Display module and display device

Abstract

The utility model relates to the technical field of display, and discloses a display module and a display device. The display module is provided with a display area and a non-display area, and comprises a flexible display panel, a cover plate, a shading layer and a bonding layer group, the flexible display panel comprises a display part and a non-display part, the non-display part comprises a bending part, the bending part is bent to be of a bent structure, and the bending part is provided with a bending starting line; the cover plate is arranged on the display side of the flexible display panel; the shading layer is arranged in the non-display area; the bonding layer set is bonded between the flexible display panel and the cover plate, at least one adhesive layer of the bonding layer set is located on the side, close to the flexible display panel, of the shading layer, the bonding layer set comprises a protection part, the orthographic projection of the protection part on the cover plate is located in the orthographic projection of the shading layer on the cover plate, and the protection part covers the bending line. The display module is not prone to open circuit, and narrow frame arrangement is facilitated.

Description

Technical Field

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

[0002] OLED (Organic Electroluminescence Display) display panels can meet the new demands of consumers for display technologies due to their many advantages such as high brightness, low power consumption, fast response, high definition, good flexibility, and high luminous efficiency.

[0003] However, an OLED display panel can achieve a narrow bezel appearance by bending a partial non-display area; but local small-radius bending will lead to the risk of some circuits breaking, and thus cause poor display.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the present disclosure is to overcome the deficiencies of the above-mentioned prior art and provide a display module and a display device.

[0006] According to one aspect of the present disclosure, a display module is provided, which has a display area and a non-display area, and the display module includes:

[0007] A flexible display panel, including a display portion and a non-display portion, the non-display portion includes a bending portion, the bending portion is bent into a curved structure, and the bending portion has a starting bending line;

[0008] A cover plate, disposed on the display side of the flexible display panel;

[0009] A light-shielding layer, disposed in the non-display area;

[0010] An adhesive layer group, bonded between the flexible display panel and the cover plate, and at least one adhesive layer of the adhesive layer group is located on the side of the light-shielding layer close to the flexible display panel. The adhesive layer group includes a protection portion, and the orthographic projection of the protection portion on the cover plate is located within the orthographic projection of the light-shielding layer on the cover plate, and the protection portion covers the starting bending line.

[0011] In an exemplary embodiment of the present disclosure, the adhesive layer group further includes a curing portion, the curing portion is connected to the protection portion, and the storage modulus of the curing portion is greater than the storage modulus of the protection portion.

[0012] In an exemplary embodiment of the present disclosure, a difference between the storage modulus of the solidified portion and the storage modulus of the protective portion is greater than or equal to 30 kPa.

[0013] In an exemplary embodiment of the present disclosure, the display module further includes:

[0014] A first supporting layer, provided on a non-display side of the flexible display panel, wherein the first supporting layer extends from the display area to the non-display area;

[0015] The orthographic projection of the first supporting layer on the cover plate overlaps with the orthographic projection of the light shielding layer on the cover plate, and the bending line is located on a side of the end surface of the first supporting layer close to the bending portion away from the display area, or the bending line and the end surface of the first supporting layer close to the bending portion are located in the same plane;

[0016] Alternatively, the orthographic projection of the first supporting layer on the cover plate has no overlap with the orthographic projection of the light shielding layer on the cover plate, and the protective portion covers the bending line.

[0017] In an exemplary embodiment of the present disclosure, the light shielding layer is provided on a side of the cover plate close to the flexible display panel.

[0018] In an exemplary embodiment of the present disclosure, the adhesive layer group is configured as a single-layer structure, or the adhesive layer group includes:

[0019] basal layer;

[0020] A first adhesive layer, bonded between the base layer and the cover plate;

[0021] A second adhesive layer, bonded between the base layer and the flexible display panel;

[0022] The protection part includes a first protection part and a second protection part, the first protection part is included in the first adhesive layer, the second protection part is included in the second adhesive layer, and the orthographic projection of the second protection part on the cover plate is within the orthographic projection of the first protection part on the cover plate.

[0023] In an exemplary embodiment of the present disclosure, the adhesive layer set includes:

[0024] A base layer, comprising a light-transmitting portion and a light-shielding portion, wherein the light-shielding portion is located in the non-display area and is the light-shielding layer;

[0025] A first adhesive layer, bonded between the base layer and the cover plate;

[0026] A second adhesive layer, bonded between the base layer and the flexible display panel;

[0027] Wherein, the protection part is included in the second adhesive layer.

[0028] In an exemplary embodiment of the present disclosure, the adhesive layer group includes:

[0029] A base layer, including a light-transmitting part and a light-shielding part, the light-shielding part is located in the non-display area;

[0030] A first adhesive layer, bonded between the base layer and the cover plate;

[0031] A second adhesive layer, bonded between the base layer and the flexible display panel;

[0032] Wherein, the light-shielding layer is provided with two layers, the two light-shielding layers are a first light-shielding layer and a second light-shielding layer, the first light-shielding layer is disposed on a surface of the cover plate close to the flexible display panel, and the light-shielding part is the second light-shielding layer; the protection part includes a first protection part and a second protection part, the first protection part is included in the first adhesive layer, and the second protection part is included in the second adhesive layer.

[0033] In an exemplary embodiment of the present disclosure, a positive projection of the first light-shielding layer on the cover plate overlaps a positive projection of the second light-shielding layer on the cover plate, and the second light-shielding layer is closer to the display area relative to the first light-shielding layer, a positive projection of the first protection part on the cover plate is located within a positive projection of the second protection part on the cover plate, and a positive projection of the bending line on the cover plate is located within a positive projection of the second light-shielding layer on the cover plate.

[0034] In an exemplary embodiment of the present disclosure, the display module further includes:

[0035] An edge filling part, disposed in the non-display area and located on a side of the bending part and the adhesive layer group away from the display area.

[0036] In an exemplary embodiment of the present disclosure, the display module further includes:

[0037] A bending filling part, filling an accommodation space of the bending part close to the display area.

[0038] In an exemplary embodiment of the present disclosure, the flexible display panel includes:

[0039] The driving substrate includes a thinning portion, the thinning portion includes the bending portion, the thinning portion includes a first organic layer, a plurality of first connection traces, and a second organic layer that are sequentially stacked. The first connection traces are completely wrapped by the first organic layer and the second organic layer. The first connection traces extend at least from one side of the bending portion close to the display area to the bending portion, and extend from the bending portion to the side of the bending portion away from the display area.

[0040] In an exemplary embodiment of the present disclosure, the bending portion further includes:

[0041] A protective layer provided on the side of the second organic layer facing away from the first connection traces.

[0042] In an exemplary embodiment of the present disclosure, the thinning portion further includes:

[0043] A third organic layer;

[0044] Second connection traces, the second connection traces are connected in parallel with the first connection traces; the second connection traces are completely wrapped by the first organic layer and the third organic layer, or the second connection traces are completely wrapped by the second organic layer and the third organic layer.

[0045] In an exemplary embodiment of the present disclosure, the thinning portion is provided with a groove, the groove has a groove bottom wall and a groove side wall; the first organic layer includes a first sub-organic layer and a second sub-organic layer, the first sub-organic layer covers the groove bottom wall, and the second sub-organic layer covers the groove side wall.

[0046] In an exemplary embodiment of the present disclosure, the bending portion further includes:

[0047] A protective layer provided on the side of the second organic layer or the third organic layer facing away from the first connection traces.

[0048] According to another aspect of the present disclosure, a display device is provided, including: a display module, which is the display module described in any one of the above.

[0049] In an exemplary embodiment of the present disclosure, the edge portion of the display module is bent.

[0050] In the display module of the present disclosure, at least one adhesive layer of the adhesive layer group is located on the side of the light-shielding layer close to the flexible display panel, and the orthographic projection of the protection part of the adhesive layer group on the cover plate is located within the orthographic projection of the light-shielding layer on the cover plate, and the protection part covers the bending line; on the one hand, before bending at the bending part, the protection part is not cured because it is blocked by the light-shielding layer, so that when bending at the bending part, the pulling force generated by the protection part on the bending part is small, avoiding the defect of tearing caused by the bending part being subjected to a large pulling force, and also avoiding the defect of open circuit caused by the wiring in the bending part being subjected to a large pulling force; on the other hand, the position of the bending line can be more accurately controlled through the light-shielding layer, which is beneficial to the consistency of the preparation process of the display module, and can also control the bending line of the bending part to be closer to the display part, thereby reducing the width of the flexible display panel in the non-display area, and thus reducing the width of the non-display area, which is beneficial to the narrow border setting.

[0051] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The drawings here are incorporated into the specification and constitute a part of this specification, showing the embodiments in line with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0053] Figure 1 It is a schematic structural diagram of the first exemplary embodiment of the display module of the present disclosure.

[0054] Figure 2 is Figure 1 a three-dimensional structural diagram of the flexible display panel in

[0055] Figure 3 is Figure 1 a sectional structural diagram of the display part of the flexible display panel in

[0056] Figure 4 is Figure 1 a sectional structural diagram of an exemplary embodiment when the non-display part of the flexible display panel is not bent in

[0057] Figure 5 is a structural diagram of a protective layer provided on the basis of Figure 4

[0058] Figure 6 is Figure 1 a sectional structural diagram of another exemplary embodiment when the non-display part of the flexible display panel is not bent in ​

[0059] Figure 7 is Figure 1 A schematic cross-sectional structure diagram of another exemplary embodiment when the non-display portion of the flexible display panel in

[0060] Figure 8 is a structure diagram provided with a protective layer on the basis of Figure 6

[0061] Figure 9 is a structure diagram provided with a protective layer on the basis of Figure 7

[0062] Figure 10 A schematic structure diagram of the second exemplary embodiment of the display module of the present disclosure.

[0063] Figure 11 A schematic structure diagram of the third exemplary embodiment of the display module of the present disclosure.

[0064] Figure 12 A schematic structure diagram of the fourth exemplary embodiment of the display module of the present disclosure.

[0065] Figure 13 A schematic structure diagram of the fifth exemplary embodiment of the display module of the present disclosure.

