Folding display device

Abstract

The present application provides a folding display device, in which a first protective portion of an ultra-thin glass is fixedly mounted on a first shell, a second protective portion is fixedly mounted on a second shell, and a dustproof mechanism is partially disposed in a gap formed by the flexible protective portion being retracted relative to the first protective portion and the second protective portion. The dustproof mechanism covers the edge of the flexible protective portion, and is used to block foreign particles such as dust, thereby preventing foreign particles such as dust from entering the side or bottom of a display panel and causing damage to the display panel when the folding display device is folded. This can ensure the dustproof effect of the folding display device while improving the feel of the folding display device.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a foldable display device. Background Art

[0002] With the development of flexible display technology, foldable display devices combine the portability of ordinary electronic devices with the ultimate experience of large-screen display after unfolding, making foldable display devices gradually become an important trend in the development of mobile terminals and an important area of ​​competition for major terminal manufacturers.

[0003] Currently, inward-folding display devices require edge strips to cover the display panel on all sides to shield the gap between the display panel and the housing. However, the introduction of edge strips can cause discomfort when users touch the edge of the display panel due to the step difference between the edge strip and the display panel. Furthermore, when a folding display device is folded, the display panel will sag downward, and foreign particles such as dust may enter the sides or bottom of the display panel and damage it.

[0004] Therefore, it is necessary to provide a foldable display device to improve this defect. Summary of the Invention

[0005] An embodiment of the present application provides a foldable display device, which can improve the hand feel of the foldable display device while ensuring the dustproof effect of the foldable display device.

[0006] To achieve the above objectives, according to a first aspect of the present application, a foldable display device is provided, comprising:

[0007] The housing comprises a first housing and a second housing;

[0008] a hinge connected between the first shell and the second shell;

[0009] a display module, disposed on the housing and the hinge, the display module comprising a display panel and ultra-thin glass, the ultra-thin glass being disposed on a side of the display panel away from the housing and the hinge;

[0010] A dustproof mechanism, partially disposed on the display module;

[0011] In which, the ultra-thin glass includes a flexible protective part, a first protective part and a second protective part, the first protective part and the second protective part are respectively connected to the opposite sides of the flexible protective part, the thickness of the flexible protective part is less than the thickness of the first protective part, the thickness of the flexible protective part is less than the thickness of the second protective part, the first protective part is fixedly installed on the first shell, and the second protective part is fixedly installed on the second shell, the flexible protective part is retracted relative to the first protective part and the second protective part to form a notch, the dustproof mechanism is partially arranged in the notch, and the dustproof mechanism covers the edge of the flexible protective part.

[0012] Optionally, along a direction parallel to the bending axis of the hinge, the width of the flexible protecting portion is smaller than the width of the first protecting portion, and the width of the flexible protecting portion is smaller than the width of the second protecting portion.

[0013] Optionally, the dustproof mechanism includes a first front frame and a second front frame, the flexible protective portion includes a first main portion and first edge portions provided on opposite sides of the first main portion, the first main portion is provided on the display panel, and the first edge portions extend beyond an edge of the display panel;

[0014] The first front frame is fixedly mounted on the first shell or the hinge, and covers an end of the first edge portion close to the first protective portion; the second front frame is fixedly mounted on the second shell or the hinge, and covers an end of the first edge portion close to the second protective portion.

[0015] Optionally, the hinge includes a third shell, a first support member and a second support member, the first support member is movably connected to one side of the third shell, the second support member is movably connected to the other side of the third shell, the first front frame is fixedly mounted on the first support member, and the second front frame is fixedly mounted on the second support member.

[0016] Optionally, the dustproof mechanism further includes a dustproof plug, which is disposed between the first front frame and the second front frame, and is fixedly mounted on the hinge, and partially covers the first edge portion.

[0017] Optionally, the dust-proof mechanism further includes a soft strip, the first end of the soft strip being arranged between the first front frame and the first edge portion, the second end of the soft strip being arranged between the second front frame and the first edge portion, and the middle portion of the soft strip being arranged between the dust plug and the first edge portion.

[0018] Optionally, the first end of the soft strip is fixedly connected to the first front frame, and the second end of the soft strip is fixedly connected to the second front frame.

[0019] Optionally, the soft strip is fixedly connected to the dust plug.

[0020] Optionally, when the folding display device is in a first state, the soft strip is located between the first shell and the second shell, and the soft strip is in a bent state; when the folding display device is in a second state, the soft strip is located on the side of the ultra-thin glass away from the shell, and the soft strip is in a stretched state.

