Display panel, display module and display device

By using support layers of different stiffness in the display panel, the bending performance and border narrowness of the display panel are improved, and the requirements for improving the performance of the existing display panel are solved, achieving higher display effects and mechanical performance.

CN119923160APending Publication Date: 2025-05-02HEFEI VISIONOX TECH CO LTD
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Patent Information

Application Number
CN202510121683.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2025-05-02

AI Technical Summary

Technical Problem

The performance of existing display screens needs to be improved, especially in terms of the bend radius and frame width of the bend.

Method used

By introducing a support layer with different stiffnesses into the display panel, the stiffness of the first support layer is greater than that of the second support layer, and the second support layer is at least partially disposed at the bent portion and fits with the bent portion, thereby improving the bendability of the second support layer.

Benefits of technology

A narrower bezel and higher display panel performance are achieved, by reducing the bending radius of the bend and improving the reliability and optical performance of the first flat part.

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Abstract

The invention provides a display panel, a display module and a display device.The display panel comprises a screen body and supporting layers, the screen body comprises a first flat part, a bent part and a second flat part which are sequentially connected, the first flat part and the second flat part are stacked and arranged at intervals, and the supporting layers comprise the first supporting layer and the second supporting layer; the first supporting layer is arranged between the first flat part and the second flat part. According to the display panel provided by the invention, the first flat part is supported by the first supporting layer, the bending part is supported by the second supporting layer, and the rigidity of the second supporting layer is smaller than that of the first supporting layer, so that the bending performance of the second supporting layer is improved, the bending radius of the bending part is reduced, and a narrower frame is realized. Meanwhile, the rigidity of the first supporting layer is larger than that of the second supporting layer, it can be guaranteed that the first supporting layer has good mechanical performance, the reliability and optical performance of the first flat part are improved, and therefore the performance of the display panel is improved.
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Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) is an active light-emitting device with a sandwich structure consisting of multiple organic layers and electrodes on both sides. At present, display screens based on AMOLED (Active-matrix organic light-emitting diode) have been commercialized in the fields of smart phones, watches and laptops.

[0003] However, the performance of existing displays needs to be improved. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a display panel that is conducive to reducing the bending radius of the bending portion, thereby achieving a narrower frame.

[0005] Based on the above purpose, the present application provides a display panel, which includes:

[0006] The screen body comprises a first flat portion, a bent portion and a second flat portion connected in sequence, wherein the first flat portion and the second flat portion are stacked and spaced from each other, and the bent portion is connected between the first flat portion and the second flat portion;

[0007] The support layer comprises a first support layer and a second support layer, wherein the first support layer is disposed between the first flat portion and the second flat portion and is in contact with the first flat portion; the second support layer is at least partially disposed on a side of the bent portion close to the first support layer and is in contact with the bent portion;

[0008] Wherein, the stiffness of the second supporting layer is smaller than the stiffness of the first supporting layer.

[0009] In one embodiment, the first supporting layer includes a first glass substrate, and the second supporting layer includes a first flexible substrate;

[0010] Preferably, the thickness of the first flexible substrate is smaller than the thickness of the first glass substrate;

[0011] Preferably, the thickness of the first flexible substrate is 0.01-0.03 mm, and the thickness of the first glass substrate is 0.1-0.3 mm;

[0012] Preferably, the first supporting layer further comprises a second flexible substrate, and the second flexible substrate is located between the first glass substrate and the first flat portion;

[0013] Preferably, part of the first glass substrate is bonded to the first flat portion, and part of the first glass substrate is bonded to the second flexible substrate;

[0014] Preferably, the first flexible substrate and the second flexible substrate are in the same layer and are continuously arranged.

[0015] In one embodiment, the support layer further includes a third support layer, and the third support layer is disposed between the first flat portion and the second flat portion and is bonded to the second flat portion;

[0016] Preferably, the third supporting layer comprises a third flexible substrate;

[0017] Preferably, the first flexible substrate, the second flexible substrate and the third flexible substrate are in the same layer and are arranged continuously;

[0018] Preferably, the third supporting layer further comprises a second glass substrate, and the third flexible substrate is disposed between the second glass substrate and the second flat portion;

[0019] Preferably, the first glass substrate and the second glass substrate are prepared in the same layer;

[0020] Preferably, part of the second glass substrate is bonded to the second flat portion, and part of the second glass substrate is bonded to the third flexible substrate;

[0021] Preferably, the display panel further includes a first supporting body, and the first supporting body is arranged between the first supporting layer and the third supporting layer.

