Display device

Abstract

The invention discloses a display device which comprises a supporting layer, a display panel and a first filling piece, and the supporting layer comprises a first supporting layer and a second supporting layer; the display panel comprises a display part, a bending part and a binding part, the bending part is located between the display part and the binding part, the display part is located on the side, away from the second supporting layer, of the first supporting layer, the binding part is located on the side, away from the first supporting layer, of the second supporting layer, and a first filling area is formed between the bending part and the supporting layer; the display panel further comprises a metal layer and a first organic layer arranged on the side, close to the first supporting layer, of the metal layer, an open groove is formed in the surface of the side, away from the metal layer, of the first organic layer and corresponds to the bent part, the first filling part is arranged in the first filling area, and the open groove is filled with a part of the first filling part. The display device has the advantage that the problem of abnormal display caused by breakage of the metal wires of the metal layer of the display device can be solved.

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 disposed on the first supporting layer, and a portion of the display panel is bent from the area of ​​the lower frame 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 driving 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, resulting in display abnormalities of 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 wires of a metal layer of the display device.

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

[0005] A supporting layer, the 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 bending portion and a binding portion, the bending 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 bending portion and the supporting layer, the display panel further comprising a metal layer and a first organic layer being arranged on a side of the metal layer close to the first supporting layer, a surface of the first organic layer being away from the metal layer is provided with a groove, and the groove is arranged corresponding to the bending 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-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.

[0015] Furthermore, the display device further includes:

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

[0017] A cover plate, the cover plate is disposed on the display panel, and 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 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, wherein a groove is provided on the surface of the first organic layer on a side away from the metal layer, the groove is provided corresponding to the bending portion, and the first filling piece is provided in the first filling area, a part of the first filling piece fills the groove, and the elastic modulus of the first filling piece 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 display abnormality problem. On the other hand, the first filling piece 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 bending portion of a display device shown;

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

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

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

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

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

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

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

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

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

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

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

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

[0037] Fig.16 It 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 support layer; 200-second support 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 bonding layer; 1000-buffer layer; 1100-second bonding layer; 1200-third support layer; 1300-third bonding 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 clearly defined.

[0041] The first embodiment of the present application provides a first display device 10, referring to Figure 1-Figure 6 , Fig.16The display device 10 includes a supporting layer 20, a display panel 300 and a first filling member 400, wherein 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, wherein 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, and 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 a side of the metal layer 310 close to the first supporting layer 100. A surface of the first organic layer 320 on a side away from the metal layer 310 is provided with a groove 360, 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 set corresponding to the bending portion FF2, and the first filling piece is set in the first filling area SS1, a part of the first filling piece fills the groove, and the elastic modulus of the first filling piece 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 piece 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 3, the 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, the stress concentration of the display panel 300 during the bending process can be effectively reduced, thereby effectively preventing the metal layer 310 from being broken due to excessive stress; and because the groove 360 ​​does not completely penetrate the first organic layer 320, a part of the first organic layer 320 can form a packaging structure with a part of the inorganic layer 330 and 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 ​​to be equal to the thickness of the first organic layer 320, the display panel 300 can be bent more easily without being damaged when subjected to force.

[0045] In this embodiment, a third organic layer 350 is further disposed 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 the outer wall of the bending portion FF2 , wherein the protective layer 1500 covers a portion of the third organic layer 350 located at 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 shading layer 1400 , which is disposed on a surface of the glass cover plate 600 close to the second support plate, wherein in a top view of the display device 10 , a portion of the shading 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 An area S1 of a longitudinal section of the groove 360 ​​away from the metal layer 310 is larger than an area S2 of a 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 side of the groove close to the display portion is smaller than the area of ​​the side of the groove away from the display portion, and the area of ​​the side of the groove close to the binding portion is smaller than the area of ​​the side of the groove away from the binding portion. By setting the area of ​​the side of the groove close to the display portion to be smaller than the area of ​​the side of the groove away from the display portion, and the area of ​​the side of the groove close to the binding portion to be smaller than the area of ​​the side of the groove away 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 Fig.13 The slot 360 includes a plurality of sub-slots 361, and the plurality of sub-slots 361 are arranged at intervals. By setting the slot 360 to include a plurality of sub-slots 361, and the plurality of sub-slots 361 are arranged at intervals, on the one hand, the thickness of a part of the bending portion FF2 of the display panel 300 can be reduced, and the tensile stress of the metal layer 310 of the display panel 300 can be reduced; on the other hand, the plurality of sub-slots 361 can effectively disperse the stress of the metal layer 310, so that the stress of the metal layer 310 can be more uniform, and the problem of stress concentration of the metal layer 310 can be improved.

[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 plate portion. In this embodiment, reference Figure 2 , Fig.13 , along the path L from the display part FF1 to the middle area of ​​the bending part FF2, the number of the sub-grooves 361 increases gradually, and along the path M from the binding part FF3 to the middle area of ​​the bending part 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 part FF1 to the middle area of ​​the bending part FF2, the farther away from the display part FF1, the greater the stress of the bending part FF2, and along the path M from the binding part FF3 to the middle area of ​​the bending part FF2, the farther away from the binding part FF3, the greater the stress of the bending part FF2, therefore, along the paths L and M from the display part FF1 to the binding part FF3, the density of the sub-grooves 361 first increases and then decreases, so that the stress in the middle area of ​​the bending part FF2 can be smaller, thereby ensuring that the display panel 300 0, the tensile stress of the metal layer 310 of the bending portion FF2 can be smaller, 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, 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, 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 2, one end of the groove 360 ​​is located at the edge of the display part FF1, and the other end of the groove 360 ​​is located at the edge of the binding part FF3. By setting one end of the groove 360 ​​at the edge of the display part FF1, and the other end of the groove 360 ​​at the edge of the binding part FF3, that is, the groove 360 ​​is formed in the entire area of ​​the film layer of the bending part FF2 where the groove 360 ​​is provided, the entire area of ​​the bending part FF2 from the position where the bending part FF2 is connected to the display part FF1 to the position where the bending part FF2 is connected to the binding part FF3 is thinned, thereby ensuring that the tensile stress of the metal layer 310 in any area on the bending part FF2 of the display panel 300 can be smaller.

[0060] In this embodiment, reference Fig.14 , Fig.15 , Fig.16 , the display device further includes: a middle frame, a cover plate and a second filling member; wherein the support layer is arranged on the middle frame, and the display panel is arranged on the support layer; the cover plate is arranged on the display panel, and a second filling area SS2 is formed between the middle frame, the cover plate and the bending portion of the display panel; the second filling member is filled in the second filling area SS2. The cover plate is arranged on the display panel later, and a second filling area SS2 is formed between the middle frame, the cover plate and the bending portion of the display panel; the second filling member is filled in the second filling area SS2, so that the second filling member 700 can play a role in supporting the outer wall of the buffer bending portion FF2, thereby preventing the bending portion FF2 from interfering with the middle frame 500 when the display module falls, causing the display module to deform.

[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 bending portion can be improved, and the risk of cracking of the bending portion of the display device due to collision can be reduced.

[0062] The second embodiment of the present application provides a second display device 10, referring to Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 as well as Fig.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 also includes an inorganic layer 330, and the inorganic layer 330 is arranged 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 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.

[0063] By setting the groove 360 ​​to pass through at least a portion of the inorganic layer, a portion of the first filling member fills the groove that passes 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. 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 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, 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 bending portion FF2 can be further increased, and on the other hand, the inorganic layer 330 can prevent water vapor to ensure the waterproof performance of the display panel 300.

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

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

[0067] In this embodiment, the area of ​​the side of the groove close to the display portion is smaller than the area of ​​the side of the groove away from the display portion, and the area of ​​the side of the groove close to the binding portion is smaller than the area of ​​the side of the groove away from the binding portion. By setting the area of ​​the side of the groove close to the display portion to be smaller than the area of ​​the side of the groove away from the display portion, and the area of ​​the side of the groove close to the binding portion to be smaller than the area of ​​the side of the groove away 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 Fig.13 , the slot 360 includes a plurality of sub-slots 361, and the plurality of sub-slots 361 are arranged at intervals. By setting the slot 360 to include a plurality of sub-slots 361, and the plurality of sub-slots 361 are arranged at intervals, on the one hand, the thickness of a part of the bending portion FF2 of the display panel 300 can be reduced, and the tensile stress of the metal layer 310 of the display panel 300 can be reduced, and on the other hand, the anti-deformation ability of the bending portion FF2 can be ensured. On the one hand, the thickness of a part of the bending portion FF2 of the display panel 300 can be reduced, and the tensile stress of the metal layer 310 of the display panel 300 can be reduced, and on the other hand, the plurality of sub-slots 361 can effectively disperse the stress of the metal layer 310, so that the stress of the metal layer 310 can be more uniform, and the problem of stress concentration of the metal layer 310 can be improved.

[0069] 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 plate portion.

