CN100336241C - Organic EL coating device and method - Google Patents
Organic EL coating device and method Download PDFInfo
- Publication number
- CN100336241C CN100336241C CNB031465471A CN03146547A CN100336241C CN 100336241 C CN100336241 C CN 100336241C CN B031465471 A CNB031465471 A CN B031465471A CN 03146547 A CN03146547 A CN 03146547A CN 100336241 C CN100336241 C CN 100336241C
- Authority
- CN
- China
- Prior art keywords
- organic
- nozzle
- coating
- filter
- aperture
- 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
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 201
- 239000011248 coating agent Substances 0.000 title claims abstract description 197
- 238000000034 method Methods 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims abstract description 98
- 239000007788 liquid Substances 0.000 claims abstract description 93
- 239000000758 substrate Substances 0.000 claims abstract description 53
- 238000005192 partition Methods 0.000 claims description 28
- 238000011068 loading method Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 5
- 239000011344 liquid material Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000008859 change Effects 0.000 description 21
- 238000001879 gelation Methods 0.000 description 17
- 239000007921 spray Substances 0.000 description 16
- 239000011521 glass Substances 0.000 description 14
- 239000012530 fluid Substances 0.000 description 12
- 230000015654 memory Effects 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical class COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000553 poly(phenylenevinylene) Polymers 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 2
- -1 polyphenylene Polymers 0.000 description 2
- UOHMMEJUHBCKEE-UHFFFAOYSA-N prehnitene Chemical compound CC1=CC=C(C)C(C)=C1C UOHMMEJUHBCKEE-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920006361 Polyflon Polymers 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229920000109 alkoxy-substituted poly(p-phenylene vinylene) Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002220 fluorenes Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
- H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
- H10K71/135—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing using ink-jet printing
Abstract
To suppress clogging of a nozzle to stably inject a liquid material and to increase the working efficiency of a (organic EL) coating device equipped with the nozzle to eject a coating liquid or an organic EL material onto a substrate. The inner space SP of a nozzle body 41 constituting the nozzle 4a functions as a passage to pass an organic EL material. A filter 43 is disposed in the inner position on the passage and apart from the orifice 45a disposed at the top end of the nozzle. The filter 43 has filtering accuracy of 10 [mu]m and collects foreign matters and a gelled substance to prevent from reaching to the orifice 45a. Thus, clogging of the orifice 45a due to foreign matters or the like can be surely prevented.
Description
Technical field
The present invention relates to organic EL (electroluminescence) material spue organic EL coating device and method to substrates such as glass substrate.
Background technology
This organic EL coating device has: take out the pump that is stored in the organic EL Material in the supply source; With the nozzle that will spue towards the groove that is formed on the substrate by the organic EL Material that pump spues from above-mentioned supply source by pipeline.Organic EL Material spues towards substrate from nozzle.
Organic EL Material dissolves high molecular dissolved matter in organic solvent makes, and has by the pressure rising to make the macromolecule dissolution thing in the organic EL Material have the characteristic of gelation.Because like this, can make spray nozzle clogging, sometimes can not be from the nozzle organic EL Material that stably spues.As the spue main cause of stability of reduction, be not only pressure, also have coating conditions such as the flow of organic EL Material and viscosity.According to the coating condition, use existing nozzle, then sometimes can not be from the nozzle organic EL Material that stably spues.Therefore, hope can have and the characteristic of organic EL Material and the nozzle arrangements of coating condition adaptation.But at present, the nozzle of the organic EL Material that spues is not considered especially that therefore can not stably spue organic EL Material and apply organic EL Material well.
Summary of the invention
The present invention considers the problems referred to above and proposes, its objective is to provide a kind of can be often stably from nozzle with organic EL Material spue organic EL coating device and method to substrate.
Organic EL coating device of the present invention has nozzle, the coating liquid that this nozzle can spue and contain organic EL Material to substrate from the aperture that is located at its front end, to achieve these goals, be provided with filter in nozzle interior, this filter is located at and is communicated with aperture and can makes on the stream that coating liquid circulates in aperture.
In the organic EL coating device of this structure,,, but before arrival apertures such as this foreign matter, just be filtered the device collection and remove even foreign matter etc. flow in nozzle with organic EL Material because in nozzle, adorning filter.Like this, utilize to be contained in inner filter, can prevent the spray nozzle clogging of spray nozzle front end.
In this organic EL coating device, for the coating liquid that spues from nozzle and contain organic EL Material, coating liquid is delivered to nozzle, therefore, the filter effect of being under pressure is to aperture one side deflection.By with filter deployment on the interior location that only departs from this deflection of aperture, can prevent that the filter of deflection from closely contacting with aperture.In addition, from following viewpoint, filter deployment also has advantage near interior location.That is: when the spacing distance between filter and the aperture is long, when between this spacing distance, carrying coating liquid, can produce gelation as the organic EL Material of dissolved matter.When the size of gelation dissolved matter is bigger than aperture, can clogs aperture and form and stop up.But be configured near the interior location when filter, when the spacing distance of promptly setting filter and aperture is the deflection of filter, then can occur in the gelation of the dissolved matter between filter and the aperture hardly, therefore can address the above problem.
About the installation of filter in nozzle, have no particular limits.As filter releasably is provided with respect to nozzle, even when then having collected many foreign matters on the filter and need change filter, also can only change filter, just can begin coating again handles, this is than the situation comparison of nozzle being decomposed cleaning in order to begin again to apply processing, and maintainability improves.
Can be installed in concrete structure in the nozzle as filter with freely loading and unloading, for example, this nozzle is by the nozzle body of placing filter in the inner space, with configurable at nozzle body front end and constitute at the front end component that approximate center forms aperture, filter can freely load and unload in the inner space of nozzle body, also front end component freely can be loaded and unloaded with respect to nozzle body.For the correct spacing distance of setting filter and aperture, a partition also can be set, this partition can freely load and unload in the inner space of nozzle body, and inserts in the inner space between filter and the front end component, with the interval between regulation filter and the front end component.
Structure of nozzle is as follows.That is, said nozzle has: the nozzle body that can place filter in the inner space; With configurable at nozzle body front end and form the front end component of aperture in its approximate center, filter deployment is departing near the interior location of aperture, the deflection of the filter that this bias only causes for the coating liquid that flows in the inner space of nozzle body.
When filter can freely load and unload in the inner space at nozzle body, when front end component also can freely load and unload with respect to nozzle body simultaneously, the replacing filter was easy, and maintainability can improve.