[0066] Figure 14 A schematic structure diagram of the sixth exemplary embodiment of the display module of the present disclosure.

[0067] Figure 15 A schematic structure diagram of the seventh exemplary embodiment of the display module of the present disclosure.

[0068] Figure 16 A schematic structure diagram of the eighth exemplary embodiment of the display module of the present disclosure.

[0069] Figure 17 A schematic structure diagram of the ninth exemplary embodiment of the display module of the present disclosure.

[0070] Figure 18 A schematic structure diagram of the tenth exemplary embodiment of the display module of the present disclosure.

[0071] Figure 19 is Figure 1 A schematic structure diagram when the flexible display panel in the display module in

[0072] Figure 20 A schematic flow chart of an exemplary embodiment of the manufacturing method of the display module of the present disclosure.

[0073] Figure 21 A schematic structure diagram of the display module of the present disclosure for a curved display device. ​​

[0074] Description of reference numerals:

[0075] 10. Flexible display panel; 101. Display portion; 102. Non-display portion; 1021. Thinning portion; 1021a. Groove; 10211. Bending portion; 10211L. Bending line; 1022. Binding portion;

[0076] 1. Substrate substrate;

[0077] 2. driving substrate; 21. first insulating layer; 22. blocking layer; 231. channel portion; 232. source connection portion; 233. drain connection portion; 24. second insulating layer; 25. buffer layer; 26. gate insulating layer; 27. gate layer; 271. gate; 272. gate line; 28. interlayer dielectric layer; 29. first connecting conductor layer; 291. first source; 292. first drain; 293. transfer portion; 210. first planarizing layer; 211. second connecting conductor layer; 2111. second source; 2112. second drain; 2113. first connecting wiring; 212. second planarizing layer; 213. first organic layer; 2131. first sub-organic layer; 2132. second sub-organic layer; 214. second organic layer; 215. protective layer; 216. second connecting wiring; 217. third organic layer;

[0078] 3. Light-emitting substrate; 31. First electrode; 32. Pixel definition layer; 33. Light-emitting layer group; 34. Second electrode;

[0079] 4. Encapsulation layer group;

[0080] 5. Touch layer group; 51. First touch insulating layer; 52. First touch functional layer; 53. Second touch insulating layer; 54. Second touch functional layer; 55. Touch protection layer;

[0081] 20, cover plate; 30, light shielding layer; 30a, first light shielding layer; 30b, second light shielding layer;

[0082] 40, adhesive layer group; 40a, protective part; 40b, curing part; 40c, adhesive layer; 401, first adhesive layer; 401a, first protective part; 401b, first curing part; 402, second adhesive layer; 402a, second protective part; 402b, second curing part; 403, base layer; 4031, light-transmitting part; 4032, light-shielding part;

[0083] 50, first supporting layer; 60, edge filling part; 70, bending filling part; 80, second supporting layer; 90, filling spacer layer;

[0084] AA, display area; NAA, non-display area; IC, display driver chip. DETAILED DESCRIPTION

[0085] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0086] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the orientation of the examples described in the drawings. It is understood that if the device of the icon is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" another structure, it may mean that a structure is integrally formed on another structure, or that a structure is "directly" disposed on another structure, or that a structure is "indirectly" disposed on another structure through another structure.

[0087] The terms "a", "an", "the", "said" and "at least one" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", "third", etc. are used only as labels and are not a limitation on the quantity of their objects.

[0088] In this application, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be directly connected or indirectly connected through an intermediate medium. "And / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0089] The example embodiments of the present disclosure provide a display module. Refer to Figures 1 - 19As shown, the display module has a display area AA and a non-display area NAA. The display module may include a flexible display panel 10, a cover plate 20, a light-shielding layer 30, and an adhesive layer group 40. The flexible display panel 10 may include a display portion 101 and a non-display portion 102. The non-display portion 102 may include a bending portion 10211, and the bending portion 10211 is bent into a curved structure. The bending portion 10211 has a bending start line 10211L. The cover plate 20 is disposed on the display side of the flexible display panel 10. The light-shielding layer 30 is disposed in the non-display area NAA. The adhesive layer group 40 is bonded between the flexible display panel 10 and the cover plate 20, and at least one adhesive layer 40c of the adhesive layer group 40 is located on the side of the light-shielding layer 30 close to the flexible display panel 10. The adhesive layer group 40 may include a protection portion 40a. The orthographic projection of the protection portion 40a on the cover plate 20 is located within the orthographic projection of the light-shielding layer 30 on the cover plate 20, and the protection portion 40a covers the bending start line 10211L.

[0090] For the display module of the present disclosure, on the one hand, before the bending portion 10211 is bent, the protection portion 40a is not cured because it is blocked by the light-shielding layer 30. When the bending portion 10211 is bent, the pulling force generated by the protection portion 40a on the bending portion 10211 is small, avoiding the defect of tearing of the bending portion 10211 due to a large pulling force, and also avoiding the defect of open circuit of the circuit traces in the bending portion 10211 due to a large pulling force. On the other hand, the position of the bending start line 10211L can be more accurately controlled by the light-shielding layer 30, which is beneficial to the consistency of the manufacturing process of the display module. It can also control the bending start line 10211L of the bending portion 10211 to be closer to the display portion 101, thereby reducing the width of the flexible display panel 10 in the non-display area NAA, and thus reducing the width of the non-display area NAA, which is beneficial to the narrow border setting.

[0091] Referring to Figure 1 As shown, the display module has a display area AA and a non-display area NAA. The display area AA is used to display images, and the non-display area NAA cannot display images. The non-display area NAA is connected to the display area AA and is disposed on at least one side of the display area AA. For example, the non-display area NAA may be disposed on one side of the display area AA, or may be disposed on two sides, three sides, or more sides of the display area AA. To achieve a narrow border setting, it is necessary to reduce the width of the non-display area NAA.

[0092] Referring to Figure 1 and Figure 2As shown, the flexible display panel 10 may include a display portion 101 and a non-display portion 102. The non-display portion 102 is connected to the display portion 101 and is provided on at least one side of the display portion 101. For example, the non-display portion 102 may be provided on one side of the display portion 101, or may be provided on two sides, three sides or more sides of the display portion 101.

[0093] The non-display portion 102 may include a bending portion 10211 and a bonding portion 1022. The bonding portion 1022 is connected to a side of the bending portion 10211 away from the display portion 101. The bending portion 10211 is bent into a curved structure. The bending portion 10211 has a starting bending line 10211L. The starting bending line 10211L is a line where the bending portion 10211 starts to bend near the display portion 101. The starting bending line 10211L is generally a straight line. The starting bending line 10211L may be a solid line formed on the flexible display panel 10, or may be a virtual line derived according to the starting bending position of the bending portion 10211.

[0094] A plurality of bonding pins are provided in the bonding portion 1022. The plurality of bonding pins can be bonded to a circuit board. The bonding pins can be bonded to a display driving chip IC. Various components and connecting wires are provided on the circuit board. The flexible display panel 10 is detected and controlled through various components.

[0095] Through the bending portion 10211, the bonding portion 1022 and the circuit board can be located on the non-display side of the flexible display panel 10, thereby reducing the width of the non-display area NAA of the flexible display panel 10, and thus the width of the non-display area NAA can be reduced, which is beneficial to the narrow border setting.

[0096] The flexible display panel 10 may be an OLED (Organic Electroluminescence Display) flexible display panel 10, a QLED (Quantum Dot Light Emitting Diodes) flexible display panel 10, etc.; the flexible display panel 10 has a light-emitting side and a non-light-emitting side, and the light-emitting side and the non-light-emitting side are arranged opposite to each other. A picture can be displayed on the light-emitting side, and the side for displaying the picture is the display surface.

[0097] The following takes the OLED flexible display panel 10 as an example for illustration.

[0098] In the present exemplary embodiment, refer to Figure 3As shown, the flexible display panel 10 may include a substrate substrate 1. The material of the substrate substrate 1 may include inorganic materials. For example, the inorganic material may be glass, quartz, metal, etc. The material of the substrate substrate 1 may also include organic materials. For example, the organic material may be resin materials such as polyimide, polycarbonate, polyacrylate, polyetherimide, polyethersulfone, polyethylene terephthalate, and polyethylene naphthalate. The substrate substrate 1 may be formed by multiple material layers. For example, the substrate substrate 1 may include multiple base material layers, and the material of the base material layer may be any of the above materials. Of course, the substrate substrate 1 may also be set as a single layer, which may be any of the above materials. The substrate substrate 1 may be flexible, that is, the substrate substrate 1 can also be bent.

[0099] Referring to Figure 3 As shown, the flexible display panel 10 may further include a driving substrate 2 and a light-emitting substrate 3. The driving substrate 2 is disposed on one side of the substrate substrate 1, and the light-emitting substrate 3 is disposed on the side of the driving substrate 2 away from the substrate substrate 1. The driving substrate 2 may include a plurality of driving circuits arranged in an array, and the light-emitting substrate 3 may include a plurality of light-emitting devices arranged in an array. The driving circuit can drive the light-emitting device to emit light.

[0100] Specifically, referring to Figure 3 As shown, a first insulating layer 21 may be disposed on one side of the substrate substrate 1. The material of the first insulating layer 21 is an organic material. For example, the material of the first insulating layer 21 may be polyimide, polycarbonate, polyacrylate, polyetherimide, etc.

[0101] A barrier layer 22 may also be disposed on the side of the first insulating layer away from the substrate substrate 1. The material of the barrier layer 22 is an inorganic material. For example, the material of the barrier layer 22 may be silicon, silicon oxide, silicon nitride, silicon oxynitride, etc.; the barrier layer 22 functions to block moisture and impurity ions in the substrate substrate 1 (especially organic materials), and functions to increase hydrogen ions for the subsequent formed active layer. Depending on the type of the substrate substrate or process conditions, the barrier layer 22 may be omitted.