[0070] In this embodiment, reference Figure 2 , Fig.13, along the path L from the display part FF1 to the middle area of ​​the bending part FF2, the number of the sub-grooves 361 increases gradually, and along the path M from the binding part FF3 to the middle area of ​​the bending part 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 part FF1 to the middle area of ​​the bending part FF2, the farther away from the display part FF1, the greater the stress of the bending part FF2, and along the path M from the binding part FF3 to the middle area of ​​the bending part FF2, the farther away from the binding part FF3, the greater the stress of the bending part FF2, therefore, along the paths L and M from the display part FF1 to the binding part FF3, the density of the sub-grooves 361 first increases and then decreases, so that the stress in the middle area of ​​the bending part FF2 can be smaller, thereby ensuring that the display panel 300 0, the tensile stress of the metal layer 310 of the bending portion FF2 can be smaller, 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, 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, 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 part FF1, and the other end of the groove 360 ​​is located at the edge of the binding part FF3. By setting one end of the groove 360 ​​at the edge of the display part FF1, and the other end of the groove 360 ​​at the edge of the binding part FF3, that is, the groove 360 ​​is formed in the entire area of ​​the film layer of the bending part FF2 where the groove 360 ​​is provided, the entire area of ​​the bending part FF2 from the position where the bending part FF2 is connected to the display part FF1 to the position where the bending part FF2 is connected to the binding part FF3 is thinned, thereby ensuring that the tensile stress of the metal layer 310 in any area on the bending part FF2 of the display panel 300 can be smaller.

[0073] In this embodiment, reference Fig.14 , Fig.15 , Fig.16, the display device further includes: a middle frame, a cover plate and a second filling member; wherein the support layer is arranged on the middle frame, and the display panel is arranged on the support layer; the cover plate is arranged on the display panel, and a second filling area SS2 is formed between the middle frame, the cover plate and the bending portion of the display panel; the second filling member is filled in the second filling area SS2. The cover plate is arranged on the display panel later, and a second filling area SS2 is formed between the middle frame, the cover plate and the bending portion of the display panel; the second filling member is filled in the second filling area SS2, so that the second filling member 700 can play a role in supporting the outer wall of the buffer bending portion FF2, thereby preventing the bending portion FF2 from interfering with the middle frame 500 when the display module falls, causing the display module to deform.

[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 bending portion can be improved, and the risk of cracking of the bending portion of the display device due to collision can be reduced.

[0075] The third embodiment of the present application provides a third display device 10, referring to Figure 1 , Figure 2 , Fig.11 and Fig.12 The third embodiment is similar to the second embodiment, and the difference between the third embodiment and the second embodiment is that the display panel 300 also includes a second organic layer 340, and the second organic layer 340 is arranged 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 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.

[0076] By setting the groove 360 ​​to pass through at least a portion of the second organic layer, a portion of the first filling member fills and passes through at least a portion of the groove of the inorganic layer, and the elastic modulus of the first filling member 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 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, because the groove 360 ​​at least passes through a portion of the inorganic layer 330, the reduced material thickness 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, so that the border of the lower area of ​​the display device can be narrower.

[0077] In this embodiment, reference Fig.12 The area S5 of the longitudinal section of the groove 360 ​​away from the metal layer 310 is greater 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 side of the groove 360 ​​close to the display portion is smaller than the area of ​​the side of the groove 360 ​​away from the display portion, and the area of ​​the side of the groove 360 ​​close to the binding portion is smaller than the area of ​​the side of the groove 360 ​​away from the binding portion. By setting the area of ​​the side of the groove 360 ​​close to the display portion to be smaller than the area of ​​the side of the groove 360 ​​away from the display portion, and the area of ​​the side of the groove 360 ​​close to the binding portion to be smaller than the area of ​​the side of the groove 360 ​​away 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.

[0079] In this embodiment, reference Fig.13 The slot 360 includes a plurality of sub-slots 361, and the plurality of sub-slots 361 are arranged at intervals. By setting the slot 360 to include a plurality of sub-slots 361, and the plurality of sub-slots 361 are arranged at intervals, on the one hand, the thickness of a part of the bending portion FF2 of the display panel 300 can be reduced, and the tensile stress of the metal layer 310 of the display panel 300 can be reduced; on the other hand, the plurality of sub-slots 361 can effectively disperse the stress of the metal layer 310, so that the stress of the metal layer 310 can be more uniform, and the problem of stress concentration of the metal layer 310 can be improved.

[0080] In this embodiment, part of the sub-groove 361 is located at the edge of the display portion FF1, and part of the sub-groove 361 is located at the edge of the binding portion FF3. The area of ​​the sub-groove 361 located at the edge of the display portion FF1 is larger than the area of ​​the sub-groove 361 located in the middle area of ​​the bending portion FF2, and the area of ​​the sub-groove 361 located at the edge of the binding portion FF3 is larger than the area of ​​the sub-groove 361 located in the middle area of ​​the bending portion FF2. By setting the area of ​​the sub-groove 361 located at the edge of the display portion FF1 to be larger than the area of ​​the sub-groove 361 located in the middle area of ​​the bending portion FF2, and the area of ​​the sub-groove 361 located at the edge of the binding portion FF3 to be larger than the area of ​​the sub-groove 361 located in the middle area of ​​the bending portion FF2, the sub-groove 361 located at the edge of the display portion FF1 and the sub-groove 361 located at the edge of the binding portion FF3 can accommodate the first filling member 400, thereby preventing the first filling member 400 from overflowing to the corresponding areas of the display portion FF1 and the flat portion FF3.

