CN102085507A - Method of supplying liquid crystal to liquid crystal coater - Google Patents
Method of supplying liquid crystal to liquid crystal coater Download PDFInfo
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- CN102085507A CN102085507A CN2010105719817A CN201010571981A CN102085507A CN 102085507 A CN102085507 A CN 102085507A CN 2010105719817 A CN2010105719817 A CN 2010105719817A CN 201010571981 A CN201010571981 A CN 201010571981A CN 102085507 A CN102085507 A CN 102085507A
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Abstract
The invention discloses a method for supplying liquid crystal to a liquid crystal coater. The method comprises the steps of (a) placing a substrate uncoated with liquid crystals on a support bench, (b) coating predetermined amount of liquid crystals onto the substrate through a coater head unit having a liquid crystal bottle with liquid crystal stored therein, and (c) replacing the substrate coated with predetermined amount of liquid crystals with a substrate uncoated with liquid crystals, repeating steps (a) to (c) and supplying liquid crystal to the liquid crystal bottle at the step (a) or step (c).
Description
Technical field
The present invention relates to method to 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.The liquid crystal supply unit is installed in the outside that purifies canopy B.
Liquid crystal coating comprises: main frame 100; Saddle 200, it is installed on the main frame 100; The first guide unit G1, its mode with the both sides that are positioned at saddle 200 connects with main frame 100; Coating head unit support frame 400, it connects with the first guide unit G1; The first driver element (not shown), its effect are mobile coating head unit support frames 400; The second guide unit G2, it is arranged on the coating head unit support frame 400; A plurality of 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 that is connected with the second guide unit G2.The liquid crystal bottle inserts member 520 and connects with supporting component 510.Liquid crystal bottle 530 inserts the liquid crystal bottle and inserts member 520.End socket 540 connects with the bottleneck of liquid crystal bottle 530, with the inlet sealing with liquid crystal bottle 530.Nozzle unit 550 is arranged on the bottom of supporting component 510.In addition, nozzle connecting tube 560 is connected with end socket 540 in the mode of passing end socket 540, thus with the liquid crystal supply in the liquid crystal bottle 530 to nozzle unit 550.Has injection channel H in the end socket 540.Nozzle unit 550 comprises nozzle 551.The upper and lower of the side surface of liquid crystal bottle 530 is respectively arranged with the sensor (not shown).
The liquid crystal supply unit comprises: liquid crystal jar 620, and it is installed on the base plate 610; Pressure feeding unit 630, it is exerted pressure to liquid crystal jar 620; Tube connector 640, it is connected liquid crystal jar 620 with pressure feeding unit 630; Liquid crystal injects unit 700, and its mode with the break-through sidewall is connected with the sidewall that purifies canopy B; Pipe fitting 650, it injects unit 700 with liquid crystal jar 620 and liquid crystal and is connected; And valve 800, it is arranged on the pipe fitting 650.Valve 800 control liquid crystal flowing to pipe fitting 650.
Liquid crystal injects unit 700 and comprises the substructure member 720 that connects with the wall that purifies canopy B.Actuator 730 connects with substructure member 720.The guide rail (not shown) connects with actuator 730.Sliding component 740 slidably connects with guide rail, and is connected with actuator 730.Keeper 750 connects with sliding component 740 regularly.Pipe fitting stay pipe 710 connects with it in the mode of passing keeper 750.An end of pipe fitting 650 is connected with pipe fitting stay pipe 710 in the mode of passing pipe fitting stay pipe 710, and the other end of pipe fitting 650 is connected with liquid crystal jar 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.First driver element and second driver element move to liquid crystal coating position with coating head unit 500 from initial position.
First driver element and second driver element come mobile coating head unit 500 according to default data.When coating head unit 500 moved, the liquid crystal of scheduled volume was applied to substrate via the nozzle 551 of each coating head unit 500.Substrate is divided into a plurality of unit panels, and the liquid crystal of scheduled volume is applied to each unit panel.The total amount that is applied to the liquid crystal of each unit panel equates with the scheduled volume of the liquid crystal that is applied to substrate.
After the liquid crystal with scheduled volume was applied to substrate, first driver element and second driver element moved to initial position with coating head unit 500.
The substrate that will be positioned on the saddle 200 is replaced with new substrate.
After placing new substrate on the saddle 200, first driver element and second driver element move to liquid crystal coating position with coating head unit 500, with to the base plate coating liquid crystal.
First driver element and second driver element come mobile coating head unit 500 according to default data.When coating head unit 500 moved, the liquid crystal of scheduled volume was applied to substrate via the nozzle 551 of each coating head unit 500.
After the liquid crystal with scheduled volume was applied to substrate, coating head unit 500 moved to initial position.The substrate that will be positioned on the saddle 200 is replaced with new substrate.
