CN103091891A - Liquid crystal display panel and manufacturing method thereof and liquid crystal display device - Google Patents
Liquid crystal display panel and manufacturing method thereof and liquid crystal display device Download PDFInfo
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- CN103091891A CN103091891A CN2013100199218A CN201310019921A CN103091891A CN 103091891 A CN103091891 A CN 103091891A CN 2013100199218 A CN2013100199218 A CN 2013100199218A CN 201310019921 A CN201310019921 A CN 201310019921A CN 103091891 A CN103091891 A CN 103091891A
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Abstract
The invention provides a liquid crystal display panel, a manufacturing method of the liquid crystal display panel and a liquid crystal display device, and relates to the technical field of liquid crystal display. Visual angle range can be widened, meanwhile used amount of nano particles is reduced, and the problems in the prior art of high refractive index and poor light-admitting quality of the polymer dispersed liquid crystal due to large used amount of the nano particles are solved. The liquid crystal display panel comprises an array substrate, a color film substrate and a polymer dispersed liquid crystal layer, wherein the array substrate and the color film substrate are relatively arranged, the polymer dispersed liquid crystal layer is arranged between the array substrate and the color film substrate, the polymer dispersed liquid crystal layer comprises nano calcium carbonate, liquid crystal and polyacrylate, and the nano calcium carbonate, the liquid crystal and the polyacrylate are coated with polymethyl methacrylate.
Description
Technical field
The present invention relates to technical field of liquid crystal display, relate in particular to display panels and manufacture method thereof, liquid crystal indicator.
Background technology
Polymer Dispersed Liquid Crystal (Polymer Dispersed Liquid Crystal, PDLC) is with after prepolymer monomer and liquid crystal molecule mixing, passes through polyreaction under certain condition, the material with electro-optic response characteristic of formation.In technical field of liquid crystal display, because liquid crystal molecule has dielectric anisotropy, therefore, can control display panels and present bright attitude under the state of energising, present dark attitude under the state of outage.Wherein, the Polymer Dispersed Liquid Crystal display panel does not need the multiple advantages such as polaroid and oriented layer with it, be widely used in field of liquid crystal display.
Prior art adopts the method for adding the nano particles such as nano silicon or rare earth oxide in Polymer Dispersed Liquid Crystal usually, and to reach the transmittance that improves Polymer Dispersed Liquid Crystal and the purpose of widening angular field of view, it is 0 ° to 60 ° that angular field of view is widened.Namely when light passed through Polymer Dispersed Liquid Crystal, the nano particles such as the nano silicon that adds in Polymer Dispersed Liquid Crystal or rare earth oxide can make light generation diffuse reflection phenomenon, thereby enlarged the zone that light arrives, to reach the purpose of widening angular field of view.
Yet, accounting for 50% left and right of Polymer Dispersed Liquid Crystal total amount due to the consumption that adds the nano particles such as nano silicon or rare earth oxide in Polymer Dispersed Liquid Crystal, the consumption of nano particle is very large, causes cost to increase.Therefore simultaneously, because the consumption of nano particle is large, causes producing the acting force that attracts each other between particle and reunite, so cause the refractive index of Polymer Dispersed Liquid Crystal high, light transmission is poor.
Summary of the invention
Embodiments of the invention provide a kind of display panels and manufacture method thereof, liquid crystal indicator, can be when widening angular field of view, reduce the consumption of nano particle, avoid prior art due to the nano particle consumption causes the refractive index of Polymer Dispersed Liquid Crystal high greatly, light transmission is poor problem.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The embodiment of the present invention provides a kind of display panels, comprises the array base palte and the color membrane substrates that are oppositely arranged, also comprises:
Be arranged at the polymer dispersed liquid crystal layer between described array base palte and color membrane substrates, described polymer dispersed liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the polyacrylate of polymethylmethacrylate parcel.
Described polymer dispersed liquid crystal layer specifically comprises:
Nano-calcium carbonate, described liquid crystal and the percentage by weight described polyacrylate 30% to 50% scope in of percentage by weight in 30% to 50% scope of the described polymethylmethacrylate parcel of percentage by weight in 15% to 25% scope.
The particle diameter of the nano-calcium carbonate of described polymethylmethacrylate parcel is in the scope of 0.1 nanometer to 100 nanometer.
