Touch layer, touch display device and preparation method of touch layer

Abstract

Embodiments of the present disclosure provide a touch layer, a touch display device and a preparation method of the touch layer, and relate to the technical field of display, and are used to solve the problem that signal changes before and after touch cannot be accurately recognized. The touch layer comprises a first sensing electrode, a second sensing electrode and a conductive pattern group. The first sensing electrode comprises a plurality of first electrode blocks which are electrically connected to each other. The second sensing electrode comprises a plurality of second electrode blocks which are electrically connected to each other. The first electrode block comprises a first body and a plurality of first finger portions protruding from the first body, and the second electrode block has a plurality of grooves at the edge, and the first finger portion extends into the groove. The conductive pattern group comprises a plurality of conductive patterns which are spaced apart along a boundary section. The boundary section is a part between the same side root points of two adjacent first finger portions in the boundary line of the first electrode block and the second electrode block. The conductive pattern is surrounded by the first electrode block and the second electrode block, and is insulated from the first electrode block and the second electrode block.

Description

TECHNICAL FIELD

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

[0002] Touch structures have types of capacitive, resistive, infrared or surface acoustic wave. Among them, the capacitive touch structure works by using the current induction phenomenon of the human body, supports multi-point touch, and has advantages of wear resistance, long service life, low power consumption, etc., so it has developed rapidly.

[0003] The capacitive touch structure is divided into mutual capacitance touch structure and self-capacitance touch structure. The mutual capacitance touch structure can include two groups of electrode strips (for example, including a group of touch scanning electrode strips and a group of touch sensing electrode strips) arranged in a cross manner, and a plurality of capacitors are formed near the positions where the two groups of electrode strips cross each other. When a finger touches the screen, the capacitance of some capacitors near the touch point is affected; based on the change of these capacitors, the touch position can be determined. SUMMARY

[0004] Embodiments of the present disclosure aim to provide a touch layer, a touch display device and a preparation method of the touch layer, to solve the problem that the signal change before and after touch cannot be accurately identified in the conventional solution.

[0005] To achieve the above-mentioned purpose, embodiments of the present disclosure provide the following technical solutions: on the one hand, a touch layer is provided. The touch layer includes a first sensing electrode, a second sensing electrode and a conductive pattern group. The first sensing electrode includes a plurality of first electrode blocks electrically connected to each other. The second sensing electrode is arranged in a cross manner with the first sensing electrode and is insulated from each other, and includes a plurality of second electrode blocks electrically connected to each other. Among them, the first electrode block includes a first body and a plurality of first finger parts protruding from the first body, and the second electrode block has a plurality of grooves at the edge, and the first finger part extends into the groove. The conductive pattern group includes a plurality of conductive patterns distributed along the boundary section, the boundary section being a part between the same side root points of two adjacent first finger parts in the boundary line of the first electrode block and the second electrode block; the conductive pattern is surrounded by the first electrode block and the second electrode block, and is insulated from the first electrode block and the second electrode block.

[0006] In some embodiments, the conductive pattern is formed by a plurality of conductive lines crossing each other; the conductive pattern has one cross node.

[0007] Exemplarily, the conductive pattern has at least two cross nodes distributed along the boundary section.

[0008] In some embodiments, the total length of the conductive patterns in the conductive pattern group is less than or equal to half of the length of the boundary section.

[0009] In some embodiments, the set of conductive patterns includes at least one first conductive pattern, the first conductive pattern being a conductive pattern. The first electrode block has a grid structure, and is provided with at least one first grid point vacancy along the boundary section; wherein the first conductive pattern is arranged at the first grid point vacancy.

[0010] In some embodiments, the set of conductive patterns includes at least one second conductive pattern, the second conductive pattern being a conductive pattern. The second electrode block has a grid structure, and is provided with at least one second grid point vacancy along the boundary section; wherein the second conductive pattern is arranged at the second grid point vacancy.

[0011] In some embodiments, the set of conductive patterns includes at least one first conductive pattern, the first conductive pattern being a conductive pattern. The first electrode block has a grid structure, and is provided with at least one first grid point vacancy along the boundary section; wherein the first conductive pattern is arranged at the first grid point vacancy.

[0012] In some embodiments, the boundary section includes a first segment and a second segment opposite to the first segment and surrounding the first finger portion and extending along a width direction of the first finger portion. The set of conductive patterns includes M1 first conductive patterns distributed along the first segment and M2 second conductive patterns distributed along the second segment, M1 and M2 are both greater than or equal to 1.

[0013] In some embodiments, M1 and M2 are equal.

[0014] In some embodiments, at least one of the M1 first conductive patterns and at least one of the M2 second conductive patterns are opposite to each other along the width direction of the first finger portion.

[0015] In some embodiments, the set of conductive patterns further includes M3 second conductive patterns distributed along the first segment and M4 first conductive patterns distributed along the second segment, M3 and M4 are both greater than or equal to 1.

[0016] In some embodiments, M3 and M4 are equal.

[0017] In some embodiments, at least one of the M3 second conductive patterns and at least one of the M4 first conductive patterns are opposite to each other along the width direction of the first finger portion.

[0018] In some embodiments, the boundary section includes a third segment surrounding the first finger portion and extending along a width direction of the first finger portion, and a fourth segment between two adjacent first finger portions. The set of conductive patterns further includes N1 first conductive patterns distributed along the third segment and N2 second conductive patterns distributed along the fourth segment, N1 and N2 are both greater than or equal to 1.

[0019] In some embodiments, the boundary section includes a third segment surrounding the first finger portion and extending along a width direction of the first finger portion, and a fourth segment between two adjacent first finger portions. The set of conductive patterns further includes Q1 second conductive patterns distributed along the third segment and Q2 first conductive patterns distributed along the fourth segment, Q1 and Q2 are both greater than or equal to 1.

[0020] Exemplarily, the boundary section includes a third segment surrounding the first finger portion and extending substantially along a width direction of the first finger portion, and a fourth segment between two adjacent first finger portions. The set of conductive patterns further includes N1 first conductive patterns distributed along the third segment and N2 second conductive patterns distributed along the fourth segment, N1 and N2 are both greater than or equal to 1. The set of conductive patterns further includes Q1 second conductive patterns distributed along the third segment and Q2 first conductive patterns distributed along the fourth segment, Q1 and Q2 are both greater than or equal to 1.

[0021] In some embodiments, N1 and N2 are equal. Q1 and Q2 are equal.

[0022] In some embodiments, in the case that the set of conductive patterns includes N1 first conductive patterns and N2 second conductive patterns: at least one of the N1 first conductive patterns is distributed at an end of the third segment; at least one of the N2 second conductive patterns is distributed at an end of the fourth segment.

[0023] In some embodiments, in the case that the set of conductive patterns includes Q1 second conductive patterns and Q2 first conductive patterns: at least one of the Q1 second conductive patterns is distributed at an end of the third segment; at least one of the Q2 first conductive patterns is distributed at an end of the fourth segment.

[0024] In some embodiments, the first finger portion includes a first knuckle and a second knuckle, and the first knuckle is farther away from the first body than the second knuckle. The width of the first knuckle is smaller than the width of the second knuckle.

[0025] In some embodiments, a portion of the boundary section surrounding the first knuckle is provided with at least one conductive pattern.

[0026] In some embodiments, a portion of the boundary section surrounding the second knuckle is provided with at least one conductive pattern.

[0027] In some embodiments, a portion of the boundary section surrounding the first knuckle is provided with at least one conductive pattern; a portion of the boundary section surrounding the second knuckle is provided with at least one conductive pattern.

[0028] In some embodiments, the first finger portion has a grid structure. The areas of two adjacent grids along the width direction of the first finger portion are not equal.

[0029] Exemplarily, the first finger portion has a grid structure. The areas of two adjacent grids along the extension direction of the first finger portion are not equal.

[0030] Exemplarily, the first finger portion has a grid structure. The areas of two adjacent grids along the width direction of the first finger portion are not equal. And, the areas of two adjacent grids along the extension direction of the first finger portion are not equal.

[0031] In some embodiments, the first finger has a mesh structure. The first finger has a first break, which connects two adjacent meshes in the width direction of the first finger.

[0032] In some embodiments, the first finger has a mesh structure. The first finger has a second break, which connects two adjacent meshes in the extension direction of the first finger.

[0033] In some embodiments, the first finger has a mesh structure. The first finger has a first break and a second break. The first break connects two adjacent meshes in the width direction of the first finger. The second break connects two adjacent meshes in the extension direction of the first finger.

[0034] In some embodiments, the first body has a plurality of first dummy parts. The first dummy parts are electrically insulated from the first electrode blocks.

[0035] In some embodiments, the second electrode block has a plurality of second dummy parts. The second dummy parts are electrically insulated from the second electrode blocks.

[0036] In some embodiments, the first body has a plurality of first dummy parts. The first dummy parts are electrically insulated from the first electrode blocks. The second electrode block has a plurality of second dummy parts. The second dummy parts are electrically insulated from the second electrode blocks.

[0037] In the above touch control layer, the first sensing electrode has a first finger, the second sensing electrode has a groove, and the first finger extends into the groove of the second sensing electrode, which can increase the mutual capacitance Cm between the first sensing electrode and the second sensing electrode. Since the mutual capacitance Cm is positively correlated with the signal amount ΔCm, the signal amount ΔCm will also increase. In addition, the embodiment adds a conductive pattern group between the first sensing electrode and the second sensing electrode. The conductive pattern group includes a plurality of conductive patterns distributed along the boundary section. Although the mutual capacitance Cm between the first sensing electrode and the second sensing electrode decreases, the ratio of the signal amount ΔCm to the mutual capacitance Cm increases. Therefore, the embodiment can more accurately identify the signal change before and after the touch to determine whether a touch occurs.

[0038] On the other hand, a touch control display device is provided, which includes a plurality of sub-pixels, a pixel defining layer, and the touch control layer in any of the above embodiments. The pixel defining layer has a plurality of openings to define the plurality of sub-pixels. The first electrode block, the second electrode block, and the conductive pattern form a mesh structure, which includes a plurality of meshes, and the plurality of meshes include at least one first mesh. The first mesh is surrounded by the first electrode block, the second electrode block, and the conductive pattern. The first mesh is opposite to the opening in the thickness direction of the touch control layer.

[0039] The display device described above comprises the touch layer provided in some of the embodiments described above, and thus has the same beneficial effects as the touch layer, which will not be described again here.

