Patent Publication Number: US-10315400-B2

Title: Laminating device and laminating method using the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a divisional of U.S. patent application Ser. No. 14/205,139, filed Mar. 11, 2014, which claims priority under 35 U.S.C. § 119 to Korean Patent Application No. 10-2013-0059931, filed on May 27, 2013, in the Korean Intellectual Property Office, the disclosures of which are incorporated by reference herein in their entireties. 
    
    
     BACKGROUND 
     Field 
     The disclosed technology generally relates to a laminating device and method for laminating flexible panels and display devices. 
     Description of the Related Technology 
     Mobile electronics are now widely developed and used. Examples of mobile consumer electronic products are tablet computers that have become widely used in recent years in addition to small devices such as mobile phones. 
     Many mobile product categories include display for providing users visual information such as still images or videos and supporting related functionality. Recently, as other components for driving a display have been miniaturized, the display form factor is of increasingly importance for reducing size and weight. In this regard, flexible displays that are bendable at a predetermined angle are being developed. 
     In general, flexible displays that are configurable at a set of angles are manufactured using a process, whereby movement of the substrate is not constraint. Since such a device is formed of a flexible material, the device can assume various shapes. Manufacturing by forming a light-emitting unit on a substrate results in a display panel and sealing by encapsulation increases it lifetime. The substrate is formed of a flexible material and the encapsulation unit is formed, for example, as a substrate or a thin film. 
     SUMMARY OF CERTAIN INVENTIVE ASPECTS 
     Embodiments of the disclosed technology include a laminating device that laminates a panel member on a cover window and a laminating method. 
     According to an aspect of the disclosed technology, a laminating device includes a first jig on which a cover window of which at least one portion is curved is seated, a second jig disposed to face the first jig, an auxiliary film fixing unit dispose a panel member on the second jig in a flat state, the auxiliary film fixing unit fixing at least one portion of an auxiliary film on which the panel member is seated; and a driving unit linearly moving at least one of the first and second jigs. 
     One of an outer surface of the first jig and an outer surface of the second jig may protrude, and the other of the outer surface of the first jig and the outer surface of the second jig is recessed. 
     An outer surface of the first jig may have at least one curved surface. 
     A central portion of at least one of an outer surface of the first jig and an outer surface of the second jig may relatively protrude than the other portion of the at least one of the outer surface of the first jig and the outer surface of the second jig. 
     An outer surface of the second jig contacting the auxiliary film may have at least one curved surface. 
     The auxiliary film fixing unit may include: a first auxiliary film fixing unit restraining one end of the auxiliary film; and a second auxiliary film fixing unit restraining the other end of the auxiliary film. 
     The laminating device may further include a cushion unit disposed on at least one of an outer surface of the first jig and an outer surface of the second jig. 
     The auxiliary film fixing unit is linearly movable on a side of the second jig according to a linear motion of the at least one of the first jig and the second jig. 
     The laminating device may further include a fixing unit disposed on the first jig to fix the cover window. 
     The panel member may include at least one of a touch screen panel and a display panel. 
     According to another aspect of the disclosed technology, a laminating method includes seating a cover window of which at least one portion is curved on a first jig; disposing a panel member seated on an auxiliary film on a second jig facing the first jig in a flat state; and linearly moving at least one of the first and second jigs to press the cover window and the panel member, thereby laminating the cover window and the panel member with each other. 
     The auxiliary film and the panel member may adhere to each other by using an adhesive. 
     The cover window may have a size greater than that of the display panel. 
     A cushion unit is disposed on at least one of an outer surface of the first jig and an outer surface of the second jig. 
     The laminating of the cover window and the display member may include successively laminating the cover window and the panel member from central portions to both ends thereof. 
     Both ends of the auxiliary film is fixed to the auxiliary film fixing unit and disposed on the second jig. 
     The auxiliary film fixing unit is linearly movable on a side of the second jig according to a linear motion of the at least one of the first jig and the second jig. 
     The seating of the cover window on the first jig may include fixing the cover window through a fixing unit disposed on the first jig. 
     One of an outer surface of the first jig and an outer surface of the second jig may protrude, and the other of the outer surface of the first jig and the outer surface of the second jig is recessed. 
     The panel member may include at least one of a touch screen panel and a display panel. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other features and aspects of the disclosed technology will become more apparent by describing in details of exemplary embodiments thereof with reference to the attached drawings in which: 
         FIG. 1  is a cross-sectional view of a laminating device according to an embodiment of the disclosed technology; 
         FIG. 2  is a cross-sectional view of a display device manufactured by using the laminating device shown in  FIG. 1 ; 
         FIG. 3  is a cross-sectional view of a portion of a display panel shown in  FIG. 2 ; 
         FIG. 4  is a cross-sectional view of a laminating device according to another embodiment of the disclosed technology; 
         FIG. 5  is a cross-sectional view of a display device manufactured by using the laminating device shown in  FIG. 4 ; 
         FIG. 6  is a cross-sectional view of a laminating device according to further another embodiment of the disclosed technology; 
         FIG. 7  is a cross-sectional view of a display device manufactured by using the laminating device shown in  FIG. 4 ; 
         FIG. 8  is a cross-sectional view of a laminating device according to further another embodiment of the disclosed technology; 
         FIG. 9  is a cross-sectional view of a display device manufactured by using the laminating device shown in  FIG. 8 ; 
         FIG. 10  is a cross-sectional view of a laminating device according to further another embodiment of the disclosed technology; 
         FIG. 11  is a cross-sectional view of a display device manufactured by using the laminating device shown in  FIG. 10 ; 
         FIG. 12  is a cross-sectional view of a laminating device according to further another embodiment of the disclosed technology; and 
         FIG. 13  is a cross-sectional view of a display device manufactured by using the laminating device shown in  FIG. 12 . 
     
    
    
     DETAILED DESCRIPTION OF CERTAIN INVENTIVE EMBODIMENTS 
     As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. Expressions such as “at least one of,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list. Embodiments of the disclosed technology are described in details herein with reference to the accompanying drawings so that this disclosure is easily performed by one of ordinary skill in the art to which the disclosed technology pertains. The disclosed technology may, however, be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are disclosed so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosed technology to those of ordinary skill in the art. Furthermore, the disclosed technology is only defined by the scope of the claims. 
     The drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals designate like elements throughout the specification. 
     Further, since sizes and thicknesses of constituent members shown in the accompanying drawings are arbitrarily given for better understanding and ease of description, the disclosed technology is not limited to the illustrated sizes and thicknesses. 
     In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. In the drawings, for better understanding and ease of description, the thicknesses of some layers and areas are exaggerated. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” another element, it is directly on the other element or intervening elements may also be present. 
     Throughout this specification and the claims that follow, when it is described that an element is “connected” to another element, the element is “directly connected” to the other element or “electrically connected” to the other element through a third element. In addition, unless explicitly described to the contrary, the word “comprise” and variations such as “comprises” or “comprising” will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. Throughout this specification, it is understood that the term “on” and similar terms are used generally and are not necessarily related to a gravitational reference. 
     Here, when a first element is described as being connected to a second element, the first element is not only directly connected to the second element but may also be indirectly connected to the second element via a third element. Further, some of the elements that are not essential to the complete understanding of the disclosed technology are omitted for clarity. Also, like reference numerals refer to like elements throughout. 
     In the following description, technical terms are used only to explain a specific exemplary embodiment while not limiting the disclosed technology. The terms of a singular form may include plural forms unless referred to the contrary. The terms “include,” “comprise,” “including,” and “comprising,” as used herein, specify a component, a process, an operation, and/or an element but do not exclude other components, processes, operations, and/or elements. It will be understood that although the terms “first” and “second” are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one component from other components. 
     A display device according to embodiments of the disclosed technology may include various devices. In some implementations, the display device includes a liquid display device or an organic light-emitting display device. However, for convenience of descriptions, the organic light-emitting display device as the display device will be described in detail below. 
       FIG. 1  is a cross-sectional view of a laminating device  10  according to an embodiment of the disclosed technology.  FIG. 2  is a cross-sectional view of a display device  100  manufactured by using the laminating device  10  shown in  FIG. 1 .  FIG. 3  is a cross-sectional view of a portion of a display panel shown in  FIG. 2 . 
     Referring to  FIGS. 1 to 3 , the laminating device  10  may have a curved portion. Also, the laminating device  10  may include a first jig  1 . The first jig  1  has a seating surface (not shown) on which a cover window  110  is seated. The cover window  110  has at least one curved portion. 
     The first jig  1  has a shape similar to that of the cover window  110 . Particularly, the seating surface of the first jig  1  has a curved surface shape. In an exemplary implementation, one portion of the first jig  1  is flat so that the flat portion of the cover window  110  is seated on the first jig. Also, the other portion of the first jig  1  is curved so that a curved portion of the cover window  110  is seated on it. The seating surface of the first jog is inserted into a side of the first jig  1 . 