[0102] An active layer is disposed on the side of the barrier layer 22 away from the substrate substrate 1. The active layer may include a channel portion 231 and conductor portions disposed at both ends of the channel portion 231. One of the two conductor portions is a source connection portion 232, and the other is a drain connection portion 233. A second insulating layer 24 is disposed on the side of the active layer away from the substrate substrate 1. The material of the second insulating layer 24 is an organic material. For example, the material of the second insulating layer 24 may be polyimide, polycarbonate, polyacrylate, polyetherimide, etc.

[0103] On the side of the second insulating layer 24 facing away from the substrate 1, a buffer layer 25 is provided. The material of the buffer layer 25 is an inorganic material. For example, the material of the buffer layer 25 can be silicon, silicon oxide, silicon nitride, silicon oxynitride, etc. On the side of the buffer layer 25 facing away from the substrate 1, a gate insulating layer 26 is provided. The material of the gate insulating layer 26 is an inorganic material. For example, the material of the gate insulating layer 26 can be silicon, silicon oxide, silicon nitride, silicon oxynitride, etc. On the side of the gate insulating layer 26 facing away from the substrate 1, a gate electrode layer 27 is provided. The gate electrode layer 27 may include a gate electrode 271 and a gate line 272.

[0104] On the side of the gate electrode layer 27 facing away from the substrate 1, an interlayer dielectric layer 28 is provided. The material of the interlayer dielectric layer 28 is an inorganic material. For example, the material of the interlayer dielectric layer 28 can be silicon, silicon oxide, silicon nitride, silicon oxynitride, etc. The interlayer dielectric layer 28 can be provided as one layer or two layers. Connection vias are provided on the interlayer dielectric layer 28, the gate insulating layer 26, the buffer layer 25, and the second insulating layer 24, and the connection vias communicate with the source connection portion 232 and the drain connection portion 233; on the side of the interlayer dielectric layer 28 facing away from the substrate 1, a first connection conductor layer 29 is provided. The first connection conductor layer 29 may include a first source electrode 291, a first drain electrode 292, and a data line (not shown in the figure). The data line can be connected to the first source electrode 291, or a part of the data line can be used as the first source electrode 291; the first source electrode 291 is connected to the source connection portion 232 through a connection via, and the first drain electrode 292 is connected to the drain connection portion 233 through a connection via.

[0105] On the side of the first connection conductor layer 29 facing away from the substrate 1, a first planarization layer 210 is provided. The material of the first planarization layer 210 can be an organic material. For example, the material of the first planarization layer 210 can be polyimide, polycarbonate, polyacrylate, etc. Connection vias are also provided on the first planarization layer 210; on the side of the first planarization layer 210 facing away from the substrate 1, a second connection conductor layer 211 is provided. The second connection conductor layer 211 may include a second source electrode 2111 and / or a second drain electrode 2112. The second source electrode 2111 and the second drain electrode 2112 are correspondingly connected to the first source electrode 291 and the first drain electrode 292 through the connection vias on the first planarization layer 210. Of course, a third connection conductor layer, a fourth connection conductor layer, etc. can also be provided as needed.

[0106] Please continue to refer to Figure 3As shown, a second planarization layer 212 is provided on the side of the second connection conductor 211 layer facing away from the substrate 1. The material of the second planarization layer 212 can be an organic material. For example, the material of the second planarization layer 212 can be polyimide, polycarbonate, polyacrylate, etc. A connection via is provided on the second planarization layer 212, and the connection via is connected to the second drain 2112. The channel portion 231, the gate 271, the first source 291, and the first drain 292 form a thin-film transistor.

[0107] It should be noted that the thin-film transistor described in this specification is a top-gate thin-film transistor. In other exemplary embodiments of the present disclosure, the thin-film transistor can also be a bottom-gate type or a double-gate type, and the specific structure thereof will not be elaborated herein. Moreover, in the case of using thin-film transistors with opposite polarities or in the case of a change in the current direction during circuit operation, etc., the functions of the "source" and "drain" sometimes swap with each other. Therefore, in this specification, the "source" and "drain" can swap with each other.

[0108] Please continue to refer to Figure 3 As shown, a light-emitting substrate 3 is provided on the side of the second planarization layer 212 facing away from the substrate 1. The light-emitting substrate 3 can include a first electrode 31, a pixel definition layer 32, a light-emitting layer group 33, and a second electrode 34.

[0109] Specifically, a first electrode 31 is provided on the side of the second planarization layer 212 facing away from the substrate 1. The first electrode 31 is connected to the second drain 2112 of the driving backplane through a connection via, and a driving signal is provided to the first electrode 31 through the second drain 2112. The first electrode 31 can be an anode (pixel electrode).

[0110] A pixel definition layer 32 is provided on the side of the first electrode 31 facing away from the substrate 1. Refer to Figure 3 As shown, an opening is provided on the pixel definition layer 32, and the opening communicates with the first electrode 31, so that at least a part of the first electrode 31 is not covered by the pixel definition layer 32. The pixel definition layer 32 can adopt a black material capable of absorbing photons. For example, the material of the pixel definition layer 32 can be black ink; stray light can be absorbed through the pixel definition layer 32 to improve the display effect.

[0111] A light-emitting layer group 33 is provided on the side of the first electrode 31 facing away from the substrate 1, and at least a part of the light-emitting layer group 33 is located within the opening. A second electrode 34 is provided on the side of the light-emitting layer group 33 facing away from the substrate 1. The second electrode 34 can be a cathode (common electrode).

[0112] The light-emitting layer group 33 may include a hole injection layer, a hole transport layer, an organic light-emitting layer, an electron transport layer, and an electron injection layer that are sequentially stacked. The hole injection layer is in contact with the first electrode 31, and the electron injection layer is in contact with the second electrode 34. Of course, in other exemplary embodiments of the present disclosure, the light-emitting layer group 33 may only include a hole transport layer, a light-emitting layer, and an electron transport layer. The light-emitting layer group 33 may also have other structures, and its specific structure may be set as needed.

[0113] Holes are injected into the organic light-emitting layer from the side of the first electrode 31, and electrons are injected into the organic light-emitting layer from the side of the second electrode 34. Finally, holes and electrons recombine in the organic light-emitting layer to generate excitons. When the generated excitons relax from the excited state to the ground state, the OLED emits visible light.

[0114] The flexible display panel 10 may further include a packaging layer group 4, and the packaging layer group 4 is disposed on the side of the light-emitting substrate 3 away from the substrate 1. For example, the packaging layer group 4 may include a first inorganic layer, an organic layer, and a second inorganic layer; the first inorganic layer is disposed on the side of the second electrode 34 away from the substrate 1; the material of the first inorganic layer may be silicon nitride (SiNx) or silicon oxynitride (SiNO), etc. The organic layer is disposed on the side of the first inorganic layer away from the substrate 1, and the material of the organic layer may be an organic material such as acrylic or epoxy. The second inorganic layer is disposed on the side of the organic layer away from the substrate 1, and the material of the second inorganic layer may be silicon nitride (SiNx) or silicon oxynitride (SiNO), etc. The light-emitting layer group 33 can be encapsulated by the packaging layer group 4 to isolate the corrosion of water / oxygen in the air.

[0115] In some exemplary embodiments of the present disclosure, as shown in Figure 3 The flexible display panel 10 may further include a touch layer group 5, and the touch layer group 5 is disposed on the side of the packaging layer group 4 away from the substrate 1, and the touch layer group 5 enables the flexible display panel 10 to implement a touch function.

[0116] The touch layer group 5 may include a first touch insulating layer 51, a first touch functional layer 52, a second touch insulating layer 53, a second touch functional layer 54, and a touch protection layer 55. The first touch insulating layer 51 is disposed on the side of the packaging layer group 4 away from the substrate 1, the first touch functional layer 52 is disposed on the side of the first touch insulating layer 51 away from the substrate 1, the second touch insulating layer 53 is disposed on the side of the first touch functional layer 52 away from the substrate 1, and the second touch functional layer 54 is disposed on the side of the second touch insulating layer 53 away from the substrate 1. The touch protection layer 55 is disposed on the side of the second touch functional layer 54 away from the substrate 1, and the touch protection layer 55 can protect the second touch functional layer 54. Of course, the touch layer group 5 may not be provided.

[0117] The above is the structure of the display portion 101 of the flexible display panel 10. Part of the film layers of the display portion 101 extend to the bending portion 10211 to form the specific structure of the bending portion 10211. The bending portion 10211 is mainly used to connect the display portion 101 and the bonding portion 1022 through connecting traces. Therefore, part of the film layers of the driving substrate 2 extend to the bending portion 10211 to form the specific structure of the bending portion 10211, that is, the driving substrate 2 includes the bending portion 10211.

[0118] Referring to Figure 4 and Figure 5 As shown, the bending portion 10211 needs to be bent. Therefore, the thickness of the bending portion 10211 needs to be set thinner to bend smoothly, that is, the bending portion 10211 is thinned. To ensure the smooth bending of the bending portion 10211, a part of the side of the bending portion 10211 close to the display portion 101 and a part of the side away from the display portion 101 also need to be thinned. The thinned part forms the thinning portion 1021. The thinning portion 1021 is included in the driving substrate 2, and the thinning portion 1021 includes the bending portion 10211.

[0119] The thinning portion 1021 may include a first organic layer 213, a plurality of first connecting traces 2113, and a second organic layer 214 stacked in sequence. The first connecting traces 2113 are completely wrapped by the first organic layer 213 and the second organic layer 214, so that any part of the first connecting traces 2113 is not directly connected to the inorganic material; the materials of the first organic layer 213 and the second organic layer 214 are both organic materials. The modulus of the organic material is small and it is easy to deform, that is, the organic material is easy to be bent, so that the bending portion 10211 is easy to be bent; the organic material can also absorb the stress generated when the first connecting traces 2113 are bent, and avoid the first connecting traces 2113 from breaking due to long-term bending.

[0120] The first connecting traces 2113 extend from the side of the bending portion 10211 close to the display area AA to the bending portion 10211, and extend from the bending portion 10211 to the side of the bending portion 10211 away from the display area AA.

