Display device and equipment for manufacturing the same

Abstract

The present application relates to a display device and an apparatus for manufacturing the display device. The display device includes: a display panel including a main portion, a bent portion extending from one side of the main portion, and a sub-portion extending from one side of the bent portion; a driving board connected to one side of the sub-portion and overlapping with the main portion of the display panel in a thickness direction; and a protective member disposed between the display panel and the driving board, wherein the sub-portion is folded relative to the bent portion and attached to a rear surface of the main portion.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2020-0056922, filed on May 13, 2020, which is hereby incorporated by reference for all purposes as if fully set forth herein. Technical Field

[0003] Exemplary implementations of the present invention generally relate to a display device and an apparatus and method for manufacturing the display device, and more particularly, to a display device having a curved display panel and an apparatus and method for manufacturing the display device having a curved display panel. Background Art

[0004] The display device is a device that displays an image, and includes a display panel such as a liquid crystal display panel or an organic light emitting display panel including an organic light emitting diode (OLED) or a quantum dot electroluminescent (QD-EL) device.

[0005] Since display devices are applied to various electronic devices, display devices with various designs are required. For example, research is being conducted on display devices that bend edge portions of a display panel to display images not only on a front portion but also on side portions extending from the front portion.

[0006] A flexible printed circuit board on which electronic parts for controlling, for example, a touch panel are mounted may be attached to the display panel of such a display device.

[0007] The above information disclosed in this Background section is only for understanding the background of the present inventive concept and therefore it may contain information that does not constitute prior art. Summary of the invention

[0008] The applicant has found that when manufacturing a curved display panel including a display device, a distance between a bent portion of the display panel and another portion of the display panel may not be constant and the bent portion of the display panel may be easily damaged or deformed.

[0009] A display device having a curved display panel, an apparatus and a method for manufacturing the display device having a curved display panel according to exemplary embodiments of the present invention can maintain a constant distance between a bent portion of the curved display panel and another portion of the curved display panel.

[0010] A display device having a curved display panel, an apparatus and a method for manufacturing the display device having a curved display panel according to exemplary embodiments of the present invention can reduce stress applied to a flexible circuit board attached to the curved display panel.

[0011] Additional features of the inventive concept will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the inventive concept.

[0012] According to one aspect of the present invention, a display device includes: a display panel, including a main part, a bent part extending from one side of the main part, and a sub-part extending from one side of the bent part; a driving board, connected to one side of the sub-part and overlapping with the main part of the display panel in a thickness direction; and a protective member, arranged between the display panel and the driving board, wherein the sub-part is folded relative to the bent part and attached to the rear surface of the main part.

[0013] The main portion may include a flat main portion and a curved main portion extending from one side of the flat main portion, and the protection member may be provided on the flat main portion and the curved main portion.

[0014] The sub-portion may include a flat sub-portion and a curved sub-portion extending from one side of the flat sub-portion, and the protection member may be disposed between the flat main portion and the flat sub-portion and between the curved main portion and the curved sub-portion.

[0015] The protection member may be bent such that a portion of the protection member overlaps another portion of the protection member in a thickness direction.

[0016] The protective member may form a double layer on the curved main portion.

[0017] The protection member may include a protection film, a first adhesive member disposed on a surface of the protection film, and a second adhesive member disposed on the other surface of the protection film.

[0018] The display device may include: a main display surface; and a sub display surface inclined relative to the main display surface, wherein the flat main portion of the main portion may be disposed on the main display surface, and the curved main portion of the main portion is disposed on the sub display surface.

[0019] The display panel may include a base substrate, an active element layer, and a thin film encapsulation layer.

[0020] According to another aspect of the present invention, an apparatus for manufacturing a display device includes: a table including an upper surface on which a portion of a target object is mounted; a supporting unit provided on one side of the table at an angle to the table and including a side surface on which another portion of the target object is mounted; and a pressing unit on which a protective member is mounted, the pressing unit being configured to move toward the target object and press the protective member against the target object.

[0021] The supporting unit may include a first suction unit configured to move into close contact with another portion of the target object, and a second suction unit disposed between the first suction unit and the stage.

[0022] The first suction unit may include a vacuum suction cup.

[0023] The second suction unit may be configured to extend or retract to change the distance to the target object.

[0024] The second suction unit may include a link portion configured to be extended or shortened in one direction and a suction cup portion provided at one end of the link portion.

[0025] The pressing unit may include a first flat surface provided on a side facing the target object, a second flat surface inclined with respect to the first flat surface, and a curved surface connecting the first flat surface and the second flat surface.

[0026] An apparatus for manufacturing a display device may include a controller configured to control at least one of the console, the support unit, and the pressing unit, wherein the controller may be configured to control movement and rotation of the pressing unit based on pre-stored size information of the target object.

[0027] An apparatus for manufacturing a display device may include a camera configured to photograph a target object, wherein a controller may be configured to calculate a height difference between one side and another side of the target object based on information acquired from the camera, and determine whether the protective member has been attached in a correct position.

[0028] The angle between the stage and the supporting unit may be about 45 degrees to 135 degrees.

[0029] One side of the target object may be bent so that the target object has an "L" shaped cross-section.

[0030] The target object may include a target substrate and a flexible film, at least a portion of the target substrate may be mounted on the stage, and at least a portion of the flexible film may be mounted on the supporting unit.

[0031] According to another aspect of the present invention, an apparatus for manufacturing a display device includes: a table including an upper surface on which a portion of a target object is mounted; a supporting unit provided on one side of the table at an angle to the table and including a side surface on which another portion of the target object is mounted; and a coating unit configured to move toward the target object and coat the target object with a coating agent.

[0032] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the invention and together with the description serve to explain the inventive concept.

[0034] Figure 1 is a perspective view of an embodiment of a display device constructed according to the principles of the present invention.

[0035] Figure 2 is in the expanded state Figure 1 A plan view of a display panel and a driving board of a display device.

[0036] Figure 3 It is along Figure 1 A cross-sectional view taken along line A-A'.

[0037] Figure 4 yes Figure 3 An enlarged cross-sectional view of portion "B" of FIG.

[0038] Figure 5 is a cross-sectional view of a fourth sub-display region of another embodiment of a display device constructed according to the principles of the present invention.

[0039] Figure 6 is a cross-sectional view of a fourth sub-display region of another embodiment of a display device constructed according to the principles of the present invention.

[0040] Figure 7 is a cross-sectional view of a fourth sub-display region of another embodiment of a display device constructed according to the principles of the present invention.

[0041] Figure 8 is a perspective view of an embodiment of an apparatus for manufacturing a display device constructed according to the principles of the present invention.

[0042] Fig. 9 yes Figure 8 A side view of a display device manufacturing apparatus.

[0043] Fig.10 It is used to manufacture Figure 8 A side view of another embodiment of an apparatus of a display device.

[0044] Fig.11 , Fig.12 , Fig.13 and Fig.14 An embodiment of a method of manufacturing a display device according to the principles of the present invention is shown.

[0045] Fig.15 Another embodiment of a method of manufacturing a display device according to the principles of the present invention is shown.

[0046] Fig.16 , Fig.17 and Fig.18 Another embodiment of a method of manufacturing a display device according to the principles of the present invention is shown. DETAILED DESCRIPTION

[0047] In the following description, for the purpose of explanation, many specific details are set forth to provide a thorough understanding of various embodiments or implementations of the present invention. As used herein, "embodiment" and "implementation" are interchangeable words, which are non-limiting examples of devices or methods using one or more concepts in the inventive concept disclosed herein. However, it is apparent that various embodiments can be practiced without these specific details or with one or more equivalent arrangements. In other examples, known structures and devices are shown in block diagram form to avoid unnecessary confusion of various embodiments. In addition, various embodiments may be different, but do not have to be exclusive. For example, without departing from the inventive concept, the specific shape, configuration and characteristics of the embodiment may be used or implemented in another embodiment.

[0048] Unless otherwise specified, the embodiments shown should be understood as providing features of different details of some ways in which the inventive concept can be implemented in practice. Therefore, unless otherwise specified, the features, components, modules, layers, films, panels, regions and / or aspects of various embodiments (hereinafter, individually or collectively referred to as "elements") may be combined, separated, interchanged and / or rearranged without departing from the inventive concept.

[0049] The use of cross hatching and / or shading in the drawings is generally to make the boundaries between adjacent elements clear. Therefore, unless otherwise specified, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, ratio, commonality between illustrated elements and / or any other characteristics, attributes, properties, etc. of the elements. In addition, in the drawings, the size and relative size of the elements may be exaggerated for the purpose of clarity and / or description. When the embodiments can be implemented differently, the specific processing sequence can be performed differently from the described sequence. For example, two processes described in succession can be performed substantially simultaneously, or in an order opposite to the described order. In addition, the same reference numerals represent the same elements.