During process more than repeating, the liquid crystal of scheduled volume is applied to a plurality of substrates.
Liquid crystal coating to each base plate coating after the liquid crystal of scheduled volume, measure the amount of liquid crystal that the nozzle 551 via coating head unit 500 is coated with.Generally speaking, in each base plate coating in 20 substrates or 25 substrates after the liquid crystal of scheduled volume, measure the amount of liquid crystal that the nozzle 551 via coating head unit 500 is coated with.Utilization is installed on the measuring unit 110 of liquid crystal coating and measures described amount of liquid crystal.After each coating head unit 500 moved to the position that measuring unit 110 is installed, the nozzle 551 of coating head unit 500 was to measuring unit 110 coating of liquid crystalline, thus the measurement amount of liquid crystal.
If measuring unit 110 measured amount of liquid crystal are in the reference range, then coating head unit 500 moves to liquid crystal coating position, so that liquid crystal is applied to substrate.And if measuring unit 110 measured amount of liquid crystal exceed reference range, then adjust the feasible amount of liquid crystal that is coated with via the nozzle 551 of coating head unit 500 of discharge and be in the reference range, subsequently, coating head unit 500 moves to liquid crystal coating position.
In addition, if the amount of liquid crystal that is held in the liquid crystal bottle 530 is reduced to certain altitude, the display unit that then is arranged on the liquid crystal coating can show alarm.If demonstrate alarm, then stop via the nozzle 551 of coating head unit 500 process to the base plate coating liquid crystal.
Subsequently, coating head unit 500 is moved to the position of supply liquid crystal.
When coating head unit 500 moved to the liquid crystal supply position, the liquid crystal supply unit was to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
The following process of liquid crystal supply unit by using is to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
At first, actuator 730 moves forward sliding component 740.Along with sliding component 740 moves forward, the keeper 750 that connects with sliding component 740, the pipe fitting stay pipe 710 that connects with keeper 750 and pipe fitting 650 move forward, and make pipe fitting 650 insert the injection channel H of the end socket 540 of liquid crystal bottle 530.
Open valve 800, and pressure feeding unit 630 exerts pressure to the inside of liquid crystal jar 620, make the liquid crystal that is stored in the liquid crystal jar 620 pipe fitting 650 of flowing through.By means of the pressure inside that is applied to liquid crystal jar 620, the liquid crystal that is stored in the liquid crystal jar 620 is supplied to liquid crystal bottle 530 via the injection channel H of pipe fitting 650 and end socket 540.
With liquid crystal supply during to the predetermined altitude of liquid crystal bottle 530, pressure feeding unit 630 stops to exert pressure to liquid crystal jar 620, and shut off valve 800, thereby stops will to be stored in liquid crystal supply in the liquid crystal jar 620 to liquid crystal bottle 530 via pipe fitting 650.
The mobile backward sliding component 740 of actuator 730.Along with sliding component 740 moves backward, the keeper 750 that connects with sliding component 740, the pipe fitting stay pipe 710 that connects with keeper 750 and pipe fitting 650 move backward, and pipe fitting 650 is removed from the injection channel H of the end socket 540 of liquid crystal bottle 530.
Finish behind the liquid crystal bottle 530 supply liquid crystal of coating head unit 500, coating head unit 500 moves to liquid crystal coating position.
Like this, be reduced to certain altitude if be supplied to the amount of liquid crystal of the liquid crystal bottle 530 of coating head unit 500, then coating head unit 500 moves to the liquid crystal supply position, so that to coating head unit 500 supply liquid crystal.
But, have following point by the liquid crystal coating and the liquid crystal supply unit of aforesaid operations.That is, after the amount of liquid crystal that the liquid crystal bottle 530 of coating head unit 500 is held was reduced to certain altitude, the liquid crystal supply unit will be to liquid crystal bottle 530 supply liquid crystal.Like this, if move according to default data and be reduced to certain altitude via nozzle 551 amount of liquid crystal that liquid crystal bottle 530 is held in the liquid crystal of base plate coating scheduled volume of coating head unit 500 at coating head unit 500, then the nozzle 551 of coating head unit 500 can stop to the base plate coating liquid crystal, coating head unit 500 moves to the liquid crystal supply position subsequently, so that to coating head unit 500 supply liquid crystal.Therefore, owing to be to be applied in the process of substrate to liquid crystal bottle 530 supply liquid crystal at the liquid crystal with scheduled volume, 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 that produces in the prior art, and the purpose of this invention is to provide a kind of method to liquid crystal coating supply liquid crystal, described method is exempted in the necessity that stops coating of liquid crystalline in the process of base plate coating liquid crystal in order to supply liquid crystal.
