KR20060059420A - Backlight film sticking system of lcd panel - Google Patents

Abstract

The fabric film with functional film is fed in the state of maintaining tension by the tension guide part, and when the functional film taken out from the fabric film is absorbed, respectively, the module is laminated on the conveyor or the module transferred along the index. After correcting the X, Y, θ axis coordinate value of the functional film for the functional film to be laminated on the module,

The present invention is a film supply unit for feeding the raw film consisting of the upper and lower protective film to protect the functional film laminated on the liquid crystal panel module, the transfer means for horizontally moving the module jig in which the module is seated by a predetermined interval, and the raw film Z-axis align head part for stacking the functional film on the module by moving the seating part to control the vertical height and receiving the functional film taken out from In the film laminating system for a backlight of a liquid crystal panel comprising a control means for controlling the driving means and the alignment head portion,

When the functional film adsorbed by the above-mentioned adsorption port is seated on the module conveyed by the conveying means, the X, Y, θ axis coordinate values of the functional film for the module are detected by the image camera, and the calculated coordinate values are calculated. According to the position provided with a position correction means for moving the functional film to the correct position of the module.

Liquid Crystal Panel, Backlight Film, Module, Lamination

Description

Backlit film sticking system of LCD panel             

1 is an overall configuration diagram of a film stacking system for a backlight of a liquid crystal panel according to the present invention;

Figure 2 is a side view of the film supply unit for feeding the raw film according to the present invention,

3 is an enlarged view illustrating a state of use of the tension guide unit shown in FIG. 2;

4 is a block diagram showing the operation procedure of the film stacking system for backlight of the liquid crystal panel according to the present invention;

5 (a) is a view immediately before the functional film taken out from the film supply unit shown in FIG. 2 is supplied to the film standby;

Figure 5 (b) is a view showing the movement of the alignment head portion in the X, Y, Z, θ axial direction in order to adsorb the functional film supplied to the film standby portion,

5 (c) is a view showing the movement of the adsorption port adsorbing the functional film on the module jig by driving the alignment head portion,

Figure 6 (a, b) is a position to stack the functional film adsorbed by the aligning head portion shown in Figure 5 to the set position by detecting the X, Y, θ axis coordinate values of these positions when laminated to the module Drawing of the correction means,

7 is a schematic view of the conveyor shown in FIG. 1.

* Explanation of symbols used in the main part of the drawing

One; module

2; Functional film

3,4; Protective film

5; Fabric film

6; Module jig

7; conveyor

8; Adsorption port

9; roller

10; Video camera

11; Static electricity generating part

A; Film supply part

B; Means of transport

C; Align head part

D; Control

E; Tension guide part

F; Position correction means

According to the present invention, when a liquid crystal panel (LCD) for a mobile communication terminal is mounted on a module (referring to a mold frame), a plurality of functional films (diffusion, scattering and It relates to a film lamination system for a backlight of a liquid crystal panel that can automate a series of processes of laminating a film having a light shielding function to a module after taking out and adsorbing from a raw film.

More specifically, the raw film to which the functional film is attached is fed while maintaining tension by a control sensor mounted on the tension guide unit, and each of the functional films taken out of the raw film is absorbed by a conveyor or the like. In the film lamination system for the backlight of the liquid crystal panel, which allows the functional film to be accurately stacked on the module after the position correction of the X, Y, θ axis coordinate values of the module when laminating to the module transported along the index. It is about.

In general, a liquid crystal panel used as a display device of a mobile communication terminal forms a screen using a backlight, and includes a functional film at the bottom of a module inside which a liquid crystal panel is mounted so as to evenly diffuse and scatter the backlight to the front of the liquid crystal panel. That is, the films having the functions of diffusion, scattering and light shielding are sequentially stacked and used.

At this time, as the protective film is wrapped in the upper and lower portions of the functional film and rolled into a roll shape, in order to attach the functional film to the module, the upper protective film is peeled off and then the functional film is removed from the lower protective film one by one. Since it is detached and laminated to the module, the work time is excessively consumed, and workability and productivity are significantly reduced.

In addition, functional films are sensitive to the characteristics of the material, so when handling them manually, defects occur on the functional film, and depending on the operator's experience, the functional film is laminated to the module by hand according to the judgment and then moved to the next process. It is a problem that the cost is increased because the defect rate such as bending deformation or bending occurs excessively in the module or out of position in the module.

It is an object of the present invention, by adsorbing a plurality of functional film seated on the bottom of the liquid crystal panel for mobile communication terminal from the original film to automate the operation of laminating and attaching to the module transported by the conveyor or index drive, workability and An object of the present invention is to provide a film laminating system for a backlight of a liquid crystal panel capable of significantly improving productivity.

Another object of the present invention, the raw film with a functional film is fed in the state of maintaining the tension by a control sensor mounted on the tension guide portion, the functional film is adsorbed and laminated on a module transported along a conveyor or index It is to provide a film laminating system for a backlight of a liquid crystal panel to reduce the rate of defects remarkably by laminating the coordinates of the X, Y, θ axis coordinates of the functional film for the test module after position correction.

Another object of the present invention is to expose the static electricity to the functional film laminated to the module transported by section by conveyor or index drive to prevent the bending deformation of the functional film or to return the bending deformation to the initial state, and the functional film is mutually It is to provide a film laminating system for the backlight of the liquid crystal panel to be in close contact to prevent the separation of the functional film from the module during module transfer.

An object of the present invention described above, the film supply unit for feeding the raw film consisting of the upper and lower protective film to protect the functional film laminated on the liquid crystal panel module, and the transport means for horizontally moving the module jig in which the module is seated by a predetermined section And, the aligning head part for stacking the functional film in the module by moving the seating part to control the vertical height by receiving the functional film taken out of the original film and the suction port adsorbing the functional film in the vertical, horizontal and reversing drive In the film laminating system for a backlight of a liquid crystal panel having a film supply unit and a control unit for controlling the transfer means and the alignment head unit,

When the functional film adsorbed by the suction port is seated on the module conveyed by the conveying means, the X, Y, θ axis coordinate values of the functional film for the module are detected by the image camera and according to the calculation of the detected coordinate values It is achieved by providing a film stacking system for a backlight of a liquid crystal panel, characterized in that it comprises a position correction means for moving the functional film to the correct position of the module.

An object of the present invention described above, the film supply unit for feeding the raw film consisting of the upper and lower protective film to protect the functional film laminated on the liquid crystal panel module, and the transport means for horizontally moving the module jig in which the module is seated by a predetermined section And, the aligning head part for stacking the functional film in the module by moving the seating part to control the vertical height by receiving the functional film taken out of the original film and the suction port adsorbing the functional film in the vertical, horizontal and reversing drive In the film laminating system for a backlight of a liquid crystal panel having a film supply unit and a control unit for controlling the transfer means and the alignment head unit,

The functional film, which is installed in the alignment head part, is laminated to the module and exposed to the static electricity to prevent bending deformation of the functional film or to return the bending deformation to the initial state, and the plurality of functional films laminated inside the module are mutually attached. It is achieved by providing a film stacking system for the backlight of the liquid crystal panel characterized in that it comprises a static electricity generating unit to.

An object of the present invention described above, the film supply unit for feeding the raw film consisting of the upper and lower protective film to protect the functional film laminated on the liquid crystal panel module, and the transport means for horizontally moving the module jig in which the module is seated by a predetermined section And, the aligning head part for stacking the functional film in the module by moving the seating part to control the vertical height by receiving the functional film taken out of the original film and the suction port adsorbing the functional film in the vertical, horizontal and reversing drive In the film laminating system for a backlight of a liquid crystal panel having a film supply unit and a control unit for controlling the transfer means and the alignment head unit,

When the functional film adsorbed by the suction port is seated on the module conveyed by the conveying means, the X, Y, θ axis coordinate values of the functional film for the module are detected by the image camera and according to the calculation of the detected coordinate values Position correction means for moving the functional film to the correct position of the module,

The functional film, which is installed in the alignment head part, is laminated to the module and exposed to the static electricity to prevent bending deformation of the functional film or to return the bending deformation to the initial state, and the plurality of functional films laminated inside the module are mutually attached. It is achieved by providing a film stacking system for the backlight of the liquid crystal panel characterized in that it comprises a static electricity generating unit to.

According to a preferred embodiment, the tension guide is provided to be movable in the vertical direction, respectively, in the above-described movement paths of the fabric and the protective film, the tension guide for applying tension to the fabric and the protective film by a roller for pressing the fabric and the protective film in the vertical direction A part is provided.

The tension guide unit described above,

The holder is installed so as to move perpendicularly to the conveying direction of the fabric and the protective film and move up and down, and the roller is rotatably mounted, and the holder is raised by the tension of the fabric and the protective film and lowered by its own weight. It is provided with the upper and lower sensors for detecting the Shanghai copper.

The above conveying means,

A drive motor and a speed reducer for controlling the movement distance of each section of the conveyor, a drive gear mounted on the reducer output shaft, and a driven gear rotated opposite to the drive gear, and a conveyor installed to orbitally move the drive gear. And a link-type connecting piece mounted on the upper surface of the module jig at a predetermined interval, and a chain-shaped lever rotatably connecting the connecting piece so that the connecting piece can be bent at the direction change portion.

In addition, the air purifier is installed above the film attaching apparatus and sucks indoor air to remove foreign substances contained in the indoor air, and then discharges filtered air to circulate the same.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to describe in detail enough to enable those skilled in the art to easily practice the present invention. It is not intended that the technical spirit and scope of the invention be limited.

As shown in FIGS. 1 to 7, the backlight film stacking system of the liquid crystal panel according to the present invention includes a module (referred to as a mold frame) on which a liquid crystal panel for a mobile communication terminal is mounted, and a module. (1) Film supply unit for feeding the original film (5) consisting of the upper and lower protective film (3,4) to protect the functional film (2) having a diffusion, scattering or shading function for the backlight laminated on the bottom surface ( A) and a conveying means (B) for horizontally moving the module jig 6, on which the module 1 is seated, by a predetermined section by the conveyor 7 or an index drive (not shown).

In addition, the receiving unit 8 which receives the functional film 2 taken out from the above-described raw film 5 and controls the vertical height and the suction port 8 which adsorbs the functional film 2 is vertically, horizontally and directionally shifted. An align head portion C for moving and laminating the functional film 2 to the module 1, and a film supply portion A, a transfer means B, and an align head portion according to a user's input and a predetermined program. C) The control part D which controls a drive is provided.

In addition, it is installed in the movement path of the above-described raw film 5 and the protective film (3,4) and rotatable, respectively, and presses the raw film (5) and the protective film (3,4) in the vertical direction The tension guide portion E for applying tension to the original film 5 and the protective films 3 and 4 by the roller 9 and the functional film 2 adsorbed by the suction port 8 are conveyed to the conveyor 7. ) Or X, Y, θ axis coordinate values for the distance and angle of the corners of the module 1 and the functional film 2 by the image camera 10 when laminated to the module 1 transported according to the index drive. And position correction means (F) for moving the functional film (2) to the correct position of the module (1) in accordance with the calculation of the coordinate values detected by the control unit (D).

In addition, the functional film 2, which is installed in the above-described alignment head portion C, and laminated and transported in the module 1, is exposed to static electricity to prevent bending deformation of the functional film 2 or to initiate bending deformation. And a static electricity generating unit which prevents the functional film 2 from leaving the module 1 when the module 1 is transported by attaching the plurality of functional films 2 stacked inside the module 1 to each other. (11) is provided.

The above-mentioned tension guide part E is installed so as to be movable in the vertical direction while maintaining the direction perpendicular to the conveying direction of each of the original film 5 and the protective films 3 and 4, and the roller 9 to be rotatable. Upper and lower sensors 21 and 22 for detecting the shanghai movement of the fixed base 20 to be mounted and the fixed base 20 which is raised by the tension of each of the original film 5 and the protective films 3 and 4 and lowered by its own weight. ).

The above-mentioned conveying means B includes a drive motor 23 and a speed reducer 24 for controlling the moving distance for each section of the conveyor 7, and a drive gear 26 (sprocket) mounted and rotated on the speed reducer output shaft 25. Is used), a driven gear 27 (sprocket is used) rotatably installed opposite the drive gear 26 and a conveyor 7 installed to orbitally move the drive gear 26, and a module jig ( 6) is a link-type connecting piece 28 mounted on the upper surface with a predetermined interval, and a chain-shaped lever 29 for rotatably connecting the connecting piece 28 so that the connecting piece 28 can be bent at the direction change portion. It is provided.

In addition, the air is installed above the film lamination system and sucks indoor air by driving a suction fan (not shown) to remove contaminated air, dust, and the like contained in the indoor air, and then discharges and circulates filtered air. A purifier 30 is provided.

Hereinafter, a use example of a film stacking system for a backlight of a liquid crystal panel according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 4, functional films 2 having diffusion, scattering, or shading functions are provided at the bottom of the module 1 in order to spread and scatter the backlight of the mobile communication terminal evenly over the LCD screen. After sequentially stacking and attaching, the liquid crystal panel is mounted on the upper surface of the module 1.

As shown in Figures 2 and 3, to rotate the roller (R) wound around the roll-shaped fabric film (5) wrapped in the above-described functional film (2) with the upper and lower protective films (3,4). Accordingly, the functional film 2 separated from the upper and lower protective films 3 and 4 attached to the upper and lower surfaces of the fabric film 5 to be relaxed (moved by one pitch) from the roller R is It is taken out to the film standby part G which is elevated according to the driving of the air cylinder A1 installed on one side of the film supply part A (see S100).

At this time, the upper protective film 3 covered on the upper surface of the functional film 2 described above is roller R1 (drive motor) for recovering the upper protective film 3 via several feeding rollers r1 and r2. Rotated by M1) and recovered, and at the same time, the lower protective film 4 covered on the lower surface of the functional film 2 passes through several feeding rollers r3, r4, and r5 in turn. 4) It is collected by winding on the roller R2 (rotated by the drive motor M2) which collect | recovers.

Therefore, since the upper and lower protective films 3 and 4 are separated from the original film 5, the functional film 2 is automatically separated from the original film 5.

On the other hand, as shown in Figure 3, the roller of the tension guide portion (E) which are respectively installed to be movable in the vertical direction on the movement path of the above-described raw film (5) and the upper and lower protective films (3,4) ( 9) by pressing the original film (5) and the upper and lower protective films (3,4) in the vertical direction during movement to maintain the tension, the original film (5) is set due to the driving motor (M1, M2) drive It feeds precisely by the length (1 pitch P) and guides the separation of the upper and lower protective films 3 and 4 and the functional film 2 at the same time.

That is, when the original film 5 is released from the roller R and the protective films 3 and 4 are wound on the rollers R1 and R2, the original film 5 and the upper and lower protective films 3 and 4 are used. By the tension of the holder (20), each roller 9 is rotatably fixed, the support 20 is raised. At this time, since the detection signals respectively detecting the rising of the fixed base 20 by the detection of the upper sensor 21 is applied to the controller D, the driving of the driving motors M1 and M2 is stopped.

On the other hand, the fixture 20 is lowered by the weight of the original film 5 and the fixture 20. At this time, since the detection signal which detects the lowering of the holder 20 by the detection of the lower sensor 22 is applied to the controller D, the driving motors M1 and M2 are driven to form the original film 5 from the roller 9. ) To relax.

On the other hand, as shown in Fig. 5 (a, b, c), the detection signal by the take-out sensor is not applied to the control unit (D) for the functional film (2), which is waiting in the above-described film standby unit (G) Therefore, the alignment head portion C mounted with the suction port 8 connected to the vacuum apparatus through the hose is moved in the X and Y axis directions (see S200).

That is, the adsorption port 8 is aligned with the alignment head part so that the functional film 2 in the air can be adsorbed to the film standby part G by the vacuum pressure formed in the hose of the suction port 8 connected to the vacuum apparatus. Drive down the Z-axis by driving the first drive motor (31) (C) (see S300).

The adsorption port 8 which adsorbs the functional film 2 by the vacuum pressure formed in the air passage rises in the Z-axis direction by driving the first driving motor 31 of the alignment head portion C, and then the adsorption port 8 ) Is mounted on the module jig 6 moved by one pitch P by the conveyor 7 or the index drive by driving the second and third drive motors 32, 33, and 34 of the alignment head part C. It is moved toward the module 1 in the X, Y, and θ directions (see S400).

As shown in FIG. 6 (a, b), the functional film 2 moved toward the module 1 by the adsorption port 8 of the alignment head portion C is located at the correct position inside the module 1. Positioned by the position correcting means (F) in the X, Y, θ axial direction so that it can be accurately seated.

In detail, the functional film 2 adsorbed to the above-mentioned adsorption port 8 is mounted to the module jig 6 of the conveyor 7 or the index (not shown) by the alignment head part C. When moving above the module 1 (in this case, the functional film (2) is moved only a predetermined distance in accordance with the alignment head portion (C)), the image camera 10 installed below the module jig (6) Is applied to the control unit (D).

The controller D calculates a distance and an angle value for the corner of the functional film 2 with respect to the module 1 in accordance with an image signal applied from the image camera 10, and aligns the head according to the calculated value. By moving the adsorption port 8 of C) by a predetermined distance in the X, Y, and θ directions, the functional film 2 adsorbed on the adsorption port 8 can be laminated on the center of the module 1. (See S600).

As shown in FIG. 1, the functional film 2 laminated on the above-described module 1, that is, a film having a diffusion, scattering, or shading function is sequentially stacked. At this time, the number of the film to be stacked on the module 1 is installed in a direction perpendicular to the conveyor (7) moved by one pitch (P) to correspond to the number of films to be stacked in the plurality of types to supply the functional film (2) to the module (1) Since the driving of the film supply unit A is the same, the description thereof will be omitted.

Meanwhile, as shown in FIGS. 1 and 6, a module mounted on a module jig 6 which is adsorbed by the suction hole 8 and moved by one pitch by driving the conveyor 7 or an index (not shown) ( 1) When stacking the functional film (2) to the module (1) to move to prevent the warpage deformation of the functional film (2) or return the warpage to the initial state, when transporting the module (1) along the conveyor (7) The functional film 2 laminated in the module 1 can be prevented from being separated from the module 1.

That is, as the functional film 2 laminated and transferred to the module 1 is exposed to the static electricity generated from the static electricity generating unit 11 installed at one side of the alignment head part C, the functional film 2 is exposed. ) Prevents warpage deformation and also attaches a plurality of functional films 2 stacked on the module 1 to each other, thereby transferring the functional film from the module 1 to the module 1 along the conveyor 7. 2) can be prevented from being separated (see S500).

On the other hand, when the functional film (2) having shading, scattering and shading functions are laminated in the above-described module (1), respectively, in order, the module (1) is moved forward one pitch by the conveyor (7) or the index drive. As a result of adsorbing the upper end of the module 1 mounted on the module jig 6, moving away from the conveyor 7 and moving to a subsequent process, the lamination of the functional film 2 is completed (see S700).

On the other hand, as shown in Figure 2, after suctioning the indoor air according to the driving of the suction fan (not shown) of the air purifier 30 installed above the film lamination system, contaminated air, dust contained in the indoor air As the filtered air is discharged after removing the foreign matters, the dust and the like contained in the air may be prevented from being deposited on the functional film 2 seated on the module 1.

As described above, the film lamination system for a backlight of the liquid crystal panel according to the present invention has the following advantages.

By automating the task of stacking and attaching a plurality of functional films that are seated on the bottom of the liquid crystal panel for mobile communication terminals from the raw film to the modules transported by conveyor or index drive, the workability and productivity are greatly improved. To be competitive.

In addition, since the original film with the functional film is fed while the tension guide part maintains the tension, the functional film is easily adsorbed, and the functional film is absorbed to the module when it is laminated to the module transported by the conveyor or the index drive. By stacking the coordinates of the X, Y, θ axis coordinates of the functional film after the position correction can significantly reduce the failure rate can be improved yield.

In addition, by exposing static electricity to the functional film laminated to the module transported by section by conveyor or index to prevent the bending deformation of the functional film or to return the bending deformation to the initial state, and the plurality of functional films in close contact with each other during module transfer It is possible to prevent the release of the functional film from the module.

Claims (7)

A film supply unit for feeding a fabric film composed of upper and lower protective films protecting the functional film laminated on the liquid crystal panel module, a transporting means for horizontally moving the module jig on which the module is seated by a predetermined interval along a conveyor, and the fabric An alignment head part for stacking the functional film on the module by moving the seating part which receives the functional film taken out of the film and controlling the vertical height and the adsorption port which adsorbs the functional film in vertical, horizontal and reversing driving directions, and the film In the film lamination system for a backlight of a liquid crystal panel having a supply part, a conveying means, and a control part for controlling the alignment head part driving: When the functional film adsorbed by the suction port is seated on the module conveyed by the conveying means, X, Y, θ axis coordinate values of the functional film for the module are detected by an image camera, and the calculated coordinate values are calculated. And a position correction means for moving the functional film to the correct position of the module according to the present invention. A film supply unit for feeding a raw film made of upper and lower protective films protecting the functional film laminated on the liquid crystal panel module, a transfer means for horizontally moving the module jig on which the module is seated by a predetermined interval along the conveyor, and the raw material An alignment head part for stacking the functional film on the module by moving the seating part which receives the functional film taken out of the film and controlling the vertical height and the adsorption port which adsorbs the functional film in vertical, horizontal and reversing driving directions, and the film In the film lamination system for a backlight of a liquid crystal panel having a supply part, a conveying means, and a control part for controlling the alignment head part driving: The functional film is installed in the alignment head portion, and the functional film laminated and transported in the module is exposed to static electricity to prevent the bending deformation of the functional film or return the bending deformation to the initial state, a plurality of functional films laminated inside the module Film stacking system for a backlight of the liquid crystal panel, characterized in that it comprises a static electricity generating unit for attaching to each other. A film supply unit for feeding a fabric film composed of upper and lower protective films protecting the functional film laminated on the liquid crystal panel module, a transporting means for horizontally moving the module jig on which the module is seated by a predetermined interval along a conveyor, and the fabric An alignment head part for stacking the functional film on the module by moving the seating part which receives the functional film taken out of the film and controlling the vertical height and the adsorption port which adsorbs the functional film in vertical, horizontal and reversing driving directions, and the film In the film lamination system for a backlight of a liquid crystal panel having a supply part, a conveying means, and a control part for controlling the alignment head part driving: When the functional film adsorbed by the suction port is seated on the module conveyed by the conveying means, X, Y, θ axis coordinate values of the functional film for the module are detected by an image camera, and the calculated coordinate values are calculated. Position correction means for moving the functional film to the correct position of the module according to; And The functional film is installed in the alignment head portion, and the functional film laminated and transported in the module is exposed to static electricity to prevent the bending deformation of the functional film or return the bending deformation to the initial state, a plurality of functional films laminated inside the module Film stacking system for a backlight of the liquid crystal panel, characterized in that it comprises a static electricity generating unit for attaching to each other. The method of claim 1, wherein the fabric and the protective film is installed on the movement path of the fabric and the protective film so as to be movable in the vertical direction, respectively, by the roller for pressing the fabric and the protective film in the vertical direction; And a tension guide part for imparting tension to the protective film. The method of claim 4, wherein the tension guide unit; A holder for maintaining the direction perpendicular to the conveying direction of each of the fabric and the protective film and being movable in the vertical direction, the roller being rotatably mounted; And And a top and bottom sensors for detecting shanghai movement of the stator, which is raised by the tension of each of the fabric and the protective film and is lowered by its own weight. The method according to any one of claims 1 to 3, wherein the conveying means; A drive motor and a speed reducer for controlling a moving distance for each section of the conveyor; A drive gear mounted to the reducer output shaft and rotating; A link-type connecting piece which is rotatably disposed on the opposite side of the drive gear and a conveyor installed to orbitally move the drive gear, wherein the module jig is mounted on an upper surface while maintaining a predetermined interval; And And a chain-shaped lever for rotatably connecting the connecting piece so that the connecting piece can be bent at the redirection portion. The air purifier according to any one of claims 1 to 3, further comprising an air purifier installed above the film attaching apparatus and suctioning the indoor air to remove foreign substances contained in the indoor air, and then circulating the discharged filtered air. Backlit film lamination system for liquid crystal panel.

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