     The laminating device  10  includes a second jig  2  separably coupled to the first jig  1 . One surface of the second jig  2  is matched in shape with the seating surface of the first jig  1 . 
     In an exemplary implementation, the one surface of the second jig  2  is curved to correspond to the curved portion of the seating surface of the first jig  1 . The curved surface of the second jig  2  may protrude toward the first jig  1 . Here, an auxiliary film  7  isis seated on a portion of the curved surface of the second jig  2 . A panel member ( 190 ) is seated on the auxiliary film  7 . 
     Also, an outer surface of the second jig  2  has a central portion relatively protruding. Here, the central portion of the second jig  2  protrudes toward the first jig  1 . Thus, when the first and second jigs  1  and  2  are pressed to laminate the cover window  110  to the panel member  190 , the cover window  110  and the panel member  190  successively adhere to each other from central portions to both ends thereof. Since bubbles are not generated between the cover window  110  and the panel member  190  when the cover window  110  and the panel member  190  adhere to each other, a defect rate of the display device  100  can be reduced. 
     At least one of the first and second jigs  1  and  2  is formed of an elastic material such as silicon, rubber, flexible synthetic resin, and the like. Alternatively, at least one of the first and second jigs  1  and  2  is formed of a rigid material such as metal, rigid synthetic resin, and the like. However, for convenience of descriptions, the first and second jigs  1  an  2  which are respectively formed of ridge materials will be described below. 
     The laminating device  10  may include a driving unit (not marked) connected to at least one of the first and second jigs  1  and  2  to move the at least one of the first and second jigs  1  and  2 . 
     Here, the driving unit may include a first driving unit  6  moving the first jig  1  and a second driving unit (not shown) moving the second jig  2 . The first driving unit  6  is manufactured through a method similar to that of the second driving unit. Hereinafter, for convenience of descriptions, the driving unit including the first driving unit  6  will be described in details. 
     The first driving unit  6  includes various units. In an exemplary implementation, the first driving unit  6  includes a pneumatic or hydraulic cylinder moving the first jig  1 . Also, the first driving unit  6  may include a motor operated by using electric energy to move the first jig  1 . Hereinafter, for convenience of descriptions, the first driving unit including the cylinder will be described in details. 
     The laminating device  10  may include a fixing unit  5  preventing the cover window  110  seated on the first jig  1  from being moved or preventing the panel member  190  from being separated from the first jig  1 . 
     Here, the fixing unit  5  may include a suction unit (not shown) in at least one of the first and second jigs  1  and  2 . Also, the fixing unit  5  may include a suction pump (not shown) suctioning air within the suction unit. 
     The fixing unit  5  is not limited to the above-described structure, and thus has various structures. In an exemplary implementation, the fixing unit  5  is included as a separate frame, clamp, or holder that is formed on the first jig  1  to mechanically fix the cover window  110 . Also, the fixing unit  5  is an adhesive member and has an adhesion force. Particularly, the fixing unit  5  may include an adhesive chuck (not shown) or electrostatic chuck (not shown) formed on the seating surface of the first jig  1 . However, for convenience of descriptions, the fixing unit  5  including the adhesive member will be described in detail below. 
     The laminating device  10  isis formed to be at a predetermined distance away from the second jig  2 . Also, the laminating device  10  may include auxiliary film fixing units  4   a  and  4   b . The auxiliary film fixing units  4   a  and  4   b  support the panel member  190 . Here, an auxiliary film  7  is fixedly inserted into the auxiliary film fixing units  4   a  and  4   b . Particularly, the plurality of auxiliary film fixing units  4   a  and  4   b  are respectively formed on side surfaces of the second jig  2  to face each other, thereby fixing both ends of the auxiliary film  7 . The plurality of auxiliary film fixing units  4   a  and  4   b  may include a first auxiliary film fixing unit  4   a  fixing one end of the auxiliary film  7  and a second auxiliary film fixing unit  4   b  spaced a predetermined distance from the first auxiliary film fixing unit  4   a  to fix the other end of the auxiliary film  7 . 
     Also, a distance between the first auxiliary film fixing unit  4   a  and the second auxiliary film fixing unit  4   b  is greater than a width or length of the panel member  190 . Particularly, the distance between the first auxiliary film fixing unit  4   a  and the second auxiliary film fixing unit  4   b  is greater than a width or length of the auxiliary film  7 . Here, the panel member  190  may include at least one of a display panel  130  and a touch screen panel (TSP)  120 . However, for convenience of descriptions, the structure in which the distance between the auxiliary film fixing unit  4   a  and the second auxiliary film fixing unit  4   b  is greater than the width of the panel member  190  will be described in detail below. 
     The laminating device  10  may include a cushion unit  3  formed on at least one of outer surfaces of the first and second jigs  1  and  2 . The cushion unit  3  is formed of various materials. Particularly, the cushion unit  3  is formed an elastic material. In an exemplary implementation, the cushion unit  3  is formed of silicon, rubber, sponge, or the like. However, for convenience of descriptions, the cushion unit  3  formed on the outer surface of the second jig  2  will be described in detail below. 
     As described above, the cushion unit  3  may absorb or disperse a portion of a pressure or force that is applied to at least one of the cover window  110  and the panel member  190  by at least one of the first and second jigs  1  and  2  when the first and second jigs  1  and  2  are pressed with respect to each other. Also, when the first and second jigs  1  and  2  are pressed with respect to each other, the pressure or force applied to the cover window  110  and the panel member  190  is uniformly distributed over an entire region of each of the cover window  110  and the panel member  190 . 
     Thus, the laminating device  10  may quickly easily laminate the cover window  110  of which at least one portion is curved to the panel member  190 . In addition, the laminating device  10  may prevent bubbles from being generated between the panel member  190  and the cover window  110  when the cover window  110  and the panel member  190  are laminated, thereby reducing the defect rate of the display device  100 . 
     Hereinafter, the display device  100  manufactured by using the laminating device  10  will be described in detail below. 
     The display device  100  may include the cover window  110  and the panel member  190 . The cover window  110  may have a curved portion. Particularly, the cover window  110  has a flat surface. Here, at least one end of the flat surface is curved. Alternatively, both ends of the flat surface are curved. 
     In an exemplary implementation, the cover window  110  includes a flat portion having the flat surface and a curved portion. The curved portion extends from the flat portion and is curved. Here, the curved portion is formed on each of both ends of the flat portion. 
     The panel member  190  includes at least one of the display panel  130  and the TSP  120 . In an exemplary implementation, the panel member  190  includes only the display panel  130  and the display panel  130  is attached to the cover window  110 . In another exemplary implementation, the panel member  190  includes only the TSP  120  and the TSP  120  is attached to the cover window  110 . In another exemplary implementation, the panel member  190  includes the display panel  130  and the TSP  120 , and the display panel  130  and the TSP  120  are attached to the cover window  110 . Furthermore, the panel member  190  includes adhesive layers  141  and  142 . The adhesive layers  141  and  142  are formed between at least two layers of the cover window  110 , the TSP  120 , and the display panel  130 . The adhesive layers  141  and  142  include a first adhesive layer  141  formed between the TSP  120  and the cover window  110 . The adhesive layers  141  and  142  also include a second adhesive layer  142  formed between the TSP  120  and the display panel  130 . 
     Each of the first and second adhesive layers  141  and  142  has various shapes. In an exemplary implementation, each of the first and second adhesive layers  141  and  142  includes an optical clear adhesive (OCA) film or an adhesive material. 
     As described above, the size of the first adhesive layer  141  is similar to that of the TSP  120 . Also, the size of the second adhesive layer  142  is similar to that of the display panel  130 . 
     For convenience of descriptions, the panel member  190  including the first adhesive layer  141 , the TSP  120 , the second adhesive layer  142  and details of the display panel  130  will be described below. 
     As described above, each of the display panel  130  and the TSP  120  is flexible. Also, the display panel  130  may have a size different from that of the cover window  110 . In an exemplary implementation, the size of the display panel  130  is less than that of the cover window  110 . In another exemplary implementation, the length of the display panel  130  is less than that of the cover window  110 . In another exemplary implementation, a width of the display panel  130  is less than that of the cover window  110 . In another exemplary implementation, the length and the width of the display panel  130  are less than those of the cover window  110 . However, for convenience of descriptions, the display panel having the length less than that of the cover window  110  that will be described in detail below. 
     Also, a size of the TSP  120  may be a size less that that of the cover window  110 . In an exemplary implementation, a width or a length of the TSP  120  is less than that of the cover window  110 . Here, a size of the TSP  120  may be greater than that of the display panel  130 . In an exemplary implementation, a width or a length of the TSP  120  is greater than that of the display panel  130 . For convenience of descriptions, the TSP  120  having a length less than that of the cover window  110  and greater than that of the display panel will be described in detail below. 
