CN218332545U - Touch layer and touch display device - Google Patents

Abstract

The embodiment of the disclosure provides a touch layer and a touch display device, relates to the technical field of display, and is used for solving the problem that signal changes before and after touch cannot be accurately identified. The touch layer includes: the touch panel 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 includes 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 out of the first body, the second electrode block is provided with a plurality of grooves located at the edge, and the first finger parts extend into the grooves. The conductive pattern group comprises a plurality of conductive patterns which are distributed at intervals along a boundary section, and the boundary section is a part between root end points on the same side of two adjacent first finger parts in a boundary 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 together, and is insulated from the first electrode block and the second electrode block.

Description

Touch layer and touch display device

Technical Field

The present disclosure relates to the field of touch technologies, and in particular, to a touch layer and a touch display device.

Background

The touch structure is of a capacitive type, a resistive type, an infrared type or a surface acoustic wave type. The capacitive touch structure works by utilizing the current induction phenomenon of a human body, supports multi-point touch, and has the advantages of wear resistance, long service life, low power consumption and the like, so that the capacitive touch structure is developed quickly.

The capacitive touch structure is divided into a mutual capacitive touch structure and a self-capacitive touch structure. The mutual capacitive touch structure may include two sets of electrode bars (e.g., including a set of touch scan electrode bars and a set of touch sense electrode bars) arranged in an intersecting manner, and the two sets of electrode bars form a plurality of capacitances near positions where the electrode bars intersect with each other. When a finger touches the screen, the capacitance of some capacitors near the touch point is affected; based on these changes in capacitance, the touch location can be determined.

SUMMERY OF THE UTILITY MODEL

An object of the embodiments of the present disclosure is to provide a touch layer and a touch display device, which are used to solve the problem that signal changes before and after touch cannot be accurately identified in the conventional scheme.

In order to achieve the above purpose, the embodiments of the present disclosure provide the following technical solutions: in one aspect, 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 electrodes are arranged in a crossed manner with the first sensing electrodes, are insulated from each other, and comprise a plurality of second electrode blocks electrically connected with each other. The first electrode block comprises a first body and a plurality of first finger parts protruding out of the first body, the second electrode block is provided with a plurality of grooves located at the edge, and the first finger parts extend into the grooves. The conductive pattern group comprises a plurality of conductive patterns which are distributed at intervals along a boundary section, and the boundary section is a part between root end points on the same side of two adjacent first finger parts in a boundary 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 together, and is insulated from the first electrode block and the second electrode block.

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

Illustratively, the conductive pattern has at least two crossing nodes distributed along the demarcation leg.

In some embodiments, the total length of the conductive patterns in the set of conductive patterns is less than or equal to half the length of the demarcation segment.

In some embodiments, the set of conductive patterns includes at least one first conductive pattern, which is a conductive pattern. The first electrode block is provided with a grid structure, and at least one first grid point vacancy is arranged along the demarcation road section; the first conductive pattern is arranged at a first grid point vacancy position.

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 is provided with a grid structure, and at least one second grid point vacancy is arranged along the demarcation road section; and the second conductive pattern is arranged at the vacancy position of the second grid point.

In some embodiments, the number of the first conductive patterns and the number of the second conductive patterns in the conductive pattern group are equal.

In some embodiments, the demarcation segment includes: first and second segments surrounding the first finger and opposing in a width direction of the first finger. The conductive pattern group comprises M1 first conductive patterns distributed along the first section and M2 second conductive patterns distributed along the second section, wherein both M1 and M2 are more than or equal to 1.

In some embodiments, M1 and M2 are equal.

In some embodiments, at least one of the M1 first conductive patterns is opposite at least one of the M2 second conductive patterns along a width of the first finger.

In some embodiments, the conductive pattern group further includes M3 second conductive patterns distributed along the first segment and M4 first conductive patterns distributed along the second segment, and M3 and M4 are each greater than or equal to 1.

In some embodiments, M3 and M4 are equal.

In some embodiments, at least one of the M3 second conductive patterns is opposite at least one of the M4 first conductive patterns in a width direction of the first finger.

In some embodiments, the interface section includes a third segment that extends around and substantially along the width of the first finger and a fourth segment that is located between two adjacent first fingers. The conductive pattern group further comprises N1 first conductive patterns distributed along the third section and N2 second conductive patterns distributed along the fourth section, wherein both N1 and N2 are larger than or equal to 1.

Illustratively, the interface section includes a third section that surrounds the first fingers and extends generally along the width of the first fingers, and a fourth section that is located between two adjacent first fingers. The conductive pattern group 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 both greater than or equal to 1.

Illustratively, the demarcation segment includes a third segment that extends around and generally along the width of the first finger, and a fourth segment that is located between two adjacent first fingers. The conductive pattern group further comprises N1 first conductive patterns distributed along the third section and N2 second conductive patterns distributed along the fourth section, wherein both N1 and N2 are larger than or equal to 1. The conductive pattern group 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 both greater than or equal to 1.

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

In some embodiments, where 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 section; at least one of the N2 second conductive patterns is distributed at an end of the fourth segment.

In some embodiments, where 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 section; at least one of the Q2 first conductive patterns is distributed at an end of the fourth segment.

In some embodiments, the first finger includes a first knuckle and a second knuckle, and the first knuckle is further from the first body than the second knuckle. The width of the first knuckle is less than the width of the second knuckle.

In some embodiments, the portion of the demarcation segment surrounding the first knuckle is provided with at least one conductive pattern.

In some embodiments, the portion of the demarcation segment surrounding the second knuckle is provided with at least one conductive pattern.

In some embodiments, the portion of the demarcation segment surrounding the first knuckle is provided with at least one conductive pattern; at least one conductive pattern is provided on a portion of the demarcation segment around the second knuckle.

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

Illustratively, the first finger has a grid structure. The areas of two adjacent grids along the extension direction of the first finger are not equal.

Illustratively, the first finger has a grid structure. The areas of two adjacent grids along the width direction of the first finger are not equal. And the areas of two adjacent grids along the extending direction of the first finger part are not equal.

In some embodiments, the first finger has a grid structure. The first finger has a first break which connects two adjacent grids in the width direction of the first finger.

Illustratively, the first finger has a grid structure. The first finger has a second break which connects two adjacent grids in the extending direction of the first finger.

Illustratively, the first finger has a grid structure. The first finger has a first break and a second break. The first fracture connects two adjacent grids in the width direction of the first finger part. The second fracture connects two adjacent grids in the extending direction of the first finger part.

In some embodiments, a plurality of first virtual portions are provided in the first body. The first dummy portion and the first electrode block are electrically insulated from each other.

Illustratively, a plurality of second dummy portions are provided in the second electrode block. The second dummy portion and the second electrode block are electrically insulated from each other.

Illustratively, a plurality of first virtual parts are arranged in the first body. The first dummy portion and the first electrode block are electrically insulated from each other. The second electrode block is provided with a plurality of second dummy portions. The second dummy portion and the second electrode block are electrically insulated from each other.

In the touch layer, the first sensing electrode is provided with the first finger part, the second sensing electrode is provided with the groove, and the first finger part extends into the groove of the second sensing electrode, so that the mutual capacitance Cm between the first sensing electrode and the second sensing electrode can be increased. And the present embodiment adds a conductive pattern group between the first sensing electrode and the second sensing electrode, the conductive pattern group including a plurality of conductive patterns spaced along the dividing road, so that although the mutual capacitance Cm between the first sensing electrode and the second sensing electrode decreases, the ratio Δ Cm/Cm of the signal quantity Δ Cm to the mutual capacitance Cm increases. Therefore, the signal changes before and after touch can be more accurately identified by the embodiment to judge whether touch occurs.

In another aspect, a touch display device is provided, which includes a plurality of sub-pixels, a pixel defining layer and the touch 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 grid structure, the grid structure comprises a plurality of grids, and the grids comprise at least one first grid; the first mesh is collectively surrounded by the first electrode block, the second electrode block, and the conductive pattern. The first grid and the opening are opposite to each other in the thickness direction of the touch layer.

The display device includes a touch layer provided in some embodiments, and thus has the same beneficial effects as the touch layer, and the details are not repeated herein.

