CN104765199A - Alignment device and alignment method - Google Patents
Alignment device and alignment method Download PDFInfo
- Publication number
- CN104765199A CN104765199A CN201510221281.8A CN201510221281A CN104765199A CN 104765199 A CN104765199 A CN 104765199A CN 201510221281 A CN201510221281 A CN 201510221281A CN 104765199 A CN104765199 A CN 104765199A
- Authority
- CN
- China
- Prior art keywords
- alignment
- alignment film
- orientation
- worktable
- liquid crystal
- 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.)
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Classifications
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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
- G02F1/133—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
Abstract
The invention discloses an alignment device and an alignment method. The alignment device conducts alignment on alignment film through generated electric fields. The alignment device comprises a workbench used for bearing the alignment film and an ultraviolet light source located above the workbench, wherein electrodes are arranged in the workbench, and the electrodes comprises cathodes and anodes; the alignment comprises the steps that the anodes and the cathodes form electric fields after being powered on, alignment is conducted on liquid crystal molecules of the alignment film through the electric fields, and a polymerization reaction is generated by the liquid crystal molecules of the alignment film to fix the aligned liquid crystal molecules by using the ultraviolet light source to illuminate the alignment film. The alignment method is used for conducting alignment on the alignment film, and the alignment device is provided. By means of the alignment device, the even electric fields can be generated to conduct alignment on the alignment film, due to the fact that the electrodes are arranged in the workbench, obstacles do not exist between the workbench and the ultraviolet light source, and therefore the liquid crystal molecules of the aligned alignment film are fixed more evenly.
Description
Technical field
The present invention relates to LCD alignment field, particularly relate to a kind of alignment apparatus and alignment method.
Background technology
At present, carry out orientation to the liquid crystal molecule in alignment film to comprise by magnetic field orientation, by electric field orientation with by light orientation.Wherein, two kinds: one is comprised for arranging two pieces of relative anode and cathode by the method for electric field orientation, during energising formation electric field, alignment film is placed between negative electrode and anode and carries out orientation, its shortcoming is that needs regulate the distance between anode and cathode according to size of substrate, and when alignment film is coated in large-size substrate (as the substrate that advanced lines line is produced, advanced lines line refers to the algebraically of production line, and algebraically is higher, the size of substrate is larger, even can reach 2 meters or 3 meters and above length) time, distance between two cube electrodes is very large to such an extent as to can not be formed evenly and can realize the electric field of orientation function, two lay respectively at alignment film upper and lower for negative electrode and anode, if need enough strong electric field, require that two cube electrodes are enough near, and electrode existence hinder ultraviolet source irradiation on alignment film, affects the fixed effect of the liquid crystal molecule after to alignment film orientation.
Therefore, the alignment apparatus uniformly with orientation function highfield can be produced desirable to provide a kind of, and this device can make ultraviolet source direct irradiation alignment film to improve fixed effect.
Summary of the invention
The invention provides a kind of alignment apparatus solve prior art medium ultraviolet light source can not the problem of direct irradiation alignment film, make irradiation light more directly evenly and make liquid crystal molecule fixed effect in the alignment film after orientation better; Alignment apparatus provided by the invention also solves the problem that can not generate uniform and stable orientation electric field at alignment apparatus existed in prior art, creates uniform and stable orientation electric field and achieves good orientation effect; Alignment method according to the present invention solves in prior art to exist and can not carry out orientation and the uneven problem of orientation.
According to an aspect of the present invention, provide a kind of alignment apparatus, this device carries out orientation by the electric field produced to alignment film; Wherein, this device comprises:
For carrying the worktable of alignment film, and be provided with electrode in described worktable, described electrode comprises negative electrode and anode;
Be positioned at the ultraviolet source above described worktable;
Wherein, described negative electrode and described anodal closure form electric field, described electric field to the liquid crystal alignment in alignment film, and by described ultraviolet source irradiation alignment film, make liquid crystal molecule polymerization reaction take place in alignment film with after fixing orientation liquid crystal molecule.
Alternatively, according to device of the present invention, described negative electrode and described anode are strip, and
Described negative electrode and described anode are parallel to each other and are arranged on the same plane in described worktable, and described plane is parallel for the table top placing alignment film with described worktable.
Alternatively, according to device of the present invention, this device at least comprises a negative electrode and an anode.
Alternatively, according to device of the present invention, described negative electrode and the distribution of described anode alternate intervals.
Alternatively, according to device of the present invention, the spacing distance between described negative electrode and described anode is 50 ~ 200 microns.
Alternatively, according to device of the present invention, bottom described worktable, be provided with turning axle, for driving described worktable rotary.
Alternatively, according to device of the present invention, bottom described worktable, being provided with the driving mechanism be connected with described turning axle, rotating for driving described turning axle.
According to a further aspect in the invention, provide a kind of alignment method, the method is used for carrying out orientation to alignment film, wherein, this method provides according to alignment apparatus of the present invention.
Alternatively, according to method of the present invention, the method comprises orientation step:
Described electrifying electrodes is formed electric field, by described electric field, orientation is carried out to the liquid crystal molecule in the alignment film be placed on described worktable.
Alternatively, according to method of the present invention, the fixing step that the method is carried out after being included in described orientation step further:
With described ultraviolet source irradiation alignment film, make liquid crystal molecule polymerization reaction take place in alignment film with after fixing orientation liquid crystal molecule.
Beneficial effect of the present invention is as follows:
Uniform electric field can be produced to alignment film orientation according to alignment apparatus of the present invention, and be arranged in worktable due to negative electrode and anode, make without hindrance thing between worktable and ultraviolet source, thus the liquid crystal molecule after alignment film orientation is fixed evenly; The better alignment film of all even fixed effect of orientation can be obtained according to alignment method of the present invention.
Accompanying drawing explanation
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 numeral is:
Alignment apparatus 100, worktable 110, lifting support portion 111, electrode 120, ultraviolet source 130 and turning axle 140.
Embodiment
Concrete embodiment is only explanation of the present invention, and does not form the restriction to content of the present invention, to be further described and to describe below in conjunction with accompanying drawing and concrete embodiment to the present invention.
According to alignment apparatus of the present invention, this device carries out orientation by the electric field produced to alignment film; Wherein, alignment apparatus as shown in Figure 1, this device carries out orientation by the electric field produced to alignment film; Wherein, this device comprises: for carrying the worktable 110 of alignment film, and be provided with electrode 120 in worktable 110, described electrode comprises negative electrode and anode; Be positioned at the ultraviolet source 130 above worktable 110; Wherein, negative electrode and anodal closure form electric field, and electric field to the liquid crystal alignment in alignment film, and irradiates alignment film by ultraviolet source 130, make liquid crystal molecule polymerization reaction take place in alignment film with after fixing orientation liquid crystal molecule.
According to alignment apparatus 100 of the present invention, electrode 120 is arranged in worktable 110, arranges ultraviolet source 130 above worktable, without other hampers between alignment film and ultraviolet source 130, the liquid crystal molecule of the alignment film after orientation is fixed evenly.On the table top of worktable 110, be provided with lifting support portion 111 in addition, lifting support portion 111 is risen, and is placed on by substrate in the plane that forms of lifting support portion 111, is then fallen lifting support portion 111, be placed on table top by substrate.In addition, in order to ensure use time safety, be coated with insulating protective layer at electrode exterior.Wherein, alignment film is coated on substrate, and therefore when carrying out orientation to alignment film, the substrate being about to coating alignment film is placed on worktable 110.Wherein ultraviolet source 130 is unpolarized light source, generation be 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 worktable 110, and plane is parallel for the table top placing alignment film with worktable 110.
According to the alignment apparatus of one embodiment of the present invention, electrode 120 is strip, and negative electrode and anode are arranged in parallel in parallel with the table top of worktable 110 plane, can form the electric field covering worktable 110 table top, can the even orientation to the alignment film be placed on table top.
According to one embodiment of the present invention, as shown in Figure 1, this device at least comprises a negative electrode and an anode.
According to one embodiment of the present invention, a negative electrode and anode are set in worktable 110 to ensure to form electric field; The highfield that multiple negative electrode and multiple anode then can form high electric frequency range is set in worktable, the alignment capability of liquid crystal molecule is strengthened, orientation better effects if.
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 of formation more even.
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 little and number of poles is many, can form uniform highfield, strengthens the alignment capability of liquid crystal molecule, therefore strengthens orientation effect.
According to one embodiment of the present invention, as shown in Figure 1, bottom worktable 110, being provided with turning axle 140, rotating for driving worktable 110.
According to the embodiment of the present invention, turning axle 140 is set and drives worktable 110 to rotate, to adjust the direction that electric field produces, change the orientation angle of liquid crystal molecule in alignment film.
According to one embodiment of the present invention, bottom worktable 110, being provided with the driving mechanism (not shown) be connected with turning axle 140, rotating for driving turning axle 140.
According to one embodiment of the present invention, driving mechanism driven rotary axle 140, turning axle drives worktable 110 to rotate, to adjust the generation direction of electric field.
According to a further aspect in the invention, provide a kind of alignment method, the method is used for carrying out orientation to alignment film, wherein, this method provides according to alignment apparatus of the present invention.
According to one embodiment of the present invention, the method comprises orientation step:
Electrifying electrodes is formed electric field, by electric field, orientation is carried out to the alignment film be placed on worktable 110.
According to orientation step of the present invention, when on the table top that the substrate being coated with alignment film is placed on worktable 110, negative electrode and anodal closure, define orientation electric field, makes the orientation molecule of alignment film carry out orientation according to the direction producing electric field.
According to another embodiment of the invention, the method comprises fixing step further:
Irradiate alignment film with ultraviolet source 130, make liquid crystal molecule polymerization reaction take place in alignment film with the liquid crystal molecule in the alignment film after fixing orientation.
According to alignment method of the present invention, use ultraviolet source irradiation alignment film, the polymerizable liquid-crvstalline molecule monomer in alignment film is polymerized, thus orientation molecule is fixed up.
According to The inventive process provides according to alignment apparatus of the present invention, uniform electric field can be produced, the uniform highfield produced makes the alignment capability of liquid crystal molecule strengthen, and the generation angle that can adjust electric field is as required to adjust alignment direction, typical alignment direction is that orientation molecule is parallel to electric field (as shown in Figure 3) perpendicular to electric field (as shown in Figure 2) and orientation molecule, but can regulate arbitrarily orientation angle as required; Without hindrance thing between the alignment apparatus ultraviolet source that method according to the present invention provides and alignment film, therefore ultraviolet light is evenly fixing to the liquid crystal molecule in alignment film.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an alignment apparatus, is characterized in that, this device carries out orientation by the electric field produced to alignment film; Wherein, this device comprises:
For carrying the worktable (110) of alignment film, and be provided with electrode (120) in described worktable (110), described electrode (120) comprises negative electrode and anode;
Be positioned at the ultraviolet source (130) of described worktable (110) top;
Wherein, described negative electrode and described anodal closure form electric field, described electric field to the liquid crystal alignment in alignment film, and irradiates alignment film by described ultraviolet source (130), make liquid crystal molecule polymerization reaction take place in alignment film with after fixing orientation liquid crystal molecule.
2. device as claimed in claim 1, it is characterized in that, described negative electrode and described anode are strip, and
Described negative electrode and described anode are parallel to each other and are arranged on the same plane in described worktable (110), and described plane is parallel for the table top placing alignment film with described worktable (110).
3. device as claimed in claim 2, it is characterized in that, this device at least comprises a negative electrode and an anode.
4. device as claimed in claim 3, is characterized in that, described negative electrode and the distribution of described anode alternate intervals.
5. device as claimed in claim 4, it is characterized in that, the spacing distance between described negative electrode and described anode is 50 ~ 200 microns.
6. device as claimed in claim 1, is characterized in that, described worktable (110) bottom is provided with turning axle (140), rotates for driving described worktable (110).
7. device as claimed in claim 6, is characterized in that, described worktable (110) bottom is provided with the driving mechanism be connected with described turning axle (140), rotates for driving described turning axle (140).
8. an alignment method, is characterized in that, the method be used for orientation is carried out to alignment film, wherein, this method provide as arbitrary in claim 1-7 as described in alignment apparatus.
9. method as claimed in claim 8, it is characterized in that, the method comprises orientation step:
Described electrode (120) energising is formed electric field, by described electric field, orientation is carried out to the liquid crystal molecule in the alignment film be placed on described worktable (110).
10. method as claimed in claim 9, is characterized in that, the fixing step that the method is carried out after being included in described orientation step further:
Irradiate alignment film with described ultraviolet source (130), make liquid crystal molecule polymerization reaction take place in alignment film with the liquid crystal molecule after fixing orientation.
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 true CN104765199A (en) | 2015-07-08 |
| CN104765199B CN104765199B (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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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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| Country | Link |
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| CN (1) | CN104765199B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093700A (en) * | 2015-09-17 | 2015-11-25 | 京东方科技集团股份有限公司 | Orientation device, display panel and display device |
| CN105425444A (en) * | 2015-12-17 | 2016-03-23 | 深圳市华星光电技术有限公司 | Manufacturing method of liquid crystal display panel |
| WO2018188163A1 (en) * | 2017-04-10 | 2018-10-18 | 深圳市华星光电半导体显示技术有限公司 | Optical alignment device and optical 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0915601A (en) * | 1995-06-28 | 1997-01-17 | Fujitsu Ltd | Method for reforming substance surface by irradiation of ultraviolet rays and ultraviolet irradiation device |
| CN1567066A (en) * | 1997-05-30 | 2005-01-19 | 三星电子株式会社 | Liquid crystal display |
| US20080030672A1 (en) * | 2006-08-01 | 2008-02-07 | Industrial Technology Research Institute | Liquid crystal (LC) alignment system |
| 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 |
-
2015
- 2015-05-04 CN CN201510221281.8A patent/CN104765199B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0915601A (en) * | 1995-06-28 | 1997-01-17 | Fujitsu Ltd | Method for reforming substance surface by irradiation of ultraviolet rays and ultraviolet irradiation device |
| CN1567066A (en) * | 1997-05-30 | 2005-01-19 | 三星电子株式会社 | Liquid crystal display |
| US20080030672A1 (en) * | 2006-08-01 | 2008-02-07 | Industrial Technology Research Institute | Liquid crystal (LC) alignment system |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093700A (en) * | 2015-09-17 | 2015-11-25 | 京东方科技集团股份有限公司 | Orientation device, display panel and display device |
| CN105425444A (en) * | 2015-12-17 | 2016-03-23 | 深圳市华星光电技术有限公司 | Manufacturing method of liquid crystal display panel |
| 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 |
| WO2018188163A1 (en) * | 2017-04-10 | 2018-10-18 | 深圳市华星光电半导体显示技术有限公司 | Optical alignment device and optical 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 |
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| Publication number | Publication date |
|---|---|
| CN104765199B (en) | 2018-01-02 |
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