CN117908307A - Liquid crystal optical sheet - Google Patents
Liquid crystal optical sheet Download PDFInfo
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- CN117908307A CN117908307A CN202211237748.4A CN202211237748A CN117908307A CN 117908307 A CN117908307 A CN 117908307A CN 202211237748 A CN202211237748 A CN 202211237748A CN 117908307 A CN117908307 A CN 117908307A
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- conductive layer
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 62
- 230000003287 optical effect Effects 0.000 title claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims description 7
- 238000002834 transmittance Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000012780 transparent material Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012994 photoredox catalyst Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000010345 tape casting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The present application discloses a liquid crystal optical sheet, comprising: the first bearing substrate comprises a first surface and a second surface which is oppositely arranged; the first transparent conductive layer is arranged on the second surface of the first bearing substrate; the first insulating structure is graphically arranged on the surface of the first transparent conducting layer; the second bearing substrate comprises a first surface and a second surface which is oppositely arranged; the second transparent conductive layer is arranged on the second surface of the second bearing substrate; and the liquid crystal structure is positioned between the first transparent conductive layer and the second transparent conductive layer. The application uses insulating material to pattern the surface of the first transparent conductive film and/or the second transparent conductive film, thus the liquid crystal area can deflect after the transparent conductive film is electrified, and the purpose of area control is achieved.
Description
Technical Field
The application relates to the technical field of liquid crystals, in particular to a liquid crystal optical sheet.
Background
With the development of technology, windows in the fields of construction, automobiles and the like have a color-changing function, namely, the incidence of light rays can be effectively controlled by a manual control mode, a photochromic mode and the like, and the transmittance of window glass is controlled.
In the prior art, there is also an electrochromic mode for controlling the transmission and reflection of light, and the electrochromic is provided with an electrochromic material between two electrodes, and then voltage is applied to the two electrodes, so that the electrochromic material is changed to be transmitted or not transmitted, thereby achieving the effect of color change.
Another dimming mode in the prior art comprises a first conductive layer and a second conductive layer which is arranged oppositely, wherein a liquid crystal material is encapsulated between the first conductive layer and the second conductive layer; the first conductive layer and the second conductive layer are electrified to control the deflection of liquid crystal so as to achieve the aim of dimming, but the deflection can only be the deflection of all liquid crystal materials and can not locally control the deflection of the liquid crystal materials, and when the local light transmission is needed, the structure can not achieve the aim; it is therefore desirable to provide a liquid crystal optical sheet to solve the technical problem.
Disclosure of Invention
Based on this, it is necessary to provide a liquid crystal optical sheet to solve the above-mentioned technical problems.
The technical scheme of the application is as follows:
a liquid crystal optical sheet, comprising:
the first bearing substrate comprises a first surface and a second surface which is oppositely arranged;
The first transparent conductive layer is arranged on the second surface of the first bearing substrate;
the first insulating structure is graphically arranged on the surface of the first transparent conducting layer;
The second bearing substrate comprises a first surface and a second surface which is oppositely arranged;
The second transparent conductive layer is arranged on the second surface of the second bearing substrate;
And the liquid crystal structure is positioned between the first transparent conductive layer and the second transparent conductive layer, wherein the first transparent conductive layer and the second transparent conductive layer face the liquid crystal structure.
In one embodiment, the display device further includes a second insulating structure, the second insulating structure is patterned on the surface of the second transparent conductive layer, and the first insulating structure is disposed opposite to the second insulating structure.
In one embodiment, the transmittance of the first insulating structure and the second insulating structure is not less than 60%.
In one embodiment, the first insulating structure and the second insulating structure are grids or wire grids, wherein when the first insulating structure and the second insulating structure are grids, the grids are random grids.
In one embodiment, the first insulating structure and the second insulating structure are circular grids and/or elliptical grids, and the circular grids and/or elliptical grids are arranged according to a preset rule.
In one embodiment, the preset regular arrangement is a regular triangle, square or regular polygon arrangement, or is arranged in a random manner.
In one embodiment, the circular grids are different in size or the oval grids are different in size, and the preset rule arrangement is that the circular grids and/or the oval grids are arranged in a connected mode.
In one embodiment, the first insulating structure and the second insulating structure are grid and hollow, and the first transparent conductive layer and the second transparent conductive layer are located in hollow areas and directly contact with the liquid crystal structure.
In one embodiment, the first insulating structure and the second insulating structure are the same structure; or the first insulation structure and the second insulation structure are different structures.
In one embodiment, when the first insulating structure and the second insulating structure are the same structure, the maximum deviation between the projection of the first insulating structure on the plane of the second insulating structure and the second insulating structure is not more than 5 micrometers.
The application has the beneficial effects that: the liquid crystal optical sheet provided by the application is characterized in that the surface of the first transparent conductive film and/or the second transparent conductive film is patterned, and the patterning is formed by arranging an insulating material on the surface of the first transparent conductive film and/or the second transparent conductive film, so that the transparent conductive film is patterned in an artificial way, and the liquid crystal area can be deflected after the transparent conductive film is electrified, so that the purpose of area control is achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of a liquid crystal optical sheet according to the present application;
FIG. 2 is a schematic cross-sectional view of a liquid crystal optical sheet according to the present application;
FIG. 3 is a schematic diagram of a conductive structure of a liquid crystal optical sheet according to the present application;
FIG. 4 is a schematic diagram showing the structure of an insulating structure of a liquid crystal optical sheet according to the present application;
FIG. 5 is another schematic diagram of an insulating structure pattern of a liquid crystal optical sheet according to the present application;
FIG. 6 is another schematic diagram of an insulating structure pattern of a liquid crystal optical sheet according to the present application;
fig. 7 is another schematic diagram of an insulating structure pattern of a liquid crystal optical sheet according to the present application.
Detailed Description
In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the application. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The liquid crystal optical sheet can be used on automobile doors and windows and also can be used in buildings, and is mainly used in places where light rays need to be controlled, and whether the light rays pass through is realized by controlling deflection of liquid crystals; the liquid crystal optical sheet includes:
The first bearing substrate comprises a first surface and a second surface which is oppositely arranged; the first bearing substrate can be PET, PC, PMMA, glass and other transparent materials, and the first bearing substrate can also be a composite board formed by superposing a plurality of materials;
The first transparent conductive layer is arranged on the second surface of the first bearing substrate; the first transparent conductive film covers the second surface of the first bearing substrate, and is formed by coating, magnetron sputtering, ink-jet printing, doctor blading and other modes, and the first transparent conductive layer can be formed by ITO, PEDOT and other transparent conductive materials;
The first insulating structure is graphically arranged on the surface of the first transparent conducting layer; the first insulating structure is formed on the surface of the first transparent conducting layer in a photoetching, screen printing and ink-jet printing mode, and the first insulating structure can be formed by polymer materials such as photoresist, UV (ultraviolet) glue and the like; the first insulating structure is arranged on the first transparent conducting layer in a patterning way, so that the condition that the whole surface of the first transparent conducting layer is conducting is changed into regional conduction, the first transparent conducting layer is shielded by the first insulating structure, and the shielded first transparent conducting layer is non-conductive to the outside because the conducting material is shielded, and the first transparent conducting layer which is not shielded is still conductive;
The second bearing substrate comprises a first surface and a second surface which is oppositely arranged; the material used by the second bearing substrate can be the same as that of the first bearing substrate, for example, the second bearing substrate can be PET, PC, PMMA, glass and other transparent materials, and the second bearing substrate can also be a composite board formed by superposing a plurality of materials;
The second transparent conductive layer is arranged on the second surface of the second bearing substrate; the second transparent conductive film covers the second surface of the second bearing substrate, and is formed by coating, magnetron sputtering, ink-jet printing, doctor blading and other modes, and the second transparent conductive layer can be formed by ITO, PEDOT and other transparent conductive materials;
The liquid crystal structure is positioned between the first transparent conductive layer and the second transparent conductive layer, and is encapsulated between the first transparent conductive layer and the second transparent conductive layer; wherein the first transparent conductive layer and the second transparent conductive layer face the liquid crystal structure; the interaction of the first transparent conductive layer with the second transparent conductive layer may control the deflection of the liquid crystal structure.
In one embodiment, the display device further includes a second insulating structure, the second insulating structure is patterned on the surface of the second transparent conductive layer, and the first insulating structure is disposed opposite to the second insulating structure; like this the second transparent conducting layer is equipped with the second insulation structure, like first transparent conducting layer, form conductive area and insulating area on second transparent conducting layer surface, like this first transparent conducting layer with the second transparent conducting layer is through the conductive area interact down that first, second insulation structure formed for liquid crystal structure, because the conductive area that forms through first, second insulation structure, the conductive area that sets up relatively forms the electric field and can make liquid crystal structure deflect, will form the printing opacity region like this. For example, in one embodiment, the first insulating structure and the second insulating structure are grids and hollow, the first transparent conductive layer and the second transparent conductive layer are located in hollow areas and directly contact with the liquid crystal structure, the hollow areas are the conductive areas, the conductive areas are directly contact with the liquid crystal structure, and other conductive areas are also in contact with the liquid crystal structure.
In one embodiment, the transmittance of the first insulating structure and the second insulating structure is not less than 60%; the first insulating structure and the second insulating structure are made of transparent materials, and in order to ensure that the transparent materials forming the first insulating structure and the second insulating structure are not visible to the insulating structure, the transmittance of the transparent materials forming the first insulating structure and the second insulating structure is required to be higher, for example, the transmittance of the first insulating structure and the second insulating structure is not less than 85%. In one embodiment, the first insulating structure and the second insulating structure are grids or wire grids, wherein when the first insulating structure and the second insulating structure are grids, the grids are random grids, and when both the first insulating structure and the second insulating structure adopt random grids, moire fringes generated between the two insulating structures are less or can be eliminated, so that an observer can be more clear visually.
In one embodiment, the first insulating structure and the second insulating structure are circular grids and/or elliptical grids, and the circular grids and/or elliptical grids are arranged according to a preset rule. In one embodiment, the preset regular arrangement is regular triangle, square or regular polygon arrangement, or is arranged in a random manner, so that when the first insulating structure and the second insulating structure formed in this manner are irradiated by light, no speckles and halos appear, and the visual effect is better. In one embodiment, the circular grids are different in size or the oval grids are different in size, and the preset rule arrangement is that the circular grids and/or the oval grids are arranged in a connected mode, but limited arrangement modes are listed here, and the circular grids and/or the oval grids can be arranged in other modes.
In one embodiment, the first insulating structure and the second insulating structure are the same structure, for example, when the first insulating structure and the second insulating structure are random grids, the random grids of the two insulating structures are identical; or the first insulating structure and the second insulating structure are different structures, for example, the first insulating structure is a regular grid (regular hexagon), and the second insulating structure is a random grid, so that the first insulating structure and the second insulating structure are oppositely arranged.
In one embodiment, when the first insulating structure and the second insulating structure are the same structure, the maximum deviation of the first insulating structure between the projection of the second insulating structure plane and the second insulating structure is not more than 5 micrometers; the first insulating structure and the second insulating structure are aligned, for example, when the first insulating structure and the second insulating structure are arranged opposite to each other, the same grids are also arranged opposite to each other, and taking one of the oppositely arranged grids as an example, the grids of the first insulating structure and the grids of the second insulating structure are preferably completely overlapped in projection, which means that the two insulating structures are completely aligned, and furthermore, the grids of the first insulating structure and the grids of the second insulating structure are not completely overlapped in projection on the same plane, and when the projection deviation of the two grids is not greater than 5 micrometers.
Referring to fig. 1, a liquid crystal optical sheet includes a first conductive structure, a second conductive structure, a first insulating structure 30, and a liquid crystal structure 40; the first conductive structure comprises a first carrier substrate 10 and a first transparent conductive layer 20, the second conductive structure comprises a second carrier substrate 11 and a second transparent conductive layer 21, and the first transparent conductive layer 20 is opposite to the second transparent conductive layer 21; the first insulating structure 30 is disposed on the surface of the first transparent conductive layer 20, and the first insulating structure 30 has a hollowed-out structure, so that the first transparent conductive layer 20 has a bare conductive area; the liquid crystal structure 40 is encapsulated between the first transparent conductive layer 20 and the second transparent conductive layer 21, and the liquid crystal structure 40 is in direct contact with the exposed conductive area of the first transparent conductive layer 20 and also in contact with the second transparent conductive layer 21; thus, the deflection of the liquid crystal structure 40 can be controlled between the exposed conductive area of the first transparent conductive layer 20 and the second transparent conductive layer 21 to form light transmission.
Referring to fig. 2, a liquid crystal optical sheet includes a first conductive structure, a second conductive structure, a first insulating structure 30, a second insulating structure 31, and a liquid crystal structure 40, where the first conductive structure includes a first carrier substrate 10 and a first transparent conductive layer 20, the second conductive structure includes a second carrier substrate 11 and a second transparent conductive layer 21, and the first transparent conductive layer 20 and the second transparent conductive layer 21 are disposed opposite to each other; the first insulating structure 30 is disposed on the surface of the first transparent conductive layer 20, and the first insulating structure 30 has a hollowed-out structure, so that the first transparent conductive layer 20 has a bare conductive area; the second insulating structure 31 is disposed on the surface of the second transparent conductive layer 21, and the second insulating structure 31 has a hollow structure, so that the second transparent conductive layer 21 has a bare conductive area, and thus the liquid crystal structure 40 disposed between the first transparent conductive layer 20 and the second transparent conductive layer 21 can control the deflection of the liquid crystal structure 40 through the bare conductive area of the first transparent conductive layer 20 and the bare conductive area of the second transparent conductive layer 21.
Referring to fig. 3, a first conductive structure in a liquid crystal optical sheet includes a first carrier substrate 10, a first transparent conductive layer 20 and a first insulating structure 30, where the first carrier substrate 10 includes a first surface and a second surface disposed opposite to the first surface, the first transparent conductive layer 20 is disposed on the second surface of the first carrier substrate, the first insulating structure 30 is disposed on the surface of the first transparent conductive layer 20, the first insulating structure 30 is in a grid shape, the height of grid lines forming the grid of the first insulating structure 30 is H, the width is W, the height H is 1-80 μm, the width W is 1-50 μm, and the grid period range is 0.02-10mm.
