Method for manufacturing folding cover plate, folding screen and folding electronic device

Abstract

The application relates to a manufacturing method of a folding cover plate, a folding screen and a folding electronic device. The manufacturing method of the folding cover plate comprises the following steps: providing a non-uniform thickness glass, the non-uniform thickness glass is provided with a first groove, a first shielding piece is arranged at a selected area of the non-uniform thickness glass, and an organic material layer is coated on the non-uniform thickness glass, so that the organic material layer covers a non-selected area of the non-uniform thickness glass, and part of the organic material layer is filled in the first groove; the first shielding piece is peeled off from the selected area to form a second groove at the selected area, and the selected area is opposite to a folding part of a display panel. The manufacturing method of the folding cover plate, the folding screen and the folding electronic device of the application avoid interference between a protective layer outside the folding part of the folding screen and the non-uniform thickness glass by adopting the second groove at the position of the folding part of the display panel of the non-uniform thickness glass, so that a gap is kept between the protective layer outside the folding part of the folding screen and the non-uniform thickness glass, and display failure of the folding screen caused by interference between the protective layer and the non-uniform thickness glass is avoided.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and in particular to a method for manufacturing a folding cover, a folding screen, and a folding electronic device. Background Technology

[0002] With the development of electronic devices such as smartphones and tablets, users have placed higher demands on the portability and performance of these devices. Foldable electronic devices, due to their ability to be folded and unfolded, have improved portability.

[0003] In related technologies, the four sides of the foldable screen of foldable electronic devices are covered by decorative parts of the mid-frame, which detracts from the overall aesthetic appeal of the foldable electronic device. Although removing the decorative parts of the mid-frame can make the appearance simpler and improve the overall aesthetics of the foldable electronic device, it requires extending the folding cover plate outward relative to the display panel of the foldable screen to leave enough space for adhesive application, so that the folding cover plate and the mid-frame can be bonded together with adhesive.

[0004] However, to reduce the width of the black borders around foldable screens, foldable screens typically employ COP packaging technology (i.e., the driver chip and ribbon cable connections are folded to the back of the display panel; this folded part will be referred to as the "folding section") to reduce the width of the black borders. A protective layer is usually placed on the outside of the folding section to protect it and prevent damage due to its small bending radius. Because the folding cover extends outwards from the display panel of the foldable screen and covers the folding section, the folding cover is prone to interference with the protective layer on the outside of the folding section. Summary of the Invention

[0005] This application provides a method for manufacturing a folding cover plate, a folding screen, and a foldable electronic device to solve the technical problem that the folding cover plate easily interferes with the protective layer at the folding position of the folding screen when the folding screen adopts COP packaging technology.

[0006] On one hand, this application provides a method for manufacturing a folding cover, comprising:

[0007] A glass of unequal thickness is provided, wherein the glass of unequal thickness has a first groove, and the glass of unequal thickness includes a first flat plate portion and a second flat plate portion separated by the first groove;

[0008] A first shielding element is provided in a selected area of ​​the glass with unequal thickness, and an organic material layer is coated on the glass with unequal thickness, such that the organic material layer covers the non-selected area of ​​the glass with unequal thickness, and part of the organic material layer fills the first groove.

[0009] The first shielding member is peeled off from the selected area to form a second groove in the selected area, wherein the selected area is opposite to the folded portion of the display panel, and a protective layer is provided on the outer side of the folded portion. The depth of the second groove is greater than the thickness of the protective layer, so that a gap is maintained between the protective layer and the glass of unequal thickness.

[0010] In one embodiment, the method of manufacturing the folding cover includes:

[0011] The selected area is thinned, and the thickness of the unequal thickness glass corresponding to the selected area is 20μm~30μm.

[0012] In one embodiment, the step of thinning a selected region of the unequal-thickness glass includes:

[0013] After the first shielding member is peeled off from the selected area, a second shielding member covering the organic material layer is provided in the non-selected area;

[0014] The selected area is then etched using photolithography.

[0015] Peel the second shielding element from the non-selected area.

[0016] In one embodiment, the step of thinning a selected region of the unequal-thickness glass includes:

[0017] Before setting the first shielding member in a selected area of ​​the glass of unequal thickness, a second shielding member covering the organic material layer is set in a non-selected area;

[0018] The selected area is then etched using photolithography.

[0019] Peel the second shielding element from the non-selected area.

[0020] In one embodiment, prior to the step of peeling the first shielding member from the selected area, the method further includes the step of:

[0021] The organic material layer is trimmed using a laser cutting process.

[0022] On the other hand, this application provides a foldable screen, including a display panel and a foldable cover plate manufactured by the above-described method for manufacturing a foldable cover plate. The display panel includes a display surface and a folding portion. A portion of the display panel is folded over to a side opposite to the display surface via the folding portion. The foldable cover plate is disposed on the side where the display surface is located, and the second groove is positioned opposite to the folding portion.

[0023] Furthermore, this application provides a foldable screen, comprising:

[0024] A display panel includes a display surface and a folding portion, wherein a portion of the display panel is folded over by the folding portion to a side opposite to the display surface;

[0025] A folding cover plate includes glass of unequal thickness and an organic material layer. The glass of unequal thickness has a first groove. The glass of unequal thickness includes a first flat plate portion and a second flat plate portion separated by the first groove. Both the first flat plate portion and the second flat plate portion cover the display surface.

[0026] An adhesive layer is bonded between the folding cover and the display surface, creating a suspended area on the side of the folding cover facing the display surface; and

[0027] A protective layer is provided on the outside of the folded portion. The protective layer is positioned opposite to the suspended area. The height of the suspended area is greater than the thickness of the protective layer, so that a gap is maintained between the protective layer and the glass of unequal thickness.

[0028] In one embodiment, the thickness of the adhesive layer is 40 μm to 50 μm, and the thickness of the protective layer is less than the thickness of the adhesive layer.

[0029] In another aspect, this application provides a foldable electronic device, including the foldable screen described above.

[0030] In one embodiment, the system further includes a mid-frame and a hinge mechanism. The mid-frame includes a first frame and a second frame. The hinge mechanism is connected between the first frame and the second frame. The foldable screen is connected to the first frame and the second frame and covers the hinge mechanism. Both the first frame and the second frame have a mid-plate and a stepped portion protruding from the mid-plate. The side of the foldable screen facing away from the display panel is connected to the mid-plate. The edge of the unequal-thickness glass protrudes from the edge of the display panel and is connected to the stepped portion.

[0031] In one embodiment, the edge of the unequal thickness glass is spaced apart from the sidewall of the stepped portion.

[0032] The manufacturing method of the folding cover plate, the folding screen, and the folding electronic device disclosed in this application, when the folding screen adopts COP packaging technology, folds a portion of the display panel of the folding screen to the side of the display panel facing away from the display surface via a folding portion. By using a second groove or forming a suspended area at the folding portion position of the display panel corresponding to the glass of unequal thickness to avoid gaps, a gap is maintained between the protective layer on the outer side of the folding portion and the glass of unequal thickness, thereby avoiding interference between the protective layer and the glass of unequal thickness that could cause display defects in the folding screen. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of a foldable electronic device in a flattened state according to one embodiment.

[0035] Figure 2 Another schematic diagram of a foldable electronic device provided in one embodiment.

[0036] Figure 3 This is a top view of a foldable electronic device according to one embodiment, with the dashed lines indicating the mounting position of the pivot mechanism.

[0037] Figure 4 A foldable electronic device provided in one embodiment along Figure 3 A schematic diagram of the cross-sectional structure of the DD line in the diagram.

[0038] Figure 5 A folding screen edge of a foldable electronic device provided in one embodiment Figure 3 A schematic diagram of the cross-sectional structure of the DD line in the diagram.

[0039] Figure 6 This is a schematic diagram of the structure of the folding cover glass with unequal thickness in a folding screen of a folding electronic device provided in one embodiment.

[0040] Figure 7 A schematic diagram of the structure of a folding cover in a folding electronic device according to one embodiment.

[0041] Figure 8 A flowchart illustrating the steps of a method for manufacturing a folding cover plate according to one embodiment.

[0042] Figure 9 for Figure 8 The diagram shows the structural schematics of the folding cover plate in each step of the manufacturing method of the folding cover plate.

[0043] Figure 10 This is a schematic flowchart illustrating the steps of thinning a selected area of ​​glass with unequal thickness in a method for manufacturing a folding cover plate according to one embodiment.

[0044] Figure 11 for Figure 10 The diagram shows the structural schematics of the folding cover plate in each step of the manufacturing method of the folding cover plate.

[0045] Figure 12 A schematic flowchart illustrating the steps of thinning a selected area of ​​glass with unequal thickness in a method for manufacturing a folding cover plate according to another embodiment.

[0046] Figure 13 for Figure 12 The diagram shows the structural schematics of the folding cover plate in each step of the manufacturing method of the folding cover plate.

[0047] Figure label:

[0048] 100. Foldable electronic device; 100a. First connector; 100b. Second connector; 100c. Third connector; 10. Foldable screen; 10a. Suspended area; 11. Display panel; 11a. Display surface; 11b. Folding part; 12. Folding cover; 121. Glass of unequal thickness; 121a. First groove; 121b. Second groove; 1211. First flat part; 1212. Second flat part; 122. Organic material layer; 12a. Selected area; 13. Adhesive layer; 14. Protective layer; 15. Screen protective layer; 20. Middle frame; 22. First frame; 24. Second frame; P. Flat part; T. Step part; 30. Rotating mechanism; 101. First shield; 102. Second shield. Detailed Implementation

[0049] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0050] As used herein, “foldable electronic device” means, but is not limited to, a device capable of receiving and / or transmitting communication signals connected via any one or more of the following connection methods: (1) via wired connection, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; (2) via wireless interface, such as cellular network, Wireless Local Area Network (WLAN), digital television network such as DVB-H network, satellite network, AM-FM broadcast transmitter.

[0051] Foldable electronic devices, as a type of electronic device, can be referred to as “mobile terminals” as electronic devices configured to communicate via wireless interfaces. Examples of mobile terminals include, but are not limited to, the following electronic devices: (1) satellite phones or cellular phones; (2) personal communications system (PCS) terminals that can combine cellular radiophones with data processing, fax, and data communication capabilities; (3) radiophones, pagers, Internet / intranet access, web browsers, notebooks, calendars, personal digital assistants (PDAs) equipped with a Global Positioning System (GPS) receiver; (4) conventional laptop and / or handheld receivers; and (5) conventional laptop and / or handheld radiophone transceivers, etc.

[0052] See Figure 1 and Figure 2 As shown in the figure, an embodiment of this application provides a foldable electronic device 100, including a foldable screen 10. Utilizing the foldable capability of the foldable screen 10, the foldable electronic device 100 can be switched between a folded state and a flattened state.

[0053] The foldable electronic device 100 also includes a middle frame 20 and a pivot mechanism 30. The middle frame 20 includes a first frame 22 and a second frame 24. The pivot mechanism 30 is connected between the first frame 22 and the second frame 24, allowing the first frame 22 and the second frame 24 to rotate relative to each other.

[0054] Combination Figure 3 As shown, the foldable screen 10 is connected to the first frame 22 and the second frame 24, and the foldable screen 10 covers the hinge mechanism 30. The first frame 22 and the foldable screen 10 can be connected by a first structural member, and the second frame 24 and the foldable screen 10 can be connected by a second structural member. The first and second structural members can be adhesive layers or screws, and are not limited here.

[0055] The mid-frame 20 forms a receiving cavity (not shown). The foldable electronic device 100 may also include a circuit board (not shown) and a battery (not shown), both of which can be disposed within the receiving cavity of the mid-frame 20. The circuit board may integrate the processor, power management module, storage unit, and baseband chip of the foldable electronic device 100. The foldable screen 10 is communicatively connected to the processor, and the battery can power the foldable screen 10 and the electronic components on the circuit board. In some embodiments, the foldable electronic device 100 may also include a camera module (not shown), which is communicatively connected to the circuit board, and the battery can power the camera module.

[0056] Combination Figure 3 and Figure 4 As shown, both the first frame 22 and the second frame 24 have a middle plate P and a stepped portion T protruding from the middle plate P. The folding screen 10 is connected to the middle plate P, and the portion of the folding screen 10 near its edge is connected to the stepped portion T. The folding screen 10 can be connected to the pivot mechanism 30 via a first connector 100a, the folding screen 10 can be connected to the middle plate P via a second connector 100b, and the folding screen 10 can be connected to the stepped portion T via a third connector 100c. It should be noted that the first connector 100a, the second connector 100b, and the third connector 100c can be double-sided adhesive or hot melt adhesive. The type and number of these connectors are not limited here. For example, the folding screen 10 can be connected to the middle plate P via two second connectors 100b.

[0057] Combination Figures 5 to 7 As shown, the foldable screen 10 includes a display panel 11, a folding cover plate 12, an adhesive layer 13, and a protective layer 14. The display panel 11 includes a display surface 11a and a folding portion 11b. The foldable screen 10 in this embodiment adopts COP packaging technology. A portion of the display panel 11 is folded through the folding portion 11b to the side opposite to the display surface 11a, which reduces the width of the black border of the foldable screen 10 and achieves a narrow bezel effect. The folding cover plate 12 includes glass of unequal thickness 121 and an organic material layer 122. The glass of unequal thickness 121 has a first groove 121a, and the glass of unequal thickness 121 includes a first flat portion 1211 and a second flat portion 1212 separated by the first groove 121a. Both the first flat portion 1211 and the second flat portion 1212 cover the display surface 11a. It can be understood that the first flat portion 1211 and the second flat portion 1212 correspond to the two parts of the foldable screen 10 when folded, and the first groove 121a corresponds to the bent portion of the foldable screen 10. Due to the setting of the first groove 121a, the glass 121 of unequal thickness has good bending performance at this position to meet the bending requirements of the folding screen 10.

[0058] An adhesive layer 13 is bonded between the folding cover plate 12 and the display surface 11a, creating a suspended area 10a on the side of the folding cover plate 12 facing the display surface 11a. A protective layer 14 is provided on the outside of the folding portion 11b, thereby ensuring that the folding portion 11b is not easily damaged when folded. The protective layer 14 is positioned opposite the suspended area 10a, and the height of the suspended area 10a is greater than the thickness of the protective layer 14. This allows a gap to be maintained between the protective layer 14 and the unequal thickness glass 121, thereby preventing interference between the protective layer 14 and the unequal thickness glass 121 that could cause display defects in the folding screen 10.

[0059] In some embodiments, the thickness of the adhesive layer 13 is 40 μm to 50 μm, for example, 40 μm, 45 μm, or 50 μm. In this embodiment, the thickness of the protective layer 14 is less than the thickness of the adhesive layer 13. Thus, even if the portion of the protective layer 14 located on the display surface 11a side of the display panel 11 faces the folding cover plate 12, because the thickness of the protective layer 14 is less than that of the adhesive layer 13, the protective layer 14 will not come into contact with the unequal-thickness glass 121 connected to the display surface 11a via the adhesive layer 13, thereby avoiding interference between the protective layer 14 and the folding cover plate 12. The adhesive layer 13 can be formed by curing OCA optical adhesive, which ensures the connection stability between the display panel 11 and the folding cover plate 12, and also meets the requirement for smooth light transmission through the display panel 11.

[0060] It should be noted that in the embodiment where the portion of the folding screen 10 near the edge is connected to the step portion T, the side of the corresponding display panel 11 of the folding screen 10 facing away from the display surface 11a is connected to the middle plate P. The edge of the unequal thickness glass 121 protrudes from the edge of the display panel 11 and is connected to the step portion T, so that the folding electronic device 100 presents the effect of the folding cover 12 being directly connected to the middle frame 20. This structure is simple overall and has a strong sense of overall appearance.

[0061] The edges of the unequal thickness glass 121 are spaced apart from the sidewalls of the step portion T so that vibration isolation can be achieved by using the gap between the unequal thickness glass 121 and the step portion T. This reduces the probability that external force will be transmitted through the middle frame 20 to the unequal thickness glass 121 when the foldable electronic device 100 is dropped to the ground or impacted, thereby reducing the risk of the foldable screen 10 breaking.

[0062] Combination Figure 4 and Figure 5 As shown, the foldable screen 10 also includes a screen protective layer 15, which is connected to the side of the unequal thickness glass 121 facing away from the display panel 11. The screen protective layer 15 and the unequal thickness glass 121 can be connected by an OCA optical adhesive layer. The OCA optical adhesive layer ensures the connection stability between the screen protective layer 15 and the unequal thickness glass 121, and also meets the requirement of allowing light to pass smoothly through the display panel 11.

[0063] In some embodiments, to reduce the risk of interference between the protective layer 14 on the outer side of the folding portion 11b of the display panel 11 and the folding cover plate 12, the adhesive layer 13 can be bonded between the folding cover plate 12 and the display surface 11a of the display panel 11 to form a suspended region 10a, such that the height of the suspended region 10a is greater than the thickness of the protective layer 14. In other embodiments, the folding cover plate 12 can be processed so that after the folding cover plate 12 is connected to the display panel 11, a gap is maintained between the folding cover plate 12 and the protective layer 14 on the outer side of the folding portion 11b.

[0064] For ease of understanding, the following embodiments will describe the manufacturing method of the folding cover plate 12.

[0065] Combination Figure 8 and Figure 9 As shown, another embodiment of this application provides a method for manufacturing a folding cover plate 12, including:

[0066] Step S102: Provide glass 121 of unequal thickness. The glass 121 of unequal thickness has a first groove 121a. The glass 121 of unequal thickness includes a first flat plate portion 1211 and a second flat plate portion 1212 separated by the first groove 121a.

[0067] In step S104, a first shielding member 101 is provided in a selected area 12a of the glass 121 with unequal thickness, and an organic material layer 122 is applied to the glass 121 with unequal thickness, such that the organic material layer 122 covers the non-selected area of ​​the glass 121 with unequal thickness (i.e., the area other than the selected area 12a), and part of the organic material layer 122 fills the first groove 121a.

[0068] Understandably, the selected area 12a and the unselected area together constitute the surface of the side where the first groove 121a of the unequal thickness glass 121 is located. Since the selected area 12a is covered by the first shielding member 101, the organic material layer 122 formed by coating will not cover the selected area 12a of the unequal thickness glass 121, but will cover the unselected area not covered by the first shielding member 101. In other words, the unselected area of ​​the unequal thickness glass 121 is coated to form the organic material layer 122.

[0069] In step S106, the first shielding member 101 is peeled off from the selected area 12a to form a second groove 121b in the selected area 12a. The selected area 12a is opposite to the folded portion 11b of the display panel 11. A protective layer 14 is provided on the outer side of the folded portion 11b. The depth of the second groove 121b is greater than the thickness of the protective layer 14, so that a gap is maintained between the protective layer 14 and the glass 121 with unequal thickness.

[0070] The folding cover 12 manufactured by the above manufacturing method has a gap between the protective layer 14 and the unequal thickness glass 121 because the depth of the second groove 121b is greater than the thickness of the protective layer 14. This avoids the problem of interference between the protective layer 14 and the unequal thickness glass 121.

[0071] It should be noted that the protective layer 14 can be a thin film structure or a metal cover layer (MCL), that is, a protective adhesive covering the outside of the folded part 11b.

[0072] In some embodiments, the method of manufacturing the folding cover 12 further includes:

[0073] Step S202: Thinning is performed on the selected region 12a. The thickness h of the unequal thickness glass 121 corresponding to the selected region 12a is 20μm~30μm.

[0074] The thickness h of the selected region 12a can be 20μm, 25μm, or 30μm. In this way, by thinning the selected region 12a of the unequal thickness glass 121, the overall thickness of the region is reduced, and the space freed up by the thinning can be used to provide clearance for the protective layer 14, thereby avoiding interference between the protective layer 14 and the unequal thickness glass 121 while maintaining the overall thickness of the folded screen 10.

[0075] Combination Figure 10 and Figure 11 As shown, in some embodiments, step S202, namely the step of thinning a selected region 12a of the unequal-thickness glass 121, includes:

[0076] In step S2022, after the first shielding member 101 is peeled off from the selected area 12a, a second shielding member 102 covering the organic material layer 122 is provided in the non-selected area.

[0077] Step S2024: Selected region 12a is etched using photolithography.

[0078] Step S2026: Peel the second shielding member 102 from the non-selected area.

[0079] In this embodiment, the second shielding member 102 is used to shield the non-selected area, which avoids damage to the organic material layer 122 located in the non-selected area when photolithography is performed on the selected area 12a. This helps to maintain the strengthening effect of the organic material layer 122 in the folding cover plate 12 and ensures the hardness of the folding cover plate 12.

[0080] Combination Figure 12 and Figure 13As shown, in some other embodiments, the step of thinning a selected region 12a of the unequal-thickness glass 121 includes:

[0081] In step S202A, before setting the first shielding member 101 in the selected area 12a of the glass 121 with unequal thickness, a second shielding member 102 covering the organic material layer 122 is set in the non-selected area.

[0082] Step S202B: Selected area 12a is etched using photolithography.

[0083] Step S202C: Peel the second shielding member 102 from the non-selected area.

[0084] In some embodiments, the step of peeling the first shield 101 from the selected region 12a is further included:

[0085] The organic material layer 122 is trimmed using laser cutting technology.

[0086] In this embodiment, the uneven edges of the organic material layer 122 are smoothed using a laser, ensuring that the organic material layer 122 protrudes uniformly from the edges of the unequal-thickness glass 121. Understandably, since the selected area 12a of the unequal-thickness glass 121 does not cover the organic material layer 122, the edge of the unequal-thickness glass 121 corresponding to the selected area 12a does not expose the organic material layer 122. Therefore, the area of ​​the folding cover plate 12 corresponding to the selected area 12a will be thinner than other areas, thus forming the second groove 121b. In this way, when the selected area 12a is set opposite to the folding portion 11b of the display panel 11, the second groove 121b can be used to clear the protective layer 14 on the outer side of the folding portion 11b, preventing interference between the protective layer 14 and the unequal-thickness glass 121.

[0087] It should be noted that, based on the manufacturing method of the folding cover plate 12 described above, another embodiment of this application can apply the folding cover plate 12 to the folding screen 10. Specifically, this application also provides a folding screen 10, including a display panel 11 and a folding cover plate 12 manufactured by the manufacturing method of the folding cover plate 12 described above. In this embodiment, the display panel 11 includes a display surface 11a and a folding portion 11b. A portion of the display panel 11 is folded through the folding portion 11b to the side opposite to the display surface 11a, and the folding cover plate 12 is disposed on the side where the display surface 11a is located. The second groove 121b is positioned opposite to the folding portion 11b, thereby creating a clearance for the protective layer 14 on the outer side of the folding portion 11b, avoiding interference between the protective layer 14 and the glass 121 with unequal thickness.

[0088] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for manufacturing a folding cover plate, characterized in that, include: A glass of unequal thickness is provided, wherein the glass of unequal thickness has a first groove, and the glass of unequal thickness includes a first flat plate portion and a second flat plate portion separated by the first groove; A first shielding element is provided in a selected area of ​​the glass with unequal thickness, and an organic material layer is coated on the glass with unequal thickness, such that the organic material layer covers the non-selected area of ​​the glass with unequal thickness, and part of the organic material layer fills the first groove. The first shielding member is peeled off from the selected area to form a second groove in the selected area, wherein the selected area is opposite to the folded portion of the display panel, and a protective layer is provided on the outer side of the folded portion. The depth of the second groove is greater than the thickness of the protective layer, so that a gap is maintained between the protective layer and the glass of unequal thickness.

2. The method for manufacturing a folding cover plate according to claim 1, characterized in that, include: The selected area is thinned, and the thickness of the unequal thickness glass corresponding to the selected area is 20μm~30μm.

3. The method for manufacturing a folding cover plate according to claim 2, characterized in that, The step of thinning a selected area of ​​the glass with unequal thickness includes: After the first shielding member is peeled off from the selected area, a second shielding member covering the organic material layer is provided in the non-selected area; The selected area is then etched using photolithography. Peel the second shielding element from the non-selected area.

4. The method for manufacturing a folding cover plate according to claim 2, characterized in that, The step of thinning a selected area of ​​the glass with unequal thickness includes: Before setting the first shielding member in a selected area of ​​the glass of unequal thickness, a second shielding member covering the organic material layer is set in a non-selected area; The selected area is then etched using photolithography. Peel the second shielding element from the non-selected area.

5. The method for manufacturing a folding cover plate according to claim 1, characterized in that, Prior to the step of peeling the first shielding member from the selected area, the method further includes the step of: The organic material layer is trimmed using a laser cutting process.

6. A foldable screen, characterized in that, The invention includes a display panel and a folding cover plate manufactured by the manufacturing method of the folding cover plate as described in any one of claims 1-5. The display panel includes a display surface and a folding portion. A portion of the display panel is folded over to a side opposite to the display surface via the folding portion. The folding cover plate is disposed on the side where the display surface is located. The second groove is positioned opposite to the folding portion.

7. The foldable screen according to claim 6, characterized in that, The foldable screen includes an adhesive layer bonded between the foldable cover and the display surface, creating a suspended area on the side of the foldable cover facing the display surface; the protective layer is positioned opposite the suspended area, and the thickness of the protective layer is less than the thickness of the adhesive layer.

8. The foldable screen according to claim 7, characterized in that, The thickness of the adhesive layer is 40μm~50μm.

9. A foldable electronic device, characterized in that, Including the foldable screen as described in any one of claims 6-8.

10. The foldable electronic device according to claim 9, characterized in that, It also includes a mid-frame and a hinge mechanism. The mid-frame includes a first frame and a second frame. The hinge mechanism is connected between the first frame and the second frame. The folding screen is connected to the first frame and the second frame. The folding screen covers the hinge mechanism. Both the first frame and the second frame have a mid-plate and a stepped portion protruding from the mid-plate. The side of the folding screen facing away from the display panel is connected to the mid-plate. The edge of the unequal thickness glass protrudes from the edge of the display panel and is connected to the stepped portion.

11. The foldable electronic device according to claim 10, characterized in that, The edges of the unequal-thickness glass are spaced apart from the sidewalls of the stepped portion.

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