[0081] In this embodiment, reference Figure 2 as well as Fig.13 , along the path L from the display part FF1 to the middle area of ​​the bending part FF2, the number of the sub-grooves 361 increases gradually, and along the path M from the binding part FF3 to the middle area of ​​the bending part 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 part FF1 to the middle area of ​​the bending part FF2, the farther away from the display part FF1, the greater the stress of the bending part FF2, and along the path M from the binding part FF3 to the middle area of ​​the bending part FF2, the farther away from the binding part FF3, the greater the stress of the bending part FF2, therefore, along the paths L and M from the display part FF1 to the binding part FF3, the density of the sub-grooves 361 first increases and then decreases, so that the stress in the middle area of ​​the bending part FF2 can be smaller, thereby ensuring that the display panel 300 0, the tensile stress of the metal layer 310 of the bending portion FF2 can be smaller, 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, 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, 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 2, one end of the groove 360 ​​is located at the edge of the display part FF1, and the other end of the groove 360 ​​is located at the edge of the binding part FF3. By setting one end of the groove 360 ​​at the edge of the display part FF1, and the other end of the groove 360 ​​at the edge of the binding part FF3, that is, the groove 360 ​​is formed in the entire area of ​​the film layer of the bending part FF2 where the groove 360 ​​is provided, the entire area of ​​the bending part FF2 from the position where the bending part FF2 is connected to the display part FF1 to the position where the bending part FF2 is connected to the binding part FF3 is thinned, thereby ensuring that the tensile stress of the metal layer 310 in any area on the bending part FF2 of the display panel 300 can be smaller.

[0084] In this embodiment, reference Fig.14 , Fig.15 , Fig.16 , the display device further includes: a middle frame 500, a cover plate 600 and a second filling member 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 filling area SS2 is formed between the middle frame 500, the cover plate 600 and the bending portion of the display panel 300; and the second filling member 700 is filled in the second filling area SS2. The cover plate 600 is disposed on the display panel 300, and a second filling area SS2 is formed between the middle frame 500, the cover plate 600 and the bending portion FF2 of the display panel 300; and the second filling member 700 is filled in the second filling area SS2, so that the second filling member 700 can play a role in supporting the outer wall of the buffer bending portion FF2, thereby preventing the bending portion FF2 from interfering with the middle frame 500500 when the display module falls, causing the display module to deform.

[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 bending portion FF2 can be improved, and the risk of cracking of the bending portion FF2 of the display device due to collision can be reduced.

[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 to be equal to the elastic modulus of the second filler 700, that is, the first filler 400 and the second filler 700 are made of the same material, when manufacturing the display device, the filling material can be injected into the first filling area and the second filling area 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 to be smaller than that of the second filler 700, on the one hand, the second filler 700 with a large elastic modulus can enhance the anti-deformation capability of the bending portion FF2, and on the other hand, the tensile stress of the metal layer of the display panel caused by the first filler 400 with a large elastic modulus can be reduced, which increases the risk of breaking the metal wire of the metal layer of the display device.

[0088] The above is a detailed description of the specific implementation of the present application. The above implementation disclosed in the present application is only the preferred implementation of the present application. For ordinary technicians in this field, many modifications and improvements can be made without departing from the concept of the present application. These modifications and improvements all fall within the scope of protection defined by the claims of the present application.

Claims

1. A display device, characterized in that: include: A supporting layer, the 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 bending portion and a binding portion, the bending 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 bending portion and the supporting layer, the display panel further comprising a metal layer and a first organic layer being arranged on a side of the metal layer close to the first supporting layer, a surface of the first organic layer being away from the metal layer is provided with a groove, and the groove is arranged corresponding to the bending 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, characterized in that 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, characterized in that: 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, characterized in that The area of ​​the longitudinal section of the groove at a side away from the metal layer is larger than the area of ​​the longitudinal section of the groove at a side close to the metal layer.

5. The display device according to claim 1, characterized in that 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, characterized in that: 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, characterized in that: 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, characterized in that: 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 disposed on the middle frame, and the display panel is disposed on the support layer; A cover plate, the cover plate is arranged on the display panel, and 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 filled in the second filling area.

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

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