CN1769969A - System and method for manufacturing a liquid crystal display device - Google Patents
System and method for manufacturing a liquid crystal display device Download PDFInfo
- Publication number
- CN1769969A CN1769969A CNA2005101100008A CN200510110000A CN1769969A CN 1769969 A CN1769969 A CN 1769969A CN A2005101100008 A CNA2005101100008 A CN A2005101100008A CN 200510110000 A CN200510110000 A CN 200510110000A CN 1769969 A CN1769969 A CN 1769969A
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- China
- Prior art keywords
- liquid crystal
- valve
- actuator
- power source
- pressurizer
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
- G02F1/13415—Drop filling process
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mathematical Physics (AREA)
Abstract
A system for manufacturing a liquid crystal display device includes a vessel storing liquid crystal (LC), a nozzle for dropping the LC onto a liquid crystal display panel, a pressurizer configured to draw a predetermined amount of the LC from the vessel and discharge the drawn LC into the nozzle, and a valve alternately communicating the pressurizer with the vessel or with the nozzle.
Description
Technical field
The present invention relates to be used to make the system and method for liquid crystal indicator, especially, relate to and be used for liquid crystal (LC) is dropped onto apparatus and method on the display panel.
Background technology
Usually, liquid crystal indicator comprises display panel and following display panel, and each comprises a generation electrode, and is arranged on the liquid crystal layer between the display panel up and down.The liquid crystal molecule of liquid crystal layer is settled again by the supply voltage that produces electrode of showing up.Light changes by the layout of the transmissivity response liquid crystal molecule of liquid crystal layer.Like this, showing up by supply produces the voltage of electrode, and image is displayed on the LCD by the transmissivity of control light by liquid crystal layer.
Such liquid crystal indicator is made by process as described below.At first, the oriented layer that is used for the aligned liquid-crystal molecule is coated on down display panel.Secondly, active region is limited at down in the closed annular shape on the display panel by applying sealant.The 3rd, liquid crystal (LC) drops onto on the active region.The 4th, upper and lower display panel is assembled in the state of vacuum, hardening seal.
Traditional device that is used to make the drippage LC of liquid crystal indicator will be elaborated below.
Traditional device that is used to drip LC comprises the bottle of filling LC, directly LC is dropped onto down the syringe on the display panel, and opening/closing is formed on the pin of the nozzle on the syringe.
But, making the legacy system of liquid crystal indicator according to such being used to, the LC in the syringe flows to down on the display panel by gravity, and does not have independent compression tools.Correspondingly, dropleting speed is slack-off, and the amount of the LC of drippage can not be accurately controlled.
Summary of the invention
The system that the present invention uses for the flat display devices of the advantage of the accurate control of the drainage that a kind of manufacturing is provided has higher liquid crystal (LC) dropleting speed and LC.
The canonical system that is used to make liquid crystal indicator according to an exemplary embodiment of the present invention comprises the container of storing LC, be used for LC is dropped onto nozzle on the display panels, be configured to from the pressurizer (pressurizer) of the LC of container suction scheduled volume, and the LC that is sucked is discharged in the nozzle, and valve, described valve alternately (alternatively) is communicated with between pressurizer and one of container and nozzle.
The other canonical system that is used to make display panels according to an exemplary embodiment of the present invention comprises the container of storing LC, is used for LC is dropped onto nozzle on the display panels and pump.Described pump is configured to from the LC of container suction scheduled volume and with the LC that is aspirated and is discharged into the nozzle.Described pump comprises pressurizer, valve and valve actuator.Pressurizer suction and discharging LC.Valve alternately is connected pressurizer with one of container and nozzle.Valve actuator and pressurizer cooperative operation are to drive described valve.
The typical method that being used to according to an exemplary embodiment of the present invention made liquid crystal indicator comprises: display panels is provided, operation by pressurizer fills the LC of scheduled volume with (charge) from container to cylinder (cylinder), described cylinder is provided to pressurizer, and the LC that fills is stored in the described cylinder; To be stored in LC and be discharged in the nozzle, and the LC that is discharged will be dropped onto on the display panels.
