Touch panel and display device

Abstract

The present disclosure provides a touch panel and a display device. The touch panel includes a touch display area and a peripheral area surrounding the touch display area. The touch panel includes: a substrate; a light emitting unit arranged on one side of the substrate and located in the touch display area; a first inorganic encapsulation layer arranged on a side of the light emitting unit away from the substrate; a shielding structure arranged on a side of the first inorganic encapsulation layer away from the substrate and located in the touch display area; a first organic encapsulation layer arranged on a side of the shielding structure away from the substrate; a second inorganic encapsulation layer arranged on a side of the first organic encapsulation layer away from the substrate; and a touch electrode arranged on a side of the second inorganic encapsulation layer away from the light emitting unit, the touch electrode being located in the touch display area. The present disclosure can improve the touch effect.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, and in particular, to a touch panel and display device. BACKGROUND

[0002] Touch technology mainly includes resistance, capacitance and infrared optical type. Among them, the capacitance touch technology has the characteristics of sensitive reaction, and is widely used in smart phones and tablet computers. The touch effect of the existing touch panel is poor. SUMMARY

[0003] The purpose of the present disclosure is to provide a touch panel and display device, which can improve the touch effect.

[0004] According to one aspect of the present disclosure, a touch panel is provided, comprising a touch display area and a peripheral area, the peripheral area surrounds the touch display area, and the touch panel comprises:

[0005] a substrate;

[0006] a light emitting unit arranged on one side of the substrate and located in the touch display area;

[0007] a first inorganic encapsulation layer arranged on the side of the light emitting unit away from the substrate;

[0008] a shielding structure arranged on the side of the first inorganic encapsulation layer away from the substrate and located in the touch display area;

[0009] a first organic encapsulation layer arranged on the side of the shielding structure away from the substrate;

[0010] a second inorganic encapsulation layer arranged on the side of the first organic encapsulation layer away from the substrate;

[0011] a touch electrode arranged on the side of the second inorganic encapsulation layer away from the light emitting unit, and the touch electrode is located in the touch display area.

[0012] Further, the shielding structure comprises a metal shielding layer.

[0013] Further, the number of the light emitting units is multiple and arranged at intervals, and the touch panel further comprises a pixel definition layer surrounding the multiple light emitting units, and the orthogonal projection of the metal shielding layer on the substrate is located in the orthogonal projection area of the pixel definition layer on the substrate.

[0014] Further, the orthogonal projection of the metal shielding layer on the substrate is in a grid structure, and the orthogonal projection of the light emitting unit on the substrate is located in the mesh of the grid structure.

[0015] Further, the touch panel further comprises:

[0016] A first light-absorbing film covers a surface of the metal shielding layer, and a normal projection of the first light-absorbing film on the substrate is located within a normal projection area of the pixel defining layer on the substrate.

[0017] Further, the touch panel includes a color film including a plurality of color resist blocks and a black matrix surrounding the plurality of color resist blocks, the plurality of color resist blocks corresponding to the plurality of light emitting units one-to-one, and the black matrix covering the metal shielding layer.

[0018] Further, the shielding structure further includes:

[0019] A transparent conductor layer is disposed on a side of the metal shielding layer away from the light emitting unit or between the metal shielding layer and the light emitting unit.

[0020] Further, the shielding structure includes a transparent conductor layer.

[0021] Further, the touch panel further includes:

[0022] A third inorganic encapsulating layer covers the light emitting unit.

[0023] A second organic encapsulating layer is disposed on a side of the third inorganic encapsulating layer away from the substrate.

[0024] The first inorganic encapsulating layer is disposed on a side of the second organic encapsulating layer away from the substrate.

[0025] Further, the touch panel further includes:

[0026] A buffer layer is disposed on a surface of the shielding structure facing the substrate.

[0027] Further, the touch panel further includes:

[0028] A planar layer is disposed on a surface of the shielding structure away from the substrate.

[0029] Further, a normal projection of the shielding structure on the substrate overlaps with a normal projection of the touch electrode on the substrate.

