Display device

Abstract

The present application discloses a display device comprising a support layer, a display panel, and a first filler. The support layer comprises a first support layer and a second support layer. The display panel comprises a display portion, a bent portion, and a binding portion. The bent portion is located between the display portion and the binding portion. The display portion is located on a side of the first support layer away from the second support layer. The binding portion is located on a side of the second support layer away from the first support layer. A first filling region is formed between the bent portion and the support layer. The display panel also comprises a metal layer and a first organic layer disposed on a side of the metal layer near the first support layer. A groove is provided on a surface of the first organic layer away from the metal layer, the groove being disposed corresponding to the bent portion. A first filler is disposed within the first filling region, with a portion of the first filler filling the groove. This advantageously improves display abnormalities caused by broken metal wires in the metal layer of the display device.

Description

Technical Field

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

[0002] An OLED (Organic Light Emitting Diode) display screen includes a first supporting layer, a display panel, and a second supporting layer. The display panel is arranged on the first supporting layer, and a portion of the display panel is bent from the lower frame area of ​​the OLED display screen to the back side of the second supporting layer, so that the metal wires of the metal layer of the display panel can be electrically connected to the driver chip on the back side of the second supporting layer. However, the metal wires of the bent portion of the display panel located in the lower frame area are prone to breakage, causing display abnormalities on the OLED display screen. Summary of the Invention

[0003] Embodiments of the present application provide a display device to improve the problem of display abnormality caused by the breakage of metal lines of a metal layer of the display device.

[0004] In a first aspect, an embodiment of the present application provides a display device, comprising:

[0005] A supporting layer, comprising a first supporting layer and a second supporting layer, wherein the second supporting layer is located on one side of the first supporting layer;

[0006] A display panel, the display panel comprising a display portion, a bent portion, and a binding portion, the bent portion being located between the display portion and the binding portion, the display portion being located on a side of the first supporting layer away from the second supporting layer, the binding portion being located on a side of the second supporting layer away from the first supporting layer, a first filling region being formed between the bent portion and the supporting layer, the display panel further comprising a metal layer and a first organic layer disposed on a side of the metal layer close to the first supporting layer, a surface of the first organic layer on a side away from the metal layer being provided with a groove, the groove being disposed corresponding to the bent portion;

[0007] A first filling member is disposed in the first filling region, a portion of the first filling member fills the groove, and an elastic modulus of the first filling member is smaller than an elastic modulus of the first organic layer.

[0008] Furthermore, the display panel also includes an inorganic layer, which is arranged on a surface of the first organic layer close to the metal layer, wherein the groove passes through at least a portion of the inorganic layer, a portion of the first filling member fills the groove through at least a portion of the inorganic layer, and the elastic modulus of the first filling member is smaller than the elastic modulus of the inorganic layer.

[0009] Furthermore, the display panel also includes a second organic layer, which is arranged on a surface of the inorganic layer close to the metal layer, wherein the groove passes through at least a portion of the second organic layer, a portion of the first filling member fills the groove passing through at least a portion of the second organic layer, and the elastic modulus of the first filling member is smaller than the elastic modulus of the second organic layer.

[0010] Furthermore, the area of ​​the longitudinal section of the groove away from the metal layer is larger than the area of ​​the longitudinal section of the groove close to the metal layer.

[0011] Furthermore, one end of the groove is located at an edge of the display portion, and the other end of the groove is located at an edge of the binding portion.

[0012] Furthermore, the area of ​​the groove close to the display portion is smaller than the area of ​​the groove away from the display portion, and the area of ​​the groove close to the binding portion is smaller than the area of ​​the groove away from the binding portion.

[0013] Furthermore, the slot includes a plurality of sub-slots, and the plurality of sub-slots are arranged at intervals.

[0014] Furthermore, part of the sub-grooves are located at the edge of the display part, and part of the sub-grooves are located at the edge of the binding part. The area of ​​the sub-grooves located at the edge of the display part is larger than the area of ​​the sub-grooves located in the middle area of ​​the bending part, and the area of ​​the sub-grooves located at the edge of the binding part is larger than the area of ​​the sub-grooves located in the middle area of ​​the bending part.

[0015] Furthermore, the display device further includes:

[0016] a middle frame, wherein the support layer is provided on the middle frame, and the display panel is provided on the support layer;

[0017] a cover plate, the cover plate being provided on the display panel, wherein a second filling area is formed between the middle frame, the cover plate and the bent portion of the display panel;

[0018] A second filling piece is provided, wherein the second filling piece is filled in the second filling area.

[0019] Furthermore, the elastic modulus of the first filling piece is greater than the elastic modulus of the second filling piece.

