CN103645587A - Alignment layer coating device and method - Google Patents
Alignment layer coating device and method Download PDFInfo
- Publication number
- CN103645587A CN103645587A CN201310682834.0A CN201310682834A CN103645587A CN 103645587 A CN103645587 A CN 103645587A CN 201310682834 A CN201310682834 A CN 201310682834A CN 103645587 A CN103645587 A CN 103645587A
- Authority
- CN
- China
- Prior art keywords
- liquid
- transfer roll
- holding groove
- point gum
- gum machine
- 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.)
- Pending
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an alignment layer coating device and method, and relates to the technical field of liquid crystal display. According to the alignment layer coating device and method, the problem that thicknesses of an alignment liquid on surfaces of a transfer roller and a printing roller are different due to the fact that the alignment liquid is splashed onto the transfer roller is solved, and then poor printing of an alignment layer on a substrate finally is prevented. The alignment layer coating device comprises the transfer roller, the printing roller, a scraper and a dispenser, wherein the axes of the transfer roller and the printing roller are parallel, the circumferential surfaces of the transfer roller and the printing roller are adjacent, and the scraper is adjacent to the circumferential surface of the transfer roller. The alignment layer coating device further comprises a liquid accommodating bath arranged below the transfer roller, the bottom end of the transfer roller is located in the liquid accommodating bath, and a nozzle of the dispenser is aligned with the liquid accommodating bath. The alignment layer coating method comprises the steps as follows: the dispenser supplies the alignment liquid for the liquid accommodating bath arranged below the transfer roller, so that the lower end of the transfer roller is soaked in the alignment liquid in the liquid accommodating bath; and the transfer roller, the scraper and the printing roller are matched to coat the alignment layer.
Description
Technical field
The present invention relates to technical field of liquid crystal display, relate in particular to a kind of alignment films coating unit and method.
Background technology
In the manufacturing process of liquid crystal display, in order to make liquid crystal molecule proper alignment, need on substrate, apply orientation liquid liquid and form alignment films.At present, the coating of alignment films is to have realized by printing, as shown in Figure 1, traditional coating unit comprises transfer roll 1, print roller 2, scraper 3 and point gum machine 4, and in printing process, the nozzle ejection of point gum machine 4 goes out to be orientated liquid to scraper 3, transfer roll 1 rotation, scraper 3 is coated on PI liquid on transfer roll 1 uniformly, by transfer roll 1, orientation liquid is applied in print roller 2, and print roller 2 applies alignment films on substrate afterwards.
Yet, point gum machine 3 ejects orientation liquid can be splash at scraper 3 places transfer roll 1 surface, scraper cannot be scraped in 3 short time evenly, thereby causes the orientation liquid uneven thickness on transfer roll 1 and print roller 2 surfaces, causes the printing of alignment films on final substrate bad.
Summary of the invention
The invention provides a kind of alignment films coating unit and method, avoided being caused the orientation liquid thickness on transfer roll and print roller surface different because orientation liquid splashes transfer roll, thereby prevented from causing the printing of alignment films on final substrate bad.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
On the one hand, provide a kind of alignment films coating unit, comprise transfer roll, print roller, scraper and point gum machine, the axially parallel of described transfer roll and print roller and periphery next-door neighbour, described scraper is close to the periphery of described transfer roll, also comprises:
Be arranged at the liquid holding groove of described transfer roll below, described transfer roll be positioned at bottom described liquid holding groove, liquid holding groove described in the nozzle alignment of described point gum machine.
Further, above-mentioned alignment films coating unit also comprises: for detection of the liquid level sensor of liquid level in described liquid holding groove.
Further, in described point gum machine, be provided with flow controller, described flow controller is electrically connected on described liquid level sensor, described flow controller reduces for control the flow that shoots out of described point gum machine when described liquid holding groove liquid level is greater than first threshold, and the flow that shoots out of controlling described point gum machine when liquid level is less than Second Threshold in described liquid holding groove increases.
