CN110687703A - Repairing device and method for liquid crystal alignment film - Google Patents
Repairing device and method for liquid crystal alignment film Download PDFInfo
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- CN110687703A CN110687703A CN201910981264.2A CN201910981264A CN110687703A CN 110687703 A CN110687703 A CN 110687703A CN 201910981264 A CN201910981264 A CN 201910981264A CN 110687703 A CN110687703 A CN 110687703A
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- alignment film
- liquid
- cleaning
- rotating component
- conveyer belt
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
Abstract
The invention discloses a repairing device for a liquid crystal alignment film, which comprises a cleaning component and a drying component, wherein the cleaning component comprises a liquid supply rotating part, a traveling rotating part and an alignment film cleaning conveying belt. The liquid supply rotating member and the traveling rotating member are driven to drive the alignment film cleaning conveyor belt to drive along a cleaning conveying path, so that the excess alignment film on the substrate is cleaned by the alignment film cleaning liquid contained in the alignment film cleaning conveyor belt. The drying component comprises a travelling rotating component and a residual liquid cleaning conveying belt, the travelling rotating component drives the residual liquid cleaning conveying belt to drive along the cleaning conveying path, so that residual alignment film cleaning liquid remained on the substrate is absorbed by the residual liquid cleaning conveying belt, and therefore, the region with abnormal precision on the substrate can be repaired, and the repair of the alignment film is simplified.
Description
Technical Field
The present invention relates to a repairing device, and more particularly, to a repairing device and a method for repairing a liquid crystal alignment film
Background
In the thin film transistor, polyimide liquid film, i.e. alignment film, is formed on the glass substrate by baking and curing polyimide liquid. The polyimide film is formed by the steps of cleaning before coating polyimide film, conveying machine, rotating machine, pre-baking oven, etc. and the quality inspection is performed in the inspection machine.
In practical use, for a number of reasons, for example in terms of equipment: poor drying after the treatment of the cleaner process before the polyimide film coating, which causes the abnormal diffusion of polyimide liquid; the deviation of the landing position of the polyimide film is caused by the self-accuracy error of the machine table of the polyimide film coating machine, poor air flow management and the like; the shaking of the machine tables of the conveying machine and the rotating machine causes the polyimide liquid on the glass substrate to randomly diffuse to the periphery; in terms of product design: the diffusion rule of polyimide liquid is influenced by the structures of pixels, electrodes and the like on the glass substrate, so that the precision of the glass substrate film is difficult to control within +/-300 micrometers.
To meet higher quality requirements, the requirements for precision control of polyimide films are becoming more and more stringent. Due to the various uncertainties described above, the accuracy of polyimide films may still exceed the upper and lower limits of the specification. The pretreatment scheme for defective products is to peel off and re-coat the whole glass substrate. However, such a method results in an extended production cycle of the product and an increase in consumables (e.g., polyimide solution and N-methyl-2-pyrrolidone), and may cause other problems.
The existing repairing machine can only repair the spot defects, such as mura, the defect area is generally less than 1 × 1 mm, and the defect of the polyimide film with abnormal precision can not be processed when the area can reach more than 10 × 1 mm.
Therefore, it is necessary to provide a repairing apparatus for liquid crystal alignment film to solve the problems of the prior art.
Disclosure of Invention
In view of the above, the present invention provides a repairing apparatus for a liquid crystal alignment film and a method for repairing a liquid crystal alignment film, so as to repair an area of the liquid crystal alignment film with abnormal precision, prevent the liquid crystal alignment film with precision exceeding an upper limit from causing quality abnormality to subsequent processes such as frame coating, and reduce the occurrence rate of poor quality of peripheral mura.