In addition, for the correct spacing distance of setting between filter and the aperture, for example said nozzle has partition, this partition can freely insert and take out in the inner space of said nozzle body, and in the inner space, insert between filter and the front end component, with the interval between regulation filter and the front end component.
In order to achieve the above object, nozzle bore from nozzle of the present invention is towards spue the continuously organic EL coating device of the coating liquid that contains organic EL Material of the groove that is formed on the Rack on the substrate, it is characterized by, at the width of the groove that forms on the aforesaid substrate below 100 microns, the setting of the diameter in said nozzle hole in 16～35 micrometer ranges.
In the organic EL coating device of this structure, if the width of groove is 100 microns, then when the nozzle bore diameter below 35 microns the time because the Width both sides lump together and have 65 microns surplus at least, therefore the positioning accuracy in spray nozzle device has allowance.Because the mechanical positioning precision of substrate and groove etc. also has allowance, therefore do not have the danger that coating liquid overflows from groove simultaneously, coating liquid can spue to the groove of substrate well.In addition, when the nozzle bore diameter more than 16 microns the time, can not reduce productivity ratio because of flow is too small.Like this, when the diameter of nozzle bore is the setting of 16～35 micrometer ranges, no matter the coating conditions such as width of groove how, can become the continuous liquid column shape to spue always apply liquid.
Has nozzle body as above-mentioned nozzle, with can freely load and unload at the leading section of this nozzle body and be equipped with leading section as the aperture of aforementioned nozzle bore in this approximate center, then by preparing a plurality of front end components that are equipped with the different-diameter aperture in advance, only need to change front end component, just can easily change the diameter of nozzle bore according to the width dimensions of groove.
In addition, filter can be placed in the inner space of nozzle body, when filter is placed on when being communicated with, making on the stream that coating liquid circulates in aperture with aperture, even foreign matters etc. flow in nozzle with organic EL Material, before arriving aperture, filter is eliminated collections such as this foreign matter.Utilize filter like this, can prevent the spray nozzle clogging of spray nozzle front end.
When near the interior location that filter deployment is being departed from aperture, only the serve as reasons deflection of the filter that the coating liquid that flows in stream causes of this bias, even filter be subjected to coating liquid be delivered to nozzle the pressure effect and to aperture one side deflection.Can prevent that also the filter of deflection from closely contacting with aperture.When filter being arranged near the interior location, when the spacing distance of promptly setting filter and aperture is the deflection of filter, then can be created in dissolved matter between filter and the aperture hardly, be the gelation of organic EL Material, therefore can address the above problem.
Can in nozzle, freely load and unload as filter, in the time of filter will being changed even then collected foreign matter etc. on the filter,, just can begin the coating processing again as long as change filter, this is than the situation comparison of nozzle being decomposed cleaning in order to begin again to apply processing, and maintainability improves.
Freely insert and take out and in the inner space, be placed in the inner space of nozzle body between filter and the front end component with the partition at the interval between regulation filter and the front end component if be arranged on, then can correctly set the spacing distance between filter and the aperture.
In order to achieve the above object, the invention provides a kind of organic EL coating device, this device can be from the nozzle bore of nozzle, and towards the coating liquid that the groove that is formed on the Rack on the substrate spues continuously and contains organic EL Material, the diameter in said nozzle hole can be according to the coating conditional decision.
Utilize this structure, according to coating conditional decision nozzle bore diameter, liquid spues with continuous fluid column shape no matter the coating condition how, all can make coating.
Above-mentioned coating condition comprises at least one in the width of the viscosity of the flow of above-mentioned coating liquid, the concentration of the above-mentioned organic EL Material in the above-mentioned coating liquid, above-mentioned coating liquid and above-mentioned groove.Like this, the diameter according to nozzle bore such as decision such as the size of above-mentioned flow, concentration, viscosity, width dimensions etc. can spue adaptably with the coating condition.
In addition, this device also has the display unit that is used to import the input unit of above-mentioned coating condition and is used to show provisioning information, also can be according to the above-mentioned coating condition of above-mentioned input unit input, the suitable diameter in decision said nozzle hole, and should be presented on the above-mentioned display unit by suitable diameter.
According to this structure, because can be according to various coating conditions, the suitable diameter of decision nozzle bore, so operability and convenience raising.
In this case, this device also has the storage device of storage and the corresponding relation of the suitable diameter in above-mentioned coating condition and said nozzle hole, according to the above-mentioned corresponding relation that is stored in the above-mentioned storage device, select the corresponding suitable diameter of above-mentioned coating condition imported with above-mentioned input unit, and the suitable diameter that will select is presented on the above-mentioned display unit.Therefore, determine the suitable diameter of nozzle bore easily.
Said nozzle has nozzle body and can be installed in the front end of this nozzle body with freely loading and unloading and be equipped with front end component as the aperture in said nozzle hole in approximate center.Therefore, from a plurality of front end components of pre-prepd aperture with different-diameter, will have and front end component by the corresponding aperture of suitable diameter of above-mentioned coating conditional decision, be contained in the said nozzle body, then only need to change front end component, can easily change the diameter of nozzle bore.In addition, when the aperture do not prepared in advance with determined diameter same diameter, desirable near the aperture of diameter, as the aperture corresponding with suitable diameter.
In addition, the filter of in the inner space of said nozzle body, can packing into, above-mentioned filter is contained in when being communicated with, can making on the stream that coating liquid circulates in aperture with above-mentioned hole, even foreign matters etc. flow in nozzle with organic EL Material, before arriving aperture, this foreign matter etc. has been filtered the device collection and has removed.Like this, utilize to be contained in inner filter, can prevent spray nozzle clogging at spray nozzle front end.
In addition, in the time of near filter is configured in the interior location that departs from aperture, the deflection of the filter that this bias only causes for the coating liquid that flows in stream, even then filter is subjected to coating liquid is delivered to the pressure effect of nozzle and to aperture one side deflection, can prevents that also the filter of deflection from closely contacting with aperture.And, in the time of near filter being arranged on interior location, when soon the spacing distance of filter and aperture is set at the deflection of filter, the gelation that then between filter and aperture, can produce dissolved matter hardly.
As filter freely being loaded and unloaded in nozzle, even then collected foreign matter etc. on the filter and will change filter the time, just can begin coating again and handle as long as change filter, this is than in order to begin to apply the situation handling and nozzle is often decomposed cleaning more relatively, the maintainability raising.
Can in the inner space of nozzle body, freely insert and take out and in the inner space, can be inserted between filter and the front end component as being provided with, with the partition at the interval between regulation filter and the front end component, then can correctly set the spacing distance between filter and the aperture.
In order to achieve the above object, the invention provides a kind of coating method of organic EL Material, this method is the coating liquid that the nozzle bore from nozzle spues continuously and contains organic EL Material towards the groove that is formed on the Rack on the substrate, it is characterized by, from diameter is 16～35 microns said nozzle hole, to width at the above-mentioned coating liquid that spues continuously of the above-mentioned groove below 100 microns.
According to this structure, if for example the width of groove is 100 microns, and the nozzle bore diameter is below 35 microns the time, because the Width both sides lump together and have 65 microns surplus at least, therefore the positioning accuracy in spray nozzle device has allowance, because the mechanical positioning precision of substrate and groove etc. has allowance, therefore do not have the danger that coating liquid overflows from groove simultaneously, coating liquid can spue to the groove of substrate well.In addition, when the nozzle bore diameter more than 16 microns the time, can not reduce productivity ratio because of flow is too small.Like this, when the diameter of nozzle bore is the setting of 16～35 micrometer ranges, no matter the coating conditions such as width of groove how, can become the continuous liquid column shape to spue always apply liquid.
In order to achieve the above object, the invention provides a kind of organic EL coating method, this method is the groove from the nozzle bore of nozzle towards the Rack that forms at substrate, the coating liquid that spues continuously and contain organic EL Material, it is characterized by, at least one decides the diameter in said nozzle hole in can the width dimensions according to the viscosity of the concentration of the above-mentioned organic EL Material in above-mentioned coating flow quantity, the above-mentioned coating liquid, above-mentioned coating liquid and above-mentioned groove.
Adopt this structure, can be according to the viscosity of the concentration that contains the organic EL Material in coating flow quantity, the coating liquid, coating liquid, at least one the coating condition in the width dimensions of groove, the diameter of decision nozzle bore.For example, can no matter how, applying liquid, the coating condition all can become continuous fluid column shape to spue according to the size decision nozzle bore diameter of above-mentioned flow, concentration, viscosity, width dimensions etc.
Description of drawings
Fig. 1 represents the figure of first execution mode of organic EL coating device of the present invention.
Fig. 2 represents to be installed in the figure of the nozzle in the organic EL coating device shown in Figure 1.
Fig. 3 represents the figure of second execution mode of organic EL coating device of the present invention.
Fig. 4 is the stereogram that schematically shows substrate in the organic EL coating device shown in Figure 3 and nozzle location relation.
Fig. 5 changes instruction to pump for expression, the figure of the flow measurement result when under the various pressure that spue, spuing coating liquid, and its expression is from the spue result of coating liquid of variable concentrations of the aperture of same diameter.
Fig. 6 changes instruction to pump for expression, the flow measurement result when spuing coating liquid under the various pressure that spue, spue from the aperture of the different diameters result of coating liquid of same concentration of its expression.
Symbol description: 4a～4c nozzle; 9 control parts; 10a～10c organic EL Material; 11 memories (storage device); 12 operation display panels (input unit, display unit); 41 nozzle bodies; 43 filters; 44 partitions; 45 front end components; The 45a aperture; 101 grooves; The D spacing distance; The S glass substrate; The SP inner space.
Embodiment
(first execution mode)
First execution mode of organic EL coating device of the present invention at first, is described.Because filter is installed in nozzle, suppress the obstruction of nozzle effectively, therefore, first execution mode coating liquid (following be called simply " organic EL Material ") that organic EL Material mixes with specified solvent as dissolved matter that can stably spue.
Fig. 1 is the figure of first execution mode of expression organic EL coating device of the present invention.As shown in Figure 1, this organic EL coating device is made of following part: the platform 1 that is loading the glass substrate S that accepts coating red, green, blue look organic EL Material 10a～10c; Make this platform in platform travel mechanism 2 that prescribed direction moves; The position matchmark test section 3 of the position matchmark that detection forms on glass substrate S; The organic EL Material 10a of redness is supplied with first supply unit 5 of the nozzle 4a of red usefulness; The organic EL Material 10b of green is supplied with second supply unit 6 of the nozzle 4b of green usefulness; The organic EL Material 10c of blueness is supplied with the 3rd supply unit 7 of the nozzle 4c of blue usefulness; The nozzle moving mechanism 8 that nozzle 4a～4c that shades of colour is used moves in prescribed direction; And the control part 9 of controlling platform travel mechanism 2, the 3, the 1st～3rd supply unit 5～7 of position matchmark test section and nozzle moving mechanism 8.
In these component parts, first supply unit 5 has: the supply source 20a of red organic EL Material 10a; From supply source 20a, take out the pump 21 of red organic EL Material 10a, detect red organic EL Material 10a flow flowmeter 22 and remove the filter 23 of the foreign matter among the red organic EL Material 10a.
The 3rd supply unit 7 has: the supply source 20c of blue organic EL Material 10c, from supply source 20c, take out the pump 21 of blue organic EL Material 10c, detect blue organic EL Material 10c flow flowmeter 22 and remove the filter 23 of the foreign matter among the blue organic EL Material 10c.
When nozzle 4a～4c was in glass substrate S coating starting position, control part 9 sent instruction for each pump 21, began from each nozzle 4a～4c to the glass substrate S organic EL Material 10a～10c that spues; Simultaneously, control nozzle 4a～4c roughly moves as straight line.Like this, the organic EL Material 10a～10c of red, green, blue look can be band shape simultaneously and is coated on the glass substrate S.
When nozzle 4a～4c was on the coating stop position of glass substrate S, control part 9 sent instructions for each pump 21, stopped from each nozzle 4a～4c to the glass substrate S organic EL Material 10a～10c that spues; Simultaneously, stop to move of nozzle 4a～4c.
In addition, in the organic EL coating device that as above constitutes, in each nozzle 4a～4c, filter is housed, can prevents spray nozzle clogging effectively.Following with reference to Fig. 2, describe structure of nozzle in detail.Because the structure of each nozzle 4a～4c is identical, therefore the structure of nozzle 4a is described, and omits the structure of other nozzles 4b, 4c.
Fig. 2 is contained in the figure of the nozzle in the organic EL coating device shown in Figure 1 for expression.Fig. 2 (a) is a sectional view, and Fig. 2 (b) is an exploded.Nozzle 4a has the nozzle body 41 of front opening.In addition, partition 42, filter 43, partition 44, front end component 45 are inserted among the internal space S P of nozzle body 41 in proper order by this; Simultaneously, the front end (downside the figure) by from nozzle body 41 is contained in fixed cap 46 on the front end, above-mentioned part can be remained in the internal space S P.When the front end from nozzle body 41 takes out fixed cap 46, can from nozzle body 41, take out front end component 45, from the internal space S P of body 41, take out partition 44 and filter 43 again.In addition, at the front end of fixed cap 46 and nozzle body 41, the front end of nozzle body 41 is fixing also can thereby with negative thread and pin thread fixed cap 46 is tightened in respectively.Like this, can improve bed knife, and load and unload fixed cap 46 easily.
