CN218383922U

CN218383922U - Touch display structure and display device

Info

Publication number: CN218383922U
Application number: CN202221609750.5U
Authority: CN
Inventors: 赵二瑾; 颜俊; 蒋志亮; 胡明
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-01-24
Anticipated expiration: 2032-06-24

Abstract

The disclosure relates to the technical field of display, in particular to a touch display structure and a display device, which are used for optimizing the touch effect and the display effect of the display device. The touch display structure comprises a light-emitting substrate and a touch structure arranged on at least one side of the light-emitting substrate. In the touch structure, two adjacent first sub-touch channels in the same first touch channel are electrically connected. Two adjacent second sub-touch channels in the same second touch channel are electrically connected. The touch structure comprises a plurality of metal wires, and the metal wires are mutually crossed to form a plurality of metal grids. The light emitting substrate includes a plurality of sub-pixels. The orthographic projections of the light emitting areas of the at least two sub-pixels on the reference surface are positioned in the orthographic projection range of the same metal grid on the reference surface. The touch display structure can improve the light transmittance of the touch structure, optimize the display effect of the display device, reduce the resistance of the touch structure and ensure the touch effect of the display device.

Description

Touch display structure and display device

Technical Field

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

Background

With the continuous development of electronic products, a display device with a touch function and a display function can realize simple and flexible human-computer interaction, so that the display device is widely applied.

An AMOLED (Active Matrix Organic Light-Emitting Diode) display device can realize a full-screen, a narrow frame, high resolution, curling wearing, folding, and the like, and becomes an important development direction in the display technology field.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a touch display structure and a display device, aiming at increasing the light transmittance of the touch structure and preventing the touch structure from shielding the light-emitting path of a light-emitting substrate, thereby improving the display effect of the display device; meanwhile, the resistance of the touch structure is reduced, and the touch effect of the touch structure is prevented from being reduced due to overhigh resistance.

In order to achieve the purpose, the embodiment of the disclosure adopts the following technical scheme:

in one aspect, a touch display structure is provided, which includes a light-emitting substrate and a touch structure disposed on at least one side of the light-emitting substrate.

The touch structure comprises a plurality of first touch channels extending along a first direction and a plurality of second touch channels extending along a second direction. The first direction and the second direction intersect with each other. The plurality of first touch channels and the plurality of second touch channels are insulated from each other.

The at least one first touch channel comprises a plurality of adjacent first sub-touch channels, and each first sub-touch channel comprises a plurality of first touch electrodes which are arranged along the first direction and are electrically connected in sequence; in the same first touch channel, two adjacent first sub-touch channels are electrically connected. And/or the presence of a gas in the atmosphere,

the at least one second touch channel comprises a plurality of adjacent second sub-touch channels, and each second sub-touch channel comprises a plurality of second touch electrodes which are arranged along the second direction and are electrically connected in sequence; and in the same second touch channel, two adjacent second sub-touch channels are electrically connected.

The touch structure comprises a plurality of metal wires, and the metal wires are mutually crossed to form a plurality of metal grids.

The light-emitting substrate comprises a plurality of sub-pixels, each sub-pixel comprising a light-emitting area; orthographic projections of light emitting areas of at least two sub-pixels on a reference surface are positioned in the orthographic projection range of the same metal grid on the reference surface; the reference surface is a plane where the light-emitting substrate is located.

In some embodiments, along the second direction, in the same first touch channel, the first touch electrodes in two adjacent first sub-touch channels are arranged in a one-to-one correspondence; at least one pair of first touch electrodes arranged correspondingly is electrically connected.

In some embodiments, the first touch channel further includes a first connection portion, and at least one pair of correspondingly disposed first touch electrodes are electrically connected through the first connection portion; the first connecting portion extends substantially in the second direction.

In some embodiments, along the first direction, in the same second touch channel, the second touch electrodes in two adjacent second sub-touch channels are arranged in a one-to-one correspondence; at least one pair of second touch electrodes arranged correspondingly is electrically connected.

In some embodiments, the second touch channel further includes a second connection portion, and at least one pair of correspondingly disposed second touch electrodes are electrically connected through the second connection portion; the second connecting portion extends substantially in the first direction.

In some embodiments, the first touch channel includes a plurality of first connection portions, the second touch channel includes a plurality of second connection portions, and at least one first connection portion and at least one second connection portion intersect.

In some embodiments, the touch structure includes a first conductive layer, an insulating layer, and a second conductive layer stacked. The insulating layer is located between the first conducting layer and the second conducting layer, and through holes are formed in the insulating layer. The first touch electrode and the second touch electrode are located on the first conductive layer.

The first connecting portion is located on the first conductive layer, the second connecting portion is located on the second conductive layer, and the second connecting portion is electrically connected with the corresponding second touch electrode through the via hole. Or,

the second connecting portion is located on the first conducting layer, the first connecting portion is located on the second conducting layer, and the first connecting portion is electrically connected with the corresponding first touch electrode through the via hole.

In some embodiments, the first touch channel further includes a third connection portion, and any two adjacent first touch electrodes are electrically connected to each other through the third connection portion along the first direction. The second touch channel further comprises a fourth connecting portion, and any two adjacent second touch electrodes are electrically connected through the fourth connecting portion along the second direction.

In some embodiments, the first touch electrode and the second touch electrode are substantially diamond-shaped electrodes. The first touch channel is located in a first rectangular area extending along the first direction, the second touch channel is located in a second rectangular area extending along the second direction, and the rectangular area where the first rectangular area and the second rectangular area intersect is a touch unit area.

The third connecting portion and the fourth connecting portion are crossed to form a first connecting structure. At least two first connecting structures are arranged in the touch unit area.

In some embodiments, the first touch channel includes a first connection portion, and the second touch channel includes a second connection portion. The first connecting portion and the second connecting portion are intersected to form a second connecting structure. At least one second connecting structure is arranged in the touch unit area.

In some embodiments, the touch cell area includes at least one of the first touch electrodes; and/or the touch unit area comprises at least one second touch electrode.

In some embodiments, the touch unit region includes two first touch electrodes located in the same first sub-touch channel and disposed adjacently, and two second touch electrodes located in the same second sub-touch channel and disposed adjacently; each of the two first touch electrodes is adjacent to the two second touch electrodes.

In some embodiments, the first touch electrode, the second touch electrode, the third connecting portion, and the fourth connecting portion are formed by a plurality of the metal meshes.

In a case where the first touch channel includes a first connection portion, and/or the second touch channel includes a second connection portion, the first connection portion and/or the second connection portion are formed of a plurality of the metal meshes. In some embodiments, the light emitting substrate includes a plurality of pixel units, each pixel unit including a plurality of sub-pixels capable of emitting different colors of light.

Orthographic projections of light emitting areas of a plurality of sub-pixels of the pixel unit on the reference surface are positioned in the orthographic projection range of at least one metal grid on the reference surface; in addition, in the plurality of sub-pixels of the pixel unit, the orthographic projections of the light emitting areas of at least two sub-pixels on the reference surface are positioned in the range of the orthographic projection of the same metal grid on the reference surface.

In some embodiments, the pixel cell includes one sub-pixel capable of emitting red light, one sub-pixel capable of emitting blue light, and two sub-pixels capable of emitting green light. The orthographic projections of the light emitting areas of all the sub-pixels in the pixel unit on the reference surface are positioned in the range of the orthographic projection of the same metal grid on the reference surface.

In some embodiments, the plurality of sub-pixels are arranged in a GGRB manner.

In some embodiments, the pixel cell includes one sub-pixel capable of emitting red light, one sub-pixel capable of emitting blue light, and one sub-pixel capable of emitting green light.

Orthographic projections of light emitting areas of all sub-pixels in the pixel unit on the reference surface are positioned in the range of the orthographic projection of the same metal grid on the reference surface; or,

in the pixel unit, the orthographic projection of the luminous zone of the sub-pixel capable of emitting red light on the reference surface is positioned in the range of the orthographic projection of one metal grid on the reference surface, and the orthographic projection of the luminous zone of the sub-pixel capable of emitting blue light and the orthographic projection of the luminous zone of the sub-pixel capable of emitting green light on the reference surface are both positioned in the range of the orthographic projection of the other metal grid on the reference surface.

In some embodiments, the plurality of sub-pixels are in a Real RGB arrangement.

In some embodiments, the plurality of metal meshes includes a plurality of first sub-mesh groups and a plurality of second sub-mesh groups, the first sub-mesh groups and the second sub-mesh groups being alternately arranged; the first subgrid group includes at least one first subgrid and the second subgrid includes at least one second subgrid.

Wherein, the orthographic projection of the light emitting areas of the sub-pixels in the plurality of sub-pixels of the pixel unit on the reference plane is within the range of the orthographic projection of the same first sub-grid on the reference plane; the orthographic projection of the light emitting areas of all the sub-pixels in the pixel unit on the reference plane is located in the range of the orthographic projection of the same second sub-grid on the reference plane.

In some embodiments, the metal wires extend in straight lines, and the metal grid formed by the plurality of metal wires crossing each other is rectangular. And/or the metal wires extend in a folding line mode, and the metal mesh formed by the plurality of metal wires in an intercrossing mode is polygonal.

In some embodiments, a plurality of metal lines are correspondingly disposed between the light emitting areas of at least one pair of adjacent sub-pixels, and the metal lines are electrically connected to each other.

In some embodiments, the light-emitting substrate includes a plurality of first signal lines extending along the first direction, and an orthogonal projection of the metal line on the reference surface at least partially overlaps with an orthogonal projection of at least one first signal line on the reference surface; and/or the light-emitting substrate further comprises a plurality of second signal lines extending along the second direction, and the orthographic projection of the metal line on the reference surface is at least partially overlapped with the orthographic projection of at least one second signal line on the reference surface.

In some embodiments, the first signal line comprises at least one of an enable signal line, a scan signal line, or an initialization signal line; the second signal line includes at least one of a data line or a power line.

In another aspect, a display device is provided, which includes the touch display structure according to any one of the foregoing embodiments.

The touch display structure and the display device provided by the embodiment of the disclosure have the following beneficial effects:

the adjacent sub-touch channels are arranged in the at least one touch channel, and the sub-touch channels in the same touch channel are electrically connected, so that the number of touch electrodes in the touch channels is increased under the condition of not changing the number of the touch channels of the touch structure and avoiding increasing the load of a touch chip, and the number of connecting structures for electrically connecting the adjacent touch electrodes in the whole screen of the touch structure can be increased. Through increasing connection structure's quantity, can reduce touch structure's whole resistance, guarantee to get rid of partial metal wire, improve touch structure's light transmissivity back, touch structure's resistance still maintains in can satisfying the within range of normal touch-control function, satisfies the demand to touch structure's higher light transmissivity and better touch-control effect simultaneously.

Drawings

In order to more clearly illustrate the technical solutions in the present disclosure, the drawings needed to be used in some embodiments of the present disclosure will be briefly 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 the drawings. Furthermore, the drawings in the following description may be considered 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. 1 is a top view of a display device provided in accordance with some embodiments;

FIG. 2 is a top view of a light emitting substrate provided in accordance with some embodiments;

FIG. 3 is another top view of a light emitting substrate provided in accordance with some embodiments;

FIG. 4 is another top view of a light emitting substrate provided in accordance with some embodiments;

FIG. 5 isbase:Sub>A sectional view taken along section line A-A' in FIG. 1;

FIG. 6 is a top view of a touch display structure according to some embodiments;

FIG. 7 is an enlarged view of the structure corresponding to the area of the dashed line box B in FIG. 6;

FIG. 8 is an enlarged view of a structure corresponding to the area of the dashed line box C in FIG. 7;

FIG. 9 is an enlarged view of another structure corresponding to the area indicated by the dashed line C in FIG. 7;

FIG. 10 is an enlarged view of a structure corresponding to the area indicated by the dashed line in FIG. 6;

FIG. 11 is an enlarged view of another structure corresponding to the area indicated by the dashed line box D in FIG. 6;

FIG. 12 is an enlarged view of another structure corresponding to the area indicated by the dashed line D in FIG. 6;

FIG. 13 is another top view of a touch display structure according to some embodiments;

FIG. 14 is an enlarged view of a structure corresponding to the area indicated by the dashed line E in FIG. 10;

FIG. 15 is a sectional view taken along section line F-F' in FIG. 14;

FIG. 16 is another top view of a touch display structure according to some embodiments;

FIG. 17 is an enlarged view of the structure corresponding to the area of the dotted line frame G in FIG. 10;

FIG. 18 is an enlarged view of the structure corresponding to the area indicated by the dashed line box H in FIG. 11;

FIG. 19 is an enlarged view of the structure corresponding to the area of the dotted line frame I in FIG. 12;

FIG. 20 is a sectional view taken along section line J-J' in FIG. 19;

FIG. 21 is an enlarged view of the structure corresponding to the region indicated by the dashed line K in FIG. 14;

FIG. 22 is another top view of a touch display structure according to some embodiments;

FIG. 23 is an enlarged view of another structure corresponding to the area of the dashed line box E in FIG. 10;

FIG. 24 is another sectional view taken along section line F-F' in FIG. 14;

FIG. 25 is another top view of a touch display structure according to some embodiments;

FIG. 26 is another top view of a touch display structure according to some embodiments;

FIG. 27 is another top view of a touch display structure provided in accordance with some embodiments;

FIG. 28 is another top view of a touch display structure according to some embodiments;

FIG. 29 is another top view of a touch display structure according to some embodiments;

FIG. 30 is another top view of a touch display structure provided in accordance with some embodiments;

FIG. 31 is another top view of a touch display structure according to some embodiments;

fig. 32 is another top view of a touch display structure according to some embodiments.

Detailed Description

The 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 to be understood 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 associated 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 "electrically connected" and "connected," along with their derivatives, may be used. For example, the term "electrically 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. 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.

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).

In the description of the present disclosure, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing and simplifying the disclosure, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the disclosure.

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, example 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 the exemplary embodiments.

Fig. 1 is a top view of a display device 1000 provided by some embodiments of the present disclosure. The display device 1000 may be any device that displays whether in motion (e.g., video) or stationary (e.g., still image) and whether textual or pictorial. More particularly, it is contemplated that embodiments may be implemented in or associated with a variety of electronic devices such as, but not limited to, mobile telephones, wireless devices, personal Data Assistants (PDAs), virtual Reality (VR) displays, hand-held or portable computers, global Positioning System (GPS) receivers/navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, auto displays (e.g., odometer display, etc.), navigators, cockpit controls and/or displays, displays of camera views (e.g., of a rear view camera in a vehicle), photo electronics, electronic billboards or signs, projectors, architectural structures, packaging, and aesthetic structures (e.g., a display of images for a piece of jewelry), and so forth.

As shown in fig. 1, the display device 1000 may include a touch display structure 100.

The touch Display structure 100 may be a Liquid Crystal Display (LCD) panel; the touch display structure 100 may also be an electroluminescent display panel or a photoluminescent display panel. In the case that the touch display structure 100 is an electroluminescent display panel, the electroluminescent display panel may be an Organic Light-Emitting Diode (OLED) display panel or a Quantum Dot electroluminescent (QLED) display panel. In the case that the touch display structure 100 is a photoluminescent display panel, the photoluminescent display device may be a quantum dot photoluminescent display panel.

Illustratively, the display device 1000 may further include a circuit board, a flexible wiring board, a driving chip, or the like.

The touch display structure 100 has a light emitting side and a backlight side, where the light emitting side is a side of the touch display structure 100 for displaying an image, and the backlight side is a side of the touch display structure 100 away from the light emitting side.

Illustratively, the driving chip is located on the backlight side of the touch display structure 100 and is electrically connected to the touch display structure 100; the flexible circuit board is located on the backlight side of the touch display structure 100 and electrically connected to the touch display structure 100. The circuit board, the driving chip and the flexible circuit board are used for providing data signals required by a display picture to the touch display structure 100.

Illustratively, the display device 1000 may further include a front frame and a rear case. The front frame is disposed on the display side (the side for performing light emitting display) of the touch display structure 100 and surrounds the touch display structure 100. The rear shell is disposed on the non-display side (the side opposite to the display side) of the touch display structure 100, and the rear shell is assembled with the front frame to protect and fix the touch display structure 100.

The touch display structure comprises a light-emitting substrate and a touch structure. The touch structure is disposed on the light-emitting side of the light-emitting substrate (i.e., the side from which light of the light-emitting substrate is emitted), so that the light transmittance of the touch structure affects the light-emitting efficiency of the light-emitting substrate. In addition, with the development of the technology of the optical device under the screen (for example, the fingerprint sensor under the screen), in order to improve the sensitivity of the optical device under the screen to the reflected light of the contact object (for example, a finger) on the screen, the light transmittance of the touch structure disposed on the light emitting side of the light emitting substrate is required to be higher and higher.

To solve the above technical problem, an embodiment of the present disclosure provides a touch display structure 100.

The touch display structure 100 includes a light-emitting substrate 20 and a touch structure 10 disposed on at least one side of the light-emitting substrate 20 (see fig. 5).

Exemplarily, the light emitting substrate 20 may include a light emitting side and a backlight side. The light-emitting side is the side of the light-emitting substrate 20 that emits light, and the backlight side is the side that faces away from the light-emitting side. The touch structure 10 is disposed on the light emitting side of the light emitting substrate 20 (see fig. 5).

For example, the touch structure 10 may be separately fabricated on a substrate and then stacked on the light-emitting substrate 20 together with the substrate, or the touch structure 10 may be fabricated directly on the light-emitting substrate 20.

As shown in fig. 2 to 4, the light emitting substrate 20 includes a plurality of sub-pixels P.

Illustratively, each sub-pixel P may emit one of blue, green, red, or white light.

For example, the plurality of subpixels P may include a first subpixel P1, a second subpixel P2, and a third subpixel P3, wherein the first subpixel P1, the second subpixel P2, and the third subpixel P3 emit different colors of light, respectively. For example, the first subpixel P1 may emit red light, the second subpixel P2 may emit green light, and the third subpixel P3 may emit blue light.

For example, the plurality of subpixels P may be disposed in different arrangement.

For example, referring to fig. 2, a plurality of subpixels P are in a Real RGB arrangement. The plurality of sub-pixels P are divided into a plurality of first pixel columns S1 and a plurality of second pixel columns S2, the first pixel columns S1 and the second pixel columns S2 each extend in the second direction Y, and the plurality of first pixel columns S1 and the plurality of second pixel columns S2 are alternately arranged in the first direction X.

The first pixel column S1 includes a plurality of first sub-pixels P1 and a plurality of third sub-pixels P3 alternately arranged in the second direction Y, and the second pixel column S2 includes a plurality of second sub-pixels P2 sequentially arranged in the second direction Y.

For example, referring to fig. 3, a plurality of sub-pixels P are arranged in a diamond arrangement. Among the plurality of sub-pixels P, the first sub-pixels P1 and the second sub-pixels P2 are alternately arranged along the second direction Y, and the first sub-pixels P1 and the second sub-pixels P2 are also alternately arranged along the first direction X; the third subpixels P3 are arrayed along the first direction X and the second direction Y.

Illustratively, among the plurality of sub-pixels P in which the diamond is arranged, the sub-pixels P have a rectangular shape, and one diagonal line of the rectangular shape extends along the first direction X and the other diagonal line extends along the second direction Y.

Illustratively, among the plurality of sub-pixels P arranged in a diamond, the sub-pixels P are substantially rectangular, for example, four corners of the rectangle are arc corners.

Illustratively, at least one type of sub-pixels P among the plurality of sub-pixels P of the diamond arrangement has a substantially fan shape.

For example, referring to fig. 4, a plurality of subpixels P are in a GGRB arrangement. The plurality of sub-pixels P are divided into a plurality of pixel groups S3, and the plurality of pixel groups S3 are distributed in an array along the first direction X and the second direction Y.

Each pixel group S3 includes a third pixel group P3', and the third pixel group P3' includes two third sub-pixels P3 arranged along the first direction X. Each pixel group S3 further includes a second sub-pixel P2 and a first sub-pixel P1, and the third pixel group P3', the second sub-pixel P2 and the first sub-pixel P1 are sequentially arranged along the second direction Y.

The first direction X and the second direction Y intersect. For example, the first direction X and the second direction Y may be perpendicular to each other.

It should be noted that the first direction X may be a transverse direction of the display device 1000, and the second direction Y may be a longitudinal direction of the display device 1000; alternatively, the first direction X may be a row direction in the plurality of sub-pixel P-array arrangements, and the second direction Y may be a column direction in the plurality of sub-pixel P-array arrangements.

In the drawings of the present disclosure, only the first direction X is taken as a row direction, and the second direction Y is taken as a column direction for illustration. In the embodiments of the present disclosure, the technical solutions obtained by rotating the drawings by a certain angle (for example, 30 degrees, 45 degrees, or 90 degrees, etc.) are also within the protection scope of the present disclosure.

Figure 5 showsbase:Sub>A cross-sectional view along section linebase:Sub>A-base:Sub>A' in figure 1. As shown in fig. 5, the light emitting substrate 20 includes a substrate 21, and a pixel circuit layer 22 and a light emitting device layer 23 which are stacked on the substrate 21.

The substrate 21 may have a single-layer structure or a multi-layer structure. For example, the substrate 21 may include a flexible base layer and a buffer layer that are sequentially stacked. For another example, the substrate 21 may include a plurality of flexible base layers and buffer layers alternately arranged. The material of the flexible base layer can comprise polyimide, and the material of the buffer layer can comprise silicon nitride and/or silicon oxide, so as to achieve the effects of blocking water and oxygen and blocking alkaline ions.

The pixel circuit layer 22 includes an active layer 201, a first gate insulating layer 202, a first gate conductive layer 203, a second gate insulating layer 204, a second gate conductive layer 205, an interlayer dielectric layer 206, a first source-drain conductive layer 207, a passivation layer 208, a first planarization layer 209, a second source-drain conductive layer 210, and a second planarization layer 211, which are sequentially stacked on the substrate 21.

Alternatively, the source and drain conductive layers may have only one layer (e.g., only the first source and drain conductive layer 207 or only the second source and drain conductive layer 210), and accordingly, the planarization layer may also have only one layer (e.g., only the first planarization layer 209 or only the second planarization layer 211).

The pixel circuit layer 22 is provided with a plurality of thin film transistors TFT and a plurality of capacitive structures Cst. Each of the sub-pixels P correspondingly includes at least one thin film transistor TFT and at least one capacitive structure Cst. Only two of the thin film transistors TFT and the corresponding two capacitive structures Cst are exemplarily shown in fig. 5.

The thin film transistor TFT includes a gate electrode Ta, a source electrode Tb, a drain electrode Tc, and an active layer pattern Td. The source electrode Tb, the drain electrode Tc, and the active layer pattern Td are electrically contacted.

The active layer pattern Td is configured to form a channel under the control of the gate electrode Ta so that conduction is made between the source electrode Tb and the drain electrode Tc connected to the active layer pattern Td, thereby turning on the thin film transistor TFT. Illustratively, the thin film transistor TFT further includes a portion of the first gate insulating layer 202 between the film layer where the gate electrode Ta is located and the film layer where the active layer pattern Td is located.

The control electrode of each thin film transistor TFT is a gate electrode Ta of the transistor, the first electrode is one of a source electrode Tb and a drain electrode Tc of the thin film transistor TFT, and the second electrode is the other of the source electrode Tb and the drain electrode Tc of the thin film transistor TFT. Since the source Tb and the drain Tc of the thin film transistor TFT may be symmetrical in structure, the source Tb and the drain Tc thereof may be indistinguishable in structure.

The capacitive structure Cst includes a first plate Cst1 and a second plate Cst2, wherein the first plate Cst1 is located on the first gate conductive layer 203, and the second plate Cst2 is located on the second gate conductive layer 205.

The light emitting device layer 23 includes an anode layer 301, a pixel defining layer 302, a light emitting function layer 303, and a cathode layer 304, which are sequentially stacked on the pixel circuit layer 22 on the side away from the substrate 21.