Description of drawings
These and/or others of the present invention will become apparent and be more readily understood from following embodiment and description taken in conjunction with the accompanying drawings, wherein:
Fig. 1 is the synoptic diagram of system that is used to make display panels according to an exemplary embodiment of the present invention;
Fig. 2 is the viewgraph of cross-section of being got along line II-II among Fig. 1;
Fig. 3 has shown that liquid crystal wherein is sucked in the cylinder occupied state in the system of the manufacturing usefulness of the liquid crystal indicator shown in Fig. 1;
Fig. 4 has shown that as shown in fig. 1 wherein liquid crystal makes the release conditions of the system of liquid crystal indicator from cylinder being used to of discharging; And
Fig. 5 has shown to be used to make the process flow diagram of the method for liquid crystal indicator according to an exemplary embodiment of the present invention.
Embodiment
Now will describe with reference to embodiments of the invention and accompanying drawing in detail, wherein similar reference number is quoted similar parts.With reference to the accompanying drawings embodiments of the invention are elaborated.
Fig. 1 is the synoptic diagram of system that is used to make liquid crystal indicator according to an exemplary embodiment of the present invention; And Fig. 2 is the viewgraph of cross-section that the line II-II in Fig. 1 is got.
As shown in Figure 1, be used to make the system that liquid crystal indicator according to an exemplary embodiment of the present invention uses and comprise liquid crystal (LC) container 100, LC nozzle 200, and LC pump 300.
The mode of operation of LC pressurizer 310 responding systems sucks or discharging LC.LC pressurizer 310 further comprises the cylinder 311 that is used for the LC that interim storage is inhaled into, and is arranged on the piston 312 in the cylinder 311 movably, and the reciprocating stepper motor 313 of control piston 312 accurately.Valve 320 make cylinder 311 can with LC container 100, perhaps be connected with LC nozzle 200, this depends on the mode of operation of described system.
Especially, valve 320 comprises the housing 321 with circular cross section, centers on the valve body 322 of the center rotation of housing 321, and the passage 323 that extends radially inwardly to the center of sending out body 322.In typical embodiment, the number of passage 323 is 3, and each passage 323 is set up adjacent one another are, and strides across the arc of about 120 degree within valve body 322.
Underground 333 hydraulic pressure in self-hydraulic source 331 in the future is directed in the actuator 332 or will be directed in the hydraulic power source 331 from the hydraulic pressure of actuator 333.Underground 333 comprises the first, second, third and the 4th underground 333a, 333b, 333c, 333d.To actuator 332, the second and the 4th underground 333b, 333d will guide in the hydraulic power source 331 from the hydraulic pressure of housing 321 from the hydraulic pressure of hydraulic power source 331 in the first and the 3rd underground 333a and 333c guiding.Correspondingly, if above-mentioned LC pump 300 is provided, the LC amount on the display panels P of dropping onto is accurately controlled and dropleting speed can increase.
It is to make underground 333 is connected to hydraulic power source 331 simultaneously that the first, second, third and the 4th underground 333a, 333b, 333c, 333d are installed to head 334.Like this,, can reduce the change time, and the operation rate of system improves as a result when LC is changed.LC must be changed, because dissimilar LC is used according to the pattern such as vertical alignment mode and horizontal alignment pattern.Change all parts that LC that LC need change the front that is useful on uses.
In order to reduce the change time of LC, the system that LCD is according to an exemplary embodiment of the present invention made in above-mentioned being used to is considered to preferred.
In addition, as shown in Figure 2, preferably, head 334 is connected by linkage unit 335 removedly with hydraulic power source 331.Linkage unit 335 comprises the patchhole 335a that is arranged on the hydraulic power source 331 and is arranged on projection pipe 335b on the head 334.The number of patchhole 335a equals the number of hydraulic tube 333, and the number that is arranged on the projection pipe 335b on the head 334 equals the number of patchhole 335a.Projection pipe 335b is connected with underground 333.In order simultaneously hydraulic power source 331 to be connected to underground 333, head 334 is placed near hydraulic power source 331, and projection is managed 335b and is complementary with corresponding patchhole 335a like this.
