Touch display panel and touch display equipment

Abstract

The invention discloses a touch control display panel and a touch control display device. The touch control display panel comprises an array substrate; the plurality of LEDs are positioned on one side of the array substrate; a first flat layer covering the plurality of LEDs; the shielding layer is positioned on one side, far away from the array substrate, of the first flat layer; the first insulating layer is positioned on one side, far away from the first flat layer, of the shielding layer; the at least one touch electrode layer is positioned on one side, far away from the shielding layer, of the first insulating layer; and the protective cover plate is positioned on one side, far away from the first flat layer, of the at least one touch electrode layer. The aim of integrating a touch function in the Micro-LED display equipment is fulfilled.

Description

Technical Field

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

[0002] Micro-LED display screens have a simple structure, usually consisting of three major parts: TFT driver, LED chip and packaging structure. Compared with LCD, Micro-LED has advantages such as high brightness, high contrast, wide color gamut and fast response. Compared with OLED, Micro-LED has technical advantages such as better reliability and longer life. Therefore, how to integrate touch function into Micro-LED display devices has become a research hotspot for technicians in this field. Summary of the invention

[0003] In view of the above problems, the present application provides a touch display panel and a touch display device to achieve the purpose of integrating the touch function in the Micro-LED display device. The specific solution is as follows:

[0004] A touch display panel, comprising:

[0005] An array substrate;

[0006] A plurality of LEDs located on one side of the array substrate;

[0007] a first planar layer covering the plurality of LEDs;

[0008] a shielding layer located on a side of the first flat layer away from the array substrate;

[0009] A first insulating layer located at a side of the shielding layer away from the first flat layer;

[0010] At least one touch electrode layer located on a side of the first insulating layer away from the shielding layer;

[0011] A protective cover plate is located on a side of the at least one touch electrode layer away from the first flat layer.

[0012] A touch display device comprises any one of the touch display panels described above.

[0013] The touch display panel provided in the embodiment of the present application not only includes multiple LEDs for realizing display, but also includes at least one touch electrode layer for realizing touch control, so that the touch function is integrated into the LED display panel.

[0014] Moreover, in the touch display panel provided in the embodiment of the present application, the at least one touch electrode layer is located between the protective cover plate and the shielding layer, that is, the at least one touch electrode layer is integrated inside the touch display panel, thereby reducing the thickness of the touch display panel on the basis of integrating the touch function in the LED display panel, which is conducive to the development of lightweight and thin touch display panel.

[0015] In addition, in the touch display panel provided in the embodiment of the present application, a shielding layer is arranged between the at least one touch electrode layer and the multiple LEDs, so that the shielding layer can be used to shield the interference of the LED driving signal on the at least one touch electrode layer, thereby improving the touch detection accuracy of the touch display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0017] Figure 1 A schematic diagram of the structure of a touch display panel provided in one embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of a touch display panel provided in another embodiment of the present application;

[0019] Figure 3 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0020] Figure 4 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0021] Figure 5 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0022] Figure 6 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0023] Figure 7 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0024] Figure 8 A top view of a shielding layer, a first touch electrode layer, and a third touch electrode layer in a display panel provided by an embodiment of the present application;

[0025] Fig. 9A top view of a shielding layer and a first touch electrode layer in a display panel provided by an embodiment of the present application;

[0026] Fig.10 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0027] Fig.11 A top view of a shielding layer and a second touch electrode layer in a display panel provided by an embodiment of the present application;

[0028] Fig.12 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0029] Fig.13 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0030] Fig.14 A top view of the electrical connection position between the ground electrode and the shielding layer in a touch display panel provided by an embodiment of the present application;

[0031] Fig.15 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0032] Fig.16 A top view of the electrical connection position between the ground electrode and the shielding layer in a touch display panel provided by an embodiment of the present application;

[0033] Fig.17 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0034] Fig.18 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0035] Fig.19 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0036] Fig. 20 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0037] Fig.21 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0038] Fig. 22 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0039] Fig.23 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0040] Fig.24 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0041] Fig.25 A top view of a touch display panel provided by an embodiment of the present application;

[0042] Fig.26 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0043] Fig. 27 A top view of a touch display panel provided in yet another embodiment of the present application;

[0044] Fig.28 A top view of a touch display panel provided in yet another embodiment of the present application;

[0045] Fig.29 A flowchart of manufacturing a touch display panel provided in one embodiment of the present application;

[0046] Fig.30 A top view of a touch display panel provided in yet another embodiment of the present application;

[0047] Fig.31 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0048] Fig.32 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0049] Fig.33 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0050] Fig.34 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0051] Fig.35 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0052] Fig.36 A schematic diagram of the structure of a touch display panel provided in yet another embodiment of the present application;

[0053] Fig.37 A schematic diagram of a touch display device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the embodiments in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0055] It is obvious to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover modifications and changes of the present application that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0056] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] As described in the background technology section, how to integrate touch functions into Micro-LED display devices has become a research hotspot for those skilled in the art.

[0058] In view of this, an embodiment of the present application provides a touch display panel, such as Figure 1 As shown, the touch display panel includes:

[0059] An array substrate 10;

[0060] A plurality of LEDs 20 located on one side of the array substrate 10;

[0061] a first planar layer 30 covering the plurality of LEDs 20;

[0062] a shielding layer 40 located on a side of the first planar layer 20 away from the array substrate 10;

[0063] A first insulating layer 50 located at a side of the shielding layer 40 away from the first flat layer 30;

[0064] At least one touch electrode layer 60 located on a side of the first insulating layer 50 away from the shielding layer 40 ;

[0065] A protection cover plate 70 is located on a side of the at least one touch electrode layer 60 away from the first planar layer 30 .

[0066] Optionally, in one embodiment of the present application, the LED may be a Micro-LED or a Mini-LED, and the present application does not limit this, depending on the specific circumstances.

[0067] Specifically, in one embodiment of the present application, the material of the at least one touch electrode layer 60 and the shielding layer 40 is a transparent material such as ITO, so that the at least one touch electrode layer 60 and the shielding layer 40 can transmit the light emitted by the LED 20 to ensure the display of the display screen of the touch display panel.

[0068] The touch display panel provided in the embodiment of the present application not only includes a plurality of LEDs 20 for realizing display, but also includes at least one touch electrode layer 60 for realizing touch control, so that the touch control function is integrated into the LED display panel.

[0069] Moreover, in the touch display panel provided in the embodiment of the present application, the at least one touch electrode layer 60 is located between the protective cover plate 70 and the shielding layer 40, that is, the at least one touch electrode layer 60 is integrated inside the touch display panel, thereby reducing the thickness of the touch display panel on the basis of integrating the touch function into the LED display panel, which is conducive to the development of lightweight and thin touch display panel.

[0070] In addition, in the touch display panel provided in the embodiment of the present application, a shielding layer 40 is arranged between the at least one touch electrode layer 60 and the multiple LEDs 20, so that the shielding layer 40 can be used to shield the interference of the driving signal of the LED 20 on the at least one touch electrode layer 60, thereby improving the touch detection accuracy of the touch display panel.

[0071] Optionally, in one embodiment of the present application, Figure 2 As shown, the shielding layer 40 includes a plurality of first electrodes 41, the at least one touch electrode layer 60 includes a first touch electrode layer 61, the first touch electrode layer 61 includes a plurality of second electrodes 611, the first electrodes 41 are driving electrodes, and the second electrodes 611 are sensing electrodes, so that touch detection is achieved by utilizing the capacitance between the first electrodes 41 and the second electrodes 611.