[0021] Optionally, the first housing includes a first bottom frame and a first middle frame protruding from an edge of the first bottom frame; the first protective portion includes a second main portion and a second edge portion disposed around the second main portion; the second main portion is disposed on the display panel, the second edge portion extends beyond an edge of the display panel, and an end of the first middle frame away from the first bottom frame is fixedly connected to a side of the second edge portion close to the display panel;

[0022] The second shell includes a second bottom frame and a second middle frame protruding from the edge of the second bottom frame. The second protective portion includes a third main body portion and a third edge portion arranged around the third main body portion. The third main body portion is arranged on the display panel, and the third edge portion extends beyond the edge of the display panel. An end of the second middle frame away from the second bottom frame is fixedly connected to a side of the third edge portion close to the display panel.

[0023] Optionally, the folding display device includes a first adhesive layer, part of the first adhesive layer is arranged between the first middle frame and the second edge portion, and another part of the first adhesive layer is arranged between the second middle frame and the third edge portion.

[0024] Optionally, the display panel includes a bending portion and a first non-bending portion and a second non-bending portion connected to both sides of the bending portion, the first non-bending portion is provided on the first bottom frame, and the second non-bending portion is provided on the second bottom frame;

[0025] The folding display device further includes a second adhesive layer, part of the first adhesive layer is arranged between the first non-bending portion and the first bottom frame, and another part of the second adhesive layer is arranged between the second non-bending portion and the second bottom frame.

[0026] Optionally, the elastic modulus of the second adhesive layer is smaller than the elastic modulus of the first adhesive layer.

[0027] Optionally, the display module further includes a replaceable protective film, and the replaceable protective film is arranged on a side of the ultra-thin glass away from the display panel.

[0028] Optionally, the display module further includes at least one explosion-proof layer, which is arranged on the surface of the ultra-thin glass close to or away from the replaceable protective film. The material of the explosion-proof layer includes a polymer material, and the elastic modulus of the explosion-proof layer is greater than or equal to 100 MPa and less than or equal to 10 GPa.

[0029] Optionally, the explosion-proof layer includes a first explosion-proof layer and a second explosion-proof layer, the first explosion-proof layer is arranged on the surface of the ultra-thin glass close to the replaceable protective film, and the second explosion-proof layer is arranged on the surface of the ultra-thin glass away from the replaceable protective film, and the elastic modulus of the first explosion-proof layer is greater than or equal to the elastic modulus of the second explosion-proof layer.

[0030] Optionally, the polymer material includes polyurethane acrylate.

[0031] Optionally, the foldable display device further includes a light-shielding layer, and the light-shielding layer is arranged on four edges of the surface of the ultra-thin glass away from the display panel.

[0032] In the folding display device of the embodiment of the present application, by making the thickness of the flexible protective part smaller than the thickness of the first protective part and the thickness of the second protective part, the bending performance of the flexible protective part and the stiffness of the first protective part and the second protective part are taken into account, so that the edges of the first protective part and the second protective part are expanded outward, so that the first protective part of the ultra-thin glass can be fixedly installed on the first shell, and the second protective part can be fixedly installed on the second shell, and the dustproof mechanism is partially arranged in the gap formed by the inward contraction of the flexible protective part relative to the first protective part and the second protective part. The dustproof mechanism covers the edge of the flexible protective part, and the dustproof mechanism is used to block dust and other foreign particles to prevent dust and other foreign particles from entering the side or bottom of the display panel when the folding display device is folded and causing damage to the display panel. This can ensure the dustproof effect of the folding display device while improving the feel of the folding display device.

[0033] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0035] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0036] Figure 1 A schematic diagram of a foldable display device provided in an embodiment of the present application;

[0037] Figure 2 An exploded schematic diagram of a foldable display device provided in an embodiment of the present application;

[0038] Figure 3 A front view schematic diagram of a display module in a foldable display device provided in an embodiment of the present application;

[0039] Figure 4 A schematic diagram of the back side of a display module in a foldable display device provided in an embodiment of the present application;

[0040] Figure 5 A top view of a display module in a foldable display device according to an embodiment of the present application;

[0041] Figure 6 Bottom view of the display module in the foldable display device provided in an embodiment of the present application

[0042] Figure 7 A schematic diagram of the film layer structure of the foldable display device provided in an embodiment of the present application;

[0043] Figure 8 A schematic diagram of the film layer structure of another foldable display device provided in an embodiment of the present application;

[0044] Figure 9 A schematic diagram of the membrane layer structure of another foldable display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0046] The present application provides a foldable display device, which includes a housing, a hinge, a display module, and a dustproof mechanism. The housing includes a first housing and a second housing, the hinge is connected between the first housing and the second housing, the display module is disposed on the housing and the hinge, the display module includes a display panel and ultra-thin glass, the ultra-thin glass is disposed on a side of the display panel away from the housing and the hinge, and the dustproof mechanism is partially disposed on the display module. The ultra-thin glass includes a flexible protective portion, a first protective portion, and a second protective portion, the first protective portion and the second protective portion are respectively connected to opposite sides of the flexible protective portion, the first protective portion is fixedly mounted on the first housing, and the second protective portion is fixedly mounted on the second housing, the thickness of the flexible protective portion is less than the thickness of the first protective portion, the thickness of the flexible protective portion is less than the thickness of the second protective portion, the flexible protective portion is retracted relative to the first and second protective portions to form a notch, the dustproof mechanism is partially disposed within the notch, and the dustproof mechanism covers the edge of the flexible protective portion.

