KR100465676B1 - Apparatus for transporting a mold frame for back-light in mobile phone - Google Patents

Abstract

PURPOSE: A module transfer apparatus for a back light of an LCD(Liquid Crystal Display) panel is provided to transfer the module along a guide rail through a movable cart and to fix the movable cart through a protrusion and depression portion of a transfer belt, thereby capable of exactly controlling a transfer position of the module. CONSTITUTION: A guide rail(101) is mounted to an upper end of a working table and guides a module to a previously designated film adhesive position. Movable members(110) are combined to the guide rail with a constant interval and transferred along the guide rail according to a transfer control as a constant distance. A module jig(120) is mounted to an upper end of the movable member, respectively and the module is directly placed on the module jig. The module jig has a shape like the module. A movable member transfer device is mounted to inside of the guide rail and moves the movable member along the guide rail with a constant distance. A module sensing sensor is mounted to a side of the guide rail and senses whether the module is placed to the module jig. A movable member position sensing sensor is mounted to a side of the guide rail and senses the movement position of the guide rail.

Description

Module transfer device for backlight of liquid crystal panel {APPARATUS FOR TRANSPORTING A MOLD FRAME FOR BACK-LIGHT IN MOBILE PHONE}

The present invention relates to a system for attaching a film for a backlight, and in particular, a liquid crystal display panel (LCD) of a mobile communication terminal implements a screen using a backlight (Back Light), to uniformly transmit the backlight to the front of the liquid crystal panel. In order to attach a plurality of films to the lower end of the liquid crystal panel, and to automatically attach the film and to the module transfer apparatus for backlight of the liquid crystal panel which can automatically transfer the module to the attachment position of the film.

A liquid crystal panel, which is generally used as a display device of a mobile phone, implements a screen using a backlight, and a plurality of films having diffusion, scattering, and light blocking functions are provided at the bottom of the liquid crystal panel in order to uniformly transmit the backlight to the front of the liquid crystal panel. Will be attached.

That is, before mounting the liquid crystal panel in the module (mould frame) on which the liquid crystal panel is mounted, the diffusion, scattering, and light blocking films for uniformly transferring the backlight to the front of the liquid crystal panel are sequentially stacked and attached.

The above films are supplied together with the upper and lower protective films. In the past, when the film is attached to the module, the first protective films on the upper surface are peeled off, and then the film is manually removed from the second protective film on the lower surface one by one. Lamination and attachment.

When attached to the module as described above, because the work is carried out by hand, the work efficiency is lowered and the work time is taken a lot, and the productivity is considerably reduced.

In addition, since the film is very sensitive, there is a problem in that a lot of defects occur in the film by hand, the yield is considerably lowered and the manufacturing cost increases.

Accordingly, an object of the present invention is to attach the films for evenly transmitting the backlight to the front of the liquid crystal panel to the module through an automated process instead of manually, and to automatically transfer the module, thereby improving work efficiency and productivity. The present invention provides a module transfer device for a backlight of a liquid crystal panel.

Another object of the present invention is to transfer the module along the guide rail through the moving cart and fixedly fasten the moving cart through the concavities and convexities of the transfer belt, so that the transfer position control of the module is accurate. To provide a conveying device.

Another object of the present invention, by automatically detecting the loading and unloading of the module through a sensor for detecting whether the module is seated on the mobile truck, the module transport apparatus for the backlight of the liquid crystal panel that can increase the reliability of the equipment To provide.

1a and 1b is a side view and a front view showing the film attachment equipment for the backlight of the liquid crystal panel according to the present invention.

2 is a view showing the structure of a film feeder according to the present invention.

3 is a view showing a film alignment unit according to the present invention.

4A to 4D are diagrams illustrating a module transfer machine according to an embodiment of the present invention.

5 is a circuit block diagram showing a film attachment system for a backlight according to the present invention.

6 is a view showing a state in which a plurality of films are laminated to the module according to the present invention.

7 is a flow chart showing the overall operation of Figure 5 in accordance with the present invention.

8a to 8c is a view showing a detailed process of supplying and taking out the diffusion film according to the present invention.

9a and 9b is a view showing the supply form of the scattering film according to the present invention.

10 is a detailed flowchart showing a film adsorption and attachment process according to the present invention.

11a to 11c is a detailed flowchart showing the extraction and adsorption process of the light-shielding film according to the present invention.

Explanation of symbols on the main parts of the drawings

1: Module (molded frame) 10: Film material

10-1: First Protective Film 10-2: Second Protective Film

11: first film (diffusion) 13: second film (scattering)

15: third film (scattering) 17: fourth film (diffusion)

19: fifth film (shading) 100: module transfer machine

101: guide rail 105: guide jaw

110: moving cart 111: guide wheel

115: jig support 120: module jig

121: mounting groove 125: dowel pin

130: fastening member 150: balance transfer means

151: transfer motor 153: drive gear

155: driven gear 158: transfer belt

157: slave gear 170: module detection sensor

180: balance position detection sensor 190: cleaning means

300: film feeder 310: material roll

320: roll rotation motor 321: first recovery roll

325: second recovery roll 330: take out means

340: pitch sensor 400: film waiting portion

410: standby jig 430: ejection sensor

500: film attaching machine 510: adsorption pad

520: suction jig 530: horizontal driving means (x, y axis)

540: vertical drive means (z-axis) 550: speed control unit

560: rotary motor 570: vacuum device

580: vacuum sensor 590: injection device

700: film alignment unit 710: alignment table

730: Sorting jig 750: Sorting jig

770: jig driving means (cylinder) 900: controller

910 control means

The technical means of the present invention for achieving the above object is a system for loading the module to the attachment position when the diffusion, scattering or light-shielding film for backlight to the liquid crystal display module (mold frame): A guide rail 101 installed at the top and guiding the module to an attachment position of a predetermined film; A moving trolley 110 coupled to the guide rails at a predetermined interval but moving by a predetermined distance along the guide rails 101 according to movement control; A module jig 120 mounted on an upper end of the moving cart 110 to be directly mounted on the module and having a shape similar to that of the module; A trolley transfer means (150) installed inside the guide rail (101) to move the moving cart (110) by a predetermined distance along the guide rail (101); A module detecting sensor 170 installed at one side of the guide rail 101 to detect whether the module is seated on the module jig 120; And a bogie position sensor 180 installed at one side of the guide rail 101 to sense a moving position of the guide rail 101.