In order to achieve the foregoing object, an embodiment of the present invention provides a liquid crystal alignment film repairing apparatus, which includes a liquid crystal alignment film repairing device, and is characterized in that the liquid crystal alignment film repairing device includes a cleaning member including a liquid supply rotating member, a traveling rotating member, and an alignment film cleaning conveyer belt, the liquid supply rotating member and the traveling rotating member are respectively disposed on a same horizontal plane at a distance from front to back along a cleaning conveying path, the alignment film cleaning conveyer belt surrounds the liquid supply rotating member and the traveling rotating member, the liquid supply rotating member provides an alignment film cleaning liquid to the alignment film cleaning conveyer belt, and the liquid supply rotating member and the traveling rotating member are driven to simultaneously rotate around their axes and drive the alignment film cleaning conveyer belt to rotate.
In an embodiment of the present invention, the drying device further includes a drying member, the drying member includes a traveling rotating member and a residual liquid cleaning conveyer belt, the residual liquid cleaning conveyer belt surrounds the traveling rotating member, and the traveling rotating member is driven to rotate around its axis and drives the residual liquid cleaning conveyer belt to rotate.
In an embodiment of the invention, the liquid supplying rotating member includes a transmission shaft and a liquid storage portion, the liquid storage portion is disposed concentrically with the transmission shaft, and the liquid storage portion is located outside the transmission shaft, the liquid storage portion has a liquid storage space for storing the alignment film cleaning liquid, and a plurality of liquid permeating ports are formed on a surface of the liquid supplying rotating member contacting the alignment film cleaning conveyer belt, the plurality of liquid permeating ports are communicated with the liquid storage space, and the alignment film cleaning liquid permeates to the alignment film cleaning conveyer belt through the plurality of liquid permeating ports.
In an embodiment of the invention, the liquid supply rotating member includes a liquid supply pipe, the liquid supply pipe is communicated with the liquid storage space, and the liquid supply pipe provides the alignment film cleaning liquid to the liquid storage space.
In an embodiment of the present invention, the width of the traveling rotator of the drying component is greater than the width of the traveling rotator of the cleaning component and the width of the liquid feeding rotator.
In an embodiment of the invention, the alignment film cleaning conveyer belt and the residual liquid cleaning conveyer belt are made of cotton materials.
In an embodiment of the invention, the alignment film cleaning solution is an N-methyl-2-pyrrolidone solution.
Furthermore, another embodiment of the present invention provides a method for repairing a liquid crystal alignment film, including: providing a repairing device, wherein the repairing device comprises a cleaning component and a drying component, the cleaning component comprises a liquid supply rotating component, a traveling rotating component and an alignment film cleaning conveyer belt, the liquid supply rotating component and the traveling rotating component are respectively arranged on the same horizontal plane at a distance from the front to the back along a cleaning conveying path, the alignment film cleaning conveyer belt surrounds the liquid supply rotating component and the traveling rotating component, the liquid supply rotating component provides alignment film cleaning liquid to the alignment film cleaning conveyer belt, and the liquid supply rotating component and the traveling rotating component are driven to simultaneously rotate around the axes of the liquid supply rotating component and the traveling rotating component and drive the alignment film cleaning conveyer belt to rotate; the drying component comprises a travelling rotating component and a residual liquid cleaning conveyer belt, the residual liquid cleaning conveyer belt surrounds the travelling rotating component, and the travelling rotating component is driven to rotate around the axis of the travelling rotating component and drives the residual liquid cleaning conveyer belt to rotate; a cleaning step, in which the cleaning component is arranged on a substrate to be repaired, the liquid supply rotating part is driven to drive the alignment film cleaning conveyer belt to rotate on the substrate, so that the alignment film cleaning conveyer belt is in frictional contact with the substrate, and redundant alignment films on the substrate are cleaned by alignment film cleaning liquid contained in the alignment film cleaning conveyer belt; and a drying step of disposing the drying member on the substrate after the cleaning step, wherein the advancing rotating member of the drying member is driven to drive the residual liquid cleaning conveyer belt to rotate on the substrate, so that the residual liquid cleaning conveyer belt absorbs the residual alignment film cleaning liquid on the substrate.