[0121] Specifically, referring to Figure 4 and Figure 5 As shown, the thinning portion 1021 may include a first insulating layer 21, a barrier layer 22, a second insulating layer 24, first connecting traces 2113, and a second planarization layer 212 stacked in sequence; that is, the thinning portion 1021 is formed by removing the grooves 1021a formed by the active layer, the buffer layer 25, the gate insulating layer 26, the gate layer 27, the interlayer dielectric layer 28, the first connecting conductor layer 29, etc. That is, the thinning portion 1021 is provided with grooves 1021a, and the grooves 1021a have a groove bottom wall and a groove side wall.

[0122] The first organic layer 213 may include a first sub-organic layer 2131 and a second sub-organic layer 2132. The first sub-organic layer 2131 covers the bottom wall of the groove, and the second sub-organic layer 2132 covers the side wall of the groove. Specifically, the second insulating layer 24 serves as the first sub-organic layer 2131, that is, the second insulating layer 24 is used as the first sub-organic layer 2131 to cover the bottom wall of the groove 1021a. The first planarization layer 210 serves as the second sub-organic layer 2132, that is, the side wall of the groove 1021a covers the first planarization layer 210. Specifically, the side walls of the buffer layer 25, the gate insulating layer 26, and the interlayer dielectric layer 28 are all covered by the first planarization layer 210. A part of the first connection trace 2113 is disposed on the side of the first planarization layer 210 away from the display portion 101. By means of the first planarization layer 210, it is possible to prevent the first connection trace 2113 from contacting the side walls of the buffer layer 25, the gate insulating layer 26, and the interlayer dielectric layer 28.

[0123] The second planarization layer 212 serves as the second organic layer 214, that is, the second planarization layer 212 is used as the second organic layer 214.

[0124] Of course, in some other exemplary embodiments of the present disclosure, it may also be that the first planarization layer 210 serves as the first organic layer 213, that is, the first planarization layer 210 also covers the bottom wall of the groove 1021a.

[0125] It should be noted that since the groove 1021a can be formed by at least two patterning processes, the side wall of the groove 1021a may be uneven and have a stepped structure. For example, the buffer layer 25 may protrude from the gate insulating layer 26 by about 12 micrometers. In order to ensure the covering effect of the first organic layer 213 on the side wall of the groove 1021a and prevent the first organic layer 213 from being damaged during long-term use, the minimum covering thickness of the first organic layer 213 is about 5 micrometers, that is, the minimum covering thickness of the first planarization layer 210 is about 5 micrometers.

[0126] Taking the gate line 272 as an example, the connection structure of the first connection line 2113 is explained. The gate line 272 can extend to the non-display part 102 between the display part 101 and the thinning part 1021. The first connection conductor layer 29 can also include a transition part 293, and the transition part 293 is connected to the gate line 272 through a via hole on the interlayer dielectric layer 28. The second connection conductor layer 211 can include a first connection line 2113, and the first connection line 2113 is connected to the transition part 293 through a via hole on the first planarization layer 210, so as to realize the connection between the gate line 272 and the first connection line 2113. The gate 271 signal can be transmitted to the gate line 272 through the first connection line 2113, and then transmitted to the gate 271 through the gate line 272. Of course, the first connection line 2113 can be connected to display signal lines such as data lines, touch signal lines, etc., which will not be explained one by one here.

[0127] Alternatively, refer to Figure 5 As shown, the bending portion 10211 may also include a protective layer 215, which is disposed on the side of the second organic layer 214 away from the first connecting line. The protective layer 215 may be formed by extending the touch protection layer 55 to the bending portion 10211. The material of the protective layer 215 may be an organic material, for example, acrylic, epoxy resin, etc. The thickness of the protective layer 215 is greater than or equal to 0.5 microns and less than or equal to 5 microns. For example, the thickness of the protective layer 215 may be 1 micron, 1.5 microns, 2 microns, 2.5 microns, 3 microns, 3.5 microns, 4 microns, 4.5 microns, etc. The protective layer 215 may play a role in adjusting the stress neutral layer, that is, making the first connecting line 2113 a stress neutral layer or closer to a stress neutral layer, thereby reducing the tensile strain of the first connecting line 2113, and improving the impact resistance and bending resistance of the first connecting line 2113.

[0128] Reference Figure 6 and Figure 7 As shown, in some other example embodiments of the present disclosure, the connecting wiring can be set to a double-layer structure. Specifically, the thinning portion 1021 can also include a third organic layer 217 and a second connecting wiring 216, and the second connecting wiring 216 is connected in parallel with the first connecting wiring 2113; so that when either the second connecting wiring 216 or the first connecting wiring 2113 is broken, the signal can also be transmitted through the other one, thereby ensuring the stability of signal transmission; when neither the second connecting wiring 216 nor the first connecting wiring 2113 is broken, the resistance can be reduced, thereby reducing power consumption.

[0129] Reference Figure 6As shown, the second connection trace 216 can be disposed between the second organic layer 214 and the third organic layer 217. The second connection trace 216 is completely wrapped by the second organic layer 214 and the third organic layer 217, also ensuring that no part of the second connection trace 216 is directly connected to the inorganic material. The materials of both the second organic layer 214 and the third organic layer 217 are organic materials. The modulus of the organic material is small and it is easy to deform, that is, the organic material is easy to be bent, making it easy to form the bent portion 10211. The organic material can also absorb the stress generated when the second connection trace 216 is bent, preventing the second connection trace 216 from breaking due to long-term bending. The second connection trace 216 and the first connection trace 2113 can be connected in parallel through a via hole in the second organic layer 214.

[0130] For example, the second connection trace 216 is disposed on the side of the second organic layer 214 away from the substrate 1, and the third organic layer 217 is disposed on the side of the second connection trace 216 away from the substrate 1. The second organic layer 214 can be formed separately through a patterning process, and the third organic layer 217 can be formed by extending the second planarization layer 212 to the non-display portion 102.

[0131] Referring to Figure 7 As shown, the second connection trace 216 can be disposed between the first organic layer 213 and the third organic layer 217. The second connection trace 216 is completely wrapped by the first organic layer 213 and the third organic layer 217, such that no part of the second connection trace 216 is directly connected to the inorganic material. The materials of both the first organic layer 213 and the third organic layer 217 are organic materials. The modulus of the organic material is small and it is easy to deform, that is, the organic material is easy to be bent, making it easy to form the bent portion 10211. The organic material can also absorb the stress generated when the second connection trace 216 is bent, preventing the second connection trace 216 from breaking due to long-term bending. The second connection trace 216 and the first connection trace 2113 can be connected in parallel through a via hole in the first organic layer 213.

[0132] For example, the second connection trace 216 is disposed on the side of the first organic layer 213 close to the substrate 1, and the third organic layer 217 is disposed on the side of the second connection trace 216 close to the substrate 1; the second connection trace 216 can be formed separately through a patterning process, and the third organic layer 217 can be formed by extending the first insulating layer 21 to the non-display portion 102; moreover, the barrier layer 22 is also removed, and the sidewall of the barrier layer 22 also forms a part of the groove sidewall of the groove 1021a, and the sidewall of the barrier layer 22 is covered by the second insulating layer 24.

[0133] Optionally, referring to Figure 8 and Figure 9As shown, when the connection trace is set to a double-layer structure, a protective layer 215 can also be provided; refer to Figure 8 As shown, the protective layer 215 can be provided on the side of the third organic layer 217 away from the first connection trace; refer to Figure 9 As shown, the protective layer 215 can be provided on the side of the second organic layer 214 away from the first connection trace. The protective layer 215 can be formed by extending the touch protective layer 55 to the bending portion 10211. The material of the protective layer 215 can be an organic material. For example, it can be acrylic, epoxy resin, etc. The thickness of the protective layer 215 is greater than or equal to 0.5 microns and less than or equal to 5 microns. For example, the thickness of the protective layer 215 can be 1 micron, 1.5 microns, 2 microns, 2.5 microns, 3 microns, 3.5 microns, 4 microns, 4.5 microns, etc. Similarly, the protective layer 215 can play a role in stress neutral layer adjustment, that is, making the first connection trace 2113 or the second connection trace 216 a stress neutral layer, or making the first connection trace 2113 and the second connection trace 216 closer to the stress neutral layer, thereby reducing the tensile strain of the first connection trace 2113 and the second connection trace 216 and improving the impact resistance and bending resistance of the first connection trace 2113, etc.

[0134] Please continue to refer to Figure 1 As shown, an adhesive layer group 40 is provided on the display side of the flexible display panel 10, and a cover plate 20 is provided on the side of the adhesive layer group 40 away from the flexible display panel 10; specifically, the adhesive layer group 40 is provided on the display surface of the flexible display panel 10, and the cover plate 20 is provided on the side of the adhesive layer group 40 away from the flexible display panel 10; so that the cover plate 20 is provided on the display side of the flexible display panel 10, and the adhesive layer group 40 is bonded between the flexible display panel 10 and the cover plate 20, that is, the flexible display panel 10 and the cover plate 20 are directly bonded through the adhesive layer group 40, and no polarizer is provided between the flexible display panel 10 and the cover plate 20.

[0135] In the present exemplary embodiment, a light-shielding layer 30 is provided on the side of the cover plate 20 close to the flexible display panel 10, and the light-shielding layer 30 is located in the non-display area NAA.

[0136] At least one adhesive layer 40c of the adhesive layer group 40 is located on the side of the light-shielding layer 30 close to the flexible display panel 10. For example, when the adhesive layer group 40 includes one adhesive layer 40c, this adhesive layer 40c is located on the side of the light-shielding layer 30 close to the flexible display panel 10; when the adhesive layer group 40 includes two adhesive layers 40c, one or two adhesive layers 40c can be located on the side of the light-shielding layer 30 close to the flexible display panel 10; when the adhesive layer group 40 includes three adhesive layers 40c, one, two or three adhesive layers 40c can be located on the side of the light-shielding layer 30 close to the flexible display panel 10. The adhesive layer group 40 can also include more adhesive layers 40c, which will not be elaborated one by one here.

