Display module and display device

Abstract

The display module comprises a display panel and a supporting structure located on the back side of the display panel. The supporting structure comprises a supporting layer, a first bonding layer and an optical plug; a first opening is formed in the supporting layer; the first end of the light plug is embedded in the first opening, the second end of the light plug is located on the side, away from the display panel, of the supporting layer, and the orthographic projection of the second end of the light plug on the supporting layer and the orthographic projection of the first end on the supporting layer are at least partially overlapped; the first bonding layer is located between the supporting layer and the second end of the light plug, and the orthographic projection of the first bonding layer and the second end of the light plug on the supporting layer is at least partially overlapped with the supporting layer; the first bonding layer is respectively connected with the supporting layer and the second end of the optical plug; a first gap is formed between the supporting layer and the first end of the optical plug; a second gap is formed between the first bonding layer and the first end of the optical plug; the first gap is communicated with the second gap; a second opening is formed in the first bonding layer; the second opening is disposed so as to penetrate the second gap to the outside of the first adhesive layer.

Description

Technical Field

[0001] The embodiments of the present disclosure belong to the field of display technology, and particularly relate to a display module and a display device. Background Art

[0002] OLED (Organic Light-Emitting Diode) displays have attracted widespread attention due to their advantages such as self-luminescence, low power consumption, lightness, flexibility, brilliant colors, high contrast, and fast response rate. Utility Model Content

[0003] In a first aspect, an embodiment of the present disclosure provides a display module, comprising a display panel,

[0004] a supporting structure, located on the back side of the display panel;

[0005] The support structure includes a support layer, a first bonding layer and an optical plug;

[0006] A first opening is formed in the support layer;

[0007] The first end of the light plug is embedded in the first opening, the second end of the light plug is located on a side of the supporting layer facing away from the display panel, and an orthographic projection of the second end of the light plug on the supporting layer at least partially overlaps with an orthographic projection of the first end on the supporting layer;

[0008] The first bonding layer is located between the support layer and the second end of the light plug, and orthographic projections of the first bonding layer and the second end of the light plug on the support layer at least partially overlap with the support layer;

[0009] The first adhesive layer is connected to the support layer and the second end of the optical plug respectively;

[0010] A first gap is defined between the support layer and the first end of the optical plug; a second gap is defined between the first adhesive layer and the first end of the optical plug; and the first gap and the second gap are interconnected.

[0011] A second opening is formed in the first adhesive layer; the second opening is configured to allow the second gap to communicate with the outside of the first adhesive layer.

[0012] In some embodiments, the support structure further comprises a protective layer,

[0013] The protective layer is located on a side of the light plug away from the supporting layer, and a third gap is formed between the protective layer and the light plug;

[0014] The third gap is connected to the second opening and the second gap;

[0015] A third opening is formed in the protective layer, and the third opening is communicated with the third gap and the outside of the protective layer.

[0016] In some embodiments, an end of the third opening close to the light plug position corresponds to the second opening position.

[0017] In some embodiments, the orthographic projection of the first adhesive layer on the support layer is closed around the periphery of the first opening.

[0018] The second opening passes through a side wall of the first adhesive layer.

[0019] In some embodiments, the orthographic projection of the first adhesive layer on the supporting layer surrounds the periphery of the first opening, and the first adhesive layer is disconnected at the position of the second opening.

[0020] In some embodiments, the number of the second opening is one or more.

[0021] In some embodiments, the third opening is a first groove formed on a side of the protective layer close to the supporting layer.

[0022] The first groove extends from the third gap to the edge end surface of the protection layer.

[0023] In some embodiments, the third opening is a through hole opened in the protective layer.

[0024] The through hole extends from the third gap to the edge end surface of the protection layer.

[0025] In some embodiments, the number of the third opening is one or more.

[0026] In some embodiments, a distance between an end surface of the first end close to the display panel and the display panel is greater than a distance between a side surface of the supporting layer close to the display panel and the display panel.

[0027] In some embodiments, the support layer has a bending region;

[0028] The display module further includes an ink layer located between the support layer and the protective layer, and an orthographic projection of the ink layer on the support layer at least partially overlaps with the bending area;

[0029] The portion where the orthographic projections of the protective layer and the ink layer on the display panel overlap is in contact with the ink layer, and the portion where the orthographic projections of the protective layer and the ink layer on the display panel do not overlap is in contact with the support layer;

[0030] A thickness of a portion of the protective layer where an orthographic projection of the ink layer overlaps with that of the ink layer on the display panel is smaller than a thickness of a portion of the protective layer where an orthographic projection of the ink layer does not overlap with that of the ink layer on the display panel.

[0031] In some embodiments, in the overlapping portion of the orthographic projections of the protective layer and the ink layer on the display panel, the sum of the thicknesses of the protective layer and the ink layer is equal to the thickness of the protective layer in the non-overlapping portion of the orthographic projections of the protective layer and the ink layer on the display panel.

[0032] In some embodiments, the support layer further has a bending axis region, and the bending regions are located on opposite sides of the bending axis region along the bending direction;

[0033] A plurality of second grooves are formed on a side of the support layer facing away from the display panel, and the plurality of second grooves are located in the bending area;

[0034] The length direction of the second groove is along the extension direction of the bending axis area;

[0035] Adjacent second grooves are spaced apart from each other.

[0036] In some embodiments, the bending axis region of the support layer does not overlap with the ink layer;

[0037] A plurality of fourth openings are provided in the bending axis region of the support layer, and the plurality of fourth openings are evenly spaced.

[0038] In some embodiments, the bending region of the support layer corresponds to the bending region of the display panel and the two overlap;

[0039] The bending axis region of the support layer corresponds to the bending axis region of the display panel and the two overlap;

[0040] The orthographic projections of the bending axis region and the bending region of the supporting layer on the display panel are at least partially located in the display area of ​​the display panel.

[0041] In some embodiments, the orthographic projection of the bending axis region of the supporting layer on the display panel covers a center line of the display panel in the length direction or a center line in the width direction.

[0042] In some embodiments, a flexible circuit board is further included, which is located on a side of the support layer away from the display panel.

[0043] One end of the flexible circuit board is bound and electrically connected to the display panel, and the other end is bound and electrically connected to the peripheral circuit board;

[0044] The flexible circuit board includes a second adhesive layer, a substrate and an electrical component, wherein the electrical component is located on a side of the substrate away from the support layer, and the second adhesive layer is located on a side of the substrate close to the support layer;

[0045] The orthographic projections of the second adhesive layer and the electrical component on the substrate do not overlap.

[0046] In some embodiments, a fifth opening is provided in the second adhesive layer.

[0047] The orthographic projection of the fifth opening on the substrate covers the orthographic projection of the electrical component on the substrate;

[0048] The fifth opening is spaced a set distance from the orthographic projection of the electrical component on the substrate.

[0049] In some embodiments, a protective structure is further included, located on the display side of the display panel;

[0050] The protective structure includes a first film layer, a third adhesive layer, and a second film layer, wherein the first film layer, the third adhesive layer, and the second film layer are stacked in sequence away from the display panel;

[0051] The orthographic projection of the first film layer on the display panel covers the display area of ​​the display panel, the orthographic projections of the third adhesive layer and the second film layer on the display panel cover the orthographic projection of the first film layer on the display panel, and the orthographic projection area of ​​the third adhesive layer and the second film layer on the display panel is larger than the orthographic projection area of ​​the first film layer on the display panel;

[0052] The protective structure has a bending axis region;

[0053] The protection structure further includes a fourth adhesive layer located on the same layer as the first film layer, and the fourth adhesive layer is located on two opposite side edges of the first film layer corresponding to the bending axis region.

[0054] In some embodiments, the protective structure further includes a fifth adhesive layer located between the first film layer and the display panel.

[0055] The orthographic projection of the fifth adhesive layer on the display panel covers the orthographic projection of the first film layer on the display panel, and the orthographic projection area of ​​the fifth adhesive layer on the display panel is larger than the orthographic projection area of ​​the first film layer on the display panel;

[0056] The fourth adhesive layer covers the edge end surfaces on both sides of the first film layer corresponding to the bending axis area, and the fourth adhesive layer is respectively adhered to the third adhesive layer and the fifth adhesive layer.

[0057] In some embodiments, the orthographic projections of the fifth adhesive layer, the third adhesive layer, and the second film layer on the display panel cover the orthographic projection of the fourth adhesive layer on the display panel;

[0058] The fifth adhesive layer, the third adhesive layer and the second film layer cover the display side surface of the display panel.

[0059] In some embodiments, the material of the fourth adhesive layer includes an insulating transparent adhesive material or a transparent adhesive material containing a conductive component.

[0060] In some embodiments, the bending axis region of the protection structure corresponds to the bending axis region of the display panel and the two overlap;

[0061] The orthographic projection of the bending axis region of the protection structure on the display panel is at least partially located in the display area of ​​the display panel.

[0062] In some embodiments, the orthographic projection of the bending axis region of the protection structure on the display panel covers a center line of the display panel in the length direction or a center line in the width direction.

[0063] In some embodiments, the orthographic projection of the second end of the light plug on the supporting layer covers the first opening and overlaps with the peripheral area of ​​the supporting layer surrounding the first opening, and the orthographic projection of the first adhesive layer on the supporting layer is located within the overlapping area of ​​the orthographic projection of the second end of the light plug and the supporting layer.