The particle diameter of the nano-calcium carbonate of described polymethylmethacrylate parcel is in the scope of 1 nanometer to 10 nanometer.
The embodiment of the present invention also provides a kind of liquid crystal indicator, comprises display panels as above.
In addition, the embodiment of the present invention also provides a kind of manufacture method of display panels, comprises being oppositely arranged array base palte and color membrane substrates, also comprises:
Between described array base palte and color membrane substrates, liquid crystal layer is set, described liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the acrylate of polymethylmethacrylate parcel;
Described liquid crystal layer is carried out light irradiation processing, form Polymer Dispersed Liquid Crystal, to make display panels.
The preparation method of described liquid crystal layer specifically comprises:
The nano-calcium carbonate of the described polymethylmethacrylate parcel with percentage by weight in 15% to 25% scope, percentage by weight described liquid crystal and the described acrylate of percentage by weight in 30% to 50% scope in 30% to 50% scope mixes, and inject between described array base palte and color membrane substrates, to form described liquid crystal layer.
The preparation method of the nano-calcium carbonate of described polymethylmethacrylate parcel comprises:
After absolute ethyl alcohol with percentage by weight in 70% to 80% scope, the percentage by weight coupling agent and the nano-calcium carbonate mixing of percentage by weight in 10% to 20% scope in 5% to 10% scope, be placed in and stir 30 minutes under room temperature to 1 hour, make mixed liquor;
After described mixed liquor with percentage by weight in 75% to 85% scope and the percentage by weight methyl methacrylate monomer in 15% to 25% scope mixes, be placed under 80 ℃ to 100 ℃ and stirred 30 minutes to 1 hour, form potpourri;
Use ultraviolet source to carry out irradiation to described potpourri, wherein, the ultraviolet irradiation time is greater than 10 minutes, and irradiation dose to the scope of every square centimeter of 1 milliwatt, makes the nano-calcium carbonate of described polymethylmethacrylate parcel every square centimeter of 0.8 milliwatt after drying.
Described coupling agent is silane coupling agent.
Describedly described liquid crystal layer carried out light irradiation processing comprise:
Use ultraviolet source to carry out irradiation to described liquid crystal layer, wherein, the ultraviolet irradiation time in the scope of 5 minutes to 10 minutes, irradiation dose every square centimeter of 0.8 milliwatt to the scope of every square centimeter of 1 milliwatt.
The display panels that the embodiment of the present invention provides and manufacture method thereof, liquid crystal indicator, by array base palte and the color membrane substrates that is oppositely arranged, between array base palte and color membrane substrates, liquid crystal layer is set, liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the acrylate of polymethylmethacrylate parcel, and liquid crystal layer is carried out light irradiation processing, to make display panels.By this scheme, due to the process light irradiation processing, form cross-linked network in liquid crystal layer, the Nano particles of calcium carbonate of the polymethylmethacrylate parcel that distributes in cross-linked network can make light generation diffuse reflection phenomenon, therefore can be when widening angular field of view, reduce the consumption of nano particle, avoid prior art due to the problem that the nano particle consumption causes the refractive index of Polymer Dispersed Liquid Crystal high greatly, light transmission is poor, reduced simultaneously cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the display panels that Fig. 1 provides for the embodiment of the present invention;
The vertical orientated schematic diagram of the nematic liquid crystal that Fig. 2 provides for prior art;
The horizontal alignment schematic diagram of the nematic liquid crystal that Fig. 3 provides for prior art;
The vertical orientated schematic diagram of the discotic mesogenic that Fig. 4 provides for prior art;
The horizontal alignment schematic diagram of the discotic mesogenic that Fig. 5 provides for prior art;
Fig. 6 is the performance comparison figure of Polymer Dispersed Liquid Crystal;
The method flow diagram of the manufacturing display panels that Fig. 7 provides for the embodiment of the present invention;
The structural representation one of the display panels in the manufacturing display panels process that Fig. 8 provides for the embodiment of the present invention;
The method flow diagram of the nano-calcium carbonate that the preparation polymethylmethacrylate that Fig. 9 provides for the embodiment of the present invention wraps up;
The structural representation two of the display panels in the manufacturing display panels process that Figure 10 provides for the embodiment of the present invention;
The printing opacity schematic diagram of manufacturing display panels under the state of closing that Figure 11 provides for the embodiment of the present invention;
The printing opacity schematic diagram one of manufacturing display panels under the state of opening that Figure 12 provides for the embodiment of the present invention;
The printing opacity schematic diagram two of manufacturing display panels under the state of opening that Figure 13 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the present invention provides a kind of display panels 1, as shown in Figure 1, take nematic liquid crystal as example, comprises the array base palte 10 and the color membrane substrates 20 that are oppositely arranged, also comprises:
Be arranged at the polymer dispersed liquid crystal layer 12 between array base palte 10 and color membrane substrates 20, polymer dispersed liquid crystal layer 12 comprises nano-calcium carbonate 120, liquid crystal 121 and the polyacrylate 122 of polymethylmethacrylate parcel.
