CN104090409A - Cholesteric-phase flexible liquid crystal display device and preparation method thereof - Google Patents
Cholesteric-phase flexible liquid crystal display device and preparation method thereof Download PDFInfo
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- CN104090409A CN104090409A CN201410371969.XA CN201410371969A CN104090409A CN 104090409 A CN104090409 A CN 104090409A CN 201410371969 A CN201410371969 A CN 201410371969A CN 104090409 A CN104090409 A CN 104090409A
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Abstract
The invention discloses a cholesteric-phase flexible liquid crystal display device and a preparation method of the cholesteric-phase flexible liquid crystal display device. The cholesteric-phase flexible liquid crystal display device comprises a light absorption layer, a first flexible substrate, a second flexible substrate, a first electrode, a second electrode, a first orientation layer, a second orientation layer, a liquid crystal mixture layer and a light mask plate. Ultraviolet light acts on the flexible liquid crystal display device through the light mask plate, the liquid crystal mixture layer is provided with a polymer wall of a special structure, and capsulation covering is conducted on liquid crystal molecules through the polymer wall formed through a polymerization reaction, so that the cholesteric-phase flexible liquid crystal display device is formed. Compared with display devices of other types, the cholesteric-phase flexible liquid crystal display device has the advantages of being low in power consumption, small in size, low in cost and the like, a capsulation flexible panel of cholesteric liquid crystals is formed in a special mode, the polymer wall has the specific structure, and the cholesteric-phase flexible liquid crystal display device has good photoelectric performance and display and mechanical overall performance.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of cholesteric phase flexible liquid crystal device with special construction and preparation method thereof.
Background technology
Liquid crystal material of cholesteric phase has helicoidal structure and bistable characteristic, especially its reflective display performance, gordian technique and the material of flexible display technologies, its polymer stabilized cholesteric phase liquid crystal display mode, improve the chemical stability of cholesteric liquid crystal, promoted it in the application that shows field.
LCD product is mainly transmission phase LCD, for example twisted nematic liquid crystal shows that (TN-LCD), Super Twisted Nematic Liquid Crystal show that (STN-LCD) and tft liquid crystal show (TFT-LCD), transmission type lcd device must adopt backlight, and 80% consumption of device power consumption is on backlight, so the general power consumption of this series products is larger, do not given play to the advantage of liquid crystal display device low-power consumption.In recent years, do not use backlight, low-power consumption, lightweight reflection LCD to be more and more subject to people's common concern.Because Bistble reflection cholesteric liquid crystal displays has reflecting brightness and the feature such as contrast is high, and power consumption is little, and after power-off, can retain for a long time image, belong to natural reflective full-color demonstration.And without active matrix, just can realize large capacity high resolving power and show, and can be produced in flexible substrates.Because do not use polaroid, luminance brightness loss is very little, is applicable to very much the display of mobile electronic product class, as mobile phone, digital camera, e-book etc., is highly suitable in addition showing under outdoor sunlight.
In the evolution of liquid crystal display flexibility, mobility due to liquid crystal, when curved substrate or pressurized are folding, because the distance between substrate changes, at folding region liquid crystal, will flow to periphery, thereby occur the problems such as so-called pressure point, this becomes the major obstacle that instantly restricts liquid crystal display flexibility.In order to realize, cholesteric liquid crystal is flexible to be shown, general method is to produce potpourri dispersed LCD (PDLC) film, and the PDLC film mixture dispersed LCD that then classic method is made is inhomogeneous, and driving voltage is high, and contrast is also undesirable.
Given this, need to current cholesteric phase flexible liquid crystal display be improved, improve structural design, make new cholesteric phase flexible liquid crystal device production cost low, and display performance is good, low in energy consumption.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of cholesteric phase flexible liquid crystal device with special construction and preparation method thereof, cholesteric phase flexible display apparatus structure comprises light-absorption layer, the first flexible base, board, the second flexible base, board, the first electrode, the second electrode, the first oriented layer, the second oriented layer, liquid crystal compound layer, and this liquid crystal compound layer is the liquid crystal compound layer with special construction polymkeric substance wall.In order to realize cholesteric liquid crystal, for flexibility, show, must carry out encapsulated parcel to liquid crystal molecule, so that liquid crystal molecule can not at will flow, the problems such as pressure point phenomenon while eliminating flexible demonstration.For this reason, common solution is by Polymer Dispersed Liquid Crystal method, liquid crystal to be coated, but due to the polymer network irregularity forming, the mechanical property causing is undesirable, and a lot of problems of driving voltage height etc. often.Cholesteric phase flexible liquid crystal device prepared by the new improved method of this employing provided by the invention, this device has the polymkeric substance wall of special English truss shape, can effectively address the above problem.