[0064] In a second aspect, an embodiment of the present disclosure provides a display module, comprising a display panel,

[0065] a supporting structure, located on the back side of the display panel;

[0066] The support structure includes a support layer, a first adhesive layer and a protective layer;

[0067] The support layer has a bending axis area and bending areas sequentially arranged on both sides of the bending axis area;

[0068] The display module further includes an ink layer located between the support layer and the protective layer, and an orthographic projection of the ink layer on the support layer at least partially overlaps with the bending area;

[0069] The portion where the orthographic projections of the protective layer and the ink layer on the display panel overlap is in contact with the ink layer, and the portion where the orthographic projections of the protective layer and the ink layer on the display panel do not overlap is in contact with the support layer;

[0070] A thickness of a portion of the protective layer where an orthographic projection of the ink layer overlaps with that of the ink layer on the display panel is smaller than a thickness of a portion of the protective layer where an orthographic projection of the ink layer does not overlap with that of the ink layer on the display panel.

[0071] In some embodiments, the support structure further comprises an optical plug, and a first opening is formed in the support layer;

[0072] The first end of the light plug is embedded in the first opening, the second end of the light plug is located on a side of the supporting layer facing away from the display panel, and the orthographic projection of the second end of the light plug on the supporting layer covers the first opening and overlaps with a peripheral area of ​​the supporting layer surrounding the first opening;

[0073] The first bonding layer is located between the support layer and the second end of the light plug, and an orthographic projection of the first bonding layer on the support layer is located within an overlapping region of the orthographic projection of the second end of the light plug and the support layer;

[0074] The first adhesive layer is connected to the support layer and the second end of the optical plug respectively;

[0075] A first gap is defined between the support layer and the first end of the optical plug; a second gap is defined between the first adhesive layer and the first end of the optical plug; and the first gap and the second gap are interconnected.

[0076] A second opening is formed in the first bonding layer; the second opening is connected to the second gap and the outside of the first bonding layer;

[0077] The protection layer is located on a side of the light plug facing away from the support layer.

[0078] In a third aspect, the present disclosure further provides a display module, which includes a display panel,

[0079] a supporting structure, located on the back side of the display panel;

[0080] The display module further includes a protection structure located on the display side of the display panel;

[0081] The protective structure includes a first film layer, a third adhesive layer, and a second film layer, wherein the first film layer, the third adhesive layer, and the second film layer are stacked in sequence away from the display panel;

[0082] The orthographic projection of the first film layer on the display panel covers the display area of ​​the display panel, the orthographic projections of the third adhesive layer and the second film layer on the display panel cover the orthographic projection of the first film layer on the display panel, and the orthographic projection area of ​​the third adhesive layer and the second film layer on the display panel is larger than the orthographic projection area of ​​the first film layer on the display panel;

[0083] The protective structure has a bending axis region;

[0084] The protective structure further includes a fourth adhesive layer located on the same layer as the first film layer. The fourth adhesive layer is located on two opposite side edges of the first film layer corresponding to the bending axis region.

[0085] In a fourth aspect, the present disclosure further provides a display module, comprising a display panel,

[0086] a supporting structure, located on the back side of the display panel;

[0087] The support structure includes a support layer, a first bonding layer and an optical plug;

[0088] The display module further includes a flexible circuit board located on a side of the support layer away from the display panel.

[0089] One end of the flexible circuit board is bound and electrically connected to the display panel, and the other end is bound and electrically connected to the peripheral circuit board;

[0090] The flexible circuit board includes a second adhesive layer, a substrate and an electrical component, wherein the electrical component is located on a side of the substrate away from the support layer, and the second adhesive layer is located on a side of the substrate close to the support layer;

[0091] The orthographic projections of the second adhesive layer and the electrical component on the substrate do not overlap.

[0092] In a fifth aspect, an embodiment of the present disclosure provides a display device, which includes the above-mentioned display module.

[0093] In some embodiments, a middle frame is further included, which is located on a side of the ink layer in the display module that is away from the display panel.

[0094] The area of ​​the middle frame overlapping with the ink layer is bonded to the ink layer;

[0095] At least a portion of the middle frame that does not overlap with the ink layer is bonded to the support layer in the display module.

[0096] In some embodiments, the fourth adhesive layer in the display module contacts and is connected to the middle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0097] The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing the detailed exemplary embodiments with reference to the accompanying drawings, in which:

[0098] Figure 1a The figure is a top view schematic diagram of a display module in the related art viewed from the display side.

[0099] Figure 1b For the Figure 1a Structural section view of the AA' section line.

[0100] Figure 1c This is a schematic top view of a display module viewed from the back side in the related art.

[0101] Figure 1d For the Figure 1c Structural cross-sectional view of the BB' section line.

[0102] Figure 1e This is another top view schematic diagram of a display module viewed from the back side in the related art.

[0103] Figure 1f For the Figure 1e Structural section view of CC' section line.

[0104] Figure 1g This is a schematic top view of the side of the flexible circuit board in the display module of the related art facing away from the display panel.

[0105] Figure 1h This is a schematic top view of the side of the flexible circuit board close to the display panel in the related art display module.

[0106] Figure 2a Schematic diagram of a top view of the back side of a display module in an embodiment of the present disclosure.

[0107] Figure 2b for Figure 2a Schematic top view of the center light plug position.

[0108] Figure 2c For the Figure 2b Structural cross-sectional view of the DD' section line.

[0109] Figure 2d FIG. 1 is a schematic top view of the back side of another display module in an embodiment of the present disclosure.

[0110] Figure 2e for Figure 2d Top view of the center light plug location.

[0111] Figure 2f For the Figure 2e Structural cross-sectional view of the EE' section line.

[0112] Figure 3a This is a top view of the back side of another display module in an embodiment of the present disclosure.

[0113] Figure 3b For the Figure 3a Structural cross-sectional view of the FF' section line.

[0114] Figure 4a FIG. 4 is a schematic top view of the back side of another display module in an embodiment of the present disclosure.

[0115] Figure 4b for Figure 4a A schematic top view of the side of the flexible circuit board close to the display panel in the display module.

[0116] Figure 4c For the Figure 4a Structural cross-sectional view of the GG' section line.

[0117] Figure 5a Schematic top view of the display side of a display module in an embodiment of the present disclosure.

[0118] Figure 5b For the Figure 5a Structural cross-sectional view along the HH' section line. DETAILED DESCRIPTION

[0119] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, a display module and a display device provided by the embodiments of the present disclosure are further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0120] The embodiments of the present disclosure will be described more fully below with reference to the accompanying drawings, but the illustrated embodiments may be embodied in different 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 enable those skilled in the art to understand the scope of this disclosure.

[0121] The embodiments of the present disclosure are not limited to the embodiments shown in the drawings, but include modifications of the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the drawings are schematic in nature, and the shapes of the regions shown in the drawings illustrate specific shapes of the regions, but are not intended to be limiting.

[0122] With the iteration of electronic products, the market has higher and higher requirements for display devices. Folding machines (such as OLED display devices) are developing towards becoming thinner and lighter with smaller bending radius. However, the ultimate craftsmanship means that the appearance of the product cannot be compared with conventional designs, and the reliability of the product will also be worse than that of conventional design solutions. For example, the product's bending performance cannot compete with conventional design solutions.

[0123] In the related art, the folding display module has many problems due to the thinning of the stack, such as the bending bubble problem of the folding screen; Figure 1a and Figure 1b , Figure 1a This is a schematic top view of a display module in the related art as viewed from the display side; Figure 1b For the Figure 1a Structural cross-sectional view along the AA' section line; the foldable display module includes a flexible display panel 1 and a protective structure covering the display side of the display panel 1, the protective structure including a first transparent film layer 56 and a second transparent film layer 57, the first transparent film layer 56 and the second transparent film layer 57 are adhered by an optically transparent adhesive (OCA) 50, and the first transparent film layer 56 and the display panel 1 are adhered by an optically transparent adhesive (OCA) 50; the first transparent film layer 56 only covers the display area 100 of the display panel 1, and the second transparent film layer 57 covers the entire display side surface of the display panel 1. The bending axis region 102 of the foldable display module covers the horizontal centerline Q of the display area 100. Since the foldable display module is significantly thinner overall, the edge bending performance of the bending axis region 102 is reduced. Specifically, as the number of bends increases, bubbles will gradually spread from the edge of the first transparent film layer 56 in the bending axis region 102 through the contact interface between the first transparent film layer 56 and the upper and lower optical transparent adhesives 50 to the display area 100, resulting in bubble defects in the foldable display module.

[0124] Another example: the mold printing problem of the ink area corresponding to the display side of the display module; refer to Figure 1c and Figure 1d , Figure 1c A schematic top view of a display module viewed from the back side in the related art; Figure 1d For the Figure 1cStructural cross-sectional view along the BB' section line; the folding display module also includes a support structure arranged on the back side of the flexible display panel 1, and the support structure includes a support layer 20. In order to improve the bending performance of the support layer 20 in the bending areas 101 on both sides of the bending axis area 102, a blind groove (i.e., the depth of the groove is less than the thickness of the support layer) R is provided in the bending area 101 on the side of the support layer 20 facing away from the display panel 1. When the folding display module is assembled, a middle frame (not shown in the figure) is provided on the back side to support and protect the entire display module. The middle frame and the blind groove R area of ​​the support layer 20 are directly connected by adhesive. The bonding between the middle frame and the blind groove R area of ​​the support layer 20 is not very strong. In order to improve the bonding strength of the blind groove R area of ​​the middle frame and the support layer 20, ink 6 is provided in the blind groove R area of ​​the support layer 20 facing away from the display panel 1. The ink 6 is more firmly connected to the middle frame by adhesive. The thickness of the ink 6 is about 5 μm. After the ink 6 is introduced into the bending area 101, the surface height of the ink 6 in the spacing area between the blind grooves R of the support layer 20 is higher than the surface height of other areas of the support layer 20. The peeling film 7 is attached to the side of the ink 6 facing away from the display panel 1. In the process of applying the support layer 20 to the back side of the display panel 1 by roller pressing, the position of the ink 6 on the support layer 20 will be subjected to greater pressure, resulting in poor molding at the position of the corresponding ink area on the display side of the display module.

