CN115862465A - Flexible screen bending equipment and flexible screen bending process - Google Patents

Abstract

The application provides flexible screen equipment of buckling and flexible screen technology of buckling, flexible screen includes interconnect's first portion and second portion, the first portion forms the display area of flexible screen, the second portion is bent, the second portion is kept away from the one end of first portion is connected with flexible circuit board, flexible screen equipment of buckling includes: a securing mechanism for carrying and securing the first part; the turnover mechanism is connected to the flexible circuit board and can drive the flexible circuit board to turn around the first part; a contoured support having at least a portion of an outer surface configured as a contoured surface, the contoured surface contoured to the second portion. The flexible screen terminal can be bent as far as possible according to a preset track, and the possibility of damage such as cracks on the terminal is reduced.

Description

Flexible screen bending equipment and flexible screen bending process

Technical Field

The application relates to the technical field of display screens, in particular to flexible screen bending equipment and a flexible screen bending process.

Background

With the continuous development of display technologies, display products (such as mobile phone screens) usually adopt a narrow frame design to achieve the purpose of enlarging a display area. In order to achieve the design goal of the narrow frame of the display product, the terminal part of the flexible screen is usually bent; namely, the bending of the terminal part is a technology key point process for realizing the design of the narrow frame of the display product. The terminal position of the flexible screen refers to an area where a terminal is arranged on the flexible screen, and the terminal arranged on the flexible screen is used for being electrically connected with the driving IC.

Under the usual condition, the terminal position bending process of flexible screen mainly fixes the one end at terminal position through fixed establishment, fix the other end at terminal position through tilting mechanism, then along with the bending of tilting mechanism's upset action realization screen terminal position, nevertheless because the whole motion that relies on tilting mechanism self of the process of whole upset carries out the position location, it is inhomogeneous to lead to whole district's atress of buckling, make the screen body be difficult to bend according to predetermined orbit, thereby make the screen body damage such as crackle appear easily.

Disclosure of Invention

The application provides a flexible screen equipment of buckling and flexible screen technology of buckling to make the terminal position of flexible screen bend according to predetermined orbit as far as possible, reduce the terminal position and appear the possibility of damage such as crackle.

This application first aspect provides a flexible screen equipment of buckling, the flexible screen includes interconnect's first portion and second part, the first portion forms the display area of flexible screen, the second part is bent, the second part is kept away from the one end of first portion is connected with flexible circuit board, flexible screen equipment of buckling includes: a securing mechanism for carrying and securing the first part; the turnover mechanism is connected to the flexible circuit board and can drive the flexible circuit board to turn around the first part; and at least part of the outer surface of the profile supporting piece is provided with a profile curved surface, and when the turnover mechanism drives the flexible circuit board to turn around the first part, the profile curved surface is in contact with the second part.

The flexible screen bending equipment comprises a fixing mechanism, a turnover mechanism and a profiling supporting piece, wherein the fixing mechanism is used for bearing and fixing the first part; the turnover mechanism is connected with the flexible circuit board and can drive the flexible circuit board to turn around the first part; at least part of the outer surface of the profiling support piece is provided with a profiling curved surface, and when the turnover mechanism drives the flexible circuit board to turn around the first part, the profiling curved surface is contacted with the second part; the profiling curved surface plays a role in guiding and supporting the inner side of the second part, so that the possibility of damage such as cracks of the second part in the bending process is reduced.

Optionally, the curved surface is curved to form a smooth surface, so that the curved surface can continuously and stably support and guide the terminal part, and prevent the terminal part from being scratched by a sharp structure generated by sudden change of the surface structure of the curved surface.

Optionally, the radian of the curved surface is not less than 145 °, so that the curved surface can continuously and smoothly support and guide the second portion in a wide range, thereby ensuring that the second portion can be bent according to a predetermined bending track.