After this method that is used to make liquid crystal indicator according to an exemplary embodiment of the present invention will be elaborated with reference to Fig. 3-5.
Fig. 3 has shown the occupied state of the system that is used to make liquid crystal indicator as shown in Figure 1, and wherein liquid crystal is sucked in the cylinder 311.Fig. 4 has shown the release conditions of the system that is used to make LCD as shown in Figure 1, and wherein liquid crystal discharges from cylinder 311.Fig. 5 has shown the method that is used to make LCD according to an exemplary embodiment of the present invention.Fill and release conditions each be the example that is used to make the mode of operation of liquid crystal indicator.
The method that is used for making liquid crystal indicator according to an exemplary embodiment of the present invention is included in the display panels that is provided for liquid crystal indicator on the square frame S5 of Fig. 5.In the process of the state of filling, on square frame S10, the LC of scheduled volume is filled into the cylinder 311 from LC container 100 by LC being drawn in the cylinder 311 by LC pressurizer 310.On square frame S20, the LC that is filled in the cylinder 311 is temporarily stored in the cylinder 311.In the process of the state that discharges, on square frame S30, the LC that is stored in the cylinder 311 is released to LC nozzle 200.On square frame S40, the LC that is discharged into LC nozzle 200 drops onto on the display panels P.In addition, preferably, the bubble that is contained among the LC was removed before LC container 100 is filled into cylinder 311 at the LC of scheduled volume.
The LC that is drawn into the scheduled volume in the cylinder 311 accurately controls by the stepper motor that is set to LC pressurizer 310.Preferably the LC of scheduled volume approximately is the LC that 2cc arrives about 3cc, and this approximate weight is that 1mg is to about 3mg.
In addition, the manufacture method of liquid crystal indicator according to an exemplary embodiment of the present invention further comprises: LC container 100 is connected with cylinder 311 or with LC nozzle 200, and this depends on mode of operation.After this connection of LC container 100 describes with reference to Fig. 3,4.
At first, as shown in Figure 3, be fed into housing 321 and be discharged into hydraulic power source 331 by the second underground 333b by the 3rd underground 333c, cause actuator 332 to turn clockwise from housing 321 from the hydraulic pressure of hydraulic power source 331.The rotation of response actuator 332 is connected to valve body 322 rotations of actuator 332.The rotation of valve body 332 make each passage 323 with first the pipe 101 between the order be communicated with., be stopped sequentially with first pipe 101 of LC container 100 and with after cylinder 311 orders are communicated with at the passage 323 of valve body 322 from the supply of the hydraulic pressure of hydraulic power source 331.After this, the piston 312 that response is sucked by stepper motor 313 on the indicated direction of arrow 314, the LC in the LC container 100 is sucked in 311 by passage 323, fills cylinder 311 thus.
The second, as shown in Figure 4, the hydraulic pressure of hydraulic power source 331 supplies to housing 321 by the first underground 333a and is discharged into the hydraulic power source 331 from housing 321 by the 4th underground 333d, causes actuator 332 counterclockwise.The rotation of response actuator 332 is connected to valve body 322 rotations of actuator 332.The rotation of valve body 332 make each passage 323 with second the pipe 201 between the order be communicated with.When passage 323 order of valve body 322 is communicated with second pipe 201 of LC nozzle 200 and with cylinder 311, be stopped from the supply of the hydraulic pressure of hydraulic power source 331.After this, response piston 312 is being promoted by stepper motor 313 by arrow 315 indicated directions, and the LC in the cylinder 311 is discharged in the LC nozzle 200 by passage 323.After this LC is dropped on the display panels P of liquid crystal indicator.
In addition, when LC was changed, as shown in Figure 2, head 334 was moved, and projection pipe 335b separates from patchhole 335a like this, and the projection pipe of the head of new system is inserted among the patchhole 335a of pressure source 331 simultaneously then.
