CN110543044A - polymer dispersed liquid crystal glass and preparation method thereof - Google Patents
polymer dispersed liquid crystal glass and preparation method thereof Download PDFInfo
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- CN110543044A CN110543044A CN201910812664.0A CN201910812664A CN110543044A CN 110543044 A CN110543044 A CN 110543044A CN 201910812664 A CN201910812664 A CN 201910812664A CN 110543044 A CN110543044 A CN 110543044A
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- liquid crystal
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- transparent plastic
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
the invention discloses polymer dispersed liquid crystal glass and a preparation method thereof, and the polymer dispersed liquid crystal glass comprises upper ITO glass, lower ITO glass, an upper ITO layer and a lower ITO layer, wherein the upper ITO glass is arranged at the top of the upper ITO layer, the upper ITO layer is in contact with the lower ITO layer, the lower ITO glass is arranged at the bottom of the lower ITO layer, the polymer dispersed liquid crystal glass also comprises a transparent plastic film layer, one side surface of the transparent plastic film layer is coated with a layer of polymer dispersed liquid crystal, the other end of the transparent plastic film layer is adhered and fixed on the upper ITO layer and the lower ITO layer, and the transparent plastic film layer is folded along the middle of the transparent plastic film layer and enables the upper ITO layer and the; the invention utilizes a layer of transparent plastic film layer to increase the preparation efficiency of the polymer dispersed liquid crystal glass, can quickly attach the polymer dispersed liquid crystal glass, is particularly suitable for mass production and processing, ensures that the attached polymer dispersed liquid crystal is more uniform, can conveniently remove the polymer dispersed liquid crystal, and can be more conveniently recycled.
Description
Technical Field
the invention relates to glass, in particular to polymer dispersed liquid crystal glass and a preparation method thereof.
background
The polymer dispersed liquid crystal is prepared through mixing low molecular liquid crystal and polymer, polymerizing to form micron level liquid crystal microdroplets dispersed homogeneously in the polymer network, and utilizing the dielectric anisotropy of liquid crystal molecule to obtain the material with electrooptical response characteristic. Compared with the traditional display device, the polymer dispersed liquid crystal display has many advantages, for example, a polarizing film and an orientation layer are not needed, the liquid crystal display is insensitive to the thickness of a liquid crystal box, a hot pressing box is not needed, liquid crystal does not need to be injected, the polymer dispersed liquid crystal is uniformly coated between an upper ITO glass and a lower ITO glass only through spin coating or roll coating, the manufacturing process is simple, the large-area liquid crystal display is easy to manufacture, under the driving of an external electric field, the intelligent glass manufactured by the polymer dispersed liquid crystal has the optical switch characteristic, and the double requirements of lighting and privacy protection are met.
At present, when the polymer dispersion liquid is used for manufacturing glass, the common process is to use external smearing equipment to brush the polymer dispersion liquid on the glass in a rolling manner, then the glass is attached to the glass and dried and bonded to form a piece of fixed glass, but the method only can be used for paving the glass on a workbench firstly and then smearing the glass, and the situation that the glass is cracked or the polymer dispersion liquid is adhered to the back of the glass in the processing work is caused because the glass is crisp in texture and poor in strength control during smearing, so that the glass is often required to be cleaned, then the two pieces of glass are covered and dried, and the damaged glass needs to be replaced, so that the production cost is increased. In addition, after the polymer dispersion liquid glass is scrapped at a later stage, the polymer dispersion liquid on the glass is difficult to take down due to the fact that the polymer dispersion liquid is bonded with the glass, and the polymer dispersion liquid cannot be recycled at the later stage.
Disclosure of Invention
the invention aims to solve the technical problem that polymer dispersed liquid crystal glass and a preparation method thereof adopt a transparent film layer, and polymer dispersed liquid can be coated on the upper end in advance and then bonded and attached, so that more products can be placed on a processing table, the coating process is lossless, the bonding and assembly can be carried out quickly, the later stage can be conveniently disassembled, recombined and reused, and the cost is saved.
