CN112652241A - Crimping device and crimping test device - Google Patents
Crimping device and crimping test device Download PDFInfo
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- CN112652241A CN112652241A CN202011401430.6A CN202011401430A CN112652241A CN 112652241 A CN112652241 A CN 112652241A CN 202011401430 A CN202011401430 A CN 202011401430A CN 112652241 A CN112652241 A CN 112652241A
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- 238000002788 crimping Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000004804 winding Methods 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000013011 mating Effects 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
The utility model belongs to the technical field of semiconductor device, especially relate to a crimping device and test device curls, crimping device is used for convoluteing flexible product, including the spool body, a part of the surface of spool body includes the step face, and the length direction of step face sets up along being on a parallel with spool body axial direction, and the step face is used for reducing the difference in height of two adjacent flexible product handing-over departments. The curling device of the embodiment of the application can reduce the extra stress of the flexible product caused by the thickness of the flexible product at the starting end when the flexible product is wound.
Description
Technical Field
The application belongs to the technical field of semiconductor devices, and particularly relates to a curling device and a curling testing device.
Background
With the development of display technology, large-size portable storage becomes a new demand, and a rollable flexible display device is one of the directions of the development of display technology today. The reliability of the curling of the flexible screen is one of the important quality properties of such flexible display devices.
When the flexible screen is curled by the scroll, excessive stress is easily caused on the flexible display panel, the curling service life of the flexible screen is shortened, or the service life of the flexible screen body cannot be accurately tested.
Disclosure of Invention
In view of this, the present application provides a curling device and a curl testing device, which can wind a flexible product and reduce the stress of the flexible product.
In order to solve the technical problem, the application adopts a technical scheme that: a crimping device is used for winding flexible products and comprises a scroll body, wherein one part of the outer surface of the scroll body comprises a step surface, the length direction of the step surface is arranged in the direction parallel to the axial direction of the scroll body, and the step surface is used for reducing the height difference of the joint of two adjacent circles of flexible products.
Wherein, the thickness of step face equals the thickness of flexible product.
The part of one side of the step surface of the scroll body is a first semi-cylinder, the part of the other side of the step surface of the scroll body is a second semi-cylinder, and the tangent line of one side, away from the step surface, of the first semi-cylinder coincides with the tangent line of one side, away from the step surface, of the second semi-cylinder.
Wherein, the diameter difference of the first semi-cylinder and the second semi-cylinder is equal to the thickness of the flexible product.
Wherein, the first semi-cylinder and the second semi-cylinder can be arranged separately.
The curling device comprises a central shaft, a first semi-cylinder is provided with a first arc-shaped groove along the axial direction, and a second semi-cylinder is provided with a second arc-shaped groove along the axial direction; the cavity formed by the first arc-shaped groove and the second arc-shaped groove is used for accommodating the central shaft.
Wherein, the axis of the central shaft is coincided with the axis of the first semi-cylinder or the second semi-cylinder with the smallest radius.
Wherein, the central shaft is inserted in the cavity.
Wherein, the outside of center pin sets up two at least connecting pieces, sets up first fitting piece in the first arc wall, sets up the second fitting piece in the second arc wall, and two at least connecting pieces cooperate with fixed connection center pin, first semicircle post and second semicircle post with first fitting piece, second fitting piece respectively.
Wherein the surface of the spool body lower at the step face includes an adhesive surface.
The application also comprises a second technical scheme, namely a curling test device which comprises the curling device.
The beneficial effect of this application is: be different from prior art, the crimping device of this application, through setting up the step face on the spool body, and the length of step face sets up along spool body axial, make when adopting the flexible product of spool device coiling, laminate the initiating terminal of flexible product in the surface of the lower spool body of step face department, and coil flexible product, the flexible product of coiling on the spool body is more than two circles at least, can improve the extra stress that the fixed initiating terminal that adopts pure cylindric spool body coiling flexible product to cause because of the difference in height that the thickness of flexible product caused. The curling device of the embodiment of the application can reduce the extra stress of the flexible product caused by the thickness of the flexible product at the starting end when the flexible product is wound.
Drawings
FIG. 1 is a perspective view of a first embodiment of a crimping apparatus according to the present application;
FIG. 2 is a schematic cross-sectional view of one embodiment of the crimping device of the present application winding a flexible product;
FIG. 3 is a schematic cross-sectional view taken perpendicular to the axial direction of FIG. 1;
FIG. 4 is a perspective view of a second embodiment of the crimping device of the present application;
FIG. 5 is a schematic illustration of the exploded structure of FIG. 4;
FIG. 6 is a schematic cross-sectional view taken perpendicular to the axial direction of FIG. 4;
FIG. 7 is a schematic view of an exploded configuration of a third embodiment of the crimping device of the present application;
FIG. 8 is a perspective view of a third embodiment of the crimping device of the present application;
FIG. 9 is a perspective view of a fourth embodiment of the crimping device of the present application;
fig. 10 is a perspective view of a fifth embodiment of the crimping device of the present application.
10, a reel body; 13. a step surface; 11. a first half cylinder; 111. a first arc-shaped slot; 12. a second semi-cylinder; 121. a second arc-shaped slot; 122. a second mating member; 14. a tacky surface; 15. a cavity; 20. a flexible product; 21. a first ring of flexible product; 22. a second loop of flexible product; 30. a central shaft; 31. a connecting member.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
As shown in fig. 1, the present application provides a winding device for winding a flexible product 20, comprising a reel body 10, wherein a part of the outer surface of the reel body 10 comprises a step surface 13, the length direction of the step surface 13 is arranged in a direction parallel to the axial direction of the reel body 10, and the step surface 13 is used for reducing the height difference at the joint of two adjacent turns of the flexible product 20.
The curling device of the embodiment of the application, through setting up the step surface 13 on the spool body 10, and the length of step surface 13 sets up along the spool body 10 axial, make when adopting the flexible product 20 of spool device coiling, laminate the initiating terminal of flexible product 20 in the lower surface of spool body 10 of step surface 13 department, and coil flexible product 20, flexible product 20 of coiling on spool body 10 is more than two circles at least, can improve the extra stress that the fixed initiating terminal that adopts pure cylindric spool body 10 coiling flexible product 20 to cause because of the difference in height that the thickness of flexible product 20 caused. The curling device of the embodiment of the application can reduce the extra stress of the flexible product 20 caused by the thickness of the flexible product 20 at the starting end when the flexible product 20 is wound.
In the embodiment of the present application, the flexible product 20 is a flexible display panel, and the service life of the flexible display panel can be prolonged by reducing the stress of the flexible display panel.
As shown in fig. 2, which is a schematic cross-sectional structure diagram of a flexible product 20 wound by a winding device according to an embodiment of the present disclosure, in the embodiment of the present disclosure, a thickness L of a step surface 13 is equal to a thickness H of the flexible product 20, when the flexible product 20 is wound by using the winding device according to the embodiment of the present disclosure, an end surface of the flexible product 20 is attached to a surface of the reel body 10 with a lower step surface 13, so that when the flexible product 20 is wound, an additional stress brought to the flexible product 20 by a height difference caused by the thickness of the flexible product 20 at a start end can be eliminated. Specifically, as shown in fig. 2, the flexible product 20 adjacent to the surface of the reel body 10 is a first circle of flexible product 21, and the flexible product 21 adjacent to the first circle of flexible product is a second circle of flexible product 22, wherein the starting end of the second circle of flexible product 22 and the tail end of the first circle of flexible product 21 can smoothly transition without forming a step at the joint of the starting end of the second circle of flexible product 22 and the tail end of the first circle of flexible product 21 due to the starting end of the first circle of flexible product 21. In the embodiment of the present application, the "thickness of the step surface 13" is a vertical distance of the step surface at a position of the spool body 10 where the step surface 13 is located.
In order to smoothly wind the flexible product 20 around the reel body 10, in the embodiment of the present application, a portion of one side of the step surface 13 of the reel body 10 is a first semi-cylinder 11, a portion of the other side of the step surface 13 of the reel body 10 is a second semi-cylinder 12, and a tangent line of one side of the first semi-cylinder 11 away from the step surface 13 coincides with a tangent line of one side of the second semi-cylinder 12 away from the step surface 13. In the embodiment of the present application, the portion of one side of the step surface 13 of the reel body 10 is the first semi-cylinder 11, the other side is the second semi-cylinder 12, the diameters of the first semi-cylinder 11 and the second semi-cylinder 12 are different, but the first semi-cylinder 11 and the second semi-cylinder 12 can smoothly transit through the coincidence of the tangent line of one side of the first semi-cylinder 11 away from the step surface 13 and the tangent line of one side of the second semi-cylinder 12 away from the step surface 13, so that the flexible product 20 can be smoothly wound on the reel body 10, and in addition, the curvature radius of the partial area of the flexible product 20 wound on the reel body 10 can be equal or approximate, the uniformity of the stress after the flexible product 20 is curled can be improved, when the flexible product 20 is a flexible display panel, the uniformity displayed by the flexible display panel can be improved.
In the embodiment of the present application, as shown in fig. 2 and 3, the difference between the diameter d1 of the first semi-cylinder 11 and the diameter d2 of the second semi-cylinder 12 is equal to the thickness L of the flexible product 20. In the embodiment of the present application, the extra stress of the flexible product 20 caused by the thickness of the flexible product 20 can be eliminated to the maximum extent.
In the embodiment of the present application, the first semi-cylinder 11 and the second semi-cylinder 12 are integrally disposed, so that the curling device can wind the flexible product 20.
In another embodiment of the present application, as shown in fig. 4 and 5, the first semi-cylinder 11 and the second semi-cylinder 12 can be separately disposed. The first semi-cylinder 11 and the second semi-cylinder 12 can be arranged separately, so that the first semi-cylinder 11 and the second semi-cylinder 12 can be detached and assembled into a whole, and the reel body 10 is formed when the first semi-cylinder 11 and the second semi-cylinder 12 are assembled into a whole for winding the flexible product 20. In the embodiment of the present application, the first semicylinder 11 and the second semicylinder 12 are separated from each other, so that the semicylinders with different diameters can be combined, the crimping device can adapt to the flexible products 20 with different thicknesses, and the flexible products 20 with different winding curvatures can be wound.
The terms "first" and "second" in the first semicylinder 11 and the second semicylinder 12 in the embodiment of the present application do not have a specific meaning, and are used to distinguish the semicylinders. For example, in the embodiment of the present application, the semi-cylinders A, B, E and F, wherein the semi-cylinders A, B, E and F have diameters of dA, dB, dE and dF in sequence, wherein dA < dB < dE < dF, and four semi-cylinders can be combined to form six types of reel bodies 10. When the semicylinder B and the semicylinder E are assembled as a whole, the reel body 10 combined by the semicylinder B and the semicylinder E is suitable for the flexible product 20 with the thickness of H1, when the thickness of another flexible product 20 is H2, and H2 > H1, the semicylinder B and the semicylinder F can be combined, so that the formed reel body 10 is suitable for the flexible product 20 with the thickness of H2, only half of the reel body 10 needs to be replaced at the moment, and the cost can be saved. If the winding radius is to be changed to test the influence of different curvatures, assuming that the difference between dE and dB is equal and the difference between dB and dA is equal, the reel body 10 having the combination of the semi-cylinders B and E can be changed to the combination of the semi-cylinders B and a, so that the winding radius can be reduced and the reel can be applied to the flexible product 20 having the same thickness. The reel body 10 in which the semicylinder B and the semicylinder E are combined may be replaced with the semicylinder E and the semicylinder a for combination, so that the reel body may be applied to both flexible products 20 having different thicknesses and to winding of different curling radii. The requirements of curling and testing the flexible products 20 with the same curling radius and different thicknesses, the flexible products 20 with different radii and different thicknesses and the flexible products 20 with different radii and the same thickness can be realized by replacing part of the semi-cylinders of the reel body 10.
In the present embodiment, as shown in fig. 4 and 5, the curling device includes a central shaft 30, a first semi-cylinder 11 having a first arc-shaped slot 111 along the axial direction, and a second semi-cylinder 12 having a second arc-shaped slot 121 along the axial direction; the first arcuate slot 111 and the second arcuate slot 121 form a cavity 15 (see fig. 8) for receiving the central shaft 30. The winding device provided by the embodiment of the application can facilitate the winding of the reel body 10 around the central shaft 30 by arranging the central shaft 30, and determines the winding axis in the winding process. As shown in fig. 5, in the present embodiment, the first arc-shaped groove 111 is disposed along the axial direction of the first semi-cylinder 11 and penetrates through the first semi-cylinder 11, and the second arc-shaped groove 121 is disposed along the axial direction of the second semi-cylinder 12 and penetrates through the second semi-cylinder 12. Specifically, the central shaft 30 of the embodiment of the present application penetrates the cavity 15 along the axial direction of the first semi-cylinder 11 or the second semi-cylinder 12.
