CN210721016U - Photocurable film peeling device - Google Patents
Photocurable film peeling device Download PDFInfo
- Publication number
- CN210721016U CN210721016U CN201921254572.7U CN201921254572U CN210721016U CN 210721016 U CN210721016 U CN 210721016U CN 201921254572 U CN201921254572 U CN 201921254572U CN 210721016 U CN210721016 U CN 210721016U
- Authority
- CN
- China
- Prior art keywords
- imaging
- film
- group
- driving wheels
- magnetic driving
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The utility model relates to a photocuring membrane stripping off device, including the rigidity frame, the cistern frame is fixed at the rigidity frame top, the formation of image film cladding is in cistern frame bottom and constitutes the opening cistern with the cistern frame, the formation of image subassembly is fixed inside the trapezoidal support of cavity, the magnetic force action wheel is located the both sides limit that the cavity is trapezoidal to be supported, the assembly of the trapezoidal support of cavity, formation of image subassembly and magnetic force action wheel is fixed on sharp module workstation, sharp module is fixed in the rigidity frame bottom, the trapezoidal support of cavity upwards supports the formation of image film to make the formation of image film by the flat tensioning in support position, the formation of image film upper surface is arranged in to the magnetic conduction to closely the actuation with the magnetic force action wheel on the trapezoidal support both sides limit of cavity respectively. The utility model discloses scheme economy is reasonable, peel off fast, little to the damage of cured substance and membrane, easily popularizes and applies in long breadth, high accuracy, high efficiency photocuring three-dimensional former.
Description
Technical Field
The utility model belongs to the technical field of three-dimensional printing and specifically relates to a photocuring membrane stripping off device.
Background
The photocuring three-dimensional forming is one of the mainstream modes of 3D printing of high polymer materials, has the advantages of simple mechanical structure, high forming speed and good surface quality compared with the technologies such as hot melt extrusion Forming (FDM) and selective laser powder sintering (SLS), and is widely applied to the industries such as dentistry, jewelry, automobiles and the like. According to different positions of the curing liquid level, the photocuring three-dimensional forming can be divided into a lower liquid level curing mode and an upper liquid level curing mode. The lower liquid surface curing mode images an optical pattern on a transparent bottom of a liquid pool, the height of a formed part is not limited by the depth of the liquid pool, and the flatness of a cured layer is not influenced by liquid fluctuation, so that the lower liquid surface curing mode is one of the main forms of the existing light curing equipment. The complete lower liquid level photocuring three-dimensional forming can be decomposed into a layer-by-layer sequential curing process of a plurality of slicing layers, and each slicing layer is divided into three stages of imaging, continuous exposure curing and film stripping. The imaging is a link of transmitting slice data of the three-dimensional model layer by layer to a two-dimensional imaging element to generate a planar pattern; the continuous exposure solidification is a link that a light source acts on a local area of the liquid polymer material under the control of an imaging element and causes the liquid polymer material to be solidified; the film stripping is a link for separating the cured substance from the imaging film, so that the liquid polymer material can be refilled between the imaging film and the forming surface of the current curing, and preparation is made for curing the next cut sheet layer. Obviously, after the liquid polymer material filled between the imaging film and the cured molding surface is continuously exposed and cured, the lower surface of the cured product is adhered to the imaging film, and the upper surface is adhered to the upper cured layer. Therefore, peeling the cured product from the imaged film is an essential link in carrying out continuous layer-by-layer photocuring three-dimensional molding. In particular, when the lower surface of the cured product is peeled off from the imaging film, the cured product needs to overcome a large surface adhesion force with the imaging film, which may cause the cured product to deform, damage or even tear, thereby reducing the printing quality or directly causing printing failure.
