CN103197458A - Production method of transparent liquid crystal display (LCD) - Google Patents
Production method of transparent liquid crystal display (LCD) Download PDFInfo
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- CN103197458A CN103197458A CN2013101127753A CN201310112775A CN103197458A CN 103197458 A CN103197458 A CN 103197458A CN 2013101127753 A CN2013101127753 A CN 2013101127753A CN 201310112775 A CN201310112775 A CN 201310112775A CN 103197458 A CN103197458 A CN 103197458A
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Abstract
A production method of a transparent LCD includes the steps of assembling a first substrate and a second substrate; injecting a liquid crystal component between the first substrate and the second substrate, wherein the liquid crystal component comprises a plurality of liquid crystal molecules and polymerizable materials, and the polymerizable materials comprise polyether polyol acryl monomers and liquid crystal polymerization initiator; and performing an irradiation process and a heating process.
Description
Technical field
The invention relates to a kind of manufacture method of LCD, and particularly relevant for a kind of manufacture method of transparent liquid crystal display.
Background technology
Just in the transparent liquid crystal display processing procedure of existing development, can be divided into the processing procedure that needs the coating alignment film and the processing procedure two big classes that need not be coated with alignment film.With the transparent liquid crystal display processing procedure of need coating alignment film, need on substrate, be coated with alignment materials usually and solidify alignment materials to form alignment film.And then be coated with frame glue and inject liquid crystal material between upper and lower base plate.Then, carrying out the irradiation precuring program of frame glue and the baking program of frame glue stands with the group of finishing liquid crystal panel.
In addition, need not be coated with the transparent liquid crystal display processing procedure of alignment film, for example be polymer stabilizing vertical alignment (polymer stabilized vertical alignment, PSVA) processing procedure, though it does not need to be coated with alignment film, yet it need additionally apply voltage and the irradiation program of arranging in pairs or groups, and can make polymkeric substance have the characteristic of orientation.In other words, existing LCD processing procedure must comprise the processing procedure that orientation is relevant usually.
Summary of the invention
The invention provides a kind of manufacture method of transparent liquid crystal display, it need not carry out the relevant processing procedure of orientation and have the advantage of quick production.
The present invention proposes a kind of manufacture method of transparent liquid crystal display, comprises the steps.At first, upright first substrate of group and second substrate.Then, liquid-crystal composition is injected between first substrate and second substrate.Liquid-crystal composition comprises a plurality of liquid crystal molecules and polymerizable material, and wherein polymerizable material comprises polyether glycol acrylic group monomer and polymerizable mesogenic initiator.Then, carry out irradiation program and heating schedule.
In one embodiment of this invention, above-mentioned polymerizable mesogenic initiator comprises the light initiator.
In one embodiment of this invention, when carrying out the irradiation program, part liquid crystal molecule surface at first substrate and second substrate after irradiation forms a plurality of first high molecule liquid crystal born of the same parents and a plurality of second high molecule liquid crystal born of the same parents.
In one embodiment of this invention, the heating-up temperature of above-mentioned heating schedule is 100 to 140 ℃, and be 1 to 2 hour heat time heating time.
In one embodiment of this invention, above-mentioned polymerizable mesogenic initiator comprises hot initiator.
In one embodiment of this invention, above-mentioned heating schedule comprises the high temperature heating schedule, and part liquid crystal molecule surface at first substrate and second substrate after the high temperature heating schedule forms a plurality of first high molecule liquid crystal born of the same parents and a plurality of second high molecule liquid crystal born of the same parents.
In one embodiment of this invention, the reacting initial temperature of above-mentioned hot initiator is more than 120 ℃.
In one embodiment of this invention, the heating-up temperature of above-mentioned high temperature heating schedule is 120 to 160 ℃, and be 1 to 3 hour heat time heating time.
In one embodiment of this invention, above-mentioned heating schedule comprises and carries out low-temperature heat program and high temperature heating schedule in regular turn, after carrying out the low-temperature heat program and before carrying out the high temperature heating schedule, the part liquid crystal molecule forms a plurality of first high molecule liquid crystal born of the same parents and a plurality of second high molecule liquid crystal born of the same parents on the surface of first substrate and second substrate.