[0020] Beneficial effects of this application:

[0021] The present application provides a display device, which is provided with a groove on the surface of the first organic layer on the side away from the metal layer, the groove is arranged corresponding to the bending portion, and the first filler is arranged in the first filling area, a part of the first filler fills the groove, and the elastic modulus of the first filler is smaller than the elastic modulus of the first organic layer. On the one hand, the thickness of the material of the bending portion of the display panel can be thinned, and the tensile stress of the metal layer of the display panel can be reduced, thereby reducing the risk of breakage of the metal wire of the metal layer of the display device and improving the problem of display abnormality. On the other hand, the first filler can also support the inner side of the bending portion FF2 of the display panel 300 after bending, thereby improving the deformation resistance of the bending portion FF2. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a top view of the display device of the present application;

[0023] Figure 2 is a schematic diagram of a first display device of the present application;

[0024] Figure 3 yes Figure 2 A schematic diagram of a first structure of a bent portion of a display device is shown;

[0025] Figure 4 yes Figure 2 A schematic diagram of a second structure of a bent portion of a display device is shown;

[0026] Figure 5 yes Figure 2 A schematic diagram of a third structure of the bending portion of the display device shown;

[0027] Figure 6 yes Figure 2 A schematic diagram of a fourth structure of the bending portion of the display device shown;

[0028] Figure 7 yes Figure 2 A schematic diagram of a fifth structure of the bending portion of the display device shown;

[0029] Figure 8 yes Figure 2 A schematic diagram of a sixth structure of the bending portion of the display device shown;

[0030] Figure 9 yes Figure 2 A schematic diagram of a seventh structure of the bending portion of the display device shown;

[0031] Figure 10 yes Figure 2 A schematic diagram of an eighth structure of the bending portion of the display device shown;

[0032] Figure 11 yes Figure 2 A schematic diagram of a ninth structure of the bending portion of the display device shown;

[0033] Figure 12 yes Figure 2 A schematic diagram of a tenth structure of the bending portion of the display device shown;

[0034] Figure 13 yes Figure 2 A schematic diagram of an eleventh structure of a bending portion of a display device shown;

[0035] Figure 14 is a schematic diagram of a second display device of the present application;

[0036] Figure 15 is a schematic diagram of a third display device of the present application;

[0037] Figure 16 This is a schematic diagram showing that the first filling area of ​​the display device of the present application is not filled with the first filling member, and the second filling area is not filled with the second filling member.

[0038] 10-display device; 20-support layer, 100-first supporting layer; 200-second supporting layer; 300-display panel, 310-metal layer, 320-first organic layer, 330-inorganic layer, 340-second organic layer, 350-third organic layer, 360-groove, 361-sub-groove; 400-first filling piece; 500-middle frame; 600-cover plate; 700-second filling piece; 800-driving chip; 900-first adhesive layer; 1000-buffer layer; 1100-second adhesive layer; 1200-third supporting layer; 1300-third adhesive layer; 1400-light-shielding layer; 1500-protective layer. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The technical solutions described below are only used to explain and illustrate the ideas of the present application and should not be regarded as limiting the scope of protection of the present application.

[0040] In addition, the terms "first", "second" and similar words do not indicate any order, quantity or importance, but are only used to distinguish different technical features. The term "plurality" and similar words mean two or more, unless otherwise expressly limited.

[0041] The first embodiment of the present application provides a first display device 10, referring to Figures 1-6 、 Figure 16The display device 10 includes a supporting layer 20, a display panel 300 and a first filling member 400. The second supporting layer 200 is located on one side of the first supporting layer 100. The display panel 300 includes a display portion FF1, a bending portion FF2 and a binding portion FF3. The bending portion FF2 is located between the display portion FF1 and the binding portion FF3. The display portion FF1 is located on a side of the first supporting layer 100 away from the second supporting layer 200. The binding portion FF3 is located on a side of the second supporting layer 200 away from the first supporting layer 100. The bending portion FF2 A first filling area SS1 is formed between the display panel 300 and the supporting layer. The display panel 300 also includes a metal layer 310 and a first organic layer 320 arranged on the side of the metal layer 310 close to the first supporting layer 100. A groove 360 ​​is provided on the surface of the first organic layer 320 on the side away from the metal layer 310, and the groove 360 ​​is arranged corresponding to the bending portion FF2; the first filling member is arranged in the first filling area SS1, a part of the first filling member fills the groove, and the elastic modulus of the first filling member is smaller than the elastic modulus of the first organic layer.