In another aspect, a method for manufacturing a touch layer in the foregoing embodiment is provided, including: a first sensing electrode, a second sensing electrode, and a conductive pattern group are formed. The first sensing electrodes and the second sensing electrodes are arranged in a crossed mode and are insulated from each other. The first sensing electrode includes a plurality of first electrode blocks electrically connected to each other; the second sensing electrode includes 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 out of the first body. The second electrode block includes a plurality of grooves at an edge, and the first fingers extend into the grooves. The conductive pattern group comprises a plurality of conductive patterns distributed at intervals along a boundary section, and the boundary section is a part between root end points on the same side of two adjacent first finger parts in a boundary 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 together, and is insulated from the first electrode block and the second electrode block.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure, the drawings required to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art according to these drawings. Furthermore, the drawings in the following description may be regarded as schematic diagrams, and do not limit the actual size of products, the actual flow of methods, the actual timing of signals, and the like, involved in the embodiments of the present disclosure.

Fig. 1A is a side view of a touch display device provided in accordance with some embodiments;

FIG. 1B is a block diagram of the display device of FIG. 1A;

FIG. 1C is a top view of FIG. 1A;

FIG. 2 is an enlarged view of FIG. 1C at D1;

FIG. 3 is an enlarged view of FIG. 2 at D2;

FIG. 4 is a block diagram of the first electrode block of FIG. 2;

FIG. 5 is a block diagram of the second electrode block of FIG. 2;

FIG. 6A is an enlarged view of FIG. 3 at D3;

FIG. 6B is an alternate enlarged view of FIG. 3 at D3;

FIG. 6C is a further alternate enlarged view of FIG. 3 at D3;

FIG. 7 is a table of simulation data for some embodiments;

FIG. 8 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 9 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 10 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 11 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 12 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 13 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 14 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 15 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 16 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 17 is a further alternate enlarged view of FIG. 3 at D3;

FIG. 18A is a cross-sectional view taken along line A1-A2 of FIG. 3;

FIG. 18B is an exploded view of FIG. 18A;

FIG. 19A is another cross-sectional view taken along line A1-A2 of FIG. 3;

FIG. 19B is an exploded view of FIG. 19A;

FIG. 20A is a further sectional view taken along line A1-A2 of FIG. 3;

FIG. 20B is an exploded view of FIG. 20A;

FIG. 21A is a further sectional view taken along line A1-A2 of FIG. 3;

fig. 21B is an exploded view of fig. 21A.

Detailed Description

Technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided by the present disclosure belong to the protection scope of the present disclosure.

Unless the context requires otherwise, throughout the description and the claims, the term "comprise" and its other forms, such as the third person's singular form "comprising" and the present participle form "comprising" are to be interpreted in an open, inclusive sense, i.e. as "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

In the following, the terms "first", "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present disclosure, "a plurality" means two or more unless otherwise specified.

In describing some embodiments, expressions of "coupled" and "connected," along with their derivatives, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other. As another example, some embodiments may be described using the term "coupled" to indicate that two or more elements are in direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents herein.

"at least one of A, B and C" has the same meaning as "at least one of A, B or C" and includes combinations of the following A, B and C: a alone, B alone, C alone, a combination of A and B, A and C in combination, B and C in combination, and A, B and C in combination.

"A and/or B" includes the following three combinations: a alone, B alone, and a combination of A and B.

The use of "adapted to" or "configured to" herein is meant to be an open and inclusive language that does not exclude devices adapted to or configured to perform additional tasks or steps.

As used herein, "about," "approximately," or "approximately" includes the stated values as well as average values that are within an acceptable range of deviation for the particular value, as determined by one of ordinary skill in the art in view of the measurement in question and the error associated with measurement of the particular quantity (i.e., the limitations of the measurement system).

As used herein, "parallel," "perpendicular," and "equal" include the stated case and cases that approximate the stated case to within an acceptable range of deviation as determined by one of ordinary skill in the art in view of the measurement in question and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximately parallel, where an acceptable deviation from approximately parallel may be, for example, within 5 °; "perpendicular" includes absolute perpendicular and approximately perpendicular, where an acceptable deviation from approximately perpendicular may also be, for example, within 5 °. "equal" includes absolute and approximate equality, where the difference between the two, which may be equal within an acceptable deviation of approximately equal, is less than or equal to 5% of either.

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 may also be present.

Example embodiments are described herein with reference to cross-sectional and/or plan views as idealized example figures. In the drawings, the thickness of layers and regions are exaggerated for clarity. 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 shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of exemplary embodiments.

The embodiment of the disclosure provides a touch display device. The touch display device may be a product having a touch function and an image display function. For example, the touch display device may be a display with a touch function, a television, a personal computer, a notebook computer, a billboard, 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 information inquiry apparatus (e.g., business inquiry apparatus in the departments of e-government, bank, hospital, electric power, etc.), an in-vehicle display, and the like.

As another example, the touch display device may also be a touch display panel (also referred to as a touch display screen).

For another example, the touch Display device may include other electronic devices besides the touch Display panel, such as a touch chip, a Display Driver Integrated Circuit (DDIC), a motherboard, and the like. The touch chip is coupled to the touch display panel and configured to determine a touch position (e.g., touch coordinates) based on a touch signal provided by the touch display panel. The main board is coupled with 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 configured to drive the touch display panel to display a corresponding image based on the received image data.

Fig. 1A is a side view of a touch display device provided in accordance with some embodiments. Fig. 1B is a structural diagram of the display device of fig. 1A. Referring to fig. 1A and 1B, a touch display device (e.g., a touch display panel) includes a display panel DP and a touch layer TL. The assembly of the display panel DP and the touch layer TL may also be referred to as a touch display panel.

Referring to fig. 1A, the display panel DP is a screen having a display function, and may be coupled to the DDIC, and configured to receive the data signal transmitted by the DDIC and display a corresponding image. For example, the display panel DP may be an OLED (Organic Light Emitting Diode) display panel, a QLED (Quantum Dot Light Emitting Diode) display panel, a micro LED (including miniLED or micro LED) display panel, or the like.

The display panel DP has a display surface DP1 and a non-display surface DP2 opposed to each other in the thickness direction of the display panel DP. The user can view the picture facing the display surface DP1 of the display panel DP. That is, the side of the display surface DP1 of the display panel DP, which is away from the non-display surface DP2, is a side for the user to view, and this side is hereinafter referred to as the display side of the display panel DP.

With continued reference to fig. 1A, the touch layer TL is configured to provide a touch signal that may reflect a touch position of a user on the display panel DP. The touch layer TL may be coupled to the touch chip to provide a touch signal to the touch chip.

In some possible implementations, the touch layer TL may be located at the display side of the display panel DP. The touch layer TL may be a separate component from the display panel DP; illustratively, the display panel DP and the touch layer TL are both formed separately and then bonded together by an adhesive such as an optical glue. The touch layer TL may 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 by using the display panel DP as a substrate, and in this case, the touch layer TL is in direct contact with the display surface DP1 of the display panel DP, or another functional layer may be disposed between the touch layer TL and the display surface DP1 of the display panel DP.

In other possible implementations, the touch layer may also be located inside the display panel. Illustratively, the display panel includes a first substrate and a second substrate disposed opposite to each other, and the touch layer may be located between the first substrate and the second substrate.

The display panel DP may include a plurality of sub-pixels each including a pixel driving circuit and a light emitting device coupled to each other, the pixel driving circuit being configured to drive the light emitting device to emit light. The pixel driving circuit may include electronic device elements such as a plurality of transistors and capacitors. For example, the pixel driving circuits may each include three transistors and one capacitor, constituting 3T1C (i.e., one driving transistor, two switching transistors, and one capacitor). More than three transistors and at least one capacitor may also be included, 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), 7T2C (i.e., one driving transistor, six switching transistors and two capacitors), or the like. The Transistor may be a Thin Film Transistor (TFT), a field effect Transistor (MOS), or other switching devices with the same characteristics. The light emitting device may be an OLED or a QLED.

To implement the structure of the sub-pixel described above, illustratively, with continued reference to fig. 1B, the display panel DP includes: the substrate DP10, the pixel driving circuit layer DP11, and the light emitting device layer DP12 are sequentially stacked.

The structure of the substrate DP10 may be selectively set according to actual needs.

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

As another example, the substrate DP10 may be a flexible substrate. The flexible substrate may include, for example, a PET (Polyethylene terephthalate) substrate, a PEN (Polyethylene terephthalate) substrate, or a PI (Polyimide) substrate. In this case, the display panel DP may be a flexible display panel.

The substrate DP10 may have a one-layer structure or a multi-layer structure. For example, the substrate may include at least one flexible substrate and at least one buffer layer, the flexible substrate and the buffer layer being alternately stacked.