On the other hand, provide a kind of alignment films painting method, comprising:
Point gum machine provides orientation liquid in the liquid holding groove of transfer roll below, makes in the orientation liquid that is infiltrated on bottom described liquid holding groove of described transfer roll;
Orientation liquid on described transfer roll rotation and described transfer roll periphery is even by scraper blade coating;
Print roller rotation with described transfer roll axially parallel and periphery next-door neighbour, is applied on the periphery of described print roller the orientation liquid on described transfer roll periphery;
Orientation liquid on described print roller periphery is coated on substrate.
Particularly, the flow that shoots out of controlling described point gum machine when liquid level is greater than first threshold in described liquid holding groove reduces, and the flow that shoots out of controlling described point gum machine when liquid level is less than Second Threshold in described liquid holding groove increases.
Preferably, described orientation liquid is polyimide liquid.
Alignment films coating unit and method in the present embodiment, by being set, liquid holding groove guarantees that transfer roll can obtain appropriate orientation liquid all the time when rotating from liquid holding groove, thereby avoided traditional orientation liquid to shoot out in mode, because orientation liquid is splash transfer roll, cause the orientation liquid thickness on transfer roll and print roller surface different, thereby prevent from causing the printing of alignment films on final substrate bad.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of a kind of alignment films coating unit in prior art;
Fig. 2 is the structural representation of a kind of alignment films coating unit in the embodiment of the present invention;
Fig. 3 is the process flow diagram of a kind of alignment films painting method in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 2, the embodiment of the present invention provides a kind of alignment films coating unit, comprise transfer roll 1, print roller 2, scraper 3 and point gum machine 4, transfer roll 1 is close to axially parallel and the periphery of print roller 2, the periphery of scraper 3 next-door neighbour's transfer rolls 1, this alignment films coating unit also comprises: be arranged at the liquid holding groove 5 of transfer roll 1 below, transfer roll 1 be positioned at bottom liquid holding groove 5, the nozzle alignment liquid holding groove 5 of point gum machine 4.
Particularly, the nozzle of point gum machine 4 provides orientation liquid 6 in liquid holding groove 5, and for example, orientation liquid 6 is specifically as follows polyimide (Polyimide, PI) liquid; In the orientation liquid 6 that is infiltrated on bottom liquid holding groove 5 of transfer roll 1, guarantee that transfer roll 1 can obtain appropriate orientation liquid 6 all the time when rotating from liquid holding groove 5, thereby avoided traditional orientation liquid to shoot out in mode, because orientation liquid is splash transfer roll, caused the orientation liquid thickness on transfer roll and print roller surface different; Transfer roll 1 rotation, the periphery being infiltrated in orientation liquid 6 produces rear nature with orientation liquid, even by scraper blade coating when the orientation liquid on transfer roll 1 periphery passes through scraper 3; Print roller 2, to the direction rotation contrary with transfer roll 1, is applied on the periphery of print roller 2 the orientation liquid on transfer roll 1 periphery; Print roller 2 belows are provided with printing machine platform 7, on printing machine platform 7, place and need to be printed substrate 8, and the orientation liquid on print roller 2 peripheries is coated on substrate 8 and formed alignment films.
Alignment films coating unit in the present embodiment, by being set, liquid holding groove guarantees that transfer roll can obtain appropriate orientation liquid all the time when rotating from liquid holding groove, thereby avoided traditional orientation liquid to shoot out in mode, because orientation liquid is splash transfer roll, cause the orientation liquid thickness on transfer roll and print roller surface different, thereby prevent from causing the printing of alignment films on final substrate bad.
