Display panel, display panel attaching method, and display device

Abstract

This application relates to a display panel, a display panel bonding method, and a display device. The display panel includes: a screen body comprising a straight portion and a bent portion arranged and connected along a first direction; the bent portion comprising a straight area and a bent area, the straight area being located on the side of the bent area closer to the straight portion; the screen body having a first surface and a second surface disposed opposite to each other along its own thickness direction; a polarizer disposed on the first surface corresponding to the straight portion, the side of the polarizer near the bent portion along the first direction being a blocking surface, the blocking surface being parallel to the second direction; the angle between the first surface corresponding to the bent portion of the straight portion and the blocking surface being less than 90 degrees; a protective layer located on the first surface corresponding to the bent portion and in contact with the blocking surface; and an adhesive layer located on the side of the polarizer away from the screen body and a portion of the protective layer away from the screen body. In summary, the display panel in this embodiment, by setting the angle between the first surface corresponding to the bent portion of the straight portion and the blocking surface to be less than 90 degrees, can improve the yield rate of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel, a display panel bonding method, and a display device. Background Technology

[0002] With technological advancements, mobile phones are gradually becoming thinner and lighter. To manufacture thinner and lighter phones, it is necessary to reduce the thickness of the display panel, making the various film layers within the display template thinner. In related technologies, the thickness of the optical adhesive layer in the display panel is reduced to achieve this thinning.

[0003] However, when the thickness of the optically clear adhesive (OCA) layer decreases, the optically clear adhesive layer covering the side of the polarizer (POL) layer away from the screen cannot fill the step difference formed between the side of the bending protection layer (BPL) layer away from the screen and the side of the bending protection layer away from the screen.

[0004] In related technologies, gas voids are easily formed at the point where the polarizing layer is close to the optical adhesive layer and the bending protective adhesive layer is close to the polarizing layer. The gas in these gas voids will form bubbles and transfer between the cover plate and the optical adhesive layer during the process of pressing the cover plate onto the side of the optical adhesive layer away from the screen, resulting in poor appearance of the display panel. Summary of the Invention

[0005] Therefore, it is necessary to address the current problems of poor appearance of display panels and the easy formation of air bubbles between the cover plate and the optical adhesive layer, and to propose a display panel, a display panel bonding method, and a display device.

[0006] A display panel, comprising:

[0007] The screen body includes a straight portion and a bent portion arranged and connected along a first direction. The bent portion includes a straight area and a bent area. The straight area is located on the side of the bent area closer to the straight portion. The screen body has a first surface and a second surface arranged opposite to each other along its own thickness direction.

[0008] A polarizer is disposed on the first surface corresponding to the straight portion. The side of the polarizer close to the bent portion along the first direction is a blocking surface, and the blocking surface is parallel to the second direction. The angle between the first surface corresponding to the bent portion in the straight region and the blocking surface is less than 90 degrees. The first direction, the second direction, and the thickness direction of the screen body are arranged in pairs.

[0009] A protective layer is located on the first surface corresponding to the bent portion and is in contact with the blocking surface;

[0010] The adhesive layer is located on the side of the polarizer away from the screen body, and a portion of the protective layer is located on the side away from the screen body.

[0011] In one embodiment, the angle between the first surface corresponding to the bend in the straight section and the blocking surface is between 60 degrees and 80 degrees.

[0012] Optionally, the side of the polarizer closer to the first surface along the thickness direction of the screen body is the first contact surface, and the side of the polarizer away from the first surface along the thickness direction of the screen body is the second contact surface.

[0013] The orthographic projection of the first contact surface on the screen coincides with the first surface corresponding to the straight portion; the orthographic projection of the second contact surface on the screen partially overlaps with the first surface corresponding to the straight portion, and partially overlaps with the first surface corresponding to the bent portion of the straight area; the blocking surface is located between the first contact surface and the second contact surface.

[0014] In one embodiment, the protective layer has a first end and a second end disposed opposite to each other along the arrangement direction of the straight portion and the bent portion, the first end being in contact with the blocking surface;

[0015] The first end is defined as the third surface; from the direction from the straight portion to the bent portion, the distance between the third surface and the first surface corresponding to the bent portion of the straight portion gradually increases in the thickness direction of the screen body;

[0016] Optionally, the minimum distance between the third surface and the first surface corresponding to the bend in the straight area is a first value in the thickness direction of the screen body, and the difference between the first value and the size of the polarizer in the thickness direction of the screen body is greater than 0.

[0017] Optionally, the difference between the first value and the dimension of the polarizer in the thickness direction of the screen body is less than or equal to a preset value, wherein the preset value is between 50um and 60um.

[0018] In one embodiment, the orthographic projection of the adhesive layer on the screen body is partly located on the first surface corresponding to the straight portion and partly located on the first surface corresponding to the bent portion of the straight area;

[0019] Optionally, the area of ​​the adhesive layer portion projected within the first surface corresponding to the bend in the straight region is smaller than the area of ​​the first surface corresponding to the bend in the straight region.

[0020] In one embodiment, the third surface portion located between the side of the polarizer away from the flat portion and the side of the protective layer away from the flat portion is defined as a stepped surface;

[0021] The adhesive layer is bonded to the second contact surface, the stepped surface, and the side of the protective layer away from the bend in the straight area;

[0022] Optionally, the adhesive layer contacts the side of the protective layer away from the straight area of ​​the bend;

[0023] Optionally, the distance between the side of the adhesive layer away from the straight portion along the first direction and the side of the straight portion near the bend portion of the straight region is smaller than the size of the bend portion of the straight region in the first direction.

[0024] In one embodiment, the blocking surface has an uneven structure;

[0025] Optionally, a connecting layer is provided on the blocking surface, the connecting layer being located on the side of the protective layer near the straight portion along the first direction, between the protective layer and the blocking surface;

[0026] Alternatively, the connecting layer is configured as an adhesive layer.

[0027] In one embodiment, the display panel includes a cover plate located on the side of the adhesive layer away from the screen body along the thickness direction of the screen body;

[0028] Optionally, the cover plate extends from the side of the straight portion away from the first direction, and the adhesive layer extends from the side of the straight portion away from the first direction.

[0029] Optionally, the side of the cover plate away from the bend in the straight area along the first direction is flush with the side of the adhesive layer away from the bend in the straight area along the first direction.

[0030] In one embodiment, the adhesive layer has a protrusion on the side away from the screen body along the thickness direction of the screen body, and the orthographic projection of the protrusion on the screen body is located within the orthographic projection range of the side of the adhesive layer closer to the screen body on the screen body;

[0031] The display panel includes a light-shielding layer, which is located around the outside of the protrusion and contacts the adhesive layer on the side away from the screen body along the thickness direction of the screen body.