Optionally, the bending radius of the second portion is R, the radius of the profiling curved surface is R, and R should satisfy the following relationship: r/2 is more than or equal to R and less than or equal to 2R, so that the profiling curve plays a reliable supporting and guiding role on the second part, and the risk of damage such as fracture and the like of the second part is reduced.

Optionally, the profiling support comprises a first region and a second region which are spliced with each other, and the profiling curved surface is arranged on one side of the first region, which is far away from the second region; the first area mainly plays a role in profile modeling support, and the profile modeling curved surface is arranged on one side, far away from the second area, of the first area, so that the profile modeling curved surface can be positioned in an area surrounded by the second part, and the profile modeling curved surface can play a role in supporting and guiding the second part on the inner side of the second part; the second region may assist in mounting, securing and positioning, so that the profile support can be accurately positioned at a predetermined location and removed in accordance with a predetermined trajectory.

Optionally, the first region and the second region are spliced together to form a circular structure, so that the structure of the profiling support member is simplified, and any part of the profiling support member can be used as a profiling curved surface, so that the profiling support member does not need to be installed and fixed in a specific direction, and the process requirement is reduced.

Optionally, the first region is provided as an arch and the second region is connected at a straight edge of the arch.

Optionally, the second area is configured to be an isosceles triangle, and the straight edge of the arch forms the bottom edge of the isosceles triangle, that is, the cross section of the profiling support member is wedge-shaped, the isosceles triangle can form high positioning accuracy, and by generating a wedging force between the isosceles triangle and the mounting groove provided on the device itself, the mounting reliability of the profiling support member can be increased, and the profiling support member can be prevented from loosening or falling off.

Optionally, the second region is provided as a rectangular structure, the straight edges of the arch forming one side of the rectangular structure to increase the area of the second region and thereby increase the structural strength of the contoured support.

Optionally, the arc of the arch is greater than 180 °, and the width of the rectangular structure is less than the maximum width of the first region.

Optionally, the arc of the arch is no more than 180 °, and the width of the rectangular structure is the same as the maximum width of the first region.

Optionally, a back film is arranged on each of the back surface of the first portion and the back surface of the second portion, the back film of the first portion and the back film of the second portion are not continuous to form a slotted region, the profiling support member is accommodated in the slotted region, and the second portion is bent in the slotted region, so that the flexible screen has good bending performance, and the possibility of cracks occurring in the bending process is reduced.

The utility model provides a flexible screen technology of buckling, flexible screen includes interconnect's first portion and second portion, the first portion forms the display area of flexible screen, the second portion is bent, the second portion is kept away from the one end of first portion is connected with flexible circuit board the in-process of bending of second portion has at least a period, the second position is bent along profile modeling support piece, plays direction and supporting role in the inboard of second portion through the profile modeling curved surface, reduces the possibility that damages such as crackle appear in the in-process second portion of buckling.

Optionally, the flexible screen bending process includes: step S1: connecting the first part to a fixing mechanism, connecting the flexible circuit board to a turnover mechanism, moving a profiling support between the fixing mechanism and the turnover mechanism, and enabling the profiling curved surface of the profiling support to be tangent to the second part; step S2: operating the turnover mechanism to act, wherein the turnover mechanism drives the flexible circuit board to turn around the first part, and the second part is bent along the profiling support piece; and step S3: when the turnover mechanism moves to the first position, the profiling support is removed, and the turnover mechanism continues to rotate to the second position.