     The display panel  130  may include a first substrate S and a light-emitting unit (not shown). In an exemplary implementation, the display panel  130  includes an encapsulation unit (not shown) on the light-emitting unit. Here, the encapsulation unit may have a thin film. The encapsulation unit may include a second substrate (not shown) in addition to the thin film. However, for convenience of descriptions, the encapsulation unit having the thin film will be described in detail below. 
     The light-emitting unit is formed on the first substrate S. Here, the light-emitting unit may include a thin film transistor (TFT). A passivation layer  131  is formed to cover the light-emitting unit and the thin film transistor (TFT). An organic light-emitting device  138  is formed on the passivation layer  131 . 
     The first substrate S is formed of a glass material, but the disclosed technology is not limited thereto. In an exemplary implementation, the first substrate S is formed of a plastic material or a metal material such as stainless steel (SUS) or titanium (Ti). The first substrate S may also be formed of polyimide (PI). Hereinafter, for convenience of descriptions, the first substrate S formed of polyimide will be described in detail below. 
     A buffer layer  132  is formed of an organic compound and/or inorganic compound is and further formed on a top surface of the first substrate S. Here, the organic compound and/or inorganic compound may include at least one material selected from the group consisting of SiO x (x≥1), SiN x (x≥1). 
     An active layer  133  arranged in a predetermined pattern is formed on the buffer layer  132 . Then, the active layer  133  is buried by a gate insulation layer  134 . The active layer  133  has a source region  133   a  and a drain region  133   c . Also, the active layer  133  further has a channel region  133   b  between the source region  133   a  and the drain region  133   c.    
     In an exemplary implementation, an amorphous silicon layer is formed on the buffer layer  132  and be crystallized to form a polycrystal silicon layer. Then, the polycrystal silicon layer is patterned to form the active layer  133 . The source and drain regions  133   a  and  133   c  of the active layer  133  are doped with impurities according to a kind of TFTs such as a driving TFT (not shown) and a switching TFT (not shown). 
     A gate electrode  135  corresponding to the active layer  133  and an interlayer dielectric  136  burying the gate electrode  135  are formed on a top surface of the gate insulation layer  134 . 
     Also, a contact hole is formed in the interlayer dielectric  136  and the gate insulation layer  134 . Thus, a source electrode  137   a  and a drain electrode  137   b  formed on the interlayer dielectric  136  contacts the source region  133   a  and the drain region  133   c , respectively. 
     The passivation layer  131  is formed on the thin film transistor (TFT) formed through above-described processes, and then a pixel electrode  138   a  of an organic light-emitting device (OLED) is formed on the passivation layer  131 . The pixel electrode  138   a  may contact the drain electrode  137   b  of the thin film transistor (TFT) by a via hole H 2  formed in the passivation layer  131 . The passivation layer  131  is formed of an organic substance and/or inorganic substance with a single layer or multilayer structure. A top surface of the passivation layer  131  is included as a planarization layer regardless of a curved shape of a lower layer formed under the passive layer  131 . On the other hand, the passivation layer  131  is curved according to the curved shape of the lower layer. Also, the passivation layer  131  is formed of a transparent insulation material to achieve a resonance effect. 
     After the pixel electrode  138   a  is formed on the passivation layer  131 , a pixel define layer  139  is formed by using an organic substance and/or inorganic substance to cover the pixel electrode  138   a  and the passivation layer  131 . Then, the passivation layer  131  is opened to expose the pixel electrode  138   a.    
     Also, an organic emission layer  138   b  and an opposite electrode  138   c  are formed on at least the pixel electrode  138   a.    
     The pixel electrode  138   a  may function as an anode electrode, and the opposite electrode  138   c  may function as a cathode electrode. Here, the pixel electrode  138   a  and the opposite electrode  138   c  may have polarities opposite to each other. 
     The pixel electrode  138   a  is formed of a material having a high work function, e.g., a transparent conductor such as ITO, IZO, In 2 O 3 , and ZnO. 
     The opposite electrode  139   c  is formed of a material having a low work function, e.g., a metal material such as Ag, Mg, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, and compounds thereof. A transflective reflective layer is thinly formed of Mg, Ag, or Al and then is optically resonated so that light is transmitted therethrough. 
     The pixel electrode  138   a  and the opposite electrode  138   c  are insulated from each other by the organic emission layer  138   b . Voltages different from each other are applied to the organic emission layer to emit light from the organic emission layer. 
     A low-molecular or polymer organic layer is used as the organic emission layer  138   b . When the low-molecular organic layer is used as the organic emission layer, the organic emission layer may include a hole injection layer (HIL), a hole transport layer (HTL), an organic emission layer (EML) an electron transport layer (ETL), and an electron injection layer (EIL) which are laminated in a single layer or a multi-layered structure. Here, examples of the organic material may include copper phthalocyanine (CuPc), NPB (N,N′-Di(naphthalene-1-yl)-N,N′-diphenyl-benzidine), or tris-8-hydroxyquinoline aluminum (Alq3). The low-molecular organic layer is formed using a vacuum deposition method. Here, the HIL, the HTL, the ETL, and the EIL may serve as common layers, and thus be commonly applied to red, green, and blue pixels. Thus, unlike the embodiment described with reference to  FIG. 2 , the common layers together with the opposite electrode  138   c  may cover the whole pixel. 
     In general, the polymer organic layer may have a structure including the HTL and the EML. Here, the HTL is formed of poly(3,4-ethylenedioxythiophene) (PEDOT), and the EML is formed of a poly-phenylenevinylene (PPV)-based or polyfluorene-based polymer organic material. The HTL and EML is formed using screening printing or inkjet printing. 
     However, the organic layer is not limited to the above-described structure, and thus various embodiments are applied to the organic layer. 
     The encapsulation unit may have a thin film encapsulation shape as described above. Particularly, at least one organic layer and at least one inorganic layer are alternately laminated on each other. Particularly, each of the inorganic layer or the organic layer is provided in plurality. 
     The organic layer is a single or multilayer that is formed of a polymer, e.g., one of polyethylene terephthalate, polyimide, polycarbonateg, epoxy, and polyacrylate. Particularly, the organic layer is formed of polyacrylate. More particularly, the organic layer is formed of a polymerized monomer compound containing a diacrylate-based monomer and a triacrylate-based monomer. Also, a monoacrylate-based monomer is further contained in the monomer compound. Also, photoinitiator such as 2,4,6-trimethylbenzoyl diphenyl phosphoine (TPO) is further contained in the monomer compound, but the disclosed technology is not limited thereto. 
     The inorganic layer is a single or multilayer containing metal oxide or metal nitride. Particularly, the inorganic layer is formed of one of SiN x , Al 2 O 3 , SiO 2 , and TiO 2 . 
     The uppermost layer of the encapsulation unit, which is exposed to the outside, is an inorganic layer to prevent moisture from being permeated into an organic light-emitting device. 
     The encapsulation unit may have a sandwich structure in which at least one organic layer is formed between at least two inorganic layers. Alternatively, the encapsulation unit may have a sandwich structure in which at least one inorganic layer is formed between at least two organic layers. 
     The encapsulation unit may include a first inorganic layer, a first organic layer, and a second inorganic layer which are successively laminated upward from the light-emitting unit. Alternatively, the encapsulation unit may include a first inorganic layer, a first organic layer, a second inorganic layer, a second organic layer, and a third inorganic layer which are successively laminated upward from the light-emitting unit. Alternatively, the encapsulation unit may include a first inorganic layer, a first organic layer, a second inorganic layer, a second organic layer, a third inorganic layer, a third organic layer, and a fourth inorganic layer which are successively laminated upward from the light-emitting unit. 
     A halogenated metal layer containing LiF is additionally formed between the light-emitting unit and the first inorganic layer. The halogenated metal layer may prevent the light-emitting unit from being damaged when the first inorganic layer is formed by using a sputtering method or a plasma deposition method. 
     The first organic layer may have an area less than that of the second inorganic layer, and the second organic layer may also have an area less than the of the third inorganic layer. Also, the first organic layer is fully covered by the second inorganic layer, and the second organic layer may also be fully covered by the third inorganic layer. 
     The encapsulation unit may include the second substrate as described above. Here, the second substrate is formed of a material similar to that of the first substrate S. Particularly, the second substrate is formed of a glass material similar to that of the first substrate S, but the disclosed technology is not limited thereto. In an exemplary implementation, the second substrate is formed of a plastic material. 
     In an exemplary implementation, the TSP  120  has a panel shape and is formed on the display panel  130 . In another exemplary implementation, the TSP  120  has a pattern shape and is formed on the display panel  130 . In another exemplary implementation, the TSP  120  is formed on the encapsulation unit. The TSP  120  may also be formed on the cover window  110  in the above-described panel or pattern shape. 