Existing film peeling methods include: the imaging film is stripped from the edge of the cured product gradually through the elastic deformation of the imaging film until the imaging film is completely separated. However, since the image-forming film also needs to have light transmittance, the thickness of the image-forming film is generally only 0.1-0.2mm, so that the tension coefficient is very low, and the peeling force and the peeling angle generated by the elastic deformation are also very small. In practice, the imaging film is deformed greatly, but is not stripped from the lower surface of a cured object in time, so that the subsequent slice layer photocuring has to be delayed for waiting, and the imaging film deformed greatly rebounds at a high speed at the moment of being separated from the cured object, so that the imaging film and the cured object are easily damaged, and the comprehensive efficiency of the photocuring three-dimensional forming equipment is directly influenced. At present, in the field of photocuring three-dimensional forming, aiming at the requirement of stripping a cured product from an imaging film, a photocuring film stripping method which is simple in structure, timely and reliable in stripping action and small in damage to the cured product and the film is also lacked.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve above-mentioned prior art's shortcoming, provide a simple structure, peel off the action in time reliable, to the little photocuring membrane stripping off device of condensate and membrane damage.
The utility model provides a technical scheme that its technical problem adopted: the photocuring film stripping device comprises a rigid frame, wherein a liquid tank frame is arranged at the top of the rigid frame, an imaging film is arranged at the bottom of the liquid tank frame, the imaging film and the liquid tank frame jointly form an open liquid tank, a photosensitive liquid polymer material is arranged in the open liquid tank, a linear module is arranged at the bottom of the rigid frame, a hollow trapezoidal support is arranged on a linear module workbench and can move towards two sides on the linear module, an imaging component is arranged in the hollow trapezoidal support, the hollow trapezoidal support supports the imaging film at the top to enable the support part to be tensioned and flattened, a gap of the thickness of a single slice layer is maintained between the support part and a photocuring forming body above the support part, a first magnetic driving wheel group and a second magnetic driving wheel group which are formed by a pair of rollers are respectively arranged at two sides of the hollow trapezoidal support, and a first magnetic roller, The second magnetic-conducting needle roller is arranged above the imaging film and presses the imaging film at the corresponding part tightly at two sides of the hollow trapezoid support through attraction and matching.
Preferably, a photocuring controller is respectively connected with the linear module, the imaging assembly, the first group of magnetic driving wheels and the second group of magnetic driving wheels, the linear module is controlled to drive the hollow trapezoidal support, the imaging assembly, the first group of magnetic driving wheels and the second group of magnetic driving wheels move at the bottom of the imaging film, the imaging assembly is controlled to enable all or part of all the slice layer patterns to be photocured or corresponding to the real-time position of the linear module to be projected onto the imaging film tensioned and flattened at the top of the hollow trapezoidal support, and the first group of magnetic driving wheels and the second group of magnetic driving wheels are controlled to synchronously rotate along with the movement of the linear module, so that the imaging film attached to the hollow trapezoidal support is always in a flat tensioned state.
Preferably, the matching mode between the magnetic driving wheel and the magnetic guide needle roller can be a cylindrical matching mode or a circular arc tooth matching mode.
Preferably, the contact part of the hollow trapezoidal support and the imaging film is provided with a plurality of rollers.
Before the light curing is started, injecting a photosensitive liquid polymer material into the opening liquid tank, then sending a motion signal to the linear module by the light curing controller, sending a synchronous rotation signal to the magnetic driving wheel, controlling the linear module to drive the hollow trapezoidal support, the imaging component and the magnetic driving wheel assembly to move to the central position of the opening liquid tank, and in the moving process of the linear module, synchronizing the rotating speed of the magnetic driving wheel with the moving speed of the linear module so that the imaging film in the top area of the hollow trapezoidal support is always in a flat tensioning state, and maintaining the thickness of a single slice layer of liquid material between the imaging film in the flat tensioning state and the lower surface of the cured formed body on the upper layer; the magnetic driving wheels on two sides of the hollow trapezoidal support and the magnetic guide roller pins above the imaging films are mutually attracted, and the imaging films on two sides of the hollow trapezoidal support are tightly pressed and attached to the trapezoidal side edges.
During photocuring, the photocuring controller sends the sliced layer image data to the imaging assembly, the imaging assembly projects an optical plane pattern onto the imaging film in the top area of the hollow trapezoid support, and the optical pattern projection is closed after exposure time is maintained, so that the liquid material between the upper layer of cured formed body and the imaging film is selectively exposed to form a cured body and is attached to the lower part of the upper layer of cured formed body and the imaging film.
