CN114609832A - Light modulation device - Google Patents
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- CN114609832A CN114609832A CN202011447886.6A CN202011447886A CN114609832A CN 114609832 A CN114609832 A CN 114609832A CN 202011447886 A CN202011447886 A CN 202011447886A CN 114609832 A CN114609832 A CN 114609832A
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a light modulation device which comprises a first transparent substrate and a second transparent substrate, wherein the first transparent substrate and the second transparent substrate are parallel and opposite to each other, and are clamped in an edge sealing structure arranged between the first transparent substrate and the second transparent substrate, the edge sealing structure, the first transparent substrate and the second transparent substrate form a space, a liquid light modulation layer is filled in the space, the edge sealing structure at least comprises an inner edge frame and an outer edge frame, the inner edge frame is a sealing structure, and the outer edge frame is a fixing structure which is not easy to deform. The light modulation device adopts a polygonal frame design mode, so that the structural strength of the light modulation device is improved, and the phenomenon that the edge part is abnormal due to the influence of edge stress and acting force on the device performance in the later deep processing and installation processes is avoided.
Description
Technical Field
The invention relates to the technical field of liquid crystal application, in particular to a light modulation device.
Background
The light adjusting device can realize the switching between the transparent state and the non-transparent state in various modes such as electric control, temperature control, light control and the like. Common dimming devices can be classified into solid component devices and liquid component devices according to the form of a material used. The solid-state component dimming device mainly adopts the PDLC dimming technology, but has the problems of large visual angle, low transmission, poor weather resistance and the like, and the application range of the solid-state component dimming device is limited. The liquid component dimming device mainly comprises a bistable dimming technology, a dye liquid crystal technology, an SPD technology and the like, the problems of the PDLC dimming technology do not exist, however, because the dimming layer is a pure liquid component, the device is more easily influenced by edge stress and external force in the later installation and the deep processing processes of laminated glass preparation, hollow glass preparation and the like, the thickness of the edge dimming layer is abnormal, and the use effect and the performance stability of the device are influenced.
Therefore, it is desirable to design a light modulation device to improve the structural strength of the light modulation device for solving the above problems.
Disclosure of Invention
The present invention is directed to a light modulation device, which solves the above problems in the prior art.
The invention adopts the following technical scheme:
the utility model provides a light-adjusting device, includes first transparent substrate 100 and second transparent substrate 200, first transparent substrate 100 with second transparent substrate 200 is parallel to each other and relative setting, presss from both sides and establishes first transparent substrate 100 with banding structure 400 between the second transparent substrate 200, banding structure 400 with first transparent substrate 100 second transparent substrate 200 forms a space, and liquid light modulation layer 500 fills in the space, banding structure 400 includes two sets of frames of interior frame and peripheral frame at least, and wherein, interior frame is seal structure 401, and peripheral frame is difficult fixed knot structure 402 of deformation.
Preferably, the sealing structure 401 and the fixing structure 402 are both sealant, or the sealing structure 401 is sealant and the fixing structure 402 is made of metal or nonmetal solid material.
Preferably, the width of the sealing structure 401 is 0.1-20 mm.
Preferably, a plurality of support structures 502 are also included within the seal structure 401.
Preferably, the fixing structure 402 is a continuous or discontinuous fixing frame.
Preferably, the width of the fixing structure 402 is 0.1-20 mm, and the distance between the fixing structure 402 and the sealing structure 401 is 0.1-20 mm.
Preferably, the shape of the fixing structure 402 includes any one or a combination of a dot shape, a line shape, and a wave shape.
Preferably, the liquid dimming layer 500 includes a liquid crystal composition of cholesteric liquid crystal, a dye liquid crystal composition, or an SPD composition.
Preferably, a plurality of support structures 502 for defining the thickness of the liquid dimming layer 500 are also included within the liquid dimming layer 500.
Preferably, the display device further includes a first transparent electrode 310 formed inside the first transparent substrate 100, and a second transparent electrode 320 formed inside the second transparent substrate 200.
