Display panel and electronic device

Abstract

The application provides a display panel and an electronic device. The display panel comprises at least one first display substrate, the first display substrate comprises a driving device layer, a first insulating layer, a first touch layer, a light emitting device binding layer and a light emitting device which are arranged in a stack, and the first touch layer is provided with a first touch electrode, and the first touch electrode is electrically connected with a first touch driving device through a first via hole penetrating through the first insulating layer. In this way, by integrating the touch layer in the first display substrate and punching the first display substrate to directly electrically connect the touch electrode of the touch layer with the first touch driving device, the touch layer does not have a touch frame, so as to alleviate the problem of the touch frame in the existing large-screen display using an external capacitive touch scheme.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and an electronic device. Background Technology

[0002] With the development of display technology, large-screen displays have been widely used in various settings, such as shopping malls, conference rooms, and classrooms. Currently, most large-screen display touch solutions on the market are infrared touch. Infrared touch is low-cost and easy to install, but due to the characteristics of the infrared emitters and receivers, large-screen displays using infrared touch have a 13.6mm protrusion on the bezel, resulting in a poor appearance and preventing a fully flat display. To cater to the high-end education market and achieve a fully flat display, external capacitive touch solutions have emerged. However, external capacitive touch solutions also have a touch border, which is detrimental to achieving a full-screen display. Summary of the Invention

[0003] This application provides a display panel and an electronic device to alleviate the technical problem of touch bezels in existing large-screen displays that use external capacitive touch solutions.

[0004] To solve the above problems, the technical solution provided in this application is as follows:

[0005] This application provides a display panel, which includes at least one first display substrate, the first display substrate comprising:

[0006] First insulating layer;

[0007] A driving device layer is disposed on one side of the first insulating layer, the driving device layer including a first touch driving device and a first light-emitting driving device;

[0008] A first touch layer is disposed on the side of the first insulating layer away from the driving device layer. The first touch layer is provided with a first touch electrode, which is electrically connected to the first touch driving device.

[0009] A light-emitting device bonding layer is disposed on the side of the first touch layer away from the driving device layer. The light-emitting device bonding layer is provided with bonding electrodes, which are electrically connected to the first light-emitting driving device.

[0010] A light-emitting device is disposed on the side of the light-emitting device bonding layer away from the first touch layer and is bonded to the bonding electrode;

[0011] The first display substrate further includes a plurality of first vias, each of which penetrates the first insulating layer. The first touch electrode includes an electrode portion and a connection portion. The electrode portion is located on the side of the first insulating layer away from the driving device layer. The connection portion is located within the first via. The electrode portion is electrically connected to the first touch driving device through the connection portion.

[0012] In the display panel provided in this application embodiment, the first touch electrode includes a first driving electrode and a first sensing electrode, the first driving electrode and the first sensing electrode are disposed in the same layer, the first touch layer further includes a bridging electrode, the first driving electrode or the first sensing electrode is bridged through the bridging electrode, and the bridging electrode is located on the side of the first driving electrode and the first sensing electrode away from the driving device layer.

[0013] In the display panel provided in the embodiments of this application, the first touch electrode includes a first driving electrode and a first sensing electrode. The first driving electrode includes a driving electrode portion and a driving connection portion, and the first sensing electrode includes a sensing electrode portion and a sensing connection portion.

[0014] The first display substrate further includes a second insulating layer, the second insulating layer being located on the side of the first insulating layer away from the driving device layer, the driving electrode portion being located on the side of the second insulating layer away from the first insulating layer, and the sensing electrode portion being located on the side of the second insulating layer close to the first insulating layer;

[0015] The first via includes a first sub-via and a second sub-via. The first sub-via penetrates the second insulating layer and the first insulating layer, and the second sub-via penetrates the first insulating layer. The driving connection portion is located in the first sub-via, and the driving electrode portion is electrically connected to the first touch driving device through the driving connection portion. The sensing connection portion is located in the second sub-via, and the sensing electrode portion is electrically connected to the first touch driving device through the sensing connection portion.

[0016] In the display panel provided in this application embodiment, the linewidth range of the first driving electrode and the first sensing electrode is 30 micrometers to 100 micrometers, the line spacing between adjacent first driving electrodes is greater than or equal to 50 micrometers, and the line spacing between adjacent first sensing electrodes is greater than or equal to 50 micrometers.