[0030] Further, the light emitting unit includes a first electrode, a light emitting layer, and a second electrode disposed in a stack, the first electrode being located between the second electrode and the substrate; and the touch panel further includes:

[0031] A first metal layer is disposed in the same layer as the first electrode, a normal projection of the first metal layer on the substrate is spaced apart from a normal projection of the second electrode on the substrate, and the shielding structure is electrically connected to the first metal layer through a first via.

[0032] Further, the light emitting unit comprises a first electrode, a light emitting layer and a second electrode which are stacked, and the first electrode is located between the second electrode and the substrate;

[0033] The touch panel further comprises a bridge metal layer and a touch insulating layer, the bridge metal layer is located on a side of the shielding structure away from the substrate, the touch insulating layer is located on a side of the bridge metal layer away from the substrate, and the touch electrode is located on a side of the touch insulating layer away from the substrate.

[0034] The touch panel further comprises a second metal layer, the second metal layer is arranged in the same layer as the bridge metal layer, and a projection of the second metal layer on the substrate is spaced from a projection of the second electrode on the substrate; and the shielding structure is electrically connected to the second metal layer through a second via.

[0035] Further, the light emitting unit comprises a first electrode, a light emitting layer and a second electrode which are stacked, and the first electrode is located between the second electrode and the substrate;

[0036] The touch panel further comprises a second light absorbing film, the second light absorbing film covers the touch electrode, and a projection of the second light absorbing film on the substrate is located in a projection area of the pixel defining layer on the substrate.

[0037] According to an aspect of the present disclosure, a display device is provided, comprising the touch panel.

[0038] The touch panel and the display device of the present disclosure, the shielding structure is located in the touch display area and between the light emitting unit and the touch electrode, so that the coupling capacitance between the electrode of the light emitting unit and the touch electrode can be reduced, the signal interference between the electrode of the light emitting unit and the touch electrode is reduced, and the touch effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 FIG. 1 is a schematic view of a touch panel according to an embodiment of the present disclosure.

[0040] Figure 2 FIG. 2 is a schematic view of a touch panel with a first light absorbing film according to an embodiment of the present disclosure.

[0041] Figure 3 FIG. 3 is a schematic view of a touch panel with a color film according to an embodiment of the present disclosure.

[0042] Figure 4 FIG. 4 is a schematic view of a touch panel with a transparent conductor layer according to an embodiment of the present disclosure.

[0043] Figure 5 and Figure 6 is a schematic diagram of a touch panel with a buffer layer in an embodiment of the present disclosure.

[0044] Figure 7 and Figure 8 is a schematic diagram of a touch panel with a first metal layer in an embodiment of the present disclosure.

[0045] Figure 9 is a schematic diagram of a touch panel with a second metal layer in an embodiment of the present disclosure.

[0046] Figure 10 is a schematic diagram of a touch panel with a second light-absorbing film in an embodiment of the present disclosure.

[0047] Figure 11 is a schematic diagram of a pixel circuit in an embodiment of the present disclosure.

[0048] Figure 12 is another schematic diagram of a touch panel in an embodiment of the present disclosure.

[0049] BRIEF DESCRIPTION OF DRAWINGS 1, substrate; 2, gate insulating layer; 3, interlayer insulating layer; 4, metal shielding layer; 5, first source-drain electrode layer; 6, second source-drain electrode layer; 7, touch insulating layer; 8, active layer; 9, gate electrode layer; 10, first electrode; 11, light-emitting layer; 12, second electrode; 13, touch buffer layer; 14, buffer layer; 15, bridging metal layer; 16, first touch electrode; 17, second touch electrode; 18, planarization layer; 19, first inorganic encapsulating layer; 20, first organic encapsulating layer; 21, second inorganic encapsulating layer; 22, pixel defining layer; 23, first light-absorbing film; 24, color-resistance block; 25, black matrix; 26, transparent conductor layer; 27, second organic encapsulating layer; 28, third inorganic encapsulating layer; 30, first via hole; 31, first metal layer; 32, second metal layer; 33, second via hole; 34, third metal layer; 35, first planarization layer; 36, second planarization layer; 37, second light-absorbing film; 38, touch lead; 39, touch chip; 40, touch protection layer; 100, touch electrode; 200, light-emitting unit; 300, shielding structure; 500, color film; 600, touch display area; 700, peripheral area. DETAILED DESCRIPTION