The light emitting device layer 23 is provided with a plurality of light emitting devices L. The light emitting device L includes an anode L1 at the anode layer 301, a cathode L2 at the cathode layer 304, and a light emitting pattern L3 at the light emitting function layer 303.

Here, the anode L1 at the anode layer 301 is configured to transmit a high level voltage (e.g., a power voltage signal VDD), and the cathode L2 at the cathode layer 304 is configured to transmit a low level voltage (e.g., a cathode voltage signal VSS). The light emitting pattern L3 may realize light emission under an electric field formed by the anode L1 and the cathode L2.

Illustratively, the light emission function layer 303 may further include one or more of an Electron Transport Layer (ETL), an Electron Injection Layer (EIL), a Hole Transport Layer (HTL), and a Hole Injection Layer (HIL) in addition to the light emission pattern L3.

Illustratively, the anode L1 may be electrically connected to the source Tb or the drain Tc of the thin film transistor TFT, so that the light emitting device L realizes light emission under the control of the thin film transistor TFT.

As shown in fig. 5, the pixel defining layer 302 has a plurality of openings K, the light-emitting pattern L3 is at least partially located in the openings K, and the light emitted from the light-emitting pattern L3 is emitted to the outside through the openings K.

As shown in fig. 5, each sub-pixel P includes an emission region K'. The light-emitting region K 'is a region defined by the opening K, that is, the light-emitting region K' is an effective light-emitting region of the sub-pixel P.

For example, as shown in fig. 5, a support layer 305 may be further disposed between the pixel defining layer 302 and the cathode layer 304, and the support layer 305 may function to support the protective film layer, so as to prevent the protective film layer from contacting the anode layer 301 or other traces to break the anode layer 301 or other traces.

Illustratively, as shown in fig. 5, the light-emitting substrate 20 further includes an encapsulation layer 24 disposed on a side of the light-emitting device L away from the substrate 21. The encapsulation layer 24 may include a first encapsulation sublayer, a second encapsulation sublayer, and a third encapsulation sublayer disposed in a stacked order away from the substrate 21. Illustratively, the material of the first and third encapsulating sub-layers comprises an inorganic material and the material of the second encapsulating sub-layer comprises an organic material. The first packaging sublayer and the third packaging sublayer have the functions of blocking water vapor and oxygen, and the second packaging sublayer has certain flexibility, the function of absorbing water vapor and the like.

As shown in fig. 6, the touch structure 10 includes a plurality of first touch electrodes Tx and a plurality of second touch electrodes Rx.

As shown in fig. 7, the touch structure 10 includes a plurality of metal lines GL, which intersect with each other to form a plurality of metal grids G.

For example, as shown in fig. 7, in the touch structure 10, the touch electrode adopts a metal mesh structure (i.e., includes a plurality of metal meshes G), and compared with forming a planar electrode using ITO (Indium Tin Oxide) as the touch electrode, the touch electrode of the metal mesh structure has small resistance and high sensitivity, and can improve the touch sensitivity of the touch structure 10. The touch electrode adopting the metal mesh structure has high mechanical strength, so that the weight of the touch structure 10 can be reduced, and when the touch structure 10 is applied to the display device 1000, the display device 1000 can be thinned.

It should be noted that the touch electrodes of the metal mesh structure include the first touch electrodes Tx and the second touch electrodes Rx in the touch structure 10.

Exemplarily, as shown in fig. 7, the first touch electrode Tx and the second touch electrode Rx adopt a metal mesh structure. The metal grids G of the first touch electrode Tx and the second touch electrode Rx may be disposed in the same film layer, and the metal grids G of the first touch electrode Tx and the metal grids G of the second touch electrode Rx are disconnected, so that the first touch electrode Tx and the second touch electrode Rx are insulated from each other.

It should be noted that, in fig. 7, the metal grids G are filled with different patterns to distinguish different touch electrodes, and the metal grids G of the first touch electrode Tx and the second touch electrode Rx may be formed by using the same material and the same process.

Exemplarily, as shown in fig. 7, the first touch electrode Tx and the second touch electrode Rx have a diamond shape or a substantially diamond shape. The term "substantially diamond-shaped" refers to the shape of the touch electrodes (i.e. the first touch electrode Tx and the second touch electrode Rx) as a whole being diamond-shaped, but is not limited to the standard diamond shape, for example, the boundaries of the touch electrodes are allowed to be non-linear (e.g. zigzag), and as in the following embodiments, the shape of the touch electrodes as a whole is diamond-shaped, but the boundaries are zigzag.

Also, the electrode pattern shapes of the first touch electrode Tx and the second touch electrode Rx in the embodiment of the present disclosure are not limited to a diamond shape or a substantially diamond shape, and may also be, for example, a rectangle, a strip, or the like.

For example, the shape of the metal mesh G may be substantially hexagonal, rectangular or irregular polygonal according to the crossing pattern of the metal lines GL.

As shown in fig. 5, the touch structure 10 is disposed on one side of the light emitting substrate 20.

As shown in fig. 8, the orthographic projections of the light emitting areas K' of at least two sub-pixels P on the reference plane N are located within the orthographic projection range of the same metal grid G on the reference plane N.

The reference plane N is a plane where the light-emitting substrate 20 is located. Alternatively, the reference plane N may be a plane parallel to the light emitting substrate 20.

Exemplarily, the metal line GL is disposed to avoid the light emitting area K 'of the sub-pixel P, that is, an orthographic projection of the metal line GL on the reference plane N is mutually staggered from an orthographic projection of the light emitting area K' of the sub-pixel P on the reference plane N. Therefore, the situation that the light transmission efficiency is reduced due to the fact that the light emitted by the sub-pixels P is shielded by the metal lines GL of the touch structure 10 can be avoided.

As shown in fig. 9, in the related art, the orthographic projection of the light emitting region K ″ of one sub-pixel P 'on the reference plane N' is located within the orthographic projection range of one metal grid G 'on the reference plane N'. That is, one metal mesh G 'corresponds to one subpixel P'. Referring to fig. 9, the distribution density of the metal lines GL 'is higher, the light transmittance of the touch structure 10' is lower, and the display effect of the touch display structure is poorer.

The light transmittance of the touch structure 10 is related to the distribution density of the metal lines GL, that is, the greater the number of the distributed metal lines GL is, the smaller the area of the metal grid G is, the lower the light transmittance of the touch structure 10 is. In the touch structure 10 provided in the embodiment of the present disclosure, by setting the orthographic projection of the light emitting areas K 'of the at least two sub-pixels P on the reference plane N, the light emitting areas K' are located in the orthographic projection range of the same metal grid G on the reference plane N, the distribution density of the metal lines GL is reduced, and the area of the metal grid G is enlarged, thereby improving the light transmittance of the touch structure 10 and optimizing the display effect of the touch display structure 100.

Illustratively, the purpose of reducing the distribution density of the metal lines GL and enlarging the area of the metal grid G can be achieved by removing a part of the metal lines GL.

However, through the research of the inventors of the present disclosure, after removing a portion of the metal lines GL, reducing the distribution density of the metal lines GL, and enlarging the area of the metal mesh G, although the light transmittance of the touch structure 10 is greatly improved, the resistance of the touch structure 10 is rapidly increased accordingly, so that the touch sensitivity of the touch structure 10 is greatly influenced, and the touch effect is influenced.

To solve the technical problem, in the touch display structure 100 provided in the embodiment of the present disclosure, as shown in fig. 6, the touch structure 10 includes a plurality of first touch channels 1 extending along a first direction X, and a plurality of second touch channels 2 extending along a second direction Y.

It should be noted that the "first touch channel 1" is a channel formed by a plurality of first touch electrodes Tx that are electrically connected to each other and simultaneously transmit the same touch signal in the touch structure 10; the "second touch channel 2" is a channel formed by a plurality of second touch electrodes Rx electrically connected to each other in the touch structure 10 and transmitting the same touch signal at the same time.

As shown in fig. 6, each touch channel (including the first touch channel 1 and the second touch channel 2) is respectively connected to at least one touch line M, the touch lines M connected to the touch channels are collected to the binding region V and are finally electrically connected to a touch processor (not shown), and the touch processor transmits a touch signal to the touch channel through the touch line M, so as to achieve a touch effect of the touch structure 10.

As shown in fig. 10, at least one first touch channel 1 includes a plurality of adjacent first sub-touch channels 1a. For example, referring to fig. 10, a first touch channel 1 includes two adjacent first sub-touch channels 1a, and a second touch channel 2 includes a second sub-touch channel 2a.

As shown in fig. 11, the at least one second touch channel 2 includes a plurality of adjacent second sub-touch channels 2a. For example, referring to fig. 11, a first touch channel 1 includes a first sub-touch channel 1a, and a second touch channel 2 includes two adjacent second sub-touch channels 2a.

As shown in fig. 12, the at least one first touch channel 1 includes a plurality of adjacent first sub-touch channels 1a, and the at least one second touch channel 2 includes a plurality of adjacent second sub-touch channels 2a. For example, referring to fig. 12, a first touch channel 1 includes two adjacent first sub-touch channels 1a, and a second touch channel 2 includes two adjacent second sub-touch channels 2a.

On the basis of the foregoing embodiment, in the same first touch channel 1, two adjacent first sub-touch channels 1a are electrically connected; in the same second touch channel 2, two adjacent second sub-touch channels 2a are electrically connected.

For example, as shown in fig. 6, 10 and 12, in the same first touch channel 1, two first touch electrodes Tx belonging to two different and adjacent first sub-touch channels 1a are electrically connected, so as to achieve the purpose of electrically connecting two adjacent first sub-touch channels 1a in the same first touch channel 1, and thus a plurality of first sub-touch channels 1a in the same first touch channel 1 all transmit the same touch signal.

For example, as shown in fig. 13, in the same first touch channel 1, two adjacent first sub-touch channels 1a may be electrically connected to the same touch line M through different sub-touch lines M', so as to achieve the purpose of transmitting the same touch signal through the plurality of first sub-touch channels 1a in the same first touch channel 1.

For example, as shown in fig. 6, 11 and 12, in the same first touch channel 1, two second touch electrodes Rx belonging to two different and adjacent second sub-touch channels 2a are electrically connected, so as to achieve the purpose of electrically connecting two adjacent second sub-touch channels 2a in the same second touch channel 2, and a plurality of first sub-touch channels 1a in the same first touch channel 1 transmit the same touch signal.

For example, as shown in fig. 13, in the same second touch channel 2, two adjacent second sub-touch channels 2a may be electrically connected to the same touch line M through different sub-touch lines M', so as to achieve the purpose of transmitting the same touch signal by the plurality of second sub-touch channels 2a in the same second touch channel 2.

As shown in fig. 10 to 12, the first sub-touch channel 1a includes a plurality of first touch electrodes Tx arranged along the first direction X and electrically connected in sequence, and the second sub-touch channel 2a includes a plurality of second touch electrodes Rx arranged along the second direction Y and electrically connected in sequence.

The plurality of first touch channels 1 and the plurality of second touch channels 2 are insulated from each other. The plurality of first touch channels 1 and the plurality of second touch channels 2 are intersected with each other, so that the first touch electrodes Tx and the second touch electrodes Rx are alternately arranged.

For example, as shown in fig. 10 to 12, the first touch electrodes Tx and the second touch electrodes Rx are alternately arranged, and adjacent different touch electrodes (i.e., between the first touch electrodes Tx and the second touch electrodes Rx) are insulated and can generate mutual capacitance, and the mutual capacitance values of the touch electrodes can change after being touched, and the touch position can be determined by detecting the mutual capacitance values and determining the variation of the mutual capacitance values before and after being touched, so as to achieve the touch effect of the touch structure 10.

For example, referring to fig. 7, the first touch electrode Tx and the second touch electrode Rx are insulated from each other by disconnecting the metal mesh G of the first touch electrode Tx from the metal mesh G of the second touch electrode Rx.

Based on the above embodiment, in order to achieve the electrical connection between the adjacent first touch electrodes Tx in the same first sub-touch channel 1a, the electrical connection between the adjacent second touch electrodes Rx in the same second sub-touch channel 2a, and the effect of insulating the first touch electrodes Tx and the second touch electrodes Rx from each other, at the intersection position of the first touch channel 1 and the second touch channel 2, at least one pair of touch electrodes (the first touch electrodes Tx or the second touch electrodes Rx) are electrically connected through a connection structure (i.e. a structure that is intersected with each other and insulated from each other).

For example, referring to fig. 14, two adjacent first touch electrodes Tx arranged along the first direction X are electrically connected through a third connection portion B3, and two adjacent second touch electrodes Rx arranged along the second direction Y are electrically connected through a fourth connection portion B4. The third connection portion B3 and the fourth connection portion B4, which are arranged to cross each other, are insulated from each other, so that the first touch electrode Tx and the second touch electrode Rx are insulated from each other.

Illustratively, as shown in fig. 15, the touch structure 10 includes a first conductive layer 10A, an insulating layer 10B, and a second conductive layer 10C, which are stacked, wherein the insulating layer 10B is located between the first conductive layer 10A and the second conductive layer 10C.

The first touch electrode Tx and the second touch electrode Rx are disposed on the same layer (e.g., on the first conductive layer 10A or on the second conductive layer 10B), the third connection portion B3 and the fourth connection portion B4 are disposed on different layers, and the layer where the third connection portion B3 is disposed (e.g., the first conductive layer 10A) and the layer where the fourth connection portion B4 is disposed (e.g., the second conductive layer 10C) are insulated from each other by the insulating layer 10B, so that the third connection portion B3 and the fourth connection portion B4 are insulated from each other.

As a result of research by the inventors of the present disclosure, in the touch structure 10, two layers of conductive metals are present at the positions of the connection structures (e.g., the third connection portion B3 and the fourth connection portion B4) compared to the positions of the touch electrodes (including the first touch electrode Tx and the second touch electrode Rx). The larger the number of the connection structures, the more the corresponding double-layer conductive metal, and the lower the resistance of the touch structure 10 can be made.

In the related art, as shown in fig. 16, only one sub-touch channel (the first sub-touch channel 1a 'or the second sub-touch channel 2 a') is disposed in each touch channel (the first touch channel 1 'or the second touch channel 2'). Referring to fig. 16, after the first touch channel 1' and the second touch channel 2' are crossed, the number of connection structures formed in the whole screen of the touch structure 10' is less.

In the touch structure 10 provided in the embodiment of the present disclosure, by disposing a plurality of adjacent sub-touch channels (including the first sub-touch channel 1a and the second sub-touch channel 2 a) in at least one touch channel (including the first touch channel 1 and the second touch channel 2), and disposing electrical connections between the plurality of sub-touch channels in the same touch channel, the number of touch electrodes (including the first touch electrode Tx and the second touch electrode Rx) in the touch channel is increased without changing the number of touch channels of the touch structure 10 and increasing the load of the touch chip, so as to increase the number of connection structures (such as the third connection portion B3 and the fourth connection portion B4) for making electrical connection between adjacent touch electrodes in the whole screen of the touch structure 10. By increasing the number of the connecting structures for electrically connecting the adjacent touch electrodes, the overall resistance of the touch structure 10 can be reduced, and it is ensured that after part of the metal lines GL are removed and the light transmittance of the touch structure 10 is improved, the resistance of the touch structure 10 is still maintained within a range capable of meeting a normal touch function, and the touch effect of the touch structure 10 is optimized.

In some embodiments, as shown in fig. 10 and 12, in the second direction Y, the first touch electrodes Tx in two adjacent first sub-touch channels 1a are disposed in a one-to-one correspondence manner in the same first touch channel 1. Referring to fig. 12, the first touch channel 1 includes two adjacent first sub-touch channels 1a, the first sub-touch channels 1a belong to different first sub-touch channels in the same first touch channel 1, and two adjacent first touch electrodes Tx are disposed in the second direction Y in a one-to-one correspondence manner.

Referring to fig. 12, at least one pair of the first touch electrodes Tx disposed correspondingly is electrically connected. The "at least one pair of correspondingly disposed first touch electrodes Tx" is two first touch electrodes Tx that belong to different first sub-touch channels 1a in the same first touch channel 1 and are adjacently disposed in the second direction Y.

At least one pair of correspondingly arranged first touch electrodes Tx is electrically connected, so that the first sub-touch channels 1a in the same first touch channel 1 are electrically connected, and the first sub-touch channels 1a in the same first touch channel 1 transmit the same touch signal, thereby avoiding increasing the number of touch channels and avoiding increasing the load of the touch chip.

For example, in the same first touch channel 1, only one pair of first touch electrodes Tx disposed correspondingly is electrically connected. Or, for example, in the same first touch channel 1, some of the correspondingly disposed first touch electrodes Tx are electrically connected, and some of the correspondingly disposed first touch electrodes Tx are disconnected. Or, for example, in the same first touch channel 1, each pair of correspondingly disposed first touch electrodes Tx is electrically connected.

The first touch electrodes Tx that are correspondingly disposed are electrically connected through the connecting portions, and the resistance of the touch structure 10 can be controlled by controlling the number of the pairs of the first touch electrodes Tx that are electrically connected and correspondingly disposed, that is, the number of the connecting portions that electrically connect the first touch electrodes Tx that are correspondingly disposed, the more the connecting portions are, the more the conductive metal in the touch structure 10 is, the less the resistance of the touch structure 10 is.

In an exemplary embodiment, as shown in fig. 17, the first touch channel 1 further includes a first connection portion B1, and at least one pair of correspondingly disposed first touch electrodes Tx are electrically connected through the first connection portion B1. The first connection portion B1 extends substantially in the second direction Y.

For example, the first touch electrode Tx may be integrally provided with the first connection portion B1.

For example, the same first touch channel 1 may include at least one first connection portion B1, and the first connection portion B1 electrically connects the plurality of first sub-touch channels 1a located in the same first touch channel 1, so that the plurality of first sub-touch channels 1a located in the same first touch channel 1 transmit the same touch signal. By controlling the number of the first connection portions B1, the resistance of the touch structure 10 can be controlled, and the larger the number of the first connection portions B1 is, the smaller the resistance of the touch structure 10 is.

In some embodiments, as shown in fig. 11 and 12, in the first direction X, the second touch electrodes Rx in two adjacent second sub-touch channels 2a in the same second touch channel 2 are disposed in a one-to-one correspondence. Referring to fig. 12, the second touch channel 2 includes two second sub-touch channels 2a disposed adjacently, and the two second touch electrodes Rx disposed adjacently in the first direction X are disposed in one-to-one correspondence in the same first touch channel 2 and belong to different first sub-touch channels 2a.

At least one pair of the second touch electrodes Rx disposed correspondingly are electrically connected. The "at least one pair of correspondingly disposed second touch electrodes Rx" is two second touch electrodes Rx that belong to different second sub-touch channels 2a in the same second touch channel 2 and are adjacently disposed in the first direction X.

By providing at least one pair of correspondingly disposed second touch electrodes Rx for electrical connection, the second sub-touch channels 2a in the same second touch channel 2 are electrically connected, so that the second sub-touch channels 2a in the same second touch channel 2 transmit the same touch signal, thereby avoiding increasing the number of touch channels and avoiding increasing the load of the touch chip.

For example, only one pair of the second touch electrodes Rx disposed correspondingly in the same second touch channel 2 is electrically connected. Or, for example, in the same second touch channel 2, some of the correspondingly disposed second touch electrodes Rx are electrically connected, and some of the correspondingly disposed second touch electrodes Rx are disconnected. Or, for example, in the same second touch channel 2, each pair of correspondingly disposed second touch electrodes Rx are electrically connected.

The second touch electrodes Rx correspondingly disposed are electrically connected through the connecting portion, and the resistance of the touch structure 10 can be controlled by controlling the number of the pairs of the second touch electrodes Rx that are electrically connected and correspondingly disposed, that is, controlling the number of the connecting portions that electrically connect the second touch electrodes Rx correspondingly disposed, where the more the connecting portions are, the more the conductive metal in the touch structure 10 is, the smaller the resistance of the touch structure 10 is.

In an exemplary embodiment, as shown in fig. 18, the second touch channel 2 further includes a second connection portion B2, and at least one pair of correspondingly disposed second touch electrodes Rx are electrically connected through the second connection portion B2. The second connection portion B2 extends substantially in the first direction X.

For example, the second touch electrode Rx may be integrally disposed with the second connection portion B2.

For example, at least one second connection portion B2 may be included in the same second touch channel 2, and the second connection portion B2 electrically connects the plurality of second sub-touch channels 2a located in the same second touch channel 2, so that the plurality of second sub-touch channels 2a located in the same second touch channel 2 transmit the same touch signal. By controlling the number of the second connection portions B2, the resistance of the touch structure 10 can be controlled, and the larger the number of the second connection portions B2 is, the smaller the resistance of the touch structure 10 is.

In some embodiments, the first touch channel 1 includes a plurality of first sub-touch channels 1a, and the second touch channel 2 includes a plurality of second sub-touch channels 2a. For example, referring to fig. 12, the first touch channel 1 includes two first sub-touch channels 1a, and the second touch channel 2 includes two second sub-touch channels 2a.

On this basis, referring to fig. 19, at least one first connection portion B1 and at least one second connection portion B2 intersect. The first connection portion B1 and the second connection portion B2 are insulated from each other.

By controlling the number of the first connection portions B1 and the second connection portions B2, the resistance of the touch structure 10 can be controlled, and the larger the number of the first connection portions B1 and the second connection portions B2 is, the smaller the resistance of the touch structure 10 is.

In some embodiments, as shown in fig. 15 and 20, the touch structure 10 includes a first conductive layer 10A, an insulating layer 10B, and a second conductive layer 10C, which are stacked, and the insulating layer 10B is located between the first conductive layer 10A and the second conductive layer 10C.

The first touch electrode Tx and the second touch electrode Rx are located on the first conductive layer 10A.

In an exemplary embodiment, referring to fig. 14, the first touch channel 1 includes a third connection portion B3, and any two adjacent first touch electrodes Tx are electrically connected to each other through the third connection portion B3 along the first direction X. The second touch channel 2 further includes a fourth connection portion B4, and any two adjacent second touch electrodes Rx are electrically connected through the fourth connection portion B4 along the second direction Y. The third connection portion B3 intersects the fourth connection portion B4.

At the crossing position of the third connection portion B3 and the fourth connection portion B4, the third connection portion B3 and the fourth connection portion B4 are separated by the insulating layer 10B, so that the touch electrodes in the same touch channel are electrically connected, and the problem of crosstalk of touch signals transmitted on the first touch electrode Tx and the second touch electrode Rx due to electrical conduction at the crossing position is avoided.

Illustratively, as shown in fig. 15, the third connection portion B3 is located on the first conductive layer 10A, and the fourth connection portion B4 is located on the second conductive layer 10C.

The third connection portion B3 is integrally disposed with the first touch electrode Tx. The insulating layer 10B is provided with a via hole H, and the fourth connecting portion B4 is electrically connected to the second touch electrode Rx through the via hole H.

Illustratively, the third connection portion B3 may also be located on the second conductive layer 10C, and correspondingly the fourth connection portion B4 is located on the first conductive layer 10A.

The fourth connecting portion B4 is integrally disposed with the second touch electrode Rx. The insulating layer 10B is provided with a via hole H, and the third connecting portion B3 is electrically connected to the first touch electrode Tx through the via hole H.

As shown in fig. 10, 11 and 12, the number of the connection structures formed by the third connection portion B3 and the fourth connection portion B4 in the touch structure 10 is larger than that in the related art, so that the resistance of the touch structure 10 can be effectively reduced.

In an exemplary embodiment, referring to fig. 19, the first touch channel 1 includes a plurality of first connection portions B1, and two adjacent first touch electrodes Tx in the second direction Y in the same first touch channel 1 are electrically connected through the first connection portions B1. The second touch channel 2 further includes a second connection portion B2, and two adjacent second touch electrodes Rx along the first direction X in the same second touch channel 2 are electrically connected through the second connection portion B2.

Referring to fig. 19, at least one first connection portion B1 and at least one second connection portion B2 intersect.

At the crossing position of the first connection portion B1 and the second connection portion B2, the first connection portion B1 and the second connection portion B2 are separated by the insulating layer 10B, so that the touch electrodes in the same touch channel are electrically connected, and the problem of crosstalk of touch signals transmitted on the first touch electrode Tx and the second touch electrode Rx due to electrical conduction at the crossing position is avoided.

Exemplarily, as shown in fig. 20, the first connection portion B1 is located on the first conductive layer 10A, and the second connection portion B2 is located on the second conductive layer 10C.

The first connection portion B1 is integrally disposed with the first touch electrode Tx. The insulating layer 10B is provided with a via hole H, and the second connecting portion B2 is electrically connected to the second touch electrode Rx through the via hole H.

Exemplarily, the first connection portion B1 may also be located on the second conductive layer 10C, and correspondingly, the second connection portion B2 is located on the first conductive layer 10A.

The second connecting portion B2 and the second touch electrode Rx are integrally disposed. The insulating layer 10B is provided with a via hole H, and the first connection portion B1 is electrically connected to the first touch electrode Tx through the via hole H.

Referring to fig. 10, 11 and 12, the number of the connection structures formed by the first connection portion B1 and the second connection portion B2 in the touch structure 10 is larger than that in the related art, so that the resistance of the touch structure 10 can be effectively reduced.

For example, at a position where there is no intersection between the first connection portion B1 and the second connection portion B2, the first connection portion B1 may be disposed on any one of the first conductive layer 10A or the second conductive layer 10C, and the second connection portion B2 may be disposed on any one of the first conductive layer 10A or the second conductive layer 10C.

For example, the first conductive layer 10A may be disposed close to the light emitting substrate or may be disposed far from the light emitting substrate, relative to the second conductive layer 10C, which is not limited in the embodiment of the present disclosure.

In some embodiments, as shown in fig. 10 to 12, each of the first touch electrode Tx and the second touch electrode Rx is substantially a diamond electrode. That is, the first touch electrode Tx and the second touch electrode Rx are substantially diamond-shaped.

Illustratively, two diagonal lines of the diamond-shaped touch electrodes (including the first touch electrode Tx and the second touch electrode Rx) extend along the first direction X and the second direction Y, respectively.

Illustratively, four sides of the at least one first touch electrode Tx are respectively adjacent to and parallel to sides of the four second touch electrodes Rx.

The first touch channel 1 is located in a first rectangular area extending along a first direction X, and the second touch channel 2 is located in a second rectangular area extending along a second direction Y.

It should be noted that the "first rectangular area" is an area where the first touch electrode Tx is located in the first touch channel 1, and specifically, the first rectangular area is a rectangular area capable of covering all the first touch electrodes Tx in the same first touch channel 1 with the smallest area. The "second rectangular region" is a region where the second touch electrode Rx in the second touch channel 2 is located, and specifically, the second rectangular region is a rectangular region capable of covering all the second touch electrodes Rx in the same second touch channel 2 with the smallest area.

As shown in fig. 10 to 12, a rectangular region where the first rectangular region and the second rectangular region intersect is a touch unit region J.

It should be noted that the touch unit area J is a touch point of the touch structure 10, and when a finger touches the touch unit area J, a change in mutual capacitance occurs in the touch electrodes, so that a touch position of the finger is detected, and a touch effect of the touch structure 10 is achieved.

Illustratively, the touch structure 10 includes a plurality of touch unit areas J distributed in an array along a first direction X and a second direction Y.

Illustratively, the plurality of first touch electrodes Tx in each touch cell area J transmit the same touch signal, and the plurality of second touch electrodes Rx in each touch cell area J transmit the same touch signal.

In the exemplary embodiment, as shown in fig. 10 to 12, the third connection portion B3 and the fourth connection portion B4 intersect to form the first connection structure M1. At least two first connecting structures M1 are disposed in the touch cell region J.

For example, as shown in fig. 10, one first touch channel 1 includes two adjacent first sub-touch channels 1a, and one second touch channel 2 includes one second sub-touch channel 2a. The touch unit area J includes two first connection structures M1 arranged along the second direction Y.

For example, as shown in fig. 11, a first touch channel 1 includes a first sub-touch channel 1a, and a second touch channel 2 includes two adjacent second sub-touch channels 2a. The touch unit area J includes two first connection structures M1 arranged along a first direction X.

Exemplarily, as shown in fig. 12, one first touch channel 1 includes two adjacent first sub-touch channels 1a, and one second touch channel 2 includes two adjacent second sub-touch channels 2a. The touch unit area J includes four first connection structures M1 distributed in an array along a first direction X and a second direction Y.

As shown in fig. 16, in the related art, only one first connecting structure M1' is disposed in the touch unit region J ' of the touch structure 10 '.

The larger the number of the first connecting structures M1 is, the more the conductive metal in the touch structure 10 is, the smaller the resistance of the touch structure 10 is.

In the touch structure 10 provided in the embodiment of the present disclosure, a plurality of sub-touch channels (including the first sub-touch channel 1a and the second sub-touch channel 2 a) are disposed in at least one touch channel (including the first touch channel 1 and the second touch channel 2), and in the same touch channel, two adjacent sub-touch channels are electrically connected, so that at least two first connecting structures M1 are disposed in one touch unit area J, thereby increasing the number of conductive metals in the touch structure 10, reducing the overall resistance of the touch structure 10, ensuring that after a part of metal lines GL are removed, and improving the light transmittance of the touch structure 10, the resistance of the touch structure 10 is still maintained in a range that can satisfy a normal touch function, and optimizing the touch effect of the touch structure 10.

In an exemplary embodiment, as shown in fig. 12, one first touch channel 1 includes two adjacent first sub-touch channels 1a, and one second touch channel 2 includes two adjacent second sub-touch channels 2a. The first touch channel 1 includes a first connection portion B1, and the second touch channel 2 includes a second connection portion B2. The first connection portion B1 and the second connection portion B2 intersect to form a second connection structure M2. At least one second connecting structure M2 is disposed in the touch unit area J.

In the touch structure 10 provided in the embodiment of the present disclosure, the plurality of first sub-touch channels 1a are disposed in the first touch channel 1, the plurality of second sub-touch channels 2a are disposed in the second touch channel 2, and the adjacent and corresponding touch electrodes (including the first touch electrode Tx and the second touch electrode Rx) belonging to different sub-touch channels (including the first sub-touch channel 1a and the second sub-touch channel 2 a) are disposed in the same touch channel (including the first touch channel 1 and the second touch channel 2) and electrically connected, so that at least one second connection structure M2 may be disposed in one touch unit area J, thereby further increasing the number of conductive metals in the touch structure 10, reducing the overall resistance of the touch structure 10, ensuring that after a portion of the metal line GL is removed and the light transmittance of the touch structure 10 is increased, the resistance of the touch structure 10 is still maintained within a range that can satisfy a normal touch function, and optimizing the touch effect of the touch structure 10.

In some embodiments, as shown in fig. 10 to 12, the touch unit area J includes at least one first touch electrode Tx; and/or, at least one second touch electrode Rx is included in the touch unit area J.

For example, as shown in fig. 10, the touch unit area J includes a complete second touch electrode Rx, two first connection structures M1 electrically connected to and opposite to the second touch electrode Rx, and two sets of electrode patterns respectively electrically connected to the two first connection structures M1. Each group of electrode patterns includes half of the first touch electrode Tx patterns, half of the second touch electrode Rx patterns, and half of the first touch electrode Tx patterns, which are sequentially disposed around the first connection structure M1.

For example, as shown in fig. 11, the touch unit region J includes a complete first touch electrode Tx, two first connection structures M1 electrically connected to and opposite to the first touch electrode Tx, and two sets of electrode patterns respectively electrically connected to the two first connection structures M1. Each group of electrode patterns includes half second touch electrode Rx patterns, half first touch electrode Tx patterns, and half second touch electrode Rx patterns sequentially arranged around the first connection structure M1.

Exemplarily, the touch unit area J includes two first touch electrodes Tx located in the same first sub-touch channel 1a and disposed adjacently, and two second touch electrodes Rx located in the same second sub-touch channel 2a and disposed adjacently. In the two first touch electrodes Tx, each first touch electrode Tx is disposed adjacent to each of the two second touch electrodes Rx.

For example, as shown in fig. 12, the touch unit area J includes a second connection structure M2, two complete first touch electrodes Tx and two complete second touch electrodes Rx disposed around the second connection structure M2, the two first touch electrodes Tx are disposed opposite to each other, the two second touch electrodes Rx are disposed opposite to each other, four first connection structures M1 disposed around the second connection structure M2, and four sets of electrode patterns electrically connected to the four first connection structures M1, respectively. Each group of electrode patterns includes half of the first touch electrode Tx patterns and half of the second touch electrode Rx patterns sequentially disposed around the first connection structure M1.

In some embodiments, as shown in fig. 6 and 16, the area of the touch electrodes (including the first touch electrode Tx and the second touch electrode Rx) in the touch structure 10 provided in some embodiments of the disclosure (see fig. 6) is approximately 0.25 times the area of the touch electrodes in the related art (see fig. 16), but the area of the touch unit region J in the touch structure 10 provided in some embodiments of the disclosure (see fig. 6) is approximately equal to the area of the touch unit region J' in the related art (see fig. 16). That is, in the touch structure 10 provided by some embodiments of the present disclosure, although the size of the touch electrode is reduced due to the increase of the number of the connection structures (including the first connection structure M1 and the second connection structure M2), the size and the number of the touch unit areas J of the touch structure 10 are substantially kept unchanged, that is, the touch points of the touch structure 10 are kept unchanged. Therefore, the embodiment provided by the disclosure can reduce the resistance of the touch structure 10, improve the touch sensitivity, and optimize the touch effect while substantially maintaining the distribution of the original touch points.

In some embodiments, as shown in fig. 21, the first touch electrode Tx, the second touch electrode Rx, the third connection portion B3, and the fourth connection portion B4 are all metal mesh structures (i.e., include a plurality of metal meshes G). In the case that the first touch channel 1 includes the first connection portion B1, and/or the second touch channel 2 includes the second connection portion B2, the first connection portion B1 and/or the second connection portion B2 are/is a metal mesh structure.

That is, the first touch electrode Tx, the second touch electrode Rx, the first connection portion B1, the second connection portion B2, the third connection portion B3, and the fourth connection portion B4 may include a plurality of metal lines GL, and the plurality of metal lines GL cross each other to form the metal grid G. Therefore, under the condition that the touch signal is ensured to be smoothly conducted, the light transmittance of the touch structure 10 can be improved through the metal grid G, and the display effect of the display device 1000 is improved.

In some embodiments, as shown in fig. 22, a plurality of metal lines GL are correspondingly disposed between the light-emitting areas K' of at least one pair of adjacent sub-pixels P, and the metal lines GL are electrically connected to each other.

Illustratively, as shown in fig. 22, two metal lines GL are correspondingly disposed between the light-emitting areas K' of the sub-pixels P disposed adjacently, and the two metal lines GL are electrically connected to each other. That is, the metal lines GL forming the metal mesh G are arranged in a winding manner, and the number of the metal lines GL can be further increased by the winding design without affecting the light emitting effect of the light emitting substrate 20, so as to reduce the resistance of the touch structure 10 and optimize the touch effect.

For example, as shown in fig. 23, at least one of the first connection portion B1, the second connection portion B2, the third connection portion B3, and the fourth connection portion B4 may be arranged with the metal lines GL in a winding manner, so as to further increase the number of the metal lines GL, thereby reducing the resistance of the touch structure 10 and optimizing the touch effect.

In some embodiments, as shown in fig. 24, the metal line GL of at least one of the first touch electrode Tx, the second touch electrode Rx, the first connection portion B1, the second connection portion B2, the third connection portion B3, and the fourth connection portion B4 may adopt a double-layer structure.

For example, referring to fig. 24, the first touch electrode Tx and the second touch electrode Rx have a double-layer structure, that is, the first touch electrode Tx and the second touch electrode Rx each include a first conductive line X1 and a second conductive line X2, the first conductive line X1 and the second conductive line X2 are respectively disposed on the first conductive layer 10A and the second conductive layer 10C, the first conductive line X1 and the second conductive line X2 are overlapped, and the first conductive line X1 and the second conductive line X2 are electrically connected through a via hole Hx penetrating through the insulating layer 10B.

By arranging the metal lines GL of the double-layer structure, the number of the metal lines GL can be further increased, so that the resistance of the touch structure 10 is reduced, and the touch effect is optimized.

On the basis of the foregoing embodiments, the light transmittance of the touch structure 10 can be improved by different distribution modes of the metal mesh G.

In some embodiments, the light emitting substrate 20 includes a plurality of pixel units S, each including a plurality of sub-pixels P capable of emitting different colors of light.

Illustratively, as shown in fig. 2, 25 and 26, one pixel unit S includes one first subpixel P1, one second subpixel P2 and one third subpixel P3. The plurality of pixel units S are distributed in an array along a first direction X and a second direction Y.

Exemplarily, as shown in fig. 3 and 27, one pixel unit S includes one first sub-pixel P1, two second sub-pixels P2 and one third sub-pixel P3, the two second sub-pixels P2 are sequentially arranged along the first direction X, and the two second sub-pixels P2 are respectively disposed at two sides of a connection line of the first sub-pixel P1 and the third sub-pixel P3. The plurality of pixel units S are arranged in an array in a direction parallel to a diagonal line of the light emitting substrate 20.

Illustratively, as shown in fig. 4 and 28, one pixel unit S includes one first subpixel P1, two second subpixels P2, and one third subpixel P3, the two second subpixels P2 being sequentially arranged along the second direction Y.

Based on the distribution of the pixel units S, the orthographic projection of the light emitting areas K' of the sub-pixels P of the pixel units S on the reference plane N is within the orthographic projection range of the at least one metal grid G on the reference plane N. In addition, in the plurality of sub-pixels P of the pixel unit S, the orthographic projections of the light emitting areas K' of at least two sub-pixels P on the reference plane N are located within the range of the orthographic projection of the same metal grid G on the reference plane N.

That is, one pixel unit S may correspond to at least one metal mesh G, and one metal mesh G of the at least one metal mesh G corresponds to at least two sub-pixels P.

By setting one pixel unit S corresponding to at least one metal grid G, and one metal grid G of the at least one metal grid G corresponding to at least two sub-pixels P, it can be ensured that light of the at least two sub-pixels P can be emitted by one metal grid G, compared with a case where one metal grid G corresponds to one sub-pixel P in the related art, the area of the metal grid G of the touch structure 10 in the touch display structure 100 provided by the embodiment of the disclosure is large, the light transmittance of the touch structure 10 is high, the display effect of the touch display structure 100 can be improved, and meanwhile, the resistance of the touch structure 10 is small, and the light transmittance effect and the touch effect of the touch structure 10 can be simultaneously satisfied.

Exemplarily, in the case that the pixel unit S includes one sub-pixel P capable of emitting red light, one sub-pixel P capable of emitting blue light, and one sub-pixel P capable of emitting green light, the orthogonal projection of the light emitting areas K' of all the sub-pixels P in the pixel unit S on the reference plane N is located within the range of the orthogonal projection of the same metal grid G on the reference plane N.

For example, referring to fig. 25, a plurality of subpixels P are in a Real RGB arrangement. The orthographic projection of the light emitting areas K' of the sub-pixels P of one pixel unit S on the reference plane N is positioned in the orthographic projection range of the same metal grid G on the reference plane N.

That is, three sub-pixels P may be correspondingly disposed in one metal grid G, so as to ensure that light of the three sub-pixels P can be emitted from one metal grid G, and compared with a case where one metal grid G corresponds to one sub-pixel P in the related art, in the touch display structure 100 provided by the embodiment of the disclosure, an area of the metal grid G of the touch structure 10 is larger, and then a light transmittance of the touch structure 10 is higher, so that a display effect of the touch display structure 100 can be improved.

Exemplarily, in the case that the pixel unit S includes one sub-pixel P capable of emitting red light, one sub-pixel P capable of emitting blue light, and one sub-pixel P capable of emitting green light, the orthographic projection of the light emitting region K ' of the sub-pixel P capable of emitting red light on the reference plane N in the pixel unit S is located within the range of the orthographic projection of one metal grid G on the reference plane N, and the orthographic projection of the light emitting region K ' of the sub-pixel P capable of emitting blue light and the orthographic projection of the light emitting region K ' of the sub-pixel P capable of emitting green light on the reference plane are both located within the range of the orthographic projection of the other metal grid G on the reference plane N.

For example, referring to fig. 26, a plurality of subpixels P are in Real RGB arrangement. Orthographic projections of light emitting areas K 'of a plurality of sub-pixels P of one pixel unit S on a reference plane N are located in orthographic projection ranges of two metal grids G on the reference plane N, in the plurality of sub-pixels P of the pixel unit S, orthographic projections of the light emitting areas K' of a first sub-pixel P1 and the light emitting areas K 'of a third sub-pixel P3 on the reference plane N are located in the orthographic projection range of the same metal grid G on the reference plane N, and orthographic projections of the light emitting areas K' of a second sub-pixel P2 on the reference plane N are located in the orthographic projection range of the other metal grid G on the reference plane N.

That is, in two metal grids G corresponding to one pixel unit S, one sub-pixel P (e.g., the second sub-pixel P2) is correspondingly disposed in one metal grid G, and two sub-pixels P (e.g., the first sub-pixel P1 and the third sub-pixel P3) are correspondingly disposed in the other metal grid G. It can be ensured that at least one metal mesh G can be used for emitting light of two sub-pixels P, and compared with the case where one metal mesh G corresponds to one sub-pixel P in the related art, the area of the metal mesh G of the touch structure 10 in the touch display structure 100 provided by the embodiment of the disclosure is larger, and the light transmittance of the touch structure 10 is higher, so that the display effect of the touch display structure 100 can be improved.

The inventor of the present disclosure performs simulation analysis on the touch structure 10 provided in the embodiment of the present disclosure, and the analysis result is as follows:

in the case that each metal mesh G corresponds to one sub-pixel P, the aperture ratio of the touch structure 10 is about 10.8%, or the ratio of the metal lines GL is about 10% to 20%.

In the two metal grids G corresponding to one pixel unit S, one sub-pixel P is correspondingly disposed in one metal grid G, and two sub-pixels P are correspondingly disposed in the other metal grid G, the aperture ratio of the touch structure 10 may reach 15.5%, or the ratio of the metal lines GL is approximately 10% to 15%.

Under the condition that three sub-pixels P are correspondingly disposed on one metal grid G, the aperture ratio of the touch structure 10 may reach 19.2%, or the ratio of the metal lines GL is approximately 5% to 15%.

In a case where more than three sub-pixels P are correspondingly disposed on one metal grid G, the ratio of the metal lines GL of the touch structure 10 is approximately 0% to 5%.

The "aperture ratio of the touch structure 10" is a ratio of an area of the metal mesh G to an entire area of the touch structure 10.

Based on the above analysis results, it can be known that by setting one metal grid G corresponding to at least two sub-pixels P, the light transmittance of the touch structure 10 can be significantly improved, and the display effect of the touch display structure 100 can be effectively improved.

On this basis, in order to more intuitively show the optimization of the display effect of the touch structure 10 on the touch display structure 100, the inventors of the present disclosure performed simulation analysis on the touch display structure 100, and in this simulation analysis, except for the difference in the aperture ratio of the touch structure 10, the conditions of the material, the model, the stacking structure, and the like of other structures of the touch display structure 100, such as the polarizer, the optical cement, or the glass cover plate, are the same. The analytical results were as follows:

in the case that each metal mesh G corresponds to one sub-pixel P, the screen light transmittance of the touch display structure 100 is about 2.0%.

In the two metal grids G corresponding to one pixel unit S, one sub-pixel P is correspondingly disposed in one metal grid G, and two sub-pixels P are correspondingly disposed in the other metal grid G, the light transmittance of the screen of the touch display structure 100 is about 2.9%.

Under the condition that three sub-pixels P are correspondingly disposed on one metal grid G, the light transmittance of the screen of the touch display structure 100 is about 3.6%.

Based on the analysis results, it can be known that by setting one metal grid G corresponding to at least two sub-pixels P, the light transmittance of the screen of the touch display structure 100 is effectively improved, and thus the display effect of the touch display structure 100 is optimized.

Exemplarily, in the case that the pixel unit S includes one sub-pixel P capable of emitting red light, one sub-pixel P capable of emitting blue light, and two sub-pixels P capable of emitting green light, the orthogonal projections of the light emitting areas K' of all the sub-pixels P in the pixel unit S on the reference plane N are located within the range of the orthogonal projection of the same metal grid G on the reference plane N.

For example, referring to fig. 27 and 28, a plurality of subpixels P are in a diamond arrangement or a GGRB arrangement. The orthographic projection of the light emitting areas K' of the sub-pixels P of one pixel unit S on the reference plane N is positioned in the orthographic projection range of one metal grid G on the reference plane N.

That is, four sub-pixels P may be correspondingly disposed in one metal grid G, so as to ensure that light of the four sub-pixels P can be emitted from one metal grid G, and compared with a case where one metal grid G corresponds to one sub-pixel P in the related art, in the touch display structure 100 provided in the embodiment of the disclosure, an area of the metal grid G of the touch structure 10 is larger, and then a light transmittance of the touch structure 10 is higher, so that a display effect of the touch display structure 100 can be improved.

In some embodiments, as shown in fig. 29, the plurality of metal grids G includes a plurality of first sub-grid groups Ga and a plurality of second sub-grid groups Gb, the first sub-grid groups Ga and the second sub-grid groups Gb being alternately arranged; the first subgrid group Ga comprises at least one first subgrid G1 and the second subgrid group Gb comprises at least one second subgrid G2.

Wherein, the orthographic projection of the luminous regions K' of partial sub-pixels P in the plurality of sub-pixels P of the pixel unit S on the reference plane N is positioned in the range of the orthographic projection of the same first sub-grid G1 on the reference plane; the orthographic projection of the light emitting areas K' of all the sub-pixels P in the other pixel unit S on the reference plane N is within the range of the orthographic projection of the same second sub-grid G2 on the reference plane N.

Illustratively, as shown in FIG. 29, the plurality of subpixels P are in a Real-RGB arrangement.

The first sub-grid group Ga and the second sub-grid group Gb are arranged alternately in the first direction X and the second direction Y, the first sub-grid group Ga comprising three first sub-grids G1 and the second sub-grid group Gb comprising one second sub-grid G2.

The three first sub-grids G1 in the same first sub-grid group Ga are all arranged in one-to-one correspondence with the light emitting areas K 'of the three sub-pixels P in the same pixel unit S, and the second sub-grid G2 is arranged in correspondence with the light emitting areas K' of all the sub-pixels P in another pixel unit S.

Illustratively, as shown in fig. 30, the plurality of metal grids G further includes a plurality of third sub-grid groups Gc. The first sub-grid group Ga, the third sub-grid group Gc and the second sub-grid group Gb are arranged alternately. The third subgrid group Gc includes at least one third subgrid G3.

Wherein, the orthographic projection of the luminous regions K' of partial sub-pixels P in the plurality of sub-pixels P of the pixel unit S on the reference plane N is positioned in the range of the orthographic projection of the same first sub-grid G1 on the reference plane; the orthographic projection of the light emitting areas K' of the sub-pixels P on the reference plane N of other parts (except the part of the sub-pixels P) in the sub-pixels P of the pixel unit S is positioned in the range of the orthographic projection of the same third sub-grid G3 on the reference plane; the orthographic projection of the light emitting areas K' of all the sub-pixels P in the other pixel unit S on the reference plane N is within the range of the orthographic projection of the same second sub-grid G2 on the reference plane N.

Illustratively, as shown in FIG. 30, the plurality of subpixels P are in a Real-RGB arrangement.

The first sub-grid group Ga, the third sub-grid group Gc and the second sub-grid group Gb are alternately arranged in the first direction X and the second direction Y. The first subgrid group Ga includes three first subgrids G1, and the three first subgrids G1 are sequentially arranged along the second direction Y; the third subgrid group Gc includes three third subgrids G3, and the three third subgrids G3 are sequentially arranged along the second direction Y; the second subgrid group Gb includes three second subgrids G2, and the three second subgrids G2 are sequentially arranged along the second direction Y.

In the three sub-pixels P of the same pixel unit S, the light emitting region K ' of one sub-pixel P is disposed corresponding to one first sub-grid G1, the light emitting regions K ' of the other two sub-pixels P are disposed corresponding to one third sub-grid G3, and the light emitting regions K ' of all the sub-pixels P in the other pixel unit S are disposed corresponding to one second sub-grid G2.

By alternately arranging the first sub-grid group Ga and the second sub-grid group Gb, or alternately arranging the first sub-grid group Ga, the third sub-grid group Gc and the second sub-grid group Gb, the distribution density of the metal lines GL at different positions can be flexibly controlled, so that the distribution density of the metal lines GL can be adaptively reduced at a position where the light transmittance requirement is high, and the design is more flexible.

For example, more second sub-grids G2 may be disposed at the position of the touch structure 10 corresponding to the optical fingerprint sensor, so as to improve the light transmittance of the touch structure 10 at the position and optimize the sensing sensitivity of the optical fingerprint sensor.

Based on the foregoing embodiment, under the condition that multiple design manners, such as one metal grid G corresponding to one sub-pixel P, one metal grid G corresponding to two sub-pixels P, one metal grid G corresponding to three sub-pixels P, or one metal grid G corresponding to three or more sub-pixels P, are combined with each other, the ratio of the metal lines GL of the touch structure 10 is approximately 0% to 20%.

In some embodiments, the area of the metal grid G may be enlarged by reducing the width of the metal lines GL, so as to improve the light transmittance of the touch structure 10.

In some embodiments, as shown in fig. 22, 23 and 24, the metal line GL may extend along a straight line.

In some embodiments, as shown in fig. 25, the metal line GL may extend in a zigzag line.

In some embodiments, as shown in fig. 22, 23 and 24, the shape of the metal mesh G may be a regular rectangular shape.

In some embodiments, as shown in fig. 25, the shape of the metal mesh G may also be polygonal.

In some embodiments, as shown in fig. 22 to fig. 25, the metal line GL extends along the boundary of the light emitting region K ' of the sub-pixel P, and the metal line GL is located between the light emitting regions K ' of the adjacent sub-pixels P, that is, the metal grid G corresponds to the light emitting region K ' of the sub-pixel P, so as to prevent the metal line GL from blocking the light emitting path of the sub-pixel P, improve the light emitting efficiency of the sub-pixel P, and thereby improve the display effect of the touch display structure 100.

In some embodiments, as shown in fig. 31, the light emitting substrate 20 includes a plurality of first signal lines Q1 extending along the first direction X, and an orthographic projection of the metal line GL on the reference plane N at least partially overlaps with an orthographic projection of at least one first signal line Q1 on the reference plane N.

Illustratively, the orthographic projection of the metal line GL on the reference plane N has a coincidence rate of more than 50% with the orthographic projection of the at least one first signal line Q1 on the reference plane N.

In some embodiments, referring to fig. 5, the light-emitting substrate 20 includes a substrate 21, an active layer 201, a first gate insulating layer 202, a first gate conductive layer 203, a second gate insulating layer 204, a second gate conductive layer 205, an interlayer dielectric layer 206, a first source-drain conductive layer 207, a passivation layer 208, a first planarization layer 209, and a second source-drain conductive layer 210, which are sequentially stacked.

Referring to fig. 31 and 32, a plurality of thin film transistors TFT may be formed in each sub-pixel P by stacking the patterns of the aforementioned plurality of film layers by etching one layer by one layer. For example, referring to fig. 31 and 32, a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, and a seventh transistor T7 may be formed in one sub-pixel P.

Here, the first signal line Q1 may be disposed on at least one of the first gate conductive layer 203 or the second gate conductive layer 205.

Illustratively, as shown in fig. 31, the aforementioned plurality of first signal lines Q1 may include an enable signal line Q11. The orthographic projection of the metal line GL on the reference plane N at least partially overlaps with the orthographic projection of the at least one enable signal line Q11 on the reference plane N.

Referring to fig. 31, the enable signal line Q11 is disposed on the first gate conductive layer 203. The overlapping portion of the enable signal line Q11 and the active layer 201 forms the gate electrode of the fifth transistor T5 and the gate electrode of the sixth transistor T6, thereby supplying enable signals to the fifth transistor T5 and the sixth transistor T6.

Illustratively, as shown in fig. 31, the plurality of first signal lines Q1 may further include a scanning signal line Q12. The orthographic projection of the metal line GL on the reference plane N at least partially overlaps with the orthographic projection of the at least one scanning signal line Q12 on the reference plane N.

Referring to fig. 31, the scanning signal line Q12 is disposed on the first gate conductive layer 203.

As shown in fig. 31, the scanning signal line Q12 may alternatively include a first scanning signal line Q121, a second scanning signal line Q122, and a third scanning signal line Q123.

Wherein, an overlapping portion of the first scan signal line Q121 and the active layer 201 forms a gate electrode of the first transistor T1, thereby supplying a reset signal to the first transistor T1.

An overlapping portion of the second scan signal line Q122 and the active layer 201 forms a gate electrode of the second transistor T2 and a gate electrode of the fourth transistor T4, thereby supplying the first scan signal to the second transistor T2 and the fourth transistor T4.

The overlapping portion of the third scan signal line Q123 and the active layer 201 forms a gate electrode of the seventh transistor T7, thereby supplying the second scan signal to the seventh transistor T7.

An orthogonal projection of the metal line GL on the reference plane N may at least partially overlap an orthogonal projection of at least one of the first scanning signal line Q121, the second scanning signal line Q122, or the third scanning signal line Q123 on the reference plane N. For example, referring to fig. 31, an orthogonal projection of the metal line GL on the reference plane N at least partially overlaps an orthogonal projection of the first scanning signal line Q121 on the reference plane N.

Illustratively, as shown in fig. 32, the plurality of first signal lines Q1 may further include an initialization signal line Q13. The orthographic projection of the metal line GL on the reference plane N at least partially overlaps with the orthographic projection of the at least one initialization signal line Q13 on the reference plane N.

Referring to fig. 32, the initialization signal line Q13 is disposed on the second gate conductive layer 205.

As shown in fig. 32, the initialization signal line Q13 may alternatively include a first initialization signal line Q131 and a second initialization signal line Q132.

The first initialization signal line Q131 is electrically connected to the first transistor T1, and provides a first initialization signal to the first transistor T1.

The second initialization signal line Q132 is configured to be electrically connected to the seventh transistor T7 and supplies a second initialization signal to the seventh transistor T7.

An orthogonal projection of the metal line GL on the reference plane N may at least partially overlap an orthogonal projection of at least one of the first initialization signal line Q131 or the second initialization signal line Q132 on the reference plane N. For example, referring to fig. 32, the orthographic projection of the metal line GL on the reference plane N at least partially overlaps the orthographic projection of the second initialization signal line Q132 on the reference plane N.

By setting the orthographic projection of the metal line GL on the reference surface N to be at least partially overlapped with the orthographic projection of the at least one first signal line Q1 on the reference surface N, the position of the metal line GL extending along the first direction X in the touch structure 10 can be limited by the first signal line Q1 in the light-emitting substrate 20, so that the metal line GL extending along the first direction X is prevented from blocking a light-emitting path of the sub-pixel P, the light-emitting efficiency of the sub-pixel P is improved, and the display effect of the touch display structure 100 is improved.

Especially, in an embodiment where the touch display structure 100 is provided with an optical device under a screen, for example, an optical fingerprint sensor under a screen, after a finger touches the screen, the reflected light of the finger needs to sequentially pass through the touch structure 10 and the light-emitting substrate 20, so as to transmit the fingerprint information to the optical fingerprint sensor located on a side of the light-emitting substrate 20 away from the touch structure 10, thereby implementing fingerprint detection.

Through the region that is equipped with optical device under the screen, set up the orthographic projection of metal line GL on reference surface N, at least partial overlap with the orthographic projection of at least one first signal line Q1 on reference surface N, can reduce in the region that is equipped with optical device under the screen, the distribution density of walking the line (including metal line GL and first signal line Q1) that extends along first direction X, the transmission path of walking the line and sheltering from the reverberation of avoiding extending along first direction X, effectively improve the light transmissivity in the region that is equipped with optical device under the screen, thereby improve optical device's realization effect.

In some embodiments, as shown in fig. 31 and 32, the light emitting substrate 20 further includes a plurality of second signal lines Q2 extending along the second direction Y, and an orthographic projection of the metal line GL on the reference plane N at least partially overlaps with an orthographic projection of at least one of the second signal lines Q2 on the reference plane N.

Illustratively, the orthographic projection of the metal line GL on the reference plane N has a coincidence rate of more than 50% with the orthographic projection of the at least one second signal line Q2 on the reference plane N.

In some embodiments, the second signal line Q2 may be disposed on at least one of the first source-drain conductive layer 207 or the second source-drain conductive layer 210.

Illustratively, referring to fig. 31, the aforementioned plurality of second signal lines Q2 includes the power supply signal line Q21. The power signal line Q21 is provided in the second source-drain conductive layer 210.

The power supply signal line Q21 extends in the second direction Y, and is configured to supply a power supply signal to the subpixel P, thereby achieving light emission control of the subpixel P.

Referring to fig. 31, an orthographic projection of the metal line GL on the reference plane N at least partially overlaps an orthographic projection of the power signal line Q21 on the reference plane N.

Illustratively, referring to fig. 32, the aforementioned plurality of second signal lines Q2 includes a data signal line Q22. The data signal line Q22 is provided on the second source-drain conductive layer 210.

The data signal line Q22 extends in the second direction Y, and is configured to supply a data signal to the sub-pixel P, thereby achieving light emission control of the sub-pixel P.

Referring to fig. 32, the orthographic projection of the metal line GL on the reference plane N at least partially overlaps the orthographic projection of the data signal line Q22 on the reference plane N.

By setting the orthographic projection of the metal line GL on the reference surface N to be at least partially overlapped with the orthographic projection of the at least one second signal line Q2 on the reference surface N, the position of the metal line GL extending along the second direction Y in the touch structure 10 can be limited by the second signal line Q2 in the light-emitting substrate 20, so that the metal line GL extending along the second direction Y is prevented from blocking the light-emitting path of the sub-pixel P, the light-emitting efficiency of the sub-pixel P is improved, and the display effect of the touch display structure 100 is improved.

Especially in the embodiment where the touch display structure 100 is provided with an off-screen optical device, for example, an off-screen optical fingerprint sensor, by setting the orthographic projection of the metal line GL on the reference surface N to at least partially overlap with the orthographic projection of the at least one second signal line Q2 on the reference surface N in the area where the off-screen optical device is provided, the distribution density of the routing lines (including the metal line GL and the second signal line Q2) extending along the second direction Y in the area where the off-screen optical device is provided can be reduced, so as to avoid the routing lines extending along the second direction Y from blocking the transmission path of the reflected light, effectively improve the light transmittance of the area where the off-screen optical device is provided, and thus improve the implementation effect of the optical device.

In some embodiments, as shown in fig. 31 and 32, an orthographic projection of the metal line GL extending in the first direction X on the reference plane N at least partially overlaps with an orthographic projection of the at least one first signal line Q1 on the reference plane N, and an orthographic projection of the metal line GL extending in the second direction Y on the reference plane N at least partially overlaps with an orthographic projection of the at least one second signal line Q2 on the reference plane N.