[0047] In this embodiment, by making the thickness of the flexible protective part smaller than the thickness of the first protective part and the thickness of the second protective part, the bending performance of the flexible protective part and the stiffness of the first protective part and the second protective part are taken into account. In this way, the edges of the first protective part and the second protective part can be expanded outward compared to the edges of the flexible protective part, so that the first protective part can be fixedly installed on the first shell, and the second protective part can be fixedly installed on the second shell, and the flexible protective part is retracted relative to the first protective part and the second protective part to form a gap, so that the dustproof mechanism is partially arranged in the gap, and the dustproof mechanism covers the edge of the flexible protective part. The dustproof mechanism is used to block dust and other foreign particles to prevent dust and other foreign particles from entering the side or bottom of the display panel when the folding display device is folded and causing damage to the display panel. This can ensure the dustproof effect of the folding display device while improving the feel of the folding display device.

[0048] Combine Figures 1 to 9 As shown, the foldable display device includes a housing 1, a hinge 2, a display module 3, and a dustproof mechanism 4. The housing 1 includes a first housing 11 and a second housing 12, and the hinge 2 is connected between the first housing 11 and the second housing 12. The display module 3 is disposed on the housing 1 and the hinge 2, and the dustproof mechanism 4 is partially disposed on the display module 3.

[0049] The display module 3 includes a display panel 31 and an ultra-thin glass 32 . The ultra-thin glass 32 is disposed on a side of the display panel 31 away from the housing 1 and the hinge 2 .

[0050] The ultra-thin glass 32 includes a flexible protective portion 323, a first protective portion 321 and a second protective portion 322. The first protective portion 321 and the second protective portion 322 are respectively connected to opposite sides of the flexible protective portion 323. The thickness of the flexible protective portion 323 is less than the thickness of the first protective portion 321, and the thickness of the flexible protective portion 323 is less than the thickness of the second protective portion 322, so as to take into account the bending performance of the flexible protective portion 323 and the stiffness of the first protective portion 321 and the second protective portion 322. In this way, the edges of the first protective portion 321 and the second protective portion 322 can be expanded outward to fix the first protective portion 321 on the first shell 11 and the second protective portion 322 on the second shell 12. The flexible protective portion 323 is retracted relative to the first protective portion 321 and the second protective portion 322 to form a notch 10. The dustproof mechanism 4 is partially arranged in the notch 10, and the dustproof mechanism 4 covers the edge of the flexible protective portion 323.

[0051] In some embodiments, the four edges of the ultra-thin glass 32 extend beyond the four edges of the display panel 31, the edge of the first protective portion 321 is fixedly mounted on the top of the first shell 11, and the edge of the second protective portion 322 is fixedly mounted on the top of the second shell 12. In this way, there is no need to set a pressure strip between the first protective portion 321 and the second protective portion 322 and the shell 1, and the gap between the first protective portion 321 and the second protective portion 322 and the shell 1 can be eliminated, thereby avoiding the height difference between the pressure strip and the display module causing discomfort to the user.

[0052] In some embodiments, a gap 10 is formed between the two side edges of the flexible protective portion 323 and the first shell 11 and the second shell 12. The folding display device has two dustproof mechanisms 4, and the two dustproof mechanisms 4 are respectively arranged in the gaps 10 on the two side edges of the flexible protective portion 323 to prevent.

[0053] In some embodiments, the edge of the flexible protective portion 323 is retracted inward in a direction parallel to the bending axis of the hinge 2, and there is a gap 10 between the first shell 11 and the second shell 12. The dustproof mechanism 4 is partially arranged in the gap 10, and the dustproof mechanism 4 also covers the edge of the flexible protective portion 323 to prevent dust and other foreign particles from entering the side or bottom of the display panel 31 through the gap between the display module 3 and the shell 1 and the hinge 2, thereby reducing the risk of dust and other foreign particles causing damage to the display panel 31.

[0054] In some embodiments, along a direction parallel to the bending axis of the hinge 2, the width of the flexible protective portion 323 is smaller than the width of the first protective portion 321, and the width of the flexible protective portion 323 is smaller than the width of the second protective portion 322. The edges of the ultra-thin glass 32 protrude beyond the edges of the display panel 31. By increasing the widths of the first and second protective portions 321, 322, and 323, the edges of the first, second, and flexible protective portions all protrude relatively outward from the underlying edges of the display panel 31, with the first and second protective portions 321, 322 protruding further than the flexible protective portion 323. The portion of the first protective portion 321 that protrudes beyond the display panel 31 is fixedly mounted on the top of the first housing 11, and the portion of the second protective portion 322 that protrudes beyond the display panel 31 is fixedly mounted on the top of the second housing 12, thereby securing the display module 3 to the first and second housings 11, 12. Since the width of the flexible protective portion 323 is smaller than the width of the first protective portion 321 and the second protective portion 322, there is a certain gap between the edge of the flexible protective portion 323 and the first shell 11 and the second shell 12 along the direction parallel to the bending axis of the hinge 2. The gap can form a notch 10, and the dustproof mechanism 4 is partially arranged in the notch 10 and covers the edge of the flexible protective portion 323.

[0055] In some embodiments, the dustproof mechanism 4 includes a first front frame 41 and a second front frame 42. The flexible protective portion 323 includes a first main portion 3231 and first edge portions 3232 disposed on opposite sides of the first main portion 3231. The first main portion 3231 is disposed on the display panel 31, and the first edge portions 3232 extend beyond the edge of the display panel 31. The first front frame 41 is fixedly mounted on the first housing 11 or the hinge 2, covering an end of the first edge portion 3232 adjacent to the first protective portion 321. The second front frame 42 is fixedly mounted on the second housing 12 or the hinge 2, covering an end of the first edge portion 3232 adjacent to the second protective portion 322. The first front frame 41 and the second front frame 42 are used to cover the opposite ends of the first edge portion 3232 respectively. This can reduce the risk of damage caused by collisions at the edge of the corresponding bending area of ​​the display module 3, and can also prevent dust and other foreign particles from entering the side or back of the display panel 31 through the gap between the edge of the corresponding bending area of ​​the display module 3 and the first shell 11 and the second shell 12 to cause damage to the display panel.

[0056] In some embodiments, the first front frame 41 is fixedly mounted on the first housing 11, and the second front frame 42 is fixedly mounted on the second housing 12. For example, the first front frame 41 is fixedly connected to the first housing 11 by adhesive, and the second front frame 42 is fixedly connected to the second housing 12 by adhesive.

[0057] In some embodiments, the hinge 2 includes a third shell 23, a first support member 24 and a second support member 25, the first support member 24 is movably connected to one side of the third shell 23, the second support member 25 is movably connected to the other side of the third shell 23, the first front frame 41 is fixedly mounted on the first support member 24, and the second front frame 42 is fixedly mounted on the second support member 25.

[0058] In some embodiments, the hinge 2 further includes a rotation mechanism (not shown), a third support member 26, and a fourth support member 27. The rotation mechanism is rotatably mounted within the third housing 23. One end of the first support member 24 is rotatably connected to one side of the rotation mechanism, and the other end of the first support member 24 is rotatably connected to the third support member 26. The third support member 26 is fixedly connected to the first housing 11. One end of the second support member 25 is rotatably connected to the other side of the rotation mechanism, and the other end of the second support member 25 is rotatably connected to the fourth support member 27. The fourth support member 27 is fixedly connected to the second housing 12. The first support member 24 rotates about one of the rotation axes of the rotation mechanism and drives the first housing 11 to rotate via the third support member 26. The second support member 25 rotates about the other rotation axis of the rotation mechanism and drives the second housing 12 to rotate via the fourth support member 27. The rotation of the first and second housings 11 and 12 causes the display modules fixed to the first and second housings 11 and 12 to fold or unfold, thereby achieving folding or unfolding of the foldable display device. It should be noted that the structure of the rotating mechanism may refer to the structure of the rotating mechanism of the hinge in the existing folding display device, and is not limited here.

[0059] In some embodiments, the display panel 31 includes a bent portion 313 and a first non-bent portion 311 and a second non-bent portion 312 connected to the bent portion 313 on both sides. The bent portion 313 is partially disposed on the first support member 24, and the bent portion 313 is partially disposed on the second support member 25. The first support member 24 and the second support member 25 can support and fix the bent portion 313, thereby reducing the crease of the display module.

[0060] In some embodiments, the first front frame 41 is fixedly mounted on the first support member 24, and the second front frame 42 is fixedly mounted on the second support member 25. For example, the first front frame 41 is fixedly connected to the first support member 24 by adhesive, and the second front frame 42 is fixedly connected to the second support member 25 by adhesive.

[0061] In some embodiments, the dustproof mechanism 4 further includes a dust plug 43, which is disposed between the first front frame 41 and the second front frame 42. The dust plug 43 is fixedly mounted on the hinge 2, and partially covers the first edge portion 3232. The dust plug 43 can be used to block the gap between the edge of the flexible protective portion 323 and the first shell 11 and the second shell 12, thereby preventing dust and other foreign particles from entering the side or back of the display panel 31 through the gap between the flexible protective portion 323 and the first shell 11 and the second shell 12 and causing damage to the display panel.

[0062] In some embodiments, the dust plug 43 is fixedly mounted on the third housing 23 of the hinge 2. For example, the dust plug 43 is fixedly connected to the third housing 23 by adhesive.

[0063] In some embodiments, the dustproof mechanism 4 further includes a soft strip 44. The first end of the soft strip 44 is disposed between the first front frame 41 and the first edge portion 3232, the second end of the soft strip 44 is disposed between the second front frame 42 and the first edge portion 3232, and the middle portion of the soft strip 44 is disposed between the dust plug 43 and the first edge portion 3232. The soft strip 44 is made of a relatively soft material. By pressing the soft strip 44 between the first front frame 41, the second front frame 42, the dust plug 43, and the first edge portion 3232, the soft strip 44 blocks the gaps between the first front frame 41, the second front frame 42, the dust plug 43, and the first edge portion 3232, the first housing 11, and the second housing 12, thereby preventing dust from entering the side or back of the display panel 31 through the gaps between the aforementioned components and causing damage to the display panel 31.

[0064] In some embodiments, the first end of the soft strip 44 is fixedly connected to the first front frame 41 , and the second end of the soft strip 44 is fixedly connected to the second front frame 42 , thereby preventing the soft strip 44 from falling off from the folding display device.

[0065] In some embodiments, the first front frame 41 has a first hook (not shown in the figure), the first end of the soft strip 44 has a first opening that cooperates with the first hook, the second front frame 42 has a second hook, and the second end of the soft strip 44 has a second opening that cooperates with the second hook.

[0066] In some embodiments, the first end of the soft strip 44 is fixedly connected to the first front frame 41 by adhesive, and the second end of the soft strip 44 is fixedly connected to the second front frame 42 by adhesive.

[0067] In some embodiments, the soft strip 44 is integrally formed with the first front frame 41 and the second front frame 42 by in-mold injection molding.

[0068] In some embodiments, the soft strip 44 is fixedly connected to the dust plug 43. For example, the soft strip 44 is fixedly connected to the side of the dust plug 43 close to the ultra-thin glass 32 by adhesive.

[0069] In some embodiments, the soft strip 44 and the dust plug 43 are integrally formed by in-mold injection molding.

[0070] In some embodiments, when the folding display device 100 is in a first state, the soft strip 44 is located between the first shell 11 and the second shell 12, and the soft strip 44 is in a bent state, and the first state is a folded state; when the folding display device 100 is in a second state, the soft strip 44 is located on the side of the ultra-thin glass 32 away from the shell 1, and the soft strip 44 is in a stretched state, and the second state is a flattened state.

[0071] In some embodiments, the first shell 11 includes a first bottom frame 111 and a first middle frame 112 protruding from the edge of the first bottom frame 111, the first protective portion 321 includes a second main body portion 3211 and a second edge portion 3212 arranged around the second main body portion 3211, the second main body portion 3211 is arranged on the display panel 31, the second edge portion 3212 extends beyond the edge of the display panel 31, and the end of the first middle frame 112 away from the first bottom frame 111 is fixedly connected to the side of the second edge portion 3212 close to the display panel 31.

[0072] The second shell 12 includes a second bottom frame 121 and a second middle frame 122 protruding from the edge of the second bottom frame 121. The second protective portion 322 includes a third main body portion 3221 and a third edge portion 3222 arranged around the third main body portion 3221. The third main body portion 3221 is arranged on the display panel 31, and the third edge portion 3222 extends beyond the edge of the display panel 31. The end of the second middle frame 122 away from the second bottom frame 121 is fixedly connected to the side of the third edge portion 3222 close to the display panel 31.

[0073] In some embodiments, the folding display device 100 includes a first adhesive layer 5, part of the first adhesive layer 5 is arranged between the first middle frame 112 and the second edge portion 3212, and the first adhesive layer 5 is arranged between the second middle frame 122 and the third edge portion 3222. The peripheral edge of the ultra-thin glass 32 is bonded to the top of the first shell 11 and the second shell 12 through the first adhesive layer 5, thereby achieving a fixed connection between the ultra-thin glass 32 and the shell 1.

[0074] In some embodiments, the first non-bending portion 311 is disposed on the first bottom frame 111, the second non-bending portion 312 is disposed on the second bottom frame 121, and the folding display device 100 further includes a second adhesive layer 6, part of the second adhesive layer 6 is disposed between the first non-bending portion 311 and the first bottom frame 111, and another part of the second adhesive layer 6 is disposed between the second non-bending portion 312 and the second bottom frame 121.