[0125] Another example: the problem of trapped air imprint at the light plug position; Figure 1e and Figure 1f , Figure 1e Another schematic top view of a display module viewed from the back side in the related art; Figure 1f For the Figure 1eStructural sectional view along the CC' section line; a light plug 22 is provided in the supporting structure of the display module, the light plug 22 passes through the supporting layer 20, and the light plug 22 and the supporting layer 20 are fixedly connected by the light plug adhesive 8, the peeling film 7 is located on the side of the light plug 22 away from the display panel 1, and the peeling film 7 covers the light plug 22 and the supporting layer 20; the light plug 22 plays a supporting and light-transmitting role in the display module; the end of the light plug 22 away from the display panel 1 is directed to the light sensor (not shown in the figure) provided on the middle frame of the whole machine, and the end of the light plug 22 close to the display panel 1 is directed to the back side of the display panel 1, the external ambient light and the display light of the display panel 1 can be transmitted to the light sensor through the light plug 22, thereby realizing that the display module adjusts its display brightness according to the external ambient light. In the related art, since the thickness of the light plug 22 has a tolerance and the entire support structure is subjected to a certain pressure during the process of being attached to the back side of the display panel 1, the light plug 22 is relatively far away from the back side of the display panel 1 relative to the support layer 20, which results in a gap between the light plug 22 and the support layer 20 in a direction perpendicular to the back side of the display panel 1; for example, there is a gap T1 between the end of the light plug 22 close to the display panel 1 and the support layer 20, and there is a gap T2 between the end of the light plug 22 away from the display panel 1 and the support layer 20; the light plug adhesive 8 forms a closed loop design around the light plug 22, and there is a gap T3 between the light plug adhesive 8 and the light plug 22; the peeling film 7 covers the light plug 22 at the position of the light plug 22 to form a closed design, and there is also a gap T4 between the peeling film 7 and the light plug 22. During the process of attaching the entire support structure to the back side of the display panel 1, the application pressure during the rapid application process will cause a "gas trapping" problem (i.e., gas is trapped in the gap position) at the above-mentioned gap positions, thereby causing a bulge mold imprint at the light plug 22 position of the display module.

[0126] Another example is the extrusion mold problem at the flexible circuit board (FPC) position; due to the overall thinning of the display module, the display module is easily deformed during the overall pressing process. The display module also includes a flexible circuit board, which is bound and electrically connected to the display panel and then bent to the back side of the display panel, and is bound and electrically connected to the peripheral circuit board located on the back side of the display panel. Figure 1g and Figure 1h , Figure 1g This is a schematic top view of the side of the flexible circuit board in the display module of the related art facing away from the display panel; Figure 1hThe present invention is a top view of the side of a flexible circuit board (FPC) in a display module according to the related art, near the display panel. The FPC 4 includes a flexible substrate 40 and an electrical component 42 disposed on one side of the substrate 40. During the process of bending the FPC 4 to the back side of the display panel 1, a bending jig clamps the FPC 4 and bends it to the back side of the display panel 1, and the substrate 40 of the FPC 4 is bonded to the support layer 20 via adhesive 9. To prevent damage to the electrical component 42 during the bending process, the bending jig avoids contact with the electrical component 42. Therefore, after the substrate 40 of the FPC 4 is bonded to the support layer 20, the adhesive 9 at the position corresponding to the electrical component 42 is in a "near-adhesive" state with the support layer 20. During normal use, when the display side surface of the display module is pressed, substantial adhesion occurs between the adhesive 9 at the position corresponding to the electrical component 42 and the support layer 20, causing the display module to sag at the position corresponding to the electrical component 42, resulting in an extrusion impression in the form of a "pit" on the display side of the display module.

[0127] In order to solve the above problems in the related art, in the first aspect, the embodiment of the present disclosure provides a display module, referring to Figure 2a-2f , Figure 2a is a schematic top view of the back side of a display module according to an embodiment of the present disclosure; Figure 2b for Figure 2a A top view of the center light plug position; Figure 2c For the Figure 2b Structural section view of the DD' section line; Figure 2d is a schematic top view of the back side of another display module according to an embodiment of the present disclosure;

[0128] Figure 2e for Figure 2d Top view of the center light plug position; Figure 2f For the Figure 2eEE' section line structural sectional view; wherein, the display module includes a display panel 1, a support structure 2, located on the back side of the display panel 1; the support structure 2 includes a support layer 20, a first adhesive layer 21 and an optical plug 22, and a first opening 201 is opened in the support layer 20; the first end A of the optical plug 22 is embedded in the first opening 201, and the second end B of the optical plug 22 is located on the side of the support layer 20 away from the display panel 1, and the orthographic projection of the second end B of the optical plug 22 on the support layer 20 at least partially overlaps with the orthographic projection of the first end A on the support layer 20; the first adhesive layer 21 is located on the support layer 20 and the second end B of the light plug 22, and the orthographic projections of the first bonding layer 21 and the second end B of the light plug 22 on the supporting layer 20 at least partially overlap with the supporting layer 20; the first bonding layer 21 is connected to the supporting layer 20 and the second end B of the light plug 22 respectively; a first gap C is defined between the supporting layer 20 and the first end A of the light plug 22; a second gap D is defined between the first bonding layer 21 and the first end A of the light plug 22; the first gap C and the second gap D are connected; a second opening 210 is defined in the first bonding layer 21; the second opening 210 is connected to the second gap D and the outside of the first bonding layer 21.

[0129] In this embodiment, the second opening 210 is configured to connect the second gap D with the outside of the first adhesive layer 21. The orthographic projection of the first adhesive layer 21 on the support layer 20 surrounds the light plug 22. At least one second opening 210 is defined in the first adhesive layer 21, forming an exhaust channel outside the second gap D, the second opening 210, and the first adhesive layer 21. The exhaust channel is not limited to a straight line and can be of any shape.

[0130] The light plug 22 is made of a light-transmitting material. It allows ambient light and display light on the display side of the display panel 1 to be transmitted from its first end A to its second end B. A light sensor is located at the second end B of the light plug 22. The light sensor receives both ambient light and display light, thereby controlling the display module to adjust its display brightness based on the ambient light.

[0131] In this embodiment, by opening a second opening 210 in the first adhesive layer 21, the second gap D and the outside of the first adhesive layer 21 can be connected, so that the first gap C, the second gap D and the outside can form a gas flow channel, and then in the process of applying the support structure 2 to the back side of the display panel 1, the "air trapping" problem caused by the rapid application pressure at the positions of the first gap C and the second gap D is improved or avoided, and finally the bulge imprint of the display module at the position corresponding to the light plug 22 is improved or avoided.

[0132] In some embodiments, the orthographic projection of the second end B of the light plug 22 on the supporting layer 20 covers the first opening 201 and overlaps with the peripheral area of ​​the supporting layer 20 surrounding the first opening 201; the orthographic projection of the first adhesive layer 21 on the supporting layer 20 is located in the overlapping area of ​​the orthographic projection of the second end B of the light plug 22 and the supporting layer 20.

[0133] In some embodiments, the cross-sectional shape of the light plug 22 perpendicular to the display panel 1 may be T-shaped or I-shaped, or may be other shapes.

[0134] In some embodiments, the support structure 2 also includes a protective layer 23, which is located on the side of the light plug 22 facing away from the support layer 20, and there is a third gap E between the protective layer 23 and the light plug 22; the third gap E is connected with the second opening 210 and the second gap D; a third opening 230 is opened in the protective layer 23, and the third opening 230 is connected with the third gap E and the outside of the protective layer 23.

[0135] Among them, the setting of the third opening 230 in the protective layer 23 can enable the third gap E to be connected with the outside world through the third opening 230, so that the first gap C, the second gap D, the third gap E and the outside world can form a gas flow channel, and then in the process of applying the support structure 2 to the back side of the display panel 1, the "trapped air" problem caused by the rapid application pressure is improved or avoided at the positions of the first gap C, the second gap D and the third gap E, and finally the bulge imprint of the display module at the position corresponding to the light plug 22 is improved or avoided.

[0136] In some embodiments, the protection layer 23 may include multiple sub-layers, which are stacked in sequence. The third gap E may be an opening in the sub-layer close to the light plug 22 .

[0137] In some embodiments, reference Figure 2a 、 Figure 2b 、 Figure 2c 、 Figure 2d 、 Figure 2e and Figure 2f The opening F at one end of the third opening 230, which is near the light plug 22, corresponds to the position of the second opening 210. That is, the opening F at one end of the third opening 230, which is near the light plug 22, directly mates with the second opening 210. This arrangement creates a more direct and shorter gas flow channel between the first gap C, the second gap D, and the third gap E and the outside world. This further improves or avoids the problem of "air trapping" caused by the application pressure during rapid application at the first gap C, the second gap D, and the third gap E during application of the support structure 2 to the back side of the display panel 1.

[0138] In some embodiments, reference Figure 2d 、 Figure 2e and Figure 2fThe orthographic projection of the first adhesive layer 21 on the support layer 20 surrounds the periphery of the first opening 201, and the second opening 210 extends through one sidewall of the first adhesive layer 21. This ensures a secure bond between the first adhesive layer 21 and the light plug 22 and the support layer 20, preventing the light plug 22 from shifting during transportation or shaking of the display module, thereby ensuring the accuracy of the light sensor's detection of ambient light. Furthermore, it creates a more direct and shorter gas flow path between the first gap C, the second gap D, and the third gap E and the outside world.

[0139] In some embodiments, reference Figure 2a 、 Figure 2b and Figure 2c The orthographic projection of the first adhesive layer 21 on the support layer 20 surrounds the periphery of the first opening 201, and the first adhesive layer 21 is disconnected at the location of the second opening 210. In other words, in this embodiment, the second opening 210 is formed by disconnecting the first adhesive layer 21. This also ensures that the first adhesive layer 21 firmly bonds the light plug 22 and the support layer 20, while also creating more direct and shorter gas flow channels between the first gap C, the second gap D, and the third gap E and the outside world.