In the nozzle 4a of above-mentioned such assembling, form through hole 41a at nozzle body 41, this hole is from the rear end (upper end of Fig. 2) of nozzle body 41, P is communicated with internal space S, organic EL Material 10a can by through hole 41a, be delivered among the internal space S P from first supply unit 5.In addition, be delivered to the organic EL Material 10a among the nozzle 4a, as stream, flow to the front end of nozzle with internal space S P, by behind the filter 43, the aperture 45a of the approximate center by being formed on front end component 45 spues.Like this, in the present embodiment, the internal space S P of nozzle body 41 plays with aperture 45a and is communicated with, and makes the effect of the stream that organic EL Material 10a flows.
On this stream (the internal space S P of nozzle body 41), the neighboring of filter 43 is clamped by two partitions 42,44, remains fixed on the assigned position of internal space S P.This position is equivalent to " interior location " of the present invention, and it is in internal space S P (upper end of Fig. 2), separates the position of the thickness D of a partition 44 with the aperture 45a on the front end component 45.Like this, utilize partition 44, can correctly set the spacing distance D of filter 43 and aperture 45a.In the present embodiment, the deflection of the filter 43 that causes of this thickness D and the organic EL Material 10a that flows in stream (internal space S P) is roughly consistent.It is the reasons are as follows.
In order to remove foreign matter in first supply unit 5 is delivered to organic EL Material 10a the nozzle 4a and gelation dissolved matter etc., filter 43 is arranged on the stream.In the present embodiment, as the material of filter, for example use polyflon (PTFE), filtering accuracy is 10 microns.So-called " filtering accuracy " expression filter efficiency reaches the particle diameter more than 99.9%.In the present embodiment, because above-mentioned filter 43 is configured in the upstream of aperture 45a, therefore can remove among the organic EL Material 10a, particle size is at foreign matter more than 10 microns or gelation dissolved matter etc., can prevent to produce the obstruction of the aperture 45a that foreign matter etc. causes in advance.
In addition, the filter 43 of this structure can deflection.Because carry the organic EL Material 10a be supplied to nozzle 4a, so and the pressure of organic EL Material 10a adapt, the center of filter 43 is towards front end (lower end of Fig. 2) deflection of nozzle.Therefore, the interval of aperture 45a and filter 43, the deflection of the filter 43 in the time of should spuing pressure than the maximum of organic EL Material 10a is big.
On the other hand,, only need greatly a bit to get final product, do not need very big than the deflection of filter 43 about the thickness D of partition 44.When the spacing distance D of filter 43 and aperture 45a is big, when this carries organic EL Material 10a at interval, can produce gelation as the organic EL Material 10a of dissolved matter, produce and the same problem of prior art.For this reason, filter 43 is configured near the interior location, the spacing distance D that is about to filter 43 and aperture 45a sets the deflection that is roughly filter 43, and the gelation that may produce dissolved matter so hardly between filter 43 and aperture 45a can address the above problem.Consider this point, in the present embodiment, because at maximum the pressure (=3.5kgf/cm that spues
2) down the deflection of filter 43 be 0.6mm, therefore spacing distance D is set at 0.6～0.8mm.But this value is an example just, because different according to the material of filter 43 and filtering accuracy etc. or the pressure that spues etc., the deflection of filter 43 changes, and therefore should correctly grasp the deflection of filter 43, sets spacing distance D.
As mentioned above, when adopting first execution mode, owing in each nozzle 4a～4c, filter 43 is housed, can stop particle size to reach aperture 45a at the foreign matter more than 10 microns or gelation dissolved matter etc., therefore can prevent the obstruction of the aperture 45a that foreign matter etc. causes reliably.As a result, can be stably to the glass substrate S organic EL Material 10a～10c that spues, can improve the qualification rate of goods.In addition,, reduce the start-stop frequency of organic EL coating device greatly, therefore can improve the operating efficiency of device because can suppress the obstruction of nozzle.
In addition, the approximate centre part of filter 43, be subjected to from the pressure effect of the organic EL Material 10a～10c that among the internal space S P of nozzle body 41, flows, to aperture 45a deflection, but because filter 43 is configured near the interior location that departs from a deflection of aperture 45a, therefore, even the organic EL Material 10a～10c that carries makes filter 43 deflections, can prevent that also filter from closely contacting with aperture.Simultaneously, because it is similar that the spacing distance D of filter 43 and aperture 45a foreshortens to deflection (being 0.6mm in the above-described embodiment), therefore between filter 43 and aperture 45a, can not produce the gelation of dissolved matter, can be with good organic EL Material 10a～10c, by aperture 45a, S spues towards glass substrate.
In addition, in the organic EL coating device of said structure, along with the work of device, the dissolved matter of foreign matter and gelation etc. accumulates on the filter 43, needs to change filter.Because filter 43 can freely insert the internal space S P neutralization of nozzle body 41 and therefrom take out, it is easy therefore to change filter, can improve maintainability.
Owing between filter 43 and aperture 45a, insert partition 44, can correctly set spacing distance D again.
Reason as the spray nozzle clogging of existing organic EL coating device except the dissolved matter gelation, also has following reason.Generally, in this organic EL coating device, when device erects, wash pipe interior, remove foreign matter, but just flushing can not be removed the foreign matter that is trapped in pipe joint equivalance liquid storage body place fully.As time goes on these can deliver in the nozzle after flushing at the foreign matter that accumulates the liquid place, so the size foreign matter bigger than aperture, can clog the nozzle aperture, forms to stop up.
In addition, even the size of foreign matter or gelation dissolved matter is littler than aperture, when a plurality of foreign matters were sent into aperture simultaneously, near aperture, a plurality of foreign matters etc. are subjected to interactional transverse pressure, and were stiff, also form the delay state.As a result, a plurality of foreign matters etc. clog aperture, cause spray nozzle clogging.
Like this, in existing organic EL coating device, when producing spray nozzle clogging, liquid can not stably spue to substrate, and job efficiency is reduced.In addition, when spray nozzle clogging, liquid can not spray from nozzle, and temporary transient the interruption handled in coating, must decompose cleaning to nozzle, and this becomes the one of the main reasons that the applying device operating efficiency reduces.When nozzle being decomposed when cleaning, must remove the foreign matter that clogs aperture and the dissolved matter of gelation etc., aspect maintainability, also has room for improvement.