Optionally, in the step S3, the first position is an area where an included angle between the flexible circuit board and the first portion is 5 ° to 35 °, and the first position can not only fully exert a supporting and guiding effect of the profiling supporting member on the second portion, but also enable the profiling supporting member to be removed smoothly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Fig. 1 is a schematic structural view of a COF package;

FIG. 2 is a schematic diagram of a COP package;

fig. 3 is a schematic structural diagram of a second portion of a flexible screen provided in an embodiment of the present application before bending;

FIG. 4 is a schematic structural view of the working state of the profiling support when the second portion of the flexible screen is bent according to the embodiment of the present application;

FIG. 5 is a schematic view of the flexible screen of an embodiment of the present application showing a profile support member removed when the second portion is bent;

fig. 6 is a schematic structural diagram of a second portion of a flexible screen provided in an embodiment of the present application after bending is completed;

FIG. 7 is a perspective view of a profile support provided in accordance with an embodiment of the present application;

FIG. 8 is a cross-sectional structural schematic view of a first type of profiling support provided by an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a second type of support member provided by embodiments of the present application;

FIG. 10 is a schematic cross-sectional view of a third type of profiling support provided by an embodiment of the present application;

FIG. 11 is a cross-sectional structural schematic view of a fourth profiling support provided by an embodiment of the present application.

Reference numerals:

100-screen;

1-a first part;

10-a support assembly;

12-a screen cover plate;

14-a backing film;

16-a polarizer;

2-a second part;

20-a grooved area;

22-a chip;

3-a flexible circuit board;

4-a fixing mechanism;

5-turning over mechanism;

6-a contoured support;

60-a contoured surface;

62-a first region;

64-a second region;

7-viscose glue.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

In one embodiment, the present application is described in further detail by the following embodiments with reference to the accompanying drawings.

With the continuous development of communication science and technology, the mobile phone screen is made larger and larger to meet the market demand, the frame is narrower and narrower, a full-screen mobile phone which pursues a screen occupation ratio close to 100% becomes a worldwide mainstream trend, the key for realizing the full-screen is the packaging technology adopted by the mobile phone screen, and the packaging technology of the mobile phone screen at present mainly takes COF and COP as main materials.

The COF is called Chip On Film in English, and is a crystal grain soft Film packaging technology for fixing a Chip (IC) On a flexible circuit board. Referring to fig. 1, the screen 100 of the COF packaging process is not bent, the chip 22 is bound on the flexible circuit board 3, and the flexible circuit board 3 is bent, so that the occupation of the glass substrate is reduced, the COF can reduce the black edge area to about 1.5mm, and the terminal bit length is reduced.

The COP is called Chip On Pi in english, is a brand new screen packaging process, and can be regarded as a perfect packaging scheme specially customized for a flexible OLED screen. Referring to fig. 2, the cop packaging process is to directly bend a portion of the screen 100 and integrate the flexible circuit board 3 and the chip 22 under the screen 100, thereby preventing a black border region from being generated at the edge of the screen and increasing a display area.

In COF and COP packaging processes, bending processes exist, and the embodiment of the application provides flexible screen bending equipment and a flexible screen bending process, which can be suitable for COF packaging and COP packaging and can also be suitable for a process of laminating protective films in the display field. In the embodiments of the present application, a COP package is taken as an example for detailed description.

As shown in fig. 3 to 6, the present application provides a flexible screen bending apparatus, which is configured to bend a second portion 2 of a flexible screen according to a predetermined trajectory, so as to reduce a black edge area at an edge of the screen and improve a screen occupation ratio.