Compared with the prior art, the repairing device and the repairing method for the liquid crystal alignment film can repair the area with abnormal precision, can avoid the abnormal quality of the alignment film with the precision exceeding the upper limit, such as polyimide film to the subsequent processes of frame coating glue and the like, and can reduce the occurrence of poor quality of peripheral mura and the like to a certain extent. The repairing device and the repairing method of the liquid crystal alignment film of the invention do not need to strip and re-coat the whole substrate, thereby reducing the material consumption, such as N-methyl-2-pyrrolidone solution and polyimide solution. Because only the abnormal area is repaired, the risk of other defects caused in the whole product reworking process can be greatly reduced.
In order to make the aforementioned and other objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below:
drawings
Fig. 1 is a schematic diagram of a repairing apparatus for a liquid crystal alignment film according to an embodiment of the present invention.
FIG. 2 is a schematic view of a liquid crystal rotating member of a repairing apparatus for a liquid crystal alignment film according to an embodiment of the present invention.
Fig. 3 is a flowchart of a method of repairing a liquid crystal alignment film according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. Furthermore, directional phrases used herein, such as, for example, upper, lower, top, bottom, front, rear, left, right, inner, outer, lateral, peripheral, central, horizontal, lateral, vertical, longitudinal, axial, radial, uppermost or lowermost, etc., refer only to the orientation of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, a repairing apparatus 100 for a liquid crystal alignment layer according to an embodiment of the present invention includes a cleaning member 1 and a drying member 2.
The cleaning component 1 comprises a liquid supplying rotating part 11, a traveling rotating part 12 and an alignment film cleaning conveyer belt 13, wherein the liquid supplying rotating part 11 and the traveling rotating part 12 are respectively arranged on the same horizontal plane at intervals back and forth along a cleaning conveying path, the alignment film cleaning conveyer belt 13 surrounds the liquid supplying rotating part 11 and the traveling rotating part 12, the liquid supplying rotating part 11 provides alignment film cleaning liquid to the alignment film cleaning conveyer belt 13, and the liquid supplying rotating part 11 and the traveling rotating part 12 are driven to simultaneously rotate around the axes of the liquid supplying rotating part and the traveling rotating part and drive the alignment film cleaning conveyer belt 13 to rotate. In detail, in this embodiment, the alignment film cleaning solution is an N-methyl-2-pyrrolidone solution.
In detail, as shown in fig. 2, the liquid supplying and rotating member 11 includes a transmission shaft 111 and a liquid storage portion 112, the liquid storage portion 112 is disposed concentrically with the transmission shaft 111, the liquid storage portion 112 is located outside the transmission shaft 111, the liquid storage portion 111 has a liquid storage space S for storing the alignment film cleaning liquid, and a plurality of liquid permeating ports 113 are formed on a surface of the liquid supplying and rotating member 11 contacting the alignment film cleaning conveyer 13, the plurality of liquid permeating ports 113 are communicated with the liquid storage space S, and the alignment film cleaning liquid permeates into the alignment film cleaning conveyer 13 through the plurality of liquid permeating ports 113.
Preferably, the liquid supplying rotary member 11 includes a liquid supplying pipe 114, the liquid supplying pipe 114 is connected to the liquid storage space S, and the liquid supplying pipe 114 provides the alignment film cleaning liquid to the liquid storage space S. By adjusting the supply pressure of the alignment film wiping liquid, the speed (i.e., flow rate) of the alignment film wiping liquid seeping out can be controlled.
The drying member 2 includes a traveling rotary member 21 and a residual liquid cleaning conveyer belt 22, the residual liquid cleaning conveyer belt 22 surrounds the traveling rotary member 21, and the traveling rotary member 21 is driven to rotate around its axis and drives the residual liquid cleaning conveyer belt 22 to rotate.
In detail, in this embodiment, the alignment film cleaning conveyer belt 13 and the residual liquid cleaning conveyer belt 22 are both made of cotton material, which is beneficial to preventing dust and fiber from falling off. When the alignment film cleaning conveyer belt 13 contacts with a substrate to be repaired, the alignment film, i.e. the polyimide film, on the substrate to be repaired can be wiped off by friction. And the residual liquid wiping belt 22 is used for wiping off the alignment film, i.e. polyimide film, on the substrate to be repaired with accuracy exceeding the upper limit.