To achieve these goals, the present invention adopts following technical scheme.
A kind of cholesteric phase flexible liquid crystal device, comprise light-absorption layer, the first flexible base, board, the second flexible base, board, the first electrode, the second electrode, the first oriented layer, the second oriented layer, liquid crystal compound layer, described the first electrode, the second electrode are all transparency electrodes of energy printing opacity, liquid crystal compound layer is the liquid crystal compound layer with special construction polymkeric substance wall, and this liquid crystal compound layer with special construction polymkeric substance wall is arranged between the first oriented layer and the second oriented layer.
Preferably, described the first oriented layer and the second oriented layer are any one the oriented layer being coated with in polyamide, octadecyl malonic acid, stupid formic acid derivates, long chain quaternary.
In above-mentioned arbitrary technical scheme, preferably, described the first oriented layer and the second oriented layer have been carried out suitable friction orientation in oriented layer.
In above-mentioned arbitrary technical scheme preferably, the described liquid crystal compound layer with special construction polymkeric substance wall is that ultraviolet light acts on flexible liquid crystal device by the light transmission part in optical mask plate, monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, thereby form the polymkeric substance wall of given shape.
In above-mentioned arbitrary technical scheme preferably, the described liquid crystal compound layer with special construction polymkeric substance wall irradiates the polymkeric substance wall of lower formation special construction by special optical mask plate, the light transmission part of the optical mask plate that this is special is comprised of many regular triangular truss structures, and this special construction can also further expand.
In above-mentioned arbitrary technical scheme preferably, the described liquid crystal compound layer with special construction polymkeric substance wall is arranged in the liquid crystal capsule of liquid crystal layer, and by polymkeric substance wall, wrapped up, polymkeric substance wall is comprised of many special triangular truss structures, and this special construction can also further expand.
In above-mentioned arbitrary technical scheme preferably, described in have in the liquid crystal compound layer of special construction polymkeric substance wall and also added polar nano particle.
In above-mentioned arbitrary technical scheme, preferably, described light-absorption layer is positioned at below the first flexible base, board, or between the first flexible base, board and the first electrode, or between the first electrode and the first oriented layer, it can improve the contrast of flexible display.
In above-mentioned arbitrary technical scheme preferably, described polymer precursor is for encapsulated polymer precursor, its under certain light intensity, control monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, and by controlling light intensity, control the speed of polyreaction, so that liquid crystal can successfully be separated out from potpourri, form special regular capsule structure.
In above-mentioned arbitrary technical scheme, preferably, described liquid crystal capsule has special triangular truss structure, and the height that in this structure, capsule size is 10-500 μ m, polymkeric substance wall is that 1～20 μ m, polymkeric substance wall width are 5-50 μ m.
The invention also discloses a kind of preparation method of cholesteric phase flexible liquid crystal device, comprise cholesteric phase flexible liquid crystal device as above, the method comprises the steps: S1, produces transparency electrode on flexible base, board, in order to drive cholesteric phase flexible display apparatus; S2, in flexible base, board electrode one side coating oriented layer, can be coated with any one the oriented layer in polyamide, octadecyl malonic acid, benzoic acid derivative, long-chain quaternary ammonium, and carry out under certain conditions suitable friction orientation and process, so that cholesteric phase flexible display driving voltage in the situation that keeping bistable electro light characteristic reaches best with contrast combination property; S3, pastes box and processes, and leaves relative both sides for filling with encapsulated cholesteric liquid crystal potpourri; S4, in certain ratio, prepare encapsulated liquid crystal compound, potpourri comprises polymer monomer, light trigger, crosslinking chemical and cholesteric liquid crystal, and during preparation, proportion is strictly prepared by weight, makes the photoelectric properties of cholesteric phase flexible liquid crystal device and shows that combination property reaches best; S5, is filled into the encapsulated liquid crystal compound preparing in liquid crystal cell, and processes with sealant sealing box; S6, by covering irradiating ultraviolet light under plate at specific light, make polymkeric substance constantly aggregate into polymkeric substance polymeric wall, and present the special encapsulated shapes such as triangular truss, make the cholesteric phase flexible display apparatus after microencapsulation have good photoelectric display and mechanical integrated performance.
