CN101726933B - Spraying device and liquid crystal coating device with the same - Google Patents
Spraying device and liquid crystal coating device with the same Download PDFInfo
- Publication number
- CN101726933B CN101726933B CN2009101590113A CN200910159011A CN101726933B CN 101726933 B CN101726933 B CN 101726933B CN 2009101590113 A CN2009101590113 A CN 2009101590113A CN 200910159011 A CN200910159011 A CN 200910159011A CN 101726933 B CN101726933 B CN 101726933B
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- CN
- China
- Prior art keywords
- liquid crystal
- connecting pipe
- vibration
- coating head
- head unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
Abstract
The invention provides a spraying device and a liquid crystal coating device with the same. The liquid crystal coating device comprises: a main frame; a support station on the main frame; a coating head unit support frame movably connected with the main frame; a first drive unit for making the coating head unit support frame move; a second drive unit on the coating head unit support frame; and a spraying device connected with the coating head unit support frame and capable of moving by the second drive unit. The spraying device comprises: a support module capable of being movably connected with the coating head unit support frame; a cylinder module with a flow-in opening and a flow-out opening on its external surface, wherein the cylinder module is detachably connected with the support module; and a spraying unit for spraying the liquid crystal from the flow-out opening to a spraying unit on a mother plate.
Description
Technical field
The present invention relates to be used for the coating machine of liquid crystal discharge on the panel area that is defined on the motherboard.
Background technology
Liquid crystal is the intermediate state between crystalline solid state and isotropy liquid state, and combines some characteristic attribute of crystal structure and some characteristic attribute of deformable fluid.What LCD (LCD) utilized is exactly its flow of liquid crystal and the anisotropy relevant with its crystal characteristic.In portable phone, hand-held computer, both desktop monitors and LCD TV, can see application to LCD.
LCD comprises TFT (thin film transistor (TFT)) array base palte, colorful optical filter array substrate and is sandwiched in liquid crystal layer between them.
Be applied to voltage on the liquid crystal layer in each pixel by control, can allow light to pass, thereby constitute different GTGs with the amount that changes.
LC (liquid crystal) coating machine is used for being called as hereinafter coating of liquid crystalline on any one of the tft array substrate of " motherboard (M) " and colorful optical filter array substrate.
On motherboard, be limited with panel area.The LC coating machine is coated on the benchmark amount of liquid crystal on each panel area.
Figure 1A, 1B and 1C illustrate the traditional LC coating machine LC drop to be dropped in view on the panel area U that is defined on the motherboard from nozzle.
Shown in Figure 1A, LC drop D is from being positioned the nozzle N drippage of given panel area U top.
Shown in Figure 1B, the collision of LC drop and panel area causes its shape to change in moment.As a result, the some parts of LC drop is forced to be fragmented into fragment P.Simultaneously, air has occupied the position of these parts of LC drop, thereby is trapped within the remaining LC drop.
Shown in Fig. 1 C, fragment P ejects and drops on other position from panel area.
Fragment P can drop on the sealant pattern that is formed at panel area rectangle on every side.This can hinder two motherboards attached well each other during attached operation subsequently.Fragment P can drop on beyond the rectangular seal glue pattern.This can make panel area U not reach the benchmark amount of liquid crystal.
After this, being trapped in air A in the LC drop causes in being sandwiched in two liquid crystal layers between the motherboard and produces bubble.
After two motherboard M are attached to one another drop vestige S can appear on the LCD panel, because liquid crystal droplet drops on the panel area with bigger impact.
Summary of the invention
An object of the present invention is the brilliant drop of many dropping liquids that drippage equates with the benchmark amount of liquid crystal on each panel area that is defined on the motherboard.
Another object of the present invention is to prevent that air entrapment is in liquid crystal droplet.
Another purpose of the present invention is to prevent from the drop vestige to occur on the LCD panel after two motherboards are attached to one another.
According to an aspect of the present invention, provide a kind of liquid crystal coating, having comprised: main frame; Saddle, described saddle are arranged on the described main frame; The coating head unit scaffold, described coating head unit scaffold movably is connected to described main frame; First driver element, described first driver element move described coating head unit scaffold; Second driver element, described second driver element are arranged on the described coating head unit scaffold; And jetting system, described jetting system is connected to described coating head unit scaffold, can moves by described second driver element.
