Display panel and display device

Abstract

A display panel (100) and a display device, the display panel (100) having a display area (AA) and a non-display area (NA), a cutting channel (14) provided in the non-display area (NA), the display panel (100) including a base substrate (1), a first optical function layer (71) and a second optical function layer (72), the first optical function layer (71) being provided on one side of the base substrate (1), having an optical pattern (711) in the first optical function layer (71) in the display area (AA), and a non-edge line between the cutting channel (14) and an edge line of the first optical function layer (71) close to the cutting channel (14). A first distance of zero is provided, the second optical functional layer (72) is provided on the side of the first optical functional layer (71) away from the base substrate (1), the second optical functional layer (72) covers the optical pattern (711) of the first optical functional layer (71) and extends to the side of the base substrate (1) closer to the cutting channel (14), a second distance of non-zero is provided between the edge line of the second optical functional layer (72) closer to the cutting channel (14) and the cutting channel (14), the first distance is greater than the second distance, and the refractive index of the first optical functional layer (71) is different from the refractive index of the second optical functional layer (72).

Description

[Technical Field]

[0001] The present disclosure relates to the field of display technology, and more particularly to display panels and display devices. [Background technology]

[0002] Organic Light Emitting Display (OLED) has many advantages, such as self-luminance, high brightness, wide viewing angle, short response time, high sharpness and contrast, and the ability to create full color components of R, G, and B, and is gradually becoming the first choice for display devices. However, with the development of science and technology, the purpose-built demand for OLED display devices is also gradually increasing. Summary of the Invention

[0003] An object of the present disclosure is to provide a display panel and a display device that overcome the above-mentioned deficiencies of the prior art.

[0004] One aspect of the present disclosure provides a display panel having a display area and a non-display area, wherein a cutting channel is provided in the non-display area, the display panel including a base substrate, a first optical function layer, and a second optical function layer; a first optical function layer is provided on one side of the base substrate, and has an optical pattern in the first optical function layer in the display area, and a first distance that is non-zero is provided between an edge line of the first optical function layer that is close to the cutting channel and the cutting channel; a second optical functional layer is provided on a side of the first optical functional layer that is away from the base substrate, the second optical functional layer covers the optical pattern of the first optical functional layer and extends to a side of the base substrate that is closer to the cutting channel, and a non-zero second distance is provided between an edge line of the second optical functional layer that is closer to the cutting channel and the cutting channel, and the first distance is greater than the second distance; The refractive index of the first optical functional layer is different from the refractive index of the second optical functional layer.

[0005] In an exemplary embodiment of the present disclosure, the difference between the first distance and the second distance is 30 micrometers or greater.

[0006] In an exemplary embodiment of the present disclosure, the display panel further comprises a crack barrier structure; The crack barrier structure is provided on the side of the cutting channel closer to the display area, the first optical functional layer covers a portion of the crack barrier structure closer to the display area, and the second optical functional layer covers the entire crack barrier structure.

[0007] In an exemplary embodiment of the present disclosure, the first distance is substantially equal to the distance between an edge line of the display area near the cutting channel and the cutting channel, and the second optical functional layer extends to the edge of the cutting channel near the display area.

[0008] In an exemplary embodiment of the present disclosure, the display panel further comprises touch leads; The touch lead is provided between the base substrate and the first optical functional layer and is located in the non-display area, the first optical functional layer covers the touch lead, and the first optical functional layer is not provided in the portion of the non-display area where the touch lead is separated from the display area.

[0009] In an exemplary embodiment of the present disclosure, the first optical function layer includes a plurality of covering portions, and one covering portion covers one of the touch leads.

[0010] In an exemplary embodiment of the present disclosure, the non-display area includes a bind area, a bind pin is provided in the bind area, the touch lead is connected to the bind pin, and in the non-display area near one side of the bind area, the first optical function layer covers only the touch lead.

[0011] In an exemplary embodiment of the present disclosure, the refractive index of the second optical functional layer is greater than the refractive index of the first optical functional layer, the optical pattern is a recess, and at least a portion of the second optical functional layer is located within the recess.

[0012] In an exemplary embodiment of the present disclosure, the materials of the first optical functional layer and the second optical functional layer are both organic insulating materials, and the thickness of the second optical functional layer is greater than the thickness of the first optical functional layer.

[0013] In an exemplary embodiment of the present disclosure, the display panel further includes a display substrate; The display substrate is provided between the base substrate and the first optical function layer, and includes a plurality of sub-pixels, and the sub-pixels are provided opposite the recesses.

[0014] In an exemplary embodiment of the present disclosure, the display panel further includes a sealing layer group; a sealing layer group provided on a side of the display substrate that is away from the base substrate; A touch layer group is provided on the sealing layer group on a side thereof remote from the base substrate, and the first optical function layer is provided on the touch layer group on a side thereof remote from the base substrate.

[0015] In an exemplary embodiment of the present disclosure, the touch layer group includes a first touch layer, a touch insulating layer, and a second touch layer; a first touch layer provided on a side of the sealing layer group away from the base substrate; a touch insulating layer provided on a side of the first touch layer that is away from the base substrate; a second touch layer provided on a side of the touch insulating layer away from the base substrate; The touch leads include a first sub-touch lead, a second sub-touch lead, or a first sub-touch lead and a second sub-touch lead that are stacked and connected, and the first touch layer includes the first sub-touch lead, and the second touch layer includes the second sub-touch lead.

[0016] In an exemplary embodiment of the present disclosure, the non-display area includes a curved area, and the display panel further includes a third inorganic layer; A third inorganic layer is provided between the base substrate and the light-emitting layer group, a first groove is provided in the third inorganic layer, the orthogonal projection of the bending region onto the base substrate overlaps with the orthogonal projection of the first groove onto the base substrate, and the third inorganic layer is not provided in the bending region.

[0017] In an exemplary embodiment of the present disclosure, an edge line of the curved region that is close to the display region is a first edge line, the first optical functional layer and the second optical functional layer both extend into the curved region, a non-zero third distance is provided between the edge line of the first optical functional layer that is close to the first edge line and the first edge line, and a non-zero fourth distance is provided between the edge line of the second optical functional layer that is close to the first edge line and the first edge line, and the fourth distance is greater than the third distance.

[0018] In an exemplary embodiment of the present disclosure, an edge line of the curved region that is close to the display region is a first edge line, the first optical functional layer and the second optical functional layer both extend to the side of the curved region that is close to the display region, a non-zero third distance is provided between the edge line of the first optical functional layer that is close to the first edge line and the first edge line, a non-zero fourth distance is provided between the edge line of the second optical functional layer that is close to the first edge line and the first edge line, and the third distance is greater than the fourth distance.

[0019] In an exemplary embodiment of the present disclosure, the absolute value of the difference between the fourth distance and the third distance is 5 micrometers or more.

[0020] In an exemplary embodiment of the present disclosure, the display panel further includes a bind pin; A bind pin is provided in the non-display area, the first optical functional layer and the second optical functional layer extend to a side of the bind pin that is away from the base substrate, a non-zero fifth distance is provided between an edge line of the first optical functional layer that is close to the bind pin and an edge line of the bind pin that is close to the display area, and a non-zero sixth distance is provided between an edge line of the second optical functional layer that is close to the bind pin and an edge line of the bind pin that is close to the display area, and the sixth distance is greater than the fifth distance.

[0021] In an exemplary embodiment of the present disclosure, the absolute value of the difference between the sixth distance and the fifth distance is 5 micrometers or more.

[0022] In an exemplary embodiment of the present disclosure, the orthogonal projection of the edge line of the first optical functional layer onto the base substrate is set as a curve, and the orthogonal projection of the edge line of the second optical functional layer onto the base substrate is set as a curve.

[0023] In an exemplary embodiment of the present disclosure, the display panel further comprises a shielding layer; A shielding layer is provided on a side of the touch layer group that is away from the base substrate, and the shielding layer includes a first shielding portion, and the first shielding portion is located in the non-display area.

[0024] In an exemplary embodiment of the present disclosure, the display panel further comprises a reflective layer; A reflective layer is provided in the non-display area, and an orthogonal projection of the reflective layer onto the base substrate is located within an orthogonal projection of the first shielding portion onto the base substrate.

[0025] In an exemplary embodiment of the present disclosure, the reflective layer includes a first lead and a touch lead; a first lead provided between the base substrate and the first optical function layer and positioned in the non-display area; A touch lead is provided between the base substrate and the first optical function layer.

[0026] In an exemplary embodiment of the present disclosure, the first lead includes a gate line and / or a data line and / or a power line.

[0027] In an exemplary embodiment of the present disclosure, a light-transmitting portion is provided in a display area of ​​the display panel, and the shielding layer further includes a second shielding portion; The second shielding portion covers a non-light-emitting region around the light-transmitting portion.

[0028] In an exemplary embodiment of the present disclosure, the display panel further comprises a color film layer; The color film layer is provided on a side of the second optical function layer away from the base substrate, or on a side of the first optical function layer closer to the base substrate, and the color film layer includes a plurality of filter portions, which are provided opposite the sub-pixels.

[0029] Another aspect of the present disclosure provides a display device including any of the display panels described above.

[0030] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. [Brief explanation of the drawings]

[0031] The drawings herein are incorporated into the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the drawings in the following description are merely some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without paying creative labor. [Figure 1] FIG. 10 is a structural schematic diagram after multiple display panels are fabricated on the motherboard. [Figure 2] 1 is a schematic diagram of a region division structure of a display panel according to the present disclosure. [Figure 3] 3 is a schematic diagram of the structure of the display panel in FIG. 2 after being folded. [Figure 4] FIG. 2 is a diagram illustrating a configuration of an embodiment of a display area of ​​a display panel according to the present disclosure. [Figure 5] FIG. 2 is a schematic planar structural diagram of an embodiment of a touch layer group of a display panel of the present disclosure. [Figure 6] FIG. 6 is a cross-sectional view taken along line II in FIG. 5. [Figure 7] FIG. 2 is a diagram illustrating a configuration of an embodiment of a non-display area of ​​a display panel according to the present disclosure. [Figure 8] 3 is a schematic diagram showing the structure of a crack barrier structure, a first optical function layer, and a second optical function layer in a display panel of the present disclosure. FIG. [Figure 9] FIG. 9 is a cross-sectional view of FIG. [Figure 10] FIG. 10 is a configuration diagram of another exemplary embodiment of a display panel of the present disclosure. [Figure 11] FIG. 11 is a partial schematic plan view of FIG. [Figure 12] FIG. 2 is a configuration diagram of an embodiment of a touch lead, a first optical function layer, and a second optical function layer in a display panel of the present disclosure. [Figure 13] 10 is a configuration diagram of another exemplary embodiment of a touch lead, a first optical function layer, and a second optical function layer in a display panel of the present disclosure. FIG. [Figure 14] FIG. 13 is a schematic plan view of FIG. 12. [Figure 15] 10 is a diagram illustrating the configuration of a non-display area on the side closer to the bind pins of a display panel according to the present disclosure. [Figure 16] 1 is a configuration diagram of an embodiment of a curved region of a first optical function layer and a second optical function layer in a display panel of the present disclosure. [Figure 17] 10A and 10B are configuration diagrams of other exemplary embodiments of the first optical functional layer and the second optical functional layer in the curved region of the display panel of the present disclosure. [Figure 18] 1 is a schematic diagram of a cross-sectional structure of a bending region of a display panel of the present disclosure, the side of the bending region being closer to the display panel. [Figure 19] 10A and 10B are configuration diagrams of other exemplary embodiments of the first optical functional layer and the second optical functional layer in the display panel of the present disclosure. [Figure 20] FIG. 2 is a diagram illustrating the configuration of a shielding layer provided in a display panel of the present disclosure. [Figure 21] 3 is a configuration diagram of a first shielding portion provided in a display panel of the present disclosure. FIG. [Figure 22] 10A and 10B are block diagrams illustrating another exemplary embodiment of a display area of ​​a display panel according to the present disclosure. [Explanation of symbols]

[0032] 100, display panel, 10, display substrate, 1, base substrate, 2, driving backplate, 21, light-shielding layer, 22, buffer layer, 231, channel portion, 232, source connection portion, 233, drain connection portion, 24, gate insulating layer, 25, gate, 26, interlayer dielectric layer, 27, first connection conductor layer, 271, source, 272, drain, 28, planarization layer, 29, third inorganic layer, 291, first groove, 292, second groove, 30, organic material layer, 3, light-emitting substrate; 31, first electrode; 32, pixel-defining layer; 33, light-emitting layer group; 34, second electrode; 35, sub-pixel; 4, sealing layer group; 41, first inorganic layer; 42, organic layer; 43, second inorganic layer; 5, touch layer group, 51, first touch layer, 52, touch insulating layer, 53, second touch layer, 61, touch main body, 611, first touch unit, 6111, first touch electrode, 6112, first connection part, 612, second touch unit, 6121, second touch electrode, 6122, second connection part, 62, touch lead, 621, first touch lead, 622, second touch lead, 71, first optical function layer, 711, optical pattern, 712, covering portion, 72, second optical function layer, 8, shielding layer, 81, first shielding portion, 82, second shielding portion, 9, color film layer, 10, display driving chip, 11, flexible printed circuit board, 12, touch driving chip, 13, cover plate, 14, cutting channel, 15, bind pin, 16, Crack barrier structure, 161, Barrier ring, 17, reflective layer, 171, first lead, 18, light-transmitting portion, AA, display area; NA, non-display area; CB, side area; CB1, first side area; CB2, second side area; CB3, third side area; CB4, fourth side area; BEND, bend area; BOD, bind area; X, first direction; Y, second direction. DETAILED DESCRIPTION OF THE INVENTION

[0033] Next, exemplary embodiments will be described in more detail with reference to the drawings. However, the exemplary embodiments may be implemented in various forms and should not be understood as being limited to the embodiments described herein. On the contrary, these embodiments are provided so that this disclosure will be comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. Since the same reference numerals in the figures represent the same or similar structures, detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0034] Although relative terms such as "above" and "below" are used herein to describe the relative relationship of one component of an icon to another, these terms are used herein for convenience only, e.g., in accordance with the examples shown in the drawings. If the device of the icon is flipped upside down, it will be understood that the component described "above" becomes the component located "below." When a structure is referred to as being "above" another structure, it can mean that the structure is integrally formed with the other structure, that the structure is mounted "directly" on the other structure, or that the structure is mounted "indirectly" on the other structure.

[0035] The terms "a," "one," "the," "the," and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "comprise" and "have" are used to denote an open inclusion and mean that other elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first," "second," "third," etc. are used as indicative terms only and do not imply a quantitative limitation on the subject.

[0036] In this application, unless otherwise clearly specified or limited, the term "connected" should be understood in a broad sense, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection, and may be directly connected or indirectly connected via an intermediate medium. "And / or" is merely a relational relationship describing related objects, and indicates that three relations, for example, A and / or B, can exist, and it can indicate that A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in the text generally indicates that the related objects before and after it are in an OR relationship.

[0037] An embodiment of the present disclosure provides a display panel 100, and as shown in FIGS. 1 to 21 , the display panel 100 has a display area AA and a non-display area, and a cutting channel 14 is provided in the non-display area. The display panel 100 includes a base substrate 1, a first optical function layer 71, and a second optical function layer 72, and the first optical function layer 71 is provided on one side of the base substrate 1, and has an optical pattern 711 on the first optical function layer 71 in the display area AA, and a non-zero gap is formed between the edge line of the first optical function layer 71 near the cutting channel 14 and the cutting channel 14. A first distance is provided, the second optical functional layer 72 is provided on the side of the first optical functional layer 71 away from the base substrate 1, the second optical functional layer 72 covers the optical pattern 711 of the first optical functional layer 71 and extends to the side of the base substrate 1 closer to the cutting channel 14, and a non-zero second distance is provided between the edge line of the second optical functional layer 72 closer to the cutting channel 14 and the cutting channel 14, the first distance is greater than the second distance, and the refractive index of the first optical functional layer 71 is different from the refractive index of the second optical functional layer 72.

[0038] In the display panel 100 of the present disclosure, a non-zero first distance is provided between the edge line of the first optical functional layer 71 near the cutting channel 14 and the cutting channel 14, and a non-zero second distance is provided between the edge line of the second optical functional layer 72 near the cutting channel 14 and the cutting channel 14. This means that the first optical functional layer 71 and the second optical functional layer 72 are not provided in the cutting channel 14, and carbon ash is not generated during cutting, which prevents connection of two adjacent conductive wires in the display panel 100 and prevents display defects. Furthermore, the second optical functional layer 72 covers the optical pattern 711 of the first optical functional layer 71 and extends to the side of the base substrate 1 near the cutting channel 14. In the portion near the cutting channel 14, the second optical functional layer 72 protrudes from the first optical functional layer 71. The second optical functional layer 72 is a single layer, and the step of the second optical functional layer 72 is small, making it less likely to generate bubbles after a protective film is attached. In addition, the first optical functional layer 71 in the display area AA has an optical pattern 711, and the second optical functional layer 72 covers the optical pattern 711 of the first optical functional layer 71, and the first optical functional layer 71 and the second optical functional layer 72 have different refractive indices, so that the front emission efficiency of the display panel 100 can be adjusted by the first optical functional layer 71 and the second optical functional layer 72.

[0039] As shown in FIG. 1, during the manufacturing process of the display panel 100, multiple display panels 100 are manufactured on one large motherboard, and then cut along cutting channels 14 to form multiple individual display panels 100.

[0040] 2, the display panel 100 may include a display area AA that displays an image and a non-display area NA that does not display an image, and display and touch functions can be realized in the display area AA. The non-display area NA may include a side area CB that may be arranged to surround the display area AA, and the display panel 100 may also include a bending area BEND for bending and a binding area BOD for binding. The bending area BEND is connected to the side area CB, and the binding area BOD is connected to the bending area BEND.

[0041] The side region CB may include a first side region CB1, a second side region CB2, a third side region CB3, and a fourth side region CB4. The first side region CB1 and the second side region CB2 are provided on opposite sides of the display area AA in the first direction X. The third side region CB3 and the fourth side region CB4 are provided on opposite sides of the display area AA in the second direction Y. A bind region BOD is provided on the side of the fourth side region CB4 away from the display area AA. Specifically, the bend region BEND is connected to the fourth side region CB4, and the bind region BOD is connected to the bend region BEND, i.e., the bend region BEND is connected between the bind region BOD and the fourth side region CB4.

[0042] As shown in FIG. 3, the display panel 100 may be folded in the bending area BEND so that the binding area BOD is folded in a direction away from the display surface of the display area AA.

[0043] As shown in FIG. 7 , bind pins 15 are provided in the bind area BOD, and external devices can be attached (or can be attached) to the bind pins 15. The external devices can include a display driver chip 10, a touch driver chip 12, a flexible printed circuit board 11, a rigid printed circuit board, etc. Furthermore, a crystal-coated film (Chip-On-Flex, or Chip-On-Film, COF), a connector, etc. can also be attached to the bind pins 15. One or more external devices can be attached to the bind area BOD. The display driver chip 10 can be disposed in the bind area BOD of the display panel 100, and the printed circuit board can be attached to an edge of the bind area BOD. In this case, the display panel 100 can include bind pins 15 connected to the display driver chip 10 and bind pins 15 connected to the printed circuit board. In another embodiment, the display driver chip 10 can be attached to a crystal-coated film that can be attached to the bind area BOD of the display panel 100.