[0137] The adhesive layer group 40 can include a protection part 40a, and the orthographic projection of the protection part 40a on the cover plate 20 is located within the orthographic projection of the light-shielding layer 30 on the cover plate 20. For example, all the edge lines of the orthographic projection of the protection part 40a on the cover plate 20 can coincide with all the edge lines of the orthographic projection of the light-shielding layer 30 on the cover plate 20; it can also be that the edge line of the orthographic projection of the protection part 40a on the cover plate 20 close to the display area AA coincides with the edge line of the orthographic projection of the light-shielding layer 30 on the cover plate 20 close to the display area AA, while the other edge lines of the orthographic projection of the protection part 40a on the cover plate 20 are located inside the other edge lines of the orthographic projection of the light-shielding layer 30 on the cover plate 20.

[0138] The protection part 40a covers the bending line 10211L. For example, the edge line of the protection part 40a close to the display area AA can coincide with the bending line 10211L, or the bending line 10211L can be located between the edge line of the protection part 40a close to the display area AA and the edge line away from the display area AA, so that the bending line 10211L is closer to the display area AA than the edge line of the protection part 40a away from the display area AA. Specifically, the distance between the bending line 10211L and the edge line of the protection part 40a away from the display area AA is greater than 0 and less than or equal to 0.2 mm. For example, the distance between the bending line 10211L and the edge line of the protection part 40a away from the display area AA can be 0.02 mm, 0.05 mm, 0.07 mm, 0.1 mm, 0.13 mm, 0.15 mm, 0.18 mm, etc.

[0139] Before the bending part 10211 is bent, the protection part 40a is not cured because it is blocked by the light-shielding layer 30. When the bending part 10211 is bent, the pulling force generated by the protection part 40a on the bending part 10211 is small, avoiding the defect of tearing of the bending part 10211 due to a large pulling force, and also avoiding the defect of open circuit of the circuit traces in the bending part 10211 due to a large pulling force.

[0140] In addition, the light-shielding layer 30 can accurately control the position of the bending start line 10211L, which is beneficial to the consistency of the manufacturing process of the display module. It can also make the bending start line 10211L of the bent portion 10211 closer to the display portion 101, thereby reducing the width of the non-display area NAA of the flexible display panel 10, which is conducive to the narrow bezel setting.

[0141] After experimental verification, for the same display module (i.e., other structures are the same), the width of the non-display area NAA in the prior art is about 0.8 mm - 1.0 mm, while the width of the non-display area NAA in the present disclosure is about 0.4 mm - 1.0 mm, which is about 50% of the prior art.

[0142] The adhesive layer group 40 may further include a curing portion 40b. The curing portion 40b is connected to the protection portion 40a, and the flexible display panel 10 and the cover plate 20 can be fixedly connected through the curing portion 40b.

[0143] Optionally, the storage modulus of the curing portion 40b is greater than the storage modulus of the protection portion 40a, that is, the protection portion 40a is not cured all the time; specifically, the difference between the storage modulus of the curing portion 40b and the storage modulus of the protection portion 40a is greater than or equal to 30 kPa. For example, the difference between the storage modulus of the curing portion 40b and the storage modulus of the protection portion 40a is greater than or equal to 100 kPa; specifically, for example, the difference between the storage modulus of the curing portion 40b and the storage modulus of the protection portion 40a can be 50 kPa, 80 kPa, 100 kPa, 120 kPa, 150 kPa, 170 kPa, 200 kPa, 230 kPa, 250 kPa, 280 kPa, 300 kPa, etc.

[0144] The storage modulus of the curing portion 40b can be greater than or equal to 50 kPa and less than or equal to 1 GPa (1000000 KPa). For example, the storage modulus of the curing portion 40b can be 100 KPa, 500 KPa, 1000 KPa, 5000 KPa, 10000 KPa, 50000 KPa, 100000 KPa, 500000 KPa, etc.

[0145] The storage modulus of the protection portion 40a can be greater than or equal to 20 kPa and less than or equal to 1000 kPa. For example, the storage modulus of the protection portion 40a can be 100 KPa, 150 KPa, 200 KPa, 250 KPa, 300 KPa, 350 KPa, 400 KPa, 450 KPa, 500 KPa, 550 KPa, 600 KPa, 650 KPa, 700 KPa, 750 KPa, 800 KPa, 850 KPa, 900 KPa, 950 KPa, etc.

[0146] The storage modulus generally refers to the Young's modulus. The magnitude of the Young's modulus indicates the rigidity of the material. The larger the Young's modulus, the less likely the material is to deform.

[0147] It should be noted that the above data are all values at a temperature of 25 °C.

[0148] Of course, in some other exemplary embodiments of the present disclosure, it is also possible that the storage modulus of the curing portion 40b is equal to the storage modulus of the protection portion 40a. That is to say, after the bending of the bending portion 10211 is completed, the uncured protection portion 40a can be cured.

[0149] In the present exemplary embodiment, the display module may further include a first support layer 50. The first support layer 50 is disposed on the non-display side of the flexible display panel 10, and the first support layer 50 is used to support the flexible display panel 10. The first support layer 50 extends from the display area AA to the non-display area NAA, that is, the first support layer 50 is provided not only in the display area AA but also in the non-display area NAA.

[0150] Refer to Figure 1 、 Figure 10 – Figure 12 As shown in

[0151] Refer to Figure 13 – Figure 16As shown, in some exemplary embodiments of the present disclosure, when the orthographic projection of the first support layer 50 on the cover plate 20 does not overlap with the orthographic projection of the light-shielding layer 30 on the cover plate 20, that is, when the first support layer 50 does not extend directly below the light-shielding layer 30; it can also be said that when the orthographic projection of the first support layer 50 on the cover plate 20 does not overlap with the orthographic projection of the protection portion 40a on the cover plate 20, that is, when the first support layer 50 does not extend directly below the protection portion 40a; the protection portion 40a covers the bending line 10211L, that is, the orthographic projection of the bending line 10211L on the cover plate 20 is located within the orthographic projection of the protection portion 40a on the cover plate 20. For example, the orthographic projection of the bending line 10211L on the cover plate 20 may coincide with the edge along the display portion 101 of the orthographic projection of the protection portion 40a on the cover plate 20, that is, the orthographic projection of the bending line 10211L on the cover plate 20 may coincide with the edge along the display portion 101 of the orthographic projection of the curing portion 40b on the cover plate 20. It can also be that there is a non-zero distance between the orthographic projection of the bending line 10211L on the cover plate 20 and the edge along the display portion 101 of the orthographic projection of the protection portion 40a on the cover plate 20; it can also be said that the orthographic projection of the bending line 10211L on the cover plate 20 is located within the orthographic projection of the light-shielding layer 30 on the cover plate 20. For example, the orthographic projection of the bending line 10211L on the cover plate 20 may coincide with the edge along the display portion 101 of the orthographic projection of the light-shielding layer 30 on the cover plate 20, and it can also be that there is a non-zero distance between the orthographic projection of the bending line 10211L on the cover plate 20 and the edge along the display portion 101 of the orthographic projection of the light-shielding layer 30 on the cover plate 20. In this case, the position of the bending line 10211L is mainly determined by the protection portion 40a formed by shielding with the light-shielding layer 30, and the bending line 10211L will not exceed the protection portion 40a towards the display portion 101 side.

[0152] Referring to Figure 1 , Figure 10 , Figure 13 and Figure 14As shown, in some exemplary embodiments of the present disclosure, the light-shielding layer 30 may be disposed on the side of the cover plate 20 close to the flexible display panel 10. Specifically, the light-shielding layer 30 may be arranged in a ring shape surrounding the display area AA. The light-shielding layer 30 may extend to the outer peripheral edge of the cover plate 20. The shape of the light-shielding layer 30 is adapted to the shape of the cover plate 20. For example, when the cover plate 20 is circular, the light-shielding layer 30 is circular; when the cover plate 20 is rectangular, the light-shielding layer 30 is a rectangular ring; when the cover plate 20 is oval, the light-shielding layer 30 is an oval ring. Of course, in some other exemplary embodiments of the present disclosure, the cover plate 20 and the light-shielding layer 30 may also be of other shapes, which will not be elaborated here; the light-shielding layer 30 is not arranged in a ring shape, and the light-shielding layer 30 may be only disposed on the side where the bending portion 10211 is provided; the light-shielding layer 30 may also be arranged in a ring shape with a break. The bending portion 10211 can be blocked by the light-shielding layer 30, preventing the specific structure of the bending portion 10211 from being seen through the cover plate 20 and affecting the display effect.

[0153] In this case, referring to Figure 1 and Figure 13 as shown, the adhesive layer group 40 may be arranged as a single-layer structure, that is, the adhesive layer group 40 may include a single adhesive layer 40c. The material of the adhesive layer 40c may be a rubber-type material, including but not limited to natural rubber, synthetic rubber, silicone elastomer, etc.; the material of the adhesive layer 40c may also be a resin type, including but not limited to polyurethane resin, silicone resin, acrylate resin, epoxy resin, etc.

[0154] Of course, referring to Figure 10 – Figure 14 as shown, the adhesive layer group 40 may be arranged as a multi-layer structure. For example, the adhesive layer group 40 may include a base layer 403, a first adhesive layer 401, and a second adhesive layer 402; the first adhesive layer 401 is disposed on the side of the base layer 403 close to the cover plate 20, and the first adhesive layer 401 is bonded between the base layer 403 and the cover plate 20; the second adhesive layer 402 is disposed on the side of the base layer 403 close to the flexible display panel 10, and the second adhesive layer 402 is bonded between the base layer 403 and the flexible display panel 10. The materials of the first adhesive layer 401 and the second adhesive layer 402 may be rubber-type materials, including but not limited to natural rubber, synthetic rubber, silicone elastomer, etc.; the materials of the first adhesive layer 401 and the second adhesive layer 402 may also be resin types, including but not limited to polyurethane resin, silicone resin, acrylate resin, epoxy resin, etc.

