Bonding apparatus and method of manufacturing display device

Abstract

Bonding apparatus and methods of manufacturing display apparatus are provided. The bonding apparatus includes a first panel support, a second panel support, a septum, and a window fixation chuck, the second panel support is disposed below the first panel support, the septum is disposed on the first panel support and extends along the first panel support, the septum is disposed between the first panel support and the second panel support, the window fixation chuck is disposed on the septum, the window fixation chuck includes a recess facing the septum. A through-hole extends from the second panel support to the first panel support, and the septum is disposed on the through-hole.

Description

[0001] Cross-references to related applications

[0002] This application claims priority and benefit to Korean Patent Application No. 10-2020-0068125, filed on June 5, 2020, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The disclosure herein relates to a support member, a coupling device including the support member, and a method for manufacturing a display device using the coupling device. Background Technology

[0004] Electronic devices used to provide images to users, such as smartphones, digital cameras, laptops, navigation units, and smart TVs, may include display devices for displaying images. The display device can generate images to provide the generated images to the user via a display screen.

[0005] In recent years, various types of display devices have been developed in the process of display device technology development. For example, display devices capable of displaying images on their rear, side, and front surfaces have been developed.

[0006] The display device may include a display panel for displaying images and a window disposed on the display panel to protect the display panel. The display panel and the window may be molded and disposed on the front surface, rear surface, and side surface of the display device so as to display images on the front surface, rear surface, and side surface of the display device.

[0007] It will be understood that this background in the technical section is intended to provide, in part, a useful context for understanding the present invention. However, this background in the technical section may also include ideas, concepts, or knowledge that were known or understood by a person skilled in the art prior to the corresponding valid application date, and that are not part of the subject matter disclosed herein. Summary of the Invention

[0008] This disclosure provides a support member capable of preventing joint failure between a display panel and a window, a jointing device including the support member, and a method for manufacturing a display device using the jointing device.

[0009] The embodiment provides a joining device that may include a first panel support, a second panel support, a diaphragm, and a window fixing chuck. The second panel support is disposed below the first panel support. The diaphragm is disposed on and extends along the first panel support, with the diaphragm positioned between the first and second panel supports. The window fixing chuck is disposed on the diaphragm and includes a groove facing the diaphragm. A through-hole extends from the second panel support to the first panel support, and the diaphragm may be disposed on the through-hole.

[0010] The thickness of the diaphragm can gradually decrease from the upper end of the first panel support to a portion between the first panel support and the second panel support.

[0011] The second panel support can have a plate shape and extend in a third direction intersecting a plane defined by the first direction and a second direction intersecting the first direction, the plate shape being defined by the first direction and the third direction, and the first panel support and the groove can extend in the first direction.

[0012] The diaphragm can not be disposed on side surfaces of the second panel support facing each other in the first direction and the second direction.

[0013] The window fixing chuck moves in the third direction or the first panel support and the second panel support move in the third direction, and the first panel support, the second panel support, and the diaphragm can be disposed in the groove of the window fixing chuck.

[0014] The diaphragm can overlap the first panel support, and the first panel support can include a curved surface protruding in an upward direction corresponding to the third direction, and the window fixing chuck can include a concave curved surface at an inner end of the groove of the window fixing chuck facing the curved surface of the first panel support.

[0015] The first panel support can have a maximum width greater than a width of the second panel support based on the second direction.

[0016] The diaphragm can include a first portion disposed on the curved surface of the first panel support and a second portion disposed between the first panel support and the second panel support.

[0017] The first portion of the diaphragm can be disposed on a through hole extending from the second panel support to the first panel support and be inflated by air injected through the through hole, and the second portion of the diaphragm can not overlap the through hole.

[0018] The engagement device can further include a fastening unit that can fasten the second panel support to the first panel support and can not overlap the through hole.

[0019] The fastening unit can pass through the second panel support and the second portion of the diaphragm and be inserted into the first panel support.

[0020] The fastening unit can pass through the second panel support, be inserted into the first panel support, and can not pass through the second portion of the diaphragm.

[0021] The through hole can extend in the first direction from the upper end of the first panel support.

[0022] The first panel support can have a maximum width equal to a width of the second panel support based on the second direction.

[0023] The first and second panel supports can be integrated, and the membrane can be coupled to a portion between the first and second panel supports.

[0024] The through hole can include a plurality of first through holes formed in the first panel support and second through holes formed in the second panel support, wherein lower portions of the plurality of first through holes can form an integrated space to overlap the second through holes.

[0025] A thickness of the membrane can be constant from an upper end of the first panel support to a portion between the first and second panel supports.

[0026] In an embodiment, a method of manufacturing a display device can include: arranging a display panel on a membrane overlapping an upper portion of a panel support and on a side surface of the panel support; arranging a window in a groove of a window fixing chuck arranged above the membrane; arranging the panel support and the membrane in the groove of the window fixing chuck; coupling a first curved portion of the display panel arranged on the membrane to a second curved portion of the window adjacent to the first curved portion of the display panel by inflating the membrane; and coupling a first flat portion of the display panel arranged on the side surface of the panel support to a second flat portion of the window adjacent to the first flat portion of the display panel by moving the inflated membrane along the groove of the window fixing chuck to be away from the first curved portion of the display panel.

[0027] The method can further include inflating the membrane by air injected through a through hole formed in the panel support.

[0028] A first air pressure supplied to the membrane when the first curved portion of the display panel can be coupled to the second curved portion of the window can be greater than a second air pressure supplied to the membrane when the first flat portion of the display panel can be coupled to the second flat portion of the window.

[0029] The panel support can include a first panel support and a second panel support arranged below the first panel support, wherein the membrane can be arranged on the first panel support and extend along the first panel support, the membrane can be arranged between the first and second panel supports, and the through hole can extend from the second panel support to the first panel support, and the membrane can be arranged on the through hole formed in the first panel support.

[0030] The membrane can not be arranged on a side surface of the second panel support, and a thickness of the membrane can gradually decrease from an upper end of the first panel support to a portion between the first and second panel supports.

[0031] In an embodiment, the support can include a first panel support, a second panel support disposed below the first panel support, and a diaphragm disposed on the first panel support and extending along the first panel support, the diaphragm being disposed between the first panel support and the second panel support. The diaphragm can not be disposed on side surfaces of the second panel support, and the diaphragm can be inflated by air injected through a through-hole extending from the second panel support to the first panel support.

[0032] A thickness of the diaphragm can gradually decrease from an upper end of the first panel support to a portion between the first panel support and the second panel support. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings are included to provide a further understanding and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain principles of the present disclosure. In the drawings:

[0034] Figure 1 is a perspective view illustrating a coupling device according to an embodiment;

[0035] Figure 2 is a view illustrating a display panel and a window coupled to each other by the coupling device in Figure 1 ;

[0036] Figure 3 is a schematic cross-sectional view illustrating the display panel in Figure 2 ;

[0037] Figure 4 is a view illustrating a schematic cross-section of one pixel disposed on a display element layer and a circuit element layer in Figure 3 ;

[0038] Figure 5 is an exploded perspective view illustrating a support in Figure 1 ;

[0039] Figure 6 is a schematic cross-sectional view taken along line I-I' of Figure 5 ;

[0040] Figure 7 is a schematic cross-sectional view taken along line II-II' of Figure 5 ;

[0041] Figure 8 is a schematic cross-sectional view taken along line III-III' of Figure 5 ;

[0042] Figures 9 to 17 is a view for illustrating a method of manufacturing a display device using the coupling device in Figure 1 ;

[0043] Figure 18 is a view showing a support portion to be coupled with a display panel and a window;

[0044] Figure 19 is a view showing a display device manufactured by the display panel, the window, and the support portion coupled with each other;

[0045] Figure 20 is a view showing a configuration of a support according to an embodiment;

[0046] Figure 21 is a schematic cross-sectional view taken along line IV-IV' of Figure 20

[0047] Figure 22 is a view showing a configuration of a support according to an embodiment;

[0048] Figure 23 is a schematic cross-sectional view taken along line V-V' of Figure 22

[0049] Figure 24 is a view showing a configuration of a support according to an embodiment;

[0050] Figure 25 is a schematic cross-sectional view taken along line VI-VI' of Figure 24

[0051] Figure 26 is a view showing a configuration of a support according to an embodiment;

[0052] Figure 27 is a schematic cross-sectional view taken along line VII-VII' of Figure 26

[0053] Figure 28 is a view showing a configuration of a support according to an embodiment; and

[0054] Figure 29 is a view showing a configuration of a support according to an embodiment. DETAILED DESCRIPTION

[0055] The present disclosure will now be described more fully with reference to the accompanying drawings, in which embodiments of the disclosure are shown. The present disclosure may, however, be embodied in many 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.