[0044] As shown in Fig. 2, the display driver chip 10 can be attached to the same surface as the display surface of the display panel 100. The touch driver chip 12 can be attached to the same surface as the display surface of the flexible printed circuit board 11. As shown in Fig. 3, when the bending region BEND is reversely bent, the display driver chip 10 and the touch driver chip 12 are located on the side away from the display surface of the display panel 100. The touch driver chip 12 can be bonded to the flexible printed circuit board 11 via anisotropic conductive paste or ultrasonic bonding.

[0045] The touch driving chip 12 may include an integrated circuit that drives the touch layer group 5, and may also include an integrated circuit that receives touch signals. In this embodiment, the integrated circuits may be a touch driving integrated circuit that generates and provides touch drive signals and a touch induction integrated circuit that receives touch signals, but the present invention is not limited thereto. The touch driving chip 12 is connected to the bind pins 15 of the display panel 100 to supply touch drive signals to the bind pins 15 and receive touch induction signals fed back from the touch layer group 5.

[0046] The display panel 100 includes a base substrate 1, which may be an OLED (Organic Electroluminescence Display) display substrate, a QLED (Quantum Dot Light Emitting Diode) display substrate, or the like, and a display substrate 10. The display substrate 10 has a light-emitting side and a non-light-emitting side, and the light-emitting side and the non-light-emitting side are arranged opposite each other. A screen can be displayed on the light-emitting side, and one side of the display screen is the display surface.

[0047] The following description will be given taking an OLED display substrate as an example.

[0048] As shown in Figure 4, the display substrate 10 includes a driving backplate 2 and an emitting substrate 3, with the driving backplate 2 being provided on one side of the base substrate 1 and the emitting substrate 3 being provided on the side of the driving backplate 2 away from the base substrate 1.

[0049] As shown in FIG. 4, the driving backplate 2 may include a plurality of driving circuits arranged in an array, the light emitting substrate 3 may include a plurality of light emitting devices arranged in an array, and the driving circuits may drive the light emitting devices to emit light.

[0050] The material of the base substrate 1 can include an inorganic material, such as glass, quartz, or metal. The material of the base substrate 1 can also include an organic material, such as a resin-based material such as polyimide, polycarbonate, polyacrylic ester, polyetherimide, polyethersulfone, polyethylene terephthalate, or polyethylene naphthalate. The base substrate 1 can be formed of multiple material layers, such as a multilayer substrate layer, and the substrate layer material can be any of the materials described above. Of course, the base substrate 1 can also be formed in a single layer and can be any of the materials described above.

[0051] As shown in Figure 4, a light-shielding layer 21 can be provided on one side of the base substrate 1. Light incident on the active layer from the base substrate 1 generates photocarriers in the active layer, which then significantly affects the characteristics of the thin film transistor and ultimately affects the display quality of the display device. The light-shielding layer 21 can block light incident from the base substrate 1, preventing it from affecting the characteristics of the thin film transistor and the display quality of the display device. Depending on the type of thin film transistor, the light-shielding layer 21 can be omitted.

[0052] A buffer layer 22 may be formed on the side of the light-shielding layer 21 that is away from the base substrate 1. The buffer layer 22 serves to block water vapor and impurity ions in the base substrate 1 (especially organic materials) and to increase hydrogen ions for the active layer that will be formed later. The buffer layer 22 is made of an insulating material and can insulate the light-shielding layer 21 from the active layer. The buffer layer 22 may include silicon nitride, silicon oxide, or silicon nitride. The buffer layer 22 may be omitted depending on the type of base substrate 1 and process conditions.

[0053] An active layer is provided on the side of buffer layer 22 away from base substrate 1, and the active layer can include a channel portion 231 and conductor portions provided on both ends of channel portion 231, one of the two conductor portions being a source connection portion 232 and the other being a drain connection portion 233. A gate insulating layer 24 is provided on the side of the active layer away from base substrate 1, and a gate layer is provided on the side of gate insulating layer 24 away from base substrate 1, and the gate layer can include a gate 25 and a gate line (not shown).

[0054] An interlayer dielectric layer 26 is provided on the side of the gate layer away from the base substrate 1, and vias are provided in the interlayer dielectric layer 26 that communicate with the source connection portion 232 and the drain connection portion 233.A first connecting conductor layer 27 that can include a source 271, a drain 272, and a data line (not shown) is provided on the side of the interlayer dielectric layer 26 that is away from the base substrate 1, and the data line may be connected to the source 271, or part of the data line may be the source 271.The source 271 is connected to the source connection portion 232 via a via on the interlayer dielectric layer 26, and the drain 272 is connected to the drain connection portion 233 via a via in the interlayer dielectric layer 26.

[0055] In another embodiment of the present disclosure, a passivation layer is provided on the side of the first connecting conductor layer 27 that is separated from the base substrate 1, and a via is also provided in the passivation layer. A second connecting conductor layer is provided on the side of the passivation layer that is separated from the base substrate 1. The second connecting conductor layer may include a second source and / or a second drain, and the second source and the second drain are connected to the source and the drain through the via in the passivation layer. Of course, a third connecting conductor layer, a fourth connecting conductor layer, etc. may also be provided as necessary.

[0056] 4, a planarization layer 28 is provided on the side of the first connection conductor layer 27 that is away from the base substrate 1, and a via is provided in the planarization layer 28, and the via is connected to the drain 272. The channel portion 231, the gate 25, the source 271, and the drain 272 form a thin film transistor.

[0057] It should be noted that the thin film transistor described in this specification is a top-gate thin film transistor. In other exemplary embodiments of the present disclosure, the thin film transistor may be a bottom-gate or double-gate type, the specific structure of which is not described here. Furthermore, when a thin film transistor with reversed polarity is used or when the current direction during circuit operation is changed, the functions of the "source 271" and the "drain 272" may be interchanged. Therefore, in this specification, the "source 271" and the "drain 272" may be interchangeable.

[0058] Continuing to show in FIG. 4, the light-emitting substrate 3 is provided on the side of the planarization layer 28 away from the base substrate 1, and the light-emitting substrate 3 may include a first electrode 31, a pixel definition layer 32, a light-emitting layer group 33, and a second electrode 34.

[0059] Specifically, a first electrode 31 layer is provided on the side of the planarization layer 28 that is away from the base substrate 1, and the first electrode 31 layer includes a first electrode 31 provided in the display area AA and a first lead 171 provided in the non-display area NA, the first lead 171 is provided at a distance from the first electrode 31, the first electrode 31 is connected to the drain 272 of the driving backplate 2 through a via, and supplies a driving signal to the first electrode 31 through the drain 272, and the first electrode 31 may be an anode (pixel electrode).

[0060] A pixel definition layer 32 is provided on the side of the first electrode 31 that is away from the base substrate 1, and an opening is provided in the pixel definition layer 32, the opening being connected to the first electrode 31, and at least a portion of the first electrode 31 is not covered by the pixel definition layer 32.

[0061] An emitting layer group 33, at least a portion of which is located within the opening, is provided on the side of the pixel definition layer 32 that is away from the base substrate 1. A second electrode 34, which may be a cathode (common electrode), is provided on the side of the emitting layer group 33 that is away from the base substrate 1. The emitting layer group 33 within one opening emits light to form a sub-pixel 35 such that the orthogonal projection of the sub-pixel 35 onto the base substrate 1 is the orthogonal projection of the emitting layer group 33 within the opening onto the base substrate 1, and the display substrate 10 can include a plurality of sub-pixels 35.

[0062] The light-emitting layer group 33 includes a hole injection layer, a hole transport layer, an organic light-emitting layer, an electron transport layer, and an electron injection layer, which are stacked in this order, with the hole injection layer in contact with the first electrode 31 and the electron injection layer in contact with the second electrode 34. Of course, in other exemplary embodiments of the present disclosure, the light-emitting layer group 33 may include only a hole transport layer, a light-emitting layer, and an electron transport layer, and the light-emitting layer group 33 may have other structures, and the specific structure can be set as needed.

[0063] Holes are injected into the organic light-emitting layer from the first electrode 31 side, and electrons are injected into the organic light-emitting layer from the second electrode 34 side. Finally, the holes and electrons combine in the organic light-emitting layer to generate excitons. When the generated excitons relax from the excited state to the ground state, the OLED emits visible light.

[0064] The above is the specific configuration of the display substrate 10 in the display area AA, and in the non-display area NA, the data lines, gate lines and first lead lines 171 extend to the non-display area NA and are ultimately connected to the bind pins 15 in the bind area BOD.

[0065] A sealing layer group 4 is provided on the side of the second electrode 34 that is away from the base substrate 1. As shown in FIG. 4 , the sealing layer group 4 may be a plurality of layers and may include an organic layer 42 and an inorganic layer. Specifically, the sealing layer group 4 may include a first inorganic layer 41, an organic layer 42 provided on the side of the first inorganic layer 41 that is away from the base substrate 1, and a second inorganic layer 43 provided on the side of the organic layer 42 that is away from the base substrate 1. Materials for the first inorganic layer 41, the organic layer 42, and the second inorganic layer 43 will not be described here. Of course, the sealing layer group 4 may include more or fewer layers.

[0066] 4, in this embodiment, a touch layer group 5 is provided on the side of the encapsulation layer group 4 that is separated from the base substrate 1, and the touch layer group 5 may include a first touch layer 51, a touch insulating layer 52, and a second touch layer 53. The first touch layer 51 is provided on the side of the encapsulation layer group 4 that is separated from the base substrate 1, and may have a Ti / Al / Ti stacked structure, an ITO / Ag / ITO stacked structure, or the like. The touch insulating layer 52 is provided on the side of the first touch layer 51 that is separated from the base substrate 1, and the material of the touch insulating layer 52 may be a SiNx material. The second touch layer 53 is provided on the side of the touch insulating layer 52 that is separated from the base substrate 1, and may have a Ti / Al / Ti stacked structure, an ITO / Ag / ITO stacked structure, or the like. Of course, the materials and structures of the above-mentioned film layers are merely examples and can be selected and installed as needed. It may also include a barrier layer disposed between the sealing layer group 4 and the first touch layer 51, and the material of the barrier layer may be a SiNx material.

[0067] 5, in the display area AA, the first touch layer 51 and the second touch layer 53 are provided as a conductive mesh structure, which is a polygonal shape made up of a plurality of mesh lines, and each mesh corresponds to a sub-pixel 35. The orthogonal projection of the sub-pixel 35 onto the base substrate 1 is located within the orthogonal projection of the mesh onto the base substrate 1, which prevents the mesh lines from blocking light from the sub-pixel 35 and ensures the display effect of the display panel 100.

[0068] 5 and 6, the conductive mesh structure forms a touch body 61, which may be a mutual capacitance structure. The touch body 61 may include a plurality of first touch units 611 and a plurality of second touch units 612. The first touch units 611 and the second touch units 612 in the form of a metal mesh have the advantages of low resistance, small thickness, and fast response speed.

[0069] 5 and 6, the second touch unit 612 has a linear shape extending along the first direction X, and the plurality of second touch units 612 are arranged in order along the second direction Y. The first touch unit 611 has a linear shape extending along the second direction Y, and the plurality of first touch units 611 are arranged in order along the first direction X. Each first touch unit 611 includes a plurality of first touch electrodes 6111 arranged in order along the second direction Y and a first connection portion 6112, the plurality of first touch electrodes 6111 being spaced apart, and adjacent first touch electrodes 6111 being connected to each other via the first connection portion 6112. Each second touch unit 612 may include a plurality of second touch electrodes 6121 and a second connection portion 6122 arranged in sequence along the first direction X, where the plurality of second touch electrodes 6121 are spaced apart, and adjacent second touch electrodes 6121 are connected to each other via the second connection portion 6122.

[0070] In some exemplary embodiments, referring to Figures 5 and 6, the first touch electrode 6111, the second touch electrode 6121 and the second connecting portion 6122 are arranged in the same layer and can be formed by a single patterning process, the second touch electrode 6121 and the second connecting portion 6122 are an integral structure, the first connecting portion 6112 can be installed on a bridge layer to form a bridge structure, and a touch insulating layer 52 is arranged between the first connecting portion 6112 and the second connecting portion 6122.

[0071] 5, the second touch layer 53 may include a first touch electrode 6111, a second touch electrode 6121 (not shown), and a second connecting portion 6122, where the second touch electrode 6121 and the second connecting portion 6122 are integrally connected in the second touch layer 53. A gap is provided between the first touch electrode 6111, the second touch electrode 6121, and the second connecting portion 6122 due to a broken wire. The first touch layer 51 may include a first connecting portion 6112, where the first connecting portion 6112 is connected to two adjacent first touch electrodes 6111 through a via provided in the touch insulating layer 52, thereby achieving the purpose of integrally connecting a plurality of first touch electrodes 6111 arranged in sequence along the second direction Y.

[0072] Because the driving backplate 22 needs to turn on an electrical signal, the first touch electrode 6111, the second touch electrode 6121, and the second connecting portion 6122 also need to turn on an electrical signal, and the first touch electrode 6111, the second touch electrode 6121, and the second connecting portion 6122 are located farther away from the driving backplate 22 relative to the first touch layer 51, thereby reducing interference of electrical signals between the driving backplate 22 and the first touch electrode 6111, the second touch electrode 6121, and the second connecting portion 6122 and ensuring the display and touch effects of the display panel 100. Of course, in other exemplary embodiments of the present disclosure, the first touch layer 51 may include the first touch electrode 6111, the second touch electrode 6121, and the second connecting portion 6122, and the second touch layer 53 may include the first connecting portion 6112.

[0073] In another exemplary embodiment, the first touch electrode 6111, the first connection portion 6112, and the second touch electrode 6121 are arranged in the same layer and can be formed by a single patterning process, the first touch electrode 6111 and the first connection portion 6112 are an integral structure, the second connection portion 6122 can be installed on a bridge layer to form a bridge structure, and an insulating layer is installed between the first connection portion 6112 and the second connection portion 6122.

[0074] For example, the second touch layer 53 may include a first touch electrode 6111, a second touch electrode 6121, and a first connecting portion 6112, where the first touch electrode 6111 and the first connecting portion 6112 are integrally connected within the second touch layer 53, and gaps are provided between the second touch electrode 6121, the first touch electrode 6111, and the first connecting portion 6112 by disconnections in the metal mesh. The first touch layer 51 may include a second connecting portion 6122, where the second connecting portion 6122 is connected to two adjacent second touch electrodes 6121 through fourth vias provided on the touch insulating layer 52, thereby achieving the purpose of integrally connecting a plurality of second touch electrodes 6121 arranged in sequence along the first direction X. Of course, in other exemplary embodiments of the present disclosure, the first touch layer 51 may include a first touch electrode 6111, a second touch electrode 6121, and a first connection portion 6112, and the second touch layer 53 may also include a second connection portion 6122.

[0075] In some exemplary embodiments, the first touch electrode 6111 and the second touch electrode 6121 may have a diamond shape, such as a regular diamond, a horizontally elongated diamond, or a vertically elongated diamond. In some possible embodiments, the first touch electrode 6111 and the second touch electrode 6121 may have any one or more of a triangle, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons, and the present disclosure is not limited thereto.

[0076] The side region CB is provided with touch leads 62, which include a first sub-touch lead or a second sub-touch lead, or the first and second sub-touch leads stacked and connected, i.e., the touch leads 62 may have a single-layer structure including only the first or second sub-touch lead, or may have a two-layer structure including the first and second sub-touch leads stacked and connected. The first touch layer includes the first sub-touch lead arranged on the first touch layer, and the second touch layer includes the second sub-touch lead arranged on the second touch layer.

[0077] As shown in FIG. 5, the touch leads 62 may include a first touch lead 621, a second touch lead 622 (for clarity, different leads in the figure are distinguished using different line types).

[0078] The first ends of some of the first touch leads 621 are connected to one end of the first touch unit 611, and the second ends of the first touch leads 621 are led out to the bind pins 15 and connected to the bind pins 15. The first ends of some of the other first touch leads 621 are connected to the opposite end of the first touch unit 611, and the second ends of some of the other first touch leads 621 are led out to the bind pins 15 and connected to the bind pins 15.

[0079] In some exemplary embodiments, when finger touch control is possible, the first touch electrode 6111 may be a drive electrode and the second touch electrode 6121 may be an induction electrode. Alternatively, the first touch electrode 6111 may be an induction electrode and the second touch electrode 6121 may be a drive electrode. The multiple first touch units 611 and the multiple second touch units 612 form M rows of drive electrodes*N columns of induction electrodes, that is, including M first touch units 611 and N second touch units 612, where M and N are positive integers greater than 2.

[0080] 5, a first end of the second touch lead 622 is connected to one end of the second touch unit 612, and a second end of the second touch lead 622 is led to the bind pin 15 and connected to the bind pin 15. This wiring method is also called 2T1R (the first touch unit 611 is the touch driving unit, and the second touch unit 612 is the touch guiding unit), and of course, it can also be 1T2R (the first touch unit 611 is the touch guiding unit, and the second touch unit 612 is the touch driving unit).

[0081] The first touch electrodes 6111 located in the same column are sequentially arranged along the second direction Y (the longitudinal direction of the display area AA). It can be understood that the number of first touch electrodes 6111 included in the first touch unit 611 is relatively large. The touch signal starts from the first touch electrode 6111 coupled to the first touch lead 621 and is transmitted sequentially along the column of the first touch electrodes 6111 in a direction away from the first touch lead 621. However, as the transmission distance increases, the touch signal gradually attenuates. Therefore, when the number of first touch electrodes 6111 is large, both ends of the first touch electrodes 6111 in the same column are respectively coupled to the first touch lead 621. This can ensure that the touch signal received by the first touch electrode 6111 farthest from the first touch lead 621 among the first touch electrodes 6111 in a column is not attenuated, and the touch signals on the multiple first touch electrodes 6111 in a column are approximately the same, thereby reducing touch noise.

[0082] In another exemplary embodiment, the first touch lead 621 is a single connection type, that is, only one end of the first touch unit is connected to the first touch lead 621, and this wiring may be a connection type called 1T1R.

[0083] Of course, in other exemplary embodiments of the present disclosure, the second touch lead 622 may be configured as two parts, with the first ends of some second touch leads 612 correspondingly connected to one end of the second touch lead 622, and the second ends of the second touch leads 622 extending to the bind pin 15 and connected to the bind pin 15. The first ends of the other part of the second touch leads 622 correspondingly connected to the opposite end of the second touch unit 612, and the second ends of the other part of the second touch leads 622 extending to the bind pin 15 and connected to the bind pin 15.

[0084] This wiring method is also called 2T2R, and in this wiring method, among the touch electrodes connected to the touch leads in one row, the difference between the touch signal received by the touch electrode farthest from the touch lead 62 and the touch signal received by the touch electrode close to the touch lead 62 is not large, so that the touch accuracy of a relatively large touch screen can be ensured.

[0085] As shown in Figure 4, a first optical functional layer 71 is provided on the side of the second touch layer 53 that is separated from the base substrate 1, and a second optical functional layer 72 is provided on the side of the first optical functional layer 71 that is separated from the base substrate 1.

[0086] In the display area AA, the first optical function layer 71 has an optical pattern 711. Specifically, a plurality of recesses may be provided on a surface of the first optical function layer 71 that is away from the base substrate 1, i.e., the optical pattern 711 may be a plurality of recesses. The recesses may include a bottom wall parallel to the display surface and side walls that intersect with the display surface. The recesses correspond one-to-one to the sub-pixels 35. Specifically, the number of recesses is the same as the number of sub-pixels 35, and the shape of the recesses is the same as the shape of the sub-pixels 35. For example, the sub-pixels 35 may be circular and the recesses may also be circular, or the sub-pixels 35 may be rectangular and the recesses may also be rectangular. Of course, in other exemplary embodiments of the present disclosure, the shapes of the sub-pixels 35 and the recesses may be other shapes, but a description thereof will be omitted here.

[0087] As shown in Figure 22, the optical pattern 711 (recess) may be a via that penetrates the first optical functional layer 71, or as shown in Figure 4, the optical pattern 711 (recess) may be a blind via that does not penetrate the first optical functional layer 71.

[0088] As shown in Figure 4, the orthogonal projection of the recess onto the display substrate 10 covers the subpixel 35, i.e., the edge of the orthogonal projection of the recess onto the display substrate 10 can overlap the edge of the subpixel 35, and the area of ​​the orthogonal projection of the recess onto the display substrate 10 may be larger than the area of ​​the subpixel 35.

[0089] The second optical functional layer 72 is provided on the side of the first optical functional layer 71 away from the base substrate 1, and at least a portion of the second optical functional layer 72 is provided within the recess, and the refractive index of the second optical functional layer 72 is different from that of the first optical functional layer 71. For example, the refractive index of the second optical functional layer 72 is greater than that of the first optical functional layer 71. Therefore, total reflection is likely to occur at the interface between the second optical functional layer 72 and the side wall of the recess, and the side wall of the recess totally reflects the inclined exit light to form totally reflected light. By changing the angle of the exit light, the totally reflected light is relatively converged and emitted from the front of the display panel 100, thereby increasing the exit efficiency at the front of the display panel 100, reducing the exit efficiency at the side of the display panel 100, and improving the anti-peeping effect.

[0090] Of course, since the refractive index of the second optical functional layer 72 is smaller than that of the first optical functional layer 71, refraction is emitted at the interface between the second optical functional layer 72 and the side wall of the recess, and the refraction angle is smaller than the incident angle, by changing the angle of the emitted light, the total reflected light can be relatively converged and emitted from the front of the display panel 100, thereby increasing the emission efficiency at the front of the display panel 100 and reducing the emission efficiency at the side of the display panel 100, thereby improving the anti-peeping effect.

[0091] The thickness of the second optical functional layer 72 is greater than the thickness of the first optical functional layer 71, and the thickness of the second optical functional layer 72 is 3 micrometers or more and 5 micrometers or less, for example, the thickness of the second optical functional layer 72 is 3.2 micrometers, 3.5 micrometers, 3.8 micrometers, 4.15 micrometers, 4.56 micrometers, 4.88 micrometers, etc., and the thickness of the first optical functional layer 71 is 1.5 micrometers or more and 2.5 micrometers or less, for example, the thickness of the first optical functional layer 71 may be 1.7 micrometers, 1.9 micrometers, 2.1 micrometers, 2.25 micrometers, 2.45 micrometers, etc.

[0092] In the manufacturing process of the display panel 100, multiple display panels 100 are fabricated on a single large motherboard, and then cut along the cutting channels 14 to form multiple display panels 100. The materials of the first optical functional layer 71 and the second optical functional layer 72 are both organic insulating materials, which are prone to generating carbon ash during cutting, which can connect two adjacent conductive wires of the display panel 100 and cause display defects. Therefore, the cutting channels 14 do not include the first optical functional layer 71 and the second optical functional layer 72. However, if the first optical functional layer 71 and the second optical functional layer 72 are not provided, air bubbles are likely to form in the cutting channels 14 after the protective film is attached during the manufacturing process.

[0093] The inventors discovered that the main reason why the protective film is prone to generating bubbles in the cutting channel 14 is that the step formed by stacking the first optical functional layer 71 and the second optical functional layer 72 is large; specifically, the step can reach 5.6 micrometers, for example, and after the protective film is bonded, air bubbles are likely to generate in the cutting channel 14.

[0094] In this embodiment, referring to Figure 7, a non-zero first distance D1 is provided between the edge line of the first optical functional layer 71 close to the cutting channel 14 and the cutting channel 14, i.e., the first optical functional layer 71 does not extend from the display area AA to the cutting channel 14, and is provided with a gap between the first optical functional layer 71 and the cutting channel 14.

[0095] The second optical functional layer 72 covers the optical pattern 711 of the first optical functional layer 71 and extends to the side closer to the cutting channel 14 of the base substrate 1; specifically, in the display area AA, the second optical functional layer 72 covers the first optical functional layer 71 and is provided within the recess of the first optical functional layer 71; in the non-display area NA, the second optical functional layer 72 covers the side walls of the first optical functional layer 71 and extends onto the base substrate 1, and a non-zero second distance D2 is provided between the edge line of the second optical functional layer 72 closer to the cutting channel 14 and the cutting channel 14; that is, the second optical functional layer 72 does not extend from the display area AA to the cutting channel 14, but is arranged with a gap between the second optical functional layer 72 and the cutting channel 14. The first distance D1 is greater than the second distance D2, ie, the second optical functional layer 72 completely covers the first optical functional layer 71.

[0096] Where the second optical functional layer 72 protrudes from the first optical functional layer 71, there is only one layer of the second optical functional layer 72, and the step formed in the second optical functional layer 72 is small, being only the thickness of the second optical functional layer 72, and air bubbles are less likely to occur after the protective film is bonded. In addition, because the materials of the first optical functional layer 71 and the second optical functional layer 72 are both organic insulating materials with good fluidity, the ridges of the side walls of the first optical functional layer 71 form arcs, and the portions where the second optical functional layer 72 covers the side walls of the first optical functional layer 71 also form arc ridges, and the ridges of the side walls of the second optical functional layer 72 can also form arcs, so the step in the second optical functional layer 72 is relatively smooth, and air bubbles are less likely to occur after the protective film is bonded.

[0097] In this case, if the difference C1 between the first distance D1 and the second distance D2 is 30 micrometers or more, the second optical functional layer 72 can cover the first optical functional layer 71 well, and the second optical functional layer 72 is formed smoothly with small steps.

[0098] Furthermore, because there is a limit to the width of the non-display region of the display panel, the difference C1 between the first distance D1 and the second distance D2 is 70 micrometers or less, i.e., the width by which the second optical functional layer 72 protrudes from a portion of the first optical functional layer 71 is 30 to 70 micrometers. For example, the difference between the first distance and the second distance may be 33 micrometers, 36.7 micrometers, 43.2 micrometers, 48 ​​micrometers, 50 micrometers, 52 micrometers, 57.8 micrometers, 63.4 micrometers, 68.5 micrometers, etc.

[0099] Furthermore, the first distance is 80 micrometers or more and 140 micrometers or less, and for example, the first distance may be 83 micrometers, 86.7 micrometers, 93.2 micrometers, 98 micrometers, 102 micrometers, 107.8 micrometers, 113.4 micrometers, 118.5 micrometers, 122 micrometers, 127.5 micrometers, 132.4 micrometers, 138.7 micrometers, etc.

[0100] The second distance is greater than or equal to 50 micrometers and less than or equal to 90 micrometers, for example, the second distance may be 52 micrometers, 57.8 micrometers, 63.4 micrometers, 68.5 micrometers, 73.2 micrometers, 78 micrometers, 83 micrometers, 86.7 micrometers, etc.

[0101] Of course, the above data may vary depending on the product and on the facility process.

[0102] 8 and 9 , in some exemplary embodiments of the present disclosure, the display panel 100 may further include a barrier ring 16 provided on a side of the cutting channel 14 closer to the display area AA, provided in the non-display area NA, and closer to the cutting channel 14 than the display area AA. Specifically, the crack barrier structure 16 may be annular and surround the cutting channel 14. The crack barrier structure 16 may include multiple barrier rings 161, and the multiple barrier rings 161 may be sequentially embedded. The first optical function layer 71 covers a portion of the crack barrier structure 16 closer to the display area AA. The first optical function layer 71 extends from the display area AA to the crack barrier structure 16 and covers a portion of the barrier ring 161 closer to the display area AA of the crack barrier structure 16, while leaving other portions of the barrier ring 161 closer to the cutting channel 14 uncovered. The second optical function layer 72 covers the entire crack barrier structure 16, i.e., the second optical function layer 72 covers the entire barrier ring 161. When cutting the motherboard to form multiple display panels 100, cracks will occur around the cutting channels 14, and the crack barrier structure 16 can prevent the cracks from spreading further toward the display area AA, ensuring that the film layer in the display area AA is not damaged and that the various leads located on the side of the crack barrier structure 16 closer to the display area AA are not damaged.

[0103] The crack barrier structure 16 can be disposed homogeneously in the same layer as the interlayer dielectric layer 26, i.e., the crack barrier structure 16 can be formed by the same patterning process as the interlayer dielectric layer 26. In addition, the sealing layer group 4 may cover a portion of the crack barrier structure 16 close to the display area AA.

[0104] 10 and 11 , in some exemplary embodiments of the present disclosure, the first distance D1 is equal to the distance between the edge line of the cutting channel 14 in the display area AA close to the cutting channel 14 and the cutting channel 14, i.e., the distance between the edge line of the first optical functional layer 71 close to the cutting channel 14 and the cutting channel 14 is equal to the distance between the edge line of the first optical functional layer 71 close to the cutting channel 14 in the display area AA and the cutting channel 14, i.e., the first optical functional layer 71 is provided only in the display area AA, and the first optical functional layer 71 is not provided in the non-display area NA. The second optical functional layer 72 extends to the edge of the cutting channel 14 close to the display area AA, i.e., the second optical functional layer 72 is provided in both the display area AA and the non-display area NA.

[0105] By doing this, the step caused by the first optical functional layer 71 at the edge of the display panel 100 can be completely eliminated. However, when the first optical functional material layer is exposed and developed to remove the material in the non-display area NA to form the first optical functional layer 71, the developer will corrode the lead wire of the second touch layer 53, causing the touch lead 62 to be disconnected or have too much resistance, which will affect the touch effect.

[0106] 12 to 14, the touch leads 62 may be covered with the first optical function layer 71. That is, the first optical function layer 71 is also provided in the non-display area NA, and the first optical function layer 71 in the non-display area NA covers only the touch leads 62. As shown in FIGS. 12 and 14, the first optical function layer 71 may be provided over the entire layer, extending from the display area AA to the outermost touch leads 62 in the non-display area NA and covering the outermost touch leads 62, and the first optical function layer 71 is not provided in the non-display area NA on the portions of the touch leads 62 away from the display area AA. Of course, in another exemplary embodiment of the present disclosure, as shown in FIG. 13, the first optical function layer 71 includes an optical function portion located in the display area AA and a covering portion 712 located in the non-display area NA, and two adjacent covering portions 712 are arranged at an interval, and one covering portion 712 covers one touch lead 62.

[0107] After the touch leads 62 are covered with the first optical functional layer 71, when the first optical functional material layer is exposed and developed to remove the material in the non-display area NA, the developer does not corrode the touch leads 62 of the second touch layer 53, ensuring that the touch leads 62 are not disconnected or have too much resistance, which does not affect the touch effect. In addition, because the touch leads 62 are spaced a certain distance from the cutting channel 14, the covering portion 712 does not create a step on the edge of the display panel 100, and no air bubbles are generated after the protective film is attached.

[0108] Also, as shown in Figure 15, in the non-display area NA on the side closer to the bind pin 15 of the display panel 100, i.e., the non-display area NA on the side closer to the bind area BOD, the first optical function layer 71 covers only the touch leads 62, i.e., only the first optical function layer 71 coated on the touch leads 62 is reserved, and the first optical function layer 71 in other parts is removed and the second optical function layer 72 is reserved.For example, when the touch leads 62 are set in two sets, the first optical function layer 71 is not provided between the two adjacent sets of touch leads 62, and the first optical function layer 71 is not provided on the side of this touch lead 62 away from the other touch leads 62.

[0109] In some exemplary embodiments of the present disclosure, as shown in FIG. 16 , the fourth side region CB4, the bend region BEND, the bind region BOD, the first optical functional layer 71, and the second optical functional layer 72, which are separated by dashed lines in the figure, all extend within the bend region BEND, the edge line of the bend region BEND close to the display area AA is set to the first edge line L1, a non-zero third distance D3 is provided between the edge line of the first optical functional layer 71 close to the first edge line L1 and the first edge line L1, and a non-zero fourth distance D4 is provided between the edge line of the second optical functional layer 72 close to the first edge line L1 and the first edge line L1, and the fourth distance D4 is greater than the third distance D3, i.e., the width of the second optical functional layer 72 extending within the bend region BEND is greater than the width of the first optical functional layer 71 extending within the bend region BEND. In the bending region BEND, the thickness of the display panel 100 in the bending region BEND is thin, and most of the first optical functional layer 71 and the second optical functional layer 72 are removed to facilitate bending of the display panel 100. In addition, a staircase structure in which the second optical functional layer 72 is provided to cover the first optical functional layer 71 is advantageous in reducing bending stress and ensuring the display effect of the display panel 100.

[0110] Specifically, if the difference between the fourth distance D4 and the third distance D3 is 5 micrometers or more, the second optical functional layer 72 can cover the first optical functional layer 71 well, and the steps formed by the second optical functional layer 72 are small and smooth.

[0111] In addition, in order to prevent the second optical functional layer 72 from extending too far into the bending region BEND and affecting the bending of the display panel 100, the difference between the fourth distance and the third distance is 15 micrometers or less, and for example, the difference between the fourth distance D4 and the third distance D3 may be 5.3 micrometers, 5.7 micrometers, 6.2 micrometers, 6.8 micrometers, 7.1 micrometers, 7.8 micrometers, 8.4 micrometers, 8.8 micrometers, 9.2 micrometers, 9.8 micrometers, 10 micrometers, 10.8 micrometers, 11.4 micrometers, 12.8 micrometers, 13.7 micrometers, 14.5 micrometers, etc.

[0112] The third distance D3 may also be 3 micrometers or more and 8 micrometers or less, for example, the third distance may be 3.3 micrometers, 3.7 micrometers, 4.2 micrometers, 4.8 micrometers, 5.1 micrometers, 5.8 micrometers, 6.4 micrometers, 6.8 micrometers, 7.2 micrometers, 7.8 micrometers, etc.

[0113] The fourth distance D4 may be greater than or equal to 8 micrometers and less than or equal to 23 micrometers, for example, the fourth distance may be 8.3 micrometers, 8.7 micrometers, 9.2 micrometers, 9.8 micrometers, 10.1 micrometers, 10.8 micrometers, 11.4 micrometers, 11.8 micrometers, 12.2 micrometers, 13.7 micrometers, 14.2 micrometers, 15.8 micrometers, 16.1 micrometers, 17.8 micrometers, 18.4 micrometers, 19.8 micrometers, 20.2 micrometers, 21.8 micrometers, 22.5 micrometers, etc.

[0114] Of course, in other exemplary embodiments of the present disclosure, as shown in FIG. 17, the fourth side edge region CB4, the bending region BEND, and the binding region BOD can be divided by dashed lines, and the first optical functional layer 71 and the second optical functional layer 72 can extend to the side of the bending region BEND closer to the display region AA, i.e., the first optical functional layer 71 and the second optical functional layer 72 do not extend into the bending region BEND, i.e., the first optical functional layer 71 and the second optical functional layer 72 can extend to the side edge line of the bending region BEND closer to the display region AA. The edge line of the bending region BEND near the display region AA is set to the first edge line L1. A non-zero third distance D3 is provided between the edge line of the first optical functional layer 71 near the first edge line L1 and the first edge line L1. A non-zero fourth distance D4 is provided between the edge line of the second optical functional layer 72 near the first edge line L1 and the first edge line L1. The third distance D3 is greater than the fourth distance D4, i.e., the distance between the second optical functional layer 72 and the bending region BEND is smaller than the distance between the first optical functional layer 71 and the bending region BEND. By removing the first optical functional layer 71 and the second optical functional layer 72 within the bending region BEND, the thickness of the display panel 100 in the bending region BEND is reduced, which is advantageous for bending the display panel 100. In addition, the staircase structure in which the second optical functional layer 72 is provided to cover the first optical functional layer 71 is advantageous for reducing bending stress and ensuring the display effect of the display panel 100.

[0115] Specifically, if the difference between the third distance D3 and the fourth distance D4 is 5 micrometers or more, the second optical functional layer 72 can cover the first optical functional layer 71 well, and the steps formed by the second optical functional layer 72 are small and smooth.

[0116] In addition, to avoid the second optical functional layer 72 from extending too far into the bending region BEND and affecting the bending of the display panel 100, the difference between the third distance D3 and the fourth distance D4 is 15 micrometers or less, and for example, the difference between the third distance and the fourth distance may be 5.3 micrometers, 5.7 micrometers, 6.2 micrometers, 6.8 micrometers, 7.1 micrometers, 7.8 micrometers, 8.4 micrometers, 8.8 micrometers, 9.2 micrometers, 9.8 micrometers, 10 micrometers, 10.8 micrometers, 11.4 micrometers, 12.8 micrometers, 13.7 micrometers, 14.5 micrometers, etc.

[0117] The fourth distance D4 may also be 3 micrometers or more and 8 micrometers or less, for example, the third distance may be 3.3 micrometers, 3.7 micrometers, 4.2 micrometers, 4.8 micrometers, 5.1 micrometers, 5.8 micrometers, 6.4 micrometers, 6.8 micrometers, 7.2 micrometers, 7.8 micrometers, etc.

[0118] The third distance D3 may also be 8 micrometers or more and 23 micrometers or less, for example, the fourth distance may be 8.3 micrometers, 8.7 micrometers, 9.2 micrometers, 9.8 micrometers, 10.1 micrometers, 10.8 micrometers, 11.4 micrometers, 11.8 micrometers, 12.2 micrometers, 12.8 micrometers, 13.7 micrometers, 14.2 micrometers, 15.8 micrometers, 16.1 micrometers, 17.8 micrometers, 18.4 micrometers, 19.8 micrometers, 20.2 micrometers, 21.8 micrometers, 22.5 micrometers, etc.

[0119] 18, the display panel 100 may further include a third inorganic layer 29 and an organic material layer 30. Specifically, the display substrate 10 may include the third inorganic layer 29 and the organic material layer 30 disposed between the base substrate 1 and the light-emitting layer group 33. The third inorganic layer 29 and the organic material layer 30 are both insulating layers disposed between the conductive layers. For example, the third inorganic layer 29 may be an interlayer dielectric layer 26, and the organic material layer 30 may be a buffer layer 22, a gate insulating layer 24, a planarization layer 28, or the like. Of course, the third inorganic layer 29 may be another film layer, and may be disposed in a single layer, two layers, or multiple layers, and the organic material layer 30 may be another film layer.

[0120] Since inorganic materials are brittle, they are prone to cracking when bent, but organic materials are soft and are less likely to crack when bent. Therefore, it is necessary to remove the inorganic material in the bending region BEND, and part of the film layer of the organic material layer 30 may be retained or removed.

[0121] To remove the third inorganic layer 29 in the bending region BEND, a two-step patterning process can be used, for example, to first form a first groove 291 on the third inorganic layer 29 by etching with a first mask (Etch Bending A MASK, abbreviated as EBA MASK), and then to etch the third inorganic layer 29 in the first groove 291 with a second mask (Etch Bending B MASK, abbreviated as EBB MASK) to form a second groove 292, further thinning the third inorganic layer 29 so that the third inorganic layer 29 in the bending region BEND is completely etched away. That is, the second groove 292 is a through groove that penetrates the third inorganic layer 29, the first groove 291 exposes the second groove 292 to form a stepped groove structure, the edge line of the second groove 292 is the edge line of the bending region BEND, the orthogonal projection of the bending region BEND onto the base substrate 1 and the orthogonal projection of the first groove 291 onto the substrate overlap, for example, the orthogonal projection of the first groove 291 onto the base substrate 1 covers the orthogonal projection of the bending region BEND onto the base substrate 1, the orthogonal projection area of ​​the first groove 291 onto the base substrate 1 is larger than the orthogonal projection area of ​​the bending region BEND onto the base substrate 1, and the third inorganic layer 29 is not provided within the bending region BEND.

[0122] In addition, in Figure 17, the first optical functional layer 71 and the second optical functional layer 72 extend to the edge line of the bending region BEND closer to the display area AA, i.e., if the first optical functional layer 71 and the second optical functional layer 72 do not extend into the bending region BEND, the orthogonal projection of the first optical functional layer 71 and the second optical functional layer 72 onto the base substrate 1 overlaps with the orthogonal projection of the first groove 291 onto the base substrate 1, i.e., the orthogonal projection of the edge line of the first optical functional layer 71 and the second optical functional layer 72 closer to the bending region BEND onto the substrate is located within the orthogonal projection of the first groove 291 onto the base substrate 1.

[0123] 16 , in another exemplary embodiment of the present disclosure, the first optical functional layer 71 and the second optical functional layer 72 both extend on the side of the bind pin 15 away from the base substrate 1, a non-zero fifth distance D5 is provided between the edge line of the first optical functional layer 71 closest to the bind pin 15 and the bind pin 15, and a non-zero sixth distance D6 is provided between the edge line of the second optical functional layer 72 closest to the bind pin 15 and the bind pin 15, the sixth distance D6 being greater than the fifth distance D5. By removing the first optical functional layer 71 and the second optical functional layer 72 from the bind pin 15, the surface of the bind pin 15 becomes flat, facilitating binding between the display panel 100 and the flexible circuit board. In addition, the second optical functional layer 72 is provided as a stepped structure covering the first optical functional layer 71, which reduces the step between the first optical functional layer 71 and the second optical functional layer 72. When the display panel 100 is bound to the flexible circuit board, the support of the first optical functional layer 71 and the second optical functional layer 72 on the flexible circuit board is reduced, ensuring good bonding between the display panel 100 and the flexible circuit board, which is further advantageous for bonding the display panel 100 to the flexible circuit board, and ensuring the display effect of the display panel 100.

[0124] Specifically, if the difference between the sixth distance D6 and the fifth distance D5 is 5 micrometers or more, the second optical functional layer 72 can cover the first optical functional layer 71 well, and the steps formed by the second optical functional layer 72 are small and smooth.

[0125] In addition, to avoid the second optical functional layer 72 extending too far over the bind pin 15 and affecting the binding of the display panel 100, the difference between the sixth distance D6 and the fifth distance D5 is 15 micrometers or less, and for example, the difference between the sixth distance and the fifth distance may be 5.3 micrometers, 5.7 micrometers, 6.2 micrometers, 6.8 micrometers, 7.1 micrometers, 7.8 micrometers, 8.4 micrometers, 8.8 micrometers, 9.2 micrometers, 9.8 micrometers, 10 micrometers, 10.8 micrometers, 11.4 micrometers, 12.8 micrometers, 13.7 micrometers, 14.5 micrometers, etc.

[0126] The fifth distance D5 may also be 3 micrometers or more and 8 micrometers or less, for example, the third distance may be 3.3 micrometers, 3.7 micrometers, 4.2 micrometers, 4.8 micrometers, 5.1 micrometers, 5.8 micrometers, 6.4 micrometers, 6.8 micrometers, 7.2 micrometers, 7.8 micrometers, etc.

[0127] The sixth distance D6 may be 8 micrometers or more and 23 micrometers or less, for example, the fourth distance may be 8.3 micrometers, 8.7 micrometers, 9.2 micrometers, 9.8 micrometers, 10.1 micrometers, 10.8 micrometers, 11.4 micrometers, 11.8 micrometers, 12.2 micrometers, 13.7 micrometers, 14.2 micrometers, 15.8 micrometers, 16.1 micrometers, 17.8 micrometers, 18.4 micrometers, 19.8 micrometers, 20.2 micrometers, 21.8 micrometers, 22.5 micrometers, etc.

[0128] Of course, in other exemplary embodiments of the present disclosure, the first optical function layer 71 and the second optical function layer 72 may not extend to the side of the bind pin 15 that is away from the base substrate 1, i.e., the orthogonal projection of the second optical function layer 72 and the first optical function layer 71 onto the base substrate 1 may not overlap with the orthogonal projection of the bind pin 15 onto the base substrate 1. The first optical function layer 71 and the second optical function layer 72 extend to the edge of the bind pin 15 that is close to the display area AA. The second optical function layer 72 is provided as a structure that covers the first optical function layer 71, and a description of the specific dimensional relationship will be omitted here.

[0129] 19 , the orthogonal projection of the edge line of the first optical functional layer 71 onto the base substrate 1 may be a curved line, specifically, a rectangular zigzag line, and the orthogonal projection of the edge line of the second optical functional layer 72 onto the substrate may be a curved line, specifically, a rectangular zigzag line. Of course, in other exemplary embodiments of the present disclosure, the orthogonal projection of the edge line of the first optical functional layer 71 onto the base substrate 1 may be a sine curve, a triangular zigzag, a curve formed by connecting multiple arcs, a curve formed by connecting arcs in a straight line, etc. Correspondingly, the orthogonal projection of the edge line of the second optical functional layer 72 onto the substrate may be a sine curve, a triangular zigzag, a curve formed by connecting multiple arcs, a curve formed by connecting arcs in a straight line, etc. In this way, the step formed between the first optical functional layer 71 and the second optical functional layer 72 can be reduced, and the edge portions of the first optical functional layer 71 and the second optical functional layer 72 can be made smoother.

[0130] 20 and 21 , the display panel 100 includes a shielding layer 8 provided on a side of the touch layer group 5 away from the base substrate 1, specifically, the shielding layer 8 is provided between the second touch layer 53 and the second optical function layer 72 and between the second touch layer 53 and the first optical function layer 71, that is, the shielding layer 8 is provided on a side of the second touch layer 53 away from the base substrate 1, and the shielding layer 8 may include a first shielding portion 81 located in the non-display area NA. The first shielding portion 81 can shield the non-display area NA of the display panel 100.

[0131] In addition, a reflective layer 17 is provided in the non-display area NA, and the orthogonal projection of the reflective layer 17 onto the base substrate 1 is located within the orthogonal projection of the first shading portion onto the base substrate 1. For example, the orthogonal projection of the first shading portion onto the base substrate 1 may overlap with the orthogonal projection of the reflective layer 17 onto the base substrate 1. The first shading portion blocks external ambient light from emitting onto the reflective layer 17, thereby preventing the reflective layer 17 from reflecting the ambient light and affecting the display effect of the display panel 100. The orthogonal projection of the first light-shielding portion onto the base substrate 1 also covers the orthogonal projection of the reflective layer 17 onto the base substrate 1, and the orthogonal projection area of ​​the first light-shielding portion onto the base substrate 1 is larger than the area of ​​the reflective layer 17 onto the base substrate 1. As a result, the first light-shielding portion not only covers the surface of the reflective layer 17 that is away from the base substrate 1, but also covers the side walls of the reflective layer 17, further ensuring the light-shielding effect of the first light-shielding portion on the reflective layer 17 and preventing the reflective layer 17 from reflecting ambient light under strong ambient light and affecting the display effect of the display panel 100.

[0132] The reflective layer 17 includes a touch lead 62 and a first lead 171, which are disposed between the base substrate 1 and the first optical function layer 71. Specifically, the first lead 171 can be a data line, a gate line, a power supply line (VSS), etc. The data line, gate line, power supply line, etc. are generally made of metal, which has high reflectivity. Therefore, after being shielded by the first light-shielding portion, the data line, gate line, power supply line, etc. can be prevented from reflecting ambient light in strong ambient light and affecting the display effect of the display panel 100.

[0133] In another exemplary embodiment of the present disclosure, referring to FIG. 20 , a light-transmitting portion 18 is provided in the display area AA of the display panel 100, and since the sub-pixels 35 and various leads are not provided within the light-transmitting portion 18, the light-transmitting portion 18 has high light transmittance, and a photodetector, a camera, etc. are provided on the side of the base substrate 1 that is separated from the first optical function layer 71, and the photodetector and camera are provided opposite the light-transmitting portion 18, so that a photoelectric detection function can be realized by irradiating light onto the photodetector through the light-transmitting portion 18, or an optical imaging function can be realized by irradiating light onto the camera through the light-transmitting portion 18.

[0134] However, there is a defect around the light-transmitting portion 18, and light rays from the sub-pixels 35 in the display area AA are emitted through the light-transmitting portion 18 and may be emitted to a photoelectric detector, camera, etc., which may affect the detection and imaging functions of the photoelectric detector or camera.

[0135] To solve the above technical problem, the shielding layer 8 includes a second shielding portion 82 provided on the side of the touch layer group 5 away from the base substrate 1, and the second shielding portion 82 covers the non-light-emitting region around the light-transmitting portion 18, i.e., the orthogonal projection of the second shielding portion 82 onto the base substrate 1 overlaps with the orthogonal projection of the non-light-emitting region around the light-transmitting portion 18 onto the base substrate 1. The light from the subpixel 35 is shielded by the second shielding portion 82 and is not emitted through the light-transmitting portion 18 or emitted through the light-transmitting portion 18 to a photodetector, a camera, or the like, thereby preventing the light from affecting the detection or imaging function of the photodetector or the camera.

[0136] 4, in this embodiment, the display panel 100 may further include a color film layer 9 that may be disposed on the side of the second optical function layer 72 that is away from the base substrate 1. The color film layer 9 may include a plurality of filter sections that are disposed opposite the subpixels 35 and that can filter light emitted from the subpixels 35, thereby converting the light emitted by the filter sections into light of a desired color. The color film layer 9 also includes a black matrix disposed in the display area AA, dividing the display area AA into a plurality of light-transmitting regions, with filter sections disposed within the light-transmitting regions. Furthermore, a black matrix is ​​disposed opposite the non-light-emitting regions of the display area AA, allowing the black matrix to shield gate lines, data lines, etc. in the display area AA. Since the black matrix is ​​not disposed in the non-display area NA, it cannot block light from the data lines, gate lines, power lines, etc. in the non-display area NA. In addition, in other exemplary embodiments of the present disclosure, the color film layer 9 may be provided on the side of the first optical functional layer 71 closer to the base substrate 1, and specifically, the color film layer 9 may be provided between the first optical functional layer 71 and the second touch layer 53.

[0137] Based on the same inventive concept, an exemplary embodiment of the present disclosure further provides a display device that can include any of the display panels 100 described above, and the specific configuration of the display panel 100 has been described in detail above, so a description thereof will be omitted here.

[0138] On the other hand, the specific type of this display device is not particularly limited, and those skilled in the art can select it according to the specific application of this display device, such as a mobile device such as a mobile phone, a wearable device such as a wristwatch, or a VR device, and will not be described here.

[0139] In addition, in addition to the display panel 100, the display device also includes necessary components and configurations such as a display, specifically a housing, a circuit board, a power cable, etc. Those skilled in the art can supplement these components according to the specific usage requirements of the display device, and these will not be described here.

[0140] Compared with the prior art, the beneficial effects of the display device provided by the exemplary embodiment of the present invention are similar to the beneficial effects of the display panel 100 provided by the above-described exemplary embodiment, and therefore will not be described here.

[0141] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure in accordance with the general principles of the present disclosure, including common knowledge or customary technical means known in the art but not disclosed in the present disclosure. The specification and embodiments are considered to be exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A display panel having a display area and a non-display area, wherein a cutting channel is provided in the non-display area, the display panel includes a base substrate, a first optical function layer, and a second optical function layer; the first optical function layer is provided on one side of the base substrate, and has an optical pattern in the first optical function layer in the display area, and a first distance that is non-zero is provided between an edge line of the first optical function layer that is close to the cutting channel and the cutting channel; the second optical functional layer is provided on a side of the first optical functional layer that is away from the base substrate, the second optical functional layer covers the optical pattern of the first optical functional layer, and extends to a side of the base substrate that is closer to the cutting channel, and a non-zero second distance is provided between an edge line of the second optical functional layer that is closer to the cutting channel and the cutting channel, and the first distance is greater than the second distance; The refractive index of the first optical functional layer is different from the refractive index of the second optical functional layer. A display panel characterized by:

2. The difference between the first distance and the second distance is 30 micrometers or more.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

3. the display panel further includes a crack barrier structure; The crack barrier structure is provided on a side of the cutting channel close to the display area, the first optical function layer covers a part of the crack barrier structure close to the display area, and the second optical function layer covers the entire crack barrier structure.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

4. The first distance is substantially equal to a distance between an edge line of the display area close to the cutting channel and the cutting channel, and the second optical function layer extends to an edge of the cutting channel close to the display area.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

5. the display panel further includes touch leads; The touch lead is provided between the base substrate and the first optical function layer and is located in the non-display area, the first optical function layer covers the touch lead, and the first optical function layer is not provided in a portion of the non-display area where the touch lead is separated from the display area.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

6. The first optical function layer includes a plurality of covering portions, and each covering portion covers one of the touch leads.

6. The display panel according to claim 5.

7. The non-display area includes a bind area, and bind pins are provided in the bind area. The touch leads are connected to the bind pins. In the non-display area near one side of the bind area, the first optical function layer covers only the touch leads.

6. The display panel according to claim 5.

8. The refractive index of the second optical functional layer is greater than the refractive index of the first optical functional layer, the optical pattern is a recess, and at least a part of the second optical functional layer is located within the recess.

6. The display panel according to claim 5.

9. The first optical functional layer and the second optical functional layer are both made of an organic insulating material, and the thickness of the second optical functional layer is greater than the thickness of the first optical functional layer.

9. The display panel according to claim 8.

10. The display panel further includes a display substrate; The display substrate is provided between the base substrate and the first optical function layer, and the display substrate includes a plurality of sub-pixels, and the sub-pixels are provided opposite the recesses.

9. The display panel according to claim 8.

11. The display panel further includes a sealing layer group and a touch layer group; the sealing layer group is provided on a side of the display substrate that is away from the base substrate, The touch layer group is provided on a side of the sealing layer group that is separated from the base substrate, and the first optical function layer is provided on the side of the touch layer group that is separated from the base substrate.

11. The display panel according to claim 10.

12. the touch layer group includes a first touch layer, a touch insulating layer, and a second touch layer; the first touch layer is provided on a side of the sealing layer group that is away from the base substrate; the touch insulating layer is provided on a side of the first touch layer that is away from the base substrate, the second touch layer is provided on a side of the touch insulating layer that is away from the base substrate, The touch leads include a first sub-touch lead, a second sub-touch lead, or a first sub-touch lead and a second sub-touch lead that are stacked and connected together, the first touch layer includes the first sub-touch lead, and the second touch layer includes the second sub-touch lead.

12. The display panel according to claim 11.

13. the non-display area includes a curved area, and the display panel further includes a third inorganic layer; The third inorganic layer is provided between the base substrate and the light-emitting layer group, a first groove is provided in the third inorganic layer, an orthogonal projection of the curved region onto the base substrate overlaps with an orthogonal projection of the first groove onto the base substrate, and the third inorganic layer is not provided in the curved region.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

14. An edge line of the curved region that is close to the display region is a first edge line, the first optical function layer and the second optical function layer both extend into the curved region, a non-zero third distance is provided between an edge line of the first optical function layer that is close to the first edge line and the first edge line, and a non-zero fourth distance is provided between an edge line of the second optical function layer that is close to the first edge line and the first edge line, and the fourth distance is greater than the third distance.

14. The display panel according to claim 13.

15. An edge line of the curved region that is close to the display region is a first edge line, the first optical function layer and the second optical function layer both extend to a side of the curved region that is close to the display region, a non-zero third distance is provided between the edge line of the first optical function layer that is close to the first edge line and the first edge line, and a non-zero fourth distance is provided between the edge line of the second optical function layer that is close to the first edge line and the first edge line, and the third distance is greater than the fourth distance.

14. The display panel according to claim 13.

16. Orthogonal projections of the first optical functional layer and the second optical functional layer onto the base substrate overlap with orthogonal projections of the first groove onto the base substrate.

16. The display panel according to claim 14 or 15.

17. The absolute value of the difference between the fourth distance and the third distance is 5 micrometers or more.

16. The display panel according to claim 14 or 15.

18. the display panel further includes a bind pin; The bind pin is provided in the non-display area, the first optical function layer and the second optical function layer extend to a side of the bind pin that is away from the base substrate, a non-zero fifth distance is provided between an edge line of the first optical function layer that is close to the bind pin and an edge line of the bind pin that is close to the display area, and a non-zero sixth distance is provided between an edge line of the second optical function layer that is close to the bind pin and an edge line of the bind pin that is close to the display area, and the sixth distance is greater than the fifth distance.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

19. The absolute value of the difference between the sixth distance and the fifth distance is 5 micrometers or more.

19. The display panel according to claim 18.

20. The orthogonal projection of the edge line of the first optical functional layer onto the base substrate is set as a curve, and the orthogonal projection of the edge line of the second optical functional layer onto the base substrate is set as a curve.

20. The display panel according to claim 1, wherein the first and second electrodes are electrically connected to each other.

21. the display panel further includes a shielding layer; The shielding layer is provided on a side of the touch layer group away from the base substrate, and the shielding layer includes a first shielding portion, and the first shielding portion is located in the non-display area.

12. The display panel according to claim 11.

22. the display panel further includes a reflective layer; The reflective layer is provided in the non-display area, and an orthogonal projection of the reflective layer onto the base substrate is located within an orthogonal projection of the first shielding portion onto the base substrate.

22. The display panel according to claim 21.

23. the reflective layer includes a first lead and a touch lead; the first lead is provided between the base substrate and the first optical function layer and is located in the non-display area; The touch lead is provided between the base substrate and the first optical function layer.

23. The display panel according to claim 22.

24. The first lead includes a gate line, a data line, and / or a power line.

24. The display panel according to claim 23.

25. a light-transmitting portion is provided in a display area of ​​the display panel, and the shielding layer further includes a second shielding portion; The second shielding portion covers a non-light-emitting region around the light-transmitting portion.

22. The display panel according to claim 21.

26. the display panel further includes a color film layer; The color film layer is provided on a side of the second optical function layer that is farther from the base substrate, or on a side of the first optical function layer that is closer to the base substrate, and the color film layer includes a plurality of filter portions, and the filter portions are provided opposite the sub-pixels.

2. The display panel according to claim 1, wherein the first and second electrodes are arranged parallel to each other.

27. The display panel according to any one of claims 1 to 26 is included. A display device characterized by:

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