[0155] In this case, the protection part 40a may include a first protection part 401a and a second protection part 402a. The first protection part 401a is included in the first adhesive layer 401, that is, the first protection part 401a is the part of the first adhesive layer 401 blocked by the light-shielding layer 30. The second protection part 402a is included in the second adhesive layer 402, that is, the second protection part 402a is the part of the second adhesive layer 402 blocked by the light-shielding layer 30. The orthographic projection of the second protection part 402a on the cover plate 20 is located within the orthographic projection of the first protection part 401a on the cover plate 20. For example, the edge line of the orthographic projection of the second protection part 402a on the cover plate 20 may coincide with the edge line of the orthographic projection of the first protection part 401a on the cover plate. Since when the adhesive layer group 40 is cured by light, the larger the inclination angle of the light is as it is farther from the light-shielding layer 30, the light will shine on the area directly below the light-shielding layer 30, and a part of the adhesive layer group 40 in the area directly below the light-shielding layer is also cured. As a result, the edge line of the orthographic projection of the second protection part 402a on the cover plate 20 close to the display area AA is located inside the orthographic projection of the first protection part 401a on the cover plate 20, while the other edge lines of the orthographic projection of the second protection part 402a on the cover plate 20 coincide with the other edge lines of the orthographic projection of the first protection part 401a on the cover plate.

[0156] The curing part 40b may include a first curing part 401b and a second curing part 402b. The first curing part 401b is included in the first adhesive layer 401, that is, the first curing part 401b is the part of the first adhesive layer 401 not blocked by the light-shielding layer 30. The second curing part 402b is included in the second adhesive layer 402, that is, the second curing part 402b is the part of the second adhesive layer 402 not blocked by the light-shielding layer 30.

[0157] Referring to Figure 11 and Figure 15 As shown, in some other exemplary embodiments of the present disclosure, the light-shielding layer 30 may not be provided on the side of the cover plate 20 close to the flexible display panel 10. Such a setting can reduce the alignment accuracy during the installation of the cover plate 20, thereby reducing the process cost and improving the assembly efficiency. Moreover, the process error value during the fitting of the cover plate 20 does not need to be considered, further reducing the bezel width.

[0158] In this case, the adhesive layer group 40 may include a base layer 403, a first adhesive layer 401, and a second adhesive layer 402. The base layer 403 may include a light-transmitting part 4031 and a light-shielding part 4032. The light-transmitting part 4031 and the light-shielding part 4032 are connected to each other. The light-transmitting part 4031 is provided in the display area AA and extends from the display area AA to the non-display area NAA. The light-shielding part 4032 is located in the non-display area NAA, and the light-shielding part 4032 is the light-shielding layer 30, that is, the light-shielding part 4032 serves as the light-shielding layer 30.

[0159] The light-shielding portion 4032 can be set as an annular shape surrounding the light-transmitting portion 4031. The light-shielding portion 4032 can extend to the outer peripheral edge of the adhesive layer group 40. The shape of the light-shielding portion 4032 is adapted to the shape of the cover plate 20. For example, when the cover plate 20 is set as a circle, the light-shielding portion 4032 is set as an annular ring; when the cover plate 20 is set as a rectangle, the light-shielding portion 4032 is set as a rectangular ring; when the cover plate 20 is set as an ellipse, the light-shielding portion 4032 is set as an elliptical ring. Of course, the cover plate 20 and the light-shielding portion 4032 can also be other shapes, which will not be elaborated one by one here; the light-shielding portion 4032 can not be set as an annular shape, and the light-shielding portion 4032 can be only set on the side where the bending portion 10211 is provided; the light-shielding portion 4032 can also be set as an annular shape with a break.

[0160] The first adhesive layer 401 is disposed on the side of the base layer 403 close to the cover plate 20, and the first adhesive layer 401 is bonded between the base layer 403 and the cover plate 20; the second adhesive layer 402 is disposed on the side of the base layer 403 close to the flexible display panel 10, and the second adhesive layer 402 is bonded between the base layer 403 and the flexible display panel 10. The materials of the first adhesive layer 401 and the second adhesive layer 402 can be rubber-type materials, including but not limited to natural rubber, synthetic rubber, silicone elastomers, etc.; the materials of the first adhesive layer 401 and the second adhesive layer 402 can also be resin-type, including but not limited to polyurethane resin, silicone resin, acrylate resin, epoxy resin, etc.

[0161] In this case, the protection portion 40a is included in the second adhesive layer 402, and the protection portion 40a is the part of the second adhesive layer 402 blocked by the light-shielding layer 30; while the first adhesive layer 401 is not blocked by the light-shielding layer 30 and is completely cured during the curing process, so that the first adhesive layer 401 does not form the protection portion 40a. That is, the second adhesive layer 402 includes a second protection portion 402a and a second curing portion 402b, and the second protection portion 402a is the protection portion 40a; the first adhesive layer 401 only includes a first curing portion 401b.

[0162] Refer to Figure 12 – Figure 16 As shown, in some further exemplary embodiments of the present disclosure, the light-shielding layer 30 can be set as two layers, and the two light-shielding layers 30 are a first light-shielding layer 30a and a second light-shielding layer 30b.

[0163] The first light-shielding layer 30a is disposed on the side of the cover plate 20 close to the flexible display panel 10. Specifically, the first light-shielding layer 30a can be arranged as a ring surrounding the display area AA. The first light-shielding layer 30a can extend to the outer peripheral edge of the cover plate 20. The shape of the first light-shielding layer 30a is adapted to the shape of the cover plate 20. For example, when the cover plate 20 is arranged as a circle, the first light-shielding layer 30a is arranged as a circular ring; when the cover plate 20 is arranged as a rectangle, the first light-shielding layer 30a is arranged as a rectangular ring; when the cover plate 20 is arranged as an ellipse, the first light-shielding layer 30a is arranged as an elliptical ring. Of course, in some other exemplary embodiments of the present disclosure, the cover plate 20 and the first light-shielding layer 30a can also be of other shapes, which will not be described one by one here; the first light-shielding layer 30a is not arranged as a ring, and the first light-shielding layer 30a can be only arranged on the side where the bending portion 10211 is provided, and the first light-shielding layer 30a can also be arranged as a ring with a break.

[0164] In this case, the adhesive layer group 40 can include a base layer 403, a first adhesive layer 401 and a second adhesive layer 402; the base layer 403 can include a light-transmitting portion 4031 and a light-shielding portion 4032. The light-transmitting portion 4031 and the light-shielding portion 4032 are connected to each other. The light-transmitting portion 4031 is disposed in the display area AA and extends from the display area AA to the non-display area NAA. The light-shielding portion 4032 is located in the non-display area NAA, and the light-shielding portion 4032 is the second light-shielding layer 30b, that is, the light-shielding portion 4032 serves as the second light-shielding layer 30b.

[0165] The second light-shielding layer 30b can be arranged as a ring surrounding the light-transmitting portion 4031. The second light-shielding layer 30b can extend to the outer peripheral edge of the adhesive layer group 40. The shape of the second light-shielding layer 30b is adapted to the shape of the cover plate 20. For example, when the cover plate 20 is arranged as a circle, the second light-shielding layer 30b is arranged as a circular ring; when the cover plate 20 is arranged as a rectangle, the second light-shielding layer 30b is arranged as a rectangular ring; when the cover plate 20 is arranged as an ellipse, the second light-shielding layer 30b is arranged as an elliptical ring. Of course, the cover plate 20 and the second light-shielding layer 30b can also be of other shapes, which will not be described one by one here; the second light-shielding layer 30b can be not arranged as a ring, and the second light-shielding layer 30b can be only arranged on the side where the bending portion 10211 is provided; the second light-shielding layer 30b can also be arranged as a ring with a break.

[0166] The first adhesive layer 401 is disposed on one side of the base layer 403 close to the cover plate 20, and the first adhesive layer 401 is bonded between the base layer 403 and the cover plate 20; the second adhesive layer 402 is disposed on one side of the base layer 403 close to the flexible display panel 10, and the second adhesive layer 402 is bonded between the base layer 403 and the flexible display panel 10. The materials of the first adhesive layer 401 and the second adhesive layer 402 can be rubber-type materials, including but not limited to natural rubber, synthetic rubber, silicone elastomers, etc.; the materials of the first adhesive layer 401 and the second adhesive layer 402 can also be resin-type, including but not limited to polyurethane resin, silicone resin, acrylate resin, epoxy resin, etc.

[0167] In this case, the protection part 40a can include a first protection part 401a and a second protection part 402a. The first protection part 401a is included in the first adhesive layer 401, that is, the first protection part 401a is the part of the first adhesive layer 401 blocked by the first light-shielding layer 30a, and the second protection part 402a is included in the second adhesive layer 402, that is, the second protection part 402a is the part of the second adhesive layer 402 blocked by the second light-shielding layer 30b.

[0168] The curing part 40b can include a first curing part 401b and a second curing part 402b; the first curing part 401b is included in the first adhesive layer 401, that is, the first curing part 401b is the part of the first adhesive layer 401 not blocked by the light-shielding layer 30; the second curing part 402b is included in the second adhesive layer 402, that is, the second curing part 402b is the part of the second adhesive layer 402 not blocked by the light-shielding layer 30.

[0169] Optionally, the orthographic projection of the first light-shielding layer 30a on the cover plate 20 overlaps with the orthographic projection of the second light-shielding layer 30b on the cover plate 20, and the second light-shielding layer 30b is closer to the display area AA than the first light-shielding layer 30a. Specifically, the inner edge of the second light-shielding layer 30b close to the display area AA is closer to the display area AA than the inner edge of the first light-shielding layer 30a close to the display area AA, and the second light-shielding layer 30b extends to directly below the first light-shielding layer 30a.

[0170] With such a setting, the bending part 10211 is jointly blocked by the first light-shielding layer 30a and the second light-shielding layer 30b, avoiding the specific structure of the bending part 10211 being seen through the cover plate 20 and affecting the display effect; the inner diameter of the first light-shielding layer 30a can be set larger, reducing the alignment accuracy during the installation of the cover plate 20, thereby reducing the process cost and improving the assembly efficiency.