The present invention is this has the flexible display apparatus and preparation method thereof of the cholesteric liquid crystal capsule of special ordered structure, its cholesteric phase flexible liquid crystal device comprises light-absorption layer, the first flexible base, board, the second flexible base, board, the first electrode, the second electrode, the first oriented layer, the second oriented layer, has the liquid crystal compound layer of special construction polymkeric substance wall, in addition, also provide the optical mask plate of two kinds of special shapes, for the preparation of the liquid crystal layer that has triangular truss special construction polymkeric substance wall.Cholesteric phase flexible liquid crystal device of the present invention forms the method for polymkeric substance wall with light initiation polymerization thing monomer polymerization reaction take place, liquid crystal molecule is carried out to encapsulated parcel, polymkeric substance wall is comprised of many regular triangular truss structures, by structure mechanics analysis, such shape polymkeric substance wall is stressed evenly, Stability Analysis of Structures, and the mechanical property of flexible display apparatus obviously improves, can bear larger each stress, thereby improve the stability of flexible display apparatus.
Cholesteric phase flexible liquid crystal apparatus structure comprises light-absorption layer, the first flexible base, board, the second flexible base, board, the first electrode, the second electrode, the first oriented layer, the second oriented layer, liquid crystal molecule, polymkeric substance wall, in addition, also needing optical mask plate and specific photopolymerization condition is ultraviolet light and the light application time of some strength.The first electrode and the second electrode be all can printing opacity transparency electrode, a kind of in the conductive layer of transparency materials such as indium-zinc oxide (IZO), zinc oxide (zinc oxide), indium tin oxide (ITO), tin-oxide (tin oxide).The first oriented layer and the second oriented layer can be to be coated with the wherein a kind of oriented layer such as polyamide, octadecyl phthalic acid, benzoic acid derivative, long chain quaternary, in oriented layer, carry out the driving voltage that suitable friction can reduce cholesteric liquid crystal, can also keep bistable state photoelectric effect, and can also improve contrast simultaneously.For encapsulated polymer precursor, on a lot of patents or document, there is open discussion, here if under certain light intensity, control monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, and by controlling light intensity, control the speed of polyreaction, the speed of polyreaction is wanted suitably, so that liquid crystal can successfully be separated out from potpourri, form special regular capsule structure.Ultraviolet light acts on flexible liquid crystal device by the light transmission part in optical mask plate, the monomer in potpourri and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, form the polymkeric substance wall of given shape.
With optical mask plate, control liquid crystal capsule shape, the invention provides two kinds and can effectively improve the optical mask plate of flexible liquid crystal device performance, but be not limited only to two kinds of given shape templates here, concrete can also further expand.By optical mask plate, controlled the shape of liquid crystal capsule, in the encapsulated liquid crystal cell of being made by special optical mask plate provided by the invention, high molecular polymer wall is comprised of many triangular truss structures, by structure mechanics analysis, such shape polymkeric substance wall is stressed evenly, Stability Analysis of Structures, and the mechanical property of flexible display apparatus obviously improves, can bear larger each stress, thereby improve the stability of flexible display apparatus.In encapsulated liquid crystal compound, a little nano particle can be added, the driving voltage of flexible display apparatus can be further reduced.It is also very favourable by the encapsulated liquid crystal panel of optical mask plate of given shape, for the pixel of liquid crystal indicator, being controlled.
Cholesteric phase flexible liquid crystal device of the present invention is also provided with one deck light-absorption layer, can improve the contrast of flexible display, light-absorption layer can be positioned at below the first flexible base, board, also can be between the first flexible base, board and the first electrode or between the first electrode and the first oriented layer.
