CN113589593B - Material of alignment layer, preparation method of material and display panel - Google Patents
Material of alignment layer, preparation method of material and display panel Download PDFInfo
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- CN113589593B CN113589593B CN202110765315.5A CN202110765315A CN113589593B CN 113589593 B CN113589593 B CN 113589593B CN 202110765315 A CN202110765315 A CN 202110765315A CN 113589593 B CN113589593 B CN 113589593B
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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
Abstract
The embodiment of the application discloses a material of an alignment layer, a preparation method thereof and a display panel, wherein the material of the alignment layer comprises nano particles and polyimide, the nano particles comprise a core layer, a first outer layer coating the core layer and a second outer layer coating the first outer layer, the material of the core layer comprises a semiconductor polymer, the material of the first outer layer comprises aggregation-induced emission dye, and the material of the second outer layer comprises an amphiphilic triblock copolymer. The alignment layer in the display panel is formed by adopting the material of the alignment layer, so that the film forming condition of the formed alignment layer can be detected through nano particles, and the detection efficiency of the film forming condition of the formed alignment layer is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a material of an alignment layer, a preparation method of the material and a display panel.
Background
Polymer stabilized vertical alignment (polymer stabilized vertical alignment, PS-VA) is a technique in the field of thin film transistor liquid crystal display devices (Thin film transistor liquid crystal display, TFT-LCD). In the box forming process of PS-VA, polyimide needs to be coated on the color film substrate and the array substrate to form an alignment film, so as to control the arrangement direction of liquid crystal molecules. The alignment film layer structure with high performance needs to have good printability, and polyimide liquid is often required to be leveled on a substrate, and a film with uniform thickness can be formed after heating.
The alignment film is generally formed by an inkjet printing method, and since the polyimide liquid dropped in the inkjet printing method is in the form of droplets and has a strong fluidity, the form before the curing has a great influence on the polyimide film. In some cases, the polyimide component collocation or the polyimide solvent system may have poor edge and corner linearity, which may cause various defects such as uneven polyimide flow and peripheral stripes caused by uneven polyimide edge film thickness. In order to avoid such situations, the alignment film is usually detected before the product leaves the factory, but the current method for detecting the film forming situation of the alignment film is complicated, which is unfavorable for rapidly detecting the film forming situation of the alignment film.
Disclosure of Invention
The embodiment of the application provides a material of an alignment layer, a preparation method thereof and a display panel, and can improve the detection efficiency of the film forming condition of the alignment layer.
The embodiment of the application provides a material of alignment layer, the material of alignment layer includes nanoparticle and polyimide, wherein, the nanoparticle includes the nuclear layer, cladding the first skin of nuclear layer and cladding the second skin of first skin, the material of nuclear layer includes the semiconductor polymer, the material of first skin includes aggregation-induced emission dyestuff, the material of second skin includes amphipathic triblock copolymer.
Optionally, in some embodiments of the present application, the mass ratio of the nanoparticle to the polyimide is 1: (10-50).
Optionally, in some embodiments of the present application, the amphiphilic triblock copolymer is selected from one or a combination of several of polyacrylic acid-poly beta-hydroxybutyrate-polyacrylic acid, styrene-polyethylene glycol-styrene, and polyethylene glycol-polycaprolactone-polyethylene glycol.
Alternatively, in some embodiments of the present application, the aggregation-inducing luminescent dye is selected from the group consisting of
/>
Alternatively, in some embodiments of the present application, the semiconducting polymer is selected from
Optionally, in some embodiments of the present application, the mass ratio of the semiconducting polymer, the aggregation-inducing luminescent dye, and the amphiphilic triblock copolymer is (1-5): (0.5-1): (95-105).
The embodiment of the application also provides a preparation method of the material of the alignment layer, which comprises the following steps:
providing nanoparticles and polyimide, wherein the nanoparticles and polyimide are mixed to form an alignment layer material, the nanoparticles comprise a core layer, a first outer layer coating the core layer, and a second outer layer coating the first outer layer, the core layer material comprises a semiconductor polymer, the first outer layer material comprises an aggregation-induced emission dye, and the second outer layer material comprises an amphiphilic triblock copolymer.
Optionally, in some embodiments of the present application, the mass ratio of the nanoparticle to the polyimide is 1: (10-50).
Optionally, in some embodiments of the present application, in providing a nanoparticle and a polyimide, the nanoparticle and the polyimide being mixed to form a material of an alignment layer, the nanoparticle including a core layer, a first outer layer coating the core layer, and a second outer layer coating the first outer layer, the material of the core layer including a semiconducting polymer, the material of the first outer layer including an aggregation-induced emission dye, the material of the second outer layer including an amphiphilic triblock copolymer, the step of comprising:
providing an amphiphilic triblock copolymer, an aggregation-induced emission dye and a semiconductor polymer, wherein the amphiphilic triblock copolymer, the aggregation-induced emission dye and the semiconductor polymer react in a solvent to form nanoparticles;
the solvent comprises one or a combination of more of tetrahydrofuran, N-methyl pyrrolidone, hexylamine, pentanone and methyl acetate.
The embodiment of the application also provides a display panel, which comprises:
an array substrate;
the color film substrate is arranged opposite to the array substrate; and
the liquid crystal box is arranged between the array substrate and the color film substrate, the liquid crystal box comprises an alignment layer and a liquid crystal layer, the alignment layer is arranged between the liquid crystal layer and the array substrate and/or between the color film substrates, and the alignment layer is made of the material of the alignment layer.
The embodiment of the application discloses a material of an alignment layer, a preparation method of the material of the alignment layer and a display panel, wherein the material of the alignment layer comprises nano particles and polyimide, the nano particles comprise a core layer, a first outer layer coating the core layer and a second outer layer coating the first outer layer, the material of the core layer comprises a semiconductor polymer, the material of the first outer layer comprises aggregation-induced emission dye, and the material of the second outer layer comprises an amphiphilic triblock copolymer. The alignment layer in the display panel is formed by adopting the material of the alignment layer, so that the film forming condition of the formed alignment layer can be detected by nano particles in the material of the alignment layer, and the detection efficiency of the film forming condition of the alignment layer is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of nanoparticles of an alignment layer according to an embodiment of the present application.
Fig. 2 is a schematic diagram of energy conversion between materials of an alignment layer according to an embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The embodiment of the application provides a material of an alignment layer, a preparation method of the material of the alignment layer and a display panel. The following will describe in detail.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a nanoparticle of an alignment layer according to an embodiment of the present disclosure. The application provides a material for an alignment layer. The material of the alignment layer includes nanoparticles and polyimide. Wherein the nanoparticle comprises a core layer, a first outer layer coating the core layer, and a second outer layer coating the first outer layer. The material of the core layer comprises a semiconducting polymer. The material of the first outer layer includes an aggregation-inducing luminescent dye. The material of the second outer layer comprises an amphiphilic triblock copolymer.
In one embodiment, the mass ratio of nanoparticle to polyimide is 1: (10-50). Specifically, the mass ratio of the nanoparticles to polyimide may be 1: 10. 1: 15. 1: 20. 1: 30. 1:40 or 1:50, etc.
In one embodiment, the mass ratio of the semiconducting polymer, the aggregation-inducing luminescent dye, and the amphiphilic triblock copolymer is (1-5): (0.5-1): (95-105). Specifically, the mass ratio of the semiconducting polymer, the aggregation-induced emission dye, and the amphiphilic triblock copolymer may be 1:0.5: 95. 2:0.7: 96. 4:0.9:99 or 5:1:100, etc.
In one embodiment, the amphiphilic triblock copolymer is selected from one or a combination of several of polyacrylic acid-poly beta-hydroxybutyrate-polyacrylic acid, styrene-polyethylene glycol-styrene and polyethylene glycol-polycaprolactone-polyethylene glycol.
In one embodiment, the aggregation-induced emission dye is selected from
(2- ((5- (4- (diphenylamino) phenyl) thiophen-2-yl) methylene) malononitrile, 2- ((5- (4- (diphenylamino) phenyl) thiophen-2-yl) methyl) malononitrile, TTMN), -, and>
(2- ((5- (4- (diphenylamine))Phenyl) thiophen-2-yl) methylene) malononitrile, -/-, for example>
(2- ((4- (4-benzoylphenyl) -5-methylenecyclopentyl-1, 3-dien-1-yl) methylene) malononitrile) and +.>
(2- ((5- (4- (bis (4-methoxyphenyl) amino) phenyl) thiophen-2-yl) methylene) malononitrile) or a combination of several. />
In one embodiment, the semiconducting polymer is selected from
(Poly [2, 5-diethyl-3- (5- (6-methyl-4, 4-dioctyl-4H-cyclopentyl ]']Dithiophen-2-yl) thiophen-2-yl) -6- ((E) -3- (5- ((E) -prop-1-en-1-yl) thiophen-2-yl) allyl) -2, 5-dihydropyrrole [3,4-c]Pyrrole-1, 4-dione),
(Poly [2, 5-diethyl-3- (5- (6-methyl-4, 4-dioctyl-4H-cyclopentyl ]']Dithiophen-2-yl) thiophen-2-yl) -6- ((E) -3- (5- ((E) -prop-1-en-1-yl) thiophen-2-yl) allyl) -2, 5-dihydropyrrole [3,4-c]Pyrrole-1, 4-dione) and
(Poly [ 9, 9-bis (2-ethylhexyl) -9H-fluorene-2, 7-vinyl) -co- (1-methoxy-4- (2-ethylhexyl) -2, 5-phenylenevinyl) ], poly
One or a combination of several of (9, 9-di (2-ethylhexyl) -9H-fluorene-2, 7-vinylene) -co- (1-methoxy-4- (2-ethylhexyloxy) -2, 5-phenylenevinylene), PFPV), wherein n=500-1500, m=500-1500, y=500-1500, R 1 And R is 2 Is alkyl with 1-20 carbon atoms.
In one embodiment, the absorption boep of the aggregation-induced emission dye is 400 nm-600 nm.
In one embodiment, the semiconducting polymer has an emission boy of 500 nm-700 nm.
In the application, the aggregation-induced emission dye with the absorption wave spectrum of 400-600 nanometers and the semiconductor polymer with the emission wave spectrum of 500-700 nanometers are selected, and the absorption wave spectrum of the aggregation-induced emission material and the emission wave spectrum of the semiconductor polymer have more overlapping, so that the resonance energy transfer can be further promoted, the detection of the film forming condition of the alignment layer formed subsequently is further improved, and the detection efficiency of the film forming condition of the alignment layer is improved.
In the present application, the semiconducting polymer is selected from
One or a combination of the above materials has stronger luminous intensity than the luminous intensity of an intermediate product formed by the above materials, so that resonance energy transfer can be promoted, and further, the detection efficiency of the film forming condition of the alignment layer can be improved.
In one embodiment, the amphiphilic triblock copolymer is a polyacrylic acid-poly beta-hydroxybutyrate-polyacrylic acid. Aggregation-induced emission dye
The semiconducting polymer is->
In one embodiment, the amphiphilic triblock copolymer is styrene-polyethylene glycol-styrene. Aggregation-induced emission dye
The semiconducting polymer is->
In one embodiment, the amphiphilic triblock copolymer is polyethylene glycol-polycaprolactone-Polyethylene glycol. Aggregation-induced emission dye
The semiconducting polymer is
In one embodiment, the amphiphilic triblock copolymer is a polyacrylic acid-poly beta-hydroxybutyrate-polyacrylic acid. Aggregation-induced emission dye
The semiconducting polymer is
In the application, the alignment layer is formed by adopting nano particles and polyimide, and whether the film thickness of the alignment layer is uniform, the edge linearity and the corner linearity can be detected by utilizing aggregation-induced emission dye driving. Specifically, the aggregation-induced emission dye driving means that the characteristics of the aggregation-induced emission dye are utilized to enable the semiconductor polymer to emit afterglow, so that concentration quenching effect is avoided, afterglow strength is enhanced, and afterglow time duration is prolonged. In particular, the aggregation-induced emission dye can provide enough under the irradiation of a light source 1 O 2 To excite the semiconducting polymer and form a plurality of high energy intermediates, which then emit photons which activate the aggregation-induced emission dye 1 O 2 At the same time, the energy transfer process between the semiconducting polymer and the aggregation-inducing luminescent dye is triggered, thereby producing a deep red color. By "photon 1 O 2 The semiconducting polymer intermediate-photons "form a closed loop which causes afterglow to be emitted also after cessation of excitation light, exhibiting good imaging properties.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating energy conversion between materials of an alignment layer according to an embodiment of the disclosure. The application uses amphiphilic triblock copolymer as polyethylene glycol-polycaprolactone-polyethylene glycol and aggregation inductionThe luminescent dye is exemplified by TTMN and the semiconducting polymer is exemplified by PFPV. The light source irradiates the TTMN so that the TTMN provides 1 O 2 To excite PFPV and form a number of high energy intermediates; the PFPV intermediate then emits photons, i.e., the PFPV intermediate emits afterglow, which may activate TTMN to produce 1 O 2 At the same time, the energy transfer process between the semiconducting polymer and TTMN is triggered, thereby producing a deep red color.
The application provides a material of alignment layer, the material of alignment layer includes nanoparticle and polyimide, and wherein, nanoparticle includes the nuclear layer, cladding the first skin of nuclear layer and cladding the second skin of first skin, and the material of nuclear layer includes the semiconductor polymer, and the material of first skin includes aggregation-induced emission dyestuff, and the material of second skin includes the amphipathic triblock copolymer. The alignment layer in the display panel is formed by adopting the material of the alignment layer, so that the film forming condition of the formed alignment layer can be detected by aggregation-induced emission dye driving, and the detection efficiency of the film forming condition of the formed alignment layer is improved.
The application also provides a preparation method of the material of the alignment layer. Comprising the following steps:
nanoparticles and polyimide are provided, and the nanoparticles and polyimide are mixed to form a material for the alignment layer. Wherein the nanoparticle comprises a core layer, a first outer layer coating the core layer, and a second outer layer coating the first outer layer. The material of the core layer comprises a semiconducting polymer. The material of the first outer layer includes an aggregation-inducing luminescent dye. The material of the second outer layer comprises an amphiphilic triblock copolymer.
In one embodiment, the mass ratio of nanoparticle to polyimide is 1: (10-50).
In one embodiment, nanoparticles and polyimide are provided, and 10 milligrams of nanoparticles are mixed with 100 milligrams of polyimide in a high speed blender to form the material of the alignment layer.
In one embodiment, nanoparticles and polyimide are provided, and 10 grams of nanoparticles are mixed with 150 grams of polyimide in a high speed blender to form the alignment layer material.
In one embodiment, nanoparticles and polyimide are provided, and 10 kg of nanoparticles are mixed with 200 kg of polyimide in a high speed blender to form the alignment layer material.
In one embodiment, nanoparticles and polyimide are provided, and 10 kg of nanoparticles are mixed with 300 kg of polyimide in a high speed blender to form the alignment layer material.
In one embodiment, nanoparticles and polyimide are provided, and 10 tons of nanoparticles are mixed with 400 tons of polyimide in a high speed blender to form the alignment layer material.
In one embodiment, nanoparticles and polyimide are provided, and 10 tons of nanoparticles are mixed with 500 tons of polyimide in a high speed blender to form the alignment layer material.
In one embodiment, the nanoparticle is prepared from an amphiphilic triblock copolymer, an aggregation-induced emission dye, and a semiconducting polymer, as described in detail below:
providing an amphiphilic triblock copolymer, an aggregation-induced emission dye and a semiconductor polymer, and mixing the amphiphilic triblock copolymer, the aggregation-induced emission dye and the semiconductor polymer in a solvent to form a clear solution; then, under the ultrasonic action, 10-20 ml of ionized water is quickly injected by using an acoustic wave instrument, and ultrasonic vibration is carried out for 3-30 minutes; then, the mixture was stirred in the dark at room temperature for 12 to 24 hours to evaporate the solvent and completely remove deionized water; then, the obtained solution was filtered with a filter (pore size of 0.22 mm), and concentrated by ultrafiltration with a solvent at a centrifugation speed of 6000 rpm to 9000 rpm for 30 minutes to 60 minutes to obtain nanoparticles; the prepared nanoparticles were then stored in the dark at 4 degrees celsius.
In one embodiment, the solvent comprises one or a combination of several of tetrahydrofuran, N-methylpyrrolidone, hexylamine, pentylene, and methyl acetate.
In one embodiment, the amphiphilic triblock copolymer is polyethylene glycol-polycaprolactone-polyethylene glycol. The aggregation-induced emission dye is TTMN. The semiconducting polymer is PFPV. 5 mg of PFPV, 500. Mu.g of TTMN and 100 mg of polyethylene glycol-polycaprolactone-polyethylene glycol were dissolved in tetrahydrofuran to form a clear solution; then, under the ultrasonic action, 10 milliliters of ionized water is quickly injected by using an acoustic wave instrument, and ultrasonic vibration is carried out for 3 minutes; then, the mixture was stirred in the dark at room temperature for 12 hours to evaporate tetrahydrofuran and completely remove deionized water; then, the obtained solution was filtered with a filter (pore size of 0.22 mm), and concentrated by ultrafiltration with N-methylpyrrolidone at a centrifugation speed of 6000 rpm for 30 minutes to obtain nanoparticles; the prepared nanoparticles were then stored in the dark at 4 degrees celsius.