[0050] The exemplary embodiments will be described in detail herein below with reference to the drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the exemplary embodiments with no contribution to furthering the understanding of the present disclosure. The following exemplary embodiments described in the detailed description section are examples in which the specific language and / or example materials are used to provide a thorough description of the embodiments. However, the exemplary embodiments described and pictured herein are not necessarily to be construed as excluding from the scope of the present disclosure all embodiments that would be more conforming, constructed, located, manufactured, produced, or transported otherwise but are intended to cover all implementations of the embodiments claimed.

[0051] The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Unless otherwise defined, technical terms or scientific terms used in the present disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The words "first", "second", and similar

[0052] In the related art, a flexible multi layer on cell (FMLOC) refers to a touch panel in which a mutual capacitance touch device is manufactured on the outside of a display panel thin film encapsulation layer. The FMLOC can integrate a display structure and a touch structure together, has advantages of thinness and foldability, and can satisfy product requirements for flexibility, foldability, and narrow bezels. As the size of a display panel increases, touch noise increases. In particular, in the FMLOC structure, a touch electrode is closer to a cathode, a load capacitance is larger, and the intensity of touch noise received through the load capacitance coupling is also larger, which reduces the touch effect.

[0053] Embodiments of the present disclosure provide a touch panel. The touch panel can include a touch display area and a peripheral area. The peripheral area can surround the touch display area. As shown in FIG. 1, the touch panel can include a substrate 1, a light emitting unit 200, a first inorganic encapsulation layer 19, a first organic encapsulation layer 20, a second inorganic encapsulation layer 21, a shielding structure 300, and a touch electrode 100, wherein: Figure 1

[0054] ​The light emitting unit 200 is arranged on one side of the substrate 1. The light emitting unit 200 is located in the touch display area. The first inorganic encapsulation layer 19 can be arranged on the side of the light emitting unit 200 away from the substrate 1. The shielding structure 300 is arranged on the side of the first inorganic encapsulation layer 19 away from the substrate 1. The shielding structure 300 is located in the touch display area. The first organic encapsulation layer 20 can be arranged on the side of the first inorganic encapsulation layer 19 away from the substrate 1. The second inorganic encapsulation layer 21 can be arranged on the side of the first organic encapsulation layer 20 away from the substrate 1. The touch electrode 100 is arranged on the side of the second inorganic encapsulation layer 21 away from the light emitting unit 200. The touch electrode 100 is located in the touch display area.

[0055] The touch panel of the embodiment of the present disclosure, the shielding structure 300 is located in the touch display area and between the light emitting unit 200 and the touch electrode 100. In this way, the coupling capacitance between the electrode of the light emitting unit 200 and the touch electrode 100 can be reduced, the signal interference between the electrode of the light emitting unit 200 and the touch electrode 100 is reduced, the touch noise intensity is reduced, and the touch effect is improved.

[0056] The parts of the touch panel of the embodiment of the present disclosure will be described in detail as follows:

[0057] As shown in Figure 1 The substrate 1 can be a rigid substrate. The rigid substrate can be a glass substrate or a PMMA (Polymethyl methacrylate) substrate, etc. Of course, the substrate 1 can also be a flexible substrate. The flexible substrate can be a PET (Polyethylene terephthalate) substrate, a PEN (Polyethylene naphthalate two formic acid glycol ester) substrate, or a PI (Polyimide) substrate.

[0058] As shown in Figure 1 The touch panel of the present disclosure can further include an active layer 8, a gate insulating layer 2, a gate electrode layer 9, an interlayer insulating layer 3, and a first source-drain electrode layer 5. The active layer 8 can be arranged on the substrate 1. The gate insulating layer 2 can be arranged on the substrate 1 and cover the active layer 8. The gate electrode layer 9 can be arranged on the side of the gate insulating layer 2 away from the substrate 1. The interlayer insulating layer 3 can be arranged on the gate insulating layer 2 and cover the gate electrode layer 9. The first source-drain electrode layer 5 can be arranged on the interlayer insulating layer 3, and part of the pattern of the first source-drain electrode layer 5 can be connected to the active layer 8 through a via hole passing through the interlayer insulating layer 3 and the gate insulating layer 2.

[0059] As shown in Figure 1As shown, the touch panel of the present disclosure can further include a first planarization layer 35 and a second source-drain electrode layer 6. The first planarization layer 35 covers the first source-drain electrode layer 5 and the interlayer insulating layer 3. The second source-drain electrode layer 6 can be disposed on the first planarization layer 35, and part of the pattern of the second source-drain electrode layer 6 can be electrically connected to the first source-drain electrode layer 5 described above through a via hole passing through the first planarization layer 35. The touch panel of the present disclosure can further include a second planarization layer 36. The second planarization layer 36 can cover the second source-drain electrode layer 6. The touch panel of the present disclosure can include a pixel circuit. The active layer 8, the gate insulating layer 2, the gate electrode layer 9, the interlayer insulating layer 3, and the first source-drain electrode layer 5 described above can constitute a driving transistor. As shown, Figure 11 As shown, the pixel circuit can be a 7T1C pixel circuit, which can include a driving transistor T1, a data writing transistor T3, a compensation transistor T2, a first light-emitting control transistor T6, a second light-emitting control transistor T7, a first reset transistor T4, a second reset transistor T5, and a storage capacitor C, etc.

[0060] As shown, Figure 1 The light-emitting unit 200 is disposed on one side of the substrate 1. The number of the light-emitting unit 200 can be multiple, and the multiple light-emitting units 200 are disposed at intervals in a direction parallel to the substrate 1. The multiple light-emitting units 200 can include a red light-emitting unit, a green light-emitting unit, and a blue light-emitting unit. Each light-emitting unit 200 can include a first electrode 10, a second electrode 12, and a light-emitting layer 11. The light-emitting layer 11 can be an organic electroluminescent layer, and of course, can also be a quantum dot light-emitting layer, and the present disclosure does not make special limitations on this. The first electrode 10 can be an anode, and the second electrode 12 can be a cathode, but the present disclosure is not limited to this. The first electrode 10 can be disposed on a side of the second planarization layer 36 away from the substrate 1, the light-emitting layer 11 can be disposed on a side of the first electrode 10 away from the substrate 1, and the second electrode 12 can be disposed on a side of the light-emitting layer 11 away from the substrate 1. The first electrode 10 is electrically connected to the second source-drain electrode layer 6 through a via hole passing through the second planarization layer 36. The multiple light-emitting units 200 can share one second electrode 12. As shown, Figure 1 As shown, the touch panel of the present disclosure can further include a pixel defining layer 22. The pixel defining layer 22 can surround the multiple light-emitting units 200. The pixel defining layer 22 covers the second planarization layer 36 and the first electrode 10, and the pixel defining layer 22 is provided with a pixel opening exposing the first electrode 10.

[0061] The touch panel of the present disclosure can further include a touch structure. As shown, Figure 1As shown, the touch structure can include a touch buffer layer 14, a bridge metal layer 15, a touch insulating layer 7, a touch electrode 100, and a touch protection layer 40. The touch buffer layer 14 can be disposed on the side of the light emitting unit 200 opposite to the substrate 1. The bridge metal layer 15 can be disposed on the surface of the touch buffer layer 14 opposite to the substrate 1. The touch insulating layer 7 covers the bridge metal layer 15 and the touch buffer layer 14. The touch electrode 100 is disposed on the surface of the touch insulating layer 7 opposite to the substrate 1. As shown in Figure 12 As shown, the touch electrode 100 can include a first touch electrode 16 and a second touch electrode 17 arranged in a cross manner. In the region where the first touch electrode 16 and the second touch electrode 17 cross, the first touch electrode 16 is connected through the bridge metal layer 15. One of the first touch electrode 16 and the second touch electrode 17 is a touch sensing electrode, and the other is a touch driving electrode. The first touch electrode 16 and the second touch electrode 17 are also metal mesh structures. Figure 12 As shown, the region surrounded by the line L1 is the touch display area 600 (see Figure 7 ). The peripheral area 700 of the touch panel can also be provided with a touch chip 39 and a touch lead 38 connecting the touch chip 39 and the touch electrode 100. As shown in Figure 1 As shown, the touch protection layer 40 can cover the touch electrode 100 and the touch insulating layer 7. The touch protection layer 40 can form a microlens unit, which can be disposed on the light emitting side of the light emitting unit 200 to improve the light emitting efficiency. In addition, in order to avoid affecting the display effect, the orthographic projection of the touch electrode 100 on the substrate 1 can be located within the orthographic projection area of the pixel definition layer 22 on the substrate 1.

