Electromagnetic touch display panel, manufacturing method, display device and driving method

Abstract

The invention discloses an electromagnetic touch display panel, a manufacturing method, a display device and a driving method. The electromagnetic touch display panel in one embodiment comprises a display area, a non-display area and a binding area bound to the boundary of one side of the non-display area. The electromagnetic touch display panel comprises a substrate, a first electrode and a second electrode, the driving circuit layer is positioned on the substrate; the pixel layer is provided with a plurality of pixel openings; the packaging layer is positioned on one side, far away from the substrate, of the pixel layer; the capacitance touch control layer is positioned on one side, far away from the substrate, of the packaging layer; the electromagnetic touch integrated color film layer is located on the side, away from the substrate, of the capacitive touch layer and comprises a light filtering layer, and the orthographic projection of the light filtering layer on the substrate covers the orthographic projection of the pixel openings on the substrate; the orthographic projection of the electromagnetic touch layer on the substrate falls in the orthographic projection of the non-pixel opening of the pixel layer on the substrate, and the mutually attached surfaces of the electromagnetic touch layer and the capacitive touch layer are insulated.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and more specifically, to an electromagnetic touch display panel, a manufacturing method, a display device and a driving method. Background Art

[0002] Traditional inductive touch screens usually use an external inductive touch panel, which uses a flexible circuit board as a carrier and an electromagnetic induction coil is arranged on the flexible circuit board. The external inductive touch panel is combined with a display panel to form an inductive touch screen, resulting in a relatively large overall thickness of the inductive touch screen.

[0003] The integration of the electromagnetic touch layer and the capacitive touch layer of the electromagnetic touch display panel on the same layer will cause mutual interference between the inductive touch signal and the capacitive touch, affecting the accuracy and precision of signal detection. In addition, the same-layer setting method has a complex process, the production yield is not easy to control, and the production cost is high. Summary of the invention

[0004] An object of the present invention is to provide an electromagnetic touch display panel, a manufacturing method, a display device and a driving method to solve at least one of the problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A first aspect of the present invention provides an electromagnetic touch display panel, the electromagnetic touch display panel comprising a display area, a non-display area surrounding the display area, and a binding area bounded to a side boundary of the non-display area, the electromagnetic touch display panel comprising:

[0007] substrate;

[0008] a driving circuit layer located on the substrate;

[0009] A pixel layer located on a side of the driving circuit layer away from the substrate, the pixel layer having a plurality of pixel openings;

[0010] an encapsulation layer located on a side of the pixel layer away from the substrate;

[0011] A capacitive touch layer located on a side of the packaging layer away from the substrate;

[0012] An electromagnetic touch integrated color film layer located on a side of the capacitive touch layer away from the substrate, the electromagnetic touch integrated color film layer comprising:

[0013] A filter layer, wherein the orthographic projection of the filter layer on the substrate covers the orthographic projection of the pixel opening on the substrate; and

[0014] The electromagnetic touch layer has an orthographic projection on the substrate that falls within the orthographic projection of the non-pixel opening of the pixel layer on the substrate, and the surfaces where the electromagnetic touch layer and the capacitive touch layer adhere to each other are insulated.

[0015] In an optional embodiment, the electromagnetic touch layer includes:

[0016] A first black matrix layer is located on a side of the capacitive touch layer away from the substrate;

[0017] A plurality of first electromagnetic induction coils located on a side of the first black matrix layer away from the substrate, the plurality of first electromagnetic induction coils are arranged in an array in the second direction, and each of the first electromagnetic induction coils extends along the first direction;

[0018] a second black matrix layer covering the first electromagnetic induction coil, wherein the thickness of the second black matrix layer is greater than the thickness of the first electromagnetic induction coil;

[0019] A plurality of second electromagnetic induction coils located on a side of the second black matrix layer away from the substrate, the plurality of first electromagnetic induction coils are arranged in an array in a first direction, and each of the second electromagnetic induction coils extends along a second direction perpendicular to the first direction;

[0020] A third black matrix layer covers the second electromagnetic induction coil, wherein the thickness of the third black matrix layer is greater than the thickness of the second electromagnetic induction coil.

[0021] In an optional embodiment, the orthographic projection of the first black matrix layer on the substrate falls within the orthographic projection of the non-pixel opening of the pixel layer on the substrate.

[0022] The orthographic projection of the first electromagnetic induction coil on the substrate falls within the orthographic projection of the first black matrix layer on the substrate.

[0023] The orthographic projection of the second electromagnetic induction coil on the substrate falls within the orthographic projection of the first black matrix layer on the substrate.

[0024] In an optional embodiment, the non-display area includes a first side portion, a second side portion opposite to the first side portion, a third side portion, and a fourth side portion opposite to the third side portion, and the first side portion corresponds to the side portion where the non-display area is bound to the binding area;

[0025] The orthographic projection of the first electromagnetic induction coil on the substrate is a U-shaped structure with an opening, and the opening of the first electromagnetic induction coil faces one of the third side portion or the fourth side portion;

[0026] The orthographic projection of the second electromagnetic induction coil on the substrate is a U-shaped structure with an opening, and the opening of the second electromagnetic induction coil faces the first edge.

[0027] In an optional embodiment, the capacitive touch layer includes:

[0028] A plurality of first capacitor electrodes are disposed on a side of the packaging layer away from the substrate, the plurality of first capacitor electrodes are arranged along the second direction, and each first capacitor electrode extends along the first direction;

[0029] A plurality of second capacitor electrodes are disposed on a side of the packaging layer away from the substrate, the plurality of second capacitor electrodes are arranged along the second direction, each second capacitor electrode extends along the second direction, and each first capacitor electrode is disconnected at the position of the second capacitor electrode;

[0030] a bridge electrode located at a different layer from the first capacitor electrode and the second capacitor electrode, the bridge electrode being electrically connected to each of the first capacitor electrodes that are disconnected; and

[0031] The capacitor planarization layer is used to planarize the film layer where the first capacitor electrode or the bridge electrode is located.

[0032] In an optional embodiment, the electromagnetic touch layer further includes an electromagnetic shielding layer, and the orthographic projection of the electromagnetic shielding layer on the substrate falls within the orthographic projection of the first black matrix layer on the substrate.

[0033] The electromagnetic shielding layer is located between a surface of the first capacitor electrode away from the substrate and a surface of the first black matrix layer close to the substrate, and is insulated from the first capacitor electrode, the second capacitor electrode and the bridge electrode.

[0034] In an optional embodiment, the bridging electrode is located on a surface of the packaging layer away from the substrate;

[0035] The bridge electrode is covered with a first capacitor insulating layer on a side away from the substrate;

[0036] The first capacitor electrode and the second capacitor electrode are located on a surface of the first capacitor insulating layer away from the substrate;

[0037] The capacitor planarizing layer covers the first capacitor electrode and the second capacitor electrode.

[0038] In an optional embodiment, the electromagnetic shielding layer is located on a surface of the capacitor flat layer away from the substrate, and the orthographic projection of the electromagnetic shielding layer on the substrate covers the orthographic projections of the first capacitor electrode and the second capacitor electrode on the substrate.

[0039] The first black matrix layer is located on a surface of the electromagnetic shielding layer away from the substrate.

[0040] In an optional embodiment, the first capacitor electrode and the second capacitor electrode are located on a surface of the packaging layer away from the substrate;

[0041] The first capacitor electrode and the second capacitor electrode are covered with a second capacitor insulating layer on a side away from the substrate;

[0042] The bridge electrode is located on a surface of the second capacitor insulating layer away from the substrate;

[0043] The capacitor flat layer is located on a surface of the second capacitor insulating layer away from the substrate, and a thickness of the capacitor flat layer is greater than or equal to a thickness of the bridging electrode.

[0044] In an optional embodiment, the electromagnetic shielding layer is located on a surface of the second capacitor insulating layer away from the substrate, and the thickness of the capacitor flat layer is greater than or equal to the thickness of the electromagnetic shielding layer.

[0045] There is a gap between the electromagnetic shielding layer and the bridge electrode,

[0046] The orthographic projection of the electromagnetic shielding layer on the substrate and the orthographic projection of the first capacitor electrode on the substrate have overlapping projections.

[0047] In an optional embodiment, the first black matrix layer, the second black matrix layer and the third black matrix layer are all made of black insulating materials;

[0048] or

[0049] The third black matrix layer is a black light-shielding insulating material, and the second black matrix layer and the first black matrix layer are insulating materials.