[0040] In another aspect, a method for manufacturing the touch layer of the embodiments described above is provided, comprising: forming a first sensing electrode, a second sensing electrode, and a conductive pattern group. The first sensing electrode and the second sensing electrode are arranged in a cross manner and are insulated from each other. The first sensing electrode comprises a plurality of first electrode blocks electrically connected to each other; the second sensing electrode comprises a plurality of second electrode blocks electrically connected to each other. The first electrode block comprises a first body and a plurality of first finger portions protruding from the first body. The second electrode block comprises a plurality of grooves at the edge, and the first finger portions extend into the grooves. The conductive pattern group comprises a plurality of conductive patterns distributed along a boundary section. The boundary section is a part between the same side end points of two adjacent first finger portions in the boundary line of the first electrode block and the second electrode block. The conductive pattern is surrounded by the first electrode block and the second electrode block, and is insulated from the first electrode block and the second electrode block. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings needed to be used in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only the drawings of some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limited to the actual size, actual process, actual timing of signals, etc. of the products involved in the embodiments of the present disclosure.

[0042] FIG. 1A A side view of the touch display device provided according to some embodiments;

[0043] FIG. 1B A structure diagram of the display device of FIG. 1A

[0044] FIG. 1C A top view of the display device of FIG. 1A

[0045] FIG. 2 An enlarged view of D1 in FIG. 1C

[0046] FIG. 3 A structure diagram of the first electrode block in FIG. 2

[0047] FIG. 4 A structure diagram of the first electrode block in FIG. 2

[0048] FIG. 5 A structure diagram of the first electrode block in FIG. 2 ​​​​​Structure of the second electrode block;

[0049] FIG. 6A For FIG. 3 Enlargement at D3;

[0050] FIG. 6B For FIG. 3 Alternative enlargement at D3;

[0051] FIG. 6C For FIG. 3 Yet another alternative enlargement at D3;

[0052] FIG. 7 Simulation data table for some embodiments;

[0053] FIG. 8 For FIG. 3 Yet another alternative enlargement at D3;

[0054] FIG. 9 For FIG. 3 Yet another alternative enlargement at D3;

[0055] FIG. 10 For FIG. 3 Yet another alternative enlargement at D3;

[0056] FIG. 11 For FIG. 3 Yet another alternative enlargement at D3;

[0057] FIG. 12 For FIG. 3 Yet another alternative enlargement at D3;

[0058] FIG. 13 For FIG. 3 Yet another alternative enlargement at D3;

[0059] FIG. 14 For FIG. 3 Yet another alternative enlargement at D3;

[0060] FIG. 15 For FIG. 3 Yet another alternative enlargement at D3;

[0061] FIG. 16 For FIG. 3 Yet another alternative enlargement at D3;

[0062] FIG. 17 For FIG. 3 Yet another alternative enlargement at D3;

[0063] FIG. 18A ForFIG. 3 sectional view along A1-A2;

[0064] FIG. 18B is an exploded view of FIG. 18A

[0065] FIG. 19A is another sectional view along A1-A2; FIG. 3

[0066] FIG. 19B is an exploded view of FIG. 19A

[0067] FIG. 20A is yet another sectional view along A1-A2; FIG. 3

[0068] FIG. 20B is an exploded view of FIG. 20A

[0069] FIG. 21A is yet another sectional view along A1-A2; FIG. 3

[0070] FIG. 21B is an exploded view of FIG. 21A DETAILED DESCRIPTION

[0071] The technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present disclosure.

[0072] ​​​​​​​Unless otherwise required by context, as used herein the terms "comprise", "comprises", "comprising", "includes", "including", "have", "has", "having", or variants thereof are to be construed as open-ended, i.e., to mean including, but not limited to, to mean including at least the recited members, but not excluding other like members. In describing some embodiments, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In describing some embodiments, the terms "about" and "substantially" are used to indicate approximations, allowing for a degree of variance, equivalent elements, and / or functional alternatives due to manufacturing, processing, and / or material variations, as well as changes in operational and / or environmental conditions. The use of the terms "about" and "substantially" does not limit the scope of the disclosure to only the recited approximation, equivalent element, and / or functional alternative. In describing some embodiments, the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples" are used to indicate that the described embodiment(s) is(are) among other embodiments, but not necessarily the only embodiment(s). The use of these terms does not limit the scope of the disclosure to only the described embodiment(s). In addition, the described particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0073] Hereinafter, the terms "first", "second", etc. are used only for the purpose of description, and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the meaning of "plurality" is two or more, unless otherwise specified.

[0074] In describing some embodiments, the terms "coupled" and "connected" and variations thereof can be used. For example, the term "connected" can be used to indicate that two or more components are in direct physical or electrical contact with each other. As another example, the term "coupled" can be used to indicate that two or more components are in direct physical or electrical contact with each other. However, the terms "coupled" or "communicatively coupled" can also mean that two or more components are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content herein.

[0075] "A, B, and C at least one of" has the same meaning as "at least one of A, B, or C", and includes the following combinations: only A, only B, only C, a combination of A and B, a combination of A and C, a combination of B and C, and a combination of A, B, and C.

[0076] "A and / or B" includes the following three combinations: only A, only B, and a combination of A and B.

[0077] The use of “adapted to” or “configured to” herein means an open and inclusive language that does not exclude devices that are adapted to or configured to perform additional tasks or steps.

[0078] As used herein, “about,” “substantially,” or “approximately” includes the recited value and the average value within an acceptable range of deviation from the recited value, as determined by one of ordinary skill in the art considering the measurement in question and the error in measuring the particular quantity (i.e., the limitations of the measurement system).

[0079] As used herein, “parallel,” “perpendicular,” “equal” includes the recited condition and conditions that approximate the recited condition, the approximation being within an acceptable range of deviation, as determined by one of ordinary skill in the art considering the measurement in question and the error in measuring the particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallel and near parallel, where near parallel can have an acceptable range of deviation, for example, within 5°; “perpendicular” includes absolute perpendicular and near perpendicular, where near perpendicular can also have an acceptable range of deviation, for example, within 5°. “Equal” includes absolute equality and near equality, where near equality can have an acceptable range of deviation, for example, a difference between the two that is less than or equal to 5% of either.

[0080] It will be understood that when a layer or element is referred to as being “on” another layer or substrate, it can be directly on the other layer or substrate, or intervening layers can also be present.

[0081] Exemplary embodiments are described herein with reference to cross-sectional and / or plan view illustrations that are idealized examples of exemplary embodiments. In the drawings, the thickness of layers and regions are exaggerated for clarity. Accordingly, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and / or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the particular shapes of regions as illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region illustrated as a rectangle will typically have rounded or curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the precise shape of a region of a device and are not intended to limit the scope of the exemplary embodiments.

[0082] Embodiments of the present disclosure provide a touch display device. The touch display device can be a product with a touch function and an image display function. For example, the touch display device can be a display, a television, a personal computer, a notebook computer, an advertising board, a digital photo frame, a laser printer with a display function, a telephone, a mobile phone, a digital camera, an electronic picture screen, a camcorder, a viewfinder, a monitor, a navigator, a vehicle, a large-area wall, or an information query device (such as a business query device of an electronic government, a bank, a hospital, a power company, etc.), a vehicle-mounted display, and the like.

[0083] For another example, the touch display device can also be a touch display panel (which can also be referred to as a touch display screen).

[0084] For another example, the touch display device can include other electronic devices in addition to the touch display panel, such as a touch chip, a display driver integrated circuit (DDIC), and a mainboard, etc. The touch chip is coupled to the touch display panel and is configured to determine a touch position (such as a touch coordinate) based on a touch signal provided by the touch display panel. The mainboard is coupled to the DDIC and is configured to output corresponding image data to the DDIC based on the touch position determined by the touch chip. The DDIC is coupled to the touch display panel and is configured to drive the touch display panel to display a corresponding image based on the received image data.

[0085] FIG. 1A A side view of the touch display device according to some embodiments. FIG. 1B A structure diagram of the display device of FIG. 1A Referring to FIG. 1A and FIG. 1B , the touch display device (for example, a touch display panel) includes a display panel DP and a touch layer TL. The assembly formed by the display panel DP and the touch layer TL can also be referred to as a touch display panel.

[0086] Referring to FIG. 1A , the display panel DP is a screen with a display function, and can be coupled to the DDIC described above and configured to receive a data signal sent by the DDIC and display a corresponding image. For example, the display panel DP can be an OLED (Organic Light Emitting Diode) display panel, a QLED (Quantum Dot Light Emitting Diodes) display panel, a micro LED (including: mini LED or micro LED) display panel, etc.

[0087] The display panel DP has a display surface DP1 and a non-display surface DP2 opposite along the thickness direction of the display panel DP. A user can view a picture facing the display surface DP1 of the display panel DP. That is, the display surface DP1 of the display panel DP is the side facing away from the non-display surface DP2, which is referred to as the display side of the display panel DP hereinafter.

[0088] Continuing to refer to FIG. 1A The touch layer TL is configured to provide a touch signal, which can reflect the touch position of the user on the display panel DP. The touch layer TL can be coupled with the touch chip to provide the touch signal to the touch chip.

[0089] In some possible implementation manners, the touch layer TL can be located on the display side of the display panel DP. The touch layer TL can be a component independent of the display panel DP; for example, the display panel DP and the touch layer TL are both formed separately, and then bonded together by an adhesive such as optical glue. The touch layer TL can also be a structure integrated on the display panel DP. For example, the touch layer TL is formed on the display surface DP1 of the display panel DP with the display panel DP as a substrate, and the touch layer TL is in direct contact with the display surface DP1 of the display panel DP, or other functional layers can be provided between the touch layer TL and the display surface DP1 of the display panel DP.

[0090] In another possible implementation manner, the touch layer can also be located inside the display panel. For example, the display panel includes oppositely arranged first and second substrates, and the touch layer can be located between the first and second substrates.

[0091] The display panel DP can include a plurality of sub-pixels, each of which includes a pixel driving circuit and a light emitting device coupled with each other, and the pixel driving circuit is configured to drive the light emitting device to emit light. The pixel driving circuit can include a plurality of electronic device elements such as transistors and capacitors. For example, the pixel driving circuit can include three transistors and one capacitor, constituting 3T1C (i.e., one driving transistor, two switching transistors, and one capacitor). It can also include more than three transistors and at least one capacitor, such as 4T1C (i.e., one driving transistor, three switching transistors, and one capacitor), 5T1C (i.e., one driving transistor, four switching transistors, and one capacitor), or 7T2C (i.e., one driving transistor, six switching transistors, and two capacitors), etc. The transistors can be thin film transistors (TFT), metal oxide semiconductors (MOS), or other switching devices with the same characteristics. The light emitting device can be an OLED or a QLED.