When the exposed condensate is stripped from the imaging film, the photocuring controller sends a motion signal to the linear module and sends a synchronous rotation signal to the magnetic driving wheel, the linear module is controlled to drive the assembly consisting of the hollow trapezoidal support, the imaging assembly and the magnetic driving wheel, the assembly moves continuously to the side of the opening liquid tank until the imaging film attached to the forefront of the condensate passes through the magnetic rolling wheel and the magnetic roller needle at the rear of the moving direction, and at the moment, the imaging film attached to the condensate is completely stripped; in the moving process of the linear module, once the imaging film behind the moving direction moves out of the top area of the hollow trapezoid support, the imaging film is immediately stripped from the cured object and pressed tightly on the rear side edge of the hollow trapezoid support by the synchronous rotation of the magnetic driving wheel behind the moving direction and the magnetic guide roller pin in attraction fit with the magnetic driving wheel, the stripped imaging film is further separated from the cured object by rolling the magnetic driving wheel and the magnetic guide roller pin continuously, and the photosensitive liquid polymer material in the opening liquid tank automatically flows and is filled in a gap area generated by the separation of the imaging film and the cured object.
The utility model discloses an imaging film peel angle is confirmed by the inclination on cavity trapezoidal support both sides limit, can initiatively set for imaging film's peel angle through revising cavity trapezoidal support both sides limit inclination to obtain good peeling effect, reduce the damage of peeling off the process to imaging film simultaneously, prolong imaging film's life and change cycle; the utility model discloses a magnetic force action wheel passes through magnetic force attraction with the magnetic conduction kingpin and presss from both sides tight formation of image film, peels off the formation of image film from the cured object lower surface with great angle of peeling off at the position very near apart from the cured object, and it is synchronous with sharp module moving speed to peel off the action response, peels off action response and does not have the time delay, can reduce by a wide margin that every slice layer takes shape always consuming time.
When the hollow ladder-shaped support moves from the edge of the opening liquid tank to the central area of the opening liquid tank, the imaging film and the hollow ladder-shaped support side edge which are positioned in front of the moving direction and the upper layer of solidified body form a wedge-shaped area, and continuously extrude the photosensitive liquid polymer material in the moving process; when the hollow trapezoid support reaches the curing forming position in the central area of the opening liquid tank, the top of the hollow trapezoid support is tensioned between the flat imaging film and the upper layer of cured body, a layer of compact and uniform photosensitive liquid polymer material is reliably filled, and the void defect is not easy to generate during curing forming.
The utility model discloses a photocuring membrane stripping off device, scheme economy is reasonable, peel off fast, little to the damage of cured substance and membrane, easily popularizes and applies in long breadth, high accuracy, high efficiency photocuring three-dimensional former.
Drawings
FIG. 1-1 is a schematic view of the overall structure of the present invention;
fig. 1-2 are sectional perspective views of the present invention;
FIGS. 1-3 are schematic cross-sectional plan views of the present invention;
fig. 2 is a schematic diagram of the film peeling after one-time exposure curing in the present invention;
fig. 3 is a schematic diagram of film peeling in continuous exposure curing according to the present invention;
fig. 4 is a control signal connection diagram of the present invention;
description of reference numerals: the device comprises a rigid frame 1, a liquid tank frame 2, an imaging film 3, a linear module 4, a hollow trapezoid support 5, an imaging assembly 6, a first group of magnetic driving wheels 7, a second group of magnetic driving wheels 8, a first magnetic roller pin 9, a second magnetic roller pin 10, a photosensitive liquid polymer material 11, a photocuring forming body 12, a cured object 13 for exposure, a local part 14 and a photocuring controller 20.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
example 1:
referring to fig. 1-1, 1-2, 1-3, a liquid tank frame 2 is arranged on the top of a rigid frame 1, an imaging film 3 is coated on the bottom of the liquid tank frame 2, and the imaging film 3 and the liquid tank frame 2 form an open liquid tank; the bottom of the rigid frame 1 is provided with a linear module 4, a workbench of the linear module 4 is provided with a hollow ladder support 5, an imaging component 6 is arranged in the hollow ladder support 5, two sides of the hollow ladder support are respectively provided with a first group of magnetic driving wheels 7 and a second group of magnetic driving wheels 8, a first magnetic-conductive roller pin 9 and a second magnetic-conductive roller pin 10 are arranged above the imaging film 3, the first magnetic-conductive roller pin 9 and the second magnetic-conductive roller pin 10 are respectively matched with the first group of magnetic driving wheels 7 and the second group of magnetic driving wheels 8 in an attracting way, and the imaging film 3 of the corresponding position is tightly pressed on two side edges of the hollow trapezoid support 5, the imaging film 3 is supported at the top of the hollow trapezoid support 5, so that the imaging film 3 of the supported position is tensioned and flattened, and the imaging component 6 projects a plane pattern to the tensioned and flattened area of the imaging film 3, thereby realizing exposure and solidification of the photosensitive liquid polymer material 11 in the opening liquid tank.