The invention is realized by the following technical scheme: the utility model provides a polymer dispersion liquid crystal glass, including last ITO glass, lower ITO glass, go up ITO layer and lower ITO layer, it sets up in the top on last ITO layer to go up ITO glass, it contacts with lower ITO layer to go up the ITO layer, lower ITO glass sets up in the bottom on lower ITO layer, still include a transparent plastic film layer, paint one deck polymer dispersion liquid crystal on this transparent plastic film layer's a side, the other end bonding of transparent plastic film layer is fixed on last ITO layer and lower ITO layer, fifty percent discount and make and go up ITO layer and lower ITO layer and dock the form about being in the middle of along transparent plastic film layer.
As an optimized technical scheme, transparent glue is applied to one end of the transparent plastic film layer and is respectively bonded and fixed with the upper ITO glass and the lower ITO glass.
as a preferable technical scheme, the transparent plastic film layer adopts a polyethylene terephthalate substrate.
Preferably, a gasket is further arranged between the upper ITO layer and the lower ITO layer, and the gasket is mixed between the folded transparent plastic film layers.
As an optimized technical scheme, the upper flexible circuit board FPC is bound below the upper ITO glass through the upper anisotropic conductive adhesive tape ACF, and the lower flexible circuit board FPC is bound at the upper right side of the lower ITO glass through the lower anisotropic conductive adhesive tape ACF.
A preparation method of polymer dispersed liquid crystal glass specifically comprises the following steps:
Preparing a transparent plastic film layer, wherein the length of the transparent plastic film layer is equal to the butt joint length of the upper ITO glass and the lower ITO glass, and a folding line needs to be formed in the middle of the transparent plastic film layer in a folding mode;
Secondly, coating polymer dispersed liquid crystal on the transparent plastic film layer by using external coating equipment or manpower to uniformly coat the polymer dispersed liquid crystal on the transparent plastic film layer;
Thirdly, the upper ITO layer and the lower ITO layer are placed in a side-by-side butt joint mode, then the transparent plastic film layer coated with the polymer dispersed liquid crystal is flatly laid on the upper end faces of the upper ITO layer and the lower ITO layer, and the other end of the transparent plastic film layer is fixedly bonded with the upper ITO layer and the lower ITO layer;
step four, placing a liner on the transparent plastic film layer;
Fifthly, folding the upper ITO layer and the lower ITO layer along a folding line to enable the polymer dispersed liquid crystal to be folded and contacted;
Step six, attaching the coated upper ITO layer and the coated lower ITO layer through alignment MARK, and curing the upper ITO layer and the lower ITO layer for 80 seconds through UV light intensity of 30mw/cm 2;
step seven, binding FPCA at the lower glass pin end of the liquid crystal box formed after curing through an anisotropic conductive adhesive tape ACF CP 9620F; and bonding the FPC B at the upper glass pin end of the liquid crystal box formed after curing through an anisotropic conductive adhesive tape ACF CP 9620F.
the invention has the beneficial effects that: according to the invention, one transparent plastic film layer is adopted, polymer dispersed liquid crystal can be coated on the transparent plastic film layer firstly, then the polymer dispersed liquid crystal is bonded in batches, and the two ITO layers are folded;
In addition, the transparent plastic film layer is coated on the processing table, so that the ITO layer is free of loss, later-period cleaning is not needed, and after the coating is finished, the transparent plastic film layer is directly bonded on the ITO layer, so that the working efficiency is greatly improved;
And the transparent plastic film layer can be torn off at the later stage, the ITO layer and the ITO glass are recovered, and the polymer dispersed liquid crystal can be reused after being coated with new polymer dispersed liquid crystal, so that the economic cost is reduced, and the recovery is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an expanded structural view of the present invention;
Fig. 2 is a schematic diagram of the bonding and curing finished product of the invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
the use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, including last ITO glass 1, lower ITO glass 2, go up ITO layer 4 and lower ITO layer 5, it sets up in the top on last ITO layer 4 to go up ITO glass 1, go up ITO layer 4 and the contact of lower ITO layer 5, lower ITO glass 2 sets up in the bottom on lower ITO layer 5, still include a transparent plastic film layer 6, paint one deck polymer dispersed liquid crystal 3 on this transparent plastic film layer 6's a side, the other end bonding of transparent plastic film layer 6 is fixed on last ITO layer 4 and lower ITO layer 5, it is the butt joint form about middle fifty percent discount and make last ITO layer and lower ITO layer be along transparent plastic film layer 6.
Wherein, transparent glue is beaten to one end of transparent plastic film layer 6 and is fixed with last ITO glass 1 and lower ITO glass 2 bonding respectively, and transparent plastic film layer 6 adopts the polyethylene glycol terephthalate substrate.
A spacer (not shown) is further provided between the upper ITO layer 4 and the lower ITO layer 5, and the spacer is mixed between the transparent plastic film layers folded in two. The flexible circuit board FPC is bound below the upper ITO glass through the upper anisotropic conductive adhesive tape ACF, and the flexible circuit board FPC is bound below the right upper side of the lower ITO glass through the lower anisotropic conductive adhesive tape ACF.
The processing steps are as follows:
Preparing a transparent plastic film layer, wherein the length of the transparent plastic film layer is equal to the butt joint length of the upper ITO glass and the lower ITO glass, and the transparent plastic film layer needs to be folded in half in the middle to form a folding line;
secondly, coating polymer dispersed liquid crystal on the transparent plastic film layer by using external coating equipment or manually, so that the polymer dispersed liquid crystal is uniformly coated on the transparent plastic film layer;
thirdly, the upper ITO layer and the lower ITO layer are placed in a butt joint mode side by side, then the transparent plastic film layer coated with the polymer dispersed liquid crystal is flatly laid on the upper end faces of the upper ITO layer and the lower ITO layer, and the other end of the transparent plastic film layer is fixedly bonded with the upper ITO layer and the lower ITO layer;
fourthly, placing a liner on the transparent plastic film layer;
Fifthly, the upper ITO layer and the lower ITO layer are folded along a folding line, so that the polymer dispersed liquid crystal is in folding contact, and because the upper ITO layer and one side of the lower ITO layer are connected in folding through the polymer dispersed liquid crystal, only one side of an opening is arranged between the upper ITO layer and the lower ITO layer, compared with the traditional structure with openings on two sides, the connection strength can be higher;
Sixthly, attaching the coated upper ITO layer and the coated lower ITO layer through alignment MARK, and curing the upper ITO layer and the lower ITO layer for 80 seconds through UV light intensity of 30mw/cm 2;
seventhly, binding FPCA at the lower glass pin end of the liquid crystal box formed after curing through an anisotropic conductive adhesive tape ACF CP 9620F; and bonding the FPC B at the upper glass pin end of the liquid crystal box formed after curing through an anisotropic conductive adhesive tape ACF CP 9620F.
The material performance with electro-optic response characteristic is obtained by utilizing the dielectric anisotropy of the polymer dispersed liquid crystal molecules, and the polymer dispersed liquid crystal molecules mainly work between a scattering state and a transparent state and have the function of certain gray level to manufacture the glass, so that the intensity of light rays entering a room can be adjusted and changed according to the needs of people. The liquid crystal display does not need a polarizing film and an orientation layer, has simple manufacturing process, is easy to be manufactured into a large-area liquid crystal display and the like, and is used in the aspects of adjustable lighting glass and the like such as optical modulators, thermosensitive and pressure-sensitive devices, electric control glass, light valves, projection display, windows and the like.
The invention has the beneficial effects that: according to the invention, one transparent plastic film layer is adopted, polymer dispersed liquid crystal can be coated on the transparent plastic film layer firstly, then the polymer dispersed liquid crystal is bonded in batches, and the two ITO layers are folded;
In addition, the transparent plastic film layer is coated on the processing table, so that the ITO layer is free of loss, later-period cleaning is not needed, and after the coating is finished, the transparent plastic film layer is directly bonded on the ITO layer, so that the working efficiency is greatly improved;
and the transparent plastic film layer can be torn off at the later stage, the ITO layer and the ITO glass are recovered, and the polymer dispersed liquid crystal can be reused after being coated with new polymer dispersed liquid crystal, so that the economic cost is reduced, and the recovery is convenient.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. the utility model provides a polymer dispersed liquid crystal glass, includes ITO glass (1), lower ITO glass (2), goes up ITO layer (4) and ITO layer (5) down, goes up ITO glass (1) and sets up in the top on last ITO layer (4), goes up ITO layer (4) and ITO layer (5) contact down, and lower ITO glass (2) set up in the bottom on lower ITO layer (5), its characterized in that: the transparent plastic film layer is characterized by further comprising a transparent plastic film layer (6), one layer of polymer dispersed liquid crystal (3) is smeared on one side face of the transparent plastic film layer, the other end of the transparent plastic film layer (6) is fixedly bonded on the upper ITO layer (4) and the lower ITO layer (5), and the upper ITO layer (4) and the lower ITO layer (5) are in up-down butt joint along the middle of the transparent plastic film layer (6).
2. the polymer dispersed liquid crystal glass of claim 1, wherein: one end of the transparent plastic film layer (6) is provided with transparent glue which is respectively bonded and fixed with the upper ITO glass (1) and the lower ITO glass (2).
3. the polymer dispersed liquid crystal glass of claim 1, wherein: the transparent plastic film layer (6) adopts a polyethylene terephthalate substrate.
4. The polymer dispersed liquid crystal glass of claim 1, wherein: and a gasket is also arranged between the upper ITO layer (4) and the lower ITO layer (5), and is mixed between the folded transparent plastic film layers (6).
5. the polymer dispersed liquid crystal glass of claim 1, wherein: the flexible circuit board FPC is bound below the upper ITO glass (4) through the upper anisotropic conductive adhesive tape ACF, and the flexible circuit board FPC is bound below the right upper side of the lower ITO glass (2) through the lower anisotropic conductive adhesive tape ACF.
6. the preparation method of the polymer dispersed liquid crystal glass is characterized by comprising the following steps:
preparing a transparent plastic film layer, wherein the length of the transparent plastic film layer is equal to the butt joint length of the upper ITO glass and the lower ITO glass, and a folding line needs to be formed in the middle of the transparent plastic film layer in a folding mode;
secondly, coating polymer dispersed liquid crystal on the transparent plastic film layer by using external coating equipment or manpower to uniformly coat the polymer dispersed liquid crystal on the transparent plastic film layer;
thirdly, the upper ITO layer and the lower ITO layer are placed in a side-by-side butt joint mode, then the transparent plastic film layer coated with the polymer dispersed liquid crystal is flatly laid on the upper end faces of the upper ITO layer and the lower ITO layer, and the other end of the transparent plastic film layer is fixedly bonded with the upper ITO layer and the lower ITO layer;
step four, placing a liner on the transparent plastic film layer;
Fifthly, folding the upper ITO layer and the lower ITO layer along a folding line to enable the polymer dispersed liquid crystal to be folded and contacted;
Step six, attaching the coated upper ITO layer and the coated lower ITO layer through alignment MARK, and curing the upper ITO layer and the lower ITO layer for 80 seconds through UV light intensity of 30mw/cm 2;
Step seven, binding FPCA at the lower glass pin end of the liquid crystal box formed after curing through an anisotropic conductive adhesive tape ACF CP 9620F; and bonding the FPC B at the upper glass pin end of the liquid crystal box formed after curing through an anisotropic conductive adhesive tape ACF CP 9620F.
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| CN201910812664.0A CN110543044A (en) | 2019-08-30 | 2019-08-30 | polymer dispersed liquid crystal glass and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910812664.0A CN110543044A (en) | 2019-08-30 | 2019-08-30 | polymer dispersed liquid crystal glass and preparation method thereof |
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| US5608555A (en) * | 1992-09-30 | 1997-03-04 | Sharp Kabushiki Kaisha | Polymer dispersed liquid crystal display device, and a method for producing the same, wherein the polymer forms walls |
| CN101419358A (en) * | 2007-10-24 | 2009-04-29 | 比亚迪股份有限公司 | Polymers dispersed liquid crystal light valve and method for making same |
| CN101900908A (en) * | 2009-05-27 | 2010-12-01 | 比亚迪股份有限公司 | Energy-saving dimming glass |
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Application publication date: 20191206 |