[0092] To realize the sub-pixel structure mentioned above, exemplary, continue to refer to FIG. 1B The display panel DP includes: a substrate DP10, a pixel driving circuit layer DP11 and a light emitting device layer DP12 which are sequentially stacked.

[0093] The structure of the substrate DP10 can be selected according to actual needs.

[0094] For example, the substrate DP10 can be a rigid substrate. The rigid substrate may, for example, include a glass substrate PMMA (Polymethyl methacrylate). In this case, the display panel DP can be a rigid display panel.

[0095] For another example, the substrate DP10 can be a flexible substrate. The flexible substrate may, for example, include a PET (Polyethyleneterephthalate) substrate, a PEN (Polyethylene naphthalate twoformic acid glycol ester) substrate or a PI (Polyimide) substrate. In this case, the display panel DP can be a flexible display panel.

[0096] The substrate DP10 can be a single-layer structure, and can also be a multi-layer structure. For example, the substrate can include at least one flexible substrate and at least one buffer layer, and the flexible substrate and the buffer layer are alternately stacked.

[0097] Exemplary, continue to refer to FIG. 1B As shown in the figure, the pixel driving circuit layer DP11 can include: an active pattern layer DP111, a first conductive pattern layer DP112 and a second conductive pattern layer DP113 which are sequentially stacked; and can also include an insulating layer DP114 which separates the pattern layers. These layers can form a plurality of pixel driving circuits.

[0098] In embodiments of the present disclosure, a "pattern layer" can be a layer structure containing specific patterns formed by using the same film forming process to form at least one film layer and then performing a patterning process on the at least one film layer. Depending on the specific patterns, the patterning process can include multiple times of coating, exposure, development or etching processes, and the specific patterns in the layer structure formed can be continuous or discontinuous, and can also be at different heights (or thicknesses). A "conductive pattern layer" is a pattern layer having conductive properties, which is made of a conductive material. Exemplarily, the "conductive pattern layer" is made of a transparent conductive material. For example, it can be selected from at least one of indium tin oxide (ITO), aluminum-doped zinc oxide (AZO), etc., which is both conductive and has a high light transmittance in the visible light range. The "conductive pattern layer" can also be made of a metal material, for example, it can be at least one of aluminum (Al), silver (Ag), copper (Cu), chromium (Cr), etc.

[0099] The first conductive pattern layer DP112 includes a plurality of gates DP112a, the active pattern layer DP111 includes a plurality of active patterns DP111a, and the second conductive pattern layer DP113 includes a plurality of sources DP113a and a plurality of drains DP113b. For example, one active pattern DP111a, one gate DP112a, one source DP113a and one drain DP113b can constitute one transistor, and a plurality of transistors can constitute one pixel driving circuit.

[0100] In addition, the pixel driving circuit layer can further include a third conductive pattern layer DP115 between the first conductive pattern layer DP112 and the second conductive pattern layer DP113. For example, the first conductive pattern layer DP112 further includes a first capacitor plate DP112b, and the third conductive pattern layer DP115 further includes a second capacitor plate DP115a; the first capacitor plate DP112b and the second capacitor plate DP115a are oppositely arranged to form a capacitor in the pixel driving circuit. In other examples, the second capacitor plate DP115a can also be included in the second conductive pattern layer DP113.

[0101] The light emitting device layer DP12 can include a pixel defining layer DP121 and a plurality of light emitting devices DP122. The pixel defining layer DP121 has a plurality of openings P, and one opening P defines the position of one light emitting device DP122.

[0102] Exemplarily, the light emitting device DP122 includes a first electrode (e.g., an anode) DP122a, a light emitting layer DP122b and a second electrode (e.g., a cathode) DP122c which are sequentially stacked.

[0103] For example, the structure of the first electrode DP122a can be a composite structure composed of a transparent conductive oxide thin film / metal thin film / transparent conductive oxide thin film stacked in sequence. The material of the transparent conductive oxide thin film can be, for example, any one of ITO and IZO, and the material of the metal thin film can be, for example, any one of gold (Au), silver (Ag), nickel (Ni), and platinum (Pt).

[0104] For another example, the structure of the first electrode DP122a can also be a single-layer structure, and the material of the single-layer structure can be any one of ITO, IZO, Au, Ag, Ni, and Pt.

[0105] For example, continuing to refer to FIG. 1B Among the plurality of openings P of the pixel defining layer DP121, one opening P exposes at least a portion (part or all) of one first electrode DP122a. At least a portion of one light-emitting layer DP122b is located within the one opening P and forms an electrical connection with the corresponding first electrode DP122a.

[0106] Here, the arrangement of the light-emitting layer DP122b is related to the preparation process of the light-emitting layer DP122b. For example, in the case of forming the light-emitting layer DP122b by using an evaporation process, a portion of the light-emitting layer DP122b can be located within the corresponding opening P, and another portion of the light-emitting layer DP122b can be overlapped on the pixel defining layer DP121 around the opening P. Of course, the entire light-emitting layer DP122b can also be located within the corresponding opening P. In the case of forming the light-emitting layer DP122b by using an inkjet printing technology, the entire light-emitting layer DP122b can be located within the corresponding opening P.

[0107] For example, continuing to refer to FIG. 1B The second electrode DP122c is located on the side of the pixel defining layer DP121 away from the substrate DP10. The second electrodes DP122c of the light-emitting devices can be electrically connected to each other and form an integrated structure.

[0108] For example, the material of the second electrode DP122c can be any one of aluminum (Al), silver (Ag), and magnesium (Mg), or any one of a magnesium-silver alloy and an aluminum-lithium alloy.

[0109] Of course, the light-emitting device layer DP12 can further include at least one of a hole injection layer, a hole transport layer, and an electron blocking layer arranged between the first electrode DP122a and the light-emitting layer DP122b, and at least one of an electron injection layer, an electron transport layer, and a hole blocking layer arranged between the second electrode DP122c and the light-emitting layer DP122b.

[0110] In some possible embodiments, continuing to refer to FIG. 1BThe display panel DP can further include a first planarization layer PLN1 between the light emitting device layer DP12 and the pixel driving circuit layer DP11, the first planarization layer PLN1 being in direct contact with the light emitting device layer DP12.

[0111] With continued reference to FIG. 1B In the case that the display panel further includes the first planarization layer PLN1, the first electrode DP122a of the light emitting device DP122 is disposed on a side surface of the first planarization layer PLN1 away from the substrate DP10. The first electrode DP122a of one light emitting device layer DP12 can be electrically connected with one pixel driving circuit through the first planarization layer PLN1.

[0112] In some possible embodiments, with continued reference to FIG. 1B The display panel DP can further include a fourth conductive pattern layer DP116 between the first planarization layer PLN1 and the pixel driving circuit layer DP11. The fourth conductive pattern layer DP116 can include a plurality of connection portions DP116a.

[0113] In the case that the pixel driving circuit layer DP11 further includes the fourth conductive pattern layer DP116, the first electrode DP122a of one light emitting device DP122 can be electrically connected with one pixel driving circuit through one connection portion DP116a.

[0114] In some possible embodiments, with continued reference to FIG. 1B The display panel DP can further include a second planarization layer PLN2 and a passivation layer PVX on a side of the pixel driving circuit layer DP11 away from the substrate DP10. The second planarization layer PLN2 can be made of an organic insulating material. The passivation layer PVX can be made of an inorganic insulating material.

[0115] In some possible embodiments, with continued reference to FIG. 1B The display panel DP further includes an encapsulation layer DP13 disposed on a side of the light emitting device layer DP12 away from the substrate DP10.

[0116] Illustratively, with continued reference to FIG. 1B The encapsulation layer DP13 includes a first inorganic insulating layer DP131, an organic insulating layer DP132 and a second inorganic insulating layer DP133 stacked in sequence.

[0117] Illustratively, the first inorganic insulating layer DP131 and the second inorganic insulating layer DP133 can be made of an inorganic material of nitride, oxide, oxynitride, nitrate, carbide or any combination thereof. The organic insulating layer DP132 can be made of acrylic, hexamethyldisiloxane, polyacrylate, polycarbonate, polystyrene or the like.

[0118] Continuing to refer to FIG. 1C Exemplarily, the encapsulation layer DP13 in the above can serve as a display surface of the display panel DP. For example, the touch layer TL can be formed on the encapsulation layer DP13 by a process such as photolithography. For another example, the display device can further include a buffer layer DP14 disposed on a side of the encapsulation layer DP13 distal to the substrate DP10. The touch layer TL can be disposed on the buffer layer DP14 and can be in contact with the buffer layer DP14.

[0119] Continuing to refer to FIG. 1C The display panel DP has a display area AA and a non-display area SA, where the display area AA is an area of the display panel DP for displaying a picture, and the non-display area SA is an area of the display panel DP other than the display area AA. The non-display area SA can be located at least one side (e.g., one side, for another example, multiple sides) of the display area AA. For example, the non-display area SA can be disposed around the display area AA.

[0120] Exemplarily, the display area AA can be rectangular, or a rounded rectangle, or a shape similar to a rectangle. Based on this, the display area AA has two edges intersecting with each other (e.g., perpendicular to each other). For the convenience of description, a rectangular coordinate system is established with the extension directions of the two edges as the X-axis and the Y-axis, respectively.

[0121] Continuing to refer to FIG. 1C The touch layer TL can include a set of first sensing electrodes 100 (including N first sensing electrodes 100, N≥1; for example, N=1, for another example, N≥2) and a set of second sensing electrodes 200 (including M second sensing electrodes 200, M≥1; for example, M=1, for another example, M≥2) intersecting and insulated with each other. Exemplarily, in the case that the touch layer TL includes a plurality of first sensing electrodes 100, the plurality of first sensing electrodes 100 can be arranged at intervals along a first direction X. In the case that the touch layer TL further includes a plurality of second sensing electrodes 200, the plurality of second sensing electrodes 200 can be arranged at intervals along a second direction Y. Wherein, the second direction Y and the first direction X intersect with each other, for example, perpendicular to each other. For example, the second direction Y is the direction indicated by the Y-axis, and the first direction X is the direction indicated by the X-axis. In addition, FIG. 2 The second direction Y and the first direction X shown in the above can be interchangeable.

[0122] For example, the first sensing electrodes 100 serve as touch scanning electrode strips (TX), and the second sensing electrodes 200 serve as touch sensing electrode strips (RX). For another example, the first sensing electrodes 100 serve as touch sensing electrode strips, and the second sensing electrodes 200 serve as touch scanning electrode strips.

