CN211786487U - PDLC light modulation film - Google Patents
PDLC light modulation film Download PDFInfo
- Publication number
- CN211786487U CN211786487U CN202020378429.5U CN202020378429U CN211786487U CN 211786487 U CN211786487 U CN 211786487U CN 202020378429 U CN202020378429 U CN 202020378429U CN 211786487 U CN211786487 U CN 211786487U
- Authority
- CN
- China
- Prior art keywords
- electrode
- copper foil
- layer
- light modulation
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model provides a PDLC membrane of adjusting luminance, includes from last first stratum basale, first conducting layer, polymer liquid crystal layer, second conducting layer, second stratum basale and the membrane electrode of adjusting luminance of connecting the power down, its characterized in that, the membrane electrode of adjusting luminance is including connecting first electrode and the second electrode of first conducting layer and second conducting layer respectively, first electrode and second electrode include respectively: a film substrate; a copper foil attached to one surface of the film base; the conductive adhesive is arranged on the surface of the copper foil; a protective layer including a first protective layer covering a surface of the copper foil and a second protective layer covering a surface of the film base without the copper foil; and the lead is fixed on the tail end surface of the copper foil. The light adjusting film is provided with a durable and firm plug-in light adjusting film electrode, so that the cutting step of the light adjusting film when the electrode is manufactured on the existing light adjusting film is omitted, and the risk of short circuit is avoided.
Description
The technical field is as follows:
the utility model relates to a technical field that adjusts luminance especially relates to a PDLC membrane of adjusting luminance.
Background art:
polymer Dispersed Liquid Crystal (PDLC) is an emerging photoelectric material developed in the 70 th generation of the 20 th century, and is a research hotspot of researchers in recent decades. The polymer dispersed liquid crystal has the advantages of simple preparation process, quick response time, no need of a polarizing device and the like, and is gradually applied to various electronic elements such as light valves, gratings, light-transmitting projection screens, dimming glasses and the like. The light-adjusting glass is also called as an electronic curtain, and the working principle is as follows: when the power supply of the light adjusting glass is turned off, the liquid crystal molecules in the light adjusting glass are in an irregular dispersion state, light cannot be emitted at the moment, and the light adjusting glass is in an opaque state; when the power supply of the light adjusting glass is turned on, the liquid crystal molecules in the light adjusting glass are in a neat arrangement state, at the moment, light can freely penetrate through the light adjusting glass, and the light adjusting glass is in a light-transmitting state. Because of its dimming property, the dimming glass has been widely used in high-grade places such as office buildings, medical institutions, commercial displays, and the like.
Most of current PDLC light-adjusting membrane electrodes are copper mesh electrodes, such as CN 100380212C, and the specific manufacturing process is as follows: the method comprises the steps of cutting off a part of upper PET by laser, cleaning a dimming layer on the lower PET to expose a transparent conductive film on the lower PET, coating silver paste on the exposed transparent conductive film, pasting a copper strip on the upper side of the transparent conductive film, inserting a copper net between the copper strip and the silver paste to serve as a leading-out electrode, cutting off a part of the lower PET, cleaning the dimming layer on the upper PET to expose the transparent conductive film on the upper PET, coating the silver paste on the exposed transparent conductive film, pasting the copper strip on the upper side of the transparent conductive film, inserting a copper net between the copper strip and the silver paste to serve as a leading-out electrode, and using the copper net as a second-side electrode. Meanwhile, the copper mesh needs to be stained with solder to adhere leads for supplying power from an external power source. If the welding part is arranged in the laminated glass and the welding part protrudes, when the laminated glass is combined, local stress concentration is caused due to the local protrusion, the glass is easy to crack, and the welding part is arranged outside the laminated glass, so that the copper mesh is very fragile and easy to break under the action of external force.
The utility model has the following contents:
the utility model discloses to the above-mentioned technical problem that prior art exists, provide a PDLC membrane of adjusting luminance, need not to cut the PET of membrane of adjusting luminance, the installation procedure of simplifying the electrode and the tearing strength of electrode improve greatly.