[0072] It should be noted that, in the present embodiment, the plurality of first electrodes 41 included in the shielding layer 40 are driving electrodes. When the touch display panel realizes touch detection, a driving signal is input into the first electrode 41, and a sensing signal is output from the second electrode 611. Therefore, in the touch detection process, the voltage signal on the first electrode 41 is a constant voltage signal, which is less interfered by the driving signal of the LED 20. As a result, in the touch display panel provided in the embodiment of the present application, the driving electrode can be reused as a shielding layer, thereby reducing the interference of the driving signal of the LED 20 on the touch detection on the basis of integrating the touch function and the display function of the touch display panel, improving the touch detection accuracy, and reducing the thickness of the touch display panel at the same time, which is suitable for the development of thin and light touch display panels.

[0073] It should also be noted that in the touch display panel, in the process of realizing touch detection by utilizing the capacitance change between the driving electrode and the sensing electrode, in order to improve the touch detection accuracy, the driving electrode is arranged at a higher density. Therefore, the driving electrode (i.e., the first electrode 41) is located between the second electrode (i.e., the sensing electrode 611) and the LED 20, and the interference of the driving signal of the LED 20 on the second electrode 611 in the first touch electrode layer 61 can also be reduced.

[0074] On the basis of the above embodiments, in one embodiment of the present application, the first insulating layer 50 is an insulating substrate. Optionally, the insulating substrate 50 may be a touch function film, such as Figure 3 As shown, the shielding layer 40 and the first flat layer 30 are bonded by a first adhesive layer 31. Optionally, the first adhesive layer 31 may be an optically transparent adhesive layer, so that the first adhesive layer 31 will not affect the light emission of the LED when bonding the shielding layer 40 and the first flat layer 30.

[0075] It should be noted that, in the above embodiment, since the first insulating layer 50 is an insulating substrate, the insulating substrate has a certain hardness and can provide sufficient supporting strength for the first electrode 41 and the second electrode 611. Therefore, in this embodiment, when the touch display panel is manufactured, the first electrode 41 and the second electrode 611 can be formed on both sides of the insulating substrate respectively, such as forming the first electrode 41 on the first side surface of the insulating substrate and forming the second electrode 611 on the second side surface of the insulating substrate; and then the side of the insulating substrate where the first electrode 41 is provided is bonded to the first flat layer 30 at least through the first adhesive layer 31.

[0076] It should also be noted that, in the above embodiment, the first electrode 41 and the second electrode 611 are first manufactured on the insulating substrate and then bonded to the first flat layer 30. During the subsequent use of the touch display panel, if there is a problem with the first electrode 41 and / or the second electrode 611, it is only necessary to separate the insulating structure from the first flat layer 30 and replace the insulating substrate and the electrodes on its surface without scrapping the entire touch display panel, thereby reducing the maintenance cost of the touch display panel.

[0077] Optionally, based on the above embodiments, in one embodiment of the present application, the first electrode 41 and the second electrode 611 are metal electrodes, and further, the first electrode 41 and the second electrode 611 are active metal electrodes to reduce the resistance of the first electrode 41 and the second electrode 611 and improve the signal transmission efficiency of the first electrode 41 and the second electrode 611. Specifically, in one embodiment of the present application, the first electrode 41 and the second electrode 611 are copper electrodes.

[0078] It should be noted that metals are easily oxidized in a water-oxygen environment, especially active metals are more easily oxidized in a water-oxygen environment. Therefore, in the above embodiment, after the first electrode 41 and the second electrode 611 are manufactured on the insulating substrate, before being pasted onto the first flat layer 30, the first electrode 41 and the second electrode 611 are easily oxidized, thereby affecting the conductive properties of the first electrode 41 and the second electrode 611, and even affecting the service life of the first electrode 41 and the second electrode 611.

[0079] Therefore, based on the above embodiments, in one embodiment of the present application, the first electrode 41 is covered with a first protective layer on the side away from the first insulating layer 50, and the second electrode 611 is covered with a second protective layer away from the first insulating layer 50, so as to reduce the probability of the first electrode and the second electrode being oxidized by water oxygen in the environment after they are formed. Optionally, the first protective layer and the second protective layer are transparent protective layers, so as not to affect the light emission of the LED 20 on the basis of protecting the first electrode 41 and the second electrode 611. Specifically, the first protective layer and the second protective layer can be an acrylic resin layer or an epoxy resin layer, which is not limited in the present application and depends on the specific situation.

[0080] It should be noted that, in other embodiments of the present application, the first electrode 41 and the second electrode 611 may also be an inactive metal, such as molybdenum or titanium, etc. Since the inactive metal is not easily oxidized, if the first electrode 41 and the second electrode 611 are inactive metals, the first protective layer and the second protective layer may not be formed in the touch display panel.

[0081] In one embodiment of the present application, continue as Figure 3 As shown, the thickness h0 of the first planar layer 30 is greater than the thickness h2 of the first insulating layer 50, so that the first planar layer 30 has a larger thickness to ensure the planarization effect of the first planar layer 30. At the same time, the first insulating layer 50 has a smaller thickness to reduce the overall thickness of the touch display panel, which is suitable for the development of lightweight touch display panels.

[0082] In one embodiment of the present application, continue as Figure 3 The thickness h0 of the first planar layer 30 is greater than the thickness h3 of the first adhesive layer 31, so that the first planar layer 30 has a larger thickness to ensure the planarization effect of the first planar layer 30. At the same time, the first adhesive layer 31 has a smaller thickness to reduce the overall thickness of the touch display panel, which is suitable for the development of lighter and thinner touch display panels.

[0083] In another embodiment of the present application, continue as Figure 3 As shown, the thickness h0 of the first planar layer 30 is greater than the thickness h2 of the first insulating layer 50, and the thickness h0 of the first planar layer 30 is greater than the thickness h3 of the first adhesive layer 31, so that the first planar layer 30 has a larger thickness to ensure the planarization effect of the first planar layer 30, and at the same time, the first insulating layer 50 and the first adhesive layer 31 have a smaller thickness to reduce the overall thickness of the touch display panel, which is suitable for the development of lightweight and thin touch display panels.

[0084] Specifically, in one embodiment of the present application, the thickness of the first flat layer 30 is in the range of 5 μm to 30 μm, the thickness of the first insulating layer 50 is in the range of 0.03 mm to 0.15 mm, and the thickness of the first adhesive layer 31 is in the range of 0.05 mm to 0.15 mm, but the present application does not limit this and it depends on the specific situation.

[0085] Specifically, in one embodiment of the present application, the thickness of the array substrate 10 is 0.5 mm, the thickness of the first flat layer 30 is 0.015 mm, the thickness of the first adhesive layer 31 is 0.1 mm, the thickness of the first insulating layer 50 is 0.06 mm, and the overall thickness from the array substrate to the at least one touch electrode layer 60 in the touch display panel is 0.78 mm, but the present application does not limit this, and it depends on the specific situation. It should be noted that in this embodiment, if Figure 4As shown, the array substrate 10 includes a base substrate 16 and structures such as a pixel circuit 11 located between the base substrate 16 and the LED 20. Since in the array substrate 10, in the direction Z perpendicular to the plane where the touch display panel is located, the thickness of the base substrate 16 is relatively large, and the thickness of the pixel circuit 11 and other structures between the base substrate 16 and the LED 20 is relatively small (only a few microns), therefore, in the embodiment of the present application, the thickness of the array substrate 10 can be the thickness of the base substrate 16, or it can be the overall thickness of the base substrate 16 and the pixel circuit 11 and other structures in the array substrate 10. The present application does not limit this, and it depends on the specific circumstances.

