CN104765199B - A kind of alignment apparatus and alignment method - Google Patents
A kind of alignment apparatus and alignment method Download PDFInfo
- Publication number
- CN104765199B CN104765199B CN201510221281.8A CN201510221281A CN104765199B CN 104765199 B CN104765199 B CN 104765199B CN 201510221281 A CN201510221281 A CN 201510221281A CN 104765199 B CN104765199 B CN 104765199B
- Authority
- CN
- China
- Prior art keywords
- alignment film
- workbench
- alignment
- electric field
- liquid crystal
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- 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.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—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
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
-
- 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
- G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of alignment apparatus and alignment method.Orientation is carried out to alignment film by caused electric field according to the alignment apparatus of the present invention；Wherein, the device includes：For carrying the workbench of alignment film, and electrode is provided with the workbench, the electrode includes negative electrode and anode；Ultraviolet source above the workbench；Wherein, the negative electrode and the anodal closure form electric field, and the electric field makes the liquid crystal molecule in alignment film that polymerisation occur with fixed with liquid crystal molecule backward to the liquid crystal alignment in alignment film, and by the ultraviolet source irradiation alignment film.It is used to carry out orientation to alignment film according to the alignment method of the present invention, this method provide the alignment apparatus according to the present invention.Uniform electric field can be produced to alignment film orientation according to the alignment apparatus of the present invention, and because electrode is arranged in workbench, make without hindrance thing between workbench and ultraviolet source, so that alignment film is fixed evenly with liquid crystal molecule backward.
Description
Technical field
The present invention relates to LCD alignment field, more particularly to a kind of alignment apparatus and alignment method.
Background technology
At present, orientation is carried out to the liquid crystal molecule in alignment film includes by magnetic field orientation, by electric field orientation and passes through
Light orientation.Wherein, two kinds are included by the method for electric field orientation：One is sets two pieces of relative anode and cathodes, and energization forms electric field
When alignment film be placed between negative electrode and anode carry out orientation, its shortcoming is to need to be adjusted between anode and cathode according to size of substrate
Distance, and coated in large-size substrate, (such as the substrate of advanced lines line production, advanced lines line refer to the generation of production line when alignment film
Number, and algebraically is higher, and the size of substrate is bigger, or even can reach the length of 2 meters or 3 meters and the above) when, between two pieces of electrodes
Distance is very big so that it cannot be formed uniformly and can realize the electric field of orientation function；Two be that negative electrode and anode are located at orientation respectively
Film upper and lower, require that two pieces of electrodes are near enough if the sufficiently strong electric field of need, and electrode presence hinders ultraviolet source irradiation and existed
On alignment film, influence to fixed effect of the alignment film with liquid crystal molecule backward.
Accordingly, it is desirable to provide a kind of can produce the alignment apparatus uniformly with orientation function highfield, and the device energy
Ultraviolet source direct irradiation alignment film is set to improve fixed effect.
The content of the invention
Solve ultraviolet source in the prior art the invention provides a kind of alignment apparatus and be unable to direct irradiation alignment film
Problem, irradiation light is set more directly evenly and to make more preferable with liquid crystal molecule fixed effect in alignment film backward；The present invention carries
The alignment apparatus of confession also solves can not generate asking for uniform and stable orientation electric field in alignment apparatus present in prior art
Topic, generating uniform and stable orientation electric field realizes good orientation effect；Solved according to the alignment method of the present invention existing
There is the problem of presence can not carry out orientation and uneven orientation in technology.
According to an aspect of the present invention, there is provided a kind of alignment apparatus, the device are entered by caused electric field to alignment film
Row orientation；Wherein, the device includes：
For carrying the workbench of alignment film, and electrode is provided with the workbench, the electrode includes negative electrode and sun
Pole；
Ultraviolet source above the workbench；
Wherein, the negative electrode and the anodal closure form electric field, the electric field to the liquid crystal alignment in alignment film,
And by the ultraviolet source irradiation alignment film, make the liquid crystal molecule in alignment film that polymerisation occur and matched somebody with somebody backward with fixed
Liquid crystal molecule.