[0056] ​​​​As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. Throughout the disclosure, the expression “at least one of a, b, and c” means only a, only b, only c, both a and b, both a and c, both b and c, all of a, b, and c, or variations thereof.

[0057] The terms “and” and “or” can be used in either a conjunctive sense or a disjunctive sense, and can be understood to be equivalent to, and interchangeable with, “and / or.” In the specification and claims, the phrase “at least one of a, b, and c” is intended to mean “at least one of the group consisting of a, b, and c.” For example, “at least one of a and b” can be understood to mean “a, b, or a and b.”

[0058] In this specification, it will also be understood that when a part (or element, layer, portion) is referred to as being “on” another part, “connected to” or “coupled to” another part, it can be directly on or connected / coupled to the other part or intervening third parts or other parts can also be present.

[0059] Throughout the drawings, like reference numerals refer to like elements. In addition, in the drawings, the thickness, proportions, and dimensions of parts are exaggerated for clarity of illustration.

[0060] The term “and / or” includes any and all combinations of one or more of the associated listed items.

[0061] It will be understood that, although the terms “first” and “second” are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element described as a first element in one implementation can be described as a second element in another implementation without departing from the scope of the appended claims. Singular forms of terms can include plural forms unless indicated otherwise.

[0062] In addition, “below,” “under,” “above,” “on,” and the like are used to illustrate relative relationships between components shown in the drawings. These terms can be relative concepts and can be described based on the direction indicated in the drawings.

[0063] For ease of description, spatially relative terms, such as "below", "under", "lower", "above", "upper" and the like, can be used herein for the purpose of describing the orientation of one element or component relative to another element or component as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, the device shown in the figures can be inverted, and, as a result, a device that is positioned "below" or "under" another device in the orientation shown in the figures can be positioned "above" the other device in the inverted orientation. Thus, the illustrative terms "below" and "under" can include both the lower and upper locations. The device can also be oriented in other directions, and as a result, the spatially relative terms can be interpreted differently depending on the orientation of the device.

[0064] In addition, the term "overlapping" or "overlap" means that a first object can be above or below a second object or to the side of the second object, and vice versa. In addition, the term "overlapping" can include layering, stacking, facing or facing towards, extending over, covering or partially covering, or any other suitable term as would be appreciated and understood by one of ordinary skill in the art. The terms "facing" and "facing towards" mean that a first element can be directly or indirectly opposite a second element. The first element and the second element can be understood to be indirectly opposite each other, although still facing each other, in the event a third element is interposed between the first element and the second element. When elements are described as "not overlapping" or "will not overlap", this can include the elements being spaced apart from each other, offset from each other, or separated from each other, or any other suitable term as would be appreciated and understood by one of ordinary skill in the art.

[0065] The phrase "in plan view" means viewing an object from the top, and the phrase "in schematic cross-sectional view" means viewing a cross-section of an object when cut vertically from the side.

[0066] "About" or "approximately," as used herein, includes the stated value and the range of values determined by one of ordinary skill in the art to be reasonable in light of the measure at issue and the associated limitations of the measurement system (i.e., the limits of the measurement system). For example, "about" can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the stated value.

[0067] As used herein, the term "unit" denotes a structure or element as shown in the drawings and described in the specification. However, the present disclosure is not limited thereto. The term "unit" is not limited to the unit shown in the drawings.

[0068] 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. 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 in the description.

[0069] The meaning of "include" or "comprise" or "have" and variations thereof, load that the property, fixed number, step, operation, element, component or combination thereof, but does not exclude other properties, fixed numbers, steps, operations, elements, components or combinations thereof.

[0070] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

[0071] Figure 1 is a perspective view showing a bonding apparatus according to an embodiment.

[0072] Referring to Figure 1 , a bonding apparatus BOD according to an embodiment can include a stage STG, a support SUP, a column COL, a tension part TNP, a first moving part MOV1, a second moving part MOV2, a third moving part MOV3, a roller ROL, a roller support RSP, and a window fixing chuck FCK.

[0073] The stage STG can have a plane defined by a first direction DR1 and a second direction DR2 intersecting or crossing the first direction DR1. The column COL can be arranged on both sides of the stage STG opposite to each other in the first direction DR1 and each extend in a third direction DR3. The columns COL can face each other in the first direction DR1.

[0074] The third direction DR3 can be defined as a direction intersecting or crossing the plane defined by the first direction DR1 and the second direction DR2 in a substantially perpendicular manner. Hereinafter, in the present specification, spatial relative terms such as "above", "on", "below", "upward direction", "downward direction", and the like can indicate relative positions and directions of components with respect to the third direction DR3.

[0075] The support SUP can be arranged on the stage STG. The support SUP can be arranged between the columns COL. The support SUP can have a lower part arranged in a recess RES defined or formed in the stage STG.

[0076] The support SUP can have a plane defined by the first direction DR1 and the third direction DR3. The support SUP can include a panel support PSP and a diaphragm DPM. The panel support PSP can have a substantially plate shape defined by the first direction DR1 and the third direction DR3. The panel support PSP can have a lower portion arranged in the recess RES. The panel support PSP can be of a rigid type and include stainless steel.

[0077] The diaphragm DPM can extend in the first direction DR1. The diaphragm DPM can be arranged in an upper portion of the panel support PSP. The diaphragm DPM can cover or overlap the upper portion of the panel support PSP. The diaphragm DPM can include a material having elasticity and expanding by an external force. For example, the diaphragm DPM can include silicon.

[0078] The tensioning portions TNP can face both sides of the stage STG opposite to each other in the second direction DR2. The tensioning portions TNP can each extend in the first direction DR1. The fixing grooves FGV can be defined or formed on inner surfaces of the tensioning portions TNP facing each other in the second direction DR2.

[0079] The first moving portion MOV1 can be arranged between the tensioning portions TNP and both sides of the stage STG opposite to each other in the second direction DR2. The first moving portion MOV1 can be inserted into the recess RES1 defined or formed at both sides of the stage STG opposite to each other in the second direction DR2 and move in the second direction DR2. The first moving portion MOV1 can be connected to the tensioning portions TNP and move the tensioning portions TNP in the second direction DR2.

[0080] Although not shown, a driving unit for driving the first moving portion MOV1 can be arranged in the stage STG. However, embodiments are not limited to this position of the driving unit.

[0081] The second moving portion MOV2 can have a substantially frame shape. For example, although the second moving portion MOV2 can have a substantially frame shape of a substantially rectangular shape, embodiments are not limited to this shape of the second moving portion MOV2. The second moving portion MOV2 can be connected to the column COL. The second moving portion MOV2 can be connected to an outer side surface of the column COL opposite to inner side surfaces of the column COL facing each other. The second moving portion MOV2 can move in the third direction DR3.