In particular, the flexible screen comprises a first portion 1 and a second portion 2 connected to each other. The first part 1 forms a display area of the flexible display screen, a back film 14 and a support assembly 10 can be sequentially arranged on the back surface of the first part 1, the back film 14 plays a role in protecting the flexible screen, and the support assembly 10 plays a role in supporting the flexible screen; the front of the first part 1 can be provided with a polaroid 16 and a screen cover plate 12 in sequence, the polaroid 16 and the screen cover plate 12 can be connected through glue layers such as OCA (optical clear adhesive) and the like, and the screen cover plate 12 forms a protective layer of the flexible screen, so that the shock resistance of the flexible screen is improved. The second part 2 forms a terminal part of the flexible display screen, a back film 14 can be arranged on the back surface of the second part 2, the back film 14 of the second part 2 and the back film 14 of the first part 1 are discontinuous to form a slotted region 20, and the second part 2 is bent in the slotted region 20, so that the flexible display screen keeps good bending performance, and the risk of damage such as breakage and the like of the second part 2 in the bending process is reduced; the front side of the second portion 2 may be provided with a chip 22, the chip 22 being arranged opposite the backing film 14, that is, the chip 22 is arranged in the second portion 2 except for the notch region 20; the front surface of the second part 2 can be further connected with a flexible circuit board 3, the flexible circuit board 3 is connected to one end of the second part 2 far away from the first part 1, and the second part 2 is used for realizing the electrical connection between the first part 1 and the flexible circuit board 3. When the second portion 2 is bent by 180 °, a part of the second portion 2 can be stacked on the back of the first portion 1 and fixed to the back of the first portion 1 by an adhesive 7 (e.g. a double-sided tape, etc.), specifically, the adhesive 7 is disposed opposite to the slotted region 20, two sides of the adhesive 7 are respectively adhered to the support member 10 of the first portion 1 and the back film 14 of the second portion 2, and the open side of the second portion 2 is closed by the adhesive 7.

Further, the flexible screen bending device comprises a fixing mechanism 4, a flipping mechanism 5 and a profiling support 6. The fixing mechanism 4 is used for carrying and fixing the first part 1, for example, the first part 1 can be fixed to the fixing mechanism 4 by means of negative pressure adsorption, so as to prevent the surface of the first part 1 from being damaged; the turnover mechanism 5 is connected to the flexible circuit board 3, for example, the flexible circuit board 3 can be fixed to the turnover mechanism 5 in a negative pressure adsorption manner, and the turnover mechanism 5 can drive the flexible circuit board 3 to turn over around the first portion 1; the profiling support piece 6 is accommodated in the slotted area 20, at least part of the outer surface of the profiling support piece 6 is provided with a profiling curved surface 60, when the turnover mechanism 5 drives the flexible circuit board 3 to turn around the first part 1, the profiling curved surface 60 is in contact with the second part 2, the profiling curved surface 60 plays a role in guiding and supporting the inner side of the second part 2, and the possibility of damage such as cracks on the second part 2 in the bending process is reduced.

With continued reference to fig. 3 to fig. 6, an embodiment of the present application further provides a flexible screen bending process, which is suitable for the flexible screen bending apparatus provided in the embodiment of the present application, and the flexible screen bending process includes: during the bending of the second part 2, the second part 2 is bent along the contoured surface 60 at least for a while.

Further, the flexible screen bending process specifically comprises the following steps: step S1: connecting the first portion 1 to the fixing mechanism 4, connecting the flexible circuit board 3 to the turnover mechanism 5, moving the profile support 6 between the fixing mechanism 4 and the turnover mechanism 5, so that the profile curved surface 60 of the profile support 6 is tangent to the second portion 2 (refer to fig. 3); step S2: operating the turnover mechanism 5 to act, wherein the turnover mechanism 5 drives the flexible circuit board 3 to turn around the first part 1, and the second part 2 bends along the profiling support 6 (refer to fig. 4); and step S3: when the turning mechanism 5 is moved into the first position, the profile support 6 is removed (cf. Fig. 5) and the turning mechanism 5 continues to rotate into the second position (cf. Fig. 6).

Further, in step S3, the first position is a position where an included angle α between the flexible circuit board 3 and the first portion 1 is 5 ° to 35 °; the second position is a position where the angle α between the flexible circuit board 3 and the first portion 1 is 0 °. Specifically, before the turning mechanism 5 acts, the included angle α between the flexible circuit board 3 and the first portion 1 is 180 °; along with the gradual overturning of the overturning mechanism 5 around the first part 1, the included angle alpha between the flexible circuit board 3 and the first part 1 is gradually reduced; and when the included angle alpha between the flexible circuit board 3 and the first part 1 is reduced to 0 degree, the turnover mechanism 5 stops turnover, and the flexible circuit board 3 is fixed on the back of the first part 1 through the viscose 7.