The utility model adopts the technical proposal that:
the utility model provides a PDLC membrane of adjusting luminance, includes from last first stratum basale, first conducting layer, polymer liquid crystal layer, second conducting layer, second stratum basale and the membrane electrode of adjusting luminance of connecting the power down, its characterized in that, the membrane electrode of adjusting luminance is including connecting first electrode and the second electrode of first conducting layer and second conducting layer respectively, first electrode and second electrode include respectively:
a film substrate;
a copper foil attached to one surface of the film base;
the conductive adhesive is arranged on the surface of the copper foil;
a protective layer including a first protective layer covering a surface of the copper foil and a second protective layer covering a surface of the film base without the copper foil;
and the lead is fixed on the tail end surface of the copper foil.
In a possible implementation mode, the conductive adhesive of the first electrode is arranged on one side of the copper foil close to the first conductive layer, and the area, without the conductive adhesive and the lead, of the surface of the copper foil is covered by the first protective layer.
In a possible implementation manner, the conductive adhesive of the second electrode is disposed on a side of the copper foil close to the second conductive layer.
In a possible embodiment, the first electrode and the second electrode are L-shaped, and are arranged opposite to each other, so that the entire light modulation membrane electrode is T-shaped.
In a possible implementation mode, the first electrode and the second electrode are connected into a whole by the film substrate, and the whole comprises a bonding section positioned between the first conducting layer and the second conducting layer and a leading-out section perpendicular to the bonding section, and the width of the leading-out section is 15-30 mm.
In one possible embodiment, the thickness of the dimming film electrode is not more than 50% of the thickness of the PDLC dimming film.
In one possible embodiment, the film base material is PI or PET, and the protective layer material is PI.
In one possible embodiment, the conductive adhesive is a pressure sensitive adhesive or an anisotropic conductive adhesive.
In one possible embodiment, the lead is fixed to the end surface of the copper foil by soldering, and the solder used for soldering covers the lead and the end surface of the copper foil.
In one possible embodiment, the solder is surrounded by an insulating protective layer for protecting the junction of the lead and the end surface of the copper foil.
The utility model discloses owing to adopted above-mentioned technical scheme, it has following beneficial effect:
use the utility model discloses a during the membrane electrode of adjusting luminance, need not to cut the membrane stratum basale of adjusting luminance, the process has been reduced, the problem of short circuit has been link up to first conducting layer and the second conducting layer that leads to easily when also having avoided the cutting stratum basale, and simultaneously, because the structure of membrane electrode of adjusting luminance is outside protective layer, inside copper foil and the combination of film basement, its tear strength resistance is higher than the tear strength of simple copper net, it is difficult disconnected, when using membrane electrode preparation intermediate layer dimming glass of adjusting luminance, can set up the welding point outside glass, can avoid because the welding point sets up the glass lobe of a leaf risk that leads to when glass is inside.
Description of the drawings:
fig. 1 is a schematic view of a PDLC light modulation film according to the present invention;
fig. 2 is a cross-sectional view of the PDLC light-adjusting film with the electrode removed;
FIG. 3 is a cross-sectional view A-A' of FIG. 1;
fig. 4 is a sectional view of B-B' in fig. 1.
Description of reference numerals:
1. the liquid crystal display panel comprises a first base layer, 2, a first conducting layer, 3, a polymer dispersed liquid crystal layer, 4, a second conducting layer, 5, a second base layer, 6, a dimming film electrode, 61, a first electrode, 62, a second electrode, 7, a film base, 8a, a copper foil, 9a, conductive adhesive, 101, a first protective layer, 102, a second protective layer, 20, a lead, 30, solder, 100 and a dimming film.
The specific implementation mode is as follows:
to explain the technical content, the achieved objects and the effects of the present invention in detail, the present invention will be further explained with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the present invention, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are primarily intended to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation, and therefore should not be construed as limiting the invention.
As shown in fig. 1-2, the utility model provides a PDLC light modulation film, include from last first stratum basale 1, first conducting layer 2, polymer liquid crystal layer 3, second conducting layer 4, second stratum basale 5 and be used for connecting the light modulation film electrode 6 of power down, its characterized in that, light modulation film electrode 6 includes first electrode 61 and second electrode 62 of connecting first conducting layer 2 and second conducting layer 4 respectively, first electrode 61 and second electrode 62 have the structure of basic unanimity, include: a film substrate 7; a copper foil 8 attached to one surface of the film base 7; a conductive adhesive 9 provided on the surface of the copper foil 8; a first protective layer 101 covering the surface of the copper foil 8 and a second protective layer 102 covering the surface of the film base 7 without the copper foil 8; and a lead 20 fixed to the end surface of the copper foil 8. Use the utility model discloses a during membrane electrode of adjusting luminance, need not to cut membrane basal layer of adjusting luminance, reduced the process, first conducting layer 2 and the problem of second conducting layer 4 through short circuit that leads to easily when also having avoided cutting the basal layer, simultaneously, because membrane electrode 6 of adjusting luminance's structure is outside protective layer, inside copper foil 8 and the combination of film basement 7, its tear strength is higher than the tear strength of simple copper net, and is difficult disconnected.
The utility model provides a PDLC membrane of adjusting luminance is conventional membrane of adjusting luminance 100, enables membrane of adjusting luminance 100 after applying voltage through membrane electrode 6 of adjusting luminance and adjusts between bright state and dark state. As shown in fig. 2, in order to provide the light adjusting film electrode 6, the polymer dispersed liquid crystal 3 at one side edge of the light adjusting film 100 is partially removed, and then a part of the light adjusting film electrode 6 is plugged into the light adjusting film 100, so that the first electrode 61 and the second electrode 62 can respectively contact the first conductive layer 2 and the second conductive layer 4, and the external power supply can drive the light adjusting film to work through the light adjusting film electrode 6.
Shown in fig. 3-4 are cross-sectional views of the first electrode 61 and the second electrode 62, respectively, of the dimming film electrode 6. Among them, PI (polyimide) or PET (polyethylene terephthalate) is generally used as the film substrate 7, and is excellent in flexibility and stability.
In the first electrode 61, a laminated copper foil 8 is applied as a conductive element by means of magnetron sputtering or the like on one side thereof with the film base 7 as a base material, and the copper foil 8 is excellent in conductivity and easy to process. The surface of the film substrate 7 on the side without the copper foil 8 is provided with the second protective layer 102, the surface of the copper foil 8 is provided with the first protective layer 101, and PI is preferably selected as the material of the first protective layer 101 and the second protective layer 102, so that the film substrate is insulating and has strong stability, and the copper foil 8 can be well protected. For the portion of the first electrode 61 to be inserted into the light adjusting film 100, the first protective layer 101 is cut off, the conductive adhesive 9 is disposed on the exposed copper foil 8, after the first electrode 61 is inserted into the light adjusting film 100, the conductive adhesive 9 and the first conductive layer 2 are in direct contact so that the first electrode 61 can supply power to the first conductive layer 2, and the conductive adhesive 9 is a pressure-sensitive adhesive or an anisotropic conductive adhesive. For the end of the portion of the first electrode 61 outside the light adjusting film 100, a part of the first protective layer 101 is cut to expose the copper foil 8 in the area, and the lead 20 is disposed on the exposed copper foil 8 to extend the length of the electrode, which is convenient for operation in practical use. Preferably, the lead 20 is fixed to the end surface of the copper foil 8 by soldering, and the solder 30 used for soldering covers the lead 20 and the end surface of the copper foil 8.
It can be seen that the overall structure of the second electrode 62 is similar to that of the first electrode 61, and is composed of the first passivation layer 101, the copper foil 8a, the film substrate 7, and the second passivation layer 102 from top to bottom, except that the second electrode 62 is directly contacted with the second conductive layer 4, so that the conductive paste 9a in the second electrode 62 is disposed on the side of the copper foil 8a close to the second conductive layer 2. As shown in fig. 4, in the area where the conductive paste 9a is disposed, it is necessary to cut the second conductive layer 102 and the film base 7 to expose the copper foil 8a, and the conductive paste 9a is disposed on the exposed surface of the copper foil 8 a. In order to reduce the difference between the manufacturing processes of the first electrode 61 and the second electrode 62, the lead 20 of the second electrode 62 may be fixed on the side of the copper foil 8a close to the first conductive layer 2.