[0075] In some embodiments, the elastic modulus of the second adhesive layer 6 is smaller than the elastic modulus of the first adhesive layer 5 , thereby preventing the display module 3 and the housing 1 from being debonded.

[0076] In some embodiments, the elastic modulus of the first adhesive layer 5 is greater than or equal to 10 kPa, and the elastic modulus of the second adhesive layer 6 is less than 10 kPa. For example, the elastic modulus of the second adhesive layer 6 is 9 kPa, 8.5 kPa, 8 kPa, 7.5 kPa, or 7 kPa.

[0077] In some embodiments, the thickness of the flexible protective portion 323 is thinner than that of the first protective portion 321, and thinner than that of the second protective portion 322. By thinning the thickness of the flexible protective portion 323 corresponding to the bending region, the thickness variation of the ultra-thin glass 32 in the bending region can better adapt to the folding action, and the stress distribution of the flexible protective portion 323 is more uniform, avoiding excessive stress concentration during bending. This helps reduce creases and prevents damage to the display module 3 due to excessive stress during long-term folding.

[0078] In some embodiments, the thickness of the first protection portion 321 is greater than 100 micrometers, and the thickness of the second protection portion 322 is greater than 100 micrometers.

[0079] In some embodiments, see Figure 7 The display module 3 includes a replaceable protective film 302, which is arranged on the side of the ultra-thin glass 32 away from the display panel 31. The upper surface of the replaceable protective film 302 is the outer surface of the light-emitting side of the display module 3. When the replaceable protective film 302 is scratched or damaged, it can be replaced, thereby protecting the ultra-thin glass 32 and the display panel 31.

[0080] In some embodiments, see Figure 7 The replaceable protective film 302 is adhered to the surface of the ultra-thin glass 32 away from the display panel 31 through the seventh adhesive layer 303. By using the ultra-thin glass 32 externally, the ultra-thin glass 32 is close to the outer surface of the light-emitting side of the display module 3, thereby improving the surface texture and touch of the display module 3.

[0081] In some embodiments, see Figure 7The display module 3 further includes at least one explosion-proof layer 33, which is disposed on the surface of the ultra-thin glass 32 close to or away from the replaceable protective film 302. By directly coating the explosion-proof layer 33 on the surface of the ultra-thin glass 32 close to or away from the replaceable protective film 302, the explosion-proof performance of the ultra-thin glass 32 can be improved.

[0082] In some embodiments, the material of the explosion-proof layer 33 includes a polymer material, and the polymer material may specifically be polyurethane acrylate.

[0083] In some embodiments, the elastic modulus of the explosion-proof layer 33 is greater than or equal to 100 MPa and less than or equal to 10 GPa, so that the explosion-proof layer 33 has a certain hardness and buffering performance, thereby improving the explosion-proof performance of the ultra-thin glass 32.

[0084] In some embodiments, see Figure 7 The display module 3 includes an explosion-proof layer 33, which is disposed on the surface of the ultra-thin glass 32 near the replaceable protective film 302. By directly coating the explosion-proof layer 33 on the surface of the ultra-thin glass 32 near the replaceable protective film 302, the explosion-proof performance of the ultra-thin glass 32 can be improved.

[0085] In some embodiments, see Figure 8 The display module 3 includes an explosion-proof layer 33, which is disposed on the surface of the ultra-thin glass 32 away from the replaceable protective film 302. By directly coating the explosion-proof layer 33 on the surface of the ultra-thin glass 32 away from the replaceable protective film 302, the explosion-proof layer 33 can not only fill the surface of the ultra-thin glass 32 near the display panel 31 with the explosion-proof layer 33, but also improve the explosion-proof performance of the ultra-thin glass 32.

[0086] In some embodiments, see Figure 9 The explosion-proof layer 33 includes a first explosion-proof layer 331 and a second explosion-proof layer 332. The first explosion-proof layer 331 is disposed on the surface of the ultra-thin glass 32 near the replaceable protective film 302, while the second explosion-proof layer 332 is disposed on the surface of the ultra-thin glass 32 away from the replaceable protective film 302. The elastic modulus of the first explosion-proof layer 331 is greater than that of the second explosion-proof layer 332. Because the first explosion-proof layer 331 is closer to the outer surface of the light-emitting side of the display module 3, by making the elastic modulus of the first explosion-proof layer 331 greater than that of the second explosion-proof layer 332, the first explosion-proof layer 331 has greater hardness, preventing scratches on the ultra-thin glass 32 and improving the texture and tactile feel of the display module 3. The second explosion-proof layer 332 has a lower elastic modulus and better cushioning properties, absorbing more stress and strain generated during an impact, thereby further improving the explosion-proof performance of the ultra-thin glass 32.