Specifically, at the first position, the included angle α between the flexible circuit board 3 and the first portion 1 may be 5 °, 6 °, 7 °, 8 °, 9 °, 10 °, 11 °, 12 °, 13 °, 14 °, 15 °, 16 °, 17 °, 18 °, 19 °, 20 °, 21 °, 22 °, 23 °, 24 °, 25 °, 26 °, 27 °, 28 °, 29 °, 30 °, 31 °, 32 °, 33 °, 34 °, or 35 °, and in this region, the supporting and guiding function of the profiling support 6 on the second portion 2 can be fully exerted, and the profiling support 6 can be smoothly removed. When the included angle alpha between the flexible circuit board 3 and the first part 1 is smaller than 5 degrees, the opening between the flexible circuit board 3 and the first part 1 is too small, so that the profiling support piece 6 is difficult to smoothly remove, or the profiling support piece 6 is easy to collide with the flexible circuit board 3 or the first part 1 when being removed, so that the second part 2 is pulled, and the second part 2 is easy to crack and the like; when the angle α between the flexible circuit board 3 and the first portion 1 is greater than 35 °, the opening of the second portion 2 is large and the profile support 6 is removed prematurely, so that the support and guide area of the second portion 2 by the profile support 6 is too small, that is to say, after removal of the profile support 6, the second portion 2 still needs to be bent over a large angle and is still susceptible to damage such as cracking.

The profiling support piece 6 can be slidably connected to a rack of the flexible screen bending device, the profiling support piece 6 can reciprocate between a third position and a fourth position, and the motion track of the profiling support piece 6 can be in any appropriate shape such as a straight line or an arc line. When the profile support 6 is moved to the third position, the profile support 6 is in an operating state, that is, at least a part of the profile support 6 is located within the area surrounded by the bending track of the second portion 2, and the profile support 6 can support and guide the second portion 2 along with the bending of the second portion 2; when the profiling support 6 is moved to the fourth position, the profiling support 6 is in a removed state, that is, the profiling support 6 is completely outside the area enclosed by the bending trajectory of the second portion 2, avoiding the profiling support 6 from affecting the adhesive fixation of the flexible circuit board 3 to the first portion 1.

Further, referring to fig. 7, the profile support 6 may be provided in a rod-like configuration, and the length of the profile support 6 should be no less than the width of the flexible screen, so that the profile support 6 provides uniform support across the width of the flexible screen, improving the uniformity of the force applied to the second portion 2.

The profiling support piece 6 can be set to be a solid structure or a hollow structure, preferably, the profiling support piece 6 is set to be a solid structure, so that the structural strength of the profiling support piece 6 can be increased, the profiling support piece 6 is prevented from being damaged by deformation and the like, the processing technology of the profiling support piece 6 can be simplified, and the production cost is reduced.

Further, the curved surface 60 is curved to form a smooth surface on the curved surface 60, so that the curved surface 60 can support and guide the second part 2 continuously and smoothly, and the second part 2 is prevented from being scratched by a sharp structure generated by sudden change of the surface structure of the curved surface 60.

Further, the curvature of the curved surface 60 is not less than 145 °, for example, the curvature of the curved surface 60 may be 145 °, 150 °, 155 °, 160 °, 175 °, or 180 °, so that the curved surface 60 can continuously and smoothly support and guide the second portion 2 in a wide range, that is, when the second portion 2 is bent along the curved surface 60, only the curved surface 60 on the support 6 can contact the second portion 2, and no region of the support 6 other than the curved surface 60 can contact the second portion 2, so that the second portion 2 can be bent according to the shape of the curved surface 60, thereby ensuring that the second portion 2 can be bent according to the predetermined bending track.

