CN103885254B - Liquid crystal drip-injection control system, method and device - Google Patents
Liquid crystal drip-injection control system, method and device Download PDFInfo
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- CN103885254B CN103885254B CN201410090588.4A CN201410090588A CN103885254B CN 103885254 B CN103885254 B CN 103885254B CN 201410090588 A CN201410090588 A CN 201410090588A CN 103885254 B CN103885254 B CN 103885254B
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Abstract
The present invention relates to display technology field, disclose a kind of liquid crystal drip-injection control system, method and device, to improve the precision of the liquid crystal loading of liquid crystal panel, improve the display quality of liquid crystal indicator, and improve the production efficiency of product.This liquid crystal drip-injection control system, including：Liquid crystal drip-injection machine；Phase analysis device, passes through the ordinary light of liquid crystal droplet formation and the current phase difference of non-ordinary light for gathering and calculating incident illumination, and the time of contact of record liquid crystal droplet and incident illumination；The control device being connected with phase analysis device and liquid crystal drip-injection machine signal, the corresponding relation for the time of contact according to liquid crystal droplet and described incident illumination and current phase difference and the volume of liquid crystal droplet obtains the volume of liquid crystal droplet；Determine the quality of liquid crystal droplet according to the volume of liquid crystal droplet；When the quality of liquid crystal droplet exceeds the permission mass range of liquid crystal droplet, export instillation stop signal, control liquid crystal drip-injection machine to stop instiling.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of liquid crystal drip-injection control system, method and device.
Background technology
Liquid crystal panel is TFT-LCD（Thin Film Transistor Liquid Crystal Display, thin film is brilliant
Body pipe-liquid crystal indicator）Core component, generally include：The color membrane substrates that box is put and array base palte, and be filled in
The filling of the liquid crystal to box intracavity, wherein liquid crystal generally adopts ODF（One Drop Filling, liquid crystal drip-injection method）To realize,
It follows that the box that the loading of liquid crystal directly affects liquid crystal panel is thick, the box thickness of liquid crystal panel is the optical property of TFT-LCD
One of with the major influence factors of display quality.
In existing liquid crystal panel manufacturing process, it usually needs for monitor liquid crystal droplet quantity liquid crystal drip-injection system and
The liquid crystal mass monitoring system of monitoring liquid crystal droplet quality fills the liquid crystal of certain mass to liquid crystal panel.As shown in figure 1, liquid crystal
Mass monitoring system include the liquid crystal drip-injection machine 1 of off-line state, meausring apparatus 3 and respectively with liquid crystal drip-injection machine 1, weigh dress
Put the control device of 3 connections（In figure is not shown）, specific work process is as follows：Liquid crystal drip-injection machine 1 in off-line state, to title
The liquid crystal of amount device 3 holds utensil 31 and drips the liquid crystal droplet 11 of sample size, and meausring apparatus 3 weighs the liquid crystal droplet of this sample
11 gross mass, control device determines the brilliant quality of every dropping liquid according to the gross mass of the liquid crystal droplet 11 of sample size.
As shown in Fig. 2 existing liquid crystal drip-injection system includes：Liquid crystal drip-injection machine 1, bright induction installation, and respectively with
The control device that liquid crystal drip-injection machine 1, bright induction installation connect（In figure is not shown）；Wherein, bright induction installation is included respectively
The light-emitting device 21 of the both sides of the liquid crystal droplet 11 dripping positioned at liquid crystal drip-injection machine 1 and reception device 22, light-emitting device 21 is permissible
For light emitting diode.Liquid crystal drip-injection system specific work process is as follows：The light-emitting device 21 of bright induction installation emits beam, and connects
Receiving apparatus 22 carry out ray-collecting, and when liquid crystal droplet 11 drips moment, the light that light-emitting device 21 sends is blocked, and leads to connect
The light luminance that receiving apparatus 22 receive changes, and this timed unit carries out digital record, and the dropping liquid that often drips is brilliant, record
Numeral accordingly increases, and therefore, the numeral liquid crystal sum that i.e. correspondence is dripped of control device record, due to liquid crystal quality-monitoring system
System has obtained the quality of liquid crystal droplet, when liquid crystal drop number is equal to the liquid crystal drop number setting, controls liquid crystal drip-injection machine to stop dripping
Note, now, in liquid crystal panel 8, liquid crystal loading is equal to and sets loading.