[0062] As shown in Figure 1 The shielding structure 300 can be disposed between the light emitting unit 200 and the touch electrode 100, and located in the touch display area. In this way, the coupling capacitance between the second electrode 12 of the light emitting unit 200 and the touch electrode 100 can be reduced, and the signal interference between the second electrode 12 of the light emitting unit 200 and the touch electrode 100 can be reduced. The orthographic projection of the shielding structure 300 on the substrate 1 overlaps with the orthographic projection of the touch electrode 100 on the substrate 1, and the overlapping region is located within the orthographic projection area of the second electrode 12 on the substrate 1.

[0063] As shown in Figure 1As shown, the shielding structure 300 can be disposed on the surface of the first inorganic encapsulation layer 19 facing away from the substrate 1. The shielding structure 300 may include a metal shielding layer 4. The metal shielding layer 4 can be disposed on the surface of the first inorganic encapsulation layer 19 facing away from the substrate 1. The material of the metal shielding layer 4 can be Mo, Ti, Ti / Al / Ti, Cu, etc. The orthogonal projection of the metal shielding layer 4 onto the substrate 1 can be located within the orthogonal projection area of ​​the pixel defining layer 22 onto the substrate 1. This arrangement prevents the light emitted by the light-emitting unit 200 from being blocked by the metal shielding layer 4. Furthermore, the orthogonal projection of the metal shielding layer 4 onto the substrate 1 can be a grid structure. The orthogonal projection of the light-emitting unit 200 onto the substrate 1 is located within the mesh openings of the grid structure. For example, only one orthogonal projection of the light-emitting unit 200 is located within one mesh opening of the grid structure. The first inorganic encapsulation layer 19 described above serves to block water and oxygen. It is made of inorganic materials, specifically silicon nitride (SiNx), silicon dioxide (SiO2), silicon carbide (SiC), aluminum oxide (Al2O3), zinc sulfide (ZnS), zinc oxide (ZnO), and other materials with water and oxygen barrier properties. The specific process for forming the first inorganic encapsulation layer 19 can be chemical vapor deposition (CVD), magnetron sputtering, or atomic force deposition (ALD). The material of the second inorganic encapsulation layer 21 described above can be the same as that of the first inorganic encapsulation layer 19. The first organic encapsulation layer 20 described above is made of organic materials, specifically acrylic resin, epoxy resin, etc., and its function is stress relief and planarization.

[0064] like Figure 2 As shown, the touch panel of this disclosure may further include a first light-absorbing film 23. This first light-absorbing film 23 can cover the surface of the metal shielding layer 4. Specifically, the first light-absorbing film 23 can cover the top and side surfaces of the metal shielding layer 4. That is, the metal shielding layer 4 is sandwiched between the first light-absorbing film 23 and the first inorganic encapsulation layer 19. This arrangement prevents the metal shielding layer 4 from reflecting external light, thus preventing the display effect from being affected. The top surface of the metal shielding layer 4 is the surface of the metal shielding layer 4 facing away from the substrate 1. Furthermore, the orthographic projection of the first light-absorbing film 23 onto the substrate 1 can be located within the orthographic projection area of ​​the pixel defining layer 22 onto the substrate 1. This arrangement prevents the first light-absorbing film 23 from affecting the light emission of the light-emitting unit 200. The material of the first light-absorbing film 23 can be black ink.

[0065] like Figure 3As shown, the touch panel of this disclosure may further include a color filter 500. The color filter 500 may be disposed on the surface of the first inorganic encapsulation layer 19 facing away from the substrate 1. The color filter 500 may include a plurality of color resist blocks 24 and a black matrix 25 surrounding the plurality of color resist blocks 24. Each of the plurality of color resist blocks 24 corresponds one-to-one with a plurality of light-emitting units 200. The black matrix 25 may cover the metal shielding layer 4; specifically, the black matrix 25 may cover the top and side surfaces of the metal shielding layer 4, that is, the metal shielding layer 4 is sandwiched between the black matrix 25 and the first inorganic encapsulation layer 19. In this disclosure, the color filter 500 replaces the polarizer, reducing the module thickness. Simultaneously, the color filter 500 is located between the touch electrode 100 and the second electrode 12, increasing the distance between the touch electrode 100 and the second electrode 12, which can reduce the load capacitance formed on the touch electrode 100.

[0066] like Figure 4 As shown, the shielding structure 300 of this disclosure may include a transparent conductor layer 26. The transparent conductor layer 26 may be disposed on the side of the metal shielding layer 4 facing away from the light-emitting unit 200. Specifically, the transparent conductor layer 26 may cover the metal shielding layer 4 and the first inorganic encapsulation layer 19. Taking the surface of the metal shielding layer 4 covered with a first light-absorbing film 23 as an example, the transparent conductor layer 26 may cover the first light-absorbing film 23. Of course, the transparent conductor layer 26 may also be disposed between the metal shielding layer 4 and the light-emitting unit 200. The present disclosure provides a transparent conductor layer 26 on one side of the metal shielding layer 4, which not only reduces the resistance of the metal shielding layer 4 to improve the shielding effect, but also ensures that the transparent conductor layer 26 does not block the light emitted by the light-emitting unit 200. In other embodiments of this disclosure, the shielding structure 300 may also include only the transparent conductor layer 26, and the transparent conductor layer 26 may be disposed on the aforementioned first inorganic encapsulation layer 19. It should be noted that the aforementioned transparent conductor layer 26 may be a full-surface structure.

[0067] like Figure 5 As shown, to avoid damage to the first inorganic encapsulation layer 19 during the formation of the shielding structure 300, the touch panel of this disclosure may further include a buffer layer 14. This buffer layer 14 can be disposed between the first inorganic encapsulation layer 19 and the shielding structure 300, i.e., on the surface of the shielding structure 300 facing the substrate 1. This arrangement can reduce the damage to the first inorganic encapsulation layer 19 during the formation of the shielding structure 300, solving the problem of water and oxygen erosion caused by damage to the first inorganic encapsulation layer 19. Furthermore, to facilitate the formation of the first organic encapsulation layer 20 on the shielding structure 300, the touch panel of this disclosure may further include a planarization layer 18 covering the shielding structure 300. This planarization layer 18 can be disposed on the surface of the shielding structure 300 facing away from the substrate 1, and the first organic encapsulation layer 20 is disposed on the planarization layer 18. Additionally, the aforementioned touch structure can be disposed on the side of the second inorganic encapsulation layer 21 facing away from the substrate 1.

[0068] Furthermore, such as Figure 6 As shown, the touch panel of this disclosure may further include a second organic encapsulation layer 27 and a third inorganic encapsulation layer 28. The third inorganic encapsulation layer 28 may cover the light-emitting unit 200, and the second organic encapsulation layer 27 may be disposed on the side of the third inorganic encapsulation layer 28 facing away from the substrate 1. The aforementioned first inorganic encapsulation layer 19 may be disposed on the side of the second organic encapsulation layer 27 facing away from the substrate 1. The material of the third inorganic encapsulation layer 28 may be the same as the material of the first inorganic encapsulation layer 19. The material of the second organic encapsulation layer 27 may be the same as the material of the first organic encapsulation layer 20.

[0069] like Figure 7 and Figure 8 As shown, the touch panel of this disclosure may further include a first metal layer 31. This first metal layer 31 may be disposed on the same layer as the first electrode 10, and the orthographic projection of the first metal layer 31 onto the substrate 1 may be spaced apart from the orthographic projection of the second electrode 12 onto the substrate 1. The shielding structure 300 may be electrically connected to the first metal layer 31 through a first via 30. This arrangement reduces the resistance of the shielding structure 300, thereby improving the shielding effect. Figure 7 As shown, the orthographic projection of the first via 30 on the substrate 1 can be spaced apart from the first inorganic encapsulation layer 19 described above. Of course, as... Figure 8 As shown, the first via 30 can also penetrate the first inorganic encapsulation layer 19. Furthermore, the first metal layer 31 can also be electrically connected to the aforementioned second source / drain electrode layer 6 and first source / drain electrode layer 5, but this disclosure is not limited thereto. Additionally, the first metal layer 31 can be located in the peripheral area 700, i.e., the touch display area 600 and the first metal layer 31 are spaced apart, but this disclosure does not impose any special limitations on this embodiment.

[0070] like Figure 9As shown, the touch panel of this disclosure may further include a second metal layer 32. The second metal layer 32 may be disposed on the same layer as the bridging metal layer 15, and the orthographic projection of the second metal layer 32 on the substrate 1 and the orthographic projection of the second electrode 12 on the substrate 1 are spaced apart. The shielding structure 300 can be electrically connected to the second metal layer 32 through a second via 33. This arrangement reduces the resistance of the shielding structure 300, thereby improving the shielding effect. Furthermore, the touch panel of this disclosure may also include a third metal layer 34. The third metal layer 34 may be disposed on the same layer as the touch electrode 100. The second metal layer 32 may also be electrically connected to the third metal layer 34. This arrangement further reduces the resistance of the shielding structure 300, thereby improving the shielding effect. In addition, the second metal layer 32 and the third metal layer 34 may be located in the peripheral area 700, that is, the touch display area 600 is spaced apart from the second metal layer 32, and the touch display area 600 is spaced apart from the third metal layer 34, but this disclosure does not impose any special limitations on this.

[0071] like Figure 10 As shown, the touch panel of this disclosure may further include a second light-absorbing film 37. This second light-absorbing film 37 covers the touch electrode 100, meaning the touch electrode 100 is sandwiched between the second light-absorbing film 37 and the touch insulating layer 7. This arrangement allows the second light-absorbing film 37 to absorb light reflected from the shielding structure 300, preventing any impact on the display effect. The orthographic projection of the second light-absorbing film 37 onto the substrate 1 is located within the orthographic projection area of ​​the pixel defining layer 22 onto the substrate 1. The orthographic projection of the second light-absorbing film 37 onto the substrate 1 may overlap with the orthographic projection of the aforementioned metal shielding layer 4 onto the substrate 1.

[0072] This disclosure also provides a display device. The display device may include the touch panel described in any of the above embodiments. The display device may be a mobile phone, or of course, a tablet computer, a television, etc. Since the touch panel in the display device of this disclosure is the same as the touch panel in the above-described embodiments, it has the same beneficial effects, and will not be described again here.

[0073] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure in any way. Although this disclosure has been disclosed above with reference to a preferred embodiment, it is not intended to limit this disclosure. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this disclosure. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this disclosure without departing from the content of the technical solution of this disclosure shall still fall within the scope of the technical solution of this disclosure.

Claims

1. A touch panel, comprising a touch display area and a peripheral area, the peripheral area surrounding the touch display area, characterized in that, The touch panel includes: Substrate; The light-emitting unit is disposed on one side of the substrate and located in the touch display area; A first inorganic encapsulation layer is disposed on the side of the light-emitting unit facing away from the substrate; A shielding structure is disposed on the side of the first inorganic encapsulation layer facing away from the substrate and located in the touch display area; A first organic encapsulation layer is disposed on the side of the shielding structure facing away from the substrate; The second inorganic encapsulation layer is disposed on the side of the first organic encapsulation layer that faces away from the substrate; A touch electrode is disposed on the side of the second inorganic encapsulation layer opposite to the light-emitting unit, and the touch electrode is located in the touch display area; The light-emitting unit includes a first electrode, a light-emitting layer, and a second electrode stacked together, wherein the first electrode is located between the second electrode and the substrate; the touch panel further includes: A first metal layer is disposed in the same layer as the first electrode, and the orthographic projection of the first metal layer on the substrate is spaced apart from the orthographic projection of the second electrode on the substrate; the shielding structure is electrically connected to the first metal layer through a first via.

2. The touch panel according to claim 1, characterized in that, The shielding structure includes a metal shielding layer.

3. The touch panel according to claim 2, characterized in that, The number of light-emitting units is multiple and they are spaced apart. The touch panel also includes a pixel defining layer surrounding the multiple light-emitting units. The orthographic projection of the metal shielding layer on the substrate is located within the orthographic projection area of ​​the pixel defining layer on the substrate.

4. The touch panel according to claim 3, characterized in that, The orthographic projection of the metal shielding layer onto the substrate is a grid structure, and the orthographic projection of the light-emitting unit onto the substrate is located within the mesh of the grid structure.

5. The touch panel according to claim 3, characterized in that, The touch panel also includes: A first light-absorbing film covers the surface of the metal shielding layer, and the orthographic projection of the first light-absorbing film on the substrate is located within the orthographic projection area of ​​the pixel defining layer on the substrate.

6. The touch panel according to claim 3, characterized in that, The touch panel includes a color filter, which includes multiple color resist blocks and a black matrix surrounding the multiple color resist blocks. The multiple color resist blocks correspond one-to-one with the multiple light-emitting units, and the black matrix covers the metal shielding layer.

7. The touch panel according to claim 2, characterized in that, The shielding structure also includes: A transparent conductor layer is disposed on the side of the metal shielding layer facing away from the light-emitting unit or between the metal shielding layer and the light-emitting unit.

8. The touch panel according to claim 1, characterized in that, The shielding structure includes a transparent conductor layer.

9. The touch panel according to claim 1, characterized in that, The touch panel also includes: A third inorganic encapsulation layer covers the light-emitting unit; The second organic encapsulation layer is disposed on the side of the third inorganic encapsulation layer facing away from the substrate; The first inorganic encapsulation layer is disposed on the side of the second organic encapsulation layer that faces away from the substrate.

10. The touch panel according to claim 1, characterized in that, The touch panel also includes: A buffer layer is disposed on the surface of the shielding structure facing the substrate.

11. The touch panel according to claim 1, characterized in that, The touch panel also includes: A planarization layer is disposed on the surface of the shielding structure facing away from the substrate.

12. The touch panel according to claim 1, characterized in that, The orthographic projection of the shielding structure onto the substrate overlaps with the orthographic projection of the touch electrode onto the substrate.

13. The touch panel according to claim 1, characterized in that, The light-emitting unit includes a first electrode, a light-emitting layer, and a second electrode stacked together, with the first electrode located between the second electrode and the substrate; The touch panel further includes a bridging metal layer and a touch insulating layer. The bridging metal layer is disposed on the side of the shielding structure facing away from the substrate, the touch insulating layer is disposed on the side of the bridging metal layer facing away from the substrate, and the touch electrode is disposed on the side of the touch insulating layer facing away from the substrate. The touch panel further includes a second metal layer, which is disposed in the same layer as the bridging metal layer, and the orthographic projection of the second metal layer on the substrate and the orthographic projection of the second electrode on the substrate are spaced apart; the shielding structure is electrically connected to the second metal layer through a second via.

14. The touch panel according to claim 2, characterized in that, The number of light-emitting units is multiple and they are spaced apart. The touch panel also includes a pixel defining layer surrounding the multiple light-emitting units. The metal shielding layer and the orthogonal projection of the touch electrodes on the substrate are located within the orthogonal projection area of ​​the pixel defining layer on the substrate. The touch panel further includes a second light-absorbing film, which covers the touch electrode, and the orthographic projection of the second light-absorbing film on the substrate is located within the orthographic projection area of ​​the pixel defining layer on the substrate.

15. A display device, characterized in that, Includes the touch panel as described in any one of claims 1-14.

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