The whole thickness of the light adjusting film electrode 6 to be inserted between the first conductive layer 2 and the second conductive layer 4 of the light adjusting film 100 is not more than 50% of the thickness of the light adjusting film 100, and the proper thickness can make the operation of inserting the light adjusting film electrode 6 easier and the stability after inserting and fixing is strong.
In one embodiment, an insulating protective layer may be disposed at the position of the solder 30 for protecting the connection of the leads 20, and the risk of electrical leakage due to the exposed solder can be avoided.
In one embodiment, the first electrode 61 and the second electrode 62 are L-shaped, and are disposed opposite to each other so that the entire light control membrane electrode 6 is T-shaped, and the left and right are the first electrode 61 communicating with the first conductive layer 2 and the second electrode 62 communicating with the second conductive layer 4, respectively. The first electrode 61 and the second electrode 62 may be an integral body connected with the film substrate 7, and include a bonding section between the first conductive layer 2 and the second conductive layer 4 and a lead-out section perpendicular to the bonding section, the width of the lead-out section is preferably 15-30mm, and the integral body and the lead-out section with a certain width can make the electrode integral body more stable.
The utility model discloses a PDLC membrane of adjusting luminance has stable electrode structure, can be used for preparing intermediate layer light control glass. The welding point is arranged outside the glass, the glass splintering risk caused by the welding point arranged inside the glass can be avoided, and the prepared sandwich dimming glass can be used for vehicles or building curtain walls.
The above description is only for providing the better embodiment of the present invention, and is not the limit of the present invention, the present invention is not limited to the above examples, and the changes, modifications, additions or replacements made by the ordinary skilled in the art within the essential scope of the present invention also belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a PDLC membrane of adjusting luminance, includes from last first base layer (1) to down, first conducting layer (2), polymer liquid crystal layer (3), second conducting layer (4), second base layer (5) and be used for connecting the membrane electrode of adjusting luminance (6) of power, its characterized in that, membrane electrode of adjusting luminance (6) are including first electrode (61) and second electrode (62) of connecting first conducting layer (2) and second conducting layer (4) respectively, first electrode (61) and second electrode (62) include respectively:
a film substrate (7);
a copper foil (8,8a) attached to one surface of the film base (7);
conductive paste (9,9a) provided on the surface of the copper foil (8,8 a);
a protective layer including a first protective layer (101) covering the surface of the copper foil (8,8a) and a second protective layer (102) covering the surface of the film base (7) without the copper foil (8,8 a);
and a lead (20) fixed to the end surface of the copper foil (8,8 a).
2. The PDLC light modulation film according to claim 1, wherein the conductive adhesive (9,9a) of the first electrode (61) is disposed on one side of the copper foil (8) close to the first conductive layer (2), and the surface of the copper foil (8) is covered by the first protective layer (101) in the area without the conductive adhesive (9) and the lead (20).
3. The PDLC light modulation film according to claim 2, wherein the conductive adhesive (9,9a) of said second electrode (62) is disposed on the side of the copper foil (8a) close to the second conductive layer (4).
4. The PDLC light modulation film according to claim 1, wherein said first electrode (61) and said second electrode (62) are L-shaped, and are oppositely disposed to make the whole light modulation film electrode (6) T-shaped.
5. The PDLC light modulation film according to claim 4, wherein said first electrode (61) and said second electrode (62) are an integral body of said film substrate (7), and comprise a bonding section between said first conductive layer (2) and said second conductive layer (4) and a lead-out section perpendicular to said bonding section, said lead-out section has a width of 15-30 mm.
6. The PDLC light modulation film of claim 1, wherein said light modulation film electrode (6) has a thickness not more than 50% of the PDLC light modulation film thickness.
7. The PDLC light modulation film according to claim 1, wherein said film base (7) material is PI or PET, and said protection layer material is PI.