Prior art has a drawback in that, the quality of the liquid crystal droplet of liquid crystal mass monitoring system monitoring is liquid crystal drip-injection
Liquid crystal droplet quality during machine off-line state, and the meansigma methodss for sample size liquid crystal droplet, therefore so that liquid crystal drip-injection system
System is relatively low according to the liquid crystal filling accuracy of measurement of this filling to liquid crystal panel for liquid crystal droplet quality, so that liquid crystal indicator
Display quality poor；And, after liquid crystal drip-injection system often completes the instillation of several pieces liquid crystal panels, liquid crystal drip-injection system needs to stop
Only work, again monitor the quality of the liquid crystal droplet of liquid crystal drip-injection machine in off-line state so that production efficiency is relatively low.
Content of the invention
The invention provides a kind of liquid crystal drip-injection control system, method and device, the liquid crystal in order to improve liquid crystal panel is filled out
The precision of charge, improves the display quality of liquid crystal indicator, and improves the production efficiency of product.
The liquid crystal drip-injection control system that the present invention provides, including：
Liquid crystal drip-injection machine；
Phase analysis device, the ordinary light passing through described liquid crystal droplet formation for gathering incident illumination with non-ordinary light and calculates
Ordinary light and the current phase difference of non-ordinary light, and the time of contact of record liquid crystal droplet and described incident illumination；
Control device, is connected with described phase analysis device and liquid crystal drip-injection machine signal, for according to liquid crystal droplet and institute
State the time of contact of incident illumination and described ordinary light is closed with the current phase difference of non-ordinary light and the corresponding of volume of liquid crystal droplet
System obtains the volume of liquid crystal droplet；Determine the quality of liquid crystal droplet according to the volume of liquid crystal droplet；When the quality of liquid crystal droplet surpasses
Go out liquid crystal droplet permission mass range when, export instillation stop signal, control liquid crystal drip-injection machine stop instil.
In technical solution of the present invention, phase analysis device gathers and calculates the current phase difference of ordinary light and non-ordinary light,
The time of contact of record liquid crystal droplet and described incident illumination simultaneously；Control device is according to liquid crystal droplet contact with described incident illumination
Time and described ordinary light obtain liquid crystal droplet with the current phase difference of non-ordinary light with the corresponding relation of the volume of liquid crystal droplet
Volume and determine the quality of liquid crystal droplet；When the quality of liquid crystal droplet exceeds the permission mass range of liquid crystal droplet, output
Instillation stop signal, controls liquid crystal drip-injection machine to stop instiling, therefore, the liquid crystal drip-injection control system that the present invention provides can be online
Monitor every dropping liquid crystalloid amount and liquid crystal drop number, thus liquid crystal is filled out when improve liquid crystal drip-injection control system filling liquid crystal panel simultaneously
The precision of charge, the display being effectively prevented the liquid crystal indicator extremely leading to because of liquid crystal loading is bad, thus improving
The display quality of liquid crystal indicator；And, compared to prior art, the liquid crystal drip-injection system that the present embodiment provides does not need
Completing brought offline after the filling of several pieces liquid crystal panels, again monitoring the quality of liquid crystal droplet, thus further increasing product
The production efficiency of product.
Preferably, described incident illumination is line polarized light.
Preferably, this liquid crystal drip-injection control system also includes：
Light-emitting device；
The polarizer, is arranged at the light emission side of described light-emitting device, and the light for sending described light-emitting device is converted into
Line polarized light through liquid crystal droplet.
Preferably, in this liquid crystal drip-injection control system, described control device is further used for record liquid crystal drip-injection machine and drips
The quantity of liquid crystal droplet and liquid crystal drip-injection machine current instillation position.
Using technique scheme, can effectively further improve the precision of the liquid crystal loading of liquid crystal panel, improve
The display quality of liquid crystal indicator.
