CN117908289A - PDLC dimming film electrode manufacturing device and method and dimming film manufacturing method - Google Patents
PDLC dimming film electrode manufacturing device and method and dimming film manufacturing method Download PDFInfo
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- CN117908289A CN117908289A CN202410309679.6A CN202410309679A CN117908289A CN 117908289 A CN117908289 A CN 117908289A CN 202410309679 A CN202410309679 A CN 202410309679A CN 117908289 A CN117908289 A CN 117908289A
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- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 title claims abstract description 112
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000005192 partition Methods 0.000 claims description 95
- 238000007650 screen-printing Methods 0.000 claims description 75
- 239000002002 slurry Substances 0.000 claims description 56
- 238000007639 printing Methods 0.000 claims description 32
- 238000007790 scraping Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 14
- 239000004973 liquid crystal related substance Substances 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000007581 slurry coating method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002003 electrode paste Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/44—Squeegees or doctors
- B41F15/46—Squeegees or doctors with two or more operative parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/12—Screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/50—Screen printing machines for particular purposes
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Dispersion Chemistry (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
The invention belongs to the technical field of PDLC dimming films, and particularly relates to a device and a method for manufacturing a PDLC dimming film electrode and a method for manufacturing a dimming film. The device comprises: the first scraper and the second scraper are arranged in parallel, the length L1 of the first scraper is larger than the length L2 of the second scraper, the first scraper prints the first edge of the L-shaped electrode which is parallel to the first scraper, the length L1 of the first scraper is not smaller than the length L3 of the first edge, the second scraper prints the second edge of the L-shaped electrode which is perpendicular to the second scraper, and the length L2 of the second scraper is not smaller than the width W1 of the second edge; the first ink returning knife and the second ink returning knife are matched with the first scraper to print the first edge, and the second ink returning knife and the second scraper are matched with the second edge to print the second edge; a first partial screen plate covering the region to be printed on the first side, and a second partial screen plate covering the region to be printed on the second side. When the electrode is manufactured, the uniformity of the thickness of the electrode can be improved, and the coating of conductive paste on unnecessary areas is reduced.
Description
Technical Field
The invention belongs to the technical field of PDLC dimming films, and particularly relates to a device and a method for manufacturing a PDLC dimming film electrode and a method for manufacturing a dimming film.
Background
The PDLC (polymer dispersed liquid crystal) dimming film has transparent film when being electrified and vaporific film when not being electrified, can be used for laminated dimming glass, back-attached liquid crystal film for projection and the like, can conveniently protect privacy while keeping the permeability of space, and has wide application.
The PDLC dimming film specifically comprises a first base material, a first conductive layer, a first electrode, a polymer dispersed liquid crystal layer, a second electrode, a second conductive layer and a second base material, wherein an external power supply is used for electrifying the first electrode and the second electrode, the first electrode and the second electrode respectively supply power for the first conductive layer and the second conductive layer, and the first conductive layer and the second conductive layer supply power for the polymer dispersed liquid crystal layer. The PDLC dimming film includes a zonal dimming film and a non-zonal dimming film, wherein the non-zonal dimming film has a first electrode and a second electrode, and the zonal dimming film includes a collinear electrode and a zonal electrode.
The method for preparing the electrode of the non-subarea PDLC dimming film and the collinear electrode of the subarea PDLC dimming film in the prior art is a brushing method, the method for preparing the subarea electrode of the subarea PDLC dimming film is to fully coat conductive paste on the area where the subarea electrode is to be arranged, and cut and subarea the electrode along an inner engraving line of the electrode area by using laser equipment after baking and solidifying.
However, when the PDLC dimming film electrode is prepared by adopting a brush coating method in the prior art, the uniformity of the thickness of the electrode is poor.
Disclosure of Invention
The invention aims to overcome the defect of poor uniformity of electrode thickness when a PDLC dimming film electrode is prepared, and provides a device and a method for manufacturing the PDLC dimming film electrode and a method for manufacturing the dimming film, which can improve the uniformity of electrode thickness when the dimming film electrode is manufactured.
In order to achieve the above object, in a first aspect, the present invention provides a device for manufacturing a PDLC dimming film electrode, including:
the scraper comprises a first scraper and a second scraper, wherein the length L1 of the first scraper is larger than the length L2 of the second scraper, and the first scraper and the second scraper are arranged in parallel; the first scraper prints a first edge of the L-shaped electrode, the first edge is parallel to the first scraper, and the length L1 of the first scraper is not less than the length L3 of the first edge; the second scraper prints a second edge of the L-shaped electrode, the second edge is perpendicular to the second scraper, and the length L2 of the second scraper is not smaller than the width W1 of the second edge;
The ink returning knife comprises a first ink returning knife and a second ink returning knife, the ink returning direction of the first ink returning knife is opposite to the direction of scraping the slurry by the first scraper, the ink returning direction of the second ink returning knife is opposite to the direction of scraping the slurry by the second scraper, the length L4 of the first ink returning knife is matched with the length L1 of the first scraper, the first ink returning knife is matched with the first scraper to print the first edge, the length L5 of the second ink returning knife is matched with the length L2 of the second scraper, and the second ink returning knife is matched with the second scraper to print the second edge;
A first partial screen plate covering a region to be printed of the first side;
and a second partial screen plate covering the area to be printed of the second side.
In some preferred embodiments, the ratio of the length L1 of the first scraper to the length L2 of the second scraper is 10-50.
In some preferred embodiments, the manufacturing apparatus further includes a third partial screen plate covering a region to be printed of the straight-type partition electrode of the partition PDLC dimming film;
The straight partition electrode is parallel to the first scraper, and the length L1 of the first scraper is not smaller than the length L6 of the straight partition electrode; or, the straight partition electrode is perpendicular to the second scraper, and the length L2 of the second scraper is not smaller than the width W2 of the straight partition electrode.
In a second aspect, the present invention provides a method for manufacturing a PDLC dimming film electrode, which adopts the manufacturing device in the first aspect, including:
Covering a region to be printed on a first side of an L-shaped electrode of a PDLC dimming film by a first local screen printing plate, wherein the first side is parallel to a first scraper, covering slurry on the first local screen printing plate, enabling the first scraper to be positioned on the first local screen printing plate, moving the first scraper from one side to the other side along the width direction of the first local screen printing plate, applying preset pressure to the slurry, enabling a first ink return knife to be positioned on the first local screen printing plate, enabling the first ink return knife to move along a direction opposite to the moving direction of the first scraper, pushing the slurry pushed to the other side by the first scraper back, and printing to obtain the first side;
And enabling a second local screen printing plate to cover a region to be printed of a second side of the L-shaped electrode of the PDLC dimming film, enabling the second side to be perpendicular to a second scraper, enabling slurry to cover the second local screen printing plate, enabling the second scraper to be positioned on the second local screen printing plate, moving the second scraper from one end to the other end along the length direction of the second local screen printing plate, applying preset pressure to the slurry, enabling a second ink return knife to be positioned on the second local screen printing plate, enabling the second ink return knife to move along the direction opposite to the moving direction of the second scraper, pushing the slurry pushed to the other end by the second scraper back, and printing to obtain the second side.
In some preferred embodiments, a third partial screen plate is used to cover the area to be printed of the straight type partition electrode of the partition PDLC dimming film, the straight type partition electrode is parallel to the first doctor blade, slurry is used to cover the third partial screen plate, the first doctor blade is used to be positioned on the third partial screen plate, the first doctor blade is used to be moved from side to side along the width direction of the third partial screen plate, preset pressure is applied to the slurry, the first ink return blade is used to be positioned on the third partial screen plate, the first ink return blade is used to be moved along the direction opposite to the moving direction of the first doctor blade, the slurry pushed to the other side by the first doctor blade is pushed back, and the straight type partition electrode is obtained through printing.
In some preferred embodiments, a third partial screen plate is used for covering the area to be printed of the straight type partition electrode of the partition PDLC dimming film, the straight type partition electrode is perpendicular to the second scraper, slurry is used for covering the third partial screen plate, the second scraper is positioned on the third partial screen plate, the second scraper is moved from one end to the other end along the length direction of the third partial screen plate, preset pressure is applied to the slurry, the second ink return knife is positioned on the third partial screen plate, the second ink return knife is moved in the direction opposite to the second scraper, and the slurry pushed to the other end by the second scraper is pushed back, so that the straight type partition electrode is obtained through printing.
In some preferred embodiments, a side of the first edge of the L-shaped electrode near the half-cut of the PDLC dimming film is spaced apart from the half-cut by a first distance, and when the first distance is not greater than 3mm, the direction in which the first doctor blade scrapes the slurry is a direction from the half-cut to the first edge.
In some preferred embodiments, the distance between the side of the first edge and/or the second edge of the L-shaped electrode, which is close to the half-cut position of the PDLC dimming film, and the half-cut position is a second distance, and when the second distance is not greater than 5mm, the first doctor and/or the second doctor is pressed down to enable the first partial screen plate and/or the second partial screen plate to be in contact with the PDLC film, and then the first doctor and/or the second doctor is continuously pressed down.
Preferably, when the hardness of the first scraper and/or the second scraper is HS75 to HS80, the first scraper and/or the second scraper is pressed down to make the first local screen printing plate and/or the second local screen printing plate contact with the PDLC film, and then the first scraper and/or the second scraper is continuously pressed down for 5mm to 10mm.
In a third aspect, the present invention provides a method for manufacturing a PDLC dimming film, including preparing a PDLC dimming film electrode on a conductive layer by using the method for manufacturing a PDLC dimming film electrode described in the second aspect.
The device for manufacturing the light-adjusting film electrode comprises a first scraper, a second scraper, a first ink return knife, a second ink return knife, a first local screen printing plate and a second local screen printing plate, wherein the length L1 of the first scraper is larger than the length L2 of the second scraper, the length L1 of the first scraper is not smaller than the length L3 of the first edge of the L-shaped electrode, the length L2 of the second scraper is not smaller than the width W1 of the second edge of the L-shaped electrode, the first scraper and the second scraper are arranged in parallel, the ink return direction of the first ink return knife is opposite to the direction of the first scraper for scraping the slurry, the ink return direction of the second ink return knife is opposite to the direction of the second scraper for scraping the slurry, the length L4 of the first ink return knife is matched with the length L1 of the first scraper, the length L5 of the second ink return knife is matched with the length L2 of the second scraper, when the first local screen printing plate covers the area to be printed on the first side of the L-shaped electrode, the first scraper moves from one side to the other side along the width direction of the screen printing plate, the first scraper with long length scrapes slurry in a short distance, the first ink returning knife moves in the direction opposite to the moving direction of the first scraper, the first scraper is pushed back to push the slurry on the other side, the first side of the L-shaped electrode parallel to the first scraper can be rapidly printed, when the second local screen printing plate covers the area to be printed on the second side of the L-shaped electrode, the second scraper moves from one end to the other end along the length direction of the screen printing plate, the second scraper with short length scrapes slurry in a long distance, the second ink returning knife moves in the direction opposite to the moving direction of the second scraper, the slurry pushed back from the second scraper to the other end can be rapidly printed on the second side of the L-shaped electrode perpendicular to the second scraper. The first local screen printing plate covers the region to be printed on the first side of the L-shaped electrode, the second local screen printing plate covers the region to be printed on the second side of the L-shaped electrode, the first scraper, the first ink return knife, the second scraper and the second ink return knife are respectively matched to move, the L-shaped electrode can be printed by adopting a screen printing method, the uniformity of the thickness of the electrode is improved, the first side and the second side of the L-shaped electrode which are perpendicular to each other can be respectively printed, the rapid printing of the L-shaped electrode is realized, the whole diaphragm region of a PDLC dimming film is not required to be fully coated with slurry for the rapid printing of the L-shaped electrode, the slurry coating region can be reduced, the conductive slurry is prevented from being coated in an unnecessary region, and the waste of the conductive slurry is greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the electrode distribution of the undivided PDLC dimming film of the present invention.