[0123] The first sensing electrodes 100 and the second sensing electrodes 200 can correspond to a display area AA of the display panel DP. That is, each of the first sensing electrodes 100 and each of the second sensing electrodes 200 has a normal projection on the display panel DP at least partially (i.e., partially or entirely) in the display area AA, so that the touch layer TL can sense a touch operation corresponding to the display area AA.

[0124] Herein, the normal projection of A on B means the projection of A on the plane of B along a direction perpendicular to the plane of B. For example, the normal projection of the first sensing electrode 100 on the display panel DP means the projection of the first sensing electrode 100 on the display panel DP along the thickness direction of the display panel DP.

[0125] In addition, the first sensing electrodes 100 can be coupled to the touch chip through a first group of lead lines TB1', and the second sensing electrodes 200 can be coupled to the touch chip through a second group of lead lines TB2'. The first group of lead lines TB1' and the second group of lead lines TB2' can be included in the touch layer TL or the display panel DP. The first sensing electrodes 100 and the second sensing electrodes 200 can be divided into a plurality of capacitive units T (shown in FIG. 1B), each of which can include a cross position (i.e., a cross position of a first sensing electrode and a second sensing electrode). The shape and structure of each capacitive unit can be substantially the same, and thus can be referred to as a repetitive unit. FIG. 2 In a capacitive unit, the mutual capacitance value of the first sensing electrode 100 and the second sensing electrode 200 when not touched by a finger (e.g., when a finger does not touch the touch display device) is denoted as Cm. In a capacitive unit, the difference (which can also be referred to as a tolerance value or a signal amount) between the mutual capacitance values of the first sensing electrode 100 and the second sensing electrode 200 before and after being touched is denoted as ΔCm; that is, the difference between the mutual capacitance value of the first sensing electrode 100 and the second sensing electrode 200 when touched by a finger and Cm.

[0126] The touch process of the touch display device can satisfy the following condition: if the ΔCm / Cm of a capacitive unit is large, the touch chip (TIC) can accurately identify the signal change before and after touch and determine whether touch occurs. However, in the conventional scheme, the signal amount ΔCm is small, and ΔCm / Cm is also small, so that the case of being unable to accurately identify the signal change before and after touch can occur.

[0127] FIG. 1C For FIG. 3 Enlarged view at D1. FIG. 2 For FIG. 2 Enlarged view at D2. See FIG. 1CSome embodiments of the present disclosure provide a touch layer TL. A first sensing electrode 100 of the touch layer TL includes a plurality of first electrode blocks 110 electrically connected to each other. Exemplarily, the plurality of first electrode blocks 110 are arranged along a second direction Y, and the first electrode blocks 110 arranged in a column form a first sensing electrode 100. If N first sensing electrodes 100 are required to be arranged in the touch layer TL (as shown in FIG. 4 any one of which is denoted as 100(i), N≥i≥1. In the case of N≥2, the N first sensing electrodes 100 can be arranged at intervals along a first direction X. In the first sensing electrode 100, two adjacent first electrode blocks 110 are denoted as an Sth row first electrode block 110_1 and a Tth row first electrode block 110_2, where S is smaller than T by 1. Exemplarily, in the plurality of first electrode blocks 110, two adjacent first electrode blocks 110 (e.g., the Sth row first electrode block 110_1 and the Tth row first electrode block 110_2) are electrically connected by a connecting bridge 400.

[0128] Exemplarily, the material of the first sensing electrode 100 is a transparent conductive material, which can be selected from at least one of indium tin oxide (ITO), aluminum-doped zinc oxide (AZO), etc., and can conduct electricity and have a high light transmittance in the visible light range.

[0129] The second sensing electrode 200 is arranged crosswise to the first sensing electrode 100. Exemplarily, the second sensing electrode 200 extends along the first direction X. If M second sensing electrodes 200 are required to be arranged in the touch layer TL, any one of which is denoted as 200(j), M≥j≥1. In the case of M≥2, the M first sensing electrodes 100 can be arranged at intervals along the second direction Y.

[0130] The second sensing electrode 200 includes a plurality of second electrode blocks 210 electrically connected to each other. In the second sensing electrode 200, two adjacent second electrode blocks 210 are denoted as a Wth column second electrode block 210_1 and a Vth column second electrode block 210_2, where W is smaller than V by 1. Exemplarily, the plurality of second electrode blocks 210 are arranged in a row to form a second sensing electrode 200. One (e.g., each) second sensing electrode 200 can be a unitary structure. For example, in the plurality of second electrode blocks 210, two adjacent second electrode blocks 210 (e.g., the Wth column second electrode block 210_1 and the Vth column second electrode block 210_2) are connected by a connecting portion 220 to form a unitary structure. The second sensing electrode 200 is insulated from the first sensing electrode 100. Exemplarily, the second sensing electrode 200 passes between two adjacent first electrode blocks 110. The second sensing electrode 200 and the first electrode block 110 are insulated from each other by an insulating gap.

[0131] Exemplarily, the material of the second sensing electrode 200 can refer to the introduction above for the first sensing electrode 100. For example, the material of the second sensing electrode 200 and the first sensing electrode 100 can be the same or different.

[0132] FIG. 2 For example, the first electrode block 110 and the second electrode block 210 can be arranged in a matrix form. FIG. 5 For example, the first electrode block 110 and the second electrode block 210 can be arranged in a matrix form. FIG. 2 For example, the first electrode block 110 and the second electrode block 210 can be arranged in a matrix form. FIG. 2~FIG. 5 For example, the first electrode block 110 and the second electrode block 210 can be arranged in a matrix form. FIG. 2~FIG. 5 In some embodiments, the first electrode block 110 includes a first body 111 and a plurality of first fingers 112 protruding from the first body 111, and the second electrode block 210 has a plurality of grooves 211 located at the edges, at the intersection position K between the first sensing electrode 100 and the second sensing electrode 200.

[0133] Continuing to refer to FIG. 3 Exemplarily, the edges of the two adjacent first electrode blocks 110 (for example, the Sth row of first electrode blocks 110_1 and the Tth row of first electrode blocks 110_2) are each provided with a plurality of first fingers 112 near the intersection position K(ij) between the first sensing electrode 100(i) and the second sensing electrode 200(j). Exemplarily, the plurality of first fingers 112 on each edge are arranged at equal intervals along the edge of the first body 111. In addition, the second electrode block 210 has a plurality of grooves 211 located at the edges near the intersection position K between the first sensing electrode 100 and the second sensing electrode 200. Exemplarily, the edges of the two adjacent second electrode blocks 210 (for example, the Wth column of second electrode blocks 210_1 and the Vth column of second electrode blocks 210_2) are each provided with a plurality of grooves 211 near the intersection position K(ij). Exemplarily, the plurality of grooves 211 are arranged at equal intervals along the edge of the second sensing electrode 200. Exemplarily, the second electrode block 210 includes a second body 212 and a second finger 213 protruding from the second body 212. The groove 211 is a gap between the two adjacent second fingers 213.

[0134] Continuing to refer to FIG. 2~FIG. 3The first finger 112 extends into the groove 211. Exemplarily, the first edge ed1 and the second edge ed2 of the first electrode block 110_1 in the first row are each provided with a plurality of first fingers 112; the third edge ed3 and the fourth edge ed4 of the first electrode block 110_2 in the Tth row are each provided with a plurality of first fingers 112. The first edge ed1 and the fourth edge ed4 extend along the third direction E, and the second edge ed2 and the third edge ed3 extend along the fourth direction F. The fifth edge ed5 and the sixth edge ed6 of the second electrode block 210_1 in the Wth column are each provided with a plurality of grooves 211, and the seventh edge ed7 and the eighth edge ed8 of the second electrode block 210_2 in the Vth column are each provided with a plurality of grooves 211. The fifth edge ed5 is opposite to the first edge ed1 along the fourth direction F, the seventh edge ed7 is opposite to the fourth edge ed4 along the fourth direction F, the sixth edge ed6 is opposite to the third edge ed3 along the third direction E, and the eighth edge ed8 is opposite to the second edge ed2 along the third direction E. The plurality of first fingers 112 on the first edge ed1 and the plurality of grooves 211 on the fifth edge ed5 are one-to-one corresponding, and the first finger 112 on the first edge ed1 extends into the groove 211 on the fifth edge ed5. The plurality of first fingers 112 on the second edge ed2 and the plurality of grooves 211 on the eighth edge ed8 are one-to-one corresponding, and the first finger 112 on the second edge ed2 extends into the groove 211 on the eighth edge ed8. The plurality of first fingers 112 on the third edge ed3 and the plurality of grooves 211 on the sixth edge ed6 are one-to-one corresponding, and the first finger 112 on the third edge ed3 extends into the groove 211 on the sixth edge ed6. The plurality of first fingers 112 on the fourth edge ed4 and the plurality of grooves 211 on the seventh edge ed7 are one-to-one corresponding, and the first finger 112 on the fourth edge ed4 extends into the groove 211 on the seventh edge ed7.

[0135] Referring to FIG. 4 In the embodiment, the first finger 112 is arranged on the first sensing electrode 100 in the capacitive unit T, and the groove 211 is arranged on the second sensing electrode 200. The first finger 112 extends into the groove 211 of the second sensing electrode 200, so that the mutual capacitance Cm between the first sensing electrode 100 and the second finger 213 of the second sensing electrode 200 is increased. Since the mutual capacitance Cm is positively correlated with the signal amount △Cm, the signal amount △Cm is also increased. However, the increase of the signal amount △Cm is greater than the increase of the mutual capacitance Cm. Therefore, the embodiment can more accurately identify the signal change before and after the touch, and determine whether the touch occurs.

[0136] Referring to FIG. 5Some embodiments of the present disclosure provide a touch layer TL. A plurality of first dummy parts 111a are arranged in a first body 111 of the touch layer TL. The first dummy parts 111a have a grid structure. For example, the first dummy parts 111a are formed by a plurality of conductive lines crossing each other to form a grid structure. The plurality of first dummy parts 111a are uniformly distributed in the first body 111. For example, the first dummy parts 111a are equally spaced in the first body 111 along the length and width directions thereof. The first dummy parts 111a are electrically insulated from the first electrode blocks 110. The first dummy parts 111a and the first electrode blocks 110 are electrically insulated by a gap therebetween. In this way, the area of the first body 111 can be reduced, thereby reducing the self-capacitance of the first body 111 and the charging time of the cathode, and ultimately improving the scanning frequency and the point reporting rate.

[0137] For example, the side length of the first dummy part 111a is less than or equal to 1000 microns. This avoids the touch failure caused by the user's finger touching all the first dummy parts 111a.