[0042] By providing a groove 360 ​​on the surface of the first organic layer 320 on the side away from the metal layer 310, the groove 360 ​​is provided corresponding to the bending portion FF2, and the first filling member is provided in the first filling area SS1, a part of the first filling member fills the groove, and the elastic modulus of the first filling member is smaller than the elastic modulus of the first organic layer. On the one hand, the thickness of the material of the bending portion of the display panel can be thinned, and the tensile stress of the metal layer 310 of the display panel 300 can be reduced, thereby reducing the risk of breakage of the metal wire of the metal layer 310 of the display device 10 and improving the display abnormality problem. On the other hand, the first filling member can also support the inner side of the bending portion FF2 of the display panel 300 after bending, thereby improving the deformation resistance of the bending portion FF2. At the same time, when the display panel 300 is bent, the bending radius of the bending portion FF2 can be further reduced, thereby making it easier to achieve a narrow frame in the lower area of ​​the display device.

[0043] In this embodiment, reference Figure 3The depth H1 of the groove 360 ​​is greater than 1 / 2 of the thickness of the first organic layer 320. By setting the depth H1 of the groove 360 ​​to be greater than 1 / 2 of the thickness of the first organic layer 320, stress concentration during bending of the display panel 300 can be effectively reduced, thereby effectively preventing the metal layer 310 from breaking due to excessive stress. Furthermore, because the groove 360 ​​does not completely penetrate the first organic layer 320, a portion of the first organic layer 320 can form an encapsulation structure with the inorganic layer 330 and a portion of the second organic layer 340, thereby improving the waterproofness of the display panel 300 of the display device 10.

[0044] In this embodiment, reference Figure 5 The depth H2 of the groove 360 ​​is equal to the thickness of the first organic layer 320. By setting the depth H2 of the groove 360 ​​equal to the thickness of the first organic layer 320, the display panel 300 can bend more easily without being damaged when subjected to force.

[0045] In this embodiment, a third organic layer 350 is further provided on a side of the metal layer 310 away from the substrate.

[0046] In this embodiment, the display device 10 further includes a protective layer 1500 , which is disposed on an outer wall of the bending portion FF2 , and covers a portion of the third organic layer 350 located on the bending portion FF2 .

[0047] In this embodiment, the display device 10 further includes a driving chip 800 . The driving chip 800 is disposed on a side of the second supporting layer 200 away from the first supporting layer 100 , wherein the binding portion FF3 is electrically connected to the driving chip 800 .

[0048] In this embodiment, the first supporting layer 100 is located above the second supporting layer 200 .

[0049] In this embodiment, the display device 10 further includes a first adhesive layer 900, a buffer layer 1000, a second adhesive layer 1100, a third supporting layer 1200, a third adhesive layer 1300 and a cover plate 600. The first adhesive layer 900 is disposed on the second supporting layer 200, and the first adhesive layer 900 is located between the second supporting layer 200 and the first supporting layer 100. The buffer layer 1000 is disposed on a surface of the first adhesive layer 900 away from the second supporting layer 200. The second adhesive layer 1100 is disposed on a surface of the display panel 300 away from the second supporting layer 200. The third supporting layer 1200 is disposed on a surface of the second adhesive layer 1100 away from the second supporting layer 200. The third adhesive layer 1300 is disposed on a surface of the third supporting layer 1200 away from the second supporting layer 200. The cover plate 600 is disposed on a surface of the third adhesive layer 1300 away from the second supporting layer 200.

[0050] In this embodiment, the display device 10 further includes a light shielding layer 1400 , which is disposed on a surface of the glass cover plate 600 close to the second support plate. In the top view of the display device 10 , a portion of the light shielding layer 1400 covers the display portion FF1 and the bending portion FF2 .

[0051] In this embodiment, the light shielding layer 1400 is black ink.

[0052] In this embodiment, reference Figure 4 The area S1 of the longitudinal section of the groove 360 ​​away from the metal layer 310 is larger than the area S2 of the longitudinal section of the groove 360 ​​close to the metal layer 310 .

[0053] The longitudinal section of the slot 360 is perpendicular to the thickness direction of the bending portion FF2.

[0054] In this embodiment, reference Figure 4 , from the side of the groove 360 ​​away from the metal layer 310 to the side of the groove 360 ​​close to the metal layer 310, the area of ​​the groove 360 ​​decreases gradually.

[0055] In this embodiment, the area of ​​the groove near the display portion is smaller than the area of ​​the groove far from the display portion, and the area of ​​the groove near the binding portion is smaller than the area of ​​the groove far from the binding portion. By setting the area of ​​the groove near the display portion to be smaller than the area of ​​the groove far from the display portion, and the area of ​​the groove near the binding portion to be smaller than the area of ​​the groove far from the binding portion, the metal layer 310 can better conform to the bending deformation of the bending portion FF2, thereby improving the deformation resistance of the metal layer 310 of the bending portion FF2.