The method for making of cholesteric phase flexible liquid crystal device of the present invention comprises: on flexible base, board, produce transparency electrode, in order to drive cholesteric phase flexible display apparatus; In flexible base, board electrode one side coating oriented layer, such as being coated with the wherein a kind of oriented layer such as polyamide, octadecyl malonic acid, benzoic acid derivative, long chain quaternary, and carry out under certain conditions suitable friction orientation and process, so that cholesteric phase flexible display driving voltage in the situation that keeping bistable electro light characteristic reaches best with contrast combination property; Paste box and process, leave relative both sides for filling with encapsulated cholesteric liquid crystal the potpourri preferred UV glue of fluid sealant or AB glue for laminating; In certain ratio, prepare encapsulated liquid crystal compound, potpourri comprises polymer monomer, light trigger, crosslinking chemical and cholesteric liquid crystal, during preparation, proportion is strictly prepared by weight, makes the photoelectric properties of cholesteric phase flexible liquid crystal device and shows that combination property reaches best; Under vacuum environment, utilize capillary effect, the encapsulated liquid crystal compound preparing is filled in liquid crystal cell, and processes with sealant sealing box; By covering irradiating ultraviolet light under plate at specific light, make polymkeric substance constantly aggregate into polymkeric substance polymeric wall, and present the special encapsulated shapes such as triangular truss, make the cholesteric phase flexible display apparatus after microencapsulation have good photoelectric display and mechanical integrated performance.
Cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof, this display device relatively the display device of other class phases have that low-power consumption, volume are little, low etc. the advantage of cost, the present invention forms the encapsulated flexible panel of cholesteric liquid crystal by the mode with special, polymkeric substance wall wherein has specific structure, makes cholesteric phase flexible liquid crystal device have good photoelectric properties, demonstration and mechanical integrated performance.
Accompanying drawing explanation
Fig. 1 is according to the encapsulated method schematic diagram of the cholesteric phase flexible liquid crystal device of a preferred embodiment of cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof;
Fig. 2 is according to a kind of schematic diagram that can obtain the optical mask plate of good encapsulated structure of a preferred embodiment of cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof;
Fig. 3 is for obtaining the schematic diagram of the optical mask plate of good encapsulated structure according to the another kind of a preferred embodiment of cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof;
Fig. 4 is according to the structural representation of a kind of cholesteric phase flexible liquid crystal device of a preferred embodiment of cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof;
Fig. 5 is according to the structural representation of a kind of cholesteric phase flexible liquid crystal device of a preferred embodiment of cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof;
Fig. 6 is according to the structural representation of a kind of cholesteric phase flexible liquid crystal device of a preferred embodiment of cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof;
Fig. 7 is according to the structural representation of a kind of cholesteric phase flexible liquid crystal device of a preferred embodiment of cholesteric phase flexible liquid crystal device of the present invention and preparation method thereof.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated, below describe only conduct demonstration and explain, the present invention is not done to any pro forma restriction.
Cholesteric phase flexible liquid crystal device comprises light-absorption layer, the first flexible base, board, the second flexible base, board, the first electrode, the second electrode, the first oriented layer, the second oriented layer, liquid crystal compound layer, described the first electrode, the second electrode are all transparency electrodes of energy printing opacity, in addition, this device also comprises optical mask plate, and ultraviolet light acts on this flexible liquid crystal device by optical mask plate; Described liquid crystal compound layer is the liquid crystal compound layer with special construction polymkeric substance wall, and this liquid crystal compound layer with special construction polymkeric substance wall is arranged between the first oriented layer and the second oriented layer; The polymkeric substance wall forming by polyreaction carries out encapsulated parcel to liquid crystal molecule and forms cholesteric phase flexible liquid crystal device.