[0050] In an optional embodiment, the binding area includes a plurality of first electromagnetic touch pins, a plurality of second electromagnetic touch pins, a plurality of first capacitive touch pins, a plurality of second capacitive touch pins and a plurality of ground pins;

[0051] The non-display area includes:

[0052] A plurality of first electromagnetic touch lines, wherein a first end of each first electromagnetic touch line is connected to a first end of the first electromagnetic induction coil, and a second end of each first electromagnetic touch line is connected to a first electromagnetic touch pin,

[0053] A plurality of second electromagnetic touch lines, wherein a first end of each second electromagnetic touch line is connected to a first end of a second electromagnetic induction coil, and a second end of each second electromagnetic touch line is connected to a second electromagnetic touch pin.

[0054] A plurality of first capacitive touch lines, wherein a first end of each first capacitive touch line is connected to a first end of a first capacitive electrode, and a second end of each first capacitive touch line is connected to a first capacitive touch pin,

[0055] a plurality of second capacitive touch lines, wherein a first end of each second capacitive touch line is connected to a first end of a second capacitive electrode, and a second end of each second capacitive touch line is connected to a second capacitive touch pin,

[0056] The second end of the first electromagnetic induction coil is connected to the ground pin, and the second end of the second electromagnetic induction coil is connected to the ground pin.

[0057] In an optional embodiment, when the electromagnetic touch layer further includes an electromagnetic shielding layer,

[0058] The binding area also includes an electromagnetic shielding pin, and the electromagnetic shielding pin is connected to a ground potential.

[0059] The non-display area further includes an electromagnetic shielding wire, a first end of the electromagnetic shielding wire is connected to the electromagnetic shielding pin, and a second end of the electromagnetic shielding wire is connected to the electromagnetic shielding layer.

[0060] In an optional embodiment, the first capacitive touch line and the second capacitive touch line are located on a surface of the packaging layer away from the substrate;

[0061] The capacitor flat layer is located on the surface of the first capacitor touch line and the second capacitor touch line away from the substrate;

[0062] The electromagnetic shielding wiring is located on the surface of the capacitor flat layer away from the substrate;

[0063] The electromagnetic insulation layer is located on the surface of the electromagnetic shielding line away from the substrate, and the electromagnetic insulation layer is arranged on the same layer as one or more of the first black matrix layer, the second black matrix layer, and the third black matrix layer;

[0064] The first electromagnetic touch line and the second electromagnetic touch line are located on a surface of the electromagnetic insulation layer away from the substrate.

[0065] A second aspect of the present invention provides a method for manufacturing the electromagnetic touch display panel according to the first aspect of the present invention, the method comprising:

[0066] forming a driving circuit layer on the substrate;

[0067] forming a pixel layer on the driving circuit layer, wherein the pixel layer has a plurality of pixel openings;

[0068] forming an encapsulation layer on the pixel layer;

[0069] forming a capacitive touch layer on the packaging layer;

[0070] forming an electromagnetic touch integrated color film layer on the capacitive touch layer;

[0071] Wherein, forming an electromagnetic touch integrated color film layer on the capacitive touch layer further comprises:

[0072] An electromagnetic touch layer insulated from the capacitive touch layer is formed at a position corresponding to the non-pixel opening, wherein the orthographic projection of the electromagnetic touch layer on the substrate falls within the orthographic projection of the non-pixel opening of the pixel layer on the substrate;

[0073] A filter layer is formed at a position corresponding to the pixel opening, and the orthographic projection of the filter layer on the substrate covers the orthographic projection of the pixel opening on the substrate.

[0074] In an optional embodiment, an electromagnetic touch layer insulated from the capacitive touch layer is formed at a position not corresponding to the pixel opening, further comprising:

[0075] forming a first black matrix layer on a side of the capacitive touch layer away from the substrate;

[0076] forming first electromagnetic induction coils on the first black matrix layer, each of the first electromagnetic induction coils extending along a first direction;

[0077] forming a second black matrix layer on the first electromagnetic induction coil, wherein the thickness of the second black matrix layer is greater than the thickness of the first electromagnetic induction coil;

[0078] forming second electromagnetic induction coils on the second black matrix layer, each of the second electromagnetic induction coils extending along a second direction perpendicular to the first direction;

[0079] A third black matrix layer is formed on the second electromagnetic induction coil, wherein the thickness of the third black matrix layer is greater than the thickness of the second electromagnetic induction coil.

[0080] A third aspect of the present invention provides an electromagnetic touch display device, the electromagnetic touch display device comprising:

[0081] The electromagnetic touch display panel according to any one of the first aspects of the present invention,

[0082] Electromagnetic pen and / or capacitive pen.

[0083] A fourth aspect of the present invention provides a method for driving the electromagnetic touch display device according to the first aspect of the present invention, the method comprising:

[0084] In the electromagnetic touch stage, the electromagnetic pen sends an electromagnetic sensing signal at a first preset frequency;

[0085] The electromagnetic touch display panel determines the position of the electromagnetic pen according to the electromagnetic sensing signal;

[0086] and / or

[0087] In the first capacitive touch stage,

[0088] The electromagnetic touch display panel sends a capacitive driving signal at a second preset frequency;

[0089] The electromagnetic touch display panel generates a first capacitance sensing signal in response to a first operation of the capacitive pen on the electromagnetic touch display panel, and determines a position of the capacitive pen according to the first capacitance driving signal and the first capacitance sensing signal;

[0090] and / or

[0091] In the second capacitive touch stage,

[0092] The electromagnetic touch display panel sends a capacitive driving signal at a second preset frequency;

[0093] The electromagnetic touch display panel generates a second capacitance sensing signal in response to a first operation of a user's finger on the electromagnetic touch display panel, and determines a position of the user's finger according to the capacitance driving signal and the second capacitance sensing signal.

[0094] The beneficial effects of the present invention are as follows:

[0095] The embodiment of the present invention designs the electromagnetic touch layer and the capacitive touch layer of the electromagnetic touch display panel in different layers, which can not only reduce signal interference, but also reduce the process difficulty caused by the electromagnetic touch layer and the capacitive touch layer being in the same layer. In addition, the embodiment of the present invention integrates the electromagnetic touch layer in the position of the color film layer corresponding to the non-pixel opening, which can reduce the film thickness of the electromagnetic touch display panel while ensuring the display effect, which is conducive to bending. In addition, the electromagnetic touch display panel of the embodiment of the present invention is closer to the touch surface layer, and can achieve the same intensity of electromagnetic induction at a lower power, thereby saving power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] The specific implementation modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0097] Figure 1 A schematic diagram showing the structure of an electromagnetic touch display panel according to an embodiment of the present invention;

[0098] Figure 2 A schematic diagram showing the structure of a pixel opening of a pixel layer according to an embodiment of the present invention;

[0099] Figure 3 A schematic diagram showing the arrangement of the first capacitor electrode and the second capacitor electrode according to an embodiment of the present invention;

[0100] Figure 4 A schematic diagram showing a top view of the structure of an electromagnetic shielding layer according to an embodiment of the present invention;

[0101] Figure 5 A schematic diagram showing the structure of an electromagnetic touch display panel according to another embodiment of the present invention;

[0102] Figure 6 A schematic diagram showing the structure of an electromagnetic touch display panel according to another embodiment of the present invention;

[0103] Figure 7 A schematic top view of an electromagnetic touch display panel according to an embodiment of the present invention is shown;

[0104] Figure 8 Show Figure 7 The pin distribution diagram of the binding area of ​​the electromagnetic touch display panel shown;

[0105] Fig. 9 A schematic diagram showing the wiring of the first electromagnetic induction coil and the second electromagnetic induction coil according to an embodiment of the present invention;

[0106] Fig.10 A schematic diagram showing the wiring of a first capacitor electrode and a second capacitor electrode according to an embodiment of the present invention is shown;

[0107] Fig.11 A schematic diagram showing the structure of a wiring layer in a non-display area according to an embodiment of the present invention;

[0108] Fig.12 A schematic diagram showing a process of manufacturing an electromagnetic touch display panel according to an embodiment of the present invention;

[0109] Fig.13 A schematic diagram showing the steps of manufacturing the electromagnetic shielding layer according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0110] In order to explain the present invention more clearly, the present invention is further described below in conjunction with embodiments and drawings. Similar components in the drawings are represented by the same reference numerals. It should be understood by those skilled in the art that the content specifically described below is illustrative rather than restrictive, and the protection scope of the present invention should not be limited thereto.