[0056] In this embodiment, reference Figure 13 The slot 360 includes a plurality of sub-slots 361, which are spaced apart. By providing the slot 360 with a plurality of sub-slots 361, which are spaced apart, the thickness of a portion of the bent portion FF2 of the display panel 300 can be reduced, thereby lowering the tensile stress of the metal layer 310 of the display panel 300. Furthermore, the plurality of sub-slots 361 can effectively disperse the stress of the metal layer 310, making the stress of the metal layer 310 more uniform and improving the stress concentration problem of the metal layer 310.

[0057] In this embodiment, part of the sub-grooves are located at the edge of the display portion, and part of the sub-grooves are located at the edge of the binding portion. The area of ​​the sub-grooves located at the edge of the display portion is larger than the area of ​​the sub-grooves located in the middle area of ​​the bending portion, and the area of ​​the sub-grooves located at the edge of the binding portion is larger than the area of ​​the sub-grooves located in the middle area of ​​the bending portion. By setting the area of ​​the sub-grooves located at the edge of the display portion to be larger than the area of ​​the sub-grooves located in the middle area of ​​the bending portion, and the area of ​​the sub-grooves located at the edge of the binding portion to be larger than the area of ​​the sub-grooves located in the middle area of ​​the bending portion, the sub-grooves located at the edge of the display portion and the sub-grooves located at the edge of the binding portion can accommodate the first filling member, thereby preventing the first filling member from overflowing to the corresponding areas of the display portion and the flat panel portion. In this embodiment, referring to Figure 2 、 Figure 13 , along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the number of the sub-grooves 361 increases gradually, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the number of the sub-grooves 361 increases gradually. Since when the display panel 300 is bent, along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the farther away from the display portion FF1, the greater the stress of the bending portion FF2, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the farther away from the binding portion FF3, the greater the stress of the bending portion FF2, it is set that along the paths L and M from the display portion FF1 to the binding portion FF3, the density of the sub-grooves 361 first increases and then decreases, so that the stress in the middle area of ​​the bending portion FF2 can be smaller, thereby ensuring that the display panel 300 0 can have a smaller tensile stress on the metal layer 310 of the bending portion FF2, thereby reducing the risk of breakage of the metal wires of the metal layer 310 of the display device 10; at the same time, along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the farther away from the display portion FF1, the denser the sub-grooves 361 are, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the farther away from the binding portion FF3, the denser the sub-grooves 361 are, so that the metal layer 310 can better conform to the bending deformation of the bending portion FF2, thereby improving the deformation resistance of the metal layer 310 of the bending portion FF2.

[0058] In this embodiment, the areas of two adjacent sub-grooves 361 are equal.

[0059] In this embodiment, reference Figure 2One end of the groove 360 ​​is located at the edge of the display portion FF1, and the other end of the groove 360 ​​is located at the edge of the binding portion FF3. By arranging one end of the groove 360 ​​at the edge of the display portion FF1 and the other end of the groove 360 ​​at the edge of the binding portion FF3, that is, by forming the groove 360 ​​in the entire region of the film layer of the bent portion FF2 where the groove 360 ​​is provided, the entire region of the bent portion FF2 from the position where it connects with the display portion FF1 to the position where it connects with the binding portion FF3 is thinned, thereby ensuring that the tensile stress of the metal layer 310 in any region of the bent portion FF2 of the display panel 300 is reduced.

[0060] In this embodiment, reference Figure 14 、 Figure 15 、 Figure 16 The display device further includes: a middle frame, a cover plate, and a second filling member; wherein the support layer is provided on the middle frame, and the display panel is provided on the support layer; the cover plate is provided on the display panel, and a second filling area SS2 is formed between the middle frame, the cover plate, and the bent portion of the display panel; and the second filling member is filled in the second filling area SS2. By subsequently providing the cover plate on the display panel, a second filling area SS2 is formed between the middle frame, the cover plate, and the bent portion of the display panel; and the second filling member is filled in the second filling area SS2, so that the second filling member 700 can support the outer wall of the buffer bent portion FF2, thereby preventing the bent portion FF2 from interfering with the middle frame 500 when the display module falls, causing deformation of the display module.

[0061] In this embodiment, the elastic modulus of the first filler is greater than that of the second filler. By setting the elastic modulus of the first filler to be greater than that of the second filler, the flexibility of the outer side of the bent portion can be improved, reducing the risk of the bent portion of the display device cracking due to collisions.

[0062] The second embodiment of the present application provides a second display device 10, referring to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 as well as Figure 10The second embodiment is similar to the first embodiment, and the difference between the second embodiment and the first embodiment is that the display panel 300 further includes an inorganic layer 330, and the inorganic layer 330 is provided on a surface of the first organic layer 320 close to the metal layer 310, wherein the groove 360 ​​passes through at least a portion of the inorganic layer, a portion of the first filler fills the groove passing through at least a portion of the inorganic layer, and the elastic modulus of the first filler is smaller than the elastic modulus of the inorganic layer.