The first oriented layer and the second oriented layer are any one the oriented layer being coated with in polyamide, octadecyl malonic acid, stupid formic acid derivates, long chain quaternary.The first oriented layer and the second oriented layer have been carried out suitable friction orientation in oriented layer.The liquid crystal compound layer with special construction polymkeric substance wall is that ultraviolet light acts on flexible liquid crystal device by the light transmission part in optical mask plate, monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, thereby form the polymkeric substance wall of given shape.The liquid crystal compound layer with special construction polymkeric substance wall irradiates the polymkeric substance wall of lower formation special construction by special optical mask plate, the light transmission part of the optical mask plate that this is special is comprised of many regular triangular truss structures, and this special construction can also further expand.The liquid crystal compound layer with special construction polymkeric substance wall is arranged in the liquid crystal capsule of liquid crystal layer, and is wrapped up by polymkeric substance wall, and polymkeric substance wall is comprised of many special triangular truss structures, and this special construction can also further expand.Have in the liquid crystal compound layer of special construction polymkeric substance wall and also added polar nano particle.Light-absorption layer is positioned at below the first flexible base, board, or between the first flexible base, board and the first electrode, or between the first electrode and the first oriented layer, it can improve the contrast of flexible display.Polymer precursor is for encapsulated polymer precursor, its under certain light intensity, control monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, and by controlling light intensity, control the speed of polyreaction, so that liquid crystal can successfully be separated out from potpourri, form special regular capsule structure.Liquid crystal capsule has special triangular truss structure, and the height that in this structure, capsule size is 10-500 μ m, polymkeric substance wall is that 1～20 μ m, polymkeric substance wall width are 5-50 μ m.
The cholesteric phase flexible liquid crystal device preparation method who adopts cholesteric phase flexible liquid crystal device as above, the method comprises the steps: S1, produces transparency electrode on flexible base, board, in order to drive cholesteric phase flexible display apparatus; S2, in flexible base, board electrode one side coating oriented layer, can be coated with any one the oriented layer in polyamide, octadecyl malonic acid, benzoic acid derivative, long-chain quaternary ammonium, and carry out under certain conditions suitable friction orientation and process, so that cholesteric phase flexible display driving voltage in the situation that keeping bistable electro light characteristic reaches best with contrast combination property; S3, pastes box and processes, and leaves relative both sides for filling with encapsulated cholesteric liquid crystal potpourri; S4, in certain ratio, prepare encapsulated liquid crystal compound, potpourri comprises polymer monomer, light trigger, crosslinking chemical and cholesteric liquid crystal, and during preparation, proportion is strictly prepared by weight, makes the photoelectric properties of cholesteric phase flexible liquid crystal device and shows that combination property reaches best; S5, is filled into the encapsulated liquid crystal compound preparing in liquid crystal cell, and processes with sealant sealing box; S6, by covering irradiating ultraviolet light under plate at specific light, make polymkeric substance constantly aggregate into polymkeric substance polymeric wall, and present the special encapsulated shapes such as triangular truss, make the cholesteric phase flexible display apparatus after microencapsulation have good photoelectric display and mechanical integrated performance.
As shown in Figure 1, the encapsulated method of cholesteric phase flexible display, its flexible display apparatus partly comprises light-absorption layer 100, the first flexible base, board 110, the second flexible base, board 120, the first electrode 130, the second electrode 140, the first oriented layer 150, the second oriented layer 160, liquid crystal molecule 171, polymer precursor 172, polymkeric substance wall 173, and encapsulated optical mask plate 180 and the photopolymerization condition of needing of flexible liquid crystal device is the ultraviolet light 190 of some strength.The first electrode 130 and the second electrode 140 be all can printing opacity transparency electrode, a kind of in the conductive layer of transparency materials such as indium-zinc oxide (IZO), zinc oxide (zinc oxide), indium tin oxide (ITO), tin-oxide (tin oxide).The first oriented layer and the second oriented layer can be to be coated with the wherein a kind of oriented layer such as polyamide, octadecyl phthalic acid, benzoic acid derivative, long chain quaternary, in oriented layer, carry out the driving voltage that suitable friction can reduce cholesteric liquid crystal, can also keep bistable state photoelectric effect, and can also improve contrast simultaneously.For encapsulated polymer precursor, on a lot of patents or document, there is open discussion, here if under certain light intensity, control monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, and by controlling light intensity, control the speed of polyreaction, the speed of polyreaction is wanted suitably, so that liquid crystal can successfully be separated out from potpourri, form special regular capsule structure.
Ultraviolet light 190 acts on flexible liquid crystal device by the light transmission part in optical mask plate, the monomer in polymer precursor 172 and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, form the polymkeric substance wall 173 of given shape.
By optical mask plate, controlled the shape of liquid crystal capsule, in the encapsulated liquid crystal cell of being made by the optical mask plate of shape shown in Fig. 2 and Fig. 3, high molecular polymer wall is comprised of many triangular truss structures, by structure mechanics analysis, such shape polymkeric substance wall is stressed evenly, Stability Analysis of Structures, and the mechanical property of flexible display apparatus obviously improves, can bear larger each stress, thereby improve the stability of flexible display apparatus.
The size of the triangular truss structure liquid crystal capsule of preparing by this optical mask plate is at 10-500 μ m, height 1～20 μ m of polymkeric substance wall, polymkeric substance wall width 5-50 μ m.
In encapsulated liquid crystal compound, add a little nano particle, further reduce the driving voltage of flexible display.
It is also very favourable by the encapsulated liquid crystal panel of optical mask plate of given shape, for the pixel of liquid-crystal apparatus, being controlled.
Light-absorption layer 100 can be positioned at below the first flexible base, board, also can be between the first flexible base, board and the first electrode or between the first electrode and the first oriented layer, and Fig. 4,5, the 6th, the schematic diagram of the cholesteric phase flexible display apparatus under different situations.
Fig. 4 cholesteric phase flexible display apparatus, comprise: light-absorption layer 210, the flexible infrabasal plate 220 of the first flexible base, board 210, second, the first electrode 230, the second electrode 240, the first oriented layer 250, the second oriented layer 260, liquid crystal molecule 271, polymkeric substance wall 273, encapsulated optical mask plate 280 and the photopolymerization condition of needing of flexible liquid crystal device is the ultraviolet light 290 of some strength.
Fig. 5 cholesteric phase flexible display apparatus, comprise: light-absorption layer 310, the flexible infrabasal plate 320 of the first flexible base, board 310, second, the first electrode 330, the second electrode 340, the first oriented layer 350, the second oriented layer 360, liquid crystal molecule 371, polymkeric substance wall 373, in addition, encapsulated optical mask plate 380 and the photopolymerization condition of needing of flexible display apparatus is the ultraviolet light 390 of some strength.
Fig. 6 cholesteric phase flexible display apparatus, comprise: light-absorption layer 410, the flexible infrabasal plate 420 of the first flexible base, board 410, second, the first electrode 430, the second electrode 440, the first oriented layer 450, the second oriented layer 460, liquid crystal molecule 471, polymkeric substance wall 473, encapsulated optical mask plate 480 and the photopolymerization condition of needing of flexible display apparatus is the ultraviolet light 490 of some strength.
The encapsulated preparation process of Fig. 4,5,6 cholesteric phase flexible display apparatus is substantially all identical.
Fig. 7 has represented the preparation method of a kind of allusion quotation phase of cholesteric phase flexible display apparatus of the present invention, comprising: step S1 produces transparency electrode, in order to drive cholesteric phase flexible display apparatus on flexible base, board; Step S2, in flexible base, board electrode one side coating oriented layer, such as being coated with the wherein a kind of oriented layer such as polyamide, octadecyl malonic acid, benzoic acid derivative, long chain quaternary, and carry out under certain conditions suitable friction orientation and process, so that cholesteric phase flexible display driving voltage in the situation that keeping bistable electro light characteristic reaches best with contrast combination property; Step S3, pastes box and processes, and leaves relative both sides for filling with encapsulated cholesteric liquid crystal potpourri; Step S4, in certain ratio, prepare encapsulated liquid crystal compound, potpourri comprises polymer monomer, light trigger, crosslinking chemical and cholesteric liquid crystal, and during preparation, proportion is strictly prepared by weight, makes the photoelectric properties of cholesteric phase flexible liquid crystal device and shows that combination property reaches best; Step S5, is filled into the encapsulated liquid crystal compound preparing in liquid crystal cell, and processes with sealant sealing box; Step S6, by covering irradiating ultraviolet light under plate at specific light, make polymkeric substance constantly aggregate into polymkeric substance polymeric wall, and present the special encapsulated shapes such as triangular truss, make the cholesteric phase flexible display apparatus after microencapsulation have good photoelectric display and mechanical integrated performance.
The above is only that the preferred embodiment of the present invention is described; not that scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (10)
1. a cholesteric phase flexible liquid crystal device, comprise light-absorption layer, the first flexible base, board, the second flexible base, board, the first electrode, the second electrode, the first oriented layer, the second oriented layer, liquid crystal compound layer, described the first electrode, the second electrode are all transparency electrodes of energy printing opacity, it is characterized in that: also comprise optical mask plate, ultraviolet light acts on this flexible liquid crystal device by optical mask plate; Described liquid crystal compound layer is the liquid crystal compound layer with special construction polymkeric substance wall, and this liquid crystal compound layer with special construction polymkeric substance wall is arranged between the first oriented layer and the second oriented layer; The polymkeric substance wall forming by polyreaction carries out encapsulated parcel to liquid crystal molecule and forms cholesteric phase flexible liquid crystal device.
2. cholesteric phase flexible liquid crystal device as claimed in claim 1, is characterized in that: described the first oriented layer and the second oriented layer are any one the oriented layer being coated with in polyamide, octadecyl malonic acid, stupid formic acid derivates, long chain quaternary.
3. cholesteric phase flexible liquid crystal device as claimed in claim 1, is characterized in that: described the first oriented layer and the second oriented layer have been carried out suitable friction orientation in oriented layer.
4. cholesteric phase flexible liquid crystal device as claimed in claim 1, it is characterized in that: described in there is special construction polymkeric substance wall liquid crystal compound layer be that ultraviolet light acts on flexible liquid crystal device by the light transmission part in optical mask plate, monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, thereby form the polymkeric substance wall of given shape.
5. cholesteric phase flexible liquid crystal device as claimed in claim 1, it is characterized in that: described in there is special construction polymkeric substance wall liquid crystal compound layer by special optical mask plate, irradiate the polymkeric substance wall of lower formation special construction, the light transmission part of the optical mask plate that this is special is comprised of many regular triangular truss structures, and this special construction can also further expand.
6. cholesteric phase flexible liquid crystal device as claimed in claim 1, it is characterized in that: described in there is special construction polymkeric substance wall liquid crystal compound layer be arranged in the liquid crystal capsule of liquid crystal layer, and wrapped up by polymkeric substance wall, polymkeric substance wall is comprised of many special triangular truss structures, and this special construction can also further expand.
7. cholesteric phase flexible liquid crystal device as claimed in claim 1, is characterized in that: described in have in the liquid crystal compound layer of special construction polymkeric substance wall and also added polar nano particle.
8. cholesteric phase flexible liquid crystal device as claimed in claim 1, it is characterized in that: described light-absorption layer is positioned at below the first flexible base, board, or between the first flexible base, board and the first electrode, or between the first electrode and the first oriented layer, it can improve the contrast of flexible display.
9. cholesteric phase flexible liquid crystal device as claimed in claim 1, it is characterized in that: described polymer precursor is for encapsulated polymer precursor, its under certain light intensity, control monomer in polymer precursor and crosslinking chemical can be under the effect of light trigger polymerization reaction take place, and by controlling light intensity, control the speed of polyreaction, so that liquid crystal can successfully be separated out from potpourri, form special regular capsule structure.
10. a preparation method for cholesteric phase flexible liquid crystal device, comprises the cholesteric phase flexible liquid crystal device as described in claim 1-10, it is characterized in that: the method comprises the steps:
S1 produces transparency electrode on flexible base, board, in order to drive cholesteric phase flexible display apparatus; ,
S2, in flexible base, board electrode one side coating oriented layer, can be coated with any one the oriented layer in polyamide, octadecyl malonic acid, benzoic acid derivative, long-chain quaternary ammonium, and carry out under certain conditions suitable friction orientation and process, so that cholesteric phase flexible display driving voltage in the situation that keeping bistable electro light characteristic reaches best with contrast combination property;
S3, pastes box and processes, and leaves relative both sides for filling with encapsulated cholesteric liquid crystal potpourri;
S4, in certain ratio, prepare encapsulated liquid crystal compound, potpourri comprises polymer monomer, light trigger, crosslinking chemical and cholesteric liquid crystal, and during preparation, proportion is strictly prepared by weight, makes the photoelectric properties of cholesteric phase flexible liquid crystal device and shows that combination property reaches best;
S5, is filled into the encapsulated liquid crystal compound preparing in liquid crystal cell, and processes with sealant sealing box;
S6, by covering irradiating ultraviolet light under plate at specific light, make polymkeric substance constantly aggregate into polymkeric substance polymeric wall, and present the special encapsulated shapes such as triangular truss, make the cholesteric phase flexible display apparatus after microencapsulation have good photoelectric display and mechanical integrated performance.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093519A (en) * | 2015-08-13 | 2015-11-25 | 信利半导体有限公司 | Electrowetting display panel, display device, and display panel display method |
| WO2018028019A1 (en) * | 2016-08-10 | 2018-02-15 | 深圳市华星光电技术有限公司 | Liquid crystal medium mixture and liquid crystal display panel |
| CN107966847A (en) * | 2017-10-25 | 2018-04-27 | 友达光电股份有限公司 | Display panel and method for manufacturing the same |
| JP2018112702A (en) * | 2017-01-13 | 2018-07-19 | 国立大学法人東北大学 | Method for manufacturing polymer dispersion type light control device in reverse mode |
| CN109884834A (en) * | 2019-04-24 | 2019-06-14 | 中国科学院宁波材料技术与工程研究所 | A kind of liquid crystal display device, preparation method and its application method |
| CN109991773A (en) * | 2018-01-03 | 2019-07-09 | 江苏和成显示科技有限公司 | A kind of microcapsules liquid crystal display device and its application |
| CN110568653A (en) * | 2019-09-12 | 2019-12-13 | 武汉华星光电技术有限公司 | Display panel and display device |
| WO2020057006A1 (en) * | 2018-09-20 | 2020-03-26 | 武汉华星光电技术有限公司 | Fabrication method for liquid crystal display panel, liquid crystal display panel and electronic device |
| WO2022001450A1 (en) * | 2020-06-29 | 2022-01-06 | 京东方科技集团股份有限公司 | Dimming structure, fabrication method therefor, and dimming module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090409A (en) * | 2014-06-28 | 2014-10-08 | 中能柔性光电（滁州）有限公司 | Cholesteric-phase flexible liquid crystal display device and preparation method thereof |
| CN109860268A (en) * | 2019-03-15 | 2019-06-07 | 云谷（固安）科技有限公司 | Display device and display |
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| CN103217830A (en) * | 2013-03-15 | 2013-07-24 | 复旦大学 | Encapsulated liquid crystal thin film for flexible display and preparation method for encapsulated liquid crystal thin film |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093519A (en) * | 2015-08-13 | 2015-11-25 | 信利半导体有限公司 | Electrowetting display panel, display device, and display panel display method |
| WO2018028019A1 (en) * | 2016-08-10 | 2018-02-15 | 深圳市华星光电技术有限公司 | Liquid crystal medium mixture and liquid crystal display panel |
| US20180171235A1 (en) * | 2016-08-10 | 2018-06-21 | Shenzhen China Star Optoelectronics Technology Co. , Ltd. | Liquid crystal medium mixture and liquid crystal display panel |
| JP7064188B2 (en) | 2017-01-13 | 2022-05-10 | 国立大学法人東北大学 | Manufacturing method of reverse mode polymer distributed dimming device |
| JP2018112702A (en) * | 2017-01-13 | 2018-07-19 | 国立大学法人東北大学 | Method for manufacturing polymer dispersion type light control device in reverse mode |
| CN107966847B (en) * | 2017-10-25 | 2020-07-10 | 友达光电股份有限公司 | Display panel and method for manufacturing the same |
| CN107966847A (en) * | 2017-10-25 | 2018-04-27 | 友达光电股份有限公司 | Display panel and method for manufacturing the same |
| CN109991773A (en) * | 2018-01-03 | 2019-07-09 | 江苏和成显示科技有限公司 | A kind of microcapsules liquid crystal display device and its application |
| CN109991773B (en) * | 2018-01-03 | 2022-04-12 | 江苏和成显示科技有限公司 | Microcapsule liquid crystal display device and application thereof |
| WO2020057006A1 (en) * | 2018-09-20 | 2020-03-26 | 武汉华星光电技术有限公司 | Fabrication method for liquid crystal display panel, liquid crystal display panel and electronic device |
| CN109884834A (en) * | 2019-04-24 | 2019-06-14 | 中国科学院宁波材料技术与工程研究所 | A kind of liquid crystal display device, preparation method and its application method |
| CN110568653A (en) * | 2019-09-12 | 2019-12-13 | 武汉华星光电技术有限公司 | Display panel and display device |
| WO2022001450A1 (en) * | 2020-06-29 | 2022-01-06 | 京东方科技集团股份有限公司 | Dimming structure, fabrication method therefor, and dimming module |
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