[0140] In some embodiments, the number of the second opening 210 is one or more.

[0141] In some embodiments, the first adhesive layer 21 is made of an optically clear adhesive, such as OCA (Optically Clear Adhesive) or OCR (Optical Clear Resin). The support layer 20 is made of at least one of titanium alloy, stainless steel (SUS), graphene, copper, and fiber materials (such as carbon fiber composite, metal fiber composite, etc.).

[0142] In some embodiments, reference Figure 2a 、 Figure 2b and Figure 2c The third opening 230 is a first groove G opened on a side of the protective layer 23 close to the support layer 20 . The first groove G extends from the third gap E to the edge surface of the protective layer 23 .

[0143] In some embodiments, reference Figure 2d 、 Figure 2e and Figure 2f The third opening 230 is a through hole H opened in the protective layer 23 , and the through hole H extends from the third gap E to the edge surface of the protective layer 23 .

[0144] In some embodiments, the number of the third opening 230 is one or more.

[0145] In some embodiments, a distance s1 between the end surface of the first end A close to the display panel 1 and the display panel 1 is greater than a distance s2 between a surface of the support layer 20 close to the display panel 1 and the display panel 1. This configuration prevents the light plug 22 from being squeezed and damaged by the application pressure during application of the support structure 2 to the back side of the display panel 1.

[0146] In some embodiments, the orthographic projection of the light plug 22 on the display panel 1 is located in the display area 100 of the display panel 1 .

[0147] In some embodiments, reference Figure 3a and Figure 3b , Figure 3a This is a top view of the back side of another display module in an embodiment of the present disclosure; Figure 3b For the Figure 3a Structural cross-sectional view along the FF' section line; the supporting layer 20 has a bending area 101; the display module also includes an ink layer 3, located between the supporting layer 20 and the protective layer 23, and the orthographic projection of the ink layer 3 on the supporting layer 20 at least partially overlaps with the bending area 101; the portion of the protective layer 23 that overlaps with the orthographic projection of the ink layer 3 on the display panel 1 is in contact with the ink layer 3, and the portion of the protective layer 23 that does not overlap with the orthographic projection of the ink layer 3 on the display panel 1 is in contact with the supporting layer 20; the thickness h1 of the portion of the protective layer 23 that overlaps with the orthographic projection of the ink layer 3 on the display panel 1 is less than the thickness h2 of the portion of the protective layer 23 that does not overlap with the orthographic projection of the ink layer 3 on the display panel 1.

[0148] In this embodiment, the orthographic projection of the ink layer 3 on the supporting layer 20 covers the bending area 101 .

[0149] The ink layer 3 is bonded to the middle frame, which is subsequently disposed on the side of the ink layer 3 facing away from the display panel 1, via adhesive. The portion of the middle frame corresponding to the bending region 101 bends as the bending region 101 bends. During the bending process of the bending region 101, the middle frame assists in bending and provides support for the bending region 101 of the support layer 20. Providing the ink layer 3 on the side of the support layer 20 facing away from the display panel 1 enhances the bond strength between the bending region 101 of the support layer 20 and the middle frame. This prevents the middle frame from separating from the support layer 20 during the bending process of the bending region 101, thereby ensuring that the middle frame assists in bending and provides support for the bending region 101 of the support layer 20.

[0150] By making the thickness h1 of the portion where the protective layer 23 overlaps with the orthographic projection of the ink layer 3 on the display panel 1 smaller than the thickness h2 of the portion where the protective layer 23 does not overlap with the orthographic projection of the ink layer 3 on the display panel 1, the surface height difference between the area where the ink layer 3 is set and the area where the ink layer 3 is not set on the side of the support layer 20 facing away from the display panel 1 can be reduced or eliminated, thereby improving or avoiding the problem of greater pressure on the area where the ink layer 3 is set during the process of the support layer 20 being pressed and applied to the back side of the display panel 1 by a roller, thereby improving or avoiding poor printing on the display side of the display module at the position corresponding to the ink layer 3.

[0151] In some embodiments, in the overlapping portion of the orthographic projections of the protective layer 23 and the ink layer 3 on the display panel 1, the sum of the thicknesses of the protective layer 23 and the ink layer 3 is equal to the thickness of the protective layer in the non-overlapping portion of the orthographic projections of the protective layer 23 and the ink layer 3 on the display panel 1, that is, the protective layer 23 extends toward the ink layer 3 to fill the previous step difference, so that the protective layer 23 completely covers the side of the ink layer 3.

[0152] Such a setting can completely eliminate the surface height difference between the ink layer 3 setting area and the ink layer 3 non-setting area of ​​the support layer 20 on the side facing away from the display panel 1, thereby completely avoiding the problem of greater pressure on the ink layer 3 setting area during the process of the support layer 20 being pressed and applied to the back side of the display panel 1 by a roller, thereby avoiding poor molding at the position corresponding to the ink layer 3 on the display side of the display module.

[0153] In some embodiments, reference Figure 3a The support layer 20 also has a bending axis area 102, and the bending areas 101 are located on opposite sides of the bending axis area 102 along the bending direction; a plurality of second grooves 202 are opened on the side of the support layer 20 away from the display panel 1, and the plurality of second grooves 202 are located in the bending area 101; the length direction of the second grooves 202 is along the extension direction of the bending axis area 102; adjacent second grooves 202 are spaced apart from each other.

[0154] Specifically, a plurality of second grooves 202 are provided in the bending region 101 of the support layer 20 , which can improve the bending performance of the bending region 101 of the support layer 20 .

[0155] In some embodiments, reference Figure 3a The bending axis region 102 of the support layer 20 does not overlap with the ink layer 3. A plurality of fourth openings 203 are formed in the bending axis region 102 of the support layer 20, and the plurality of fourth openings 203 are evenly spaced. The provision of the fourth openings 203 in the bending axis region 102 of the support layer 20 enhances the bending performance of the bending axis region 102, thereby preventing the bending axis region 102 from being damaged during frequent bending.

[0156] In some embodiments, the shape of the fourth opening 203 can be any shape such as circular, elliptical, rectangular, etc.

[0157] In some embodiments, a plurality of fourth openings 203 are provided in the bending axis region 102 of the support layer 20, and the plurality of fourth openings 203 are unevenly spaced. For example, the spacing between the fourth openings 203 may gradually increase or first decrease and then increase from the bending region 101 toward the direction away from the bending axis region 102.

[0158] In some embodiments, the bending zone 101 of the supporting layer 20 corresponds to the bending zone of the display panel 1 and the two overlap; the bending axis zone 102 of the supporting layer 20 corresponds to the bending axis zone of the display panel 1 and the two overlap; the orthographic projections of the bending axis zone 102 and the bending zone 101 of the supporting layer 20 on the display panel 1 are at least partially located in the display area 100 of the display panel 1.

[0159] In some embodiments, reference Figure 3a The orthographic projection of the bending axis region 102 of the support layer 20 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1. It should be noted that the orthographic projection of the bending axis region 102 of the support layer 20 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1, and a certain deviation or error within the allowable range of the module process can be allowed.

[0160] In some embodiments, reference Figure 4a 、 Figure 4b and Figure 4c , Figure 4a is a schematic top view of the back side of another display module in an embodiment of the present disclosure; Figure 4b for Figure 4a A schematic top view of a side of a flexible circuit board in a display module close to a display panel; Figure 4c For the Figure 4a Structural cross-sectional view along the GG' section line; the display module also includes a flexible circuit board 4, which is located on the side of the support layer 20 away from the display panel 1, one end of the flexible circuit board 4 is bound and electrically connected to the display panel 1, and the other end is bound and electrically connected to a peripheral circuit board (not shown in the figure); the flexible circuit board 4 includes a second adhesive layer 41, a substrate 40 and an electrical component 42, the electrical component 42 is located on the side of the substrate 40 away from the support layer 20, and the second adhesive layer 41 is located on the side of the substrate 40 close to the support layer 20; the orthographic projections of the second adhesive layer 41 and the electrical component 42 on the substrate 40 do not overlap.

[0161] By ensuring that the orthographic projections of the second adhesive layer 41 and the electrical component 42 on the substrate 40 do not overlap, after the flexible circuit board 4 is bent to the back side of the display panel 1, because the second adhesive layer 41 is not provided between the substrate 40 at the position of the electrical component 42 and the support layer 20, there is no "sticky but not sticky" state between the substrate 40 at the position of the electrical component 42 and the support layer 20. Therefore, when the display side surface of the display module is pressed during normal use, the display module will not be recessed at the position corresponding to the electrical component 42, thereby avoiding the appearance of an extrusion mold imprint in a "pit" state on the display side of the display module.

[0162] In some embodiments, a fifth opening 410 is opened in the second adhesive layer 41 , and the orthographic projection of the fifth opening 410 on the substrate 40 covers the orthographic projection of the electrical component 42 on the substrate 40 ; a set distance x is separated between the fifth opening 410 and the orthographic projection of the electrical component 42 on the substrate 40 .

[0163] Among them, the set distance x is consistent with the avoidance distance of the bending jig at the position of the electrical component 42. On the one hand, it can avoid the bending jig from damaging the electrical component 42 when the bending jig clamps the flexible circuit board 4 and bends it to the back side of the display panel 1. On the other hand, the bending jig can enable the second adhesive layer 41 to firmly bond the flexible circuit board 4 and the support layer 20.

[0164] In some embodiments, the second adhesive layer 41 is made of adhesive.