[0050] When an element, such as a layer, is referred to as being "on," "connected to," or "coupled to" another element or layer, it may be directly on, directly connected to, or coupled to, another element or layer, or there may be intervening elements or layers. However, when an element or layer is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers. For this purpose, the term "connected" may represent a physical connection, an electrical connection, and / or a fluid connection with or without the presence of an intervening element. In addition, the DR1 axis, the DR2 axis, and the DR3 axis are not limited to the three axes of a rectangular coordinate system (such as, the x-axis, the y-axis, and the z-axis), and may be interpreted in a broader sense. For example, the DR1 axis, the DR2 axis, and the DR3 axis may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purpose of this disclosure, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" may be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z, such as XYZ, XYY, YZ, and ZZ for example. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0051] Although the terms "first", "second", etc. can be used in this article to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another element. Therefore, without departing from the teachings of the present disclosure, the first element discussed below can be referred to as the second element.

[0052] Spatially relative terms such as "beneath," "below," "under," "lower," "above," "upper," "over," "higher," "side" (e.g., as in "sidewall"), and the like may be used herein for descriptive purposes, and thereby to describe the relationship of one element to another element(s) as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, elements described as being "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the term "below" may encompass both above and below orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0053] The terms used herein are for the purpose of describing a particular embodiment, rather than being intended to be limiting. Unless the context clearly indicates otherwise, as used herein, the singular forms "one", "an" and "the" are intended to also include plural forms. In addition, when used in this specification, the terms "comprising", "comprising", "including" and / or "including" represent the existence of stated features, integral bodies, steps, operations, elements, parts and / or their sets, but do not exclude the existence or addition of one or more other features, integral bodies, steps, operations, elements, parts and / or their sets. It should also be noted that, as used herein, the terms "substantially", "about" and other similar terms are used as approximate terms and not as degree terms, and are therefore used to allow for the inherent deviations in the measured values, calculated values ​​and / or provided values ​​that will be recognized by those of ordinary skill in the art.

[0054] Various embodiments are described herein with reference to cross-sectional views and / or exploded views that are schematic diagrams of idealized embodiments and / or intermediate structures. As such, deviations from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are expected. Therefore, the embodiments disclosed herein should not necessarily be interpreted as limited to the specific illustrated regional shapes, but rather include deviations in shapes due to, for example, manufacturing. In this manner, the regions shown in the drawings may be schematic in nature, and the shapes of these regions may not reflect the actual shapes of the regions of the device, and therefore, are not necessarily intended to be limiting.

[0055] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure belongs. Terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0056] The present invention will be described more fully hereinafter with reference to the accompanying drawings in which preferred embodiments of the present invention are shown. However, the present invention can be implemented in different forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided so that the present disclosure will be thorough and complete and will fully convey the scope of the present invention to those skilled in the art. Throughout the specification, the same reference numerals represent the same components. In the accompanying drawings, the thickness of layers and regions is exaggerated for clarity.

[0057] Hereinafter, specific embodiments will be described with reference to the accompanying drawings.

[0058] Figure 1 is a perspective view of an embodiment of a display device 1 constructed according to the principles of the present invention. Figure 2 is in the expanded state Figure 1 FIG. 1 is a plan view of a display panel 100 and a driving board FPCB of a display device 1 .

[0059] In the following description, the first direction DR1, the second direction DR2, and the third direction DR3 intersect each other in different directions. The first direction DR1 may be a length direction, the second direction DR2 may be a width direction, and the third direction DR3 may be a thickness direction. The third direction DR3 may include an upward direction toward the upper side in the drawings and a downward direction toward the lower side in the drawings. Therefore, a surface of a member that is disposed to face the upward direction may be referred to as an upper surface, and another surface of a member that is disposed to face the downward direction may be referred to as a lower surface. However, the above directions should be understood as relative directions, and embodiments are not limited to the above examples.

[0060] Examples of the display device 1 according to the embodiment may include various devices that display images. For example, examples of the display device 1 may include, but are not limited to, a smartphone, a mobile phone, a tablet personal computer (PC), a personal digital assistant (PDA), a portable multimedia player (PMP), a television, a game console, a watch-type electronic device, a head-mounted display, a display screen of a PC, a notebook computer, a car navigation system, a car dashboard, a digital camera, a video camera, an external billboard, an electronic board, various medical devices, various inspection devices, various home appliances such as refrigerators and washing machines including a display portion, and an Internet of Things (IoT) device.

[0061] Reference Figure 1 and Figure 2 , the display device 1 may have a rectangular shape in a plan view. In an embodiment, the display device 1 may have two long sides extending in the second direction DR2 and two short sides extending in the first direction DR1 intersecting the second direction DR2 in a plan view, and a corner of the display device 1 may have a curvature convex outward. However, the embodiment is not limited thereto, and the display device 1 may also have a different shape.

[0062] The display device 1 includes a main display surface 10 and a plurality of sub display surfaces 11 (eg, 11_1 , 11_2 , 11_3 , and 11_4 ).

[0063] The main display surface 10 may be disposed on the surface of the display device 1. The surface of the display device 1 may be the upper surface of the display device 1. The main display surface 10 may have a rectangular shape in a plan view. The size of the main display surface 10 may be greater than the size of each of the sub-display surfaces 11. The main display surface 10 may be a flat surface. In some embodiments, the main display surface 10 may include a curved surface.

[0064] The sub-display surface 11 is arranged in a plane different from the plane where the main display surface 10 is located. The size of each of the sub-display surfaces 11 may be smaller than the size of the main display surface 10. In an embodiment, the sub-display surface 11 may be arranged on a side surface between the upper surface and the lower surface of the display device 1. For example, the display device 1 may be a multi-faceted display device or a three-dimensional display device that displays images in at least two directions. The sub-display surface 11 may be connected to the main display surface 10. In detail, the sub-display surface 11 may be connected to the edge of the main display surface 10 so that the main display surface 10 and the sub-display surface 11 form a display surface having a curved portion. For example, the sub-display surface 11 may correspond to the curved portion. The width of each of the sub-display surfaces 11 (e.g., 11_1, 11_2, 11_3, and 11_4) may decrease toward the corner of the main display surface 10. The edge of each of the sub-display surfaces 11 may include a straight edge portion and a curved edge portion. For example, the straight edge portion may be arranged or interposed between the curved edge portions. In an embodiment, each of the sub display surfaces 11 may be bent to have an upwardly convex curvature, but the embodiment is not limited thereto.

[0065] The sub display surface 11 may include a first sub display surface 11_1 , a second sub display surface 11_2 , a third sub display surface 11_3 , and a fourth sub display surface 11_4 .

[0066] The first sub-display surface 11_1, the second sub-display surface 11_2, the third sub-display surface 11_3, and the fourth sub-display surface 11_4 may be respectively disposed on four sides of the main display surface 10. The first sub-display surface 11_1, the second sub-display surface 11_2, the third sub-display surface 11_3, and the fourth sub-display surface 11_4 may surround at least a portion of the main display surface 10. The first sub-display surface 11_1, the second sub-display surface 11_2, the third sub-display surface 11_3, and the fourth sub-display surface 11_4 may be symmetrically disposed with respect to the main display surface 10. For example, the first sub-display surface 11_1 and the second sub-display surface 11_2 may be symmetrically disposed with respect to each other (e.g., with respect to a second axis in the second direction DR2), and the third sub-display surface 11_3 and the fourth sub-display surface 11_4 may be symmetrically disposed with respect to each other (e.g., with respect to a first axis in the first direction DR1). The shapes and arrangements of the first sub-display surface 11_1, the second sub-display surface 11_2, the third sub-display surface 11_3, and the fourth sub-display surface 11_4 may be substantially the same or similar. The first sub-display surface 11_1, the second sub-display surface 11_2, the third sub-display surface 11_3, and the fourth sub-display surface 11_4 may be respectively arranged on Figure 1The sub display surfaces 11 in the left part, the right part, the upper part, and the lower part of the display device 1. In some embodiments, the sub display surface 11 may include only some of the first sub display surface 11_1, the second sub display surface 11_2, the third sub display surface 11_3, and the fourth sub display surface 11_4.

[0067] The display device 1 includes a display area DA and a non-display area NDA.

[0068] The display area DA displays an image. The pixels PX are disposed in the display area DA. The display area DA may include a main display area DA0 and a plurality of sub display areas DA1 (eg, DA1_1, DA1_2, DA1_3, and DA1_4).

