CN105759509B - Display panel, alignment film and preparation method thereof - Google Patents
Display panel, alignment film and preparation method thereof Download PDFInfo
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- CN105759509B CN105759509B CN201610311051.5A CN201610311051A CN105759509B CN 105759509 B CN105759509 B CN 105759509B CN 201610311051 A CN201610311051 A CN 201610311051A CN 105759509 B CN105759509 B CN 105759509B
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- sheet silicate
- substrate
- alignment film
- acylamide polymer
- solution
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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
- G02F1/133711—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
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- 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)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Polymerisation Methods In General (AREA)
Abstract
The invention discloses a kind of methods for preparing alignment film, this method comprises: sheet silicate and polymerization initiator are added in the solution containing amides monomer, wherein the fringe region of sheet silicate is in negative electricity in positive electricity and intermediate region；Solution is coated on substrate；Make amides monomer serve as crosslinking agent by sheet silicate under predetermined process conditions to occur to polymerize and solidify to form the acylamide polymer of curdled appearance on substrate under the action of polymerization initiator.The invention also discloses a kind of display panel and alignment films.By the above-mentioned means, the present invention can be avoided the problem of orientation non-uniform film thickness.
Description
Technical field
The present invention relates to field of display technology, more particularly to a kind of display panel, alignment film and preparation method thereof.
Background technique
PI liquid refers to that a kind of chemical liquid for making liquid crystal display alignment film, PI liquid are printed on electro-conductive glass
Become alignment film after overbaking, a pre-tilt angle can be provided to liquid crystal molecule, so that the direction of rotation of liquid crystal molecule is consistent
Property is more preferable.
Existing PI liquid is during pre-bake (preliminary drying, prebake), since the capillary that fringe region is preferentially dried is made
With making the alignment film to be formed be easy to appear the region halo area (annular section, a kind of phenomenon in uneven thickness).
Accordingly, it is desirable to provide a kind of display panel, alignment film and preparation method thereof, to solve the above technical problems.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of display panels, alignment film and preparation method thereof, can keep away
The problem of exempting from orientation non-uniform film thickness.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of side preparing alignment film is provided
Method, this method comprises: sheet silicate and polymerization initiator are added in the solution containing amides monomer, wherein flaky silicic acid
The fringe region of salt is in negative electricity in positive electricity and intermediate region；Solution is coated on substrate；Make acyl under predetermined process conditions
Amine monomers serve as crosslinking agent by sheet silicate and occur to polymerize and solidify with the shape on substrate under the action of polymerization initiator
At the acylamide polymer of curdled appearance.
Wherein, the acylamide polymer for curdled appearance being formed on substrate includes: to make acyl under the first predetermined process conditions
Amine monomers serve as crosslinking agent by sheet silicate and polymerization occur to form the acylamide polymer of gel state on substrate；?
It evaporates the solvent in the acylamide polymer of gel state under second predetermined process conditions to form the amide of curdled appearance and birds of the same feather flock together
Close object.
Wherein, make under the first predetermined process conditions amides monomer by sheet silicate serve as crosslinking agent occur polymerization with
The acylamide polymer of formation gel state includes: to make acyl under the heating condition in ultraviolet light and less than 70 degrees Celsius on substrate
Amine monomers serve as crosslinking agent by sheet silicate and polymerization occur to form the acylamide polymer of gel state on substrate.
Wherein, the solvent in acylamide polymer for making gel state under the second predetermined process conditions evaporates to form solidification
The acylamide polymer of state includes: in the acylamide polymer for making gel state under the heating condition greater than 80 degrees Celsius
Solvent evaporates the acylamide polymer to form curdled appearance.
Wherein, sheet silicate is hectorite.
Wherein, polymerization initiator is peroxide.
Wherein, solution is coated in includes: that solution is coated on substrate and makes solution levelling on substrate on substrate.
In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of alignment film, the orientation
Film includes acylamide polymer, and acylamide polymer includes amides monomer and sheet silicate, and amides monomer is by sheet silicon
Hydrochlorate serves as crosslinking agent and forms acylamide polymer, and the fringe region of sheet silicate is in negative electricity in positive electricity and intermediate region.
Wherein, sheet silicate is hectorite.
In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of alignment film, the orientation
Film includes acylamide polymer, and acylamide polymer includes amides monomer and sheet silicate, and amides monomer is by sheet silicon
Hydrochlorate serves as crosslinking agent and forms acylamide polymer, and the fringe region of sheet silicate is in negative electricity in positive electricity and intermediate region.
Wherein, sheet silicate is hectorite.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of display panel is provided, the display
Panel includes two substrates, the liquid crystal being clamped between two substrates and the alignment film being disposed on the substrate, and alignment film is upper
State the alignment film of any one description.
The beneficial effects of the present invention are: being in contrast to the prior art, the present invention is by containing amides monomer
Sheet silicate and polymerization initiator are added in solution, wherein the fringe region of sheet silicate is in positive electricity and intermediate region is in negative
Electricity；Solution is coated on substrate；So that amides monomer is served as crosslinking agent by sheet silicate and polymerization occurs with the shape on substrate
At the acylamide polymer of curdled appearance, by the above-mentioned means, can be avoided alignment film fringe region, preferentially drying causes capillary
Effect, so as to avoid the problem that orientation non-uniform film thickness.
Detailed description of the invention
Fig. 1 is the flow chart of the method for preparing alignment film of the invention；
Fig. 2 is the structural schematic diagram the invention shows panel；
Fig. 3 is amides monomer polymerization gelation schematic illustration of the present invention；
Fig. 4 is the distribution of charges schematic diagram of sheet silicate in the present invention.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to Fig. 1, Fig. 1 is the flow chart for the method that the present invention prepares alignment film.In the present embodiment, alignment film is prepared
Method the following steps are included:
Step S11: sheet silicate and polymerization initiator are added in the solution containing amides monomer, wherein sheet silicon
The fringe region of hydrochlorate is in negative electricity in positive electricity and intermediate region.
In step s 11, amides monomer is the monomer of polyimides, such as anhydride and amine, specifically, such as benzene
The aggregated reaction such as tetracarboxylic acid dianhydride (PMDA) and diaminodiphenyl ether (DDE) can form the amides monomer of polyimides, when
So it is also possible to other amides monomers in other embodiments, details are not described herein again.Sheet silicate is hectorite
(laponite), i.e. lithium magnesium silicate.Polymerization initiator is preferably peroxide.In other embodiments, sheet silicate can also
Think that other silicates, polymerization initiator may be other substances.
Step S12: solution is coated on substrate.
In step s 12, solution is coated in includes: that solution is coated on substrate and makes solution on substrate on substrate
Levelling (leveling).
Step S13: so that amides monomer is served as crosslinking agent by sheet silicate under predetermined process conditions and draw in polymerization
Occur to polymerize and solidify to form the acylamide polymer of curdled appearance on substrate under the action of hair agent.
In step s 13, amides monomer is made to serve as crosslinking agent poly- by sheet silicate under predetermined process conditions
Occurring to polymerize and solidify to form the acylamide polymer of curdled appearance on substrate under the action of conjunction initiator includes: first
So that amides monomer is served as crosslinking agent by sheet silicate under predetermined process conditions and polymerization occurs to form gel on substrate
The acylamide polymer of state；The solvent in acylamide polymer for making gel state under the second predetermined process conditions evaporates to be formed
The acylamide polymer of curdled appearance.Preferably, fill amides monomer by sheet silicate under the first predetermined process conditions
It include: in ultraviolet light and Celsius less than 70 when polymerization occurs for crosslinking agent with the acylamide polymer for forming gel state on substrate
So that amides monomer is served as crosslinking agent by sheet silicate under the heating condition of degree and polymerization occurs to form gel on substrate
The acylamide polymer of state.Preferably, the solvent in acylamide polymer for making gel state under the second predetermined process conditions
The acylamide polymer that evaporation forms curdled appearance includes: the amide for making gel state under the heating condition greater than 80 degrees Celsius
Solvent in quasi polymer evaporates the acylamide polymer to form curdled appearance.The one layer of acylamide polymer formed on substrate is i.e.
For alignment film.Preferably, in the present embodiment, acylamide polymer is polyimides, in other embodiments, or its
His acylamide polymer, in the present embodiment, acylamide polymer have ultraviolet light photosensitive group.
Please refer to Fig. 2, Fig. 3 and Fig. 4.Fig. 2 is the structural schematic diagram the invention shows panel.Fig. 3 is amide of the present invention
Class monomer polymerization gelation schematic illustration.Fig. 4 is the distribution of charges schematic diagram of sheet silicate in the present invention.In the present embodiment
In, display panel includes two substrates 11, the liquid crystal 12 being clamped between two substrates 11 and setting matching on the substrate 11
To film 13, substrate 11 is arranged in the one side of liquid crystal 12 in alignment film 13.Two substrates 11 are respectively colored filter substrate
And thin-film transistor array base-plate.
Alignment film 13 includes acylamide polymer, and acylamide polymer includes amides monomer 21 and sheet silicate 22,
As shown in figure 3, amides monomer 21, which serves as crosslinking agent by sheet silicate 22, forms acylamide polymer, sheet silicate 22
Fringe region 221 is in negative electricity in positive electricity and intermediate region 222.Preferably, in the present embodiment, acylamide polymer is that polyamides is sub-
Amine, in other embodiments, or other acylamide polymers, in the present embodiment, acylamide polymer is with ultraviolet
Line photosensitive group, alignment film 13 may include amides monomer remaining polymerization initiator in polymerization reaction.
Preferably, sheet silicate 22 is hectorite.
The present invention in the solution containing amides monomer by being added sheet silicate and polymerization initiator, wherein sheet
The fringe region of silicate is in negative electricity in positive electricity and intermediate region；Solution is coated on substrate；Under predetermined process conditions
Make amides monomer serve as crosslinking agent by sheet silicate to occur to polymerize and solidify in substrate under the action of polymerization initiator
The upper acylamide polymer for forming curdled appearance, by the above-mentioned means, can be avoided alignment film fringe region, preferentially drying causes
Capillarity, so as to avoid the problem that orientation non-uniform film thickness.
With the upper only embodiments of the present invention, it is not intended to limit the scope of the invention, it is all to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (5)
1. a kind of method for preparing alignment film, which is characterized in that the described method includes:
Sheet silicate and polymerization initiator are added in the solution containing amides monomer, wherein the side of the sheet silicate
Edge region is in negative electricity in positive electricity and intermediate region；
The solution is coated on substrate；
The amides monomer is set to serve as friendship by the sheet silicate under ultraviolet light and heating condition less than 70 degrees Celsius
Polymerization occurs under the action of the polymerization initiator for connection agent to form the acylamide polymer of gel state on the substrate；
Evaporated greater than the solvent in the acylamide polymer for making the gel state under 80 degrees Celsius of heating condition to be formed it is solidifying
The acylamide polymer of solid fraction state；
Wherein, the sheet silicate is hectorite.
2. the method according to claim 1, wherein the polymerization initiator is peroxide.
3. the method according to claim 1, wherein the described solution is coated on substrate includes:
The solution is coated on substrate and makes solution levelling on the substrate.
4. a kind of alignment film, which is characterized in that the alignment film includes acylamide polymer, and the acylamide polymer includes acyl
Amine monomers and sheet silicate, the amides monomer, which by the sheet silicate serves as crosslinking agent and forms the amide, birdss of the same feather flock together
Object is closed, the fringe region of the sheet silicate is in negative electricity in positive electricity and intermediate region, wherein the sheet silicate is lithium soap
Stone.
5. a kind of display panel, which is characterized in that the display panel includes two substrates, the liquid being clamped between two substrates
The alignment film of brilliant and setting on the substrate, the alignment film are alignment film as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311051.5A CN105759509B (en) | 2016-05-11 | 2016-05-11 | Display panel, alignment film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311051.5A CN105759509B (en) | 2016-05-11 | 2016-05-11 | Display panel, alignment film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105759509A CN105759509A (en) | 2016-07-13 |
| CN105759509B true CN105759509B (en) | 2019-01-22 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818764A (en) * | 2005-02-07 | 2006-08-16 | Lg.菲利浦Lcd株式会社 | Method and apparatus of forming alignment layer for liquid crystal display device |
| CN101162331A (en) * | 2006-10-10 | 2008-04-16 | 三星电子株式会社 | Alignment material and liquid crystal display using the same |
| CN101868742A (en) * | 2007-11-30 | 2010-10-20 | 日东电工株式会社 | Polarizer, process for producing the same, optical film, and image display |
| CN103064217A (en) * | 2011-10-20 | 2013-04-24 | 三星显示有限公司 | Liquid crystal display device, alignment film, and method for manufacturing same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120320308A1 (en) * | 2011-06-20 | 2012-12-20 | Jong-Souk Yeo | Transflective displays |
-
2016
- 2016-05-11 CN CN201610311051.5A patent/CN105759509B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818764A (en) * | 2005-02-07 | 2006-08-16 | Lg.菲利浦Lcd株式会社 | Method and apparatus of forming alignment layer for liquid crystal display device |
| CN101162331A (en) * | 2006-10-10 | 2008-04-16 | 三星电子株式会社 | Alignment material and liquid crystal display using the same |
| CN101868742A (en) * | 2007-11-30 | 2010-10-20 | 日东电工株式会社 | Polarizer, process for producing the same, optical film, and image display |
| CN103064217A (en) * | 2011-10-20 | 2013-04-24 | 三星显示有限公司 | Liquid crystal display device, alignment film, and method for manufacturing same |
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| CN105759509A (en) | 2016-07-13 |
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