In order to realize above purpose, the invention provides a kind of method to liquid crystal coating supply liquid crystal, comprising: (a) substrate with uncoated liquid crystal places on the saddle; (b) be applied on the substrate via the coating head unit of liquid crystal bottle liquid crystal scheduled volume with internal reservoir liquid crystal; And the substrate of (c) changing the liquid crystal that has been coated with scheduled volume with the substrate of uncoated liquid crystal, wherein, repeat (a) to (c), and at (a) or (c) to liquid crystal bottle supply liquid crystal.
When the number of times that repeats (a) to (c) equates with the number of times of presetting, can be at (a) or (c) to liquid crystal bottle supply liquid crystal.
When number of times that repeats (a) to (c) and default number of times are unequal, if the liquid crystal that detects the liquid crystal of predetermined amount or be less than described predetermined amount is stored in the liquid crystal bottle, then at (a) or (c) to liquid crystal bottle supply liquid crystal.
In order to realize above purpose, the invention provides a kind of method to liquid crystal coating supply liquid crystal, comprising: (a) substrate with uncoated liquid crystal places on the saddle; (b) be applied on the substrate via the coating head unit of liquid crystal bottle liquid crystal scheduled volume with internal reservoir liquid crystal; And the substrate of (c) changing the liquid crystal that has been coated with scheduled volume with the substrate of uncoated liquid crystal, wherein, repeat (a) to (c), and at (a) or (c) when measuring in the amount of liquid crystal that nozzle was coated with to liquid crystal bottle supply liquid crystal.
When the number of times that repeats (a) to (c) equates with the number of times of presetting, can be at (a) or (c) when measuring in the amount of liquid crystal that nozzle was coated with to liquid crystal bottle supply liquid crystal.
When number of times that repeats (a) to (c) and default number of times are unequal, if the liquid crystal that detects the liquid crystal of predetermined amount or be less than described predetermined amount is stored in the liquid crystal bottle, then can be at (a) or (c) to liquid crystal bottle supply liquid crystal.
In order to realize above purpose, the invention provides a kind of method to liquid crystal coating supply liquid crystal, comprising: (a) substrate with uncoated liquid crystal places on the saddle; (b) be applied on the substrate via the coating head unit of liquid crystal bottle liquid crystal scheduled volume with internal reservoir liquid crystal; And the substrate of (c) changing the liquid crystal that has been coated with scheduled volume with the substrate of uncoated liquid crystal, wherein, repeat (a) to (c), during repeating (a) to (c), when the number of times that repeats (a) to (c) when default the m time equates, supply liquid crystal at (a) or (c) to the liquid crystal bottle, and, during repeating (a) to (c), when number of repetition is default the n time, at (a) or (c) when measuring in the amount of liquid crystal that nozzle was coated with to liquid crystal bottle supply liquid crystal.
When the m time when the n time equates, can be at (a) or (c) to liquid crystal bottle supply liquid crystal, or at (a) or (c) when measuring in the amount of liquid crystal of nozzle coating to liquid crystal bottle supply liquid crystal.
Comprise a plurality of coating head units if having the coating head unit of liquid crystal bottle, and be used for comprising a plurality of liquid crystal supplies unit to the liquid crystal supply unit of liquid crystal bottle supply liquid crystal, then whenever a plurality of liquid crystal supplies unit during to a plurality of liquid crystal bottles supply liquid crystal, the corresponding liquid crystal bottle supply liquid crystal that each in a plurality of liquid crystal supplies unit can be in a plurality of liquid crystal bottles.
Comprise a plurality of coating head units if having the coating head unit of liquid crystal bottle, and be used for comprising a plurality of liquid crystal supplies unit to the liquid crystal supply unit of liquid crystal bottle supply liquid crystal, then whenever a plurality of liquid crystal supplies unit during to a plurality of liquid crystal bottles supply liquid crystal, a plurality of liquid crystal supplies unit is alternately to a plurality of liquid crystal bottles supply liquid crystal.
Liquid crystal can be supplied to the liquid crystal bottle of coating head unit in the liquid crystal supply unit, and the liquid crystal supply unit can comprise the liquid crystal jar of internal reservoir liquid crystal.The liquid crystal jar can be provided with measuring unit, and described measuring unit can measure the amount of liquid crystal that remains in the liquid crystal jar, to determine whether and will change described liquid crystal jar with new liquid crystal jar.
Description of drawings
By detailed description below in conjunction with accompanying drawing, can more clearly understand aforesaid and other purpose, the feature and advantage of the present invention, wherein:
Fig. 1 is the side view that liquid crystal coating and liquid crystal supply unit are shown;
Fig. 2 is the flow chart to the method for liquid crystal coating supply liquid crystal that illustrates according to the embodiment of the invention;
Fig. 3, Fig. 4 and Fig. 5 illustrate the plane of supplying the process of liquid crystal to liquid crystal coating according to of the present invention;
Fig. 6 is to the side view of the liquid crystal bottle supply liquid crystal of coating head unit when being illustrated in measurement via the amount of liquid crystal that nozzle was coated with of the coating head unit of liquid crystal coating; And
Fig. 7 and Fig. 8 illustrate plane from the process of liquid crystal to the coating head unit of liquid crystal coating that supply.
