CN102085507B - To the method for liquid crystal coating supply liquid crystal - Google Patents
To the method for liquid crystal coating supply liquid crystal Download PDFInfo
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- CN102085507B CN102085507B CN201010571981.7A CN201010571981A CN102085507B CN 102085507 B CN102085507 B CN 102085507B CN 201010571981 A CN201010571981 A CN 201010571981A CN 102085507 B CN102085507 B CN 102085507B
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Abstract
The present invention discloses a kind of method to liquid crystal coating supply liquid crystal. Described method comprises: (a) substrate of uncoated liquid crystal is placed on saddle; (b) via the coating head unit of the liquid crystal bottle with internal reservoir liquid crystal, the liquid crystal of scheduled volume is applied on substrate; And (c) change the substrate of the liquid crystal that has been coated with scheduled volume with the substrate of uncoated liquid crystal. Here, repeat (a) to (c), and at (a) or (c) to liquid crystal bottle supply liquid crystal.
Description
Technical field
The present invention relates to the method for liquid crystal coating supply liquid crystal.
Background technology
Fig. 1 is the side view of schematically illustrated liquid crystal coating and liquid crystal supply unit.
As shown in Figure 1, liquid crystal coating is installed, and installation subsequently purifies canopy B and covers liquid crystal coating.Liquid crystal supply cellular installation is purifying the outside of canopy B.
Liquid crystal coating comprises: main frame 100; Saddle 200, it is arranged on main frame 100; TheOne guide unit G1, its mode with the both sides that are positioned at saddle 200 connects with main frame 100; CoatingHead unit support frame 400, it connects with the first guide unit G1; The first driver element (not shown),Its effect is mobile coating head unit support frame 400; The second guide unit G2, it is arranged on dispense tipOn unit supports framework 400; Multiple coating head units 500, it connects with the second guide unit G2;And the second driver element (not shown), its effect is mobile coating head unit 500.
Each coating head unit 500 comprises the supporting component 510 being connected with the second guide unit G2. LiquidBrilliant bottle insert member 520 connects with supporting component 510. Liquid crystal bottle 530 inserts liquid crystal bottle insert member 520.End socket 540 connects with the bottleneck of liquid crystal bottle 530, so that the entrance of liquid crystal bottle 530 is sealed. Nozzle unit550 are arranged on the bottom of supporting component 510. In addition, nozzle connecting pipe part 560 is to pass end socket 540Mode be connected with end socket 540, thus by the liquid crystal supply in liquid crystal bottle 530 to nozzle unit 550.In end socket 540, there is injection channel H. Nozzle unit 550 comprises nozzle 551. The side of liquid crystal bottle 530The upper and lower on surface is respectively arranged with sensor (not shown).
Liquid crystal supply unit comprises: liquid crystal tank 620, and it is arranged on base plate 610; Pressure feeding unit630, it is exerted pressure to liquid crystal tank 620; Tube connector 640, it is by liquid crystal tank 620 and pressure supply listUnit 630 connects; Injection unit of liquid crystal 700, its mode with break-through sidewall connects with the sidewall that purifies canopy BConnect; Pipe fitting 650, it is connected liquid crystal tank 620 with injection unit of liquid crystal 700; And valve 800, itsBe arranged on pipe fitting 650. Valve 800 is controlled liquid crystal flowing to pipe fitting 650.
Injection unit of liquid crystal 700 comprises the substructure member 720 connecting with the wall that purifies canopy B. Actuator 730Connect with substructure member 720. Guide rail (not shown) connects with actuator 730. Sliding component 740 withSlidably mode connects with guide rail, and is connected with actuator 730. Keeper 750 regularly with slipMember 740 connects. Pipe fitting stay pipe 710 connects with it in the mode through keeper 750. Pipe fitting 650An end to be connected with pipe fitting stay pipe 710 through the mode of pipe fitting stay pipe 710, and pipe fitting 650The other end be connected with liquid crystal tank 620.
The operation of liquid crystal coating and liquid crystal supply unit is as follows.
Substrate is placed on the saddle 200 of liquid crystal coating. The first driver element and the second driver element willCoating head unit 500 moves to liquid crystal coating position from initial position.
The first driver element and the second driver element move coating head unit 500 according to default data.When coating head unit 500 moves, the liquid crystal of scheduled volume is via the spray of each coating head unit 500Mouth 551 and be applied to substrate. Substrate is divided into multiple unit panels, and the liquid crystal of scheduled volume is applied to eachUnit panel. Be applied to the total amount and the scheduled volume of liquid crystal that is applied to substrate of the liquid crystal of unit panelEquate.
After the liquid crystal of scheduled volume is applied to substrate, the first driver element and the second driver element will be coated withCloth head unit 500 moves to initial position.
The substrate being positioned on saddle 200 is replaced with to new substrate.
After new substrate is placed on saddle 200, the first driver element and the second driver element will be coated withHead unit 500 moves to liquid crystal coating position, with to base plate coating liquid crystal.
The first driver element and the second driver element move coating head unit 500 according to default data.When coating head unit 500 moves, the liquid crystal of scheduled volume is via the spray of each coating head unit 500Mouth 551 and be applied to substrate.
After the liquid crystal of scheduled volume is applied to substrate, coating head unit 500 moves to initial position. WillThe substrate being positioned on saddle 200 is replaced with new substrate.
Repeat more than process time, the liquid crystal of scheduled volume is applied to multiple substrates.
At liquid crystal coating to each base plate coating after the liquid crystal of scheduled volume, measure via dispense tip listThe amount of liquid crystal that the nozzle 551 of unit 500 is coated with. Generally speaking, to 20 substrates or 25 substratesIn each base plate coating after the liquid crystal of scheduled volume, measure the nozzle 551 via coating head unit 500The amount of liquid crystal being coated with. Utilization is installed on the measuring unit 110 of liquid crystal coating and measures described amount of liquid crystal.Move to behind the position that measuring unit 110 is installed coating head unit 500 at each coating head unit 500Nozzle 551 to measuring unit 110 coating of liquid crystalline, thereby measure amount of liquid crystal.
If the measured amount of liquid crystal of measuring unit 110 in reference range, coating head unit 500Move to liquid crystal coating position, so that liquid crystal is applied to substrate. And if the measured liquid of measuring unit 110Brilliant amount exceeds reference range, adjusts discharge and makes to be coated with via the nozzle 551 of coating head unit 500The amount of liquid crystal of cloth is in reference range, and subsequently, coating head unit 500 moves to liquid crystal coating position.
In addition, if the amount of liquid crystal holding in liquid crystal bottle 530 is reduced to certain altitude, be arranged on liquid crystalDisplay unit on coating machine can show alarm. If demonstrate alarm, stop via coating head unit 500Nozzle 551 to the process of base plate coating liquid crystal.
Subsequently, coating head unit 500 is moved to the position of supply liquid crystal.
In the time that coating head unit 500 moves to liquid crystal supply position, liquid crystal supply unit is to coating head unit 500Liquid crystal bottle 530 supply liquid crystal.
The following process of liquid crystal supply unit by using is supplied liquid crystal to the liquid crystal bottle 530 of coating head unit 500.
First, actuator 730 moves forward sliding component 740. Along with sliding component 740 moves forward,The keeper 750 connecting with sliding component 740, the pipe fitting stay pipe 710 connecting with keeper 750,And pipe fitting 650 moves forward, make pipe fitting 650 insert the injection channel of the end socket 540 of liquid crystal bottle 530H。
Open valve 800, and pressure feeding unit 630 exerts pressure to the inside of liquid crystal tank 620, makeBe stored in liquid crystal in liquid crystal tank 620 pipe fitting 650 of flowing through. By means of the inside that is applied to liquid crystal tank 620Pressure, be stored in liquid crystal in the liquid crystal tank 620 injection channel H via pipe fitting 650 and end socket 540Be supplied to liquid crystal bottle 530.
By liquid crystal supply during to the predetermined altitude of liquid crystal bottle 530, pressure feeding unit 630 stops to liquidBrilliant tank 620 is exerted pressure, and shut off valve 800, thereby stops being stored in liquid crystal via pipe fitting 650Liquid crystal supply in tank 620 is to liquid crystal bottle 530.
Actuator 730 is mobile sliding component 740 backward. Along with sliding component 740 moves backward, with cunningThe keeper 750 that moving member 740 connects, the pipe fitting stay pipe 710 connecting with keeper 750 andPipe fitting 650 moves backward, and pipe fitting 650 is moved from the injection channel H of the end socket 540 of liquid crystal bottle 530Open.
Supply after liquid crystal coating head unit 500 at the liquid crystal bottle 530 completing to coating head unit 500Move to liquid crystal coating position.
Like this, be reduced to certain height if be supplied to the amount of liquid crystal of the liquid crystal bottle 530 of coating head unit 500Degree, coating head unit 500 moves to liquid crystal supply position, to supply liquid crystal to coating head unit 500.
But, there is following point by the liquid crystal coating of aforesaid operations and liquid crystal supply unit. , existAfter the amount of liquid crystal that the liquid crystal bottle 530 of coating head unit 500 holds is reduced to certain altitude, liquid crystal supplyLiquid crystal will be supplied to liquid crystal bottle 530 in unit. Like this, if at coating head unit 500 according to defaultData mobile and via the nozzle 551 of coating head unit 500 liquid to the liquid crystal of base plate coating scheduled volume timeBrilliant bottle 530 amount of liquid crystal that hold are reduced to certain altitude, and the nozzle 551 of coating head unit 500 can stopOnly, to base plate coating liquid crystal, coating head unit 500 moves to liquid crystal supply position subsequently, to dispense tip listUnit's 500 supply liquid crystal. Therefore, owing to being to liquid crystal in the process that the liquid crystal of scheduled volume is applied to substrateBottle 530 supply liquid crystal, thereby it is long that the liquid crystal of scheduled volume is applied to the spent time of substrate.
Summary of the invention
Therefore, the present invention is directed to the above problem producing in the prior art, and the object of the invention isA kind of method to liquid crystal coating supply liquid crystal is provided, and described method is exempted to base plate coating liquid crystalIn process, stop necessity of coating of liquid crystalline in order to supply liquid crystal.
In order to realize above object, the invention provides a kind of method to liquid crystal coating supply liquid crystal, bagDraw together: (a) substrate of uncoated liquid crystal is placed on saddle; (b) via the liquid with internal reservoir liquid crystalThe coating head unit of brilliant bottle is applied to the liquid crystal of scheduled volume on substrate; And (c) use uncoated liquid crystalSubstrate change the substrate of the liquid crystal that has been coated with scheduled volume, wherein, repeat (a) to (c), andAt (a) or (c) to liquid crystal bottle supply liquid crystal.
In the time repeating the number of times of (a) to (c) and equate with default number of times, can be at (a) or (c)To liquid crystal bottle supply liquid crystal.
When repeating the number of times of (a) to (c) and default number of times when unequal, if detectedThe liquid crystal of predetermined amount or the liquid crystal that is less than described predetermined amount are stored in liquid crystal bottle, at (a) or (c)To liquid crystal bottle supply liquid crystal.
In order to realize above object, the invention provides a kind of method to liquid crystal coating supply liquid crystal, bagDraw together: (a) substrate of uncoated liquid crystal is placed on saddle; (b) via the liquid with internal reservoir liquid crystalThe coating head unit of brilliant bottle is applied to the liquid crystal of scheduled volume on substrate; And (c) use uncoated liquid crystalSubstrate change the substrate of the liquid crystal that has been coated with scheduled volume, wherein, repeat (a) to (c), andAt (a) or (c) when measuring in the amount of liquid crystal that is coated with via nozzle to liquid crystal bottle supply liquid crystal.
In the time repeating the number of times of (a) to (c) and equate with default number of times, can be at (a) or (c)When measuring in the amount of liquid crystal that is coated with via nozzle to liquid crystal bottle supply liquid crystal.
When repeating the number of times of (a) to (c) and default number of times when unequal, if detectedThe liquid crystal of predetermined amount or the liquid crystal that is less than described predetermined amount are stored in liquid crystal bottle, can be at (a) or (c)To liquid crystal bottle supply liquid crystal.
In order to realize above object, the invention provides a kind of method to liquid crystal coating supply liquid crystal, bagDraw together: (a) substrate of uncoated liquid crystal is placed on saddle; (b) via the liquid with internal reservoir liquid crystalThe coating head unit of brilliant bottle is applied to the liquid crystal of scheduled volume on substrate; And (c) use uncoated liquid crystalSubstrate change the substrate of the liquid crystal that has been coated with scheduled volume, wherein, repeat (a) to (c),During repeating (a) to (c), when repeating the number of times of (a) to (c) and default equating for the m timeTime, at (a) or (c) to liquid crystal bottle supply liquid crystal, and, during repeating (a) to (c),In the time that number of repetition is the n time that presets, at (a) or (c) when measuring the liquid being coated with via nozzleIn brilliant amount, supply liquid crystal to liquid crystal bottle.
When the m time when the n time equates, can be at (a) or (c) to liquid crystal bottle supply liquid crystal, or(a) or (c) supply liquid crystal when measuring in the amount of liquid crystal of nozzle coating to liquid crystal bottle.
Comprise multiple coating head units if there is the coating head unit of liquid crystal bottle, and for to liquid crystal bottleThe liquid crystal supply unit of supply liquid crystal comprises multiple liquid crystal supplies unit, whenever multiple liquid crystal supplies unitDuring to multiple liquid crystal bottle supply liquid crystal, each in multiple liquid crystal supplies unit can be in multiple liquid crystal bottlesCorresponding liquid crystal bottle supply liquid crystal.
Comprise multiple coating head units if there is the coating head unit of liquid crystal bottle, and for to liquid crystal bottleThe liquid crystal supply unit of supply liquid crystal comprises multiple liquid crystal supplies unit, whenever multiple liquid crystal supplies unitDuring to multiple liquid crystal bottle supply liquid crystal, multiple liquid crystal supplies unit is alternately to multiple liquid crystal bottle supply liquidBrilliant.
Liquid crystal can be supplied to the liquid crystal bottle of coating head unit in liquid crystal supply unit, and liquid crystal supply unitCan comprise the liquid crystal tank of internal reservoir liquid crystal. Liquid crystal tank can be provided with measuring unit, and described measurementThe amount of liquid crystal remaining in liquid crystal tank can be measured in unit, to determine whether changing institute with new liquid crystal tankState liquid crystal tank.
Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, can more clearly understand the present invention aforesaid and otherObject, feature and advantage, wherein:
Fig. 1 is the side view that liquid crystal coating and liquid crystal supply unit are shown;
Fig. 2 is the flow process illustrating according to the method to liquid crystal coating supply liquid crystal of the embodiment of the present inventionFigure;
Fig. 3, Fig. 4 and Fig. 5 are what to illustrate according to the process to liquid crystal coating supply liquid crystal of the present inventionPlane;
Fig. 6 is illustrated in the amount of liquid crystal that measurement is coated with via the nozzle of the coating head unit of liquid crystal coatingTime to the side view of the liquid crystal bottle supply liquid crystal of coating head unit; And
Fig. 7 and Fig. 8 illustrate the plane of supplying the process of liquid crystal to the coating head unit of liquid crystal coatingFigure.
Detailed description of the invention
Below in connection with accompanying drawing describe in detail according to the embodiment of the present invention to liquid crystal coating supply liquid crystalMethod.
First in connection with Fig. 1, liquid crystal coating and liquid crystal supply unit are described.
Liquid crystal coating is installed, and purification canopy B is installed subsequently to cover liquid crystal coating. Liquid crystal supply listUnit is arranged on the outside that purifies canopy B.
Liquid crystal coating comprises: main frame 100; Saddle 200, it is arranged on main frame 100; TheOne guide unit G1, its mode with the both sides that are positioned at saddle 200 connects with main frame 100; CoatingHead unit support frame 400, it connects with the first guide unit G1; The first driver element (not shown),Its effect is mobile coating head unit support frame 400; The second guide unit G2, it is arranged on dispense tipOn unit supports framework 400; Multiple coating head units 500, it connects with the second guide unit G2;And the second driver element (not shown), its effect is mobile coating head unit 500. On liquid crystal coatingBe provided with measuring unit 110, in order to measure the amount of liquid crystal being coated with via the nozzle of coating head unit.
In liquid crystal bottle 530, be provided with sensing cell, the amount of liquid crystal holding in order to detect liquid crystal bottle 530.Sensing cell comprise first sensor (not shown) on the side surface of the bottom that is arranged on liquid crystal bottle 530,Be arranged on the second sensor (not shown) on the side surface at middle part of liquid crystal bottle 530 and be arranged onThe 3rd sensor (not shown) on the side surface on the top of liquid crystal bottle 530.
Liquid crystal supply unit comprises: liquid crystal tank 620, and it is arranged on base plate 610; Pressure feeding unit630, it is exerted pressure to liquid crystal tank 620; Tube connector 640, it is by liquid crystal tank 620 and pressure supply listUnit 630 connects; Injection unit of liquid crystal 700, its break-through purifies canopy B sidewall, and is connected with described sidewall;Pipe fitting 650, it is connected liquid crystal tank 620 with injection unit of liquid crystal 700; And valve 800, its settingOn pipe fitting 650.
Multiple liquid crystal supplies unit is preferably set.
In liquid crystal tank 620, be provided with sensing cell, in order to detect 620, the liquid crystal tank of liquid crystal supply unitThe amount of liquid crystal storing. Sensing cell can be selected from electronic scale, ultrasonic sensor and flowmeter.
Injection unit of liquid crystal 700 comprises the substructure member 720 connecting with the wall that purifies canopy B. Actuator 730Connect with substructure member 720. Guide rail (not shown) connects with actuator 730. Sliding component 740 withSlidably mode connects with guide rail, and is connected with actuator 730. Keeper 750 regularly with slipMember 740 connects. Pipe fitting stay pipe 710 connects with it in the mode through keeper 750. Pipe fitting 650An end through pipe fitting stay pipe 710 being connected with pipe fitting stay pipe 710, and pipe fitting 650 is anotherOne end is connected with liquid crystal tank 620.
Fig. 2 is the flow process illustrating according to the method to liquid crystal coating supply liquid crystal of the embodiment of the present inventionFigure. Fig. 3, Fig. 4 and Fig. 5 are what to illustrate according to the process to liquid crystal coating supply liquid crystal of the present inventionPlane.
In connection with Fig. 2, Fig. 3, Fig. 4 and Fig. 5, being coated with to liquid crystal according to the embodiment of the present invention describedThe method of machine supply liquid crystal.
Referring to Fig. 3, the substrate S of uncoated liquid crystal is placed on the saddle 200 of liquid crystal coating. FirstCoating head unit 500 is moved to liquid crystal coating position by driver element and the second driver element.
As shown in Figure 4, the first driver element and the second driver element move coating according to default dataHead unit 500. When coating head unit 500 moves along default route, the liquid crystal of scheduled volumeBe applied to substrate S via the nozzle 551 of each coating head unit 500. Substrate S is divided into multiple listsThe panel A of unit, the liquid crystal of scheduled volume is applied to each unit panel A by coating head unit 500. Be applied toThe total amount of the liquid crystal of unit panel A equates with the scheduled volume of the liquid crystal that is applied to substrate S.
After the liquid crystal of scheduled volume is applied to substrate S, as shown in Figure 5 by the substrate being positioned on saddleS unloads from saddle 200, and as shown in Figure 3 another substrate S of uncoated liquid crystal is placed in to saddle 200On.
The operation of changing substrate S with another substrate is expressed as particularly: will be coated with the substrate of liquid crystalS unloads from saddle 200, and before the substrate S of uncoated liquid crystal is placed in to saddle 200 to saddle 200Carry described substrate S.
To each substrate S in coating of liquid crystalline is repeated to such process. During repeating described process,Coating head unit 500 is moved to liquid crystal supply position by the first driver element and the second driver element. Liquid crystal suppliesAnswer unit to supply liquid crystal to the coating head unit 500 that moves to liquid crystal supply position.
After the liquid crystal of scheduled volume being applied to substrate S, can change saddle 200 with new substrate SOn substrate S and by newly change substrate S be placed on saddle 200 in, or measure via dispense tipIn the amount of liquid crystal that the nozzle 551 of unit 500 is coated with, carry out liquid crystal from the supply of liquid crystal supply unitTo the operation of coating head unit 500.
First such situation is described: be coated with the liquid crystal of scheduled volume to substrate S and using subsequently new substrateAfter S changes the substrate S on saddle 200, in the substrate S newly changing is placed on saddle 200,Each coating head unit 500 moves to liquid crystal supply position, makes liquid crystal supply unit to liquid crystal bottle supply liquid crystal.
Be coated with the liquid crystal of scheduled volume and using subsequently new substrate S more to the substrate S being positioned on saddle 200After changing the substrate S that has been coated with liquid crystal, in the substrate S newly changing is placed on saddle 200,Liquid crystal is supplied to the liquid crystal bottle 530 of each coating head unit 500 in liquid crystal supply unit. If liquid crystal supplyTo the predetermined altitude of the liquid crystal bottle 530 of coating head unit 500, stop supplies liquid crystal. Arriving will be newly moreTill when the substrate S changing is placed on saddle 200, if liquid crystal is not yet supplied to the predetermined of liquid crystal bottle 530Highly, can supply liquid crystal with extra a period of time, until by liquid crystal supply to liquid crystal bottle 530Predetermined altitude, or can be in the supply that the substrate S newly changing is stopped to liquid crystal while being placed on saddle 200.
In interrupting or stopping, after the liquid crystal bottle 530 of each coating head unit is supplied liquid crystal, first drivesCoating head unit 500 is moved to liquid crystal coating position by unit and the second driver element.
The first driver element and the second driver element move coating head unit 500 according to default data.When coating head unit 500 moves along default route, the liquid crystal of scheduled volume is via each coatingThe nozzle 551 of head unit 500 and be applied to substrate S. The liquid crystal of scheduled volume is being applied to substrate SAfterwards, change the substrate S being positioned on saddle 200 with another substrate S, and by the substrate S newly changingBe placed on saddle 200. During changing substrate S, the first driver element and the second driver element will be coated withHead unit 500 moves to the position of liquid crystal supply unit supply liquid crystal.
By repeating said process, the liquid crystal of scheduled volume can be applied to each substrate in multiple substrate SUpper, in addition, also supply liquid crystal to the liquid crystal bottle 530 of each coating head unit 500.
In addition, the time that user can supply the liquid crystal bottle 530 to each coating head unit 500 liquid crystal establishesPut differently.
First, can change and be coated with the substrate S of liquid crystal and be placed on another substrate S at every turnOn saddle 200 time, supply liquid crystal to the liquid crystal bottle 530 of each coating head unit 500. Namely, canBe to make, in the time being coated with the liquid crystal of scheduled volume to substrate S, to use another base by liquid crystal supply set of timePlate S changes substrate S and is placed on saddle 200, supplies liquid crystal to each coating head unit 500.
Also can be by the set of time of supply liquid crystal, repeat during aforementioned process, to position the m time timeAfter substrate S coating of liquid crystalline on saddle 200, when change substrate S and more with another substrate SWhen substrate S after changing is placed on saddle 200, supply liquid crystal to each coating head unit 500, wherein,M is the multiple by the specific integer of user preset, and for example specific integer is 2 or 3, or can be byThe determined any number of user (for example 3,5,7...).
If the default the m time multiple that is 3 of user, ought be for example at the 3rd time, the 6th time,9 times time, be placed on saddle 200 and the substrate S of applied liquid crystal is changed by another new substrate S and moreSubstrate after changing is supplied liquid crystal to liquid crystal bottle 530 in being placed on saddle 200. Meanwhile, when to not beingWhen the number of times of the multiple 3, be positioned at the substrate S on saddle 200---for example, in the time of the 4th or the 5thBe positioned at the substrate S on saddle 200---in coating of liquid crystalline, certain pre-if sensor has detectedIf amount liquid crystal or be stored in liquid crystal bottle 530 than its few liquid crystal, preferably using another substrateS supplies liquid crystal to liquid crystal bottle 530 in changing related substrate S and being placed on saddle 200.
Next by be described in measure the amount of liquid crystal of discharging via the nozzle 551 of coating head unit 500 itTime, each coating head unit 500 moves to liquid crystal supply position makes liquid crystal supply unit supply to liquid crystal bottle 530Answer the situation of liquid crystal.
The substrate S of uncoated liquid crystal is placed on saddle 200. As shown in Figure 6, will at liquid crystal coatingThe liquid crystal of scheduled volume moves to coating head unit 500 on measuring unit 110 after being applied on substrate SSide, to measure the amount of liquid crystal being coated with via each coating head unit 500. Preferably, by each surveyAmount unit 110 is arranged on below, position from liquid crystal to coating head unit 500 that supply. Utilize measuring unit 110Start to measure the amount of liquid crystal being coated with via the nozzle 551 of coating head unit 500. Utilizing measuring unit110 measure in the amount of liquid crystal being coated with via the nozzle 551 of coating head unit 500, liquid crystal supplyLiquid crystal is supplied to the liquid crystal bottle 530 of coating head unit 500 in unit. Herein, on saddle 200After substrate S has been coated with the liquid crystal of scheduled volume, except measuring the nozzle via coating head unit 500Outside the operation of 551 amount of liquid crystal that are coated with, also can use another substrate S to change and be coated with liquidThe operation of brilliant substrate S.
After measuring the amount of liquid crystal being coated with via nozzle 551, the first driver element and second drivesCoating head unit 500 is moved to liquid crystal coating position by moving cell.
The first driver element and the second driver element move coating head unit 500 according to default data.In moving along default route at coating head unit 500, the liquid crystal of scheduled volume is via each dispense tipThe nozzle 551 of unit 500 and be applied to substrate S.
After substrate S has been coated with the liquid crystal of scheduled volume, the first driver element and the second driver element willCoating head unit 500 moves to measuring unit 110 tops, and changes saddle 200 with another new substrate SOn substrate S.
In the time that each substrate S to uncoated liquid crystal repeats above process, liquid crystal coating is by scheduled volumeLiquid crystal is applied on each substrate in multiple substrate S. During carrying out described repetitive process, measure warpThe amount of liquid crystal being coated with by the nozzle 551 of each coating head unit 500. In measurement amount of liquid crystal, toThe liquid crystal bottle 530 of coating head unit 500 is supplied liquid crystal.
In addition, can after the liquid crystal that has at every turn been coated with scheduled volume to substrate S, measure via dispense tipThe amount of liquid crystal that the nozzle of unit is coated with is also being measured the liquid crystal bottle to coating head unit 500 in amount of liquid crystalThe operation of 530 supply liquid crystal, or can be only as the m that the liquid crystal of scheduled volume is applied at user presetAfter being positioned at the substrate S on saddle 200 when inferior, carry out described operation.
Even to being not placed in the substrate S coating fluid on saddle 200 when the m time of user presetAfter crystalline substance, also can measure as required via the nozzle 551 of coating head unit 500 and be coated withThe operation of amount of liquid crystal. In the case, in measurement amount of liquid crystal, can not be to coating head unit 500Liquid crystal bottle 530 supply liquid crystal.
In addition, the substrate S being placed on saddle 200 when to the m time at user preset is not coated withIn liquid crystal, if sensor measures the liquid crystal of certain predetermined amount or is stored in liquid than its few liquid crystalIn brilliant bottle 530, preferably after the liquid crystal of scheduled volume being applied to related substrate S to liquid crystal bottle530 supply liquid crystal.
After the liquid crystal of scheduled volume is applied on substrate, maintenance liquid crystal coating. Be coated with at maintenance liquid crystalWhen cloth machine, do not provide substrate S to the liquid crystal coating overhauling, and be coated with to the liquid crystal that is positioned at next placeCloth machine provides substrate S.
In repairing liquid crystal coating, liquid crystal supply unit can be to the liquid crystal of coating head unit 500Bottle 530 supply liquid crystal.
After having repaired liquid crystal coating, substrate S is placed on saddle 200. The first driver elementWith the second driver element, coating head unit 500 is moved to liquid crystal coating position.
The first driver element and the second driver element move coating head unit 500 according to default data.When coating head unit 500 moves along default route, the liquid crystal of scheduled volume is via each coatingThe nozzle 551 of head unit 500 and be applied to substrate S.
Whenever to multiple base plate coating the liquid crystal of scheduled volume, overhaul liquid crystal coating. Namely,Regularly liquid crystal coating is overhauled.
In addition, the following process of liquid crystal supply unit by using is supplied to the liquid crystal bottle 530 of coating head unit 500Liquid crystal.
First, actuator 730 moves forward sliding component 740. Along with sliding component 740 moves forward,The keeper 750 connecting with sliding component 740, the pipe fitting stay pipe 710 connecting with keeper 750,And pipe fitting 650 moves forward, make pipe fitting 650 insert the injection channel of the end socket 540 of liquid crystal bottle 530H。
Open valve 800, and pressure feeding unit 630 exerts pressure to the inside of liquid crystal tank 620, makeBe stored in liquid crystal in liquid crystal tank 620 pipe fitting 650 of flowing through. By means of the inside that is applied to liquid crystal tank 620Pressure, be stored in liquid crystal in liquid crystal tank 620 injection channel via pipe fitting 650 and end socket 540H and be supplied to liquid crystal bottle 530.
When liquid crystal supply is during to the predetermined altitude of liquid crystal bottle 530, pressure feeding unit 630 stops to liquid crystalTank 620 is exerted pressure, and shut off valve 800, stops thus being stored in liquid crystal via pipe fitting 650Liquid crystal supply in tank 620 is to liquid crystal bottle 530.
Actuator 730 is mobile sliding component 740 backward. Along with sliding component 740 moves backward, with cunningThe keeper 750 that moving member 740 connects, the pipe fitting stay pipe 710 connecting with keeper 750 andPipe fitting 650 moves backward, and pipe fitting 650 is moved from the injection channel H of the end socket 540 of liquid crystal bottle 530Open.
The quantity of liquid crystal supply unit can equate or be different from coating head unit with the quantity of coating head unitQuantity. If the quantity of liquid crystal supply unit equates with the quantity of coating head unit 500, whenever paintingWhen cloth head unit 500 moves to liquid crystal supply position, each liquid crystal supply unit is in coating head unit 500A corresponding supply liquid crystal. Namely, liquid crystal supply unit is to a coating head unit 500Liquid crystal bottle 530 is supplied liquid crystal.
If the quantity of liquid crystal supply unit is less than the quantity of coating head unit 500, liquid crystal supply unitAlternately supply liquid crystal to each liquid crystal bottle 530 of coating head unit 500. For example, as shown in Figure 7,Suppose to have six coating head units 500 and three liquid crystal supply unit, work as coating head unit 500 firstWhile moving to liquid crystal supply position, three liquid crystal supply unit are to the liquid crystal bottle of the coating head unit 500 of odd number530 supply liquid crystal. Next, as shown in Figure 8, when coating head unit 500 moves to liquid crystal supply again, described three liquid crystal supply unit are supplied to the liquid crystal bottle 530 of the coating head unit 500 of even number when the positionLiquid crystal.
In addition, for example, for number of repetition (for example 20 times or 25 times) all measure viaAfter the amount of liquid crystal that nozzle is coated with the liquid crystal with backward substrate S coating scheduled volume, measure via coatingThe amount of liquid crystal that the nozzle 551 of head unit 500 is coated with.
If the measured amount of liquid crystal of measuring unit 110 is in reference range, by coating head unit 500Move to liquid crystal coating position and to substrate S coating of liquid crystalline. And if the measured liquid crystal of measuring unit 110Amount exceeds reference range, adjusts discharge, makes to be coated with via the nozzle 551 of coating head unit 500The amount of liquid crystal of cloth, in reference range, and moves to coating head unit 500 liquid crystal coating position after thisPut.
When liquid crystal supply is during to the predetermined altitude of the liquid crystal bottle 530 of coating head unit 500, be arranged on liquid crystalSensor in bottle 530 detects described amount of liquid crystal. Control module makes liquid crystal supply unit stop supplies liquidBrilliant.
If the liquid crystal being stored in the liquid crystal tank 620 of liquid crystal supply unit is reduced to certain altitude, measureUnit 110 is measured, and by means of control module, alarm is shown on display unit. Administrative staff willLiquid crystal tank 620 is replaced with new liquid crystal tank.
Below according to the effect of the method to liquid crystal coating supply liquid crystal of the present invention.
According to the present invention, changing with new substrate S in the substrate S being positioned on saddle 200, willCoating head unit 500 moves to liquid crystal supply position, thereby liquid crystal is supplied to coating from liquid crystal supply unitThe liquid crystal bottle 530 of head unit 500.
According to the present invention, can be in the time changing with new substrate S the substrate S being positioned on saddle 200,Liquid crystal is supplied to the liquid crystal bottle 530 of coating head unit 500 from liquid crystal supply unit. In addition, Mei DangyongWhen new substrate S changes the substrate S being just in time positioned at when corresponding to preset times on saddle, can changeIn described substrate S, supply liquid crystal.
According to the present invention, measuring the amount of liquid crystal being coated with via the nozzle 551 of coating head unit 500In, liquid crystal can be supplied to the liquid crystal bottle 530 of coating head unit 500 from liquid crystal supply unit.
According to the present invention, in the time of maintenance liquid crystal coating, liquid crystal supply unit can be to coating head unit 500Liquid crystal bottle 530 supply liquid crystal.
Like this, according to the present invention, change with new substrate S the substrate S that is positioned on substrate 200 itTime, or in the amount of liquid crystal being coated with via the nozzle 551 of coating head unit 500 in measurement, or in inspectionRepair in liquid crystal coating, supply liquid crystal to the liquid crystal bottle 530 of coating head unit 500.
Routinely, if in the process that the liquid crystal of scheduled volume is applied to substrate S liquid crystal bottle 530Liquid crystal is used up, and must stop to the process of substrate S coating of liquid crystalline, and this can delay liquid crystal coating process.
But according to the present invention, in the period that must stop liquid crystal coating process, for example, using new substrateS changes in the substrate S being positioned on saddle 200, or is measuring the amount of liquid crystal being coated with via nozzleIn, supply liquid crystal to the liquid crystal bottle 530 of coating head unit 500, thus, liquid crystal bottle 530 is always full ofThe liquid crystal of scheduled volume or than the more liquid crystal of scheduled volume, thereby in substrate S coating of liquid crystalline can not beSupply liquid crystal and stop liquid crystal coating process to liquid crystal bottle 530.
Therefore, reduced and utilized liquid crystal coating required to the liquid crystal of each substrate S coating scheduled volumeTime.
As mentioned above, the invention provides a kind of method to liquid crystal coating supply liquid crystal, described methodTo change with new substrate in the substrate being positioned on saddle or in the spray of measuring via coating head unitIn the amount of liquid crystal that mouth is coated with or in maintenance liquid crystal coating, to the liquid crystal bottle of coating head unitSupply liquid crystal. Therefore, the liquid crystal bottle of coating head unit is always full of the liquid crystal of scheduled volume, thereby prevents at warpBy the nozzle of coating head unit in the process of base plate coating liquid crystal for to liquid crystal bottle supply liquid crystal and stopOnly liquid crystal coating operation. Thus, reduced liquid crystal coating required to the liquid crystal of base plate coating scheduled volumeTime.
Claims (3)
1. to a method for liquid crystal coating supply liquid crystal, comprising:
(a) substrate of uncoated liquid crystal is placed on saddle;
(b) via have internal reservoir liquid crystal liquid crystal bottle coating head unit and by the liquid crystal of scheduled volumeBe applied on described substrate; And
(c) change the substrate of the liquid crystal that has been coated with described scheduled volume with the substrate of uncoated liquid crystal,
Wherein, repeat (a) to (c),
During repeating (a) to (c), when repeating the number of times of (a) to (c) and default mInferior when equal, at (a) or (c) to liquid crystal bottle supply liquid crystal, and,
Repeating during (a) to (c), in the time that number of repetition is the n time that presets, at (a) or(c) when measuring in the amount of liquid crystal that is coated with via nozzle to described liquid crystal bottle supply liquid crystal,
Wherein, comprise multiple coating head units if there is the described coating head unit of described liquid crystal bottle, andAnd for comprising multiple liquid crystal supplies unit to the liquid crystal supply unit of described liquid crystal bottle supply liquid crystal, everyIn the time that liquid crystal is supplied to described liquid crystal bottle in described liquid crystal supply unit, in described multiple liquid crystal supplies unitEach is to the corresponding supply liquid crystal in described multiple liquid crystal bottles, and
Wherein, comprise multiple coating head units if there is the described coating head unit of described liquid crystal bottle, andAnd for comprising multiple liquid crystal supplies unit to the described liquid crystal supply unit of described liquid crystal bottle supply liquid crystal,Whenever described liquid crystal supply unit is during to described liquid crystal bottle supply liquid crystal, described multiple liquid crystal supplies unitAlternately to described multiple liquid crystal bottle supply liquid crystal.
2. method according to claim 1, when described m time when described n time equates, at (a)Or (c) to described liquid crystal bottle supply liquid crystal, or be coated with via nozzle when measuring at (a) or (c)Amount of liquid crystal in to described liquid crystal bottle supply liquid crystal.
3. method according to claim 1, wherein, described liquid crystal supply unit is to described dispense tip listThe described liquid crystal bottle supply liquid crystal of unit, and described liquid crystal supply unit comprises the liquid crystal of internal reservoir liquid crystalTank, described liquid crystal tank is provided with measuring unit, and described measuring unit measurement remains in described liquid crystal tankAmount of liquid crystal, to determine whether changing described liquid crystal tank with new liquid crystal tank.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| KR10-2009-0118841 | 2009-12-03 | ||
| KR20090118841 | 2009-12-03 | ||
| KR1020100108713A KR101730644B1 (en) | 2009-12-03 | 2010-11-03 | Method for supplying a liquid crystal to a liquid crystal dispenser |
| KR10-2010-0108713 | 2010-11-03 |
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| CN201610223376.8A Division CN105772362A (en) | 2009-12-03 | 2010-12-03 | Method of supplying liquid crystal to liquid-crystal dispenser |
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| CN102085507A CN102085507A (en) | 2011-06-08 |
| CN102085507B true CN102085507B (en) | 2016-05-11 |
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| CN101493608A (en) * | 2008-01-22 | 2009-07-29 | 塔工程有限公司 | Liquid crystal coating device, and device and method for supplying liquid crystal |
| CN201352290Y (en) * | 2008-07-23 | 2009-11-25 | 塔工程有限公司 | Liquid crystal supplying device |
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| CN100359393C (en) * | 2003-12-17 | 2008-01-02 | Lg.菲利浦Lcd株式会社 | Liquid crystal dispensing unit |
| CN101246286B (en) * | 2007-12-26 | 2011-03-30 | 昆山龙腾光电有限公司 | LCD instilling device |
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| US6139639A (en) * | 1994-12-28 | 2000-10-31 | Toray Industries, Inc. | Coating machine having a timer for continuously forming a coating of uniform thickness on a substrate |
| CN1892429A (en) * | 2005-06-30 | 2007-01-10 | Lg.菲利浦Lcd株式会社 | Coating apparatus and operating method thereof |
| CN101493608A (en) * | 2008-01-22 | 2009-07-29 | 塔工程有限公司 | Liquid crystal coating device, and device and method for supplying liquid crystal |
| CN201352290Y (en) * | 2008-07-23 | 2009-11-25 | 塔工程有限公司 | Liquid crystal supplying device |
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