[0087] In some embodiments, the elastic modulus of the first explosion-proof layer 331 is equal to the elastic modulus of the second explosion-proof layer 332 , which can also improve the explosion-proof performance of the ultra-thin glass 32 .

[0088] In some embodiments, see Figures 4 to 9 The display module 3 also includes a support layer 34 and a protective film 305. The support layer 34 is arranged on the side of the display panel 31 away from the ultra-thin glass 32. The portion of the support layer 34 corresponding to the bending portion 313 is provided with a patterned structure 306. The patterned structure 306 may include, but is not limited to, at least one or a combination of arrayed through holes, blind holes, or grooves, thereby improving the bending performance of the support layer 34 corresponding to the bending portion 313 and reducing concentrated stress. The protective film 305 is arranged on the surface of the patterned structure 306 away from the display panel 31. The protective film 305 is used to seal the patterned structure to prevent dust and other foreign particles from entering the holes or grooves of the patterned structure and affecting the bending performance of the support layer 34. The second adhesive layer 6 is arranged on the surface of the support layer 34 away from the display panel 31, wherein part of the second adhesive layer 6 can be arranged between the support layer 34 and the first bottom frame 111, and another part of the second adhesive layer 6 can be arranged between the support layer 34 and the second bottom frame 121.

[0089] In some embodiments, see Figures 7 to 9 The display module 3 further includes a backplane 35, which is disposed between the display panel 31 and the support layer 34. The backplane 35 is bonded to the back surface of the display panel 31 via a third adhesive layer 36, and is bonded to the surface of the support layer 34 on the side closest to the display panel 31 via a fourth adhesive layer 37.

[0090] In some embodiments, see Figures 7 to 9 The display module 3 further includes a polarizing layer 38, which is disposed between the display panel 31 and the ultra-thin glass 32. The polarizing layer 38 is bonded to the light-emitting surface of the display panel 31 via a fifth adhesive layer 39. The polarizing layer 38 is also bonded to the surface of any one of the ultra-thin glass 32, the explosion-proof layer 33, and the second explosion-proof layer 332, on the side closest to the display panel 31, via a sixth adhesive layer 301.

[0091] In some embodiments, the display module 3 further includes a light shielding layer 304, which is disposed around the edges of the ultra-thin glass 32 on the side away from the display panel 31. The light shielding layer 304 can shield the edges of the ultra-thin glass 32 and the display panel 31 to prevent color difference.

[0092] In some embodiments, the light shielding layer 304 is made of black ink.

[0093] Beneficial effects of the embodiments of the present application: In the folding display device of the embodiments of the present application, by making the thickness of the flexible protective part smaller than the thickness of the first protective part and the thickness of the second protective part, the bending performance of the flexible protective part and the stiffness of the first protective part and the second protective part are taken into account, so that the edges of the first protective part and the second protective part are expanded outward, so that the first protective part of the ultra-thin glass can be fixedly installed on the first shell, and the second protective part can be fixedly installed on the second shell, and the dustproof mechanism is partially arranged in the gap formed by the inward contraction of the flexible protective part relative to the first protective part and the second protective part. The dustproof mechanism covers the edge of the flexible protective part, and the dustproof mechanism is used to block dust and other foreign particles to prevent dust and other foreign particles from entering the side or bottom of the display panel when the folding display device is folded and causing damage to the display panel, thereby ensuring the dustproof effect of the folding display device while improving the feel of the folding display device.

[0094] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0095] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0096] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0097] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A foldable display device, characterized in that: include: The housing comprises a first housing and a second housing; a hinge connected between the first shell and the second shell; a display module, disposed on the housing and the hinge, the display module comprising a display panel and ultra-thin glass, the ultra-thin glass being disposed on a side of the display panel away from the housing and the hinge; A dustproof mechanism, partially disposed on the display module; Wherein, the ultra-thin glass includes a flexible protective portion, a first protective portion, and a second protective portion, the first protective portion and the second protective portion are respectively connected to opposite sides of the flexible protective portion, the thickness of the flexible protective portion is less than the thickness of the first protective portion, and the thickness of the flexible protective portion is less than the thickness of the second protective portion, the first protective portion is fixedly mounted on the first shell, and the second protective portion is fixedly mounted on the second shell, the flexible protective portion is retracted relative to the first protective portion and the second protective portion to form a notch, the dustproof mechanism is partially disposed in the notch, and the dustproof mechanism covers the edge of the flexible protective portion; The first housing includes a first bottom frame and a first middle frame protruding from an edge of the first bottom frame; the first protection portion includes a second main body portion and a second edge portion disposed around the second main body portion; the second housing includes a second bottom frame and a second middle frame protruding from an edge of the second bottom frame; the second protection portion includes a third main body portion and a third edge portion disposed around the third main body portion; The foldable display device includes a first adhesive layer and a second adhesive layer, wherein a portion of the first adhesive layer is disposed between the first middle frame and the second edge portion, and another portion of the first adhesive layer is disposed between the second middle frame and the third edge portion; the display panel includes a bending portion and a first non-bending portion and a second non-bending portion connected to both sides of the bending portion, wherein a portion of the second adhesive layer is disposed between the first non-bending portion and the first bottom frame, and another portion of the second adhesive layer is disposed between the second non-bending portion and the second bottom frame; The elastic modulus of the second adhesive layer is smaller than the elastic modulus of the first adhesive layer.