[0069] The main display area DA0 is disposed on the main display surface 10. The sub-display areas DA1 (e.g., DA1_1, DA1_2, DA1_3, and DA1_4) are respectively disposed on the sub-display surfaces 11 (e.g., 11_1, 11_2, 11_3, and 11_4). The main display area DA0 and the sub-display area DA1 may be connected to form one area. In an embodiment, the main display area DA0 may be disposed only on the main display surface 10, and the sub-display area DA1 may be disposed only on the sub-display surface 11, but the embodiment is not limited thereto.

[0070] The sub display area DA1 may include a first sub display area DA1_1, a second sub display area DA1_2, a third sub display area DA1_3, and a fourth sub display area DA1_4.

[0071] The first sub-display area DA1_1, the second sub-display area DA1_2, the third sub-display area DA1_3, and the fourth sub-display area DA1_4 may be respectively disposed on the first sub-display surface 11_1, the second sub-display surface 11_2, the third sub-display surface 11_3, and the fourth sub-display surface 11_4. The first sub-display area DA1_1, the second sub-display area DA1_2, the third sub-display area DA1_3, and the fourth sub-display area DA1_4 may be separated from each other, or two or more of them may be connected to each other. In an embodiment, the first sub-display area DA1_1, the second sub-display area DA1_2, the third sub-display area DA1_3, and the fourth sub-display area DA1_4 may be separated from each other, and may each be connected to the main display area DA0. For example, the first sub-display area DA1_1, the second sub-display area DA1_2, the third sub-display area DA1_3, the fourth sub-display area DA1_4, and the main display area DA0 may form one area, but the embodiment is not limited thereto.

[0072] The non-display area NDA is disposed around the display area DA. The non-display area NDA may not display an image. The non-display area NDA may be an area other than the display area DA. In an embodiment, the non-display area NDA may have a band shape extending along the outermost edges of the main display surface 10 and the sub-display surface 11. Signal wiring or a driving circuit for transmitting a signal to the display area DA may be disposed in the non-display area NDA.

[0073] The display device 1 may include a display panel 100 and a driving board FPCB.

[0074] The display panel 100 provides a display screen. Examples of the display panel 100 include an organic light emitting display panel, a micron light emitting diode (LED) display panel, a nano LED display panel, a quantum dot light emitting display panel, a liquid crystal display panel, a plasma display panel, a field emission display panel, an electrophoretic display panel, an electrowetting display panel, etc. Hereinafter, an organic light emitting display panel will be described as an example of the display panel 100. However, the embodiment is not limited thereto, and other display panels are also applicable.

[0075] The display panel 100 may include a main portion MR, a bending portion BR, and a sub-portion SR.

[0076] In a plan view, the main portion MR may be in a rectangular shape with rounded corners. The main portion MR may have two short sides extending in the first direction DR1 and two long sides extending in the second direction DR2, but the embodiment is not limited thereto. The display area DA may be located in the main portion MR. The size of the main portion MR may be larger than that of the bending portion BR and the sub-portion SR.

[0077] The main portion MR may include a first rounded portion DRD1 , a second rounded portion DRD2 , a third rounded portion DRD3 , and a fourth rounded portion DRD4 .

[0078] The first rounded portion DRD1, the second rounded portion DRD2, the third rounded portion DRD3 and the fourth rounded portion DRD4 may be respectively disposed at the four corners of the main portion MR. In an embodiment, the first rounded portion DRD1, the second rounded portion DRD2, the third rounded portion DRD3 and the fourth rounded portion DRD4 may be respectively disposed at the four corners of the main display surface 10.

[0079] Each of the first rounded portion DRD1, the second rounded portion DRD2, the third rounded portion DRD3, and the fourth rounded portion DRD4 may be disposed between adjacent sub-display surfaces 11 (e.g., between adjacent sub-display areas DA1). For example, the first rounded portion DRD1 may be disposed between the first sub-display surface 11_1 and the fourth sub-display surface 11_4 (e.g., disposed between the first sub-display area DA1_1 and the fourth sub-display area DA1_4). One side of the first rounded portion DRD1 may be connected to an edge of the first sub-display surface 11_1, and the other side of the first rounded portion DRD1 may be connected to an edge of the fourth sub-display surface 11_4. In some embodiments, for example, the first rounded portion DRD1 may be disposed on the first sub-display surface 11_1, the main display surface 10, and the fourth sub-display surface 11_4 (e.g., disposed on the first sub-display area DA1_1, the main display area DA0, and the fourth sub-display area DA1_4). For example, the edge of the main display surface 10 and the edge of the sub display surface 11 disposed adjacent to each other at the corner of the main portion MR may form a rounded portion of the main portion MR.

[0080] The first rounded portion DRD1, the second rounded portion DRD2, the third rounded portion DRD3, and the fourth rounded portion DRD4 may have substantially the same curvature or different curvatures. Alternatively, at least two of the first rounded portion DRD1, the second rounded portion DRD2, the third rounded portion DRD3, and the fourth rounded portion DRD4 may have substantially the same curvature. In addition, each of the first rounded portion DRD1, the second rounded portion DRD2, the third rounded portion DRD3, and the fourth rounded portion DRD4 may have a substantially constant curvature or a varying curvature.

[0081] The bent portion BR may be connected to one side of the main portion MR. In an embodiment, the bent portion BR may be connected to one side of the main portion MR in the second direction DR2. In detail, the bent portion BR may be connected to a portion of the main portion MR disposed on the fourth sub-display surface 11_4. The bent portion BR may be as shown in FIG. Figure 3 , so that the sub portion SR is reversed or folded relative to the bent portion BR and thus overlaps the main portion MR in the thickness direction (eg, third direction DR3 ).

[0082] The sub-portion SR extends from the bent portion BR. The pad area may be provided in the sub-portion SR on the display panel 100. The driver chip IC may be mounted on (or attached to) the pad area. The driver chip IC may include an integrated circuit that drives the display panel 100. In an embodiment, the integrated circuit may be a data driver integrated circuit that generates and provides data signals. However, the embodiment is not limited thereto. In addition, the pad area may also include signal wiring pads and touch signal wiring pads for the display panel 100. As shown in FIG. Figure 3 As shown in FIG, the sub-portion SR may be reversed or folded with respect to the bent portion BR and thus overlap with the main portion MR in the thickness direction.

[0083] At least a portion of the sub-portion SR may be bent according to the shape of the sub-display surface 11 bent to have a predetermined curvature.

[0084] The driving board FPCB may have a rectangular shape in a plan view. However, the embodiment is not limited thereto. The driving board FPCB may be connected to one end of the sub-portion SR. In an embodiment, the driving board FPCB may be connected to one end of the sub-portion SR in the second direction DR2. The driving board FPCB may include a flexible printed circuit board or a flexible printed circuit film. In some embodiments, the driving board FPCB may be connected to the base substrate SUB at multiple points (see Figure 4 ).

[0085] Now refer to Figure 3 and Figure 4 A cross-sectional configuration of a display device 1 according to the embodiment is described.

[0086] Figure 3 It is along Figure 1 A cross-sectional view taken along line A-A'. Figure 4 yes Figure 3 An enlarged cross-sectional view of portion "B" of FIG.

[0087] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , in the cross-sectional view, an edge portion of the display panel 100 may be bent to have a curvature that convexes outward.

[0088] The main portion MR of the display panel 100 may include a flat portion MR_F and a curved portion MR_C.

[0089] The flat portion MR_F of the main portion MR is disposed in the main display area DA0 .

[0090] The curved portion MR_C of the main portion MR is disposed in the sub display area DA1. For example, the curved portion MR_C of the main portion MR may be disposed in the fourth sub display area DA1_4. The curved portion MR_C of the main portion MR may extend from one side of the flat portion MR_F. The curved portion MR_C of the main portion MR may be bent in the third direction DR3 to have an upwardly convex curvature.

[0091] The display area DA of the display device 1 may be disposed on the flat portion MR_F and the curved portion MR_C of the main portion MR. The display area DA of the display device 1 may be disposed on at least a portion of the flat portion MR_F and at least a portion of the curved portion MR_C of the main portion MR.

[0092] The sub portion SR may be attached to at least a portion of the main portion MR. In a cross-sectional view, the sub portion SR may have a shape corresponding to that of the main portion MR.

[0093] The sub-portion SR of the display panel 100 may include a flat portion SR_F and a curved portion SR_C.

[0094] The flat portion SR_F of the sub portion SR is disposed in the main display area DA0. At least a portion of the flat portion SR_F of the sub portion SR may be attached to a lower surface of the flat portion MR_F of the main portion MR through a protective member PM which will be described later.

