Patent Publication Number: US-2012037317-A1

Title: Panel attaching device

Description:
BACKGROUND OF THE INVENTION 
     (1) Field of the Invention 
     The present invention relates to attach panels, and more particularly, to an device for attaching precisely a panel (a first panel) to another panel (a second panel) without a UV (ultraviolet) curing agent overflowing from the panels, by adjusting the balance of the first panel and applying the UV curing agent after forming a dam. 
     (2) Description of the Related Arts 
     In many electronic devices, a keyboard or mouse is used for inputting data. However, it is difficult to use the keyboard or mouse while carrying electronic devices. 
     Recently, a touch panel is widely used for inputting data into electronic devices. The touch panel has advantages that it is simple and easy to input data. Further, the electronic device having the touch panel does not need additional input devices and can be used while carrying. 
     The touch panel is arranged on the display surface of a flat panel display such as an electronic scheduler, a liquid crystal display (LCD), a plasma display panel (PDP), an electroluminescence (EL) display, etc., or a Cathode Ray Tube (CRT). The touch panel is divided into a resistive type, a capacitive type, an electro-magnetic type, a saw type, an infrared type, etc. 
     The type of the touch panel is selected by the amplification of signal, the difference of resolution, the difficulty of design or manufacturing, etc. In addition, the type is also selected by the optical, electrical and mechanical property of the panel. Generally, the resistive type and the capacitive type are widely used to an electronic scheduler, a personal digital assistant (PDA), a portable PC, a cellular phone, etc. 
     In the resistive type of touch panel, an upper electrode and a lower electrode are formed by combining a film substrate having 0.1-0.2 mm thickness, a glass substrate having 0.2-2 mm thickness and a plastic substrate having 1-2 mm thickness, and the upper electrode is formed on an upper substrate and the lower electrode is formed on a lower substrate. 
     When a point of the upper substrate is touched by a pen or a finger, electric current is passed between the upper electrode and the lower electrode and the resistance of the point is changed. And then, a control device searches the coordinates of the touched point by using the changed resistance. 
     A conventional touch panel for a LCD device includes an overlay film arranged on a surface of the LCD device, a first ITO film arranged on the lower side of the overlay film to input information into a LCD module, and a second ITO film attached to the upper surface of a substrate to input information into the LCD module. 
     The overlay film is arranged to protect the first ITO film and made of PET (PolyEthylene Terephthalate) film. The first ITO film is attached to the overlay film by OCA (Optical Clear Adhesive). 
     The first ITO film and the second ITO film include electrodes arranged on each edge thereof, and is spaced apart from each other by AG Dot (now shown). The first ITO film and the second ITO film are connected to each other by touching with a pen or a finger so that the touched position is detected. 
     However, in the conventional method for attaching the touch panel to the LCD module (or LCD), the balance of the touch panel and the LCD module is not considered. Therefore, there are problems that an adhesive for attaching is leaked out the outside of the touch panel or the LCD module and the distance between the touch panel and the LCD module is uneven, thereby degrading the quality of products. 
     SUMMARY OF THE INVENTION 
     The present invention has been developed to solve the problems with above-described panel attaching device. 
     It is an object of the present invention to provide a panel attaching device capable of attaching precisely a first panel and a second panel at a regular interval without leaking a UV curing agent. 
     It is another object of the present invention to provide a panel attaching device capable of performing all process for attaching automatically in a short time, thereby being capable of manufacturing high quality of products. 
     Further objects will become apparent from the drawings and from the following detailed description. 
     In accomplishing the above and other objectives, a panel attaching device for attaching a first panel and a second panel according to the present invention comprises a first panel tilting unit for setting the first panel, adjusting the balance of the first panel and lifting up the first panel; a sensor for detecting the balance of the first panel; a second panel setting unit for setting and rotating the second panel, wherein the second panel setting unit is arranged at a predetermined distance from the first panel tilting unit; and a guide moving unit for moving the second panel setting unit to the first panel tilting unit. 
     A panel attaching device for attaching a first panel and a second panel according to the present invention comprises a fixing base; a first panel tilting unit for setting the first panel, adjusting the balance of the first panel and lifting up the first panel, wherein the first panel tilting unit is arranged in an upper side of the fixing base; a sensor for detecting the balance of the first panel; a second panel setting unit for setting and rotating the second panel, wherein the second panel setting unit is arranged in the other upper side of the fixing base; a dispenser for applying a UV curing agent to the first panel or the second panel; a curing unit for curing the UV curing agent; and a guide moving unit for moving the second panel setting unit to the first panel tilting unit, wherein the guide moving unit is arranged on the fixing base. 