Specifically, the guide rail 101 is a substantially elliptical circulation rail, the guide jaw 105 is formed to protrude slightly in the width direction on the top surface of the guide rail 101.

In addition, the moving trolley 110, a plurality of guide wheels 111 having a guide groove 112 that is matched and in close contact with the guide jaw 105 formed on the top surface of the guide rail 101; And a jig support member 115 fixedly installed at an upper end of the guide wheel 111, wherein the jig support member 115 is seated and fixed at the upper end of the guide wheel 111, wherein the module jig 120 is movable in a predetermined width. It is fixed to 115).

The balance transfer means 150, the transfer motor 151; A drive gear 153 formed on a rotating shaft of the rotating motor; A driven gear 155 installed on one inner side of the guide rail 101 to receive a rotational force of a drive gear through a belt to decelerate and rotate; A subordinate gear 157 installed inside the guide rail 101 and installed at a position corresponding to the driven gear to interlock with a driven gear; And a conveyance belt 158 installed on a rotating shaft between the driven gear and the subordinate gear 157 to move the moving cart 110 along the guide rail 101. It is installed inside the guide rail 101, and has the same circulation structure as the guide rail 101, the transfer belt 158 is formed with irregularities 159 of a predetermined interval on the surface in contact with the driven gear and the subordinate gear 157 have.

In addition, the moving cart 110 is fastened to the concave-convex 159 of the transfer belt 158 through a predetermined fastening member 130 is characterized in that it is moved in accordance with the rotation of the transfer belt 158.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1A and 1B are side and front views illustrating a module transport apparatus for a backlight of a liquid crystal panel according to the present invention, FIG. 2 is a view showing a film feeder according to the present invention, and FIG. 3 is a film alignment according to the present invention. 4A to 4D are diagrams illustrating a module transporter according to an embodiment of the present invention, and FIG. 5 is a circuit block diagram showing a film attachment system for a backlight according to the present invention. 100, a film supply unit 300, a film standby unit 400, a film attaching unit 500, a film alignment unit 700, and a controller 900.

The module feeder 100 is configured to move the module jig 120 on which the module 1 is seated along a predetermined guide rail 101 but to move by a predetermined distance, and the film feeder 300 is in a scroll form. It is configured to separate and extract the diffusion, scattering or light-shielding film from the film material while rotating the roll 110 equipped with the film material 10 of the predetermined length, the film standby unit 400 is the film feeder 300 It is a stage that is installed adjacent to the film taken from the film supply unit 300 to wait for the film adsorption, the film attacher 500 horizontally adsorbing pad 510 for adsorbing the extracted film in the x, y and z axis , Vertical movement and rotational drive is configured to stack the vacuum-adsorbed film to the module (1) transferred through the module transporter 100, the film sorter 700 is in front of the module transporter (100) Is formed and absorbed into the adsorption pad 510 of the film attacher 500 When the attached film is seated, the alignment jig 750 is configured to automatically align the film to the right position, and the controller 900 according to the user's input and the control program preset in the memory 920 module transfer unit 100 Control means 910 and input panel 930 for synchronizing the operation of the film feeder 300, the film attaching machine 500 and the film sorter 700, and controlling the overall operation according to various detection signals. ), An alarm sound generating means 940 or a monitor 950 and the like.

In general, a liquid crystal panel used as a display device of a mobile phone sequentially laminates a plurality of films having diffusion, scattering, and shading functions on a mold frame (module) in order to diffuse and scatter the backlight evenly over the front of the LCD screen. The liquid crystal panel is laminated and bonded to the upper end thereof. For example, as illustrated in FIG. 6, the first diffusion film 11, the second scattering film 13, and the third scattering film are disposed on the upper end of the module 1 (mold frame). (15), the fourth diffusion film 17 is sequentially or selectively stacked as necessary, and finally a fifth light blocking film 19 having an adhesive formed on the edge is fixed to attach the films to the module 1. do.

In this way, the plurality of films 11, 13, 15, 17, and 19 are sequentially or selectively laminated on the module 1, but the method of supplying and taking out the films is somewhat different depending on the type of each film. .

The film feeder 300 and the film attaching machine 500 are composed of a set as shown in FIG. 1A, and the film attaching machine 500 and the film feeder having a number corresponding to the number of films stacked on the module 1 300 is installed on the worktable.

The detailed configuration of the module feeder 100, the film feeder 300, the film attaching machine 500, and the film alignment unit 700 configured as described above will be described below with reference to FIGS. 2 to 5.

First, the film feeder 300, as shown in Fig. 2, the material roll 110 is equipped with a roll of the film material 10, and the first protective film covered on the upper end of the film 11 of the film material (10) A first recovery roll 321 for winding and collecting (10-1) and a second protective film 10- 10 covered on a lower end of the film 11, 13, 15, 17, or 19 of the film material 10; 2) the first recovery film 10-1 and the second protective film 10- received with the second recovery roll 325 for winding and recovering the film material 10 discharged from the material roll 110 2) take-out means 330 which separates the film 11 from the film 11, a pitch sensor 340 which is installed at the upper end of the take-out means 330 to detect a moving distance of the film, and the first and second The rotation of the recovery rolls 321 and 325 is configured, but the roll rotation motor 320 moves the film by a predetermined length.