[0022] In one embodiment, the first supporting layer includes a third glass substrate, the second supporting layer includes a fourth glass substrate, and the fourth glass substrate is provided with an opening;

[0023] Preferably, the fourth glass substrate is provided with a plurality of the openings, and the plurality of the openings form a grid shape;

[0024] Preferably, the third glass substrate and the fourth glass substrate are prepared in the same layer;

[0025] Preferably, the display panel further comprises a fourth supporting layer, wherein the fourth supporting layer is disposed between the first flat portion and the second flat portion and is bonded to the second flat portion;

[0026] Preferably, the fourth supporting layer comprises a fifth glass substrate;

[0027] Preferably, the third glass substrate, the fourth glass substrate and the fifth glass substrate are prepared in the same layer;

[0028] Preferably, the display panel further includes a second support body, and the second support body is disposed between the third glass substrate and the fifth glass substrate.

[0029] Preferably, a filler is provided in the opening;

[0030] Preferably, the filler comprises a flexible material;

[0031] In one embodiment, the second supporting layer further includes a fourth flexible substrate, and the fourth flexible substrate is disposed between the bending portion and the fourth glass substrate;

[0032] Preferably, the material of the fourth flexible substrate is the same as that of the filler.

[0033] In one embodiment, the first supporting layer includes a sixth glass substrate, the second supporting layer includes a seventh glass substrate, and the thickness of the seventh glass substrate is less than the thickness of the sixth glass substrate;

[0034] Preferably, the seventh glass substrate and the sixth glass substrate are transitioned by an inclined surface;

[0035] Preferably, the thickness of the seventh glass substrate is less than or equal to 50 um;

[0036] Preferably, the seventh glass substrate is prepared in the same layer as the sixth glass substrate;

[0037] Preferably, the display panel further comprises a fifth supporting layer, wherein the fifth supporting layer is disposed between the first flat portion and the second flat portion and is bonded to the second flat portion;

[0038] Preferably, the fifth supporting layer comprises an eighth glass substrate;

[0039] Preferably, the sixth glass substrate, the seventh glass substrate and the eighth glass substrate are prepared in the same layer;

[0040] Preferably, the display panel further includes a third support body, and the third support body is disposed between the sixth glass substrate and the eighth glass substrate.

[0041] In one embodiment, the second supporting layer further includes a fifth flexible substrate, which is disposed on a side of the seventh glass substrate close to the first supporting layer and is bonded to the seventh glass substrate;

[0042] Preferably, the thickness of the second supporting layer is equal to the thickness of the first supporting layer.

[0043] In one embodiment, the first flat portion includes a display area and a non-display area at least partially surrounding the display area, and at least a portion of the non-display area is located between the display area and the bent portion;

[0044] Preferably, the second planar portion comprises a bonding area.

[0045] Based on the same inventive concept, the present application also discloses a display module, which includes any one of the display panels described above.

[0046] Based on the same inventive concept, the present application also discloses a display device, which includes the above-mentioned display module.

[0047] Compared with the prior art, the display panel provided in the present application supports the first flat portion through a first supporting layer, and supports the bending portion through a second supporting layer, wherein the stiffness of the second supporting layer is less than that of the first supporting layer, thereby improving the bendability of the second supporting layer, which is beneficial to reducing the bending radius of the bending portion, thereby achieving a narrower frame.

[0048] At the same time, the stiffness of the first supporting layer is greater than that of the second supporting layer, which is beneficial to ensure that the first supporting layer has good mechanical properties, improve the reliability and optical performance of the first flat portion, and thus improve the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 is a schematic diagram of a related display panel before being bent;

[0051] Figure 2 is a schematic diagram of a related display panel after being bent;

[0052] Figure 3 A schematic diagram of a display panel after being bent according to an embodiment of the present application;

[0053] Figure 4 A schematic diagram of a display panel after being bent provided by another embodiment of the present application;

[0054] Figure 5 A schematic diagram of a display panel before being bent provided by another embodiment of the present application;

[0055] Figure 6 A schematic diagram of a display panel after being bent provided by another embodiment of the present application;

[0056] Figure 7 A schematic diagram of a display panel before being bent provided by another embodiment of the present application;

[0057] Figure 8 A schematic diagram of a display panel after being bent provided by another embodiment of the present application;

[0058] Fig. 9 A schematic diagram of a display panel after being bent provided by another embodiment of the present application;

[0059] Fig.10 A schematic diagram of a fourth glass substrate provided in another embodiment of the present application;

[0060] Fig.11 A schematic diagram of a support layer provided in another embodiment of the present application;

[0061] Fig.12 A schematic diagram of a display panel after being bent provided by another embodiment of the present application;

[0062] Fig.13 A schematic diagram of a display panel after being bent provided by another embodiment of the present application;

[0063] Fig.14 A schematic diagram of a display panel before being bent provided by another embodiment of the present application;

[0064] Fig.15 A schematic diagram of a support layer provided in another embodiment of the present application;

[0065] Fig.16 A schematic diagram of a display panel before being bent provided by another embodiment of the present application;

[0066] Fig.17 This is a schematic diagram of a display panel after being bent provided by another embodiment of the present application.

[0067] Marking Description:

[0068] 100. Display panel;

[0069] 1. Screen body; 11. Display part; 12. Bending part; 13. Bonding part; 2. Support layer;

[0070] 21. first supporting layer; 211. first glass substrate; 212. second flexible substrate; 213. third glass substrate; 214. sixth glass substrate;

[0071] 22, second supporting layer; 221, first flexible substrate; 222, fourth glass substrate; 2221, opening; 2222, filler; 223, fourth flexible substrate; 224, fifth flexible substrate; 225, seventh glass substrate; 2251, inclined surface;

[0072] 23. third supporting layer; 231. third flexible substrate; 232. second glass substrate;

[0073] 14. first flat portion; 141. display area; 142. non-display area; 15. second flat portion; 151. bonding area;

[0074] 24, fourth supporting layer; 241, fifth glass substrate; 25, fifth supporting layer; 251, eighth glass substrate;

[0075] 3. a first support body;

[0076] 4. A second support body;

[0077] 5. The third support body. DETAILED DESCRIPTION

[0078] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0079] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0080] Please refer to Figure 1 and 2 As shown, a related display panel 100 includes a screen body 1, the screen body 1 includes a display part 11, a bending part 12 and a bonding part 13, a signal terminal is arranged in the display part 11, a bonding pad is arranged in the bonding part 13, and the signal terminal and the bonding pad are electrically connected through a signal line.

[0081] In order to reduce the frame (usually the lower frame) of the display panel 100, the bonding portion 13 needs to be bent to the back of the display panel 100. Figure 2 As shown, after the display panel 100 is bent, the bent portion 12 is bent into a semicircular arc with point o as the center and a radius r, wherein r is the bending radius. The smaller the bending radius r, the narrower the frame of the display panel 100.

[0082] Currently, the support layer 2 generally includes two types: glass substrate and flexible substrate. Among them, the glass substrate has better mechanical properties, but it is difficult to bend and has a large bending radius. The flexible substrate is easier to bend, but its mechanical properties are not as good as the glass substrate.

[0083] Based on this, the present application provides a display panel solution to solve the above problems.

[0084] Please refer to Figure 3 As shown, a display panel 100 provided in an embodiment of the present application includes a screen body 1 and a supporting layer 2. The screen body 1 includes a first flat portion 14, a bent portion 12 and a second flat portion 15 connected in sequence. The first flat portion 14 and the second flat portion 15 are stacked and spaced apart from each other. The bent portion 12 is connected between the first flat portion 14 and the second flat portion 15.

[0085] The support layer 2 includes a first support layer 21 and a second support layer 22. The first support layer 21 is arranged between the first flat portion 14 and the second flat portion 15, and is in contact with the first flat portion 14. The second support layer 22 is at least partially arranged on a side of the bending portion 12 close to the first support layer 21, and is in contact with the bending portion 12. The stiffness of the second support layer 22 is less than that of the first support layer 21.

[0086] The display panel 100 provided in the present application supports the first flat portion 14 through the first supporting layer 21, and supports the bending portion 12 through the second supporting layer 22, wherein the stiffness of the second supporting layer 22 is less than that of the first supporting layer 21, thereby improving the bendability of the second supporting layer 22, which is beneficial to reducing the bending radius of the bending portion 12, thereby achieving a narrower frame.