Further, above-mentioned alignment films coating unit can also comprise: for detection of the liquid level sensor 51 of liquid level in liquid holding groove 5, detect in liquid holding groove 5 and can point out liquid level whether too high or too low after liquid level, if liquid level is too high, control the flow that shoots out that reduces point gum machine 4; If liquid level is too low, control the flow that shoots out that increases point gum machine 4.Thereby control liquid level all the time in suitable scope, avoid being orientated the waste that liquid too much causes, or orientation liquid is very few makes that on transfer roll, to be orientated the dry printing causing of liquid bad.
Further, the shooing out flow and can automatically complete of above-mentioned control point gum machine 4, in point gum machine 4, be provided with flow controller, described flow controller is electrically connected on liquid level sensor 51, described flow controller reduces for control the flow that shoots out of point gum machine 4 when liquid holding groove 5 liquid levels are greater than first threshold, and the flow that shoots out of controlling point gum machine 4 when liquid level is less than Second Threshold in liquid holding groove 5 increases.Wherein first threshold can be greater than Second Threshold or equal Second Threshold.
Alignment films coating unit in the present embodiment, by being set, liquid holding groove guarantees that transfer roll can obtain appropriate orientation liquid all the time when rotating from liquid holding groove, thereby avoided traditional orientation liquid to shoot out in mode, because orientation liquid is splash transfer roll, cause the orientation liquid thickness on transfer roll and print roller surface different, thereby prevent from causing the printing of alignment films on final substrate bad.
As shown in Figure 3, the embodiment of the present invention provides a kind of alignment films painting method, can be for above-mentioned alignment films coating unit, and this alignment films painting method comprises:
Orientation liquid on step 102, the rotation of described transfer roll and described transfer roll periphery is even by scraper blade coating;
Orientation liquid on step 104, described print roller periphery is coated on substrate.
The specific implementation process of each step can be same as the previously described embodiments, do not repeat them here.
Further, the flow that shoots out of controlling described point gum machine when liquid level is greater than first threshold in described liquid holding groove reduces, and the flow that shoots out of controlling described point gum machine when liquid level is less than Second Threshold in described liquid holding groove increases.
Preferably, described orientation liquid is polyimide liquid.
Alignment films painting method in the present embodiment, by being set, liquid holding groove guarantees that transfer roll can obtain appropriate orientation liquid all the time when rotating from liquid holding groove, thereby avoided traditional orientation liquid to shoot out in mode, because orientation liquid is splash transfer roll, cause the orientation liquid thickness on transfer roll and print roller surface different, thereby prevent from causing the printing of alignment films on final substrate bad.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (6)
1. an alignment films coating unit, comprises transfer roll, print roller, scraper and point gum machine, the axially parallel of described transfer roll and print roller and periphery next-door neighbour, and described scraper is close to the periphery of described transfer roll, it is characterized in that, also comprises:
Be arranged at the liquid holding groove of described transfer roll below, described transfer roll be positioned at bottom described liquid holding groove, liquid holding groove described in the nozzle alignment of described point gum machine.
2. alignment films coating unit according to claim 1, is characterized in that, also comprises:
Liquid level sensor for detection of liquid level in described liquid holding groove.
3. alignment films coating unit according to claim 2, is characterized in that,
In described point gum machine, be provided with flow controller, described flow controller is electrically connected on described liquid level sensor, described flow controller reduces for control the flow that shoots out of described point gum machine when described liquid holding groove liquid level is greater than first threshold, and the flow that shoots out of controlling described point gum machine when liquid level is less than Second Threshold in described liquid holding groove increases.
4. an alignment films painting method, is characterized in that, comprising:
Point gum machine provides orientation liquid in the liquid holding groove of transfer roll below, makes in the orientation liquid that is infiltrated on bottom described liquid holding groove of described transfer roll;
Orientation liquid on described transfer roll rotation and described transfer roll periphery is even by scraper blade coating;
Print roller rotation with described transfer roll axially parallel and periphery next-door neighbour, is applied on the periphery of described print roller the orientation liquid on described transfer roll periphery;
Orientation liquid on described print roller periphery is coated on substrate.