Preferably, the width of the traveling rotor 21 of the drying component 2 is greater than the widths of the liquid supplying rotor 11 and the traveling rotor 12 of the cleaning component 1, so as to absorb the residual liquid of the alignment film cleaning liquid diffused to both sides.
As shown in fig. 3, a method for repairing a liquid crystal alignment film according to an embodiment of the present invention sequentially comprises the following steps:
the repairing device provides step S1, which is to provide a repairing device, the repairing device includes a cleaning component and a drying component, the cleaning component includes a liquid supplying rotating component, a traveling rotating component and an alignment film cleaning conveyer belt, the liquid supplying rotating component and the traveling rotating component are respectively disposed on the same horizontal plane along a cleaning conveying path at a distance from front to back, the alignment film cleaning conveyer belt surrounds the liquid supplying rotating component and the traveling rotating component, the liquid supplying rotating component provides an alignment film cleaning liquid to the alignment film cleaning conveyer belt, the liquid supplying rotating component and the traveling rotating component are driven to simultaneously rotate around their axes and drive the alignment film cleaning conveyer belt to rotate. The drying component comprises a travelling rotating part and a residual liquid cleaning conveyer belt, the residual liquid cleaning conveyer belt surrounds the travelling rotating part, and the travelling rotating part is driven to rotate around the axis of the travelling rotating part and drives the residual liquid cleaning conveyer belt to rotate.
A cleaning step S2, in which the cleaning component is disposed on a substrate to be repaired, the liquid supplying and rotating component is driven to drive the alignment film cleaning and conveying belt to rotate on the substrate, so that the alignment film cleaning and conveying belt is in frictional contact with the substrate, and excess alignment film on the substrate is cleaned by the alignment film cleaning and conveying liquid contained in the alignment film cleaning and conveying belt.
A drying step S3 of disposing the drying member on the substrate after the cleaning step, wherein the traveling rotor of the drying member is driven to rotate the residual liquid cleaning conveyer belt on the substrate, so as to absorb the residual alignment film cleaning liquid on the substrate by the residual liquid cleaning conveyer belt.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. Rather, modifications and equivalent arrangements included within the spirit and scope of the claims are included within the scope of the invention.
Claims (8)
1. The repairing device for the liquid crystal alignment film is characterized by comprising a cleaning component, a liquid supply rotating component, a traveling rotating component and an alignment film cleaning conveying belt, wherein the liquid supply rotating component and the traveling rotating component are correspondingly arranged on the same horizontal plane in the front and back direction at a spacing distance along a cleaning conveying path, the alignment film cleaning conveying belt surrounds the liquid supply rotating component and the traveling rotating component, the liquid supply rotating component provides alignment film cleaning liquid to the alignment film cleaning conveying belt, and the liquid supply rotating component and the traveling rotating component are driven to rotate around the axis of the liquid supply rotating component and drive the alignment film cleaning conveying belt to rotate.
2. The prosthetic device of claim 1 wherein: the drying component comprises a travelling rotating component and a residual liquid cleaning conveyer belt, the residual liquid cleaning conveyer belt surrounds the travelling rotating component, and the travelling rotating component is driven to rotate around the axis of the travelling rotating component and drives the residual liquid cleaning conveyer belt to rotate.
3. The prosthetic device of claim 1 wherein: the confession liquid rotates the piece and includes a transmission shaft and a stock solution portion, stock solution portion with the transmission shaft sets up with one heart, just stock solution portion is located the outside of transmission shaft, stock solution portion has a stock solution space, supplies to store the clear liquid of wiping of rubbing to the membrane, and the confession liquid rotates the piece with the surface that the clear conveyer belt of wiping of rubbing to the membrane touches is formed with a plurality of sepage openings, a plurality of sepage openings with the stock solution space is linked together, the clear liquid of wiping of rubbing to the membrane is through a plurality of sepage openings ooze to the clear conveyer belt of wiping to the membrane.