Further, the center of the arc surface of the curved surface 60 coincides with the bending center of the second portion 2, so that the contact force between the second portion 2 and the curved surface 60 is kept uniform, the guiding and supporting effect of the curved surface 60 on the second portion 2 is softer, and the second portion 2 is prevented from being damaged by breakage and the like due to an excessive pulling effect of the curved surface 60 on the second portion 2.

Further, the bending radius of the second portion 2 is R, the radius of the curved surface 60 is R, and R should satisfy the following relationship: r/2 is more than or equal to R and less than or equal to 2R, so that the profiling curved surface 60 plays a reliable supporting and guiding role on the second part 2, and the risk of damage such as fracture and the like of the second part 2 is reduced. When R is smaller than R/2, the radius of the contoured surface 60 is too small, resulting in a larger gap between the contoured surface 60 and the second portion 20, thereby losing the supporting and guiding function of the contoured surface 60; when R is greater than 2R, the radius of the curved profiling surface 60 is too large, so that the bending radius of the second part 20 is much larger than the predetermined bending radius, and the second part 20 and the curved profiling surface 60 are squeezed with each other, so that a large pulling effect is generated on the second part 20, and the second part 20 is easily damaged by fracture and the like.

As shown in fig. 8-11, the cross-section of the profile support 6 comprises a first region 62 and a second region 64, which are spliced to each other, the first region 62 being at least partially located inside the area enclosed by the second portion 2, the second region 64 being located at the open side of the second portion 2, the second region 64 being at least partially located outside the area enclosed by the second portion 2; the first region 62 mainly plays a role of profile support, and the profile curved surface 60 is arranged on one side of the first region 62 far away from the second region 64, so that the profile curved surface 60 can be positioned in the region surrounded by the second part 2, and the profile curved surface 60 can play a role of supporting and guiding the second part 2 at the inner side of the second part 2; the second region 64 may assist in mounting, securing and positioning, so that the profile support 6 can be accurately positioned at a predetermined location and removed in accordance with a predetermined trajectory.

In some embodiments, referring to fig. 8, the first region 62 and the second region 64 are jointly spliced to form a circular structure, that is, the cross-section of the profile support 6 is circular, so as to simplify the structure of the profile support 6 and enable any portion of the profile support 6 to be used as the profile curved surface 60, thereby eliminating the need to mount and fix the profile support 6 in a specific direction and reducing the process requirements.

In other embodiments, referring to fig. 9-11, first region 62 is provided as an arch and second region 64 is connected at straight edges of the arch. Specifically, the first region 62 is defined by an arcuate edge and a flat edge, the two ends of the flat edge are connected to the two ends of the arcuate edge, respectively, and the arcuate edge of the first region 62 forms the contoured surface 60 described above, and the second region 64 is connected to the flat edge of the first region 62.

In one embodiment, referring to fig. 9, the second region 64 is configured as an isosceles triangle, the straight edge of the arch forms the base of the isosceles triangle, that is, the cross section of the contoured support 6 is wedge-shaped, the isosceles triangle can form a high positioning accuracy, and the reliability of the installation of the contoured support 6 can be increased by the wedge force generated between the isosceles triangle and the installation slot provided on the device itself, preventing the contoured support 6 from loosening or falling off.

In another embodiment, referring to figures 10 and 11, the second region 64 is provided in a rectangular configuration, with the straight edges of the arcuate configuration forming one side of the rectangular configuration to increase the area of the second region 64 and thereby increase the structural strength of the contoured support 6. Wherein the arc of the arcuate configuration may be greater than 180 deg. and the width of the rectangular configuration is less than the maximum width of the first region 62, that is, the cross-section of the profile support 6 may be arranged to be drop-shaped, avoiding contact of the second region 64 with the second portion 2 (see figure 10). The arc of the arcuate configuration may be no more than 180 deg., and the width of the rectangular configuration may be the same as the maximum width of the first region 62, that is, the cross-section of the profile support 6 may be provided in a U-shape, increasing the reliability of the connection of the first region 62 with the second region 64 (see fig. 11).