Preferably, the liquid crystal display further includes a first alignment layer 601 formed inside the first transparent electrode 310.
Preferably, a second alignment layer 602 formed inside the second transparent electrode 320 is further included.
The dimming device adopts a polygonal frame design mode, the inner surrounding frame is a sealing structure and plays roles of sealing and supporting, the outer surrounding frame is a fixing structure which is not easy to deform and plays roles of supporting and/or sealing, the structural strength of the dimming device is improved, and the phenomenon that the edges are abnormal due to the influence of edge stress and acting force on the device performance in the later deep processing and installation processes is avoided.
Drawings
The invention may be better understood by reference to the following description of embodiments of the invention taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a dimming device according to a first embodiment of the present invention;
FIGS. 2 to 7 are schematic views of the edge sealing structure according to the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a dimming device according to a second embodiment of the present invention;
fig. 9 is a schematic structural diagram of a dimming device according to a third embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, it will be apparent to those skilled in the art that the present invention may be practiced without these specific details. The illustrated exemplary embodiments of the invention are provided for purposes of illustration only and are not intended to be limiting of the invention. Therefore, it is intended that the scope of the invention be limited not by this detailed description, but rather by the claims appended hereto.
The following describes the dimming device of the present invention in detail with reference to the accompanying drawings.
As described in the prior art, in the conventional light modulation device, since the light modulation layer is a pure liquid component, the device is more easily affected by edge stress and external force in the deep processing processes such as the later installation, the preparation of laminated glass, the preparation of hollow glass and the like, so that the thickness of the edge light modulation layer is abnormal, and the use effect and the performance stability of the device are affected.
In order to solve the above problems, the present invention provides a light modulation device, including a first transparent substrate 100 and a second transparent substrate 200, where the first transparent substrate 100 and the second transparent substrate 200 are parallel and opposite to each other, and an edge sealing structure 400 is sandwiched between the first transparent substrate 100 and the second transparent substrate 200, the edge sealing structure 400, the first transparent substrate 100 and the second transparent substrate 200 form a space, a liquid light modulation layer 500 is filled in the space, and the edge sealing structure 400 at least includes two sets of frames, namely an inner frame and an outer frame, where the inner frame is a sealing structure 401, and the outer frame is a fixing structure 402 that is not easily deformed.
In the embodiment of the present invention, the edge sealing structure 400 at least includes two sets of frame structures, which may be two, three or more sets, and adopts a plurality of sets of frame structures, so as to effectively enhance the structural strength of the light modulation device, and avoid the edge abnormal phenomenon caused by the influence of the edge stress and the acting force on the device performance in the later deep processing and installation processes.
In a preferred embodiment of the present invention, combining the cost and the structural strength of the light modulator, the edge sealing structure 400 includes two sets of frame structures: an inner frame and a peripheral frame. The inner frame is a sealing structure 401 for continuously sealing the dimming material between the first transparent substrate 100 and the second transparent substrate 200, and the width of the sealing structure 401 is 0.1-20 mm, so as to play a role in sealing and supporting. Peripheral frame plays support and/or sealed effect for difficult deformation's fixed knot structure 402 for promote the structural strength of adjusting luminance device, make the device edge of adjusting luminance have more excellent resistance to compression, shock resistance all around, improve overall structure intensity beyond, the defect or the harmfulness of adjusting luminance that the edge part atress produced when can also avoiding installing. The width of the fixed structure 402 is 0.1-20 mm, and there may be no space or a space between the sealing structure 401 and the fixed structure 402, preferably, there is a space between the sealing structure 401 and the fixed structure 402, and the space is 0.1-20 mm, so that stress can be released and the sealing structure and the liquid light modulation layer can be better protected.