Wherein, the diffuse reflection phenomenon occurs in the nano-calcium carbonate 120 of polymethylmethacrylate parcel when making light pass through polymer dispersed liquid crystal layer 12, thereby enlarges the zone that light arrives, to reach the purpose of widening angular field of view; Polyacrylate 122 forms cross-linked network, makes the nano-calcium carbonate 120 of polymethylmethacrylate parcel be evenly distributed in polymer dispersed liquid crystal layer 12.
Further, polymer dispersed liquid crystal layer 12 specifically comprises:
Nano-calcium carbonate 120, liquid crystal 121 and the percentage by weight polyacrylate 122 30% to 50% scope in of percentage by weight in 30% to 50% scope of the polymethylmethacrylate parcel of percentage by weight in 15% to 25% scope.
Wherein, the percentage by weight of something refers to: the weight of something accounts for the percentage of the total solution weight that comprises something, and namely the weight of something is A, and the total solution weight that comprises something is B, so, and the percentage by weight A/B*100% of something.for example, percentage by weight is that the nano-calcium carbonate 120 of 15% polymethylmethacrylate parcel refers to that weight shared percentage in the general assembly (TW) of polymer dispersed liquid crystal layer 12 of the nano-calcium carbonate 120 of polymethylmethacrylate parcel is 15%, percentage by weight is that the nano-calcium carbonate 120 of 25% polymethylmethacrylate parcel refers to that weight shared percentage in the general assembly (TW) of polymer dispersed liquid crystal layer 12 of the nano-calcium carbonate 120 of polymethylmethacrylate parcel is 25%, the weight of nano-calcium carbonate 120 that the nano-calcium carbonate 120 of the polymethylmethacrylate parcel of percentage by weight in 15% to 25% scope refers to the polymethylmethacrylate parcel in the general assembly (TW) of polymer dispersed liquid crystal layer 12 shared percentage in 15% to 25% scope, and comprise boundary value 15% and 25%.
Wherein, the percentage by weight of the nano-calcium carbonate 120 of polymethylmethacrylate parcel is preferably 15%, 18%, 20%, 22%, 25%; The percentage by weight of liquid crystal 121 is preferably 30%, 35%, 40%, 45%, 50%; The percentage by weight of polyacrylate 122 is preferably 30%, 35%, 40%, 45%, 50%.
Exemplary, polymer dispersed liquid crystal layer 12 can comprise:
Percentage by weight is that nano-calcium carbonate 120, the percentage by weight of 15% polymethylmethacrylate parcel is that 35% liquid crystal 121 and percentage by weight are 50% polyacrylate 122.
Perhaps, percentage by weight is that nano-calcium carbonate 120, the percentage by weight of 25% polymethylmethacrylate parcel are that 30% liquid crystal 121 and percentage by weight are 45% polyacrylate 122.
Perhaps, percentage by weight is that nano-calcium carbonate 120, the percentage by weight of 25% polymethylmethacrylate parcel are that 50% liquid crystal 121 and percentage by weight are 30% polyacrylate 122.
Preferably, polymer dispersed liquid crystal layer 12 specifically comprises:
Percentage by weight is that nano-calcium carbonate 120, the percentage by weight of 20% polymethylmethacrylate parcel is that 40% liquid crystal 121 and percentage by weight are 40% polyacrylate 122.
Further, the particle diameter of the nano-calcium carbonate 120 of polymethylmethacrylate parcel is in the scope of 0.1 nanometer to 100 nanometer.
Preferably, the particle diameter of the nano-calcium carbonate 120 of polymethylmethacrylate parcel is in the scope of 1 nanometer to 10 nanometer.The nano-calcium carbonate 120 of the polymethylmethacrylate parcel in the scope of 1 nanometer to 10 nanometer not only can make light that the diffuse reflection phenomenon occurs by polymer dispersed liquid crystal layer 12 time, enlarge the zone that light arrives, to reach the purpose of widening angular field of view, can also overcome the acting force that between particle, generation attracts each other and reunite, so cause the refractive index of Polymer Dispersed Liquid Crystal high, problem that light transmission is poor.
Need to prove, liquid crystal 121 can be nematic liquid crystal, can be also discotic mesogenic, and the present invention does not limit.
What need to replenish is that the direction of orientation of liquid crystal molecule is defined as the sensing arrow of liquid crystal molecule and the relation between substrate.Substrate comprises array base palte and color membrane substrates, and array base palte and color membrane substrates are opposing parallel settings usually.in the embodiment of the present invention, the sensing of nematic liquid crystal is vowed and is defined as the direction that is parallel to the nematic liquid crystal major axis, as shown in Figure 2, the sensing of nematic liquid crystal 11 vows 110 perpendicular to array base palte 10, according to above definition mode, nematic liquid crystal 11 is vertical orientated, perhaps, as shown in Figure 3, the sensing of nematic liquid crystal 11 vows that 111 are parallel to array base palte 10, according to above definition mode, nematic liquid crystal 11 is horizontal alignment, in nematic liquid crystal, the orientation of all molecules has determined the orientation of nematic liquid crystal, be that in nematic liquid crystal, all molecules are horizontal or vertical orientation, nematic liquid crystal also should be horizontal or vertical orientation mutually.The direction that is defined as again perpendicular to dish core is vowed in the sensing of discotic mesogenic, as shown in Figure 4, the sensing of discotic mesogenic 13 vows 110 perpendicular to array base palte 10, according to above definition mode, discotic mesogenic 13 is vertical orientated, perhaps, as shown in Figure 5, the sensing of discotic mesogenic 13 vows that 111 are parallel to array base palte 10, according to above definition mode, discotic mesogenic 13 is horizontal alignment, and in discotic mesogenic, the orientation of all molecules has determined the orientation of discotic mesogenic, be that in discotic mesogenic, all molecules are horizontal or vertical orientation, discotic mesogenic also should be horizontal or vertical orientation mutually.
What need to replenish is, in order to make the stabilization box of keeping formation gap between array base palte 10 and color membrane substrates 20 thick, between array base palte 10 and color membrane substrates 11, chock insulator matter can be set, so polymer dispersed liquid crystal layer 12 to be arranged in this gap be between array base palte 10 and color membrane substrates 20.Wherein, chock insulator matter can be the spherical chock insulator matter of glass fibre material, can be also the excellent cylindrical spacer of resin material, and the present invention does not limit.
As shown in Figure 6, performance comparison figure for Polymer Dispersed Liquid Crystal, transverse axis is the visual angle width, vertical pivot is the transmitance of light, diamond curve is not for adding the Polymer Dispersed Liquid Crystal performance curve of nano particle, square curve is for adding the Polymer Dispersed Liquid Crystal performance curve of Nano particles of calcium carbonate, and triangle curve is for adding the Polymer Dispersed Liquid Crystal performance curve of nano-titania particle.As can be seen from the figure do not add the Polymer Dispersed Liquid Crystal narrow viewing angle of nano particle, scope light penetration at wide visual angle is low, the Polymer Dispersed Liquid Crystal visual angle of adding nano-titania particle broadens, but light penetration reduces gradually during greater than 50 ° at the visual angle, and the Polymer Dispersed Liquid Crystal of adding Nano particles of calcium carbonate at the visual angle to be 80 ° be still to keep higher light penetration, thereby solved the poor problem of liquid crystal indicator light transmission.
The display panels that the embodiment of the present invention provides, by array base palte and the color membrane substrates that is oppositely arranged, between array base palte and color membrane substrates, polymer dispersed liquid crystal layer is set, polymer dispersed liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the polyacrylate of polymethylmethacrylate parcel.By this scheme, due to the process light irradiation processing, form cross-linked network, the Nano particles of calcium carbonate of the polymethylmethacrylate parcel that distributes in cross-linked network can make light generation diffuse reflection phenomenon, therefore can be when widening angular field of view, reduce the consumption of nano particle, avoid prior art due to the problem that the nano particle consumption causes the refractive index of Polymer Dispersed Liquid Crystal high greatly, light transmission is poor, reduced simultaneously cost.
The embodiment of the present invention also provides a kind of liquid crystal indicator, and it comprises above-mentioned any one display panels.Described liquid crystal indicator can be any product or parts with Presentation Function such as mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
The embodiment of the present invention also provides a kind of manufacture method of display panels, comprises being oppositely arranged array base palte and color membrane substrates, also comprises:
Between described array base palte and color membrane substrates, liquid crystal layer is set, described liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the acrylate of polymethylmethacrylate parcel;
Described liquid crystal layer is carried out light irradiation processing, form Polymer Dispersed Liquid Crystal, to make display panels.
Exemplary, as shown in Figure 7, the manufacture method of the display panels of the embodiment of the present invention comprises:
S101, be oppositely arranged array base palte and color membrane substrates.
As shown in Figure 8, be oppositely arranged array base palte 10 and color membrane substrates 20.
Exemplary, the embodiment of the present invention be oppositely arranged array base palte 10 and color membrane substrates 20 method can for, between array base palte 10 and color membrane substrates 20, chock insulator matter is set, so that form the gap between array base palte 10 and color membrane substrates 20, and then liquid crystal layer is arranged in this gap.
Need to prove, the embodiment of the present invention does not limit the material of chock insulator matter, and chock insulator matter can be the spherical chock insulator matter of glass fibre material, can be also the bar-shaped chock insulator matter of resin material, and the present invention does not limit; And; the embodiment of the present invention does not limit the arrangement mode of chock insulator matter yet; this chock insulator matter can be evenly to be arranged between array base palte 10 and color membrane substrates 20; also can be arranged on the edge between array base palte 10 and color membrane substrates 20; because its purpose is all for supporting array base palte and color membrane substrates; thick to form fixing box, therefore, all in protection scope of the present invention.
The nano-calcium carbonate of S102, preparation polymethylmethacrylate parcel.
Exemplary, as shown in Figure 9, the method for the nano-calcium carbonate of preparation polymethylmethacrylate parcel specifically can comprise:
After S201, the absolute ethyl alcohol with percentage by weight in 70% to 80% scope, the percentage by weight coupling agent and the nano-calcium carbonate mixing of percentage by weight in 10% to 20% scope in 5% to 10% scope, be placed in and stir 30 minutes under room temperature to 1 hour, make mixed liquor.
Wherein, the percentage by weight of absolute ethyl alcohol is preferably 70%, 72%, 75%, 78%, 80%; The percentage by weight of coupling agent is preferably 5%, 7%, 10%; The percentage by weight of nano-calcium carbonate is preferably 10%, 12%, 15%, 18%, 20%.
Wherein, coupling agent is silane coupling agent.
Exemplary, the method of the nano-calcium carbonate of preparation polymethylmethacrylate parcel specifically can comprise: be that 70% absolute ethyl alcohol, percentage by weight are that 10% silane coupling agent and percentage by weight are after 20% nano-calcium carbonate mixes with percentage by weight, be placed under room temperature and stirred 1 hour, the mode that stirs can adopt mechanical raking, makes mixed liquor.
Preferably, the method of the nano-calcium carbonate of preparation polymethylmethacrylate parcel specifically can comprise: be that 80% absolute ethyl alcohol, percentage by weight are that 5% silane coupling agent and percentage by weight are after 15% nano-calcium carbonate mixes with percentage by weight, be placed under room temperature and stirred 30 minutes, the mode that stirs can adopt mechanical raking, makes mixed liquor.
Wherein, mechanical raking can be specifically that ultrasound wave stirs, and can be also that magneton stirs, and the present invention does not limit.
Need to prove, generally, room temperature refers to normal temperature or general temperature, is commonly defined as 25 degrees centigrade.