[0032] The cover plate is located on the side of the protrusion away from the screen body along the thickness of the screen body, and the light-shielding layer is located on the side away from the screen body along the thickness of the screen body;

[0033] Optionally, the outer periphery of the light-shielding layer is flush with the outer periphery of the cover plate;

[0034] Optionally, the side of the light-shielding layer away from the screen body along the thickness direction of the screen body is flush with the side of the protrusion away from the screen body along the thickness direction of the screen body.

[0035] In this embodiment, the display panel first attaches a polarizer to the first surface corresponding to the straight portion, and then forms a protective layer on the first surface corresponding to the bent portion. The side of the polarizer closest to the bent portion along the first direction serves as a blocking surface, and the protective layer contacts this blocking surface. During the formation of the protective layer, the blocking surface exerts an attractive force on the surface in contact with the protective layer, attracting the protective layer and causing the side of the protective layer closest to the blocking surface to adhere to it. This attractive force is parallel to the normal of the blocking surface and is related to the final thickness of the protective layer; a greater attractive force results in a thicker protective layer, and a smaller attractive force results in a thinner protective layer.

[0036] Because the angle between the first surface corresponding to the bend in the flat region and the blocking surface is less than 90 degrees, and the attractive force exerted by the blocking surface on the protective layer is parallel to the normal of the blocking surface, the attractive force points from the protective layer to the blocking surface; the gravity of the protective layer is parallel to the thickness direction of the screen, and the gravity of the protective layer points from the protective layer to the screen; therefore, during the formation of the protective layer, the angle between the attractive force exerted by the blocking surface on the protective layer and the gravity of the protective layer itself is greater than 90 degrees. The component of the gravity of the protective layer itself in the direction of the attractive force will cancel out at least part of the attractive force, resulting in a reduction in the attractive force used to attract the protective layer, a reduction in the final thickness of the protective layer, and a decrease in the height of the protective layer on the side away from the screen along the thickness direction of the screen, which is higher than the height of the polarizer on the side away from the screen along the thickness direction of the screen.

[0037] Because the height of the protective layer on the side away from the screen body along the thickness direction is reduced compared to the side of the polarizer on the same direction, the corner where the polarizer (away from the screen body) and the protective layer (closer to the screen body) meet along the first direction can be completely bonded by the adhesive layer during the process of attaching the thinned adhesive layer to the side of the polarizer away from the screen body and part of the protective layer. This reduces the likelihood of air bubbles forming. Furthermore, during the process of pressing the cover plate onto the side of the adhesive layer away from the screen body, air bubbles are less likely to form between the cover plate and the adhesive layer, thus improving the yield rate of the display panel.

[0038] In summary, the display panel in this embodiment, by setting the side of the polarizer close to the bending portion along the first direction as the blocking surface, and the angle between the first surface corresponding to the bending portion in the straight area and the blocking surface is less than 90 degrees, can reduce the thickness of the final protective layer and improve the yield of the display panel.

[0039] This application also proposes a display panel bonding method for preparing the aforementioned display panel, the method comprising:

[0040] The polarizer is attached to the first surface corresponding to the straight section;

[0041] The protective layer is attached to the first surface corresponding to the bend.

[0042] The adhesive layer is attached to the side of the polarizer away from the screen body, and a portion of the protective layer is attached to the side of the protective layer away from the screen body.

[0043] The display panel bonding method in this embodiment first bonds a polarizer to the first surface corresponding to the flat portion, then forms a protective layer on the first surface corresponding to the bent portion, and finally bonds an adhesive layer to the side of the polarizer away from the screen body and part of the protective layer away from the screen body. The side of the polarizer closest to the bent portion along the first direction is a blocking surface, and the protective layer contacts the blocking surface. During the formation of the protective layer, the blocking surface applies an attractive force to the surface in contact with the protective layer to attract the protective layer, causing the side of the protective layer closest to the blocking surface to adhere to the blocking surface. This attractive force is parallel to the normal of the blocking surface and is related to the thickness of the final protective layer; the greater the attractive force, the greater the thickness of the formed protective layer; the smaller the attractive force, the smaller the thickness of the formed protective layer.

[0044] Because the angle between the first surface corresponding to the bend in the flat region and the blocking surface is less than 90 degrees, and the attractive force exerted by the blocking surface on the protective layer is parallel to the normal of the blocking surface, the attractive force points from the protective layer to the blocking surface; the gravity of the protective layer is parallel to the thickness direction of the screen, and the gravity of the protective layer points from the protective layer to the screen; therefore, during the formation of the protective layer, the angle between the attractive force exerted by the blocking surface on the protective layer and the gravity of the protective layer itself is greater than 90 degrees. The component of the gravity of the protective layer itself in the direction of the attractive force will cancel out at least part of the attractive force, resulting in a reduction in the attractive force used to attract the protective layer, a reduction in the final thickness of the protective layer, and a decrease in the height of the protective layer on the side away from the screen along the thickness direction of the screen, which is higher than the height of the polarizer on the side away from the screen along the thickness direction of the screen.

[0045] Because the height of the protective layer on the side away from the screen body along the thickness direction is reduced compared to the side of the polarizer on the same direction, the corner where the polarizer (away from the screen body) and the protective layer (closer to the screen body) meet along the first direction can be completely bonded by the adhesive layer during the process of attaching the thinned adhesive layer to the side of the polarizer away from the screen body and part of the protective layer. This reduces the likelihood of air bubbles forming. Furthermore, during the process of pressing the cover plate onto the side of the adhesive layer away from the screen body, air bubbles are less likely to form between the cover plate and the adhesive layer, thus improving the yield rate of the display panel.

[0046] In summary, the display panel manufactured by the display panel bonding method in this embodiment, by setting the side of the polarizer close to the bending portion along the first direction as the blocking surface, and the angle between the first surface corresponding to the bending portion in the straight area and the blocking surface is less than 90 degrees, can reduce the thickness of the final protective layer and improve the yield of the display panel.

[0047] This application also proposes a display device including the aforementioned display panel.