Described jetting system comprises: bearing assembly, described bearing assembly movably are connected to described coating head unit scaffold; Cylinder component, described cylinder component have inlet opening on its outer surface and flow out opening, and described cylinder component is attached to described bearing assembly with removably; And injection unit, described injection unit will be injected on the motherboard through the liquid crystal that described outflow opening is discharged.Described injection unit comprises: housing, and described housing has entrance and exit, and liquid crystal flows into described housing and sprays through described outlet through described inlet; Connecting pipe, described connecting pipe are connected between described inlet and the described outlet; Piezoelectric device, described piezoelectric device make described connecting pipe vibration; And cable, described cable is delivered to described piezoelectric device with electric current.The vibration of described connecting pipe causes the liquid crystal that flows in described connecting pipe to produce vibration, thereby makes liquid crystal be fragmented into the atomic little particle that discharges through described outlet.
To describing in detail below of the present invention, aforementioned and other purpose, feature, aspect and advantage of the present invention will become clearer from conjunction with the accompanying drawings.
Description of drawings
Provided of the present invention can further understanding, incorporate in this instructions simultaneously and the accompanying drawing that constitutes the part of this instructions shows embodiments of the present invention and is used for illustrating principle of the present invention with the text description part.
In the accompanying drawings:
Figure 1A, 1B and 1C illustrate the traditional LC coating machine LC drop to be dropped in view on the panel area U that is defined on the motherboard from nozzle.
Fig. 2 is the stereographic map according to the coating machine that is used for coating of liquid crystalline of embodiment of the present invention;
Fig. 3 is the view of jetting system as shown in Figure 2;
Fig. 4 is the vertical cross-section figure of cylinder component as shown in Figure 3;
Fig. 5 illustrates pipe to be connected in view between the outflow opening in injection unit and the cylinder component;
Fig. 6 is the front elevation of injection unit as shown in Figure 5;
Fig. 7 illustrates injection unit liquid crystal is injected in view on the panel area;
Fig. 8 is the view that illustrates on four zones that the liquid crystal that sprays by injection unit drops on each panel area among four panel area U that are defined on the motherboard.
Embodiment
Below in detail with reference to preferred implementation of the present invention, the example of preferred implementation shown in the drawings.
Fig. 2 is the stereographic map according to the coating machine that is used for coating of liquid crystalline of embodiment of the present invention.Fig. 3 is the view of jetting system 190 as shown in Figure 2.
Shown in Fig. 2 and 3, the coating machine that is used for coating of liquid crystalline comprises main frame 100, saddle 110, coating head unit scaffold 130, first driver element 140, second driver element 150 and jetting system 190.
The xsect of first guide member 161 is quadrilaterals.
Coating head unit scaffold 130 is arranged on the upside of main frame 100 movably, and its set-up mode is across saddle 110.Coating head unit scaffold 130 is provided with jetting system 190.
Second guide unit 170 comprises two second guide members 171 and is connected to two second slide blocks 172 of two described second guide members 171 respectively slidably.Two second guide members 171 are connected to main frame 100 in the mode of opening spaced in parallel to each other.
The xsect of second guide member 171 is quadrilaterals.Second guide member is arranged as parallel to each other.The longitudinally of second guide member 171 is along Y direction.
Coating head unit scaffold 130 comprises level body 131 and is connected to two vertical bodies 132 at the two ends of described level body respectively.
Two coating head unit scaffolds 130 can be arranged at main frame 100 movably.
Coating head unit scaffold 130 is provided with one or more jetting system 190.Jetting system 190 is connected to coating head unit scaffold 130 by the 3rd guide unit 180.Jetting system 190 can move by the 3rd guide unit 180.
The 3rd guide unit 180 comprises the 3rd guide member 181 and the 3rd slide block 182.The 3rd guide member 181 is connected to a side of level body 131.The 3rd slide block 182 is connected to the 3rd guide member 181 respectively.The xsect of the 3rd guide member 181 is rectangles.The 3rd guide member 181 is parallel to each other.The 3rd guide member 181 is arranged on the level body 131 along the longitudinally identical with level body 131.
Coating head unit scaffold 130 is provided with second driver element 150.Second driver element 150 moves jetting system 190.