[0017] In the display panel provided in this application embodiment, the first display substrate further includes:

[0018] A signal line layer is disposed on the side of the first insulating layer near the first touch layer. The signal line layer includes signal traces, which are electrically connected between the first light-emitting driver and the bonding electrode.

[0019] A third insulating layer is disposed between the signal line layer and the first touch layer; and

[0020] A fourth insulating layer is disposed between the first touch layer and the light-emitting device bonding layer;

[0021] The first display substrate further includes a plurality of second vias and third vias. The second vias penetrate the fourth insulating layer, the first touch layer and the third insulating layer, and the third vias penetrate the first insulating layer. The bonding electrode is electrically connected to the signal trace through the second vias, and the signal trace is electrically connected to the first light-emitting driver through the third vias.

[0022] In the display panel provided in this application embodiment, the first display substrate further includes:

[0023] A first shielding layer is disposed on the side of the third insulating layer away from the signal line layer;

[0024] A fifth insulating layer is disposed between the first shielding layer and the first touch layer;

[0025] The second shielding layer is disposed on the side of the fourth insulating layer away from the first touch layer;

[0026] A sixth insulating layer is disposed between the second shielding layer and the light-emitting device bonding layer;

[0027] Both the first and second shielding layers have a constant potential.

[0028] In the display panel provided in this application embodiment, the first shielding layer, the second shielding layer, the signal line layer, and the first touch electrode are made of the same material.

[0029] In the display panel provided in the embodiments of this application, the display panel further includes a plurality of second display substrates, which are spliced ​​together, and the first display substrate is located at the splicing point of two adjacent second display substrates.

[0030] In the display panel provided in this application embodiment, the second display substrate includes a light-emitting substrate and a second touch layer located on the light-emitting side of the light-emitting substrate. The second touch layer is provided with a second touch electrode and touch traces located on the side of the second touch electrode away from the first display substrate. Each touch trace is electrically connected to one second touch electrode.

[0031] This application also provides an electronic device that includes a display panel from one of the foregoing embodiments.

[0032] The beneficial effects of this application are as follows: In the display panel and electronic device provided by this application, the display panel includes at least one first display substrate. The first display substrate includes a driving device layer, a first insulating layer, a first touch layer, a light-emitting device bonding layer, and a light-emitting device stacked together. The first touch layer is provided with a first touch electrode. The first touch electrode is electrically connected to the first touch driving device through a first through-hole penetrating the first insulating layer. Thus, by integrating the touch layer into the first display substrate and drilling holes in the first display substrate to directly electrically connect the touch electrode of the touch layer to the first touch driving device, the touch layer does not have a touch bezel, which solves the problem of touch bezels in existing large-screen displays using external capacitive touch solutions. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a top view of a display panel provided in an embodiment of this application.

[0035] Figure 2 for Figure 1 A schematic diagram of a cross-sectional structure of the first display substrate.

[0036] Figure 3 for Figure 2 A top-view structural diagram of the first touch layer.

[0037] Figure 4 for Figure 2 Another top view of the first touch layer structure.

[0038] Figure 5 for Figure 1 A schematic diagram of a cross-sectional structure of the second display substrate.

[0039] Figure 6 for Figure 5 A top-view structural diagram of the second touch layer.

[0040] Figure 7 for Figure 1 Another cross-sectional view of the first display substrate.

[0041] Figure 8 for Figure 1 Another cross-sectional structural diagram of the first display substrate. Detailed Implementation

[0042] The following descriptions of the embodiments are based on the accompanying illustrations, illustrating specific embodiments in which this application can be implemented. Directional terms used in this application, such as [up], [down], [front], [back], [left], [right], [inner], [outer], [side], etc., are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and understanding of this application, and not for limiting this application. In the figures, structurally similar units are denoted by the same reference numerals. In the figures, the thickness of some layers and regions is exaggerated for clarity and ease of description. That is, the dimensions and thicknesses of each component shown in the figures are arbitrarily shown, but this application is not limited thereto.

[0043] Please refer to Figures 1 to 6 , Figure 1 This is a top view of a display panel provided in an embodiment of this application. Figure 2 for Figure 1 A schematic diagram of a cross-sectional structure of the first display substrate. Figure 3 for Figure 2 A top-view structural diagram of the first touch layer. Figure 4 for Figure 2 Another top view diagram of the first touch layer. Figure 5 for Figure 1 A schematic diagram of a cross-sectional structure of the second display substrate. Figure 6 for Figure 5 A top-view structural diagram of the second touch layer. (Refer to...) Figure 1 The display panel 100 is a splicing display panel 100 to achieve a large-screen display. The display panel 100 includes at least one first display substrate 1 and a plurality of second display substrates 2, which are spliced ​​together. The first display substrate 1 is located at the splicing point of two adjacent second display substrates 2, and a splicing seam is formed at the splicing point. By placing the first display substrate 1 in the splicing seam, the splicing seam can be eliminated.

[0044] It should be noted that although the first display substrate 1 is disposed within the splicing seam, which can eliminate the splicing seam, when the first display substrate 1 uses red touch or external capacitive touch, the first display substrate 1 inevitably has a touch border. The area where the touch border is located cannot be used for display, thus the splicing seam still has an area that cannot be displayed, and the splicing seam cannot be completely eliminated. To this end, this application provides a display panel 100 that improves the touch scheme of the first display substrate 1 to solve the problem of the existence of a touch border.

[0045] Continue to refer to Figure 1This application describes an embodiment of the display panel 100 as including one first display substrate 1 and two second display substrates 2, but this application is not limited to this. The display panel 100 of this application may also include more first display substrates 1 and more second display substrates 2. Of course, in some embodiments, the display panel 100 of this application may also include only one first display substrate 1.

[0046] The display panel 100 includes a first display area AA1, a second display area AA2, and a first non-display area NA1 and a second non-display area NA2 located on one side of the second display area AA2. The first display area AA1 is located between two adjacent second display areas AA2, and the first non-display area NA1 is located on the side of the second display area AA2 away from the first display area AA1. The first display substrate 1 is disposed corresponding to the first display area AA1, and the second display substrate 2 is disposed corresponding to the second display area AA2 and the first non-display area NA1 and the second non-display area NA2. In other words, the first display substrate 1 includes the first display area AA1, and the second display substrate 2 includes the second display area AA2, the first non-display area NA1, and the second non-display area NA2.

[0047] Both the first display area AA1 and the second display area AA2 are used to display images, while both the first non-display area NA1 and the second non-display area NA2 can be used to set various traces, etc. The second non-display area NA2 is also used to connect to an external driving circuit. For example, the display panel 100 also includes a chip-on-film (COF) film 3 and a printed circuit board (PCB). The second non-display area NA2 is provided with a bonding circuit, which is electrically connected to the printed circuit board 4 through the COF film 3, thereby realizing the electrical connection between the second display substrate 2 and the external circuit.

[0048] The structures of the first display substrate 1 and the second display substrate 2 will be described in detail below.

[0049] Reference Figure 2The first display substrate 1 includes a first insulating layer 11, a driving device layer 20, a first touch layer 30, a light-emitting device bonding layer 40, and a light-emitting device 50. The driving device layer 20 is located on one side of the first insulating layer 11, and the driving device layer 20 includes a first touch driving device 21 and a first light-emitting driving device 22. The first touch driving device 21 includes a touch integrated circuit (IC), and the first light-emitting driving device 22 includes a light-emitting driving integrated circuit (IC).

[0050] The first touch layer 30 is disposed on the side of the first insulating layer 11 away from the driving device layer 20. The first touch layer 30 is provided with a first touch electrode 31, which is electrically connected to the first touch driving device 21. Specifically, the first display substrate 1 further includes a plurality of first vias 111, each of which penetrates the first insulating layer 11. The first touch electrode 31 includes an electrode portion 311 and a connecting portion 312. The electrode portion 311 is located on the side of the first insulating layer 11 away from the driving device layer 20, and the connecting portion 312 is located within the first via 111. The electrode portion 311 is electrically connected to the first touch driving device 21 through the connecting portion 312.

[0051] The light-emitting device bonding layer 40 is disposed on the side of the first touch layer 30 away from the driving device layer 20. The light-emitting device bonding layer 40 is provided with a bonding electrode 41, which is electrically connected to the first light-emitting driving device 22. The light-emitting device 50 is disposed on the side of the light-emitting device bonding layer 40 away from the first touch layer 30 and is bonded to the bonding electrode 41. The first light-emitting driving device 22 is used to drive the light-emitting device 50 to emit light. The light-emitting device 50 includes at least one of a light-emitting diode (LED), a micro light-emitting diode (Micro-LED), or a mini light-emitting diode (Mini-LED). Optionally, the first display substrate 1 can be formed by bonding the light-emitting device 50 to a printed circuit board (PCB), that is, the first display substrate 1 is an LED light-emitting substrate using a PCB base.

[0052] Thus, by integrating the first touch layer 30 into the first display substrate 1 and directly electrically connecting the first touch electrode 31 of the first touch layer 30 to the first touch driver 21 through holes drilled in the first display substrate 1, the first touch layer 30 is free of touch bezels, solving the problem of touch bezels in existing large-screen displays using external capacitive touch solutions. Furthermore, since the first display substrate 1 is free of touch bezels, when it is placed in the seam between adjacent second display substrates 2, the entire seam area can be used for display, thereby completely eliminating the seam and achieving a seamless display panel 100.

[0053] Next, it will be explained in detail how to achieve the electrical connection between the first touch electrode 31 and the first touch driver 21, and the electrical connection between the light-emitting device 50 and the first light-emitting driver 22.

[0054] Continue to refer to Figure 2 The first touch electrode 31 includes a first driving electrode 31T and a first sensing electrode 31R. The first driving electrode 31T includes a driving electrode portion 311T and a driving connection portion 312T, and the first sensing electrode 31R includes a sensing electrode portion 311R and a sensing connection portion 312R. The driving electrode portion 311T and the sensing electrode portion 311R are located on different layers. For example, the first display substrate 1 also includes a second insulating layer 12. The second insulating layer 12 is located on the side of the first insulating layer 11 away from the driving device layer 20. The driving electrode portion 311T is located on the side of the second insulating layer 12 away from the first insulating layer 11, and the sensing electrode portion 311R is located on the side of the second insulating layer 12 close to the first insulating layer 11.

[0055] The first via 111 includes a first sub-via 1111 and a second sub-via 1112. The first sub-via 1111 penetrates the second insulating layer 12 and the first insulating layer 11, and the second sub-via 1112 penetrates the first insulating layer 11. The driving connection portion 312T is located within the first sub-via 1111, and the driving electrode portion 311T is electrically connected to the first touch driving device 21 through the driving connection portion 312T. The sensing connection portion 312R is located within the second sub-via 1112, and the sensing electrode portion 311R is electrically connected to the first touch driving device 21 through the sensing connection portion 312R.

[0056] Furthermore, the first display substrate 1 also includes a signal line layer 60, a third insulating layer 13, and a fourth insulating layer 14. The signal line layer 60 is disposed on the side of the first insulating layer 11 near the first touch layer 30, and includes signal traces 61 electrically connected between the first light-emitting driver 22 and the bonding electrode 41. The third insulating layer 13 is disposed between the signal line layer 60 and the first touch layer 30, serving to isolate the signal line layer 60 and the first touch layer 30. The fourth insulating layer 14 is disposed between the first touch layer 30 and the light-emitting device bonding layer 40, serving to isolate the first touch layer 30 and the light-emitting device bonding layer 40.

[0057] Optionally, the first insulating layer 11, the second insulating layer 12, the third insulating layer 13, and the fourth insulating layer 14 are all made of the same material, such as resin. The signal line layer 60 and the first touch electrode 31 of the first touch layer 30 are also made of the same material, such as copper.

[0058] The first display substrate 1 further includes a plurality of second vias 112 and third vias 113. The second vias 112 penetrate the fourth insulating layer 14, the first touch layer 30 and the third insulating layer 13. The third vias 113 penetrate the first insulating layer 11. The bonding electrode 41 is electrically connected to the signal trace 61 through the second vias 112. The signal trace 61 is electrically connected to the first light-emitting driver 22 through the third vias 113.

[0059] The signal trace 61 includes a first signal trace 61S and a second signal trace 61D that are insulated from each other. The bonding electrode 41 includes a first bonding electrode 41S and a second bonding electrode 41D that are insulated from each other. The first signal trace 61S is electrically connected to the first bonding electrode 41S, and the second signal trace 61D is electrically connected to the second bonding electrode 41D. The first signal trace 61S is used to provide a positive signal to the light-emitting device 50, and the second signal trace 61D is used to provide a negative signal to the light-emitting device 50.

[0060] It should be noted that when the second via 112 penetrates the first touch layer 30, the first touch electrode 31 of the first touch layer 30 avoids the second via 112, preventing the second via 112 from passing through the first touch electrode 31 and thus affecting the touch performance of the first touch layer 30. For example, the first driving electrode 31T and the first sensing electrode 31R of the first touch layer 30 are arranged in an insulated, intersecting grid pattern, and the second via 112 can pass through the grid formed by the first driving electrode 31T and the first sensing electrode 31R.

[0061] Specifically, the first driving electrode 31T extends along the first direction X and is spaced apart along the second direction Y; the first sensing electrode 31R extends along the second direction Y and is spaced apart along the first direction X, so that the first driving electrode 31T and the first sensing electrode 31R intersect in an insulating manner to form a grid. Both the first direction X and the second direction Y are parallel to the plane containing the first insulating layer 11, and the first direction X and the second direction Y intersect at an angle, for example, 90 degrees. In this case, the first direction X and the second direction Y are perpendicular.

[0062] Optionally, the linewidth D1 of the first driving electrode 31T ranges from 30 micrometers to 100 micrometers, and the linewidth D2 of the first sensing electrode 31R also ranges from 30 micrometers to 100 micrometers, for example, both can be 30 micrometers, 40 micrometers, 50 micrometers, 60 micrometers, 70 micrometers, 100 micrometers, etc. The line spacing L1 between adjacent first driving electrodes 31T is greater than or equal to 50 micrometers, and the line spacing L2 between adjacent first sensing electrodes 31R is also greater than or equal to 50 micrometers, for example, both can be 50 micrometers, 60 micrometers, 70 micrometers, etc. Preferably, the linewidth D1 of the first driving electrode 31T is equal to the linewidth D2 of the first sensing electrode 31R, the line spacing L1 between adjacent first driving electrodes 31T is equal to the line spacing L2 between adjacent first sensing electrodes 31R, and the linewidth D1 of the first driving electrode 31T is also equal to the line spacing L1 between adjacent first driving electrodes 31T. For example, the linewidth can be 50 micrometers and the line spacing can be 50 micrometers to be compatible with the manufacturing process when the first display substrate 1 uses a PCB base.

[0063] Continue to refer to Figure 3 The first sub-hole 1111 can be disposed corresponding to one end of the first driving electrode 31T, and the second sub-hole 1112 can be disposed corresponding to one end of the first sensing electrode 31R. However, this application is not limited to this. The first sub-hole 1111 can also be located at the opposite ends of the first driving electrode 31T and the middle region of the first driving electrode 31T. Similarly, the second sub-hole 1112 can also be located at the opposite ends of the first sensing electrode 31R and the middle region of the first sensing electrode 31R, so that each first driving electrode 31T and each first sensing electrode 31R has multiple connection points, such as... Figure 4 As shown. Thus, by providing multiple connection points on each of the first driving electrodes 31T and each of the first sensing electrodes 31R, the stability of the electrical connection between the first touch electrode 31 and the first touch driving device 21 can be improved, and the voltage drop of the first touch electrode 31 can be reduced.

[0064] Reference Figure 5 The second display substrate 2 includes a light-emitting substrate 70 and a second touch layer 80 located on the light-emitting side of the light-emitting substrate 70. The second touch layer 80 is provided with a second touch electrode 81 and touch traces 82 located on the side of the second touch electrode 81 away from the first display substrate 1. Each touch trace 82 is electrically connected to one second touch electrode 81.

[0065] Specifically, the light-emitting substrate 70 includes a backlight module 71 and a first substrate 72 and a second substrate 73 disposed in the light-emitting direction of the backlight module 71. Optionally, the first substrate 72 is an array substrate and the second substrate 73 is a color filter substrate, but this application is not limited to this. The first substrate 72 in this application may also be a GOA (Gate Driver on Array) substrate or a COA (Color-filter on Array) substrate, etc.

[0066] The light-emitting substrate 70 further includes a liquid crystal layer 74 and a sealant 75 disposed between the first substrate 72 and the second substrate 73. The sealant 75 surrounds the liquid crystal layer 74 to block moisture and bond the first substrate 72 and the second substrate 73 together. Naturally, the light-emitting substrate 70 also includes a first polarizer 76 located between the first substrate 72 and the backlight module 71, and a second polarizer 77 located between the second substrate 73 and the touch layer.

[0067] The backlight module 71 provides backlight to the light-emitting substrate 70. The backlight from the backlight module 71 is polarized by the first polarizer 76 and then directed onto the liquid crystal layer 74. The liquid crystal molecules in the liquid crystal layer 74 are deflected under the influence of an electric field. These deflected liquid crystal molecules refract the backlight provided by the backlight module 71 onto the second substrate 73. A color filter is disposed on the second substrate 73. This color filter enables the backlight to display different colors after passing through the second substrate 73, and after being polarized by the second polarizer 77, it is emitted to achieve image display on the light-emitting substrate 70. The color filter is not limited to being disposed on the second substrate 73; for example, when the first substrate 72 is a COA substrate, the color filter is disposed on the first substrate 72.

[0068] Combined with reference Figure 5 and Figure 6The second touch layer 80 is disposed on the side of the second polarizer 77 away from the second substrate 73. The second touch electrode 81 of the second touch layer 80 also includes a second driving electrode 81T and a second sensing electrode 81R, both located within the second display area AA2. The second driving electrode 81T extends along the first direction X and is spaced apart along the second direction Y; the second sensing electrode 81R extends along the second direction Y and is spaced apart along the first direction X.

[0069] The touch traces 82 of the touch layer are located within the first non-display area NA1 and extend from the first non-display area NA1 to the second non-display area NA2. Each touch trace 82 is electrically connected to a second driving electrode 81T. The second driving electrode 81T is electrically connected to a second touch driving device through the touch trace 82. The second touch driving device is disposed on the flip-chip film 3. Similarly, the second sensing electrode 81R is also electrically connected to the second touch driving device through a corresponding touch trace 82. The touch trace 82 corresponding to the second sensing electrode 81R can be directly disposed in the second non-display area NA2.

[0070] Thus, by setting the touch traces 82 of the second touch layer 80 on the side of the second touch electrode 81 away from the first display substrate 1, that is, by not setting the touch traces 82 of the second touch layer 80 on the side of the second display substrate 2 close to the first display substrate 1, the splicing area of ​​the second display substrate 2 is free of touch borders, thereby further improving the display quality of the display panel 100.

[0071] In one embodiment, please refer to Figures 1 to 7 , Figure 7 for Figure 1 Another cross-sectional view of the first display substrate 1 is shown. Unlike the embodiments described above, referring to... Figure 7 The first touch electrode 31 includes a first driving electrode 31T and a first sensing electrode 31R, which are disposed in the same layer. The first touch layer 30 also includes a bridging electrode 32, through which the first driving electrode 31T or the first sensing electrode 31R is bridged. The bridging electrode 32 is located on the side of the first driving electrode 31T and the first sensing electrode 31R away from the driving device layer 20. This embodiment takes the electrical connection between the first driving electrode 31T and the bridging electrode 32 as an example. The bridging electrode 32 is electrically connected to the first driving electrode 31T through a fourth via 114.

[0072] Thus, when the first driving electrode 31T and the first sensing electrode 31R are disposed in the same layer, the bridging electrode 32 is disposed on the side of the first driving electrode 31T and the first sensing electrode 31R away from the driving device layer 20, which can reduce the influence of the bridging electrode 32 on the setting of the first sub-hole 1111 and the second sub-hole 1112. Other descriptions are as described in the above embodiments and will not be repeated here.