[0087] Meanwhile, the rigidity of the first supporting layer 21 is greater than that of the second supporting layer 22 , which helps to ensure that the first supporting layer 21 has good mechanical properties, improve the reliability and optical performance of the first flat portion 14 , and thus improve the performance of the display panel 100 .

[0088] Please refer to Figure 4As shown, in one embodiment, the first supporting layer 21 includes a first glass substrate 211, and the second supporting layer 22 includes a first flexible substrate 221. The first glass substrate 211 has a greater rigidity than the first flexible substrate 221, and the first glass substrate 211 has good mechanical properties, which improves the reliability and optical performance of the first flat portion 14. The first flexible substrate 221 has good flexibility, which is conducive to reducing the bending radius of the bending portion 12, thereby achieving a narrower frame. At the same time, the first flexible substrate 221 is conducive to preventing the etching liquid from corroding the screen body 1.

[0089] Preferably, the thickness of the first flexible substrate 221 is smaller than the thickness of the first glass substrate 211 , which is more conducive to bending of the first flexible substrate 221 , thereby reducing the bending radius.

[0090] Preferably, the thickness of the first flexible substrate 221 includes 0.01-0.03 mm, and the thickness of the first glass substrate 211 includes 0.1-0.3 mm, which can ensure that the first flexible substrate 221 is easier to bend, and at the same time ensure that the first glass substrate 211 has greater rigidity. Exemplarily, the thickness of the first flexible substrate 221 is 0.01 mm, 0.015 mm, 0.02 mm, 0.025 mm, 0.03 mm, etc., and the thickness of the first glass substrate 211 is 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, etc., and there is no specific limitation.

[0091] Please refer to Figure 4 As shown, in one embodiment, the first supporting layer 21 further includes a second flexible substrate 212, and the second flexible substrate 212 is located between the first glass substrate 211 and the first flat portion 14. The second flexible substrate 212 is conducive to ensuring the stability of the connection between the first glass substrate 211 and the first flexible substrate 221.

[0092] Preferably, a portion of the first glass substrate 211 is bonded to the first flat portion 14 , and a portion of the first glass substrate 211 is bonded to the second flexible substrate 212 .

[0093] Preferably, the first flexible substrate 221 and the second flexible substrate 212 are in the same layer and are continuously arranged.

[0094] During the preparation, the first flexible substrate 221 and the second flexible substrate 212 are first prepared on the first glass substrate 211, and then the screen body 1 is formed on the first flexible substrate 221 and the second flexible substrate 212, and then the first glass substrate 211 under the first flexible substrate 221 is removed. Figure 5 Then the screen body 1 is bent to form Figure 4 The display panel 100 in FIG.

[0095] Please continue to refer to Figure 4As shown, in one embodiment, the support layer 2 further includes a third support layer 23, which is disposed between the first flat portion 14 and the second flat portion 15 and is attached to the second flat portion 15. The third support layer 23 is used to support the second flat portion 15. Preferably, the third support layer 23 includes a third flexible substrate 231.

[0096] Preferably, the first flexible substrate 221, the second flexible substrate 212 and the third flexible substrate 231 are in the same layer and are continuously arranged. Preferably, the first flexible substrate 221, the second flexible substrate 212 and the third flexible substrate 231 are flexible polyimide.

[0097] Please refer to Figure 6 As shown, in one embodiment, the third supporting layer 23 further includes a second glass substrate 232, and the third flexible substrate 231 is disposed between the second glass substrate 232 and the second flat portion 15. Preferably, the first glass substrate 211 and the second glass substrate 232 are prepared in the same layer.

[0098] Preferably, a portion of the second glass substrate 232 is bonded to the second flat portion 15 , and a portion of the second glass substrate 232 is bonded to the third flexible substrate 231 .

[0099] During the preparation, the first flexible substrate 221 and the second flexible substrate 212 are first prepared on the glass substrate, and then the screen body 1 is formed on the first flexible substrate 221 and the second flexible substrate 212, and then the glass substrate under the bending portion 12 is removed, and the first glass substrate 211 and the second glass substrate 232 are retained. Please refer to Figure 7 Then the screen body 1 is bent to form Figure 6 The display panel 100 in FIG.