[0048] In this embodiment of the display device, a polarizer is first attached to the first surface corresponding to the straight portion, then a protective layer is formed on the first surface corresponding to the bent portion, and finally an adhesive layer is attached to the side of the polarizer away from the screen body and a portion of the protective layer away from the screen body. The side of the polarizer closest to the bent portion along the first direction is a blocking surface, and the protective layer is in contact with the blocking surface. During the formation of the protective layer, the blocking surface exerts an attractive force on the surface in contact with the protective layer to attract the protective layer, causing the side of the protective layer closest to the blocking surface to adhere to the blocking surface. This attractive force is parallel to the normal of the blocking surface and is related to the thickness of the final protective layer; the greater the attractive force, the greater the thickness of the formed protective layer; the smaller the attractive force, the smaller the thickness of the formed protective layer.

[0049] Because the angle between the first surface corresponding to the bend in the flat region and the blocking surface is less than 90 degrees, and the attractive force exerted by the blocking surface on the protective layer is parallel to the normal of the blocking surface, the attractive force points from the protective layer to the blocking surface; the gravity of the protective layer is parallel to the thickness direction of the screen, and the gravity of the protective layer points from the protective layer to the screen; therefore, during the formation of the protective layer, the angle between the attractive force exerted by the blocking surface on the protective layer and the gravity of the protective layer itself is greater than 90 degrees. The component of the gravity of the protective layer itself in the direction of the attractive force will cancel out at least part of the attractive force, resulting in a reduction in the attractive force used to attract the protective layer, a reduction in the final thickness of the protective layer, and a decrease in the height of the protective layer on the side away from the screen along the thickness direction of the screen, which is higher than the height of the polarizer on the side away from the screen along the thickness direction of the screen.

[0050] Because the height of the protective layer on the side away from the screen body along the thickness direction is reduced compared to the side of the polarizer on the same direction, the corner where the polarizer (away from the screen body) and the protective layer (closer to the screen body) meet along the first direction can be completely bonded by the adhesive layer during the process of attaching the thinned adhesive layer to the side of the polarizer away from the screen body and part of the protective layer. This reduces the likelihood of air bubbles forming. Furthermore, during the process of pressing the cover plate onto the side of the adhesive layer away from the screen body, air bubbles are less likely to form between the cover plate and the adhesive layer, thus improving the yield rate of the display panel.

[0051] In summary, the display device in this embodiment, by setting the side of the polarizer close to the bending portion along the first direction as the blocking surface, and the angle between the first surface corresponding to the bending portion in the straight area and the blocking surface is less than 90 degrees, can reduce the thickness of the final protective layer and improve the yield of the display panel. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a partial structural diagram of the display panel in one embodiment of this application.

[0054] Figure 2 for Figure 1 Top view of point A in the middle.

[0055] Figure 3 for Figure 1 The diagram shows the structure of the display panel after the cover plate is attached.

[0056] Figure 4 for Figure 3 The dimensions of the display panel are shown in the diagram.

[0057] Figure 5 for Figure 1 A schematic diagram of the structure of the middle blocking surface.

[0058] Figure 6 for Figure 3 The diagram shows the structure of the display panel after a light-shielding layer is wrapped around the protruding part.

[0059] Figure 7 This is a flowchart of a display panel bonding method in one embodiment of this application.

[0060] Figure label:

[0061] Display panel 10;

[0062] The screen body is 100, the straight part is 110, the bent part is 120, the straight area is 121, the bent area is 122, the first surface is 130, and the second surface is 140.

[0063] Polarizing film 200, blocking surface 210, first contact surface 220, second contact surface 230;

[0064] Protective layer 300, first end 310, step surface 311, second end 320;

[0065] Adhesive layer 400, protrusion 410;

[0066] 500mm light-shielding layer;

[0067] Cover plate 600. Detailed Implementation

[0068] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0069] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0070] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0072] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0074] Please see Figure 1 and Figure 2 , Figure 1A partial structural schematic diagram of a display panel according to an embodiment of this application is shown. An embodiment of this application provides a display panel 10, comprising: a screen body 100, a polarizer 200, a protective layer 300, and an adhesive layer 400. The screen body 100 includes a straight portion 110 and a bent portion 120 arranged and connected along a first direction. The bent portion 120 includes a straight area 121 and a bent area 122, with the straight area 121 located on the side of the bent area 122 closer to the straight portion 110. The screen body 100 has a first surface 130 and a second surface 140 disposed opposite to each other along its own thickness direction. A polarizer 200 is disposed on the first surface 130 corresponding to the straight portion 110. The side of the polarizer 200 near the bent portion 120 along the first direction forms a blocking surface 210, which is parallel to the second direction. The angle between the first surface 130 corresponding to the bent portion 120 of the straight region 121 and the blocking surface 210 is less than 90 degrees. The first direction, the second direction, and the thickness direction of the screen body 100 intersect each other. A protective layer 300 is located on the first surface 130 corresponding to the bent portion 120 and is in contact with the blocking surface 210. An adhesive layer 400 is located on the side of the polarizer 200 away from the screen body 100, and a portion of the protective layer 300 is also located on the side of the protective layer 300 away from the screen body 100.

[0075] In this embodiment, the display panel 10 first attaches a polarizer 200 to the first surface 130 corresponding to the straight portion 110, and then forms a protective layer 300 on the first surface 130 corresponding to the bent portion 120. The side of the polarizer 200 closest to the bent portion 120 along the first direction is a blocking surface 210, and the protective layer 300 contacts the blocking surface 210. During the formation of the protective layer 300, the blocking surface 210 applies an attractive force F1 to the surface in contact with the protective layer 300 to attract the protective layer 300, causing the side of the protective layer 300 closest to the blocking surface 210 to adhere to the blocking surface 210. This attractive force F1 is parallel to the normal of the blocking surface 210 and is related to the thickness of the final protective layer 300; the larger the attractive force F1, the thicker the protective layer 300; the smaller the attractive force F1, the thinner the protective layer 300.

[0076] Since the angle α between the first surface 130 corresponding to the bend 120 of the straight section 121 and the blocking surface 210 is less than 90 degrees, and the attractive force F1 exerted by the blocking surface 210 on the protective layer 300 is parallel to the normal of the blocking surface 210, the attractive force F1 points from the protective layer 300 to the blocking surface 210; the gravity of the protective layer 300 is parallel to the thickness direction of the screen 100, and the gravity G of the protective layer 300 points from the protective layer 300 to the screen 100; therefore, during the formation of the protective layer 300, the blocking surface 210 exerts a force F1 on the protective layer 300. The angle between the attractive force F1 exerted by the protective layer 300 and the weight G of the protective layer 300 itself is greater than 90 degrees. The component force G1 of the weight G of the protective layer 300 itself in the direction of the attractive force F1 will cancel at least part of the attractive force F1, resulting in a reduction in the attractive force F1 used to attract the protective layer 300. The final thickness of the protective layer 300 is reduced, and the height of the protective layer 300 on the side away from the screen body 100 along the thickness direction of the screen body is lowered than the height of the polarizer 200 on the side away from the screen body 100 along the thickness direction of the screen body 100.

