Display panel and display apparatus

Abstract

Disclosed in the present application are a display panel and a display apparatus. A protective layer is arranged on a light emergent side of a panel main body, the protective layer comprising ultra-thin glass and a protective structure, the ultra-thin glass comprising a first surface close to the panel main body and a plurality of side surfaces connected to the first surface, and the protective structure at least covers a plurality of side surfaces; an orthographic projection of a side surface on the panel main body deviates from the center of the panel main body, and the absolute value of the difference between the refractive index of the protective structure and the refractive index of the ultra-thin glass is less than or equal to 0.02.

Description

Display panel and display device Technical Field

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

[0002] Folding display devices are a future technology development trend. Folding has brought a new development direction to the display industry. Currently, the most popular ones are organic light emitting diode (OLED) display devices. They have unique bending and folding properties, which can be prepared into folding display devices in various forms. They are easy to carry and store when going out, and have received widespread attention in the market.

[0003] Currently, foldable display devices generally use ultra-thin glass (UTG) with excellent flexibility and optical performance. However, due to lamination tolerances and the need to prevent the ultra-thin glass from breaking during the cutting process, the ultra-thin glass cannot cover the edges of the display device. As a result, the side edges of the display device are less protected and are more susceptible to damage and failure due to impact. SUMMARY OF THE INVENTION

[0004] The embodiments of the present application provide a display panel and a display device, which can improve the protection effect of the edge of the panel body in the display panel, reduce the border width of the display panel, and improve the display effect.

[0005] The present invention further provides a display panel, comprising:

[0006] Panel body;

[0007] a protective layer disposed on the light-emitting side of the panel body, the protective layer comprising ultra-thin glass and a protective structure, the ultra-thin glass comprising a first surface adjacent to the panel body and a plurality of side surfaces connected to the first surface, the protective structure covering at least the plurality of side surfaces;

[0008] The orthographic projection of the side surface on the panel body deviates from the center of the panel body, and the absolute value of the difference between the refractive index of the protection structure and the refractive index of the ultra-thin glass is less than or equal to 0.02.

[0009] In accordance with the above-mentioned purpose of the present application, an embodiment of the present application further provides a display device, wherein the display device includes a display panel, and the display panel includes:

[0010] Panel body;

[0011] a protective layer disposed on the light-emitting side of the panel body, the protective layer comprising ultra-thin glass and a protective structure, the ultra-thin glass comprising a first surface adjacent to the panel body and a plurality of side surfaces connected to the first surface, the protective structure covering at least the plurality of side surfaces;

[0012] The orthographic projection of the side surface on the panel body deviates from the center of the panel body, and the absolute value of the difference between the refractive index of the protection structure and the refractive index of the ultra-thin glass is less than or equal to 0.02. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a schematic structural diagram of a display panel provided in the related art;

[0014] FIG2 is another schematic structural diagram of a display panel provided in the related art;

[0015] FIG3 is a schematic structural diagram of a display panel provided in an embodiment of the present application;

[0016] FIG4 is a schematic structural diagram of a protective layer provided in an embodiment of the present application;

[0017] FIG5 is another schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0018] FIG6 is another schematic structural diagram of a display panel provided in an embodiment of the present application;

[0019] FIG7 is another schematic structural diagram of a display panel provided in an embodiment of the present application;

[0020] FIG8 is another schematic structural diagram of a display panel provided in an embodiment of the present application;

[0021] 9 to 27 are schematic structural diagrams of the manufacturing process of the display panel provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0023] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0024] Please refer to Figure 1. In a display panel provided by the relevant technology, the display panel includes a panel body 1, a back plate 3 arranged on the back side of the panel body 1, a polarizer 2 arranged on the light-emitting side of the panel body 1, an ultra-thin glass 4 arranged on the side of the polarizer 2 away from the panel body 1, a first optical adhesive layer 5 arranged between the ultra-thin glass 4 and the polarizer 2, a cover plate 6 arranged on the side of the ultra-thin glass 4 away from the polarizer 2, and a second optical adhesive layer 7 arranged between the cover plate 6 and the ultra-thin glass 2; wherein, the light-emitting side of the panel body 1 is provided with protective layers such as the ultra-thin glass 4 and the cover plate 6, and the ultra-thin glass 4 does not cover the edge of the panel body 1 and cannot play a protective role. However, since the light-emitting side of the panel body 1 is also covered with the polarizer 2, it can also play a protective role for the edge of the panel body 1; but it will increase the thickness of the display panel, which is not conducive to the demand for thinness and lightness of the display panel.