In one embodiment of this invention, the reacting initial temperature of above-mentioned hot initiator is between 40 to 80 ℃.
In one embodiment of this invention, above-mentioned low-temperature heat procedure heating temperature is 40 ℃ to 80 ℃, and be in 5 to 10 minutes heat time heating time; The heating-up temperature of above-mentioned high temperature heating schedule is 120 to 160 ℃, and be 1 to 3 hour heat time heating time.
In one embodiment of this invention, above-mentioned irradiation program comprises ultraviolet lighting light path order.
In one embodiment of this invention, in the manufacture method of above-mentioned transparent liquid crystal display, in the general assembly (TW) of liquid-crystal composition, the content of polymerizable material is 20wt% to 50wt%.
In one embodiment of this invention, above-mentioned polymerizable material more comprises acryl resin monomer and polymercaptan monomer.
In one embodiment of this invention, in the manufacture method of above-mentioned transparent liquid crystal display, in the general assembly (TW) of polymerizable material, the content of polyether glycol acrylic group monomer is 10wt% to 30wt%; The content of acryl resin monomer is 10wt% to 30wt%; The content of polymercaptan monomer is 10wt% to 30wt%; The content of polymerizable mesogenic initiator is 0.5wt% to 5wt%.
In one embodiment of this invention, above-mentioned polyether glycol acrylic group monomer comprises:
In one embodiment of this invention, above-mentioned acryl resin monomer comprises:
In one embodiment of this invention, above-mentioned polymercaptan monomer comprises:
In one embodiment of this invention, above-mentioned light initiator comprises:
Based on above-mentioned, transparent liquid crystal display of the present invention is as long as inject between the substrate liquid-crystal composition again in conjunction with the upright processing procedure processing procedure relevant with the frame adhesive curing of existing group, therefore just can finish the making of transparent liquid crystal display of the present invention, the manufacture method of the transparent liquid crystal display of the present invention advantage that has high yield, low cost and can produce fast.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
Description of drawings
Figure 1A to Fig. 1 C is the manufacturing process diagrammatic cross-section of the transparent liquid crystal display of first embodiment of the invention.
Fig. 2 is the manufacturing process synoptic diagram of the transparent liquid crystal display of first embodiment of the invention.
Fig. 3 is the manufacturing process synoptic diagram of the transparent liquid crystal display of second embodiment of the invention.
Fig. 4 is the manufacturing process synoptic diagram of the transparent liquid crystal display of third embodiment of the invention.
[primary clustering symbol description]
100: the transparent liquid crystal display
110: the first substrates
112: substrate
114: pixel electrode
120: the second substrates
122: substrate
124: pixel electrode
130: frame glue
130a: frame glue
140: liquid-crystal composition
140s: liquid crystal layer
142: liquid crystal molecule
144a: the first high molecule liquid crystal born of the same parents
144b: the second high molecule liquid crystal born of the same parents
146: polymerizable material
V: accommodation space
S110, S120, S130, S140, S210, S220, S230, S240, S310, S320, S330, S340: step
Embodiment
Figure 1A to Fig. 1 C is the manufacturing process diagrammatic cross-section of the transparent liquid crystal display of first embodiment of the invention.Fig. 2 is the manufacturing process synoptic diagram of the transparent liquid crystal display of first embodiment of the invention.Please refer to Figure 1A and Fig. 2, at first, carry out step S110, upright first substrate 110 of group and second substrate 120.Coating frame glue 130 between first substrate 110 and second substrate 120.In the present embodiment, first substrate 110 comprises substrate 112 and is disposed at pixel electrode 114 in the substrate 112.In other embodiments, first substrate 110 can comprise the chromatic filter layer (Color Filter) (not illustrating) that is disposed between substrate and the pixel electrode 114 further.Second substrate, 120 subtends are in first substrate 110.Second substrate 120 of present embodiment can be active assembly array substrate.In detail, second substrate 120 pixel electrode 124 that comprises substrate 122, be disposed at the driving component (not illustrating) in the substrate 122 and electrically connect with driving component.
Then, please refer to Figure 1B and Fig. 2, carry out step S120.Liquid-crystal composition 140 is injected the accommodation space V shown in Figure 1A.In the present embodiment, can utilize ODF (One Drop Fill) method that liquid-crystal composition 140 is inserted between first substrate 110 and second substrate 120.Yet, the invention is not restricted to this, in other embodiments, also can utilize vacuum impregnation or other suitable method that liquid-crystal composition 140 is inserted between first substrate 110 and second substrate 120.
Liquid-crystal composition 140 comprises a plurality of liquid crystal molecules 142 and polymerizable material 146.In the general assembly (TW) of liquid-crystal composition 140, the content of polymerizable material 146 is 20wt% to 50wt%.Polymerizable material 146 comprises polyether glycol acrylic group monomer.In the general assembly (TW) of polymerizable material 146, the content of polyether glycol acrylic group monomer is 10wt% to 30wt%.In addition, the polymerizable material 146 of present embodiment can more comprise solvent, acryl resin monomer, polymercaptan monomer and polymerizable mesogenic initiator.In the general assembly (TW) of polymerizable material 146, the content of acryl resin monomer is 10wt% to 30wt%; The content of polymercaptan monomer is 10wt% to 30wt%; The content of polymerizable mesogenic initiator is 0.5wt% to 5wt%.The polymerizable material 146 employed polymerizable mesogenic initiators of present embodiment for example are the light initiators.
In the present embodiment, the structure example of polyether glycol acrylic group monomer in this way
The structure example of the acryl resin monomer of present embodiment in this way
The structure example of the polymercaptan monomer of present embodiment in this way
The structure example of the light initiator of present embodiment in this way
Then, please also refer to Figure 1B, Fig. 1 C and Fig. 2, carry out step S130.Carry out the irradiation program so that 130 precuring of frame glue.The irradiation program for example is ultraviolet lighting light path order, and the irradiation program is the precuring program of existing processing procedure center glue 130.The accumulation light quantity of irradiation for example is more than 12 joules.Because the polymerizable material 146 employed polymerizable mesogenic initiators of present embodiment are the light initiator, therefore liquid-crystal composition 140 is after irradiation, the light initiator helps the liquid crystal molecule 142 of part and polyether glycol acrylic group monomer to produce polyreaction, and forms the first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b on the surface of first substrate 110 and second substrate 120 respectively.
Specifically, the property class of polyether glycol acrylic group monomer is like the interface activating agent, and its function is to make liquid crystal molecule 142 form the first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b on the surface of first substrate 110 and second substrate 120.In addition, the function of acryl resin monomer for example is the liquid crystal molecule 142 and polyether glycol acrylic group monomer polymerization reaction take place that further promotes among the high molecule liquid crystal born of the same parents.The function of polymercaptan for example is further to strengthen the surface of first substrate 110 and adhesion and the surface of second substrate 120 and the adhesion of the second high molecule liquid crystal born of the same parents 144b of the first high molecule liquid crystal born of the same parents 144a, so that the first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b tend to be dispersed in the surface of first substrate 110 and second substrate 120.142 of liquid crystal molecules between the first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b are difficult for carrying out polyreaction, and keep unpolymerized state.
In the irradiation program of traditional frame glue precuring, must cover liquid crystal material with light shield usually, to reduce liquid crystal material the possibility that character changes take place because of exposure.In comparison, the irradiation program of present embodiment does not then need to cover liquid-crystal composition with light shield, and more utilize the irradiation program with the formation first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b on the surface of first substrate 110 and second substrate 120, so processing procedure is comparatively quick and easy.
Then, carry out step S140.Carry out heating schedule and form frame glue 130a so that frame glue 130 further hardens.Heating schedule for example is the baking program of the frame glue 130 of precuring in the existing processing procedure.The heating-up temperature of heating schedule is 120 to 160 ℃, and be 1 to 3 hour heat time heating time.In another embodiment of the present invention, the heating-up temperature of heating schedule is 120 ℃, and be 1.5 hours heat time heating time.Heating schedule can allow the frame glue 130 of precuring solidify to form frame glue 130a fully, so that first substrate 110 and second substrate 120 fit together really.In addition, if in aforesaid irradiation program, the incomplete monomer of residual polyreaction (comprising polyether glycol acrylic group monomer, acryl resin monomer and polymercaptan monomer) is arranged, then see through heating schedule and can further eliminate the incomplete monomer of above-mentioned polyreaction, be terminated with the reactivity of guaranteeing the incomplete monomer of above-mentioned polyreaction.After carrying out heating schedule, just can obtain transparent liquid crystal display 100, shown in Fig. 1 C.
Please refer to Fig. 1 C, when having potential difference (PD) between first substrate 110 and second substrate 120, the optical axis direction that is positioned at the lip-deep first high molecule liquid crystal born of the same parents 144a of first substrate 110, the lip-deep second high molecule liquid crystal born of the same parents 144b that is positioned at second substrate 120 and liquid crystal molecule 142 is consistent in fact.At this moment, when incident light was passed to transparent liquid crystal display 100, incident light can pass second substrate 120, liquid crystal layer 140s and first substrate 110, and makes the part zone of transparent liquid crystal display 100 present clear state.
In addition, when the potential difference (PD) between first substrate 110 and second substrate 120 is essentially zero, is positioned at the lip-deep first high molecule liquid crystal born of the same parents 144a of first substrate 110, the lip-deep second high molecule liquid crystal born of the same parents 144b that is positioned at second substrate 120 and the optical axis direction of liquid crystal molecule 142 and intermeshes in fact.At this moment, when incident light was passed to transparent liquid crystal display 100, incident light can be by the scattering of the second high molecule liquid crystal born of the same parents 144b institute, and makes the part zone of transparent liquid crystal display 100 present scattering states.Utilize the above-mentioned part zone that makes transparent liquid crystal display 100 to present clear state and partly present the mode of scattering states in the zone, transparent liquid crystal display 100 is picture capable of displaying image and need not use Polarizer.So the manufacture method of the transparent liquid crystal display 100 of present embodiment has more advantage cheaply.
Fig. 3 is the manufacturing process synoptic diagram of the transparent liquid crystal display of second embodiment of the invention.The manufacturing process of second embodiment and first embodiment are roughly the same, and the structure of transparent liquid crystal display and the manufacturing process of same section please refer to first embodiment.Below will illustrate at difference.
Please at first, carry out step S210 and step S220 simultaneously with reference to Fig. 3 and Fig. 1 C.Step S210 and step S220 are roughly similar to step S110 and the step S120 of first embodiment, and wherein different with first embodiment is that the employed polymerizable mesogenic initiator of the polymerizable material of present embodiment is hot initiator.
Then, carry out step S230, carry out the irradiation program.Because present embodiment uses hot initiator as the polymerizable mesogenic initiator of polymerizable material 146, therefore in the irradiation program of precuring frame glue 130, liquid crystal molecule 142 is difficult for producing polyreaction.Certainly, also can further in the irradiation program, use light shield to cover liquid-crystal composition 140, to reduce the probability that liquid crystal molecule 142 produces polyreaction.
Then, carry out step S240.Carry out heating schedule.The heating schedule of present embodiment comprises low-temperature heat program and high temperature heating schedule.Low-temperature heat procedure heating temperature for example is 40 ℃ to 80 ℃, and for example be 5 to 10 minutes heat time heating time.After carrying out the low-temperature heat program, part liquid crystal molecule 142 forms a plurality of first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b on the surface of first substrate 110 and second substrate 120.
Specifically, because the employed polymerizable mesogenic initiator of present embodiment is low warm initiator, the temperature of reaction of low warm initiator is 40 ℃ to 80 ℃, therefore liquid-crystal composition 140 is after heating, low warm initiator helps the liquid crystal molecule 142 of part and polyether glycol acrylic group monomer to produce polyreaction, and forms the first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b on the surface of first substrate 110 and second substrate 120.The mechanism of action of the polyreaction of relevant liquid-crystal composition 140 please refer to first embodiment.
The low warm initiator of present embodiment is temperature of reaction between 40 ℃ to 80 ℃ aminated compounds.The model that low warm initiator can be silicon grace special material incorporated company is that PN-23 or model are the hot initiator of PN-31J.Certainly, the invention is not restricted to this.So long as temperature of reaction all can be used as above-mentioned low warm initiator between 40 ℃ to 80 ℃ suitable hot initiator.
Then, carry out the high temperature heating schedule.The high temperature heating schedule for example is the baking program of existing processing procedure center glue 130.The heating-up temperature of high temperature heating schedule is 120 to 160 ℃, and be 1 to 3 hour heat time heating time.In another embodiment of the present invention, the heating-up temperature of high temperature heating schedule is 120 ℃, and be 1.5 hours heat time heating time.The high temperature heating schedule can solidify frame glue 130a fully, so that first substrate 110 and second substrate 120 fit together really.In addition, if the incomplete monomer of residual polyreaction is arranged in aforesaid low-temperature heat program, then see through the high temperature heating schedule and can further eliminate the incomplete monomer of above-mentioned polyreaction, be terminated with the reactivity of guaranteeing the incomplete monomer of above-mentioned polyreaction.
Fig. 4 is the manufacturing process synoptic diagram of the transparent liquid crystal display of third embodiment of the invention.The manufacturing process of the 3rd embodiment and first embodiment are roughly the same, and the structure of transparent liquid crystal display and the manufacturing process of same section please refer to first embodiment.Below will illustrate at difference.
Please at first, carry out step S310 and step S320 simultaneously with reference to Fig. 4 and Fig. 1 C.Step S310 and step S320 are roughly similar to step S110 and the step S120 of first embodiment, and wherein different with first embodiment is that the employed polymerizable mesogenic initiator of the polymerizable material of present embodiment is hot initiator.
Then, carry out step S330, carry out the irradiation program.Because present embodiment uses hot initiator as the polymerizable mesogenic initiator of polymerizable material 146, therefore in the irradiation program of precuring frame glue 130, liquid crystal molecule 142 is difficult for producing polyreaction.Certainly, also can further in the irradiation program, use light shield to cover liquid-crystal composition 140, to reduce the probability that liquid crystal molecule 142 produces polyreaction.
Then, carry out step S340, carry out heating schedule.Heating schedule for example is one high temperature heating schedule.The high temperature heating schedule for example is the frame glue 130 baking programs in the existing processing procedure.The heating-up temperature of high temperature heating schedule is 120 to 160 ℃, and be 1 to 3 hour heat time heating time.In another embodiment of the present invention, the heating-up temperature of high temperature heating schedule is 120 ℃, and be 1.5 hours heat time heating time.After carrying out the high temperature heating schedule, part liquid crystal molecule 142 forms a plurality of first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b on the surface of first substrate 110 and second substrate 120.
Specifically, because the polymerizable material 146 employed polymerizable mesogenic initiators of present embodiment are the elevated temperature heat initiator, the temperature of reaction of elevated temperature heat initiator is more than 120 ℃, therefore liquid-crystal composition 140 is after heating, hot initiator helps the liquid crystal molecule 142 of part and polyether glycol acrylic group monomer to produce polyreaction, and forms the first high molecule liquid crystal born of the same parents 144a and the second high molecule liquid crystal born of the same parents 144b on the surface of first substrate 110 and second substrate 120.The mechanism of action of the polyreaction of relevant liquid-crystal composition 140 please refer to first embodiment.In addition, heating schedule also can solidify frame glue 130a simultaneously, so that first substrate 110 and second substrate 120 fit together really, and finishes the transparent liquid crystal display.
The elevated temperature heat initiator of present embodiment is that temperature of reaction is the aminated compounds more than 120 ℃.The elevated temperature heat initiator can be that the model of silicon grace special material incorporated company is that AH-154 or model are the hot initiator of AH-162.Certainly, the invention is not restricted to this.So long as being suitable hot initiator more than 120 ℃, temperature of reaction all can be used as above-mentioned elevated temperature heat initiator.
Based on above-mentioned, the manufacture method of transparent liquid crystal display of the present invention does not need the coating process of alignment film, in addition, does not need additionally to apply voltage collocation irradiation program has the orientation characteristic with formation polymkeric substance yet.In other words, as long as liquid-crystal composition is injected between the substrate again in conjunction with the upright processing procedure processing procedure relevant with the frame adhesive curing of existing group, therefore just can finish the making of transparent liquid crystal display of the present invention, the manufacture method of the transparent liquid crystal display of the present invention advantage that has high yield, low cost and can produce fast.
Claims (15)
1. the manufacture method of a transparent liquid crystal display is characterized in that, comprising:
Upright one first substrate of group and one second substrate;
One liquid-crystal composition is injected between this first substrate and this second substrate, and this liquid-crystal composition comprises a plurality of liquid crystal molecules and a polymerizable material, and wherein this polymerizable material comprises a polyether glycol acrylic group monomer and a polymerizable mesogenic initiator;
Carry out an irradiation program; And
Carry out a heating schedule.
2. the manufacture method of transparent liquid crystal display as claimed in claim 1 is characterized in that, this polymerizable mesogenic initiator comprises a smooth initiator.
3. the manufacture method of transparent liquid crystal display as claimed in claim 2, it is characterized in that, when carrying out this irradiation program, this liquid-crystal composition of part surface at this first substrate and this second substrate after irradiation forms a plurality of first high molecule liquid crystal born of the same parents and a plurality of second high molecule liquid crystal born of the same parents.
4. the manufacture method of transparent liquid crystal display as claimed in claim 2 is characterized in that, the heating-up temperature of this heating schedule is 100 to 140 ℃, and be 1 to 2 hour heat time heating time.
5. the manufacture method of transparent liquid crystal display as claimed in claim 1 is characterized in that, this polymerizable mesogenic initiator comprises a hot initiator.
6. the manufacture method of transparent liquid crystal display as claimed in claim 5, it is characterized in that, this heating schedule comprises a high temperature heating schedule, and this liquid-crystal composition of part surface at this first substrate and this second substrate after this high temperature heating schedule forms a plurality of first high molecule liquid crystal born of the same parents and a plurality of second high molecule liquid crystal born of the same parents.
7. the manufacture method of transparent liquid crystal display as claimed in claim 6 is characterized in that, the reacting initial temperature of this hot initiator is more than 120 ℃.
8. the manufacture method of transparent liquid crystal display as claimed in claim 6 is characterized in that, the heating-up temperature of this high temperature heating schedule is 120 to 160 ℃, and be 1 to 3 hour heat time heating time.
9. the manufacture method of transparent liquid crystal display as claimed in claim 5, it is characterized in that, this heating schedule comprises and carries out a low-temperature heat program and a high temperature heating schedule in regular turn, after carrying out this low-temperature heat program and before carrying out this high temperature heating schedule, this liquid-crystal composition of part forms a plurality of first high molecule liquid crystal born of the same parents and a plurality of second high molecule liquid crystal born of the same parents on the surface of this first substrate and this second substrate.
10. the manufacture method of transparent liquid crystal display as claimed in claim 9 is characterized in that, the reacting initial temperature of this hot initiator is between 40 to 80 ℃.
11. the manufacture method of transparent liquid crystal display as claimed in claim 9 is characterized in that,,
This low-temperature heat procedure heating temperature is 40 ℃ to 80 ℃, and be 5 to 10 minutes heat time heating time;
The heating-up temperature of this high temperature heating schedule is 120 to 160 ℃, and be 1 to 3 hour heat time heating time.
12. the manufacture method of transparent liquid crystal display as claimed in claim 1 is characterized in that, this irradiation program comprises a ultraviolet lighting light path order.
13. the manufacture method of transparent liquid crystal display as claimed in claim 1 is characterized in that, in the general assembly (TW) of this liquid-crystal composition, the content of this polymerizable material is 20wt% to 50wt%.
14. the manufacture method of transparent liquid crystal display as claimed in claim 1 is characterized in that, this polymerizable material more comprises an acryl resin monomer and a polymercaptan monomer.
15. the manufacture method of transparent liquid crystal display as claimed in claim 14 is characterized in that, in the general assembly (TW) of this polymerizable material, the content of this polyether glycol acrylic group monomer is 10wt% to 30wt%; The content of this acryl resin monomer is 10wt% to 30wt%; The content of this polymercaptan monomer is 10wt% to 30wt%; The content of this polymerizable mesogenic initiator is 0.5wt% to 5wt%.
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| US20060209232A1 (en) * | 2004-01-28 | 2006-09-21 | Kent State University | Method of fabricating electro-optical devices with polymer-stabilized liquid crystal molecules |
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Application publication date: 20130710 |