     The first panel tilting unit comprises a lifting plate for lifting up and down, wherein the lifting plate is arranged on the upper side of the fixing base; a tilting plate for tilting, wherein the tilting plate is pivot-coupled to the upper side of the lifting plate on a pivot; a setting plate for setting the first panel, wherein the setting plate is fixed to the upper side of the tilting plate; a lifting servo motor for lifting up and down the setting plate, wherein the lifting servo motor is coupled to the lower surface of the lifting plate; a bearing unit arranged in the lower side of the tilting plate; and a plurality of tilting servo motors for adjusting the balance of the tilting plate on the pivot, wherein the tilting servo motors are coupled to the bearing unit or the tilting plate. 
     The second panel setting unit  140  comprises a vertical post arranged at a predetermined distance from the first panel tilting unit; a rotation unit arranged in the vertical post; and a setting plate for setting the second panel. The setting plate is arranged in the rotation axis of the rotation unit. 
     The guide moving unit comprises a moving screw coupled to the vertical post; and a servo motor for rotating the moving screw. 
     Another panel attaching device for attaching a first panel and a second panel according to the present invention comprises a main base; a turn table for being rotated by an index motor, wherein the turn table is arranged in the center of the main base; and a panel attaching unit for setting the first panel, adjusting the balance of the first panel, setting and rotating the second panel, and lifting up the first panel to attach the first panel to the second panel, the panel attaching unit is arranged on the turn table. 
     One or more of the panel attaching units may be arranged on the turn table. 
     In case that a plurality of the panel attaching units are arranged on the turn table, each of the panel attaching unit is maintained at a regular interval. 
     The panel attaching unit comprises a fixing base, a first panel tilting unit, a sensor, a second panel setting unit and a guide moving unit. 
     The fixing base is fixed on the turn table. 
     The first panel tilting unit includes a lifting plate for lifting up and down on the fixing base; a tilting plate for tilting, wherein the tilting plate is pivot-coupled to the upper side of the lifting plate on a pivot; a setting plate for setting the first panel on the upper surface thereof, wherein the setting plate is fixed to the upper side of the tilting plate; a lifting servo motor for lifting up and down the setting plate, wherein the lifting servo motor is coupled to the lower surface of the lifting plate; a bearing unit arranged in the lower side of the tilting plate; and a plurality of tilting servo motors for adjusting the balance of the tilting plate on the pivot, wherein the tilting servo motors are coupled to the bearing unit or the tilting plate. 
     The sensor detects the balance of the first panel absorbed on the setting plate. 
     The second panel setting unit includes a vertical post arranged in a predetermined distance from the first panel tilting unit; a rotation unit arranged in the vertical post; and a setting plate for setting the second panel. The setting plate is arranged on a rotation axis of the rotation unit. 
     The guide moving unit is arranged on the fixing base and moves the second panel setting unit to the first panel tilting unit. 
     The panel attaching unit includes a dispenser for applying a UV curing agent to the first panel or the second panel; and a curing unit for curing the UV curing agent. 
     In the panel attaching device according to the present invention, the balance of the first panel is adjusted and a UV curing agent is applied to the first panel or the second panel after forming a dam, so that the UV curing agent is not overflowed from the panels and the first panel and the second panel can be maintained at a regular interval, thereby being capable of manufacturing high quality of products. 
     Further, all process for attaching is performed automatically in a short time, thereby being capable of decreasing defects and increasing productivity. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a front view showing the panel attaching device according to an embodiment of the present invention. 
         FIG. 2  is a side view showing the panel attaching device of  FIG. 1 . 
         FIG. 3  is a top view showing the panel attaching device of  FIG. 1 . 
         FIG. 4  is a top view showing the panel attaching device according to another embodiment of the present invention. 
         FIG. 5  is a front view showing a panel attaching unit in the panel attaching device of  FIG. 4 . 
         FIG. 6  is a side view showing a panel attaching unit in the panel attaching device of  FIG. 4 . 
         FIG. 7  is a top view showing a panel attaching unit in the panel attaching device of  FIG. 4 . 
       
         
           
             
                 
               
                 
                     
                 
                 
                   (Description of Reference Numerals) 
                 
                 
                     
                 
               
              
                 
                     
                 
              
             
             
                 
                 
                 
              
                 
                     
                   P1: fist panel 
                   P2: second panel 
                 
                 
                     
                   B: main base 
                   T: turn table 
                 
                 
                     
                   100: panel attaching unit 
                   L: loading unit 
                 
                 
                     
                   110: fixing base 
                 
                 
                     
                   120: first panel tilting unit 
                 
                 
                     
                   121: fixing plate 
                   122: guider 
                 
                 
                     
                   123: lifting plate 
                   pv1: pivot 
                 
                 
                     
                   124: tilting plate 
                   125: setting plate 
                 
                 
                     
                   126: lifting servo motor 
                   127: bearing unit 
                 
                 
                     
                   pv2: pivot 
                 
                 
                     
                   128, 128′: tilting servo motor 
                 
                 
                     
                   130: sensor 
                 
                 
                     
                   140: second panel setting unit 
                 
                 
                     
                   141: vertical post 
                   142: rotation unit 
                 
              
             
             
                 
                 
              
                 
                     
                   142a: rotation axis of rotation unit 
                 
              
             
             
                 
                 
                 
              
                 
                     
                   150: guide moving unit 
                   151: moving screw 
                 
                 
                     
                   153: servo motor 
                 
                 
                     
                     
                 
              
             
           
         
       
     
    
    