As illustrated, the system and method that being used to according to an exemplary embodiment of the present invention made liquid crystal indicator has following advantage.The LC amount that is dropped onto on the display panels can be accurately controlled, and the speed of drippage increases by set LC pressurizer.In addition, because linkage unit is provided, the change time of LC is reduced.As a result, the operation rate of system can significantly improve.
Although present invention has been described with reference to preferred embodiments, those of ordinary skill is appreciated that under the situation that does not deviate from the spirit and principles in the present invention and can makes amendment and change the present invention that its scope is limited by appended claims.
Claims (19)
1. system that is used to make liquid crystal indicator comprises:
The container of storage liquid crystal;
Be used for LC is dropped onto nozzle on the display panels;
Pressurizer, described pressurizer are configured to suck the liquid crystal from the scheduled volume of container, and the liquid crystal that is sucked is discharged in the nozzle; And
Valve, described valve alternately are communicated with between pressurizer and one of container and nozzle.
2. system according to claim 1 is characterized in that, the liquid crystal pressurizer comprises:
Cylinder, the liquid crystal that the interim storage of described cylinder is sucked;
Piston, described piston is slidably disposed in the cylinder; And
Stepper motor, described stepper motor can be operated the to-and-fro movement that is connected with control piston with piston.
3. system according to claim 1 is characterized in that, described valve comprises:
The housing of circular shape;
Valve body, described valve body are configured to the center rotation around housing; And
Be arranged on the passage on the valve body.
4. system according to claim 3 is characterized in that, valve body comprises three passages, and each of three passages is set up adjacent one another are, and one of such three passages stride across the space of about 120 degree arcs within valve body.
5. system according to claim 3 is characterized in that, also comprises the valve actuator of driver's valve, described valve actuator and pressurizer cooperative operation.
6. system according to claim 5 is characterized in that valve actuator comprises:
Hydraulic power source;
Actuator is with valve body machinery connection mutually, the hydraulic-driven valve body that actuator response is supplied with by hydraulic power source; And
Underground, described the underground hydraulic pressure in self-hydraulic source in the future are provided to actuator, and will turn back to hydraulic power source from the hydraulic pressure of actuator.
7. system according to claim 6 is characterized in that, underground is installed on the head so that underground is connected to hydraulic power source simultaneously.
8. system according to claim 7 is characterized in that head and hydraulic power source are connected to each other by linkage unit removedly.
9. system according to claim 8 is characterized in that linkage unit comprises:
Be arranged on the patchhole in the hydraulic power source, the number of patchhole equals the number of underground; And
The projection pipe, described protruding pipe is arranged on the head, and the number of protruding pipe equals the number of patchhole, and the projection pipe is connected with underground.
10. system that is used to make liquid crystal indicator comprises:
The container of storage liquid crystal;
Be used for liquid crystal drop is fallen nozzle on the display panels; And
Pump, described pump are arranged between container and the nozzle, and pump is configured to from the liquid crystal of container suction scheduled volume and with the liquid crystal that is inhaled into and is discharged into the nozzle,
Wherein said pump comprises:
Pressurizer, described pressurizer are used for sucking and discharging liquid crystal;
Valve, described valve alternately are connected pressurizer with one of container and nozzle; And
Valve actuator, described valve actuator and pressurizer cooperative operation are to drive described valve.
11. a method that is used to make liquid crystal indicator comprises:
Display panels is provided;
Operation by pressurizer will be filled in the cylinder from the liquid crystal of the scheduled volume of container, and described cylinder is set on the pressurizer;
The liquid crystal that storage is filled in cylinder;
Liquid crystal to be stored is discharged in the nozzle; And
D/d liquid crystal drop is fallen on the display panels.
12. method according to claim 11 also comprises: before will being filled into cylinder, remove the bubble that is contained in the liquid crystal from the liquid crystal of the scheduled volume of container.