5. alignment films painting method according to claim 4, is characterized in that,
The flow that shoots out of controlling described point gum machine when liquid level is greater than first threshold in described liquid holding groove reduces, and the flow that shoots out of controlling described point gum machine when liquid level is less than Second Threshold in described liquid holding groove increases.
6. according to the alignment films painting method described in claim 4 or 5, it is characterized in that,
Described orientation liquid is polyimide liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682834.0A CN103645587A (en) | 2013-12-13 | 2013-12-13 | Alignment layer coating device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682834.0A CN103645587A (en) | 2013-12-13 | 2013-12-13 | Alignment layer coating device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103645587A true CN103645587A (en) | 2014-03-19 |
Family
ID=50250829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310682834.0A Pending CN103645587A (en) | 2013-12-13 | 2013-12-13 | Alignment layer coating device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103645587A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289342A (en) * | 2014-10-20 | 2015-01-21 | 深圳市华星光电技术有限公司 | Method and device for coating polyimide |
| CN104309285A (en) * | 2014-10-27 | 2015-01-28 | 合肥京东方光电科技有限公司 | Alignment film printer and printing method thereof |
| CN104730772A (en) * | 2015-04-13 | 2015-06-24 | 合肥京东方光电科技有限公司 | Positioning method, device and system |
| CN104766908A (en) * | 2014-12-31 | 2015-07-08 | 苏州润阳光伏科技有限公司 | Chain type diffusion non-etching face phosphorus coating device |
| CN104785418A (en) * | 2015-04-29 | 2015-07-22 | 京东方科技集团股份有限公司 | Coating device |
| CN104849914A (en) * | 2015-05-26 | 2015-08-19 | 京东方科技集团股份有限公司 | Transfer printing plate |
| CN107930975A (en) * | 2017-12-28 | 2018-04-20 | 合肥星源新能源材料有限公司 | A kind of membrane coating unit |
| CN108525895A (en) * | 2018-04-17 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of control method of alignment films print system and printing equipment |
| CN108983502A (en) * | 2018-09-27 | 2018-12-11 | 武汉华星光电技术有限公司 | Alignment Coating Equipment |
| CN114273144A (en) * | 2021-12-20 | 2022-04-05 | 无锡裕力机械有限公司 | Coating and feeding equipment and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283574U (en) * | 1985-11-18 | 1987-05-28 | ||
| KR20060073755A (en) * | 2004-12-24 | 2006-06-29 | 삼성전자주식회사 | Apparatus for printing alignment layer and lcd including alignment layer manufactured by the same |
| CN101025499A (en) * | 2006-02-23 | 2007-08-29 | 三星电子株式会社 | Apparatus for manufacturing liquid crystal display and method of manufacturing the same |
| CN101520576A (en) * | 2008-02-29 | 2009-09-02 | 富士胶片株式会社 | Method for manufacturing optical film and optical film |
-
2013
- 2013-12-13 CN CN201310682834.0A patent/CN103645587A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283574U (en) * | 1985-11-18 | 1987-05-28 | ||
| KR20060073755A (en) * | 2004-12-24 | 2006-06-29 | 삼성전자주식회사 | Apparatus for printing alignment layer and lcd including alignment layer manufactured by the same |
| CN101025499A (en) * | 2006-02-23 | 2007-08-29 | 三星电子株式会社 | Apparatus for manufacturing liquid crystal display and method of manufacturing the same |
| CN101520576A (en) * | 2008-02-29 | 2009-09-02 | 富士胶片株式会社 | Method for manufacturing optical film and optical film |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289342A (en) * | 2014-10-20 | 2015-01-21 | 深圳市华星光电技术有限公司 | Method and device for coating polyimide |