Common sealing structures can be classified into: solvent-based adhesives, water-based adhesives, hot-melt adhesives, reactive adhesives, and the like. Wherein. The solvent-based adhesive comprises polyacrylate, chloroprene rubber, SBS and the like; the water-based adhesive comprises PVAc and copolymer emulsion, VAE emulsion, polyacrylate emulsion and the like; the hot melt adhesive includes EVA resins, synthetic rubbers, etc.; the reactive adhesive includes organic silica gel, acrylate glue, anaerobic glue, epoxy resin, polyurethane, composite glue, etc.
In a preferred embodiment of the present invention, the sealing structure 401 and the fixing structure 402 are both frame glue, and the material can be selected from a reactive adhesive, including a thermosetting epoxy resin glue, a light-curing acrylate glue, a UV heating mixed glue, and the like. In addition, a support structure 502 which plays a role of auxiliary support may be added to the sealing structure 401.
In another preferred embodiment of the present invention, the sealing structure 401 is a sealant, and the material is selected from a reactive adhesive, including a thermosetting epoxy resin adhesive, a light-curing acrylate adhesive, a UV heating mixed adhesive, and the like; the material of the fixing structure 402 is a metal or non-metal solid material, such as steel, iron, polystyrene, silicon dioxide, etc.
The fixing structure 402 of the present invention may be continuous or discontinuous, and the structure shape thereof includes any one or a combination of a point shape, a line shape and a wave shape, but is not limited to the above structure. In an embodiment of the present invention, as shown in fig. 2, the edge sealing structure 400 includes a continuous sealing structure 401 and a continuous fixing structure 402, a gap is formed between the sealing structure 401 and the fixing structure 402, and the fixing structure 402 is not easily deformed and has a certain rigidity, so as to improve the structural strength of the light modulation device and protect the liquid light modulation layer from the influence of edge stress and external force.
In another embodiment, as shown in fig. 3, the edge sealing structure 400 includes a continuous sealing structure 401 and a discontinuous fixing structure 402, the fixing structure 402 is shaped as a short line, and is distributed at the periphery of the sealing structure at equal intervals, and the fixing structure 402 is not easily deformed and has a certain rigidity, so that the structural strength of the light modulation device can be improved, and the liquid light modulation layer can be protected from the edge stress and the external force.
In yet another embodiment, as shown in fig. 4, the edge sealing structure 400 includes a continuous sealing structure 401 and intermittent fixing structures 402, the fixing structures 402 are circular dots in shape and are distributed at equal intervals on the periphery of the sealing structure, and the fixing structures 402 are not easily deformed and have certain rigidity.
As shown in fig. 5, the edge banding structure 400 may further include 3 sets of frame structures: the inner periphery is continuous sealing structure 401, the middle layer is a dotted structure, the periphery is continuous fixed structure 402, the middle layer and the outer fixed structure are not easy to deform, certain rigidity is achieved, and the structural strength of the light adjusting device can be improved.
As shown in fig. 6, the fixing structures 402 may also be linear structures arranged at equal intervals, and the lines of the fixing structures form an included angle with the sealing structure 401. In addition, the edge banding structure may also surround a continuous fixation structure around the slanted line structure as shown in fig. 7. Further, the structure of the fixing structure is not limited to the above structure as long as the liquid dimming layer can be protected from the edge stress and the external force.
The first embodiment:
fig. 1 is a schematic structural diagram of a dimming device according to a first embodiment of the present invention, including a first transparent substrate 100 and a second transparent substrate 200, where the first transparent substrate 100 and the second transparent substrate 200 are parallel and opposite to each other; a first transparent electrode 310 formed inside the first transparent substrate 100; a second transparent electrode 320 formed inside the second transparent substrate 200; a liquid dimming layer 500 disposed between the first transparent substrate 100 and the second transparent substrate 200; and an edge sealing structure 400 disposed between the first transparent substrate 100 and the second transparent substrate 200 for sealing the liquid light modulation layer 500.
In this embodiment, the first transparent substrate 100 and the second transparent substrate 200 are selected from one or more transparent polymer materials such as glass, PET, PEN, PC, PP, PMMA, PBT, PVC, PI, and cellulose, and the first transparent substrate 100 and the second transparent substrate 200 are used for supporting the respective film layers thereon and forming a flat external protection structure of the liquid crystal dimmer.
In this embodiment, the first transparent electrode 310 and the second transparent electrode 320 are disposed in a whole layer, and the first transparent electrode 310 and the second transparent electrode 320 are preferably made of ITO material, but not limited thereto, the first transparent electrode 310 and the second transparent electrode 320 may also be made of a carbon-based conductive film, a metal nanowire conductive film, a metal oxide film, and the like, wherein the carbon-based conductive film mainly includes two types of graphene oxide and carbon nanotubes, the metal nanowire conductive film commonly includes silver nanowires, copper nanowires, and the like, and the metal oxide film includes a mixture of indium tin oxide, indium oxide, tin oxide, zinc oxide, and other metal oxides.
In this embodiment, the liquid light modulation layer 500 includes a liquid component material 501 such as a cholesteric liquid crystal composition, a dye liquid crystal composition, or an SPD composition, and a support structure 502 uniformly dispersed inside the first transparent substrate 100 and the second transparent substrate 200. Wherein the support structure 502 is located between the first transparent substrate 100 and the second transparent substrate 200 for defining the thickness of the liquid dimming layer 500, the support structure 502 can be distributed anywhere between the first transparent substrate 100 and the second transparent substrate 200, including within the edge seal structure. The material of the support structure 502 includes resin, glass fiber, and inorganic materials such as polystyrene, silica, and the like. The support structure 502 may be spherical, rod-like, or otherwise shaped. The support structure 502 is sized according to the thickness of the liquid state dimmer layer. In this embodiment, the supporting structure 502 may also be replaced by other structures, which are not described in detail.
In this embodiment, the edge sealing structure 400 includes a sealing structure 401, which performs sealing and supporting functions; the mounting structure 402, acts as a support and/or seal and enhances the strength of the dimmer device. Wherein, a supporting structure 502 for auxiliary supporting is added in the sealing structure 401. The sealing structure 401 may be made of a reactive adhesive, including a thermosetting epoxy resin adhesive, a light-curing acrylate adhesive, a UV heating mixed adhesive, and the like. The fixed structure 402 is not easily deformed, has an effect of improving the structural strength of the light modulation device, and can be polystyrene, silicon dioxide and the like. The fixing structure 402 may be continuous or discontinuous, and the shape of the structure may be any one of fig. 2 to 7, but is not limited to the above structure.
Second embodiment:
fig. 8 is a schematic structural diagram of a light modulation device according to a second embodiment of the present invention, different from the first embodiment, in this embodiment, a first alignment layer 601 is formed on either side of a first transparent electrode 310 or a second transparent electrode 320, and the step of forming the first alignment layer 601 includes: obtaining an alignment agent solvent with a certain concentration, coating the alignment agent solution on the surface of the first transparent substrate 100, curing to form an alignment layer, and finally aligning the cured alignment layer. The orientation agent is generally an organic polymer material, such as PVB, siloxane, polyimide material, etc. The coating method includes spin coating, dipping, screen printing, spraying and slit coating. The types of the first alignment layer 601 include a substantially planar alignment type and a substantially vertical alignment type. The orientation mode includes rubbing orientation, photo-control orientation, inclined evaporation method orientation, LB film method orientation, etc., and will not be described again.
The third embodiment:
fig. 9 is a schematic diagram of a light modulation device according to a third embodiment of the present invention, different from the second embodiment, in this embodiment, a first alignment layer 601 and a second alignment layer 602 are formed inside a first transparent electrode 310 and a second transparent electrode 320, respectively, and the steps of forming the first alignment layer 601 and the second alignment layer 602 include: obtaining an alignment agent solvent with a certain concentration, coating the alignment agent solution on the surface of the first transparent substrate 100, curing to form an alignment layer, and finally aligning the cured alignment layer. The orientation agent is generally an organic polymer material, such as PVB, siloxane, polyimide material, etc. The coating method includes spin coating, dipping, screen printing, spraying and slit coating. Types of the first alignment layer 601 and the second alignment layer 602 include a substantially planar alignment type and a substantially homeotropic alignment type. The orientation mode includes rubbing orientation, photo-control orientation, inclined evaporation method orientation, LB film method orientation, etc., and will not be described in detail.
The dimming device adopts a polygonal frame design mode, the inner surrounding frame is a sealing structure and plays roles of sealing and supporting, the outer surrounding frame is a fixing structure which is not easy to deform and plays roles of supporting and/or sealing, the structural strength of the dimming device is improved, and the phenomenon that the edges are abnormal due to the influence of edge stress and acting force on the device performance in the later deep processing and installation processes is avoided.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a light-adjusting device, includes first transparent substrate (100) and second transparent substrate (200), first transparent substrate (100) with second transparent substrate (200) are parallel to each other and relative setting, press from both sides and establish first transparent substrate (100) with banding structure (400) between second transparent substrate (200), banding structure (400) with first transparent substrate (100), second transparent substrate (200) form a space, and liquid light modulation layer (500) are filled in the space, its characterized in that, banding structure (400) include two sets of frames of interior frame and peripheral frame at least, wherein, interior frame is seal structure (401), peripheral frame is difficult fixed knot structure (402) that warp.
2. The dimming device according to claim 1, wherein the sealing structure (401) and the fixing structure (402) are both sealant, or the sealing structure (401) is sealant and the fixing structure (402) is a metal or non-metal solid material.
3. The dimming device according to claim 1, wherein the sealing structure (401) has a width of 0.1 to 20 mm.
4. A dimmer device as claimed in claim 1, further comprising a plurality of support structures (502) within the sealing structure (401).
5. A dimmer device as claimed in claim 1, wherein the fixed structure (402) is a continuous or discontinuous fixed bezel.
6. A dimmer device as claimed in claim 1, wherein the width of the fixed structure (402) is 0.1-20 mm, preferably the spacing between the fixed structure (402) and the sealing structure (401) is 0.1-20 mm.
7. A dimming device as claimed in claim 1, wherein the shape of the fixed structure (402) comprises any one or a combination of a point, a line, a wave.
8. A dimming device as claimed in claim 1, further comprising a plurality of support structures (502) within the liquid dimming layer (500) for defining the thickness of the liquid dimming layer (500).
9. The dimming device according to claim 1, further comprising a first transparent electrode (310) formed inside the first transparent substrate (100), and a second transparent electrode (320) formed inside the second transparent substrate (200).
10. A dimming device according to claim 9, further comprising a first alignment layer (601) formed inside the first transparent electrode (310), preferably further comprising a second alignment layer (602) formed inside the second transparent electrode (320).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447886.6A CN114609832A (en) | 2020-12-09 | 2020-12-09 | Light modulation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447886.6A CN114609832A (en) | 2020-12-09 | 2020-12-09 | Light modulation device |
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| CN114609832A true CN114609832A (en) | 2022-06-10 |
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| CN202011447886.6A Pending CN114609832A (en) | 2020-12-09 | 2020-12-09 | Light modulation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118330946A (en) * | 2024-04-26 | 2024-07-12 | 苏州政道光电材料有限公司 | Suspended particle dimming device and preparation method and application thereof |
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| CN101533173A (en) * | 2008-03-12 | 2009-09-16 | 中华映管股份有限公司 | Liquid crystal display panel and method for manufacturing the same |
| US20190011739A1 (en) * | 2016-12-29 | 2019-01-10 | HKC Corporation Limited | Display panel and display apparatus |
| CN213581685U (en) * | 2020-12-09 | 2021-06-29 | 苏州百斯特玻科技有限公司 | Light modulation device |
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