2. The foldable display device according to claim 1, wherein: Along a direction parallel to the bending axis of the hinge, the width of the flexible protecting portion is smaller than the width of the first protecting portion, and the width of the flexible protecting portion is smaller than the width of the second protecting portion.

3. The foldable display device according to claim 1, wherein: The dustproof mechanism includes a first front frame and a second front frame, the flexible protective portion includes a first main portion and first edge portions provided on opposite sides of the first main portion, the first main portion is provided on the display panel, and the first edge portions extend beyond the edge of the display panel; The first front frame is fixedly mounted on the first shell or the hinge, and covers an end of the first edge portion close to the first protective portion; the second front frame is fixedly mounted on the second shell or the hinge, and covers an end of the first edge portion close to the second protective portion.

4. The foldable display device according to claim 3, wherein: The hinge includes a third shell, a first support member and a second support member, the first support member is movably connected to one side of the third shell, the second support member is movably connected to the other side of the third shell, the first front frame is fixedly mounted on the first support member, and the second front frame is fixedly mounted on the second support member.

5. The foldable display device according to claim 4, wherein: The dustproof mechanism further includes a dustproof plug, which is disposed between the first front frame and the second front frame, and is fixedly mounted on the hinge. The dustproof plug partially covers the first edge portion.

6. The foldable display device according to claim 5, wherein: The dustproof mechanism also includes a soft strip, the first end of the soft strip is arranged between the first front frame and the first edge portion, the second end of the soft strip is arranged between the second front frame and the first edge portion, and the middle part of the soft strip is arranged between the dustproof plug and the first edge portion.

7. The foldable display device according to claim 6, wherein: The first end of the soft strip is fixedly connected to the first front frame, and the second end of the soft strip is fixedly connected to the second front frame.

8. The foldable display device according to claim 6, wherein: The soft strip is fixedly connected to the dust plug.

9. The foldable display device according to claim 6, wherein: When the folding display device is in a first state, the soft strip is located between the first shell and the second shell, and the soft strip is in a bent state; when the folding display device is in a second state, the soft strip is located on the side of the ultra-thin glass away from the shell, and the soft strip is in a stretched state.

10. The foldable display device according to claim 1, wherein: The second main body is provided on the display panel, the second edge extends beyond the edge of the display panel, and an end of the first middle frame away from the first bottom frame is fixedly connected to a side of the second edge close to the display panel; The third main body is arranged on the display panel, the third edge extends beyond the edge of the display panel, and an end of the second middle frame away from the second bottom frame is fixedly connected to a side of the third edge close to the display panel.

11. The foldable display device according to claim 10, wherein: The first non-bending portion is arranged on the first bottom frame, and the second non-bending portion is arranged on the second bottom frame.

12. The foldable display device according to claim 1, wherein: The display module further includes a replaceable protective film, which is arranged on a side of the ultra-thin glass away from the display panel.

13. The foldable display device according to claim 12, wherein: The display module also includes at least one explosion-proof layer, which is arranged on the surface of the ultra-thin glass close to or away from the replaceable protective film. The material of the explosion-proof layer includes a polymer material, and the elastic modulus of the explosion-proof layer is greater than or equal to 100 MPa and less than or equal to 10 GPa.

14. The foldable display device according to claim 13, wherein: The explosion-proof layer includes a first explosion-proof layer and a second explosion-proof layer. The first explosion-proof layer is arranged on the surface of the ultra-thin glass close to the replaceable protective film, and the second explosion-proof layer is arranged on the surface of the ultra-thin glass away from the replaceable protective film. The elastic modulus of the first explosion-proof layer is greater than or equal to the elastic modulus of the second explosion-proof layer.

15. The foldable display device according to claim 13, wherein: The polymer material includes polyurethane acrylate.

16. The foldable display device according to claim 1, wherein: The foldable display device further includes a light shielding layer, which is arranged on four edges of a surface of the ultra-thin glass away from the display panel.

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