[0025] Further, please refer to Figure 2. In a depolarizing film display panel provided by the related art, the display panel includes a panel body 1, a back panel 2 arranged on the back side of the panel body 1, an ultra-thin glass 3 arranged on the light-emitting side of the panel body 1, a first optical adhesive layer 4 arranged between the panel body 1 and the ultra-thin glass 3, a cover plate 5 arranged on the side of the ultra-thin glass 3 away from the panel body 1, and a second optical adhesive layer 7 arranged between the cover plate 5 and the ultra-thin glass 3; wherein, a color film layer is provided in the panel body 1 to play a role of anti-reflection, and thus a polarizer does not need to be provided on the light-emitting side of the panel body 1, which effectively reduces the thickness of the display panel. However, since the ultra-thin glass 3 cannot cover the edge position of the panel body 1, the side edges of the panel body 1 are prone to damage and failure due to impact.

[0026] 3 , an embodiment of the present application further provides a display panel, which includes a panel body 10 and a protective layer 20 .

[0027] Among them, the protective layer 20 is arranged on the light-emitting side of the panel body 10, and the protective layer 20 includes ultra-thin glass 21 and a protective structure 22. The ultra-thin glass 21 includes a first surface 201 close to the side of the panel body 10 and multiple side surfaces 203 connected to the first surface 201. The protective structure 22 at least covers multiple side surfaces 203.

[0028] Furthermore, the orthographic projection of the side surface 203 on the panel body 10 deviates from the center of the panel body 10 , and the absolute value of the difference between the refractive index of the protection structure 22 and the refractive index of the ultra-thin glass 21 is less than or equal to 0.02.

[0029] During the implementation and application process, the embodiment of the present application sets a protective layer 20 on the light-emitting side of the panel body 10, and the protective layer 20 includes ultra-thin glass 21 and a protective structure 22, wherein the protective structure 22 covers the side 203 of the ultra-thin glass 21, which can provide protection for the position at the edge of the panel body 10 that is not covered by the ultra-thin glass 21, thereby reducing the probability of the ultra-thin glass 21 breaking; at the same time, the absolute value of the difference between the refractive index of the protective structure 22 and the refractive index of the ultra-thin glass 21 is less than or equal to 0.02, thereby making the optical properties between the protective structure 22 and the ultra-thin glass 21 tend to be consistent, and the boundary line between the protective structure 22 and the ultra-thin glass 21 can also enter the display area of ​​the display panel and cannot be seen. On the basis of ensuring the display effect of the display panel, the border width of the display panel can be effectively reduced.

[0030] In one embodiment of the present application, the display panel includes a display area and a non-display area located on at least one side of the display area, and the side surface is located within the display area.

[0031] In an embodiment of the present application, one end of the protection structure away from the side surface is flush with an edge of the panel body.

[0032] In one embodiment of the present application, orthographic projections of the plurality of side surfaces on the panel body are arranged around the center of the panel body.

[0033] In one embodiment of the present application, the display area includes a bending sub-area, and the ultra-thin glass is provided with a groove located in the bending sub-area on the first surface, and the protective structure is also filled in the groove.

[0034] In one embodiment of the present application, the width of the groove at a side away from the panel body is smaller than the width of the groove at a side close to the panel body.

[0035] In one embodiment of the present application, the display panel further includes a first adhesive layer and a cover plate arranged on a side of the protective layer away from the panel body, and the cover plate is bonded to a side of the protective layer away from the panel body through the first adhesive layer.

[0036] In one embodiment of the present application, a surface of the protective layer away from the panel body is a plane.

[0037] In one embodiment of the present application, the display panel further includes a second adhesive layer disposed between the protective layer and the panel body, and the protective layer is bonded to the panel body via the second adhesive layer.

[0038] In one embodiment of the present application, the protection structure also covers the first surface.

[0039] In one embodiment of the present application, the panel body includes a substrate, a light-emitting functional layer provided on the substrate, and a color filter layer provided on a side of the light-emitting functional layer away from the substrate;

[0040] The light-emitting functional layer includes a plurality of light-emitting parts, and the color filter layer includes a plurality of color resist blocks corresponding to the plurality of light-emitting parts, and the color of the color resist blocks is the same as the light-emitting color of the corresponding light-emitting parts.