[0077] Because the height of the protective layer 300 on the side away from the screen 100 along the thickness direction of the screen 100 is reduced compared to the side of the polarizer 200 away from the screen 100 along the thickness direction of the screen 100, during the process of attaching the thinned adhesive layer 400 to the side of the polarizer 200 away from the screen 100 and part of the protective layer 300 away from the screen 100, the corner at the contact point between the side of the polarizer 200 away from the screen 100 and the side of the protective layer 300 near the polarizer 200 along the first direction can be completely adhered by the adhesive layer 400, making it less likely to form air voids. During the process of pressing the cover plate 600 onto the side of the adhesive layer 400 away from the screen 100, air bubbles are less likely to form between the cover plate 600 and the adhesive layer 400, thus improving the yield rate of the display panel 10.

[0078] In summary, in this embodiment, the display panel 10, by setting the side of the polarizer 200 close to the bending portion 120 along the first direction as the blocking surface 210, and the angle α between the first surface 130 corresponding to the bending portion 120 of the flat area 121 and the blocking surface 210 is less than 90 degrees, can reduce the thickness of the final protective layer 300 and improve the yield of the display panel 10.

[0079] Please see Figure 1 In some embodiments, the angle between the first surface 130 corresponding to the bend 120 of the straight region 121 and the blocking surface 210 is between 60 degrees and 80 degrees.

[0080] In this embodiment, by setting the angle between the first surface 130 corresponding to the bend 120 of the flat region 121 and the blocking surface 210 to be less than or equal to 80 degrees, the weight G of the protective layer 300 itself has a component force G1 in the direction of the attraction force F1, thereby facilitating the component force G1 to counteract at least part of the attraction force F1. By setting the angle between the first surface 130 corresponding to the bend 120 of the flat region 121 and the blocking surface 210 to be greater than or equal to 60 degrees, it can be ensured that during the formation of the protective layer 300, the corner at the contact point between the blocking surface 210 and the first surface 130 corresponding to the bend 120 of the flat region 121 is filled, thereby preventing the formation of gas pores at the corner where the blocking surface 210 and the first surface 130 corresponding to the bend 120 of the flat region 121 connect after the protective layer 300 is formed.

[0081] In some embodiments, the side of the polarizer 200 closest to the first surface 130 along the thickness direction of the screen 100 is the first contact surface 220, and the side of the polarizer 200 furthest from the first surface 130 along the thickness direction of the screen 100 is the second contact surface 230. The orthographic projection of the first contact surface 220 on the screen 100 coincides with the first surface 130 corresponding to the straight portion 110; the orthographic projection of the second contact surface 230 on the screen 100 partially overlaps with the first surface 130 corresponding to the straight portion 110, and another part overlaps with the first surface 130 corresponding to the bent portion 120 of the straight region 121; the blocking surface 210 is located between the first contact surface 210 and the second contact surface 230.

[0082] In this embodiment, the orthographic projection of the first contact surface 220 on the screen 100 coincides with the first surface 130 corresponding to the straight portion 110; the orthographic projection of the second contact surface 230 on the screen 100 partially overlaps with the first surface 130 corresponding to the straight portion 110, and partially overlaps with the first surface 130 corresponding to the bent portion 120 of the straight area 121. This ensures that the angle between the blocking surface 210 and the first surface 130 corresponding to the straight portion 110 is greater than 90 degrees; thus, the angle α between the blocking surface 210 and the first surface 130 corresponding to the bent portion 120 of the straight area 121 is less than 90 degrees.

[0083] In some embodiments, the bend portion 120 of the bend region 122 bends in the direction of the bend portion 120 pointing from the straight portion 110 to the straight portion 121.

[0084] In some embodiments, the display panel 10 includes a bonding portion (not shown), which is located on the side of the second surface 140 away from the first surface 130 along the thickness direction of the screen body 100 and is spaced apart from the second surface 140; the bending portion 120 is located on the same side of the straight portion 110 and the bonding portion in the first direction, and the bending portion 120 of the bending region 122 is connected to the bonding portion on the side of the bending portion 120 away from the straight region 121 in the bending direction of the bending portion 120 of the bending region 122.

[0085] In some embodiments, the display panel 10 includes a support structure (not shown in the figure), the support structure includes a first back plate (not shown in the figure), the first back plate is located between the flat portion 110 of the screen body 100 and the binding portion of the screen body 100; the first back plate is attached to the second surface 140, and a gap is provided between the side of the first back plate away from the screen body 100 along the thickness direction of the screen body 100 and the side of the binding portion close to the screen body 100 along the thickness direction of the screen body 100.

[0086] In some embodiments, the support structure includes a second back plate (not shown in the figure), which is located between the first back plate and the binding portion of the screen body 100. The second back plate is attached to the side of the binding portion close to the screen body 100 along the thickness direction of the screen body 100. A gap is provided between the side of the second back plate close to the screen body 100 along the thickness direction of the screen body 100 and the side of the first back plate away from the screen body 100 along the thickness direction of the screen body 100.

[0087] In some embodiments, the support structure includes a support layer (not shown in the figure), which is located between the first back plate and the second back plate. The side of the support layer close to the screen 100 along the thickness direction of the screen 100 contacts the side of the first back plate away from the screen 100 along the thickness direction of the screen 100. The side of the support layer away from the screen 100 along the thickness direction of the screen 100 contacts the side of the second back plate close to the screen 100 along the thickness direction of the screen 100.

[0088] In some embodiments, the support layer may include multiple film layers such as foam, stainless steel, and graphite to further ensure the support effect.

[0089] In some embodiments, the first backplate and the second backplate may be composed of the same material, such as polyimide, chlorinated polyethylene, polyethylene naphthalate, or other high molecular polymers.

[0090] Please see Figure 3In some embodiments, the protective layer 300 has a first end 310 and a second end 320 disposed opposite to each other along the arrangement direction of the straight portion 110 and the bent portion 120, and the first end 310 is in contact with the blocking surface 210. The first end 310 is defined as the third surface; from the direction from the straight portion 110 to the bent portion 120, the spacing D1 between the third surface and the first surface 130 corresponding to the bent portion 120 of the straight region 121 gradually increases in the thickness direction of the screen body 100.

[0091] In this embodiment, by setting the direction from the straight portion 110 to the bent portion 120, the distance D1 between the third surface and the first surface 130 corresponding to the bent portion 120 of the straight area 121 gradually increases in the thickness direction of the screen body 100; so that the third surface can better fit with the blocking surface 210, thereby ensuring that the corner at the contact point between the blocking surface 210 and the first surface 130 corresponding to the bent portion 120 of the straight area 121 is filled during the formation of the protective layer 300.

[0092] In some embodiments, the minimum distance between the third surface and the first surface 130 corresponding to the bend 120 of the flat area 121 in the thickness direction of the screen body 100 is a first value, and the difference between the first value and the dimension D2 of the polarizer 200 in the thickness direction of the screen body 100 is greater than 0.

[0093] In this embodiment, since the difference between the first value and the dimension D2 of the polarizer 200 in the thickness direction of the screen body 100 is greater than 0, there is a corner at the position where the protective layer 300 contacts the side of the polarizer 200 away from the screen body 100 along the first direction close to the polarizer 200.

[0094] In some embodiments, the difference between the first value and the dimension D2 of the polarizer 200 in the thickness direction of the screen 100 is less than or equal to a preset value, which is between 50um and 60um.

[0095] In this embodiment, since the preset value is between 50um and 60um, the height of the protective layer 300 on the side away from the screen 100 along the thickness direction of the screen body is relatively small compared to the side of the polarizer 200 away from the screen 100 along the thickness direction of the screen body. Therefore, during the process of attaching the thinned adhesive layer 400 to the side of the polarizer 200 away from the screen body 100 and part of the protective layer 300 away from the screen body 100, the corner at the contact point between the side of the polarizer 200 away from the screen body 100 and the side of the protective layer 300 close to the polarizer 200 along the first direction can be completely adhered by the adhesive layer 400, making it less likely to form gas pores.

[0096] Please see Figure 3 and Figure 4In some embodiments, the orthographic projection of the adhesive layer 400 on the screen 100 is partly located on the first surface 130 corresponding to the straight portion 110 and partly located on the first surface 130 corresponding to the bent portion 120 of the straight area 121.

[0097] In this embodiment, a portion of the adhesive layer 400 is at least partially bonded to the protective layer 300 that is in contact with the first surface 130 corresponding to the bend 120 located in the flat area 121.

[0098] In some embodiments, the area of ​​the adhesive layer 400 portion projected within the first surface 130 corresponding to the bend 120 in the flat region 121 is smaller than the area of ​​the first surface 130 corresponding to the bend 120 in the flat region 121.

[0099] In this embodiment, the portion of the adhesive layer 400 that is attached to the protective layer 300 does not completely cover the portion of the protective layer 300 that is in contact with the first surface 130 corresponding to the bend 120 located in the straight area 121.

[0100] Please see Figure 3 and Figure 4 In some embodiments, a third surface portion located between the side of the polarizer 200 away from the flat portion 110 and the side of the protective layer 300 away from the bent portion 120 of the flat region 121 is defined as a stepped surface 311; the adhesive layer 400 is bonded to the second contact surface 230, the stepped surface 311, and the side of the protective layer 300 away from the bent portion 120 of the flat region 121.

[0101] In this embodiment, the third surface contacts the blocking surface 210. The angle b between the third surface and the first surface 130 corresponding to the straight portion 110 is equal to 180 degrees minus the angle a between the first surface 130 corresponding to the bent portion 120 of the straight region 121 and the blocking surface 210. Since the angle a between the first surface 130 corresponding to the bent portion 120 of the straight region 121 and the blocking surface 210 is less than 90 degrees, the angle b between the third surface and the first surface 130 corresponding to the straight portion 110 is an obtuse angle. Furthermore, since the stepped surface 311 is a third surface, and the second contact surface 230 is parallel to the first surface 130, the angle between the stepped surface 311 and the second contact surface 230 is equal in size to the angle b, and is also an obtuse angle.

[0102] By setting the angle of the corner where the second contact surface 230 contacts the step surface 311 to an obtuse angle, it is beneficial to ensure that the adhesive layer 400 is completely adhered to the corner where the second contact surface 230 contacts the step surface 311 during the process of attaching the thinned adhesive layer 400 to the side of the polarizer 200 away from the screen body 100 and to the side of the protective layer 300 away from the screen body 100, and to expel the gas around the corner where the second contact surface 230 contacts the step surface 311.

[0103] In some embodiments, the adhesive layer 400 contacts the side of the protective layer 300 away from the bend 120 of the flat region 121.

[0104] In some embodiments, the distance between the side of the adhesive layer 400 away from the straight portion 110 along the first direction and the side of the straight portion 110 near the bend portion 120 of the straight region 121 is less than the dimension D3 of the bend portion 120 of the straight region 121 in the first direction.

[0105] In this embodiment, by setting the distance between the side of the adhesive layer 400 away from the straight portion 110 along the first direction and the side of the straight portion 110 near the bend portion 120 of the straight area 121 to be smaller than the dimension D3 of the bend portion 120 of the straight area 121 in the first direction, the adhesive layer 400 can be made to contact the side of the protective layer 300 away from the bend portion 120 of the straight area 121.

[0106] Please see Figure 1 , Figure 4 and Figure 5 In some embodiments, the blocking surface 210 is provided with a concave-convex structure.

[0107] In this embodiment, since the blocking surface 210 has a concave-convex structure, the blocking surface 210 has a large friction force. By increasing the friction force of the blocking surface 210, on the one hand, it is beneficial for the protective layer 300 to be adsorbed on the blocking surface 210; on the other hand, it can increase the attraction force F1 of the blocking surface 210 on the protective layer 300, thereby ensuring the sealing effect at the blocking surface 210 of the polarizer 200.

[0108] In some embodiments, the concave structure of the blocking surface 210 includes a groove, the convex structure includes a protrusion located between the grooves, or there may be only a groove that is concave relative to the blocking surface 210, or only a convex structure that is convex relative to the blocking surface. Grooves, protrusions and planar structures may also coexist.

[0109] Multiple grooves and / or protrusions are provided, and the multiple grooves or protrusions are arranged in rows and columns. The center line connecting the grooves or protrusions in the same row or column forms an S-shape. The cross-section of the protrusion can be trapezoidal, triangular, rhomboid, etc., to further increase the bonding force with the protective layer 300.

[0110] In some embodiments, a connecting layer (not shown) is provided on the blocking surface 210. The connecting layer is located on the side of the protective layer 300 close to the straight portion 110 along the first direction, between the blocking surface 210 and the protective layer 300.

[0111] In this embodiment, during the formation of the protective layer 300, the connecting layer on the blocking surface 210 comes into contact with the protective layer, and the connecting layer applies an attractive force F1 to the protective layer 300; the setting of the connecting layer can enhance the sealing effect at the blocking surface 210 of the polarizer 200.

[0112] In some embodiments, the bonding layer is configured as an adhesive layer.

[0113] In this embodiment, by constructing the connecting layer as an adhesive layer, the connection effect of the connecting layer can be improved.

[0114] Please see Figure 3 In some embodiments, the display panel 10 includes a cover plate 600 located on the side of the adhesive layer 400 away from the screen body 100 along the thickness direction of the screen body 100.

[0115] In this embodiment, the display panel 10 can be protected by attaching a cover plate 600 to the side of the adhesive layer 400 away from the screen body 100 along the thickness direction of the screen body 100. It should be noted that the cover plate 600 can be a layer formed of polyimide, polyethylene terephthalate, ultra-thin glass (UTG), etc.

[0116] In some embodiments, the cover plate 600 extends from the side of the flat portion 110 away from the flat portion 110 along the first direction, and the adhesive layer 400 extends from the side of the flat portion 110 away from the flat portion 110 along the first direction.

[0117] In this embodiment, since the cover plate 600 extends from the side of the flat portion 110 away from the flat portion 110 along the first direction, the adhesive layer 400 extends from the side of the flat portion 110 away from the flat portion 110 along the first direction, the cover plate 600 can protect the flat portion 110 of the screen body 100.

[0118] In some embodiments, the side of the cover plate 600 away from the bend 120 of the flat area 121 along the first direction is flush with the side of the adhesive layer 400 away from the bend 120 of the flat area 121 along the first direction.

[0119] In this embodiment, the side of the cover plate 600 away from the straight portion 110 along the first direction extends beyond the side of the adhesive layer 400 away from the straight portion 110 along the first direction; and the side of the cover plate 600 away from the bent portion 120 of the straight area 121 along the first direction is flush with the side of the adhesive layer 400 away from the bent portion 120 of the straight area 121 along the first direction. Therefore, the projection of the cover plate 600 on the screen 100 covers the first surface 130 corresponding to the straight portion 110, which can better protect the straight portion 110 of the screen 100.

[0120] In some embodiments, the material of the adhesive layer 400 includes a transparent optical adhesive, such as OCA.

[0121] In some embodiments, the projection of the cover plate 600 onto the screen 100 partially overlaps with the first surface 130 corresponding to the straight portion 110; and the other part at least partially overlaps with the first surface 130 corresponding to the bent portion 120 of the straight area 121.

[0122] In some embodiments, the projection of the cover plate 600 onto the screen 100 partially overlaps with the first surface 130 corresponding to the straight portion 110; and at least partially overlaps with the first surface 130 corresponding to the bent portion 120 of the straight area 121.

[0123] In some embodiments, the projection of the cover plate 600 onto the screen 100 partially overlaps with the first surface 130 corresponding to the straight portion 110; and partially overlaps with the first surface 130 corresponding to the bent portion 120 of the straight area 121.

[0124] Please see Figure 4 and Figure 6 In some embodiments, the adhesive layer 400 has a protrusion 410 on the side away from the screen body 100 along the thickness direction of the screen body 100. The orthographic projection of the protrusion 410 on the screen body 100 is located within the orthographic projection range of the adhesive layer 400 on the screen body 100 on the side closer to the screen body 100. The display panel 10 includes a light-shielding layer 500, which is located around the outside of the protrusion 410 and contacts the side of the adhesive layer 400 away from the screen body 100 along the thickness direction of the screen body 100. The cover plate 600 is located on the side of the protrusion 410 away from the screen body 100 along the thickness direction of the screen body 100, and on the side of the light-shielding layer 500 away from the screen body 100 along the thickness direction of the screen body 100.

[0125] In this embodiment, by setting the light-shielding layer 500 to be located around the outside of the protrusion 410 and in contact with the adhesive layer 400 on the side away from the screen body 100 along the thickness direction of the screen body 100, the light-shielding layer 500 can block the portion of the adhesive layer 400 not covered by the protrusion 410, thereby achieving light shielding of the portion of the adhesive layer 400 not covered by the protrusion 410, preventing light from passing through the portion of the adhesive layer 400 not covered by the protrusion 410, and preventing the internal structure of the display panel 10 from being exposed through the portion of the adhesive layer 400 not covered by the protrusion 410.

[0126] In some embodiments, the outer periphery of the light-shielding layer 500 is flush with the outer periphery of the cover plate 600.

[0127] In this embodiment, by setting the outer periphery of the light-shielding layer 500 to be flush with the outer periphery of the cover plate 600, the light-shielding effect of the light-shielding layer 500 can be improved.

[0128] In some embodiments, the side of the light-shielding layer 500 away from the screen body 100 along the thickness direction of the screen body 100 is flush with the side of the protrusion 410 away from the screen body 100 along the thickness direction of the screen body 100.

[0129] In this embodiment, by setting the side of the light-shielding layer 500 away from the screen body 100 along the thickness direction of the screen body 100 to be flush with the side of the protrusion 410 away from the screen body 100 along the thickness direction of the screen body 100, it can prevent the cover plate 600 from breaking during the process of attaching it to the side of the light-shielding layer 500 away from the screen body 100 along the thickness direction of the screen body 100 and the side of the protrusion 410 away from the screen body 100 along the thickness direction of the screen body 100 due to the height difference between them; thus improving the success rate of the cover plate 600 attachment.

[0130] In some embodiments, the distance between the protrusion 410 and the side of the bend 120 of the flat region 121 along the first direction and the side of the adhesive layer 400 and the side of the bend 120 of the flat region 121 along the first direction is between 300um and 350um.

[0131] In this embodiment, by setting the protrusion 410 to be close to the side of the bend 120 of the flat area 121 along the first direction, the distance between the protrusion 410 and the side of the adhesive layer 400 to be close to the side of the bend 120 of the flat area 121 along the first direction is between 300um and 350um; this facilitates the light-shielding layer 500 to block the small-angle incident light at the edge of the flat area 110 of the screen body 100, so as to avoid affecting the normal display of the display panel 10.

[0132] In addition, it should be noted that since the outer periphery of the light-shielding layer 500 is flush with the outer periphery of the cover plate 600, the projection of the light-shielding layer 500 on the screen 100 partially overlaps with the first surface 130 corresponding to the bending portion 120 of the flat area 121. When the bending portion 120 of the bending area 122 is bent, the light-shielding layer 500 can block the frame area (not shown in the figure) of the display panel 10, block the metal traces in the display panel 10, and ensure the normal use of the display panel 10.

[0133] Please see Figure 7 , Figure 7 This application illustrates a display panel bonding method according to an embodiment of the present application, used to prepare the aforementioned display panel 10. The method includes:

[0134] S100: The polarizer 200 is attached to the first surface 130 corresponding to the straight portion 110.

[0135] S200: The protective layer 300 is attached to the first surface 130 corresponding to the bent portion 120.

[0136] S300: The adhesive layer 400 is attached to the side of the polarizer 200 away from the screen body 100, and part of the protective layer 300 away from the screen body 100.

[0137] In this embodiment, the display panel bonding method involves first bonding the polarizer 200 to the first surface 130 corresponding to the flat portion 110, then forming a protective layer 300 on the first surface 130 corresponding to the bent portion 120, and finally bonding the adhesive layer 400 to the side of the polarizer 200 away from the screen body 100 and a portion of the protective layer 300 away from the screen body 100. The side of the polarizer 200 near the bent portion 120 along the first direction forms a blocking surface 210, and the protective layer 300 contacts the blocking surface 210. During the formation of the protective layer 300, the blocking surface 210 applies an attractive force F1 to the surface in contact with the protective layer 300 to attract the protective layer 300, causing the side of the protective layer 300 closest to the blocking surface 210 to adhere to the blocking surface 210. The attractive force F1 is parallel to the normal of the blocking surface 210 and is related to the thickness of the final protective layer 300. The larger the attractive force F1, the larger the thickness of the formed protective layer 300; the smaller the attractive force F1, the smaller the thickness of the formed protective layer 300.

[0138] Since the angle α between the first surface 130 corresponding to the bend 120 of the straight section 121 and the blocking surface 210 is less than 90 degrees, and the attractive force F1 exerted by the blocking surface 210 on the protective layer 300 is parallel to the normal of the blocking surface 210, the attractive force F1 points from the protective layer 300 to the blocking surface 210; the gravity G of the protective layer 300 is parallel to the thickness direction of the screen 100, and the gravity G of the protective layer 300 points from the protective layer 300 to the screen 100; therefore, during the formation of the protective layer 300, the blocking surface 210 exerts a force F1 on the protective layer 300. The angle between the attractive force F1 exerted by the protective layer 300 and the weight G of the protective layer 300 itself is greater than 90 degrees. The component of the weight G of the protective layer 300 itself in the direction of the attractive force F1 will cancel out at least part of the attractive force F1, resulting in a reduction in the attractive force F1 used to attract the protective layer 300. The final thickness of the protective layer 300 is reduced, and the height of the protective layer 300 on the side away from the screen body 100 along the thickness direction of the screen body 100 is lower than the height of the polarizer 200 on the side away from the screen body 100 along the thickness direction of the screen body 100.

[0139] Because the height of the protective layer 300 on the side away from the screen 100 along the thickness direction of the screen 100 is reduced compared to the side of the polarizer 200 away from the screen 100 along the thickness direction of the screen 100, during the process of attaching the thinned adhesive layer 400 to the side of the polarizer 200 away from the screen 100 and part of the protective layer 300 away from the screen 100, the corner at the contact point between the side of the polarizer 200 away from the screen 100 and the side of the protective layer 300 near the polarizer 200 along the first direction can be completely adhered by the adhesive layer 400, making it less likely to form air voids. During the process of pressing the cover plate 600 onto the side of the adhesive layer 400 away from the screen 100, air bubbles are less likely to form between the cover plate 600 and the adhesive layer 400, thus improving the yield rate of the display panel 10.

[0140] In summary, the display panel 10 manufactured by the display panel bonding method in this embodiment can reduce the thickness of the final protective layer 300 and improve the yield of the display panel 10 by setting the side of the polarizer 200 close to the bending portion 120 along the first direction as the blocking surface 210, and the angle between the first surface 130 corresponding to the bending portion 120 of the flat area 121 and the blocking surface 210 is less than 90 degrees.

[0141] In some embodiments, after step S200 and before step S300, step S210 is included: peeling off the protective film (not shown) on the side of the polarizer 200 away from the screen body 100 along the thickness direction of the screen body 100.

[0142] This application also proposes a display device (not shown in the figure) including the aforementioned display panel 10.

[0143] In this embodiment of the display device, a polarizer 200 is first attached to the first surface 130 corresponding to the straight portion 110. Then, a protective layer 300 is formed on the first surface 130 corresponding to the bent portion 120. Finally, an adhesive layer 400 is attached to the side of the polarizer 200 away from the screen body 100, and to a portion of the protective layer 300 away from the screen body 100. The side of the polarizer 200 near the bent portion 120 along the first direction is a blocking surface 210, and the protective layer 300 is in contact with the blocking surface 210. During the formation of the protective layer 300, the blocking surface 210 applies an attractive force F1 to the surface in contact with the protective layer 300 to attract the protective layer 300, causing the side of the protective layer 300 closest to the blocking surface 210 to adhere to the blocking surface 210. The attractive force F1 is parallel to the normal of the blocking surface 210 and is related to the thickness of the final protective layer 300. The larger the attractive force F1, the larger the thickness of the formed protective layer 300; the smaller the attractive force F1, the smaller the thickness of the formed protective layer 300.

[0144] Since the angle α between the first surface 130 corresponding to the bend 120 of the straight section 121 and the blocking surface 210 is less than 90 degrees, and the attractive force F1 exerted by the blocking surface 210 on the protective layer 300 is parallel to the normal of the blocking surface 210, the attractive force F1 points from the protective layer 300 to the blocking surface 210; the gravity G of the protective layer 300 is parallel to the thickness direction of the screen 100, and the gravity G of the protective layer 300 points from the protective layer 300 to the screen 100; therefore, during the formation of the protective layer 300, the blocking surface 210 exerts a force F1 on the protective layer 300. The angle between the attractive force F1 exerted by the protective layer 300 and the weight G of the protective layer 300 itself is greater than 90 degrees. The component of the weight G of the protective layer 300 itself in the direction of the attractive force F1 will cancel out at least part of the attractive force F1, resulting in a reduction in the attractive force F1 used to attract the protective layer 300. As a result, the final thickness of the protective layer 300 is reduced, and the height of the protective layer 300 on the side away from the screen body 100 along the thickness direction of the screen body 100 is lower than the height of the polarizer 200 on the side away from the screen body 100 along the thickness direction of the screen body 100.

[0145] Because the height of the protective layer 300 on the side away from the screen 100 along the thickness direction of the screen 100 is reduced compared to the side of the polarizer 200 away from the screen 100 along the thickness direction of the screen 100, during the process of attaching the thinned adhesive layer 400 to the side of the polarizer 200 away from the screen 100 and part of the protective layer 300 away from the screen 100, the corner at the contact point between the side of the polarizer 200 away from the screen 100 and the side of the protective layer 300 near the polarizer 200 along the first direction can be completely adhered by the adhesive layer 400, making it less likely to form air voids. During the process of pressing the cover plate 600 onto the side of the adhesive layer 400 away from the screen 100, air bubbles are less likely to form between the cover plate 600 and the adhesive layer 400, thus improving the yield rate of the display panel 10.

[0146] In summary, the display device in this embodiment, by setting the side of the polarizer 200 close to the bending portion 120 along the first direction as the blocking surface 210, and the angle between the first surface 130 corresponding to the bending portion 120 of the flat area 121 and the blocking surface 210 is less than 90 degrees, can reduce the thickness of the final protective layer 300 and improve the yield of the display panel 10.

[0147] It should be further noted that the display device in this embodiment can also be any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, industrial control equipment, medical display screen, touch interactive terminal, etc. This embodiment of the invention does not impose any special limitations on this.

[0148] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes: The screen body includes a straight portion and a bent portion arranged and connected along a first direction. The bent portion includes a straight area and a bent area. The straight area is located on the side of the bent area closer to the straight portion. The screen body has a first surface and a second surface arranged opposite to each other along its own thickness direction. A polarizer is disposed on the first surface corresponding to the straight portion. The side of the polarizer close to the bent portion along the first direction is a blocking surface, and the blocking surface is parallel to the second direction. The angle between the first surface corresponding to the bent portion in the straight region and the blocking surface is less than 90 degrees. The first direction, the second direction, and the thickness direction of the screen body are arranged in pairs. A protective layer is located on the first surface corresponding to the bent portion and is in contact with the blocking surface; The adhesive layer is located on the side of the polarizer away from the screen body, and a portion of the protective layer is located on the side away from the screen body.

2. The display panel according to claim 1, characterized in that, The angle between the first surface corresponding to the bend in the straight section and the blocking surface is between 60 degrees and 80 degrees. Optionally, the side of the polarizer closer to the first surface along the thickness direction of the screen body is the first contact surface, and the side of the polarizer away from the first surface along the thickness direction of the screen body is the second contact surface. The orthographic projection of the first contact surface on the screen coincides with the first surface corresponding to the straight portion; the orthographic projection of the second contact surface on the screen partially overlaps with the first surface corresponding to the straight portion, and partially overlaps with the first surface corresponding to the bent portion of the straight area; the blocking surface is located between the first contact surface and the second contact surface.

3. The display panel according to claim 2, characterized in that, The protective layer has a first end and a second end that are arranged opposite to each other along the arrangement direction of the straight portion and the bent portion, and the first end is in contact with the blocking surface; The first end is defined as the third surface; from the direction from the straight portion to the bent portion, the distance between the third surface and the first surface corresponding to the bent portion of the straight portion gradually increases in the thickness direction of the screen body; Optionally, the minimum distance between the third surface and the first surface corresponding to the bend in the straight area is a first value in the thickness direction of the screen body, and the difference between the first value and the size of the polarizer in the thickness direction of the screen body is greater than 0. Optionally, the difference between the first value and the dimension of the polarizer in the thickness direction of the screen body is less than or equal to a preset value, wherein the preset value is between 50um and 60um.

4. The display panel according to claim 3, characterized in that, The orthographic projection of the adhesive layer on the screen body is partly located on the first surface corresponding to the straight portion, and partly located on the first surface corresponding to the bent portion of the straight area; Optionally, the area of ​​the adhesive layer portion projected within the first surface corresponding to the bend in the straight region is smaller than the area of ​​the first surface corresponding to the bend in the straight region.

5. The display panel according to claim 4, characterized in that, The third surface portion located on the side of the polarizer away from the flat portion, and between the side of the protective layer away from the flat portion, is defined as a stepped surface; The adhesive layer is bonded to the second contact surface, the stepped surface, and the side of the protective layer away from the bend in the straight area; Optionally, the adhesive layer contacts the side of the protective layer away from the straight area of ​​the bend; Optionally, the distance between the side of the adhesive layer away from the straight portion along the first direction and the side of the straight portion near the bend portion of the straight region is smaller than the size of the bend portion of the straight region in the first direction.

6. The display panel according to claim 1, characterized in that, The blocking surface has a concave-convex structure; Optionally, a connecting layer is provided on the blocking surface, the connecting layer being located on the side of the protective layer near the straight portion along the first direction, between the protective layer and the blocking surface; Alternatively, the connecting layer is configured as an adhesive layer.

7. The display panel according to claim 1, characterized in that, The display panel includes a cover plate, which is located on the side of the adhesive layer away from the screen body along the thickness direction of the screen body; Optionally, the cover plate extends from the side of the straight portion away from the first direction, and the adhesive layer extends from the side of the straight portion away from the first direction. Optionally, the side of the cover plate away from the bend in the straight area along the first direction is flush with the side of the adhesive layer away from the bend in the straight area along the first direction.

8. The display panel according to claim 7, characterized in that, The adhesive layer has a protrusion on the side away from the screen body along the thickness direction of the screen body, and the orthographic projection of the protrusion on the screen body is located within the orthographic projection range of the side of the adhesive layer closer to the screen body on the screen body; The display panel includes a light-shielding layer, which is located around the outside of the protrusion and contacts the adhesive layer on the side away from the screen body along the thickness direction of the screen body. The cover plate is located on the side of the protrusion away from the screen body along the thickness of the screen body, and the light-shielding layer is located on the side away from the screen body along the thickness of the screen body; Optionally, the outer periphery of the light-shielding layer is flush with the outer periphery of the cover plate; Optionally, the side of the light-shielding layer away from the screen body along the thickness direction of the screen body is flush with the side of the protrusion away from the screen body along the thickness direction of the screen body.

9. A method for bonding a display panel, characterized in that, The method for preparing the display panel according to any one of claims 1 to 8 comprises: The polarizer is attached to the first surface corresponding to the straight section; The protective layer is attached to the first surface corresponding to the bend. The adhesive layer is attached to the side of the polarizer away from the screen body, and a portion of the protective layer is attached to the side of the protective layer away from the screen body.

10. A display device, characterized in that, Includes the display panel described in any one of claims 1-8.

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