[0165] In some embodiments, reference Figure 5a and Figure 5b , Figure 5a Schematic diagram of a top view of the display side of a display module in an embodiment of the present disclosure; Figure 5b For the Figure 5a Structural cross-sectional view of the HH' section line; the display module also includes a protective structure 5, which is located on the display side of the display panel 1; the protective structure 5 includes a first film layer 51, a third adhesive layer 52 and a second film layer 53, and the first film layer 51, the third adhesive layer 52 and the second film layer 53 are stacked in sequence away from the display panel 1; the orthographic projection of the first film layer 51 on the display panel 1 covers the display area 100 of the display panel 1, and the orthographic projection area of ​​the third adhesive layer 52 and the second film layer 53 on the display panel 1 covers the orthographic projection of the first film layer 51 on the display panel 1, and the orthographic projection area of ​​the third adhesive layer 52 and the second film layer 53 on the display panel 1 is larger than the orthographic projection area of ​​the first film layer 51 on the display panel 1; the protective structure 5 has a bending axis area 102; the protective structure 5 also includes a fourth adhesive layer 54, which is located on the same layer as the first film layer 51, and the fourth adhesive layer 54 is located at the opposite side edges of the corresponding bending axis area 102 of the first film layer 51.

[0166] In this embodiment, by arranging a fourth adhesive layer 54 which is the same layer as the first film layer 51 at the opposite side edges of the corresponding bending axis area 102 of the first film layer 51, bubbles generated at the opposite side edges of the first film layer 51 located in the bending axis area 102 during the frequent bending process can be at least partially blocked from spreading from the contact interface between the first film layer 51, the third adhesive layer 52 and the display panel 1 to the display area of ​​the display panel 1, thereby improving or avoiding the occurrence of bubble defects in the display module.

[0167] In some embodiments, the protective structure 5 also includes a fifth adhesive layer 55, which is located between the first film layer 51 and the display panel 1, and the orthographic projection of the fifth adhesive layer 55 on the display panel 1 covers the orthographic projection of the first film layer 51 on the display panel 1, and the orthographic projection area of ​​the fifth adhesive layer 55 on the display panel 1 is larger than the orthographic projection area of ​​the first film layer 51 on the display panel 1; the fourth adhesive layer 54 covers the edge end surfaces on both sides of the corresponding bending axis area 102 of the first film layer 51, and the fourth adhesive layer 54 is respectively adhered to the third adhesive layer 52 and the fifth adhesive layer 55.

[0168] The fifth adhesive layer 55 can connect the display panel 1 and the first film layer 51 together by adhesion.

[0169] In this embodiment, by making the fourth adhesive layer 54 cover the edge end surfaces on both sides of the corresponding bending axis area 102 of the first film layer 51, and the fourth adhesive layer 54 is respectively adhered to the third adhesive layer 52 and the fifth adhesive layer 55, there will be no gap between the edges on both sides of the first film layer 51 located in the bending axis area 102 and the fourth adhesive layer 54, the third adhesive layer 52 and the fifth adhesive layer 55, thereby completely avoiding the generation of bubbles at the edges on both sides of the first film layer 51 located in the bending axis area 102 during frequent bending, and further completely avoiding the occurrence of bubble defects in the display module.

[0170] In some embodiments, the orthographic projections of the fifth adhesive layer 55, the third adhesive layer 52 and the second film layer 53 on the display panel 1 cover the orthographic projections of the fourth adhesive layer 54 on the display panel 1; the fifth adhesive layer 55, the third adhesive layer 52 and the second film layer 53 cover the display side surface of the display panel 1.

[0171] In some embodiments, the fourth adhesive layer 54 includes an insulating transparent adhesive material or a transparent adhesive material containing a conductive component.

[0172] In some embodiments, the third bonding layer 52 , the fourth bonding layer 54 , and the fifth bonding layer 55 are all made of transparent optical adhesive material.

[0173] In some embodiments, the third bonding layer 52 and the fifth bonding layer 55 are both made of transparent optical adhesive material, and the fourth bonding layer 54 is made of transparent optical adhesive material containing conductive components.

[0174] In some embodiments, the bending axis region 102 of the protective structure 5 corresponds to the bending axis region of the display panel 1 and the two overlap; the orthographic projection of the bending axis region 102 of the protective structure 5 on the display panel 1 is at least partially located in the display area 100 of the display panel 1.

[0175] In some embodiments, the orthographic projection of the bending axis region 102 of the protective structure 5 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1. It should be noted that the orthographic projection of the bending axis region 102 of the protective structure 5 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1, and a certain deviation or error within the allowable range of the module process can be allowed.

[0176] In some embodiments, the first film layer 51 is made of ultra-thin flexible glass, and the second film layer 53 is made of polyimide or polyethylene terephthalate.

[0177] The display module provided in this embodiment can make the second gap D and the outside of the first adhesive layer 21 pass through by opening the second opening 210 in the first adhesive layer 21, so that the first gap C, the second gap D and the outside can form a gas flow channel, and then in the process of applying the support structure 2 to the back side of the display panel 1, the "air trapping" problem caused by the rapid application pressure at the positions of the first gap C and the second gap D is improved or avoided, and finally the bulge imprint of the display module at the position corresponding to the light plug 22 is improved or avoided.

[0178] The present disclosure also provides a display module, referring to Figure 2a-2f 、 Figure 3a and Figure 3b , which includes a display panel 1 and a support structure 2 located on the back side of the display panel 1; the support structure 2 includes a support layer 20, a first adhesive layer 21 and a protective layer 23, the support layer 20 has a bending axis area 102 and bending areas 101 sequentially arranged on both sides of the bending axis area 102; the display module also includes an ink layer 3, located between the support layer 20 and the protective layer 23, and the orthographic projection of the ink layer 3 on the support layer 20 at least partially overlaps with the bending area 101; the portion of the protective layer 23 that overlaps with the orthographic projection of the ink layer 3 on the display panel 1 contacts the ink layer 3, and the portion of the protective layer 23 that does not overlap with the orthographic projection of the ink layer 3 on the display panel 1 contacts the support layer 20; the thickness h1 of the portion of the protective layer 23 that overlaps with the orthographic projection of the ink layer 3 on the display panel 1 is less than the thickness h2 of the portion of the protective layer 23 that does not overlap with the orthographic projection of the ink layer 3 on the display panel 1

[0179] The display module provided in this embodiment can reduce or eliminate the surface height difference between the ink layer 3 setting area and the ink layer 3 non-setting area on the side of the support layer 20 facing away from the display panel 1 by making the thickness h1 of the portion where the protective layer 23 and the orthographic projection of the ink layer 3 on the display panel 1 overlap smaller than the thickness h2 of the portion where the protective layer 23 and the orthographic projection of the ink layer 3 on the display panel 1 do not overlap, thereby improving or avoiding the problem of greater pressure on the ink layer 3 setting area during the process of the support layer 20 being pressed and applied to the back side of the display panel 1 by a roller, and further improving or avoiding poor molding on the display side of the display module at the position corresponding to the ink layer 3.

[0180] In some embodiments, the support structure 2 further includes an optical plug 22, and a first opening 201 is opened in the support layer 20; a first end A of the optical plug 22 is embedded in the first opening 201, and a second end B of the optical plug 22 is located on the side of the support layer 20 facing away from the display panel 1, and the orthographic projection of the second end B of the optical plug 22 on the support layer 20 covers the first opening 201 and overlaps with the peripheral area of ​​the support layer 20 surrounding the first opening 201; a first adhesive layer 21 is located between the support layer 20 and the second end B of the optical plug 22, and the orthographic projection of the first adhesive layer 21 on the support layer 20 Located in the overlapping area of ​​the second end B of the light plug 22 and the orthographic projection of the support layer 20; the first adhesive layer 21 is connected to the support layer 20 and the second end B of the light plug 22 respectively; there is a first gap C between the support layer 20 and the first end A of the light plug 22; there is a second gap D between the first adhesive layer 21 and the first end A of the light plug 22; the first gap C and the second gap D are connected; a second opening 210 is opened in the first adhesive layer 21; the second opening 210 is connected to the second gap D and the outside of the first adhesive layer 21; the protective layer 23 is located on the side of the light plug 22 away from the support layer 20.

[0181] Among them, by opening a second opening 210 in the first adhesive layer 21, the second gap D and the outside of the first adhesive layer 21 can be connected, so that the first gap C, the second gap D and the outside can form a gas flow channel, and then in the process of applying the support structure 2 to the back side of the display panel 1, the "air trapping" problem caused by the rapid application pressure at the positions of the first gap C and the second gap D is improved or avoided, and finally the bulge imprint of the display module at the position corresponding to the light plug 22 is improved or avoided.

[0182] In some embodiments, in the overlapping portion of the orthographic projections of the protective layer 23 and the ink layer 3 on the display panel 1, the sum of the thicknesses of the protective layer 23 and the ink layer 3 is equal to the thickness of the protective layer in the non-overlapping portion of the orthographic projections of the protective layer 23 and the ink layer 3 on the display panel 1, that is, the protective layer 23 extends toward the ink layer 3 to fill the previous step difference, so that the protective layer 23 completely covers the side of the ink layer 3.

[0183] Such a setting can completely eliminate the surface height difference between the ink layer 3 setting area and the ink layer 3 non-setting area of ​​the support layer 20 on the side facing away from the display panel 1, thereby completely avoiding the problem of greater pressure on the ink layer 3 setting area during the process of the support layer 20 being pressed and applied to the back side of the display panel 1 by a roller, thereby avoiding poor molding at the position corresponding to the ink layer 3 on the display side of the display module.

[0184] In some embodiments, reference Figure 3a A plurality of second grooves 202 are provided on the side of the support layer 20 facing away from the display panel 1 , and the plurality of second grooves 202 are located in the bending area 101 ; the length direction of the second grooves 202 is along the extension direction of the bending axis area 102 ; adjacent second grooves 202 are spaced apart from each other.