In addition, the pitch sensor 340 located at the top of the take-out means 330 detects the moving pitch of the film material 10 and outputs it to the control means 910, so that the control means 910 is the film material 10 The roll rotation motor 320 may be controlled to move by 1-pitch.

In addition, the film standby portion 400 is installed in close contact with the front end of the dispensing means 330 of the film feeder 300, the film 11 separated from the film feeder 300 is taken out to the film standby portion 400 It is possible to wait until the adsorption pad 510 of the applicator 500 comes, and the atmospheric jig 410 on which the film taken out from the film feeder 300 is placed is placed on the top of the film standby part 400. have. The film standby part 400 is necessary only when taking out the diffusion and scattering films 11, 13, 15, and 17, and in the case of the light blocking film 19, the film waiting part is directly adsorbed to the adsorption pad 510 without an atmospheric process. There is no.

The film attacher 500 is attached to the adsorption pad 510 having a predetermined air passage therein, and attached to the bottom surface of the adsorption pad 510, and communicates with the air passage of the adsorption pad 510 so that the film is vacuum-adsorbed. A suction jig 520 in close contact, a horizontal driving means 530 for horizontally moving the suction pad 510 through the x-axis and y-axis frames, a cylinder for vertically moving the suction pad 510 through a z-axis; The same vertical driving means 540, the speed adjusting means 550 for adjusting the operating speed of the vertical driving means 540, and the suction pad 510 or the suction jig 520 is rotated at a predetermined angle. It consists of a rotary drive means 560 to adsorb the film by adsorbing the film on the adsorption pad 510 or by separately maintaining the air passage of the adsorption pad 510 in a vacuum state in order to stack the film on the module 1. The vacuum device 570 and the suction pad 510 And further comprising an injection device 590 which injects air into the passage leaving the film to force from the suction jig 520.

In addition, the vacuum device 570 is further provided with a vacuum sensor 580 in the air passage, when the film is adsorbed by the adsorption pad 510 detects the pressure change of the air passage to control the corresponding signal 910, the control means 910 can determine whether the film is adsorbed according to the detection value of the vacuum sensor 580.

In addition, the film alignment unit 700, the alignment table 710 is fixed to one side of the alignment table 710 and the alignment table 710, which is temporarily separated from the vacuum-adsorbed film to the suction pad 510 as shown in FIG. A reference jig 730, an alignment jig 750 contacting a side surface of the film seated on the alignment table 710, and an alignment jig 750 aligned with the alignment reference jig 730 in position, and the alignment table 710. When the film is seated thereon, the alignment jig 750 is operated by the alignment reference jig 730 of the alignment table 710 to the jig driving means 770 for aligning the film in position. That is, the '' 'flat plane of the alignment jig 750 is installed on the side of the alignment table 710, when the film is seated on the alignment table 710' '' by the cylinder of the jig driving means 770 While moving the alignment jig 750 of the shape toward the alignment reference jig 730 of the '' 'planar shape by pushing the side of the film to correct the film with the alignment reference jig 730 in place.

The module conveyer 100, the guide rail 101, the guide jaw 105, the moving cart 110, the guide wheel 111, the jig support 115, the module as shown in Figure 4a to 4d Jig 120, fastening member 130, balance transfer means 150, driven gear 155, slave gear 157, transfer belt 158, module detection sensor 170, balance position detection sensor 180 And cleaning means 190 and the like.

The guide rail 101 is installed on the upper end of the work table is configured to guide the module 1 to the attachment position of the predetermined film, the moving cart 110 is coupled to the guide rail 101 at regular intervals to move It is configured to move by a predetermined distance along the guide rail 101 according to the control, the module jig 120 is seated on the upper end of the moving cart 110 is directly mounted on the module and has a shape similar to the module (1) And, the balance conveying means 150 is installed inside the guide rail 101 is configured to move the moving cart 110 by a predetermined distance along the guide rail 101, the module sensor 170 is a guide Is installed on one side of the rail 101 is configured to detect whether the module is seated on the module jig 120, the balance position sensor 180 is installed on one side of the guide rail 101 of the guide rail 101 Is configured to detect movement There.

The guide rail 101 is a substantially elliptical circulation rail, and a guide jaw 105 is formed to protrude slightly in the width direction on the top surface of the guide rail 101.

In addition, the moving cart 110 includes a plurality of guide wheels 111 having guide grooves 112 that are mated with and closely adhered to the guide jaw 105 formed on the top surface of the guide rail 101, and the guide wheels 111. It is fixedly installed on the upper end of the jig support member 115 is fixed to the module jig 120 seated on the top, the module jig 120 is fixed to the jig support member 115 to be movable in a predetermined width.

The module jig 120 is a predetermined groove formed on the side of the mounting groove 121, the mounting groove 121, the adsorption jig 520 of the film attaching machine 500 is formed on the outside of the mounting groove 121 And a plurality of dowel pins 125 that match with the adsorption jig and the module jig 120.

In addition, the trolley conveying means 150 is a drive motor 151 for generating a rotational force, a drive gear 153 formed on the rotating shaft of the transfer motor 151 and installed inside the guide rail 101 to drive A driven gear 155 which is provided with a rotational force of the gear 153 through a belt and is decelerated and rotated, and is installed inside the guide rail 101 and is installed at a position corresponding to the driven gear 155 so as to follow the driven gear 155. ) And a transmission gear 158 installed between the slave gear 157 and the driven gear 155 and the subordinate gear 157 to move the moving cart 110 along the guide rail 101. The conveyance belt 158 is installed inside the guide rail 101, but has a circular structure having the same shape as the guide rail 101, and a gap between the guide rail 101 and the conveyance belt 158 is located. It is constant regardless.