4. The prosthetic device of claim 3 wherein: the liquid supply rotating part comprises a liquid supply pipe fitting, the liquid supply pipe fitting is communicated with the liquid storage space, and the liquid supply pipe fitting provides the alignment film cleaning liquid to the liquid storage space.
5. The prosthetic device of claim 1 wherein: the width of the advancing rotating piece of the drying component is larger than the width of the liquid supply rotating piece and the advancing rotating piece of the cleaning component.
6. The prosthetic device of claim 1 wherein: the alignment film cleaning conveyer belt and the residual liquid cleaning conveyer belt are made of cotton materials.
7. The prosthetic device of claim 1 wherein: the alignment film cleaning solution is an N-methyl-2-pyrrolidone solution.
8. A method for repairing a liquid crystal alignment film, comprising:
providing a repairing device, wherein the repairing device comprises a cleaning component and a drying component, the cleaning component comprises a liquid supply rotating component, a traveling rotating component and an alignment film cleaning conveyer belt, the liquid supply rotating component and the traveling rotating component are respectively arranged on the same horizontal plane at a distance from the front to the back along a cleaning conveying path, the alignment film cleaning conveyer belt surrounds the liquid supply rotating component and the traveling rotating component, the liquid supply rotating component provides alignment film cleaning liquid to the alignment film cleaning conveyer belt, and the liquid supply rotating component and the traveling rotating component are driven to simultaneously rotate around the axes of the liquid supply rotating component and the traveling rotating component and drive the alignment film cleaning conveyer belt to rotate; the drying component comprises a travelling rotating component and a residual liquid cleaning conveyer belt, the residual liquid cleaning conveyer belt surrounds the travelling rotating component, and the travelling rotating component is driven to rotate around the axis of the travelling rotating component and drives the residual liquid cleaning conveyer belt to rotate;
a cleaning step, in which the cleaning component is arranged on a substrate to be repaired, the liquid supply rotating part is driven to drive the alignment film cleaning conveyer belt to rotate on the substrate, so that the alignment film cleaning conveyer belt is in frictional contact with the substrate, and redundant alignment films on the substrate are cleaned by alignment film cleaning liquid contained in the alignment film cleaning conveyer belt; and
and a drying step of disposing the drying member on the substrate after the cleaning step, wherein the traveling rotor of the drying member is driven to drive the residual liquid cleaning conveyer belt to rotate on the substrate, so that the residual liquid cleaning conveyer belt absorbs the residual alignment film cleaning liquid on the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981264.2A CN110687703B (en) | 2019-10-16 | 2019-10-16 | Repairing device and method for liquid crystal alignment film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910981264.2A CN110687703B (en) | 2019-10-16 | 2019-10-16 | Repairing device and method for liquid crystal alignment film |
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| CN110687703A true CN110687703A (en) | 2020-01-14 |
| CN110687703B CN110687703B (en) | 2022-05-31 |
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| CN102402074A (en) * | 2011-12-05 | 2012-04-04 | 深圳市华星光电技术有限公司 | Alignment film repairing system |
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| CN107577089A (en) * | 2017-09-18 | 2018-01-12 | 惠科股份有限公司 | The processing procedure and processing apparatus of a kind of display panel |
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| CN108057569A (en) * | 2018-01-03 | 2018-05-22 | 京东方科技集团股份有限公司 | A kind of alignment liquid coating equipment |
| CN109365346A (en) * | 2018-10-27 | 2019-02-22 | 焦玉林 | A kind of cleaning sterilizing device for Yoga mat |
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2019
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Patent Citations (8)
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| KR20050032155A (en) * | 2003-10-01 | 2005-04-07 | 엘지.필립스 엘시디 주식회사 | Apparatus and method printing alignment layer of liquid crystal display device |
| CN101840108A (en) * | 2009-03-20 | 2010-09-22 | 北京京东方光电科技有限公司 | Cleaning method of fragments of an alignment film of liquid crystal screen |
| CN102402074A (en) * | 2011-12-05 | 2012-04-04 | 深圳市华星光电技术有限公司 | Alignment film repairing system |
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| CN110687703B (en) | 2022-05-31 |
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