Referring to fig. 4 to 7, the mesh shape of the first insulating structure 30 may be various shapes, as shown in fig. 4, the mesh of the first insulating structure 30 is square, the square is a square rotated by 45 °, and the square is easier to eliminate moire; as shown in fig. 5, the first insulating structure 30 is a strip-shaped gate line, and the gate line is spaced, i.e. the conductive areas and the insulating structures are alternately arranged in sequence; as shown in fig. 6, the first insulating structure 30 is a circular grid, the circular grids are arranged according to a honeycomb shape, and the sizes of the circular grids are identical, however, the sizes of the circular grids may be different, or two or more circular grids may be used; as shown in fig. 7, the first insulating structure 30 is an elliptical grid of at least two sizes, the elliptical grids of the two sizes are arranged against each other, and of course, the elliptical grids may have the same size.
The liquid crystal optical sheet provided by the application is characterized in that the surface of the first transparent conductive film and/or the second transparent conductive film is patterned, and the patterning is formed by arranging an insulating material on the surface of the first transparent conductive film and/or the second transparent conductive film, so that the transparent conductive film is patterned in an artificial way, and the liquid crystal area can be deflected after the transparent conductive film is electrified, so that the purpose of area control is achieved.
The foregoing embodiments of the application are explained in detail with reference to the accompanying drawings so that the above objects, features and advantages of the application can be more clearly understood. In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The application may be embodied in many other forms than described above and similar modifications may be made by those skilled in the art without departing from the spirit of the application, and it is therefore not to be limited to the specific embodiments disclosed above. In addition, the technical features of the above-described embodiments may be combined arbitrarily, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description of the present specification.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. A liquid crystal optical sheet, comprising:
the first bearing substrate comprises a first surface and a second surface which is oppositely arranged;
The first transparent conductive layer is arranged on the second surface of the first bearing substrate;
the first insulating structure is graphically arranged on the surface of the first transparent conducting layer;
The second bearing substrate comprises a first surface and a second surface which is oppositely arranged;
The second transparent conductive layer is arranged on the second surface of the second bearing substrate;
And the liquid crystal structure is positioned between the first transparent conductive layer and the second transparent conductive layer, wherein the first transparent conductive layer and the second transparent conductive layer face the liquid crystal structure.
2. The liquid crystal optical sheet of claim 1, further comprising a second insulating structure, wherein the second insulating structure is patterned on the surface of the second transparent conductive layer, and the first insulating structure is disposed opposite to the second insulating structure.
3. A liquid crystal optical sheet according to claim 2, wherein the transmittance of the first insulating structure and the second insulating structure is not less than 60%.
4. A liquid crystal optical sheet according to claim 2, wherein the first and second insulating structures are grids or wire grids, wherein when the first and second insulating structures are grids, the grids are random grids.
5. A liquid crystal optical sheet according to claim 2, wherein the first insulating structure and the second insulating structure are circular grids and/or elliptical grids, and the circular grids and/or elliptical grids are arranged according to a predetermined rule.
6. A liquid crystal optical sheet according to claim 5, wherein the predetermined regular arrangement is a regular triangle, square or regular polygon arrangement, or is arranged in a random manner.
7. A liquid crystal optical sheet according to claim 5, wherein the circular meshes are different in size or the elliptical meshes are different in size, and the predetermined regular arrangement is that the circular meshes and/or the elliptical meshes are arranged in succession.
8. The liquid crystal optical sheet according to claim 4 or 5, wherein the first insulating structure and the second insulating structure are grid-shaped and hollowed-out, and the first transparent conductive layer and the second transparent conductive layer are located in hollowed-out areas and are directly contacted with the liquid crystal structure.
9. A liquid crystal optical sheet according to claim 2, wherein the first insulating structure and the second insulating structure are the same structure; or the first insulation structure and the second insulation structure are different structures.
10. A liquid crystal optical sheet according to claim 9, wherein when the first insulating structure and the second insulating structure are the same structure, the maximum deviation between the projection of the first insulating structure on the plane of the second insulating structure and the second insulating structure is not more than 5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211237748.4A CN117908307A (en) | 2022-10-11 | 2022-10-11 | Liquid crystal optical sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211237748.4A CN117908307A (en) | 2022-10-11 | 2022-10-11 | Liquid crystal optical sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117908307A true CN117908307A (en) | 2024-04-19 |
Family
ID=90695108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211237748.4A Pending CN117908307A (en) | 2022-10-11 | 2022-10-11 | Liquid crystal optical sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117908307A (en) |
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2022
- 2022-10-11 CN CN202211237748.4A patent/CN117908307A/en active Pending
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