It is noted that a portion of this patent application contains material which is subject to copyright protection. The copyright owner reserves copyright rights except for copies of patent documents or patent document contents of records at the patent office.

Claims (15)

1. The utility model provides a flexible screen equipment of buckling, flexible screen includes interconnect's first portion and second portion, the first portion forms the display area of flexible screen, the second portion is bent, the second portion is kept away from the one end of first portion is connected with flexible circuit board, its characterized in that, flexible screen equipment of buckling includes:

a securing mechanism for carrying and securing the first part;

the turnover mechanism is connected to the flexible circuit board and can drive the flexible circuit board to turn around the first part;

and at least part of the outer surface of the profile supporting piece is provided with a profile curved surface, and when the flexible circuit board is driven by the turnover mechanism to turn over around the first part, the profile curved surface is in contact with the second part.

2. The flexible screen bending apparatus according to claim 1, wherein the contoured surface is configured in an arc.

3. A flexible screen bending apparatus according to claim 2, wherein the arc of the contoured surface is not less than 145 °.

4. A flexible screen bending apparatus according to any one of claims 1 to 3, wherein the second portion has a bending radius R, the radius of the profiled curved surface is R, and R satisfy the following relationship: r/2 is more than or equal to R and less than or equal to 2R.

5. A flexible screen bending apparatus according to any one of claims 1 to 3, wherein the profiled support member comprises first and second regions which are spliced to one another, the profiled curved surface being provided on a side of the first region remote from the second region.

6. The flexible screen bending apparatus according to claim 5, wherein the first region and the second region are jointly spliced to form a circular structure.

7. A flexible screen bending apparatus according to claim 5, wherein the first region is provided as an arch and the second region is connected at a straight edge of the arch.

8. The flexible screen bending apparatus according to claim 7, wherein the second regions are arranged in an isosceles triangle configuration, the straight edges of the arcuate configurations forming the base of the isosceles triangle configuration.

9. The flexible screen bending apparatus according to claim 7, wherein the second region is provided as a rectangular structure, the straight edges of the arcuate structures forming one side of the rectangular structure.

10. The flexible screen bending apparatus according to claim 9, wherein the arc of the arcuate structure is greater than 180 °, and the width of the rectangular structure is less than the maximum width of the first region.

11. The flexible screen bending apparatus according to claim 9, wherein the arc of the arcuate structure is no more than 180 °, and the width of the rectangular structure is the same as the maximum width of the first region.

12. A flexible screen bending apparatus according to any one of claims 1 to 11 wherein the back face of the first portion and the back face of the second portion are each provided with a backing film, the backing films of the first and second portions being discontinuous to form a slotted region in which the profiled support is received, the second portion being bent at the slotted region.

13. The flexible screen bending process is characterized in that the flexible screen comprises a first portion and a second portion which are connected with each other, the first portion forms a display area of the flexible screen, the second portion is bent, one end, far away from the first portion, of the second portion is connected with a flexible circuit board, the flexible screen bending process is characterized in that at least a period of time exists in the bending process of the second portion, and the second portion is bent along a profiling supporting piece.

14. The flexible screen bending process of claim 13, comprising:

step S1: connecting the first part to a fixing mechanism, connecting the flexible circuit board to a turnover mechanism, moving a profiling support between the fixing mechanism and the turnover mechanism, and enabling the profiling curved surface of the profiling support to be tangent to the second part;

step S2: operating the turnover mechanism to act, wherein the turnover mechanism drives the flexible circuit board to turn around the first part, and the second part is bent along the profiling support piece;

and step S3: when the turnover mechanism moves to the first position, the profiling support is removed, and the turnover mechanism continues to rotate to the second position.

15. The flexible screen bending process according to claim 14, wherein in the step S3, the first position is an area where an included angle between the flexible circuit board and the first portion is 5 ° to 35 °.

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