The specific embodiment
Hereinafter will describe method in conjunction with the accompanying drawings in detail to liquid crystal coating supply liquid crystal according to the embodiment of the invention.
At first will liquid crystal coating and liquid crystal supply unit be described in conjunction with Fig. 1.
Liquid crystal coating is installed, and purification canopy B is installed subsequently to cover liquid crystal coating.The liquid crystal supply unit is installed in the outside that purifies canopy B.
Liquid crystal coating comprises: main frame 100; Saddle 200, it is installed on the main frame 100; The first guide unit G1, its mode with the both sides that are positioned at saddle 200 connects with main frame 100; Coating head unit support frame 400, it connects with the first guide unit G1; The first driver element (not shown), its effect are mobile coating head unit support frames 400; The second guide unit G2, it is arranged on the coating head unit support frame 400; A plurality of 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.Liquid crystal coating is provided with measuring unit 110, in order to measure the amount of liquid crystal that nozzle was coated with via coating head unit.
Be provided with sensing cell in the liquid crystal bottle 530, in order to detect the amount of liquid crystal that liquid crystal bottle 530 is held.Sensing cell comprises 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 on the 3rd sensor (not shown) on the side surface on top of liquid crystal bottle 530.
The liquid crystal supply unit comprises: liquid crystal jar 620, and it is installed on the base plate 610; Pressure feeding unit 630, it is exerted pressure to liquid crystal jar 620; Tube connector 640, it is connected liquid crystal jar 620 with pressure feeding unit 630; Liquid crystal injects unit 700, and its break-through purifies canopy B sidewall, and is connected with described sidewall; Pipe fitting 650, it injects unit 700 with liquid crystal jar 620 and liquid crystal and is connected; And valve 800, it is arranged on the pipe fitting 650.
A plurality of liquid crystal supplies unit preferably is set.
Be provided with sensing cell in the liquid crystal jar 620, in order to the stored amount of liquid crystal of the liquid crystal jar 620 that detects the liquid crystal supply unit.Sensing cell can be selected from electronic scale, ultrasonic sensor and flowmeter.
Liquid crystal injects unit 700 and comprises the substructure member 720 that connects with the wall that purifies canopy B.Actuator 730 connects with substructure member 720.The guide rail (not shown) connects with actuator 730.Sliding component 740 slidably connects with guide rail, and is connected with actuator 730.Keeper 750 connects with sliding component 740 regularly.Pipe fitting stay pipe 710 connects with it in the mode of passing keeper 750.An end of pipe fitting 650 is passed pipe fitting stay pipe 710 and is connected with pipe fitting stay pipe 710, and the other end of pipe fitting 650 is connected with liquid crystal jar 620.
Fig. 2 is the flow chart to the method for liquid crystal coating supply liquid crystal that illustrates according to the embodiment of the invention.Fig. 3, Fig. 4 and Fig. 5 illustrate the plane of supplying the process of liquid crystal to liquid crystal coating according to of the present invention.
To the method to liquid crystal coating supply liquid crystal according to the embodiment of the invention be described in conjunction with Fig. 2, Fig. 3, Fig. 4 and Fig. 5.
Referring to Fig. 3, the substrate S of uncoated liquid crystal is placed on the saddle 200 of liquid crystal coating.First driver element and second driver element move to liquid crystal coating position with coating head unit 500.
As shown in Figure 4, first driver element and second driver element come mobile coating head unit 500 according to default data.When default route moved, the liquid crystal of scheduled volume was applied to substrate S via the nozzle 551 of each coating head unit 500 at coating head unit 500.Substrate S is divided into a plurality of unit panel A, and coating head unit 500 is applied to each unit panel A with the liquid crystal of scheduled volume.The total amount that is applied to the liquid crystal of each unit panel A equates with the scheduled volume of the liquid crystal that is applied to substrate S.
After the liquid crystal with scheduled volume was applied to substrate S, the substrate S that will be positioned at as shown in Figure 5 on the saddle unloaded from saddle 200, and as shown in Figure 3 another substrate S of uncoated liquid crystal was placed on the saddle 200.
The operation of changing substrate S with another substrate is expressed as particularly: the substrate S that will be coated with liquid crystal unloads from saddle 200, and carries described substrate S to saddle 200 before the substrate S with uncoated liquid crystal places saddle 200.
To repeating such process in each substrate S of coating of liquid crystalline.During repeating described process, first driver element and second driver element move to the liquid crystal supply position with coating head unit 500.The liquid crystal supply unit is to the coating head unit 500 supply liquid crystal that move to the liquid crystal supply position.
After the liquid crystal of scheduled volume being applied to substrate S, in can placing on the saddle 200 at the substrate S that the substrate S that changes with new substrate S on the saddle 200 also will newly change, or in the amount of liquid crystal that is coated with at the nozzle of measuring via coating head unit 500 551, carry out liquid crystal is supplied to from the liquid crystal supply unit operation of coating head unit 500.
Such situation is at first described: after being coated with the liquid crystal of scheduled volume to substrate S and having changed substrate S on the saddle 200 subsequently with new substrate S, in the substrate S that will newly change places on the saddle 200, each coating head unit 500 moves to the liquid crystal supply position, makes the liquid crystal supply unit to liquid crystal bottle supply liquid crystal.
After the substrate S on being positioned at saddle 200 has been coated with the liquid crystal of scheduled volume and has been coated with the substrate S of liquid crystal with new substrate S replacing subsequently, in the substrate S that will newly change placed on the saddle 200, the liquid crystal supply unit was to the liquid crystal bottle 530 supply liquid crystal of each coating head unit 500.If liquid crystal supply is to the predetermined altitude of the liquid crystal bottle 530 of coating head unit 500, then stop supplies liquid crystal.Till when the substrate S that will newly change places on the saddle 200, if liquid crystal is not supplied to the predetermined altitude of liquid crystal bottle 530 as yet, then available extra a period of time is supplied liquid crystal, up to the predetermined altitude of liquid crystal supply, or can when placing on the saddle 200, the substrate S that will newly change stop the supply of liquid crystal to liquid crystal bottle 530.
After the liquid crystal bottle 530 supply liquid crystal of each coating head unit, first driver element and second driver element move to liquid crystal coating position with coating head unit 500 in interrupting or stopping.
First driver element and second driver element come mobile coating head unit 500 according to default data.When default route moved, the liquid crystal of scheduled volume was applied to substrate S via the nozzle 551 of each coating head unit 500 at coating head unit 500.After the liquid crystal of scheduled volume being applied to substrate S, change the substrate S that is positioned on the saddle 200 with another substrate S, and the substrate S that will newly change places on the saddle 200.During changing substrate S, first driver element and second driver element move to coating head unit 500 position of liquid crystal supply unit supply liquid crystal.
By repeating said process, the liquid crystal of scheduled volume can be applied on each substrate among a plurality of substrate S, in addition, also supply liquid crystal to the liquid crystal bottle 530 of each coating head unit 500.
In addition, the user can be provided with the time of supplying liquid crystal to the liquid crystal bottle 530 of each coating head unit 500 different.
At first, can be when changing the substrate S that has been coated with liquid crystal and being placed on the saddle 200 with another substrate S at every turn, to the liquid crystal bottle 530 supply liquid crystal of each coating head unit 500.Just, the liquid crystal supply time can be arranged so that, change substrate S and be placed on the saddle 200 with another substrate S, to each coating head unit 500 supply liquid crystal when substrate S has been coated with the liquid crystal of scheduled volume.
The time that also can supply liquid crystal is set to, during repeating aforementioned process, to at the m time the time, be positioned at after the substrate S coating of liquid crystalline on the saddle 200, when the substrate S after changing substrate S with another substrate S and changing places on the saddle 200, to each coating head unit 500 supply liquid crystal, wherein, m is the multiple by the specific integer of user preset, and for example specific integer is 2 or 3, perhaps can be by the determined any number of user (for example 3,5,7...).
If the user is default is for the m time 3 multiple, then when for example at the 3rd time, the 6th time, the 9th time, place on the saddle 200 and in the substrate S of the applied liquid crystal substrate after new substrate S changes and changes by another places on the saddle 200, to liquid crystal bottle 530 supply liquid crystal.Simultaneously, in when not being number of times, being positioned at substrate S on the saddle 200 coating of liquid crystalline that---is positioned at the substrate S on the saddle 200 during for example in the 4th or the 5th---at 3 multiple, if sensor etc. detect the liquid crystal of certain predetermined amount or are stored in the liquid crystal bottle 530 than the liquid crystal that it lacks, then preferably in changing related substrate S and be placed on the saddle 200, supply liquid crystal to liquid crystal bottle 530 with another substrate S.
Next will be described in the amount of liquid crystal that measurement discharged via the nozzle 551 of coating head unit 500, each coating head unit 500 moves to the liquid crystal supply position and makes the situation of liquid crystal supply unit to liquid crystal bottle 530 supply liquid crystal.