8. The PDLC light modulation film according to claim 1, wherein said conductive adhesive (9,9a) is a pressure sensitive adhesive or an anisotropic conductive adhesive.
9. The PDLC light modulation film as claimed in claim 1, wherein said lead (20) is fixed to the end surface of said copper foil (8,8a) by soldering, and a solder (30) used for soldering covers said lead (20) and said end surface of said copper foil (8,8 a).
10. The PDLC light modulation film as claimed in claim 9, wherein said solder (30) has an insulating protective layer around it to protect the junction of the lead (20) and the end surface of the copper foil (8,8 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378429.5U CN211786487U (en) | 2020-03-24 | 2020-03-24 | PDLC light modulation film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020378429.5U CN211786487U (en) | 2020-03-24 | 2020-03-24 | PDLC light modulation film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211786487U true CN211786487U (en) | 2020-10-27 |
Family
ID=72931412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020378429.5U Active CN211786487U (en) | 2020-03-24 | 2020-03-24 | PDLC light modulation film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211786487U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113568211A (en) * | 2021-07-26 | 2021-10-29 | Oppo广东移动通信有限公司 | PDLC (polymer dispersed liquid crystal) dimming film, manufacturing method thereof, electronic equipment shell and electronic equipment |
| CN115291444A (en) * | 2022-09-02 | 2022-11-04 | 上海隆昇光电新材料有限公司 | Partition dimming film, electrode manufacturing method and laser cutting device |
-
2020
- 2020-03-24 CN CN202020378429.5U patent/CN211786487U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113568211A (en) * | 2021-07-26 | 2021-10-29 | Oppo广东移动通信有限公司 | PDLC (polymer dispersed liquid crystal) dimming film, manufacturing method thereof, electronic equipment shell and electronic equipment |
| CN115291444A (en) * | 2022-09-02 | 2022-11-04 | 上海隆昇光电新材料有限公司 | Partition dimming film, electrode manufacturing method and laser cutting device |
| CN115291444B (en) * | 2022-09-02 | 2024-03-15 | 上海隆昇光电新材料有限公司 | Partition dimming film, electrode manufacturing method and laser cutting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105223747B (en) | A kind of display panel | |
| US7719751B2 (en) | Electrical contact technique for electrochromic windows | |
| US7436482B2 (en) | Laminated glass including a light adjuster with an electrode structure having particular thickness | |
| CN211786487U (en) | PDLC light modulation film | |
| JP7119305B2 (en) | dimmer | |
| CN100380213C (en) | Light adjuster and laminated glass | |
| CN110073283A (en) | Electroactive device with three layers of busbar | |
| KR100856151B1 (en) | Method for making electrode terminal in polymer dispersed liquid crystal display | |
| EP4202542A1 (en) | Electrochromic device and electronic device | |
| CN102859422B (en) | Seal tape, light modulating element, light modulating structure and method for producing light modulating structure | |
| JP3534288B2 (en) | Light control glass and manufacturing method thereof | |
| CN107703693A (en) | A kind of electronic-paper display screen, display device and bonding method | |
| CN108873413B (en) | Liquid crystal display panel | |
| CN208168683U (en) | Electric-controlled light-regulating double glazing | |
| CN206805089U (en) | It is a kind of using conductive fabric connection PCB and the attachment structure of liquid crystal display | |
| CN207601461U (en) | A kind of novel light modulation membrane electrode | |
| CN115390330A (en) | Conductive substrate, light adjustable device and rearview mirror | |
| KR101939054B1 (en) | Method for forming electrodes on film for smart window film and smart window film using it | |
| KR102085206B1 (en) | Electronic device with conductive flexible substrate | |
| CN113219755A (en) | Conductive structure for electrochromic device and electrochromic device | |
| CN207301574U (en) | A kind of electronic-paper display screen and display device | |
| CN109116653A (en) | A kind of electroluminescent light modulation device of narrow side | |
| CN220232200U (en) | Electronic paper structure | |
| JPH0452732Y2 (en) | ||
| CN209460530U (en) | A kind of electromagnetic shielding glass of high transparency high shielding effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |