CN112382202B - Profiling appliance and profiling device - Google Patents

Profiling appliance and profiling device Download PDF

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Publication number
CN112382202B
CN112382202B CN202011320156.XA CN202011320156A CN112382202B CN 112382202 B CN112382202 B CN 112382202B CN 202011320156 A CN202011320156 A CN 202011320156A CN 112382202 B CN112382202 B CN 112382202B
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region
area
profiling
display panel
flexible display
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CN112382202A (en
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颜子怡
张冰川
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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

Abstract

The invention provides a copying tool and a copying device, the copying tool at least comprises a first area, a second area and a third area, the bending areas of the first area and the third area respectively correspond to two areas to be bent of a flexible display panel, the second area is positioned between the first area and the third area, the total hardness of the copying tool of the first area is greater than that of the copying tool of the second area, and the total hardness of the copying tool of the third area is greater than that of the copying tool of the second area, therefore, in the process of jointing the flexible display panel and a curved glass cover plate, the deformation amount of the copying tool of the second area is greater than that of the copying tool of the first area and the third area, so that the force applied by the copying tool of the first area and the third area can be reduced, and further the tensile force borne by the two areas to be bent of the flexible display panel can be reduced, and then the problem that cracks appear in the two regions to be bent of the flexible display panel can be improved or avoided.

Description

Profiling appliance and profiling device
Technical Field
The invention relates to the technical field of display panel manufacturing, in particular to a copying device and a copying device.
Background
In the manufacturing process of the curved screen, the flexible display panel is placed on the curved copying device, the flexible display panel is extruded by the curved copying device, and the flexible display panel is attached to the curved glass cover plate, so that the copying of the flexible display panel and the manufacturing of the curved screen are completed. However, in the process of pressing the flexible display panel by using the curved surface copying tool, the flexible display panel is likely to have a crack or the like.
Disclosure of Invention
In view of the above, the present invention provides a profiling apparatus and a profiling device to solve the problem of cracking of a flexible display panel caused by profiling.
In order to achieve the purpose, the invention provides the following technical scheme:
a copying tool is used for assisting flexible display panel copying and at least comprises a first area, a second area and a third area, wherein bending areas of the first area and the third area respectively correspond to two areas to be bent of a flexible display panel, and the second area is located between the first area and the third area;
the total hardness of the profiling instruments of the first region is greater than the total hardness of the profiling instruments of the second region, and the total hardness of the profiling instruments of the third region is greater than the total hardness of the profiling instruments of the second region.
A profiling device comprising a base, a guide membrane and a profiling apparatus located between the base and the guide membrane;
the profiling means is as defined in any one of the preceding claims.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the copying tool and the copying device provided by the invention have the advantages that the copying tool at least comprises a first area, a second area and a third area, the bending areas of the first area and the third area respectively correspond to two areas to be bent of the flexible display panel, the second area is positioned between the first area and the third area, the total hardness of the copying tool in the first area is greater than that of the copying tool in the second area, and the total hardness of the copying tool in the third area is greater than that of the copying tool in the second area, so that the deformation amount of the copying tool in the second area is greater than that of the copying tool in the first area and the third area in the process of utilizing the copying tool to joint the flexible display panel and the curved glass cover plate, and the force applied by the copying tool in the first area and the third area can be reduced through the greater deformation amount of the copying tool in the second area, and then can reduce the pulling force that two of flexible display panel waited the bending region and born, and then can improve or avoid two of flexible display panel to wait the problem that the bending region cracked, and then can improve flexible display panel's laminating yield.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic top view of a profiling apparatus and a profiled flexible display panel thereof according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the profiling instrument and its profiled flexible display panel of FIG. 1 along cutting line AA';
FIG. 3 is a schematic top view of a profiling apparatus and a profiled flexible display panel thereof according to another embodiment of the present invention;
fig. 4 is a schematic cross-sectional structure view of the copying tool 1, the flexible display panel 2, and the curved glass cover 3 before bonding;
fig. 5 is a schematic cross-sectional structure view of the attached flexible display panel 2 and curved glass cover plate 3;
FIG. 6 is a schematic cross-sectional view of a profiling instrument provided in accordance with another embodiment of the invention;
FIG. 7 is a schematic cross-sectional view of a profiling instrument provided in accordance with another embodiment of the invention;
FIG. 8 is a schematic cross-sectional view of a profiling instrument provided in accordance with another embodiment of the invention;
FIG. 9 is a schematic cross-sectional view of a profiling instrument provided in accordance with another embodiment of the invention;
FIG. 10 is a schematic cross-sectional view of a profiling instrument provided in accordance with another embodiment of the invention;
FIG. 11 is a schematic cross-sectional view of a profiling instrument provided in accordance with another embodiment of the invention;
FIG. 12 is a schematic cross-sectional view of a profiling instrument provided in accordance with another embodiment of the invention;
fig. 13 is a graph showing a tensile force of an encapsulation layer of a flexible display panel when a copying tool 1 having a dual hardness according to an embodiment of the present invention and a copying tool having a single hardness according to the related art are used for copying;
FIG. 14 is a schematic structural view of a profiling device provided in accordance with one embodiment of the present invention;
fig. 15 is a schematic structural view of a profiling device provided in another embodiment of the invention.
Detailed Description
As in the background art, the flexible display panel is extruded by using a curved profiling device, which easily causes the problems of cracking and the like of the flexible display panel. The inventor researches and discovers that the reason for causing the problem is mainly that when the curved surface profiling device is too hard, and the flexible display panel is attached to the curved surface glass cover plate, the tensile force borne by the bending area or the curved surface area of the flexible display panel is large, so that the bending area or the curved surface area of the flexible display panel is easy to crack. However, if the hardness of the curved surface copying device is too low, bubbles are generated between the flexible display panel and the curved surface glass cover plate, and the flexible display panel and the curved surface glass cover plate cannot be completely bonded, so that the bonding yield is low.
Based on the above, the invention provides a profiling apparatus to overcome the above problems in the prior art, which at least comprises a first region, a second region and a third region, wherein the bending regions of the first region and the third region respectively correspond to two regions to be bent of a flexible display panel, and the second region is located between the first region and the third region;
the total hardness of the profiling instruments of the first region is greater than the total hardness of the profiling instruments of the second region, and the total hardness of the profiling instruments of the third region is greater than the total hardness of the profiling instruments of the second region.
Based on this, in the process of utilizing the profile modeling utensil to realize laminating of flexible display panel and curved surface glass apron, the deformation volume of the profile modeling utensil in second region can be greater than the deformation volume of the profile modeling utensil in first region and third region to can pass through the great deformation volume of the profile modeling utensil in second region, reduce the power that the profile modeling utensil in first region and third region was exerted, and then can reduce two of flexible display panel treat the pulling force that the bending region bore, and then can improve or avoid two of flexible display panel treat the problem that the bending region crackle appears, and then can improve flexible display panel's laminating yield.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the above is the core idea of the present invention, and the above objects, features and advantages of the present invention can be more clearly understood. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiments of the present invention provide a profiling apparatus for assisting in profiling a flexible display panel, as shown in figures 1 and 2, figure 1 is a schematic top view of a profiling apparatus and its profiled flexible display panel according to one embodiment of the present invention, figure 2 is a schematic cross-sectional view of the profiling instrument and its profiled flexible display panel of figure 1 along a cutting line AA', wherein the copying apparatus 1 at least comprises a first area A1, a second area A2 and a third area A3, the second area A2 is positioned between the first area A1 and the third area A3, the bending areas F1 and F2 of the first area A1 and the third area A3 respectively correspond to two areas to be bent R1 and R2 of the flexible display panel 2, that is, the bending region F1 of the first region a1 corresponds to the region to be bent R1 of the flexible display panel 2, and the bending region F2 of the third region A3 corresponds to the region to be bent R2 of the flexible display panel 2.
In the configuration shown in fig. 1, the first region a1, the second region a2, and the third region A3 are arranged in this order in the X direction which is the width direction of the copying tool 1, but the present invention is not limited to this, and in another embodiment, as shown in fig. 3, fig. 3 is a schematic plan view configuration view of the copying tool and the flexible display panel to be copied according to another embodiment of the present invention, and the first region a1, the second region a2, and the third region A3 are arranged in this order in the Y direction which is the length direction of the copying tool 1.
In the embodiment of the present invention, as shown in FIG. 4, FIG. 4 is a schematic sectional view showing the copying tool 1, the flexible display panel 2 and the curved glass cover plate 3 before bonding, in the process of attaching the flexible display panel 2 to the curved glass cover 3, the bending region F1 of the first region a1 applies force to the region R1 to be bent of the flexible display panel 2, the bending region F2 of the third region A3 applies force to the region R2 to be bent of the flexible display panel 2, the second region a2 applies force to the region R3 between the two regions R1 and R2 to be bent of the flexible display panel 2, so that the bending shape of the region to be bent R1 is the same as the bending shape of the bending region F1, and the bending shape of the region to be bent R2 is the same as the bending shape of the bending region F2, so that the flexible display panel 2 is tightly attached to the inner side of the curved glass cover plate 3, as shown in fig. 5, fig. 5 is a schematic cross-sectional structure diagram of the attached flexible display panel 2 and curved glass cover plate 3.
In some embodiments of the present invention, the surface of the profiling apparatus of the second region a2 close to the side of the flexible display panel 2 is a plane, and the bending regions F1 and F2 of the first region a1 and the third region A3 include curved surfaces, that is, as shown in fig. 5, after the flexible display panel 2 is attached to the curved glass cover plate 3, the bending shapes of the regions to be bent R1 and R2 are curved surfaces, and the region R3 between the regions to be bent R1 and R2 is a plane. Of course, the present invention is not limited to this, and in other embodiments, the shapes of the bending regions F1 and F2 of the first region a1 and the third region A3 may be designed according to the actual bending shape of the regions R1 and R2 to be bent, for example, when the regions R1 and R2 to be bent are 90 ° right-angled shapes, the shapes of the bending regions F1 and F2 of the first region a1 and the third region A3 are also 90 ° right-angled shapes.
As shown in fig. 1 to 4, the flexible display panel 2 needs to be attached to the guide film 4, and during the attaching process, the guide film 4 and the flexible display panel 2 need to be pulled down by a clamping jig along an arrow shown in fig. 4 to perform the profiling, and the shape of the flexible display panel 2 as the profiling target is the same as the shape of the profiling tool 1, wherein the profiling tool 1 functions as a supporting tool for the profiling.
In an embodiment of the invention, the total hardness of the copying implements of the first region a1 is greater than the total hardness of the copying implements of the second region a2, and the total hardness of the copying implements of the third region A3 is greater than the total hardness of the copying implements of the second region a2, based on which, in the process of utilizing the profiling device 1 to realize the jointing of the flexible display panel 2 and the curved glass cover plate 3, the amount of deformation of the copying instruments of the second region a2 will be greater than the amount of deformation of the copying instruments of the first and third regions a1 and A3, thus, the force exerted by the copying implements of the first region A1 and the third region A3 may be reduced by the greater amount of deformation of the copying implements of the second region A2, thereby reducing the tensile force borne by the two regions to be bent R1 and R2 of the flexible display panel 2, therefore, the problem that the two regions to be bent R1 and R2 of the flexible display panel 2 are cracked can be improved or avoided, and the bonding yield of the flexible display panel 2 can be improved.
In some embodiments of the present invention, the total hardness of the copying devices of the first area a1 is equal to the total hardness of the copying devices of the third area A3, and the first area a1 and the third area A3 are symmetrically arranged with respect to the second area a2, that is, the shapes of the bending areas F1 and F2 of the first area a1 and the third area A3 are the same, so that the forces applied to the two areas to be bent R1 and R2 of the flexible display panel 2 are the same, and the bending shapes of the two areas to be bent R1 and R2 of the flexible display panel 2 are the same. Of course, the present invention is not limited to this, and in other embodiments, when the flexible display panel 2 is a profile display panel, the shapes of the two regions to be bent R1 and R2 of the flexible display panel 2 are not symmetrical, and in this case, the total hardness of the copying devices in the first region a1 may not be equal to the total hardness of the copying devices in the third region A3, or the shapes of the bending regions F1 and F2 in the first region a1 and the third region A3 may be different.
It should be noted that in some embodiments of the present invention, as shown in fig. 2, the boundary between the first region a1 and the second region a2 is a straight line perpendicular to the bottom plane, and the boundary between the third region A3 and the second region a2 is a straight line perpendicular to the bottom plane, however, the present invention is not limited thereto, and in other embodiments, as shown in fig. 6, fig. 6 is a schematic cross-sectional structure of a profiling apparatus provided in another embodiment of the present invention, the boundary between the first region a1 and the second region a2 may be an oblique line, the boundary between the third region A3 and the second region a2 may be an oblique line, or, as shown in fig. 7 is a schematic cross-sectional structure of a profiling apparatus provided in another embodiment of the present invention, the boundary between the first region a1 and the second region a2 may be a curved line, the boundary between the third region A3 and the second region a2 may be a curved line, etc., and will not be described in detail herein.