The substrate S of uncoated liquid crystal is placed on the saddle 200.As shown in Figure 6, after liquid crystal coating is applied to the liquid crystal of scheduled volume on the substrate S, coating head unit 500 is moved to measuring unit 110 tops, so that measure the amount of liquid crystal that is coated with via each coating head unit 500.Preferably, each measuring unit 110 is installed in below the position of coating head unit 500 supply liquid crystal.Utilize measuring unit 110 to begin to measure the amount of liquid crystal that the nozzle 551 via coating head unit 500 is coated with.Utilizing measuring unit 110 to measure in the amount of liquid crystal that the nozzle 551 via coating head unit 500 is coated with, the liquid crystal supply unit is to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.Herein, after the substrate S on saddle 200 has been coated with the liquid crystal of scheduled volume, the operation of the amount of liquid crystal that is coated with except the nozzle of measuring via coating head unit 500 551, also can use another substrate S to change the operation of the substrate S that has been coated with liquid crystal.
After measuring the amount of liquid crystal that is coated with via nozzle 551, first driver element and second driver element move to liquid crystal coating position with coating head unit 500.
First driver element and second driver element come mobile coating head unit 500 according to default data.In coating head unit 500 moved along default route, the liquid crystal of scheduled volume was applied to substrate S via the nozzle 551 of each coating head unit 500.
After substrate S has been coated with the liquid crystal of scheduled volume, first driver element and second driver element move to measuring unit 110 tops with coating head unit 500, and change substrate S on the saddle 200 with another new substrate S.
When each substrate S to uncoated liquid crystal repeated above process, liquid crystal coating was applied to the liquid crystal of scheduled volume on each substrate among a plurality of substrate S.During carrying out described repetitive process, measure the amount of liquid crystal that the nozzle 551 via each coating head unit 500 is coated with.In the measurement amount of liquid crystal, to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
In addition, can measure after substrate S has been coated with the liquid crystal of scheduled volume via the amount of liquid crystal that nozzle was coated with of coating head unit and in the operation of measuring in the amount of liquid crystal to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500, the substrate S that perhaps can be only be positioned on the saddle 200 when the liquid crystal with scheduled volume is applied at user preset the m time carries out described operation afterwards at every turn.
Even when being not the m time, be placed in after the substrate S coating of liquid crystalline on the saddle 200, also can measure the operation of the amount of liquid crystal that the nozzle 551 via coating head unit 500 is coated with as required at user preset.In the case, in the measurement amount of liquid crystal, can not be to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
In addition, in the substrate S coating of liquid crystalline that when being not the m time, is placed on the saddle 200 at user preset, if sensors etc. measure the liquid crystal of certain predetermined amount or are stored in the liquid crystal bottle 530 than the liquid crystal that it lacks, preferably after the liquid crystal of scheduled volume being applied to related substrate S to liquid crystal bottle 530 supply liquid crystal.
After the liquid crystal with scheduled volume is applied on the substrate, the maintenance liquid crystal coating.When the maintenance liquid crystal coating, do not provide substrate S, and provide substrate S to the liquid crystal coating that is positioned at next place to the liquid crystal coating that is overhauling.
When repairing liquid crystal coating, the liquid crystal supply unit can be to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
After having repaired liquid crystal coating, substrate S is placed on the saddle 200.First driver element and second driver element move to liquid crystal coating position with coating head unit 500.
First driver element and second driver element come mobile coating head unit 500 according to default data.When default route moved, the liquid crystal of scheduled volume was applied to substrate S via the nozzle 551 of each coating head unit 500 at coating head unit 500.
Whenever to a plurality of base plate coating the liquid crystal of scheduled volume, then overhaul liquid crystal coating.Just, regularly liquid crystal coating is overhauled.
In addition, the following process of liquid crystal supply unit by using is to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
At first, actuator 730 moves forward sliding component 740.Along with sliding component 740 moves forward, the keeper 750 that connects with sliding component 740, the pipe fitting stay pipe 710 that connects with keeper 750 and pipe fitting 650 move forward, and make pipe fitting 650 insert the injection channel H of the end socket 540 of liquid crystal bottle 530.
Open valve 800, and pressure feeding unit 630 exerts pressure to the inside of liquid crystal jar 620, make the liquid crystal that is stored in the liquid crystal jar 620 pipe fitting 650 of flowing through.By means of the pressure inside that is applied to liquid crystal jar 620, the liquid crystal that is stored in the liquid crystal jar 620 is supplied to liquid crystal bottle 530 via the injection channel H of pipe fitting 650 and end socket 540.
When liquid crystal supply during to the predetermined altitude of liquid crystal bottle 530, pressure feeding unit 630 stops to exert pressure to liquid crystal jar 620, and shut off valve 800, stops will to be stored in via pipe fitting 650 liquid crystal supply in the liquid crystal jar 620 thus to liquid crystal bottle 530.
The mobile backward sliding component 740 of actuator 730.Along with sliding component 740 moves backward, the keeper 750 that connects with sliding component 740, the pipe fitting stay pipe 710 that connects with keeper 750 and pipe fitting 650 move backward, and pipe fitting 650 is removed from the injection channel H of the end socket 540 of liquid crystal bottle 530.