[0041] In one embodiment of the present application, a distance from the side surface to an edge of the panel body along a direction perpendicular to the side surface is greater than or equal to 0.05 mm.

[0042] In one embodiment of the present application, the display panel further includes a backplane, a buffer layer, and a support layer arranged on the side of the panel body away from the protective layer, the backplane is located between the panel body and the buffer layer, and the buffer layer is located between the backplane and the support layer.

[0043] Specifically, please continue to refer to Figure 1. The display panel provided in the embodiment of the present application includes a panel body 10, 30 arranged on the back side of the panel body 10, a protective layer 20 arranged on the light-emitting side of the panel body 10, a second adhesive layer 52 arranged between the panel body 10 and the protective layer 20, a cover plate 41 arranged on the side of the protective layer 20 away from the panel body 10, and a first adhesive layer 51 arranged between the cover plate 41 and the protective layer 20.

[0044] It can be understood that the light-emitting side and the back side of the panel body 10 are two opposite sides of the panel body 10 , and the light-emitting side is the side of the panel body 10 that displays and emits light.

[0045] In one embodiment, both the first adhesive layer 51 and the second adhesive layer 52 may include OCA optical adhesive layers.

[0046] In one embodiment, the panel body 10 includes a substrate, a light-emitting functional layer disposed on the substrate, and a color filter layer disposed on a side of the light-emitting functional layer away from the substrate; wherein the light-emitting functional layer includes multiple light-emitting portions, and the color filter layer includes multiple color blocks disposed corresponding to the multiple light-emitting portions, and the color of the color blocks is the same as the color of the corresponding light-emitting portions. That is, the panel body 10 provided in this embodiment of the application adopts a depolarizer (Pol-less) architecture. By disposing a color filter layer within the panel body 10 to achieve an anti-reflective effect, the polarizer can be eliminated, effectively reducing the thickness of the display panel. However, since the polarizer coverage is reduced on the light-emitting side of the panel body 10, the protective effect of the panel body 10 is reduced, especially at the edge of the panel body 10.

[0047] In an embodiment of the present application, please refer to Figures 3 and 4. The protective layer 20 is located on the light-emitting side of the panel body 10, and the protective layer 20 includes ultra-thin glass 21 and a protective structure 22. The ultra-thin glass 21 includes a first surface 201 close to the panel body 10, a second surface 202 of the ultra-thin glass 21 away from the panel body 10, and multiple side surfaces 203 connected to the first surface 201. Further, the multiple side surfaces 203 are connected between the first surface 201 and the second surface 202, and the orthographic projection of the side surface 203 on the panel body 10 deviates from the center of the panel body 10. Further, the orthographic projection of the side surface 203 on the panel body 10 is located at the edge of the panel body 10 close to the center of the panel body 10, and the orthographic projections of the multiple side surfaces 203 on the panel body 10 are arranged around the center of the panel body 10.

[0048] The protective structure 22 covers at least multiple side surfaces 203 of the ultra-thin glass 21. Compared with the related technologies shown in Figures 1 and 2, the side surfaces 203 of the ultra-thin glass 21 can be covered, thereby increasing the coverage area at the edge of the panel body 10, improving the protection effect of the side edges of the panel body 10, and improving the yield rate of the display panel.

[0049] Furthermore, since the side surface 203 of the ultra-thin glass 21 is retracted relative to the edge of the panel body 10 , the probability of the ultra-thin glass 21 being broken during the cutting process can be reduced.

[0050] In the embodiment of the present application, the absolute value of the difference between the refractive index of the protective structure 22 and the refractive index of the ultra-thin glass 21 is less than or equal to 0.02, so that the optical properties of the protective structure 22 are the same as or tend to be consistent with the optical properties of the ultra-thin glass 21, and thus there is no optical difference when light passes through the protective structure 22 and the ultra-thin glass 21; furthermore, the embodiment of the present application can set the interface between the protective structure 22 and the ultra-thin glass 21 within the display area of ​​the display panel, and the interface is not visible during the display process of the display panel, which can effectively reduce the border width of the display panel.

[0051] In one embodiment, referring to Figure 5, the display panel includes a display area 101 and a non-display area 102 located on at least one side of the display area 101, and the side surface 203 is located in the display area 101, and the interface between the protective structure 22 and the ultra-thin glass 21 is not visible during the display process of the display panel; that is, the protective structure 22 covering the side surface 203 is at least partially located in the display area 101. Due to the fitting tolerance and the reserved distance for cutting, the side surface 203 of the ultra-thin glass 21 needs to maintain a certain distance from the edge of the display panel. Therefore, when the side surface 203 of the ultra-thin glass 21 is set in the display area 101 in the embodiment of the present application, the edge of the display panel can also be moved in the direction of the display area 101 to reduce the distance between the edge of the display panel and the display area 101, that is, reduce the width of the non-display area 102, and reduce the border width of the display panel, which is conducive to realizing a narrow-border display panel.

[0052] In other embodiments of the present application, referring to FIG. 3 , the difference from the embodiment shown in FIG. 5 is that the side surface 203 of the ultra-thin glass 21 may also be located in the non-display area 102 .

[0053] The display panel further includes a shading member 42 disposed on a side of the cover plate 41 close to the panel body 10 , and the shading member 42 is located in the non-display area 102 , and can shield light and devices in the display panel.

[0054] In one embodiment, the refractive index of the ultra-thin glass 21 may be greater than or equal to 1.5 and less than or equal to 1.51, and the refractive index of the protective structure 22 may be greater than or equal to 1.5 and less than or equal to 1.52, and the absolute value of the difference between the refractive index of the protective structure 22 and the refractive index of the ultra-thin glass 21 is less than or equal to 0.02; optionally, the material of the protective structure 22 may include a resin material, such as polyimide or polymethyl methacrylate.

[0055] It should be noted that the protective structure 22 provided in the embodiment of the present application cannot be prepared using OCA optical glue or polyethylene terephthalate material. Since the optical properties of OCA optical glue and polyethylene terephthalate material are quite different from those of the ultra-thin glass 21, such as the refractive index difference is large, therefore, if the side 203 of the ultra-thin glass 21 is set in the display area 101, the interface between the ultra-thin glass 21 and the OCA optical glue and polyethylene terephthalate material will be visible, which will seriously affect the display effect of the display panel.

[0056] In one embodiment, referring to FIG. 3 , the display area 101 of the display panel includes a bending sub-area 1011 , and the display panel can be bent at the location of the bending sub-area 1011 to achieve a bendable display panel. The ultra-thin glass 21 is provided with a groove 211 on the first surface 201 located within the bending sub-area 1011 , and a protective structure 22 is also filled within the groove 211 . In this embodiment of the present application, the groove 211 is provided at the location of the ultra-thin glass 21 in the bending sub-area 1011 to improve the bending performance of the ultra-thin glass 21 , and the protective structure 22 is filled within the groove 211 , thereby reducing the probability of the display panel being marked by grooving at the groove 211 , and at the same time, improving the support performance of the display panel at the groove 211 .

[0057] In one embodiment, the elastic modulus of the protection structure 22 may be smaller than the elastic modulus of the ultra-thin glass 21 , thereby improving the support performance of the display panel at the groove 211 while also improving the bending performance of the display panel.

[0058] In one embodiment, the width of the groove 211 away from the panel body 10 is smaller than the width of the groove 211 close to the panel body 10, that is, the cross-sectional shape of the groove 211 in the direction perpendicular to the panel body 10 includes a trapezoid, and the protective structure 22 is filled in the groove 211, and the absolute value of the difference between the refractive index of the protective structure 22 and the refractive index of the ultra-thin glass 21 is less than or equal to 0.02, thereby avoiding the optical effect similar to the microlens structure generated during the filling of the groove 211 due to the excessive difference in refractive index between the protective structure 22 and the ultra-thin glass 21, thereby avoiding the display panel from having a large optical difference with other areas in the bending sub-area 1011, thereby improving the display uniformity of the display panel.

[0059] In other embodiments of the present application, if the cross-sectional shape of the groove 211 is other shapes, such as a rectangle, the refractive index of the protective structure 22 in the embodiment of the present application is close to or equal to the refractive index of the ultra-thin glass 21, which can also prevent the interface at the side wall of the groove 211 from being visible in the display panel, thereby improving the display effect of the display panel.

[0060] Furthermore, in one embodiment, the protective structure 22 also covers the first surface 201 of the ultra-thin glass 21, that is, the protective structure 22 can continuously cover the side surface 203 and the first surface 201 of the ultra-thin glass 21 and fill the groove 211 to form a semi-enclosed structure for the ultra-thin glass 21, with only the second surface 202 of the ultra-thin glass 21 exposed. This can avoid the phenomenon of bubbles that are easily generated due to the full coverage of the ultra-thin glass 21 during the manufacturing process, thereby improving the display effect of the display panel.