As shown in fig. 2, an unfinished light-cured molded body 12 is arranged in the open liquid tank, a cured object 13 exposed at this time is arranged on the lower surface of the light-cured molded body 12, the lower surface of the cured object 13 exposed at this time is bonded with the imaging film 3, the imaging component 6 has finished the exposure at this time and closed the image projection, and the linear module 4 drives the hollow trapezoidal support 5, the imaging component 6, the first group of magnetic driving wheels 7 and the second group of magnetic driving wheels 8 to move continuously from the exposure area to the edge of the open liquid; in the moving process, the local part 14 of the imaging film 3 bonded with the cured product 13 exposed at this time is continuously rolled and pulled by the first group of magnetic driving wheels 7 and the first magnetic guide roller needles 9 behind the moving direction, and then is linearly stripped from the cured product 13 exposed at this time; when the whole area of the imaging film 3 bonded with the cured product 13 exposed at this time passes through the first group of magnetic driving wheels 7 and the first magnetic guide roller pin 9, the cured product 13 exposed at this time is completely stripped from the imaging film 3, and the photo-curing forming process of the slice layer is finished.
As shown in fig. 4, the light curing controller 20 is connected to the linear module 4, the light curing controller 20 is connected to the imaging assembly 6, and the light controller 20 is connected to the first group of magnetic driving wheels 7 and the second group of magnetic driving wheels 8; the photocuring controller 20 sends an electric signal to the linear module 4 to control the linear module 4 to drive the hollow trapezoidal support 5, the imaging component 6, the first group of magnetic driving wheels 7 and the second group of magnetic driving wheels 8 to move at the bottom of the imaging film 3; the photocuring controller 20 sends an electric signal to the first group of magnetic driving wheels 7 and the second group of magnetic driving wheels 8 to control the first group of magnetic driving wheels 7 and the second group of magnetic driving wheels 8 to synchronously rotate along with the movement of the linear module 4, so that the imaging film 3 attached to the hollow trapezoidal support 5 is always in a flat and tensioned state; the light curing controller 20 sends an electric signal to the imaging assembly 6 to control the light curing assembly to project all or part corresponding to the real-time position of the linear module of each slice layer pattern onto the imaging film 3 tensioned and flattened on the top of the hollow ladder-shaped support 5.
The utility model discloses a magnetic force action wheel is located the magnetic conduction kingpin of opening cistern through magnetic attraction, the cooperation of attracting through magnetic conduction kingpin and magnetic force action wheel compresses tightly the imaging film in the trapezoidal side that supports of cavity, and rotate in step and mutually support with the magnetic conduction kingpin at sharp module continuous movement in-process, roll extrusion in succession, drag the imaging film, thereby in order to move gradually, linear mode peels off the imaging film from the cured object lower surface, it is synchronous with sharp module moving speed to peel off speed, controllable, and need not to set up complicated mechanical structure or other machinery in the opening cistern, electric power component.