It should be noted that, in fig. 2, 4, 6 and 7, the left and right sides or four sides of the profiling apparatus 1 are recessed towards the middle to reduce the volume of the profiling apparatus 1, save materials and facilitate profiling of the flexible display panel 2, however, the present invention is not limited thereto, and in other embodiments, as shown in fig. 8, fig. 8 is a schematic cross-sectional structure diagram of a profiling apparatus provided by another embodiment of the present invention, the left and right sides or four sides of the profiling apparatus 1 may not be recessed towards the middle to ensure the stability of the profiling apparatus 1.
In some embodiments of the invention, as shown in fig. 9, fig. 9 is a schematic cross-sectional view of a profiling instrument according to another embodiment of the invention, wherein the profiling instrument 1 comprises at least a first part 11 and a second part 12. Wherein the first portion 11 is located in the second region a2, the second portion 12 is located in the first region a1 and the third region A3, and the hardness of the second portion 12 is greater than the hardness of the first portion 11, such that the total hardness of the profiling means of the first region a1 and the third region A3 is greater than the total hardness of the profiling means of the second region a2, to reduce cracking of the regions R1 and R2 to be bent of the flexible display panel 2.
In some embodiments of the invention, the first region a1 and the second region A3 of the contoured implements, second portion 12, are integrally formed of the same durometer material, and the second region a2 of the contoured implements, first portion 11, are integrally formed of the same durometer material. Optionally, the material of both the first portion 11 and the second portion 12 is silicone rubber or silicone rubber. The silica gel or the silicone rubber has a Shore hardness range of 10-80, synthesis of the silica gel or the silicone rubber with various intermediate hardness values can be realized by mixing the polymer base material, the filler and the auxiliary agent in different proportions, in addition, the hardness of the silica gel or the silicone rubber can be changed by changing parameters such as heating and curing time and temperature, and other physical characteristics can not be damaged while the hardness is changed.
In some embodiments of the present invention, the hardness of the second portion 12 is in the range of 40-45 and the hardness of the first portion 11 is in the range of 20-25. Of course, the present invention is not limited to this, and in other embodiments, the hardness of the second portion 12 and the first portion 11 can be adjusted according to actual needs. In addition, in other embodiments of the present invention, materials other than silicone or silicon rubber may be used to form the second portion 12 and/or the first portion 11.
In some embodiments of the present invention, as shown in fig. 9, the copying apparatus 1 includes a first side S1 and a second side S2 opposite to each other, the first side S1 is a side close to the flexible display panel 2, a width L1 of the first portion 11 of the first side S2 in the first direction X is equal to a width L2 of the first portion 11 of the second side S2 in the first direction X, and the first direction X is an arrangement direction of the first region a1, the second region a2 and the third region A3, so that the forces applied to the first side S1 and the second side S2 opposite to each other of the first portion 11 are the same, and the copying apparatus 1 is more stable.
Of course, the present invention is not limited thereto, and as shown in fig. 10, fig. 10 is a schematic cross-sectional structure view of a profiling apparatus according to another embodiment of the present invention, wherein a width L1 of the first portion 11 of the first side S2 in the first direction X is greater than a width L2 of the first portion 11 of the second side S2 in the first direction X.
Since the width L1 of the first portion 11 of the first side S2 in the first direction X is large, the amount of deformation of the copying tool of the second region a2 can be further increased, so that the force applied by the copying tool of the first region a1 and the third region A3 can be further reduced, and the problem of cracking of the two regions to be bent R1 and R2 of the flexible display panel 2 can be further improved or avoided. Because the width L2 of the first portion 11 of the second side S2 in the first direction X is small, the stiffer second portion 12 provides most of the support force of the profiling apparatus 1 to ensure the stability of the bottom of the profiling apparatus 1, i.e. the second side S2.
On the basis of the above embodiments, in some embodiments of the invention, as shown in fig. 10, the first side S1 points in the direction of the second side S2, and the width of the first portion 11 in the first direction X is gradually reduced to further ensure the stability of the copying apparatus 1 while further increasing the deformation amount of the copying apparatus in the second area a 2. Of course, the present invention is not limited to this, and in other embodiments, the interface between the first portion 11 and the second portion 12 may also be a curved surface as shown in fig. 7, and the description thereof is omitted here.