Wherein, the percentage by weight of something refers to: the weight of something accounts for the percentage of the total solution weight that comprises something, and namely the weight of something is A, and the total solution weight that comprises something is B, so, and the percentage by weight A/B*100% of something.For example, percentage by weight is that 70% absolute ethyl alcohol refers to that weight shared percentage in the mixed liquor general assembly (TW) of absolute ethyl alcohol is 70%, percentage by weight is that 80% absolute ethyl alcohol refers to that weight shared percentage in the mixed liquor general assembly (TW) of absolute ethyl alcohol is 80%, the weight that the absolute ethyl alcohol of percentage by weight in 70% to 80% scope refers to absolute ethyl alcohol shared percentage in the mixed liquor general assembly (TW) in 70% to 80% scope, and comprises boundary value 70% and 80%.
After S202, the mixed liquor with percentage by weight in 75% to 85% scope and the percentage by weight methyl methacrylate monomer in 15% to 25% scope mixes, be placed under 80 ℃ to 100 ℃ and stirred 30 minutes to 1 hour, form potpourri.
Wherein, the percentage by weight of mixed liquor is preferably 75%, 78%, 80%, 82%, 85%; The percentage by weight of methyl methacrylate monomer is preferably 15%, 17%, 20%, 22%, 25%.
After methyl methacrylate monomer in 15% to 25% scope mixes with the resulting mixed liquor of the above-mentioned steps S201 of percentage by weight in 75% to 85% scope and percentage by weight, be placed under 80 ℃ to 100 ℃ and stirred 30 minutes to 1 hour, same, the mode that stirs adopts mechanical raking, form potpourri, wherein, mechanical raking can be specifically that ultrasound wave stirs, can be that magneton stirs, the present invention limit yet.
Exemplary, form said mixture method can for: be that 75% the resulting mixed liquor of above-mentioned steps S201 and percentage by weight are after 25% methyl methacrylate monomer mixes, to be placed under 80 ℃ and to stir 1 hour with percentage by weight.
Perhaps, form said mixture method can for: be that 85% the resulting mixed liquor of above-mentioned steps S201 and percentage by weight are after 15% methyl methacrylate monomer mixes, to be placed under 100 ℃ and to stir 30 minutes with percentage by weight.
Preferably, the method that forms said mixture is specially: be that 80% the resulting mixed liquor of above-mentioned steps S201 and percentage by weight are after 20% methyl methacrylate monomer mixes, to be placed under 80 ℃ and to stir 30 minutes with percentage by weight.Same, the mode of stirring adopts mechanical raking, forms potpourri, and wherein, mechanical raking can be specifically that ultrasound wave stirs, and can be also that magneton stirs, and the present invention does not limit.
S203, use ultraviolet source carry out irradiation to potpourri, make the nano-calcium carbonate of polymethylmethacrylate parcel after drying.
Exemplary, the detailed process that the potpourri that above-mentioned steps S202 is made uses ultraviolet source to carry out radiation treatment comprises:
Use ultraviolet source to carry out irradiation to potpourri, wherein, the ultraviolet irradiation time is greater than 10 minutes, and irradiation dose to the scope of every square centimeter of 1 milliwatt, makes the nano-calcium carbonate of polymethylmethacrylate parcel every square centimeter of 0.8 milliwatt after drying.
What need to further illustrate is, because step S102 and step S101 are unconnected independently of one another, so step S102 can also be placed on and complete before step S101, and the present invention does not limit the order of step S102 and step S101.
S103, between array base palte and color membrane substrates, liquid crystal layer is set, liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the acrylate of polymethylmethacrylate parcel.
As shown in figure 10, under vacuum condition in the gap that array base palte 10 and color membrane substrates 20 forms the injection liquid crystal layer, liquid crystal layer comprises nano-calcium carbonate 120, liquid crystal 121 and the acrylate of polymethylmethacrylate parcel.
Need to prove, liquid crystal 121 can be nematic liquid crystal, can be also discotic mesogenic, and the present invention does not limit.
Exemplary, if liquid crystal 121 is nematic liquid crystals, when under the state that display panels 1 is being closed, as shown in figure 11, liquid crystal molecule is not orientated, and light (direction shown in arrow in figure) can't pass through liquid crystal layer; When display panels 1 was under the state of opening, as shown in figure 12, the effect that liquid crystal molecule is subject to electric field occured vertical orientated, and at this moment, light (direction shown in arrow in figure) can pass through polymer dispersed liquid crystal layer 12.
Need to prove, liquid crystal injecting method can be the priming by vacuum formula, also can be other any modes that can complete Liquid crystal pour such as dropping type or volume to volume printing-type, and the present invention does not limit.
Particularly, the method for preparing liquid crystal layer can comprise:
The nano-calcium carbonate 120 of the polymethylmethacrylate parcel with percentage by weight in 15% to 25% scope, percentage by weight liquid crystal 121 and the acrylate of percentage by weight in 30% to 50% scope in 30% to 50% scope mixes, and inject between array base palte 10 and color membrane substrates 11, to form liquid crystal layer.
Wherein, the percentage by weight of the nano-calcium carbonate 120 of polymethylmethacrylate parcel is preferably 15%, 18%, 20%, 22%, 25%; The percentage by weight of liquid crystal 121 is preferably 30%, 35%, 40%, 45%, 50%; The percentage by weight of acrylate is preferably 30%, 35%, 40%, 45%, 50%.
Exemplary, the method for preparing liquid crystal layer can comprise:
Be that 35% liquid crystal 121 and percentage by weight are that 50% acrylate mixes with percentage by weight be 15% polymethylmethacrylate parcel nano-calcium carbonate 120, percentage by weight, and inject between array base palte 10 and color membrane substrates 20, to form liquid crystal layer.
Perhaps, be that 30% liquid crystal 121 and percentage by weight are that 45% acrylate mixes with percentage by weight be 25% polymethylmethacrylate parcel nano-calcium carbonate 120, percentage by weight, and inject between array base palte 10 and color membrane substrates 20, to form liquid crystal layer.
Preferably, the method for preparing liquid crystal layer specifically comprises:
Be that 40% liquid crystal 121 and percentage by weight are that 40% acrylate mixes with percentage by weight be 20% polymethylmethacrylate parcel nano-calcium carbonate 120, percentage by weight, and inject between array base palte 10 and color membrane substrates 20, to form liquid crystal layer.
What need to replenish is, the mode of mixing adopts mechanical raking, and wherein, mechanical raking can be specifically that ultrasound wave stirs, and can be also that magneton stirs, and the present invention does not limit.
S104, liquid crystal layer is carried out light irradiation processing, form polymer dispersed liquid crystal layer, to make display panels.
Behind the gap of liquid crystal layer being injected between array base palte 10 and color membrane substrates 20, liquid crystal layer is carried out light irradiation processing, form polymer network in liquid crystal layer, and then form polymer dispersed liquid crystal layer 12, to make display panels 1.
Exemplary, liquid crystal layer is carried out light irradiation processing, form polymer network in liquid crystal layer, and then form polymer dispersed liquid crystal layer 12, comprise with the process of making display panels 1:
Use ultraviolet source to carry out irradiation to liquid crystal layer, wherein, the ultraviolet irradiation time in the scope of 5 minutes to 10 minutes, irradiation dose every square centimeter of 0.8 milliwatt to the scope of every square centimeter of 1 milliwatt.
Exemplary, as shown in figure 13, under the effect of ultraviolet irradiation, liquid crystal layer generation curing cross-linked forms polymer network, thereby the nano-calcium carbonate 120 of polymethylmethacrylate parcel is distributed in polyacrylate 122.If liquid crystal 121 is nematic liquid crystals, when under the state that display panels 1 is being closed, as shown in figure 11, liquid crystal molecule is not orientated, and light can't pass through polymer dispersed liquid crystal layer 12.When display panels 1 was under the state of opening, as shown in figure 12, the effect that liquid crystal molecule is subject to electric field occured vertical orientated, and at this moment, light can pass through polymer dispersed liquid crystal layer 12; As shown in figure 13, unrestrained emission when running into the nano-calcium carbonate 120 of polymethylmethacrylate parcel, light occurs, thereby can be when widening angular field of view, avoid prior art due to the problem that the nano particle consumption causes the refractive index of Polymer Dispersed Liquid Crystal high greatly, light transmission is poor, reduced simultaneously cost.