[0086] Based on any of the above embodiments, in one embodiment of the present application, Figure 5 As shown, the touch display panel further includes: a touch circuit 80, the touch circuit 80 including a first touch circuit 81 bound to the first insulating layer 50 on the side facing the first flat layer 30 and a second touch circuit 82 bound to the first insulating layer 50 on the side facing the protective cover 70. Optionally, in this embodiment, when the first insulating layer 50 is an insulating substrate, it is necessary to respectively bind the first touch circuit 81 for providing a driving signal to the driving electrode on the side of the insulating substrate where the shielding layer is made, and bind the second touch circuit 82 for detecting the signal on the sensing electrode on the side of the insulating substrate where the first touch electrode layer 61 is made.

[0087] Optionally, in one embodiment of the present application, the touch display panel includes a flexible circuit board FPC, the flexible circuit board is arranged on one side of the insulating substrate where the first touch electrode layer 61 is made, the second touch circuit 82 is arranged on the flexible circuit board, and the first touch circuit 81 is electrically connected to a signal source of an output drive signal on the flexible circuit board. That is, in this embodiment, the first touch circuit 81 and the second touch circuit 82 are bound to the same circuit board (such as FPC, flexible circuit board) through two bindings.

[0088] In another embodiment of the present application, Figure 6 As shown, the first insulating layer 50 is a flat layer, and a second flat layer 32 is further provided between the shielding layer 40 and the first flat layer 30. In this embodiment, when the touch display panel is manufactured, after the first flat layer 30 is manufactured, the second flat layer 32 is manufactured on the surface of the first flat layer 30; after the second flat layer 32 is manufactured, the shielding layer 40 is manufactured on the surface of the second flat layer 32; after the shielding layer 40 is manufactured, the first insulating layer 50 is manufactured on the surface of the shielding layer 40; after the first insulating layer 50 is manufactured, the first touch electrode layer 61 is manufactured on the surface of the first insulating layer 50.

[0089] It should be noted that, since the adhesive layer has a certain flexibility, if the shielding layer 40 and / or the first touch electrode layer 61 are made on the flexible adhesive layer, collapse may occur. Therefore, in this embodiment, when the shielding layer 40 and the first touch electrode layer 61 are sequentially made on the side of the first flat layer 30 away from the array substrate 10, it is necessary to make a second flat layer 32 on the surface of the first flat layer 30 away from the array substrate 10 to provide a flat surface for the manufacture of the shielding layer 40 and provide a certain support strength for the shielding layer 40, thereby reducing the probability of collapse of the shielding layer 40 after the manufacture is completed. Similarly, the first insulating layer 50 is a flat layer, which can not only provide a flat surface for the manufacture of the first touch electrode layer 61, but also provide a certain support strength for the first touch electrode layer 61, thereby reducing the probability of collapse of the first touch electrode layer 61 after the manufacture is completed.

[0090] Based on the above embodiment, in one embodiment of the present application, continue as follows Figure 6 As shown, the touch display panel further includes: a touch circuit 80, the touch circuit 80 including a first touch circuit 81 bound to the first insulating layer 50 on the side facing the first flat layer 30 and a second touch circuit 82 bound to the first insulating layer 50 on the side facing the protective cover 70. Optionally, in this embodiment, in a plane parallel to the touch display panel, the area of ​​the second flat layer 32 is larger than the area of ​​the shielding layer 40, so as to facilitate binding the first touch circuit 81 between the second flat layer 32 and the shielding layer 40; similarly, in a plane parallel to the touch display panel, the area of ​​the first insulating layer 50 is larger than the area of ​​the first touch electrode layer 61, so as to facilitate binding the second touch circuit 82 between the first insulating layer 50 and the first touch electrode layer 61.

[0091] Since the first insulating layer 50 is a flat layer, the second flat layer 32, the shielding layer 40, the first insulating layer 50, and the first touch electrode layer 61 are sequential processes performed in sequence, and do not involve a transfer and bonding process, and the probability of being oxidized is relatively small. Therefore, based on the above embodiments, in an embodiment of the present application, the first electrode 41 and the second electrode 611 can be an active metal or an inactive metal, and the surfaces of the first electrode 41 and the second electrode 611 can be covered with a protective layer or not, and the present application does not limit this, and it depends on the specific circumstances.

[0092] In other embodiments of the present application, the shielding layer may not be reused as a driving electrode. In this embodiment, Figure 7As shown, the at least one touch electrode layer includes a first touch electrode layer 61 and a third touch electrode layer 62, a second interlayer insulating layer 63 is arranged between the first touch electrode layer and the third touch electrode layer, the first touch electrode layer 61 includes a plurality of second electrodes, the third touch electrode layer 62 includes a plurality of third electrodes, and the capacitance change between the second electrodes and the third electrodes is used to realize touch detection.

[0093] Optionally, in one embodiment of the present application, the second electrode is a driving electrode, and the third electrode is a sensing electrode. In another embodiment of the present application, the second electrode is a sensing electrode, and the third electrode is a driving electrode. The present application does not limit this, and it depends on the specific circumstances.

[0094] It should be noted that when the shielding layer 40 is not reused as a touch electrode, the shielding layer 40 may be a whole layer to improve the shielding performance of the shielding layer for the LED 20 signal. Figure 8 and Fig. 9 As shown, Figure 8 The shielding layer 40 is not reused as a touch electrode, and a top view of the shielding layer 40, the first touch electrode layer 61 and the third touch electrode layer 62 is shown. Fig. 9 FIG. 4 shows a top view of the shielding layer 40 and the first touch electrode layer 61 when the shielding layer 40 is reused as a touch electrode.

[0095] It should also be noted that, in this embodiment, since a shielding layer is provided between the first touch electrode layer 61 and the LED 20 , even if the second electrode in the first touch electrode layer 61 is used as a sensing electrode, it will not be interfered by the LED driving signal.

[0096] Optionally, in a direction Z perpendicular to the plane where the touch display panel is located, the shielding layer 40 at least covers the wiring electrically connected to the plurality of LEDs 20 , but the present application does not limit this and it depends on the specific circumstances.

[0097] It should be noted that the above-mentioned embodiments describe the touch display panel by taking the touch detection principle of mutual capacitance as an example. In other embodiments of the present application, the touch display panel can also implement touch detection based on the touch detection principle of self-capacitance. The structure of the touch display panel when implementing touch detection based on the touch detection principle of self-capacitance is described below.

[0098] like Fig.10 and Fig.11 As shown, Fig.11 for Fig.10A top view of the shielding layer and the second touch electrode layer. In one embodiment of the present application, the at least one touch electrode layer 60 includes a second touch electrode layer, and the second touch electrode layer includes a plurality of block electrodes 64. In a direction Z perpendicular to the plane where the touch display panel is located, the shielding layer 40 and the plurality of block electrodes 64 overlap. Optionally, in a direction Z perpendicular to the plane where the touch display panel is located, the shielding layer 40 covers the plurality of block electrodes 64 to reduce the interference of the drive signal of the LED 20 on the detection signal on the block electrode 64, thereby improving the touch detection accuracy.