[0111] The integration of the electromagnetic touch layer and the capacitive touch layer of the electromagnetic touch display panel on the same layer will cause mutual interference between the inductive touch signal and the capacitive touch, affecting the accuracy and precision of signal detection. In addition, the same-layer setting method is complex to manufacture, the production yield is not easy to control, and the production cost is high. How to make the electromagnetic touch and capacitive touch signals not interfere with each other without significantly increasing the thickness of the display module with integrated electromagnetic touch is a problem that needs to be solved at present.

[0112] In view of this, the present invention provides an electromagnetic touch display panel, a manufacturing method, a display device and a driving method to solve at least one of the above problems.

[0113] The first embodiment of the present invention provides an electromagnetic touch display panel, such as Figure 1 , Figure 5 and Figure 6 As shown, the electromagnetic touch display panel includes a display area AA, a non-display area NA surrounding the display area AA, and a binding area BD bound to a side boundary of the non-display area NA. The electromagnetic touch display panel includes:

[0114] Substrate 10;

[0115] A driving circuit layer 20 located on the substrate 10;

[0116] A pixel layer 30 located at a side of the driving circuit layer 20 away from the substrate 10 , wherein the pixel layer 30 is provided with a plurality of pixel openings 30A;

[0117] An encapsulation layer 40 located on a side of the pixel layer 30 away from the substrate 10;

[0118] A capacitive touch layer 50 located on a side of the packaging layer 40 away from the substrate 10;

[0119] The electromagnetic touch integrated color film layer 60 is located on the side of the capacitive touch layer 50 away from the substrate 10,

[0120] A flat protection layer 91 is located on a side of the electromagnetic touch integrated color filter layer 60 away from the substrate 10 , and a cover plate 92 is located on a side of the flat protection layer 91 away from the substrate 10 .

[0121] Wherein, the electromagnetic touch integrated color film layer 60 includes:

[0122] A filter layer 61, wherein the orthographic projection of the filter layer 61 on the substrate 10 covers the orthographic projection of the pixel opening 30A on the substrate 10; and

[0123] The electromagnetic touch layer 62 has an orthographic projection on the substrate 10 that falls within the orthographic projection of the non-pixel opening 30A of the pixel layer 30 on the substrate 10 , and the surfaces where the electromagnetic touch layer 62 and the capacitive touch layer 50 adhere to each other are insulated.

[0124] The embodiment of the present invention designs the electromagnetic touch layer 62 and the capacitive touch layer 50 of the electromagnetic touch display panel in different layers, which can not only reduce signal interference, but also reduce the process difficulty caused by the electromagnetic touch layer 62 and the capacitive touch layer 50 being in the same layer. In addition, the embodiment of the present invention integrates the electromagnetic touch layer 62 in the position of the color film layer corresponding to the non-pixel opening, which can reduce the film thickness of the electromagnetic touch display panel while ensuring the display effect, which is conducive to bending. In addition, the electromagnetic touch display panel of the embodiment of the present invention is closer to the touch surface layer, and can achieve the same intensity of electromagnetic induction at a lower power, thereby saving power consumption.

[0125] Now, multiple embodiments of the electromagnetic touch display panel according to the embodiment of the present invention are described.

[0126] like Figure 2 As shown, the pixel layer 30 is provided with a plurality of pixel openings 30A arranged in an array in the first direction and the second direction. The non-pixel opening area is the pixel layer 30. In this embodiment, pixel openings 30A of different sizes are provided. In another embodiment, each pixel opening 30A is also provided with pixel openings 30A of the same size. Each pixel opening 30A is filled with sub-pixels of red, green and blue respectively. A filter layer 61 of the same color is provided above the capacitive touch layer 50 at the corresponding position of each pixel opening 30A, and a black matrix layer is provided above the capacitive touch layer 50 at the corresponding position of the non-pixel opening to avoid light crosstalk.

[0127] It is worth noting that the arrangement of the pixel openings 30A in the embodiment of the present invention is not limited to Figure 2 The structure shown can be designed by those skilled in the art according to practical applications.

[0128] In an optional embodiment, if Figure 1 , Figure 3 and Figure 4 As shown, the capacitive touch layer 50 includes:

[0129] A plurality of first capacitor electrodes 51 are disposed on the side of the packaging layer 40 away from the substrate 10, the plurality of first capacitor electrodes 51 are arranged along the second direction, and each first capacitor electrode 51 extends along the first direction. The array direction of the plurality of first capacitor electrodes 51 in the embodiment of the present invention is the arrangement direction of the present embodiment, for example Figure 3 As shown, a plurality of first capacitor electrodes 51 are arranged in an array in the longitudinal direction. The extending direction of the embodiment of the present invention is the extending direction of one first capacitor electrode 51, for example Figure 3 As shown, a plurality of first capacitor electrodes 51 are extended in the horizontal direction;

[0130] A plurality of second capacitor electrodes 52 are disposed on the side of the encapsulation layer 40 away from the substrate 10, the plurality of second capacitor electrodes 52 are arranged along the second direction, each second capacitor electrode 52 extends along the second direction, and each first capacitor electrode 51 is disconnected at the position of the second capacitor electrode 52;

[0131] A bridge electrode 53 located at a different layer from the first capacitor electrode 51 and the second capacitor electrode 52, wherein the bridge electrode 53 is electrically connected to each of the first capacitor electrodes 51 that are disconnected, and an inorganic material such as silicon nitride or silicon oxide may be used between the bridge electrode 53 and the first capacitor electrode 51 for insulation protection; and

[0132] The capacitor flattening layer 54 is used to flatten the film layer where the first capacitor electrode 51 or the bridge electrode 53 is located, so as to provide good flattening, water and oxygen isolation and buffer protection for the film layer located at the top of the capacitive touch layer 50. Figure 1 and Figure 4 As shown, the first capacitor electrode 51 and the second capacitor electrode 52 are located in the same conductive layer, and the first capacitor electrode 51 is bridged by bridge electrodes 53 of different layers.

[0133] In this embodiment, during the capacitive touch process, the horizontal and vertical coordinates of the finger or capacitive pen can be calculated based on the capacitive sensing signal generated by the first capacitive electrode 51 and the capacitive driving signal generated by the second capacitive electrode 52, thereby obtaining the specific position of the finger or capacitive pen on the touch display panel, thereby realizing capacitive touch.

[0134] Figure 3 A schematic diagram showing the arrangement of the first capacitor electrode 51 and the second capacitor electrode 52 of the capacitive touch layer 50 according to an embodiment is shown. Figure 3 As shown, the orthographic projections of the first capacitor electrode 51 and the second capacitor electrode 52 on the substrate 10 are both arranged at the orthographic projections of the non-pixel opening on the substrate 10, that is, the orthographic projections of the first capacitor electrode 51 and the second capacitor electrode 52 on the substrate 10 do not produce overlapping projections with the pixel opening 30A area, and therefore will not affect the transmittance of the electromagnetic touch display panel.

[0135] like Figure 3As shown, exemplarily, a first capacitor electrode 51 extending laterally is arranged in a non-pixel opening area between two adjacent rows of pixel openings 30A in the second direction, and a second capacitor electrode 52 extending vertically is arranged in a non-pixel opening area between two adjacent rows of pixel openings 30A in the first direction, the first capacitor electrode 51 and the second capacitor electrode 52 have overlapping projections in the positive projection of the substrate 10, the first capacitor electrode 51 is disconnected at the position of the overlapping projection, and a bridging electrode 53 is arranged at the position of the overlapping projection to connect the disconnected first capacitor electrode 51, through this arrangement, it is ensured that the capacitance signals generated by the capacitance changes of the first capacitor electrode 51 and the second capacitor electrode 52 can be independently conducted without crosstalk.

[0136] It is worth noting that the arrangement of the first capacitor electrode 51 and the second capacitor electrode 52 in the embodiment of the present invention is not limited to Figure 3 In the embodiment shown, that is, the arrangement density of the first capacitor electrode 51 and the second capacitor electrode 52 can be designed according to the actual application, with the orthographic projection of the first capacitor electrode 51 and the second capacitor electrode 52 being set in the orthographic projection of the non-pixel opening on the substrate 10 as the design criterion, which will not be repeated here.

[0137] In one embodiment, the first capacitor electrode 51 and the second capacitor can be transparent conductive materials, including but not limited to ITO, AgNW (silver nanowire), graphene, titanium, aluminum, silver or molybdenum and other metal conductive materials. In a specific example, the orthographic projection of the first capacitor electrode 51 and the second capacitor electrode 52 on the substrate 10 can be any shape such as a rhombus, polygon or circle, which is not limited here.