[0185] Specifically, a plurality of second grooves 202 are provided in the bending region 101 of the support layer 20 , which can improve the bending performance of the bending region 101 of the support layer 20 .

[0186] In some embodiments, reference Figure 3a The bending axis region 102 of the support layer 20 does not overlap with the ink layer 3. A plurality of fourth openings 203 are formed in the bending axis region 102 of the support layer 20, and the plurality of fourth openings 203 are evenly spaced. The provision of the fourth openings 203 in the bending axis region 102 of the support layer 20 enhances the bending performance of the bending axis region 102, thereby preventing the bending axis region 102 from being damaged during frequent bending.

[0187] In some embodiments, the shape of the fourth opening 203 can be any shape such as circular, elliptical, rectangular, etc.

[0188] In some embodiments, a plurality of fourth openings 203 are provided in the bending axis region 102 of the support layer 20, and the plurality of fourth openings 203 are unevenly spaced. For example, the spacing between the fourth openings 203 may gradually increase or first decrease and then increase from the bending region 101 toward the direction away from the bending axis region 102.

[0189] In some embodiments, the bending zone 101 of the supporting layer 20 corresponds to the bending zone of the display panel 1 and the two overlap; the bending axis zone 102 of the supporting layer 20 corresponds to the bending axis zone of the display panel 1 and the two overlap; the orthographic projections of the bending axis zone 102 and the bending zone 101 of the supporting layer 20 on the display panel 1 are at least partially located in the display area 100 of the display panel 1.

[0190] In some embodiments, reference Figure 3aThe orthographic projection of the bending axis region 102 of the support layer 20 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1. It should be noted that the orthographic projection of the bending axis region 102 of the support layer 20 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1, and a certain deviation or error within the allowable range of the module process can be allowed.

[0191] The present disclosure also provides a display module, referring to Figure 2a-2f 、 Figure 5a and Figure 5b , which includes a display panel 1 and a support structure 2, which is located on the back side of the display panel 1; the display module also includes a protective structure 5, which is located on the display side of the display panel 1; the protective structure 5 includes a first film layer 51, a third adhesive layer 52 and a second film layer 53, and the first film layer 51, the third adhesive layer 52 and the second film layer 53 are stacked in sequence away from the display panel 1; the orthographic projection of the first film layer 51 on the display panel 1 covers the display area 100 of the display panel 1, and the orthographic projection area of ​​the third adhesive layer 52 and the second film layer 53 on the display panel 1 covers the orthographic projection of the first film layer 51 on the display panel 1, and the orthographic projection area of ​​the third adhesive layer 52 and the second film layer 53 on the display panel 1 is larger than the orthographic projection area of ​​the first film layer 51 on the display panel 1; the protective structure 5 has a bending axis area 102; the protective structure 5 also includes a fourth adhesive layer 54, which is located on the same layer as the first film layer 51, and the fourth adhesive layer 54 is located on the opposite side edges of the corresponding bending axis area 102 of the first film layer 51.

[0192] Among them, by arranging the fourth adhesive layer 54 of the same layer as the first film layer 51 at the opposite side edges of the corresponding bending axis area 102 of the first film layer 51, it can at least partially block the bubbles generated at the opposite side edges of the first film layer 51 located in the bending axis area 102 during the frequent bending process from spreading from the contact interface between the first film layer 51, the third adhesive layer 52 and the display panel 1 to the display area of ​​the display panel 1, thereby improving or avoiding the bubble defect of the display module.

[0193] In some embodiments, the support structure 2 includes a support layer 20, a first adhesive layer 21, and an optical plug 22. The support layer 20 is provided with a first opening 201. The first end A of the optical plug 22 is embedded in the first opening 201, and the second end B of the optical plug 22 is located on the side of the support layer 20 facing away from the display panel 1. The orthographic projection of the second end B of the optical plug 22 on the support layer 20 covers the first opening 201 and overlaps with the peripheral area of ​​the support layer 20 surrounding the first opening 201. The first adhesive layer 21 is located between the support layer 20 and the second end B of the optical plug 22, and The orthographic projection of the first adhesive layer 21 on the supporting layer 20 is located in the overlapping area of ​​the second end B of the light plug 22 and the orthographic projection of the supporting layer 20; the first adhesive layer 21 is connected to the supporting layer 20 and the second end B of the light plug 22 respectively; there is a first gap C between the supporting layer 20 and the first end A of the light plug 22; there is a second gap D between the first adhesive layer 21 and the first end A of the light plug 22; the first gap C and the second gap D are connected; a second opening 210 is opened in the first adhesive layer 21; the second opening 210 is connected to the second gap D and the outside of the first adhesive layer 21.

[0194] Among them, by opening a second opening 210 in the first adhesive layer 21, the second gap D and the outside of the first adhesive layer 21 can be connected, so that the first gap C, the second gap D and the outside can form a gas flow channel, and then in the process of applying the support structure 2 to the back side of the display panel 1, the "air trapping" problem caused by the rapid application pressure at the positions of the first gap C and the second gap D is improved or avoided, and finally the bulge imprint of the display module at the position corresponding to the light plug 22 is improved or avoided.

[0195] In some embodiments, the protective structure 5 also includes a fifth adhesive layer 55, which is located between the first film layer 51 and the display panel 1, and the orthographic projection of the fifth adhesive layer 55 on the display panel 1 covers the orthographic projection of the first film layer 51 on the display panel 1, and the orthographic projection area of ​​the fifth adhesive layer 55 on the display panel 1 is larger than the orthographic projection area of ​​the first film layer 51 on the display panel 1; the fourth adhesive layer 54 covers the edge end surfaces on both sides of the corresponding bending axis area 102 of the first film layer 51, and the fourth adhesive layer 54 is respectively adhered to the third adhesive layer 52 and the fifth adhesive layer 55.

[0196] The fifth adhesive layer 55 can connect the display panel 1 and the first film layer 51 together by adhesion.

[0197] In this embodiment, by making the fourth adhesive layer 54 cover the edge end surfaces on both sides of the corresponding bending axis area 102 of the first film layer 51, and the fourth adhesive layer 54 is respectively adhered to the third adhesive layer 52 and the fifth adhesive layer 55, there will be no gap between the edges on both sides of the first film layer 51 located in the bending axis area 102 and the fourth adhesive layer 54, the third adhesive layer 52 and the fifth adhesive layer 55, thereby completely avoiding the generation of bubbles at the edges on both sides of the first film layer 51 located in the bending axis area 102 during frequent bending, and further completely avoiding the occurrence of bubble defects in the display module.

[0198] In some embodiments, the orthographic projections of the fifth adhesive layer 55, the third adhesive layer 52 and the second film layer 53 on the display panel 1 cover the orthographic projections of the fourth adhesive layer 54 on the display panel 1; the fifth adhesive layer 55, the third adhesive layer 52 and the second film layer 53 cover the display side surface of the display panel 1.

[0199] In some embodiments, the fourth adhesive layer 54 includes an insulating transparent adhesive material or a transparent adhesive material containing a conductive component.

[0200] In some embodiments, the third bonding layer 52 , the fourth bonding layer 54 , and the fifth bonding layer 55 are all made of transparent optical adhesive material.

[0201] In some embodiments, the third bonding layer 52 and the fifth bonding layer 55 are both made of transparent optical adhesive material, and the fourth bonding layer 54 is made of transparent optical adhesive material containing conductive components.

[0202] In some embodiments, the bending axis region 102 of the protective structure 5 corresponds to the bending axis region of the display panel 1 and the two overlap; the orthographic projection of the bending axis region 102 of the protective structure 5 on the display panel 1 is at least partially located in the display area 100 of the display panel 1.

[0203] In some embodiments, the orthographic projection of the bending axis region 102 of the protective structure 5 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1. It should be noted that the orthographic projection of the bending axis region 102 of the protective structure 5 on the display panel 1 covers the center line P in the length direction or the center line in the width direction of the display panel 1, and a certain deviation or error within the allowable range of the module process can be allowed.

[0204] In some embodiments, the first film layer 51 is made of ultra-thin flexible glass, and the second film layer 53 is made of polyimide or polyethylene terephthalate.

[0205] Based on the above structure of the display module, this embodiment further provides a method for preparing the display module, including: Step S01: preparing a display panel.

[0206] Step S02: preparing a support structure.

[0207] In this step, preparing the support structure includes preparing a support layer, a first bonding layer and an optical plug.

[0208] Step S03: attaching the support structure to the back side of the display panel.

[0209] Step S04: preparing a protective structure.

[0210] In this step, preparing the protective structure includes preparing a first film layer, a third adhesive layer and a second film layer. Preparing the protective structure also includes preparing a fourth adhesive layer by inkjet printing or rolling application.

[0211] Step S05: attaching the protection structure to the display side of the display panel.

[0212] The display module provided in this embodiment can at least partially block the bubbles generated at the opposite side edges of the first film layer 51 located in the bending axis area 102 during frequent bending from spreading from the contact interface between the first film layer 51, the third adhesive layer 52 and the display panel 1 to the display area of ​​the display panel 1, thereby improving or avoiding the bubble defect in the display module.

[0213] The present disclosure also provides a display module, referring to Figure 2a-2f 、 Figure 4a 、 Figure 4b and Figure 4c , which includes a display panel 1, a support structure 2, located on the back side of the display panel 1; the support structure 2 includes a support layer 20, a first adhesive layer 21 and an optical plug 22, and the display module also includes a flexible circuit board 4, located on the side of the support layer 20 away from the display panel 1, one end of the flexible circuit board 4 is bound and electrically connected to the display panel 1, and the other end is bound and electrically connected to a peripheral circuit board (not shown in the figure); the flexible circuit board 4 includes a second adhesive layer 41, a substrate 40 and an electrical component 42, the electrical component 42 is located on the side of the substrate 40 away from the support layer 20, and the second adhesive layer 41 is located on the side of the substrate 40 close to the support layer 20; the orthographic projections of the second adhesive layer 41 and the electrical component 42 on the substrate 40 do not overlap.