Adopt above-mentioned first execution mode, as mentioned above, can solve the problem of existing organic EL coating device.
The invention is not restricted to above-mentioned first execution mode, under the condition that does not depart from spirit of the present invention, can do above-mentioned various changes in addition.For example, as the filtering accuracy of filter 43, adopt 10 microns, but in each organic EL coating device or each nozzle, also can adopt appropriate filters.Can also make spacing distance D for the most suitable according to the situation of each filter.This point in above-mentioned first execution mode because can adopt partition 44 correctly to set spacing distance D, thus also can be in each nozzle, will and the corresponding partition of optimal spacing distance be placed between filter 43 and the front end component 45.
In addition, in above-mentioned first execution mode, the present invention has adopted in front end component 45 nozzle that forms an aperture 45a, but aperture number, configuration and shape etc. that the present invention is suitable for can be for arbitrarily, and it is applicable to from spue all organic EL coating devices of organic EL Material of spray nozzle front end.
In addition, in above-mentioned first execution mode, partition 44 is arranged, but the invention is not restricted to this, also can not have partition.But as above-mentioned first execution mode, there is partition 44 can correctly set spacing distance D.
(second execution mode)
Second execution mode of organic EL coating device of the present invention is described below.Second execution mode is according to the coating condition, and decision is located at the diameter of the nozzle bore in the nozzle, and organic EL Material therefore always can stably spue.In addition, the structure identical with first execution mode with identical symbolic representation, omitted its explanation.
Fig. 3 is the figure of second execution mode of expression organic EL coating device of the present invention, and Fig. 4 is the stereogram that is shown schematically in the position relation of substrate in the organic EL coating device shown in Figure 3 and nozzle.
As shown in Figure 4, because organic EL Material 10a is spued to the groove 101 that is formed on the substrate S from nozzle, in the groove 101 of substrate S, form the transparency electrode of making by ITO (indium tin oxide).In the present embodiment, the width dimensions L of groove 101 is the setting of L≤100 micron.
As shown in Figure 3, the structure of this organic EL coating device and first execution mode (Fig. 1) are roughly the same, but in control part 9, be provided with memory 11, also have 9 controls of Be Controlled portion, constitute the operation display panel 12 of double as input part and display part by LCD and touch pad.Control part 9 controlling platform travel mechanisms 2, make platform 1 move the amount of regulation in the Y direction, also control nozzle moving mechanism 8, make nozzle 4a～4c move the amount of regulation at directions X, simultaneously, identical with first execution mode, the control device various piece, organic EL Material 10a, 10b, 10c along groove 101, are and are coated on the glass substrate S bandedly.
In addition, the structure of each nozzle 4a～4c of the organic EL coating device of said structure, substantially the same with first execution mode shown in Figure 2.That is, as shown in Figure 2, will be equipped with the front end component 45 of the aperture 45a that is equivalent to the present invention's " nozzle bore ", releasably be installed in the nozzle body 41.Therefore, if prepare a plurality of front end components 45 that are equipped with different-diameter aperture 45a in advance, can easily change the nozzle bore diameter of nozzle 4a.
Secondly, with reference to Fig. 5 and Fig. 6, the advantage that changes the nozzle bore diameter is described.Fig. 5, Fig. 6 be for a change to the instruction d of pump 21, under the various pressure that spue, and the figure of the measurement result of the flow (discharge-amount of time per unit) when spuing coating liquid.Fig. 5 represents the spue result of coating liquid of variable concentrations of the aperture of same diameter, and Fig. 6 represents from the spue result of coating liquid of same concentrations of the aperture of different diameters.Compression resistance in the pipeline of the 1st among Fig. 3～3rd supply unit 5～7 is 0.35MPa, and the maximum of Fig. 5, Fig. 6 pressure that spues is 0.3MPa.
Concentration D1＞D2＞D3＞the D4 of the organic EL Material among Fig. 5 in the used coating liquid.For example, when concentration D4 was low concentration, when the pressure that spues was approximately 0.12Mpa, flow was about 125 μ l/ minutes; And when concentration D1 was high concentration, when the pressure that spues was approximately 0.2Mpa, flow was similarly 125 μ l/ minutes.The minimum value of the pressure that spues of each concentration when concentration D4 (for example be 0.08MPa) is for forming the minimum value of continuous liquid column.In deficiency under this pressure that spues, do not form continuous fluid column and form drop.As can be seen from Figure 5, along with organic EL concentration raises, obtain the required pressure that spues of same flow and raise.
Used nozzle bore diameter is 16,18,20,22 microns among Fig. 6.The same with Fig. 5, in Fig. 6, the minimum value of the pressure that spues (for example, diameter 22 microns time be 0.21MPa) is for forming the minimum value of continuous liquid column., do not form continuous fluid column, and become drop under this pressure that spues in deficiency.
As can be seen from Figure 6, when the nozzle bore diameter is big,, then do not form fluid column as not being big flow; When needs form fluid column continuously, and when spuing, then must reduce the diameter of nozzle bore with low discharge.On the contrary, when nozzle bore diameter hour, even the pressure that spues is brought up to the upper limit (0.3MPa), (for example, when diameter was 16 microns, flow was 130 μ l/ minutes, in order to obtain big flow, must increase the nozzle bore diameter also can only to obtain low discharge.
In Fig. 5 and Fig. 6, organic EL Material uses polyvinylcarbazole (PVK) family, and solvent for example uses 1,3, the 5-trimethylbenzene.But, be not limited thereto, organic EL Material uses polyphenylene system, poly-fluorenes system, polyphenylene vinylene (PPV) to be, cyanogen-PPV system, MEH (MEH)-PPV system wait also can, solvent use toluene, dimethylbenzene, tetrahydronaphthalene, prehnitene, methyl phenyl ethers anisole etc. also can.
In addition, in Fig. 5, the diameter of nozzle bore is 18 microns, and among Fig. 6, the concentration of getting organic EL Material is D1.
Using organic EL coating device shown in Figure 3, making under the situation of organic EL display, different according to organic EL Material, solvent types and the concentration used, the viscosity of coating liquid, i.e. mobility variations.Necessary flow also changes according to the width dimensions L of the groove 101 of the thickness of the coating liquid of necessity and substrate S etc.