The 3rd slide block 182 is provided with the bearing assembly 200 of forming jetting system 190.
Fig. 4 is the vertical cross-section figure of cylinder component as shown in Figure 3.
Shown in Fig. 3 and 4, jetting system 190 comprises bearing assembly 200, cylinder component 300, piston 400, LC (liquid crystal) feed unit 500, rotary drive unit 700, linear drive unit 800 and injection unit 900.
Second supporting member 220 of the bottom side that bearing assembly 200 comprises first supporting member 210 that is connected to the 3rd slide block 182, be connected to described first supporting member 210 and be connected to the supporting shell 230 of described second supporting member 220.
Second supporting member 220 makes the supporting shell 230 and first supporting member 210 keep separated from one another.
Supporting shell 230 comprise the back plate 232 that is positioned at sidepiece with hole 231, respectively be connected to back plate 232 two lateral side side direction plate 233 and be connected to the bottom member 234 of the bottom side of back plate 232.
Be provided with the cover piece 340 that covers piston hole 321 in the bottom side of cylinder 320.
By inserting bolt 241 in the recessed channels 311 respectively and nut 242 being screwed on the end of bolt 241 and cylinder seat 310 is attached to bottom member 234.Thereby, cylinder seat 310 is fixed on the joint unit 240.
By respectively nut 242 being screwed out and bolt 241 is separated with recessed channel 311 and cylinder seat 310 is separated bottom member 234 from bolt 241.Thereby, cylinder seat 310 is deviate from from joint unit 240.
In the piston hole 321 that piston 400 inserts in the cylinder 320.
When groove 430 during towards inlet opening 322, inlet opening 322 is opened, and flows out opening 323 this moment and close.When groove 430 when flowing out opening 323, flowed out opening 323 and open, and inlet opening 322 was closed this moment.
The inlet opening 322 that LC (liquid crystal) feed unit 500 is connected in the cylinder 320.
The connecting portion 420 of piston 400 removably is attached to the axle 705 of rotary drive unit 700.By connecting portion 420 being attached to axle 705, rotary drive unit 700 makes piston 400 rotations.
Supporting shell 230 is provided with linear drive unit 800.Linear drive unit 800 moves up and down rotary drive unit 700.
As shown in Figure 7, the liquid crystal through flowing out opening 323 discharges is injected on the motherboard M by injection unit 900.
Fig. 5 illustrates pipe to be connected in view between the outflow opening in injection unit and the cylinder component.
As shown in Figure 5, pipe 990 is connected in injection unit 900 and flows out between the opening 323, and injection unit 900 is arranged on the support plate 980.As shown in Figure 3, support plate 980 is connected to bearing assembly 200.
Fig. 6 is the front elevation of injection unit as shown in Figure 5.Fig. 7 illustrates injection unit liquid crystal is injected in view on the panel area.
Shown in Fig. 6 and 7, injection unit 900 comprises housing 910, connecting pipe 920, piezoelectric device 930, cable 940, first vibration-absorbing body 951 and second vibration-absorbing body 952.Housing 910 comprises inlet 911 and outlet 912, and wherein liquid crystal sprays through these inlet 911 inflow housings 910 and through this outlet 912.Connecting pipe 920 is connected between inlet 911 and the outlet 912.Piezoelectric device 930 makes connecting pipe 920 vibrations.Cable 940 is delivered to piezoelectric device 930 with electric current.First vibration-absorbing body 951 is between connecting pipe 920 and inlet 911.Second vibration-absorbing body 952 is between connecting pipe 920 and outlet 912.
The piezoelectric device 930 that is the ring form inserts in the housing 910 also around connecting pipe 920.Piezoelectric device 930 can be realized in any form, as long as it can make connecting pipe 920 vibrations.When applying electric field, piezoelectric device 930 produces mechanical stress, makes connecting pipe 920 vibrations thus.
The power frequency that is supplied to piezoelectric device 930 through cable 940 becomes high more, and then connecting pipe 920 vibrates frequently more.Connecting pipe 920 can be with the frequency vibration greater than 20KHz.
The vibration of connecting pipe 920 causes the liquid crystal L that flows in connecting pipe 920 to produce vibration.This makes liquid crystal L be fragmented into very small particle C.