     Here, the formation of the TSP  120  is equal to a general technology, and thus detailed descriptions thereof will be omitted. Hereinafter, for convenience of descriptions, the structure in which the TSP  120  is formed on the display panel  130  in the panel shape will be described in details. 
     Hereinafter, a method of manufacturing the display device  100  will be described in details. 
     The method of manufacturing the display device  100  by using the laminating device  10  will be described in detail below. 
     A cover window  110  is processed to manufacture the display device  100 . Here, the cover window  110  is formed of various materials. In an exemplary implementation, the cover window  110  is formed of a glass or plastic material. However, the cover window  110  may not be limited to the above-described material. In an exemplary implementation, the cover window  110  is formed of various materials and a portion of the cover window  110  is capable of being curved. 
     When the cover window  110  is processed as described above, both ends of the cover window  110  are bent and thus curved. Here, both curved ends of the cover window  110  are curved from a flat portion of the cover window  110 . Particularly, each of both curved ends of the cover window  110  extends from the flat portion of the cover window  110  and has an arc shape with a predetermined radius. Here, each of both curved ends of the cover window  110  has an oval shape, but do not have the arc shape. 
     While or after the cover window  110  is manufactured as described above, a display panel  130  and a TSP  120  are manufactured. Here, since the method of manufacturing the display panel  130  and TSP  120  is equal to a general method of manufacturing a general display panel  130  and TSP  120 , their detailed descriptions will be omitted. 
     When the display panel  130  and the TSP  120  are prepared, a second adhesive layer  142  is seated on a side of the display panel  130 . In an exemplary implementation, a second adhesive layer  142  is seated on an encapsulation unit. 
     Here, the second adhesive layer  142  has a film shape and is attached to the encapsulation unit. Also, the second adhesive layer  142  is included as a material so that the second adhesive layer  142  is applied on the encapsulation unit. However, for convenience of descriptions, the second adhesive layer  142  having the film shape will be described in detail below. 
     When the above-described process is finished, the display panel  130  and the TSP  120  are attached to each other. Since the method of attaching the display panel  130  to the TSP  120  is equal to a general method, detailed descriptions thereof will be omitted. 
     When the display panel  130  and the TSP  120  are attached to each other, a first adhesive layer  141  is applied on the TSP  120 . Because the method of applying the first adhesive layer  141  is equal to the method of applying the second adhesive layer  142 , detailed description thereof will be omitted. 
     While or after the above-described process is performed, the panel member  190  is seated on an auxiliary film  7 . Here, an adhesive iscan be applied on the auxiliary film  7  to fix the panel member  190 . 
     When the above-described process is finished, the auxiliary film  7  is fixed through a first auxiliary film fixing unit  4   a  and a second auxiliary film fixing unit  4   b . Here, a distance between the first auxiliary film fixing unit  4   a  and the second auxiliary film fixing unit  4   b  is greater than a width of the auxiliary film  7  as described above. Thus, when the auxiliary film  7  is fixed to the first and second auxiliary film fixing units  4   a  and  4   b , the first and second auxiliary film fixing units  4   a  and  4   b  will pull both ends of the auxiliary film  7  to prevent the auxiliary film  7  from drooping down by a weight thereof. 
     While the above-described process is performed, the cover window  110  is seated on a first jig  1 . Here, the first jig  1  and a second jig  2  are formed to face each other. In an exemplary implementation, the first jig  1  is formed above the second jig  2 . In another exemplary implementation, the first jig  1  is formed under the second jig  2 . However, for convenience of descriptions, the structure in which the first jig  1  is formed above the second jig  2  will be described in detail below. Here, the positions of the first and second jigs  1  and  2  are merely an embodiment of the disclosed technology and thus, the disclosed technology is not limited thereto. 
     As described above, when the cover window  110  is seated on the first jig  1 , the cover window  110  is fixed by a fixing unit  5 . Here, the fixing unit  5  is included as an adhesive member to support the cover window  110 . 
     In this case, at least one of the first and second jigs  1  and  2  operates linearly. In an exemplary implementation, the first jig  1  moves toward the second jig  2 . In another exemplary implementation, the second jig  2  moves toward the first jig  1 . Also, the first and second jigs  1  and  2  may operate to approach each other. Hereinafter, for convenience of descriptions, the structure in which the first jig  1  operates will be described in detail below. 
     As described above, the first jig  1  may have a curved surface so that one surface of the cover window  110  is closely attached to the curved surface of the first jig  1 . Particularly, the one surface of the first jig  1  may have a curved shape that is recessed in one direction. 
     As described above, when the cover window  110  and the panel member  190  are prepared, a first driving unit  6  is driven to move the first jig  1  toward the second jig  2 . In an exemplary implementation, the first driving unit  6  is programmed to operate for a predetermined time. 
     As described above, when the first driving unit  6  operates, the first jig  1  approaches the second jig  2 . Continuously, when the first jig  1  moves toward the second jig  2 , the first adhesive layer  141  contacts the cover window  110 . 
     When the first driving unit  6  continuously operates, the first adhesive layer  141  contacts the cover window  110  and thus is pressed. In an exemplary implementation, a central portion of the second jig  2  protrudes toward the first jig  1  when compared to other portions thereof. Thus, the first adhesive layer  141  contacts the cover window  110  outward from a central portion thereof. 
     The central portions of the cover window  110  and the first adhesive layer  141  are attached to each other according to the progress of the first jig  1 . In an exemplary implementation, the cover window  110  and the first adhesive layer  141  are successively attached to each other from the central portions to both ends thereof. 
     While the above-described process is performed, the first and second auxiliary film fixing units  4   a  and  4   b  linearly move together with the first jig  1 . Here, the first and second auxiliary film fixing units  4   a  and  4   b  may linearly move in the same direction as that of the first jig  1 . However, the first and second auxiliary film fixing units  4   a  and  4   b  can be fixed without being limited to the above-described structure. 
     As described above, when the first jig  1  linearly moves, the first and second jigs  1  and  2  press the cover window  110  and the panel member  190 . Here, as described above, a cushion unit  3  may uniformly disperse a pressure or force applied to the cover window  110  and the panel member  190 . 
     When the above-described process is finished, the display device  100  is manufactured. Here, the first driving unit  6  may operate to space the first jig  1  from the second jig  2 . In an exemplary implementation, the display device  100  is in a state of being attached to the auxiliary film  7 . Furthermore, the display device  100  together with the cover window  110  is attached to the first jig  1 . Here, a user may separate the auxiliary film  7  from the first and second auxiliary film fixing units  4   a  and  4   b  and then separate the display device  100  from the auxiliary film  7 . Also, the user may separate the display device  100  attached to the first jig  1  to withdraw the display device  100 . 
     The above-described process is performed in a vacuum state. Here, a laminating device  10  may include a chamber (not shown) and a pressure adjustment unit (not shown) formed within the chamber to adjust an inner pressure of the chamber. In an exemplary implementation, the pressure adjustment unit includes a suction tube (not shown) connected to the chamber and a vacuum pump (not shown) formed on the suction tube. 
     Thus, the laminating device  10  can quickly accurately manufacture the display device  100  having the curved shape. In an exemplary implementation, the laminating device  10  can accurately laminate the window cover  110  having the curved shape to the panel member  190  and minimize a defect rate and improve product quality. 
     In addition, the laminating device  10  can effectively discharge bubbles generated between the cover window  110  and the panel member  190  when the laminating process is performed to allow the cover window  100  to firmly adhere to the panel member  190 . 
       FIG. 4  is a cross-sectional view of a laminating device  200  according to another embodiment of the disclosed technology.  FIG. 5  is a cross-sectional view of a display device  100 ′ manufactured by using the laminating device  200  shown in  FIG. 4 . 
     Referring to  FIGS. 4 and 5 , the display device  100 ′ may include a cover window  110 ′, a first adhesive layer  141 ′, a panel member ( 190 ′), and a second adhesive layer  142 ′. Also, the panel member  190 ′ may include at least one of a touch screen panel (TSP)  120 ′ and a display panel  130 ′. Hereinafter, for convenience of descriptions, the panel member  190 ′ including all of the TSP  120 ′ and the display panel  130 ′ will be described in details. 
     The cover window  110 ′, the first adhesive layer  141 ′, the TSP  120 ′, the second adhesive layer  142 ′ and the display panel  130 ′ are similar to the cover window  110 , the first adhesive layer  141 , the TSP  120 , the second adhesive layer  142 , and the display panel  130  which are described with reference to  FIGS. 1 to 3 , respectively. 
     Here, the cover window  110 ′ may have at least one curved portion. In an exemplary implementation, the cover window  110 ′ has a curved surface with a predetermined curvature radius. Specifically, the cover window  110 ′ has a curved surface with a curvature radius R in a length or width direction thereof. Hereinafter, for convenience of descriptions, the cover window  110 ′ having the curved surface with the curvature radius R in the length direction thereof will be described in detail below. 
