TW200932373A - Liquid crystal dispensing apparatus, and device and method for supplying liquid crystal - Google Patents

Abstract

A liquid crystal dispensing apparatus includes a stage having a substrate placed thereon, dispenser heads each having a syringe and a nozzle to dispense or apply liquid crystal onto the substrate, a head support arranged over the stage to support the dispenser heads, liquid crystal supply units for supplying liquid crystal to be dispensed or applied onto the substrate, to the syringe of each dispenser head, a supply line connected to each liquid crystal supply unit to supply liquid crystal, and a receiving line coupled to the syringe of each dispenser head. By moving the head support and the dispenser head from a position on the stage toward the supply line, the receiving line is connected with the supply line, and liquid crystal can be filled from each liquid crystal supply unit into the syringe of each dispenser head.

Description

200932373 IX. Description of the Invention: The present invention relates to a coating apparatus for coating a liquid crystal to a substrate of a flat panel display device or the like, and more particularly to a liquid crystal coating apparatus, and supplying liquid crystal to mounting The device and method of the syringe of the head. [Prior Art] As is well known, flat displays of liquid crystal displays (LCDs), plasma display panels (pdp), organic light emitting diodes (〇LEDs), and the like have been developed and used. In these flat displays, the liquid crystal display is a display device that supplies the light signals according to the image > signal to the liquid crystal cells arranged in an array, and adjusts the light transmittance of the liquid crystal cells to display the desired image. In the liquid crystal display, the liquid crystal layer is formed between the TFT substrate and the color filter substrate, and the liquid crystal layer can determine whether or not the light is transmitted when the electric signal is applied. The sealant pattern is used to enclose the liquid crystal layer. In one method of manufacturing a liquid crystal display, the TFT substrate and the color filter substrate are separately fabricated, and a sealant pattern is formed on either of the two substrates. The liquid crystal layer is disposed in a dot pattern inside the sealant pattern, and then The two substrates are joined to each other. At this time, when the two substrates are bonded to each other, the liquid crystal droplets form a liquid crystal layer between the substrates. 5 200932373 The manufacturing equipment is configured as a production line, and the 'coating liquid crystal to the substrate and forming the dense order' is performed by a coater as a coating liquid crystal or a sealant, Φ will be described below as a coater. The structure of the liquid crystal coating device. The f-crystal coating apparatus has a coating head ό for storing liquid crystals = discharge and coating of liquid crystal to the substrate, and discharge and base: the nozzle can be supplied from the syringe with a small cylindrical structure. The liquid crystal changer ejector stored in the ejector is supplied with liquid crystal to the nozzle after the operation. 'It should be more.' When replacing the new injection H, 'new miscellaneous nozzles should be connected to each other' and the bubbles will be connected when connected. =; The nozzle passes out the precise amount of liquid crystal. Moreover, because the note is more = new, it adds to the tedious work of the operator. Furthermore, since the liquid crystal coating process should be wiped out on the second day of the month (4), the workability and productivity are low. 6 200932373 Of course, the liquid crystal can supply H to such a disposable napkin from a separate liquid crystal supply tank which is not mounted on the coating head, and it is complicated to form a connection between the liquid crystal supply tank and the discharger. In particular, when you want to change the type of liquid crystal, 'not only 装t is installed in the liquid crystal coating I, but also connected to the liquid crystal supply _ pipe fittings should be replaced, no need to completely remove the liquid crystal from the pipeline, and because of the replacement time It is very long, making usability poor and significantly reducing manufacturing efficiency. SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a liquid crystal coating apparatus and an apparatus and method for supplying liquid crystal, which are constructed to allow convenient filling of liquid crystal to a syringe without replacement The syringe can be used to prevent air bubbles from entering when the syringe is replaced, thereby improving workability and productivity. Another object of the present invention is to provide a liquid crystal coating device and a device and method for supplying liquid crystal, which are constructed to allow liquid crystal to be filled from a clean booth to a syringe, so that the liquid crystal coating environment in the clean booth can be maintained clean. Improve the reliability of the liquid crystal coating process. Still another object of the present invention is to provide a liquid crystal coating apparatus and a device and method for liquid crystal, which are capable of connecting injection|| and supply lines for supplying liquid crystal to a syringe to each other when liquid crystal is applied to the syringe only, so that liquid crystal is connected It can be conveniently filled without changing the supply line, and the process efficiency is improved by 200932373. Still another object of the present invention is to provide an apparatus and method for liquid crystal coating and liquid crystal supply, which is constructed to allow a supply line to be opened only when a receiving line and a supply line are connected to each other to prevent entry of foreign matter such as particles. A syringe, thereby improving the reliability of the liquid crystal coating operation. In order to achieve the above object, according to an aspect of the invention, a liquid crystal coating apparatus comprising: a platform on which a substrate is placed; a coating head each having a syringe and a nozzle to coat or apply liquid crystal on the substrate; a liquid crystal supply unit for supporting a coating head head; a liquid crystal supply unit for supplying a liquid crystal to be coated or applied to the substrate to the respective coating head; a liquid crystal supply unit for supplying the liquid crystal supply line; and coupling each The receiving line of the coating head injector, wherein the receiving line is connected to the supply line by the position from the position on the platform toward the supply line miscellaneous head and the coating head, and the liquid crystal can be filled from each liquid crystal supply unit to each coating head. Projector 0 According to another aspect of the invention, the platform, the coating head, and the head support are placed in a clean booth to be separated from the outside, and the chip supply unit is located outside the cleansing number. According to aspects of the present invention, the supply line and the connection are connected to the clean booth. According to another aspect of the present invention, the foreign matter entry cover is prevented from being installed at the connection portion between the supply line and the receiving line, respectively, and foreign matter is not allowed to enter when the supply line and the receiving line are connected or disconnected from each other. In order to achieve the above object, a liquid crystal supply device for a liquid crystal coating apparatus according to an aspect of the invention includes: a coating head for coating or applying liquid crystal on a substrate; and a liquid crystal to be coated or applied to the substrate to be coated a liquid crystal supply unit of the cloth head; a liquid crystal supply unit is connected to supply a supply line of the liquid crystal; a receiving line of the coating head is connected, and when it is connected with the supply line, the liquid crystal is supplied by the self-liquid BB; and the supply line is installed; At least one connection portion with the receiving line prevents foreign matter from entering the cover, and is opened when the supply line and the receiving line are connected to each other to prevent entry of foreign matter. According to another aspect of the invention, the coating head includes a nozzle for discharging liquid crystal to the substrate, and a syringe for connecting the receiving line to store the liquid crystal and transferring the liquid crystal to the nozzle. According to another aspect of the invention, the liquid crystal supply unit includes a liquid crystal cell for storing the liquid crystal, and a pressurizing portion for pressurizing the liquid crystal stored in the liquid crystal cell and supplying the pressurized liquid crystal through the supply line. According to another aspect of the present invention, when the supply line is horizontally moved, the supply 9 200932373 line and the receiving line are connected to each other, and wherein one end of the supply line is inserted into the entrance of the receiving line. According to another aspect of the present invention, the foreign matter entering cover (supply side cover) is prevented from being installed on the supply line, and the upper open/closed body and the lower open/closed body are closed to the end of the supply line, and when the supply line is connected to the receiving line At the time, the upper/close body and the lower open/close body are widened to open the supply line. According to another aspect of the present invention, the supply side cover is constructed to be opened or closed by the relationship between the displacement of the upper opening/closing body and the lower opening/closing body movement and the cover contour provided to the fastening structure. According to another aspect of the invention, the return spring is provided between the supply side cover and the supply line to return to the home position after the material supply line has been withdrawn from the supply side. Eight" 7 (4) other - aspects 'avoiding foreign objects f into the cover (receiving push-to-receive line' construction can be formed by attaching to the supply side cover according to another aspect of the invention to form an elongated shape. The push rod contact cam is provided on the receiving side according to another aspect of the present invention. The return spring is provided between the receiving side cover and the 200932373 receiving line to allow the application of the elastic force to the direction relative to the push rod. According to another aspect of the present invention, the supply The side cover and the receiving side cover are configured to be automatically opened and closed by a motor and an electromagnetic actuator. To achieve the above object, a method for supplying liquid crystal to a liquid crystal coating device according to an aspect of the invention includes: Step, moving the coating head to the liquid crystal filling position to fill the liquid crystal to the coating head injector; the second step, after the first step is performed, connecting the receiving line of the coupling syringe and the supply of the coupling liquid crystal supply unit to each other a third step, after the second step is performed, filling the liquid crystal from the liquid crystal supply unit to the injector; and the fourth step 'after the third step is performed, releasing the supply reel Receiving the connection and moving the coating head to the liquid crystal coating position. According to another aspect of the present invention, in the second step and the third step, when the supply line and the receiving line are connected to each other, the opening is turned on or off for opening. 0. The line and the receiving line prevent foreign matter from entering the cover. According to another aspect of the invention, in the first step, the amount of liquid crystal stored in the syringe is measured, and when the amount of liquid crystal is less than a predetermined amount, the coating head is filled to the liquid crystal. According to still another aspect of the present invention, when it is necessary to change the type of liquid crystal used to fill the syringe, after the liquid crystal supply unit is replaced, the first step to the fourth step of 200932373 are sequentially performed. [Embodiment] The embodiments of the present invention will be described in detail in the preferred embodiments and the accompanying drawings. In this case, a liquid crystal coating apparatus according to the present invention can be applied and used in the manufacture of a flat display such as a liquid crystal display, a semiconductor, etc. The present invention will be described below. A liquid crystal coating apparatus for use in a process for manufacturing a flat display such as a liquid crystal display. FIG. 1 to FIG. 5 are schematic views of a liquid crystal coating apparatus according to an embodiment of the present invention, wherein FIG. 1 is a perspective view. 2 and 3 are side views, and Figs. 4 and 5 are plan views. Fig. 6 is an enlarged side elevational view showing the main part of the connecting mechanism according to the present invention. Referring to the drawings, the liquid crystal coating apparatus according to the present invention has cleanliness. The kiosk 10 is used as a liquid crystal coating processing chamber. In the clean booth, a frame 11, a platform 13, a head support 15, and a coating head 20 are provided. The liquid crystal supply unit 3 for supplying liquid crystal is disposed in the clean booth 1 12 200932373 Specifically, the liquid crystal supply unit 30 and the coating head 20 are connected to each other by being configured to allow constituent elements of the liquid crystal to be supplied. Hereinafter, constituent elements of the liquid crystal coating apparatus according to the present invention will be described.

The frame U_ is in the form of a red piece, such as the platform 13, placed in the kiosk 10, the head support 15, and the coating head 2''. The platform 13 serves as a constituent element for the glass s (hereinafter referred to as "substrate") to be applied or coated with liquid crystal. The platform 13 preferably moves in the X, Y, and Z axis directions. The head support 15 serves as a component for supporting and moving the thin 2 (). As shown, the head support 15 can have a gantry shape = a head support # 15 frame that constitutes an trajectory 17 that can be moved along at least one of the axes on the frame 11. The coating head 20 is provided with a plurality of, and is mounted on the head support 15 to be aligned directly. The liquid crystal is applied or applied to the nozzle 23 of the substrate S (see Fig. 6): == to '. The coating head is movable. In particular, the coating head 20 may be provided with a syringe 22, each of which may supply and store a predetermined amount of liquid crystal from the liquid crystal supply unit 30 at 13 200932373. The syringe is connected to the nozzle 23 which discharges the liquid crystal or the like to the substrate s, and is available for liquid crystal or the like. Here, the syringe 22 and the nozzle 23 can be constructed to be directly connected to each other or connected by wires as needed. The syringe 22 can be coupled to a pressurizing device such that nitrogen or the like can be introduced into the syringe 22 to permit supply of liquid crystal to the nozzle 23 at a predetermined pressure.

The frame 11, the platform 13, the head support 15, and the cleaning head 1G in which the coating head 20 is placed may be provided with an estimating unit 18 for measuring the amount of liquid crystal discharged through the nozzle 23. Of course, other well-known components or units required for coating or applying liquid crystal to the substrate S may also be provided. Thereafter, the U.S. liquid crystal supply unit is placed outside the clean booth, and the connection mechanism for supplying the liquid crystal to the coating head 20 is supplied from the liquid crystal supply unit 30. The liquid crystal supply unit 30 is composed of a liquid crystal cell 31 and a pressurizing unit 33. The ytterbium is stored in the liquid crystal cell 31 and is pressurized and supplied to the liquid crystal cell 31. The liquid, the main, and the main 037 include a container in which the material to be supplied to the coating head 2 is stored. The liquid (4) 31 records a significant sophomore: the 'connecting mechanism for storing a large amount of liquid crystal TM 14 200932373 and connecting the liquid crystal tank 31 and the injector 22 of the coating head 20 to each other is constructed such that the liquid crystal cell 31 and the syringe 22 can be consumed by each other. The coupling is uncoupled, and can be connected to each other only when the syringe 22 needs to be filled with liquid crystals', so that the liquid crystal can be supplied from the liquid crystal cell 31 to the syringe 22. . φ Each connecting mechanism is constituted by the supply line 41, the receiving line 45, and the connecting portions 41a and 45a (see Fig. 6). The 'supply line 41 is connected to the liquid crystal cell 31 to supply liquid crystal, and the receiving line 45 is connected to the syringe 22 of the coating head 20. The liquid crystal is supplied through the supply line 41, and the connection portions 41a and 45a are provided at the ends of the supply line 41 and the connection line 45, and are connected to each other when the liquid crystal needs to be supplied. In the connection mechanism, when the syringe 22 needs to be filled with the liquid crystal, the hammer support 15 and the coating head 2 are moved toward the liquid crystal supply tank 31 and the supply line ,, as shown in FIGS. 3 and 5, and the receiving line 45. And the supply lines 41 are automatically connected to each other so that the liquid crystal can be supplied from the supply line 41 to the receiving line 45. The supply line 41 and the receiving line 45 can be connected to each other by other methods. The method includes a first method in which the head support 15 and the coating head 20 are moved while the supply line 41 is fixedly positioned, and then the supply line 41 and the receiving and springs 45 are connected to each other. In the second method, the head support is combined. The coating head moves closer to the supply line 41, and then the supply line 41 moves to the receiving line 45 15 200932373 j. In the third method, the 'supply line 41 and the receiving line 45 move to be transported to each other. In the present embodiment, a second method will be explained with reference to Fig. 6, in which the head support member 15 and the coating head 20 are moved closer to the supply line 4, and then the supply wire 41 is moved to be connected to the receiving line 45.车 Che Yijia, the supply line 41 can be constructed and disassembled from the liquid crystal slot 31. Therefore, when the liquid crystal stored in the liquid crystal cell 31 is used up, or when it is necessary to replace the liquid crystal of the same type, it is only necessary to replace the new crystal cell 31. Of course, it is also conceivable that the liquid crystal cell 31 and the supply line 41 are integrally formed with each other and can be replaced together. The filter element 35 can be mounted to the supply line 41, and the liquid crystal supplied through the supply line 41 can be purified by the filter element 35. u

_ Guangyu 41 extends from the clean booth to the clean booth 10 from outside. Specifically, the part of the supply line 41 where the connection °卩41a is located can be moved forward and backward. In order to achieve this (4), the expansion-contraction portion 43 is axially extended to the middle portion f of the wire 41 so that the expansion-contraction portion 43 can be extended or contracted. The line driving portion 42 is provided at a specific position of the wall of the material 10 to allow the connecting portion 41a of the supply line 41 to move back and forth. The expansion and contraction portion 43 of the 'supply line 41' can be constructed in various conventional manners, for example, a bellows, or a double-layered structure in which the inner and outer tubes are combined. The line driving portion 42 can also be constructed in any conventional manner as long as the connecting portion 41a of the supply line 41 can move linearly. For example, the wire drive portion 42 can be constructed to be mounted on the supply line by means of a pinion that is rotated by the motor so that the supply line 41 can be moved by actuation of the motor. At this time, of course, the guide is provided for the guide 41 to move linearly. 芎1 Du Fu ❹

Preferably, the connection (10) 45 is constructed to directly connect the syringe 22 mounted to the applicator head 20. In the case where the coating head 20 is not equipped with the syringe 22, the receiving line 45 may be constructed to be connected to a reservoir or discharge portion for supplying liquid crystal to the nozzle 23. Preferably, the connecting portions 41a and 45a for connecting the supply line 41 and the receiving line 45 to each other are substantially positioned at the clean booth 1〇μ, and are formed at the connecting portion 41a of the supply line 41 to be inserted into the τν receiving line 45. A connection can be formed in the state of the connecting portion 45a. In detail, preferably, the connecting portions 41a and 45a are constructed to constitute a supply line "insert and connect the receiving line 45 in the horizontal direction, and the receiving line 45 is attached to the upper end of the syringe 22 and substantially erect in the vertical direction, and is connected The portion 45a is positioned in front of the upper end of the syringe 22. Specifically, foreign matter entering the cover 5 is prevented from being attached to the connecting portions 200932373 41a and 45a', and when the supply line 41 and the receiving line 45 are connected to each other and disconnected, foreign matter is prevented from entering the connecting portions 41a and 45a. Preferably, the foreign matter entering cover 50 is constituted by the supply side cover 51 and the receiving side cover 55, so that the connecting portion 4ia of the supply line 41 and the connecting portion 45a of the receiving line 45 can be respectively provided by the supply side cover 51 and the receiving side cover 55 Open and close. The specific structure of the foreign matter entering the cover 5〇 will be described later with reference to Figs. 8 to 13 .