In other embodiments of the present invention, as shown in fig. 11 and 12, fig. 11 is a schematic cross-sectional structure of a copying tool according to another embodiment of the present invention, fig. 12 is a schematic cross-sectional structure of a copying tool according to another embodiment of the present invention, and the copying tool 1 comprises at least a first portion 13 and a second portion 14, wherein the second portion 14 is located on a side of the first portion 13 facing away from the flexible display panel 2, the first portion 13 is located at least in a second region a2, the second portion 14 is located in a first region a1, a second region a2 and a third region A3, and the hardness of the first portion 13 is less than that of the second portion 14.
Since the less stiff first part 13 is only located at the top of the profiling apparatus 1 and the more stiff second part 14 is located at the bottom of the profiling apparatus 1, the stability of the bottom of the profiling apparatus 1 can be ensured while increasing the amount of deformation of the profiling apparatus of the second area a2, improving or avoiding the problem of cracking of the two regions R1 and R2 of the flexible display panel 2 to be bent.
In some embodiments of the invention, as shown in fig. 11, the first portion 13 is located only in the second region a2, the combined hardness of the first and second portions 13, 14 of the second region a2 being less than the hardness of the second portion 14 of the first region a1, such that the combined hardness of the copying instrument 1 of the second region a2 is less than the combined hardness of the copying instrument 1 of the first region a1, and the combined hardness of the first and second portions 13, 14 of the second region a2 is less than the hardness of the second portion 14 of the third region A3, such that the combined hardness of the copying instrument 1 of the second region a2 is less than the combined hardness of the copying instrument 1 of the third region A3.
Of course, the invention is not so limited and in other embodiments, as shown in fig. 12, the first portion 13 is located in the first region a1, the second region a2 and the third region A3, and the total hardness of the first portion 13 and the second portion 14 of the second region a2 is less than the total hardness of the first portion 13 and the second portion 14 of the first region a1, such that the total hardness of the contoured appliances 1 of the second region a2 is less than the total hardness of the contoured appliances 1 of the first region a1, and the total hardness of the first portion 13 and the second portion 14 of the second region a2 is less than the total hardness of the first portion 13 and the second portion 14 of the third region A3, such that the total hardness of the contoured appliances 1 of the second region a2 is less than the total hardness of the contoured appliances 1 of the third region A3.
In some embodiments of the present invention, as shown in fig. 12, in the direction perpendicular to the plane of the flexible display panel 2, i.e. the Y direction, the height L3 of the first portion 13 of the second region a2 is greater than the height L4 of the first portion 13 of the first region a1, and the height L5 of the second portion 14 of the second region a2 is less than the height L6 of the second portion 14 of the first region a1, so that the total hardness of the first portion 13 and the second portion 14 of the second region a2 is less than the total hardness of the first portion 13 and the second portion 14 of the first region a1, and the total hardness of the copying tool 1 of the second region a2 is less than the total hardness of the copying tool 1 of the first region a 1.
In the direction perpendicular to the plane of the flexible display panel 2, i.e. the Y direction, the height L3 of the first portion 13 of the second region a2 is greater than the height L4 of the first portion 13 of the third region A3, the height L5 of the second portion 14 of the second region a2 is less than the height L6 of the second portion 14 of the third region A3, so that the total stiffness of the first portion 13 and the second portion 14 of the second region a2 is less than the total stiffness of the first portion 13 and the second portion 14 of the third region A3, and the total stiffness of the profile shaped implement 1 of the second region a2 is less than the total stiffness of the profile shaped implement 1 of the third region A3.
In the structure shown in fig. 11 and 12, the interface between the first portion 13 and the second portion 14 is a curved surface, but the present invention is not limited thereto, and in other embodiments, the interface between the first portion 13 and the second portion 14 may also be a flat surface, etc., and thus, the description thereof is not repeated.
In some embodiments of the invention, the first region a1 and the second region A3 of the contouring means, i.e., second portion 14, are integrally formed of the same durometer material, and the second region a2 of the contouring means, i.e., first portion 13, are integrally formed of the same durometer material. Optionally, the material of both the first portion 13 and the second portion 14 is silicone rubber or silicone rubber. The silica gel or the silicone rubber has a Shore hardness range of 10-80, synthesis of the silica gel or the silicone rubber with various intermediate hardness values can be realized by mixing the polymer base material, the filler and the auxiliary agent in different proportions, in addition, the hardness of the silica gel or the silicone rubber can be changed by changing parameters such as heating and curing time and temperature, and other physical characteristics can not be damaged while the hardness is changed.