     DETAILED DESCRIPTION OF THE EMBODIMENTS 
     Referring now to attaching the drawings, a panel attaching device according to an embodiment of the present invention will be described in detail. 
       FIG. 1  to  FIG. 3  illustrate a rigid structure of a panel attaching device capable of fixing on the ground or a movable plate according to an embodiment of the present invention, and  FIG. 4  to  FIG. 7  illustrate a turn table structure of a panel attaching device according to another embodiment of the present invention. 
       FIG. 1  is a front view of a panel attaching device according to an embodiment of the present invention,  FIG. 2  is a side view of the panel attaching device of  FIG. 1 , and  FIG. 3  is a top view of the panel attaching device of  FIG. 1 . 
     As shown  FIG. 1  to  FIG. 3 , the panel attaching device  100  according to an embodiment of the present invention attaches a first panel P 1  to a second panel P 2 . The panel attaching device includes a fixing base  110 ; a first panel tilting unit  120  for setting the first panel P 1 , adjusting the balance of the first panel P 1  and lifting up the first panel P 1  to press the first panel P 1  and the second panel P 2 , wherein the first panel tilting unit  120  is arranged in an upper side of the fixing base  110 ; a sensor  130  for sensing the balance of the first panel P 1 ; a second panel setting unit  140  for setting and rotating the second panel P 2 , wherein the second panel setting unit  140  is arranged on the other upper side of the fixing base  110 ; a dispenser D for applying a UV curing agent to the first panel P 1  or the second panel P 2 ; a curing unit Q for curing the UV curing agent; and a guide moving unit  150  for moving the second panel setting unit  140  to the first panel tilting unit  120 , wherein the guide moving unit  150  is arranged on the fixing base  110 . 
     The first panel P 1  and the second panel P 2 , for example, may be a touch screen panel (TSP), a window, a LCD module or LCD device. In addition, a substrate, a film, etc. are used as the first panel P 1  or the second panel P 2 . 
     The panel attaching device  100  according to an embodiment of the present invention is useful in cases where the panels should be attached to each other while maintaining the balance. 
     A loading unit (not shown) and a pre-processing unit (not shown) may be arranged in the preceding part of the panel attaching device  100 . The loading unit loads the first panel P 1  and the second panel P 2  to the panel attaching device  100  and the pre-processing unit adjacent to the loading unit pre-processes the first panel P 1  and the second panel P 2  before providing the first panel P 1  and the second panel P 2  to the panel attaching device  100 . 
     The panel attaching device  100  includes a fixing base  110 , a first panel tilting unit  120 , a sensor  130 , a second panel setting unit  140 , a dispenser D, a curing unit Q and a guide moving unit  150 . 
     First, the fixing base  110  is provided and a fixing plate  121  is arranged and fixed in the fixing base  110 . A guider  122  is arranged in the upper side of the fixing plate  121 . A lifting plate  123  for lifting up and down is arranged in the upper side of the guider  122 . Alternatively, the lifting plate  123  may be arranged to lift up and down perpendicularly on the fixing base  110  by using another means. It is well known that the lifting plate  123  is arranged to lift up and down on the fixing base  110  by various other methods, so that the detailed explanation thereabout is omitted here. 
     A tilting plate  124  is coupled to the upper side of the lifting plate  123  to tilt on a pivot pv 1 . 
     A setting plate  125  is fixed to the upper side of the tilting plate  124 , and the first panel P 1  is set on the upper surface of the setting plate  125 . A lifting servo motor  126  is coupled to the lower surface of the lifting plate  123  so that the setting plate  125  can be lifted up and down. A bearing unit  127  is arranged in the lower side of the tilting plate  124 . A plurality of tilting servo motors  128 ,  128 ′ is coupled to the bearing unit  127  or the tilting plate  124  on a pivot pv 2 , so that the balance of the tilting plate  124  can be adjusted. 
     The sensor  130  detects the balance of the first panel P 1 . In case of sensing of the balance by the sensor, the sensor may be contacted to the panel or non-contacted to the panel such as an optical sensor. It is well known that the balance of the panel is detected by the sensor, so that the detailed explanation thereabout is omitted here. 
     The second panel setting unit  140  includes a vertical post  141 , a rotation unit  142  and a setting plate  143 . 
     First, the vertical post  141  is arranged at a regular distance from the first panel tilting unit  120 . 
     The rotation unit  142  is arranged in the vertical post  141 . The setting plate  143  is arranged the rotation axis  142   a  of the rotation unit  142 , and the second panel P 2  is set on the setting plate  143 . 
     The setting plates  125 ,  143  have a vacuum hole (not shown) for adsorbing and fixing the first panel P 1  and the second panel P 2 . The vacuum hole is well known, so that the detailed explanation thereabout is omitted here. 
     It is desirable that the setting plate  143  for setting the second panel P 2  is made of materials such as glass, acryl, etc., through which light can transmit. Because the curing process is performed by irradiating UV light, the efficiency of curing is increased by using the setting plate  143  made of transparent materials through which light can transmit. 
     The rotation unit  142  may be a DD motor or a servo motor, and replaced by other devices having the same or similar function. 
     The dispenser D applies a UV curing agent to the surface of the first panel P 1  or the second panel P 2 . The dispenser D comprises a dispenser D 1  for applying a dam shaped UV curing agent to the outer surface of the first panel P 1  or the second panel P 2 , and dispensers D 2 , D 3  for applying the UV curing agent to the whole surface of the first panel P 1  or the second panel P 2 . Alternatively, only one dispenser D can apply simultaneously the dam shaped UV curing agent to the surface of the second panel P 2  and the UV curing agent to the surface of the first panel P 1  or the second panel P 2 . 