By Fig. 5, Fig. 6 as can be known, in order not make the pressure that spues excessive, and be to use the suitable pressure that spues that the compression resistance of pipeline is had allowance, form fluid column continuously and the coating liquid that spues, corresponding to the coating condition (for example, the organic EL Material concentration of coating in the liquid, according to the coating fluid viscosity of this change in concentration, the width dimensions L of the groove 101 of substrate S, necessary coating flow quantity etc.), the diameter that changes nozzle bore is effective.
For example, if the width L=100 micron of groove 101, then when the nozzle bore diameter below 35 microns the time, because the Width both sides lump together, and have 65 microns surplus at least, this makes the mechanical positioning precision of nozzle 4a～4c that surplus be arranged, simultaneously, because the mechanical positioning precision of substrate S (groove 101) also has surplus, therefore do not have the danger that coating liquid overflows from groove 101, coating liquid can spue in the groove 101 of substrate S well.In addition, when the nozzle bore diameter more than 16 microns the time, do not have flow too little, the misgivings that productivity ratio reduces can spue coating liquid to the groove 101 of substrate S well.
Like this, why the organic EL coating device of second execution mode forms fluid column simultaneously continuously with organic EL Material 10a, and 10b, 10c 101 spue from nozzle bore towards groove, in case be because be droplet-like then spue the end instability.
Secondly, referring to Fig. 3 the nozzle bore method for determining diameter is described.Control part 9 is made up of CPU etc., has memory 11.In memory 11, with the concentration of the organic EL Material of coating in the liquid, with the viscosity of the coating liquid of change in concentration, the coating conditions such as coating flow quantity of the width L of the groove 101 of substrate S, necessity with the corresponding relation of nozzle bore diameter, store as list data.Be stored in memory 11 also passable with functional expression above-mentioned corresponding relation.In addition, control part 9 can be presented at the coating condition on the operation display panel 12 successively.When the operator imports corresponding data, can determine appropriate diameter from input value according to above-mentioned corresponding relation, be presented on the operation display panel 12.
In this case, when input during as the thickness of the width L of the groove 101 of coating condition and coating liquid, control part 9 calculates necessary flow, again according to result of calculation, determines suitable nozzle bore diameter.And as width L and the necessary flow of input as the groove 101 of coating condition, then according to the input data, decision nozzle bore appropriate diameter also can.And,, then also can according to the suitable diameter of input data decision nozzle bore as the viscosity of input as the width dimensions L and the coating liquid of the groove 101 of coating condition.In addition, as the characteristics such as viscosity of storage above-mentioned typical organic EL Material and solvent in memory 11, when input during as the employed organic EL Material of coating condition and solvent species, concentration, according to the input data, the diameter of decision nozzle bore also can.Like this, in the present embodiment, operation display panel 12 is equivalent to input unit and display unit, and memory 11 is equivalent to storage device.
Like this, when adopting second execution mode, because the nozzle bore diameter of the nozzle 4a of the coating liquid that getting spues contains organic EL Material 10a～10c is the setting of 16～35 micrometer ranges, should realize that the width that forms on the substrate S of high definition is on the narrow groove 101 below 100 microns, the mechanical positioning precision of nozzle 4a has allowance, because the mechanical positioning precision of substrate S (groove 101) also has allowance, therefore apply liquid and can not overflow simultaneously.Again owing to do not have a underfed, therefore coating liquid coating well.
Yet, as existing organic EL coating device, for example the spy open the 2000-202357 communique described, with organic material from the device that nozzle bore spues continuously, the diameter of having put down in writing nozzle bore is set at than 50 microns big, is preferably bigger than 200 microns.But use the device of the bigger nozzle of this nozzle bore diameter, be difficult to width at the coating liquid that spues well of the groove below 100 microns.That is: improve for definition along with organic EL display, the present situation of the narrowed width of coating, it is corresponding with it neatly to utilize above-mentioned conventional device, relatively more difficult, and adopts above-mentioned second execution mode, then can address this problem.
In addition, in second execution mode, owing to the front end component 45 that is equipped with aperture 45a releasably is installed with respect to nozzle body 41, thus constitute each nozzle 4a～4c, therefore change the diameter of nozzle bore easily.Therefore,,, the front end component of the aperture with suitable diameter is installed, can be made nozzle bore have appropriate diameter, can obtain the high device of versatility thus again according to the coating condition by preparing a plurality of front end components 45 that are equipped with the different aperture 45a of diameter in advance.As a result, no matter the coating condition how, can be reliably to the glass substrate S organic EL Material that spues, form fluid column continuously and stably.In addition, productivity ratio can not reduce, and can spue effectively.
In addition, adopt second execution mode, because can be according to the coating condition of input operation display panel 12, decision nozzle bore appropriate diameter, therefore can make the diameter of aperture (nozzle bore) 45a often remain on appropriate diameter, can well coating liquid be coated on the groove 101 of substrate S.
In addition, when adopting second execution mode,, improve operating characteristics and convenience because therefore the demonstration on operation display panel 12 of the suitable diameter of decision knows appropriate diameter easily.
Adopt second execution mode, owing to use nozzle 4a, 4b, 4c, can prevent that nozzle bore from stopping up, improve product percent of pass, improve the operating efficiency of device, can prevent that filter 43 from closely contacting with aperture 45a, prevents the dissolved matter gelation, improve maintainability etc., therefore can obtain the effect same with first execution mode.
The invention is not restricted to above-mentioned second execution mode, under the condition that does not depart from spirit of the present invention, can beyond above-mentioned, do various changes.For example, in above-mentioned second execution mode, on front end component 45, form an aperture 45a, but the number of aperture, configuration and shape etc. are arbitrarily.Can also under various coating conditions, measure flow for the pressure that spues etc. in advance.
In addition, in the 1st～3rd supply unit 5～7, can be between pump 21 and flowmeter 22 or the tight front of nozzle pressure gauge is set, the pressure that spues of monitoring pump 21.
In above-mentioned second execution mode, the corresponding relation of coating condition and the nozzle bore diameter form with list data is stored in the memory 11, but is not limited thereto.For example, also the relation of the spue pressure and the flow etc. of the diameter of viscosity, the nozzle bore of coating liquid, pump 21 can be stored in the memory 11, according to the data of utilizing 12 inputs of operation display panel, calculate above-mentioned corresponding relation by control part 9, obtain suitable diameter according to result of calculation again.
In addition, can also prepare a plurality of front end components 45 of the aperture 45a that is equipped with different-diameter in advance, will have the front end component 45 of the corresponding aperture 45a of nozzle bore diameter that diameter and control part 9 determine, be installed in the nozzle body 41.In this case, when not preparing the front end component 45 with aperture 45a consistent with the nozzle bore diameter of determining in advance, then desirable is the aperture corresponding with suitable diameter near the aperture of diameter.