As a result, liquid crystal L sprays through exporting 912.
First vibration-absorbing body 951 and second vibration-absorbing body 952 prevent that housing 910 from producing vibration during the vibration of connecting pipe 920.First vibration-absorbing body 951 and second vibration-absorbing body 952 can be set.In this case, housing 910 equally also vibrates.First absorber 951 and second absorber 952 can be made by the rubber that can absorb vibration.
Describe below liquid crystal is injected in operation on the panel area that is defined in motherboard.
Shown in Fig. 3 and 4, rotary drive unit 700 rotary-pistons 400 make the inlet opening 322 of groove 430 in the cylinder in the piston 400.In case groove 430 is towards inlet opening 322, rotary drive unit 700 piston 400 that promptly stops the rotation.
Suck the space and be in piston hole 321 space that the upside by the bottom side of piston and cover piece 340 forms.Piston 400 moves up highly more, and the pressure that then sucks in the big more and piston hole 321 in space becomes more little.This pressure differential between cylinder is inside and outside makes the liquid crystal in the bottle 520 suck the space through first pipe 530 and inlet opening 322 inflows.
In case piston 400 moves up to set a distance, linear drive unit 800 promptly stops the piston 400 that moves up.Then, rotary drive unit 700 rotary-pistons 400 make the outflow opening 323 of groove 430 in the cylinder 320 in the piston 400.
In case groove 430 is towards flowing out opening 323, rotary drive unit 700 piston 400 that promptly stops the rotation.
As shown in Figure 7, through flow out liquid crystal that opening 323 discharges through manage 990 and injection unit 900 in inlet 911 flow into connecting pipes 920.
When applying electric field, piezoelectric device 930 produces mechanical stress, thereby makes connecting pipe 920 with the frequency vibration greater than 20KHz.
The vibration of connecting pipe 920 causes the liquid crystal L that flows in connecting pipe 920 to produce vibration.This makes liquid crystal L be fragmented into very small particle C.
As shown in Figure 7, the very small particle C of liquid crystal drops on the panel area U through exporting 912.
Fig. 8 is the view that illustrates on four zones that the liquid crystal that sprays by injection unit drops on each panel area among four panel area U that are defined on the motherboard.
As shown in Figure 8, the very small particle C of liquid crystal L places on four zones of four each panel areas of panel area U.
The very small particle of liquid crystal is less than liquid crystal droplet from the possibility that panel area ejects, because the weight of described particle is much smaller than the weight of liquid crystal droplet.These all very small particles of having guaranteed each panel liquid crystal all drop on the panel area.That is to say that the very small particle of liquid crystal can not drop on such as other positions such as sealing (glue) patterns.Therefore, the needs that the liquid crystal deficiency is compensated have been eliminated.And, after two motherboards are attached to one another, the drop vestige can not appear, because the very small particle of liquid crystal drops on the panel area with much smaller impact on the LCD panel.
Do not deviate from spirit of the present invention or intrinsic propesties owing to can implement the present invention in a number of ways, therefore it should also be understood that, above-mentioned embodiment is not limited to previously described any details, except as otherwise noted, but, should do wide in range explanation as being defined in the spirit and scope of the present invention in the claims, therefore, interior all changes and the remodeling of boundary equivalency interior or this boundary that falls into claim all will be contained by claims.
Claims (5)
1. jetting system comprises:
Cylinder component, described cylinder component have inlet opening and flow out opening; And
Injection unit, described injection unit will be injected on the motherboard through the liquid crystal that described outflow opening is discharged,
Wherein, described injection unit comprises:
Housing, described housing has entrance and exit, and liquid crystal flows into described housing and sprays through described outlet through described inlet;
Connecting pipe, described connecting pipe are connected between described inlet and the described outlet;
Piezoelectric device, described piezoelectric device make described connecting pipe vibration; And
Cable, described cable is delivered to described piezoelectric device with electric current,
And the vibration of described connecting pipe causes the liquid crystal that flows in described connecting pipe to produce vibration, thereby makes liquid crystal be fragmented into the atomic little particle that discharges through described outlet.
2. jetting system according to claim 1, wherein, the power frequency that is supplied to described piezoelectric device through described cable becomes high more, and then the vibration frequency of described connecting pipe is high more.