In one embodiment, the amphiphilic triblock copolymer is styrene-polyethylene glycol-styrene. Aggregation-induced emission dye
The semiconducting polymer is
Will 5 mg
1000 micrograms +.>
And 100 mg of styrene-polyethylene glycol-styrene dissolved in tetrahydrofuran to form a clear solution; then, under the ultrasonic action, the ultrasonic vibration lasts for 6 minutes while the 13 milliliters of ionized water is rapidly injected by using an acoustic wave instrument; then, the mixture was stirred at room temperature in the dark for 16 hours to evaporate tetrahydrofuran and completely remove deionized water; then, the obtained solution was filtered with a filter (pore size of 0.22 mm) and concentrated by ultrafiltration with N-methylpyrrolidone at a centrifugation speed of 6500 rpm for 35 minutes to obtain nanoparticles; the prepared nanoparticles were then stored in the dark at 5 degrees celsius.
In one embodiment, the amphiphilic triblock copolymer is a polyacrylic acid-poly beta-hydroxybutyrate-polyacrylic acid. Aggregation-induced emission dyeThe material is
The semiconducting polymer is->
Will 5 mg->
500 micrograms +.>
And 100 mg of polyacrylic acid-poly beta-hydroxybutyrate-polyacrylic acid dissolved in tetrahydrofuran to form a clear solution; then, under the ultrasonic action, 18 milliliters of ionized water is rapidly injected by using an acoustic wave instrument, and ultrasonic vibration is carried out for 9 minutes; then, the mixture was stirred in the dark at room temperature for 20 hours to evaporate tetrahydrofuran and completely remove deionized water; then, the obtained solution was filtered with a filter (pore size of 0.22 mm) and concentrated by ultrafiltration with N-methylpyrrolidone at a centrifugation speed of 7500 rpm for 50 minutes to obtain nanoparticles; the prepared nanoparticles were then stored in the dark at 10 degrees celsius.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the disclosure. The application also provides a display panel. The display panel 10 includes an array substrate 100, a color film substrate 200, and a liquid crystal cell 300. The color film substrate 200 is disposed opposite to the array substrate 100. The liquid crystal cell 300 is disposed between the array substrate 100 and the color film substrate 200. The liquid crystal cell 300 includes an alignment layer 310 and a liquid crystal layer 320. The alignment layer 310 is disposed between the liquid crystal layer 320 and the array substrate 100 and/or between the color film substrates 200. The material of the alignment layer 310 is the material of the alignment layer 310 of the present application, i.e. comprising nanoparticles and polyimide. The nanoparticle includes a core layer, a first outer layer coating the core layer, and a second outer layer coating the first outer layer. The material of the core layer comprises a semiconducting polymer. The material of the first outer layer includes an aggregation-inducing luminescent dye. The material of the second outer layer comprises an amphiphilic triblock copolymer.
In this applicationIn the application, the alignment layer is formed by nano particles and polyimide, and the aggregation-induced emission dye drive can be used for detecting whether the thickness of the alignment layer is uniform, and the edge linearity and the corner linearity are good or bad. Specifically, the aggregation-induced emission dye driving means that the characteristics of the aggregation-induced emission dye are utilized to enable the semiconductor polymer to emit afterglow, so that concentration quenching effect is avoided, afterglow strength is enhanced, and afterglow time duration is prolonged. In particular, aggregation-induced emission dyes are capable of providing adequate 1 O 2 To excite the semiconducting polymer and form a plurality of high energy intermediates, which then emit photons which activate the aggregation-induced emission dye 1 O 2 At the same time, the energy transfer process between the semiconducting polymer and the aggregation-inducing luminescent dye is triggered, thereby producing a deep red color.
A white light emitting diode lamp (2000 lumens) or other light source capable of irradiating to form afterglow is used for pre-illumination for 1-3 minutes, and an open filter (full wave receiving) or a 630 nanometer emission filter is used under the condition of not moving a sample, so that the afterglow luminescence condition can be observed by human eyes for judging the formation condition of an alignment layer: if the afterglow luminescence of a certain area is weak, the thickness of the alignment layer is thin; if the afterglow luminescence intensity of a certain area is higher, the thickness of the alignment layer is normally thicker. And the method can also be matched with related instruments and software to accurately collect afterglow and accurately analyze the film forming condition of the alignment layer.
In the present application, the alignment layer is formed using the material of the alignment layer provided in the present application, i.e., the material of the alignment layer includes nanoparticles and polyimide. The nano particles are composed of a semiconductor polymer, aggregation-induced emission dye and amphiphilic triblock copolymer, so that the film thickness condition of the formed alignment layer can be detected without arranging other equipment or production lines, particularly, the film thickness condition of the formed alignment layer can be detected without arranging other equipment, namely, the peripheral condition of the formed alignment layer can be detected without arranging other equipment, further, the detection efficiency of the film thickness condition of the alignment layer is improved, the production cost is reduced, and the process is simplified.
The embodiment of the application discloses a material of an alignment layer, a preparation method of the material of the alignment layer and a display panel, wherein the material of the alignment layer comprises nano particles and polyimide, the nano particles comprise a core layer, a first outer layer coating the core layer and a second outer layer coating the first outer layer, the material of the core layer comprises a semiconductor polymer, the material of the first outer layer comprises aggregation-induced emission dye, and the material of the second outer layer comprises an amphiphilic triblock copolymer. The alignment layer in the display panel is formed by adopting the material of the alignment layer, so that the film forming condition of the formed alignment layer can be detected by nano particles in the material of the alignment layer, and the detection efficiency of the film forming condition of the formed alignment layer is improved.
The above details of the material of the alignment layer, the preparation method of the material of the alignment layer and the display panel provided in the embodiments of the present application, and specific examples are applied to illustrate the principles and embodiments of the present application, where the above description of the embodiments is only for helping to understand the method and core ideas of the present application; meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.
Claims (6)
1. A material of an alignment layer, characterized in that the material of the alignment layer comprises nanoparticles and polyimide, and the mass ratio of the nanoparticles to the polyimide is 1: (10-50); wherein the nanoparticle comprises a core layer, a first outer layer coating the core layer, and a second outer layer coating the first outer layer, the material of the core layer comprises a semiconducting polymer selected from the group consisting of
2. The material of alignment layer according to claim 1, wherein the amphiphilic triblock copolymer is selected from one or a combination of several of polyacrylic acid-poly beta-hydroxybutyrate-polyacrylic acid, styrene-polyethylene glycol-styrene and polyethylene glycol-polycaprolactone-polyethylene glycol.
3. The material for an alignment layer according to claim 1, wherein the mass ratio of the semiconducting polymer, the aggregation-induced emission dye and the amphiphilic triblock copolymer is (1-5): (0.5-1): (95-105).
4. A method for preparing a material for an alignment layer, comprising:
providing nanoparticles and polyimide, wherein the nanoparticles and the polyimide are mixed to form a material of an alignment layer, and the mass ratio of the nanoparticles to the polyimide is 1: (10-50); wherein the nanoparticle comprises a core layer, a first outer layer coating the core layer, and a second outer layer coating the first outer layer, the material of the core layer comprises a semiconducting polymer selected from the group consisting of
One or a combination of more of the above, wherein n=500-1500, m=500-1500, y=500-1500, and R is as follows 1 And said R 2 Is alkyl with 1-20 carbon atoms; the material of the first outer layer comprises an aggregation-induced emission dye selected from the group consisting of
One or a combination of a plurality of the above; the material of the second outer layer comprises an amphiphilic triblock copolymer. />
5. The method of preparing a material for an alignment layer according to claim 4, wherein in the step of providing nanoparticles, comprising:
providing an amphiphilic triblock copolymer, an aggregation-induced emission dye and a semiconductor polymer, wherein the amphiphilic triblock copolymer, the aggregation-induced emission dye and the semiconductor polymer react in a solvent to form nanoparticles;
the solvent comprises one or a combination of more of tetrahydrofuran, N-methyl pyrrolidone, hexylamine, pentanone and methyl acetate.
6. A display panel, comprising:
an array substrate;
the color film substrate is arranged opposite to the array substrate; and
the liquid crystal box is arranged between the array substrate and the color film substrate, the liquid crystal box comprises an alignment layer and a liquid crystal layer, the alignment layer is arranged between the liquid crystal layer and the array substrate and/or between the color film substrates, and the alignment layer is made of the material of the alignment layer according to any one of claims 1-3.
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| CN107991814A (en) * | 2017-12-25 | 2018-05-04 | 深圳市华星光电技术有限公司 | A kind of liquid crystal display panel and preparation method thereof |
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