[0095] The bent portion SR_C of the sub-portion SR is disposed in the fourth sub-display area DA1_4. The bent portion SR_C of the sub-portion SR may extend from one side of the flat portion SR_F of the sub-portion SR. The bent portion SR_C of the sub-portion SR may be bent in the thickness direction to have an upwardly convex curvature. At least a portion of the bent portion SR_C of the sub-portion SR may be attached to the lower surface of the bent portion MR_C of the main portion MR by a protective member PM (which will be described later).

[0096] The cross-sectional shape of the curved portion MR_C of the main portion MR and the curved portion SR_C of the sub-portion SR may correspond to the shape of the curved portion W_2 of the window substrate W (which will be described later). For example, the cross-sectional shape of the curved portion MR_C of the main portion MR and the curved portion SR_C of the sub-portion SR may be bent according to the shape of the curved portion W_2 of the window substrate W.

[0097] Reference Figure 4, the thickness TH1 of the base substrate SUB in the bent portion BR may be greater than the thickness TH2 of the base substrate SUB in other portions. In other words, the thickness TH1 of the base substrate SUB in the bent portion BR may be greater than the thickness TH2 of the base substrate SUB in the main portion MR and the sub-portion SR. The thickness TH1 of the base substrate SUB in the bent portion BR may be about 1.5 to 4 times or more the thickness TH2 of the base substrate SUB in other portions. However, the embodiment is not limited thereto.

[0098] Reference Figure 3 and Figure 4 , the display panel 100 may include a base substrate SUB, an active element layer ATL, and a thin film encapsulation layer ENP.

[0099] The base substrate SUB may be disposed in the main portion MR, the bending portion BR, and the sub-portion SR. The base substrate SUB may include a flexible polymer material such as polyimide. Therefore, the base substrate SUB may be bent, curved, folded, and curled. For example, the base substrate SUB may include a flexible substrate. Figure 3 As shown in , a portion of the base substrate SUB disposed in the sub-portion SR may be reversed or folded relative to the bending portion BR and thus overlap with another portion of the base substrate SUB disposed in the main portion MR in the thickness direction. The driving board FPCB may be connected to one side of the base substrate SUB disposed in the sub-portion SR.

[0100] The active element layer ATL is disposed on the surface of the base substrate SUB facing the window substrate W. The active element layer ATL may emit light that enables the display device 1 to display an image. The active element layer ATL may include a light emitting element and a thin film transistor, wherein the light emitting element emits light and the thin film transistor drives the light emitting element. The active element layer ATL may be disposed in the main portion MR. However, the embodiment is not limited thereto, and the active element layer ATL may also be disposed in the bending portion BR and / or the sub-portion SR.

[0101] The thin film encapsulation layer ENP may be disposed on the active element layer ATL. The thin film encapsulation layer ENP may cover the active element layer ATL to prevent the active element layer ATL from being exposed to moisture or air.

[0102] Reference Figure 1 , Figure 3 and Figure 4 , the display device 1 may further include a window member 200 .

[0103] The window member 200 may be disposed on the display panel 100 . The window member 200 covers and protects the display panel 100 .

[0104] The window member 200 may include a window substrate W and a printed layer PL disposed on the window substrate W.

[0105] The window substrate W may be made of a transparent material. The window substrate W may include, for example, glass or plastic. When the window substrate W includes plastic, the window substrate W may have a flexible property. The window substrate W may have a shape corresponding to the shape of the display panel 100. For example, the window substrate W may be bent or curved according to the shape of the display panel 100.

[0106] The window substrate W may include a flat portion W_1 and a curved portion W_2. The flat portion W_1 is a substantially flat area, and the planar shape of the flat portion W_1 corresponds to the planar shape of the display device 1 to which the window substrate W is applied. The curved portion W_2 may protrude outward from all sides (e.g., four sides in the drawings) of the display panel 100. In other words, the window substrate W may be larger than the display panel 100 in a plan view, and the curved portion W_2 may extend from the flat portion W_1 and protrude from the side surface of the display panel 100. The curved portion W_2 may be bent in a third direction DR3.

[0107] The printed layer PL may be disposed on the window substrate W. The printed layer PL may be disposed on a surface of the window substrate W and / or another surface. The printed layer PL may be disposed on an edge portion of the window substrate W and may be disposed in the non-display area NDA. The printed layer PL may be a light blocking layer or a decorative layer providing an aesthetic effect.

[0108] The display device 1 may further include a transparent bonding layer OCR.

[0109] The transparent bonding layer OCR attaches the window substrate W to the surface of the display panel 100. The transparent bonding layer OCR may include an optically transparent adhesive or an optically transparent resin.

[0110] For example, the display device 1 may further include a touch layer and a polarization member. The touch layer may be disposed on the thin film encapsulation layer ENP. The touch layer may include a plurality of touch electrodes. The touch electrodes may have a grid shape. The touch layer may be omitted.

[0111] A polarization member may be disposed on the display panel 100. The polarization member polarizes light passing therethrough. The polarization member may reduce reflection of external light.

[0112] For example, a cover panel may be provided on the other surface of the base substrate SUB. The cover panel may include a heat dissipation layer, a buffer layer, etc. In this case, the driving board FPCB located at one end of the base substrate SUB may be combined or attached to the cover panel and fixed to the cover panel.

[0113] Reference Figure 3 and Figure 4, the display device 1 may further include a protective member PM.

[0114] The protection member PM may be disposed on the display panel 100 and the driving board FPCB. In detail, the protection member PM may be disposed on the driving board FPCB and at least one of the main portion MR, the bending portion BR, and the sub-portion SR of the display panel 100.

[0115] The protective member PM may be disposed in a space formed between the display panel 100 and a driving board FPCB connected to the display panel 100. For example, the display panel 100 may be bent to have a "C" shape or a "U" shape in a cross-sectional view, and the protective member PM may be accommodated in the space formed between the display panel 100 and the driving board FPCB. In an embodiment, the protective member PM may be disposed between a main portion MR of the display panel 100 and a sub-portion SR of the display panel 100, and / or between the main portion MR of the display panel 100 and the driving board FPCB. In detail, the protective member PM may be disposed between a flat portion MR_F of the main portion MR and a flat portion SR_F of the sub-portion SR, between a curved portion MR_C of the main portion MR and a curved portion SR_C of the sub-portion SR, and / or between the main portion MR and the driving board FPCB.

[0116] The protection member PM may be bent or folded so that a portion of the protection member PM overlaps with another portion in the third direction DR3. For example, the protection member PM may be bent or folded so that at least a portion of the protection member PM forms a double layer. In an embodiment, the protection member PM may be bent or folded so that at least a portion disposed between the main portion MR of the display panel 100 and the sub-portion SR of the display panel 100 and / or disposed between the main portion MR of the display panel 100 and the driving board FPCB forms a double layer. One end and the other end of the protection member PM may be aligned in the thickness direction (e.g., the third direction DR3). For example, one end and the other end of the protection member PM may overlap with each other in the thickness direction.

[0117] The protective member PM may attach a portion of the display panel 100 to another portion of the display panel 100 and / or attach the display panel 100 to the driving board FPCB. The protective member PM may adjust the distance between a portion of the display panel 100 and another portion of the display panel 100 and / or between the display panel 100 and the driving board FPCB. In an embodiment, the protective member PM may attach the main portion MR of the display panel 100 to the sub-portion SR of the display panel 100 and adjust the distance between the main portion MR and the sub-portion SR.

[0118] The protection member PM may include a flat portion PM_F, a curved portion PM_C, and a bent portion PM_B.

[0119] The flat portion PM_F of the protection member PM may be disposed in the main display area DA0. The flat portion PM_F of the protection member PM may be disposed between the flat portion MR_F of the main portion MR and the flat portion SR_F of the sub portion SR and / or between the driving board FPCB and the flat portion MR_F of the main portion MR.

[0120] The bent portion PM_C of the protection member PM may be disposed in the fourth sub display area DA1_4. The bent portion PM_C of the protection member PM may be disposed between the bent portion MR_C of the main portion MR and the bent portion SR_C of the sub portion SR.

[0121] The bent portion PM_B of the protection member PM may be disposed on the bent portion BR of the display panel 100. In detail, the bent portion PM_B of the protection member PM may be received within the “C” shaped bent portion BR of the display panel 100.

[0122] Reference Figure 4 , the protection member PM may include a protection film PF and adhesive members TP1 and TP2.

[0123] The protection film PF protects the display panel 100 and / or the driving board FPCB by covering at least a portion of the display panel 100 and / or the driving board FPCB. The protection film PF may include a material having flexibility and durability, such as polyethylene terephthalate (PET), polycarbonate (PC), thermoplastic polyurethane (TPU), or polystyrene latex (PSL).