[0082] Although not shown, a driving unit for driving the second moving portion MOV2 can be arranged in the column COL. However, embodiments are not limited to this position of the driving unit.

[0083] The third moving portions MOV3 can each extend in the first direction DR1 and face each other in the second direction DR2. The third moving portions MOV3 can be connected to inner side surfaces of the second moving portions MOV2 that face each other in the first direction DR1. The third moving portions MOV3 can be disposed adjacent to the inner side surfaces of the second moving portions MOV2 that face each other in the first direction DR1. The third moving portions MOV3 can move in the second direction DR2.

[0084] Although not shown, a driving unit for driving the third moving portions MOV3 can be disposed in the second moving portions MOV2. However, embodiments are not limited to this position of the driving unit.

[0085] The roller supports RSP can each extend in the second direction DR2. The roller supports RSP can be connected to the third moving portions MOV3. The roller supports RSP connected to each of the third moving portions MOV3 can be aligned or disposed in the first direction DR1.

[0086] Each of the rollers ROL can be disposed between and connected to the roller supports RSP connected to each of the third moving portions MOV3. Each of the rollers ROL can have a substantially cylindrical shape extending in the first direction DR1. The rollers ROL can face each other in the second direction DR2. The rollers ROL can move in the second direction DR2 by the third moving portions MOV3 and can move in the third direction DR3 by the second moving portions MOV2.

[0087] The rollers ROL can be connected to the roller supports RSP to rotate. For example, the rollers ROL can rotate with respect to a rotation axis parallel to the first direction DR1. The rollers ROL can move in the second direction DR2 along the roller supports RSP.

[0088] The window fixing chuck FCK can be disposed higher than the support SUP. A groove GOV extending in the first direction DR1 can be defined or formed in the window fixing chuck FCK. The groove GOV can have an inner end having a substantially concave shape.

[0089] Figure 2 is a view showing display panels and a window engaged with each other by engagement devices in Figure 1 .

[0090] Figure 2 A side surface of the display panel DP and the window WIN when viewed in the first direction DR1 is shown.

[0091] Referring to Figure 2 , the display panel DP to be engaged to the window WIN can be disposed on the support SUP, and the window WIN can be disposed in the groove GOV of the window fixing chuck FCK in the engagement device BOD. This will be described below in Figures 9 to 17The shape of the display panel DP arranged on the support SUP and the shape of the window WIN arranged in the groove GOV of the window fixing chuck FCK are illustrated in FIG. 1.

[0092] The display panel DP can be arranged on the support SUP through the guide film GFM, instead of being directly arranged on the support SUP. For example, the guide film GFM can be prepared, and then the display panel DP can be arranged on the guide film GFM. The guide film GFM can be arranged on the support SUP.

[0093] The guide film GFM can include a flexible plastic material. For example, the guide film GFM can include a plastic material such as polyimide (PI) or polyethylene terephthalate (PET).

[0094] The display panel DP can be a flexible display panel. The display panel DP according to the embodiment can be a light emitting display panel. However, the embodiment is not particularly limited thereto. For example, the display panel DP can be an organic light emitting display panel or a quantum dot light emitting display panel. The organic light emitting display panel can include a light emitting layer including an organic light emitting material. The quantum dot light emitting display panel can include a light emitting layer including quantum dots or quantum rods. Accordingly, the display panel DP will be described as an organic light emitting display panel.

[0095] The window WIN can be arranged on the display panel DP. The window WIN can include glass. The window WIN can be defined or formed as ultra-thin glass (UTG). The ultra-thin glass, which is tempered glass, can have strong durability not to be broken even if bent.

[0096] The window WIN can include a synthetic resin film in addition to glass. Also, the window WIN can have a multi-layer structure or a single layer structure. For example, the window WIN can include a synthetic resin film coupled or connected or adhered or attached by an adhesive, or can include a glass substrate and a synthetic resin film coupled or connected or adhered or attached by an adhesive.

[0097] The adhesive ADH can be arranged between the display panel DP and the window WIN. Although the adhesive ADH can include an optically clear adhesive (OCA), the embodiment is not limited thereto.

[0098] The adhesive ADH can be first arranged on the top surface of the display panel DP. The adhesive ADH can be first bonded to the top surface of the display panel DP, and then the window WIN can be bonded to the adhesive ADH. The display panel DP and the window WIN can be bonded to each other by the adhesive ADH. Figure 1 The bonding device BOD in FIG. 1 can be used to bond the display panel DP and the window WIN to each other.

[0099] The display panel DP and the window WIN can be bonded to each other, and then the guide film GFM can be separated from the display panel DP. Although not shown, an adhesive for bonding the guide film GFM to the display panel DP can be disposed between the guide film GFM and the display panel DP. The window WIN bonded to the display panel DP can protect the display panel DP from external scratches and impacts.

[0100] Although not shown, an input sensing part for sensing an external input and an anti-reflection layer for preventing reflection of external light can be disposed between the display panel DP and the window WIN.

[0101] Figure 3 is a view showing a cross-section of a display panel in Figure 2 . Figure 4 is a view showing a cross-section of one pixel disposed on a display element layer and a circuit element layer in Figure 3 .

[0102] Referring to Figure 3 , the display panel DP can include a substrate SUB, a circuit element layer DP-CL disposed on the substrate SUB, a display element layer DP-OLED disposed on the circuit element layer DP-CL, and a thin film encapsulation layer TFE disposed on the display element layer DP-OLED.

[0103] The substrate SUB can include a display area DA and a non-display area NDA disposed around the display area DA. The substrate SUB can include a flexible plastic material such as polyimide (PI). The display element layer DP-OLED can be disposed on the display area DA.

[0104] Pixels can be disposed on the circuit element layer DP-CL and the display element layer DP-OLED. Each of the pixels can include a transistor disposed on the circuit element layer DP-CL and a light emitting element disposed on the display element layer DP-OLED and electrically connected to the transistor.

[0105] The thin film encapsulation layer TFE can be disposed on the circuit element layer DP-CL to cover or overlap the display element layer DP-OLED. The thin film encapsulation layer TFE can include inorganic layers and organic layers disposed between the inorganic layers. The inorganic layers can protect the pixels from moisture / oxygen. The organic layers can protect the pixels from foreign substances such as dust particles.

[0106] Referring to Figure 4 , the pixel PX can include a transistor TR and a light emitting element OLED. The light emitting element OLED can include a first electrode AE, a second electrode CE, a hole control layer HCL, an electron control layer ECL, and a light emitting layer EML. The first electrode AE can be an anode, and the second electrode CE can be a cathode.

[0107] The transistor TR and the light emitting element OLED can be disposed on the substrate SUB. Although one transistor TR is shown, the pixel PX can include a plurality of transistors and at least one capacitor for driving the light emitting element OLED. The display area DA can include a light emitting area PA on which the light emitting element OLED can be disposed and a non-light emitting area NPA disposed around the light emitting area PA.

[0108] The buffer layer BFL can be disposed on the substrate SUB, and the buffer layer BFL can be an inorganic layer. The semiconductor pattern can be disposed on the buffer layer BFL. The semiconductor pattern can include polysilicon. However, embodiments are not limited thereto. For example, the semiconductor pattern can include amorphous silicon or metal oxide.

[0109] The semiconductor pattern can have electrical characteristics that can vary according to whether or not it is doped. The semiconductor pattern can include a doped region and a non-doped region. The doped region can be doped with an n-type dopant or a p-type dopant. The doped region can have a greater electrical conductivity than that of the non-doped region, and can substantially function as a source electrode and a drain electrode of the transistor TR. The non-doped region can substantially correspond to an active (or channel) of the transistor.

[0110] A region or layer of the source S, the active A, and the drain D of the transistor TR can be provided by or can be included in the semiconductor pattern. The first insulating layer INS1 can be disposed on the semiconductor pattern. The gate G of the transistor TR can be disposed on the first insulating layer INS1.

[0111] The second insulating layer INS2 can be disposed on the gate G. The third insulating layer INS3 can be disposed on the second insulating layer INS2. The connection electrode CNE for electrically connecting the transistor TR and the light emitting element OLED can be disposed between the transistor TR and the light emitting element OLED. The connection electrode CNE can include a first connection electrode CNE1 and a second connection electrode CNE2 disposed on the first connection electrode CNE1.

[0112] The first connection electrode CNE1 can be disposed on the third insulating layer INS3 and electrically connected to the drain D through a first contact hole CH1 defined or formed in the first insulating layer INS1 to the third insulating layer INS3. The fourth insulating layer INS4 can be disposed on the first connection electrode CNE1. The fifth insulating layer INS5 can be disposed on the fourth insulating layer INS4. The second connection electrode CNE2 can be disposed on the fifth insulating layer INS5. The second connection electrode CNE2 can be electrically connected to the first connection electrode CNE1 through a second contact hole CH2 defined or formed in the fourth insulating layer INS4 and the fifth insulating layer INS5.

[0113] A sixth insulating layer INS6 can be disposed on the second connection electrode CNE2. Layers from the buffer layer BFL to the sixth insulating layer INS6 can define or be formed as a circuit element layer DP-CL. Each of the first to sixth insulating layers INS1 to INS6 can be an inorganic layer or an organic layer.

[0114] A first electrode AE can be disposed on the sixth insulating layer INS6. The first electrode AE can be electrically connected to the second connection electrode CNE2 through a third contact hole CH3 defined or formed in the sixth insulating layer INS6. A pixel definition layer PDL for exposing a predetermined portion of the first electrode AE can be disposed on the first electrode AE and the sixth insulating layer INS6. An opening PX_OP for exposing the predetermined portion of the first electrode AE can be defined or formed in the pixel definition layer PDL.

[0115] A hole control layer HCL can be disposed on the first electrode AE and the pixel definition layer PDL. The hole control layer HCL can be commonly disposed on the light emitting area PA and the non-light emitting area NPA. The hole control layer HCL can include a hole transport layer and a hole injection layer.

[0116] An emission layer EML can be disposed on the hole control layer HCL. The emission layer EML can be disposed on an area corresponding to the opening PX_OP. The emission layer EML can include an organic material and / or an inorganic material. The emission layer EML can generate one of red light, green light, and blue light.

[0117] An electron control layer ECL can be disposed on the emission layer EML and the hole control layer HCL. The electron control layer ECL can be commonly disposed on the light emitting area PA and the non-light emitting area NPA. The electron control layer ECL can include an electron transport layer and an electron injection layer.

[0118] A second electrode CE can be disposed on the electron control layer ECL. The second electrode CE can be commonly disposed on the pixels. A thin film encapsulation layer TFE can be disposed on the light emitting element OLED. Layers on which the light emitting element OLED can be disposed can define or be formed as a display element layer DP-OLED.

[0119] A first voltage can be applied to the first electrode AE through the transistor TR, and a second voltage can be applied to the second electrode CE. Here, holes and electrons injected into the emission layer EML can combine with each other to provide an exciton, and when the exciton can be converted into a ground state, the light emitting element OLED can emit light.

[0120] Figure 5 is Figure 1 An exploded perspective view of the support in

[0121] Referring to Figure 5The support SUP can include a panel support PSP, a diaphragm DPM disposed on the panel support PSP, and a fastening unit FU that can fasten the panel support PSP and the diaphragm DPM. The panel support PSP can include a first panel support PSP1 and a second panel support PSP2 disposed below the first panel support PSP1. The diaphragm DPM can be disposed on the first panel support PSP1.

[0122] The first panel support PSP1 can extend in a first direction DR1. When viewed from the first direction DR1, the first panel support PSP1 can have a curved surface that protrudes in an upward direction. The upward direction can correspond to a third direction DR3.

[0123] The second panel support PSP2 can extend in the third direction DR3. The second panel support PSP2 can have a substantially plate shape defined or formed by the first direction DR1 and the third direction DR3. The second panel support PSP2 can have a substantially rectangular shape that extends longer in the first direction DR1.

[0124] Through-holes AH arranged in the first direction DR1 can be defined or formed in the panel support PSP. The through-holes AH can include first through-holes AH1 defined or formed in the first panel support PSP1 and second through-holes AH2 defined or formed in the second panel support PSP2. The first through-holes AH1 can be arranged in the first direction DR1, and the second through-holes AH2 can be arranged in the first direction DR1.

[0125] For example, although each of the first through-holes AH1 and the second through-holes AH2 can have a substantially rectangular shape when viewed in the third direction DR3, embodiments are not limited to this shape of each of the first through-holes AH1 and the second through-holes AH2.

[0126] Fastening holes FH arranged in the first direction DR1 can be defined or formed in the second panel support PSP2. In the case where the first direction DR1 can be defined or formed as a row direction, the fastening holes FH can be arranged in two rows. Although the fastening holes FH can be defined or formed in the second panel support PSP2 in terms of a perspective view, the fastening holes FH can be defined or formed even in the first panel support PSP1 and the diaphragm DPM. The above-described structure will also be shown in Figure 7

[0127] The fastening holes FH can not overlap the through-holes AH. When viewed in a second direction DR2, the fastening holes FH can be disposed between the through-holes AH. The fastening holes FH can be disposed closer to two side surfaces of the second panel support PSP2 than the through-holes AH. The two side surfaces of the second panel support PSP2 can be side surfaces of the second panel support PSP2 that face each other in the second direction DR2. ​

[0128] For example, each of the fastening holes FH can have a substantially circular shape when viewed in the third direction DR3. Each of the fastening units FU can have a substantially cylindrical shape extending in the third direction DR3. The fastening units FU can be arranged in the fastening holes FH. Arrangements of the fastening units FU arranged in the fastening holes FH will be described below with reference to Figure 7 a schematic cross-sectional view of FIG. 1.

[0129] Figure 6 is a schematic cross-sectional view taken along a line I-I' of FIG. 1. Figure 5

[0130] Also, a cross-section of the diaphragm DPM and the first panel support PSP1 is shown in a schematic cross-sectional view of FIG. 2. Figure 6 Referring to

[0131] , the through hole AH can pass through from the second panel support PSP2 to the first panel support PSP1. The through hole AH can extend in the third direction DR3. The first through hole AH1 can overlap the second through hole AH2 when viewed in the third direction DR3. Figure 6 The diaphragm DPM can be arranged on the first through hole AH1. The diaphragm DPM can extend along the first panel support PSP1. The diaphragm DPM can cover or overlap the first panel support PSP1. For example, the diaphragm DPM can be arranged on a top surface of the first panel support PSP1 and two side surfaces of the first panel support PSP1 opposite to each other in the first direction DR1.

[0132] The diaphragm DPM can be a membrane structure having a small thickness and made of synthetic rubber, synthetic resin, or metal. The diaphragm DPM can have a property of recovering to an original shape with a predetermined elastic force. For example, the diaphragm DPM can be a diaphragm having an elastic thin film.

[0133] The diaphragm DPM can extend between the first panel support PSP1 and the second panel support PSP2. The diaphragm DPM can have a lower portion that can be arranged and connected between the first panel support PSP1 and the second panel support PSP2. The diaphragm DPM can not be arranged on two side surfaces of the second panel support PSP2 opposite to each other in the first direction DR1.

[0134] The diaphragm DPM can include a first portion PT1 arranged on the first panel support PSP1 and a second portion PT2 arranged between the first panel support PSP1 and the second panel support PSP2. The first portion PT1 can be arranged on two side surfaces of the first panel support PSP1 opposite to each other in the first direction DR1. The first portion PT1 can include a first outer surface OS1 as in

[0135] Figure 12 FIG. 3.​​

[0136] Figure 7 is a schematic cross-sectional view taken along line II-II' of Figure 5

[0137] Hereinafter, the present application will be described in detail as needed in conjunction with Figure 5 Figure 7 Also, in the schematic cross-sectional view, a cross-section of the diaphragm DPM and the first panel support PSP1 is shown. Figure 7

[0138] Referring to Figure 7 When viewed in the first direction DR1, a bottom surface of the first panel support PSP1 facing the second panel support PSP2 can be parallel to the second direction DR2. When viewed in the first direction DR1, the second panel support PSP2 can have a substantially rectangular shape extending longer in a third direction DR3.

[0139] When viewed in the first direction DR1, an outer surface of the first panel support PSP1 other than the bottom surface of the first panel support PSP1 can have a curved surface convex in an upward direction. A maximum width of the first panel support PSP1 having the curved surface can be greater than a width of the second panel support PSP2 with respect to or based on the second direction DR2.

[0140] Since the diaphragm DPM can be disposed on the outer surface of the first panel support PSP1 having the curved surface, the diaphragm DPM can also have a curved surface. The diaphragm DPM can have a thickness gradually decreasing from an upper end of the first panel support PSP1 to a portion between the first panel support PSP1 and the second panel support PSP2. However, embodiments are not limited thereto. For example, the diaphragm DPM can have a constant thickness. Also, the diaphragm DPM can have various shapes and various thicknesses. The diaphragm DPM can not be disposed on side surfaces of the second panel support PSP2 opposite to each other in the second direction DR2.

[0141] The first portion PT1 can be disposed on the curved surface of the first panel support PSP1. The second portion PT2 can be connected and fixed between the first panel support PSP1 and the second panel support PSP2.

[0142] ​​​The fastening hole FH may include: a fastening groove FG defined or formed in the first panel support PSP1, a first fastening hole FH1 defined or formed in the second panel support PSP2, and a second fastening hole FH2 defined or formed in the second portion PT2 of the diaphragm DPM. The fastening groove FG may be recessed by a predetermined portion in the direction from the bottom surface of the first panel support PSP1 to the upper part of the first panel support PSP1. The first fastening hole FH1 may pass through the second panel support PSP2 in the third direction DR3. The second fastening hole FH2 may pass through the second portion PT2 in the third direction DR3.

[0143] Each of the fastening groove FG, the first fastening hole FH1, and the second fastening hole FH2 can extend to provide an integral space, hole, or cavity. Therefore, when viewed in a third-direction DR3, the fastening groove FG, the first fastening hole FH1, and the second fastening hole FH2 can overlap each other.

[0144] The support member SUP may include a fastening unit FU. The fastening unit FU may pass through the second panel support member PSP2 and the second portion PT2 and be inserted into the first panel support member PSP1. For example, the fastening unit FU may be inserted into the second fastening hole FH2, the first fastening hole FH1, and the fastening groove FG.

[0145] The second panel support member PSP2 can be fastened to the first panel support member PSP1 via the fastening unit FU. Furthermore, the second part PT2 can be connected and fixed between the first panel support member PSP1 and the second panel support member PSP2 via the fastening unit FU.

[0146] Reference Figure 5 and Figure 7 Since the fastening hole FH does not overlap with the through hole AH, the fastening unit FU does not overlap with the through hole AH. Moreover, since the fastening unit FU is arranged in the fastening hole FH, when viewed in the second direction DR2, the fastening unit FU can be arranged between the through holes AH.

[0147] Figure 8 It is along Figure 5 A schematic cross-sectional view taken from line Ⅲ-Ⅲ'.

[0148] In the following text, we will discuss the use of [the following text is incomplete and requires further context]. Figure 6 Combined description Figure 8 Moreover, in Figure 7 The schematic cross-sectional view shows the diaphragm DPM and the first panel support PSP1.

[0149] Reference Figure 6 and Figure 8The through hole AH can pass through the upper end opening of the first panel support PSP1. For example, the first through hole AH1 can pass through the upper end opening of the first panel support PSP1. However, embodiments are not limited thereto. For example, the first through hole AH1 can pass through various positions.

[0150] The first portion PT1 can be disposed on the first through hole AH1. Air can be injected into the first portion PT1 through the through hole AH. The above operation will be described in detail below.

[0151] Referring to Figure 6 and Figure 8 The second portion PT2 can not overlap the through hole AH. Air can be injected into the first through hole AH1 through the second through hole AH2. In a case where the second portion PT2 can overlap the through hole AH, air can not be injected into the first through hole AH1 through the second through hole AH2 due to the second portion PT2. Accordingly, in embodiments, the second portion PT2 can not overlap the through hole AH.

[0152] Figures 9 to 17 is a view for explaining a method of manufacturing a display device using a bonding apparatus in Figure 1

[0153] In Figures 9 to 17 , the display panel DP and the guide film GFM are shown, and the adhesive ADH can be omitted.

[0154] Referring to Figure 9 , the guide film GFM can have a length greater than a length of the display panel DP in the second direction DR2. The display panel DP can be disposed on and bonded to the guide film GFM. A process of bonding the guide film GFM to the display panel DP can be performed in a first process chamber (not shown). Although not shown, the adhesive ADH can be disposed on the display panel DP. Also, an adhesive for bonding the display panel DP to the guide film GFM can be used.

[0155] The guide film GFM and the display panel DP bonded to each other can be transferred to a second process chamber (not shown). In the second process chamber, a process of bonding a window to the display panel DP can be performed. All processes to be described below can be substantially performed in the second process chamber.

[0156] Referring to Figure 10 , a jig JIG can be provided and disposed on portions of the guide film GFM adjacent to both ends of the guide film GFM, which can be opposite to each other in the second direction DR2. The jig JIG can grip both ends of the guide film GFM opposite to each other in the first direction DR1. The guide film GFM can be moved by the jig JIG.

[0157] Referring to Figure 11 ​The guide film GFM can be moved by the jig JIG and disposed above the support SUP. The jig JIG can be moved in a downward direction to provide the guide film GFM on the support SUP.

[0158] Referring to Figure 11 and Figure 12 , the guide film GFM can be moved by the jig JIG in a downward direction, and a portion of the guide film GFM that can overlap with the central portion of the display panel DP can be disposed on the diaphragm DPM. The portion of the guide film GFM that can overlap with the central portion of the display panel DP can be in contact with the diaphragm DPM.

[0159] The jig JIG can move both ends of the guide film GFM in a downward direction so that the both ends are disposed in the fixing grooves FGV (see Figure 1 ) defined or formed in the tensioning portion TNP. Thereafter, the jig JIG can be removed from the guide film GFM.

[0160] Both ends of the guide film GFM can be fixed into the fixing grooves FGV. Although not shown, a fixing unit (e.g., a screw for pressing the guide film GFM) can be disposed in the fixing grooves FGV to fix the both ends of the guide film GFM. The tensioning portion TNP can be moved apart from each other by the first moving portion MOV1 so that the guide film GFM can be flatly spread.

[0161] Referring to Figure 12 and Figure 13 , the roller ROL can be moved in the second direction DR2 and the third direction DR3. As described above, the roller ROL can be moved in the third direction DR3 by the second moving portion MOV2, and can be moved in the second direction DR2 by the third moving portion MOV3.

[0162] The roller ROL can be in contact with the guide film GFM to move the guide film GFM. The roller ROL can be in contact with a portion of the guide film GFM adjacent to the display panel DP. The roller ROL can be disposed adjacent to a lower end of the second panel support PSP2. The roller ROL can be disposed adjacent to a side surface of the second panel support PSP2.