[0138] Referring to FIG. 4~FIG. 5 In some possible embodiments, a plurality of first dummy parts 111a are arranged in the first body 111. The first dummy parts 111a have a grid structure. For example, the first dummy parts 111a are formed by a plurality of conductive lines crossing each other to form a grid structure. The plurality of first dummy parts 111a are uniformly distributed in the first body 111. For example, the first dummy parts 111a are equally spaced in the first body 111 along the length and width directions thereof. The first dummy parts 111a are electrically insulated from the first electrode blocks 110. The first dummy parts 111a and the first electrode blocks 110 are electrically insulated by a gap therebetween.

[0139] For example, the side length of the second dummy part 215 is less than or equal to 1000 microns. The effects achieved by the present embodiment are consistent with those of the above-mentioned embodiments, which will not be repeated here.

[0140] Referring to FIG. 6A In some possible embodiments, a plurality of first dummy parts 111a are arranged in the first body 111. The first dummy parts 111a have a grid structure. For example, the first dummy parts 111a are formed by a plurality of conductive lines crossing each other to form a grid structure. The plurality of first dummy parts 111a are uniformly distributed in the first body 111. For example, the first dummy parts 111a are equally spaced in the first body 111 along the length and width directions thereof. The first dummy parts 111a are electrically insulated from the first electrode blocks 110. The first dummy parts 111a and the first electrode blocks 110 are electrically insulated by a gap therebetween.

[0141] The second electrode block 210 is provided with a plurality of second dummy portions 215. The second dummy portions 215 have a grid structure. Exemplarily, the second dummy portions 215 are formed by a plurality of conductive lines crossing each other to form a grid structure. The plurality of second dummy portions 215 are uniformly distributed in the second electrode block 210. For example, the second dummy portions 215 are uniformly spaced apart along the length and width of the second electrode block 210. The second dummy portions 215 are electrically insulated from the second electrode block 210. The second dummy portions 215 and the second electrode block 210 are electrically insulated from each other by a gap therebetween. The effects achieved by the present embodiment are consistent with those of the above-mentioned embodiments, and will not be repeated here.

[0142] Exemplarily, the side length of the first dummy portion 111a and the second dummy portion 215 is less than or equal to 1000 microns. The effects achieved by the present embodiment are consistent with those of the above-mentioned embodiments, and will not be repeated here.

[0143] FIG. 3 For FIG. 6B An enlarged view of D3. FIG. 3 For FIG. 6C An alternative enlarged view of D3. FIG. 3 For FIG. 6A~FIG. 6C Yet another alternative enlarged view of D3. See FIG. 6B In some other embodiments, the touch layer TL further comprises a group of conductive patterns 300. The group of conductive patterns 300 comprises a plurality of conductive patterns 310 spaced apart along a boundary segment L. The boundary segment L is a portion of the boundary line between the first electrode block 110 and the second electrode block 210, between the same side root end points of two adjacent first finger portions 112. The two adjacent first finger portions 112 are labeled as a previous first finger portion 112a and a next first finger portion 112b, respectively. The heel end points of the previous first finger portion 112a are labeled as an upper first heel end point a1 and an upper second heel end point a2. The heel end points of the next first finger portion 112b are labeled as a lower first heel end point b1 and a lower second heel end point b2. For example, the boundary segment L is a portion of the boundary line between the first electrode block 110 and the second electrode block 210, between the first side root end points of two adjacent first finger portions 112. In this way, the starting point of the boundary segment L is the upper first heel end point a1 of the previous first finger portion 112a, and the ending point is the lower first heel end point b1 of the next first finger portion 112b (see FIG. 6C ). The boundary segment L sequentially comprises a portion around the edge of the first body 111 and a portion around the first finger portion 112 from the starting point to the ending point. For another example, the boundary segment L is a portion of the boundary line between the first electrode block 110 and the second electrode block 210, between the second side root end points of two adjacent first finger portions 112. In this way, the starting point of the boundary segment L is the upper second heel end point a2 of the previous first finger portion 112a, and the ending point is the lower second heel end point b2 of the next first finger portion 112b (see FIG. 7). The boundary section L is sequentially a section around a part of the first finger 112 and a section around a part of the edge of the first body 111 from the start point to the end point.

[0144] The conductive pattern 310 is commonly surrounded by the first electrode block 110 and the second electrode block 210. That is, the two adjacent conductive patterns 310 are separated by the first electrode block 110 and the second electrode block 210. For example, the two adjacent conductive patterns 310 are separated by the first body 111 of the first electrode block 110 and the second electrode block 210. For another example, the two adjacent conductive patterns 310 are separated by the first finger 112 and the second electrode block 210. For yet another example, the two adjacent conductive patterns 310 are separated by the first body 111, the first finger 112 and the second electrode block 210.

[0145] In addition, the conductive pattern 310 is mutually insulated from the first electrode block 110 and the second electrode block 210. Exemplarily, the first electrode block 110 and the second electrode block 210 are both provided with a gap with the conductive pattern group 300, and the conductive pattern 310 is insulated from the first electrode block 110 through the gap therebetween. Similarly, the conductive pattern 310 is insulated from the second electrode block 210 through the gap therebetween.

[0146] Exemplarily, the material of the conductive pattern group 300 can refer to the above description of the first sensing electrode 100 or the second sensing electrode 200. For example, the material of the conductive pattern group 300 can be the same as or different from that of the second sensing electrode 200 or the first sensing electrode 100.

[0147] The embodiment provides the conductive pattern group 300 between the first sensing electrode 100 and the second sensing electrode 200. Through simulation under the same electrode pattern, simulation data of mutual capacity Cm, signal quantity ΔCm and Cm / ΔCm are obtained, and specific results are shown in Table 1. FIG. 7 FIG. 6A Table 1: Simulation data table of some embodiments.

[0148] It can be seen that, compared with the scheme without the conductive pattern group 300, the mutual capacity Cm is reduced after the conductive pattern group 300 is added; the signal quantity ΔCm is increased or reduced; and the ΔCm / Cm is increased. Although the signal quantity ΔCm is increased or reduced, the ΔCm / Cm is increased, which indicates that the degree of change (increase or decrease) of the signal quantity ΔCm is greater than that of the mutual capacity Cm. Therefore, the embodiment can be more accurate.

[0149] Continuing to refer to Table 1, FIG. 8 ​Some embodiments of this disclosure provide a touch layer TL. The conductive pattern 310 of the touch layer TL is formed by multiple intersecting conductive lines. The conductive pattern 310 has an intersection node 313. Exemplarily, the conductive pattern 310 is formed by two intersecting conductive lines.

[0150] FIG. 3 for FIG. 9 Another alternative magnified view at D3. FIG. 3 for FIG. 8~FIG. 9 Another alternative enlarged view at D3. See also FIG. 8 In some possible embodiments, the conductive pattern 310 has at least two intersection nodes 313 distributed along the boundary segment L. Exemplarily, the conductive pattern 310 is formed by the intersection of a conductive line arranged along the boundary segment L and at least two conductive lines intersecting the boundary segment L. For example, FIG. 9 The conductive pattern 310 shown is formed by the intersection of a conductive line arranged along the boundary segment L and two conductive lines intersecting the boundary segment L. For example, FIG. 10 The conductive pattern 310 shown is formed by a conductive line arranged along the boundary segment L and four conductive lines intersecting the boundary segment L. Additionally, these conductive patterns 310 include at least two sub-conductive patterns, which can be disconnected, for example, by having a cross node 313. These sub-conductive patterns can also be connected together, for example, by having multiple cross nodes 313.

[0151] FIG. 3 for FIG. 11 Another alternative magnified view at D3. FIG. 3 for FIG. 12 Another alternative magnified view at D3. FIG. 3 for FIG. 10~FIG. 12 Another alternative enlarged view at D3. See also... FIG. 7 Some embodiments of this disclosure provide a touch layer TL. In the conductive pattern group 300 of this touch layer TL, the total length of the conductive patterns is less than or equal to half the length of the boundary segment L. See also... FIG. 10 Option 1 (see FIG. 11 The conductive pattern group 300 has four conductive patterns 310; Scheme 4 (see FIG. 12 The conductive pattern group 300 has 8 conductive patterns 310; Scheme 6 (see FIG. 7 The conductive pattern group 300 has 15 conductive patterns 310. According to... FIG. 12 The simulation data shown indicates that, where permissible, the effect of recognizing signal changes before and after touch is better as the number of conductive patterns 310 increases.

[0152] See alsoFIG. 12 In some possible embodiments, the conductive pattern group 300 includes at least one (e.g., one or more) first conductive pattern 311. The first conductive pattern 311 is a conductive pattern.

[0153] The first electrode block 110 has a grid structure. Illustratively, the first electrode block 110 forms a grid structure by a plurality of conductive lines crossing each other. The first electrode block 110 is provided with at least one first grid point vacancy 113 along the boundary section L. The first grid point vacancy 113 causes the grid structure of the first electrode block 110 to form a concave notch at the edge. The first conductive pattern 311 is disposed in the first grid point vacancy 113. Illustratively, the number of the first grid point vacancy 113 is equal to that of the first conductive pattern 311, and the first grid point vacancy 113 is disposed one-to-one corresponding to the first conductive pattern 311. In the present embodiment, the first conductive pattern 311 is disposed in the first grid point vacancy 113, which reduces the mutual capacitance Cm and increases the tolerance value ACm, and further increases ACm / Cm, so as to more accurately identify whether the touch control is performed.

[0154] Continuing to refer to FIG. 13 In yet some possible embodiments, the conductive pattern group 300 includes at least one (e.g., one or more) second conductive pattern 312. The second conductive pattern 312 is a conductive pattern.

[0155] The second electrode block 210 has a grid structure. Illustratively, the second electrode block 210 forms a grid structure by a plurality of conductive lines crossing each other. The second electrode block 210 is provided with at least one second grid point vacancy 214 along the boundary section L. Illustratively, the second grid point vacancy 214 causes the grid structure of the second electrode block 210 to form a concave notch at the edge. The second conductive pattern 312 is disposed in the second grid point vacancy 214. Illustratively, the number of the second grid point vacancy 214 is equal to that of the second conductive pattern 312, and the second grid point vacancy 214 is disposed one-to-one corresponding to the second conductive pattern 312. In the present embodiment, the second conductive pattern 312 is disposed in the second grid point vacancy 214, which reduces the mutual capacitance Cm and increases the tolerance value ACm, and further increases ACm / Cm, so as to more accurately identify whether the touch control is performed.