In addition, the transfer belt 158 is formed on the surface in contact with the driven gear 155 and the subordinate gear 157, the irregularities 159 of a predetermined interval, the moving cart 110 is a predetermined fastening member 130 Is fastened to the concave-convex 159 of the conveying belt 158 is configured to move in accordance with the movement of the conveying belt 158.

In addition, the module 1 in the module jig 120 is provided with a cleaning means 190 which injects air to the module jig 120 or the module 1 seated on the module jig 120 adjacent to the guide rail 101. ) Is cleaned by spraying air to the top surface before it is seated or before the film is attached to the module (1).

That is, the guide rails 101 are installed via the front end of each film attaching machine 500, and the moving trolley 110 is mounted on the guide rails 101 at regular intervals, and according to a driving signal. Will move by.

The module jig 120 and the adsorption jig 520 of the film attaching machine 500 are formed in one set, but the module jig 120 has a dowel pin 125 formed therein, and the adsorption jig 520 has a dowel hole. Each of them is formed so that when the film is laminated, the alignment pins 125 of the module jig 120 and the alignment holes of the suction jig 520 are matched with each other. In addition, the module jig 120 has a slight play on the moving cart 110 when the alignment jig is inserted into the dowel pin 125 for accurate matching with the adsorption jig 520 considering the position error. It is fixed to the moving trolley 110 so as to be movable.

In addition, the module transfer device 100 is driven by a module detection sensor 170 such as a light emitting diode and a light receiving transistor that detects whether the module 1 is seated on the module jig 120 of the mobile truck 110 as an optical signal. It is installed on the gear 155 side and the slave gear 157 side, respectively, the first module detection sensor 171 installed on the driven gear 155 side is a sensor for detecting whether the module (1) is seated (loading) The second module detecting sensor 175 installed on the slave gear 157 is a sensor for detecting whether the module is unloaded or not.

In addition, the lower end of the driven gear 155 side is further provided with a bogie position detection sensor 180 for detecting the movement position of the movement bogie 110, the module jig 120 by the first module detection sensor 171 In the case where the module 1 is not seated on the module 1 or when the module is not unloaded to the module jig 120 by the second module sensor 175, the film attaching process is not performed. Is not located at the correct position, the control means 910 transmits an error signal to the control means 910 suspends the film attachment operation and generates an alarm sound through the alarm sound generating means 940. .

FIG. 7 is a flowchart illustrating the overall operation of FIG. 5 according to the present invention, in which each device of the module feeder 100, the film feeder 300, the film attacher 500, or the film alignment unit 700 is initialized. After that, the control means 910 is to control each operation while synchronizing each operation of the module transfer device 100, the film feeder 300 and the film attaching machine 500 (S10). That is, the module feeder 100, the film feeder 300 and the film attaching device 500 are actually synchronized with each other by the control means 910 in the initialization state at the same time, but for convenience of description the operation process in a time series flow As can be seen, it is obvious that the design of each device can be changed according to the design.

First, the transfer belt 158 is moved in accordance with the operation of the trolley transfer means 150 by the control means 910 in the module 1 (mold frame) seated on the mobile trolley 110 of the module transfer device 100. In accordance with the movement of the transport belt 158, the moving cart 110 fixedly coupled to the transport belt 158 moves on the guide rail 101 to designate the module 1 seated on the moving cart 110. When a signal indicating that the module 1 arrives at the designated position is detected from the balance position detecting sensor 180, the control means 910 stops the operation of the balance transfer means 150 to move the movement balance 110. The transfer is stopped (S20).

On the other hand, the control means 910 is driven by the take-out means 330 by rotating the first recovery roll 321 and the second recovery roll 325 by driving the roll rotation motor 320 of the film feeder 300 The film is physically separated from the film material 10 wound in the rolled state, that is, the first and the upper and lower surfaces of the film 11, 13, 15, 17, or 19 of the film material 10. The second protective film 10-1 and 10-2 are wound on the first and second recovery rolls 321 and 325, respectively, and the diffusion, scattering or light blocking film is separated and taken out by the take-out means 330 ( S30).

Subsequently, the control means 910 moves the adsorption pad 510 of the film attaching machine 500 to the x, y or z axis, moves to the position where the film is taken out, and picks up the taken out film by vacuum. (S40).

When the adsorbed film is different from the angle to be mounted on the module 1, for example, in the case of the second to fourth films 13, 15, and 17, the extraction angle of the film and the mounting on the module 1 may be adjusted. Since the angles are different from each other, in order to fix the angle by horizontally rotating the adsorption pad 510 to a predetermined angle in order to seat the film on the module 1 at the correct angle, the control means 910 is the adsorption of the film attacher 500. By removing the vacuum suction force applied to the pad 510 to seat the film on the alignment table 710 of the film alignment unit 700, the control means 910 is a jig driving means 770 of the film alignment unit 700 After driving the cylinder to move the alignment jig 750 to the alignment reference jig 730 side by pushing the side of the film to the right position and then the control means 910 operates the vacuum device 570 to the suction pad 510 ) Adsorb the film and move to z, y or x axis to the attachment position of the film Kige is (S50).

Then, when moving to the upper end of the module 1 of the moving cart 110, the film attaching machine 500 removes the vacuum suction force applied to the adsorption pad 510 to seat the adsorbed film on the module 1 to be laminated It becomes (S60).