In an embodiment of the present application, as shown in fig. 4 to 6, the cavity 15 formed by the first arc-shaped groove 111 and the second arc-shaped groove 121 is a cylindrical cavity, the radius of the cylindrical cavity is equal to the radius of the central shaft 30, and the central shaft 30 can be completely clamped in the cylindrical cavity 15, so that the first semi-cylinder 11, the second semi-cylinder 12 and the central shaft 30 are tightly matched. The embodiment of the present application does not limit the fixing manner of the first semi-cylinder 11, the second semi-cylinder 12 and the central shaft 30, for example, an annular fixing member (not shown) matching with the reel body 10 may be disposed at two ends of the reel body 10 formed by combining the first semi-cylinder 11 and the second semi-cylinder 12, so as to fix the first semi-cylinder 11, the second semi-cylinder 12 and the central shaft 30, and the flexible product 20 does not touch the annular fixing member in the winding process; the first semi-cylinder 11, the second semi-cylinder 12 and the central shaft 30 may be fixed by a fixing means such as adhesion or welding.
In the embodiment of the present application, the axis of the central shaft 30 coincides with the axis of the first semi-cylinder 11 or the second semi-cylinder 12 with the smallest radius. Through the axis coincidence with the axis of center pin 30 and the semicircle of the minimum radius, can make when coiling by center pin 30, coil with the axis of the semicircle of the minimum radius for spool body 10 is at the inseparable winding in the surface of spool body 10 of flexible product 20 when coiling flexible product 20, can not appear twining the emergence of the not tight condition, makes closely laminating between two adjacent circles of flexible product 20.
In another embodiment of the present application, as shown in fig. 7 and 8, at least two connecting members 31 are disposed outside the central shaft 30, as shown in fig. 7, four connecting members 31 are disposed in the first arc-shaped groove 111, a first fitting member (not shown) is disposed in the second arc-shaped groove 121, and a second fitting member 122 is disposed in the second arc-shaped groove 121, and at least two connecting members 31 are respectively engaged with the first fitting member and the second fitting member 122 to fixedly connect the central shaft 30, the first semi-cylinder 11 and the second semi-cylinder 12. This application embodiment is through setting up two at least connecting pieces 31 with the center pin 30 outside, can make connecting piece 31 can cooperate with the first fitting piece in first arc wall 111, the cooperation of the second fitting piece 122 in the second arc wall 121 respectively to make center pin 30 and first semicylinder 11 and second semicylinder 12 fixed connection. In the embodiment of the present application, first arc wall 111, cavity 15 that second arc wall 121 constitutes can hold center pin 30 can, do not need center pin 30 and the laminating of the surface of first arc wall 111 and second arc wall 121, can be with center pin 30, first semicylinder 11 and second semicylinder 12 fixed connection, in the embodiment of the present application only need confirm that the radius more than or equal to center pin 30 of cavity 15 that first arc wall 111 and second arc wall 121 constitute can, make cavity 15 can hold center pin 30, make the combination of the first semicylinder 11 of different radii and the second semicylinder 12 of different radii of the embodiment of the present application convenient. In the embodiment of the present application, the connecting element 31 is a cylindrical element, and the first fitting element and the second fitting element 122 are both hole structures matched with the cylindrical element, and fixed connection is realized by matching the cylindrical element with the hole structures.
In the embodiment of the present application, as shown in fig. 9 and 10, the surface of the spool body 10 lower at the step surface 13 includes the adhesive surface 14. In the embodiment of the present application, by providing the adhesive surface 14 on the surface of the reel body 10 facing lower than the step surface 13, the starting end of the flexible product 20 can be fixed to the reel body 10 through the adhesive surface 14, so as to facilitate the curling of the flexible product 20. The end face of the flexible product 20 can be prevented from being fixed in the slit of the reel in a bending manner, extra stress exists at the clamping position, mechanical abrasion can be caused by too tight or too loose fixation, and in addition, the local position of the flexible product 20 is over-stressed due to the fact that the clamping position has a bending angle of nearly 90 degrees, and the service life of the flexible product 20 is influenced; the adhesive surface 14 is adopted to fix the starting end, so that mechanical abrasion can be avoided, bending stress at the clamping position can be avoided, the uniformity of the stress distribution of the flexible products 20 is provided, and the display uniformity and the service life of the flexible products 20 such as the flexible display panel are improved.
In one embodiment of the present application, as shown in FIG. 9, the adhesive surface 14 is part of the spool body 10; or as shown in fig. 10, the adhesive surface 14 is attached to the surface of the reel body 10 by an adhesive attachment layer, wherein the surface of the reel body 10 to which the adhesive attachment layer is attached can also be smoothly transited; or the thickness of the adhesive attachment layer is relatively thin, for example between 1 micrometer and 1 millimeter, so that the thickness of the adhesive attachment layer has a negligible effect on the attachment height of the flexible product 20; or the thickness of the adhesive layer can compensate the difference between the thickness of the flexible product and the thickness of the step surface, or the thickness of the adhesive layer can compensate the condition that the thickness of the starting end of the flexible product 20 is thinner than the thickness of the middle area of the flexible product 20, so that the curling device can reduce the additional stress of the starting end of the flexible product 20 caused by the thickness of the flexible product 20 during winding.