| WO2016061834A1 (en) * | 2014-10-20 | 2016-04-28 | 深圳市华星光电技术有限公司 | Method and apparatus for coating polyimide |
| CN104309285B (en) * | 2014-10-27 | 2016-05-04 | 合肥京东方光电科技有限公司 | A kind of alignment films printing machine and printing process thereof |
| CN104309285A (en) * | 2014-10-27 | 2015-01-28 | 合肥京东方光电科技有限公司 | Alignment film printer and printing method thereof |
| CN104766908A (en) * | 2014-12-31 | 2015-07-08 | 苏州润阳光伏科技有限公司 | Chain type diffusion non-etching face phosphorus coating device |
| CN104730772A (en) * | 2015-04-13 | 2015-06-24 | 合肥京东方光电科技有限公司 | Positioning method, device and system |
| CN104730772B (en) * | 2015-04-13 | 2017-10-10 | 合肥京东方光电科技有限公司 | A kind of localization method, positioner and alignment system |
| CN104785418A (en) * | 2015-04-29 | 2015-07-22 | 京东方科技集团股份有限公司 | Coating device |
| CN104849914A (en) * | 2015-05-26 | 2015-08-19 | 京东方科技集团股份有限公司 | Transfer printing plate |
| CN104849914B (en) * | 2015-05-26 | 2017-12-01 | 京东方科技集团股份有限公司 | A kind of transfer printing board |
| CN107930975A (en) * | 2017-12-28 | 2018-04-20 | 合肥星源新能源材料有限公司 | A kind of membrane coating unit |
| CN108525895A (en) * | 2018-04-17 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of control method of alignment films print system and printing equipment |
| CN108525895B (en) * | 2018-04-17 | 2019-08-27 | 京东方科技集团股份有限公司 | A kind of control method of alignment films print system and printing equipment |
| CN108983502A (en) * | 2018-09-27 | 2018-12-11 | 武汉华星光电技术有限公司 | Alignment Coating Equipment |
| WO2020062836A1 (en) * | 2018-09-27 | 2020-04-02 | 武汉华星光电技术有限公司 | Alignment film coating device |
| CN114273144A (en) * | 2021-12-20 | 2022-04-05 | 无锡裕力机械有限公司 | Coating and feeding equipment and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103645587A (en) | Alignment layer coating device and method | |
| JP6411466B2 (en) | Slot die coating method and apparatus | |
| JP5169395B2 (en) | Coating apparatus and coating method | |
| JP5425051B2 (en) | Coating equipment | |
| JP2014156086A (en) | Gravure coating apparatus provided with cleaning function | |
| KR101580738B1 (en) | Reverse offset printing apparatus and method | |
| KR20190064102A (en) | Micro gravure roll coating apparatus | |
| KR101323763B1 (en) | Apparatus for manufacturing printed transparent conductive electrode film | |
| JP4799390B2 (en) | Application method | |
| CN104626786A (en) | Uniform etching method for laser plate roller | |
| JP2012224005A (en) | Coloring device | |
| CN202570538U (en) | Double-surface one-step coating device for coiled base materials | |
| CN106164337A (en) | Cylinder corrosion device | |
| JP2015218008A (en) | Coating system | |
| JP2011056839A (en) | Removal plate cleaning method, removable plate cleaning substrate, method for recovering ink, method for reproducing ink, and removal plate cleaning device | |
| US10744755B2 (en) | Application of coating fluid using movable rollers | |
| JP6692038B2 (en) | Ink supply device for flexographic printing | |
| JP2005322873A5 (en) | ||
| CN204586116U (en) | A kind of printing-ink unit and curved surface printing machine with cleaning function | |
| JP5007505B2 (en) | Letterpress printing apparatus, printing method, method for producing printed matter, method for producing organic EL element | |
| US20150352832A1 (en) | Liquid transfer device | |
| KR102347409B1 (en) | Inkjet Printer | |
| JP2007075724A (en) | Coating method and coater | |
| CN204208760U (en) | A kind of holiday device | |
| KR20140032842A (en) | Apparatus for dispensing photoresist |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140319 |
|
| RJ01 | Rejection of invention patent application after publication |