The quantity of liquid crystal supply unit can equate or be different from the quantity of coating head unit with the quantity of coating head unit.If the quantity of liquid crystal supply unit equates that with the quantity of coating head unit 500 then when coating head unit 500 moved to the liquid crystal supply position, each liquid crystal supply unit is a corresponding supply liquid crystal in coating head unit 500.Just, liquid crystal are supplied to the liquid crystal bottle 530 of a coating head unit 500 in a liquid crystal supply unit.
If the quantity of liquid crystal supply unit is less than the quantity of coating head unit 500, then liquid crystal supply units alternately ground is to each liquid crystal bottle 530 supply liquid crystal 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, then when coating head unit 500 moved to the liquid crystal supply position first, liquid crystal were supplied to the liquid crystal bottle 530 of the coating head unit 500 of odd number in three liquid crystal supply unit.Next, as shown in Figure 8, when coating head unit 500 moved to the liquid crystal supply position once more, described three liquid crystal supply unit were to the liquid crystal bottle 530 supply liquid crystal of the coating head unit 500 of even number.
In addition, for example, number of repetition (for example 20 times or 25 times) is all measured the amount of liquid crystal that is coated with via nozzle and subsequently after the liquid crystal of substrate S coating scheduled volume, measuring the amount of liquid crystal that the nozzle 551 via coating head unit 500 is coated with.
If measuring unit 110 measured amount of liquid crystal are in the reference range, then coating head unit 500 is moved to liquid crystal coating position and to substrate S coating of liquid crystalline.And if measuring unit 110 measured amount of liquid crystal exceed reference range, then adjust discharge, the feasible amount of liquid crystal that is coated with via the nozzle 551 of coating head unit 500 is in the reference range, and after this coating head unit 500 is moved to liquid crystal coating position.
When liquid crystal supply during to the predetermined altitude of the liquid crystal bottle 530 of coating head unit 500, the sensor that is arranged in the liquid crystal bottle 530 detects described amount of liquid crystal.Control module makes liquid crystal supply unit stop supplies liquid crystal.
If the liquid crystal that is stored in the liquid crystal jar 620 of liquid crystal supply unit is reduced to certain altitude, then measuring unit 110 is measured, and by means of control module alarm is shown on the display unit.Administrative staff are replaced with new liquid crystal jar with liquid crystal jar 620.
It below is the effect of supplying the method for liquid crystal to liquid crystal coating according to of the present invention.
According to the present invention,, coating head unit 500 is moved to the liquid crystal supply position, thereby liquid crystal is supplied to the liquid crystal bottle 530 of coating head unit 500 from the liquid crystal supply unit changing with new substrate S in the substrate S that is positioned on the saddle 200.
According to the present invention, can liquid crystal be supplied to the liquid crystal bottle 530 of coating head unit 500 from the liquid crystal supply unit when changing the substrate S that is positioned on the saddle 200 with new substrate S.In addition, when changing the substrate S that corresponding to preset times the time, just in time is positioned on the saddle, can in the described substrate S of replacing, supply liquid crystal with new substrate S.
According to the present invention, in the amount of liquid crystal that is coated with at the nozzle of measuring via coating head unit 500 551, liquid crystal can be supplied to the liquid crystal bottle 530 of coating head unit 500 from the liquid crystal supply unit.
According to the present invention, when the maintenance liquid crystal coating, the liquid crystal supply unit can be to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
Like this, according to the present invention, changing with new substrate S in the substrate S that is positioned on the substrate 200, or in the amount of liquid crystal that is coated with at the nozzle of measuring via coating head unit 500 551, or in the maintenance liquid crystal coating, to the liquid crystal bottle 530 supply liquid crystal of coating head unit 500.
Routinely, if the liquid crystal that is applied to liquid crystal bottle 530 in the process of substrate S at the liquid crystal with scheduled volume is used up, then must stop the process to substrate S coating of liquid crystalline, this can delay the liquid crystal coating process.
Yet according to the present invention, in the period that must stop the liquid crystal coating process, for example changing with new substrate S in the substrate S that is positioned on the saddle 200, or measuring in the amount of liquid crystal that nozzle was coated with, liquid crystal bottle 530 supply liquid crystal to coating head unit 500, thus, liquid crystal bottle 530 always is full of the liquid crystal of scheduled volume or than the more liquid crystal of scheduled volume, thereby can be for to liquid crystal bottle 530 supply liquid crystal and do not stop the liquid crystal coating process in substrate S coating of liquid crystalline.
Therefore, reduced the liquid crystal required time of liquid crystal coating of utilizing to each substrate S coating scheduled volume.
As mentioned above, the invention provides a kind of method to liquid crystal coating supply liquid crystal, described method is to change with new substrate in the substrate that is positioned on the saddle or measuring in the amount of liquid crystal that nozzle was coated with of coating head unit or in the maintenance liquid crystal coating, to the liquid crystal bottle supply liquid crystal of coating head unit.Therefore, the liquid crystal bottle of coating head unit always is full of the liquid crystal of scheduled volume, thereby prevents to operate in order to stop the liquid crystal coating to liquid crystal bottle supply liquid crystal in the process of base plate coating liquid crystal at the nozzle via coating head unit.Thus, reduced liquid crystal coating to the required time of the liquid crystal of base plate coating scheduled volume.
Claims (11)
1. method to liquid crystal coating supply liquid crystal comprises:
(a) substrate with uncoated liquid crystal places on the saddle;
(b) via the coating head unit of liquid crystal bottle the liquid crystal of scheduled volume is applied on the described substrate with internal reservoir liquid crystal; 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), and at (a) or (c) to described liquid crystal bottle supply liquid crystal.
2. method according to claim 1, wherein, when the number of times that repeats (a) to (c) equates with the number of times of presetting, at (a) or (c) to described liquid crystal bottle supply liquid crystal.
3. method according to claim 2, wherein, when the number of times that repeats (a) to (c) and described default number of times are unequal, if the liquid crystal that detects the liquid crystal of predetermined amount or be less than described predetermined amount is stored in the described liquid crystal bottle, then at (a) or (c) to described liquid crystal bottle supply liquid crystal.
4. method to liquid crystal coating supply liquid crystal comprises:
(a) substrate with uncoated liquid crystal places on the saddle;
(b) via the coating head unit of liquid crystal bottle the liquid crystal of scheduled volume is applied on the described substrate with internal reservoir liquid crystal; 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), and at (a) or (c) when measuring in the amount of liquid crystal that nozzle was coated with to described liquid crystal bottle supply liquid crystal.
5. method according to claim 4, wherein, when the number of times that repeats (a) to (c) equates with the number of times of presetting, at (a) or (c) when measuring in the amount of liquid crystal that described nozzle was coated with to described liquid crystal bottle supply liquid crystal.
6. method according to claim 5, wherein, when the number of times that repeats (a) to (c) and described default number of times are unequal, if the liquid crystal that detects the liquid crystal of predetermined amount or be less than described predetermined amount is stored in the described liquid crystal bottle, then at (a) or (c) to described liquid crystal bottle supply liquid crystal.
7. method to liquid crystal coating supply liquid crystal comprises:
(a) substrate with uncoated liquid crystal places on the saddle;
(b) via the coating head unit of liquid crystal bottle the liquid crystal of scheduled volume is applied on the described substrate with internal reservoir liquid crystal; 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 the number of times that repeats (a) to (c) when default the m time equates, supply liquid crystal at (a) or (c) to the liquid crystal bottle, and,
During repeating (a) to (c), when number of repetition is default the n time, at (a) or (c) when measuring in the amount of liquid crystal that nozzle was coated with to described liquid crystal bottle supply liquid crystal.
8. method according to claim 7, when described m time when described n time equates, at (a) or (c) to described liquid crystal bottle supply liquid crystal, or at (a) or (c) when measuring in the amount of liquid crystal that nozzle was coated with to described liquid crystal bottle supply liquid crystal.
9. according to claim 1,4 or 7 described methods, wherein, comprise a plurality of coating head units if having the described coating head unit of described liquid crystal bottle, and be used for comprising a plurality of liquid crystal supplies unit to the liquid crystal supply unit of described liquid crystal bottle supply liquid crystal, then whenever described liquid crystal supply unit during to described liquid crystal bottle supply liquid crystal, the corresponding supply liquid crystal of each in described a plurality of liquid crystal supplies unit in described a plurality of liquid crystal bottles.
10. according to claim 1,4 or 7 described methods, wherein, comprise a plurality of coating head units if having the described coating head unit of described liquid crystal bottle, and be used for comprising a plurality of liquid crystal supplies unit to the described liquid crystal supply unit of described liquid crystal bottle supply liquid crystal, then whenever described liquid crystal supply unit during to described liquid crystal bottle supply liquid crystal, liquid crystal are supplied to described a plurality of liquid crystal bottles in described a plurality of liquid crystal supply units alternatelies ground.
11. according to claim 1,4 or 7 described methods, wherein, described liquid crystal supply unit is to the described liquid crystal bottle supply liquid crystal of described coating head unit, and described liquid crystal supply unit comprises the liquid crystal jar of internal reservoir liquid crystal, described liquid crystal jar is provided with measuring unit, described measuring unit measurement remains in the amount of liquid crystal in the described liquid crystal jar, to determine whether and will change described liquid crystal jar with new liquid crystal jar.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 true CN102085507A (en) | 2011-06-08 |
| CN102085507B CN102085507B (en) | 2016-05-11 |
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