[0156] FIG. 3 To FIG. 13 Another alternative enlarged view at D3. Referring to FIG. 14Exemplarily, in the conductive pattern group 300, the number of the first conductive patterns 311 and the number of the second conductive patterns 312 are equal. In this way, before and after the conductive pattern group 300 is added, the change amount of the area of the first sensing electrode 100 (not shown in the figure) is equal to the change amount of the area of the second sensing electrode 200 (not shown in the figure), so that the mutual capacitance value Cm is reduced while the tolerance value ACm is basically unchanged, and then ACm / Cm is increased, so that whether the touch is recognized more accurately.

[0157] FIG. 3 For FIG. 14 Another alternative enlarged view at D3. See FIG. 14 In some possible embodiments, the demarcation section L includes a first section L1 and a second section L2 opposite to each other around the first finger portion 112 and along the width direction B of the first finger portion 112. For example, the first section L1 is a part of the demarcation section L connected to the part around the first body 111, and the second section L2 is a part of the demarcation section L away from the part around the first body 111. For another example, the second section L2 is a part of the demarcation section L connected to the part around the first body 111, and the first section L1 is a part of the demarcation section L away from the part around the first body 111.

[0158] The conductive pattern group 300 includes M1 first conductive patterns 311 distributed along the first section L1. And M2 second conductive patterns 312 distributed along the second section L2. For example, the M1 first conductive patterns 311 are distributed along the first section L1 at equal intervals. The M2 second conductive patterns 312 are distributed along the second section L2 at equal intervals. Wherein, M1 and M2 are both greater than or equal to 1.

[0159] Exemplarily, M1 and M2 are equal. In this way, before and after the conductive pattern group 300 is added, the change amount of the area of the first sensing electrode 100 (not shown in the figure) is equal to the change amount of the area of the second sensing electrode 200 (not shown in the figure), so that the capacitance values of the second sensing electrode 200 and the first sensing electrode 100 and the cathode remain consistent, which is beneficial to the debugging of TIC.

[0160] Specifically, at least one (for example, one or more) of the M1 second conductive patterns 312 and at least one (for example, one or more) of the M2 second conductive patterns 312 are opposite to each other along the width direction B of the first finger portion 112. For example, the M1 first conductive patterns 311 and the M2 second conductive patterns 312 are arranged one by one corresponding to each other along the width direction B of the first finger portion 112.

[0161] Continuing to refer to FIG. 14In some possible embodiments, the conductive pattern group 300 includes M3 second conductive patterns 312 distributed along the first section L1 and M4 first conductive patterns 311 distributed along the second section L2. For example, the M3 second conductive patterns 312 are distributed at equal intervals along the first section L1. The M4 first conductive patterns 311 are distributed at equal intervals along the second section L2. Here, M3 and M4 are each greater than or equal to 1.

[0162] For example, M3 and M4 are equal. The effects achieved by this embodiment are consistent with those of the above embodiments, and thus will not be repeated here.

[0163] Specifically, at least one (e.g., one or more) of the M3 second conductive patterns 312 is opposite at least one (e.g., one or more) of the M4 first conductive patterns 311 in the width direction B of the first finger 112. For example, the M3 second conductive patterns 312 are arranged in one-to-one correspondence with the M4 first conductive patterns 311 in the width direction B of the first finger 112.

[0164] Continuing to refer to FIG. 15 In yet some possible embodiments, the conductive pattern group 300 further includes M1 first conductive patterns 311 and M3 second conductive patterns 312 distributed along the first section L1. For example, the M1 first conductive patterns 311 and the M3 second conductive patterns 312 are distributed at intervals along the first section L1. For another example, the M1 first conductive patterns 311 and the M3 second conductive patterns 312 are distributed in sequence along the first section L1. In addition, the conductive pattern group 300 includes M3 second conductive patterns 312 and M4 first conductive patterns 311 distributed along the second section L2. For example, the M3 second conductive patterns 312 and the M4 first conductive patterns 311 are distributed at intervals along the second section L2. For another example, the M3 second conductive patterns 312 and the M4 first conductive patterns 311 are distributed in sequence along the second section L2. Here, M1, M2, M3, and M4 are each greater than or equal to 1.

[0165] For example, M1 and M1 are equal; M3 and M4 are equal. The effects achieved by this embodiment are consistent with those of the above embodiments, and thus will not be repeated here.

[0166] Specifically, at least one (e.g., one or more) of the M1 second conductive patterns 312 is opposite to at least one (e.g., one or more) of the M2 second conductive patterns 312 along the width direction B of the first finger 112. For example, the M1 first conductive patterns 311 are arranged in one-to-one correspondence with the M2 second conductive patterns 312 along the width direction B of the first finger 112. At least one (e.g., one or more) of the M3 second conductive patterns 312 is opposite to at least one (e.g., one or more) of the M4 first conductive patterns 311 along the width direction B of the first finger 112. For example, the M3 second conductive patterns 312 are arranged in one-to-one correspondence with the M4 first conductive patterns 311 along the width direction B of the first finger 112.

[0167] FIG. 3 For FIG. 15 In another alternative enlarged view at D3. See FIG. 15 In some possible embodiments, the boundary section L includes a third section L3 extending around and substantially along the width direction B of the first finger 112. Exemplarily, the third section L3 is located at a portion of the boundary section L between the first section L1 and the second section L2. Also, a fourth section L4 is located between two adjacent first fingers 112. For example, the fourth section L4 is a portion of the boundary section L connected to the start of the first section L1.

[0168] The conductive pattern group 300 further includes N1 first conductive patterns 311 distributed along the third section L3 and N2 second conductive patterns 312 distributed along the fourth section L4. For example, the N1 first conductive patterns 311 are distributed at equal intervals along the third section L3. The N2 second conductive patterns 312 are distributed at equal intervals along the fourth section L4. Wherein, N1 and N2 are both greater than or equal to 1.

[0169] Exemplarily, N1 and N2 are equal. The effects achieved by the present embodiment are consistent with those of the above-described embodiments, which will not be repeated here.

[0170] In other possible embodiments, the conductive pattern group 300 further includes Q1 second conductive patterns 312 distributed along the third section L3 and Q2 first conductive patterns 311 distributed along the fourth section L4. For example, the Q1 second conductive patterns 312 are distributed at equal intervals along the third section L3. The Q2 first conductive patterns 311 are distributed at equal intervals along the fourth section L4. Wherein, Q1 and Q2 are both greater than or equal to 1.

[0171] Exemplarily, Q1 and Q2 are equal. The effects achieved by the present embodiment are consistent with those of the above-described embodiments, which will not be repeated here.

[0172] Continuing to refer to FIG. 16In yet some possible embodiments, the conductive pattern group 300 further comprises N1 first conductive patterns 311 and Q1 second conductive patterns 312 distributed along the third segment L3. For example, the N1 first conductive patterns 311 and the Q1 second conductive patterns 312 are distributed along the third segment L3 at intervals. For another example, the N1 first conductive patterns 311 and the Q1 second conductive patterns 312 are arranged along the third segment L3 in sequence. And, N2 second conductive patterns 312 and Q2 first conductive patterns 311 are distributed along the fourth segment L4. For example, the N2 second conductive patterns 312 and the Q2 first conductive patterns 311 are distributed along the fourth segment L4 at intervals. For another example, the N2 second conductive patterns 312 and the Q2 first conductive patterns 311 are arranged along the fourth segment L4 in sequence.

[0173] wherein N1, N2, Q1 and Q2 are each greater than or equal to 1. The effects achieved by the present embodiment are consistent with those of the above-mentioned embodiments, and thus repeated description is omitted herein.

[0174] FIG. 3 For FIG. 16 In yet another alternative enlarged view at D3. Referring to FIG. 17 Some embodiments of the present disclosure provide a touch layer TL. The touch layer TL is in the case where the conductive pattern group 300 comprises N1 first conductive patterns 311 and N2 second conductive patterns 312. At least one (e.g., one or more) of the N1 first conductive patterns 311 is distributed at an end of the third segment L3. For example, the first conductive pattern 311 is distributed at both the start point and the end point of the third segment L3. For another example, the first conductive pattern 311 is distributed at the start point of the third segment L3, but not at the end point. For yet another example, the first conductive pattern 311 is distributed at the end point of the third segment L3, but not at the start point.

[0175] At least one (e.g., one or more) of the N2 second conductive patterns 312 is distributed at an end of the fourth segment L4. For example, the second conductive pattern 312 is distributed at both the start point and the end point of the fourth segment L4. For another example, the second conductive pattern 312 is distributed at the start point of the fourth segment L4, but not at the end point. For yet another example, the second conductive pattern 312 is distributed at the end point of the fourth segment L4, but not at the start point. The effects achieved by the present embodiment are consistent with those of the above-mentioned embodiments, and thus repeated description is omitted herein.

[0176] FIG. 3 For FIG. 17 In yet another alternative enlarged view at D3. Referring to FIG. 17 Some embodiments of the present disclosure provide a touch layer TL. The touch layer TL is in the case where the conductive pattern group 300 comprises Q1 second conductive patterns and Q2 first conductive patterns.

[0177] Q1 At least one (e.g., one or more) of the second conductive patterns 312 is distributed at an end of the third segment L3. For example, both the start point and the end point of the third segment L3 are distributed with the second conductive patterns 312. For another example, the start point of the third segment L3 is distributed with the second conductive patterns 312, while the end point is not. For yet another example, the end point of the third segment L3 is distributed with the second conductive patterns 312, while the start point is not. The effects achieved by the present embodiment are consistent with those of the above-described embodiments, and thus will not be repeated here.

[0178] Q2 At least one (e.g., one or more) of the first conductive patterns 311 is distributed at an end of the fourth segment L4. For example, both the start point and the end point of the fourth segment L4 are distributed with the first conductive patterns 311. For another example, both the start point and the end point of the fourth segment L4 are distributed with the first conductive patterns 311. For another example, the start point of the fourth segment L4 is distributed with the first conductive patterns 311, while the end point is not. For yet another example, the end point of the fourth segment L4 is distributed with the first conductive patterns 311, while the start point is not. The effects achieved by the present embodiment are consistent with those of the above-described embodiments, and thus will not be repeated here.

[0179] Referring to FIG. 17 Some embodiments of the present disclosure provide a touch layer TL. The first finger portion 112 of the touch layer TL includes a first knuckle ZJ1 and a second knuckle ZJ2. The first knuckle ZJ1 is farther away from the first body 111 than the second knuckle ZJ2. The width of the first knuckle ZJ1 is the dimension of the first knuckle ZJ1 along the width direction B of the first finger portion 112. The width of the second knuckle ZJ2 is the dimension of the second knuckle ZJ2 along the width direction B of the first finger portion 112. The width of the first knuckle ZJ1 is smaller than the width of the second knuckle ZJ2. In this way, the first finger portion 112 includes two patterns with unequal areas, so that the human eye will identify the first finger portion 112 as two patterns when recognizing, thereby reducing the visibility of the first finger portion 112.

[0180] In some possible implementations, the portion of the demarcation segment L surrounding the first knuckle ZJ1 is provided with at least one (e.g., one or more) conductive pattern 310.

[0181] In some possible implementations, the portion of the demarcation segment L surrounding the second knuckle ZJ2 is provided with at least one (e.g., one or more) conductive pattern 310.

[0182] In some possible implementations, the portion of the demarcation segment L surrounding the first knuckle ZJ1 is provided with at least one (e.g., one or more) conductive pattern 310. In addition, the portion of the demarcation segment L surrounding the second knuckle ZJ2 is provided with at least one (e.g., one or more) conductive pattern 310. Referring to FIG. 17Some embodiments of the present disclosure provide a touch layer TL. The first finger 112 of the touch layer TL has a grid structure. Exemplarily, the first finger 112 forms the grid structure by crossing a plurality of conductive lines.

[0183] In some possible embodiments, along the width direction B of the first finger 112, the areas of two adjacent grids 112c are not equal. Since the conductive lines forming the grid structure of the first finger 112 are metal, they will block light. Therefore, when the conductive lines are routed, they are arranged around the RGB pixels. Since the sizes of the RGB pixels are different, the present embodiment can avoid different area RGB pixels, thereby reducing the visibility.

[0184] In some possible embodiments, along the width direction B of the first finger 112, the areas of two adjacent grids 112c are not equal. Since the conductive lines forming the grid structure of the first finger 112 are metal, they will block light. Therefore, when the conductive lines are routed, they are arranged around the RGB pixels. Since the sizes of the RGB pixels are different, the present embodiment can avoid different area RGB pixels, thereby reducing the visibility.

[0185] In some possible embodiments, along the width direction B of the first finger 112, the areas of two adjacent grids 112c are not equal. Since the conductive lines forming the grid structure of the first finger 112 are metal, they will block light. Therefore, when the conductive lines are routed, they are arranged around the RGB pixels. Since the sizes of the RGB pixels are different, the present embodiment can avoid different area RGB pixels, thereby reducing the visibility.

[0186] Referring to FIG. 17 Some embodiments of the present disclosure provide a touch layer TL. The first finger 112 of the touch layer TL has a grid structure. Exemplarily, the first finger 112 forms the grid structure by crossing a plurality of conductive lines.

[0187] In some possible embodiments, the first finger 112 has a first break 112d, which connects two adjacent grids 112c in the width direction B of the first finger 112. In this way, the first finger 112 can be divided into a plurality of patterns, thereby reducing the visibility of the first finger 112.

[0188] In some possible embodiments, the first finger 112 has a second break 112e, which connects two adjacent grids 112c in the extension direction C of the first finger 112. The effects achieved by the present embodiment are consistent with those of the above embodiments, and will not be described here again.

[0189] In yet another possible embodiment, the first finger 112 has a first break 112d that connects two adjacent grids 112c in the width direction B of the first finger 112. The first finger 112 also has a second break 112e that connects two adjacent grids 112c in the extension direction C of the first finger 112. The effects of this embodiment are the same as those of the above-described embodiments, and thus will not be repeated here.

[0190] In yet another possible embodiment, the first body 111 has a grid structure. The first body 111 has a third break. The third break connects two adjacent grids in a third direction E of the first body 111. The effects of this embodiment are the same as those of the above-described embodiments, and thus will not be repeated here.

[0191] In yet another possible embodiment, the first body 111 has a grid structure. The first body 111 has a fourth break. The fourth break connects two adjacent grids in a fourth direction F of the first body 111. The effects of this embodiment are the same as those of the above-described embodiments, and thus will not be repeated here.

[0192] In yet another possible embodiment, the second electrode block 210 has a grid structure. The second electrode block 210 has a fifth break. The fifth break connects two adjacent grids in a third direction E of the second electrode block 210. The effects of this embodiment are the same as those of the above-described embodiments, and thus will not be repeated here.

[0193] In yet another possible embodiment, the second electrode block 210 has a grid structure. The second electrode block 210 has a sixth break. The sixth break connects two adjacent grids in a fourth direction F of the second electrode block 210. The effects of this embodiment are the same as those of the above-described embodiments, and thus will not be repeated here.

[0194] Referring to FIG. 1C and FIG. 17 , some embodiments of the present disclosure provide a touch layer TL. The first electrode block 110, the second electrode block 210, and the conductive pattern 310 of the touch layer TL form a grid structure. The grid structure includes a plurality of grids, which include at least one (e.g., one, and also each) first grid U1. The first grid U1 is collectively surrounded by the first electrode block 110, the second electrode block 210, and the conductive pattern 310.

[0195] In addition, the above-described display panel DP also includes a plurality of sub-pixels, which are portions of the light-emitting layer DP123b located within the openings P of the pixel defining layer DP121. The first grid U1 directly faces the openings P in the thickness direction of the touch layer TL. That is, the first grid U1 and the openings P have an overlapping area in the thickness direction of the touch layer TL. Continuing to refer to FIG. 1C and FIG. 17In some possible implementations, the plurality of meshes further includes a second mesh U2. The second mesh U2 is surrounded by the first electrode block 110. The second mesh U2 is opposite to the opening P along the thickness direction of the touch control layer TL. That is, the second mesh U2 has an overlapping area with the opening P in the thickness direction of the touch control layer TL.

[0196] With continued reference to FIG. 1C and FIG. 17 In some possible implementations, the plurality of meshes further includes a third mesh U3. The third mesh U3 is surrounded by the second electrode block 210. The third mesh U3 is opposite to the opening P along the thickness direction of the touch control layer TL. That is, the third mesh U3 has an overlapping area with the opening P in the thickness direction of the touch control layer TL.

[0197] With continued reference to FIG. 1C and FIG. 17 In some possible implementations, the plurality of meshes further includes a fourth mesh U4. The fourth mesh U4 is surrounded by the first electrode block 110 and the second electrode block 210. The fourth mesh U4 is opposite to the opening P along the thickness direction of the touch control layer TL. That is, the fourth mesh U4 has an overlapping area with the opening P in the thickness direction of the touch control layer TL.

[0198] With continued reference to FIG. 1C and FIG. 17 In some possible implementations, the plurality of meshes further includes a fifth mesh U5. The fifth mesh U5 is surrounded by the first electrode block 110 and the conductive pattern 310. The fifth mesh U5 is opposite to the opening P along the thickness direction of the touch control layer TL. That is, the fifth mesh U5 has an overlapping area with the opening P in the thickness direction of the touch control layer TL.

[0199] With continued reference to FIG. 1C and FIG. 18A In some possible implementations, the plurality of meshes further includes a sixth mesh U6. The sixth mesh U6 is surrounded by the second electrode block 210 and the conductive pattern 310. The sixth mesh U6 is opposite to the opening P along the thickness direction of the touch control layer TL. That is, the sixth mesh U6 has an overlapping area with the opening P in the thickness direction of the touch control layer TL.

[0200] Some embodiments of the present disclosure provide a method for manufacturing a touch layer TL. The method comprises: forming a first sensing electrode, a second sensing electrode, and a set of conductive patterns. The first sensing electrode and the second sensing electrode are arranged to cross and are insulated from each other. The first sensing electrode comprises a plurality of first electrode blocks electrically connected to each other; the second sensing electrode comprises a plurality of second electrode blocks electrically connected to each other. The first electrode block comprises a first body and a plurality of first fingers protruding from the first body. The second electrode block comprises a plurality of grooves at edges, and the first fingers extend into the grooves. The set of conductive patterns comprises a plurality of conductive patterns distributed along a boundary segment, the boundary segment being a part of a boundary line of the first electrode block and the second electrode block between same-side end points of adjacent two first fingers. The conductive pattern is surrounded by the first electrode block and the second electrode block and is insulated from the first electrode block and the second electrode block.

[0201] FIG. 3 For FIG. 18B A cross-sectional view along A1-A2. FIG. 18A For FIG. 18A~FIG. 18B An exploded view. Referring to FIG. 18A~FIG. 18B , some embodiments of the present disclosure provide a method for manufacturing a touch layer TL. The method comprises forming a fifth conductive pattern layer MT2, an insulating layer MT3, and a sixth conductive pattern layer MT4. The fifth conductive pattern layer MT2 comprises a plurality of connection bridges 400. The sixth conductive pattern layer MT4 comprises the first sensing electrode 100, the second sensing electrode 200, and the set of conductive patterns 300 (not shown in the figure).

[0202] Continuing to refer to FIG. 18A~FIG. 18B , the fifth conductive pattern layer MT2 and the sixth conductive pattern layer MT4 are superposed, i.e., they are distributed in the thickness direction of the touch layer TL. For example, the fifth conductive pattern layer MT2 can be superposed below the sixth conductive pattern layer MT4, specifically, the fifth conductive pattern layer MT2 is formed earlier than the sixth conductive pattern layer MT4. For another example, the fifth conductive pattern layer MT2 can also be superposed above the sixth conductive pattern layer MT4, specifically, in the method for manufacturing the touch layer, the sixth conductive pattern layer MT4 is formed first, and then the fifth conductive pattern layer MT2 is formed.

[0203] Continuing to refer to FIG. 1BThe insulating layer MT3 is provided with openings 500, and the connection bridges 400 are electrically connected to the first electrode blocks 110 at the openings 500. The insulating layer MT3 extends between the sixth conductive pattern layer MT4 and the fifth conductive pattern layer MT2. For example, the orthographic projection of each first electrode block 110, each second electrode block 210, and each conductive pattern group 300 (not shown in the figure) in the sixth conductive pattern layer MT4 on the insulating layer MT3 is within the contour line (i.e., the edge) of the insulating layer MT3; the orthographic projection of the connection bridges 400 of the fifth conductive pattern layer MT2 on the insulating layer MT3 is within the contour line of the insulating layer MT3. For another example, if all the openings 500 on the insulating layer MT3 are ignored, the orthographic projection of the insulating layer MT3 on the display panel DP (shown in FIG. 1B ) covers the display region AA (shown in FIG. 19A ).

[0204] Exemplarily, the material of the insulating layer MT3 can be an inorganic insulating material such as silicon oxide, aluminum oxide, and nitrogen silicon compound (SiNx), and of course, can also be an organic insulating material.

[0205] FIG. 3 For another example, the material of the insulating layer MT3 can be an inorganic insulating material such as silicon oxide, aluminum oxide, and nitrogen silicon compound (SiNx), and of course, can also be an organic insulating material. FIG. 19B Another sectional view along A1-A2. FIG. 19A Another sectional view along A1-A2. FIG. 19A , see FIG. 19B and FIG. 19A The touch layer TL can further include a substrate MT1, which is stacked below the fifth conductive pattern layer MT2 (i.e., the side of the fifth conductive pattern layer MT2 away from the sixth conductive pattern layer MT4). The substrate MT1 can be a rigid substrate or a flexible substrate. The rigid substrate, for example, includes at least one of a glass substrate, a PMMA (Polymethyl methacrylate) substrate, a quartz substrate, and a metal substrate. The flexible substrate, for example, can include at least one of a PET (Polyethylene terephthalate) substrate, a PEN (Polyethylenenaphthalate two formic acid glycol ester) substrate, and a PI (Polyimide) substrate.

[0206] Continuing to refer to FIG. 19B and FIG. 20AThe touch layer TL may also include a protective layer MT5, which is stacked on top of the sixth conductive pattern layer MT4 (i.e., the side of the sixth conductive pattern layer MT4 away from the fifth conductive pattern layer MT2). ​​The material of the protective layer MT5 can be referenced in the description of the insulating layer MT3 above. For example, the protective layer MT5 and the insulating layer MT3 can be made of the same or different materials.

[0207] FIG. 3 for FIG. 20B Another sectional view along the A1-A2 direction. FIG. 20A for FIG. 20A~FIG. 20B Exploded view. See also FIG. 21A This disclosure provides a method for fabricating a touch layer TL using several embodiments. The method includes forming a sixth conductive pattern layer MT4, an insulating layer MT3, and a fifth conductive pattern layer MT2 sequentially from bottom to top. For example, the fifth conductive pattern layer MT2, the insulating layer MT3, and the sixth conductive pattern layer MT4 can be formed sequentially. The remaining structures can be referred to the descriptions in the above embodiments. The effects achieved in this embodiment are consistent with those in the above embodiments, and will not be repeated here.

[0208] FIG. 3 for FIG. 21B Another sectional view along the A1-A2 direction. FIG. 21A for FIG. 21A~FIG. 21B Exploded view. See also FIG. 20A This disclosure provides a method for fabricating a touch layer TL using certain embodiments. This fabrication method can... ​ Based on this, a protective layer MT5 is formed; or a substrate MT1; or a protective layer MT5 and a substrate MT1. For example, in the method for fabricating the touch layer TL, a sixth conductive pattern layer MT4, an insulating layer MT3, a fifth conductive pattern layer MT2, and a protective layer MT5 can be formed sequentially on the substrate MT1. The remaining structures can be referred to the description in the above embodiments. The effects achieved in this embodiment are consistent with those in the above embodiments, and will not be repeated here.

[0209] The material of the protective layer MT5 can be referenced from the description of the insulating layer MT3 above. For example, the materials of the protective layer MT5 and the insulating layer MT3 can be the same or different.

[0210] In embodiments of this disclosure, a "patterned layer" may be a layer structure containing a specific pattern formed by forming at least one film layer using the same film deposition process and then performing a patterning process on the at least one film layer. Depending on the specific pattern, the patterning process may include multiple coating, exposure, development, or etching processes, and the specific pattern in the formed layer structure may be continuous or discontinuous, and these specific patterns may also be at different heights (or thicknesses).

[0211] The conductive pattern layer in the above is a pattern layer with conductive property. The material of each pattern (e.g., the first sensing electrode 100, the second sensing electrode 200, and the conductive pattern group 300) in the pattern layer can be the same.

[0212] Exemplarily, the material of the conductive pattern layer is a conductive material, which can be metal Ti-Al-Ti, for example.

[0213] The above merely provides a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art should think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A touch layer, characterized in that, The touch control layer comprises: a first sensing electrode comprising a plurality of first electrode blocks electrically connected to each other; a second sensing electrode arranged crosswise to the first sensing electrode and insulated from each other, comprising a plurality of second electrode blocks electrically connected to each other; wherein the first electrode block comprises a first body and a plurality of first finger portions protruding from the first body, and the second electrode block has a plurality of grooves at the edge, and the first finger portions extend into the grooves; the touch control layer further comprises: a conductive pattern group comprising a plurality of conductive patterns spaced along a boundary section, the boundary section being a part of a boundary line of the first electrode block and the second electrode block, between the same side root points of two adjacent first finger portions; the conductive pattern is surrounded by the first electrode block and the second electrode block, and is insulated from the first electrode block and the second electrode block; the first electrode block and the second electrode block have a gap between the conductive pattern group.

2. The touch control layer of claim 1, wherein: the conductive pattern is formed by a plurality of conductive lines intersecting with each other; the conductive pattern has one intersection node, or has at least two intersection nodes distributed along the boundary section. 3.The touch layer of claim 1, wherein, In the conductive pattern group, the total length of the conductive pattern is less than or equal to half the length of the boundary section.

4. The touch control layer of claim 1, wherein: the conductive pattern group comprises at least one first conductive pattern, the first conductive pattern being a conductive pattern; the first electrode block has a grid structure, and is provided with at least one first grid point vacancy along the boundary section; wherein the first conductive pattern is arranged at the first grid point vacancy.

5. The touch control layer of claim 4, wherein: the conductive pattern group comprises at least one second conductive pattern, the second conductive pattern being a conductive pattern; the second electrode block has a grid structure, and is provided with at least one second grid point vacancy along the boundary section; wherein the second conductive pattern is arranged at the second grid point vacancy.

6. The touch control layer of claim 5, wherein: in the conductive pattern group, the number of first conductive patterns is equal to the number of second conductive patterns.

7. The touch control layer of claim 5, wherein: the boundary section comprises a first section and a second section opposite along the width direction of the first finger portion and surrounding the first finger portion; the conductive pattern group comprises M1 first conductive patterns distributed along the first section and M2 second conductive patterns distributed along the second section, M1 and M2 are both greater than or equal to 1. 8.The touch layer of claim 7, wherein, M1 and M2 are equal. 9.The touch layer of claim 7, wherein, At least one of the M1 first conductive patterns and at least one of the M2 second conductive patterns are opposite along the width direction of the first finger portion.

10. The touch control layer of claim 7, wherein: the conductive pattern group further comprises M3 second conductive patterns distributed along the first section and M4 first conductive patterns distributed along the second section, M3 and M4 are both greater than or equal to 1.

11. The touch layer according to claim 10, wherein, M3 and M4 are equal.

12. The touch control layer of claim 10, wherein at least one of the M3 second conductive patterns and at least one of the M4 first conductive patterns are opposite along a width direction of the first finger.

13. The touch control layer of claim 5, wherein the boundary section comprises a third section extending around the first finger along a width direction of the first finger, and a fourth section between the two adjacent first fingers; and the set of conductive patterns further comprises N1 first conductive patterns distributed along the third section and N2 second conductive patterns distributed along the fourth section, wherein N1 and N2 are each greater than or equal to 1.

13. The touch control layer of claim 5, wherein the boundary section comprises a third section extending around the first finger along a width direction of the first finger, and a fourth section between the two adjacent first fingers; and the set of conductive patterns further comprises Q1 second conductive patterns distributed along the third section and Q2 first conductive patterns distributed along the fourth section, wherein Q1 and Q2 are each greater than or equal to 1.

14. The touch control layer of claim 13, wherein the N1 and the N2 are equal; and / or the Q1 and the Q2 are equal.

15. The touch control layer of claim 13, wherein in the case that the set of conductive patterns comprises N1 first conductive patterns and N2 second conductive patterns: at least one of the N1 first conductive patterns is distributed at an end of the third section; and at least one of the N2 second conductive patterns is distributed at an end of the fourth section.

15. The touch control layer of claim 13, wherein in the case that the set of conductive patterns comprises Q1 second conductive patterns and Q2 first conductive patterns: at least one of the Q1 second conductive patterns is distributed at an end of the third section; and at least one of the Q2 first conductive patterns is distributed at an end of the fourth section.

17. The touch control layer of claim 1, wherein the first finger comprises a first finger segment and a second finger segment, and the first finger segment is farther away from the first body than the second finger segment; and a width of the first finger segment is smaller than a width of the second finger segment.

18. The touch control layer of claim 17, wherein the set of conductive patterns comprises at least one conductive pattern distributed along a portion of the boundary section around the first finger segment; and / or the set of conductive patterns comprises at least one conductive pattern distributed along a portion of the boundary section around the second finger segment.

19. The touch control layer of any one of claims 1-18, wherein the first finger has a grid structure; and / or a first finger segment of the first finger has a first discontinuity that connects two adjacent grids in a width direction of the first finger; and / or a second finger segment of the first finger has a second discontinuity that connects two adjacent grids in an extension direction of the first finger.

21. The touch control layer of any one of claims 1-18, wherein the first body comprises a plurality of first dummy portions, and the first dummy portions are electrically isolated from the first electrode blocks. ​ ​ ​ ​ 16. The touch layer of claim 13, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 20. The touch layer according to any one of claims 1-18, wherein, ​ ​ ​ ​ ​ ​ ​ The second electrode block is provided with a plurality of second dummy parts, and the second dummy parts and the second electrode block are electrically insulated from each other.

22. A touch display device, comprising: Comprise: a plurality of sub-pixels; a pixel defining layer having a plurality of openings to define positions of the plurality of sub-pixels; and the touch layer of any one of claims 1-21; in the touch layer, the first electrode block, the second electrode block, and the conductive pattern group form a grid structure; the grid structure comprises a plurality of grids; wherein the plurality of grids comprises at least one first grid, the first grid is surrounded by the first electrode block, the second electrode block, and the conductive pattern in the conductive pattern group, and the first grid is opposite to the opening along the thickness direction of the touch layer. Comprise:

23. A method for preparing a touch layer, characterized in that, forming a first sensing electrode and a second sensing electrode, both of which are arranged in cross and insulated from each other; the first sensing electrode comprises a plurality of first electrode blocks electrically connected to each other; the second sensing electrode comprises a plurality of second electrode blocks electrically connected to each other; the first electrode block comprises a first body and a plurality of first finger parts protruding from the first body; the second electrode block comprises a plurality of grooves at the edge, and the first finger part extends into the groove; forming a conductive pattern group, the conductive pattern group comprises a plurality of conductive patterns distributed along the boundary section, the boundary section is the part between the same side root points of two adjacent first finger parts in the boundary line of the first electrode block and the second electrode block; the conductive pattern is surrounded by the first electrode block and the second electrode block, and is insulated from the first electrode block and the second electrode block. ​

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