     As described above, after forming the dam on the first panel P 1  or the second panel P 2 , the UV curing agent is applied to the first panel P 1  or the second panel P 2 . Thus, by the dam, the UV curing agent is not overflowed from the attached panels and not exposed to the outside after attaching the first panel P 1  and the second panel P 2 , thereby being capable of manufacturing high quality of products. 
     The curing unit Q for curing the UV curing agent performs an process for curing the dam shaped UV curing agent formed on the surface of the first panel P 1  or the second panel P 2  and the other process for curing the UV curing agent applied on the surface of the first panel P 1  or the second panel P 2 . According to process or design conditions, one or more curing units Q can be arranged. 
     The dam can be formed by a dot, a polyhedron or a stick shaped spacer. That is, by using the UV curing agent, a dot, a polyhedron or stick shaped spacer is formed continuously in the outer surface of the panel or formed on a part or whole surface of the panel, and then the UV curing agent is cured by irradiating UV light. The spacer can be formed by a printing process using a mask pattern. 
     The guide moving unit  150  comprises a moving screw  151  for coupling with the vertical post  141  and a servo motor  153  for rotating the moving screw  151 . 
     Next, the operation of the panel attaching device  100  according to an embodiment of the present invention will be described. 
     The first panel P 1  is loaded on the setting plate  125  of the first panel tilting unit  120 , and the second panel P 2  is loaded on the setting plate  143  of the second panel setting unit  140 . 
     The sensor detects the balance of the first panel P 1  set on the setting plate  125 . The tilting servo motors  128 ,  128 ′ are driven to tilt the tilting plate  124  on the pivot pv 1  so that the balance of the first panel is adjusted. 
     The dam made of the UV curing agent is formed on the first panel P 1  or the second panel P 2  by the dispensers D, D 1 . And then, the curing unit Q cures the dam shaped UV curing agent formed on the surface of the first panel P 1  or the second panel P 2 . 
     The curing unit Q has a UV radiation lamp arranged in the curing position and radiates UV light to the UV curing agent. The operation of the curing unit Q is well known, so that the detailed explanation thereabout is omitted here. 
     The dispensers D, D 2  apply the UV curing agent on the surface of the first panel P 1  or the second panel P 2 . The second curing agent may be applied on surface of the first panel P 1  or the second panel P 2  by another dispensers D, D 3 . 
     One or more dispensers are arranged according to the process design. 
     Generally, above described dispenser D is used to dispense a viscosity solution such as epoxy resin so that surface mounted components such as chips or ICs is mounted on a printed circuit board (PCB) or a panel. The dispenser D is also used to a flip chip under-fill process which applies an adhesive and seals around chips to protect semiconductor devices from outside environment. The operation of the dispenser is well known, so that the detailed explanation thereabout is omitted here. 
     The servo motor  153  of the guide moving unit  150  rotates the moving screw  151 , and then the vertical post  141  coupled in the moving screw  151  moves toward the first panel tilting unit  120 . 
     The rotation unit  142  rotates the second panel P 2  in a 180 degree. Then the lifting servo motor  126  is driven to lift up the setting plate  125  so that the first panel P 1  and the second panel P 2  are pressed and adhered closely. 
     Next, the curing unit Q cures and attaches the first panel P 1  and the second panel P 2 . 
     After attaching the panels, the first panel P 1  and the second panel P 2  are unloaded to the outside of the panel attaching device  100 . 
     As described above, in the panel attaching device according to the present invention, the first panel P 1  and the second panel P 2  are attached while adjusting precisely the balance of the first panel P 1 , so that the UV curing agent is not overflowed during attaching panels and the first panel P 1  and the second panel P 2  are maintained at a regular interval. Therefore, high-quality of products can be manufactured by the panel attaching device. 
       FIG. 4  is a top view showing a panel attaching device according to another embodiment of the present invention,  FIG. 5  is a front view showing a panel attaching unit in the panel attaching device of  FIG. 4 ,  FIG. 6  is a side view showing the panel attaching unit in the panel attaching device of  FIG. 4 , and  FIG. 7  is a top view showing the panel attaching unit in the panel attaching device of  FIG. 4 . 
     In  FIG. 4  to  FIG. 7 , four panel attaching units are arranged uniformly on the turn table T. However, alternatively, one or more panel attaching units  200 ′ are arranged on the turn table T. 
     In case that one panel attaching unit  200 ′ is arranged, the processes for attaching are controlled easily. 
     Otherwise, in case that a plurality of panel attaching units is arranged, the processes for attaching have a high degree of efficiency. The plurality of panel attaching units can be arranged at a regular interval, or at a different interval according to the process design. 
     The panel attaching device  200  according to another embodiment of the present invention comprises a main base B; a turn table T for being rotated by an index motor M 1 , wherein the turn table T is arranged in the center of the main base B; and a panel attaching unit  200 ′ for setting the first panel P 1 , adjusting the balance of the first panel P 1 , setting and rotating the second panel P 2 , and lifting up the first panel P 1  to attach the first panel P 1  to the second panel P 2 , wherein the panel attaching unit  200 ′ is arranged on the turn table T. 
     In addition, the panel attaching unit  200 ′ further comprises a loading unit L for loading the first panel P 1  and the second panel P 2  to the panel attaching device  200  and pre-processing units A, A′ for pre-processing the first panel P 1  and the second panel P 2 . 