[0061] The side of the protection layer 20 close to the panel body 10 is bonded to the panel body 10 via the second adhesive layer 52 , and the cover plate 41 is bonded to the second surface 202 of the ultra-thin glass 21 via the first adhesive layer 51 .

[0062] It should be noted that the surface of the protective structure 22 covering the side surface 203 of the ultra-thin glass 21 away from the panel body 10 is flush with the surface of the ultra-thin glass 21 away from the panel body 10, that is, the side of the protective layer 20 away from the panel body 10 is a plane. Therefore, when the first adhesive layer 51 is bonded to the second surface 202, no interface extending along the direction of the panel body 10 close to the protective layer 20 will be formed at the side surface 203 of the ultra-thin glass 21, thereby avoiding optical anomalies at the side surface 203 when the side surface 203 is located in the display area 101.

[0063] In one embodiment, since the first adhesive layer 51 is made of OCA optical adhesive, the optical properties between it and the ultra-thin glass 21 are quite different, and the second surface 202 is flat, it is possible to avoid the appearance of an interface between the ultra-thin glass 21 and the first adhesive layer 51 along the thickness direction of the display panel, and thus avoid the appearance of a visible interface between the ultra-thin glass 21 and the first adhesive layer 51 in the display panel, thereby improving the display effect of the display panel.

[0064] In one embodiment of the present application, please refer to Figure 3, the end of the protective structure 22 away from the side 203 is flush with the edge of the panel body 10, that is, the protective structure 22 can completely cover the edge of the panel body 10, so as to effectively improve the protective effect of the protective layer 20 on the panel body 10.

[0065] Furthermore, the edges of the cover plate 41 , the protection layer 20 , the panel body 10 , and the back plate 30 are all aligned.

[0066] In another embodiment of the present application, please refer to Figure 6, the end of the protective structure 22 away from the side 203 is located on the side close to the center of the panel body 10 and the edge of the panel body 10, that is, the end of the protective structure 22 away from the side 203 is retracted relative to the edge of the panel body 10.

[0067] Furthermore, the edges of the cover plate 41 , the panel body 10 , and the back plate 30 are all aligned.

[0068] In another embodiment of the present application, please refer to Figure 7, the end of the protective structure 22 away from the side 203 is flush with the edge of the panel body 10, that is, the protective structure 22 can completely cover the edge of the panel body 10, so as to effectively improve the protective effect of the protective layer 20 on the panel body 10.

[0069] Furthermore, the edges of the protection layer 20 , the panel body 10 , and the back plate 30 are all aligned, and the edge of the cover plate 41 is retracted relative to the edge of the protection layer 20 .

[0070] In another embodiment of the present application, please refer to Figure 8. The difference between this embodiment and the embodiment shown in Figure 3 is that the display panel also includes a buffer layer 61 arranged on the side of the back panel 30 away from the panel body 10, and a support layer 62 arranged on the side of the buffer layer 61 away from the back panel 30.

[0071] The material of the buffer layer 61 may include at least one of silicon oxide, silicon nitride, and silicon oxynitride. For example, the buffer layer 61 may include a structure in which silicon oxide layers and silicon nitride layers are alternately stacked. The material of the support layer 62 may include a carbon fiber material, so that the back side of the panel body 10 has sufficient stress buffering and support functions and has good bending performance.

[0072] Continuing from the above, in one embodiment, the distance between the side surface 203 and the edge of the panel body 10 along a direction parallel to the panel body 10 is greater than or equal to 0.05 mm, so as to avoid undesirable phenomena such as cracking of the ultra-thin glass 21 during the cutting process of the display panel; further, the distance between the side surface 203 and the edge of the panel body 10 along a direction parallel to the panel body 10 is greater than or equal to 0.2 mm.

[0073] In addition, the embodiments of the present application also provide a method for manufacturing the display panel described in the above embodiments.

[0074] Specifically, in one embodiment, referring to FIG. 3 , FIG. 9 , and FIG. 10 to FIG. 13 , the method for manufacturing the display panel includes:

[0075] As shown in FIG9 , a protective layer motherboard 200 is provided. The protective layer motherboard 200 includes an ultra-thin glass 21 and a protective cover layer 220 covering the ultra-thin glass 21. The ultra-thin glass 21 includes a first surface 201 and a second surface 202 disposed opposite to each other, and a plurality of side surfaces 203 connected between the first surface 201 and the second surface 202. The protective cover layer 220 continuously covers the first surface 201 and the plurality of side surfaces 203 of the ultra-thin glass 21, and does not cover the second surface 202 of the ultra-thin glass 21, so as to avoid the generation of bubbles during the process of simultaneously covering the ultra-thin glass 21.

[0076] The first release film 71 and the first protective film 72 are respectively attached to the opposite sides of the protective layer motherboard 200; wherein, the first release film 71 is attached to the side of the ultra-thin glass 21 with the second surface 202, and the first protective film 72 is attached to the side of the ultra-thin glass 21 with the first surface 201.

[0077] The protective layer motherboard 200 is bonded to the cover motherboard 410; wherein, the first release film 71 is first removed, and the first adhesive material layer 510 is used to bond the side of the protective layer motherboard 200 with the first release film 71 removed to the cover motherboard 410, as shown in FIG10 .

[0078] A light shielding layer 420 is disposed on a side of the cover motherboard 410 close to the protection layer motherboard 200 .

[0079] Next, the first protective film 72 on one side of the protective layer motherboard 200 is removed, and a second adhesive material layer 520 is attached to the side of the protective layer motherboard 200 away from the cover motherboard 410, and a second protective film 73 is provided on the side of the second adhesive material layer 520 away from the protective layer motherboard 200, as shown in Figure 11.

[0080] Then, the second protective film 73 is removed, and the panel main motherboard 100 and the backplane motherboard 300 are sequentially attached to the side of the second adhesive material layer 520 away from the protective layer motherboard 200 , as shown in FIG. 12 .

[0081] Next, cutting is performed along the first cutting line 81 as shown in FIG12 to obtain the display panel as shown in FIG3 , wherein the first cutting line 81 is spaced apart from the ultra-thin glass 21 in the protective layer motherboard 200 to prevent the ultra-thin glass 21 from breaking during cutting, and after cutting, the edges of the panel body 10, protective layer 20, back panel 30, and cover panel 41 as shown in FIG3 are all aligned.

[0082] In another embodiment of the present application, referring to FIG. 6 and FIG. 14 to FIG. 17 , a method for manufacturing a display panel includes:

[0083] First, the panel main body motherboard 100 and the backplane motherboard 300 as shown in FIG. 14 are cut, specifically, they can be cut along the second cutting line 82 to obtain the panel main body 10 and the backplane 30 as shown in FIG. 6 .

[0084] A protective layer 20 as shown in Figure 15 is provided, and a second release film 74 and a third protective film 75 are respectively attached to opposite sides of the protective layer 20, wherein the side of the protective layer 20 having a first surface 201 is adhered to the third protective film 75, and the side of the protective layer 20 having a second surface 202 is adhered to the second release film 74.

[0085] Next, the second release film 74 is removed, and the side of the protective layer 20 where the second release film 74 is removed is attached to the cover plate 41 , as shown in FIG. 16 .

[0086] Then, the third protective film 75 is removed, and the second adhesive layer 52 is attached to the side of the protective layer 20 away from the cover plate 41 , and the fourth protective film 76 is attached to the side of the second adhesive layer 52 away from the protective layer 20 .

[0087] Next, the fourth protective film 76 is removed, and the panel body 10 and the back panel 30 as shown in Figure 14 are attached to the side of the second adhesive layer 52 away from the protective layer 20, and the panel body 10 is located on the side of the second adhesive layer 52 away from the protective layer 20, and the back panel 30 is located on the side of the panel body 10 away from the second adhesive layer 52, as shown in Figure 6.

[0088] In another embodiment of the present application, referring to FIG. 7 and FIG. 18 to FIG. 21 , a method for manufacturing a display panel includes:

[0089] A protective layer motherboard 200 as shown in Figure 18 is provided, and a third release film 77 and a fifth protective film 78 are respectively attached to two opposite sides of the protective layer motherboard 200; wherein, the third release film 77 is attached to the side of the ultra-thin glass 21 having the first surface 201, and the fifth protective film 78 is attached to the side of the ultra-thin glass 21 having the second surface 202.

[0090] The third release film 77 on one side of the protective layer motherboard 200 is removed, and a second adhesive material layer 520 is attached to the side of the protective layer motherboard 200 where the third release film 77 is removed, and a second protective film 73 is attached to the side of the second adhesive material layer 520 away from the protective layer motherboard 200, as shown in Figure 19.

[0091] Next, remove the second protective film 73, and then attach the panel main motherboard 100 to the side of the second adhesive material layer 520 away from the protective layer motherboard 200, and attach the backplane motherboard 300 to the side of the panel main motherboard 100 away from the protective layer motherboard 200, as shown in Figure 20.

[0092] Then, cutting is performed along the third cutting line 83 shown in Figure 21, wherein the third cutting line 83 is spaced apart from the ultra-thin glass 21 in the protective layer motherboard 200 to avoid breakage of the ultra-thin glass 21 during cutting. After cutting, the edges of the panel body 10, the protective layer 20, and the back panel 30 are aligned as shown in Figure 7, and the edge of the cover plate 41 is retracted relative to the edge of the protective layer 20.

[0093] Next, the fifth protective film 78 is removed, and then the cover plate 41 is attached to the side of the protective layer 20 away from the panel body 10 , and the cover plate 41 is attached to the protective layer 20 via the first adhesive layer 51 , as shown in FIG. 7 .

[0094] In another embodiment of the present application, referring to FIG. 8 , FIG. 9 , and FIG. 22 to FIG. 27 , a method for manufacturing a display panel includes:

[0095] A protective layer motherboard 200 as shown in FIG9 is provided, and then the first release film 71 on one side of the protective layer motherboard 200 is removed, and a cover motherboard 410 is attached to the side of the protective layer motherboard 200 where the first release film 71 is removed, and the cover motherboard 410 is adhered to the protective layer motherboard 200 through the first adhesive material layer 510, as shown in FIG22.

[0096] Next, the first protective film 72 is removed, and a second adhesive layer 520 is attached to the side of the protective layer motherboard 200 away from the cover motherboard 410 , and a second protective film 73 is attached to the side of the second adhesive layer 520 away from the protective layer motherboard 200 , as shown in FIG. 23 .

[0097] Then, the second protective film 73 is removed, and the panel main motherboard 100 and the backplane motherboard 300 are sequentially attached to the side of the second adhesive material layer 520 away from the protective layer motherboard 200, as shown in FIG. 24 .

[0098] Furthermore, a stacked buffer layer motherboard 610 and a support layer motherboard 620 are provided, as shown in FIG25 .

[0099] The stacked buffer layer motherboard 610 and support layer motherboard 620 are attached to the side of the backplane motherboard 300 away from the panel main body motherboard 100, and the buffer layer motherboard 610 is located between the backplane motherboard 300 and the support layer motherboard 620, as shown in Figure 26.

[0100] Next, cutting is performed along the fourth cutting line 84 shown in Figure 27 to obtain the display panel shown in Figure 8, wherein the fourth cutting line 84 is spaced apart from the ultra-thin glass 21 in the protective layer motherboard 200 to avoid the ultra-thin glass 21 from breaking during cutting, and after cutting, the edges of the panel body 10, protective layer 20, back plate 30, cover plate 41, buffer layer 61 and support layer 62 as shown in Figure 8 are all aligned.

[0101] In summary, in the embodiment of the present application, a protective layer 20 is provided on the light-emitting side of the panel body 10, and the protective layer 20 includes an ultra-thin glass 21 and a protective structure 22, wherein the side surface 203 of the ultra-thin glass 21 is located at the edge of the panel body 10 close to the center of the panel body 10, and the protective structure 22 covers the side surface 203 of the ultra-thin glass 21. On the one hand, it provides protection for the position at the edge of the panel body 10 that is not covered by the ultra-thin glass 21, and on the other hand, it separates the ultra-thin glass 21 from the edge of the panel body 10 to prevent the ultra-thin glass 21 from breaking during the cutting process; at the same time, the absolute value of the difference between the refractive index of the protective structure 22 and the refractive index of the ultra-thin glass 21 is less than or equal to 0.02, thereby making the optical properties between the protective structure 22 and the ultra-thin glass 21 tend to be consistent, so that the boundary line between the protective structure 22 and the ultra-thin glass 21 also enters the display area of ​​the display panel and is invisible. On the basis of ensuring the display effect of the display panel, the border width of the display panel can be effectively reduced.

[0102] In addition, an embodiment of the present application further provides a display device, which includes the display panel described in the above embodiment.

[0103] In one embodiment, the display device provided in the embodiment of the present application may include a mobile phone, a computer, a television, a tablet, and other display devices.

[0104] It can be understood that the display device provided in the embodiment of the present application includes the display panel described in the above embodiment. Therefore, the display device has the same beneficial effects as the display panel described in the above embodiment, which will not be repeated here.