3. jetting system according to claim 2, wherein, described connecting pipe is with the frequency vibration greater than 20KHz.
4. jetting system according to claim 1 further comprises: first vibration-absorbing body between described connecting pipe and described inlet; And second vibration-absorbing body between described connecting pipe and described outlet.
5. liquid crystal coating comprises:
Main frame;
Saddle, described saddle are arranged on the described main frame;
The coating head unit scaffold, described coating head unit scaffold movably is connected to described main frame;
First driver element, described first driver element move described coating head unit scaffold;
Second driver element, described second driver element are arranged on the described coating head unit scaffold; And
Jetting system, described jetting system are connected to described coating head unit scaffold, can move by described second driver element, and described jetting system comprises:
Bearing assembly, described bearing assembly movably are connected to described coating head unit scaffold;
Cylinder component, described cylinder component have inlet opening on its outer surface and flow out opening, and described cylinder component is attached to described bearing assembly with removably; And
Injection unit, described injection unit will be injected on the motherboard through the liquid crystal that described outflow opening is discharged,
Wherein, described injection unit comprises:
Housing, described housing has entrance and exit, and liquid crystal flows into described housing and sprays through described outlet through described inlet;
Connecting pipe, described connecting pipe are connected between described inlet and the described outlet;
Piezoelectric device, described piezoelectric device make described connecting pipe vibration; And
Cable, described cable is delivered to described piezoelectric device with electric current,
And the vibration of described connecting pipe causes the liquid crystal that flows in described connecting pipe to produce vibration, thereby makes liquid crystal be fragmented into the atomic little particle that discharges through described outlet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2008-0107414 | 2008-10-30 | ||
| KR1020080107414A KR101502867B1 (en) | 2008-10-30 | 2008-10-30 | Head apparatus and liqiud crystal dispenser having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101726933A CN101726933A (en) | 2010-06-09 |
| CN101726933B true CN101726933B (en) | 2011-12-14 |
Family
ID=42275092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101590113A Expired - Fee Related CN101726933B (en) | 2008-10-30 | 2009-07-29 | Spraying device and liquid crystal coating device with the same |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101502867B1 (en) |
| CN (1) | CN101726933B (en) |
| TW (1) | TWI386254B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102011753B1 (en) * | 2012-05-21 | 2019-08-19 | 주식회사 탑 엔지니어링 | Liquid Crystal Discharge Nozzle Assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3916898B2 (en) * | 2001-08-10 | 2007-05-23 | シャープ株式会社 | Manufacturing method of liquid crystal panel, manufacturing apparatus and manufacturing system thereof |
| TWI231774B (en) * | 2001-10-17 | 2005-05-01 | Musashi Engineering Inc | Delivering method and apparatus of liquid material |
| KR100700176B1 (en) * | 2002-12-18 | 2007-03-27 | 엘지.필립스 엘시디 주식회사 | Dispenser of liquid crystal display panel and method for controlling gap between substrate and nozzle using the same |
| TW587019B (en) * | 2003-07-25 | 2004-05-11 | Tzung-Shing Liu | Liquid droplet injection control system integrating surface tension micro-valve |
| JP3884443B2 (en) * | 2004-03-19 | 2007-02-21 | オリンパス株式会社 | Liquid dispensing apparatus, liquid dispensing method, and liquid discharge head |
| JP4854240B2 (en) | 2005-09-09 | 2012-01-18 | 株式会社オプトニクス精密 | Ultrafine particles by pressure vibration and spray granulation |
| KR20070073478A (en) * | 2006-01-05 | 2007-07-10 | 삼성전자주식회사 | Apparatus of dropping liquid crystal |
-
2008
- 2008-10-30 KR KR1020080107414A patent/KR101502867B1/en active IP Right Grant
-
2009
- 2009-07-17 TW TW098124211A patent/TWI386254B/en not_active IP Right Cessation
- 2009-07-29 CN CN2009101590113A patent/CN101726933B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW201016322A (en) | 2010-05-01 |
| KR101502867B1 (en) | 2015-03-18 |
| KR20100048317A (en) | 2010-05-11 |
| CN101726933A (en) | 2010-06-09 |
| TWI386254B (en) | 2013-02-21 |
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