[0099] Optionally, in an embodiment of the present application, a third flat layer 33 is further disposed between the at least one touch electrode layer 60 and the protective cover plate 70 to serve as a protective layer for the at least one touch electrode layer 60 .

[0100] Specifically, in an embodiment of the present application, the thickness of the second touch electrode layer is less than 1 μm, and the thickness of the third planar layer 33 ranges from 1 μm to 10 μm, but the present application does not limit this, and it depends on the specific situation.

[0101] Optionally, in a specific embodiment of the present application, the thickness of the array substrate 10 is 0.5 mm, the thickness of the first flat layer 30 is 0.015 mm, the thickness of the first insulating layer 50 is 0.015 mm, the thickness of the second touch electrode layer is less than 1 μm, the thickness of the third flat layer 33 is 0.03 mm, and in the touch display panel, the overall thickness from the array substrate 10 to the at least one touch electrode layer 60 is 0.64 mm, but the present application does not limit this and it depends on the specific circumstances.

[0102] Based on the above embodiments, in one embodiment of the present application, Fig.12 As shown, the touch display panel includes a touch circuit 80 , and the touch circuit 80 is bound to a side of the first insulating layer 50 facing the protective cover 70 .

[0103] Optionally, based on the above embodiment, in one embodiment of the present application, Figure 13-Figure 16 As shown, the first insulating layer 50 includes a through hole 51, and the shielding layer 40 is electrically connected to the ground electrode in the touch control circuit 80 through the through hole 51, so as to provide a fixed zero potential for the shielding layer 40, reduce the probability of voltage fluctuation on the shielding layer 40, and thus improve the shielding function of the shielding layer 40. It should be noted that the touch control circuit 80 also includes a plurality of other signal pins, which are well known to those skilled in the art and will not be described in detail in this application.

[0104] Optionally, in one embodiment of the present application, the through hole 51 is filled with silver glue, that is, the ground electrode in the touch circuit 80 and the shielding layer 40 are electrically connected by applying silver glue in the through hole 51. During the specific production, a through hole 51 is first formed in the first insulating layer 50 to expose the shielding layer 40; then the touch circuit 80 is bound to the first insulating layer 50; then, silver glue is applied in the through hole 51 to electrically connect the ground electrode in the touch circuit 80 and the shielding layer 40; finally, the touch circuit 80 and the silver glue are insulated and sealed together.

[0105] Specifically, in one embodiment of the present application, Fig.13 and Fig.14 As shown, in the direction Z perpendicular to the plane where the touch display panel is located, the ground electrode covers the through hole 51 to improve the electrical contact performance between the ground electrode and the shielding layer 40. However, due to the space requirements of the dispensing process, the situation where the ground electrode covers the through hole 51 is suitable for application scenarios with sufficient frame space to avoid short circuits between the conductor in the through hole and other signal pins near the ground electrode.

[0106] In another embodiment of the present application, Fig.15 and Fig.16 As shown, in the direction Z perpendicular to the plane where the touch display panel is located, the through hole 51 is located on the side of the ground electrode away from the touch electrode of the touch display panel, so that the conductor located in the through hole 51 is far away from other signal pins located on the inner side of the ground electrode, and the requirement for the frame space is lower.

[0107] Based on any of the above embodiments, in one embodiment of the present application, continue as follows Figure 3 As shown, the height of the first flat layer 30 is not lower than the height of the LED 20, that is, the surface of the first flat layer 30 away from the array substrate 10 is not lower than the surface of the LED 20 away from the array substrate 10, thereby providing a flat surface for the production of the shielding layer 40, and facilitating the production of the shielding layer 40. Optionally, in an embodiment of the present application, in the direction Z perpendicular to the plane where the touch display panel is located, the thickness h0 of the first flat layer 30 and the thickness h1 of the LED 20 satisfy the following relationship: h1≤h0≤2*h1, thereby providing a flat surface for the production of the shielding layer 40, facilitating the production of the shielding layer 40, and avoiding the first flat layer 30 being too thick to increase the process difficulty, but the present application does not limit this, and it depends on the specific situation.

[0108] Based on any of the above embodiments, in one embodiment of the present application, the touch display panel also includes: an anti-reflection structure, wherein the anti-reflection structure is located between the array substrate and the protective cover plate to reduce the amount of reflection of ambient light on the display surface of the touch display panel, thereby improving the display quality of the touch display panel.

[0109] Optionally, in one embodiment of the present application, Fig.17 As shown, the anti-reflection structure includes a first anti-reflection structure 91, and the first anti-reflection structure 91 is located between the LED 20 and the protective cover plate 70. Specifically, the first anti-reflection structure 91 includes a plurality of color resist units, and in a direction Z perpendicular to the plane where the array substrate is located, the plurality of color resist units cover the plurality of LEDs 20. The plurality of color resist units are used to reduce the amount of reflection of ambient light irradiated to the display surface of the touch display panel, such as reducing the amount of reflection of ambient light irradiated to the light emitting area of ​​the touch display panel, thereby improving the display quality of the touch display panel without affecting the emission of light from each LED.

[0110] Specifically, in one embodiment of the present application, continue as follows Fig.17 As shown, a second flat layer 32 is disposed between the shielding layer 40 and the first flat layer 30, the plurality of color resist units are disposed on the surface of the first flat layer 30 on a side away from the array substrate 10, the second flat layer 32 covers the plurality of color resist units, and the shielding layer 40 is located on a side of the second flat layer 32 away from the array substrate 10. Optionally, in an embodiment of the present application, the thickness of the second flat layer ranges from 1 μm to 10 μm, but the present application does not limit this, and it depends on the specific situation.

[0111] In another embodiment of the present application, Fig.18 As shown, a third flat layer 33 and a fourth flat layer 44 are arranged between the at least one touch electrode layer 60 and the protective cover plate 70, the third flat layer 33 is located on the surface of the at least one touch electrode layer 60 away from the array substrate 10, the multiple color resistance units are located on the surface of the third flat layer 33 away from the at least one touch electrode layer 30, the fourth flat layer 34 covers the multiple color resistance units, and the protective cover plate 70 is located on the surface of the fourth flat layer 34 away from the array substrate 10.

[0112] It should be noted that, in the above embodiment, the closer the first anti-reflection structure 91 is to the protective cover plate 70, the better the effect of reducing the amount of reflection of ambient light irradiated to the display surface of the touch display panel, and improving the display quality of the touch display panel. At the same time, the larger the area required for each color resistance unit is to ensure that it can cover the light emitted by its corresponding LED 20; the closer the first anti-reflection structure 91 is to the LED 20, the smaller the area required for each color resistance unit is on the basis of ensuring that it can cover the light emitted by its corresponding LED 20. In other embodiments of the present application, the multiple color resistance units can also be located at other positions in the touch display panel, as long as they are located between the LED 20 and the protective cover plate 70, can reduce the amount of reflection of ambient light irradiated to the display surface of the touch display panel, improve the display quality of the touch display panel, and do not affect the emission of light from each LED.

[0113] Based on any of the above embodiments, in one embodiment of the present application, Fig.19 As shown, the anti-reflection structure includes a second anti-reflection structure 92, and the second anti-reflection structure 92 includes a light absorbing layer, and at least part of the light absorbing layer is located in the area between the adjacent LEDs 20 to reduce the amount of reflection of ambient light irradiated to the display surface of the touch display panel, such as reducing the amount of reflection of ambient light irradiated to the non-light emitting area of ​​the touch display panel, thereby improving the display quality of the touch display panel. Optionally, the light absorbing layer can be a black light absorbing layer.

[0114] Optionally, based on the above embodiment, in one embodiment of the present application, Fig.19 As shown, the second anti-reflection structure 92 and the LED 20 are located in the same layer. In this embodiment, the second anti-reflection structure 92 can be located not only in the gap between adjacent LEDs 20, but also in the gap between the LED 20 and the array substrate 10, so as to maximize the area of ​​the second anti-reflection structure 92, improve the effect of utilizing the second anti-reflection structure 92 to reduce the amount of reflection of ambient light irradiated to the display surface of the touch display panel, and reduce the crosstalk between the light of adjacent LEDs.

[0115] In another embodiment of the present application, Fig. 20 As shown, the second anti-reflection structure 92 is located between the first flat layer 30 and the shielding layer 40. In this embodiment, in the direction Z parallel to the plane where the touch display panel is located, the second anti-reflection structure 92 is only located in the gap between adjacent LEDs 20, so as to reduce the reflection amount of ambient light irradiated to the display surface of the touch display panel by utilizing the second anti-reflection structure 92 without affecting the light emission of the LED 20.

[0116] In other embodiments of the present application, the second anti-reflection structure 92 can also be located at other positions between the array substrate 10 and the protective cover plate 70, as long as it can reduce the effect of the reflection of ambient light on the display surface of the touch display panel and does not affect the light emission of the LED.

[0117] It should be noted that if the second anti-reflection structure 92 and the LED 20 are located in the same layer, in the process of manufacturing the touch display panel, if the second anti-reflection structure 92 is manufactured first and then the LED 20 is transferred, in order to facilitate the alignment transfer of the LED 20, the opening in the second anti-reflection structure 92 should be made larger, that is, in the direction Z parallel to the plane where the touch display panel is located, the opening area in the second anti-reflection structure 92 is larger than the area of ​​the LED 20 corresponding to it. At this time, the side boundary of the second anti-reflection structure 92 cannot be aligned with the side boundary of the LED 20. If the second anti-reflection structure 92 is located on the side of the LED 20 away from the array substrate 10, the manufacturing of the second anti-reflection structure 92 is located after the alignment transfer of the LED 20. In this case, when manufacturing the second anti-reflection structure 92, in the direction Z perpendicular to the plane where the touch display panel is located, the side boundary of the second anti-reflection structure 92 can be flush with the side boundary of the LED 20 to maximize the area of ​​the second anti-reflection structure 92.

[0118] Moreover, compared with the surface of the array substrate 10 , the surface of the first planar layer 30 is relatively flat. Therefore, the second anti-reflection structure 92 is located between the first planar layer 30 and the shielding layer 40 , which can also reduce the process difficulty of the second anti-reflection structure 92 .

[0119] It should be noted that, in other embodiments of the present application, the anti-reflection structure may also include at least two layers of second anti-reflection structures 92, so as to further reduce the amount of reflection of ambient light irradiated on the display surface of the touch display panel by setting the second anti-reflection structure 92 at different layers in the touch display panel. It should also be noted that, in the present embodiment, in the direction Z perpendicular to the plane where the touch display panel is located, the second anti-reflection structure 92 located on the side of the LED 20 away from the array substrate 10 does not overlap with the light emitting area of ​​the LED 20, so that the setting of the second anti-reflection structure 92 will not affect the light emission of the LED 20.

[0120] In another embodiment of the present application, Fig.21As shown, the anti-reflection structure includes a first anti-reflection structure 91 and a second anti-reflection structure 92, so as to utilize the first anti-reflection structure 91 and the second anti-reflection structure 92 to simultaneously reduce the amount of reflection of ambient light irradiated to the display surface of the touch display panel, thereby further improving the quality of the display surface of the touch display panel.

[0121] Optionally, in one embodiment of the present application, the first anti-reflection structure 91 and the second anti-reflection structure 92 may be located in different layers. Fig.21 As shown, they can also be located in the same layer, such as Fig. 22 As shown, this application does not limit this and the specific circumstances will depend on the circumstances.

[0122] It should be noted that when the first anti-reflection structure 91 and the second anti-reflection structure 92 are located in the same layer, in the direction Z perpendicular to the plane where the touch display panel is located, the anti-reflection structure formed by the first anti-reflection structure 91 and the second anti-reflection structure 92 can completely cover the display area of ​​the touch display panel, thereby minimizing the amount of reflection of ambient light on the display surface of the touch display panel and improving the quality of the display image of the touch display panel.

[0123] Specifically, in one embodiment of the present application, continue as follows Fig. 22 As shown, when the first anti-reflection structure 91 and the second anti-reflection structure 92 are located in the same layer, the first anti-reflection structure 91 and the second anti-reflection structure 92 are located between the first flat layer 30 and the shielding layer 40, but the present application does not limit this, and it depends on the specific situation. It should be noted that in this embodiment, in the direction Z perpendicular to the plane where the array substrate is located, the color resistance unit covers its corresponding LED 20, so as to reduce the amount of reflection of ambient light irradiated to the display surface of the touch display panel by using the anti-reflection structure formed by the first anti-reflection structure 91 and the second anti-reflection structure 92, and improve the quality of the display screen of the touch display panel without affecting the emission of light from the LED.

[0124] Based on any of the above embodiments, in one embodiment of the present application, Fig.23 As shown, the touch display panel also includes: a polarizer 100, wherein the polarizer 100 is located between the at least one touch electrode layer 60 and the protective cover plate 70, and the polarizer 100 is utilized to reduce the amount of reflection of ambient light irradiated to the display surface of the touch display panel, thereby improving the quality of the display image of the touch display panel.

[0125] It should be noted that, in the present embodiment, if the first insulating layer 50 is an insulating substrate, and the at least one touch electrode layer 60 is first formed on the insulating substrate and then bonded to the array substrate 10, optionally, before the insulating substrate is bonded to the array substrate 10, the polarizer 100 is first formed on a side of the sensing electrode away from the insulating substrate, and then the entirety formed by the polarizer 100 and the insulating substrate is bonded to the array substrate 10.

[0126] Optionally, in one embodiment of the present application, continue as Fig.23 As shown, a third flat layer 33 is further disposed between the protective cover plate 70 and the at least one touch electrode layer 60, the polarizer 100 is located on a surface of the third flat layer 33 away from the array substrate 10, and the protective cover plate 70 is fixed on the polarizer 100 through a second adhesive layer 35. Optionally, the second adhesive layer 35 is an optically transparent adhesive layer, so that the second adhesive layer 35 fixes the polarizer 100 and the protective cover plate 70 without affecting the emission of light from the LED 30.

[0127] It should be noted that, in the above embodiments, the touch display panel may include only one anti-reflection element, namely the polarizer 100, or may include a combination of two anti-reflection elements, namely the polarizer 100 and the first anti-reflection structure 91, or a combination of two anti-reflection elements, namely the polarizer 100 and the second anti-reflection structure 92, or a combination of three anti-reflection elements, namely the polarizer 100, the first anti-reflection structure 91 and the second anti-reflection structure 92. The present application does not limit this, and it depends on the anti-reflection requirements of the touch display panel.

[0128] Based on any of the above embodiments, in one embodiment of the present application, Fig.24 As shown, the touch display panel also includes:

[0129] A touch control circuit 80, configured to implement touch control detection based at least on a signal on the at least one touch control electrode layer 60;

[0130] A display control circuit 110, used to control the working status of the plurality of LEDs 20;

[0131] Optionally, in one embodiment of the present application, Fig.24 and Fig.25 As shown, the touch control circuit 80 and the display control circuit 110 are located on the same side of the display area of ​​the touch display panel; in another embodiment of the present application, as shown in FIG. Figure 26-Figure 28 As shown, the touch control circuit 80 and the display control circuit 110 are located on two opposite sides of the display area of ​​the touch display panel.

[0132] It should be noted that although Fig.25 , Fig. 27 and Fig.28 In the embodiment, the display area of ​​the touch display panel is illustrated by taking a circular display area as an example, but the present application does not limit this. In other embodiments of the present application, the display area of ​​the touch display panel can also be other shapes such as a rectangle, depending on the specific situation.

[0133] It should also be noted that in the above embodiment, the display control circuit 110 and the touch circuit 80 are located on the same side of the display area of ​​the touch display panel, which is more convenient for the layout of the leads of the display control circuit 110 and the touch circuit 80, and the structure is simpler, but the two circuits are stacked in the vertical direction, which will increase the structural strength of the side where the circuit is placed, and the bending radius will become larger, which is not conducive to the realization of a narrow frame. On the contrary, the display control circuit 110 and the touch circuit 80 are located on different sides of the display area of ​​the touch display panel, and the structural strength of one side of the touch display panel is smaller, and the bending radius is smaller, which is conducive to the realization of a narrow frame, but is not conducive to the layout of the wiring of the display control circuit and the touch circuit, and the structure is more complicated.

[0134] It should also be noted that Fig. 27 is a top view of the touch display panel when the ground electrode in the touch circuit 80 covers the through hole in the first insulating layer 50 in a direction Z perpendicular to the plane where the touch display panel is located, Fig.28 It is a top view of the touch display panel when the ground electrode in the touch circuit 80 is away from the side of the touch electrode of the touch display panel.

[0135] Optionally, in one embodiment of the present application, when the touch circuit 80 and the display control circuit 110 are located on the same side of the display area of ​​the touch display panel, the touch circuit 80 and the display control circuit 110 do not overlap in the direction Z perpendicular to the plane where the array substrate is located, so as to avoid damage to the previously bound circuit during the binding process of the later bound circuit.

[0136] like Fig.29As shown, taking the at least one touch electrode layer 60 including a second touch electrode layer as an example, in one embodiment of the present application, the manufacturing process of the touch display panel includes: manufacturing an array substrate structure, the array substrate structure including a plurality of array substrates 10, one array substrate 10 corresponding to one touch display panel; transferring a plurality of LEDs 20 to the array substrate structure by mass transfer, and bonding the plurality of LEDs 20 to the array substrate structure; forming a first flat layer (OC1) 30 covering the plurality of LEDs 20; forming a transparent electrode layer ITO as a shielding layer 40 on a side of the first flat layer 30 away from the array substrate structure; forming a first insulating layer (including OC5 and SiNx) 50 on a side of the shielding layer 40 away from the first flat layer 30; forming a second touch electrode layer (TP5) on a layer of the first insulating layer 50 away from the shielding layer 40 sensor); forming a third flat layer (OC3) 33 covering the second touch electrode layer as a protective layer for the second touch electrode layer to obtain a structure to be divided; using glass cutting (such as G3.5 cutting) and small-grain cutting processes to cut the array substrate structure into a plurality of array substrates 10; attaching a polarizer 100 to a side of the third flat layer 33 away from the array substrate 10; binding a touch circuit 80 and a display control circuit 110 on the array substrate 10; applying silver glue through a glue dispensing process to achieve electrical connection between a ground electrode and a shielding layer in the touch circuit (applying silver glue); attaching a protective cover plate 70; bending a circuit board of the touch circuit 80 and a circuit board of the display control circuit 110 to a side of the array substrate 10 away from the LED, and completing the manufacture of a touch display panel.

[0137] It should be noted that G3.5 cutting refers to the cutting process of the 3.5th generation glass substrate during the display panel manufacturing process. For example, the size of the G3.5 generation glass substrate is approximately 60 cm × 72 cm. G3.5 cutting is to cut the 60 cm × 72 cm whole into 10 cm × 20 cm; small-grain cutting is to cut the 10 cm × 20 cm structure into a touch display panel of the target size.

[0138] It should also be noted that, in the present embodiment, the first insulating layer 50 includes a fifth planar layer (OC5) and a silicon nitride layer (SiNx) for the purpose of utilizing the fifth planar layer to provide a flat surface, and utilizing the silicon nitride layer to achieve a higher water and oxygen isolation effect and a higher electrical insulation effect, so as to reduce the requirements for the water and oxygen isolation and electrical insulation performance of the fifth planar layer, but the present application does not impose any limitation on this, and it depends on the specific circumstances.

[0139] Based on any of the above embodiments, in one embodiment of the present application, Fig.30As shown, the array substrate 10 includes a pixel circuit 11 and a driving circuit 13, wherein the driving circuit 13 is electrically connected to the pixel circuit 11 for transmitting a driving signal to the pixel circuit 11, and the pixel circuit 11 is electrically connected to the LED 20 for driving the LED 20. Optionally, in the present embodiment, in a direction Z perpendicular to the plane where the array substrate is located, the pixel circuit 11 and / or the driving circuit 13 are located in a display area 101 of the touch display panel, that is, in a direction Z perpendicular to the plane where the array substrate is located, at least one of the pixel circuit 11 and the driving circuit 13 is located in the display area 101 of the touch display panel, so as to further reduce the size of the border area of ​​the touch display panel, and even realize a borderless, full-screen design of the display panel, so as to be applied to a spliced ​​display device. Specifically, in one embodiment of the present application, continue as Fig.30 As shown, the plurality of LEDs 20 include a first LED 201, a second LED 202 and a third LED 203, wherein the light emitted by the first LED 201, the second LED 202 and the third LED 203 has different colors, for example, the first LED 201 emits red light, the second LED 202 emits green light, and the third LED 203 emits blue light.

[0140] Optionally, based on the above embodiment, in one embodiment of the present application, Fig.30 and Fig.31 As shown, in the direction Z perpendicular to the plane where the array substrate 10 is located, the pixel circuit 11 and the LED 20 do not overlap, so as to avoid the LED 20 being transferred to the array substrate 10 and damaging the transistors in the pixel circuit 11 during the bonding process with the array substrate 10, thereby ensuring the quality and yield of the display panel. However, the present application does not limit this. In other embodiments of the present application, in the direction Z perpendicular to the plane where the array substrate is located, the pixel circuit 11 and the LED 20 may also overlap, depending on the specific situation.

[0141] Optionally, in an embodiment of the present application, the LED 20 is bonded to the array substrate 10 via a bonding layer 12 .

[0142] Based on any of the above embodiments, in one embodiment of the present application, Fig.30 and Fig.32As shown, in the direction Z perpendicular to the plane where the array substrate is located, the driving circuit 13 and the LED 20 do not overlap, so as to avoid the LED 20 being transferred to the array substrate 10 and damaging the transistors in the driving circuit 13 during the bonding process with the array substrate 10, thereby ensuring the quality and yield of the display panel. However, the present application does not limit this. In other embodiments of the present application, in the direction Z perpendicular to the plane where the array substrate is located, the driving circuit 13 and the LED 20 may also overlap, depending on the specific situation.

[0143] Specifically, in one embodiment of the present application, the driving circuit 13 is a shift register circuit, including a plurality of cascaded shift registers, for providing a scanning signal to the pixel circuit, but the present application does not limit this, and the specific situation depends on the specific situation. Fig.30 As shown, along the first direction X, the driving circuit 13 and the pixel circuit 11 are alternately arranged so that the driving circuit 13 is electrically connected to the corresponding pixel circuit 11, thereby providing a driving signal to the pixel circuit 11, but the present application does not limit this, depending on the specific situation. Wherein, the first direction X is parallel to the plane where the touch display panel is located, and optionally, the first direction X is the column direction of the touch display panel, but the present application does not limit this. In other embodiments of the present application, the first direction X can also be the row direction of the touch display panel, depending on the specific situation.

[0144] Based on any of the above embodiments, in one embodiment of the present application, Fig.33 As shown, the touch display panel includes a first metal layer 14 and a second metal layer 15, the first metal layer 14 includes a first power structure, the second metal layer 15 includes a second power structure, the first power structure is electrically connected to the pixel circuit 11, the pixel circuit 11 is electrically connected to the first electrode 21 of the LED 20, and the second power structure is electrically connected to the second electrode 22 of the LED 20. During specific operation, the first power structure provides a first power signal to the first electrode 21 of the LED 20 through the pixel circuit 11, and the second power structure provides a second power signal to the second electrode 22 of the LED 20. Optionally, the first power signal is a PVDD signal, and the second power signal is a PVEE signal.

[0145] Based on the above embodiments, in one embodiment of the present application, Fig.33As shown, the array substrate 10 includes an active layer (such as the first active layer 111), the first metal layer 14 and the second metal layer 15 are located on the side of the active layer (such as the first active layer 111) facing the LED 20, and in the direction Z perpendicular to the plane where the array substrate 10 is located, the first metal layer 14 and the second metal layer 15 at least cover part of the active layer (such as the first active layer 111) to reduce the damage to the active layer (such as the first active layer 111) during the bonding process of the LED 20. Optionally, in the direction Z perpendicular to the plane where the array substrate 10 is located, the first metal layer 14 and the second metal layer 15 completely cover the active layer to further reduce the damage to the active layer during the bonding process of the LED 20.

[0146] Specifically, in one embodiment of the present application, the active layer includes a first active layer and a second active layer, the first active layer includes the active layer of each transistor in the pixel circuit, and the second active layer includes the active layer of each transistor in the driving circuit.

[0147] It should be noted that if Fig.34 As shown, when the first metal layer 14 and the second metal layer 15 cover at least part of the first active layer 111, the pixel circuit 11 and the LED 20 may also overlap. Optionally, the first active layer 111 of the overlapping part of the pixel circuit 11 and the LED 20 is covered by the first metal layer 14 and / or the second metal layer 15. This reduces the probability of damage to the first active layer 111 of the transistor in the pixel circuit 11 during the bonding process of the LED 20, and by arranging the pixel circuit 11 to overlap with the LED 20, the distance between adjacent LEDs 20 is reduced, which is beneficial to improving the resolution of the touch display panel.

[0148] Similarly, if Fig.35 As shown, when the first metal layer 14 and the second metal layer 15 at least cover a portion of the second active layer 131, the drive circuit 13 and the LED 20 may also overlap. Optionally, the second active layer of the overlapping portion of the drive circuit 13 and the LED 20 is covered by the first metal layer and / or the second metal layer. This reduces the probability of damage to the second active layer of the transistor in the drive circuit during the bonding process of the LED, and by arranging the drive circuit to overlap the LED, the distance between adjacent LEDs is reduced, which is beneficial to improving the resolution of the touch display panel.

[0149] Optionally, in one embodiment of the present application, continue as Fig.33 and Fig.34As shown, in the direction Z perpendicular to the plane where the array substrate 10 is located, the first metal layer 14 and the second metal layer 15 are located between the pixel circuit 11 and the LED 20, and between the driving circuit 13 and the LED 20, so that on the basis of using the first metal layer 1414 and the second metal layer 15 to protect the active layer in the driving circuit 13 and the pixel circuit 11, the first metal layer 14 and the second metal layer 15 are used to shield the signals in the driving circuit 13 and the pixel circuit 11, thereby reducing the interference of the signals in the driving circuit 13 and the pixel circuit 11 on the at least one touch electrode layer 60, thereby improving the touch detection accuracy.

[0150] Optionally, in one embodiment of the present application, in a direction Z perpendicular to the plane of the array substrate, the first metal layer 14 and the second metal layer 15 cover the pixel circuit 11 and the driving circuit 13, so that on the basis of using the first metal layer 14 and the second metal layer 15 to protect the active layer in the driving circuit 13 and the pixel circuit 11, the first metal layer 14 and the second metal layer 15 are further used to shield the signals in the driving circuit 13 and the pixel circuit 11, thereby further reducing the interference of the signals in the driving circuit 13 and the pixel circuit 11 on the at least one touch electrode layer 60, thereby further improving the touch detection accuracy.

[0151] Based on any of the above embodiments, in one embodiment of the present application, Fig.36 As shown, the at least one touch electrode layer 60 includes a plurality of touch electrodes 65. In a direction Z perpendicular to the plane where the array substrate 10 is located, at least part of the touch electrodes 65 do not overlap with the pixel circuit 11, so that by setting at least part of the touch electrodes 65 not overlapping with the pixel circuit 11, the interference of the signal in the pixel circuit 11 on the touch electrodes 65 is reduced, thereby improving the touch detection accuracy of the touch display panel. Optionally, continue as Fig.36 As shown, in the direction Z perpendicular to the plane where the array substrate is located, the multiple touch electrodes 65 and the pixel circuit 11 do not overlap, so as to further reduce the interference of the signal in the pixel circuit 11 on the touch electrode and improve the touch detection accuracy.

[0152] Similarly, continue as Fig.36As shown, in the direction Z perpendicular to the plane where the array substrate is located, at least part of the touch electrodes 65 do not overlap with the drive circuit 13, so that by setting at least part of the touch electrodes 65 not overlapping with the drive circuit 13, the interference of the signal in the drive circuit 13 on the touch electrodes 65 is reduced, and the touch detection accuracy of the touch display panel is improved. Optionally, in the direction Z perpendicular to the plane where the array substrate is located, continue as shown Fig.36 As shown, the plurality of touch electrodes 65 do not overlap with the driving circuit 13 , so as to further reduce the interference of the signal in the driving circuit 13 on the touch electrodes and improve the touch detection accuracy.

[0153] Optionally, in one embodiment of the present application, in a direction Z perpendicular to the plane of the array substrate, at least part of the touch electrode 65 does not overlap with the pixel circuit 11 and does not overlap with the drive circuit 13, so as to reduce the interference of the signal in the pixel circuit 11 on the touch electrode 65, and reduce the interference of the signal in the drive circuit 13 on the touch electrode 65, thereby improving the touch detection accuracy.

[0154] In addition, if Fig.37 As shown, the embodiment of the present application further provides a touch display device, which includes the touch display panel provided by any of the above embodiments. Optionally, the touch display device can be a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (AR) / virtual reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc., and the embodiment of the present application does not impose any restrictions on this.

[0155] In this specification, each embodiment is described in a progressive, parallel, or progressive and parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0156] It should be noted that in the description of the present application, it should be understood that the description of the drawings and embodiments is illustrative rather than restrictive. The same figure marks throughout the embodiments of the specification identify the same structure. It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the article or equipment including a series of elements includes not only those elements, but also includes other elements that are not clearly listed, or also includes elements inherent to such articles or equipment. In the absence of more restrictions, the elements limited by the sentence "including one..." do not exclude the existence of other identical elements in the article or equipment including the above elements.

[0157] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A touch display panel, characterized in that: include: An array substrate; A plurality of LEDs located on one side of the array substrate; a first planar layer covering the plurality of LEDs; a shielding layer located on a side of the first flat layer away from the array substrate; A first insulating layer located at a side of the shielding layer away from the first flat layer; At least one touch electrode layer located on a side of the first insulating layer away from the shielding layer; A protective cover plate is located on a side of the at least one touch electrode layer away from the first flat layer.

2. The touch display panel according to claim 1, characterized in that: The shielding layer includes a plurality of first electrodes, the at least one touch electrode layer includes a first touch electrode layer, the first touch electrode layer includes a plurality of second electrodes, the first electrodes are driving electrodes, and the second electrodes are sensing electrodes.

3. The touch display panel according to claim 2, characterized in that: The first insulating layer is an insulating substrate, and the shielding layer and the first flat layer are bonded together by a first bonding layer.

4. The touch display panel according to claim 3, characterized in that: The thickness of the first planar layer is greater than the thickness of the first insulating layer, and / or the thickness of the first planar layer is greater than the thickness of the first adhesive layer.

5. The touch display panel according to claim 2, characterized in that: The first insulating layer is a flat layer, and a second flat layer is disposed between the shielding layer and the first flat layer.

6. The touch display panel according to claim 3 or 5, characterized in that: The first electrode and the second electrode are metals. The first electrode is covered with a first protective layer on a side away from the first insulating layer, and the second electrode is covered with a second protective layer on a side away from the first insulating layer.

7. The touch display panel according to claim 2, characterized in that: Also includes: The touch control circuit includes: a first touch control circuit bound to a side of the first insulating layer facing the first flat layer and a second touch control circuit bound to a side of the first insulating layer facing the protective cover.

8. The touch display panel according to claim 1, characterized in that: The at least one touch electrode layer includes a second touch electrode layer, and the second touch electrode layer includes a plurality of block electrodes; in a direction perpendicular to a plane where the touch display panel is located, the shielding layer overlaps with the plurality of block electrodes.

9. The touch display panel according to claim 8, characterized in that: It also includes a touch circuit, which is bound to a side of the first insulating layer facing the protective cover.

10. The touch display panel according to claim 9, characterized in that: The first insulating layer includes a through hole, and the shielding layer is electrically connected to the ground electrode in the touch control circuit through the through hole.

11. The touch display panel according to claim 10, characterized in that: In a direction perpendicular to the plane where the touch display panel is located, the ground electrode covers the through hole.

12. The touch display panel according to claim 10, characterized in that: In a direction perpendicular to the plane where the touch display panel is located, the through hole is located on a side of the ground electrode away from the touch electrode of the touch display panel.

13. The touch display panel according to claim 1, characterized in that: In a direction perpendicular to the plane where the touch display panel is located, the thickness h0 of the first planar layer and the thickness h1 of the LED satisfy the following relationship: h1≤h0≤2*h1.

14. The touch display panel according to claim 1, characterized in that: Also includes: An anti-reflection structure, located between the array substrate and the protective cover plate; The anti-reflection structure includes at least one of a first anti-reflection structure and a second anti-reflection structure, the first anti-reflection structure includes a plurality of color resistance units, and in a direction perpendicular to the plane where the array substrate is located, the plurality of color resistance units cover the plurality of LEDs; The second anti-reflection structure includes a light absorbing layer, at least a portion of which is located in a region between adjacent LEDs.

15. The touch display panel according to claim 14, characterized in that: The first anti-reflection structure is located between the at least one touch electrode layer and the protective cover plate; Alternatively, the first anti-reflection structure is located between the first planar layer and the shielding layer.

16. The touch display panel according to claim 14, characterized in that: The second anti-reflection structure and the plurality of LEDs are located in the same layer; Alternatively, the second anti-reflection structure is located between the first planar layer and the shielding layer.

17. The touch display panel according to claim 14, characterized in that: The anti-reflection structure includes a first anti-reflection structure and a second anti-reflection structure, and the first anti-reflection structure and the second anti-reflection structure are located in the same layer.

18. The touch display panel according to claim 17, characterized in that: The first anti-reflection structure and the second anti-reflection structure are located between the first planar layer and the shielding layer.

19. The touch display panel according to claim 18, characterized in that: In a direction perpendicular to the plane where the array substrate is located, the color resistance unit covers the corresponding LED; In a direction perpendicular to the plane where the array substrate is located, the first anti-reflection structure and the second anti-reflection structure cover a display area of ​​the touch display panel.

20. The touch display panel according to claim 1 or 14, characterized in that: The touch display panel includes a polarizer, and the polarizer is located between the at least one touch electrode layer and the protection cover plate.

21. The touch display panel according to claim 1, characterized in that: Also includes: A touch control circuit, configured to implement touch control detection based at least on a signal on the at least one touch control electrode layer; A display control circuit, used for controlling the working states of the plurality of LEDs; Wherein, the touch control circuit and the display control circuit are located on the same side of the display area of ​​the touch display panel; Alternatively, the touch control circuit and the display control circuit are located on two opposite sides of a display area of ​​the touch display panel.

22. The touch display panel according to claim 1, characterized in that: The array substrate includes a pixel circuit and a driving circuit, wherein the driving circuit is used to transmit a driving signal to the pixel circuit, and the pixel circuit is used to drive the LED. In a direction perpendicular to the plane where the array substrate is located, the pixel circuit and / or the driving circuit are located in the display area of ​​the touch display panel.

23. The touch display panel according to claim 22, characterized in that: In a direction perpendicular to the plane where the array substrate is located, the pixel circuit and / or the driving circuit do not overlap with the LED; Alternatively, in a direction perpendicular to the plane where the array substrate is located, the driving circuit and / or the pixel circuit overlaps with the LED.

24. The touch display panel according to claim 23, characterized in that: The touch display panel includes a first metal layer and a second metal layer, the first metal layer includes a first power structure, the second metal layer includes a second power structure, the first power structure is electrically connected to the pixel circuit, the pixel circuit is electrically connected to the first electrode of the LED, and the second power structure is electrically connected to the second electrode of the LED; The array substrate comprises an active layer, the first metal layer and the second metal layer are located on a side of the active layer facing the LED, and in a direction perpendicular to a plane where the array substrate is located, the first metal layer and the second metal layer at least cover a portion of the active layer.

25. The touch display panel according to claim 24, characterized in that: In a direction perpendicular to the plane where the array substrate is located, the first metal layer and the second metal layer are located between the pixel circuit and the LED, and between the driving circuit and the LED; In a direction perpendicular to the plane where the array substrate is located, the first metal layer and the second metal layer cover the pixel circuit and the driving circuit.

26. The touch display panel according to claim 22, characterized in that: The at least one touch electrode layer includes a plurality of touch electrodes. In a direction perpendicular to the plane where the array substrate is located, at least part of the touch electrodes do not overlap with the pixel circuit and do not overlap with the drive circuit.

27. A touch display device, characterized in that: A touch display panel comprising any one of claims 1-26.

Images