In the embodiment of the present application, the adhesive layer may be an easy-to-pull adhesive, and the easy-to-pull adhesive is deformed by pulling, i.e., loses the adhesive property to fix the starting end of the flexible product 20, so that when the flexible product 20 is taken down, the flexible product 20 may be taken down from the reel body 10 by pulling the flexible product 20 along the axial direction of the reel body 10.
The embodiment of the application also comprises a second technical scheme, and the curling testing device comprises the curling device. In the embodiment of the present application, the flexible product 20 can be repeatedly wound by the winding device to test the winding times of the flexible product 20, the winding test device of the embodiment of the present application can reduce the additional stress of the flexible product 20 caused by the thickness of the flexible product 20 at the starting end when winding, so that the winding test device approaches to the actual process of winding the flexible product 20 in the winding test process, the accuracy of the performance of the flexible product 20 tested by the winding test device is enhanced, and the reliability of the test evaluation is improved. When flexible product 20 of this application embodiment is flexible display panel, can reduce the terminal surface difference in height and cause curls testing arrangement test flexible display panel, and flexible display panel has the emergence of the condition of too much extra stress, improves the accuracy of the flexible display panel life-span test that curls.
The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.
Claims (10)
1. A crimping device for winding flexible products, comprising:
the reel comprises a reel body, wherein one part of the outer surface of the reel body comprises a step surface, the length direction of the step surface is parallel to the axial direction of the reel body, and the step surface is used for reducing the height difference of the joint of two adjacent rings of flexible products.
2. The crimping device of claim 1, wherein a thickness of the step face is equal to a thickness of the flexible product.
3. The crimping device according to claim 1, wherein a portion of one side of the stepped surface of the spool body is a first semi-cylinder, and a portion of the other side of the stepped surface of the spool body is a second semi-cylinder, and a tangent line of a side of the first semi-cylinder away from the stepped surface coincides with a tangent line of a side of the second semi-cylinder away from the stepped surface.
4. The crimping device of claim 3, wherein the difference in the diameters of the first and second semi-cylinders is equal to the thickness of the flexible product.
5. The crimping device of claim 3, wherein the first semi-cylinder and the second semi-cylinder are separately disposed.
6. The crimping device of claim 5, comprising a central shaft, wherein the first semi-cylinder is axially disposed with a first arcuate slot, and wherein the second semi-cylinder is axially disposed with a second arcuate slot; and a cavity formed by the first arc-shaped groove and the second arc-shaped groove is used for accommodating the central shaft.
7. The crimping device of claim 6, wherein an axis of the central shaft coincides with an axis of the first or second semi-cylinder having the smallest radius.
8. The crimping device of claim 6, wherein at least two connecting members are disposed outside the central shaft, a first mating member is disposed in the first arcuate slot, and a second mating member is disposed in the second arcuate slot, the at least two connecting members respectively engaging the first and second mating members to fixedly connect the central shaft, the first semi-cylinder and the second semi-cylinder.
9. The crimping device of claim 1, wherein a surface of the spool body lower at the step face comprises an adhesive surface.
10. A crimp testing device comprising a crimp device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011401430.6A CN112652241A (en) | 2020-12-02 | 2020-12-02 | Crimping device and crimping test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011401430.6A CN112652241A (en) | 2020-12-02 | 2020-12-02 | Crimping device and crimping test device |
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| Publication Number | Publication Date |
|---|---|
| CN112652241A true CN112652241A (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011401430.6A Pending CN112652241A (en) | 2020-12-02 | 2020-12-02 | Crimping device and crimping test device |
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| CN (1) | CN112652241A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113990204A (en) * | 2021-11-23 | 2022-01-28 | 合肥维信诺科技有限公司 | Curling mechanism and display device |
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| EP0577049A1 (en) * | 1992-06-29 | 1994-01-05 | Fuji Photo Film Co., Ltd. | Photographic film cassette, camera for use therewith and method of manufacturing the cassette |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113990204A (en) * | 2021-11-23 | 2022-01-28 | 合肥维信诺科技有限公司 | Curling mechanism and display device |
| CN113990204B (en) * | 2021-11-23 | 2023-12-19 | 合肥维信诺科技有限公司 | Crimping mechanism and display device |
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Application publication date: 20210413 |