For example, as shown in fig. 1B, the pixel driving circuit layer DP11 may include: an active pattern layer DP111, a first conductive pattern layer DP112, and a second conductive pattern layer DP113 which are stacked in this order; an insulating layer DP114 may also be included to space these pattern layers. These layers may form a plurality of pixel driving circuits.

In an embodiment of the present disclosure, the "pattern layer" may be a layer structure including a specific pattern formed by forming at least one film layer using the same film forming process and then performing a patterning process on the at least one film layer. Depending on the specific pattern, the patterning process may include a plurality of photoresist coating, exposure, development or etching processes, and the specific pattern in the layer structure may be continuous or discontinuous, and the specific patterns may be at different heights (or thicknesses). The "conductive pattern layer" is a pattern layer having a conductive property, which is made of a conductive material. Illustratively, the "conductive pattern layer" is made of a transparent conductive material. For example, at least one selected from Indium Tin Oxide (ITO), aluminum-doped zinc oxide (AZO), and the like, which is both conductive and has a high light transmittance in the visible range. The "conductive pattern layer" may also be made of a metal material, and for example, may be at least one of aluminum (Al), silver (Ag), copper (Cu), chromium (Cr), and the like.

The first conductive pattern layer DP112 includes a plurality of gate electrodes DP112a, the active pattern layer DP111 includes a plurality of active patterns DP111a, and the second conductive pattern layer DP113 includes a plurality of source electrodes DP113a and a plurality of drain electrodes DP113b. Here, the corresponding one of the active patterns DP111a, one of the gates DP112a, one of the sources DP113a, and one of the drains DP113b may constitute, for example, one transistor, and a plurality of transistors may constitute one pixel driving circuit.

In addition, the pixel driving circuit layer may further include a third conductive pattern layer DP115 between the first conductive pattern layer DP112 and the second conductive pattern layer DP 113. 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 and second capacitor plates DP112b and DP115a are oppositely disposed to form a capacitor in the pixel driving circuit. In other examples, the second capacitor plate DP115a may also be included in the second conductive pattern layer DP 113.

The light emitting device layer DP12 may include a pixel defining layer DP121 and a plurality of light emitting devices DP122. The pixel define layer DP121 has a plurality of openings P, and one opening P defines a position of one light emitting device DP122.

Illustratively, 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.

For example, the first electrode DP122a may have a composite structure in which a transparent conductive oxide thin film/a metal thin film/a transparent conductive oxide thin film are sequentially stacked. The material of the transparent conductive oxide thin film is, for example, any one of ITO and IZO, and the material of the metal thin film is, for example, any one of gold (Au), silver (Ag), nickel (Ni), and platinum (Pt).

For example, the first electrode DP122a may have a single-layer structure, and the single-layer structure may be made of any one of ITO, IZO, au, ag, ni, and Pt.

Exemplarily, with continued reference to fig. 1B, among the plurality of openings P of the pixel defining layer DP121, one opening P exposes at least a portion (a part or all) of one first electrode DP122 a. At least a portion of one of the light emitting layers DP122b is positioned in one of the openings P to be electrically connected to the corresponding first electrode DP122 a.

Here, the light emitting layer DP122b is disposed in a manner related to the process of manufacturing the light emitting layer DP122 b. For example, in the case of forming the light emitting layer DP122b by an evaporation process, a portion of the light emitting layer DP122b may be located in the corresponding opening P, and another portion may overlap the pixel defining layer DP121 around the opening P. Of course, all of the light emitting layers DP122b may be located in the corresponding openings P. In the case where the light emitting layer DP122b is formed by the ink jet printing technique, the light emitting layer DP122b may be entirely located within the corresponding opening P.

Illustratively, with continued reference to fig. 1B, the second electrode DP122c is positioned on a side of the pixel defining layer DP121 remote from the substrate DP 10. The second electrodes DP122c of the respective light emitting devices may be electrically connected to each other in an integrated structure.

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

Of course, the light emitting device layer DP12 may further include at least one of a hole injection layer, a hole transport layer, and an electron blocking layer disposed 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 disposed between the second electrode DP122c and the light emitting layer DP122 b.

In some possible embodiments, with continued reference to fig. 1B, the display panel DP may 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.

With continued reference to fig. 1B, in the case where the display panel further includes the first planarization layer PLN1, the first electrode DP122a of the light emitting device DP122 is disposed on a surface of the first planarization layer PLN1 on a side away from the substrate DP 10. The first electrode DP122a of one light emitting device layer DP12 may be electrically connected to one pixel driving circuit through the first planarization layer PLN 1.

In some possible embodiments, with continued reference to fig. 1B, the display panel DP may further include: and a fourth conductive pattern layer DP116 between the first planarization layer PLN1 and the pixel driving circuit layer DP 11. The fourth conductive pattern layer DP116 may include a plurality of connection portions DP116a.

In the case where the pixel driving circuit layer DP11 further includes the fourth conductive pattern layer DP116, the first electrode DP122a of one light emitting device DP122 may be electrically connected to one pixel driving circuit through one connection portion DP116a.

In some possible embodiments, with continued reference to fig. 1B, the display panel DP may 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 DP 10. The second planar layer PLN2 may be made of an organic insulating material. The passivation layer PVX may be made of an inorganic insulating material.

In some possible embodiments, with continued reference to fig. 1B, the display panel DP further comprises: and an encapsulation layer DP13 disposed on a side of the light emitting device layer DP12 away from the substrate DP 10.

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, which are sequentially stacked.

Illustratively, the first inorganic insulating layer DP131 and the second inorganic insulating layer DP133 may 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 and the like.

With continued reference to fig. 1B, the encapsulation layer DP13 may serve as the display surface of the display panel DP. For example, the touch layer TL may be formed on the encapsulation layer DP13 through a process such as photolithography. As another example, the display device may further include: and the buffer layer DP14 is arranged on one side of the encapsulation layer DP13 far away from the substrate DP 10. The touch layer TL is disposed on the buffer layer DP14 and may be in contact with the buffer layer DP 14.

Referring to fig. 1C, the display panel DP has a display area AA and a non-display area SA, wherein the display area AA is an area on the display panel DP for displaying a picture, and the non-display area SA is an area on the display panel DP except for the display area AA. The non-display area SA may be located at least one side (e.g., one side, such as multiple sides) of the display area AA. For example, the non-display area SA may be disposed around the display area AA.

For example, the display area AA may be rectangular, or may be a rounded rectangle or the like similar to the rectangular shape. Based on this, the display area AA has two sides crossing each other (e.g., perpendicular to each other). For convenience of description, a rectangular coordinate system is established with the extending directions of the two sides as X-axis and Y-axis, respectively.

With continued reference to fig. 1C, the touch layer TL may include: a set of first sensing electrodes 100 (comprising N first sensing electrodes 100, N ≧ 1; e.g., N =1, such as N ≧ 2) and a set of second sensing electrodes 200 (comprising M second sensing electrodes 200, M ≧ 1; e.g., M =1, such as M ≧ 2) are interdigitated and insulated from each other. For example, in the case that the touch layer TL includes a plurality of first sensing electrodes 100, the plurality of first sensing electrodes 100 may be arranged at intervals along the 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 may be arranged at intervals along the second direction Y. Wherein the second direction Y and the first direction X are mutually intersecting, e.g. mutually perpendicular. For example, the second direction Y is a direction indicated by the Y-axis, and the first direction X is a direction indicated by the X-axis. Further, the second direction Y and the first direction X shown in fig. 1C may be interchanged.

For example, the first sensing electrodes 100 serve as touch scan electrode stripes (TX), and the second sensing electrodes 200 serve as touch sense electrode stripes (RX). For another example, the first sensing electrodes 100 are used as touch sensing electrode strips, and the second sensing electrodes 200 are used as touch scanning electrode strips.

The set of first sensing electrodes 100 and the set of second sensing electrodes 200 may both correspond to the display area AA of the display panel DP; that is, the orthographic projections of each first sensing electrode 100 and each second sensing electrode 200 on the display panel DP are at least partially (i.e., partially, or completely) located in the display area AA, so that the touch layer TL can sense the touch operation corresponding to the display area AA.

Herein, "orthographic projection of A on B" refers to projection of A on the plane of B along a direction perpendicular to the plane of B. For example, the orthographic projection of the first sensing electrode 100 on the display panel DP refers to the projection of the first sensing electrode 100 on the display panel DP along the thickness direction of the display panel DP.

In addition, a set of first sensing electrodes 100 may be coupled to the touch chip through a set of first leads TB1', and a set of second sensing electrodes 200 may be coupled to the touch chip through a set of second leads TB 2'. The first lead lines TB1 'and the second lead lines TB2' may be included in the touch layer TL or the display panel DP. The set of first sensing electrodes 100 and the set of second sensing electrodes 200 may be divided into a plurality of capacitive cells T (shown in fig. 2), each of which may include one intersection location (i.e., the intersection location of a first sensing electrode and a second sensing electrode). The shape and structure of each capacitor cell may be substantially the same and may therefore be referred to as a repeating unit. In a capacitive unit, the mutual capacitance value when the first sensing electrode 100 and the second sensing electrode 200 are not touched (for example, when a finger does not touch the touch display device) is denoted as Cm. In a capacitive unit, the difference (also referred to as a capacitance value or a semaphore) between mutual capacitance values before and after touch of the first sensing electrode 100 and the second sensing electrode 200 is recorded as Δ Cm; that is, in one capacitive cell, the mutual capacitance values of the first sensing electrode 100 and the second sensing electrode 200 when touched by a finger are compared to the difference value of Cm.

The touch process of the touch display device can satisfy the following conditions: if Δ Cm/Cm of a capacitor unit is larger, the touch chip (TIC) can accurately identify the signal change before and after touch to judge whether touch occurs. However, in the conventional scheme, the signal quantity Δ Cm is small, and Δ Cm/Cm is also small, so that the signal change before and after touch cannot be accurately identified.

Fig. 2 is an enlarged view of fig. 1C at D1. Fig. 3 is an enlarged view of fig. 2 at D2. Referring to fig. 2, some embodiments of the present disclosure provide a touch layer TL. The first sensing electrode 100 of the touch layer TL includes a plurality of first electrode blocks 110 electrically connected to each other. Illustratively, a plurality of first electrode blocks 110 are arranged along the second direction Y, and the first electrode blocks 110 are arranged in a row to form a first sensing electrode 100. If N first sensing electrodes 100 (shown in fig. 1C) need to be disposed in the touch layer TL, any one of the first sensing electrodes 100 is denoted as 100 (i), and N ≧ i ≧ 1. In the case that N ≧ 2, the N first sensing electrodes 100 may be arranged at intervals along the first direction X. In the first sensing electrode 100, two adjacent first electrode blocks 110 are respectively denoted as an S-th row first electrode block 110 _1and a T-th row first electrode block 110_2, where S is smaller than T by 1. Illustratively, of the plurality of first electrode blocks 110, two adjacent first electrode blocks 110 (e.g., the S-th row first electrode block 110 _1and the T-th row first electrode block 110 _2) are electrically connected by a connection bridge 400.

Illustratively, the material of the first sensing electrode 100 is a transparent conductive material, for example, at least one selected from Indium Tin Oxide (ITO), aluminum-doped zinc oxide (AZO), and the like, which can both conduct electricity and have high light transmittance in the visible light range.

The second sensing electrode 200 is disposed to cross the first sensing electrode 100. Exemplarily, the second sensing electrode 200 extends along the first direction X. If M second sensing electrodes 200 need to be disposed in the touch layer TL, any one of the second sensing electrodes 200 is marked as 200 (j), and M is greater than or equal to j and is greater than or equal to 1. In the case that M ≧ 2, M first sensing electrodes 100 may be arranged at intervals along the second direction Y.

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 respectively denoted as a W-th column second electrode block 210 _1and a V-th column second electrode block 210_2, where W is smaller than V by 1. Illustratively, a plurality of second electrode blocks 210 are arranged in a row to form a second sensing electrode 200. A (e.g. each) second sensing electrode 200 may be a unitary structure. For example, among the plurality of second electrode blocks 210, two adjacent second electrode blocks 210 (for example, a W-th row second electrode block 210 _1and a V-th row second electrode block 210 _2) are connected by the connection part 220 to form an integrated structure. The second sensing electrode 200 is insulated from the first sensing electrode 100. Illustratively, the second sensing electrode 200 passes between two adjacent first electrode blocks 110. An insulation gap is formed between the second sensing electrode 200 and the first electrode block 110, and the two are insulated from each other by the insulation gap.

For example, the material of the second sensing electrode 200 may refer to the description above for the first sensing electrode 100. For example, the second sensing electrode 200 and the first sensing electrode 100 may be made of the same material or different materials.

Fig. 4 is a structural view of the first electrode block of fig. 2. Fig. 5 is a structural view of the second electrode block in fig. 2. Referring to fig. 2 to 5, in some embodiments, at a position close to the crossing position K of the first sensing electrode 100 and the second sensing electrode 200, 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 at an edge.

With continued reference to fig. 2 to 5, for example, a plurality of first finger portions 112 are disposed on the sides of two adjacent first electrode blocks 110 (e.g., the S-th row first electrode block 110 _1and the T-th row first electrode block 110 _2) near the crossing position K (ij) of the first sensing electrode 100 (i) and the second sensing electrode 200 (j). Illustratively, the plurality of first fingers 112 on each side are equally spaced along the sides of the first body 111. In addition, the second electrode block 210 has a plurality of grooves 211 at an edge near the crossing position K of the first and second sensing electrodes 100 and 200. Illustratively, a plurality of grooves 211 are formed on the edges of two adjacent second electrode blocks 210 (for example, the W-th row of second electrode blocks 210 _1and the V-th row of second electrode blocks 210 _2) near the crossing position K (ij). Illustratively, the plurality of recesses 211 are arranged at equal intervals along the sides of the second sensing electrode 200. Illustratively, the second electrode block 210 includes a second body 212 and a second finger 213 protruding from the second body 212. The concave groove 211 is a gap between two adjacent second fingers 213.

Referring to fig. 3, the first finger 112 extends into the recess 211. Illustratively, a plurality of first fingers 112 are disposed on both the first edge ed1 and the second edge ed2 of the S-th row of first electrode blocks 110_1; a plurality of first fingers 112 are disposed on the third edge ed3 and the fourth edge ed4 of the first electrode block 110 _u2 of the T-th row. Wherein the first edge ed1 and the fourth edge ed4 extend in the third direction E and the second edge ed2 and the third edge ed3 extend in the fourth direction F. The fifth edge ed5 and the sixth edge ed6 of the W-th row of second electrode blocks 210 _u1 are both provided with a plurality of grooves 211, and the seventh edge ed7 and the eighth edge ed8 of the V-th row of second electrode blocks 210 _u2 are both provided with a plurality of grooves 211. Wherein 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 first fingers 112 on the first edge ed1 and the grooves 211 on the fifth edge ed5 are disposed in a one-to-one correspondence, and the first fingers 112 of the first edge ed1 extend into the grooves 211 of the fifth edge ed 5. The plurality of first fingers 112 on the second edge ed2 and the plurality of grooves 211 on the eighth edge ed8 are disposed in a one-to-one correspondence, and the first fingers 112 on the second edge ed2 extend into the grooves 211 of the eighth edge ed 8. The first fingers 112 on the third edge ed3 and the grooves 211 on the sixth edge ed6 are disposed in a one-to-one correspondence, and the first fingers 112 of the third edge ed3 extend into the grooves 211 of the sixth edge ed 6. The first fingers 112 on the fourth edge ed4 are disposed in a one-to-one correspondence with the grooves 211 on the seventh edge ed7, and the first fingers 112 of the fourth edge ed4 extend into the grooves 211 of the seventh edge ed 7.

Referring to fig. 2 to 3, in the present embodiment, the first finger 112 is disposed on the first sensing electrode 100 in the capacitor unit T, the second sensing electrode 200 is disposed with the groove 211, and 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 can be increased, and since the mutual capacitance Cm is positively correlated with the signal quantity Δ Cm, the signal quantity Δ Cm is increased. But the signal quantity Δ Cm increases to a greater extent than the mutual capacitance Cm. Therefore, the signal change before and after touch can be more accurately identified, and whether touch occurs or not can be judged.

Referring to fig. 4, some embodiments of the present disclosure provide a touch layer TL. The first body 111 of the touch layer TL has a plurality of first dummy portions 111a. The first virtual part 111a has a mesh structure. Illustratively, the first dummy parts 111a cross each other by a plurality of conductive lines to form a mesh structure. The plurality of first dummy parts 111a are uniformly distributed in the first body 111. For example, the first dummy portions 111a are distributed at equal intervals in the first body 111 along the length and width directions thereof. The first dummy portion 111a and the first electrode block 110 are electrically insulated from each other. The first dummy portion 111a and the first electrode block 110 have a gap therebetween, and are electrically insulated from each other by the gap. Thus, the area of the first body 111 can be reduced, thereby reducing the self-capacitance and the charging time of the first body 111 and the cathode, and finally improving the scanning frequency and the reporting rate.

Illustratively, the first virtual part 111a has a side length of 1000 μm or less. The occurrence of touch failure on the first virtual portion 111a due to the full touch of the fingers of the user is avoided.

Referring to fig. 5, in other possible embodiments, a plurality of second dummy portions 215 are provided in the second electrode block 210. The second virtual part 215 has a mesh structure. Illustratively, the second dummy parts 215 cross each other by a plurality of conductive lines to form a mesh structure. The plurality of second dummy parts 215 are uniformly distributed in the second electrode block 210. For example, the second dummy parts 215 are distributed at equal intervals in the second electrode block 210 in the length and width directions thereof. The second dummy portion 215 and the second electrode block 210 are electrically insulated from each other. The second dummy portion 215 and the second electrode block 210 have a gap therebetween, and are electrically insulated from each other by the gap. The effects achieved by this embodiment are the same as those of the above embodiments, and are not described herein again.

Illustratively, the side length of the second virtual part 215 is 1000 micrometers or less. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Referring to fig. 4 to 5, in some possible embodiments, a plurality of first dummy portions 111a are provided in the first body 111. The first virtual part 111a has a mesh structure. Illustratively, the first dummy parts 111a cross each other by a plurality of conductive lines to form a mesh structure. The plurality of first dummy portions 111a are uniformly distributed in the first body 111. For example, the first dummy portions 111a are distributed at equal intervals in the first body 111 in the length and width directions thereof. The first dummy portion 111a and the first electrode block 110 are electrically insulated from each other. The first dummy portion 111a and the first electrode block 110 have a gap therebetween, and are electrically insulated from each other by the gap.

The second electrode block 210 has a plurality of second dummy portions 215. The second virtual part 215 has a mesh structure. Illustratively, the second dummy parts 215 cross each other by a plurality of conductive lines to form a mesh 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 distributed at equal intervals in the second electrode block 210 in the length and width directions thereof. The second dummy portion 215 and the second electrode block 210 are electrically insulated from each other. The second dummy portion 215 and the second electrode block 210 have a gap therebetween, and are electrically insulated from each other by the gap. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Illustratively, each of the first and second virtual parts 111a and 215 has a side length of 1000 μm or less. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Fig. 6A is an enlarged view of fig. 3 at D3. Fig. 6B is an alternative enlarged view of fig. 3 at D3. Fig. 6C is yet another alternative enlarged view of fig. 3 at D3. Referring to fig. 6A to 6C, in other embodiments, the touch layer TL further includes a conductive pattern group 300. The conductive pattern group 300 includes a plurality of conductive patterns 310 spaced apart along the boundary section L. The dividing line L is a portion between the same-side root end points of two adjacent first finger portions 112 in the boundary between the first electrode block 110 and the second electrode block 210. Two adjacent first fingers 112 are respectively labeled as an upper first finger 112a and a lower first finger 112b. The heel points of the first finger 112a are designated as first heel point a1 and second heel point a2. The heel end points of the next first finger 112b are labeled as a next first heel point b1 and a next second heel point b2. For example, the boundary section L is a portion between the first side root end points of two adjacent first finger portions 112 in the boundary between the first electrode block 110 and the second electrode block 210. Thus, the starting point of the boundary section L is the upper first heel point a1 of the upper first finger portion 112a, and the ending point is the lower first heel point B1 of the lower first finger portion 112B (see fig. 6B). The demarcation line segment L is a portion surrounding the edge of the first body 111 and a portion surrounding the first finger 112 in order from the start point to the end point. For another example, the boundary section L is a portion between the second side end points of two adjacent first finger portions 112 in the boundary between the first electrode block 110 and the second electrode block 210. Thus, the dividing line L starts at the upper second heel point a2 of the upper first finger portion 112a and ends at the lower second heel point b2 of the lower first finger portion 112b (see fig. 6C). The dividing section L is, in order from the starting point to the end point, surrounded by a portion of the first finger 112 and a portion of the edge of the first body 111.

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

In addition, the conductive pattern 310 is insulated from both the first electrode block 110 and the second electrode block 210. Illustratively, the first electrode block 110 and the second electrode block 210 each have a gap with the conductive pattern group 300, and the conductive pattern 310 is insulated from the first electrode block 110 by the gap therebetween. Also, the conductive pattern 310 is insulated from the second electrode block 210 by a gap therebetween.

For example, the material of the conductive pattern group 300 may refer to the description above for the first sensing electrode 100 or the second sensing electrode 200. For example, the conductive pattern group 300 and the second sensing electrode 200 or the first sensing electrode 100 may be made of the same material or different materials.

The present embodiment is provided with a conductive pattern group 300 between the first sensing electrode 100 and the second sensing electrode 200. Simulation data of the mutual capacitance Cm, the semaphore Δ Cm, and Cm/Δ Cm are obtained by performing simulation under the same electrode pattern, and specific results are shown in fig. 7 (fig. 7 is a simulation data table of some embodiments).

As can be seen, in the case of adding the conductive pattern group 300, the mutual capacitance Cm after adding the conductive pattern group 300 is reduced as compared with the case of not adding the conductive pattern group 300; the signal quantity delta Cm is increased and also reduced; Δ Cm/Cm increases. Although the signal quantity Δ Cm increases and decreases, if both Δ Cm/Cm increase, the signal quantity Δ Cm changes (increases or decreases) to a greater extent than the mutual capacitance Cm. The present embodiment can be more accurate.

With continued reference to fig. 6A, some embodiments of the present disclosure provide a touch layer TL. The conductive pattern 310 of the touch layer TL is formed by crossing a plurality of conductive lines. The conductive pattern 310 has one crossing node 313. Illustratively, the conductive pattern 310 is formed by two conductive lines crossing each other.

Fig. 8 is a further alternate enlarged view of fig. 3 at D3. Fig. 9 is yet another alternative enlarged view of fig. 3 at D3. Referring to fig. 8-9, in some possible embodiments, the conductive pattern 310 has at least two intersection nodes 313 distributed along the demarcation leg L. Illustratively, the conductive pattern 310 is formed by one conductive line arranged along the boundary section L crossing at least two conductive lines crossing the boundary section L. For example, the conductive pattern 310 shown in fig. 8 is formed by one conductive line arranged along the boundary section L crossing two conductive lines crossing the boundary section L. As another example, the conductive pattern 310 shown in fig. 9 is formed by intersecting one conductive line arranged along the boundary section L and four conductive lines intersecting the boundary section L. In addition, the conductive patterns 310 include at least two sub-conductive patterns, which can be disconnected from each other, for example, the sub-conductive patterns have a crossing node 313. These sub-conductive patterns may also be connected together, for example, the sub-conductive patterns may have a plurality of crossing nodes 313.

Fig. 10 is yet another alternative enlarged view of fig. 3 at D3. Fig. 11 is yet another alternative enlarged view of fig. 3 at D3. Fig. 12 is yet another alternative enlarged view of fig. 3 at D3. With continued reference to fig. 10-12, some embodiments of the present disclosure provide a touch layer TL. In the conductive pattern group 300 of the touch layer TL, the total length of the conductive patterns is less than or equal to half of the length of the boundary road segment L. Referring to fig. 7, the conductive pattern group 300 of the first aspect (see fig. 10) has 4 conductive patterns 310; the conductive pattern group 300 of the fourth aspect (see fig. 11) has 8 conductive patterns 310; the conductive pattern group 300 of scheme six (see fig. 12) has 15 conductive patterns 310. As can be seen from the simulation data shown in fig. 7, as the number of the conductive patterns 310 increases, the effect of recognizing the signal change before and after the touch is better.

With continued reference to fig. 12, in some possible embodiments, the conductive pattern set 300 includes at least one (e.g., one or more) first conductive patterns 311. The first conductive pattern 311 is a conductive pattern.

The first electrode block 110 has a mesh structure. Illustratively, the first electrode block 110 is formed in a mesh structure by crossing a plurality of conductive lines with each other. The first electrode block 110 is provided with at least one first grid point vacancy 113 along the dividing section L. The first grid point gap 113 allows the grid structure of the first electrode block 110 to form a concave gap at the edge. The first conductive pattern 311 is disposed at the first grid point vacancy 113. Illustratively, the first grid point vacancies 113 are equal in number to the first conductive patterns 311 and are arranged in a one-to-one correspondence. The first conductive patterns 311 of the present embodiment are disposed in the vacant sites 113 of the first grid points, so that the mutual capacitance value Cm can be reduced, the tolerance value Δ Cm can be increased, and further Δ Cm/Cm is increased, thereby more accurately identifying whether touch is performed.

With continued reference to fig. 12, in yet other possible embodiments, the set of conductive patterns 300 includes at least one (e.g., one or more) second conductive patterns 312. The second conductive pattern 312 is a conductive pattern.

The second electrode block 210 has a mesh structure. Illustratively, the second electrode blocks 210 are crossed with each other by a plurality of conductive lines to form a mesh structure. The second electrode block 210 is provided with at least one second grid point vacancy 214 along the dividing section L. Illustratively, the second grid point gap 214 causes the grid structure of the second electrode block 210 to form a concave gap at the edge. Wherein the second conductive pattern 312 is disposed at the second grid point vacancy 214. Illustratively, the second grid point vacancies 214 are equal in number to the second conductive patterns 312 and are arranged in a one-to-one correspondence. In the present embodiment, the second conductive patterns 312 are disposed in the second grid point empty bits 214, and the mutual capacitance value Cm can be reduced and the tolerance value Δ Cm can be increased, so that Δ Cm/Cm is also increased, and whether touch is performed or not can be identified more accurately.

Fig. 13 is yet another alternative enlarged view of fig. 3 at D3. See fig. 13. Illustratively, 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. Thus, before and after the conductive pattern group 300 is added, the variation of the area of the first sensing electrode 100 (not shown in the figure) is equal to the variation of the area of the second sensing electrode 200 (not shown in the figure), so that the mutual capacitance value Cm is reduced, and the tolerance value Δ Cm is ensured to be basically unchanged, and then Δ Cm/Cm is increased, thereby more accurately identifying whether to touch.

Fig. 14 is a further alternative enlarged view of fig. 3 at D3. Referring to fig. 14, in some possible embodiments, the interface section L includes a first segment L1 and a second segment L2 surrounding the first finger 112 and opposing along the width direction B of the first finger 112. For example, the first section L1 is a portion of the boundary section L connected to a portion surrounding the first body 111, and the second section L2 is a portion of the boundary section L distant from the portion surrounding the first body 111. For another example, the second section L2 is a portion of the boundary section L connected to a portion surrounding the first body 111, and the first section L1 is a portion of the boundary section L far from the portion surrounding the first body 111.

The conductive pattern group 300 includes M1 first conductive patterns 311 distributed along the first segment L1. And M2 second conductive patterns 312 distributed along the second segment L2. For example, the M1 first conductive patterns 311 are equally spaced along the first segment L1. The M2 second conductive patterns 312 are equally spaced along the second segment L2. Wherein both M1 and M2 are greater than or equal to 1.

Illustratively, M1 and M2 are equal. Thus, before and after the conductive pattern group 300 is added, the area variation of the first sensing electrode 100 (not shown in the figure) is equal to the area variation of the second sensing electrode 200 (not shown in the figure), so that the capacitance values of the second sensing electrode 200, the first sensing electrode 100 and the cathode are kept consistent, which is beneficial to debugging of TIC.

Specifically, at least one (e.g., one or more) of the M1 second conductive patterns 312 is opposite 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, M1 first conductive patterns 311 and M2 second conductive patterns 312 are disposed in a one-to-one correspondence along the width direction B of the first finger 112.

With continued reference to fig. 14, in other possible embodiments, the conductive pattern group 300 includes M3 second conductive patterns 312 distributed along the first segment L1 and M4 first conductive patterns 311 distributed along the second segment L2. For example, M3 second conductive patterns 312 are equally spaced along the first segment L1. The M4 first conductive patterns 311 are equally spaced along the second segment L2. Wherein, M3 and M4 are both more than or equal to 1.

Illustratively, M3 and M4 are equal. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Specifically, 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 in the width direction B of the first finger 112. For example, M3 second conductive patterns 312 and M4 first conductive patterns 311 are disposed in one-to-one correspondence along the width direction B of the first finger 112.

With continued reference to fig. 14, in still other possible embodiments, the conductive pattern group 300 further includes M1 first conductive patterns 311 and M3 second conductive patterns 312 distributed along the first segment L1. For example, M1 first conductive patterns 311 and M3 second conductive patterns 312 are spaced along the first segment L1. As another example, M1 first conductive patterns 311 and M3 second conductive patterns 312 are sequentially distributed along the first segment L1. And M3 second conductive patterns 312 and M4 first conductive patterns 311 distributed along the second segment L2. For example, M3 second conductive patterns 312 and M4 first conductive patterns 311 are spaced apart along the second segment L2. As another example, the M3 second conductive patterns 312 and the M4 first conductive patterns 311 are sequentially distributed along the second segment L2. Wherein, M1, M2, M3 and M4 are all more than or equal to 1.

Illustratively, M1 and M1 are equal; m3 and M4 are equal. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Specifically, at least one (e.g., one or more) of the M1 second conductive patterns 312 is opposite 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, M1 first conductive patterns 311 and M2 second conductive patterns 312 are disposed in a one-to-one correspondence 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 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, M3 second conductive patterns 312 and M4 first conductive patterns 311 are disposed in a one-to-one correspondence along the width direction B of the first finger 112.

Fig. 15 is yet another alternative enlarged view of fig. 3 at D3. Referring to fig. 15, in some possible embodiments, the demarcation length L includes a third segment L3 that extends around the first finger 112 and generally along the width direction B of the first finger 112. Illustratively, the third section L3 is located in a portion of the demarcation segment L between the first section L1 and the second section L2. And a fourth segment L4 located between two adjacent first fingers 112. For example, the fourth stretch L4 is a portion of the boundary link L that is connected to the start of the first stretch L1.

The conductive pattern group 300 further includes N1 first conductive patterns 311 distributed along the third segment L3 and N2 second conductive patterns 312 distributed along the fourth segment L4. For example, the N1 first conductive patterns 311 are equally spaced along the third segment L3. The N2 second conductive patterns 312 are equally spaced along the fourth segment L4. Wherein both N1 and N2 are greater than or equal to 1.

Illustratively, N1 and N2 are equal. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

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

Illustratively, Q1 and Q2 are equal. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

With continued reference to fig. 15, in still other possible embodiments, the conductive pattern group 300 further includes N1 first conductive patterns 311 and Q1 second conductive patterns 312 distributed along the third segment L3. For example, N1 first conductive patterns 311 and Q1 second conductive patterns 312 are spaced along the third segment L3. For another example, the N1 first conductive patterns 311 and the Q1 second conductive patterns 312 are sequentially arranged along the third segment L3. And N2 second conductive patterns 312 and Q2 first conductive patterns 311 distributed along the fourth segment L4. For example, N2 second conductive patterns 312 and Q2 first conductive patterns 311 are spaced along the fourth segment L4. For another example, N2 second conductive patterns 312 and Q2 first conductive patterns 311 are sequentially arranged along the fourth segment L4.

Wherein N1, N2, Q1 and Q2 are all more than or equal to 1. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Fig. 16 is yet another alternative enlarged view of fig. 3 at D3. Referring to fig. 16, some embodiments of the present disclosure provide a touch layer TL. The touch layer TL is in a case where the conductive pattern group 300 includes 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 patterns 311 are 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, and the first conductive pattern 311 is not distributed at the end point. For another example, the first conductive pattern 311 is distributed at the end point of the third segment L3, and the first conductive pattern 311 is not distributed at the start point.

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 start point and the end point of the fourth segment L4 are distributed with the second conductive patterns 312. As another example, the start point of the fourth segment L4 is distributed with the second conductive patterns 312, and the end point is not distributed with the second conductive patterns 312. As another example, the end point of the fourth segment L4 has the second conductive pattern 312 distributed thereon, and the start point has no second conductive pattern 312 distributed thereon. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Fig. 17 is yet another alternative enlarged view of fig. 3 at D3. Referring to fig. 17, some embodiments of the present disclosure provide a touch layer TL. The touch layer TL is in a case where the conductive pattern group 300 includes Q1 second conductive patterns and Q2 first conductive patterns.

At least one (e.g., one or more) of the Q1 second conductive patterns 312 are distributed at the end of the third segment L3. For example, the second conductive patterns 312 are distributed at both the start point and the end point of the third segment L3. For another example, the second conductive pattern 312 is distributed at the start point of the third segment L3, and the second conductive pattern 312 is not distributed at the end point. For another example, the end point of the third segment L3 has the second conductive pattern 312 distributed thereon, and the starting point has no second conductive pattern 312 distributed thereon. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

At least one (e.g., one or more) of the Q2 first conductive patterns 311 is distributed at an end of the fourth segment L4. For example, the start point and the end point of the fourth segment L4 are distributed with the first conductive patterns 311. For example, the start point and the end point of the fourth segment L4 are distributed with the first conductive patterns 311. For another example, the first conductive patterns 311 are distributed at the start point of the fourth segment L4, and the first conductive patterns 311 are not distributed at the end point. For another example, the first conductive pattern 311 is distributed at the end point of the fourth segment L4, and the first conductive pattern 311 is not distributed at the start point. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Referring to fig. 17, some embodiments of the present disclosure provide a touch layer TL. The first finger 112 of the touch layer TL includes a first finger ZJ1 and a second finger ZJ2. The first knuckle ZJ1 is farther 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 in the width direction B of the first finger 112. The width of the second knuckle ZJ2 is the dimension of the second knuckle ZJ2 in the width direction B of the first finger 112. The width of the first knuckle ZJ1 is smaller than the width of the second knuckle ZJ2. Such that the first finger 112 includes two patterns of unequal areas so that recognition by the human eye will recognize the first finger 112 as two patterns, thereby reducing visibility of the first finger 112.

In some possible embodiments, at least one (for example one, as well as a plurality of) conductive patterns 310 are provided in the part of the demarcation line section L surrounding the first knuckle ZJ 1.

In further possible embodiments, at least one (for example one, as well as a plurality of) electrically conductive patterns 310 are provided in the part of the dividing section L surrounding the second knuckle ZJ2.

In further possible embodiments, at least one (for example one, as well as a plurality of) conductive patterns 310 are provided in the part of the demarcation line section L surrounding the first knuckle ZJ 1. And, the part of the demarcation section L surrounding the second knuckle ZJ2 is provided with at least one (e.g., one, as well as a plurality of) conductive patterns 310. 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. Illustratively, the first fingers 112 are interconnected by a plurality of conductive wires to form a grid structure.

In some possible embodiments, the areas of adjacent two grids 112c are not equal along the width direction B of the first finger 112. Since the conductive wire forming the grid structure of the first finger 112 is metal, it blocks light. Therefore, the conductive wires are arranged around the RGB pixels when being wired. And the size of the RGB pixel is different, so the embodiment can avoid the RGB pixels with different areas, thereby reducing the visibility.

In other possible embodiments, the areas of two adjacent meshes 112C are not equal along the extension direction C of the first finger 112. Wherein the extending direction C and the width direction B intersect with each other. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

In yet other possible embodiments, the areas of adjacent two webs 112c are not equal along the width direction B of the first finger 112; and, along the extending direction C of the first finger 112, the areas of two adjacent grids 112C are not equal. Wherein the extending direction C and the width direction B intersect with each other. The effect obtained by this embodiment is the same as that of the above S embodiment, and is not described herein again.

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. Illustratively, the first fingers 112 are interconnected by a plurality of conductive wires to form a grid structure.

In some possible embodiments, the first finger 112 has a first discontinuity 112d, and the first discontinuity 112d connects two grids 112c adjacent to each other in the width direction B of the first finger 112. This may divide the first finger 112 into a plurality of patterns, thereby reducing visibility of the first finger 112.

In other possible embodiments, the first finger 112 has a second interruption 112e, the second interruption 112e connecting two adjacent meshes 112C in the extension direction C of the first finger 112. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

In some other possible embodiments, the first finger 112 has a first break 112d, and the first break 112d connects two grids 112c adjacent to each other in the width direction B of the first finger 112. The first finger 112 also has a second interruption 112e, the second interruption 112e connecting two adjacent meshes 112C in the extension direction C of the first finger 112. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

In still other possible embodiments, the first body 111 has a mesh structure. The first body 111 has a third fracture. The third fracture connects two adjacent grids in the third direction E of the first body 111. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

In still other possible embodiments, the first body 111 has a mesh structure. The first body 111 has a fourth fracture. The fourth fracture connects two adjacent grids in the fourth direction F of the first body 111. The effects achieved by this embodiment are the same as those of the above embodiments, and are not described herein again.

In still other possible embodiments, the second electrode 210 has a mesh structure. The second electrode 210 has a fifth discontinuity. The fifth discontinuity connects two adjacent grids in the third direction E of the second electrode 210. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

In still other possible embodiments, the second electrode 210 has a mesh structure. The second electrode 210 has a sixth discontinuity. The sixth discontinuity connects two adjacent grids in the fourth direction F of the second electrode 210. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

Referring to fig. 17 and 1C, 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 mesh structure. The grid structure comprises a plurality of grids comprising at least one (e.g. one, as well as each) first grid U1. The first mesh U1 is surrounded by the first electrode block 110, the second electrode block 210, and the conductive pattern 310.

In addition, the display panel DP further includes a plurality of sub-pixels, and the sub-pixels are portions of the light emitting layer DP123b located in the opening P of the pixel defining layer DP 121. The first grid U1 is opposite to the opening P along the thickness direction of the touch layer TL. That is, the first mesh U1 and the opening P have an overlapping area in the thickness direction of the touch layer TL. With continued reference to fig. 17 and 1C, in some possible embodiments, the plurality of meshes further includes a second mesh U2. The second mesh U2 is surrounded by the first electrode block 110. The second grid U2 is opposite to the opening P along the thickness direction of the touch layer TL. That is, the second mesh U2 and the opening P have an overlapping area in the thickness direction of the touch layer TL.

With continued reference to fig. 17 and 1C, in some possible embodiments, 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 layer TL. That is, the third mesh U3 and the opening P have an overlapping area in the thickness direction of the touch layer TL.

With continued reference to fig. 17 and 1C, in some possible embodiments, 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 together. The fourth grid U4 is opposite to the opening P along the thickness direction of the touch layer TL. That is, the fourth mesh U4 and the opening P have an overlapping area in the thickness direction of the touch layer TL.

With continued reference to fig. 17 and 1C, in some possible embodiments, the plurality of grids further includes a fifth grid 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 layer TL. That is, the fifth mesh U5 and the opening P have an overlapping area in the thickness direction of the touch layer TL.

With continued reference to fig. 17 and 1C, in some possible embodiments, 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 layer TL. That is, the sixth mesh U6 and the opening P have an overlapping area in the thickness direction of the touch layer TL.

Some embodiments of the present disclosure provide a method of manufacturing a touch layer TL. The preparation method comprises the following steps: a first sensing electrode, a second sensing electrode and a conductive pattern group are formed. The first sensing electrodes and the second sensing electrodes are arranged in a crossed mode and are insulated from each other. The first sensing electrode includes a plurality of first electrode blocks electrically connected to each other; the second sensing electrode includes 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 out of the first body. The second electrode block includes a plurality of grooves at an edge, and the first fingers extend into the grooves. The conductive pattern group comprises a plurality of conductive patterns distributed at intervals along a boundary section, and the boundary section is a part between root end points on the same side of two adjacent first finger parts in a boundary 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 together, and is insulated from the first electrode block and the second electrode block.

Fig. 18A is a cross-sectional view taken along A1-A2 in fig. 3. Fig. 18B is an exploded view of fig. 18A. Referring to fig. 18A-18B, some embodiments of the present disclosure provide a method of manufacturing a touch layer TL. The preparation method includes forming a fifth conductive pattern layer MT2, an insulating layer MT3, and a sixth conductive pattern layer MT4. The fifth conductive pattern layer MT2 includes a plurality of connection bridges 400. The sixth conductive pattern layer MT4 includes the first sensing electrode 100, the second sensing electrode 200, and the conductive pattern group 300 (not shown).

With continued reference to fig. 18A-18B, the fifth conductive pattern layer MT2 and the sixth conductive pattern layer MT4 are stacked, i.e., distributed in the thickness direction of the touch layer TL. For example, the fifth conductive pattern layer MT2 may be stacked below the sixth conductive pattern layer MT4, and in particular, 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 may be stacked 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.

With continued reference to fig. 18A-18B, the insulating layer MT3 is provided with an opening 500, and the connecting bridge 400 is electrically connected to the first electrode block 110 at the opening 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., edge) of the insulating layer MT 3; an orthogonal projection of the connecting bridge 400 of the fifth conductive pattern layer MT2 on the insulating layer MT3 is within the outline of the insulating layer MT 3. For another example, if all the openings 500 on the insulating layer MT3 are omitted, the orthographic projection of the insulating layer MT3 on the display panel DP (shown in fig. 1B) covers the display area AA (shown in fig. 1B).

The insulating layer MT3 may be an inorganic insulating material such as silicon oxide, aluminum oxide, and silicon nitride (SiNx), or may be an organic insulating material.

Fig. 19A is another cross-sectional view taken along line A1-A2 of fig. 3. Fig. 19B is an exploded view of fig. 19A. Referring to fig. 19A and 19B, the touch layer TL may further include a substrate MT1, and the substrate MT1 is stacked below the fifth conductive pattern layer MT2 (i.e., a side of the fifth conductive pattern layer MT2 away from the sixth conductive pattern layer MT 4). The substrate MT1 may be a rigid substrate or a flexible substrate. Wherein the rigid substrate comprises, for example: at least one of a glass substrate, a PMMA (Polymethyl methacrylate) substrate, a quartz substrate, and a metal substrate, etc. The flexible substrate may include, for example: at least one of a PET (Polyethylene terephthalate) substrate, a PEN (Polyethylene naphthalate) substrate, and a PI (Polyimide) substrate.

With continued reference to fig. 19A and 19B, the touch layer TL may further include a protection layer MT5, and the protection layer MT5 is stacked above the sixth conductive pattern layer MT4 (i.e., on a side of the sixth conductive pattern layer MT4 away from the fifth conductive pattern layer MT 2). The material of the protection layer MT5 can be referred to the above description of the insulation layer MT 3. For example, the protective layer MT5 and the insulating layer MT3 may be made of the same material or different materials.

Fig. 20A is a further sectional view taken along line A1-A2 of fig. 3. Fig. 20B is an exploded view of fig. 20A. Referring to fig. 20A to 20B, some embodiments of the present disclosure provide a method of manufacturing a touch layer TL. The preparation method comprises a sixth conductive pattern layer MT4, an insulating layer MT3 and a fifth conductive pattern layer MT2 which are sequentially formed from bottom to top. For example, the fifth conductive pattern layer MT2, the insulating layer MT3, and the sixth conductive pattern layer MT4 may be sequentially formed. The remaining structure may refer to the description in the above embodiments. The effects achieved by this embodiment are the same as those of the above embodiments, and are not described herein again.

FIG. 21A is a further cross-sectional view taken along line A1-A2 of FIG. 3. Fig. 21B is an exploded view of fig. 21A. Referring to fig. 21A to 21B, some embodiments of the present disclosure provide a method of manufacturing a touch layer TL. The manufacturing method can form a protective layer MT5 on the basis of fig. 20A; or a substrate MT1; or the protective layer MT5 and the substrate MT1. For example, in the method for manufacturing the touch layer TL, the sixth conductive pattern layer MT4, the insulating layer MT3, the fifth conductive pattern layer MT2 and the protection layer MT5 may be sequentially formed on the substrate MT1 in this order. The remaining structure may refer to the description in the above embodiments. The effect achieved by the present embodiment is the same as that achieved by the above embodiments, and is not described herein again.

The material of the protection layer MT5 can be as described above with reference to the insulating layer MT 3. For example, the protective layer MT5 and the insulating layer MT3 may be made of the same material or different materials.

In an embodiment of the present disclosure, the "pattern layer" may be a layer structure including a specific pattern formed by forming at least one film layer using the same film forming process and then performing a patterning process on the at least one film layer. Depending on the specific pattern, the patterning process may include a plurality of photoresist coating, exposure, development or etching processes, and the specific pattern in the layer structure may be continuous or discontinuous, and the specific patterns may be at different heights (or thicknesses).

The conductive pattern layer is a pattern layer with conductive properties. 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 may be the same.

Illustratively, the material of the conductive pattern layer is a conductive material, and may be, for example, metal Ti-Al-Ti.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art will appreciate that changes or substitutions within the technical scope of the present disclosure are included in the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (22)

1. A touch layer, comprising:

a first sensing electrode including a plurality of first electrode blocks electrically connected to each other;

the second sensing electrode is arranged in a crossed manner with the first sensing electrode, is insulated from the first sensing electrode and comprises a plurality of second electrode blocks electrically connected with each other;

the first electrode block comprises a first body and a plurality of first finger parts protruding out of the first body, the second electrode block is provided with a plurality of grooves located at the edge, and the first finger parts extend into the grooves;

the touch layer further includes:

the conductive pattern group comprises a plurality of conductive patterns which are distributed at intervals along a boundary section, and the boundary section is a part between root end points on the same side of two adjacent first finger parts in a boundary 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 together, and is insulated from the first electrode block and the second electrode block.

2. The touch layer of claim 1,

the conductive pattern is formed by mutually crossing a plurality of conductive wires; the conductive pattern has one crossing node or at least two crossing nodes distributed along the demarcation segment.

3. The touch layer of claim 1, wherein the set of conductive patterns has a total length of the conductive patterns less than or equal to half of a length of the dividing segment.

4. The touch layer of claim 1,

the conductive pattern group comprises at least one first conductive pattern, and the first conductive pattern is a conductive pattern;

the first electrode block is provided with a grid structure, and at least one first grid point vacancy position is arranged along the demarcation road section; wherein the first conductive pattern is disposed at the first grid point vacancy.

5. The touch layer of claim 4,

the conductive pattern group comprises at least one second conductive pattern, and the second conductive pattern is a conductive pattern;

the second electrode block is provided with a grid structure, and at least one second grid point vacancy is arranged along the demarcation road section; wherein the second conductive pattern is disposed at the second grid point vacancy.

6. The touch layer of claim 5,

in the conductive pattern group, the number of the first conductive patterns is equal to the number of the second conductive patterns.

7. The touch layer of claim 5,

the demarcation road section comprises: first and second segments surrounding the first finger and opposing widthwise of the first finger;

the conductive pattern group comprises M1 first conductive patterns distributed along the first section and M2 second conductive patterns distributed along the second section, and both M1 and M2 are 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 is opposite to at least one of the M2 second conductive patterns along a width direction of the first finger.

10. The touch layer of claim 7,

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, wherein both M3 and M4 are greater than or equal to 1.

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

12. The touch layer of claim 10,

at least one of the M3 second conductive patterns is opposite to at least one of the M4 first conductive patterns in a width direction of the first finger.

13. The touch layer of claim 5,

the demarcation road segment includes: a third segment surrounding the first fingers and extending generally along the width of the first fingers, and a fourth segment between two adjacent first fingers;

the conductive pattern group further comprises N1 first conductive patterns distributed along the third segment and N2 second conductive patterns distributed along the fourth segment, wherein both N1 and N2 are greater than or equal to 1;

and/or the presence of a gas in the gas,

the conductive pattern group further comprises Q1 second conductive patterns distributed along the third section and Q2 first conductive patterns distributed along the fourth section, and Q1 and Q2 are both greater than or equal to 1.

14. The touch layer of claim 13,

said N1 and said N2 are equal;

and Q1 and Q2 are equal.

15. The touch layer of claim 13,

in a case where the conductive pattern group 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.

16. The touch layer of claim 13, wherein if 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.

17. The touch layer of claim 1,

the first finger comprises a first knuckle and a second knuckle, and the first knuckle is further from the first body than the second knuckle; the width of the first knuckle is smaller than the width of the second knuckle.

18. The touch layer of claim 17,

the conductive pattern group includes: at least one conductive pattern distributed along a portion of the demarcation segment around the first knuckle;

and/or the presence of a gas in the atmosphere,

the conductive pattern group includes: at least one conductive pattern distributed along a portion of the demarcation segment around the second knuckle.

19. The touch layer of any one of claims 1-18,

the first finger has a grid structure;

along the width direction of the first finger part, the areas of two adjacent grids are not equal; and/or the areas of two adjacent grids are unequal along the extending direction of the first finger part.

20. The touch layer of any one of claims 1-18, wherein the first finger has a grid structure;

the first finger part is provided with a first fracture which communicates two grids adjacent to each other in the width direction of the first finger part;

and/or the presence of a gas in the gas,

the first finger is provided with a second fracture which communicates two grids adjacent to each other in the extending direction of the first finger.

21. The touch layer of any one of claims 1-18,

a plurality of first virtual parts are arranged in the first body, and the first virtual parts and the first electrode block are electrically insulated from each other;

and/or the presence of a gas in the atmosphere,

the second electrode block is provided with a plurality of second virtual parts, and the second virtual parts and the second electrode block are electrically insulated from each other.

22. A touch display device, comprising:

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, a first electrode block, a second electrode block and a conductive pattern group form a grid structure; the grid structure comprises a plurality of grids;

the plurality of grids comprise at least one first grid, the first grid is surrounded by the first electrode block, the second electrode block and the conductive patterns in the conductive pattern group, and the first grid and the opening are opposite to each other along the thickness direction of the touch layer.

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