[0138] In an optional embodiment, if Figure 1 , Figure 4 and Figure 5 As shown, the electromagnetic touch layer 62 further includes an electromagnetic shielding layer 63, which is located between the surface of the first capacitor electrode 51 away from the substrate 10 and the surface of the first black matrix layer 621 close to the substrate 10, and is insulated from the first capacitor electrode 51, the second capacitor electrode 52 and the bridge electrode 53. In this embodiment, the electromagnetic shielding layer 63 is electrically connected to the ground potential point, and illustratively, the thickness of the electromagnetic shielding layer 63 is 0.1 μm to 3 μm to achieve a shielding effect.

[0139] The electromagnetic touch display panel of the embodiment of the present invention integrates two touch functions, electromagnetic touch and capacitive touch. Since the capacitive touch function of the touch panel works through capacitive induction in the touch circuit, the capacitive signal in the touch circuit is easily affected by external electromagnetic waves, thereby causing internal signal confusion. Therefore, the embodiment of the present invention sets an electromagnetic shielding layer 63 below the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 and above the capacitive touch layer 50.

[0140] On the one hand, the electromagnetic shielding layer 63 can shield the electromagnetic induction electric field generated by the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 from the stability of the working electric field of the capacitive touch layer 50, the drive circuit and the electromagnetic components of the whole machine. On the other hand, the electromagnetic shielding layer 63 can shield the interference of the capacitive touch layer 50, the drive circuit and the electromagnetic components of the whole machine on the side of the electromagnetic shielding layer 63 away from the electromagnetic touch sensing layer to the electromagnetic touch sensing layer, thereby ensuring that the touch panel has a higher touch sensing accuracy and a higher touch sensing sensitivity.

[0141] In an optional embodiment, the orthographic projection of the electromagnetic shielding layer 63 on the substrate 10 falls within the orthographic projection of the first black matrix layer 621 on the substrate 10, so that the electromagnetic shielding layer 63 does not affect the aperture ratio of the touch display panel.

[0142] In this embodiment, the orthographic projection of the electromagnetic shielding layer 63 on the substrate 10 may be in the shape of strips, grids, or a whole surface, which is also not limited in this embodiment of the present invention.

[0143] like Figure 4 As shown, when the orthographic projection of the electromagnetic shielding layer 63 on the substrate 10 is a conductive layer with a patterned hollow structure, the electromagnetic shielding layer 63 with a grid structure can have good flexibility while ensuring the shielding effect.

[0144] In an optional embodiment, the material of the electromagnetic shielding layer 63 includes one or more of aluminum, copper, silver, nickel, and absorbing materials, and may also be one or more of ferrites, conductive polymers, aerogels, transition metal carbides and nitrides, high entropy ceramics, metamaterials, and the like.

[0145] like Figure 1 , Figure 5 and Figure 6 As shown, the electromagnetic shielding layer 63 and the capacitive touch layer 50 of the embodiment of the present invention have different structures, and the present invention is explained in the following embodiments.

[0146] In an optional embodiment, if Figure 1 As shown, the bridging electrode 53 is located on the surface of the packaging layer 40 away from the substrate 10;

[0147] The side of the bridge electrode 53 away from the substrate 10 is covered with a first capacitor insulating layer 551;

[0148] The first capacitor electrode 51 and the second capacitor electrode 52 are located on the surface of the first capacitor insulating layer 551 away from the substrate 10;

[0149] The capacitor planarization layer 54 covers the first capacitor electrode 51 and the second capacitor electrode 52 .

[0150] In this embodiment, the bridge electrode 53 is located at a relatively lower position in the entire capacitive touch layer 50, the first capacitor electrode 51 and the second capacitor electrode 52 are located at a relatively upper position in the entire capacitive touch layer 50, the bridge electrode 53 and the second capacitor electrode 52 are insulated by the first capacitor insulating layer 551, and the thickness of the capacitor flat layer 54 is greater than that of the first capacitor electrode 51 and the second capacitor electrode 52, that is, Figure 1 In the illustrated embodiment, the surface of the capacitor flat layer 54 away from the substrate 10 is the top surface of the capacitive touch layer 50 farthest from the substrate 10, and the surface of the bridging electrode 53 close to the substrate 10 and the surface of the first capacitor insulating layer 551 close to the substrate 10 are the bottom surface of the capacitive touch layer 50 close to the substrate 10.

[0151] In an optional embodiment, if Figure 1 As shown, the electromagnetic shielding layer 63 is located on the surface of the capacitor flat layer 54 away from the substrate 10. In this embodiment, the first capacitor electrode 51 and the second capacitor electrode 52 are insulated from the electromagnetic shielding layer 63 by the capacitor flat layer 54. The first black matrix layer 621 is located on the surface of the electromagnetic shielding layer 63 away from the substrate 10. The first black matrix layer 621 is used to insulate the first capacitor electrode 51 and the second capacitor electrode 52 from the electromagnetic shielding layer 63.

[0152] In the embodiment of the present invention, the orthographic projection of the electromagnetic shielding layer 63 on the substrate 10 covers the orthographic projection of the first capacitor electrode 51 and the second capacitor electrode 52 on the substrate 10 to form a better shielding effect.

[0153] In another embodiment, Figure 5 As shown, the first capacitor electrode 51 and the second capacitor electrode 52 are located on the surface of the packaging layer 40 away from the substrate 10;

[0154] The first capacitor electrode 51 and the second capacitor electrode 52 are covered with a second capacitor insulating layer 552 on the side away from the substrate 10;

[0155] The bridge electrode 53 is located on the surface of the second capacitor insulating layer 552 away from the substrate 10;

[0156] The capacitor flat layer 54 is located on a surface of the second capacitor insulating layer 552 away from the substrate 10 , and a thickness of the capacitor flat layer 54 is greater than or equal to a thickness of the bridge electrode 53 .

[0157] In this embodiment, the first capacitor electrode 51 and the second capacitor electrode 52 are directly manufactured on the packaging layer 40, and the first capacitor electrode 51 and the second capacitor electrode 52 are located below the entire capacitive touch layer 50. A second capacitor insulating layer 552 and a bridging electrode 53 are formed on the first capacitor electrode 51 and the second capacitor electrode 52, and the bridging electrode 53 is located above the entire capacitive touch layer 50. The second capacitor electrode 52 and the bridging electrode 53 are insulated by the second capacitor insulating layer 552, and the thickness of the capacitor flat layer 54 is greater than or equal to the first capacitor electrode 51 and the second capacitor electrode 52.

[0158] In an alternative embodiment, Figure 5 In the illustrated embodiment, when the thickness of the capacitor flat layer 54 is equal to the thickness of the bridge electrode 53, the surface of the capacitor flat layer 54 away from the substrate 10 is flush with the surface of the bridge electrode 53 away from the substrate 10. That is, the surface of the capacitor flat layer 54 and the bridge electrode 53 away from the substrate 10 is the top surface of the capacitive touch layer 50 farthest from the substrate 10, and the surface of the first capacitor electrode 51 and the second capacitor electrode 52 close to the substrate 10 is the bottom surface of the capacitive touch layer 50 close to the substrate 10.

[0159] In the structure of this embodiment, the top surface of the bridging electrode 53 may not be covered by the capacitor flat layer 54, and the surface of the bridging electrode 53 that is exposed away from the substrate 10 (that is, the surface of the bridging electrode 53 that is not covered by the capacitor flat layer 54) is bonded to the surface of the first black matrix layer 621 that is close to the substrate 10.

[0160] Therefore, in this embodiment, the thickness of the bridging electrode 53 determines the thickness of the capacitor flat layer 54, and the first black matrix layer 621 is used as the insulating layer of the capacitive touch layer 50 and the electromagnetic touch layer 62. Through this setting, on the basis of reducing signal interference, the thickness of the capacitor flat layer 54 can also be reduced, thereby achieving the purpose of reducing the film thickness of the electromagnetic touch panel.

[0161] In an optional embodiment, if Figure 5 As shown, the electromagnetic shielding layer 63 is located on the surface of the second capacitor insulating layer 552 away from the substrate 10, and the thickness of the capacitor flat layer 54 is greater than or equal to the thickness of the electromagnetic shielding layer 63. That is to say, the bridging electrode 53 and the electromagnetic shielding layer 63 of this embodiment are both arranged on the top surface of the second capacitor insulating layer 552, and there is a gap between the electromagnetic shielding layer 63 and the bridging electrode 53 to ensure insulation between the two. By arranging the electromagnetic shielding layer 63 and the bridging electrode 53 on the same horizontal plane, the thickness of one layer of the electromagnetic shielding layer 63 can be reduced, which is more conducive to achieving lightness and thinness.

[0162] In an optional embodiment, when the thickness of the capacitor flat layer 54 is equal to the thickness of the electromagnetic shielding layer 63 and equal to the thickness of the bridging electrode 53 layer, the surfaces of the capacitor flat layer 54, the electromagnetic shielding layer 63 and the bridging electrode 53 layer away from the substrate 10 are flush. Under the structure of this embodiment, the top surfaces of the bridging electrode 53 and the electromagnetic shielding layer 63 may not be covered by the capacitor flat layer 54, and the surfaces of the bridging electrode 53 and the electromagnetic shielding layer 63 that are exposed away from the substrate 10 (that is, the surfaces of the bridging electrode 53 and the electromagnetic shielding layer 63 that are not covered by the capacitor flat layer 54) are bonded to the surface of the first black matrix layer 621 close to the substrate 10.

[0163] In the embodiment of the present invention, the orthographic projection of the electromagnetic shielding layer 63 on the substrate 10 overlaps with the orthographic projection of the first capacitor electrode 51 on the substrate 10 to achieve signal shielding. The maximum thickness of the bridging electrode 53 and the electromagnetic shielding layer 63 determines the thickness of the capacitor flat layer 54, and the first black matrix layer 621 is used as the insulating layer of the bridging electrode 53 and the first electromagnetic induction coil 622. On the basis of reducing signal interference, the thickness of the capacitor flat layer 54 can also be reduced, thereby achieving the purpose of reducing the film thickness of the electromagnetic touch panel.

[0164] Based on the above-mentioned embodiment of the capacitive touch layer 50, a filter layer 61 is provided on the surface of the capacitive touch layer 50 corresponding to the pixel opening 30A region and away from the substrate 10, and the filter layers 61 corresponding to different sub-pixels are isolated by a multi-layer black matrix layer. The color of the filter layer 61 can be the same as the luminous color of the corresponding sub-pixel to achieve the technical effect of filtering light.

[0165] In an optional embodiment, the filter layer 61 is arranged in a one-to-one correspondence with the pixel opening 30A, and the orthographic projection of the filter layer 61 on the substrate 10 at least covers the orthographic projection of its corresponding pixel opening 30A on the substrate 10. Exemplarily, the orthographic projection of the filter layer 61 on the substrate 10 is slightly larger than the orthographic projection of its corresponding pixel opening 30A on the substrate 10.

[0166] In an optional embodiment, if Figure 1 , Figure 5 and Figure 6 As shown, the electromagnetic touch layer 62 includes:

[0167] A first black matrix layer 621 is located on a side of the capacitive touch layer 50 away from the substrate 10;

[0168] A plurality of first electromagnetic induction coils 622 located on a side of the first black matrix layer 621 away from the substrate 10, the plurality of first electromagnetic induction coils 622 are arranged in an array in the second direction, and each of the first electromagnetic induction coils 622 extends along the first direction;

[0169] a second black matrix layer 623 covering the first electromagnetic induction coil 622 , wherein the thickness of the second black matrix layer 623 is greater than the thickness of the first electromagnetic induction coil 622 ;

[0170] A plurality of second electromagnetic induction coils 624 located on a side of the second black matrix layer 623 away from the substrate 10, wherein the plurality of first electromagnetic induction coils 622 are arranged in an array in a first direction, and each of the second electromagnetic induction coils 624 extends along a second direction perpendicular to the first direction;

[0171] The third black matrix layer 625 covers the second electromagnetic induction coil 624 , and the thickness of the third black matrix layer 625 is greater than the thickness of the second electromagnetic induction coil 624 .

[0172] In this embodiment, the first electromagnetic induction coil 622 can calculate the horizontal coordinates of the electromagnetic pen according to the electromagnetic induction signal, and the second electromagnetic induction coil 624 can calculate the vertical coordinates of the electromagnetic pen according to the electromagnetic induction signal, thereby obtaining the specific position of the electromagnetic pen on the touch display panel.

[0173] In an optional embodiment, if Figure 1 , Figure 5 and Figure 6 As shown, the orthographic projection of the first black matrix layer 621 on the substrate 10 falls in the orthographic projection of the non-pixel opening of the pixel layer 30 on the substrate 10, and the orthographic projection of the second black matrix layer 623 on the substrate 10 and the orthographic projection of the third black matrix layer 625 on the substrate 10 both fall in the orthographic projection of the non-pixel opening of the pixel layer 30 on the substrate 10.

[0174] The multiple black matrix layer structures of the "first black matrix layer 621, the second black matrix layer 623 and the third black matrix layer 625" in the embodiment of the present invention can prevent light leakage of the display panel, improve the contrast of the display image, prevent the light from mixing between adjacent sub-pixels and increase the color purity. In an optional embodiment, such as Figure 1 and Figure 5 As shown, the first black matrix layer 621, the second black matrix layer 623 and the third black matrix layer 625 are all made of black light-shielding insulating materials. Since the material of the black matrix is ​​usually a resin material containing black pigment, which is a non-conductive insulating material, when the black matrix is ​​made of a non-conductive material, the first electromagnetic induction coil 622 and the capacitive touch layer 50 are insulated by the first black matrix layer 621, the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 are insulated from each other by the second black matrix layer 623, and the second electromagnetic induction coil 624 is protected by the third black matrix layer 625.

[0175] This arrangement can not only simplify the process steps, but also, by utilizing the performance of the "first black matrix layer 621, the second black matrix layer 623 and the third black matrix layer 625", it can avoid the need for a special insulating layer on the color film substrate of the related technology, which is conducive to making the display panel thin and light.

[0176] In another embodiment, Figure 6 As shown, the third black matrix layer 625 is a black light-shielding insulating material, and the second black matrix layer 623 and the first black matrix layer 621 are insulating materials.

[0177] In the embodiment of the present invention, the first black matrix layer 621 and the second black matrix layer 623 may not use black matrix materials, and other insulating materials may be used to insulate the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 in the stacking direction.

[0178] The third black matrix layer 625 located at the top is a black light-shielding insulating material, which uses the light-shielding and insulating properties of the black light-shielding insulating material to prevent light leakage from the display panel, ensure the contrast of the display image, prevent color mixing of adjacent sub-pixels, and increase color purity.

[0179] In an optional embodiment, the orthographic projection of the first electromagnetic induction coil 622 on the substrate 10 falls within the orthographic projection of the first black matrix layer 621 on the substrate 10 , and the orthographic projection of the second electromagnetic induction coil 624 on the substrate 10 falls within the orthographic projection of the first black matrix layer 621 on the substrate 10 .

[0180] like Figure 1 , Figure 5 and Figure 6 As shown, in the horizontal direction, the first black matrix layer 621 is used to block the filter layers 61 corresponding to different sub-pixels to avoid light crosstalk, and in the stacking direction, the first black matrix layer 621 is used to insulate the electromagnetic touch layer 62 and the capacitive touch layer 50. The outer edges of the orthographic projections of the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 on the substrate 10 do not exceed the outer edges of the orthographic projections of the first black matrix layer 621 on the substrate 10, so that the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 will not affect the aperture ratio of the electromagnetic touch display panel.

[0181] Exemplarily, the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 may be made of aluminum, chromium, molybdenum, copper, titanium or the like.

[0182] In an optional embodiment, if Figure 7As shown, the non-display area NA includes a first side NA01, a second side NA02 opposite to the first side NA01, a third side NA03 and a fourth side NA04 opposite to the third side NA03, and the first side NA01 corresponds to the side where the non-display area NA is bound to the binding area BD.

[0183] In this embodiment, Figure 7 In the embodiment shown, the second direction is the longitudinal direction, i.e., the direction from the display area AA to the non-display area NA to the binding area BD, the first direction is the transverse direction, the first side NA01 and the second side NA02 both extend along the first direction, and the third side NA03 and the fourth side NA04 both extend along the second direction.

[0184] like Figure 8 and Fig. 9 As shown, in the embodiment of the present invention, the orthographic projection of the first electromagnetic induction coil 622 on the substrate 10 is a U-shaped structure with an opening, and the opening of the first electromagnetic induction coil 622 faces one of the third side NA03 or the fourth side NA04, that is, the first electromagnetic induction coil 622 is "С" or Structure to perform touch positioning on the lateral position.

[0185] The orthographic projection of the second electromagnetic induction coil 624 on the substrate 10 is a U-shaped structure with an opening, and the opening of the second electromagnetic induction coil 624 faces the first edge NA01, that is, the second electromagnetic induction coil 624 is "n"-shaped in a top-down view, and the two ends of the second electromagnetic induction coil 624 are close to the binding area BD, so as to form a loop with the touch pins of the binding area BD to perform touch positioning on the longitudinal position.

[0186] In one example, if Figure 7 As shown, a first electromagnetic induction coil 622 extending laterally is arranged in the non-pixel opening area between two adjacent rows of pixel openings 30A in the second direction, and a second electromagnetic induction coil 624 extending vertically is arranged in the non-pixel opening area between two adjacent rows of pixel openings 30A in the first direction, and the first electromagnetic induction coil 622 and the second electromagnetic induction coil 624 have overlapping projections in their positive projections on the substrate 10.

[0187] exist Figure 3On the basis of the first capacitor electrode 51 and the second capacitor electrode 52 shown, in the embodiment of the present invention, the orthographic projection of the first electromagnetic induction coil 622 on the substrate 10 may overlap or not overlap with the orthographic projection of the first capacitor electrode 51 on the substrate 10, and the orthographic projection of the second electromagnetic induction coil 624 on the substrate 10 may overlap or not overlap with the orthographic projection of the second capacitor electrode 52 on the substrate 10. That is, the embodiment of the present invention does not limit the position between the first capacitor electrode 51 and the first electromagnetic induction coil 622 on different layers and between the second capacitor electrode 52 and the second electromagnetic induction coil 624. The design is specifically based on the touch resolution and will not be repeated here.

[0188] In an optional embodiment, if Figure 7 , Figure 8 and Fig. 9 As shown, the binding area BD includes multiple pins bound to the connection terminals of the driving chip, such as multiple first electromagnetic touch pins 71, multiple second electromagnetic touch pins 72, multiple first capacitive touch pins 73, multiple second capacitive touch pins 74 and multiple ground pins 75.

[0189] The non-display area NA includes:

[0190] A plurality of first electromagnetic touch lines 81, a first end of each first electromagnetic touch line 81 is connected to a first end of the first electromagnetic induction coil 622, a second end of each first electromagnetic touch line 81 is connected to a first electromagnetic touch pin 71, and a second end of the first electromagnetic induction coil 622 is connected to the ground pin 75.

[0191] A plurality of second electromagnetic touch wires 82 , each of which has a first end connected to a first end of a second electromagnetic induction coil 624 , a second end connected to a second electromagnetic touch pin 72 , and a second end of the second electromagnetic induction coil 624 connected to the ground pin 75 .

[0192] like Figure 7 , Figure 8 and Fig. 9 As shown, the first electromagnetic touch line 81 is routed through the third side NA03 of the non-display area NA toward which the first electromagnetic induction coil 622 is directed, and the first electromagnetic touch pin 71, the first electromagnetic touch line 81 and the first electromagnetic induction coil 622 form a complete loop to perform electromagnetic touch positioning of the horizontal coordinate. The second electromagnetic touch line 82 is directly extended in the direction of the binding area BD for routing, and the second electromagnetic touch pin 72, the second electromagnetic touch line 82 and the second electromagnetic induction coil 624 form a complete loop to perform electromagnetic touch positioning of the vertical coordinate.

[0193] like Figure 7 , Figure 8 and Fig.10 As shown, the non-display area NA also includes:

[0194] A plurality of first capacitive touch lines 83, wherein a first end of each first capacitive touch line 83 is connected to a first end of the first capacitive electrode 51, and a second end of each first capacitive touch line 83 is connected to a first capacitive touch pin 73,

[0195] A plurality of second capacitive touch lines 84 , each of which has a first end connected to the first end of the second capacitive electrode 52 , and a second end connected to the second capacitive touch pin 74 .

[0196] like Fig.10 As shown, the first capacitive touch line 83 of the non-display area NA is arranged on the third side NA03 or the fourth side NA04, extends to the binding area BD and is electrically connected to the corresponding first capacitive touch pin 73 for signal transmission, and the second capacitive touch line 84 directly extends vertically through the first side NA01 of the non-display area NA to the binding area BD and is electrically connected to the corresponding second capacitive touch pin 74 for signal transmission.

[0197] In another embodiment, the second end of the first capacitor electrode 51 can also be connected to another first capacitor touch line 83, and the second end of the second capacitor electrode 52 can also be connected to another second capacitor touch line 84, so as to realize two-end signal transmission between the first capacitor electrode 51 and the second capacitor electrode 52.

[0198] In an optional embodiment, when the electromagnetic touch layer 62 further includes an electromagnetic shielding layer 63,

[0199] like Figure 8 As shown, the binding area BD also includes an electromagnetic shielding pin 75, and the electromagnetic shielding pin 75 is connected to the ground potential. The non-display area NA also includes an electromagnetic shielding trace 85, and the first end of the electromagnetic shielding trace 85 is connected to the electromagnetic shielding pin 75, and the second end of the electromagnetic shielding trace 85 is connected to the electromagnetic shielding layer 63, so that the current generated by the shielded electromagnetic signal can be extracted.

[0200] In an optional embodiment, if Fig.11 Shows Figure 7 A schematic diagram of the wiring layer structure of the non-display area NA shown at the position of the middle section CC,

[0201] The first capacitive touch line 83 and the second capacitive touch line 84 are located on a surface of the packaging layer 40 away from the substrate 10 ;

[0202] The capacitor flat layer 54 is located on the surface of the first capacitor touch line 83 and the second capacitor touch line 84 away from the substrate 10;

[0203] The electromagnetic shielding line 85 is located on the surface of the capacitor flat layer 54 away from the substrate 10 , and the capacitor flat layer 54 is used to insulate the electromagnetic shielding line 85 from the first capacitor touch line 83 and the second capacitor touch line 84 ;

[0204] The electromagnetic insulating layer 553 is located on the surface of the electromagnetic shielding line 85 away from the substrate 10. The electromagnetic insulating layer 553 is arranged on the same layer as one or more of the first black matrix layer 621, the second black matrix layer 623, the third black matrix layer 625 or the second insulating layer 552, thereby saving the process manufacturing process.

[0205] The first electromagnetic touch line 81 and the second electromagnetic touch line 82 are located on the surface of the electromagnetic insulation layer 553 away from the substrate 10. Based on the above configuration, a stable touch circuit can be formed between each wiring in the non-display area NA and the corresponding functional layer.

[0206] Another embodiment of the present invention provides a method for manufacturing the electromagnetic touch display panel of the above embodiment, such as Fig.12 As shown, the method includes:

[0207] S10, forming a driving circuit layer 20 on the substrate 10;

[0208] S20, forming a pixel layer 30 on the driving circuit layer 20, wherein the pixel layer 30 has a plurality of pixel openings 30A;

[0209] S30, forming an encapsulation layer 40 on the pixel layer 30;

[0210] S40, forming a capacitive touch layer 50 on the packaging layer 40;

[0211] S50, forming an electromagnetic touch integrated color film layer 60 on the capacitive touch layer 50. In an optional embodiment, when the electromagnetic touch display panel further includes an electromagnetic shielding layer 63, before step S50 "forming an electromagnetic touch integrated color film layer 60 on the capacitive touch layer 50", the method further includes:

[0212] An electromagnetic shielding layer 63 insulated from the first capacitor electrode 51 , the second capacitor electrode 52 and the bridge electrode 53 is formed on the side of the first capacitor electrode 51 and the second capacitor electrode 52 of the capacitive touch layer 50 away from the substrate 10 .

[0213] For example, Figure 1 Taking the electromagnetic touch display panel shown in FIG. 1 as an example, a capacitor flat layer 54 is first formed on the side of the first capacitor electrode 51 and the second capacitor electrode 52 of the capacitive touch layer 50 away from the substrate 10, thereby forming Fig.1313a, and then an electromagnetic shielding layer 63 is formed on the capacitor flat layer 54, thereby forming Fig.13 The design of the electromagnetic shielding layer 63 is similar to the above-mentioned embodiment and will not be described in detail here.

[0214] Wherein, step S50 of “forming an electromagnetic touch integrated color film layer 60 on the capacitive touch layer 50” further includes:

[0215] S51 , forming an electromagnetic touch layer 62 insulated from the capacitive touch layer 50 at a position corresponding to the non-pixel opening, wherein the orthographic projection of the electromagnetic touch layer 62 on the substrate 10 falls within the orthographic projection of the non-pixel opening of the pixel layer 30 on the substrate 10 .

[0216] In an optional embodiment, step S51 of “forming an electromagnetic touch layer 62 insulated from the capacitive touch layer 50 at a position not corresponding to the pixel opening” further includes:

[0217] S531, forming a first black matrix layer 621 on a side of the capacitive touch layer 50 away from the substrate 10;

[0218] S533, forming first electromagnetic induction coils 622 on the first black matrix layer 621, each of the first electromagnetic induction coils 622 extending along a first direction;

[0219] S535, forming a second black matrix layer 623 on the first electromagnetic induction coil 622, wherein the thickness of the second black matrix layer 623 is greater than the thickness of the first electromagnetic induction coil 622;

[0220] S537, forming second electromagnetic induction coils 624 on the second black matrix layer 623, each of the second electromagnetic induction coils 624 extending along a second direction perpendicular to the first direction;

[0221] S539, forming a third black matrix layer 625 on the second electromagnetic induction coil 624, wherein the thickness of the third black matrix layer 625 is greater than the thickness of the second electromagnetic induction coil 624. Based on the above process, a Fig.13 The top view of the structure shown in 13c is as follows,

[0222] S53 , forming a filter layer 61 at a position corresponding to the pixel opening 30A, wherein the orthographic projection of the filter layer 61 on the substrate 10 covers the orthographic projection of the pixel opening 30A on the substrate 10 .

[0223] In this step, Figure 1In the illustrated embodiment, the surface distance of the third black matrix away from one side of the substrate 10 and the vertical distance between the electromagnetic shielding layer 63 and the substrate 10, that is, the total thickness of the electromagnetic shielding layer 63, the first black matrix layer 621, the first electromagnetic induction coil 622, the second electromagnetic induction coil 624, the second black matrix layer 623 and the third black matrix layer 625 in the vertical direction, can be greater than, equal to or less than the thickness of the filter layer 61. Those skilled in the art will design it according to actual applications and will not go into details here.

[0224] The electromagnetic touch display panel formed based on the above method can design the electromagnetic touch layer 62 and the capacitive touch layer 50 of the electromagnetic touch display panel in different layers, which can reduce signal interference, provide a larger space for setting the respective conductive traces of the electromagnetic touch layer 62 and the capacitive touch layer 50, and reduce the process difficulty caused by the electromagnetic touch layer 62 and the capacitive touch layer 50 being in the same layer. In addition, the embodiment of the present invention integrates the electromagnetic touch layer 62 in the position of the color film layer corresponding to the non-pixel opening, which can reduce the film thickness of the electromagnetic touch display panel while ensuring the display effect.

[0225] Another embodiment of the present invention provides an electromagnetic touch display device, the electromagnetic touch display device comprising:

[0226] The electromagnetic touch display panel described in the first embodiment of the present invention,

[0227] Electromagnetic pen and / or capacitive pen.

[0228] Therefore, the electromagnetic touch display device of the embodiment of the present invention can be touched by both a capacitive pen and an electromagnetic pen, and integrates capacitive and electromagnetic touch functions, and has wide applicability.

[0229] Another embodiment of the present invention provides a method for driving the electromagnetic touch display device of the embodiment of the present invention, the driving method comprising:

[0230] In the electromagnetic touch stage, the electromagnetic pen sends an electromagnetic sensing signal at a first preset frequency;

[0231] The electromagnetic touch display panel determines the position of the electromagnetic pen according to the electromagnetic sensing signal;

[0232] and / or

[0233] In the first capacitive touch stage,

[0234] The electromagnetic touch display panel sends a capacitive driving signal at a second preset frequency;

[0235] The electromagnetic touch display panel generates a first capacitance sensing signal in response to a first operation of the capacitive pen on the electromagnetic touch display panel, and determines a position of the capacitive pen according to the first capacitance driving signal and the first capacitance sensing signal;

[0236] and / or

[0237] In the second capacitive touch stage,

[0238] The electromagnetic touch display panel sends a capacitive driving signal at a second preset frequency;

[0239] The electromagnetic touch display panel generates a second capacitance sensing signal in response to a first operation of a user's finger on the electromagnetic touch display panel, and determines a position of the user's finger according to the capacitance driving signal and the second capacitance sensing signal.

[0240] In order to avoid signal interference, the electromagnetic touch display panel integrating electromagnetic touch and capacitive touch functions in the related technology often adopts time-sharing drive to reduce interference. Therefore, under the related technology, the driving frequencies of the electromagnetic touch stage and the capacitive touch stage need to be avoided, which will make the reporting rate of the electromagnetic touch display panel lower and the response time of the touch function and the capacitive function longer.

[0241] The electromagnetic touch display panel of the embodiment of the present invention does not need to be driven in time-sharing mode, that is, the electromagnetic touch stage, the first capacitive touch stage and the second capacitive touch stage can be performed simultaneously, that is, the electromagnetic sensing signal and the capacitive driving signal do not need to be avoided. For example, the first preset frequency of the electromagnetic pen can be one or more of 562.5kHz, 531.25kHz, and 593.75kHz, and the second preset frequency can overlap with the first preset frequency. Therefore, the electromagnetic touch display panel of the embodiment of the present invention can adopt a higher driving frequency, increase the reporting rate, and reduce the response time.

[0242] In the description of the present invention, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0243] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the embodiments here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An electromagnetic touch display panel, comprising a display area, a non-display area surrounding the display area, and a binding area bounded to a side boundary of the non-display area, characterized in that: The electromagnetic touch display panel comprises: substrate; a driving circuit layer located on the substrate; A pixel layer located on a side of the driving circuit layer away from the substrate, the pixel layer having a plurality of pixel openings; an encapsulation layer located on a side of the pixel layer away from the substrate; A capacitive touch layer located on a side of the packaging layer away from the substrate; An electromagnetic touch integrated color film layer located on a side of the capacitive touch layer away from the substrate, the electromagnetic touch integrated color film layer comprising: A filter layer, wherein the orthographic projection of the filter layer on the substrate covers the orthographic projection of the pixel opening on the substrate; and The electromagnetic touch layer has an orthographic projection on the substrate that falls within the orthographic projection of the non-pixel opening of the pixel layer on the substrate, and the surfaces where the electromagnetic touch layer and the capacitive touch layer adhere to each other are insulated.

2. The electromagnetic touch display panel according to claim 1, characterized in that: The electromagnetic touch layer comprises: A first black matrix layer, located on a side of the capacitive touch layer away from the substrate; A plurality of first electromagnetic induction coils located on a side of the first black matrix layer away from the substrate, the plurality of first electromagnetic induction coils are arranged in an array in the second direction, and each of the first electromagnetic induction coils extends along the first direction; a second black matrix layer covering the first electromagnetic induction coil, wherein the thickness of the second black matrix layer is greater than the thickness of the first electromagnetic induction coil; A plurality of second electromagnetic induction coils located on a side of the second black matrix layer away from the substrate, the plurality of first electromagnetic induction coils are arranged in an array in a first direction, and each of the second electromagnetic induction coils extends along a second direction perpendicular to the first direction; A third black matrix layer covers the second electromagnetic induction coil, wherein the thickness of the third black matrix layer is greater than the thickness of the second electromagnetic induction coil.

3. The electromagnetic touch display panel according to claim 2, characterized in that: The orthographic projection of the first black matrix layer on the substrate falls within the orthographic projection of the non-pixel opening of the pixel layer on the substrate. The orthographic projection of the first electromagnetic induction coil on the substrate falls within the orthographic projection of the first black matrix layer on the substrate. The orthographic projection of the second electromagnetic induction coil on the substrate falls within the orthographic projection of the first black matrix layer on the substrate.

4. The electromagnetic touch display panel according to claim 2, characterized in that: The non-display area includes a first side portion, a second side portion opposite to the first side portion, a third side portion, and a fourth side portion opposite to the third side portion, wherein the first side portion corresponds to the side portion where the non-display area is bound to the binding area; The orthographic projection of the first electromagnetic induction coil on the substrate is a U-shaped structure with an opening, and the opening of the first electromagnetic induction coil faces one of the third side portion or the fourth side portion; The orthographic projection of the second electromagnetic induction coil on the substrate is a U-shaped structure with an opening, and the opening of the second electromagnetic induction coil faces the first edge.

5. The electromagnetic touch display panel according to claim 2, characterized in that: The capacitive touch layer comprises: A plurality of first capacitor electrodes are disposed on a side of the packaging layer away from the substrate, the plurality of first capacitor electrodes are arranged along the second direction, and each first capacitor electrode extends along the first direction; A plurality of second capacitor electrodes are disposed on a side of the packaging layer away from the substrate, the plurality of second capacitor electrodes are arranged along the second direction, each second capacitor electrode extends along the second direction, and each first capacitor electrode is disconnected at the position of the second capacitor electrode; a bridge electrode located at a different layer from the first capacitor electrode and the second capacitor electrode, the bridge electrode being electrically connected to each of the first capacitor electrodes that are disconnected; and The capacitor planarization layer is used to planarize the film layer where the first capacitor electrode or the bridge electrode is located.

6. The electromagnetic touch display panel according to claim 5, characterized in that: The electromagnetic touch layer further includes an electromagnetic shielding layer, the orthographic projection of the electromagnetic shielding layer on the substrate falls within the orthographic projection of the first black matrix layer on the substrate. The electromagnetic shielding layer is located between a surface of the first capacitor electrode away from the substrate and a surface of the first black matrix layer close to the substrate, and is insulated from the first capacitor electrode, the second capacitor electrode and the bridge electrode.

7. The electromagnetic touch display panel according to claim 6, characterized in that: The bridging electrode is located on a surface of the packaging layer away from the substrate; The bridge electrode is covered with a first capacitor insulating layer on a side away from the substrate; The first capacitor electrode and the second capacitor electrode are located on a surface of the first capacitor insulating layer away from the substrate; The capacitor planarizing layer covers the first capacitor electrode and the second capacitor electrode.

8. The electromagnetic touch display panel according to claim 7, characterized in that: The electromagnetic shielding layer is located on the surface of the capacitor flat layer away from the substrate, and the orthographic projection of the electromagnetic shielding layer on the substrate covers the orthographic projections of the first capacitor electrode and the second capacitor electrode on the substrate. The first black matrix layer is located on a surface of the electromagnetic shielding layer away from the substrate.

9. The electromagnetic touch display panel according to claim 6, characterized in that: The first capacitor electrode and the second capacitor electrode are located on a surface of the packaging layer away from the substrate; The first capacitor electrode and the second capacitor electrode are covered with a second capacitor insulating layer on a side away from the substrate; The bridge electrode is located on a surface of the second capacitor insulating layer away from the substrate; The capacitor flat layer is located on a surface of the second capacitor insulating layer away from the substrate, and a thickness of the capacitor flat layer is greater than or equal to a thickness of the bridging electrode.

10. The electromagnetic touch display panel according to claim 9, characterized in that: The electromagnetic shielding layer is located on the surface of the second capacitor insulating layer away from the substrate, and the thickness of the capacitor flat layer is greater than or equal to the thickness of the electromagnetic shielding layer. There is a gap between the electromagnetic shielding layer and the bridge electrode, The orthographic projection of the electromagnetic shielding layer on the substrate and the orthographic projection of the first capacitor electrode on the substrate have overlapping projections.

11. The electromagnetic touch display panel according to claim 2, characterized in that: The first black matrix layer, the second black matrix layer and the third black matrix layer are all made of black insulating materials; or The third black matrix layer is a black light-shielding insulating material, and the second black matrix layer and the first black matrix layer are insulating materials.

12. The electromagnetic touch display panel according to any one of claims 5 to 11, characterized in that: The binding area includes a plurality of first electromagnetic touch pins, a plurality of second electromagnetic touch pins, a plurality of first capacitive touch pins, a plurality of second capacitive touch pins and a plurality of ground pins; The non-display area includes: A plurality of first electromagnetic touch lines, wherein a first end of each first electromagnetic touch line is connected to a first end of the first electromagnetic induction coil, and a second end of each first electromagnetic touch line is connected to a first electromagnetic touch pin, A plurality of second electromagnetic touch lines, wherein a first end of each second electromagnetic touch line is connected to a first end of a second electromagnetic induction coil, and a second end of each second electromagnetic touch line is connected to a second electromagnetic touch pin. A plurality of first capacitive touch lines, wherein a first end of each first capacitive touch line is connected to a first end of a first capacitive electrode, and a second end of each first capacitive touch line is connected to a first capacitive touch pin, a plurality of second capacitive touch lines, wherein a first end of each second capacitive touch line is connected to a first end of a second capacitive electrode, and a second end of each second capacitive touch line is connected to a second capacitive touch pin, The second end of the first electromagnetic induction coil is connected to the ground pin, and the second end of the second electromagnetic induction coil is connected to the ground pin.

13. The electromagnetic touch display panel according to claim 12, characterized in that: When the electromagnetic touch layer further includes an electromagnetic shielding layer, The binding area also includes an electromagnetic shielding pin, and the electromagnetic shielding pin is connected to a ground potential. The non-display area further includes an electromagnetic shielding wire, a first end of the electromagnetic shielding wire is connected to the electromagnetic shielding pin, and a second end of the electromagnetic shielding wire is connected to the electromagnetic shielding layer.

14. The electromagnetic touch display panel according to claim 13, characterized in that: The first capacitive touch line and the second capacitive touch line are located on a surface of the packaging layer away from the substrate; The capacitor flat layer is located on the surface of the first capacitor touch line and the second capacitor touch line away from the substrate; The electromagnetic shielding wiring is located on the surface of the capacitor flat layer away from the substrate; The electromagnetic insulating layer is located on the surface of the electromagnetic shielding line away from the substrate, and the electromagnetic insulating layer is arranged on the same layer as one or more of the first black matrix layer, the second black matrix layer, and the third black matrix layer; The first electromagnetic touch line and the second electromagnetic touch line are located on a surface of the electromagnetic insulation layer away from the substrate.

15. A method for manufacturing the electromagnetic touch display panel according to any one of claims 1 to 14, characterized in that: The method comprises: forming a driving circuit layer on the substrate; forming a pixel layer on the driving circuit layer, wherein the pixel layer has a plurality of pixel openings; forming an encapsulation layer on the pixel layer; forming a capacitive touch layer on the packaging layer; forming an electromagnetic touch integrated color film layer on the capacitive touch layer; Wherein, forming an electromagnetic touch integrated color film layer on the capacitive touch layer further comprises: An electromagnetic touch layer insulated from the capacitive touch layer is formed at a position corresponding to the non-pixel opening, wherein the orthographic projection of the electromagnetic touch layer on the substrate falls within the orthographic projection of the non-pixel opening of the pixel layer on the substrate; A filter layer is formed at a position corresponding to the pixel opening, and the orthographic projection of the filter layer on the substrate covers the orthographic projection of the pixel opening on the substrate.

16. The method according to claim 15, characterized in that An electromagnetic touch layer insulated from the capacitive touch layer is formed at a position not corresponding to the pixel opening, further comprising: forming a first black matrix layer on a side of the capacitive touch layer away from the substrate; forming first electromagnetic induction coils on the first black matrix layer, each of the first electromagnetic induction coils extending along a first direction; forming a second black matrix layer on the first electromagnetic induction coil, wherein the thickness of the second black matrix layer is greater than the thickness of the first electromagnetic induction coil; forming second electromagnetic induction coils on the second black matrix layer, each of the second electromagnetic induction coils extending along a second direction perpendicular to the first direction; A third black matrix layer is formed on the second electromagnetic induction coil, wherein the thickness of the third black matrix layer is greater than the thickness of the second electromagnetic induction coil.

17. An electromagnetic touch display device, characterized in that: The electromagnetic touch display device comprises: The electromagnetic touch display panel according to any one of claims 1 to 14, Electromagnetic pen and / or capacitive pen.

18. A method for driving the electromagnetic touch display device according to claim 17, characterized in that: The method comprises: In the electromagnetic touch stage, the electromagnetic pen sends an electromagnetic sensing signal at a first preset frequency; The electromagnetic touch display panel determines the position of the electromagnetic pen according to the electromagnetic sensing signal; and / or In the first capacitive touch stage, The electromagnetic touch display panel sends a capacitive driving signal at a second preset frequency; The electromagnetic touch display panel generates a first capacitance sensing signal in response to a first operation of the capacitive pen on the electromagnetic touch display panel, and determines the position of the capacitive pen according to the first capacitance driving signal and the first capacitance sensing signal; and / or In the second capacitive touch stage, The electromagnetic touch display panel sends a capacitive driving signal at a second preset frequency; The electromagnetic touch display panel generates a second capacitance sensing signal in response to a first operation of a user's finger on the electromagnetic touch display panel, and determines a position of the user's finger according to the capacitance driving signal and the second capacitance sensing signal.

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