13. method according to claim 11 is characterized in that, the liquid crystal of scheduled volume is controlled by the stepper motor that is provided on the pressurizer.
14. method according to claim 11 is characterized in that, the liquid crystal of scheduled volume approximately is that 2cc is to about 3cc.
15. method according to claim 11 is characterized in that, also comprises alternately cylinder is connected with one of container and nozzle.
16. method according to claim 15 is characterized in that, cylinder is connected with container to be comprised:
By the valve actuator rotary valve;
Response provides the passage stop valve driver of the valve of connection between container and cylinder.
17. method according to claim 15 is characterized in that, cylinder is connected with nozzle to be comprised:
By the valve actuator rotary valve; And
Response provides the passage stop valve driver of the valve of connection between cylinder and nozzle.
18. method according to claim 16 is characterized in that, described valve actuator comprises:
Hydraulic power source;
Actuator, described actuator is communicated with the hydraulic-driven valve body that actuator response is supplied with by hydraulic power source with the valve body machinery of valve; And
Underground, described the underground hydraulic pressure in self-hydraulic source in the future provide to actuator, and will turn back to hydraulic power source from the hydraulic pressure of actuator;
Wherein when liquid crystal was changed, underground removed from hydraulic power source immediately by head.
19. method according to claim 17 is characterized in that, valve actuator comprises:
Hydraulic power source;
Actuator, described actuator is communicated with the hydraulic-driven valve body that actuator response is supplied with by hydraulic power source with the valve body machinery of valve; And
Underground, described the underground hydraulic pressure in self-hydraulic source in the future provide to actuator, and will turn back to hydraulic power source from the hydraulic pressure of actuator;
Wherein when liquid crystal was changed, underground removed from hydraulic power source immediately by head.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040089000A KR20060039782A (en) | 2004-11-03 | 2004-11-03 | Method and apparatus of dropping liquid crystalon substrate |
| KR1020040089000 | 2004-11-03 | ||
| KR1020040109639 | 2004-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1769969A true CN1769969A (en) | 2006-05-10 |
Family
ID=36751358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101100008A Pending CN1769969A (en) | 2004-11-03 | 2005-09-21 | System and method for manufacturing a liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20060039782A (en) |
| CN (1) | CN1769969A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561593B (en) * | 2008-04-17 | 2011-02-16 | 北京京东方光电科技有限公司 | Method for liquid crystal display panel continuously and uniformly dripping off liquid crystal and device thereof |
| WO2014139250A1 (en) * | 2013-03-15 | 2014-09-18 | 京东方科技集团股份有限公司 | Oriented film printing device |
| CN105934705A (en) * | 2014-01-23 | 2016-09-07 | 堺显示器制品株式会社 | Liquid crystal dropping apparatus and method for manufacturing liquid crystal display device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100909900B1 (en) * | 2009-02-25 | 2009-07-30 | 주식회사 탑 엔지니어링 | Liquid crystal dispenser |
-
2004
- 2004-11-03 KR KR1020040089000A patent/KR20060039782A/en not_active Application Discontinuation
-
2005
- 2005-09-21 CN CNA2005101100008A patent/CN1769969A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561593B (en) * | 2008-04-17 | 2011-02-16 | 北京京东方光电科技有限公司 | Method for liquid crystal display panel continuously and uniformly dripping off liquid crystal and device thereof |
| WO2014139250A1 (en) * | 2013-03-15 | 2014-09-18 | 京东方科技集团股份有限公司 | Oriented film printing device |
| US9242266B2 (en) | 2013-03-15 | 2016-01-26 | Boe Technology Group Co., Ltd. | Alignment film printing device |
| CN105934705A (en) * | 2014-01-23 | 2016-09-07 | 堺显示器制品株式会社 | Liquid crystal dropping apparatus and method for manufacturing liquid crystal display device |
| US9772524B2 (en) | 2014-01-23 | 2017-09-26 | Sakai Display Products Corporation | Liquid crystal dropping device and method of manufacturing liquid crystal display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060039782A (en) | 2006-05-09 |
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