     The panel attaching unit  200 ′ includes a fixing base  210 , a first panel tilting unit  220 , a sensor  230 , a second panel setting unit  240  and a guide moving unit  250 . 
     The fixing base  210  is fixed on the turn table T. A fixing plate  221  is arranged and fixed on the fixing base  210 . A guider  222  is arranged on the upper side of the fixing plate  221 , and a lifting plate  223  is arranged on the upper side of the guider  222  to lift up and down. 
     Instead of being arranged on the fixing plate  221  and the guider  222 , the lifting plate  223  is arranged directly on the fixing base  210  to lift up and down perpendicularly. 
     A tilting plate  224  is coupled on the upper side of the lifting plate  223  to tilt on a pivot pv 1 . 
     A setting plate  225  is fixed on the upper side of the tilting plate  224 , and the first panel P 1  is set on the upper surface of the setting plate  225 . The lifting servo motor  226  is coupled on the lower surface of the lifting plate  223  to lift up and down the setting plate  225 . A bearing unit  227  is arranged on the lower side of the tilting plate  224 . A plurality of tilting servo motors is coupled to the tilting plate  224  to adjust the balance of the tilting plate  224  on a pivot pv 2 . 
     The second panel setting unit  240  includes a vertical post  241 , a rotation unit  242  and a setting plate  243 . 
     The vertical post  241  is arranged in a predetermined distance from the first panel tilting unit  220 . The rotation unit  242  is arranged in the vertical post  241 . The setting plate  243  for setting the second panel P 2  is arranged on a rotation axis  242   a  of the rotation unit  243 . 
     The panel attaching unit  200 ′ has a dispenser D for applying a UV curing agent to the first panel P 1  or the second panel P 2 . The panel attaching unit  200 ′ includes one or more dispensers. The dispenser D applies a dam shaped UV curing agent to the surface of the first panel (or the second panel), and applies a UV curing agent to the surface of the first panel (or the second panel). 
     The panel attaching unit  200 ′ has a curing unit Q for curing the UV curing agent. One or more curing units Q are arranged according to a process design. The curing unit Q irradiates UV light on the UV curing agent applied by the dispenser D, so that the UV curing agent is cured. 
     The guide moving unit  250  of the panel attaching unit  200 ′ is arranged on the fixing base  210 . The guide moving unit  250  can move the second panel setting unit  240  to the first panel tilting unit  220 . 
     The guide moving unit  250  has a moving screw  251  for coupling with the vertical post  241  and a DD motor or a servo motor  253  for rotating the moving screw  251 . 
     Next, the operation of the panel attaching device  200  according to another embodiment of the present invention will be described. 
     First, the first panel P 1  is pre-processed by the pre-processing unit A, and then loaded on the setting plate  223  of the first panel tilting unit  220  by the loading unit L. At the same time, the second panel P 2  is pre-processed by the pre-processing unit A′, and then loaded on the setting plate  243  of the second panel setting unit  240  by the loading unit L. 
     The index motor M 1  rotates the turn table T at a predetermined angle so that the panel attaching unit  200 ′ is moved to a predetermined position. 
     The sensor  230  detects the balance of the first panel P 1  set on the setting plate  223  and the tilting servo motors  228 ,  228 ′ are driven to tilt the tilting plate  224  on the pivot pv 1 , so that the balance of the first panel P 1  is adjusted. 
     The index motor M 1  rotates the turn table T at a predetermined angle, so that the panel attaching unit  200 ′ is moved to a predetermined position. 
     The dispenser D, D 1  forms a dam of the UV curing agent on first panel P 1  or the second panel P 2 . Next, the curing unit Q cures the dam shaped UV curing agent formed on the first panel P 1  or the second panel P 2 . 
     The index motor M 1  rotates the turn table T at a predetermined angle, so that the panel attaching unit  200 ′ is moved to a predetermined position. 
     The dispensers D, D 3  apply the UV curing agent on the whole surface of the first panel P 1  or the second panel P 2 . 
     The index motor M 1  rotates the turn table at a predetermined angle, so that the panel attaching unit  200 ′ is moved to a predetermined position. 
     The servo motor  253  of the guide moving unit  250  rotates the moving screw  251 , and then the vertical post  241  coupled with the moving screw  251  moves to the first panel tilting unit  220 . 
     The rotation unit  242  rotates the second panel P 2  in a 180 degree. And, the lifting servo motor  226  is driven to lift up the setting plate  225  so that the first panel P 1  and the second panel P 2  is pressed and adhered closely. 
     Next, the curing unit Q cures and attaches the first panel P 1  and the second panel P 2 . 
     After attaching the panels, the attached the first panel P 1  and the second panel P 2  are unloaded to the outside of the panel attaching device  200 . 
     As described above, in the panel attaching device according to the present invention, the first panel P 1  and the second panel P 2  are attached by adjusting the balance of the first panel precisely and applying the UV curing agent after forming the dam, so that the UV curing agent is not overflowed from the attached panels. 
     Further, the dam is formed in a predetermined height so that the distance from first panel P 1  to the second panel P 2  is maintained at a regular interval. Therefore, the panel attaching device according to the present invention has the effect of improving the quality of products. 
     Further, in the panel attaching device according to the present invention, all process for attaching the panels performs automatically in a short time, thereby decreasing defects and increasing productivity. 
     Although the present invention has been fully described by way of examples with reference to the accompanying drawings, it is to be noted that various changes and modifications will be apparent to those skilled in the art. Therefore, unless such changes and modifications depart from the scope of the present invention, they should be construed as being included therein.