apparatus, the first plate and the second plate have different thicknesses from each other.

[0307] In one implementation of the apparatus, the second plate further includes a non-transparent region, wherein the non-transparent region includes a porous member, and wherein the flexible circuit board does not perpendicularly overlap the non-transparent region.

[0308] In one implementation of the apparatus, the first plate has an area dimension larger than an area dimension of the second plate.

[0309] In one implementation of the apparatus, the second plate includes a second plate adhesive layer disposed on one face thereof, wherein the second plate is secured to the first plate via the second plate adhesive layer.

[0310] In one implementation of the apparatus, the second plate is made of an adhesive material, wherein the adhesive material includes at least one of an OCA (optically clear adhesive), an OCR (optically clear resin), or a PSA (pressure sensitive adhesive).

[0311] In one implementation of the apparatus, the second plate is in direct contact with the first plate.

[0312] A method for manufacturing a display device according to an embodiment of the disclosure as described above can include the steps of: providing a display panel; positioning a first plate having different regions and a second plate on a back face of the display panel, wherein the second plate includes a transparent region; forming a gap between the first plate and the second plate; connecting a flexible circuit board to a distal end of a top face of the display panel such that the flexible circuit board is vertically and at least partially overlapped with the transparent region of the second plate; and bending the second plate from the gap toward the back face of the display panel such that the second plate is positioned under the first plate.

[0313] In one implementation of the method, the method further includes forming a connection member on a back face of the first plate, wherein the second plate is secured to the first plate via the connection member.

[0314] In one implementation of the method, the second plate further includes a non-transparent region, wherein the non-transparent region includes a porous member, wherein the flexible circuit board is connected to the display panel such that the flexible circuit board is not vertically overlapped with the non-transparent region. In one implementation of the method, the first plate is formed to have an area dimension greater than an area dimension of the second plate.

[0315] In one implementation of the method, the first plate includes a porous member, wherein the porous member includes an electrically conductive metal and a plurality of holes formed inside the electrically conductive metal.

[0316] In one implementation of the method, the second plate includes a second plate adhesive layer disposed on one face thereof, wherein the second plate is secured to the first plate via the second plate adhesive layer and is in direct contact with the first plate.

[0317] In one implementation of the method, the second plate is made of an adhesive material, wherein the adhesive material includes at least one of an OCA (optically clear adhesive), an OCR (optically clear resin), or a PSA (pressure sensitive adhesive), wherein the second plate is secured to the first plate and is in direct contact with the first plate.

[0318] Although the embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, the present disclosure is not necessarily limited to the embodiments, and various modifications can be made without departing from the technical spirit of the present disclosure. Therefore, the embodiments disclosed in the present disclosure are intended to explain the present disclosure, and are not intended to limit the technical idea of the present disclosure, and the scope of the technical idea of the present disclosure is not limited to the embodiments. Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and are not restrictive. The scope of protection of the present disclosure should be interpreted based on the claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present disclosure.

Claims

1. A display apparatus comprising: a display panel including a front portion, a curved portion, and a land portion curved from the curved portion and positioned below the front portion; a first plate disposed between the front portion and the land portion and below the front portion; and a second plate disposed between the front portion and the land portion and on a top surface of the land portion, wherein the second plate includes a transparent region and a non-transparent region, wherein the display apparatus further comprises a flexible circuit board at least partially and perpendicularly overlapping the transparent region without perpendicularly overlapping the non-transparent region, and wherein the non-transparent region of the second plate includes a porous member. The flexible circuit board is connected to a distal end of a bottom of the land portion.

2. The display device of claim 1, wherein, The first plate includes a porous member.

3. The display device of claim 1, wherein, The porous member includes an electrically conductive metal and a plurality of pores formed inside the electrically conductive metal.

4. The display device of claim 3, wherein, The second plate includes at least one of polyethylene terephthalate (PET), polyimide (PI), or polyethylene naphthalate (PEN).

5. The display device of claim 2, wherein, The display apparatus further comprises a connection member disposed between the first plate and the second plate.

6. The display device of claim 1, wherein, Thicknesses of the first plate and the second plate are different from each other.

7. The display device of claim 1, wherein, The first plate has an area dimension greater than an area dimension of the second plate.

8. The display device of claim 1, wherein, The second plate includes a second plate adhesive layer disposed on one face thereof, 9. The display device of claim 1, wherein, wherein the second plate is fixed to the first plate via the second plate adhesive layer. The second plate is made of an adhesive material, 10. The display device of claim 1, wherein, wherein the adhesive material includes at least one of an optically clear adhesive (OCA), an optically clear resin (OCR), or a pressure sensitive adhesive (PSA). The second plate is in direct contact with the first plate.

11. The display device of claim 9 or 10, wherein, An anisotropic conductive film including electrically conductive balls is interposed between the flexible circuit board and the land portion, and 12. The display device of claim 2, wherein, an indentation caused by the electrically conductive balls between the flexible circuit board and the land portion overlaps the transparent region. The transparent region of the second plate is closer to an outer edge of the display panel than the non-transparent region.

13. The display device of claim 1, wherein, 14.A method for manufacturing a display apparatus, the method comprising: providing a display panel; disposing a first plate and a second plate at different regions on a back surface of the display panel, wherein the second plate includes a transparent region and a non-transparent region; forming a gap between the first plate and the second plate; connecting a flexible circuit board to a distal end of a top surface of the display panel such that the flexible circuit board perpendicularly and at least partially overlaps the transparent region of the second plate; and bending the second plate from the gap toward the back surface of the display panel such that the second plate is positioned below the first plate, wherein the non-transparent region includes a porous member, and wherein the flexible circuit board is connected to the display panel such that the flexible circuit board does not perpendicularly overlap the non-transparent region. The method further comprises forming a connection member on a back surface of the first plate, 15. The method of claim 14, wherein, wherein the second plate is fixed to the first plate via the connection member. ​ 16. The method of claim 14, wherein, The first plate is formed to have an area dimension greater than an area dimension of the second plate.

17. The method of claim 14, wherein, The first plate includes a porous member, The porous member includes an electrically conductive metal and a plurality of pores formed inside the electrically conductive metal.

18. The method of claim 14, wherein, The second plate includes a second plate adhesive layer disposed on one face thereof, The second plate is fixed to the first plate and in direct contact with the first plate via the second plate adhesive layer.

19. The method of claim 14, wherein, The second plate is made of an adhesive material, The adhesive material includes at least one of an optically clear adhesive (OCA), an optically clear resin (OCR), or a pressure sensitive adhesive (PSA), The second plate is fixed to the first plate and in direct contact with the first plate.

20. The method of claim 14, wherein, Before the step of bending the second plate, the method further includes the steps of: identifying, through the transparent area of the second plate, whether an indentation occurs in an overlapping area of the flexible circuit board and the display panel.

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