[0100] Please refer to Figure 8 As shown, in one embodiment, the display panel 100 further includes a first support body 3, which is disposed between the first support layer 21 and the third support layer 23. The first support body 3 is used to fix the relative position of the bending portion 12 and is conducive to improving the anti-extrusion performance of the screen body 1.

[0101] Please refer to Fig. 9 and 10 As shown, in one embodiment, the first supporting layer 21 includes a third glass substrate 213, the second supporting layer 22 includes a fourth glass substrate 222, and the fourth glass substrate 222 is provided with an opening 2221. The opening 2221 is conducive to reducing the rigidity of the fourth glass substrate 222, which is conducive to the bending of the fourth glass substrate 222.

[0102] Preferably, the fourth glass substrate 222 is provided with a plurality of openings 2221, and the plurality of openings 2221 form a grid, which is conducive to further reducing the rigidity of the fourth glass substrate 222 and improving the bending performance of the fourth glass substrate 222. Preferably, the third glass substrate 213 and the fourth glass substrate 222 are prepared in the same layer.

[0103] Preferably, the display panel 100 further includes a fourth supporting layer 24, which is disposed between the first flat portion 14 and the second flat portion 15 and adheres to the second flat portion 15. Preferably, the fourth supporting layer 24 includes a fifth glass substrate 241.

[0104] Preferably, the third glass substrate 213, the fourth glass substrate 222 and the fifth glass substrate 241 are prepared in the same layer. Optionally, the opening 2221 is formed on the fourth glass substrate 222 by etching.

[0105] Please continue to refer to Fig. 9 As shown, in one embodiment, the display panel 100 further includes a second support body 4, which is disposed between the third glass substrate 213 and the fifth glass substrate 241. The second support body 4 is used to fix the relative position of the bending portion 12 and is conducive to improving the anti-extrusion performance of the screen body 1.

[0106] Please refer to Fig.11 As shown, in one embodiment, a filler 2222 is disposed in the opening 2221. The filler 2222 is beneficial to increase the flatness of the surface of the display panel 100 and improve the bending strength of the bending portion 12. Optionally, the filler 2222 includes a flexible material, such as flexible polyimide, thermoplastic polyurethane elastomer, etc.

[0107] Please refer to Fig.12 As shown, in one embodiment, the second supporting layer 22 further includes a fourth flexible substrate 223, and the fourth flexible substrate 223 is disposed between the bending portion 12 and the fourth glass substrate 222. The fourth flexible substrate 223 is helpful in preventing the etching liquid from corroding the screen body 1. Preferably, the material of the filler 2222 is the same as that of the fourth flexible substrate 223.

[0108] Please refer to Fig.13 As shown, in one embodiment, the first supporting layer 21 includes a sixth glass substrate 214, and the second supporting layer 22 includes a seventh glass substrate 225, and the thickness of the seventh glass substrate 225 is less than the thickness of the sixth glass substrate 214. The thickness of the seventh glass substrate 225 is less than the thickness of the sixth glass substrate 214, which is beneficial to reducing the rigidity of the seventh glass substrate 225 and improving its bending performance.

[0109] Preferably, the seventh glass substrate 225 and the sixth glass substrate 214 are transitioned via an inclined surface 2251 , which is beneficial to improving the support strength of the support layer 2 and ensuring the overall strength of the display panel 100 .

[0110] Preferably, the thickness of the seventh glass substrate 225 is less than or equal to 50um; illustratively, the thickness of the seventh glass substrate 225 is 50um, 40um, 30um, 20um, 10um, etc., and is not specifically limited. The smaller the thickness of the seventh glass substrate 225, the stronger the bendability.

[0111] Preferably, the seventh glass substrate 225 and the sixth glass substrate 214 are prepared at the same layer.

[0112] Preferably, the display panel 100 further includes a fifth supporting layer 25 , which is disposed between the first flat portion 14 and the second flat portion 15 and adheres to the second flat portion 15 . Preferably, the fifth supporting layer 25 includes an eighth glass substrate 251 .

[0113] Preferably, the sixth glass substrate 214, the seventh glass substrate 225 and the eighth glass substrate 251 are prepared in the same layer, wherein after preparation, the area corresponding to the bending portion 12 is thinned to form the seventh glass substrate 225, referring to Fig.14 shown.

[0114] Please continue to refer to Fig.13 As shown, in one embodiment, the display panel 100 further includes a third support body 5, which is disposed between the sixth glass substrate 214 and the eighth glass substrate 251. The third support body 5 is used to fix the relative position of the bending portion 12 and is conducive to improving the anti-extrusion performance of the screen body 1.

[0115] Please refer to Fig.15 and 16 As shown, in one embodiment, the second supporting layer 22 further includes a fifth flexible substrate 224, which is disposed on a side of the seventh glass substrate 225 close to the first supporting layer 21 and is bonded to the seventh glass substrate 225. The fifth flexible substrate 224 is beneficial to increasing the flatness of the surface of the display panel 100 and improving the bending strength of the bending portion 12. Optionally, the fifth flexible substrate 224 is a flexible polyimide, a thermoplastic polyurethane elastomer, etc. Preferably, the thickness of the second supporting layer 22 is equal to the thickness of the first supporting layer 21.

[0116] During preparation, the glass substrate in the area corresponding to the bending portion 12 is first thinned to form a seventh glass substrate 225, and then a fifth flexible substrate 224 is formed on the side of the seventh glass substrate 225 away from the bending portion 12, and the thinned area is filled so that the thickness of the second support layer 22 is equal to the thickness of the first support layer 21, and then bending is performed.

[0117] Please refer to Fig.17 As shown, in one embodiment, the first flat portion 14 includes a display area 141 and a non-display area 142 at least partially surrounding the display area 141, and at least part of the non-display area 142 is located between the display area 141 and the bending portion 12. The display area 141 is used for display, and the non-display area 142 is not used for display and is used for wiring, etc. Preferably, the second flat portion 15 includes a bonding area 151, and the bonding area 151 is bent to the back of the display panel 100 through the bending portion 12.

[0118] Based on the same inventive concept, the present application also discloses a display module, which includes the display panel 100 in the above embodiment.

[0119] The display module provided in this embodiment has a display panel 100, in which the first flat portion 14 is supported by a first supporting layer 21, and the bending portion 12 is supported by a second supporting layer 22, wherein the stiffness of the second supporting layer 22 is less than that of the first supporting layer 21, thereby improving the bendability of the second supporting layer 22, which is beneficial to reducing the bending radius of the bending portion 12, thereby achieving a narrower frame.

[0120] At the same time, the rigidity of the first supporting layer 21 is greater than that of the second supporting layer 22 , which is beneficial to ensure that the first supporting layer 21 has good mechanical properties, improve the reliability and optical performance of the first flat portion 14 , and thus improve the performance of the display module.

[0121] Based on the same inventive concept, another embodiment of the present application further discloses a display device, which includes the display panel in the above embodiment. Further, the display device includes a mobile phone, VR equipment, computer, television, car display equipment, etc.

[0122] A display device provided in this embodiment has a display panel 100, in which a first flat portion 14 is supported by a first supporting layer 21, and a bending portion 12 is supported by a second supporting layer 22, wherein the stiffness of the second supporting layer 22 is less than that of the first supporting layer 21, thereby improving the bendability of the second supporting layer 22, which is beneficial to reducing the bending radius of the bending portion 12, thereby achieving a narrower frame.

[0123] At the same time, the rigidity of the first supporting layer 21 is greater than that of the second supporting layer 22 , which is beneficial to ensure that the first supporting layer 21 has good mechanical properties, improve the reliability and optical performance of the first flat portion 14 , and thus improve the performance of the display device.

[0124] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0125] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0126] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: include: The screen body comprises a first flat portion, a bent portion and a second flat portion connected in sequence, wherein the first flat portion and the second flat portion are stacked and spaced from each other, and the bent portion is connected between the first flat portion and the second flat portion; The support layer comprises a first support layer and a second support layer, wherein the first support layer is disposed between the first flat portion and the second flat portion and is in contact with the first flat portion; the second support layer is at least partially disposed on a side of the bent portion close to the first support layer and is in contact with the bent portion; Wherein, the stiffness of the second supporting layer is smaller than the stiffness of the first supporting layer.