Can also be in a plurality of front end components 45 of preparing the aperture 45a that is equipped with different-diameter in advance, each diameter data of being prepared is stored in the memory 11, control part 9 is selected the suitable diameter of the diameter corresponding with the coating condition as nozzle bore from the diameter of being prepared.
In addition, in above-mentioned execution mode 2, control part 9 automatically determines the suitable diameter of nozzle bore, but is not limited thereto.For example, also can prepare nozzle bore suitable diameter and the coating condition corresponding relation as list data, the operator obtains appropriate diameter again according to the coating condition from this list data.
In above-mentioned second execution mode, nozzle 4a, 4b, 4c have filter 43, but the invention is not restricted to this, do not have the nozzle of filter also passable.In addition, in above-mentioned second execution mode, nozzle 4a, 4b, 4c have partition 42,44, but the invention is not restricted to this, do not have the nozzle of partition also passable.Yet, as above-mentioned second execution mode, have filter 43 and partition 42,44 is better.
As mentioned above, because the present invention has installed filter in nozzle interior, filter is collected in foreign matter mobile in the nozzle etc., can prevent the obstruction of nozzle effectively.As a result, the coating liquid that can stably spue and contain organic EL Material simultaneously, can improve the operating efficiency of device.
Because filter releasably is installed, can only change filter as required again in nozzle, promptly can begin coating again and handle.This and the prior art comparison of nozzle being decomposed cleaning in order to begin again to apply processing can improve maintainability.
Owing between front end component that forms aperture and filter, be provided with the partition of insertion, therefore can correctly set the spacing distance of filter and aperture.
In addition, according to the present invention, at the width of the groove that forms on the substrate below 100 microns, the diameter of nozzle bore is got the setting in 16～35 micrometer ranges, therefore, the coating liquid that contains organic EL Material can not overflow from groove, and productivity ratio is reduced, coating liquid can spue well to the narrow and small groove of the width that forms on substrate, makes the mechanical positioning precision that allowance be arranged.In addition, the coating conditions such as width dimensions of tube seat are not how, and coating liquid always can become continuous fluid column shape to spue, and can well coating liquid be coated on the substrate.
Because said nozzle has nozzle body, with can freely load and unload at the front end of nozzle body, and be equipped with the front end component of aperture as the said nozzle hole in the approximate center of front end, therefore, by preparing a plurality of front end components that are equipped with the different apertures of diameter in advance, only change the diameter that front end component just can easily change nozzle bore according to the width of groove, obtain the high device of versatility.
In addition, the present invention can determine the diameter of nozzle bore according to the coating condition, therefore, no matter the coating condition how, spues with continuous fluid column shape always contain the coating liquid of organic EL Material, therefore can well coating liquid be coated on the substrate.
Because the coating condition comprises in the width dimensions of the concentration of the organic EL Material in the flow that apply liquid, the coating liquid, the viscosity that applies liquid, groove at least one, therefore determine the diameter of nozzle bore according to the size of above-mentioned flow, concentration, viscosity, groove width size etc., just can spue adaptably, thereby can well coating liquid be coated on the substrate with the coating condition.
Again owing to coating condition according to the input unit input, can determine the suitable diameter of nozzle bore, should be presented on the display unit by suitable diameter, therefore can be according to various coating conditions, determine and show the suitable diameter of nozzle bore, operating characteristics and convenience are improved.
In this case, the corresponding relation of storage coating condition and nozzle bore diameter again according to stored relation, is selected the corresponding suitable diameter of coating condition with the input unit input, selected diameter is presented on the display unit, can easily determines the suitable diameter of nozzle bore.
In addition, because prepare a plurality of front end components of aperture in advance with different-diameter, therefore, be contained in the nozzle body, only change the diameter that front end component just can easily change nozzle bore by the front end component that will have the aperture corresponding with the suitable diameter of determining according to the coating condition.
Claims (17)
1. organic EL coating device, this device is from the nozzle bore of nozzle, the coating liquid that spues continuously and contain organic EL Material towards the groove of the Rack that on substrate, forms, it is characterized by, at the width of the groove that forms on the described substrate below 100 microns, the setting of the diameter of described nozzle bore in 16～35 micrometer ranges.
2. organic EL coating device as claimed in claim 1, it is characterized by, described nozzle has nozzle body and front end component, and this front end component can be installed in the front end of this nozzle body with freely loading and unloading, and is equipped with aperture as described nozzle bore in its approximate center.
3. organic EL coating device as claimed in claim 2 is characterized by, and the filter of can packing in the inner space of described nozzle body, described filter are contained in and are communicated with described aperture and can make on the stream that described coating liquid circulates in described aperture.
4. organic EL coating device as claimed in claim 3 is characterized by, and described filter deployment is departing near the interior location of described aperture, the deflection of the described filter that this bias only causes for the described coating liquid that circulates in described stream.
5. organic EL coating device as claimed in claim 4 is characterized by, and described filter can be installed in the inner space of described nozzle body with freely loading and unloading.
6. organic EL coating device as claimed in claim 5, it is characterized by, described nozzle has partition, this partition can freely insert and take out in the inner space of described nozzle body, and in described inner space, insert between described filter and the described front end component, to stipulate the interval between described filter and the described front end component.
7. organic EL coating device, this device is from the nozzle bore of nozzle, coating liquid towards the groove of the Rack that forms on substrate spues continuously and contains organic EL Material is characterized by, and the diameter of described nozzle bore is determined according to the coating condition that comprises the width dimensions of described groove at least.
8. organic EL coating device as claimed in claim 7, it is characterized by, described coating condition comprises the flow of described coating liquid, the concentration of the described organic EL Material in the described coating liquid, at least one in the viscosity of described coating liquid and the width dimensions of described groove.
9. organic EL coating device as claimed in claim 7, it is characterized by, also has the input unit that is used to import described coating condition, with the display unit that is used to show provisioning information, described coating condition according to described input unit input, determine the suitable diameter of described nozzle bore, and should be presented on the described display unit by suitable diameter.
10. organic EL coating device as claimed in claim 9 is characterized by, and also has the storage device of the corresponding relation of the suitable diameter of storing described coating condition and described nozzle bore,
According to the described corresponding relation that is stored in the described storage device, select the corresponding suitable diameter of described coating condition imported with described input unit, and the suitable diameter that will select is presented on the described display unit.