[0124] The adhesive members TP1 and TP2 cover at least a portion of the protective film PF. The adhesive members TP1 and TP2 attach the protective film PF to the display panel 100 and attach the protective film PF to the driving board FPCB. The adhesive members TP1 and TP2 may be double-sided tapes, but the embodiment is not limited thereto.

[0125] The adhesive members TP1 and TP2 may include a first adhesive member TP1 disposed on a surface of the protection film PF facing the display panel 100 and a second adhesive member TP2 disposed on another surface of the protection film PF opposite to the above surface of the protection film PF.

[0126] The protective member PM may be attached to the display panel 100 and the driving board FPCB by the apparatus 2 for manufacturing a display device. Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 and Fig.18 An apparatus 2 for manufacturing a display device and a method for manufacturing a display device are described in detail.

[0127] Figure 5 is a cross-sectional view of a fourth sub-display area DA1_4 of another embodiment of a display device 1 a constructed according to the principles of the present invention.

[0128] Figure 5 The display device 1a and Figures 1 to 4 The display device 1 is different in the placement of the protective member PM.

[0129] Reference Figure 5 The display device 1a may include a display panel 100, a driving board FPCB, and a protective member PM. The display device 1a may further include a window substrate W.

[0130] and Figure 1 , Figure 2 , Figure 3 and Figure 4 In the embodiment different from that of the embodiment, the protective member PM may be provided as a single layer on the flat portion MR_F of the main portion MR, but as a double layer on the curved portion MR_C. In detail, the protective member PM is provided only on the flat portion SR_F of the sub-portion SR, the curved portion SR_C of the sub-portion SR, the bent portion BR, and the curved portion MR_C of the main portion MR. Therefore, when the display panel 100 is bent at the bent portion BR, the protective member PM may be provided as a double layer, for example, in the fourth sub-display area DA1_4, but may be provided as a single layer in the main display area DA0. For example, the protective member PM may be folded or bent so that the portion provided only on the curved portion MR_C of the main portion MR forms a double layer.

[0131] A portion of the protective member PM disposed on the bent portion MR_C of the main portion MR of the display panel 100 may be shorter than another portion of the protective member PM disposed on the bent portion SR_C of the subportion SR of the display panel 100, the flat portion SR_F of the subportion SR, and the driving board FPCB.

[0132] A portion of the protection member PM disposed at a boundary between the main display area DA0 and the fourth sub display area DA1_4 may be bent due to a step formed by one end of the protection member PM disposed on the surface of the display panel 100 .

[0133] In some embodiments, the area in which the protection member PM is provided as a double layer may not necessarily coincide with the boundary of the sub display area DA1 or the main display area DA0 , and the protection member PM may be provided in a different manner.

[0134] In addition to the placement of the protective member PM, Figure 5 The display device 1a and Figure 1 , Figure 2 , Figure 3 and Figure 4 The display device 1 is substantially the same as or similar to that of FIG. 1 , and thus, for the convenience of description, redundant description thereof will be omitted.

[0135] Figure 6 is a cross-sectional view of a fourth sub-display area DA1_4 of another embodiment of a display device 1 b constructed according to the principles of the present invention.

[0136] Figure 6 The display device 1b and Figure 5 The display device 1a differs in the placement of the protective member PM.

[0137] Reference Figure 6 The display device 1b may include a display panel 100, a driving board FPCB, and a protective member PM. The display device 1b may further include a window substrate W.

[0138] and Figure 5 Differently in the embodiment, the length of a portion of the protective member PM disposed on the curved portion MR_C and the flat portion MR_F of the main portion MR of the display panel 100 may be longer than the length of another portion of the protective member PM disposed on the curved portion SR_C of the sub-portion SR of the display panel 100.

[0139] One end and the other end of the protection member PM may not be aligned in the thickness direction. For example, one end and the other end of the protection member PM may not overlap each other in the thickness direction. In detail, one end of the protection member PM may be disposed between the flat portion MR_F of the main portion MR of the display panel 100 and the driving board FPCB, and the other end of the protection member PM may be disposed between the curved portion MR_C of the main portion MR of the display panel 100 and the curved portion SR_C of the sub-portion SR. One end of the protection member PM disposed between the flat portion MR_F of the main portion MR of the display panel 100 and the driving board FPCB may be an end portion located above the other end.

[0140] A portion of the display panel 100 disposed at a boundary between the main display area DA0 and the fourth sub display area DA1_4 may be bent due to a step formed by one end of the protection member PM disposed on the surface of the display panel 100 .

[0141] In addition to the placement of the protective member PM, Figure 6 The display device 1b and Figure 5The display device 1a is substantially the same as or similar to that of FIG. 1 , and thus a redundant description thereof will be omitted for the convenience of description.

[0142] Figure 7 is a cross-sectional view of a fourth sub-display area DA1_4 of another embodiment of a display device 1 c constructed according to the principles of the present invention.

[0143] Figure 7 The display device 1c and Figure 1 , Figure 2 , Figure 3 and Figure 4 The display device 1 of FIG. 1 is different in the placement of the protective member PM.

[0144] Reference Figure 7 The display device 1c may include a display panel 100, a driving board FPCB, and a protective member PM. The display device 1c may further include a window substrate W.

[0145] and Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In different embodiments, the protective member PM may be provided as a single layer. Specifically, the protective member PM may be provided as a single layer between the curved portion MR_C of the main portion MR of the display panel 100 and the curved portion SR_C of the sub-portion SR, between the flat portion MR_F of the main portion MR of the display panel 100 and the flat portion SR_F of the sub-portion SR, and / or between the flat portion MR_F of the main portion MR of the display panel 100 and the driving board FPCB.

[0146] A gap EM may be formed between the bent portion BR of the display panel 100 and the protective member PM. In detail, the gap EM may be formed between a 'C' shaped inner surface formed by the bent portion BR of the display panel 100 and one end of the protective member PM.

[0147] In addition to the placement of the protective member PM, Figure 7 The display device 1c and Figure 1 , Figure 2 , Figure 3 and Figure 4 The display device 1 is substantially the same as or similar to that of FIG. 1 , and thus, for the convenience of description, redundant description thereof will be omitted.

[0148] An apparatus 2 for manufacturing a display device (also referred to as a display device manufacturing apparatus 2 ) according to an embodiment will now be described.

[0149] Figure 8is a perspective view of an embodiment of an apparatus 2 for manufacturing a display device constructed in accordance with the principles of the present invention. Fig. 9 yes Figure 8 A side view of a display device manufacturing apparatus 2 is shown.

[0150] The display device manufacturing apparatus 2 may attach the protective member PM to the target object T.

[0151] The target object T may include a target substrate S and a flexible film F attached to the target substrate S. The target object T may further include a cover member CM.

[0152] Examples of the target substrate S may include various types of panels or substrates such as a display panel and a touch panel, and examples of the flexible film F may include various types of film members or a flexible circuit board.

[0153] The target substrate S and the flexible film F may have flexibility. In an embodiment, one side of the target substrate S may be bent upward so that the target substrate S has an "L"-shaped cross-section, and the flexible film F may be attached to the one side of the target substrate S at an angle to the other side of the target substrate S. For example, the flexible film F may be attached to one side of the target substrate S at a right angle to the other side of the target substrate S.

[0154] The cover member CM covers at least a portion of the target substrate S. For example, Figure 8 In the embodiment, the cover member CM may cover at least a portion of the lower surface of the target substrate S. The cover member CM may have a shape corresponding to the shape of the target substrate S. In an embodiment, one side of the cover member CM may be bent upward so that the cover member CM has an "L"-shaped cross-section.

[0155] The target substrate S, the flexible film F, and the cover member CM may have a rectangular shape in a plan view, but the embodiment is not limited thereto.

[0156] The protective member PM is attached to both the target substrate S and the flexible film F. The protective member PM may be mounted on a pressing unit 230 (which will be described later), and then the protective member PM is transferred to the target substrate S and the flexible film F by pressing of the pressing unit 230. The protective member PM may include a protective film PF and a plurality of adhesive members, wherein the plurality of adhesive members are respectively provided on a surface of the protective film PF pressed against the target object T and on another surface opposite to the above surface. The plurality of adhesive members may be a double-sided tape to which a release paper is attached.

[0157] In an embodiment, the target object T may be Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In detail, the target substrate S, the flexible film F, the cover member CM and the protection member PM may be respectively Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The display panel 100, the driving board FPCB, the window substrate W and the protective member PM. For example, Figure 8 The target object T can be turned upside down. Figure 1 The display panel 100, the driving board FPCB and the window substrate W are shown in FIG. The protective film PF and the adhesive member may be Figure 4 Here, the target object T may be the display panel 100, the driving board FPCB, and the window substrate W in a state where the protective member PM is not attached and the sub-portion SR and the bending portion BR of the display panel 100 are not completely bent.

[0158] Reference Figure 8 and Fig. 9 , the display device manufacturing apparatus 2 may include a stage 210 , a supporting unit 220 , a pressing unit 230 , and a controller 250 . The display device manufacturing apparatus 2 may further include a camera 240 .

[0159] The stage 210 provides a space in which at least a portion of the target object T can be installed. The stage 210 may extend in one direction and include a substantially flat upper surface. One direction may be a horizontal direction (e.g., a first direction DR1 or a second direction DR2). At least a portion of the target object T may be installed on the upper surface of the stage 210. At least a portion of the target object T may be a covering member CM. In an embodiment, one side of the target object T may be bent upward so that the target object T has an "L"-shaped cross-section. One end of the target object T may be installed on the stage 210, and the other end of the target object T may be installed on the support unit 220 (which will be described later). In some embodiments, the stage 210 may include a clamping member for fixing the target object T. The clamping member may use vacuum, static electricity, and / or van der Waals forces to fix the target object T. In some embodiments, the stage 210 may move and / or rotate in at least one of the first direction DR1, the second direction DR2, and the third direction DR3. Therefore, the stage 210 may adjust the position and direction of the target object T.

[0160] The support unit 220 may be disposed on one side of the stage 210. The support unit 220 may be spaced apart from the stage 210. At least a portion of the target object T may be mounted and supported on the support unit 220. At least a portion of the target object T may be a portion of the flexible film F. For example, the target object T may be mounted on the stage 210 and the support unit 220. In an embodiment, the target object T may be disposed on an upper surface of the stage 210 extending in one direction, and on a side surface of the support unit 220 extending in another direction. The support unit 220 may be tilted relative to the stage 210. The support unit 220 may be disposed at a predetermined angle θ with the stage 210. For example, the stage 210 may be disposed in a horizontal direction, and the support unit 220 may be disposed in a vertical direction. In an embodiment, the predetermined angle θ may be about 45 degrees to 135 degrees. In some embodiments, the predetermined angle θ may be about 60 degrees to 120 degrees. In some embodiments, the predetermined angle θ may be about 90 degrees. The support unit 220 may move in at least one of the first direction DR1, the second direction DR2, and the third direction DR3. In some embodiments, the display device manufacturing apparatus 2 may further include a support unit driver DR_VP that drives the support unit 220, and the support unit driver DR_VP may adjust the distance between the support unit 220 and the stage 210 and / or the position of the support unit 220 relative to the stage 210 by moving the support unit 220 in the second direction DR2.

[0161] The support unit 220 may include a first suction unit 221 and a second suction unit 222. The support unit 220 may further include a fixing member 223.

[0162] The first suction unit 221 may be disposed on one side of the stage 210 and may be shaped like a vertically long block. A portion of the flexible film F may be mounted on a surface of the first suction unit 221 facing the stage 210. The first suction unit 221 may include a clamping member for fixing the flexible film F. For example, the first suction unit 221 may include a suction member 221_H such as a vacuum pad.

[0163] The second suction unit 222 may be disposed below the first suction unit 221. In detail, the second suction unit 222 may be disposed in a space between the bottom of the first suction unit 221 and the upper surface of the table 210. The second suction unit 222 may move and / or extend or shorten in the second direction DR2. Therefore, the distance between the second suction unit 222 and the target object T may be adjusted so that the second suction unit 222 may be moved to be in close contact with the target object T or to be spaced apart from the target object T. When the pressing unit 230 (which will be described later) presses the surface of the target object T, the second suction unit 222 sucks and supports the other surface of the target object T to prevent the target object T from being deformed or damaged due to the pressing of the target object T.

[0164] The second suction unit 222 may include a motor 222_3 , a link portion 222_2 , and a suction cup portion 222_1 .

[0165] The motor 222_3 provides power for moving and / or extending or shortening the link portion 222_2.

[0166] The link part 222_2 moves and / or stretches or shortens in the second direction DR2. The link part 222_2 may include a hydraulic / pneumatic cylinder or an articulated link mechanism whose length can be adjusted.

[0167] The suction cup portion 222_1 is disposed at one end of the link portion 222_2. When the length or position of the link portion 222_2 is adjusted, the distance between the suction cup portion 222_1 and the flexible film F can be adjusted. Therefore, the suction cup portion 222_1 can be moved to be in close contact with the flexible film F, or to be spaced apart from the flexible film F. For example, the suction cup portion 222_1 may include a suction member such as a vacuum suction cup.

[0168] The fixing member 223 may be disposed on the other surface of the first suction unit 221. The fixing member 223 may fix the second suction unit 222 to the first suction unit 221.

[0169] The pressing unit 230 is spaced apart from the stage 210 and the supporting unit 220. The pressing unit 230 may move and / or rotate in at least one of the first direction DR1, the second direction DR2, and the third direction DR3. In an embodiment, the display device manufacturing apparatus 2 may further include a pressing unit driver DR_P that moves the pressing unit 230, and the pressing unit driver DR_P may move the pressing unit 230 in the second direction DR2 and the third direction DR3, and rotate the pressing unit 230 in a clockwise or counterclockwise direction around a first axis RX in the first direction DR1. Therefore, the distance between the pressing unit 230 and the stage 210, between the pressing unit 230 and the supporting unit 220, and / or between the pressing unit 230 and the target object T may be adjusted. In some embodiments, the pressing unit driver DR_P may include a mechanical arm that moves and / or rotates the pressing unit 230. In some embodiments, the pressing unit driver DR_P may further include at least one of a motor, a cylinder, and a reducer. The pressing unit 230 may have a protective member PM mounted thereon. The pressing unit 230 may include a clamping member for fixing the protective member PM. The pressing unit 230 may include, for example, a vacuum hole or a vacuum cup. At least one surface of the pressing unit 230 may have a shape corresponding to the shape of the portion of the target object T to be pressed.

[0170] The pressing unit 230 may include a first flat surface 230_F1 , a second flat surface 230_F2 , and a curved surface 230_C.

[0171] The first flat surface 230_F1, the second flat surface 230_F2, and the curved surface 230_C may be disposed to face the target object T. The first flat surface 230_F1, the second flat surface 230_F2, and the curved surface 230_C may have a shape corresponding to the shape of the surface of the target object T. In an embodiment, the first flat surface 230_F1 may extend in the second direction DR2, the second flat surface 230_F2 may extend in the third direction DR3, and the curved surface 230_C may connect one side of the first flat surface 230_F1 and one side of the second flat surface 230_F2. The curved surface 230_C may have a curvature that bulges outward. The first flat surface 230_F1, the second flat surface 230_F2, and the curved surface 230_C may include at least one vacuum hole.

[0172] The protection member PM may be mounted on at least one of the first flat surface 230_F1, the curved surface 230_C, and the second flat surface 230_F2. In an embodiment, the protection member PM may be mounted on the first flat surface 230_F1 and the curved surface 230_C. In some embodiments, the protection member PM may be mounted on the curved surface 230_C and the second flat surface 230_F2.

[0173] The pressing unit 230 may be configured to be movable or rotatable according to the shape of the bent portion of the target object T, and may have a shape corresponding to the shape of the portion to be pressed of the target object T. The corresponding shape of the pressing unit 230 may minimize the stress applied to the target object T, thereby reducing deformation or damage of the target object T caused by pressing.

[0174] The controller 250 controls the overall drive of the display device manufacturing equipment 2. In an embodiment, the controller 250 may control at least one of the console 210, the support unit 220, the pressing unit 230, and the camera 240. Specifically, the controller 250 may control the support unit driver DR_VP to align the target object T in the correct position or the target position. In addition, the controller 250 may control the pressing unit driver DR_P to press the protection member PM in the correct position on the target object T with a minimum pressure based on the hardness information, size information, and curvature information of the pressed part of the target object T stored in advance. In addition, the controller 250 may obtain the alignment information of the target object T from the camera 240 (which will be described later), and determine whether the target object T has been aligned and / or whether the protection member PM has been attached in the correct position. For example, the controller 250 may calculate the height difference between one side and the other side of the target object T based on the shooting information obtained from the camera 240, and determine whether the protection member PM has been attached in the correct position by comparing the obtained shooting information with the pre-stored reference range.

[0175] The camera 240 is disposed on one side of the stage 210. In an embodiment, the camera 240 may be disposed behind the support unit 220. In some embodiments, the camera 240 may be disposed between the support unit 220 and the stage 210. The camera 240 acquires alignment information related to the alignment of the target object T by photographing the target object T. The alignment information may include a height difference between one side of the target object T and the other side of the target object T. For example, the height difference may be a height difference between one side of the target substrate S and the other side of the target substrate S, or a height difference between one side of the flexible film F and the other side of the flexible film F. In some embodiments, the display device manufacturing apparatus 2 may further include a visual system using the camera 240.

[0176] Fig.10is a side view of an embodiment of an apparatus 2a for manufacturing a display device constructed in accordance with the principles of the present invention.

[0177] Fig.10 The display device manufacturing equipment 2a and Figure 8 The display device manufacturing apparatus 2 is different in that it includes a coating unit 260 instead of the pressing unit 230 .

[0178] Reference Fig.10 , the display device manufacturing apparatus 2a may include a stage 210 , a supporting unit 220 , a coating unit 260 , and a controller 250 . The display device manufacturing apparatus 2a may further include a camera 240 .

[0179] The coating unit 260 is spaced apart from the stage 210 and the supporting unit 220. The coating unit 260 may move and / or rotate in at least one of the first direction DR1, the second direction DR2, and the third direction DR3. In an embodiment, the display device manufacturing apparatus 2a may further include a coating unit driver DR_D that moves the coating unit 260, and the coating unit driver DR_D may move the coating unit 260 in the second direction DR2 and the third direction DR3, and rotate the coating unit 260 in a clockwise or counterclockwise direction around a first axis RX in the first direction DR1. Therefore, the distance between the coating unit 260 and the stage 210, between the coating unit 260 and the supporting unit 220, and / or between the coating unit 260 and the target object T may be adjusted. In some embodiments, the coating unit driver DR_D may include a mechanical arm that moves and / or rotates the coating unit 260. In some embodiments, the coating unit driver DR_D may further include at least one of a motor, a cylinder, and a reducer.

[0180] The coating unit 260 may spray a coating agent to the target object T. The sprayed coating agent may be cured to form a protective layer on a portion of the target object T. The coating agent may include an adhesive. In an embodiment, the coating unit 260 may include, for example, a non-contact dispenser such as a spray valve.

[0181] Fig.10 The display device manufacturing apparatus 2a is similar to the display device manufacturing apparatus 2a except that it includes a coating unit 260 instead of the pressing unit 230. Figure 8 The display device manufacturing apparatus 2 is substantially the same as or similar to that of FIG. 1 , and thus, for the convenience of description, redundant description thereof will be omitted.

[0182] Now refer to Fig.11 , Fig.12 , Fig.13 , Fig.14 and Fig.15 A method of manufacturing a display device is described.

[0183] Fig.11 , Fig.12 , Fig.13 and Fig.14 An embodiment of a method of manufacturing a display device according to the principles of the present invention is shown.

[0184] Fig.11 is a flowchart illustrating a method of manufacturing a display device according to an embodiment. Fig.12 A process of mounting the target object T on the stage 210 and the supporting unit 220 is shown. Fig.13 A process in which the pressing unit 230 moves toward the target object T is shown. Fig.14 A process in which the pressing unit 230 presses the protection member PM against the target object T is shown.

[0185] The display device manufacturing method may include: Figure 8 The display device manufacturing equipment 2 is performed.

[0186] Reference Figures 11 to 14 , the display device manufacturing method may include: mounting a target object T on a stage 210 and a supporting unit 220 inclined relative to the stage 210 (step S101); and attaching a protection member PM to a curved portion of the target object T between the stage 210 and a vacuum suction cup portion 222_1 by moving a pressing unit 230 on which a protection member PM is mounted in at least one direction (step S102).

[0187] Mounting the target object T on the stage 210 and the support unit 220 tilted relative to the stage 210 may further include mounting a portion of the display panel 100 on an upper surface of the stage 210 and mounting a portion of the flexible film F on a side surface of the support unit 220, aligning the target object T by moving the stage 210, and adjusting an angle between the stage 210 and the support unit 220.

[0188] Attaching the protective member PM to the curved portion of the target object T between the stage 210 and the vacuum suction cup portion 222_1 by moving the pressing unit 230 on which the protective member PM is mounted in at least one direction may include: rotating the pressing unit 230 according to the shape of the portion of the target object T to be pressed, and bringing the pressing unit 230 into close contact with the target object T.

[0189] The display device manufacturing method may further include measuring a height difference of the target object T after attaching the protection member PM, and determining whether the height difference satisfies an error criterion.

[0190] The display device manufacturing method is not limited to the above example, and refers to Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 and Fig.18 At least some of the operations may be omitted, or at least one additional operation may be further included. The display device manufactured by the display device manufacturing method includes Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 Display devices 1, 1a, 1b, 1c.

[0191] Now refer to Fig.12 , Fig.13 and Fig.14 A method for manufacturing a display device is described in detail.

[0192] Reference Fig.12 , the target object T is mounted on the stage 210 and the support unit 220, and the support unit 220 is arranged to form a predetermined angle θ with the stage 210. In an embodiment, the predetermined angle θ may be about 45 degrees to 135 degrees. In some embodiments, the predetermined angle θ may be about 60 degrees to 120 degrees. In some embodiments, the predetermined angle θ may be about 90 degrees. In an embodiment, the support unit 220 may be configured to be movable and / or rotatable in at least one direction to adjust the predetermined angle θ.

[0193] One side of the target object T is bent so that the target object T has an "L"-shaped cross-section. In an embodiment, a first flat portion T_F1 of the target object T extending in the first direction DR1 may be mounted on the upper surface of the stage 210, and a second flat portion T_F2 of the target object T extending in the third direction DR3 may be mounted on one side of the support unit 220 extending in the third direction DR3. A curved portion T_C between the first flat portion T_F1 and the second flat portion T_F2 of the target object T may be disposed in a space between the stage 210 and the support unit 220. Here, the curved portion T_C of the target substrate S of the target object T may be supported by the curved portion T_C of the cover member CM.

[0194] The camera 240 can obtain alignment information of the target substrate S and the flexible film F of the target object T mounted on the stage 210 and the supporting unit 220, and the stage 210 and / or the supporting unit 220 can move and / or rotate based on the alignment information to align the target substrate S and the flexible film F in a correct position or target position.

[0195] The protective member PM is mounted on the pressing unit 230. The protective member PM may be mounted through a vacuum hole or a vacuum cup of the pressing unit 230. The protective member PM may include a protective film PF, and a double-sided tape may be attached to a surface of the protective film PF facing the target object T and another surface of the protective film PF facing the pressing unit 230. The double-sided tape may have a release paper attached thereto. Here, the release paper may be removed from the double-sided tape provided on the surface of the protective film PF facing the target object T.

[0196] Reference Fig.13 , after the target object T is mounted, the pressing unit 230 moves and / or rotates in at least one direction. In an embodiment, the pressing unit 230 may move in the second direction DR2 and the third direction DR3, and rotate in a clockwise direction or a counterclockwise direction around the first axis RX in the first direction DR1. The pressing unit 230 may move toward the portion of the target object T to be pressed. The portion of the target object T to be pressed may include a portion to which the protective member PM is to be attached. The pressing unit 230 may rotate according to the shape of the area to be pressed of the target object T, for example, according to the curvature of the curved portion T_C and the angle between the first flat portion T_F1 and the second flat portion T_F2, thereby adjusting the angles of the first flat surface 230_F1, the second flat surface 230_F2, and the curved surface 230_C of the pressing unit 230. Therefore, the stress applied to the target object T by pressing may be minimized and / or optimized.

[0197] The protection member PM may be installed on at least a portion of the outer surface of the pressing unit 230 facing the target object T. Therefore, the protection member PM may be selectively attached to some areas of the target object T. In an embodiment, the areas of the target object T may be the second flat portion T_F2 and the curved portion T_C of the target object T, and the protection member PM may be disposed on the second flat surface 230_F2 and the curved surface 230_C.

[0198] Before the pressing unit 230 moves to be in close contact with the target object T, the second suction unit 222 may be stretched in the second direction DR2 to support the surface of the flexible film F. The surface of the flexible film F may be a surface opposite to a surface to be pressed by the pressing unit 230. In an embodiment, the link portion 222_2 of the second suction unit 222 may be stretched toward the flexible film F by a motor 222_3, and the suction cup portion 222_1 provided at one end of the link portion 222_2 may suck the surface of the flexible film F.

[0199] Reference Fig.14, the pressing unit 230 may press the protection member PM against the target object T. The protection member PM may be moved to be in close contact with the target object T, and then transferred from the pressing unit 230 to the target object T. After performing sufficient pressing for attaching the protection member PM, the pressing unit 230 may release the protection member PM so that it may be separated from the portion of the target object T to which the protection member PM has been attached.

[0200] After attaching the protection member PM, the camera 240 may photograph the target object T to measure a height difference between one side of the target object T and the other side of the target object T. The sides of the target object T include edges or corners of a portion of each of the target substrate S, the flexible film F, and the protection member PM.