The utility model discloses the control mode of magnetic force action wheel except that removing along with sharp module and rotate in step, also can implement differential control through the photocuring controller to the tensioning state of more nimble control formation of image film 3, and then reach different formation of image and peel off the effect. The utility model discloses the geometric form of magnetic force action wheel and magnetic conduction kingpin can adopt the cylinder cooperation mode in this embodiment, does to adopt other cooperation modes such as circular arc tooth.
The utility model discloses a cavity trapezoidal support also can set up a plurality of gyro wheels on the surface to the friction mode when moving its and formation of image film relative motion becomes the rolling friction mode from the sliding friction mode of this embodiment.
Example 2:
as shown in fig. 3, an unfinished light-cured molded body 12 is disposed in the open liquid tank, a cured product 13 of the current exposure is disposed on the lower surface of the light-cured molded body 12, the lower surface of the cured product 13 of the current exposure is bonded to the imaging film 3, and the linear module 4 drives the hollow trapezoidal support 5, the imaging component 6, the first set of magnetic driving wheels 7, and the second set of magnetic driving wheels 8 to continuously move from the exposure area to the edge of the open liquid tank; in the moving process, the imaging component 6 projects the corresponding area of the slice layer pattern on the imaging film 3 above in a rolling manner according to the real-time position of the linear module; the local part 14 of the imaging film 3 bonded with the cured product 13 exposed at this time is continuously rolled and pulled by the first group of magnetic driving wheels 7 and the first magnetic roller pin 9 behind the moving direction, and then is linearly stripped from the cured product 13 exposed at this time; the imaging assembly 6 closes the image projection after the pattern of the slice layer is completely projected, the linear module 4 drives the hollow trapezoidal support 5, the imaging assembly 6, the first group of magnetic driving wheels 7 and the second group of magnetic driving wheels 8 to continuously move forwards until the imaging film 3 bonded with the exposed cured material 13 completely passes through the first group of magnetic driving wheels 7 and the first magnetic roller needles 9, the exposed cured material 13 is completely stripped from the imaging film 3, and the photocuring forming process of the slice layer is finished.
This method is suitable for a film peeling method in which one-shot exposure curing molding cannot be realized on the lower surface of the photo-cured molded body 12 and continuous exposure curing molding is required.
In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.
Claims (4)
1. A photo-curing film peeling apparatus includes a rigid frame (1), characterized in that: the top of a rigid frame (1) is provided with a liquid tank frame (2), the bottom of the liquid tank frame (2) is provided with an imaging film (3), the imaging film (3) and the liquid tank frame (2) jointly form an open liquid tank, the open liquid tank is internally provided with a photosensitive liquid polymer material (11), the bottom of the rigid frame (1) is provided with a linear module (4), a workbench of the linear module (4) is provided with a hollow trapezoidal support (5), the hollow trapezoidal support (5) can move towards two sides on the linear module (4), the hollow trapezoidal support (5) is internally provided with an imaging component (6), the top of the hollow trapezoidal support (5) supports the imaging film (3) to ensure that the support part is tensioned and flattened, a gap of the thickness of a single slice layer is maintained between the support part and a light-cured forming body (12) above the support, the two sides of the hollow trapezoidal support (5) are respectively provided with a first group of magnetic driving wheels (7), and a first magnetic conduction roller pin (9) and a second magnetic conduction roller pin (10) which are matched with the first group of magnetic driving wheels (7) and the second group of magnetic driving wheels (8) are arranged above the imaging thin film (3), and the imaging thin film (3) at the corresponding part is tightly pressed on two sides of the hollow trapezoidal support (5) through attraction and matching.
2. The apparatus for peeling off a photocurable film according to claim 1, wherein: a light curing controller (20) is respectively connected with the linear module (4), the imaging component (6), the first group of magnetic driving wheels (7) and the second group of magnetic driving wheels (8), the control straight line module (4) drives the hollow trapezoidal support (5), the imaging component (6), the first group of magnetic driving wheels (7) and the second group of magnetic driving wheels (8) to move at the bottom of the imaging film (3), the imaging component (6) is controlled to project all the photo-cured slice layer patterns or the local part corresponding to the real-time position of the straight line module (4) onto the imaging film (3) which is tensioned and flattened at the top of the hollow trapezoidal support (5), and controlling the first group of magnetic driving wheels (7) and the second group of magnetic driving wheels (8) to synchronously rotate along with the movement of the linear module (4), thereby ensuring that the imaging film (3) of the joint part of the hollow trapezoid support (5) is always in a flat and tensioned state.