[0163] The guide film GFM can be disposed adjacent to a side surface of the second panel support PSP2 by the roller ROL. Accordingly, the display panel DP can be disposed adjacent to a side surface of the second panel support PSP2 by the guide film GFM by the roller ROL.

[0164] The guide film GFM can be disposed on the side surfaces of the diaphragm DPM and the panel support PSP, and the display panel DP can be disposed on the side surfaces of the diaphragm DPM and the panel support PSP by the guide film GFM. The display panel DP can be spaced upward from the roller ROL. For example, the roller ROL can guide the display panel DP to be disposed adjacent to the second panel support PSP2.

[0165] When the guide film GFM can be moved by the roller ROL, the tensioning portion TNP can be moved together with the roller ROL. As the rollers ROL are moved close to each other in the direction toward the support SUP, the tensioning portion TNP can be moved close to each other in the second direction DR2 by the first moving portion MOV1.

[0166] Hereinafter, the description will be made from the perspective of the display panel DP. Figure 14 The tensioning portion TNP is omitted.

[0167] Referring to FIG. 1, the window WIN can be disposed in the recess GOV of the window fixing chuck FCK. The window WIN disposed in the recess GOV can have a substantially curved shape. Although not shown, a vacuum suction hole for suctioning and fixing the window WIN can be defined or formed in the inner surface of the window fixing chuck FCK in which the recess GOV can be defined or formed. Figure 14 , the window fixing chuck FCK can be disposed above the diaphragm DPM. The recess GOV can face the diaphragm DPM. The window fixing chuck FCK can have a concave curved surface at the inner end of the curved surface of the recess GOV facing the first panel support PSP1.

[0168] The window WIN can be disposed in the recess GOV of the window fixing chuck FCK. The window WIN disposed in the recess GOV can have a substantially curved shape. Although not shown, a vacuum suction hole for suctioning and fixing the window WIN can be defined or formed in the inner surface of the window fixing chuck FCK in which the recess GOV can be defined or formed.

[0169] The window fixing chuck FCK can be disposed above the diaphragm DPM. The recess GOV can face the diaphragm DPM. The window fixing chuck FCK can have a concave curved surface at the inner end of the curved surface of the recess GOV facing the first panel support PSP1.

[0170] In Figure 14 , the side surfaces of the panel support PSP can substantially indicate the side surfaces of the second panel support PSP2 opposite to each other in the second direction DR2. Although not shown in Figure 14 , the adhesive ADH can be disposed on the display panel DP.

[0171] When the display panel DP is arrangeable along the first panel support PSP1 having the substantially curved surface and the second panel support PSP2 having the substantially plate shape extending in the third direction DR3, the display panel DP can have a substantially curved shape. The display panel DP can include first bending portions BP1 and first flat portions PP1. The first bending portions BP1 can be arranged on the first panel support PSP1 having the curved surface and the diaphragm DPM. The first flat portions PP1 can be arranged on the side surface of the second panel support PSP2. The first bending portions BP1 can have a substantially curved shape, and each of the first flat portions PP1 can have a substantially flat shape. In a case where the display panel DP is unfoldable, the first bending portions BP1 can be arranged between the first flat portions PP1.

[0172] The window WIN can include second bending portions BP2 corresponding to the first bending portions BP1 and second flat portions PP2 corresponding to the first flat portions PP1. In a case where the window WIN is unfoldable, the second bending portions BP2 can be arranged between the second flat portions PP2. The first bending portions BP1 can be joined to the second bending portions BP2, and the first flat portions PP1 can be joined to the second flat portions PP2, by the joining means BOD. The above-described operations will be described in detail below.

[0173] The second panel support PSP2 can have a lower end arranged in the recess RES of the stage STG. The air injection hole AIH extending in the third direction DR3 can be defined or formed in a portion of the stage STG in which the recess RES is definable or formable. The air injection hole AIH can overlap the through hole AH when viewed in the third direction DR3.

[0174] Referring to Figure 14 and Figure 15 When the panel support PSP and the diaphragm DPM are arranged in the groove GOV, the display panel DP can be arranged in the groove GOV. The window fixing chuck FCK can be moved in the third direction DR3 so that the panel support PSP and the diaphragm DPM are arranged in the groove GOV.

[0175] However, embodiments are not limited thereto. For example, the panel support PSP can be moved in the third direction DR3 so that the panel support PSP and the diaphragm DPM are arranged in the groove GOV. For example, the stage STG can be moved in the third direction DR3 so that the panel support PSP can be arranged in the groove GOV. Alternatively, the window fixing chuck FCK and the panel support PSP can be moved together in the third direction DR3 to be arranged adjacent to each other.

[0176] In a case where the panel support PSP and the diaphragm DPM are insertable into the groove GOV by moving the window fixing chuck FCK in the third direction DR3, the display panel DP and the window WIN can be spaced apart from each other so that the display panel DP can not be joined to the window WIN by the adhesive ADH. Accordingly, the display panel DP can be spaced apart from the window WIN by a predetermined distance in the groove GOV. For example, the distance between the display panel DP and the window WIN can be in a range of about 0.3 mm to about 0.7 mm.

[0177] Referring to Figure 16 , the air AIR can be injected into the air injection hole AIH, and the air AIR can be provided to the through hole AH through the air injection hole AIH. The through hole AH can define an air path through which the air AIR can substantially move. The air AIR can be injected into the first through hole AH1 through the second through hole AH2. The air AIR can be provided to the diaphragm DPM through the first through hole AH1.

[0178] Although the air AIR can be provided to the through hole AH through the air injection hole AIH, embodiments are not limited thereto. For example, various gases or various fluids including air can be provided to the through hole AH through the air injection hole AIH.

[0179] The first portion PT1 of the diaphragm DPM can be expanded by the air AIR provided through the first through hole AH1. Although the first portion PT1 is expanded, the second portion PT2 can not be separated from the panel support PSP because the second portion PT2 can be fixed between the first panel support PSP1 and the second panel support PSP2.

[0180] Since the second portion PT2 can be fixed, a lower portion of the first portion PT1 adjacent to the second portion PT2 can be relatively less expanded. However, in embodiments, since the lower portion of the first portion PT1 adjacent to the second portion PT2 has a relatively smaller thickness than other portions of the first portion PT1, the lower portion of the first portion PT1 adjacent to the second portion PT2 can be easily expanded.

[0181] The expanded first portion PT1 can push the first bending portion BP1 of the display panel DP toward the outside of the first panel support PSP1. The first bending portion BP1 can move toward and be joined to the second bending portion BP2 of the window WIN adjacent to the first bending portion BP1. For example, the first bending portion BP1 can be joined to the second bending portion BP2 by the adhesive ADH disposed on the display panel DP.

[0182] Referring to Figure 17 , the air AIR can be provided to the first portion PT1 through the air injection hole AIH and the through hole AH. Accordingly, the first portion PT1 can maintain an expanded state.

[0183] The inflated first portion PT1 can be movable in the third direction DR3 to be away from the first bend BP1 and the second bend BP2 along the groove GOV. For example, the window fixing chuck FCK can be movable in the third direction DR3 to be away from the first portion PT1. However, embodiments are not limited thereto. For example, the panel support PSP can be movable in the third direction DR3 to be away from the window fixing chuck FCK. Alternatively, the window fixing chuck FCK and the panel support PSP can be movable in the third direction DR3 together to be away from each other.

[0184] Since the first bend BP1 can be engaged to the second bend BP2, the first bend BP1 and a portion of the guide film GFM engageable to the first bend BP1 can not be commonly movable with the first portion PT1. Since the portion of the guide film GFM engageable to the first bend BP1 can be away from the first portion PT1, the guide film GFM can be provided in the third direction DR3 while the roller ROL is rotated.