Alternatively, the apparatus according to the invention, the negative electrode and the anode are strip, and
The negative electrode and the anode are parallel to each other and are arranged on the same plane in the workbench, the plane with
The table top for being used to place alignment film of the workbench is parallel.
Alternatively, the apparatus according to the invention, the device comprise at least a negative electrode and an anode.
Alternatively, the apparatus according to the invention, the negative electrode and anode alternate intervals distribution.
Alternatively, the apparatus according to the invention, the spacing distance between the negative electrode and the anode are micro- for 50~200
Rice.
Alternatively, the apparatus according to the invention, the workbench bottom is provided with rotary shaft, for driving the workbench
Rotation.
Alternatively, the apparatus according to the invention, the workbench bottom are provided with the driving machine with the rotation axis connection
Structure, for driving the rotary shaft to be rotated.
According to another aspect of the present invention, there is provided a kind of alignment method, this method are used to carry out orientation to alignment film, its
In, it this method provide the alignment apparatus according to the present invention.
Alternatively, the method according to the invention, this method include orientation step：
The electrode is powered to forming electric field, by the electric field to the liquid that is placed in the alignment film on the workbench
Brilliant molecule carries out orientation.
Alternatively, the method according to the invention, this method further comprise the fixation carried out after the orientation step
Step：
With the ultraviolet source irradiation alignment film, make the liquid crystal molecule in alignment film that polymerisation occur with fixed with backward
Liquid crystal molecule.
The present invention has the beneficial effect that：
Uniform electric field can be produced to alignment film orientation according to the alignment apparatus of the present invention, and because negative electrode and anode are set
In workbench, make without hindrance thing between workbench and ultraviolet source, so that alignment film is more equal with liquid crystal molecule fixation backward
It is even；The uniform more preferable alignment film of fixed effect of orientation can be obtained according to the alignment method of the present invention.
Brief description of the drawings
Fig. 1 is the electric field alignment apparatus according to one embodiment of the present invention；
Fig. 2 is the electric field orientation schematic diagram according to one embodiment of the present invention；
Fig. 3 is the electric field orientation schematic diagram according to one embodiment of the present invention.
Wherein, reference is：
Alignment apparatus 100, workbench 110, lifting supporting part 111, electrode 120, ultraviolet source 130 and rotary shaft 140.
Embodiment
Specific embodiment is only the description of the invention, below will knot without forming the limitation to present invention
Close accompanying drawing and specific embodiment is further described and described to the present invention.
According to the alignment apparatus of the present invention, the device carries out orientation by caused electric field to alignment film；Wherein, such as Fig. 1
The alignment apparatus shown, the device carry out orientation by caused electric field to alignment film；Wherein, the device includes：For carrying
The workbench 110 of alignment film, and electrode 120 is provided with workbench 110, the electrode includes negative electrode and anode；Positioned at work
The ultraviolet source 130 of the top of platform 110；Wherein, negative electrode and anodal closure form electric field, and electric field is to the liquid crystal molecule distributing in alignment film
To, and by the irradiation alignment film of ultraviolet source 130, make the liquid crystal molecule in alignment film that polymerisation occur with fixed with backward
Liquid crystal molecule.
According to the alignment apparatus 100 of the present invention, electrode 120 is arranged in workbench 110, and ultraviolet light is set above workbench
Source 130, without other obstructions between alignment film and ultraviolet source 130, the liquid crystal molecule with alignment film backward is set to fix more
Uniformly.Lifting supporting part 111 is provided with the table top of workbench 110 in addition, lifting supporting part 111 rises, substrate is placed
In the plane that lifting supporting part 111 forms, then lifting supporting part 111 is fallen, placed a substrate on table top.In addition,
In order to ensure safety when using, insulating protective layer is coated with electrode exterior.Wherein, alignment film is coated on substrate, because
, when carrying out orientation to alignment film, the substrate that will coat alignment film is placed on workbench 110 for this.Wherein ultraviolet source 130
For unpolarized light source, caused is unpolarized ultraviolet light.
According to the alignment apparatus of one embodiment of the present invention, as shown in figure 1, negative electrode and anode are strip, and
Negative electrode and anode are parallel to each other and are arranged on the same plane in workbench 110, and plane is used to place orientation with workbench 110
The table top of film is parallel.
According to the alignment apparatus of one embodiment of the present invention, electrode 120 is strip, and negative electrode and anode are parallel to each other
It is arranged in the plane parallel with the table top of workbench 110, the electric field of the covering table top of workbench 110 can be formed, can be to putting
Put the uniform orientation of alignment film on table top.
According to one embodiment of the present invention, as shown in figure 1, the device comprises at least a negative electrode and an anode.
According to one embodiment of the present invention, a negative electrode and an anode is set to ensure shape in workbench 110
Into electric field；Set multiple negative electrodes and multiple anodes then to form the highfield of high electric frequency range in workbench, make liquid crystal molecule
Alignment capability strengthens, and orientation effect is more preferable.
According to one embodiment of the present invention, as shown in figure 1, negative electrode and the distribution of anode alternate intervals.
According to one embodiment of the present invention, negative electrode and the distribution of anode alternate intervals, make the electric field to be formed more uniform.
According to one embodiment of the present invention, the spacing distance between negative electrode and anode is 5-~200 micron.
According to one embodiment of the present invention, the spacing distance between negative electrode and anode is small and number of poles is more, can be with
Uniform highfield is formed, strengthens the alignment capability of liquid crystal molecule, therefore strengthen orientation effect.
According to one embodiment of the present invention, as shown in figure 1, the bottom of workbench 110 is provided with rotary shaft 140, it is used for
Workbench 110 is driven to rotate.
According to the embodiment of the present invention, rotary shaft 140 is set to drive workbench 110 to rotate, to adjust caused by electric field
Direction, change the orientation angle of liquid crystal molecule in alignment film.
According to one embodiment of the present invention, the bottom of workbench 110 is provided with the drive mechanism being connected with rotary shaft 140
(not shown), for driving rotary shaft 140 to be rotated.
According to one embodiment of the present invention, drive mechanism drives rotary shaft 140, and rotary shaft drives workbench 110 to revolve
Turn, to adjust the generation direction of electric field.
According to another aspect of the present invention, there is provided a kind of alignment method, this method are used to carry out orientation to alignment film, its
In, it this method provide the alignment apparatus according to the present invention.
According to one embodiment of the present invention, this method includes orientation step：
Electrode is powered to forming electric field, orientation is carried out to the alignment film being placed on workbench 110 by electric field.
It is cloudy when the substrate coated with alignment film is placed on the table top of workbench 110 according to the orientation step of the present invention
Pole and anodal closure, orientation electric field is formd, the orientation molecule of alignment film is carried out orientation according to the direction for producing electric field.
According to another embodiment of the invention, this method further comprises fixing step：
Alignment film is irradiated with ultraviolet source 130, makes the liquid crystal molecule in alignment film that polymerisation occur with fixed with backward
Alignment film in liquid crystal molecule.
According to the alignment method of the present invention, with ultraviolet source irradiation alignment film, make the polymerizable liquid-crvstalline point in alignment film
Sub- monomer polymerization, so as to which orientation molecule be fixed up.
The method according to the invention provides the alignment apparatus according to the present invention, can produce uniform electric field, caused
Uniform highfield strengthens the alignment capability of liquid crystal molecule, and the generation angle that can adjust electric field as needed is matched somebody with somebody with adjusting
To direction, typical alignment direction is that orientation molecule (is such as schemed perpendicular to electric field (as shown in Figure 2) and orientation molecule parallel to electric field
Shown in 3), but any regulation can be carried out to orientation angle as needed；The alignment apparatus that the method according to the invention provides
Without hindrance thing between ultraviolet source and alignment film, therefore ultraviolet light is fixed uniformly to the liquid crystal molecule in alignment film.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
1. a kind of alignment apparatus, it is characterised in that the device carries out orientation by caused electric field to alignment film；Wherein, the dress
Put including：
For carrying the workbench (110) of alignment film, and electrode (120), the electrode are provided with the workbench (110)
(120) negative electrode and anode are included；
Ultraviolet source (130) above the workbench (110)；
Wherein, the negative electrode and the anodal closure form electric field, the electric field to the liquid crystal alignment in alignment film, and
Alignment film is irradiated by the ultraviolet source (130), makes the liquid crystal molecule in alignment film that polymerisation occur with fixed with backward
Liquid crystal molecule；
Spacing distance between the negative electrode and the anode is 50~200 microns；
Workbench (110) bottom is provided with rotary shaft (140), for driving the workbench (110) to rotate.
2. device as claimed in claim 1, it is characterised in that the negative electrode and the anode are strip, and
The negative electrode and the anode are parallel to each other and are arranged on the same plane in the workbench (110), the plane
It is parallel with the table top for being used to place alignment film of the workbench (110).
3. device as claimed in claim 2, it is characterised in that the device comprises at least a negative electrode and an anode.
4. device as claimed in claim 3, it is characterised in that the negative electrode and anode alternate intervals distribution.
5. device as claimed in claim 1, it is characterised in that workbench (110) bottom is provided with and the rotary shaft
(140) drive mechanism of connection, for driving the rotary shaft (140) to be rotated.
A kind of 6. alignment method, it is characterised in that this method be used for alignment film carry out orientation, wherein, this method provide as
Any alignment apparatus of claim 1-5.
7. method as claimed in claim 6, it is characterised in that this method includes orientation step：
The electrode (120) is powered and forms electric field, by the electric field to the alignment film that is placed on the workbench (110)
In liquid crystal molecule carry out orientation.
8. method as claimed in claim 7, it is characterised in that this method further comprises carrying out after the orientation step
Fixing step：
Alignment film is irradiated with the ultraviolet source (130), makes the liquid crystal molecule in alignment film that polymerisation occur to fix orientation
Liquid crystal molecule afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510221281.8A CN104765199B (en) | 2015-05-04 | 2015-05-04 | A kind of alignment apparatus and alignment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510221281.8A CN104765199B (en) | 2015-05-04 | 2015-05-04 | A kind of alignment apparatus and alignment method |
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| Publication Number | Publication Date |
|---|---|
| CN104765199A CN104765199A (en) | 2015-07-08 |
| CN104765199B true CN104765199B (en) | 2018-01-02 |
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| CN201510221281.8A Expired - Fee Related CN104765199B (en) | 2015-05-04 | 2015-05-04 | A kind of alignment apparatus and alignment method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093700B (en) * | 2015-09-17 | 2019-01-22 | 京东方科技集团股份有限公司 | A kind of aligning device, display panel and display device |
| CN105425444B (en) * | 2015-12-17 | 2018-05-11 | 深圳市华星光电技术有限公司 | A kind of production method of liquid crystal display panel |
| CN106842717A (en) * | 2017-04-10 | 2017-06-13 | 深圳市华星光电技术有限公司 | Light alignment apparatus and light alignment method |
| US10509265B2 (en) | 2017-04-10 | 2019-12-17 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Photo-alignment apparatus and photo-alignment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567066A (en) * | 1997-05-30 | 2005-01-19 | 三星电子株式会社 | Liquid crystal display |
| CN202548357U (en) * | 2012-04-26 | 2012-11-21 | 京东方科技集团股份有限公司 | Electrical orientation equipment |
| CN103033988A (en) * | 2011-09-30 | 2013-04-10 | 群康科技(深圳)有限公司 | Optical alignment device of alignment film and manufacturing method of alignment film |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3588703B2 (en) * | 1995-06-28 | 2004-11-17 | 富士通ディスプレイテクノロジーズ株式会社 | Method for modifying material surface by ultraviolet light irradiation and ultraviolet light irradiation device |
| TW200809351A (en) * | 2006-08-01 | 2008-02-16 | Ind Tech Res Inst | Method for fabricating liquid crystal (LC) alignment |
-
2015
- 2015-05-04 CN CN201510221281.8A patent/CN104765199B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567066A (en) * | 1997-05-30 | 2005-01-19 | 三星电子株式会社 | Liquid crystal display |
| CN103033988A (en) * | 2011-09-30 | 2013-04-10 | 群康科技(深圳)有限公司 | Optical alignment device of alignment film and manufacturing method of alignment film |
| CN202548357U (en) * | 2012-04-26 | 2012-11-21 | 京东方科技集团股份有限公司 | Electrical orientation equipment |
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| CN104765199A (en) | 2015-07-08 |
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