[0073] In one embodiment, please refer to Figures 1 to 8 , Figure 8 for Figure 1 Another cross-sectional view of the first display substrate 1 is shown. Unlike the embodiments described above, this is a schematic diagram with reference to... Figure 8 The first display substrate 1 further includes a first shielding layer 91, a second shielding layer 92, a fifth insulating layer 15, and a sixth insulating layer 16. The first shielding layer 91 is disposed on the side of the third insulating layer 13 away from the signal line layer 60. The fifth insulating layer 15 is disposed between the first shielding layer 91 and the first touch layer 30. The second shielding layer 92 is disposed on the side of the fourth insulating layer 14 away from the first touch layer 30. The sixth insulating layer 16 is disposed between the second shielding layer 92 and the light-emitting device bonding layer 40. Both the first shielding layer 91 and the second shielding layer 92 have a constant potential.

[0074] Optionally, the first shielding layer 91, the second shielding layer 92, the signal line layer 60, and the first touch electrode 31 are made of the same material. The fifth insulating layer 15 and the sixth insulating layer 16 are made of the same material as the first insulating layer 11.

[0075] In this embodiment, by providing a first shielding layer 91 between the signal line layer 60 and the first touch layer 30, and setting a constant potential on the first shielding layer 91, such as grounding the first shielding layer 91, interference from the signal traces 61 of the signal line layer 60 to the first touch layer 30 can be shielded. Similarly, by providing a second shielding layer 92 between the first touch layer 30 and the light-emitting device bonding layer 40, and setting a constant potential on the second shielding layer 92, such as grounding the second shielding layer 92, interference from the light-emitting device bonding layer 40 to the first touch layer 30 can be shielded. Other descriptions are as described in the above embodiment and will not be repeated here.

[0076] Based on the same inventive concept, this application also provides an electronic device, which includes a display panel 100 of one of the foregoing embodiments.

[0077] As can be seen from the above embodiments:

[0078] In a display panel and electronic device provided in this application, the display panel includes at least one first display substrate. The first display substrate includes a driving device layer, a first insulating layer, a first touch layer, a light-emitting device bonding layer, and a light-emitting device stacked on top of each other. The first touch layer is provided with a first touch electrode, which is electrically connected to the first touch driving device through a first through-hole penetrating the first insulating layer. Thus, by integrating the touch layer into the first display substrate and drilling holes in the first display substrate to directly electrically connect the touch electrode of the touch layer to the first touch driving device, the touch layer does not have a touch bezel, solving the problem of touch bezels in existing large-screen displays using external capacitive touch solutions.

[0079] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0080] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, Includes at least one first display substrate (1), the first display substrate (1) comprising: First insulating layer (11); A driving device layer (20) is disposed on one side of the first insulating layer (11), and the driving device layer (20) includes a first touch driving device (21) and a first light-emitting driving device (22). The first touch layer (30) is disposed on the side of the first insulating layer (11) away from the driving device layer (20). The first touch layer (30) is provided with a first touch electrode (31), which is electrically connected to the first touch driving device (21). A light-emitting device bonding layer (40) is disposed on the side of the first touch layer (30) away from the driving device layer (20). The light-emitting device bonding layer (40) is provided with a bonding electrode (41), which is electrically connected to the first light-emitting driving device (22). A light-emitting device (50) is disposed on the side of the light-emitting device bonding layer (40) away from the first touch layer (30) and bonded to the bonding electrode (41); The first display substrate (1) further includes a plurality of first vias (111), each of which penetrates the first insulating layer (11). The first touch electrode (31) includes an electrode portion (311) and a connecting portion (312). The electrode portion (311) is located on the side of the first insulating layer (11) away from the driving device layer (20). The connecting portion (312) is located inside the first via (111). The electrode portion (311) is electrically connected to the first touch driving device (21) through the connecting portion (312). The first display substrate (1) further includes: a signal line layer (60) disposed on the side of the first insulating layer (11) near the first touch layer (30), the signal line layer (60) including signal traces (61), the signal traces (61) being electrically connected between the first light-emitting driver (22) and the bonding electrode (41); a third insulating layer (13) disposed between the signal line layer (60) and the first touch layer (30); and a fourth insulating layer (14) disposed between the first touch layer (30) and the light-emitting device bonding layer (40); wherein, the first display substrate (1) further includes a plurality of second vias (112) and third vias (113), the signal line layer (60) being disposed between the first insulating layer (112) and the first touch layer (30); and a fourth insulating layer (14) disposed between the first touch layer (30) and the light-emitting device bonding layer (40); wherein, the first display substrate (1) further includes a plurality of second vias (112) and third vias (113), the signal line layer (60) being disposed between the first insulating layer (112) and the first touch layer (30); and a fourth insulating layer (14) disposed between the first touch layer (30) and the first light-emitting device bonding layer (40); The second via (112) penetrates the fourth insulating layer (14), the first touch layer (30), and the third insulating layer (13). The third via (113) penetrates the first insulating layer (11). The bonding electrode (41) is electrically connected to the signal trace (61) through the second via (112). The signal trace (61) is electrically connected to the first light-emitting driver (22) through the third via (113). The first touch electrode (31) of the first touch layer (30) avoids the second via (112). When the first touch layer (30) also includes a bridging electrode (32), the bridging electrode (32) avoids the second via (112).

2. The display panel according to claim 1, characterized in that, The first touch electrode (31) includes a first driving electrode (31T) and a first sensing electrode (31R). The first driving electrode (31T) and the first sensing electrode (31R) are disposed in the same layer. The first touch layer (30) also includes a bridging electrode (32). The first driving electrode (31T) or the first sensing electrode (31R) is bridged by the bridging electrode (32). The bridging electrode (32) is located on the side of the first driving electrode (31T) and the first sensing electrode (31R) away from the driving device layer (20).

3. The display panel according to claim 1, characterized in that, The first touch electrode (31) includes a first driving electrode (31T) and a first sensing electrode (31R). The first driving electrode (31T) includes a driving electrode portion (311T) and a driving connection portion (312T). The first sensing electrode (31R) includes a sensing electrode portion (311R) and a sensing connection portion (312R). The first display substrate (1) further includes a second insulating layer (12), the second insulating layer (12) being located on the side of the first insulating layer (11) away from the driving device layer (20), the driving electrode portion (311T) being located on the side of the second insulating layer (12) away from the first insulating layer (11), and the sensing electrode portion (311R) being located on the side of the second insulating layer (12) close to the first insulating layer (11); The first via (111) includes a first sub-hole (1111) and a second sub-hole (1112). The first sub-hole (1111) penetrates the second insulating layer (12) and the first insulating layer (11). The second sub-hole (1112) penetrates the first insulating layer (11). The driving connection part (312T) is located in the first sub-hole (1111). The driving electrode part (311T) is electrically connected to the first touch driver device (21) through the driving connection part (312T). The sensing connection part (312R) is located in the second sub-hole (1112). The sensing electrode part (311R) is electrically connected to the first touch driver device (21) through the sensing connection part (312R).

4. The display panel according to claim 3, characterized in that, The linewidth of the first driving electrode (31T) and the first sensing electrode (31R) ranges from 30 micrometers to 100 micrometers. The line spacing between adjacent first driving electrodes (31T) is greater than or equal to 50 micrometers, and the line spacing between adjacent first sensing electrodes (31R) is greater than or equal to 50 micrometers.

5. The display panel according to claim 1, characterized in that, The first display substrate (1) further includes: The first shielding layer (91) is disposed on the side of the third insulating layer (13) away from the signal line layer (60); A fifth insulating layer (15) is disposed between the first shielding layer (91) and the first touch layer (30); The second shielding layer (92) is disposed on the side of the fourth insulating layer (14) away from the first touch layer (30); A sixth insulating layer (16) is disposed between the second shielding layer (92) and the light-emitting device bonding layer (40); Both the first shielding layer (91) and the second shielding layer (92) have constant potentials.

6. The display panel according to claim 5, characterized in that, The first shielding layer (91), the second shielding layer (92), the signal line layer (60), and the first touch electrode (31) are made of the same material.

7. The display panel according to any one of claims 1 to 6, characterized in that, The display panel also includes a plurality of second display substrates (2), which are spliced ​​together, and the first display substrate (1) is located at the splicing point of two adjacent second display substrates (2).

8. The display panel according to claim 7, characterized in that, The second display substrate (2) includes a light-emitting substrate (70) and a second touch layer (80) located on the light-emitting side of the light-emitting substrate (70). The second touch layer (80) is provided with a second touch electrode (81) and a touch trace (82) located on the side of the second touch electrode (81) away from the first display substrate (1). Each touch trace (82) is electrically connected to one second touch electrode (81).

9. An electronic device, characterized in that, Includes the display panel as described in any one of claims 1 to 8.

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