[0171] The orthographic projection of the first protection part 401a on the cover plate 20 is located within the orthographic projection of the second protection part 402a on the cover plate 20. Specifically, the edge line of the orthographic projection of the first protection part 401a on the cover plate 20 that is close to the display area AA is located inside the orthographic projection of the second protection part 402a on the cover plate 20, and the other edge lines of the orthographic projection of the first protection part 401a on the cover plate 20 may coincide with the other edge lines of the orthographic projection of the second protection part 402a on the cover plate 20.

[0172] The orthographic projection of the bending start line 10211L on the cover plate 20 is located within the orthographic projection of the second light-shielding layer 30b on the cover plate 20.

[0173] For example, it may be that the edge line of the orthographic projection of the bending start line 10211L on the cover plate 20 that is close to the display part 101 coincides with the edge line of the orthographic projection of the second light-shielding layer 30b on the cover plate 20 that is close to the display part 101, or there may be a non-zero distance between the edge line of the orthographic projection of the bending start line 10211L on the cover plate 20 and the edge line of the orthographic projection of the second light-shielding layer 30b on the cover plate 20 that is close to the display part 101; it can also be said that the orthographic projection of the bending start line 10211L on the cover plate 20 is located within the orthographic projection of the second protection part 402a on the cover plate 20. For example, it may be that the edge line of the orthographic projection of the bending start line 10211L on the cover plate 20 that is close to the display part 101 coincides with the edge line of the orthographic projection of the second protection part 402a on the cover plate 20 that is close to the display part 101, that is, it may be that the edge line of the orthographic projection of the bending start line 10211L on the cover plate 20 coincides with the edge line of the orthographic projection of the second curing part 402b on the cover plate 20 that is far from the display part 101, or there may be a non-zero distance between the edge line of the orthographic projection of the bending start line 10211L on the cover plate 20 and the edge line of the orthographic projection of the second protection part 402a on the cover plate 20 that is close to the display part 101.

[0174] In some exemplary embodiments of the present disclosure, with reference to Figure 17As shown, the display module may further include an edge filling portion 60. The edge filling portion 60 is disposed in the non-display area NAA and is located on the side of the bending portion 10211 and the adhesive layer group 40 away from the display area AA. Specifically, the edge filling portion 60 extends from the side of the bending portion 10211 and the adhesive layer group 40 away from the display area AA to the edge of the cover plate 20. The edge filling portion 60 can block the bending portion 10211, preventing the specific structure of the bending portion 10211 from being seen through the cover plate 20 and affecting the display effect. In addition, the edge filling portion 60 extends from the side of the cover plate 20 close to the flexible display panel 10 to the side of the bending portion 10211 facing away from the cover plate 20. The edge filling portion 60 substantially covers all the portions of the bending portion 10211 not covered by the protection portion 40a. The edge filling portion 60 can shape the bending structure of the bending portion 10211, preventing the bending portion 10211 from deforming during use and causing the circuit traces in the bending portion 10211 to be disconnected. Moreover, the edge filling portion 60 can provide impact protection for this area.

[0175] In some exemplary embodiments of the present disclosure, referring to Figure 18 As shown, the display module may further include a bending filling portion 70. The bending filling portion 70 is filled in the accommodation space of the bending portion 10211 close to the display area AA, and the bending filling portion 70 is disposed in the non-display area NAA. The bending filling portion 70 can shape the bending structure of the bending portion 10211, preventing the bending portion 10211 from deforming during use and causing the circuit traces in the bending portion 10211 to be disconnected.

[0176] It should be noted that Figure 1 、 Figure 10 – Figure 18 In all the exemplary embodiments shown, the edge filling portion 60 and / or the bending filling portion 70 can be provided, and details will not be described herein again.

[0177] Referring to Figure 1 、 Figure 10 – Figure 18 As shown, the display module may further include a second support layer 80 and a filling spacer layer 90. Referring to Figure 19As shown in the figure, before the bending portion 10211 is bent, the second support layer 80 is disposed on the side of the bonding portion 1022 away from the cover plate 20. Since the flexible display panel 10 is flexible and is prone to bending, it is not easy to implement the bonding process. The second support layer 80 can support the bonding portion 1022 to facilitate the implementation of the bonding process. After the bending portion 10211 is bent, the second support layer 80 is bent to the side of the first support layer 50 away from the display portion 101, and a filling spacer layer 90 is disposed between the second support layer 80 and the first support layer 50. The filling spacer layer 90 can increase the bending radius of the bending portion 10211 to prevent the bending portion 10211 from forming an excessively small bending radius, which may cause excessive bending stress in the first connection trace 2113 and the second connection trace 216 in the bending portion 10211 and result in fracture.

[0178] Based on the same inventive concept, an exemplary embodiment of the present disclosure provides a method for manufacturing a display module for manufacturing the display module described in any one of the above. Referring to Figure 20 as shown in the figure, the manufacturing method may include the following steps:

[0179] Step S10: Provide a flexible display panel, where the flexible display panel includes a display portion and a non-display portion, and the non-display portion includes a bending portion.

[0180] Step S20: Form an adhesive layer group on the display side of the flexible display panel.

[0181] Step S30: Form a light-shielding layer in the non-display area.

[0182] Step S40: Provide a cover plate and bond the cover plate to the side of the adhesive layer group away from the flexible display panel, and at least one adhesive layer of the adhesive layer group is located on the side of the light-shielding layer close to the flexible display panel.

[0183] Step S50: Cure the adhesive layer group so that the portion of the adhesive layer group blocked by the light-shielding layer is not cured to form a protection portion, and the orthographic projection of the protection portion on the cover plate is located within the orthographic projection of the light-shielding layer on the cover plate.

[0184] Step S60: Bend the bending portion into a curved structure. The bending portion has a bending start line, and the protection portion covers the bending start line.

[0185] The method for manufacturing the display module will be described by way of example below.

[0186] Provide a flexible display panel 10. The flexible display panel 10 includes a display portion 101 and a non-display portion 102. The non-display portion 102 includes a bending portion 10211. The specific structure of the flexible display panel 10 has been described in detail above. Therefore, it will not be elaborated here.

[0187] Bond the first support layer 50 and the second support layer 80 to the non-display surface of the flexible display panel 10, and bond the filling spacer layer 90 to the side of the first support layer 50 facing away from the flexible display panel 10. The flexible display panel 10 can be supported to a certain extent by the first support layer 50, the second support layer 80, and the filling spacer layer 90, facilitating the subsequent processes.

[0188] When the bonding layer group 40 is a single adhesive layer 40c, form the adhesive layer 40c on the display surface of the flexible display panel 10 through processes such as coating and spin coating.

[0189] When the bonding layer group 40 includes the first adhesive layer 401, the base layer 403, and the second adhesive layer 402; form the second adhesive layer 402 on the display surface of the flexible display panel 10 through processes such as coating and spin coating; attach the base layer 403 to the side of the second adhesive layer 402 facing away from the flexible display panel 10. The base layer 403 may include a light-transmitting portion 4031 and a light-shielding layer 30. The light-shielding layer 30 can be formed by coating black ink on the base layer 403, or the base layer 403 itself may already have a light-shielding layer 30 formed thereon; form the first adhesive layer 401 on the side of the base layer 403 facing away from the flexible display panel 10 through processes such as coating and spin coating.

[0190] Certainly, in some other exemplary embodiments of the present disclosure, the base layer 403 may only include the light-transmitting portion 4031 and not include the light-shielding layer 30. However, the forming method of the bonding layer group 40 is still the above method, except that it is not necessary to coat black ink on the base layer 403 to form the light-shielding layer 30.

[0191] Provide a cover plate 20 and bond the cover plate 20 to the side of the bonding layer group 40 facing away from the flexible display panel 10; when the bonding layer group 40 is a single adhesive layer 40c, bond the cover plate 20 to the side of the adhesive layer 40c facing away from the flexible display panel 10; when the bonding layer group 40 includes the first adhesive layer 401, the base layer 403, and the second adhesive layer 402, bond the cover plate 20 to the side of the first adhesive layer 401 facing away from the flexible display panel 10.

[0192] The light-shielding layer 30 can be formed on the side of the cover plate 20 close to the flexible display panel 10. In this case, when preparing the cover plate 20, that is, before providing the cover plate 20, the light-shielding layer 30 can be formed on the side of the cover plate 20 that needs to be bonded to the bonding layer group 40 through processes such as coating and spin coating, that is, on the side of the cover plate 20 that needs to be attached to the flexible display panel 10.

[0193] The light-shielding layer 30 is located on the side of the cover plate 20 close to the flexible display panel 10, and at least one adhesive layer 40c of the adhesive layer group 40 is located on the side of the light-shielding layer 30 close to the flexible display panel 10; when the adhesive layer group 40 is one adhesive layer 40c, the adhesive layer 40c is located on the side of the light-shielding layer 30 close to the flexible display panel 10; when the adhesive layer group 40 includes a first adhesive layer 401, a base layer 403, and a second adhesive layer 402, it can be that the second adhesive layer 402 is located on the side of the light-shielding layer 30 close to the flexible display panel 10, or it can be that both the second adhesive layer 402 and the first adhesive layer 401 are located on the side of the light-shielding layer 30 close to the flexible display panel 10.

[0194] Of course, in some other exemplary embodiments of the present disclosure, two light-shielding layers 30 may be provided. The two light-shielding layers 30 are a first light-shielding layer 30a and a second light-shielding layer 30b. The first light-shielding layer 30a is disposed on the side of the cover plate 20 close to the flexible display panel 10, and the second light-shielding layer 30b is the light-shielding layer 30 included in the base layer 403. The specific preparation methods of the two light-shielding layers 30 will not be elaborated here.

[0195] Then, the adhesive layer group 40 is cured. Specifically, the adhesive layer group 40 is cured by irradiating the adhesive layer group 40 with ultraviolet light on the side of the cover plate 20 facing away from the flexible display panel 10. The part of the adhesive layer group 40 that is not cured due to being blocked by the light-shielding layer 30 forms a protection part 40a, so that the orthographic projection of the protection part 40a on the cover plate 20 is located within the orthographic projection of the light-shielding layer 30 on the cover plate 20.