[0201] When the height difference is within the reference range, the attachment process of the protective member PM can be completed. When the height difference is outside the reference range, the pressing unit 230 can press the protective member PM against the target object T again. Here, the pressing unit 230 can move and / or rotate in at least one direction to adjust the position and / or arrangement of the target object T and the protective member PM.

[0202] Fig.15 Another embodiment of a method of manufacturing a display device according to the principles of the present invention is shown.

[0203] Fig.15 Display device manufacturing method and Fig.14 The display device manufacturing method of the embodiment is different in that the protection member PM is installed on the pressing unit 230 .

[0204] Reference Fig.15 , the protection member PM may be installed only on the curved surface 230_C and the first flat surface 230_F1 of the pressing unit 230. Therefore, the protection member PM may be attached only to the curved portion T_C and the first flat portion T_F1 of the target object T. In some embodiments, the protection member PM may be attached only to the curved portion T_C of the target object T.

[0205] For example, the protection member PM may be attached to at least one of the first flat portion T_F1 , the curved portion T_C, and the second flat portion T_F2 of the target object T in various ways.

[0206] Except for the portion where the protection member PM is mounted on the pressing unit 230, Fig.15 Display device manufacturing method and Fig.14 The manufacturing method of the display device is substantially the same or similar, and thus, for the convenience of description, redundant description thereof will be omitted.

[0207] Fig.16 , Fig.17and Fig.18 Another embodiment of a method of manufacturing a display device according to the principles of the present invention is shown.

[0208] Fig.16 A process of mounting the target object T on the stage 210 and the supporting unit 220 is shown. Fig.17 A process in which the coating unit 260 coats the target object T with the coating agent is shown. Fig.18 A target object T on which a protective layer has been formed is shown.

[0209] Fig.16 , Fig.17 and Fig.18 Display device manufacturing method and Fig.11 , Fig.12 , Fig.13 and Fig.14 The display device manufacturing method of the embodiment is different in that a coating unit 260 is used instead of the pressing unit 230 .

[0210] Fig.16 , Fig.17 and Fig.18 The display device manufacturing method can be Fig.10 The display device manufacturing equipment 2a is performed.

[0211] Reference Fig.16 , Fig.17 and Fig.18 , the display device manufacturing method may include: mounting a target object T on a stage 210 and a support unit 220 tilted relative to the stage 210; and coating a coating agent AD on a curved portion T_C of the target object T between the stage 210 and the vacuum suction cup portion 222_1 by moving a coating unit 260 in at least one direction.

[0212] Reference Fig.16 , the target object T may be mounted on the stage 210 and the support unit 220 , wherein the support unit 220 is disposed at a predetermined angle θ with the stage 210 .

[0213] Reference Fig.17 , after the target object T is mounted, the coating unit 260 moves and / or rotates in at least one direction. The coating unit 260 may move toward a portion of the target object T to be coated with the coating agent AD.

[0214] When the coating unit 260 is located at an appropriate distance from the target object T for coating, the coating unit 260 sprays the coating agent AD to the target object T. Here, the coating unit 260 may spray the coating agent AD while moving and / or rotating in at least one direction. The coating unit 260 may selectively spray the coating agent AD to some areas of the target object T. In an embodiment, the coating unit 260 may spray the coating agent AD to a portion of the second flat portion T_F2 of the target object T and the curved portion T_C of the target object T.

[0215] Reference Fig.18 After applying a sufficient amount of the coating agent AD, the coating unit 260 may leave the position where the coating has been performed. The coating agent AD may be cured to form a protective member PM on the target object T. The protective member PM may be a protective layer.

[0216] Fig.16 , Fig.17 and Fig.18 The display device manufacturing method of the present invention is similar to the display device manufacturing method of the present invention except that the coating unit 260 is used instead of the pressing unit 230. Fig.11 , Fig.12 and Fig.14 The manufacturing method of the display device is substantially the same or similar, and thus, for the convenience of description, redundant description thereof will be omitted.

[0217] The display device and the apparatus and method for manufacturing the display device according to various embodiments may prevent damage to a flexible circuit board attached to a display panel.

[0218] The display device and the apparatus and method for manufacturing the display device according to various embodiments may maintain a constant distance between a bent portion of a display panel and another portion of the display panel.

[0219] The display device and the apparatus and method for manufacturing the display device according to various embodiments may reduce stress applied to a flexible circuit board attached to a display panel.

[0220] Although specific embodiments and implementations have been described herein, other embodiments and modifications will be apparent from this description. Therefore, the inventive concept is not limited to such embodiments, but is limited to the broader scope of the appended claims and various obvious modifications and equivalent arrangements as will be apparent to those of ordinary skill in the art.

Claims

1. A display device, comprising: A display panel comprising a main portion, a bent portion extending from one side of the main portion, and a sub-portion extending from one side of the bent portion; a driving board connected to one side of the sub-portion and overlapping the main portion of the display panel in a thickness direction; as well as a protection member disposed between the display panel and the driving board, wherein the sub-portion is folded relative to the bent portion and attached to a rear surface of the main portion.

2. The display device according to claim 1, wherein: The main portion includes a flat main portion and a curved main portion extending from one side of the flat main portion, and the protection member is provided on the flat main portion and the curved main portion.

3. The display device according to claim 2, wherein: The sub-portion includes a flat sub-portion and a curved sub-portion extending from one side of the flat sub-portion, and the protection member is disposed between the flat main portion and the flat sub-portion and between the curved main portion and the curved sub-portion.

4. The display device according to claim 2, wherein: The protection member is bent so that a portion of the protection member overlaps another portion of the protection member in the thickness direction.

5. The display device according to claim 4, wherein: The protection member forms a double layer on the curved main portion.

6. The display device according to claim 1, wherein: The protection member includes a protection film, a first adhesive member disposed on a first surface of the protection film, and a second adhesive member disposed on a second surface of the protection film.

7. The display device according to claim 1, further comprising: a primary display surface; as well as a sub-display surface, tilted relative to the main display surface, Wherein, a flat main portion of the main portion is disposed on the main display surface, and a curved main portion of the main portion is disposed on the sub-display surface.

8. The display device according to claim 1, wherein: The display panel includes a base substrate, an active element layer and a thin film encapsulation layer.

9. An apparatus for manufacturing a display device, the display device comprising a display panel, a driving board, and a protective member disposed between the display panel and the driving board, the apparatus comprising: a stage including an upper surface on which a portion of a target object is mounted; a supporting unit disposed on one side of the table at an angle to the table and including a side surface on which another portion of the target object is mounted; as well as A pressing unit on which the protection member is mounted, the pressing unit being configured to move toward the target object and press the protection member against the target object.

10. The device according to claim 9, wherein: The supporting unit includes a first suction unit configured to move into close contact with the other portion of the target object, and a second suction unit disposed between the first suction unit and the stage.

11. The device according to claim 10, wherein: The first suction unit includes a vacuum suction cup.

12. The device according to claim 10, wherein: The second suction unit is configured to extend or contract to change the distance to the target object.

13. The device according to claim 12, wherein: The second suction unit includes a link portion configured to be extended or shortened in one direction and a suction cup portion provided at one end of the link portion.

14. The apparatus according to claim 9, wherein: The pressing unit includes a first flat surface provided on a side facing the target object, a second flat surface inclined with respect to the first flat surface, and a curved surface connecting the first flat surface and the second flat surface.

15. The apparatus according to claim 9, further comprising a controller configured to control at least one of the stage, the supporting unit, and the pressing unit, wherein the controller is configured to control movement and rotation of the pressing unit based on pre-stored size information of the target object.

16. The apparatus according to claim 15, further comprising a camera configured to photograph the target object, wherein the controller is configured to calculate a height difference between one side and another side of the target object based on information acquired from the camera, and determine whether the protective member has been attached in a correct position.

17. The apparatus according to claim 9, wherein: The angle between the stage and the supporting unit is 45 degrees to 135 degrees.

18. The apparatus according to claim 9, wherein: One side of the target object is bent so that the target object has an “L” shaped cross section.

19. The apparatus according to claim 9, wherein: The target object includes a target substrate and a flexible film, at least a portion of the target substrate is mounted on the stage, and at least a portion of the flexible film is mounted on the supporting unit.

20. An apparatus for manufacturing a display device, the display device comprising a display panel, a driving board, and a protective member disposed between the display panel and the driving board, the apparatus comprising: a stage including an upper surface on which a portion of a target object is mounted; a supporting unit disposed on one side of the table at an angle to the table and including a side surface on which another portion of the target object is mounted; as well as A coating unit is configured to move toward the target object and coat the target object with a coating agent for forming the protection member.

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