[0214] The display module provided in this embodiment does not overlap the orthographic projections of the second adhesive layer 41 and the electrical component 42 on the substrate 40. After the flexible circuit board 4 is bent to the back side of the display panel 1, because the second adhesive layer 41 is not provided between the substrate 40 at the position of the electrical component 42 and the support layer 20, there is no "sticky but not sticky" state between the substrate 40 at the position of the electrical component 42 and the support layer 20. Therefore, when the display side surface of the display module is pressed during normal use, the display module will not be recessed at the position corresponding to the electrical component 42, thereby avoiding the appearance of an extrusion mold imprint in a "pit" state on the display side of the display module.

[0215] In some embodiments, a first opening 201 is provided in the supporting layer 20; the first end A of the light plug 22 is embedded in the first opening 201, the second end B of the light plug 22 is located on the side of the supporting layer 20 away from the display panel 1, and the orthographic projection of the second end B of the light plug 22 on the supporting layer 20 covers the first opening 201 and overlaps with the peripheral area of ​​the supporting layer 20 surrounding the first opening 201; the first adhesive layer 21 is located between the supporting layer 20 and the second end B of the light plug 22, and the orthographic projection of the first adhesive layer 21 on the supporting layer 20 is located in the overlapping area of ​​the second end B of the light plug 22 and the orthographic projection of the supporting layer 20; the first adhesive layer 21 is connected to the supporting layer 20 and the second end B of the light plug 22 respectively; a first gap C is provided between the supporting layer 20 and the first end A of the light plug 22; a second gap D is provided between the first adhesive layer 21 and the first end A of the light plug 22; the first gap C and the second gap D are connected; a second opening 210 is provided in the first adhesive layer 21; the second opening 210 is connected to the second gap D and the outside of the first adhesive layer 21.

[0216] Among them, by opening a second opening 210 in the first adhesive layer 21, the second gap D and the outside of the first adhesive layer 21 can be connected, so that the first gap C, the second gap D and the outside can form a gas flow channel, and then in the process of applying the support structure 2 to the back side of the display panel 1, the "air trapping" problem caused by the rapid application pressure at the positions of the first gap C and the second gap D is improved or avoided, and finally the bulge imprint of the display module at the position corresponding to the light plug 22 is improved or avoided.

[0217] In some embodiments, a fifth opening 410 is opened in the second adhesive layer 41 , and the orthographic projection of the fifth opening 410 on the substrate 40 covers the orthographic projection of the electrical component 42 on the substrate 40 ; a set distance x is separated between the fifth opening 410 and the orthographic projection of the electrical component 42 on the substrate 40 .

[0218] Among them, the set distance x is consistent with the avoidance distance of the bending jig at the position of the electrical component 42. On the one hand, it can avoid the bending jig from damaging the electrical component 42 when the bending jig clamps the flexible circuit board 4 and bends it to the back side of the display panel 1. On the other hand, the bending jig can enable the second adhesive layer 41 to firmly bond the flexible circuit board 4 and the support layer 20.

[0219] In some embodiments, the second adhesive layer 41 is made of adhesive.

[0220] The present disclosure also provides a display module, referring to Figure 2a-2f 、 Figure 3a and Figure 3b 、 Figure 4a 、 Figure 4b and Figure 4c as well as Figure 5a and Figure 5b , wherein the display module includes a display panel 1, a support structure 2, and is located on the back side of the display panel 1; the support structure 2 includes a support layer 20, a first adhesive layer 21, an optical plug 22, and a protective layer 23, and a first opening 201 is opened in the support layer 20; a first end A of the optical plug 22 is embedded in the first opening 201, and a second end B of the optical plug 22 is located on the side of the support layer 20 away from the display panel 1, and the orthographic projection of the second end B of the optical plug 22 on the support layer 20 covers the first opening 201 and overlaps with the peripheral area of ​​the support layer 20 surrounding the first opening 201; the first adhesive layer 21 is located on the support layer 20 and the second end B of the light plug 22, and the orthographic projection of the first adhesive layer 21 on the support layer 20 is located in the overlapping area of ​​the second end B of the light plug 22 and the orthographic projection of the support layer 20; the first adhesive layer 21 is connected to the support layer 20 and the second end B of the light plug 22 respectively; a first gap C is defined between the support layer 20 and the first end A of the light plug 22; a second gap D is defined between the first adhesive layer 21 and the first end A of the light plug 22; the first gap C and the second gap D are connected; a second opening 210 is defined in the first adhesive layer 21; the second opening 210 is connected to the second gap D and the outside of the first adhesive layer 21.

[0221] The supporting layer 20 has a bending area 101; the display module also includes an ink layer 3, which is located between the supporting layer 20 and the protective layer 23, and the orthographic projection of the ink layer 3 on the supporting layer 20 at least partially overlaps with the bending area 101; the portion of the protective layer 23 that overlaps with the orthographic projection of the ink layer 3 on the display panel 1 is in contact with the ink layer 3, and the portion of the protective layer 23 that does not overlap with the orthographic projection of the ink layer 3 on the display panel 1 is in contact with the supporting layer 20; the thickness h1 of the portion of the protective layer 23 that overlaps with the orthographic projection of the ink layer 3 on the display panel 1 is less than the thickness h2 of the portion of the protective layer 23 that does not overlap with the orthographic projection of the ink layer 3 on the display panel 1.

[0222] The display module also includes a flexible circuit board 4, which is located on the side of the support layer 20 away from the display panel 1. One end of the flexible circuit board 4 is bound and electrically connected to the display panel 1, and the other end is bound and electrically connected to a peripheral circuit board (not shown in the figure); the flexible circuit board 4 includes a second adhesive layer 41, a substrate 40 and an electrical component 42, the electrical component 42 is located on the side of the substrate 40 away from the support layer 20, and the second adhesive layer 41 is located on the side of the substrate 40 close to the support layer 20; the orthographic projections of the second adhesive layer 41 and the electrical component 42 on the substrate 40 do not overlap.

[0223] The display module also includes a protective structure 5, which is located on the display side of the display panel 1; the protective structure 5 includes a first film layer 51, a third adhesive layer 52 and a second film layer 53, and the first film layer 51, the third adhesive layer 52 and the second film layer 53 are stacked in sequence away from the display panel 1; the orthographic projection of the first film layer 51 on the display panel 1 covers the display area 100 of the display panel 1, and the orthographic projection area of ​​the third adhesive layer 52 and the second film layer 53 on the display panel 1 covers the orthographic projection of the first film layer 51 on the display panel 1, and the orthographic projection area of ​​the third adhesive layer 52 and the second film layer 53 on the display panel 1 is greater than the orthographic projection area of ​​the first film layer 51 on the display panel 1; the protective structure 5 has a bending axis area 102; the protective structure 5 also includes a fourth adhesive layer 54, which is located on the same layer as the first film layer 51, and the fourth adhesive layer 54 is located at the opposite side edges of the corresponding bending axis area 102 of the first film layer 51.

[0224] In a second aspect, an embodiment of the present disclosure further provides a display device, comprising the display module in any of the above embodiments.

[0225] In some embodiments, the display device further includes a middle frame, which is located on the side of the ink layer in the display module facing away from the display panel, and the area of ​​the middle frame overlapping with the ink layer is bonded to the ink layer; at least a portion of the area of ​​the middle frame that does not overlap with the ink layer is bonded to the support layer in the display module.

[0226] In some embodiments, the fourth adhesive layer in the display module contacts and is connected to the middle frame.

[0227] The display device provided in this embodiment can improve or avoid bulging, extrusion and bubble defects in the display device by adopting the display module in the above embodiment, thereby improving the quality of the display device.

[0228] The display device provided in the embodiments of the present disclosure may be any product or component with a display function, such as an OLED panel, an OLED TV, an OLED billboard, a display, a mobile phone, or a navigation system.

[0229] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A display module, wherein: Including display panel, a supporting structure, located on the back side of the display panel; The support structure includes a support layer, a first bonding layer and an optical plug; A first opening is formed in the support layer; The first end of the light plug is embedded in the first opening, the second end of the light plug is located on a side of the supporting layer facing away from the display panel, and an orthographic projection of the second end of the light plug on the supporting layer at least partially overlaps with an orthographic projection of the first end on the supporting layer; The first bonding layer is located between the support layer and the second end of the light plug, and orthographic projections of the first bonding layer and the second end of the light plug on the support layer at least partially overlap with the support layer; The first adhesive layer is connected to the support layer and the second end of the optical plug respectively; A first gap is defined between the support layer and the first end of the optical plug; a second gap is defined between the first adhesive layer and the first end of the optical plug; and the first gap and the second gap are interconnected. A second opening is formed in the first adhesive layer; the second opening is configured to allow the second gap to communicate with the outside of the first adhesive layer.

2. The display module according to claim 1, wherein: The support structure further comprises a protective layer, The protective layer is located on a side of the light plug away from the supporting layer, and a third gap is formed between the protective layer and the light plug; The third gap is connected to the second opening and the second gap; A third opening is formed in the protective layer, and the third opening is communicated with the third gap and the outside of the protective layer.

3. The display module according to claim 2, wherein: An end of the third opening close to the light plug corresponds to the position of the second opening.

4. The display module according to claim 1, wherein: The orthographic projection of the first adhesive layer on the supporting layer is closed around the periphery of the first opening. The second opening passes through a side wall of the first adhesive layer.

5. The display module according to claim 1, wherein: The orthographic projection of the first adhesive layer on the supporting layer surrounds the periphery of the first opening, and the first adhesive layer is disconnected at the position of the second opening.