[0196] Finally, the bending part 10211 is bent into a curved structure. Specifically, the bending part 10211 is bent so that the bonding part 1022 is located on the non-display side of the display part 101, and the second support layer 80 is attached to the filling spacer layer 90; the bending part 10211 has a bending start line 10211L, and the protection part 40a covers the bending start line 10211L.

[0197] The protection part 40a is not cured because it is blocked by the light-shielding layer 30. When the bending part 10211 is bent, the pulling force generated by the protection part 40a on the bending part 10211 is small, avoiding the defect of tearing of the bending part 10211 due to a large pulling force, and also avoiding the defect of open circuit of the wiring inside the bending part 10211 due to a large pulling force; on the other hand, the position of the bending start line 10211L can be more accurately controlled through the light-shielding layer 30, which is beneficial to the consistency of the preparation process of the display module, and can also control the bending start line 10211L of the bending part 10211 to be closer to the display part 101, thereby reducing the width of the non-display area NAA of the flexible display panel 10, and thus reducing the width of the non-display area NAA, which is beneficial to the narrow border setting.

[0198] Optionally, the preparation method may further include: after bending the bent portion 10211 into a curved structure, a bent filling portion 70 is formed in the accommodation space of the bent portion 10211 close to the display area AA through a die casting process or a printing process. Specifically, before bending the bent portion 10211, a filling adhesive may be printed on the side of the bent portion 10211 facing away from the cover plate 20. After the bent portion 10211 is bent, the filling adhesive forms the bent filling portion 70 and is located in the accommodation space of the bent portion 10211 close to the display area AA. Of course, the filling adhesive may also be coated.

[0199] Optionally, the preparation method may further include: after bending the bent portion 10211 into a curved structure, an edge filling portion 60 is formed on the side of the bent portion 10211 and the adhesive layer group 40 away from the display area AA through a die casting process or a printing process. Specifically, after bending the bent portion 10211, the display module is placed in a mold, and then a filling adhesive is injected on the side of the bent portion 10211 and the adhesive layer group 40 away from the display area AA. After the filling adhesive is cured, the edge filling portion 60 is formed. Of course, it is also possible to form the edge filling portion 60 through a 3D printing process after bending the bent portion 10211.

[0200] In addition, in the case where both the bent filling portion 70 and the edge filling portion 60 are present, after bending the bent portion 10211, the display module may be placed in a mold, and then a filling adhesive is injected on the side of the bent portion 10211 and the adhesive layer group 40 away from the display area AA and in the accommodation space of the bent portion 10211 close to the display area AA. After the filling adhesive is cured, the edge filling portion 60 and the bent filling portion 70 are formed.

[0201] Optionally, in some exemplary embodiments of the present disclosure, the protection portion 40a may not be cured all the time. Of course, in some other exemplary embodiments of the present disclosure, after the assembly of the display module is completed, a curing process may be performed on the protection portion 40a. For example, the protection portion 40a may be irradiated from the side with ultraviolet light to cure the protection portion 40a.

[0202] It should be noted that although the steps of the preparation method of the display module in the present disclosure are described in a specific order in the drawings, this does not require or imply that these steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired result. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step for execution, and / or one step may be decomposed into multiple steps for execution, etc.

[0203] Based on the same inventive concept, exemplary embodiments of the present disclosure provide a display device, which may include the display module described in any one of the above. The specific structure of the display module has been described in detail above, and thus will not be elaborated herein again.

[0204] Referring to Figure 21 As shown, the edge portion of the display module is bent, so that the display module can be used in a curved display device.

[0205] The specific type of the display device is not particularly limited, and any common display device types in the art are acceptable. Specifically, for example, mobile devices such as mobile phones, wearable devices such as watches, VR devices, etc. Those skilled in the art can make corresponding selections according to the specific use of the display device, which will not be elaborated herein again.

[0206] It should be noted that, in addition to the display module, the display device also includes other necessary components and compositions. Taking a display as an example, specifically, for example, a housing, a circuit board, a power cord, etc. Those skilled in the art can make corresponding supplements according to the specific use requirements of the display device, which will not be elaborated herein again.

[0207] Compared with the prior art, the beneficial effects of the display device provided by the exemplary embodiments of the present utility model are the same as those of the display module provided by the above exemplary embodiments, and will not be elaborated herein.

[0208] After considering the specification and practicing the disclosed utility model herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

Claims

1. A display module having a display area and a non-display area, characterized in that, The display module includes: A flexible display panel, including a display portion and a non-display portion. The non-display portion includes a bending portion which is bent into a curved structure, and the bending portion has a starting bend line; A cover plate disposed on the display side of the flexible display panel; A light-shielding layer disposed in the non-display area; An adhesive layer group bonded between the flexible display panel and the cover plate, and at least one adhesive layer of the adhesive layer group is located on the side of the light-shielding layer close to the flexible display panel. The adhesive layer group includes a protection portion, and the orthographic projection of the protection portion on the cover plate is located within the orthographic projection of the light-shielding layer on the cover plate, and the protection portion covers the starting bend line.

2. The display module according to claim 1, wherein The adhesive layer group further includes a curing portion connected to the protection portion, and the storage modulus of the curing portion is greater than the storage modulus of the protection portion.

3. The display module according to claim 2, wherein The difference between the storage modulus of the curing portion and the storage modulus of the protection portion is greater than or equal to 30 kPa.

4. The display module according to claim 1, wherein The display module further includes: A first support layer disposed on the non-display side of the flexible display panel, and the first support layer extends from the display area to the non-display area; Wherein, the orthographic projection of the first support layer on the cover plate overlaps with the orthographic projection of the light-shielding layer on the cover plate, and the starting bend line is located on the side of the end face of the first support layer close to the bending portion facing away from the display area, or the starting bend line and the end face of the first support layer close to the bending portion are located in the same plane; Or, the orthographic projection of the first support layer on the cover plate does not overlap with the orthographic projection of the light-shielding layer on the cover plate, and the protection portion covers the starting bend line.

5. The display module according to claim 4, wherein The light-shielding layer is disposed on the side of the cover plate close to the flexible display panel.

6. The display module according to claim 5, wherein The adhesive layer group is provided as a single-layer structure, or the adhesive layer group includes: A base layer; A first adhesive layer bonded between the base layer and the cover plate; A second adhesive layer bonded between the base layer and the flexible display panel; Wherein, the protection portion includes a first protection portion and a second protection portion, the first protection portion is included in the first adhesive layer, the second protection portion is included in the second adhesive layer, and the orthographic projection of the second protection portion on the cover plate is located within the orthographic projection of the first protection portion on the cover plate.

7. The display module according to claim 4, wherein The adhesive layer group includes: A base layer, including a light-transmitting portion and a light-shielding portion, the light-shielding portion is located in the non-display area, and the light-shielding portion is the light-shielding layer; A first adhesive layer bonded between the base layer and the cover plate; A second adhesive layer bonded between the base layer and the flexible display panel; Wherein, the protection portion is included in the second adhesive layer.

8. The display module according to claim 4, wherein The adhesive layer group includes: A base layer, including a light-transmitting portion and a light-shielding portion, the light-shielding portion is located in the non-display area; A first adhesive layer bonded between the base layer and the cover plate; A second adhesive layer bonded between the base layer and the flexible display panel; Wherein, the light-shielding layer is provided in two layers, namely the first light-shielding layer and the second light-shielding layer. The first light-shielding layer is disposed on the side of the cover plate close to the flexible display panel, and the light-shielding portion is the second light-shielding layer; the protection portion includes a first protection portion and a second protection portion. The first protection portion is included in the first adhesive layer, and the second protection portion is included in the second adhesive layer.

9. The display module according to claim 8, wherein The orthographic projection of the first light-shielding layer on the cover plate overlaps with the orthographic projection of the second light-shielding layer on the cover plate, and the second light-shielding layer is closer to the display area relative to the first light-shielding layer. The orthographic projection of the first protection portion on the cover plate is located within the orthographic projection of the second protection portion on the cover plate, and the orthographic projection of the bending line on the cover plate is located within the orthographic projection of the second light-shielding layer on the cover plate.

10. The display module according to any one of claims 1 to 9, characterized in that, The display module further includes: An edge filling portion, which is disposed in the non-display area and is located on the side of the bending portion and the adhesive layer group away from the display area.

11. The display module according to any one of claims 1 to 9, characterized in that, The display module further includes: A bending filling portion, which fills the accommodation space of the bending portion close to the display area.

12. The display module according to claim 1, wherein The flexible display panel includes: A driving substrate, which includes a thinning portion. The thinning portion includes the bending portion. The thinning portion includes a first organic layer, a plurality of first connection traces, and a second organic layer which are sequentially stacked. The first connection traces are completely wrapped by the first organic layer and the second organic layer. The first connection traces extend at least from the side of the bending portion close to the display area to the bending portion and extend from the bending portion to the side of the bending portion away from the display area.

13. The display module according to claim 12, characterized in that, The bending portion further includes: A protective layer, which is disposed on the side of the second organic layer facing away from the first connection traces.

14. The display module according to claim 12, wherein The thinning portion further includes: A third organic layer; Second connection traces, which are connected in parallel with the first connection traces; the second connection traces are completely wrapped by the first organic layer and the third organic layer, or the second connection traces are completely wrapped by the second organic layer and the third organic layer.

15. The display module according to any one of claims 12 to 14, characterized in that The thinning portion is provided with a groove, and the groove has a groove bottom wall and a groove side wall; the first organic layer includes a first sub-organic layer and a second sub-organic layer. The first sub-organic layer covers the groove bottom wall, and the second sub-organic layer covers the groove side wall.

16. The display module according to claim 14, wherein The bending portion further includes: A protective layer, which is disposed on the side of the second organic layer or the third organic layer facing away from the first connection traces.

17. A display device, characterized in that, Including: A display module, which is the display module according to any one of claims 1 to 16.

18. The display device according to claim 17, wherein The edge portion of the display module is bent.

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