     The laminating device  200  includes a first jig  210 , a second jig  220 , a cushion unit  230 , auxiliary film fixing units  240   a  and  240   b , a fixing unit  250  and a driving unit  260 . Here, the first jig  210 , the second jig  220 , the cushion unit  230 , the auxiliary film fixing units  240   a  and  240   b , the fixing unit  250 , and the driving unit  260  are similar to those according to the foregoing embodiment. 
     At least one portion of an outer surface of the first jig  210  has the same shape as an outer surface of the cover window  110 ′. In an exemplary implementation, at least one portion of an outer surface of the first jig  210  has a curved surface with a predetermined curvature radius similar to that of an outer surface of the cover window  110 ′. Here, the curved surface formed on the outer surface of the first jig  210  is recessed toward an upper side when viewed in  FIG. 4 . 
     An outer surface of the second jig  220  is matched in shape with the outer surface of the first jig  210 . In an exemplary implementation, the outer surface of the second jig  220  protrudes to match the recessed outer surface of the first jig  210 . Here, the outer surface of the second jig  220  may have a predetermined curvature radius. 
     The fixing unit  250  has various structures as described above. In an exemplary implementation, the fixing unit  250  includes an adhesive chuck or an electrostatic chuck. In another exemplary implementation, the fixing unit  250  is included as an adhesive material. The fixing unit  250  may also include a suction unit (not marked) formed within the first jig  210  and a suction pump (not marked) suctioning air within the suction unit. A portion of the suction unit is exposed to the outside of the first jig  210 . In another exemplary implementation, the fixing unit  250  includes a separate frame, clamp, or holder that mechanically fixes the cover window  110 ′. Hereinafter, for convenience of descriptions, the fixing unit  250  including the suction unit and the suction pump will be described in detail below. 
     The auxiliary film fixing units  240   a  and  240   b  and the driving unit  260  except for the first jig  210 , the second jig  220 , and the fixing unit  250  are equal or similar to those according to the foregoing embodiment, and thus, their detailed descriptions will be omitted. Hereinafter, an operation of the laminating device  200  will be described in details. 
     When the display device  100 ′ is manufactured by using the laminating device  200 , processes similar to those according to the foregoing embodiment is performed. Particularly, as described above, the cover window  110 ′, the TSP  120 ′, and the display panel  130 ′ are manufactured and prepared. 
     When the above-described process is finished, the cover window  110 ′ is seated on the first jig  210 . Because one surface of the cover window  110 ′ has the same shape as the seating surface of the first jig  210 , the one surface of the cover window  110 ′ is closely attached to the seating surface of the first jig  210 . 
     As described above, when the cover window  110 ′ is seated on the first jig  210 , the suction pump operates to suction air within the suction unit. Here, the suction unit exposed to the outer surface of the first jig  210  may absorb and fix the outer surface of the cover window  110 ′. 
     The TSP  120 ′ and the display panel  130 ′ may adhere to each other by using the second adhesive layer  142 ′, and then the first adhesive layer  141 ′ is formed on the TSP  120 ′ to fix the display panel  130 ′ to an auxiliary film  270 . Here, since the method of fixing the display panel  130 ′ to the auxiliary film  270  is equal or similar to that according to the foregoing embodiment, detailed descriptions thereof will be omitted. 
     As described above, the TSP  120 ′ and the display panel  130 ′ are fixed to the auxiliary film  270  and the auxiliary film  270  is fixed to the first and second auxiliary film fixing units  240   a  and  240   b . Here, the first and second auxiliary film fixing units  240   a  and  244   b  pull both ends of the auxiliary film  270  to maintain a tension of the auxiliary film  270  at a predetermined level or more. Thus, movement of the auxiliary film  270 , the TSP  120 ′, and the display panel  130 ′ toward the second jig  220  by weights of the TSP  120 ′ and the display panel  130 ′ or an external force can be prevented by the tension of the auxiliary film  270 . 
     When the above-described process is finished, the driving unit  260  operates to move at least one of the first and second jigs  210  and  220 . Also, the first and second auxiliary film fixing units  240   a  and  240   b  linearly move according to the operation of the driving unit  260 . However, for convenience of descriptions, the structure in which the driving unit  260  moves the first jig  210  to the second jig  220  will be described in detail below. And the structure in which the first and second auxiliary film fixing units  240   a  and  244   b  are fixed to fix the auxiliary film  270  will be described in detail below. 
     As described above, when the driving unit  260  operates, the first jig  210  moves to the second jig  220  and then at least one portion of the cover window  110 ′ absorbed to the first jig  210  contact the first adhesive layer  141 ′. 
     Here, since a central portion of the second jig  220  protrudes to have a curved shape, the first adhesive layer  141 ′ and the cover window  110 ′ are successively attached from a central portion to both ends of the cover window  110 ′. 
     Also, while the above-described process is performed, the cushion unit  230  disperses a force applied to the cover window  110 ′, the TSP  120 ′ and the display panel  130 ′. In an exemplary implementation, the cushion unit  230  removes bubbles generated between the first adhesive layer  141 ′ and the outer surface of the cover window  110 ′ in addition to the dispersion of the force as described above. 
     Thus, the laminating device  200  successively attaches the cover window  110 ′ and the panel member  190 ′ to each other to maximally prevent the generation of the bubbles. Also, the laminating device  200  may manufacture the display device  100 ′ in various shapes. 
     Particularly, when the display device  100 ′ is manufactured by using the laminating device  200 , the panel member  190 ′ is fixed by using the auxiliary film  270  without directly applying a force to the panel member  190 ′ to minimize damage of the panel member  190 ′. This occurs when the panel member  190 ′ is fixed by using a separate fixing unit. 
       FIG. 6  is a cross-sectional view of a laminating device  300  according to further another embodiment of the disclosed technology.  FIG. 7  is a cross-sectional view of a display device  100 ″ manufactured by using the laminating device  300  shown in  FIG. 4 . 
     Referring to  FIGS. 6 and 7 , the display device  100 ″ may include a cover window  110 ″, a first adhesive layer  141 ″, a panel member ( 190 ″), and a second adhesive layer  142 ″. Also, the panel member  190 ″ may include at least one of a touch screen panel (TSP)  120 ″ and a display panel  130 ″. Hereinafter, for convenience of descriptions, the panel member  190 ″ including all of the TSP  120 ″ and the display panel  130 ″ will be described in details. 
     The cover window  110 ″, the first adhesive layer  141 ″, the TSP  120 ″, the second adhesive layer  142 ″, and the display panel  130 ″ are similar to the cover window  110 , the first adhesive layer  141 , the TSP  120 , the second adhesive layer  142 , and the display panel  130  which are described with reference to  FIGS. 1 to 3 , respectively. 
     Here, the cover window  110 ″ has at least one curved portion. In an exemplary implementation, the cover window  110 ″ has a curved surface having at least one curvature radius. Specifically, the cover window  110 ″ has a first curved surface with a curvature radius R 1 , a second curved surface with a curvature radius R 2 , and a third curved surface with a curvature radius R 3  in a length or width direction thereof. Here, the cover window  110 ″ has curved surfaces with curvature radii R 4 , R 5 , . . . , RN (where N is natural number) in addition to the curved surfaces having the curvature radii R 1 , R 2 , and R 3 . However, for convenience of descriptions, the cover window  110 ″ having the first, second, and third curved surfaces with the curvature radii R 1 , R 2 , and R 3  in the width direction thereof will be described in detail below. 
     The laminating device  300  includes a first jig  310 , a second jig  320 , a cushion unit  330 , auxiliary film fixing units  340   a  and  240   b , a fixing unit  350 , and a driving unit  360 . Here, the first jig  310 , the second jig  320 , the cushion unit  330 , the auxiliary film fixing units  340   a  and  340   b , the fixing unit  350 , and the driving unit  360  are similar to those according to the foregoing embodiment. 
     At least one portion of an outer surface of the first jig  310  has the same shape as an outer surface of the cover window  110 ″. Specifically, at least one portion of an outer surface of the first jig  310  has a curved surface with at least one curvature radius similar to that of an outer surface of the cover window  110 ″. Here, the curved surface formed on the outer surface of the first jig  310  is recessed toward an upper side when viewed in  FIG. 6 . 
     An outer surface of the second jig  320  is matched in shape with the outer surface of the first jig  310 . In an exemplary implementation, the outer surface of the second jig  320  protrudes to match the recessed outer surface of the first jig  310 . Here, the outer surface of the second jig  320  has at least one curvature radius. 
     The fixing unit  350  may have various structures as described above. In an exemplary implementation, the fixing unit  350  includes an adhesive chuck or an electrostatic chuck. In another exemplary implementation, the fixing unit  350  is included as an adhesive material. Also, the fixing unit  350  includes a suction unit (not marked) formed within the first jig  310  and a suction pump (not marked) suctioning air within the suction unit. A portion of the suction unit is exposed to the outside of the first jig  310 . In another exemplary implementation, the fixing unit  350  includes a separate frame, clamp, or holder that mechanically fixes the cover window  110 ″. Hereinafter, for convenience of descriptions, the fixing unit  350  including the suction unit and the suction pump will be described in detail below. 
     The auxiliary film fixing units  340   a  and  340   b  and the driving unit  360  except for the first jig  310 , the second jig  320 , and the fixing unit  350  are equal or similar to those according to the foregoing embodiment, and thus, their detailed descriptions will be omitted. Hereinafter, an operation of the laminating device  300  will be described in details. 
     When the display device  100 ″ is manufactured by using the laminating device  300 , processes similar to those according to the foregoing embodiment is performed. Particularly, as described above, the cover window  110 ″, the TSP  120 ″, and the display panel  130 ″ are manufactured and prepared. 
     When the above-described process is finished, the cover window  110 ″ is seated on the first jig  310 . Here, since one surface of the cover window  110 ″ has the same shape as the seating surface of the first jig  310 , the one surface of the cover window  110 ″ is closely attached to the seating surface of the first jig  310 . 
     As described above, when the cover window  110 ″ is seated on the first jig  310 , the suction pump may operate to suction air within the suction unit. Here, the suction unit exposed to the outer surface of the first jig  310  may absorb and fix the outer surface of the cover window  110 ″. 
     The TSP  120 ″ and the display panel  130 ″ may adhere to each other by using the second adhesive layer  142 ″, and then the first adhesive layer  141 ″ is formed on the TSP  120 ″ to fix the display panel  130 ″ to an auxiliary film  370 . Here, since the method of fixing the display panel  130 ″ to the auxiliary film  370  is equal or similar to that according to the foregoing embodiment, detailed descriptions thereof will be omitted. 
     As described above, the TSP  120 ″ and the display panel  130 ″ are fixed to the auxiliary film  370 , and then the auxiliary film  370  is fixed to the first and second auxiliary film fixing units  340   a  and  340   b . Here, the first and second auxiliary film fixing units  340   a  and  340   b  may pull both ends of the auxiliary film  370  to maintain a tension of the auxiliary film  370  at a predetermined level or more. Thus, movement of the auxiliary film  370 , the TSP  120 ″, and the display panel  130 ″ toward the second jig  320  by weights of the TSP  120 ″ and the display panel  130 ″ or an external force is prevented by the tension of the auxiliary film  370 . 
     When the above-described process is finished, the driving unit  360  may operate to move at least one of the first and second jigs  310  and  320 . Also, the first and second auxiliary film fixing units  340   a  and  340   b  may linearly move according to the operation of the driving unit  360 . However, for convenience of descriptions, the structure in which the driving unit  360  moves the first jig  310  to the second jig  320  will be described in detail below. Also, the structure in which the first and second auxiliary film fixing units  340   a  and  340   b  are fixed to fix the auxiliary film  370  will be described in detail below. 
     As described above, when the driving unit  360  operates, the first jig  310  may move to the second jig  320 , and then at least one portion of the cover window  110 ″ absorbed to he first jig  310  may contact the first adhesive layer  141 ″. 
     Here, since a central portion of the second jig  320  protrudes to have a curved shape, the first adhesive layer  141 ″ and the cover window  110 ″ are successively attached from a central portion to both ends of the cover window  110 ″. 
     Also, while the above-described process is performed, the cushion unit  330  may disperse a force applied to the cover window  110 ″, the TSP  120 ″ and the display panel  130 ″. Particularly, the cushion unit  330  may remove bubbles generated between the first adhesive layer  141 ″ and the outer surface of the cover window  110 ″ in addition to the dispersion of the force as described above. 
     Thus, the laminating device  300  may successively attach the cover window  110 ″ and the panel member  190 ″ to each other to maximally prevent the generation of the bubbles. Also, the laminating device  300  may manufacture the display device  100 ″ in various shapes. 
     Particularly, when the display device  100 ″ is manufactured by using the laminating device  300 , the panel member  190 ″ is fixed by using the auxiliary film  370  to minimize damage of the panel member  190 ″ due to the external force. 
       FIG. 8  is a cross-sectional view of a laminating device  400  according to further another embodiment of the disclosed technology.  FIG. 9  is a cross-sectional view of a display device  500  manufactured by using the laminating device  400  shown in  FIG. 8 . 
     Referring to  FIGS. 8 and 9 , the display device  500  may include a cover window  510 , a first adhesive layer  541 , a panel member ( 590 ), and a second adhesive layer  542 . Here, the panel member  590  may include at least one of a touch screen panel (TSP)  520  and a display panel  530 . Hereinafter, for convenience of descriptions, the panel member  590  including all of the TSP  520  and the display panel  530  will be described in details. The cover window  510 , the first adhesive layer  541 , the TSP  520 , the second adhesive layer  542 , and the display panel  530  are similar to the cover window  110 , the first adhesive layer  141 , the TSP  120 , the second adhesive layer  142 , and the display panel  130  which are described with reference to  FIGS. 1 to 3 , respectively. 
     The cover window  510  may have both curved ends. Particularly, the cover window  510  may have a flat central portion. Here, both ends of the flat central portion are curved. Also, unlike the structure described with reference to  FIGS. 1 to 3 , the TSP  520  and the display panel  530  are formed on a protruding portion of the cover window  510 , but not be formed on a recessed portion of the cover window  510 . 
     The laminating device  400  may include a first jig  410 , a second jig  420 , a cushion unit  430  and  480 , auxiliary film fixing units  440   a  and  440   b , a fixing unit  450 , and a driving unit  460 . Here, the first jig  410  may have a shape similar to that of the cover window  510 . Particularly, a seating surface of the first jig  410  on which the cover window  510  is seated may have a shape equal or similar to that of the recessed outer surface of the cover window  510 . Here, the second jig  420  is formed above the first jig  410  when viewed in  FIG. 8  to face the first jig  410 . Here, at least one portion of the second jig  410  is matched in shape with the seating surface of the first jig  410 . Particularly, the at least one portion of the second jig  410  is recessed toward an upper side when viewed in  FIG. 8 . 
     The cushion units  430  and  480  may include a first cushion unit  480  formed on an outer surface of the first jig  410  and a second cushion unit  430  formed on an outer surface of the second jig  420 . Here, since each of the first and second cushion units  480  and  430  are equal or similar to the cushion unit  3  described with reference to  FIGS. 1 to 3 , detailed descriptions thereof will be omitted. 
     Also, the auxiliary film fixing units  440   a  and  440   b  may include a first auxiliary film fixing unit  440   a  and a second auxiliary film fixing unit  440   b . Here, the first and second auxiliary film fixing units  440   a  and  440   b  are similar to those according to the foregoing embodiment. Particularly, the first and second auxiliary film fixing units  440   a  and  440   b  are formed to face each other on side surfaces of the second jig  420 . However, the first and second auxiliary film fixing units  440   a  and  440   b  may linearly move according to movement of the driving unit  460 . Here, the first and second auxiliary film fixing units  440   a  and  440   b  may linearly move in the same direction as that of the first jig  410 . Alternatively, the first and second auxiliary film fixing units  440   a  and  440   b  are angled at a predetermined angle with respect to the linear movement direction of the first jig  410 . However, for convenience of descriptions, the structure in which the first and second auxiliary film fixing units  440   a  and  440   b  do not linearly move will be described in detail below. 
     Here, since the fixing unit  450  and the driving unit  460  are equal or similar to those described with reference to  FIGS. 6 and 7 , their detailed descriptions will be omitted. 
     Particularly, in an operation of the laminating device  400 , as described above, the cover window  510 , the TSP  520 , and the display panel  530  are manufactured and prepared. Here, the TSP  520  and the display panel  530  may adhere to each other by using the second adhesive layer  542  and thus be fixed. Also, the TSP  520  and the display panel  530  are fixed to an auxiliary film  470 . Here, since the method of fixing the TSP  520  and the display panel  530  is equal or similar to that according to the foregoing embodiment, detailed descriptions thereof will be omitted. 
     When the above-described process is finished, the cover window  510  is seated on the first jig  410 . Here, the cover window  510  is closely attached to an outer surface of the second cushion unit  480 . Also, when the cover window  510  is seated, a suction pump (not marked) may operate to fix the cover window  510  through a suction unit (not marked). 
     As described above, when the cover window  510  is seated, the auxiliary film  470  is fixed to the first and second auxiliary fixing units  440   a  and  440   b . Here, the auxiliary film  470  is maintained at a predetermined tension by the first and second auxiliary fixing units  440   a  and  440   b  as described above. 