6. The display module according to claim 4 or 5, wherein: The number of the second openings is one or more.

7. The display module according to claim 2, wherein: The third opening is a first groove opened on the side of the protective layer close to the support layer. The first groove extends from the third gap to the edge end surface of the protection layer.

8. The display module according to claim 2, wherein: The third opening is a through hole opened in the protective layer, The through hole extends from the third gap to the edge end surface of the protection layer.

9. The display module according to claim 7 or 8, wherein: The number of the third openings is one or more.

10. The display module according to claim 1, wherein: The distance between the end surface of the first end close to the display panel and the display panel is greater than the distance between the one side surface of the supporting layer close to the display panel and the display panel.

11. The display module according to claim 2, wherein: The support layer has a bending area; The display module further includes an ink layer located between the support layer and the protective layer, and an orthographic projection of the ink layer on the support layer at least partially overlaps with the bending area; The portion where the orthographic projections of the protective layer and the ink layer on the display panel overlap is in contact with the ink layer, and the portion where the orthographic projections of the protective layer and the ink layer on the display panel do not overlap is in contact with the support layer; A thickness of a portion of the protective layer where an orthographic projection of the ink layer overlaps with that of the ink layer on the display panel is smaller than a thickness of a portion of the protective layer where an orthographic projection of the ink layer does not overlap with that of the ink layer on the display panel.

12. The display module according to claim 11, wherein: In the overlapping portion of the orthographic projections of the protective layer and the ink layer on the display panel, the sum of the thicknesses of the protective layer and the ink layer is equal to the thickness of the protective layer in the non-overlapping portion of the orthographic projections of the protective layer and the ink layer on the display panel.

13. The display module according to claim 11, wherein: The support layer further comprises a bending axis region, wherein the bending regions are located on opposite sides of the bending axis region along the bending direction; A plurality of second grooves are formed on a side of the support layer facing away from the display panel, and the plurality of second grooves are located in the bending area; The length direction of the second groove is along the extension direction of the bending axis area; Adjacent second grooves are spaced apart from each other.

14. The display module according to claim 13, wherein: The bending axis region of the support layer does not overlap with the ink layer; A plurality of fourth openings are provided in the bending axis region of the support layer, and the plurality of fourth openings are evenly spaced.

15. The display module according to claim 13, wherein: The bending area of ​​the supporting layer corresponds to the bending area of ​​the display panel and the two overlap; The bending axis region of the support layer corresponds to the bending axis region of the display panel and the two overlap; The orthographic projections of the bending axis region and the bending region of the supporting layer on the display panel are at least partially located in the display area of ​​the display panel.

16. The display module according to claim 15, wherein: The orthographic projection of the bending axis region of the supporting layer on the display panel covers the center line of the display panel in the length direction or the center line in the width direction.

17. The display module according to claim 1, wherein: It also includes a flexible circuit board located on a side of the support layer away from the display panel. One end of the flexible circuit board is bound and electrically connected to the display panel, and the other end is bound and electrically connected to the peripheral circuit board; The flexible circuit board includes a second adhesive layer, a substrate and an electrical component, wherein the electrical component is located on a side of the substrate away from the support layer, and the second adhesive layer is located on a side of the substrate close to the support layer; The orthographic projections of the second adhesive layer and the electrical component on the substrate do not overlap.

18. The display module according to claim 17, wherein: A fifth opening is provided in the second adhesive layer. The orthographic projection of the fifth opening on the substrate covers the orthographic projection of the electrical component on the substrate; The fifth opening is spaced a set distance from the orthographic projection of the electrical component on the substrate.

19. The display module according to claim 1, wherein: Also included is a protection structure located on the display side of the display panel; The protective structure includes a first film layer, a third adhesive layer, and a second film layer, wherein the first film layer, the third adhesive layer, and the second film layer are stacked in sequence away from the display panel; The orthographic projection of the first film layer on the display panel covers the display area of ​​the display panel, the orthographic projections of the third adhesive layer and the second film layer on the display panel cover the orthographic projection of the first film layer on the display panel, and the orthographic projection area of ​​the third adhesive layer and the second film layer on the display panel is larger than the orthographic projection area of ​​the first film layer on the display panel; The protective structure has a bending axis region; The protection structure further includes a fourth adhesive layer located on the same layer as the first film layer, and the fourth adhesive layer is located on two opposite side edges of the first film layer corresponding to the bending axis region.

20. The display module according to claim 19, wherein: The protective structure further includes a fifth adhesive layer located between the first film layer and the display panel. The orthographic projection of the fifth adhesive layer on the display panel covers the orthographic projection of the first film layer on the display panel, and the orthographic projection area of ​​the fifth adhesive layer on the display panel is larger than the orthographic projection area of ​​the first film layer on the display panel; The fourth adhesive layer covers the edge end surfaces on both sides of the first film layer corresponding to the bending axis area, and the fourth adhesive layer is respectively adhered to the third adhesive layer and the fifth adhesive layer.

21. The display module according to claim 20, wherein: The orthographic projections of the fifth adhesive layer, the third adhesive layer, and the second film layer on the display panel cover the orthographic projection of the fourth adhesive layer on the display panel; The fifth adhesive layer, the third adhesive layer and the second film layer cover the display side surface of the display panel.

22. The display module according to claim 19, wherein: The material of the fourth adhesive layer includes an insulating transparent adhesive material or a transparent adhesive material containing a conductive component.

23. The display module according to claim 19, wherein: The bending axis region of the protection structure corresponds to the bending axis region of the display panel and the two overlap; The orthographic projection of the bending axis region of the protection structure on the display panel is at least partially located in the display area of ​​the display panel.

24. The display module according to claim 23, wherein: The orthographic projection of the bending axis region of the protection structure on the display panel covers the center line of the display panel in the length direction or the center line in the width direction.

25. The display module according to claim 1, wherein: The orthographic projection of the second end of the light plug on the supporting layer covers the first opening and overlaps with the peripheral area of ​​the supporting layer surrounding the first opening, and the orthographic projection of the first adhesive layer on the supporting layer is located in the overlapping area of ​​the orthographic projection of the second end of the light plug and the supporting layer.

26. A display module, wherein: Including display panel, a supporting structure, located on the back side of the display panel; The support structure includes a support layer, a first adhesive layer and a protective layer; The support layer has a bending axis area and bending areas sequentially arranged on both sides of the bending axis area; The display module further includes an ink layer located between the support layer and the protective layer, and an orthographic projection of the ink layer on the support layer at least partially overlaps with the bending area; The portion where the orthographic projections of the protective layer and the ink layer on the display panel overlap is in contact with the ink layer, and the portion where the orthographic projections of the protective layer and the ink layer on the display panel do not overlap is in contact with the support layer; A thickness of a portion of the protective layer where an orthographic projection of the ink layer overlaps with that of the ink layer on the display panel is smaller than a thickness of a portion of the protective layer where an orthographic projection of the ink layer does not overlap with that of the ink layer on the display panel.

27. The display module according to claim 26, wherein the support structure further comprises a light plug, and a first opening is formed in the support layer; The first end of the light plug is embedded in the first opening, the second end of the light plug is located on a side of the supporting layer facing away from the display panel, and the orthographic projection of the second end of the light plug on the supporting layer covers the first opening and overlaps with a peripheral area of ​​the supporting layer surrounding the first opening; The first bonding layer is located between the support layer and the second end of the light plug, and an orthographic projection of the first bonding layer on the support layer is located within an overlapping region between the second end of the light plug and the orthographic projection of the support layer; The first adhesive layer is connected to the support layer and the second end of the optical plug respectively; A first gap is defined between the support layer and the first end of the optical plug; a second gap is defined between the first adhesive layer and the first end of the optical plug; and the first gap and the second gap are interconnected. A second opening is formed in the first bonding layer; the second opening is connected to the second gap and the outside of the first bonding layer; The protection layer is located on a side of the light plug facing away from the support layer.

28. A display module, wherein: Including display panel, a supporting structure, located on the back side of the display panel; The display module further includes a protection structure located on the display side of the display panel; The protective structure includes a first film layer, a third adhesive layer, and a second film layer, wherein the first film layer, the third adhesive layer, and the second film layer are stacked in sequence away from the display panel; The orthographic projection of the first film layer on the display panel covers the display area of ​​the display panel, the orthographic projections of the third adhesive layer and the second film layer on the display panel cover the orthographic projection of the first film layer on the display panel, and the orthographic projection area of ​​the third adhesive layer and the second film layer on the display panel is larger than the orthographic projection area of ​​the first film layer on the display panel; The protective structure has a bending axis region; The protective structure further includes a fourth adhesive layer located on the same layer as the first film layer. The fourth adhesive layer is located on two opposite side edges of the first film layer corresponding to the bending axis region.

29. A display module, wherein: Including display panel, a supporting structure, located on the back side of the display panel; The support structure includes a support layer, a first bonding layer and an optical plug; The display module further includes a flexible circuit board located on a side of the support layer away from the display panel. One end of the flexible circuit board is bound and electrically connected to the display panel, and the other end is bound and electrically connected to the peripheral circuit board; The flexible circuit board includes a second adhesive layer, a substrate and an electrical component, wherein the electrical component is located on a side of the substrate away from the support layer, and the second adhesive layer is located on a side of the substrate close to the support layer; The orthographic projections of the second adhesive layer and the electrical component on the substrate do not overlap.

30. A display device, wherein: A display module comprising any one of claims 1-29.

31. The display device according to claim 30, wherein: It also includes a middle frame located on a side of the ink layer in the display module that is away from the display panel. The area of ​​the middle frame overlapping with the ink layer is bonded to the ink layer; At least a portion of the middle frame that does not overlap with the ink layer is bonded to the support layer in the display module.

32. The display device according to claim 31, wherein The fourth adhesive layer in the display module contacts and is connected to the middle frame.

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