2. The display panel according to claim 1, characterized in that: The first supporting layer comprises a first glass substrate, and the second supporting layer comprises a first flexible substrate; Preferably, the thickness of the first flexible substrate is smaller than the thickness of the first glass substrate; Preferably, the thickness of the first flexible substrate is 0.01-0.03 mm, and the thickness of the first glass substrate is 0.1-0.3 mm; Preferably, the first supporting layer further comprises a second flexible substrate, and the second flexible substrate is located between the first glass substrate and the first flat portion; Preferably, part of the first glass substrate is bonded to the first flat portion, and part of the first glass substrate is bonded to the second flexible substrate; Preferably, the first flexible substrate and the second flexible substrate are in the same layer and are continuously arranged.

3. The display panel according to claim 2, characterized in that: The support layer further includes a third support layer, and the third support layer is disposed between the first flat portion and the second flat portion and is bonded to the second flat portion; Preferably, the third supporting layer comprises a third flexible substrate; Preferably, the first flexible substrate, the second flexible substrate and the third flexible substrate are in the same layer and are arranged continuously; Preferably, the third supporting layer further comprises a second glass substrate, and the third flexible substrate is disposed between the second glass substrate and the second flat portion; Preferably, the first glass substrate and the second glass substrate are prepared in the same layer; Preferably, part of the second glass substrate is bonded to the second flat portion, and part of the second glass substrate is bonded to the third flexible substrate; Preferably, the display panel further includes a first supporting body, and the first supporting body is arranged between the first supporting layer and the third supporting layer.

4. The display panel according to claim 1, characterized in that: The first supporting layer includes a third glass substrate, the second supporting layer includes a fourth glass substrate, and the fourth glass substrate is provided with an opening; Preferably, the fourth glass substrate is provided with a plurality of the openings, and the plurality of the openings form a grid shape; Preferably, the third glass substrate and the fourth glass substrate are prepared in the same layer; Preferably, the display panel further comprises a fourth supporting layer, wherein the fourth supporting layer is disposed between the first flat portion and the second flat portion and is bonded to the second flat portion; Preferably, the fourth supporting layer comprises a fifth glass substrate; Preferably, the third glass substrate, the fourth glass substrate and the fifth glass substrate are prepared in the same layer; Preferably, the display panel further includes a second support body, and the second support body is disposed between the third glass substrate and the fifth glass substrate; Preferably, a filler is provided in the opening; Preferably, the filler comprises a flexible material.

5. The display panel according to claim 4, characterized in that: The second supporting layer further includes a fourth flexible substrate, and the fourth flexible substrate is disposed between the bending portion and the fourth glass substrate; Preferably, the material of the fourth flexible substrate is the same as that of the filler.

6. The display panel according to claim 1, characterized in that: The first supporting layer includes a sixth glass substrate, the second supporting layer includes a seventh glass substrate, and the thickness of the seventh glass substrate is less than the thickness of the sixth glass substrate; Preferably, the seventh glass substrate and the sixth glass substrate are transitioned by an inclined surface; Preferably, the thickness of the seventh glass substrate is less than or equal to 50 um; Preferably, the seventh glass substrate is prepared in the same layer as the sixth glass substrate; Preferably, the display panel further comprises a fifth supporting layer, wherein the fifth supporting layer is disposed between the first flat portion and the second flat portion and is bonded to the second flat portion; Preferably, the fifth supporting layer comprises an eighth glass substrate; Preferably, the sixth glass substrate, the seventh glass substrate and the eighth glass substrate are prepared in the same layer; Preferably, the display panel further includes a third support body, and the third support body is disposed between the sixth glass substrate and the eighth glass substrate.

7. The display panel according to claim 6, characterized in that: The second supporting layer further includes a fifth flexible substrate, which is disposed on a side of the seventh glass substrate close to the first supporting layer and is bonded to the seventh glass substrate; Preferably, the thickness of the second supporting layer is equal to the thickness of the first supporting layer.

8. The display panel according to any one of claims 1 to 7, characterized in that: The first flat portion includes a display area and a non-display area at least partially surrounding the display area, and at least a portion of the non-display area is located between the display area and the bent portion; Preferably, the second planar portion comprises a bonding area.

9. A display module, characterized in that: Comprising a display panel as described in any one of claims 1-8.

10. A display device, characterized in that: Comprising the display module as claimed in claim 9.