     When the above-described process is finished, the first and second jigs  410  and  420  are aligned with each other. Here, an align key (not shown) is formed on at least one of the first and second jigs  410  and  420 . Also, an align key identification unit (not shown) identifying the align key is formed on the other one of the first and second jigs  410  and  420 . The align key identification unit may identify a position of the align key to determine whether the first and second jigs  410  and  420  are aligned with each other. In the measured result, if the first and second jigs  410  and  420  are misaligned with each other, the first and second jigs  410  and  420  are aligned again in position. Here, the method of aligning the first and second jigs  410  and  420  is not limited to the above-described method. In an exemplary implementation, all devices and methods which are capable of measuring the positions of the first and second jigs  410  and  420  to align the first and second jigs  410  and  420  with each other are applied to the disclosed technology. 
     When the above-described process is finished, the driving unit  360  may operate to press the first and second jigs  410  and  420 . Here, the first jig  410  may linearly move so that the first and second jigs  410  and  420  are adjacent to each other. 
     As described above, when the first jig  410  moves, the first adhesive layer  541  may contact the cover window  510  to fix the cover window  510 , the TSP  520 , and the display panel  530 . Here, the TSP  520  and the display panel  530  are bent and attached to the protruding outer surface of the cover window  510 . Particularly, each of the TSP  520  and the display panel  530  is flexible. Thus, the TSP  520  and the display panel  530  are bent along the outer surface of the cover window  510  from the flat state and then be attached to the outer surface of the cover window  510 . 
     When the above-described process is finished, the driving unit  460  may operate to separate the first jig  410  from the second jig  420 . Here, when the first and second jigs  410  and  420  are spaced apart from each other, the display device  500  may move as described with reference to  FIGS. 1 to 3 . 
     When the above-described process is finished, the display device  500  is withdrawn. Here, the laminating device  400  may include a chamber (not shown) and a pressure adjustment unit (not shown) connected to the chamber to maintain a vacuum state within the chamber. Particularly, the inside of the chamber is maintained in the vacuum state when the above-described process is performed. On the other hand, when the display device  500  is withdrawn, the inside of the chamber is maintained in an atmospheric state. 
     Thus, the laminating device  400  may successively attach the cover window  510  and the panel member  590  to each other to maximally prevent the generation of the bubbles. Also, the laminating device  400  may manufacture the display device  500  in various shapes. 
     Particularly, when the display device  500  is manufactured by using the laminating device  400 , the panel member  590  is fixed by using the auxiliary film  470  without directly applying a force to a panel member  590  to minimize damage of the panel member  590  due to the external force. 
       FIG. 10  is a cross-sectional view of a laminating device  600  according to further another embodiment of the disclosed technology.  FIG. 11  is a cross-sectional view of a display device  500 ′ manufactured by using the laminating device  600  shown in  FIG. 10 . 
     Referring to  FIGS. 10 and 11 , the display device  500 ′ may include a cover window  510 ′, a first adhesive layer  541 ′, a panel member ( 590 ′), and a second adhesive layer  542 ′. Also, the panel member  590 ′ may include at least one of a touch screen panel (TSP)  520 ′ and a display panel  530 ′. Hereinafter, for convenience of descriptions, the panel member  590 ′ including all of the TSP  520 ′ and the display panel  530 ′ will be described in details. 
     The cover window  510 ′, the first adhesive layer  541 ′, the TSP  520 ′, the second adhesive layer  542 ′, and the display panel  530 ′ are similar to the cover window  510 , the first adhesive layer  541 , the TSP  520 , the second adhesive layer  542 , and the display panel  530  which are described with reference to  FIGS. 8 and 9 , respectively. 
     Here, the cover window  510 ′ may have at least one curved portion. Particularly, the cover window  510 ′ may have a curved surface having a predetermined radius curvature. Specifically, the cover window  510 ′ may have a curved surface with a radius curvature R in a length or width direction thereof. Hereinafter, for convenience of descriptions, the cover window  510 ′ having the curved surface with the radius curvature R in the length direction thereof will be described in detail below. 
     The laminating device  600  may include a first jig  610 , a second jig  620 , cushion units  630  and  680 , auxiliary film fixing units  640   a  and  640   b , a fixing unit  650 , and a driving unit  660 . Here, the first jig  610 , the second jig  620 , the cushion units  630  and  680 , the auxiliary film fixing units  640   a  and  640   b , the fixing unit  650 , and the driving unit  660  are similar to those described with respect to  FIGS. 8 and 9 . 
     At least one portion of an outer surface of the first jig  610  may have the same shape as an outer surface of the cover window  510 ′. Specifically, at least one portion of an outer surface of the first jig  610  may have a curved surface with a predetermined radius curvature similar to that of an outer surface of the cover window  510 ′. Here, the curved surface formed on the outer surface of the first jig  610  may protrude toward an upper side when viewed in  FIG. 10 . 
     An outer surface of the second jig  620  is matched in shape with the outer surface of the first jig  610 . Particularly, the outer surface of the second jig  620  is recessed to match the protruding outer surface of the first jig  610 . Here, the outer surface of the second jig  620  may have a predetermined radius curvature. 
     The fixing unit  650  may have various structures as described above. In an exemplary implementation, the fixing unit  650  includes an adhesive chuck or an electrostatic chuck. Alternatively, the fixing unit  350  is included as an adhesive material. Also, the fixing unit  650  may include a suction unit (not marked) formed within the first jig  610  and of which a portion is exposed to the outside of the first jig  610  and a suction pump (not marked) suctioning air within the suction unit. Particularly, the fixing unit  650  may include a separate frame, clamp, or holder that mechanically fixes the cover window  510 ′. Hereinafter, for convenience of descriptions, the fixing unit  650  including the suction unit and the suction pump will be described in details. 
     The auxiliary film fixing units  640   a  and  640   b  and the driving unit  660  except for the first jig  610 , the second jig  620 , and the fixing unit  650  are equal or similar to those described above, and thus, their detailed descriptions will be omitted. Hereinafter, an operation of the laminating device  600  will be described in detail below. 
     When the display device  500 ′ is manufactured by using the laminating device  600 , processes similar to those described above are performed. Particularly, as described above, the cover window  510 ′, the TSP  520 ′, and the display panel  530 ′ are manufactured and prepared. 
     When the above-described process is finished, the cover window  510 ′ is seated on the first jig  610 . Here, since one surface of the cover window  510 ′ has the same shape as the seating surface of the first jig  610  on which the cover window  510 ′ is seated, the one surface of the cover window  510 ′ is closely attached to the first cushion unit  680 . 
     As described above, when the cover window  510 ′ is seated on the first cushion  680 , the suction pump may operate to suction air within the suction unit. Here, the suction unit exposed to the outer surface of the first cushion  680  may absorb and fix the outer surface of the cover window  510 ′. 
     The TSP  520 ′ and the display panel  530 ′ may adhere to each other by using the second adhesive layer  542 ′, and then the first adhesive layer  541 ′ is formed on the TSP  520 ′ to fix the display panel  530 ′ to an auxiliary film  670 . Here, since the method of fixing the display panel  530 ′ to the auxiliary film  670  is equal or similar to that described above, detailed descriptions thereof will be omitted. 
     As described above, the TSP  520 ′ and the display panel  530 ′ are fixed to the auxiliary film  670 , and then the auxiliary film  670  is fixed to the first and second auxiliary film fixing units  640   a  and  640   b . Here, the first and second auxiliary film fixing units  640   a  and  640   b  may pull both ends of the auxiliary film  670  to maintain a tension of the auxiliary film  670  at a predetermined level or more. Thus, movement of the auxiliary film  670 , the TSP  520 ′, and the display panel  530 ′ toward the second jig  620  by weights of the TSP  520 ′ and the display panel  530 ′ or an external force are prevented by the tension of the auxiliary film  670 . 
     When the above-described process is finished, the driving unit  660  may operate to move at least one of the first and second jigs  610  and  620 . Also, the first and second auxiliary film fixing units  640   a  and  640   b  may linearly move according to the operation of the driving unit  660 . However, for convenience of descriptions, the structure in which the driving unit  660  moves the first jig  610  to the second jig  620  will be described in detail below. Also, the structure in which the first and second auxiliary film fixing units  640   a  and  640   b  are fixed to fix the auxiliary film  670  will be described in detail below. 
     As described above, when the driving unit  660  operates, the first jig  610  may move to the second jig  620 , and then at least one portion of the cover window  510 ′ absorbed to he first jig  610  may contact the first adhesive layer  541 ′. 
     Here, since a central portion of the cover window  510 ′ protrudes to have a curved shape, the first adhesive layer  5411  and the cover window  5101  are successively attached from the central portion to both ends of the cover window  510 ′. 
     Also, while the above-described process is performed, the first and second cushion units  680  and  630  may disperse a force applied to the cover window  510 ′, the TSP  520 ′ and the display panel  530 ′. Particularly, the first and second cushion units  680  and  630  may remove bubbles generated between the first adhesive layer  541 ′ and the outer surface of the cover window  510 ′ in addition to the dispersion of the force as described above. 
     Thus, the laminating device  600  may successively attach the cover window  510 ′ and the panel member  590 ′ to each other to maximally prevent the generation of the bubbles. Also, the laminating device  600  may manufacture the display device  500 ′ in various shapes. 
     Particularly, when the display device  500 ′ is manufactured by using the laminating device  600 , the panel member  590 ′ is fixed by using the auxiliary film  670  without directly applying a force to a panel member  590 ′ to minimize damage of the panel member  590 ′ due to the external force. 
       FIG. 12  is a cross-sectional view of a laminating device  700  according to further another embodiment of the disclosed technology.  FIG. 13  is a cross-sectional view of a display device  500 ″ manufactured by using the laminating device  700  shown in  FIG. 12 . 
     Referring to  FIGS. 12 and 13 , the display device  500 ″ may include a cover window  510 ″, a first adhesive layer  541 ″, a panel member ( 590 ″), and a second adhesive layer  542 ″. Also, the panel member  590 ″ may include at least one of a touch screen panel (TSP)  520 ″ and a display panel  530 ″. Hereinafter, for convenience of descriptions, the panel member  590 ″ including all of the TSP  520 ″ and the display panel  530 ″ will be described in detail below. 
     The cover window  510 ″, the first adhesive layer  541 ″, the TSP  520 ″, the second adhesive layer  542 ″, and the display panel  530 ″ are similar to the cover window  510 , the first adhesive layer  541 , the TSP  520 , the second adhesive layer  542 , and the display panel  530  which are described with reference to  FIGS. 8 and 9 , respectively. 
     Here, the cover window  510 ″ may have at least one curved portion. Particularly, the cover window  510 ″ may have a curved surface having at least one radius curvature. Specifically, the cover window  510 ″ may have a first curved surface with a radius curvature R 1 , a second curved surface with a radius curvature R 2 , and a third curved surface with a radius curvature R 3  in a length or width direction thereof. Here, the cover window  510 ″ may have curved surfaces with curvature radii R 4 , R 5 , . . . , RN (where N is natural number) in addition to the curved surfaces having the curvature radii R 1 , R 2 , and R 3 . However, for convenience of descriptions, the cover window  510 ″ having the first, second, and third curved surfaces with the curvature radii R 1 , R 2 , and R 3  in the width direction thereof will be described in detail below. 
     The laminating device  700  may include a first jig  710 , a second jig  720 , cushion units  730  and  780 , auxiliary film fixing units  740   a  and  740   b , a fixing unit  750 , and a driving unit  760 . Here, the first jig  710 , the second jig  720 , the cushion units  730  and  780 , the auxiliary film fixing units  740   a  and  740   b , the fixing unit  750 , and the driving unit  760  are similar to those described with respect to  FIGS. 8 and 9 . 
     At least one portion of an outer surface of the first jig  710  may have the same shape as an outer surface of the cover window  510 ″. Specifically, at least one portion of an outer surface of the first jig  710  has a curved surface with at least one curvature radius similar to that of an outer surface of the cover window  510 ″. Here, the curved surface formed on the outer surface of the first jig  710  may protrude toward an upper side when viewed in  FIG. 12 . 
     An outer surface of the second jig  720  is matched in shape with the outer surface of the first jig  710 . Particularly, the outer surface of the second jig  720  is recessed to match the recessed outer surface of the first jig  710 . Here, the outer surface of the second jig  720  may have at least one curvature radius. 
     The fixing unit  750  may have various structures as described above. In an exemplary implementation, the fixing unit  750  includes an adhesive chuck or an electrostatic chuck. Alternatively, the fixing unit  350  is included as an adhesive material. Also, the fixing unit  750  may include a suction unit (not marked) formed within the first jig  710  and of which a portion is exposed to the outside of the first jig  710  and a suction pump (not marked) suctioning air within the suction unit. Particularly, the fixing unit  750  may include a separate frame, clamp, or holder that mechanically fixes the cover window  510 ″. Hereinafter, for convenience of descriptions, the fixing unit  750  including the suction unit and the suction pump will be described in detail below. 
     The auxiliary film fixing units  740   a  and  740   b  and the driving unit  760  except for the first jig  710 , the second jig  720 , and the fixing unit  750  are equal or similar to those described above, and thus, their detailed descriptions will be omitted. Hereinafter, an operation of the laminating device  700  will be described in detail below. 
     When the display device  500 ″ is manufactured by using the laminating device  700 , processes similar to those described above is performed. Particularly, as described above, the cover window  510 ″, the TSP  520 ″, and the display panel  530 ″ are manufactured and prepared. 
     When the above-described process is finished, the cover window  510 ″ is seated on the first jig  710 . Here, since one surface of the cover window  510 ″ has the same shape as the seating surface of the first jig  710  on which the cover window  510 ″ is seated, the one surface of the cover window  510 ″ is closely attached to the first cushion unit  780 . 
     As described above, when the cover window  510 ″ is seated on the first cushion  780 , the suction pump may operate to suction air within the suction unit. Here, the suction unit exposed to the outer surface of the first cushion  780  may absorb and fix the outer surface of the cover window  510 ″. 
     The TSP  520 ″ and the display panel  530 ″ may adhere to each other by using the second adhesive layer  542 ″, and then the first adhesive layer  541 ″ is formed on the TSP  520 ″ to fix the display panel  530 ″ to an auxiliary film  770 . Here, since the method of fixing the display panel  530 ″ to the auxiliary film  770  is equal or similar to that described above, detailed descriptions thereof will be omitted. 
     As described above, the TSP  520 ″ and the display panel  530 ″ are fixed to the auxiliary film  770 , and then the auxiliary film  770  is fixed to the first and second auxiliary film fixing units  740   a  and  740   b . Here, the first and second auxiliary film fixing units  740   a  and  740   b  may pull both ends of the auxiliary film  770  to maintain a tension of the auxiliary film  770  at a predetermined level or more. Thus, movement of the auxiliary film  770 , the TSP  520 ″, and the display panel  530 ″ toward the second jig  720  by weights of the TSP  520 ″ and the display panel  530 ″ or an external force is prevented by the tension of the auxiliary film  770 . 
     When the above-described process is finished, the driving unit  760  may operate to move at least one of the first and second jigs  710  and  720 . Also, the first and second auxiliary film fixing units  740   a  and  740   b  may linearly move according to the operation of the driving unit  760 . However, for convenience of descriptions, the structure in which the driving unit  760  moves the first jig  710  to the second jig  720  will be described in detail below. Also, the structure in which the first and second auxiliary film fixing units  740   a  and  740   b  are fixed to fix the auxiliary film  770  will be described in details. 
     As described above, when the driving unit  760  operates, the first jig  710  may move to the second jig  720 , and then at least one portion of the cover window  510 ″ absorbed to he first jig  710  may contact the first adhesive layer  541 ″. 
     Here, since a central portion of the second jig  720  protrudes to have a curved shape, the first adhesive layer  541 ″ and the cover window  510 ″ are successively attached from a central portion to both ends of the cover window  510 ″. 
     Also, while the above-described process is performed, the first and second cushion unit  780  and  730  may disperse a force applied to the cover window  510 ′, the TSP  520 ′ and the display panel  530 ′. Particularly, the first and second cushion units  780  and  730  may remove bubbles generated between the first adhesive layer  541 ″ and the outer surface of the cover window  510 ″ in addition to the dispersion of the force as described above. 
     Thus, the laminating device  700  may successively attach the cover window  510 ″ and the panel member  590 ″ to each other to maximally prevent the generation of the bubbles. Also, the laminating device  700  may manufacture the display device  500 ″ in various shapes. 
     Particularly, when the display device  500 ″ is manufactured by using the laminating device  700 , the panel member  590 ″ are fixed by using the auxiliary film  770  without directly applying a force to a panel member  590 ″ to minimize damage of the panel member  590 ″ due to the external force. 
     According to the embodiments of the disclosed technology, the cover window and the panel member  590 ″ of which portions respectively have the curved shapes is quickly accurately attached to each other to improve productivity and quality reliability. Also, according to the embodiments of the disclosed technology, since the display device is quickly manufactured, the working time and the manufacturing costs is reduced. 
     For purposes of summarizing the disclosed technology, certain aspects, advantages and novel features of the disclosed technology have been described herein. It is to be understood that not necessarily all such advantages is achieved in accordance with any particular embodiment of the disclosed technology. Thus, the disclosed technology is embodied or carried out in a manner that achieves or optimizes one advantage or group of advantages as taught herein without necessarily achieving other advantages as is taught or suggested herein. 
     Various modifications of the above described embodiments will be readily apparent, and the generic principles defined herein is applied to other embodiments without departing from the spirit or scope of the disclosed technology. Thus, the disclosed technology is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. 
     While the disclosed technology has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details is made therein without departing from the spirit and scope of the disclosed technology as defined by the following claims.