[0063] By setting the groove 360 ​​to pass through at least a portion of the inorganic layer, a portion of the first filler fills the groove passing through at least a portion of the inorganic layer, and the elastic modulus of the first filler is smaller than the elastic modulus of the inorganic layer. On the one hand, the thickness of the material of the bending portion of the display panel can be further thinned, thereby further reducing the tensile stress of the metal layer 310 of the display panel 300, thereby reducing the risk of breakage of the metal wire of the metal layer 310 of the display device 10, and improving the problem of display abnormality. On the other hand, the first filler can also support the inner side of the bending portion FF2 of the display panel 300 after bending, thereby improving the deformation resistance of the bending portion FF2. At the same time, since the groove 360 ​​passes through at least a portion of the inorganic layer, the reduced material thickness of the bending portion FF2 of the display panel is further increased. Then, when the display panel 300 is bent, the bending radius of the bending portion FF2 can be further reduced, thereby making the border of the lower area of ​​the display device narrower.

[0064] In this embodiment, reference Figure 7 and Figure 8 , the groove 360 ​​passes through a portion of the inorganic layer 330. By setting the groove 360 ​​to pass through a portion of the inorganic layer 330, that is, the inorganic layer 330 is not completely penetrated by the groove 360, on the one hand, the reduced thickness of the bent portion FF2 can be further increased, and on the other hand, the inorganic layer 330 can prevent water vapor, thereby ensuring the waterproof performance of the display panel 300.

[0065] In this embodiment, reference Figure 9 and Figure 10 , the groove 360 ​​completely passes through the inorganic layer 330 .

[0066] In this embodiment, an area S3 of the longitudinal section of the groove 360 ​​at a side away from the metal layer 310 is larger than an area S4 of the longitudinal section of the groove 360 ​​at a side close to the metal layer 310 .

[0067] In this embodiment, the area of ​​the groove near the display portion is smaller than the area of ​​the groove far from the display portion, and the area of ​​the groove near the binding portion is smaller than the area of ​​the groove far from the binding portion. By setting the area of ​​the groove near the display portion to be smaller than the area of ​​the groove far from the display portion, and the area of ​​the groove near the binding portion to be smaller than the area of ​​the groove far from the binding portion, the metal layer 310 can better conform to the bending deformation of the bending portion FF2, thereby improving the deformation resistance of the metal layer 310 of the bending portion FF2.

[0068] In this embodiment, reference Figure 13 The slot 360 includes a plurality of sub-slots 361, and the plurality of sub-slots 361 are spaced apart. By providing the slot 360 with a plurality of sub-slots 361, and the plurality of sub-slots 361 being spaced apart, the thickness of a portion of the bent portion FF2 of the display panel 300 can be reduced, thereby reducing the tensile stress of the metal layer 310 of the display panel 300. On the other hand, the deformation resistance of the bent portion FF2 can be ensured. On the one hand, the thickness of a portion of the bent portion FF2 of the display panel 300 can be reduced, thereby reducing the tensile stress of the metal layer 310 of the display panel 300. On the other hand, the plurality of sub-slots 361 can effectively disperse the stress of the metal layer 310, making the stress of the metal layer 310 more uniform and improving the stress concentration problem of the metal layer 310.

[0069] In this embodiment, some of the sub-grooves are located at the edge of the display portion, and some of the sub-grooves are located at the edge of the binding portion. The area of ​​the sub-grooves located at the edge of the display portion is larger than the area of ​​the sub-grooves located in the middle region of the bent portion, and the area of ​​the sub-grooves located at the edge of the binding portion is larger than the area of ​​the sub-grooves located in the middle region of the bent portion. By setting the area of ​​the sub-grooves located at the edge of the display portion to be larger than the area of ​​the sub-grooves located in the middle region of the bent portion, and the area of ​​the sub-grooves located at the edge of the binding portion to be larger than the area of ​​the sub-grooves located in the middle region of the bent portion, the sub-grooves located at the edge of the display portion and the sub-grooves located at the edge of the binding portion can accommodate the first filling member, thereby preventing the first filling member from overflowing into the corresponding areas of the display portion and the flat portion.