11. as each described organic EL coating device in the claim 7～10, it is characterized by, described nozzle has nozzle body and front end component, and this front end component can be installed in the front end of this nozzle body with freely loading and unloading, and be equipped with aperture as described nozzle bore in its approximate center
From pre-prepd a plurality of front end components with different-diameter aperture, the front end component that will have the aperture corresponding with the suitable diameter of determining according to described coating condition is contained in the described nozzle body.
12. organic EL coating device as claimed in claim 11 is characterized by, the filter of can packing in the inner space of described nozzle body, described filter are contained in and are communicated with described aperture and can make on the stream that described coating liquid circulates in described aperture.
13. organic EL coating device as claimed in claim 12 is characterized by, described filter deployment is departing near the interior location of described aperture, the deflection of the described filter that this bias only causes for the described coating liquid that circulates in described stream.
14. organic EL coating device as claimed in claim 13 is characterized by, described filter can freely load and unload in the inner space of described nozzle body.
15. organic EL coating device as claimed in claim 14, it is characterized by, described nozzle has partition, this partition can freely insert and take out in the inner space of described nozzle body, and in described inner space, insert between described filter and the described front end component, to stipulate the interval between described filter and the described front end component.
16. organic EL coating method, this method is the nozzle bore from nozzle, the coating liquid that spues continuously and contain organic EL Material towards the groove of the Rack that on substrate, forms, it is characterized by, it from diameter 16～35 microns described nozzle bore, at the described groove below 100 microns, described coating liquid continuously spues to width.
17. organic EL coating method, this method is the nozzle bore from nozzle, the coating liquid that spues continuously and contain organic EL Material towards the groove of the Rack that on substrate, forms, it is characterized by, described nozzle bore diameter can be only according to the width dimensions of described groove, or determine according at least one and the width dimensions of described groove in the viscosity of the flow of described coating liquid, the concentration of described organic EL Material in the described coating liquid and described coating liquid.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002203494A JP4405137B2 (en) | 2002-07-12 | 2002-07-12 | Coating device |
| JP2002203494 | 2002-07-12 | ||
| JP2002240323A JP2004074076A (en) | 2002-08-21 | 2002-08-21 | Organic el coating apparatus and method |
| JP2002240323 | 2002-08-21 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100019281A Division CN101058481B (en) | 2002-07-12 | 2003-07-07 | Organic EL coating device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1472993A CN1472993A (en) | 2004-02-04 |
| CN100336241C true CN100336241C (en) | 2007-09-05 |
Family
ID=34196498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031465471A Expired - Fee Related CN100336241C (en) | 2002-07-12 | 2003-07-07 | Organic EL coating device and method |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100515783B1 (en) |
| CN (1) | CN100336241C (en) |
| TW (1) | TWI300669B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4852224B2 (en) * | 2002-07-30 | 2012-01-11 | セイコーエプソン株式会社 | Organic EL device manufacturing equipment |
| KR101340899B1 (en) * | 2006-01-06 | 2013-12-13 | 삼성디스플레이 주식회사 | Nozzle apparatus for organic light emitting device |
| JP2009157012A (en) * | 2007-12-26 | 2009-07-16 | Seiko Epson Corp | Method for manufacturing electro-optic device and liquid matter ejecting device |
| CN102274813B (en) * | 2010-06-09 | 2014-02-26 | 海洋王照明科技股份有限公司 | Plane coating device for fluorescent powder and plane coating method for fluorescent powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1197171A (en) * | 1997-09-18 | 1999-04-09 | Nec Corp | Organic el element and manufacture thereof |
| CN1220404A (en) * | 1997-07-16 | 1999-06-23 | 精工爱普生株式会社 | Composition for organic EL element and method of manufacturing organic EL element |
-
2003
- 2003-05-06 TW TW092112295A patent/TWI300669B/en active
- 2003-06-26 KR KR10-2003-0041805A patent/KR100515783B1/en not_active IP Right Cessation
- 2003-07-07 CN CNB031465471A patent/CN100336241C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220404A (en) * | 1997-07-16 | 1999-06-23 | 精工爱普生株式会社 | Composition for organic EL element and method of manufacturing organic EL element |
| JPH1197171A (en) * | 1997-09-18 | 1999-04-09 | Nec Corp | Organic el element and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1472993A (en) | 2004-02-04 |
| TWI300669B (en) | 2008-09-01 |
| KR100515783B1 (en) | 2005-09-23 |
| KR20040007259A (en) | 2004-01-24 |
| TW200401581A (en) | 2004-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1796000A (en) | Slit coater having apparatus for supplying a coating solution | |
| JP4980783B2 (en) | Substrate etching apparatus and substrate etching method using the same | |
| CN1885165A (en) | Coating apparatus and method of fabricating liquid crystal display device using the same | |
| WO2012111366A1 (en) | Analyzer | |
| CN101058481A (en) | Organic EL coating device and method | |
| TW200803994A (en) | Syringe pump, substrate processing apparatus and substrate processing method | |
| CN100336241C (en) | Organic EL coating device and method | |
| CN1644374A (en) | Method of driving droplet jetting head, droplet jetting apparatus, and device manufacturing method | |
| TWI465793B (en) | Substrate processing device and substrate carrying method | |
| CN105845601A (en) | Inspection unit, inspection method, and substrate treating apparatus including the same | |
| CN104588962B (en) | A kind of engine hole type nozzle single hole crush and grind device and application method | |
| TW201320150A (en) | Apparatus for forming coating film and method of forming coating film | |
| CN1669665A (en) | Thin seam nozzle and substrate treating device | |
| DE102004023918B4 (en) | Apparatus and method for removing thin films | |
| EP2571657B1 (en) | Method and device for conveying and metering bulk material in vacuum suction blasting | |
| TW201636115A (en) | Coating apparatus and coating method | |
| CN1444079A (en) | Apparatus and method for making liquid crystal display device | |
| CN108816678B (en) | Coating liquid supply device, coating machine, method of operating coating liquid supply device, and method of manufacturing spacer | |
| JP2008114137A (en) | Coater, coating apparatus and method, and apparatus and method of manufacturing member for display | |
| JP2003112103A (en) | Coating apparatus, coating method, and apparatus and method for producing color filter | |
| CN1785673A (en) | Liquid droplet ejection device, liquid droplet ejection method, electro-optical device and manufacturing method of electro-optical device | |
| TW201534403A (en) | Method and apparatus for preventing liquid condensation in dispenser | |
| JP4360889B2 (en) | Discharge device and substrate processing apparatus | |
| CN1872429A (en) | Liquid droplet ejection method and device, sprinkler unit, electro-optical device, and electronic equipment | |
| KR101332631B1 (en) | Work taping apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20190707 |