When the film is not laminated after laminating the film on the module 1 (S70), the control means 910 controls the balance transfer means 150 to transfer the module 1 to a designated next position and The adsorption pad 510 of the film attacher 500 is moved to the film feeder 300 to continue the process of attaching the film to the next module 1 (S30 to S60).

After laminating all of the diffusion, scattering, and light blocking films 11 to 19 in one module 1 through the above process, finally, the laminated films are pressed and fixed to the module 1 by pressing. Accordingly, the film is attached and unloaded (S80, S90).

On the other hand, the detailed process is somewhat different depending on the type of film, the detailed process (S30) to take out by supplying the diffusion film (11 or 17) in Figure 7 is made as shown in Figure 8a, first the film material in the form of a scroll (10) ) Is wound on the material roll 110 and the first protective film 10-1 covered on the upper surface of the film 11 or 17 of the film material 10 is wound on the first recovery roll 321, and the lower surface of the film The covered second protective film 10-2 is wound around the second recovery roll 325.

In the initial state set as described above, the control means 910 of the controller 900 controls the roll rotation motor 320 of the first recovery roll 321 and the second recovery roll 325 to control the first and second recovery rolls. 321 and 325 are rotated by a predetermined length, respectively (S30-1), and the first protective film 10-1 of the film material 10 according to the rotation of the first and second recovery rolls 321 and 325. ) And the second protective film 10-2 are wound on the first and second recovery rolls 321 and 325, respectively, and the film 11 in the middle is automatically separated (S30-2). Herein, the pitch sensor 340 detects the moving distance of the film 11, and when the film moves by 1-pitch, the control means 910 stops driving the roll rotation motor 320.

Subsequently, as the film is separated, the film is automatically taken out to the film stand portion 400 installed adjacent to the film feeder 300 and automatically seated on the atmospheric jig 410 at the top of the film stand portion 400 (S30). -3).

In the embodiment, as shown in FIGS. 8B and 8C, the plurality of films 11-1 and 11-2 are attached to the film material 10 in a row, so that two sheets 11-1 and 11-2 are taken out when the film is taken out. This is taken out at the same time. Of course, the atmospheric jig 410 of the film standby part 400 is also composed of a plurality, the adsorption pad 510 of the film attaching machine 500 is adsorbed one by one (11-1 or 11-2) module 1 It is laminated to.

That is, when taking out the film once, the adsorption pad 510 alternately adsorbs one of the films 11-1 and 11-2 taken out on the left and right sides, and then doubles the serial process of laminating the module 1 onto the module 1. This is repeated, so that the film can be laminated to two different modules with one film extraction.

Thereafter, the extraction sensor 420 detects whether there is a film seated on the film standby part 400 and outputs the control means 910 to control the control means 910 when there is no film in the film standby part 400. The roll rotation motor 320 is controlled to rotate the first recovery roll 321 and the second recovery roll 325 by a predetermined length to take out the film to the atmospheric jig 410 in the same manner as described above (S30-). 4, S30-5).

In addition, in the case of the scattering film (13 or 15), not the diffusion film (11, 17) is the same as the extraction method of the diffusion film (11, 17) as shown in Figure 8a, only the adhesive form of the film is shown in Figures 9a and 9b It consists of That is, the plurality of films 13-1 and 13-2 are attached to the film material 10 in the shape of '◇', and two sheets 13-1 in the shape of '◇' are taken out when the film is taken out. , 13-2) is taken out at the same time. Of course, the atmospheric jig 410 of the film standby part 400 is also made of a plurality, the adsorption pad 510 of the film attaching machine 500 is adsorbed one by one (13-1 or 13-2) module 1 It is laminated to.

At the time of taking out the film, the adsorption pad 510 alternately absorbs one of the films 13-1 and 13-2 taken out on the left and right sides, and then repeats a series of processes of laminating the module 1 twice. Accordingly, it is possible to stack the film in two different modules in a single film taking out.

As described above, the diffusion and scattering films 11, 13, 15, and 17 are taken out into the film standby part 400, respectively, and then wait for the adsorption pad 510 of the film attaching machine 500.

In the detailed process (S40 to S60) of taking out the diffusion and scattering film to the film standby part 400 in FIG. 7 and adsorbing and attaching the film, the adsorption pad 510 of the film attaching machine 500 is initially positioned as shown in FIG. 10. After moving to the film waiting unit 400, the adsorption pad 510 of the film attaching machine 500 is moved horizontally in the x, y axis to move to the top of the film waiting unit 400 (S40-1) The adsorption pad 510 of the film attacher 500 is vertically lowered on the z-axis to move to the upper end of the film (S40-2), and the control means 910 controls the operation of the vacuum device 570 to adsorb the pad. The internal air passage of the 510 is made into a vacuum state to vacuum adsorb the film (S40-3).

When the film is adsorbed by the adsorption pad 510 as described above, the vacuum sensor 580 detects the film adsorption, and when the film is adsorbed, the control means 910 moves the adsorption pad 510 vertically and horizontally to align the film. When the film is vacuum-adsorbed in this process is the scattering film, the control means 910 controls the rotation driving means 560 of the adsorption pad 510 to level the adsorption pad 510. By rotating, the angle is adjusted to the correct position when the scattering film 13 or 15 is laminated (S40-4, S40-5). That is, by rotating the adsorption pad 510 the film taken out in the shape such as '◇' is rotated so that the film is located in the '□' shape. Of course, the rotation angle of the suction pad 510 is different according to the twisted angle of the film.

Of course, not only the scattering films 13 and 15, but also the diffuser films 11 and 17, in some cases, the adsorbed film 17 may be different from the angle to be mounted on the module 1. 4 In the case of the film 17, the extraction angle of the film and the angle to be mounted on the module 1 are different from each other, so that the scattering films 13 and 15 and the scattering film 13 and 15 may be used to seat the film 17 at the correct angle on the module 1. In the same manner, the suction pad 510 should be horizontally rotated at a predetermined angle to correct the angle.

Subsequently, the film attaching unit 500 moves the adsorbed film to the film alignment unit 700 fixedly installed at the front end of the module transporter 100 in the x, y or z axis, and at the top of the film alignment unit 700. Upon arrival, the vacuum adsorption force applied to the film is removed to seat the film on the alignment table 710 (S40-6). In this state, the control means 910 drives the cylinder which is the jig driving means 770 to move the alignment jig 750 of the '' character plane to the alignment reference jig 730 of the '' character plane shape. Accordingly, the film is aligned with the angle and position of the film slightly twisted according to the physical contact between the alignment jig 750 and the alignment reference jig 730 (S40-7).

Subsequently, the control means 910 makes the adsorption pad 510 of the film attacher 500 into a vacuum state, and vacuum-adsorbs the film again, and then horizontally moves the x, y, and z axes to move the adsorbed film 110. Will be carried to the top of (S50-1). When the module 1 is present at the upper end of the mobile trolley 110, the adsorption pad 510 is vertically lowered to move closer to the upper end of the module 1 so that the adsorption jig 520 and the mobile trolley of the adsorption pad 510 are moved. After the mutual matching (S50-2) using the alignment holes and the alignment pins 125 respectively attached to the module jig 120 of the 110, the control means 910 turns off the vacuum device 570 to increase the vacuum absorption force. After removal, the injector 590 is operated to inject air into the air passage of the adsorption pad 510 and the film is forcibly separated from the adsorption pad 510 to be laminated on the module 1 (S60).

On the other hand, the moving trolley 110 is mounted on the guide rail 101, the plurality of moving trolley 110 is mounted at regular intervals, that is, at intervals matching the interval of the multi-stage film attaching machine 500. The plurality of moving carts 110 are simultaneously shifted by the same distance and move through the front end of each film attaching machine 500. The moving trolley 110 is precisely controlled through a trolley transfer means 150 such as a rack and pinion installed on the guide rail 101, and separately moved through the balance position sensor 180 (not shown) When the position of the trolley 110 is detected and is out of the correct position, the alarm sound generating means 940 generates an alarm sound under the control of the control means 910.

In addition, the detailed process (S30) of supplying and adsorbing the light shielding film 19 is as shown in Figure 11a, in the case of the light shielding film 19, since the edge of the adhesive is formed, the process of supplying and taking out the film 19 It is somewhat different from diffused and scattered film.

First, the control means 910 of the controller 900 controls the roll rotation motor 320 of the first recovery roll 321 and the second recovery roll 325 to the first and second recovery rolls 321 and 325. It is rotated by a predetermined length (S30-21), respectively, as the first and second recovery rolls (321, 325) is rotated, the first protective film (10-1) and the second protective film (10-2) The light shielding film 19 is automatically separated by the take-out means 330 while being wound on the first and second recovery rolls 321 and 325 (S30-22).

The light blocking film 19 is separated and falls below the front end of the takeout means 330, and at the same time, the adsorption pad 510 of the film attaching machine 500 is moved to the top of the light blocking film 19 to vacuum the light blocking film 19. (S30-23), the edge of the light-shielding film 19 is composed of an adhesive tape so that only the central portion except the edge of the light-shielding film 19 is adsorbed to the adsorption pad 510.

Subsequently, the adsorbed light-shielding film 19 is aligned using the film alignment unit 700 (S30-24), and the movement path of the film attaching machine 500 thereafter is diffused and scattered films 11 to 17. In the case of the light-shielding film 19, only the light blocking film 19 is set in a line one by one, unlike the diffusion and scattering films, as shown in FIGS. 11B and 11C.

Looking at the overall operation of the film attachment system that operates as described above according to the embodiment as follows.

First, the guide rail 101 is installed on the work table, and about 12 to 14 moving trucks 110 are mounted on the guide rail 101 at which the module jig 120 is seated at a predetermined interval. The interval of the moving trolley 110 installed along the guide rail 101 is equal to the interval between each film attaching machine 500. In addition, although it is possible to install more than 14 moving carts 110 installed on the guide rails 101, there is a problem that the work table and the guide rails become larger, thereby increasing the size of the equipment.

Subsequently, when the control means 910 of the controller 900 receives an input signal that the module 1 is seated on the module jig 120 through the module detection sensor 171, the control means 910 moves the trolley 110. Drive the transfer motor 151, which is a stepping motor, which is a balance transfer means 150, which is driven to move by a predetermined distance, or the balance transfer until the next movement balance 110 is detected through the balance position sensor 180. After driving the means 150, when the next moving cart 110 is detected, the control means 910 stops the operation of the transfer motor 151. That is, the moving cart 110 is fixedly coupled to the transfer belt 158 through a predetermined fastening member 130, and the transfer belt 158 is gear-coupled to the driven gear 155 and the subordinate gear 157. The rotary shaft of the driven gear 155 is coupled to the drive gear 153, and the rotary shaft of the drive gear 153 is coupled to the transfer motor 151, so that the transfer motor 151 rotates. When the drive gear 153 rotates and the drive gear 153 rotates, the driven gear 155 rotates, and when the driven gear 155 rotates, the transfer belt 158 coupled with the driven gear 155 is It rotates along the driven gear 155, since the transfer belt 158 is also connected to the slave gear 157, the slave gear 157 also rotates.

The moving trolley 110 which is transferred through the above process is controlled to be moved by 1-pitch (pitch) of the driven gear 155 by the control means 910 and each moving trolley at a time by the balance position detecting sensor 180. It is controlled to move only by the interval between the 110.

In addition, the film is supplied and taken out through the film feeder 300 as shown in Figure 2, the control means 910 to the roll rotation motor 320 for rotating the first and second recovery rolls (321, 325) The film 11 is moved by giving the takeout signal to rotate the first and second recovery rolls 321 and 325. When the film is moved by 1-pitch (Pitch) and then detected by the pitch sensor 340, the control means 910 stops the operation of the roll rotation motor 320. At this time, the first protective film 10-1 is wound on the first recovery roll 321, the second protective film 10-2 is wound on the second recovery roll 325, the film 11 is It is separated from the first and second protective films 10-1 and 10-2 and is taken out to the film standby part 400.

Subsequently, the control means 910 receives the signal indicating that the film 11 is taken out from the take-out sensor 420 to the film standby part 400, and the x and y axes of driving the adsorption pad 510 of the film attacher 500. The horizontal driving means 530 is operated at a high speed to move to the position where the film is adsorbed.

After moving the adsorption pad 510 horizontally to stop the horizontal driving means 530 at a predetermined position, the control means 910 drives the vertical driving means 540, that is, the z-axis cylinder, and descends to the film standby part 400. In addition, the vacuum apparatus 570 is operated to suck the film taken out into the atmospheric jig 410 of the film standby part 400 by making the air passage of the suction pad 510 into a vacuum.

In addition, the control means 910 detects a predetermined amount of vacuum pressure detected when the film is adsorbed from the vacuum sensor 580 installed on the vacuum line, and when the predetermined vacuum pressure is detected from the vacuum sensor 580, It is determined that the adsorption means control unit 910 moves the adsorption pad 510 to the film attachment position again, if there is no film adsorption signal from the vacuum sensor 580, after raising the adsorption pad 510 again Perform the film pickup operation. Of course, the number of operation repetitions can be changed in the control program recorded in the memory 920.

If no film adsorption signal is received, the control means 910 generates an alarm sound using the alarm sound generating means 940 or outputs an error message to the monitor 950 and pauses the operation of the system.

In the case of adsorbing the film, the control means 910 controls the vertical driving means 540 (z-axis cylinder) of the film attaching machine 500 to raise the adsorption pad 510, and to adsorb the adsorbed film. Horizontally moving 510 moves to the film alignment unit 700.

If the adsorbed film is different from the angle to be mounted on the module 1 before aligning the adsorbed film, for example, in the case of the second to fourth films 13, 15, and 17, Since the angles to be mounted on the module 1 are different from each other, the suction pads are horizontally rotated at a predetermined angle to correct the angles so as to mount the film on the module at the correct angle.

Subsequently, when the adsorption pad 510 arrives at the upper end of the film alignment unit 700, the control unit 910 turns off the vacuum apparatus 570 to remove the vacuum adsorption force, thereby adsorbing the film to the film alignment unit 700. The table 510 is seated on the top. At this time, even if the vacuum pressure applied to the film is removed, the film may be attached to the adsorption pad 510 by static electricity, so that the control means 910 operates the injector 590 to the air passage of the adsorption pad 510. The film may be forced out of the adsorption pad 510 by spraying air.

Subsequently, the control means 910 controls the cylinder which is the driving means 770 of the alignment jig 750 of the film alignment part 700 to move the alignment jig 750 toward the alignment reference jig 730 to move the side surface of the film. By physically pushing, the film is aligned in the correct position.

Here, the control means 910 checks the vacuum sensor 580 once more to check whether the film is not separated from the adsorption jig 520 of the adsorption pad 510 after the alignment process.

Subsequently, the control means 910 moves the adsorption pad 510 of the film attacher 500 horizontally on the x and y axes to move to the position to attach the film.

The position of taking out the film, the position of adsorption, the position of alignment, and the position of attachment of the film are values that are input in advance through the training process, and it is natural that the film can be changed.

Subsequently, after moving the adsorption pad 510 of the film attacher 500 vertically and horizontally, by lowering the adsorption pad 510 again using the vertical driving means 540, the module jig of the moving trolley 110 is waiting ( The alignment pins 125 and the alignment holes respectively formed on the adsorption jig 520 of the 120 and the adsorption pad 510 are accurately matched. Since the module jig 120 is fixedly installed to flow with a slight play, the position jig 120 is accurately corrected in accordance with the alignment hole of the suction jig 520.

As described above, the control means 910 turns off the vacuum apparatus 570 and operates the injector 590 in the state in which the adsorption film approaches the module 1. By spraying, the film is laminated on the module 1 by eliminating the possibility that the film is still stuck to the adsorption jig 520 of the adsorption pad 510 by static electricity even when the vacuum apparatus 570 is turned off.

Subsequently, the control means 910 operates the vertical driving means 540 of the film attaching machine 500 to vertically raise the suction pad 510 to move to the initial position, and the module transporter 100 moves to the moving cart ( 110, that is, the module 1 is moved by one pitch. For example, the module 1 in which the first film 11 is stacked moves to the attachment position of the second film 13, and the newly transferred module 1 stops at the attachment position of the first film 11.

In addition, in the embodiment, the first and fourth films 11 and 17 are diffusion films, the second and third films 13 and 15 are scattering films, and the fifth film 19 is a light shielding film. The attachment process of the film 13, the third film 15, and the fourth film 17 is the same, and the first film 11 and the fifth film 19 are formed of the second to fourth films 13, 15, 17) and the adsorption process and take-out and vacuum adsorption process are slightly different.

Since the second scattering film 13, the third scattering film 15, and the fourth diffusion film 17 have the orientation of the film, the film material 10 adheres the film in a slightly twisted shape such as '◇'. Therefore, the adsorption pad 510 should be returned to have a shape such as '□' after the film is adsorbed. The adsorption pad 510 of the film attacher 500 is designed to rotate 360 °, and the position correction for rotating the film may be performed before the film is seated on the film alignment unit 700.

On the other hand, in the case of the fifth film 19, unlike the diffusion and scattering film 11 to 17 as a light shielding film, an adhesive is formed on the edge of the film. Therefore, taking out is not possible in the same manner as the diffusion and scattering films 11 to 17, so that the film must be separated from the protective film and the film must be adsorbed in a vacuum.

That is, the film separation and take-out time of the film feeder 300 and the speed and the synchronization of the adsorption pad 510 of the film attacher 500 must be exactly matched to take out the film and to adsorb it at the same time.

First, the adsorption pad 510 of the film attacher 500 is moved to a position where the film is adsorbed by driving the x, y or z axis by using the horizontal and vertical driving means 530 and 540.

Subsequently, the control means 910 lowers the suction pad 510 to move to the suction position, and also operates the vacuum apparatus 570 to make the air passage of the suction pad 510 into a vacuum state.

At the same time, the control means 910 drives the motor to rotate the first and second recovery rolls 321 and 325 of the film feeder 300 to move the film by 1-pitch, so that the light shielding film 19 rolls freely. Separated at 110 is taken out. At the same time, the adsorption pad 510 of the film attaching machine 500 moves at the same speed in the same direction and adsorbs the falling film with vacuum.

Subsequently, the control means 910 determines whether the light-shielding film 19 is adsorbed through the vacuum sensor 580 and repeats the process of supplying and taking out the film when the adsorption fails. The adsorption pad 510 of the attacher 500 is laminated to the module 1 through a process such as diffusion and scattering film.

When the first film to the fifth film (11 to 19) are all laminated to the module 1, the control means 910 controls the predetermined press 800 after moving the module 1 by 1-pitch. Press the top of the module 1 so that the light-shielding film does not fall to complete the attachment of the film. The press 800 is an up / down cylinder, and it is also possible to check whether the up / down through the sensor.

Therefore, in the present invention, the film for transferring the backlight evenly to the front of the liquid crystal panel is attached to the module through an automated process instead of manually, and the module is automatically transferred, thereby improving work efficiency and reducing work time. Productivity can be improved.

In addition, when the module is transported, it is transported along the guide rail through the moving cart, and the fastening of the moving cart is fixed through the unevenness of the conveying belt, so that the control of the feeding position of the module is accurate and whether the module is seated on the moving cart. The sensing sensor automatically detects the loading and unloading of the module, thereby increasing the reliability of the equipment.

Claims (12)

In a system in which a module is loaded to an attachment position when the diffusion, scattering or light blocking film for backlight is laminated and attached to a liquid crystal display module (mold frame): A guide rail installed at the top of the worktable to guide the module to the attachment position of the predetermined film; A moving trolley coupled to the guide rails at regular intervals and moving by a predetermined distance along the guide rails according to movement control; A module jig seated on an upper end of the mobile cart and directly mounted on the module and having a shape similar to that of the module; A balance moving means installed on the inside of the guide rail to move the moving cart by a predetermined distance along the guide rail; A module detecting sensor installed at one side of the guide rail to detect whether the module is seated on the module jig; And It is installed on one side of the guide rail balance position sensor for sensing the movement position of the guide rail; Module transport apparatus for the backlight of the liquid crystal panel, characterized in that consisting of. The method according to claim 1, The guide rail is a module transporting apparatus for a backlight of a liquid crystal panel, characterized in that the substantially elliptical circulation rail. The method according to claim 1, Backlight module transport apparatus for a liquid crystal panel, characterized in that the guide jaw is formed to protrude slightly in the width direction on the upper surface of the guide rail. The method according to claim 3, The moving cart may include: a plurality of guide wheels having guide grooves that are mated with and closely contact with guide jaws formed on the top surface of the guide rails; The jig support is fixedly installed on the top of the guide wheel, but the jig support is seated and fixed to the top of the module; Module transport apparatus for the backlight of the liquid crystal panel, characterized in that consisting of. The method according to claim 4, The module jig is a backlight module transport apparatus for a liquid crystal panel, characterized in that fixed to the jig support to be movable in a predetermined width. The method according to claim 4, The module jig, the mounting groove on which the module is seated; And a plurality of alignment pins formed on an outer side of the seating groove for matching with a corresponding member. The method according to claim 1, The cart moving means, a transfer motor; A drive gear formed on a rotation shaft of the transfer motor; A driven gear installed at one inner side of the guide rail to receive a rotational force of a drive gear through a belt and to rotate at a reduced speed; A slave gear installed inside the guide rail and installed at a position corresponding to the driven gear to interlock with the driven gear; And a conveyance belt installed on a rotating shaft between the driven gear and the subordinate gear to move the moving cart along the guide rails. The method according to claim 7, The transfer belt is installed on the inside of the guide rail module transport apparatus for the backlight of the liquid crystal panel, characterized in that the same circular structure as the guide rail. The method according to claim 7, The transfer belt is a module transfer device for the backlight of the liquid crystal panel, characterized in that irregularities of a predetermined interval are continuously formed on the surface in contact with the driven gear and the slave gear. The method according to claim 7, The moving cart is fastened to the conveyance belt through a predetermined fastening member, the module transport apparatus for the backlight of the liquid crystal panel, characterized in that configured to interlock in accordance with the movement of the conveyance belt. The method according to claim 1, And a cleaning means for cleaning by spraying air to the upper surface of the module jig before the module is seated in the module jig. The method according to claim 1, The module detection sensor, the first module detection sensor for detecting whether the module is seated on the module jig; And a second module detecting sensor detecting whether the module is unloaded in the module jig.