[0185] The inflated first portion PT1 can push the first flat portion PP1 of the display panel DP to the outside of the second panel support PSP2. The first flat portion PP1 can be moved toward and engaged to the second flat portion PP2 of the window WIN adjacent to the first flat portion PP1. For example, the first flat portion PP1 can be engaged to the second flat portion PP2 by an adhesive ADH disposed on the display panel DP.

[0186] Although the inflated first portion PT1 can be movable until the middle portion of the groove GOV in the drawing, the inflated first portion PT1 can be movable to the outside of the groove GOV, and the entire first flat portion PP1 can be engaged to the second flat portion PP2. The first bend BP1 can be engaged to the second bend BP2 by the above-described operation of the engagement device BOD, and then the first flat portion PP1 can be engaged to the second flat portion PP2.

[0187] Although not shown, the display panel DP can be engaged to the window WIN, and then the guide film GFM can be separated from the display panel DP.

[0188] A pressure of the air AIR provided to the first portion PT1 in a case where the first bend BP1 can be engaged to the second bend BP2 (hereinafter, referred to as a first air pressure) can be greater than a pressure of the air AIR provided to the first portion PT1 in a case where the first flat portion PP1 can be engaged to the second flat portion PP2 (hereinafter, referred to as a second air pressure). However, embodiments are not limited thereto. For example, the first air pressure can be equal to the second air pressure.

[0189] In a case where the display panel DP is coupled to the window WIN by inserting the curved display panel DP into the curved window WIN without using the coupling device BOD according to the embodiment, the first flat portion PP1 can be first coupled to the second flat portion PP2. In this case, a coupling failure in which the first curved portion BP1 can not be coupled to the second curved portion BP2 can occur.

[0190] However, since the display panel DP can be sequentially coupled from the first curved portion BP1 to the first flat portion PP1 by the coupling device BOD in the embodiment, the display panel DP can be further easily coupled to the window WIN. Accordingly, a coupling failure between the display panel DP and the window WIN can be prevented.

[0191] Figure 18 is a view illustrating a support portion to be coupled with a display panel and a window. Figure 19 is a view illustrating a display device manufactured by coupling a display panel, a window, and a support portion with each other.

[0192] Referring to Figure 18 The display panel DP and the window WIN coupled with each other in a curved structure can be coupled to a support portion SP. The support portion SP can be disposed between the first flat portions PP1 of the display panel DP. The support portion SP can include a bracket for supporting the display panel DP, a battery for supplying power to the display panel DP, and a system board for controlling an operation of the display panel DP.

[0193] Referring to Figure 18 and Figure 19 The first curved portion BP1 of the display panel DP can define a side display portion SSD of a display device DD. The first flat portion PP1 of the display panel DP can define a front display portion USD and a rear display portion LSD of the display device DD.

[0194] Each of the front display portion USD, the rear display portion LSD, and the side display portion SSD can display a predetermined image. For example, the front display portion USD can display a predetermined icon, and the side display portion SSD can display a date and weather. However, this is merely an example. For example, each of the front display portion USD and the side display portion SSD can display various images. Although not illustrated in terms of a perspective view, the rear display portion LSD can also display various images.

[0195] Hereinafter, various embodiments of a support will be described. Also, features of a support according to various embodiments, which can be different from the above-described support SUP, will be mainly described, and the same components are indicated by the same reference numerals.

[0196] Figure 20 is a view illustrating a configuration of a support according to an embodiment. Figure 21 is a view illustrating a configuration of a support according to an embodiment. Figure 20a schematic cross-sectional view taken along the line IV-IV' of FIG. 4.

[0197] As an example, in Figure 20 the top surface of the second panel support PSP2_1 of the support SUP_1 is shown, and the cross-section of the first panel support PSP1_1 and the diaphragm DPM in combination with the second panel support PSP2_1 of the support SUP_1 is shown.

[0198] Referring to Figure 20 and Figure 21 , the support SUP_1 can include the panel support PSP_1 and the diaphragm DPM, and the panel support PSP_1 can include the first panel support PSP1_1 and the second panel support PSP2_1.

[0199] The fastening holes FH_1 can be arranged in the first direction DR1 and disposed between the through holes AH. Except for the positions of the fastening holes FH_1, the support SUP_1 can have the same configuration as the support SUP in Figures 5 to 8 Each of the fastening holes FH_1 can include a fastening groove FG1 defined or formed in the first panel support PSP1_1 and a first fastening hole FH1_1 defined or formed in the second panel support PSP2_1.

[0200] The fastening unit FU can pass through the second panel support PSP2_1 and be inserted into the first panel support PSP1_1. When the fastening unit FU is inserted into the first fastening hole FH1_1 and the fastening groove FG1, the second panel support PSP2_1 can be fastened to the first panel support PSP1_1. Unlike the fixing unit FU in Figure 7 , the fixing unit FU in Figure 21 may not pass through the second portion PT2.

[0201] The second portion PT2 of the diaphragm DPM can be disposed between the first panel support PSP1_1 and the second panel support PSP2_1 without overlapping the fastening holes FH_1. Each of the fastening units FU can have a screw structure and fasten the second panel support PSP2_1 to the first panel support PSP1_1.

[0202] In a case where the fastening unit FU can be fastened while being inserted into the first fastening hole FH1_1 and the fastening groove FG1, the second panel support PSP2_1 can move toward the first panel support PSP1_1 to press the second portion PT2. Accordingly, the second portion PT2 can be fixed between the first panel support PSP1_1 and the second panel support PSP2_1 by the fastening unit FU.

[0203] Figure 22is a view showing a configuration of a support according to an embodiment. Figure 23 is a schematic cross-sectional view taken along Figure 22 line V-V' of

[0204] As an example, in Figure 22 a top surface of the second panel support PSP2_2 of the support SUP_2 is shown, and a cross section of the first panel support PSP1_2 and the diaphragm DPM_1 is shown in connection with the second panel support PSP2_2 of the support SUP_2.

[0205] Referring to Figure 22 and Figure 23 , the support SUP_2 can include the panel support PSP_2 and the diaphragm DPM_1, and the panel support PSP_2 can include the first panel support PSP1_2 and the second panel support PSP2_2. The fastening holes FH can not be defined or formed in the first panel support PSP1_2 and the second panel support PSP2_2.

[0206] The first panel support PSP1_2 and the second panel support PSP2_2 can be integrated with each other or can be unitary. Each of the through holes AH_1 can extend in the third direction DR3 and be disposed continuously from the second panel support PSP2_2 to the first panel support PSP1_2.

[0207] The diaphragm DPM_1 can be connected between the first panel support PSP1_2 and the second panel support PSP2_2. For example, the adhesive ADH_1 can be disposed between the first panel support PSP1_2 and the second panel support PSP2_2, and a lower portion of the diaphragm DPM_1 can be joined to a portion between the first panel support PSP1_2 and the second panel support PSP2_2.

[0208] Figure 24 is a view showing a configuration of a support according to an embodiment. Figure 25 is a schematic cross-sectional view taken along Figure 24 line VI- VI' of

[0209] As an example, in Figure 24 a plan view of the first panel support PSP1_3 of the support SUP_3 is shown, and a cross section of the second panel support PSP2 and the diaphragm DPM is shown in connection with the first panel support PSP1_3 of the support SUP_3.

[0210] Referring to Figure 24 and Figure 25The support SUP_3 can include a panel support PSP_3 and a diaphragm DPM, and the panel support PSP_3 can include a first panel support PSP1_3 and a second panel support PSP2.

[0211] Each of the through holes AH_2 can extend from the upper end of the first panel support PSP1_3 in the first direction DR1. For example, the through holes AH_2 can include a first through hole AH1 defined or formed in the first panel support PSP1_3, a second through hole AH2 defined or formed in the second panel support PSP2, and a third through hole AH3 defined or formed in the first panel support PSP1_3. The third through hole AH3 can be defined or formed in the upper end of the first panel support PSP1_3 and extend in the first direction DR1.

[0212] The first through hole AH1 can be arranged below the third through hole AH3 and extend from the third through hole AH3 in a third direction DR3. For example, the first through hole AH1 can share the third through hole AH3.

[0213] Figure 26 FIG. 1 is a view illustrating a configuration of a support according to an embodiment. Figure 27 is a view illustrating a configuration of a support according to an embodiment. Figure 26 is a schematic cross-sectional view taken along line VII-VII' of

[0214] As an example, a plan view of a first panel support PSP1_4 of a support SUP_4 is illustrated in Figure 26 and a cross section of a second panel support PSP2 and a diaphragm DPM is illustrated in connection with the first panel support PSP1_4 of the support SUP_4.

[0215] Referring to Figure 26 and 27 The support SUP_4 can include a panel support PSP_4 and a diaphragm DPM, and the panel support PSP_4 can include a first panel support PSP1_4 and a second panel support PSP2.

[0216] Each of the through holes AH_3 can include a first through hole AH1_1 defined or formed in the first panel support PSP1_4 and a second through hole AH2 defined or formed in the second panel support PSP2. The first through hole AH1_1 can be open through a curved surface of the first panel support PSP1_4. A lower portion of the first through hole AH1_1 can define an integral space or hole or cavity to overlap the second through hole AH2. Although two first through holes AH1_1 are illustrated, embodiments are not limited to this number of first through holes AH1_1.

[0217] Figure 28 FIG. 1 is a view illustrating a configuration of a support according to an embodiment.

[0218] As an example, Figure 28 is shown a cross section corresponding to Figure 8 is shown a cross section corresponding to

[0219] Referring to Figure 28 , the support SUP_5 can include the panel supports PSP and the diaphragm DPM_2, and the diaphragm DPM_2 can include a first portion PT1_1 and a second portion PT2_1. The diaphragm DPM_2 can have a thickness that is constant from the upper end of the first panel support PSP1 to the portion between the first panel support PSP1 and the second panel support PSP2. The first portion PT1_1 can have the same thickness as the second portion PT2_1.

[0220] Figure 29 is a view showing a configuration of a support according to an embodiment.

[0221] As an example, Figure 29 is shown a cross section corresponding to Figure 8 is shown a cross section corresponding to

[0222] Referring to Figure 29 , the support SUP_6 can include the panel supports PSP_5 and the diaphragm DPM, and the panel supports PSP_5 can include a first panel support PSP1_5 and a second panel support PSP2_3. The first panel support PSP1_5 can have a maximum width equal to the width of the second panel support PSP2_3, with respect to or based on the second direction DR2.

[0223] According to an embodiment, a first curved portion of a display panel can be joined to a second curved portion of a window that can be adjacent to the first curved portion, and then a first flat portion of the display panel can be joined to a second flat portion of the window that can be adjacent to the first flat portion. Thus, a joining failure between the first curved portion and the second curved portion can be prevented.

[0224] While embodiments of the present disclosure have been described, it is understood that the present disclosure should not be limited to these embodiments but various changes and modifications can be suggested to one ordinarily skilled in the art, within the spirit and scope of the present disclosure as hereinafter claimed. It is therefore desired that the scope of the present disclosure be determined not by the foregoing description but by the appended claims and their equivalents, and should not be bound by or limited to the foregoing detailed description.

Claims

1. A joining apparatus comprising: a first panel support; a second panel support arranged below the first panel support; a diaphragm arranged on and extending along the first panel support, the diaphragm being arranged between the first panel support and the second panel support; and a window fixing chuck arranged on the diaphragm, the window fixing chuck including a recess facing the diaphragm, wherein a through-hole extends from the second panel support to the first panel support, and the diaphragm is arranged on the through-hole, wherein a thickness of the diaphragm gradually decreases from an upper end of the first panel support to a portion between the first panel support and the second panel support, the thickness of the diaphragm is defined as a dimension between a front surface of the diaphragm facing the window fixing chuck and a back surface of the diaphragm facing the first panel support.

2. The joining apparatus according to claim 1, wherein the second panel support has a plate shape and extends in a third direction intersecting a plane defined by a first direction and a second direction intersecting the first direction, the plate shape being defined by the first direction and the third direction, and the first panel support and the recess extend in the first direction. the diaphragm is not arranged on side surfaces of the second panel support opposite to each other in the first direction and the second direction.

3. The joining device of claim 2, wherein, the first panel support, the second panel support, and the diaphragm are arranged in the recess of the window fixing chuck by moving the window fixing chuck in the third direction or moving the first panel support and the second panel support in the third direction.

4. The engagement device of claim 2, wherein, 5. The joining apparatus according to claim 2, wherein the diaphragm overlaps the first panel support, and the first panel support includes a curved surface protruding in an upward direction corresponding to the third direction, and the window fixing chuck includes a concave curved surface at an inner end of the recess of the window fixing chuck facing the curved surface of the first panel support. based on the second direction, the first panel support has a maximum width greater than a width of the second panel support.

6. The joining device of claim 5, wherein, the diaphragm includes:

7. The engagement device of claim 5, wherein, a first portion arranged on the curved surface of the first panel support; and a second portion arranged between the first panel support and the second panel support.

8. The joining apparatus according to claim 7, wherein the first portion of the diaphragm is arranged on the through-hole extending from the second panel support to the first panel support and is inflated by air injected through the through-hole, and the second portion of the diaphragm does not overlap the through-hole.

9. The joining apparatus according to claim 7, further comprising: a fastening unit fastening the second panel support to the first panel support and not overlapping the through-hole. ​ 10. The joining device of claim 9, wherein, The fastening unit passes through the second panel support and the second portion of the membrane, and is inserted into the first panel support.

11. The engagement device of claim 9, wherein, The fastening unit passes through the second panel support, is inserted into the first panel support, and does not pass through the second portion of the membrane.

12. The engagement device of claim 2, wherein, The through hole extends from an upper end of the first panel support in the first direction.

13. The engagement device of claim 2, wherein, Based on the second direction, the first panel support has a maximum width equal to the width of the second panel support.

14. The bonding apparatus of claim 1, wherein, The first panel support and the second panel support are integrated, and The membrane is bonded to a portion between the first panel support and the second panel support.

15. The engagement device of claim 1, wherein, The through hole includes: a plurality of first through holes formed in the first panel support; and a second through hole formed in the second panel support, wherein lower portions of the plurality of first through holes form an integrated space to overlap the second through hole.

16. The engagement device of claim 1, wherein, The thickness of the membrane is constant from an upper end of the first panel support to a portion between the first panel support and the second panel support.

17. A method of manufacturing a display apparatus, the method comprising: arranging a display panel on a membrane overlapping an upper portion of a panel support and on a side surface of the panel support; arranging a window in a groove of a window fixing chuck arranged above the membrane; arranging the panel support and the membrane in the groove of the window fixing chuck; bonding a first flat portion of the display panel arranged on the side surface of the panel support to a second flat portion of the window adjacent to the first flat portion of the display panel by inflating the membrane to move away from the first flat portion of the display panel, wherein the panel support comprises: a first panel support; and a second panel support arranged below the first panel support, wherein the membrane is arranged on and extends along the first panel support, the membrane is arranged between the first panel support and the second panel support, and a through hole extends from the second panel support to the first panel support, and the membrane is arranged on the through hole formed in the first panel support, wherein the thickness of the membrane gradually decreases from an upper end of the first panel support to a portion between the first panel support and the second panel support, the thickness of the membrane is defined as a dimension between a front surface of the membrane facing the window fixing chuck and a rear surface of the membrane facing the first panel support. ​ ​

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