In some embodiments of the present invention, the hardness of the second portion 14 is in the range of 40 to 45 and the hardness of the first portion 13 is in the range of 20 to 25. Of course, the present invention is not limited to this, and in other embodiments, the hardness of the second portion 14 and the first portion 13 can be adjusted according to actual needs. In addition, in other embodiments of the present invention, materials other than silicone or silicon rubber may be used to form the second portion 14 and/or the first portion 13.
Since the flexible display panel 2 mainly has cracks from the encapsulation layer to the touch layer, the pulling force of the encapsulation layer is simulated by using the profiling device 1 with dual hardness provided by the embodiment of the present invention and the profiling device with single hardness in the prior art, as shown in fig. 13, when the profiling is performed by using the profiling device 1 with dual hardness provided by the embodiment of the present invention and the profiling device with single hardness in the prior art, the pulling force curve of the encapsulation layer is shown, and the smaller the pulling stress is, the lower the possibility of cracks is. As can be seen from fig. 13, when the copying tool 1 having double hardness according to the embodiment of the present invention is used for copying, the tensile force of the encapsulating layer is small.
An embodiment of the invention also provides a profiling device, as shown in fig. 14, fig. 14 is a schematic structural diagram of a profiling device provided by an embodiment of the invention, the profiling device comprises a base 5, a guide film 4 and a profiling instrument 1, wherein the profiling instrument 1 is positioned between the base 5 and the guide film 4, and the profiling instrument 1 is the profiling instrument provided by any one of the above embodiments.
It should be noted that the process of profiling the flexible display panel by using the profiling device is shown in fig. 4 and 5, and will not be described herein again. In some embodiments of the present invention, as shown in fig. 15, fig. 15 is a schematic structural diagram of a profiling apparatus according to another embodiment of the present invention, which further includes a clamping jig 6 for moving the guide film 4 and the flexible display panel carried by the guide film downward for profiling.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A copying tool is used for assisting flexible display panel copying and is characterized by at least comprising a first area, a second area and a third area, wherein bending areas of the first area and the third area respectively correspond to two areas to be bent of a flexible display panel, and the second area is positioned between the first area and the third area;
the total hardness of the profiling instruments of the first region is greater than the total hardness of the profiling instruments of the second region, and the total hardness of the profiling instruments of the third region is greater than the total hardness of the profiling instruments of the second region;
the profiling instrument comprises at least a first portion and a second portion; the second portion is located on a side of the first portion facing away from the flexible display panel; the first portion is located at least in the second region, the second portion being located in the first region, the second region, and the third region; the first portion has a hardness less than the hardness of the second portion;
the first portion is located in the first region, the second region, and the third region;
in a direction perpendicular to the plane of the flexible display panel, the height of the first part of the second area is greater than that of the first part of the first area, and the height of the second part of the second area is less than that of the second part of the first area, so that the total hardness of the first part and the second part of the second area is less than that of the first part and the second part of the first area; in a direction perpendicular to the plane of the flexible display panel, the height of the first part of the second area is greater than that of the first part of the third area, and the height of the second part of the second area is less than that of the second part of the third area, so that the total hardness of the first part and the second part of the second area is less than that of the first part and the second part of the third area.
2. The profiling instrument of claim 1, wherein the profiling instrument comprises at least a first portion and a second portion;
the first portion is located in the second region, and the second portion is located in the first region and the third region; the hardness of the second portion is greater than the hardness of the first portion such that the total hardness of the profiling means of the first and third regions is greater than the total hardness of the profiling means of the second region.
3. The profiling instrument according to claim 2, wherein the profiling instrument comprises opposing first and second sides, the first side being the side proximate the flexible display panel;
the width of the first portion of the first side in a first direction is equal to or greater than the width of the first portion of the second side in the first direction, and the first direction is an arrangement direction of the first region, the second region, and the third region.
4. The profiling instrument of claim 3 wherein the first portion tapers in width in the first direction in a direction in which the first side is directed toward the second side.
5. The profiling instrument of claim 2 wherein the material of both the first portion and the second portion comprises silicone;
the hardness range of the second part is 40-45, and the hardness range of the first part is 20-25.
6. The profiling fixture according to claim 1, wherein the surface of the profiling fixture of the second region on the side close to the flexible display panel is a plane surface, and the bending regions of the first region and the third region comprise curved surfaces.
7. A profiling device comprising a base, a guide membrane and a profiling apparatus located between the base and the guide membrane;
the copying tool as claimed in any one of claims 1 to 6.
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