The number of the liquid crystal cells 31 and the connecting means can be appropriately determined according to the number of the coating heads 20, and a liquid crystal cell and a connecting mechanism for supplying liquid crystals to the two coating heads 20 are exemplified. As far as the point is concerned, it can be considered that the coating head 2G or the supply line 41 can be moved horizontally, so that one supply line 41 can be any one of the two receiving lines 45. Although the pseudo-Weijing = clean booth 1 is described in the present embodiment. And the gorge is limited to these two. In this case, the above can be combined with the foregoing; and the liquid crystal coating apparatus is constructed as described above. The method of supplying liquid crystal according to the present invention using the 18 200932373 apparatus will be explained. Fig. 7 is a flow chart showing a liquid crystal supply method of a liquid crystal coating apparatus according to still another embodiment of the present invention. The method will be described based on Fig. 7 with respect to Figs. 1 to 6'. ❹ First, the amount of liquid crystal stored in the syringe 22 attached to the coating head 20 is measured. ©i: f The amount of liquid crystal in the main emitter 22 can be implemented by using various mouths and methods, for example, by using a sensor mounted inside or outside the injection of $22, or by measuring the weight of the injection H22. . ~ As a result of measuring the amount of liquid crystal stored in the syringe 22, if the amount of liquid crystal stored in the Saki H 22 is sufficient, the fresh table 13, the head support 15, and the coating head 20 are normally operated to perform discharge or The procedure of applying the coating liquid Ba to the substrate S loaded on the platform 13 (see FIG. 2 and FIG. 2), if it is determined that the amount of liquid crystal stored in the syringe 22 is insufficient or has been used up, the liquid crystal coating process is interrupted, and the head support member is interrupted. 15 moves to the liquid crystal filling position (see Figs. 3 and 5). 19 200932373 The head support member 15 moves toward the position where the measuring unit 18 that senses the liquid crystal discharge (coating) state is located. When the coating head 20 and the receiving line 45 borrow The head support 15 is moved to the liquid crystal filling position, and the supply line 41 is moved forward to be connected to the receiving line 45. At this time, the covers 51 and 55 closing the connection portions 41a and 45a of the supply line 41 and the receiving line 45 are opened to supply The line 41 and the receiving line 45 are connected to each other. Then, when the liquid crystal stored in the liquid crystal cell 31 is supplied into the syringe 22 through the supply line 41 and the receiving line 45 connected to each other, the liquid crystal can be filled into the syringe 22. ' Once the liquid crystal is filled Syringe 22, supply line 41 After that, it is moved and disconnected from the receiving line 45. At the same time, the connecting portions 41a and 45a of the supply line 41 and the receiving line are closed by the individual covers 51 and 55. The head #m includes the coating head 20 and the crucible filled with the liquid crystal injector 22. f moves to the platform 13 on which the substrate s is placed, as shown in FIG. 2 and FIG. 4, and the liquid crystal coating process can be performed. Meanwhile, when the liquid crystal stored in the liquid crystal cell 31 is completely used up, or another liquid crystal is desired _ When other _ substrate S is placed, it can be replaced only by the (4) slot 31 placed outside the clean booth. The woven 20 200932373 The connection structure between the line 41 and the receiving line 45 fills another liquid crystal to the syringe 22, and the liquid crystal coating can be performed. The cloth program will be described later with reference to Figs. 8 to 13 to avoid the specific structure of the foreign matter entering the cover 50, wherein the foreign matter is prevented from entering the cover 5 and the connection portions 41a and 45a of the supply line 41 and the receiving line 45 are provided. The foreign matter entry cover 50 is constituted by a supply side cover 51 provided to the connection portion 41a of the supply line 41, and a reception side cover 55 provided at the connection portion 45a of the reception line 45. The individual covers 51 and 55 are constructed as supply lines 41 and receiving line 45 are closed when they are not connected to each other The ends of the line 41 and the receiving line 45 are opened, and the ends of the supply line μ and the receiving line 45 are opened when the supply line 41 and the receiving line 45 are connected to each other. The structure for opening and closing the individual covers 51 and 55 will be described below. The supply side cover 51 is constructed such that when the supply line 41 moves forward and the connection portion 41a of the supply line 41 is positioned at the supply cover 51, the opening/closing body 52 of the supply side cover 5 is widened to make the connection portion of the supply line 41 4ia is opened. In the state of "the opening/closing body mu and the lower opening/closing body 52L are in contact with each other on the supply side 盍 51", if the supply line 41 moves forward, 21 200932373 is opened/closed 52U and under The opening/closing body 52L moves together with the supply line 41. Then, when the supply line 41 is moved by a predetermined distance, the upper opening/closing body 52u and the lower opening/closing body 52L are widened by the guide frame 6 (see Fig. 11) disposed on both sides of the supply line 41. As the upper opening/closing body 52U and the lower opening/closing body 52L are completely widened, the opening/closing body 52 is stopped in contact with the connecting portion 45a of the receiving wire 45, and the supply line 41 is continuously moved to be inserted into the connection of the receiving wire 45. Part 45a. The means for widening the upper opening/closing body 52U and the lower opening/closing body 52L can be realized by the cam guide member's use of the cam profile to cause relative displacement by the movement of the opening/closing body 52. In this connection, as shown in Fig. 11, the guide frame 60 is positioned on either side of the opening/closing body 52 so that it can be supported by the fastening structure 65 placed in the cleaning booth 10. The guide frame 60 is preferably placed on both sides of the opening/closing body 52. Two pairs of cam slots 62 are defined for each of the guide frames 60 to guide the movement of the opening/closing body 52. Each of the pair of upper and lower cam slots 62 is defined to initially extend in parallel with each other to allow the opening/closing body 52 to be in a proper state, and the collision # extends beyond the predetermined distance to be separated from each other' to open the material/M52 to each other. The projections 52a are formed on both side surfaces of the opening/closing body 52, and are inserted through the 22 200932373 cam slot 62. The projection 52a preferably includes a roller and is rotatable along the cam slot 62. Preferably, as shown, the two pairs of cam slots 62 are defined on each of the guide frames 60' on each side of the opening/closing body 52 such that the upper opening/closing body 52U and the lower opening/closing body 52L are stably along The cam slot 62 moves. Further, the two pairs of projections 52a are opened and inserted into the respective side surfaces of the opening/closing body 52 through the cam slot 62. Preferably, the return spring 53 is disposed between the supply line 41 and the supply side cover 51, and when the supply line 41 and the supply side cover 51 are disconnected from the receiving line 45 and the receiving side cover 55, the original return to the original position. A telescopic member (not shown) may be coupled between the upper opening/closing body 52u and the lower opening/closing body 52L such that the upper opening/closing body 52U and the lower opening/closing body 52L may be closed when the opening/closing body 52 is widened. The space between. Similarly, the telescopic member may be coupled between the rear end of the opening/closing body 52 and a portion of the supply line 41 to replace the return spring 53 shown in Fig. 6. In this case, the telescoping member may include a ripple spring that produces a resilient force when stretched. In addition to the use of the cam profile opening/closing structure, the opening/closing structure of the supply side cover can be constructed in various ways depending on the application or coating condition. In one method, the 'on/off structure' can be constructed to open the supply side cover 51 by the relative movement between the line 41 and the opening/23 200932373. In other words, when the supply line 41 and the opening/closing body 52 move forward together, the opening/closing contact is stopped from the line 45, whereby the supply line 41 can be continuously moved to open the opening/closing body 52, and then can be inserted and received. The entrance to line 45. In another method, instead of the mechanical on/off mode, the on/off structure

It can be constructed such that the opening/closing body 52 can be automatically opened and closed by a driving force generated by an electric motor or the like. The receiving side cover 55 is basically constructed like a cover, and is opened and closed at the upper end of the receiving line 45. Of course, the hinge % is provided at the rear end of the receiving side cover 55 so that the receiving side cover 55 can be rotated about the chain % to open. In the optimum on/off configuration, the movement of the receiving side cover 55 is opened and closed. In other words, the # side cover 5 is supplied; the direction is moved, and the pusher of the supply woven 51 is fastened to open the receiving woven 55. Therefore, as shown in Figs. 8 to 10, the opening/closing structure can construct the elongated push rod 54 to be fastened to the supply side cover 51, and the corresponding cam is attached to the receiving side cover 55 to be engaged with the turn 54 and pushed. As a result, when the f 51 is moved forward, the receiving side cover 55 can be automatically opened by the push rod 54: moving. Destroying 24 individual 匕 provides two corresponding cams 59 on the respective sides of the receiving side cover 55 to provide _ push rods 54 on the supply side cover 5, each end of the push #54 is formed with a slanted or curved surface and corresponding Smooth contact between the cams 59 is ensured. The side cymbal is formed to be two from the receiving side cover 55. The dog: ground ' is easily visible from the circle, and each cam 59 St is a gentle curve and then formed on the receiving side opened in this manner after passing through the preselected position. In the cover 55, when the cover 55 is disconnected, it is allowed to receive the fine two. In this configuration, the plate-shaped resilience bullets 57 can be used to receive money on the receiving side, or, although not shown in the age, a conventional reversing spring mounted on the chain 56 can be used.

200932373 Referring to Fig. 10, when the supply side cover 51 is widened, the push rod 54 can be raised by the supply side cover 51. In this regard, in order to accommodate the displacement of the push rod %: The hinge hole can be defined as a slot shape extending in the vertical direction. #然, the structure of the corresponding cam 59 can be modified so that the push rod 54 can be unimpededly improved: In addition to the above structure for opening and closing the receiving side cover 55 through mechanical contact, 'the following structure can be considered', the sense of the towel is sensed by the sensor The supply line 25 200932373 41 forward movement 'The receiving side cover 55 is then automatically opened and closed about the hinge 56 by a drive such as a drive motor. Figure 12 is a side cross-sectional view of a foreign material entering the cover in accordance with a variation of the present invention. In this variation, when the relative movement of the two wires 41 and 45 is sensed, the electric motor 71 and the electromagnetic actuator 75 can be actuated to automatically open and close the connecting portions 41a and 45a of the individual wires 41 and 45. That is, as shown, in the supply line 41, the connecting portion 4ia can be opened by rotating the opening/closing plate covering the connecting portion 4ia by the electric motor 71, and in the receiving line 45, the connecting portion 45a can utilize the electromagnetic actuator 75 is opened by sliding/moving the opening/closing plate 77 of the connecting portion 41a. Although it is considered that the slide type switch structure using the electromagnetic actuator 75 can be used for the supply line 41, the electric motor 71 can be used to rotate the structure receiving line 45. $1 lion good open

According to another variation of the present invention, the foreign matter is prevented from entering/screening. This change can be constructed to resemble a fueling rush. The receiving line 41 can be pushed open to provide a connection to the lower portion of the connector. Knives, night, and can be minimized outside 26 200932373 to material entry. Furthermore, in the case where the connection portion 41a of the supply line 41 is constructed to be opened and closed as described above, the opening/closing plate 83 can be provided at the connection portion 41a of the supply line to enable the opening/closing plate 83 to be connected to the receiving line The connecting portion 45a of 45 is opened and opened. Preferably, an elastic member is provided to the support box 81 of the holder 83 to urge the opening/closing plate (10) toward the closed position. Further, an electromagnetic actuator can be used in place of the support box 81 to open and close the opening/closing plate 83. Reference numeral 87 denotes a return spring that forces the opening/closing plate 83 to return to the original position. ..., the effects of the liquid crystal coating apparatus and the apparatus for supplying liquid crystals and the method according to the present invention will be described below. In the present invention, since the liquid crystal can be filled to the injection H in a state where the syringe is mounted on the coating head without replacing the syringe, the problem caused by the bubble entering the replacement/main pupil can be solved. Furthermore, since the liquid crystal and the crucible (4) can be filled in a convenient manner, workability and productivity can be improved. Furthermore, in the present invention, when the liquid crystal is filled into the liquid crystal of the syringe for 27 200932373, when the vehicle element is placed outside the clean booth, the liquid crystal coating in the clean booth can be made because the operator is not required to enter the replacement syringe. The environment is kept clean and the reliability of the liquid crystal coating process is improved. /, . Furthermore, it is rich in the present, because it can fill the liquid crystal in a state where the supply side of the syringe side and the supply of the liquid crystal to the syringe are automatically connected to each other when only the crystal is filled into the syringe, and the liquid crystal can be improved. Cheng Xiang notes that 'liquid crystal lion fill wire needs to change the supply line, and the rapid supply of liquid crystal can improve process efficiency. Furthermore, in the present invention, since the foreign matter entering the cover is prevented from being mounted between the syringe side receiving line and the supply line, respectively, when the wires are not connected to each other, substances such as particles can be prevented from entering the wires, and the improvement can be improved. The reliability of the LCD finishing process. Furthermore, in the present invention, in the case of replacing the type of liquid crystal used, since it is sufficient to replace the liquid crystal cell for storing the liquid crystal outside the clean booth, the cleaning operation of the connection line can be minimized, and the replacement of the liquid crystal type can be improved. The workability of the time. While the invention has been described with respect to the preferred embodiments of the present invention, it will be understood that various modifications, additions and substitutions may be made without departing from the spirit and scope of the invention. 28 200932373 By way of example, although the present invention is directed to a device for supplying a liquid crystal to a liquid crystal coating apparatus, it is understood that the present invention can be applied to a device or method for supplying a glue or the like (for example, a sealant) in the same manner. . BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and other advantages of the present invention will become more apparent from Figure 2 and Figure 3 are schematic views of a liquid crystal coating apparatus according to the present invention, wherein Figure 2 is a side view showing a liquid crystal coating position, and Figure 3 is a side view showing a liquid crystal filling position; Figure 4 and Figure 5 is a schematic view of a liquid crystal coating apparatus according to the present invention, wherein FIG. 4 is a plan view showing a liquid crystal coating position, and FIG. 5 is a plan view showing a liquid crystal filling position; FIG. 6 is a liquid crystal coating apparatus according to another embodiment of the present invention. FIG. 7 is a flow chart of a liquid crystal coating device crystal supply method according to still another embodiment of the present invention; FIG. 8 to FIG. 11 are diagrams showing an external use for a liquid crystal supply device according to the present invention. A schematic view of the material entering the cover, wherein FIG. 8 is a side view showing a state before the supply line and the receiving line are connected to each other, and FIG. 9 is a view showing that the supply line and the receiving line are connected to each other. FIG. 1 is a side view showing a state in which a supply line and a receiving line are connected to each other, and FIG. 29 200932373 is a side view showing a structure for opening and closing a supply line; FIG. 12 is a view showing a change according to the present invention. A side cross-sectional view of foreign matter entering the cover is avoided; and Figure 13 is a side cross-sectional view of the foreign matter entering the cover in accordance with another variation of the present invention.

[Main component symbol description] 10 Clean booth 11 Frame 13 Platform 15 Head support 17 Track 18 Estimation unit 20 Coating head 22 Syringe 23 Nozzle 30 Liquid crystal supply unit μ Liquid crystal tank 33 Pressurizing unit 35 Filter element 41 Supply line 4la Connection ^ Line drive part 43 expansion section 45 receiving line 200932373

45a Connecting portion 50 Avoiding foreign matter entering the cover 51 Supply side cover 52 Opening/closing body 52a Projection 52U Upper opening/closing body 52L Lower opening/closing body 53 Returning spring 54 Push rod 55 Receiving side cover 56 Hinge 57 Return spring 59 cam 60 guide frame 62 cam slot 65 fastening structure 71 electric motor 73 opening/closing plate 75 electromagnetic actuator 77 opening/closing plate 81 support box 83 opening/closing plate 85 cover 87 returning spring S substrate

Claims (1)

200932373 X. Patent application scope: 1. A liquid crystal coating device comprising: a platform on which a substrate is placed; a coating head each having a syringe and a nozzle for coating or applying liquid crystal on the substrate; a support member, a liquid BB supply unit for supplying the liquid crystal to be coated or applied to the substrate to the respective coating head; a supply line connecting the liquid crystal supply units to supply the liquid crystal; And a receiving line coupled to the injector of each coating head, wherein the receiving line is connected to the supply line by moving the head support member and the coating head from a position on the platform toward the supply line, And the liquid crystal can be filled from each liquid crystal supply unit to the injection head of each coating head 2. As requested! The liquid crystal coating device, the platform, the coating, and the head support are placed in a clean booth to read the outside separation and the liquid crystal supply unit is located outside the clean booth. 3. The liquid crystal coating apparatus according to any one of claims 1 to 3, wherein 32 200932373 prevents foreign matter from entering the cover and is respectively mounted on the connection portion between the supply line and the receiving line, when When the supply line and the receiving line are connected or disconnected from each other, foreign matter is not allowed to enter. 5. A liquid crystal supply device for a liquid crystal coating device, comprising: a coating head for coating or applying liquid crystal on a substrate; a liquid crystal supply early element 'supplying liquid crystal to be coated or applied to the substrate a coating head; a supply line connecting the liquid crystal supply unit to supply liquid crystal; a receiving line connecting the coating head, when connected to the supply line, supplying liquid crystal from the liquid crystal supply unit; and avoiding foreign matter The access cover is installed at at least one connection portion of the supply line and the receiving line, and is opened when the supply line and the receiving line are connected to each other to prevent entry of foreign matter. 6. The liquid crystal supply device according to claim 5, wherein the coating head comprises a liquid crystal discharge nozzle to one of the substrates, and a connection line for storing the liquid crystal and transferring the liquid crystal to one of the nozzles. 7. The liquid crystal supply device according to claim 5, wherein the liquid crystal supply unit comprises a liquid crystal cell for storing liquid crystal, and pressurizing a liquid crystal stored in the liquid crystal cell and supplying a pressurized liquid crystal through the supply line. The liquid crystal supply device of claim 5, wherein the supply line and the receiving line are connected to each other when the supply line is horizontally moved, and wherein one end of the supply line is inserted into one of the receiving lines . 9. The liquid crystal supply device according to claim 5, wherein the foreign matter ingress prevention cover (supply side cover) is mounted on the supply line, and the upper open/close body and the lower open/close body are closed to close the supply line. In the state of the portion, when the φ line is connected to the receiving line, the upper opening/closing body and the lower opening/closing body are widened to open the supply line. 10. The liquid crystal supply device according to claim 9, wherein the supply side cover is configured to be displaced by the upper opening/closing body and the lower opening/closing body movement and provided between a cover contour of a fastening structure The relationship to open or close. 11. The liquid crystal supply device according to claim 9, wherein a return spring is provided between the supply side cover and the supply line to allow the supply line to protrude from the supply side cover and return to its original position. . 12. The liquid crystal supply device according to any one of claims 5 to 11, wherein the 5 hai avoid foreign matter entry cover (receiving side cover) is mounted on the receiving line, and is configured to be fastened to the supply side cover One putter to open. 13. The liquid crystal supply device of claim 12, wherein one of the cams in contact with the push rod is elongated in the receiving side cover. The liquid crystal supply device of claim 12, wherein a return spring is provided between the receiving side cover and the receiving line to allow an elastic force to be applied in a direction relative to the push rod. The liquid crystal supply device according to any one of claims 5 to 8, wherein the supply side cover and the receiving side cover are constructed to be automatically opened and closed by a motor and a parametric electromagnetic actuator. 16. A method of supplying liquid crystal to a liquid crystal coating apparatus, comprising: a first step of moving a coating head to a liquid crystal filling position to fill a liquid crystal to a syringe of the coating head; a second step, After the first step is performed, the receiving line of one of the injectors is coupled to one of the receiving lines of the liquid crystal supply unit; and a third step, after the second step is performed, filling the liquid crystal from the liquid crystal supply unit to the a syringe; and a fourth step, after the third step is performed, releasing the supply line from the receiving connection and moving the coating head to a liquid crystal coating position. 17. The method of claim 16, wherein in the second step and the third step, the supply line and the receiving line are opened or closed only when the 5 hai supply line and the receiving line are connected to each other. Avoid foreign matter entering the cover. The method of claim 16 or 17, wherein in the first step, the amount of liquid crystal stored in one of the injectors is measured, and when the amount of liquid crystal is less than a predetermined value, the coating head moves Go to the liquid crystal filling position. 19. The method of claim 16 or 17, wherein when the type of liquid crystal used needs to be changed to fill the syringe, the first step to the fourth step are sequentially performed after the liquid crystal supply unit is replaced. 36