[0105] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0106] The above is a detailed introduction to a display panel and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, comprising: A panel body; A protective layer disposed on the light-emitting side of the panel body. The protective layer includes an ultra-thin glass and a protection structure. The ultra-thin glass includes a first surface close to the panel body side and a plurality of side surfaces connected to the first surface, and the protection structure at least covers a plurality of the side surfaces; Wherein, the orthographic projection of the side surface on the panel body deviates from the center of the panel body, and the absolute value of the difference between the refractive index of the protection structure and the refractive index of the ultra-thin glass is less than or equal to 0.

02.

2. The display panel according to claim 1, wherein, The display panel includes a display area and a non-display area located on at least one side of the display area, and the side surface is located in the display area.

3. The display panel according to claim 1, wherein, One end of the protection structure away from the side surface is flush with the edge of the panel body.

4. The display panel according to claim 1, wherein, The orthographic projections of a plurality of the side surfaces on the panel body are arranged around the center of the panel body.

5. The display panel according to claim 1, wherein, The display area includes a bent sub-area, and the ultra-thin glass is provided with a groove located in the bent sub-area on the first surface, and the protection structure also fills the groove.

6. The display panel according to claim 5, wherein, The width of the groove on the side away from the panel body is smaller than the width of the groove on the side close to the panel body.

7. The display panel according to claim 1, wherein, The display panel further includes a first adhesive layer and a cover plate disposed on the side of the protective layer away from the panel body, and the cover plate is adhered to the surface of the protective layer away from the panel body through the first adhesive layer.

8. The display panel according to claim 7, wherein, The surface of the protective layer away from the panel body is a plane.

9. The display panel according to claim 1, wherein, The display panel further includes a second adhesive layer disposed between the protective layer and the panel body, and the protective layer is adhered to the panel body through the second adhesive layer.

10. The display panel according to claim 1, wherein, The protection structure also covers the first surface.

11. The display panel according to claim 1, wherein, The panel body includes a substrate, a light-emitting functional layer disposed on the substrate, and a color filter layer disposed on the side of the light-emitting functional layer away from the substrate; Wherein, the light-emitting functional layer includes a plurality of light-emitting parts, the color filter layer includes a plurality of color resist blocks corresponding to the plurality of light-emitting parts, and the color of the color resist block is the same as the light-emitting color of the corresponding light-emitting part.

12. The display panel according to claim 1, wherein, The distance from the side surface along the direction perpendicular to the side surface to the edge of the panel body is greater than or equal to 0.05 mm.

13. The display panel according to claim 1, wherein, The display panel further includes a back plate, a buffer layer and a support layer disposed on the side of the panel body away from the protective layer. The back plate is located between the panel body and the buffer layer, and the buffer layer is located between the back plate and the support layer.

14. A display device, the display device includes a display panel, and the display panel includes: A panel body; A protective layer disposed on the light-emitting side of the panel body. The protective layer includes an ultra-thin glass and a protection structure. The ultra-thin glass includes a first surface close to the panel body side and a plurality of side surfaces connected to the first surface, and the protection structure at least covers a plurality of the side surfaces; Wherein, the orthographic projection of the side surface on the panel body deviates from the center of the panel body, and the absolute value of the difference between the refractive index of the protection structure and the refractive index of the ultra-thin glass is less than or equal to 0.

02.

15. The display device according to claim 14, wherein, The display panel includes a display area and a non-display area located on at least one side of the display area, and the side surface is located within the display area.

16. The display device according to claim 14, wherein, One end of the protection structure away from the side surface is flush with the edge of the panel body.

17. The display device according to claim 14, wherein, Orthogonal projections of a plurality of the side surfaces on the panel body are arranged around the center of the panel body.

18. The display device according to claim 14, wherein, The display area includes a bent sub-area, and the ultra-thin glass is provided with a groove located within the bent sub-area on the first surface, and the protection structure also fills the groove.

19. The display device according to claim 14, wherein, The protection structure also covers the first surface.

20. The display device according to claim 14, wherein, The panel body includes a substrate, a light-emitting functional layer provided on the substrate, and a color filter layer provided on a side of the light-emitting functional layer away from the substrate; Wherein, the light-emitting functional layer includes a plurality of light-emitting portions, the color filter layer includes a plurality of color-resist blocks corresponding to the plurality of light-emitting portions, and the color of the color-resist block is the same as the light-emitting color of the corresponding light-emitting portion.

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