Based on identical inventive concept, present invention also offers a kind of liquid crystal drip-injection control method, including：
Time of contact according to liquid crystal droplet and described incident illumination and the current phase difference of described ordinary light and non-ordinary light
Obtain the volume of liquid crystal droplet with the corresponding relation of the volume of liquid crystal droplet；
Determine the quality of liquid crystal droplet according to the volume of liquid crystal droplet；
When the quality of liquid crystal droplet exceeds the permission mass range of liquid crystal droplet, export instillation stop signal, control liquid
Brilliant instillation machine stops instiling.
This liquid crystal drip-injection control method can monitor every dropping liquid crystalloid amount and liquid crystal drop number online simultaneously, thus improve
During liquid crystal drip-injection control system filling liquid crystal panel, the precision of liquid crystal loading, is effectively prevented and extremely leads to because of liquid crystal loading
Liquid crystal indicator display bad, thus improving the display quality of liquid crystal indicator；And compared to prior art
The production efficiency of product can be improved.
Based on identical inventive concept, present invention also offers a kind of liquid crystal drip-injection control device, including：
First control device, for the time of contact according to liquid crystal droplet and described incident illumination and described ordinary light with
The corresponding relation of the current phase difference of non-ordinary light and the volume of liquid crystal droplet obtains the volume of liquid crystal droplet；
Second control device, for determining the quality of liquid crystal droplet according to the volume of liquid crystal droplet；
Outut device, for when liquid crystal droplet quality exceed liquid crystal droplet permission mass range when, output instillation stop
Stop signal, controls liquid crystal drip-injection machine to stop instiling.
The liquid crystal drip-injection control device being provided can monitor every dropping liquid crystalloid amount and liquid crystal drop number online simultaneously, thus carrying
The precision of liquid crystal loading during high liquid crystal drip-injection control system filling liquid crystal panel, be effectively prevented because liquid crystal loading abnormal
The display of the liquid crystal indicator leading to is bad, thus improving the display quality of liquid crystal indicator；And compared to existing
Technology can improve the production efficiency of product.
Brief description
Fig. 1 is the structural representation of existing liquid crystal mass monitoring system；
Fig. 2 is the structural representation of existing liquid crystal drip-injection system；
Fig. 3 is the structural representation of first embodiment of the invention liquid crystal drip-injection control system；
Fig. 4 calculates the simulation Computing Principle of liquid crystal droplet volume one embodiment for liquid crystal drip-injection control system of the present invention
Figure；
Fig. 5 is the structural representation of second embodiment of the invention liquid crystal drip-injection control system；
Fig. 6 is the schematic flow sheet of one embodiment of the invention liquid crystal drip-injection control method；
Fig. 7 is one embodiment of the invention liquid crystal drip-injection control device structural representation.
Reference：
1- liquid crystal drip-injection machine 11- liquid crystal droplet 21- light-emitting device（Prior art）
22- reception device 3- meausring apparatus 31- liquid crystal holds utensil
4- phase analysis device 41- analyzer 5- control device
6- light-emitting device 7- polarizer 8- liquid crystal panel
90- the first control device 91- the second control device 93- outut device
Specific embodiment
In order to improve the precision of the liquid crystal loading of liquid crystal panel, improve the display quality of liquid crystal indicator, and improve
The production efficiency of product, embodiments provides a kind of liquid crystal drip-injection control system, method and device.In this liquid crystal drip-injection
In control system, phase analysis device gathers and calculates the current phase difference of ordinary light and non-ordinary light, records liquid crystal droplet simultaneously
Time of contact with described incident illumination；Control device is used for the time of contact according to liquid crystal droplet and described incident illumination and seeks
The current phase difference of ordinary light and non-ordinary light obtains the quality of liquid crystal droplet, when the quality of liquid crystal droplet exceeds the permission of liquid crystal droplet
During mass range, export instillation stop signal, control liquid crystal drip-injection machine to stop instiling, therefore, the present invention can supervise online simultaneously
Survey every dropping liquid crystalloid amount and liquid crystal drop number, thus liquid crystal loading when improve liquid crystal drip-injection control system filling liquid crystal panel
Precision, improves the display quality of liquid crystal indicator；And improve the production efficiency of product.Below with specific embodiment simultaneously
It is described with reference to the accompanying drawings the present invention.
As shown in figure 3, the liquid crystal drip-injection control system that first embodiment of the invention is provided, including：
Liquid crystal drip-injection machine 1；
Phase analysis device 4, with non-ordinary light and calculates and seeks for gathering the ordinary light through liquid crystal droplet formation for the incident illumination
Ordinary light and the current phase difference of non-ordinary light, and the time of contact of record liquid crystal droplet and incident illumination；
Control device 5, is connected with phase analysis device 4 and liquid crystal drip-injection machine 1 signal, for according to liquid crystal droplet and incidence
The time of contact of light and ordinary light obtain liquid crystal with the current phase difference of non-ordinary light with the corresponding relation of the volume of liquid crystal droplet
The volume of drop；Determine the quality of liquid crystal droplet according to the volume of liquid crystal droplet；When the quality of liquid crystal droplet exceeds liquid crystal droplet
Permission mass range when, export instillation stop signal, control liquid crystal drip-injection machine 1 stop instil.
The concrete form of control device 5 does not limit, and can be personal computer, or be integrated in liquid crystal drip-injection machine 1 can
Programmable controller.Incident illumination is line polarized light naturally it is also possible to pass through, for other, the light producing phase contrast after liquid crystal droplet.Liquid
The permission mass range of brilliant drop requires parameter determination with specific reference to the display quality of liquid crystal panel, and here is not especially limited.
The specific work process of the embodiment of the present invention so that incident illumination is as linearly polarized photon is as a example described：Liquid crystal molecule has light
Learn anisotropy（Ordinary light o light is changed with the spread speed of non-ordinary light e light）So that incident illumination passes through shape after liquid crystal droplet
The ordinary light and the non-ordinary light that become and produce optical path difference, phase analysis device 4 gather the ordinary light that each reception arrives with very
Light simultaneously calculates the current phase difference of ordinary light and non-ordinary light, simultaneously the time of contact of record liquid crystal droplet and incident illumination, and should
The time of contact of current phase difference and liquid crystal droplet and incident illumination sends to control device 5；Control device 5 according to liquid crystal droplet with
The time of contact of incident illumination and ordinary light are obtained with the corresponding relation of the volume of liquid crystal droplet with the current phase difference of non-ordinary light
The volume of liquid crystal droplet；The density of the volume according to liquid crystal droplet and liquid crystal material determines the quality of liquid crystal droplet；When liquid crystal liquid
When the quality dripped exceeds the permission mass range of liquid crystal droplet, export instillation stop signal, control liquid crystal drip-injection machine 1 to stop dripping
Note.
As the above analysis, the liquid crystal drip-injection control system that the present embodiment provides is applied to the liquid of various unlike materials
Crystalline substance, can monitor every dropping liquid crystalloid amount and liquid crystal drop number online simultaneously, thus improve liquid crystal drip-injection control system filling liquid crystal
The precision of liquid crystal loading during panel, is effectively prevented the display of the liquid crystal indicator extremely leading to because of liquid crystal loading not
Good, thus improving the display quality of liquid crystal indicator；And, the liquid crystal drop providing compared to prior art, the present embodiment
Injection system does not need after the filling completing several pieces liquid crystal panels brought offline periodically again to monitor the quality of liquid crystal droplet,
Effectively save liquid crystal material, and improve the production efficiency of product.
Liquid crystal droplet and the time of contact of incident illumination and the current phase difference of ordinary light and non-ordinary light and liquid crystal droplet
The corresponding relation of volume does not limit, such as the volume simulation schematic diagram calculation of liquid crystal droplet shown in Fig. 4, figure 4, it is seen that work as
Linearly polarized photon, after anisotropic liquid crystal droplet, occurs birefringence to be decomposed into ordinary light（O-ray）With non-ordinary light (E-
Ray), the polarization direction of ordinary light its direction of advance vertical is parallel with the plane that liquid crystal optic axis are constituted, the polarization direction of non-ordinary light
Parallel with the plane that liquid crystal optic axis are constituted parallel to direction of advance, ordinary light o light is become with the spread speed of non-ordinary light e light
Change so that linearly polarized photon passes through the ordinary light of liquid crystal droplet formation and non-ordinary light produces optical path difference.
Specifically, the contact in X direction of liquid crystal droplet and incident illumination is apart from Xmax, that is, liquid crystal droplet is in X direction through incidence
The total displacement of light, meets relational expression
Wherein, g is acceleration of gravity, and T is the time of contact of liquid crystal droplet and incident illumination.
Assume liquid crystal droplet in dropping process, the longitudinal cross-section of liquid crystal droplet is ellipse, then there is corresponding as follows closing
System：Define liquid crystal droplet and come into contact with initial coordinate X during incident illumination0=0, liquid crystal droplet falls to beginning and does not contact incident illumination
End of a period coordinate X1=Xmax, now, light path r (t) that incident illumination passes through in liquid crystal droplet increases from zero to r (t)maxIt is decreased to again
Zero, wherein, incident illumination through the light path in liquid crystal droplet maximum when fall to coordinate X corresponding to liquid crystal droplet2Place,
Therefore,
Incident illumination is through the light path in liquid crystal droplet from zero to maximum r (t)maxWhen, any instant incident illumination is in liquid crystal droplet
Interior light path meets relational expression
Wherein, △ (t1) pass through light path in liquid crystal droplet from zero to ordinary light during maximum and non-ordinary light for incident illumination
Current phase difference, △ n is liquid-crystal refractive-index anisotropy, △ n=ne-no, neWhen paralleling with liquid crystal optic axis direction for polarization direction
The refractive index of liquid crystal molecule, noFor the refractive index of polarization direction and liquid crystal optic axis direction liquid crystal molecule when perpendicular, λ is incident illumination
Wavelength in a vacuum.
Incident illumination is through the light path in liquid crystal droplet from maximum r (t)maxDuring to zero, any instant incident illumination is in liquid crystal droplet
Interior light path meets relational expression
Wherein, △ (t2) pass through light path in liquid crystal droplet from maximum to ordinary light when zero with non-ordinary light for incident illumination
Current phase difference；
Assume liquid crystal droplet in dropping process, the cross section of liquid crystal droplet is circle, then the volume of liquid crystal droplet
According to the relation of the quality of the volume of liquid crystal droplet, the density of liquid crystal material and liquid crystal droplet in physics principle,
Determine the quality of liquid crystal droplet
It is line polarized light to obtain incident illumination, as shown in figure 5, the liquid crystal drip-injection control that second embodiment of the invention is provided
System processed, also includes light-emitting device 6, is used for emitting beam；The polarizer 7, the light for sending light-emitting device 6 is converted into
Cross the line polarized light of liquid crystal droplet 11.
As shown in Figure 5, the direction of propagation of light, light-emitting device 6 and phase place is wherein shown with the straight line shown in arrow
Analytical equipment 4 is respectively arranged at the both sides of the liquid crystal droplet 11 that liquid crystal drip-injection machine 1 drips, and the polarizer 7 is arranged at light-emitting device 6
Light emission side, the light for sending light-emitting device 6 is converted into the line polarized light through liquid crystal droplet 11, now, phase analysis
Include accordingly inside device 4 passing through the ordinary light of liquid crystal droplet formation and the analyzer 41 of non-ordinary light for gathering incident illumination.
As the another preferred liquid crystal drip-injection control system embodiment of the present invention, control device 5 is further used for recording liquid
The quantity of liquid crystal droplet 11 and the current instillation position of liquid crystal drip-injection machine 1 that brilliant instillation machine 1 drips.
In the present embodiment, control device is used for recording the quantity of the liquid crystal droplet that liquid crystal drip-injection machine drips, and works as liquid crystal drop
When the liquid crystal droplet that note machine drips is equal to the liquid crystal droplet quantity setting, controls liquid crystal drip-injection machine to stop instiling, especially work as liquid crystal
When the quality of drop exceeds the permission mass range of liquid crystal droplet, export instillation stop signal, control liquid crystal drip-injection machine to stop dripping
Note, now records the current instillation position of the liquid crystal droplet quantity currently dripped and liquid crystal drip-injection machine, liquid crystal drip-injection machine is dripped
Under liquid crystal droplet quality be corrected, continue after correction online instil, continue on the basis of the liquid crystal droplet quantity of original record
Continuous counting, can effectively further improve the precision of the liquid crystal loading of liquid crystal panel, improve liquid crystal indicator
Display quality.
For example, every piece of display floater needs to fill the liquid crystal droplet of 50 certain mass, when liquid crystal drip-injection control
System monitoring processed to liquid crystal droplet quality exceed allow mass range when, stop instil, now record and drip
Liquid crystal droplet quantity 20, the current instillation position coordinateses of liquid crystal drip-injection machine are (xt,yt), liquid crystal is carried out to liquid crystal drip-injection machine
After drop mass correction, continue the liquid crystal droplet quantity 20 in original record and existed according to the position coordinateses of system record afterwards
Line instils 30, meets the liquid crystal loading of liquid crystal panel, therefore, it is possible to effectively further improve the liquid of liquid crystal panel
The precision of brilliant loading, improves the display quality of liquid crystal indicator.
As shown in fig. 6, being based on identical inventive concept, the embodiment of the present invention additionally provides a kind of liquid crystal drip-injection controlling party
Method, including：
Step 601：Time of contact according to liquid crystal droplet and incident illumination and the current phase difference of ordinary light and non-ordinary light
Obtain the volume of liquid crystal droplet with the corresponding relation of the volume of liquid crystal droplet；
Step 602：Determine the quality of liquid crystal droplet according to the volume of liquid crystal droplet；
Step 603：Judge whether the quality of liquid crystal droplet exceeds the permission mass range of liquid crystal droplet, if it is, execution
Step 604, otherwise, execution step 601；
Step 604：Output instillation stop signal, controls liquid crystal drip-injection machine to stop instiling.
The liquid crystal drip-injection control method that the present embodiment provides can monitor every dropping liquid crystalloid amount and liquid crystal drop number online simultaneously,
Thus when improve liquid crystal drip-injection control system filling liquid crystal panel liquid crystal loading precision, be effectively prevented because liquid crystal filling
The display of the abnormal liquid crystal indicator leading to of amount is bad, thus improving the display quality of liquid crystal indicator；And compare
The production efficiency of product can be improved in prior art.
As the present invention one preferred embodiment, this liquid crystal drip-injection control method also includes：Record liquid crystal drip-injection machine drips
The quantity of liquid crystal droplet and liquid crystal drip-injection machine current instillation position coordinateses.
The beneficial effect of various embodiments above is the same, is not repeated herein and repeats.
As shown in fig. 7, being based on same inventive concept, the embodiment of the present invention additionally provides a kind of liquid crystal drip-injection control device,
Including：
First control device 90, for the time of contact according to liquid crystal droplet and incident illumination and ordinary light and non-ordinary light
The corresponding relation of the volume of current phase difference and liquid crystal droplet obtain the volume of liquid crystal droplet；
Second control device 91, for determining the quality of liquid crystal droplet according to the volume of liquid crystal droplet；
Outut device 92, for when liquid crystal droplet quality exceed liquid crystal droplet permission mass range when, output instil
Stop signal, controls liquid crystal drip-injection machine to stop instiling.
The liquid crystal drip-injection control device that the present embodiment provides can monitor every dropping liquid crystalloid amount and liquid crystal drop number online simultaneously,
Thus when improve liquid crystal drip-injection control system filling liquid crystal panel liquid crystal loading precision, be effectively prevented because liquid crystal filling
The display of the abnormal liquid crystal indicator leading to of amount is bad, thus improving the display quality of liquid crystal indicator；And compare
The production efficiency of product can be improved in prior art.
As the present invention one preferred embodiment, the first control device in this liquid crystal drip-injection control device, it is further used for
The quantity of liquid crystal droplet and the current instillation position coordinateses of liquid crystal drip-injection machine that record liquid crystal drip-injection machine drips.
The beneficial effect of various embodiments above is the same, is not repeated herein and repeats.
In addition, can be integrated in a processing module in each functional unit in each embodiment of the present invention it is also possible to
It is that unit is individually physically present it is also possible to two or more units are integrated in a module.Above-mentioned integrated mould
Block both can be to be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.If integrated module with
The form of software function module is realized and as independent production marketing or when using it is also possible to be stored in a computer-readable
Take in storage medium.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (8)
1. a kind of liquid crystal drip-injection control system is it is characterised in that include：
Liquid crystal drip-injection machine；
Phase analysis device, for gather incident illumination pass through liquid crystal droplet formation ordinary light and non-ordinary light and calculate ordinary light with
The current phase difference of non-ordinary light, and the time of contact of record liquid crystal droplet and described incident illumination；
Control device, is connected with described phase analysis device and liquid crystal drip-injection machine signal, for according to liquid crystal droplet with described enter
Penetrate the time of contact of light and described ordinary light is obtained with the corresponding relation of the volume of liquid crystal droplet with the current phase difference of non-ordinary light
Volume to liquid crystal droplet；Determine the quality of liquid crystal droplet according to the volume of liquid crystal droplet；When the quality of liquid crystal droplet exceeds liquid
During the permission mass range of brilliant drop, export instillation stop signal, control liquid crystal drip-injection machine to stop instiling；
Wherein, the current phase place of the time of contact of described liquid crystal droplet and described incident illumination and described ordinary light and non-ordinary light
Difference is specially with the corresponding relation of the volume of liquid crystal droplet：
Wherein, VLCFor the volume of liquid crystal droplet, △ (t1) pass through light path in liquid crystal droplet from zero to during maximum for incident illumination
Ordinary light and the current phase difference of non-ordinary light, △ (t2) for incident illumination through the light path in liquid crystal droplet from maximum to seeking when zero
Ordinary light and the current phase difference of non-ordinary light, △ n is liquid-crystal refractive-index anisotropy, and g is acceleration of gravity, and T is liquid crystal droplet and institute
State the time of contact of incident illumination, λ is incident illumination wavelength in a vacuum.
2. liquid crystal drip-injection control system as claimed in claim 1 is it is characterised in that described incident illumination is line polarized light.
3. liquid crystal drip-injection control system as claimed in claim 2 is it is characterised in that also include：
Light-emitting device；
The polarizer, is arranged at the light emission side of described light-emitting device, and the light for sending described light-emitting device is converted into transmission
The line polarized light of liquid crystal droplet.
4. liquid crystal drip-injection control system as claimed in claim 1 is it is characterised in that described control device is further used for recording
The quantity of the liquid crystal droplet that liquid crystal drip-injection machine drips and the current instillation position of liquid crystal drip-injection machine.
5. a kind of liquid crystal drip-injection control method is it is characterised in that include：
According to liquid crystal droplet and the time of contact of incident illumination and the current phase difference of ordinary light and non-ordinary light and liquid crystal droplet
The corresponding relation of volume obtains the volume of liquid crystal droplet；
Determine the quality of liquid crystal droplet according to the volume of liquid crystal droplet；
When the quality of liquid crystal droplet exceeds the permission mass range of liquid crystal droplet, export instillation stop signal, control liquid crystal drop
Note machine stops instiling；
Wherein, the current phase place of the time of contact of described liquid crystal droplet and described incident illumination and described ordinary light and non-ordinary light
Difference is specially with the corresponding relation of the volume of liquid crystal droplet：
Wherein, VLCFor the volume of liquid crystal droplet, △ (t1) pass through light path in liquid crystal droplet from zero to during maximum for incident illumination
Ordinary light and the current phase difference of non-ordinary light, △ (t2) for incident illumination through the light path in liquid crystal droplet from maximum to seeking when zero
Ordinary light and the current phase difference of non-ordinary light, △ n is liquid-crystal refractive-index anisotropy, and g is acceleration of gravity, and T is liquid crystal droplet and institute
State the time of contact of incident illumination, λ is incident illumination wavelength in a vacuum.
6. liquid crystal drip-injection control method as claimed in claim 5 is it is characterised in that also include recording what liquid crystal drip-injection machine dripped
The quantity of liquid crystal droplet and the current instillation position of liquid crystal drip-injection machine.