By arranging the orthographic projection of the metal line GL extending along the first direction X on the reference surface N to at least partially overlap with the orthographic projection of the at least one second signal line Q2 on the reference surface N, and the orthographic projection of the metal line GL extending along the second direction Y on the reference surface N to at least partially overlap with the orthographic projection of the at least one second signal line Q2 on the reference surface N, that is, the metal line GL of the metal mesh G overlaps with the signal line (including the first signal line Q1 and the second signal line Q2) in the light-emitting substrate 20, the position of the metal mesh G in the touch structure 10 can be defined by the signal line in the light-emitting substrate 20, so that the metal mesh G is prevented from blocking the light-emitting path of the sub-pixel P, the light-emitting efficiency of the sub-pixel P is improved, and the display effect of the touch display structure 100 is improved.

Particularly, in an embodiment where the touch display structure 100 is provided with an off-screen optical device, for example, an off-screen optical fingerprint sensor, by providing an orthographic projection of the metal line GL extending along the first direction X on the reference surface N, at least partially overlapping with an orthographic projection of the at least one second signal line Q2 on the reference surface N, extending an orthographic projection of the metal line GL on the reference surface N along the second direction Y, and at least partially overlapping with an orthographic projection of the at least one second signal line Q2 on the reference surface N, in an area where the off-screen optical device is provided, the distribution density of the traces (including the metal line GL, the first signal line Q1, and the second signal line Q2) in the area where the off-screen optical device is provided can be reduced, so as to avoid blocking a transmission path of reflected light, and effectively improve the light transmittance of the area where the off-screen optical device is provided, thereby improving the implementation effect of the optical device.

The inventors of the present disclosure have performed an analysis of the touch effect on the touch display structure 100 provided in some embodiments of the present disclosure.

Experimental groups: in the touch structure 10, one metal grid G of the touch structure 10 corresponds to three sub-pixels P, and in the touch structure 10, one first touch channel 1 includes two adjacent first sub-touch channels 1a, and one second touch channel 2 includes two adjacent second sub-touch channels 2a, that is, four first connection structures M1 are disposed in the touch unit area J.

Control group: in the related art, one metal grid of the touch structure corresponds to one sub-pixel, and each touch channel only includes one sub-touch channel.

The analytical results were as follows:

TABLE 1

	Control group	Experimental group	Rate of change
				Initial mutual capacitance value (pF)	1.08	0.91	-15.74％
Touch mutual capacitance value (pF)	1.01	0.80	-20.79％
				Variation of mutual capacity (pF)	0.07	0.11	+57.14％
Ratio of mutual capacitance value variation	6.48％	12.09％
				Self-contained value (pF) of first touch electrode	10.90	10.21	-6.33％
Second touch control electrode self-contained value (pF)	13.35	11.22	-15.96％
				Resistance of the first touch control electrode (omega)	15.51	21.46	+38.36％
Resistance of the second touch electrode (omega)	14.43	21.90	+51.76％

The "initial mutual capacitance value" is the mutual capacitance value of the touch structure 10 when the finger does not touch the screen. The "touch mutual capacitance value" is the mutual capacitance value of the touch structure 10 when a finger touches the screen for touch control. The "change amount of mutual capacitance" is a difference value between the initial mutual capacitance value and the touch mutual capacitance value. The "ratio of the mutual capacitance value variation" is a ratio of the variation of the mutual capacitance value with respect to the initial mutual capacitance value.

The higher the ratio of the mutual capacitance value variation, the stronger the sensing capability of the touch structure 10 when the finger touches the screen, that is, the higher the touch sensitivity of the touch structure 10, the better the touch effect.

As can be seen from table 1, in the touch display structure 100 provided in the embodiment of the disclosure, the resistance of the touch structure 10 is only increased in a small range, and the ratio of the mutual capacitance value variation of the touch structure 10 is increased by nearly one time compared with the touch structure in the related art, that is, the touch sensitivity is greatly increased,

to sum up, the touch display structure 100 provided in the embodiment of the present disclosure can maintain the resistance of the touch structure 10 within a level that can achieve a normal touch effect while improving the light transmittance of the touch structure 10 (that is, one metal grid G corresponds to at least two sub-pixels P), and simultaneously considers both the display effect and the touch effect.

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 should be covered by 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

1. A touch display structure, comprising: the touch control device comprises a light-emitting substrate and a touch control structure arranged on at least one side of the light-emitting substrate;

the touch structure comprises a plurality of first touch channels extending along a first direction and a plurality of second touch channels extending along a second direction, and the first direction and the second direction are mutually crossed; the plurality of first touch channels and the plurality of second touch channels are insulated from each other;

the at least one first touch channel comprises a plurality of adjacent first sub-touch channels, and each first sub-touch channel comprises a plurality of first touch electrodes which are arranged along the first direction and are electrically connected in sequence; in the same first touch channel, two adjacent first sub-touch channels are electrically connected; and/or the presence of a gas in the gas,

the at least one second touch channel comprises a plurality of adjacent second sub-touch channels, and each second sub-touch channel comprises a plurality of second touch electrodes which are arranged along the second direction and are electrically connected in sequence; in the same second touch channel, two adjacent second sub-touch channels are electrically connected;

the touch structure comprises a plurality of metal wires which are mutually crossed to form a plurality of metal grids;

the light emitting substrate includes a plurality of sub-pixels, each of which includes a light emitting region; orthographic projections of the light emitting areas of at least two sub-pixels on a reference surface are positioned in the orthographic projection range of the same metal grid on the reference surface; the reference surface is a plane where the light-emitting substrate is located.

2. The touch display structure according to claim 1, wherein along the second direction, the first touch electrodes in two adjacent first sub-touch channels in the same first touch channel are arranged in a one-to-one correspondence; at least one pair of first touch electrodes arranged correspondingly is electrically connected.

3. The touch display structure of claim 2, wherein the first touch channel further comprises a first connection portion, and at least one pair of the first touch electrodes correspondingly disposed are electrically connected through the first connection portion; the first connection portion extends substantially along the second direction.

4. The touch display structure according to claim 1, wherein along the first direction, the second touch electrodes in two adjacent second sub-touch channels are arranged in a one-to-one correspondence manner in the same second touch channel; at least one pair of correspondingly arranged second touch electrodes are electrically connected.

5. The touch display structure of claim 4, wherein the second touch channel further comprises a second connecting portion, and at least one pair of the correspondingly arranged second touch electrodes are electrically connected through the second connecting portion; the second connecting portion extends substantially in the first direction.

6. The touch display structure of claim 1, wherein the first touch channel comprises a plurality of first connection portions, the second touch channel comprises a plurality of second connection portions, and at least one first connection portion and at least one second connection portion intersect.

7. The touch display structure according to claim 6, comprising a first conductive layer, an insulating layer and a second conductive layer, wherein the first conductive layer, the insulating layer and the second conductive layer are stacked, the insulating layer is located between the first conductive layer and the second conductive layer, and a via hole is formed in the insulating layer;

the first touch electrode and the second touch electrode are positioned on the first conductive layer;

the first connecting part is positioned on the first conducting layer, the second connecting part is positioned on the second conducting layer, and the second connecting part is electrically connected with the corresponding second touch electrode through the via hole; or,

8. The touch display structure of claim 1, wherein the first touch channel further comprises a third connecting portion, and any two adjacent first touch electrodes are electrically connected with each other through the third connecting portion along the first direction;

the second touch channel further comprises a fourth connecting portion, and any two adjacent second touch electrodes are electrically connected through the fourth connecting portion along the second direction.

9. The touch display structure of claim 8, wherein the first touch electrode and the second touch electrode are substantially diamond-shaped electrodes;

the first touch channel is located in a first rectangular area extending along the first direction, the second touch channel is located in a second rectangular area extending along the second direction, and the rectangular area where the first rectangular area and the second rectangular area intersect is a touch unit area;

the third connecting part and the fourth connecting part are crossed to form a first connecting structure;

at least two first connecting structures are arranged in the touch unit area.

10. The touch display structure of claim 9, wherein the first touch channel comprises a first connection portion, and the second touch channel comprises a second connection portion; the first connecting part and the second connecting part are crossed to form a second connecting structure;

at least one second connecting structure is arranged in the touch unit area.

11. The touch display structure of claim 10, wherein the touch unit area comprises at least one first touch electrode; and/or at least one second touch electrode is included in the touch unit area.

12. The touch display structure of claim 11, wherein the touch unit region includes two first touch electrodes located in a same first sub-touch channel and disposed adjacently, and two second touch electrodes located in a same second sub-touch channel and disposed adjacently;

each of the two first touch electrodes is adjacent to the two second touch electrodes.

13. The touch display structure of claim 8, wherein the first touch electrode, the second touch electrode, the third connecting portion, and the fourth connecting portion are all formed by a plurality of the metal grids;

in a case where the first touch channel includes a first connection portion, and/or the second touch channel includes a second connection portion, the first connection portion and/or the second connection portion are formed of a plurality of the metal meshes.

14. The touch display structure according to any one of claims 1 to 13, wherein the light-emitting substrate includes a plurality of pixel units, each pixel unit including a plurality of sub-pixels capable of emitting light of different colors;

orthographic projections of light emitting areas of a plurality of sub-pixels of the pixel unit on the reference surface are positioned in an orthographic projection range of at least one metal grid on the reference surface; in addition, in the plurality of sub-pixels of the pixel unit, the orthographic projections of the light emitting areas of at least two sub-pixels on the reference surface are positioned in the orthographic projection range of the same metal grid on the reference surface.

15. The touch-sensitive display structure of claim 14, wherein the pixel unit comprises a sub-pixel capable of emitting red light, a sub-pixel capable of emitting blue light, and two sub-pixels capable of emitting green light;

the orthographic projections of the light emitting areas of all the sub-pixels in the pixel unit on the reference surface are positioned in the range of the orthographic projection of the same metal grid on the reference surface.

16. The touch display structure of claim 15, wherein the plurality of sub-pixels are arranged in a GGRB manner.

17. The touch display structure of claim 14, wherein the pixel unit comprises a sub-pixel capable of emitting red light, a sub-pixel capable of emitting blue light, and a sub-pixel capable of emitting green light;

18. The touch display structure of claim 17, wherein the plurality of sub-pixels are arranged in Real RGB.

19. The touch display structure of claim 14, wherein the plurality of metal grids comprise a plurality of first sub-grid groups and a plurality of second sub-grid groups, and the first sub-grid groups and the second sub-grid groups are alternately arranged; the first subgrid group includes at least one first subgrid and the second subgrid includes at least one second subgrid;

wherein, the orthographic projection of the light emitting areas of the sub-pixels in the plurality of sub-pixels of the pixel unit on the reference plane is within the range of the orthographic projection of the same first sub-grid on the reference plane; the orthographic projections of the light emitting areas of all the sub-pixels in the pixel unit on the reference surface are positioned in the range of the orthographic projection of the same second sub-grid on the reference surface.

20. The touch display structure of claim 1, wherein the metal lines extend linearly, and a metal grid formed by the plurality of metal lines crossing each other is rectangular; and/or the presence of a gas in the gas,

the metal wires extend in a folding line mode, and the metal meshes formed by the plurality of metal wires in an intersecting mode are polygonal.

21. The touch display structure of claim 1, wherein a plurality of metal lines are disposed between the light emitting areas of at least one pair of adjacent sub-pixels, and the metal lines are electrically connected to each other.

22. The touch display structure of claim 1,

the light-emitting substrate comprises a plurality of first signal lines extending along the first direction, and the orthographic projection of the metal lines on the reference surface is at least partially overlapped with the orthographic projection of at least one first signal line on the reference surface; and/or the presence of a gas in the atmosphere,

the light-emitting substrate further comprises a plurality of second signal lines extending along the second direction, and orthographic projections of the metal lines on the reference surface are at least partially overlapped with orthographic projections of at least one second signal line on the reference surface.

23. The touch display structure of claim 22, wherein the first signal line comprises at least one of an enable signal line, a scan signal line, or an initialization signal line;

the second signal line includes at least one of a data line or a power line.

24. A display device, comprising: the touch display structure of any one of claims 1-23.