[0070] In this embodiment, reference Figure 2 、 Figure 13, along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the number of the sub-grooves 361 increases gradually, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the number of the sub-grooves 361 increases gradually. Since when the display panel 300 is bent, along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the farther away from the display portion FF1, the greater the stress of the bending portion FF2, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the farther away from the binding portion FF3, the greater the stress of the bending portion FF2, therefore, along the paths L and M from the display portion FF1 to the binding portion FF3, the density of the sub-grooves 361 first increases and then decreases, so that the stress in the middle area of ​​the bending portion FF2 can be smaller, thereby ensuring that the display panel 300 0 can have a smaller tensile stress on the metal layer 310 of the bending portion FF2, thereby reducing the risk of breakage of the metal wires of the metal layer 310 of the display device 10; at the same time, along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the farther away from the display portion FF1, the denser the sub-grooves 361 are, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the farther away from the binding portion FF3, the denser the sub-grooves 361 are, so that the metal layer 310 can better conform to the bending deformation of the bending portion FF2, thereby improving the deformation resistance of the metal layer 310 of the bending portion FF2.

[0071] In this embodiment, the areas of two adjacent sub-grooves 361 are equal.

[0072] In this embodiment, reference Figure 2 One end of the groove 360 ​​is located at the edge of the display portion FF1, and the other end of the groove 360 ​​is located at the edge of the binding portion FF3. By arranging one end of the groove 360 ​​at the edge of the display portion FF1 and the other end of the groove 360 ​​at the edge of the binding portion FF3, that is, by forming the groove 360 ​​in the entire region of the film layer of the bent portion FF2 where the groove 360 ​​is provided, the entire region of the bent portion FF2 from the position where it connects with the display portion FF1 to the position where it connects with the binding portion FF3 is thinned, thereby ensuring that the tensile stress of the metal layer 310 in any region of the bent portion FF2 of the display panel 300 is reduced.

[0073] In this embodiment, reference Figure 14 、 Figure 15 、 Figure 16The display device further includes: a middle frame, a cover plate, and a second filling member; wherein the support layer is provided on the middle frame, and the display panel is provided on the support layer; the cover plate is provided on the display panel, and a second filling area SS2 is formed between the middle frame, the cover plate, and the bent portion of the display panel; and the second filling member is filled in the second filling area SS2. By subsequently providing the cover plate on the display panel, a second filling area SS2 is formed between the middle frame, the cover plate, and the bent portion of the display panel; and the second filling member is filled in the second filling area SS2, so that the second filling member 700 can support the outer wall of the buffer bent portion FF2, thereby preventing the bent portion FF2 from interfering with the middle frame 500 when the display module falls, causing deformation of the display module.

[0074] In this embodiment, the elastic modulus of the first filler is greater than that of the second filler. By setting the elastic modulus of the first filler to be greater than that of the second filler, the flexibility of the outer side of the bent portion can be improved, reducing the risk of the bent portion of the display device cracking due to collisions.

[0075] The third embodiment of the present application provides a third display device 10, referring to Figure 1 、 Figure 2 、 Figure 11 and Figure 12 The third embodiment is similar to the second embodiment. The difference between the third embodiment and the second embodiment is that the display panel 300 further includes a second organic layer 340, and the second organic layer 340 is provided on a surface of the inorganic layer 330 close to the metal layer 310, wherein the groove 360 ​​passes through at least a portion of the second organic layer, a portion of the first filler fills the groove passing through at least a portion of the second organic layer, and the elastic modulus of the first filler is smaller than the elastic modulus of the second organic layer.

[0076] By setting the groove 360 ​​to pass through at least a portion of the second organic layer, a portion of the first filler fills the groove passing through at least a portion of the inorganic layer, and the elastic modulus of the first filler is smaller than the elastic modulus of the inorganic layer. On the one hand, the thickness of the material of the bending portion of the display panel can be further thinned, thereby further reducing the tensile stress of the metal layer 310 of the display panel 300, thereby reducing the risk of breakage of the metal wire of the metal layer 310 of the display device 10, and improving the display abnormality problem. On the other hand, the first filler can also support the inner side of the bending portion FF2 of the display panel 300 after bending, thereby improving the deformation resistance of the bending portion FF2. At the same time, since the groove 360 ​​passes through at least a portion of the inorganic layer 330, the thickness of the reduced material of the bending portion FF2 is further increased. Then, when the display panel 300 is bent, the bending radius of the bending portion FF2 can be further reduced, thereby making the border of the lower area of ​​the display device narrower.

[0077] In this embodiment, reference Figure 12 The area S5 of the longitudinal section of the groove 360 ​​away from the metal layer 310 is larger than the area S6 of the longitudinal section of the groove 360 ​​close to the metal layer 310 .

[0078] In this embodiment, the area of ​​the groove 360 ​​on the side close to the display portion is smaller than the area of ​​the groove 360 ​​on the side close to the binding portion. The area of ​​the groove 360 ​​on the side close to the binding portion is smaller than the area of ​​the groove 360 ​​on the side close to the binding portion. By setting the area of ​​the groove 360 ​​on the side close to the display portion to be smaller than the area of ​​the groove 360 ​​on the side close to the binding portion to be smaller than the area of ​​the groove 360 ​​on the side close to the binding portion, the metal layer 310 can better conform to the bending deformation of the bending portion FF2, thereby improving the deformation resistance of the metal layer 310 of the bending portion FF2.