7. a kind of liquid crystal drip-injection control device is it is characterised in that include：
First control device, current for the time of contact according to liquid crystal droplet and incident illumination and ordinary light and non-ordinary light
The corresponding relation of the volume of phase contrast and liquid crystal droplet obtains the volume of liquid crystal droplet；
Second control device, for determining the quality of liquid crystal droplet according to the volume of liquid crystal droplet；
Outut device, for when liquid crystal droplet quality exceed liquid crystal droplet permission mass range when, output instil stop letter
Number, control liquid crystal drip-injection machine to stop instiling；
Wherein, the current phase place of the time of contact of described liquid crystal droplet and described incident illumination and described ordinary light and non-ordinary light
Difference is specially with the corresponding relation of the volume of liquid crystal droplet：
Wherein, VLCFor the volume of liquid crystal droplet, △ (t1) pass through light path in liquid crystal droplet from zero to during maximum for incident illumination
Ordinary light and the current phase difference of non-ordinary light, △ (t2) for incident illumination through the light path in liquid crystal droplet from maximum to seeking when zero
Ordinary light and the current phase difference of non-ordinary light, △ n is liquid-crystal refractive-index anisotropy, and g is acceleration of gravity, and T is liquid crystal droplet and institute
State the time of contact of incident illumination, λ is incident illumination wavelength in a vacuum.
8. liquid crystal drip-injection control device as claimed in claim 7, it is characterised in that described first control device, is used further
In the record quantity of liquid crystal droplet dripped of liquid crystal drip-injection machine and the current instillation position of liquid crystal drip-injection machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410090588.4A CN103885254B (en) | 2014-03-12 | 2014-03-12 | Liquid crystal drip-injection control system, method and device |
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|---|---|---|---|
| CN201410090588.4A CN103885254B (en) | 2014-03-12 | 2014-03-12 | Liquid crystal drip-injection control system, method and device |
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| CN103885254B true CN103885254B (en) | 2017-03-01 |
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| CN108169965B (en) * | 2018-02-01 | 2020-07-31 | 京东方科技集团股份有限公司 | Liquid crystal dripping monitoring and recycling system and method and liquid crystal dripping equipment |
| CN111796459B (en) * | 2020-08-14 | 2021-07-09 | 深圳市微雪电子有限公司 | lcd device and method for manufacturing the same |
Citations (4)
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| US5029623A (en) * | 1989-04-07 | 1991-07-09 | Nokia Unterhaltungselektronik | Process for filling a liquid crystal cell |
| CN103399433A (en) * | 2013-08-14 | 2013-11-20 | 深圳市华星光电技术有限公司 | Liquid crystal drip irrigation device |
| CN103454790A (en) * | 2013-08-22 | 2013-12-18 | 合肥京东方光电科技有限公司 | Detector, liquid crystal drop filling system and liquid crystal drop filling control method |
| KR20140000445A (en) * | 2012-06-22 | 2014-01-03 | 하이디스 테크놀로지 주식회사 | Liquid crystal dispensing system using liquid crystal spreading control pattern and method of dispensing liquid crystal material using thereo |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3742000B2 (en) * | 2000-11-30 | 2006-02-01 | 富士通株式会社 | Press machine |
| US8851337B2 (en) * | 2012-08-20 | 2014-10-07 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Liquid crystal dropping device |
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2014
- 2014-03-12 CN CN201410090588.4A patent/CN103885254B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5029623A (en) * | 1989-04-07 | 1991-07-09 | Nokia Unterhaltungselektronik | Process for filling a liquid crystal cell |
| KR20140000445A (en) * | 2012-06-22 | 2014-01-03 | 하이디스 테크놀로지 주식회사 | Liquid crystal dispensing system using liquid crystal spreading control pattern and method of dispensing liquid crystal material using thereo |
| CN103399433A (en) * | 2013-08-14 | 2013-11-20 | 深圳市华星光电技术有限公司 | Liquid crystal drip irrigation device |
| CN103454790A (en) * | 2013-08-22 | 2013-12-18 | 合肥京东方光电科技有限公司 | Detector, liquid crystal drop filling system and liquid crystal drop filling control method |
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| CN103885254A (en) | 2014-06-25 |
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