Fig. 2 is a schematic diagram of the electrode distribution of the segmented PDLC dimming film of the present invention.
Fig. 3 is a first schematic view of the doctor blade and ink return blade arrangement of the invention.
Fig. 4 is a second schematic view of the doctor blade and ink return blade arrangement of the invention.
Description of the reference numerals
1. A first electrode; 2. a second electrode; 3. a partition electrode; 4. collinear electrodes; 401. a first side of the collinear electrode; 402. a second side of the collinear electrode; 5. a first scraper; 6. a first ink return knife; 7. a second scraper; 8. a second ink return knife; 9. a straight type partition electrode.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
In this document, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally to refer to the orientation shown in the drawings and in the practice, and "inner" and "outer" are intended to refer to the interior and exterior of the outline of the component.
In the description of the present invention, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
The inventor of the invention researches and discovers that when a PDLC dimming membrane electrode is prepared by adopting a brush coating method in the prior art, the uniformity of the thickness of the electrode is poor, and when a partition electrode is prepared by adopting a method of full coating and then cutting, the area of a slurry coating area is large, and more unnecessary areas are coated by conductive slurry.
In view of the above, in a first aspect, the present invention provides a device for manufacturing a PDLC dimming film electrode, including:
the scraper comprises a first scraper and a second scraper, wherein the length L1 of the first scraper is larger than the length L2 of the second scraper, and the first scraper and the second scraper are arranged in parallel; the first scraper prints a first edge of the L-shaped electrode, the first edge is parallel to the first scraper, and the length L1 of the first scraper is not less than the length L3 of the first edge; the second scraper prints a second edge of the L-shaped electrode, the second edge is perpendicular to the second scraper, and the length L2 of the second scraper is not smaller than the width W1 of the second edge;
The ink returning knife comprises a first ink returning knife and a second ink returning knife, the ink returning direction of the first ink returning knife is opposite to the direction of scraping the slurry by the first scraper, the ink returning direction of the second ink returning knife is opposite to the direction of scraping the slurry by the second scraper, the length L4 of the first ink returning knife is matched with the length L1 of the first scraper, the first ink returning knife is matched with the first scraper to print the first edge, the length L5 of the second ink returning knife is matched with the length L2 of the second scraper, and the second ink returning knife is matched with the second scraper to print the second edge;
A first partial screen plate covering a region to be printed of the first side;
and a second partial screen plate covering the area to be printed of the second side.
The PDLC light adjusting film of the present invention may be a non-segmented PDLC light adjusting film, a segmented PDLC light adjusting film, or the like. The non-partition PDLC dimming film comprises a first base material, a first conductive layer, a liquid crystal layer, a second conductive layer and a second base material which are sequentially laminated, and a first electrode and a second electrode which are arranged on two sides of a laminated body, wherein the first electrode and the second electrode are arranged in a mode of cutting off the edge parts of the second base material, the second conductive layer and the liquid crystal layer to expose the first conductive layer, the first electrode is arranged on the surface of the first conductive layer, the edge parts of the first base material, the first conductive layer and the liquid crystal layer are cut off to expose the second conductive layer, the second electrode is arranged on the surface of the second conductive layer, and the first electrode and the second electrode are respectively positioned on the front surface and the back surface of the laminated body. Electrode distribution of non-partitioned PDLC dimming film referring to fig. 1, a first electrode 1 includes a first side and a second side perpendicular to each other, forming an L-shaped electrode, and a second electrode 2 includes a first side and a second side perpendicular to each other, forming an L-shaped electrode. The partition PDLC dimming film comprises a first base material, a first conductive layer, a liquid crystal layer, a second conductive layer and a second base material which are sequentially laminated, partition electrodes and collinear electrodes, wherein the partition electrodes and the collinear electrodes are arranged on two sides of a laminated body, the partition electrodes are arranged in a mode of cutting off edge parts of the first base material, the first conductive layer and the liquid crystal layer to expose the second conductive layer, partition electrodes are arranged on the surface of the second conductive layer, cutting off edge parts of the second base material, the second conductive layer and the liquid crystal layer to expose the first conductive layer, and the collinear electrodes are arranged on the surface of the first conductive layer and are respectively positioned on the front side and the back side of the laminated body. Electrode distribution of the segmented PDLC dimming film referring to fig. 2, the collinear electrode 4 includes a first side and a second side perpendicular to each other to form an L-shaped electrode, and a limited number of segmented electrodes 3 are disposed along a straight line as a whole to form a straight-shaped segmented electrode parallel to one side of the collinear electrode 4.
The L-shaped electrode of the present invention may be, for example, the first electrode and the second electrode of the aforementioned undivided PDLC dimming film or a collinear electrode of the divided PDLC dimming film.
The manufacturing device of the PDLC dimming membrane electrode comprises a first scraper 5, a first ink return cutter 6, a second scraper 7 and a second ink return cutter 8, wherein the first scraper 5 and the second scraper 7 are arranged in parallel, the ink return direction of the first ink return cutter 6 is opposite to the direction of scraping slurry by the first scraper 5, the ink return direction of the second ink return cutter 8 is opposite to the direction of scraping slurry by the second scraper 7, the length L1 of the first scraper 5 is larger than the length L2 of the second scraper 7, the length L4 of the first ink return cutter 6 is matched with the length L1 of the first scraper 5, the length L5 of the second ink return cutter 8 is matched with the length L2 of the second scraper 7, the length L1 of the first scraper 5 is not smaller than the length L3 of a first edge of an L-shaped electrode, and the length L2 of the second scraper 7 is not smaller than the width W1 of a second edge of the L-shaped electrode. In the arrangement modes of the first doctor blade 5, the first ink return blade 6, the second doctor blade 7 and the second ink return blade 8 referring to fig. 3 and 4, in fig. 3 and 4, the first doctor blade 5, the first ink return blade 6, the second doctor blade 7 and the second ink return blade 8 are arranged in parallel with each other and are all arranged in the vertical direction, the doctor blade directions of the first doctor blade 5 and the second doctor blade 7 are parallel, the horizontal direction is the opposite direction of the doctor blade of the first doctor blade 5, the horizontal direction is also the opposite direction of the doctor blade of the first ink return blade 6, the ink return direction of the second ink return blade 8 is also the horizontal direction, the length L1 of the first doctor blade 5 is larger than the length L2 of the second doctor blade 7, the length L4 of the first ink return blade 6 is matched with the length L1 of the first doctor blade 5, the L2 of the second doctor blade 8 is respectively shown in fig. 3 and 4 to be in the horizontal direction, the first side of the first electrode is parallel to the first side of the first electrode, the first side of the first electrode is smaller than the first side of the first electrode is parallel to the first side of the first electrode 402, and the first side of the first electrode is not parallel to the first side of the first electrode 402 is parallel to the first side of the first electrode is parallel to the first side of the first electrode 401.
The device for manufacturing the PDLC dimming film electrode of the present invention further comprises a first partial screen plate and a second screen plate, when the PDLC dimming film electrode is manufactured, referring to fig. 3 and 4, the first partial screen plate covers a region to be printed of a first side 401 of the collinear electrode, electrode paste is covered on the first partial screen plate, the first doctor blade 5 is positioned on the first partial screen plate, and moves along the width direction of the first partial screen plate from one side to the other side, the first ink return blade 6 moves along the direction opposite to the moving direction of the first doctor blade 5, the paste of the first doctor blade 5 is pushed back to the other side, the first doctor blade 5 with a long length is scraped for a short distance, the electrode paste can be rapidly printed on a first side 401 of the collinear electrode parallel to the first doctor blade 5, the second partial screen plate covers a region to be printed of a second side 402 of the collinear electrode, the second doctor blade 7 is positioned on the second partial screen plate, and moves along the length direction of the second partial screen plate, the second doctor blade 7 moves from one end to the other end, the second doctor blade 7 moves back along the direction opposite to the moving direction of the second doctor blade 7, and the length of the second doctor blade 7 can be pushed back to the second doctor blade 7 with a long distance. The first local screen printing plate covers the region to be printed on the first side of the L-shaped electrode, the second local screen printing plate covers the region to be printed on the second side of the L-shaped electrode, the first scraper, the first ink return knife, the second scraper and the second ink return knife are respectively matched to move, the L-shaped electrode can be printed by adopting a screen printing method, the uniformity of the thickness of the electrode can be improved, the first side and the second side of the L-shaped electrode which are perpendicular to each other can be respectively printed, the rapid printing of the L-shaped electrode is realized, the whole diaphragm region of the PDLC dimming film is not required to be fully coated with the slurry for the rapid printing of the L-shaped electrode, the slurry coating region can be reduced, the coating of the conductive slurry in an unnecessary region is avoided, the waste of the conductive slurry is reduced, the rapid volatilization of the solvent of the slurry in the non-printing region is avoided, the slurry drying affects the screen printing process, the minimum conductive slurry covering the screen required in the printing process is reduced, the problem that the conductive slurry is fixedly contained in the printing process, the conductive slurry is increased in the printing process is caused, the blocking of the screen is caused, and the production cost is reduced. The first partial screen plate covers the region to be printed of the first side 401 of the collinear electrode, and the width direction of the first partial screen plate is parallel to the width direction of the first side. The second partial screen plate covers the area to be printed of the second side 402 of the collinear electrode, and the length direction of the second partial screen plate is parallel to the length direction of the second side.
According to the invention, the first local screen printing plate covers the area to be printed on the first side of the L-shaped electrode, the second local screen printing plate covers the area to be printed on the second side of the L-shaped electrode, compared with the screen printing plate which covers the whole diaphragm area of the PDLC dimming film, the paste covers the area to be printed on the first side of the L-shaped electrode and the area to be printed on the second side of the L-shaped electrode.
The invention does not limit the specific setting directions of the first scraper, the second scraper, the first ink returning knife and the second ink returning knife, and does not limit the specific orientations of the first edge and the second edge, and only limits the first edge to be parallel to the first scraper and the second edge to be perpendicular to the second scraper. Preferably, referring to fig. 3, the longer side of the L-shaped electrode is the first side, which facilitates rapid printing of the L-shaped electrode.
It is understood that the first doctor blade, the second doctor blade, the first ink-returning blade and the second ink-returning blade can independently control lifting and dropping.
In some preferred embodiments, the ratio of the length L1 of the first scraper to the length L2 of the second scraper is 10-50. Under the preferred scheme, the L-shaped electrode with the ratio of the length L3 of the first side to the width W1 of the second side of the L-shaped electrode being 50-10 can be printed, and the L-shaped electrode with the length L3 of the first side being far greater than the width W1 of the second side can be printed more conveniently.
In some preferred embodiments, the manufacturing apparatus further includes a third partial screen plate covering a region to be printed of the straight-type partition electrode of the partition PDLC dimming film; the straight partition electrode is parallel to the first scraper, and the length L1 of the first scraper is not smaller than the length L6 of the straight partition electrode; or, the straight partition electrode is perpendicular to the second scraper, and the length L2 of the second scraper is not smaller than the width W2 of the straight partition electrode. In this preferred embodiment, the manufacturing apparatus of the present invention further includes a third partial screen plate, the length L1 of the first doctor blade is not less than the length L6 of the straight type partition electrode, referring to fig. 3, the straight type partition electrode 9 is shown in fig. 3, the straight type partition electrode 9 is parallel to the first doctor blade 5, the length L1 of the first doctor blade 5 is not less than the length L6 of the straight type partition electrode 9 perpendicular to the direction of the paste, when the PDLC dimming film electrode is manufactured, the third partial screen plate covers the area to be printed of the straight type partition electrode 9, the electronic paste is covered on the third partial screen plate, the first doctor blade 5 is located on the third partial screen plate, the first ink return knife 6 moves from one side to the other side along the width direction of the third partial screen plate, the first paste return knife 6 pushes back the paste from the first doctor blade 5 to the other side along the direction opposite to the direction of the movement of the first doctor blade 5, and the first doctor blade 5 having a short length can rapidly print the straight type partition electrode 9 parallel to the first doctor blade 5. The third partial screen plate covers the region to be printed of the straight-type divided electrode 9, and the width direction of the third partial screen plate is parallel to the width direction of the straight-type divided electrode 9. In this preferred embodiment, the partition electrode of the present invention may be printed by a second doctor blade, the length L2 of the second doctor blade is not less than the width W2 of the straight partition electrode, referring to fig. 4, in which the straight partition electrode 9 is shown in fig. 4, the straight partition electrode 9 is perpendicular to the first doctor blade 5 and the second doctor blade 7, parallel to the direction of the paste scraping, the length L2 of the second doctor blade 7 is not less than the width W2 of the straight partition electrode 9, when the PDLC dimming film electrode is manufactured, the third partial screen plate covers the area to be printed of the straight partition electrode 9, the electronic paste is covered on the third partial screen plate, the second doctor blade 7 is located on the third partial screen plate, the second ink returning knife 8 is moved from one end to the other end along the length direction of the third partial screen plate, the paste is pushed back to the other end of the second doctor blade 7, and the second doctor blade 7 having a short length scrapes the paste, so that the straight partition electrode 9 perpendicular to the second doctor blade 7 can be printed rapidly. The third partial screen plate covers the region to be printed of the straight-type divided electrode 9, and the length direction of the third partial screen plate is parallel to the length direction of the straight-type divided electrode 9.
Referring to fig. 3 and 4, the present invention can rapidly print the partition electrode and the collinear electrode of the partitioned PDLC dimming film by moving the first doctor blade 5, the first ink return blade 6, and the second doctor blade 7 and the second ink return blade 8 in cooperation, respectively, by covering the region to be printed of the first side 401 of the collinear electrode with the first partial screen plate, covering the region to be printed of the second side 402 of the collinear electrode with the second partial screen plate, and covering the region to be printed of the straight partition electrode 9 with the third partial screen plate. In order to rapidly print the partition electrode and the collinear electrode of the partition PDLC dimming film, the whole diaphragm area of the partition PDLC dimming film is not required to be fully coated with the paste, the paste coating area can be reduced, and the conductive paste is prevented from being coated in an unnecessary area. The partition electrode is manufactured in a screen printing mode, compared with the method that the area to be provided with the partition electrode is fully coated with the conductive paste and baked and solidified, the method uses the laser equipment to cut the electrode into the partition along the inner engraving line of the electrode area, so that the paste coating area can be reduced, the conductive paste is prevented from being coated in an unnecessary area, the working procedure and energy consumption are saved, and the production efficiency is improved.
Under the preferred scheme, referring to fig. 3, the straight type partition electrode is parallel to the first scraper, the first edge of the L-shaped collinear electrode is parallel to the first scraper, when the length L1 of the first scraper is not smaller than the lengths of the first edges of the straight type partition electrode and the L-shaped collinear electrode, the first scraper with long length scrapes the slurry at a short distance, the first edges of the straight type partition electrode and the L-shaped collinear electrode which are parallel to the first scraper are printed rapidly, the second scraper with short length scrapes the slurry at a long distance, and the second edge of the L-shaped collinear electrode is printed rapidly, so that the partition electrode and the collinear electrode of the PDLC partition dimming film are printed rapidly more conveniently.
It can be understood that the manufacturing device of the invention further comprises a silk-screen platform for bearing the PDLC membrane, preferably, the flatness of the silk-screen platform is less than 0.1mm, which is more beneficial to giving flat support to the PDLC membrane and avoiding local printing.
It can be understood that the height of the screen printing plate is adjustable, and the distance between the diaphragm and the screen printing plate is adjusted according to PDLC diaphragms with different structures, so that the conditions of sticking a net or missing printing and the like are avoided.
In a second aspect, the present invention provides a method for manufacturing a PDLC dimming film electrode, using the manufacturing apparatus of the first aspect, referring to fig. 3 and 4, to cover a first edge of an L-shaped electrode of a PDLC dimming film with a first partial screen plate, the first edge being parallel to a first doctor blade, to cover slurry on the first partial screen plate, to locate the first doctor blade on the first partial screen plate, to move from one side to the other side along a width direction of the first partial screen plate, and to apply a preset pressure to the slurry, to locate a first ink return blade on the first partial screen plate, to move the first ink return blade in a direction opposite to a moving direction of the first doctor blade, to push the slurry pushed by the first doctor blade to the other side back, and to print the first edge;
And enabling a second local screen printing plate to cover a region to be printed of a second side of the L-shaped electrode of the PDLC dimming film, enabling the second side to be perpendicular to a second scraper, enabling slurry to cover the second local screen printing plate, enabling the second scraper to be positioned on the second local screen printing plate, moving the second scraper from one end to the other end along the length direction of the second local screen printing plate, applying preset pressure to the slurry, enabling a second ink return knife to be positioned on the second local screen printing plate, enabling the second ink return knife to move along the direction opposite to the moving direction of the second scraper, pushing the slurry pushed to the other end by the second scraper back, and printing to obtain the second side.
According to the method, the first local screen printing plate covers the region to be printed on the first side of the L-shaped electrode, the second local screen printing plate covers the region to be printed on the second side of the L-shaped electrode, the first scraper, the first ink return knife, the second scraper and the second ink return knife are respectively matched to move, the L-shaped electrode can be printed by adopting a screen printing method, the uniformity of the thickness of the electrode can be improved, the first side and the second side of the L-shaped electrode which are perpendicular to each other can be respectively printed, the L-shaped electrode can be rapidly printed, the whole diaphragm region of a PDLC dimming film does not need to be fully coated with slurry for rapidly printing the L-shaped electrode, the slurry coating region can be reduced, and the conductive slurry is prevented from being coated in an unnecessary region.
The two electrodes are respectively arranged on two sides of the laminated body, edge parts of the second base material, the second conductive layer and the liquid crystal layer are cut off to expose the first conductive layer, one electrode is arranged on the surface of the first conductive layer, edge parts of the first base material, the first conductive layer and the liquid crystal layer are cut off to expose the second conductive layer, the other electrode is arranged on the surface of the second conductive layer, a half-cut step is formed in the process of cutting off the base material, the conductive layer and the liquid crystal layer, and the position of the half-cut step is a half-cut position. The thickness of the base material, the conductive layer and the liquid crystal layer is very thin, the first local screen printing plate of the invention preferably covers the region to be printed and the peripheral region of the first side of the L-shaped electrode of the PDLC dimming film, the first local screen printing plate is lapped on the half-cut step, the second local screen printing plate preferably covers the region to be printed and the peripheral region of the second side of the L-shaped electrode of the PDLC dimming film, and the second local screen printing plate is lapped on the half-cut step.
In some preferred embodiments, a distance between a side of the first side of the L-shaped electrode, which is close to the half-cut portion of the PDLC dimming film, and the half-cut portion is a first distance, and when the first distance is not greater than 3mm, a direction in which the first doctor blade scrapes the paste is a direction from the half-cut portion to the first side, which is more favorable for preventing printing of the side of the first side of the L-shaped electrode, which is close to the half-cut portion of the PDLC dimming film, from being unclear.
In some preferred embodiments, the distance between the half-cut side of the first edge of the L-shaped electrode, which is close to the half-cut side of the PDLC dimming film, and the half-cut side of the PDLC dimming film is a second distance, and when the second distance is not greater than 5mm, and when the first edge of the L-shaped electrode is printed by the first doctor, the first doctor is pressed down to enable the first local screen plate to be in contact with the PDLC film, and then the first doctor is continuously pressed down, so that the screen plate is more attached to the half-cut side, thereby being more beneficial to preventing the first edge of the L-shaped electrode from being in leakage printing at the side close to the half-cut side; the distance between one side of the second side of the L-shaped electrode, which is close to the half-cut part of the PDLC dimming film, and the half-cut part is a second distance, when the second distance is not more than 5mm, the second scraper is used for printing the second side of the L-shaped electrode, and after the second scraper is pressed down to enable the second local screen printing plate to be in contact with the PDLC film, the second scraper is continuously pressed down, the screen printing plate is more attached to the half-cut part, and the prevention of the leakage printing of one side of the second side of the L-shaped electrode, which is close to the half-cut part, is facilitated. Preferably, when the hardness of the first scraper and/or the second scraper is 75-80, the first scraper and/or the second scraper is pressed down to enable the first local screen printing plate and/or the second local screen printing plate to be in contact with the PDLC film, and then the first scraper and/or the second scraper is continuously pressed down for 5-10 mm. Wherein the hardness is Shore hardness.
In some preferred embodiments, a third partial screen plate is made to cover the area to be printed of the straight type partition electrode of the partition PDLC dimming film, the straight type partition electrode is parallel to the first doctor blade, paste is made to cover the third partial screen plate, the first doctor blade is made to be located on the third partial screen plate, the paste is made to move from side to side along the width direction of the third partial screen plate, a preset pressure is applied to the paste, the first ink return blade is made to be located on the third partial screen plate, the first ink return blade is made to move in the direction opposite to the moving direction of the first doctor blade, the paste pushed to the other side by the first doctor blade is pushed back, and the straight type partition electrode is obtained through printing. Under this preferred scheme, first scraper and first ink return sword cooperation motion, the first limit and the subregion electrode of the L type collineation electrode of partition PDLC dimming film can be printed fast, the second edge of the L type collineation electrode of partition PDLC dimming film can be printed fast to second scraper and the cooperation motion of second ink return sword, in order to print the collineation electrode and the subregion electrode of partition PDLC dimming film, need not to fully scribble the whole diaphragm region of partition PDLC dimming film with thick liquids, can reduce thick liquids coating region, avoid the conductive paste of coating in unnecessary region.
Preferably, when the distance between the side of the straight partition electrode, which is close to the half-cut position of the PDLC dimming film, and the half-cut position is not more than 3mm, the direction of the first scraper scraping the paste is the direction from the half-cut position to the straight partition electrode, which is more beneficial to preventing the printing of the side of the straight partition electrode, which is close to the half-cut position of the PDLC dimming film, from being unclear. Preferably, when the distance between one side of the straight-type partition electrode, which is close to the half-cut position of the PDLC dimming film, and the half-cut position is not more than 5mm, the first scraper presses down to enable the third local screen plate to be in contact with the PDLC membrane when the first scraper prints the straight-type partition electrode, and then the first scraper continues to press down, so that the screen plate is more attached to the half-cut position, and the prevention of the screen printing of one side of the straight-type partition electrode, which is close to the half-cut position, is facilitated. Further preferably, when the hardness of the first scraper is 75-80, after the first scraper is pressed down to enable the third local screen printing plate to be in contact with the PDLC membrane, the first scraper is continuously pressed down for 5-10 mm, the screen printing plate is more attached to the half-cut part, and the prevention of the screen printing at one side of the straight partition electrode, which is close to the half-cut part, is facilitated. Wherein the hardness is Shore hardness.
In some preferred embodiments, a third partial screen plate is used to cover the area to be printed of the straight type partition electrode of the partition PDLC dimming film, the straight type partition electrode is perpendicular to the second scraper, the paste is used to cover the third partial screen plate, the second scraper is located on the third partial screen plate, the paste is moved from one end to the other end along the length direction of the third partial screen plate, a preset pressure is applied to the paste, the second ink return knife is located on the third partial screen plate, the second ink return knife is moved in the direction opposite to the moving direction of the second scraper, the paste pushed to the other end by the second scraper is pushed back, and the straight type partition electrode is obtained through printing. Under this preferred scheme, first scraper and first ink return sword cooperation motion, the first limit of the L type collineation electrode of regional PDLC dimming film can be printed fast, the second limit and the regional electrode of the L type collineation electrode of regional PDLC dimming film can be printed fast to the cooperation motion of second scraper and second ink return sword, in order to print the L type collineation electrode and the regional electrode of regional PDLC dimming film, need not to fully scribble the whole diaphragm region of regional PDLC dimming film with thick liquids, can reduce thick liquids coating region, avoid the conductive paste of coating in unnecessary region.
Preferably, when the distance between one side of the straight-type partition electrode, which is close to the half-cut position of the PDLC dimming film, and the half-cut position is not more than 5mm, and when the second scraper prints the straight-type partition electrode, the second scraper presses down to enable the third local screen printing plate to be in contact with the PDLC membrane, and then the second scraper continuously presses down, so that the screen printing plate is more attached to the half-cut position, and the prevention of the screen printing plate from being leaked on one side of the straight-type partition electrode, which is close to the half-cut position, is facilitated. Further preferably, when the hardness of the second scraper is 75-80, after the second scraper is pressed down to enable the third local screen printing plate to be in contact with the PDLC membrane, the second scraper is continuously pressed down for 5-10 mm, the screen printing plate is more attached to the half-cut part, and the prevention of the screen printing at one side of the straight partition electrode, which is close to the half-cut part, is facilitated. Wherein the hardness is Shore hardness.
The invention can adjust the mesh number of the first partial screen printing plate, the second partial screen printing plate and the third partial screen printing plate according to the form of the conductive particles in the electronic paste. The screen printing plate consists of a screen and photoresist, and the photoresist thickness of the meshes of the non-blanking area of the screen printing plate and the solid content of the electronic paste can be adjusted according to the thickness of the printing electrode.
In the process of printing the partition electrode, the partition electrode is accurately printed in the design area of the partition electrode by utilizing the automatic alignment function of the printing equipment and matching with targets on the PDLC membrane and the third screen printing plate, and the partition electrode of the partition PDLC membrane is more beneficial to avoiding the contact between the electrode and the inner engraving line after printing and the two-area or multi-area communication state.
In a third aspect, the present invention provides a method for manufacturing a PDLC dimming film, where the method for manufacturing a PDLC dimming film electrode according to the second aspect is used to manufacture a PDLC dimming film electrode on a conductive layer.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (10)
1. The device for manufacturing the PDLC dimming membrane electrode is characterized by comprising the following components:
the scraper comprises a first scraper and a second scraper, wherein the length L1 of the first scraper is larger than the length L2 of the second scraper, and the first scraper and the second scraper are arranged in parallel; the first scraper prints a first edge of the L-shaped electrode, the first edge is parallel to the first scraper, and the length L1 of the first scraper is not less than the length L3 of the first edge; the second scraper prints a second edge of the L-shaped electrode, the second edge is perpendicular to the second scraper, and the length L2 of the second scraper is not smaller than the width W1 of the second edge;
The ink returning knife comprises a first ink returning knife and a second ink returning knife, the ink returning direction of the first ink returning knife is opposite to the direction of scraping the slurry by the first scraper, the ink returning direction of the second ink returning knife is opposite to the direction of scraping the slurry by the second scraper, the length L4 of the first ink returning knife is matched with the length L1 of the first scraper, the first ink returning knife is matched with the first scraper to print the first edge, the length L5 of the second ink returning knife is matched with the length L2 of the second scraper, and the second ink returning knife is matched with the second scraper to print the second edge;
A first partial screen plate covering a region to be printed of the first side;
and a second partial screen plate covering the area to be printed of the second side.
2. The manufacturing device according to claim 1, wherein a ratio of the length L1 of the first scraper to the length L2 of the second scraper is 10-50.
3. The manufacturing apparatus according to claim 1, further comprising a third partial screen plate covering a region to be printed of the straight-type partition electrode of the partition PDLC dimming film;
The straight partition electrode is parallel to the first scraper, and the length L1 of the first scraper is not smaller than the length L6 of the straight partition electrode; or, the straight partition electrode is perpendicular to the second scraper, and the length L2 of the second scraper is not smaller than the width W2 of the straight partition electrode.
4. A method for manufacturing a PDLC light modulation film electrode, which adopts the manufacturing device of any one of claims 1-3, comprising:
Covering a region to be printed on a first side of an L-shaped electrode of a PDLC dimming film by a first local screen printing plate, wherein the first side is parallel to a first scraper, covering slurry on the first local screen printing plate, enabling the first scraper to be positioned on the first local screen printing plate, moving the first scraper from one side to the other side along the width direction of the first local screen printing plate, applying preset pressure to the slurry, enabling a first ink return knife to be positioned on the first local screen printing plate, enabling the first ink return knife to move along a direction opposite to the moving direction of the first scraper, pushing the slurry pushed to the other side by the first scraper back, and printing to obtain the first side;
And enabling a second local screen printing plate to cover a region to be printed of a second side of the L-shaped electrode of the PDLC dimming film, enabling the second side to be perpendicular to a second scraper, enabling slurry to cover the second local screen printing plate, enabling the second scraper to be positioned on the second local screen printing plate, moving the second scraper from one end to the other end along the length direction of the second local screen printing plate, applying preset pressure to the slurry, enabling a second ink return knife to be positioned on the second local screen printing plate, enabling the second ink return knife to move along the direction opposite to the moving direction of the second scraper, pushing the slurry pushed to the other end by the second scraper back, and printing to obtain the second side.
5. The method according to claim 4, wherein a third partial screen plate is placed over a region to be printed of a straight type partition electrode of the partitioned PDLC dimming film, the straight type partition electrode is parallel to the first blade, paste is placed over the third partial screen plate, the first blade is placed on the third partial screen plate, a predetermined pressure is applied to the paste from one side to the other side in a width direction of the third partial screen plate, a first ink return blade is placed on the third partial screen plate, the first ink return blade is moved in a direction opposite to a moving direction of the first blade, the paste pushed to the other side by the first blade is pushed back, and the straight type partition electrode is obtained by printing.
6. The method according to claim 4, wherein a third partial screen plate is arranged to cover a region to be printed of a straight type partition electrode of the partitioned PDLC dimming film, the straight type partition electrode is perpendicular to a second doctor blade, paste is arranged to cover the third partial screen plate, the second doctor blade is arranged on the third partial screen plate, the second doctor blade is arranged to move from one end to the other end along the length direction of the third partial screen plate, a preset pressure is applied to the paste, a second ink return knife is arranged on the third partial screen plate, the second ink return knife is arranged to move in a direction opposite to the second doctor blade, the paste pushed to the other end by the second doctor blade is pushed back, and the straight type partition electrode is obtained through printing.
7. The method of claim 4, wherein a distance between a side of the first side of the L-shaped electrode near the half-cut portion of the PDLC dimming film and the half-cut portion is a first distance, and the direction in which the first doctor blade scrapes the slurry is a direction from the half-cut portion to the first side when the first distance is not more than 3 mm.
8. The manufacturing method according to claim 4, wherein a distance between a half-cut side of the first side and/or the second side of the L-shaped electrode, which is close to the half-cut side of the PDLC dimming film, and the half-cut side is a second distance, and when the second distance is not greater than 5mm, the first doctor blade and/or the second doctor blade is pressed down to bring the first partial screen plate and/or the second partial screen plate into contact with the PDLC film, and then the first doctor blade and/or the second doctor blade is continuously pressed down.
9. The manufacturing method according to claim 8, wherein when the hardness of the first scraper and/or the second scraper is HS 75-HS 80, the first scraper and/or the second scraper is pressed down to make the first partial screen printing plate and/or the second partial screen printing plate contact with the PDLC film, and then the first scraper and/or the second scraper is continuously pressed down for 5 mm-10 mm.
10. A method for manufacturing a PDLC dimming film, which is characterized by comprising the step of preparing the PDLC dimming film electrode on a conductive layer by adopting the method for manufacturing the PDLC dimming film electrode according to any one of claims 4-9.
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| CN210970288U (en) * | 2019-09-24 | 2020-07-10 | 苏州迈为科技股份有限公司 | Battery piece screen printing device |
| JP2021020344A (en) * | 2019-07-25 | 2021-02-18 | トヨタ自動車株式会社 | Screen printing apparatus |
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| CN206653729U (en) * | 2017-03-23 | 2017-11-21 | 浙江爱旭太阳能科技有限公司 | A kind of solar cell silk screen printing machine |
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| CN110978756A (en) * | 2019-12-29 | 2020-04-10 | 苏州辰锦智能科技有限公司 | Double-scraper type screen printing assembly and screen printing machine |
| CN217259021U (en) * | 2022-04-22 | 2022-08-23 | 深圳市哈深智材科技有限公司 | Screen printing machine |
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