The manufacture method of the display panels that the embodiment of the present invention provides, by being oppositely arranged array base palte and color membrane substrates, between array base palte and color membrane substrates, liquid crystal layer is set, liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the acrylate of polymethylmethacrylate parcel, and liquid crystal layer is carried out light irradiation processing, form polymer dispersed liquid crystal layer, to make display panels.By this scheme, due to the process light irradiation processing, form cross-linked network in liquid crystal layer, the Nano particles of calcium carbonate of the polymethylmethacrylate parcel that distributes in cross-linked network can make light generation diffuse reflection phenomenon, therefore can be when widening angular field of view, reduce the consumption of nano particle, avoid prior art due to the problem that the nano particle consumption causes the refractive index of Polymer Dispersed Liquid Crystal high greatly, light transmission is poor, reduced simultaneously cost.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. a display panels, comprise the array base palte and the color membrane substrates that are oppositely arranged, it is characterized in that, also comprises:
Be arranged at the polymer dispersed liquid crystal layer between described array base palte and color membrane substrates, described polymer dispersed liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the polyacrylate of polymethylmethacrylate parcel.
2. display panels according to claim 1, is characterized in that, described polymer dispersed liquid crystal layer specifically comprises:
Nano-calcium carbonate, described liquid crystal and the percentage by weight described polyacrylate 30% to 50% scope in of percentage by weight in 30% to 50% scope of the described polymethylmethacrylate parcel of percentage by weight in 15% to 25% scope.
3. display panels according to claim 1 and 2, is characterized in that, the particle diameter of the nano-calcium carbonate of described polymethylmethacrylate parcel is in the scope of 0.1 nanometer to 100 nanometer.
4. display panels according to claim 3, is characterized in that, the particle diameter of the nano-calcium carbonate of described polymethylmethacrylate parcel is in the scope of 1 nanometer to 10 nanometer.
5. a liquid crystal indicator, is characterized in that, comprises display panels as described in any one in claim 1-4.
6. the manufacture method of a display panels, comprise being oppositely arranged array base palte and color membrane substrates, it is characterized in that, also comprises:
Between described array base palte and color membrane substrates, liquid crystal layer is set, described liquid crystal layer comprises nano-calcium carbonate, liquid crystal and the acrylate of polymethylmethacrylate parcel;
Described liquid crystal layer is carried out light irradiation processing, form polymer dispersed liquid crystal layer, to make display panels.
7. the manufacture method of display panels according to claim 6, is characterized in that, the preparation method of described liquid crystal layer specifically comprises:
The nano-calcium carbonate of the described polymethylmethacrylate parcel with percentage by weight in 15% to 25% scope, percentage by weight described liquid crystal and the described acrylate of percentage by weight in 30% to 50% scope in 30% to 50% scope mixes, and inject between described array base palte and color membrane substrates, to form described liquid crystal layer.
8. the manufacture method of according to claim 6 or 7 described display panels, is characterized in that, the preparation method of the nano-calcium carbonate of described polymethylmethacrylate parcel comprises:
After absolute ethyl alcohol with percentage by weight in 70% to 80% scope, the percentage by weight coupling agent and the nano-calcium carbonate mixing of percentage by weight in 10% to 20% scope in 5% to 10% scope, be placed in and stir 30 minutes under room temperature to 1 hour, make mixed liquor;
After described mixed liquor with percentage by weight in 75% to 85% scope and the percentage by weight methyl methacrylate monomer in 15% to 25% scope mixes, be placed under 80 ℃ to 100 ℃ and stirred 30 minutes to 1 hour, form potpourri;
Use ultraviolet source to carry out irradiation to described potpourri, wherein, the ultraviolet irradiation time is greater than 10 minutes, and irradiation dose to the scope of every square centimeter of 1 milliwatt, makes the nano-calcium carbonate of described polymethylmethacrylate parcel every square centimeter of 0.8 milliwatt after drying.
9. the manufacture method of display panels according to claim 8, is characterized in that, described coupling agent is silane coupling agent.
10. the manufacture method of according to claim 6 or 7 described display panels, is characterized in that, describedly described liquid crystal layer is carried out light irradiation processing comprises:
Use ultraviolet source to carry out irradiation to described liquid crystal layer, wherein, the ultraviolet irradiation time in the scope of 5 minutes to 10 minutes, irradiation dose every square centimeter of 0.8 milliwatt to the scope of every square centimeter of 1 milliwatt.
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| CN115167047A (en) * | 2022-07-04 | 2022-10-11 | 河北工业大学 | Twisted nematic liquid crystal box, display device and preparation method |
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