[0079] In this embodiment, reference Figure 13 The slot 360 includes a plurality of sub-slots 361, which are spaced apart. By providing the slot 360 with a plurality of sub-slots 361, which are spaced apart, the thickness of a portion of the bent portion FF2 of the display panel 300 can be reduced, thereby lowering the tensile stress of the metal layer 310 of the display panel 300. Furthermore, the plurality of sub-slots 361 can effectively disperse the stress of the metal layer 310, making the stress of the metal layer 310 more uniform and improving the stress concentration problem of the metal layer 310.

[0080] In this embodiment, some of the sub-grooves 361 are located at the edge of the display portion FF1, and some are located at the edge of the binding portion FF3. The area of ​​the sub-grooves 361 at the edge of the display portion FF1 is larger than the area of ​​the sub-grooves 361 located in the middle region of the bent portion FF2, and the area of ​​the sub-grooves 361 at the edge of the binding portion FF3 is larger than the area of ​​the sub-grooves 361 located in the middle region of the bent portion FF2. By setting the area of ​​the sub-grooves 361 at the edge of the display portion FF1 larger than the area of ​​the sub-grooves 361 located in the middle region of the bent portion FF2, and the area of ​​the sub-grooves 361 at the edge of the binding portion FF3 larger than the area of ​​the sub-grooves 361 located in the middle region of the bent portion FF2, the sub-grooves 361 at the edge of the display portion FF1 and the sub-grooves 361 at the edge of the binding portion FF3 can accommodate the first filler 400, thereby preventing the first filler 400 from overflowing into the corresponding areas of the display portion FF1 and the flat portion FF3.

[0081] In this embodiment, reference Figure 2 as well as Figure 13 , along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the number of the sub-grooves 361 increases gradually, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the number of the sub-grooves 361 increases gradually. Since when the display panel 300 is bent, along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the farther away from the display portion FF1, the greater the stress of the bending portion FF2, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the farther away from the binding portion FF3, the greater the stress of the bending portion FF2, it is set that along the paths L and M from the display portion FF1 to the binding portion FF3, the density of the sub-grooves 361 first increases and then decreases, so that the stress in the middle area of ​​the bending portion FF2 can be smaller, thereby ensuring that the display panel 300 0 can have a smaller tensile stress on the metal layer 310 of the bending portion FF2, thereby reducing the risk of breakage of the metal wires of the metal layer 310 of the display device 10; at the same time, along the path L from the display portion FF1 to the middle area of ​​the bending portion FF2, the farther away from the display portion FF1, the denser the sub-grooves 361 are, and along the path M from the binding portion FF3 to the middle area of ​​the bending portion FF2, the farther away from the binding portion FF3, the denser the sub-grooves 361 are, so that the metal layer 310 can better conform to the bending deformation of the bending portion FF2, thereby improving the deformation resistance of the metal layer 310 of the bending portion FF2.

[0082] In this embodiment, the areas of two adjacent sub-grooves 361 are equal.

[0083] In this embodiment, reference Figure 2One end of the groove 360 ​​is located at the edge of the display portion FF1, and the other end of the groove 360 ​​is located at the edge of the binding portion FF3. By arranging one end of the groove 360 ​​at the edge of the display portion FF1 and the other end of the groove 360 ​​at the edge of the binding portion FF3, that is, by forming the groove 360 ​​in the entire region of the film layer of the bent portion FF2 where the groove 360 ​​is provided, the entire region of the bent portion FF2 from the position where it connects with the display portion FF1 to the position where it connects with the binding portion FF3 is thinned, thereby ensuring that the tensile stress of the metal layer 310 in any region of the bent portion FF2 of the display panel 300 is reduced.

[0084] In this embodiment, reference Figure 14 、 Figure 15 、 Figure 16 The display device further includes: a middle frame 500, a cover plate 600, and a second filler 700; wherein the support layer 20 is disposed on the middle frame 500, and the display panel is disposed on the support layer 20; the cover plate 600 is disposed on the display panel 300, and a second filler region SS2 is formed between the middle frame 500, the cover plate 600, and the bent portion of the display panel 300; and the second filler 700 is filled in the second filler region SS2. By subsequently disposing the cover plate 600 on the display panel 300, a second filler region SS2 is formed between the middle frame 500, the cover plate 600, and the bent portion FF2 of the display panel 300; and the second filler 700 is filled in the second filler region SS2, so that the second filler 700 can support the outer wall of the buffer bent portion FF2, thereby preventing the bent portion FF2 from interfering with the middle frame 500500 when the display module falls, causing deformation of the display module.

[0085] In this embodiment, the elastic modulus of the first filler 400 is greater than the elastic modulus of the second filler 700. By setting the elastic modulus of the first filler 400 to be greater than the elastic modulus of the second filler 700, the flexibility of the outer side of the folding portion FF2 can be improved, reducing the risk of the folding portion FF2 cracking due to collisions in the display device.

[0086] In this embodiment, the elastic modulus of the first filler 400 is equal to the elastic modulus of the second filler 700. By setting the elastic modulus of the first filler 400 equal to the elastic modulus of the second filler 700, that is, by using the same material for the first filler 400 and the second filler 700, when manufacturing the display device, filling material can be injected into the first filling region and the second filling region at the same time, thereby reducing the difficulty of manufacturing the display device.

[0087] In this embodiment, the elastic modulus of the first filler 400 is smaller than that of the second filler 700. By setting the elastic modulus of the first filler 400 smaller than that of the second filler 700, the second filler 700 having a larger elastic modulus can, on the one hand, enhance the deformation resistance of the bent portion FF2, and, on the other hand, reduce the increased tensile stress in the metal layer of the display panel caused by the use of the first filler 400 having a larger elastic modulus, thereby reducing the risk of increased breakage of the metal wires in the metal layer of the display device.

[0088] The above describes in detail the specific embodiments of the present application. The above embodiments disclosed in this application are merely preferred embodiments of the present application. Those skilled in the art will appreciate that many variations and improvements can be made without departing from the spirit of the present application. These variations and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display device, characterized in that: include: A supporting layer, comprising a first supporting layer and a second supporting layer, wherein the second supporting layer is located on one side of the first supporting layer; A display panel, the display panel comprising a display portion, a bent portion, and a binding portion, the bent portion being located between the display portion and the binding portion, the display portion being located on a side of the first supporting layer away from the second supporting layer, the binding portion being located on a side of the second supporting layer away from the first supporting layer, a first filling region being formed between the bent portion and the supporting layer, the display panel further comprising a metal layer and a first organic layer disposed on a side of the metal layer close to the first supporting layer, a surface of the first organic layer on a side away from the metal layer being provided with a groove, the groove being disposed corresponding to the bent portion; A first filling member is disposed in the first filling region, a portion of the first filling member fills the groove, and an elastic modulus of the first filling member is smaller than an elastic modulus of the first organic layer.

2. The display device according to claim 1, wherein The display panel also includes an inorganic layer, which is arranged on a surface of the first organic layer close to the metal layer, wherein the groove passes through at least a portion of the inorganic layer, a portion of the first filling member fills the groove passing through at least a portion of the inorganic layer, and the elastic modulus of the first filling member is smaller than the elastic modulus of the inorganic layer.

3. The display device according to claim 2, wherein: The display panel also includes a second organic layer, which is arranged on a surface of the inorganic layer close to the metal layer, wherein the groove passes through at least a portion of the second organic layer, a portion of the first filling member fills the groove passing through at least a portion of the second organic layer, and the elastic modulus of the first filling member is smaller than the elastic modulus of the second organic layer.

4. The display device according to claim 1, wherein An area of ​​a longitudinal section of the groove at a side away from the metal layer is larger than an area of ​​a longitudinal section of the groove at a side close to the metal layer.

5. The display device according to claim 1, wherein One end of the groove is located at the edge of the display portion, and the other end of the groove is located at the edge of the binding portion.

6. The display device according to claim 1, wherein The area of ​​the groove close to the display portion is smaller than the area of ​​the groove away from the display portion, and the area of ​​the groove close to the binding portion is smaller than the area of ​​the groove away from the binding portion.

7. The display device according to claim 1, wherein The slot includes a plurality of sub-slots, and the plurality of sub-slots are arranged at intervals.

8. The display device according to claim 7, wherein: Part of the sub-groove is located at the edge of the display part, and part of the sub-groove is located at the edge of the binding part. The area of ​​the sub-groove located at the edge of the display part is larger than the area of ​​the sub-groove located in the middle area of ​​the bending part, and the area of ​​the sub-groove located at the edge of the binding part is larger than the area of ​​the sub-groove located in the middle area of ​​the bending part.

9. The display device according to any one of claims 1 to 8, characterized in that: The display device further includes: a middle frame, wherein the support layer is provided on the middle frame, and the display panel is provided on the support layer; a cover plate, the cover plate being provided on the display panel, wherein a second filling area is formed between the middle frame, the cover plate and the bent portion of the display panel; A second filling piece is provided, wherein the second filling piece is filled in the second filling area.

10. The display device according to claim 9, wherein The elastic modulus of the first filling member is greater than the elastic modulus of the second filling member.

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