3. The apparatus for peeling off a photocurable film according to claim 1 or 2, wherein: the matching mode between the magnetic driving wheel and the magnetic guide needle roller can be a cylindrical matching mode or an arc tooth matching mode.
4. The apparatus for peeling off a photocurable film according to claim 1 or 2, wherein: the contact part of the hollow trapezoidal support (5) and the imaging film (3) is provided with a plurality of rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921254572.7U CN210721016U (en) | 2019-08-05 | 2019-08-05 | Photocurable film peeling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921254572.7U CN210721016U (en) | 2019-08-05 | 2019-08-05 | Photocurable film peeling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210721016U true CN210721016U (en) | 2020-06-09 |
Family
ID=70935258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921254572.7U Withdrawn - After Issue CN210721016U (en) | 2019-08-05 | 2019-08-05 | Photocurable film peeling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210721016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308625A (en) * | 2019-08-05 | 2019-10-08 | 杭州德迪智能科技有限公司 | A kind of photocuring film stripping off device and method |
-
2019
- 2019-08-05 CN CN201921254572.7U patent/CN210721016U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308625A (en) * | 2019-08-05 | 2019-10-08 | 杭州德迪智能科技有限公司 | A kind of photocuring film stripping off device and method |
| CN110308625B (en) * | 2019-08-05 | 2023-08-08 | 杭州德迪智能科技有限公司 | Photo-curing film stripping device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5171490A (en) | Method and apparatus for production of three-dimensional objects by irradiation of photopolymers | |
| EP1852244B1 (en) | Material delivery system for use in solid imaging | |
| EP1852243B1 (en) | Material delivery tension and tracking system for use in solid imaging | |
| US10919214B2 (en) | Method and apparatus for manufacturing structure | |
| NL2012087C2 (en) | Additive manufacturing system for manufacturing a three dimensional object. | |
| US20150251351A1 (en) | Remove and refill method and apparatus for laminated object manufacturing | |
| CN100575031C (en) | The method and apparatus of replicating microstructured optical masks | |
| US20160136902A1 (en) | System for layered construction of a body and pan therefor | |
| JPH0839602A (en) | Injection molding simultaneous patterning method and apparatus | |
| CN210721016U (en) | Photocurable film peeling device | |
| CN111421815A (en) | D L P3D bioprinter | |
| CN110308625B (en) | Photo-curing film stripping device and method | |
| JPH08294742A (en) | Method and device for making prototype containing part and support | |
| US20210260819A1 (en) | Systems, apparatuses, and methods for manufacturing three dimensional objects via continuously curing photopolymers, utilising a vessel containing an interface fluid | |
| US11840017B2 (en) | Techniques for releasing parts in additive fabrication and related systems and methods | |
| CN217021437U (en) | Photocuring 3D printing device | |
| CN215473101U (en) | Formula of sinking DLP type 3D printer | |
| KR102415399B1 (en) | A bio dlp 3d printer containing magnetically linked reservoir for multi cell or material printing | |
| WO2021103502A1 (en) | Multi-channel 3d printing method and 3d printing system | |
| CN208730374U (en) | Without layering continous way 3D printing system and optical lens components | |
| JPH10244596A (en) | Three-dimensional form-generating method by film lamination forming method and three-dimensional form-generating apparatus thereby | |
| DE19535967A1 (en) | Method of making a print web with a graphic image | |
| CN210501464U (en) | LCD 3D printer model peeling structure | |
| KR20140094131A (en) | The method of manufacturing substrate having ultra-fine conductive circuit by silver paste filling and its substrate. | |
| KR20140094315A (en) | The method of manufacturing polyimide substrate having ultra-fine conductive circuit by silver paste filling and its substrate. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200609 Effective date of abandoning: 20230808 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200609 Effective date of abandoning: 20230808 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |