CN105759509A - Display panel, alignment film and preparing method thereof - Google Patents
Display panel, alignment film and preparing method thereof Download PDFInfo
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- CN105759509A CN105759509A CN201610311051.5A CN201610311051A CN105759509A CN 105759509 A CN105759509 A CN 105759509A CN 201610311051 A CN201610311051 A CN 201610311051A CN 105759509 A CN105759509 A CN 105759509A
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- substrate
- alignment film
- sheet silicate
- acylamide polymer
- amide
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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 method for preparing an alignment film. The method comprises the steps that flaky silicate and a polymerization initiator are added into a solution containing an amide monomer, wherein the edge area of flaky silicate is of positive electricity, and the middle area is of negative electricity; a substrate is coated with the solution; on the preset technological condition, the amide monomer is subjected to polymerization under action of the polymerization initiator with flaky silicate serving as a cross-linking agent, and solidified on the substrate to form an amide polymer in a solidified state. The invention further discloses a display panel and the alignment film. By means of the mode, the problem that the alignment film is uneven in thickness is solved.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of display floater, alignment film and preparation method thereof.
Background technology
PI liquid refers to a kind of chemical liquid for making liquid crystal display alignment film, and PI liquid is printed on electro-conductive glass after overbaking becomes alignment film, it is possible to provide a tilt angle to liquid crystal molecule so that the direction of rotation concordance of liquid crystal molecule is better.
Existing PI liquid is in the process of pre-bake (preliminary drying, prebake), and the capillarity preferentially dried due to marginal area makes the alignment film of formation haloarea region (annular section, a kind of phenomenon in uneven thickness) easily occur.
Accordingly, it is desirable to provide a kind of display floater, alignment film and preparation method thereof, to solve above-mentioned technical problem.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of display floater, alignment film and preparation method thereof, it is possible to the problem avoiding alignment film uneven thickness.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of method preparing alignment film, the method includes: add sheet silicate and polymerization initiator in the solution containing amide-type monomer, and wherein the marginal area of sheet silicate is positive electricity and zone line is negative electricity；Solution is coated on substrate；Make amide-type monomer be served as cross-linking agent by sheet silicate under predetermined process conditions polymerization occurs under the effect of polymerization initiator and solidifies the acylamide polymer to form curdled appearance on substrate.
Wherein, the acylamide polymer forming curdled appearance on substrate includes: make amide-type monomer be served as cross-linking agent by sheet silicate under the first predetermined process conditions and the polymerization acylamide polymer to form gel state on substrate occurs；The solvent evaporation in the acylamide polymer of gel state is made to form the acylamide polymer of curdled appearance under the second predetermined process conditions.
Wherein, making amide-type monomer be served as cross-linking agent by sheet silicate under the first predetermined process conditions occurs the polymerization acylamide polymer to form gel state on substrate to include: make amide-type monomer be served as cross-linking agent by sheet silicate under ultraviolet light and the heating condition less than 70 degrees Celsius and the polymerization acylamide polymer to form gel state on substrate occurs.
Wherein, the acylamide polymer that the evaporation of the solvent in the acylamide polymer of gel state forms curdled appearance is made to include under the second predetermined process conditions: to make the solvent evaporation in the acylamide polymer of gel state form the acylamide polymer of curdled appearance under the heating condition more than 80 degrees Celsius.
Wherein, sheet silicate is hectorite.
Wherein, polymerization initiator is peroxide.
Wherein, it is coated on substrate by solution to include: be coated on substrate by solution and make solution levelling on substrate.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide a kind of alignment film, this alignment film includes acylamide polymer, acylamide polymer includes amide-type monomer and sheet silicate, amide-type monomer is served as cross-linking agent by sheet silicate and forms acylamide polymer, and the marginal area of sheet silicate is positive electricity and zone line is negative electricity.
Wherein, sheet silicate is hectorite.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide a kind of alignment film, this alignment film includes acylamide polymer, acylamide polymer includes amide-type monomer and sheet silicate, amide-type monomer is served as cross-linking agent by sheet silicate and forms acylamide polymer, and the marginal area of sheet silicate is positive electricity and zone line is negative electricity.
Wherein, sheet silicate is hectorite.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of display floater, this display floater includes two substrates, the liquid crystal being clamped between two substrates and the alignment film being arranged on substrate, and alignment film is the alignment film that above-mentioned any one describes.
The invention has the beneficial effects as follows: be different from the situation of prior art, the present invention by adding sheet silicate and polymerization initiator in the solution containing amide-type monomer, and wherein the marginal area of sheet silicate is positive electricity and zone line is negative electricity；Solution is coated on substrate；Make amide-type monomer be served as cross-linking agent by sheet silicate and the polymerization acylamide polymer to form curdled appearance on substrate occurs, by the way, it can be avoided that alignment film marginal area is preferentially dry causes capillarity, such that it is able to the problem avoiding alignment film uneven thickness.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method preparing alignment film of the present invention；
Fig. 2 is the structural representation of display floater of the present invention；
Fig. 3 is amide-type monomer polymerization gelation principle schematic of the present invention；
Fig. 4 is the CHARGE DISTRIBUTION schematic diagram of sheet silicate in the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be described in detail.
Referring to Fig. 1, Fig. 1 is the flow chart that the present invention prepares the method for alignment film.In the present embodiment, the method preparing alignment film comprises the following steps:
Step S11: add sheet silicate and polymerization initiator in the solution containing amide-type monomer, wherein the marginal area of sheet silicate is positive electricity and zone line is negative electricity.
In step s 11, amide-type monomer is the monomer of polyimides, such as anhydrides and amine, specifically, the such as aggregated reaction such as PMDA (PMDA) and diaminodiphenyl ether (DDE) can form the amide-type monomer of polyimides, certainly can also be other amide-type monomer in other embodiments, repeat no more herein.Sheet silicate is hectorite (laponite), i.e. lithium magnesium silicate.Polymerization initiator is preferably peroxide.In other embodiments, sheet silicate can also be other silicate, and polymerization initiator can also be other materials.
Step S12: solution is coated on substrate.
In step s 12, it is coated on substrate by solution to include: be coated on substrate by solution and make solution levelling (leveling) on substrate.
Step S13: make amide-type monomer be served as cross-linking agent by sheet silicate under predetermined process conditions and polymerization occurs under the effect of polymerization initiator and solidifies the acylamide polymer to form curdled appearance on substrate.
In step s 13, make amide-type monomer be served as cross-linking agent by sheet silicate under predetermined process conditions occurs polymerization the solidification acylamide polymer to form curdled appearance on substrate to include under the effect of polymerization initiator: make amide-type monomer be served as cross-linking agent by sheet silicate under the first predetermined process conditions and the polymerization acylamide polymer to form gel state on substrate occurs；The solvent evaporation in the acylamide polymer of gel state is made to form the acylamide polymer of curdled appearance under the second predetermined process conditions.Preferably, making amide-type monomer be served as cross-linking agent by sheet silicate under the first predetermined process conditions occurs the polymerization acylamide polymer to form gel state on substrate to include: make amide-type monomer be served as cross-linking agent by sheet silicate under ultraviolet light and the heating condition less than 70 degrees Celsius and the polymerization acylamide polymer to form gel state on substrate occurs.Preferably, the acylamide polymer that the evaporation of the solvent in the acylamide polymer of gel state forms curdled appearance is made to include under the second predetermined process conditions: to make the solvent evaporation in the acylamide polymer of gel state form the acylamide polymer of curdled appearance under the heating condition more than 80 degrees Celsius.The one layer of acylamide polymer formed on substrate is alignment film.Preferably, in the present embodiment, acylamide polymer is polyimides, in other embodiments, it is also possible to for other acylamide polymers, in the present embodiment, acylamide polymer is with ultraviolet photosensitive group.
Refer to Fig. 2, Fig. 3 and Fig. 4.Fig. 2 is the structural representation of display floater of the present invention.Fig. 3 is amide-type monomer polymerization gelation principle schematic of the present invention.Fig. 4 is the CHARGE DISTRIBUTION schematic diagram of sheet silicate in the present invention.In this example it is shown that panel includes two substrates 11, the liquid crystal 12 that is clamped between two substrates 11 and arrange alignment film 13 on the substrate 11, alignment film 13 is arranged on substrate 11 in the one side of liquid crystal 12.Two substrate 11 respectively colored filter substrates and thin-film transistor array base-plate.
Alignment film 13 includes acylamide polymer, acylamide polymer includes amide-type monomer 21 and sheet silicate 22, as shown in Figure 3, amide-type monomer 21 is served as cross-linking agent by sheet silicate 22 and forms acylamide polymer, the marginal area of sheet silicate 22 221 in positive electricity and zone line 222 in negative electricity.Preferably, in the present embodiment, acylamide polymer is polyimides, in other embodiments, can also be other acylamide polymers, in the present embodiment, acylamide polymer is with ultraviolet photosensitive group, and alignment film 13 can include the polymerization initiator that amide-type monomer remains when polyreaction.
Preferably, sheet silicate 22 is hectorite.
The present invention by adding sheet silicate and polymerization initiator in the solution containing amide-type monomer, and wherein the marginal area of sheet silicate is positive electricity and zone line is negative electricity；Solution is coated on substrate；Make amide-type monomer be served as cross-linking agent by sheet silicate under predetermined process conditions polymerization occurs under the effect of polymerization initiator and solidifies the acylamide polymer to form curdled appearance on substrate, by the way, it can be avoided that alignment film marginal area is preferentially dry causes capillarity, such that it is able to the problem avoiding alignment film uneven thickness.
It is only embodiments of the present invention on described; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (10)
1. the method preparing alignment film, it is characterised in that described method includes:
Adding sheet silicate and polymerization initiator in the solution containing amide-type monomer, the marginal area of wherein said sheet silicate is positive electricity and zone line is negative electricity；
Described solution is coated on substrate；
Make described amide-type monomer be served as cross-linking agent by described sheet silicate under predetermined process conditions polymerization occurs under the effect of described polymerization initiator and solidifies the acylamide polymer to form curdled appearance on the substrate.
2. method according to claim 1, it is characterised in that the acylamide polymer forming curdled appearance on the substrate includes:
Make described amide-type monomer be served as cross-linking agent by described sheet silicate under the first predetermined process conditions and the polymerization acylamide polymer to form gel state on the substrate occurs；
The solvent evaporation in the acylamide polymer of described gel state is made to form the acylamide polymer of curdled appearance under the second predetermined process conditions.
3. method according to claim 2, it is characterised in that described make described amide-type monomer be served as cross-linking agent by described sheet silicate under the first predetermined process conditions to occur the polymerization acylamide polymer to form gel state on the substrate to include:
Make described amide-type monomer be served as cross-linking agent by described sheet silicate under ultraviolet light and the heating condition less than 70 degrees Celsius and the polymerization acylamide polymer to form gel state on the substrate occurs.
4. method according to claim 2, it is characterised in that the solvent evaporation in the described acylamide polymer making described gel state under the second predetermined process conditions forms the acylamide polymer of curdled appearance and includes:
The solvent evaporation in the acylamide polymer of described gel state is made to form the acylamide polymer of curdled appearance under the heating condition more than 80 degrees Celsius.
5. method according to claim 1, it is characterised in that described sheet silicate is hectorite.
6. method according to claim 1, it is characterised in that described polymerization initiator is peroxide.
7. method according to claim 1, it is characterised in that described be coated on substrate by described solution to include:
Described solution is coated on substrate and makes described solution levelling on the substrate.
8. an alignment film, it is characterized in that, described alignment film includes acylamide polymer, described acylamide polymer includes amide-type monomer and sheet silicate, described amide-type monomer is served as cross-linking agent by described sheet silicate and forms described acylamide polymer, and the marginal area of described sheet silicate is positive electricity and zone line is negative electricity.
9. alignment film according to claim 8, it is characterised in that described sheet silicate is hectorite.
10. a display floater, it is characterised in that described display floater includes two substrates, the liquid crystal being clamped between two substrates and arranges alignment film on the substrate, and described alignment film is the alignment film described in claim 8-9 any one.
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| 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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| 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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| CN105759509A true CN105759509A (en) | 2016-07-13 |
| CN105759509B CN105759509B (en) | 2019-01-22 |
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Citations (5)
| 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 |
| US20120320308A1 (en) * | 2011-06-20 | 2012-12-20 | Jong-Souk Yeo | Transflective displays |
| 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 |
-
2016
- 2016-05-11 CN CN201610311051.5A patent/CN105759509B/en active Active
Patent Citations (5)
| 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 |
| US20120320308A1 (en) * | 2011-06-20 | 2012-12-20 | Jong-Souk Yeo | Transflective displays |
| 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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| CN105759509B (en) | 2019-01-22 |
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