CN218273359U

CN218273359U - Display device and touch structure

Info

Publication number: CN218273359U
Application number: CN202222101661.6U
Authority: CN
Inventors: 颜俊; 董向丹; 金贤善; 邱海军; 胡明; 何帆; 仝可蒙
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: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-01-10
Anticipated expiration: 2032-08-10

Abstract

The present disclosure relates to the field of display technologies, and in particular, to a display device and a touch structure for optimizing a touch effect of an active pen during touch on the display device. Wherein the display device comprises a first sub-area, a second sub-area, a third sub-area and a fourth sub-area. The display device comprises a plurality of first touch channels, a plurality of second touch channels, a plurality of first touch wires, a plurality of second touch wires, a first touch chip and a second touch chip. At least one first touch channel and at least one second touch channel are arranged in each sub-area. The display device is arranged in a partitioned mode, and the self-capacitance value of the touch electrode is reduced, so that the signal to noise ratio of the active pen in the touch process is effectively improved, and the touch effect of the active pen in the touch process on the display device is optimized.

Description

Display device and touch structure

Technical Field

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

Background

With the continuous development of electronic products, a display device having a touch function and a display function can realize simple and flexible human-computer interaction, and thus 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 display device and a touch structure, and aims to improve various performances of an active pen during touch on the display device, for example, to improve the signal-to-noise ratio of the active pen during touch, optimize the linearity of the active pen, enable the suspension height of the active pen to be substantially uniform during touch at different positions of the display device, and improve the touch accuracy and touch sensitivity of the active pen, so as to improve the adaptability of the active pen to the display device, and optimize the touch effect and use experience of the active pen.

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

in one aspect, a display device is provided, which includes a touch area, and a fan-out area, a first peripheral area, a second peripheral area, and a third peripheral area surrounding the touch area, where the first peripheral area and the second peripheral area are respectively located at two sides of the touch area along a first direction, and the fan-out area and the third peripheral area are respectively located at two sides of the touch area along a second direction. The first direction and the second direction intersect. The touch area comprises a first sub-area, a second sub-area, a third sub-area and a fourth sub-area, the first sub-area and the second sub-area are arranged along the first direction, the first sub-area and the third sub-area are arranged along the second direction, and the third sub-area and the fourth sub-area are arranged along the first direction.

The display device comprises a plurality of first touch channels and a plurality of second touch channels which are arranged in the touch area, a plurality of first touch wires, a plurality of second touch wires, a first touch chip and a second touch chip. Each first touch channel comprises a plurality of first touch electrodes which are arranged along the first direction and are connected in series, and each second touch channel comprises a plurality of second touch electrodes which are arranged along the second direction and are connected in series. At least one first touch channel and at least one second touch channel are arranged in each sub-area, and the at least one first touch channel and the at least one second touch channel are arranged in a crossed mode and are insulated from each other. The first touch channels located in different sub-areas are insulated from each other, and the second touch channels located in different sub-areas are insulated from each other.

The plurality of first touch-control routing lines are electrically connected with the plurality of first touch-control channels. The first touch routing connected with the first touch channel in the first sub-area and the third sub-area extends from the first peripheral area to the fan-out area. The first touch routing connected with the first touch channel in the second sub-area and the fourth sub-area extends from the second peripheral area to the fan-out area. The second touch-control routing lines are electrically connected with the second touch-control channels. And a second touch routing wire connected with a second touch channel in the first sub-area is led out from the third peripheral area and extends to the fan-out area through the first peripheral area. And a second touch routing wire connected with a second touch channel in the second sub-area is led out from the third peripheral area and extends to the fan-out area through the second peripheral area. And a second touch routing wire electrically connected with the second touch channel in the third sub-area and the fourth sub-area directly extends to the fan-out area.

The touch control device comprises a first touch control chip, a second touch control chip, a first touch control routing and a second touch control routing, wherein the first touch control routing is connected with the first touch control channel, the second touch control routing is connected with the second touch control channel, and the first touch control routing and the second touch control routing are electrically connected with the first touch control chip in any two sub-areas. In the other two sub-areas except the any two sub-areas, the first touch routing connected with the first touch channel and the second touch routing connected with the second touch channel are electrically connected with the second touch chip.

The display device is arranged in a partition mode, the area of a single touch channel is reduced, the intensity (namely the size of a self-contained value) of a noise signal at the position of a single touch electrode is reduced, the signal-to-noise ratio of the active pen in the touch process at the position of the touch electrode is improved, the touch effect of the active pen is optimized, the adaptability between the active pen and the display device, particularly the adaptability between the active pen and a large-size display device is enhanced, and the application market of the active pen is widened.

In some embodiments, the dimensions of the first touch channels located in different sub-regions along the first direction are substantially equal; the sizes of the second touch channels in the second direction in different sub-areas are approximately equal.

In some embodiments, the first touch channels located in different sub-regions include equal numbers of first touch electrodes; the number of the second touch electrodes included in the second touch channels located in different sub-areas is equal.

In some embodiments, the centers of two adjacent first touch channels are located in the first sub-area and the second sub-area respectively, and are approximately on the same straight line extending along the first direction, and the centers of two adjacent first touch channels are located in the third sub-area and the fourth sub-area respectively, and are approximately on the same straight line extending along the first direction. The centers of the two adjacent second touch channels are approximately positioned on the same straight line extending along the second direction, and are respectively positioned in the second sub-area and the fourth sub-area, and the centers of the two adjacent second touch channels are approximately positioned on the same straight line extending along the second direction.

In some embodiments, the first touch channels are divided into different sub-regions and are disposed between two adjacent first touch channels along the first direction, and the second touch channels are divided into different sub-regions and are disposed between two adjacent second touch channels along the second direction, and the gaps extend in a zigzag shape.

In some embodiments, the first touch trace connected to the first touch channel in the first sub-area and the second touch trace connected to the second touch channel in the second sub-area are electrically connected to the first touch chip. The first touch routing connected with the first touch channel in the third sub-area and the fourth sub-area and the second touch routing connected with the second touch channel are electrically connected with the second touch chip.

In some embodiments, the first touch chip and the second touch chip are both disposed on a side of the fan-out area away from the third peripheral area. In the second direction, the second touch chip is closer to the fan-out area than the first touch chip.

In some embodiments, the portion of the first touch trace located in the first peripheral region is disposed closer to the touch region than the portion of the second touch trace located in the first peripheral region. Relative to the portion of the second touch trace located in the second peripheral area, the portion of the first touch trace located in the second peripheral area is disposed closer to the touch area.

In some embodiments, the display device further comprises a first dummy electrode. The first virtual electrode is arranged between the adjacent first touch electrode and the second touch electrode and is insulated from the first touch electrode and the second touch electrode. The boundary of the first virtual electrode, which is close to the first touch electrode, and the boundary of the first virtual electrode, which is close to the second touch electrode, are in a zigzag shape, the shapes of the boundaries of the first virtual electrode, which are close to each other, are matched, and the shapes of the boundaries of the first virtual electrode, which are close to each other, are matched.

The first virtual electrode is arranged, and the boundary of the first virtual electrode is matched with the boundary of the touch electrode (including the first touch electrode and the second touch electrode) close to the first virtual electrode, so that the first virtual electrode is approximately filled in the gap between the first touch electrode and the second touch electrode, and the area of the first touch electrode and the area of the second touch electrode are reduced under the condition that the size of the whole screen of the display device is not changed, so that the integral initial mutual capacitance value of the display device can be reduced, the touch sensitivity of the display device is improved, and the touch effect is optimized.

In some embodiments, the first virtual electrode is a centrosymmetric pattern.

In some embodiments, a midpoint of a line connecting a center of a first touch electrode adjacent to the first virtual electrode and a center of a second touch electrode adjacent to the first virtual electrode coincides with the center of the first virtual electrode.

In some embodiments, the first virtual electrode includes a plurality of extension portions connected in sequence, each extension portion having a bar shape; the extending directions of any two adjacent extending parts are crossed.

In some embodiments, the first dummy electrode includes a first extension portion and two second extension portions respectively disposed at two ends of the first extension portion and connected to the first extension portion, the first extension portion extends substantially along the second direction, and the second extension portion extends substantially along the first direction.

In some embodiments, the lengths of the plurality of extensions are substantially equal.

In some embodiments, the first dummy electrode has a strip shape, and widths of the first dummy electrode at different positions are substantially equal along a length extension direction of the first dummy electrode.

In some embodiments, four first virtual electrodes are disposed around the first touch electrode, and the four first virtual electrodes are disposed in central symmetry with respect to the center of the first touch electrode. The four first virtual electrodes are arranged around the second touch electrode and are arranged in central symmetry relative to the center of the second touch electrode.

In some embodiments, each of the first touch electrode and the second touch electrode includes a main body portion, two first protruding portions and two second protruding portions, the main body portion is rectangular, the two first protruding portions are respectively disposed on two sides of the main body portion along the first direction, and the two second protruding portions are respectively disposed on two sides of the main body portion along the second direction; the two first protruding portions and the two second protruding portions are connected with the main body portion respectively.

In some embodiments, the display device further comprises a second virtual electrode. The second virtual electrode is arranged between two adjacent first touch electrodes belonging to different first touch channels and between two adjacent second touch electrodes belonging to different second touch channels; the second virtual electrode is insulated from the first touch electrode and the second touch electrode.

In some embodiments, the second virtual electrode is rectangular.

In some embodiments, the at least one first touch channel comprises a plurality of first sub-channels arranged along the second direction, each first sub-channel extending along the first direction, and the first sub-channels comprise a plurality of first touch electrodes electrically connected; and the plurality of first sub-channels included in the same first touch channel are electrically connected. And/or at least one second touch channel comprises a plurality of second sub-channels, the plurality of second sub-channels are arranged along the first direction, each second sub-channel extends along the second direction, and the second sub-channels comprise a plurality of second touch electrodes which are electrically connected; and a plurality of second sub-channels included in the same second touch channel are electrically connected.

The touch control device comprises a display device, a touch control channel (including a first touch control channel and a second touch control channel), a plurality of sub-touch control channels (including the first sub-channel and the second sub-channel) and a plurality of sub-touch control channels, wherein the sub-touch control channels are arranged in the at least one touch control channel (including the first touch control channel and the second touch control channel) and are electrically connected with each other in the same touch control channel, so that the adaptation degree of the size of a touch control point in the display device and the size of a pen point of an active pen is improved, the accuracy of the active pen is greatly improved, and meanwhile, the touch control function of fingers in the display device is also considered.

In some embodiments, in the same first touch channel, at least one pair of first touch electrodes adjacent to each other along the second direction are electrically connected; and/or at least one pair of second touch electrodes adjacent to each other along the first direction are electrically connected in the same second touch channel.

In some embodiments, the first touch channel further includes a first connection portion, and at least one pair of two first touch electrodes adjacent to each other along the second direction in the same first touch channel are electrically connected through the first connection portion; and/or the second touch channel further comprises a second connecting part, and at least one pair of two second touch electrodes adjacent to each other along the first direction in the same second touch channel are electrically connected through the second connecting part.

In some embodiments, the display device includes a first conductive layer, an insulating layer, and a second conductive layer that are 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 display device includes at least one pair of intersecting first and second connecting portions. 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 the second connecting portion is located on the first conductive layer, the first connecting portion is located on the second conductive 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 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.

A plurality of first electrode groups and a plurality of second electrode groups are arranged in the touch unit area, each first electrode group comprises a plurality of first touch electrodes which are electrically connected in sequence along the first direction, and each second electrode group comprises a plurality of second touch electrodes which are electrically connected in sequence along the second direction; the first electrode components belong to a plurality of first sub-channels of the same first touch channel, and the second electrode components belong to a plurality of second sub-channels of the same second touch channel.

The plurality of first touch electrodes positioned at the same side edge of the touch unit area in the plurality of first electrode groups are a plurality of first setting electrodes, and the plurality of first setting electrodes are connected in series along the second direction. The plurality of second touch control electrodes positioned on the same side edge of the touch control unit area in the plurality of second electrode groups are a plurality of second setting electrodes, and the plurality of second setting electrodes are connected in series along the first direction.

In some embodiments, in a case where the display device further includes a first connection portion and a second connection portion, the plurality of first setting electrodes are connected in series through the first connection portion, and the plurality of second setting electrodes are connected in series through the second connection portion; the first connecting portion and the second connecting portion are arranged on the same conductive layer.

In another aspect, a touch structure is provided, which includes a plurality of first touch channels, a plurality of second touch channels, and a first virtual electrode.

In the plurality of first touch channels, each first touch channel extends along a first direction, each first touch channel comprises a plurality of first touch electrodes which are sequentially arranged along the first direction, and two adjacent first touch electrodes are electrically connected.

Each second touch channel extends along a second direction, each second touch channel comprises a plurality of second touch electrodes which are sequentially arranged along the second direction, and two adjacent second touch electrodes are electrically connected. The first touch channel and the second touch channel are mutually crossed and insulated; the first direction and the second direction intersect with each other.

The first virtual electrode is arranged between the adjacent first touch electrode and the second touch electrode and is insulated from the first touch electrode and the second touch electrode. The boundary of the first virtual electrode, which is close to the first touch electrode, and the boundary of the first virtual electrode, which is close to the second touch electrode, are in a zigzag shape, the shapes of the boundaries of the first virtual electrode, which are close to each other, are matched, and the shapes of the boundaries of the first virtual electrode, which are close to each other, are matched.

The first virtual electrode is arranged, and the boundary of the first virtual electrode is matched with the boundary of the touch electrode (comprising the first touch electrode and the second touch electrode) close to the first virtual electrode, so that the first virtual electrode is approximately filled in a gap between the first touch electrode and the second touch electrode, and therefore, under the condition that the whole screen size of the touch structure is not changed, the areas of the first touch electrode and the second touch electrode are reduced, the integral initial mutual capacitance value of the touch structure can be reduced, the touch sensitivity of the touch structure is improved, and the touch effect is optimized.

Through set up adjacent a plurality of sub-touch-control passageways (including first sub-passageway and second sub-passageway) in at least one touch-control passageway (including first touch-control passageway and second touch-control passageway) to set up and electrically connect between a plurality of sub-touch-control passageways in same touch-control passageway, thereby improved the adaptation degree of the size of the touch-control point in the touch-control structure and the nib size of initiative pen, greatly promoted the degree of accuracy of initiative pen, still considered the touch-control function of finger in the touch-control structure 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 regarded as schematic diagrams, and do not limit the actual size of products, the actual flow of methods, the actual timing of signals, and the like, involved in the embodiments of the present disclosure.

FIG. 1 is a top view of a display device provided in accordance with some embodiments;

FIG. 2 is an exploded view of a display device provided in accordance with some embodiments;

FIG. 3 is a cross-sectional view taken along section line B-B' in FIG. 1;

FIG. 4 is another top view of a display device provided in accordance with some embodiments;

FIG. 5 is an enlarged view of the structure corresponding to the area of the dashed line box C in FIG. 4;

FIG. 6 is an enlarged view of a structure corresponding to the area indicated by the dashed line in FIG. 4;

FIG. 7 is a top view of a touch structure according to some embodiments;

FIG. 8 is an enlarged view of the structure corresponding to the area indicated by the dashed line E in FIG. 6;

FIG. 9 is an enlarged view of another structure corresponding to the area indicated by the dashed line D in FIG. 4;

FIG. 10 is an enlarged view of the structure corresponding to the area indicated by the dashed line F in FIG. 9;

FIG. 11 is an enlarged view of the structure corresponding to the area indicated by the dashed line G in FIG. 9;

FIG. 12 is an enlarged view of the structure corresponding to the area indicated by the dashed line box H in FIG. 9;

FIG. 13 is another top view of a display device provided in accordance with some embodiments;

FIG. 14 is an enlarged view of a structure corresponding to the area indicated by the dashed line box I in FIG. 13;

fig. 15 is an enlarged view of the structure corresponding to the region of the dashed line Q1 in fig. 14;

FIG. 16 is an enlarged view of the structure corresponding to the area of the dashed line box Q2 in FIG. 14;

FIG. 17 is an enlarged view of the structure corresponding to the area of the dashed line box Q3 in FIG. 14;

FIG. 18 is a sectional view taken along section line W-W' in FIG. 17;

fig. 19 is an enlarged view of the structure corresponding to the region of the dashed line frame Q4 in fig. 14;

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

FIG. 21 is an enlarged view of another structure corresponding to the area indicated by the dashed line box I in FIG. 13;

FIG. 22 is an enlarged view of the touch cell area of FIG. 21;

FIG. 23 is a touch point distribution diagram of the touch unit area in FIG. 21;

FIG. 24 is a top view of a touch structure provided in accordance with some embodiments;

fig. 25 is another top view of a touch structure provided in accordance with some embodiments.

Detailed Description

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

Unless the context requires otherwise, throughout the description and the claims, the terms "comprises" and other forms, such as the third person's singular form "comprising" and the present participle form "comprising" are to be construed 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 terms used above 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" and derivatives thereof 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 the following combination of A, B and C: a alone, B alone, C alone, a and B in combination, 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, the exemplary embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of 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.

In some embodiments, as shown in fig. 2, the display device 1000 may include a display panel 100.

The Display panel 100 may be a Liquid Crystal Display (LCD); the display panel 100 may also be an electroluminescent display panel or a photoluminescent display panel. In the case that the display panel 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 where the display panel 100 is a photoluminescent display panel, the photoluminescent display device may be a quantum dot photoluminescent display panel.

The display panel 100 includes a display side and a non-display side, the display side is a side of the display panel 100 that performs light emitting display, and the non-display side is a side of the display panel 100 that is away from the display side.

Illustratively, as shown in fig. 2, the display panel 100 may include a light emitting substrate 20 and a touch structure 10.

In some embodiments, as shown in fig. 2, the display device 1000 may further include a flexible wiring board 200.

The flexible printed circuit board 200 is configured to be bonded to the display panel 100. Referring to fig. 2, the flexible circuit board 200 may be bent along the dotted line L toward the non-display side of the display panel 100, so that the flexible circuit board 200 is located on the back side of the display panel 100.

In some embodiments, as shown in fig. 2, the display device 1000 may further include a touch chip 300.

For example, referring to fig. 2, the touch chip 300 is disposed on the flexible circuit board 200. The touch chip 300 is configured to be electrically connected to a touch structure in the display panel 100, so as to transmit a touch signal to the touch structure, thereby implementing a touch function.

In some embodiments, as shown in fig. 2, the display device 1000 may further include a cover 400 and a polarizer 500 between the cover 400 and the display panel 100.

The polarizer 500 is configured to reduce reflected light after external light is reflected by a metal structure in the display panel 100. Wherein, the polarizer 500 and the cover plate 400 are attached together by an optical adhesive.

As shown in fig. 2, the cover plate 400 may include a light-transmitting area A1 and a light-shielding area A2. The light-transmitting area A1 may at least partially overlap a display area (an area where light is effectively displayed) of the display panel 100, and light emitted from the display panel 100 may be transmitted through the light-transmitting area A1 of the cover 400 to be emitted to the outside to be viewed by human eyes. The light-shielding region A2 may be disposed at the periphery of the light-transmitting region A1, and may at least partially overlap with a peripheral region (disposed around the display region) of the display panel 100, which may effectively display traces of the display panel 100 in the peripheral region.

In some embodiments, the display device 1000 may further include a rear case. Illustratively, the rear case may be a U-shaped groove, and the rear case and the cover 400 are coupled to form a frame of the display device 1000, in which the aforementioned components such as the display panel 100, the bent flexible circuit board 200, and the like are disposed.

In some embodiments provided in the present disclosure, as shown in fig. 2 and fig. 3, the aforementioned display panel 100 includes a touch structure 10 and a light emitting substrate 20.

Referring to fig. 2, the light-emitting substrate 20 includes a plurality of sub-pixels P, and the light-emitting substrate 20 is configured to implement a light-emitting display.

Referring to fig. 3, the light-emitting substrate 20 includes a substrate 21, and a pixel circuit layer 22 and a light-emitting device layer 23 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-drain conductive layer may have only one layer (e.g., only the first source-drain conductive layer 207 or only the second source-drain conductive layer 210), and accordingly, the planarization layer may 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 capacitance 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 capacitance structures Cst are exemplarily shown in fig. 3.

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. Each sub-pixel P includes one light emitting device L. The light emitting device L includes an anode L4 at the anode layer 301, a cathode L5 at the cathode layer 304, and a light emitting pattern L3 at the light emitting function layer 303.

Here, the anode L4 at the anode layer 301 is configured to transmit a high level voltage (e.g., a power voltage signal VDD), and the cathode L5 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 the influence of an electric field formed by the anode L4 and the cathode L5.

Illustratively, the light emission function layer 303 may 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 L4 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.

Illustratively, as shown in fig. 3, the pixel defining layer 302 is formed with a plurality of openings K, the light emitting pattern L3 is at least partially located in the openings K, and light emitted from the light emitting pattern L3 is emitted to the outside through the openings K.

For example, as shown in fig. 3, a supporting layer 305 may be further disposed between the pixel defining layer 302 and the cathode layer 304, and the supporting layer 305 may function as a protective film layer 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. 3, 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 arrangement in 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 sub-layer and the third packaging sub-layer have the functions of blocking water vapor and oxygen, and the second packaging sub-layer has certain flexibility, the function of absorbing water vapor and the like.

The light-emitting substrate 20 has a light-emitting side and a backlight side, the light-emitting side is a side of the light-emitting substrate 20 emitting light, and the backlight side is a side of the light-emitting substrate 20 away from the light-emitting side.

Referring to fig. 3, the touch structure 10 is disposed on the light emitting side of the light emitting substrate 20.

The touch structure 10 may be configured to sense a touch of a user and acquire touch information, for example, sense a touch of a finger or a stylus of the user and acquire touch coordinate information, thereby implementing a touch function of the display panel 100.

In some embodiments, the touch structure 10 may be formed as a separate element, and the touch structure 10 is adhered to the encapsulation layer 24 of the light emitting substrate 20 using an adhesive layer. In the case where the touch structure 10 forms a separate element (e.g., a separate film layer), the touch structure 10 may further include a carrier film for carrying the touch electrode.

Illustratively, the carrier film may be at least one of a resin film, a glass substrate, and a composite film.

Illustratively, the Adhesive layer may be at least one of a Pressure Sensitive Adhesive (PSA), an Optically Clear Adhesive (OCA), and an Optically Clear Resin (OCR).

In other embodiments, referring to fig. 3, the touch structure 10 may be directly disposed on the light emitting substrate 20, for example, directly disposed on the encapsulation layer 24 of the light emitting substrate 20, that is, no other film layer is disposed between the touch structure 10 and the encapsulation layer 24. For example, the touch structure 10 may be formed on the encapsulation layer 24 of the light-emitting substrate 20 through a continuous process, that is, the touch structure 10 may be directly formed above the encapsulation layer 24 after the encapsulation layer 24 is formed on the light-emitting substrate 20, which is beneficial to manufacturing a lighter and thinner display device 1000, and has a better application prospect.

The touch structure 10 can be touched by a finger, and can also be touched by a stylus.

The stylus pen may include an active capacitive pen (i.e., an active pen) and a passive capacitive pen (i.e., a passive pen).

The passive pen is similar to a finger, and changes the capacitance of the touch structure 10 at the contact position by contacting the touch structure 10, thereby achieving the same touch effect as the finger.

The active pen is internally provided with a circuit, and the touch structure 10 receives a signal transmitted by the active pen, so that the coordinate of the active pen on the display screen is known, and the touch effect is realized. The active pen need not be in direct contact with the touch structure 10, i.e. the active pen may enable floating touch.

Compared with a passive pen, the active pen has both a suspension touch function (the display screen can be prevented from being damaged by the touch pen) and a switch control function (the active pen can be closed when not in use, and the false touch is prevented), and has a wide application scene.

With the development of touch display technology, higher requirements are placed on various performances of the active pen. The performance of the active pen may include accuracy, linearity, signal-to-noise ratio, and hover height, among others.

Wherein, the higher the accuracy, the more accurate the touch position of the active pen. The higher the linearity, the more delicate the lines drawn by the active pen on the touch structure 10, and the lower the possibility of the lines shaking. The higher the signal-to-noise ratio is, the higher the ratio of the signal sent by the active pen self-contained circuit to the environmental noise signal is, the more the proportion of the effective signal sent by the active pen for realizing touch control is, the lower the interference of the environmental noise signal to the touch control is, and the better the touch control effect is. The higher the hover height, and the more uniform the hover height at different touch locations, the better the active pen experience.

In some embodiments, referring to fig. 3, after the touch structure 10 is laid on the light emitting side of the light emitting substrate 20, the touch structure 10 and the conductive structure in the light emitting substrate 20 have a facing area, which is easy to generate parasitic capacitance.

For example, referring to fig. 3, the cathode layer 304 is of a full layer design. The touch structure 10 and the cathode layer 304 have a facing area, when a current flows through the touch structure 10, a parasitic capacitance (i.e., a noise signal) is generated between the touch structure 10 and the cathode layer 304, and the larger the value of the parasitic capacitance is, the larger the interference to a signal sent by an active pen for touch control is, i.e., the signal-to-noise ratio of the active pen is relatively low, and the signal sent by the active pen cannot be separated from the noise signal by a touch chip through filtering, so that the working performance of the active pen is poor.

In order to solve the above problem, an embodiment of the present disclosure provides a display device 1000.

As shown in fig. 4, the touch structure 10 of the display device 1000 includes a touch region S5, and a fan-out region S4, a first peripheral region S1, a second peripheral region S2 and a third peripheral region S3 surrounding the touch region S5.

Referring to fig. 4, the first peripheral area S1 and the second peripheral area S2 are respectively located at two sides of the touch area S5 along the first direction X, and the fan-out area S4 and the third peripheral area S3 are respectively located at two sides of the touch area S5 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.

The fan-out area S4, the first peripheral area S1, the second peripheral area S2, and the third peripheral area S3 surrounding the touch area S5 are configured to route a plurality of touch traces (including the first touch trace L1 and the second touch trace L2 shown in fig. 4). The fan-out region S4 is further configured to be bound and connected with the flexible printed circuit board 200, a plurality of touch traces in the display device 1000 finally extend to the fan-out region S4 and are exposed in the fan-out region S4, and the exposed portions are used as pins to be bound with the flexible printed circuit board 200, so that the plurality of touch traces are electrically connected with the touch chip 300 on the flexible printed circuit board 200, and a touch function of the display device 1000 is realized.

Referring to fig. 4, the touch region S5 is configured to dispose a plurality of touch electrodes (including the first touch electrode Tx and the second touch electrode Rx shown in fig. 4), that is, the touch region S5 is an effective touch region of the touch structure 10 of the display device 1000.

The touch area S5 includes a first sub-area S51, a second sub-area S52, a third sub-area S53 and a fourth sub-area S54.

The first sub-area S51 and the second sub-area S52 are arranged along the first direction X, the first sub-area S51 and the third sub-area S53 are arranged along the second direction Y, and the third sub-area S53 and the fourth sub-area S54 are arranged along the first direction X. That is, the four sub-regions (the first sub-region S51, the second sub-region S52, the third sub-region S53, and the fourth sub-region S54) are arranged in an array along the first direction X and the second direction Y.

Referring to fig. 4, the display device 1000 includes a plurality of first touch channels 1 and a plurality of second touch channels 2.

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 first 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 and transmitting the same second touch signal simultaneously in the touch structure 10.

Each first touch channel 1 includes a plurality of first touch electrodes Tx arranged in series along the first direction X, and each second touch channel 2 includes a plurality of second touch electrodes Rx arranged in series along the second direction Y.

Illustratively, the plurality of first touch channels 1 and the plurality of second touch channels 2 are insulated from each other. And 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 insulated and alternately arranged.

For example, as shown in fig. 4, 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.

Exemplarily, as shown in fig. 5, the touch structure 10 of the display device 1000 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. 5, in the touch structure 10, the touch electrodes (including the first touch electrode Tx and the second touch electrode Rx) adopt a metal mesh structure (i.e., include a plurality of metal meshes G), and compared with forming a planar electrode by using ITO (Indium Tin Oxide) as the touch electrode, the touch electrodes of the metal mesh structure have small resistance and high sensitivity, which 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.

Exemplarily, as shown in fig. 5, 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. 5, 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. 5, the first touch electrode Tx and the second touch electrode Rx have a diamond shape or a substantially diamond shape. The term "substantially diamond" refers to that the shape of the touch electrodes (i.e. the first touch electrode Tx and the second touch electrode Rx) is a diamond shape as a whole, but is not limited to a 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 a diamond shape, 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.

Illustratively, the shape of one metal mesh G may be substantially hexagonal, rectangular or irregular polygonal, depending on the crossing pattern of the metal lines GL.

Referring to fig. 4, each of the sub-regions (the first sub-region S51, the second sub-region S52, the third sub-region S53, and the fourth sub-region S54) has at least one first touch channel 1 and at least one second touch channel 2, and the at least one first touch channel 1 and the at least one second touch channel 2 located in the same sub-region are arranged in a crossed manner and are insulated from each other.

That is, each sub-area is provided with a plurality of first touch electrodes Tx and a plurality of second touch electrodes Rx, and the touch structure 10 of the display device 1000 is divided into four touch screens (i.e. the portions where the four sub-areas of the touch structure 10 are located) corresponding to the four sub-areas.

For example, referring to fig. 4, a plurality of first touch channels 1 and a plurality of second touch channels 2 are disposed in each sub-area, wherein the plurality of first touch channels 1 are arranged along the second direction Y, each first touch channel 1 extends along the first direction X, the plurality of second touch channels 2 are arranged along the first direction X, and each second touch channel 2 extends along the second direction Y.

Referring to fig. 4 and 6, the first touch channels 1 located in different sub-areas are insulated from each other, and the second touch channels 2 located in different sub-areas are insulated from each other.

For example, referring to fig. 6, two adjacent first touch channels 1 located in different sub-regions are disconnected from each other, and two adjacent second touch channels 2 located in different sub-regions are disconnected from each other. That is, different portions of the touch structure 10 corresponding to different sub-areas are insulated from each other, so that the touch structure 10 is divided into four touch screens.

Referring to fig. 4, the display device 1000 further includes a plurality of first touch traces L1 and a plurality of second touch traces L2.

The first touch traces L1 are electrically connected to the first touch channels 1. Exemplarily, the plurality of first touch traces L1 are electrically connected to the plurality of first touch channels 1 in a one-to-one correspondence, that is, one first touch trace L1 is electrically connected to one first touch channel 1. The first touch trace L1 is configured to be electrically connected to the first touch channel 1 so as to transmit a touch signal to the first touch electrode Tx in the first touch channel 1.

The second touch traces L2 are electrically connected to the second touch channels 2. Exemplarily, the plurality of second touch traces L2 are electrically connected to the plurality of second touch channels 2 in a one-to-one correspondence, that is, one second touch trace L2 is electrically connected to one second touch channel 2. The second touch trace L2 is configured to be electrically connected to the second touch channel 2 so as to transmit a touch signal to the second touch electrode Rx in the second touch channel 2.

Referring to fig. 4, the first touch trace L1 connected to the first touch channel 1 in the first sub-area S51 and the third sub-area S53 extends from the first peripheral area S1 to the fan-out area S4.

For example, referring to fig. 4, the first sub-area S51 is closer to the third peripheral area S3 than the third sub-area S53. The first touch routing line L1 electrically connected to the first touch channel 1 in the first sub-area S51 is led out from a portion of the first peripheral area S1 close to the third peripheral area S3, extends to the fan-out area S4 along the first peripheral area S1, and is finally bound and connected to the flexible circuit board 200 through the fan-out area S4; the first touch routing line L1 electrically connected to the first touch channel 1 in the third sub-area S53 is led out from a portion of the first peripheral area S1, which is far away from the third peripheral area S3, extends to the fan-out area S4 along the first peripheral area S1, and is finally bound and connected to the flexible circuit board 200 through the fan-out area S4.

For example, referring to fig. 4, with respect to the portion of the first touch trace L1 connected to the first touch channel 1 in the third sub-area S53 in the first peripheral area S1, the portion of the first touch trace L1 connected to the first touch channel 1 in the first sub-area S51 in the first peripheral area S1 is far away from the touch area S5, so as to avoid the first touch trace L1 connected to the first touch channel 1 in the first sub-area S51 and the first touch trace L1 connected to the first touch channel 1 in the third sub-area S53 intersecting at the first peripheral area S1, thereby optimizing the wiring space.

Referring to fig. 4, the first touch trace L1 connected to the first touch channel 1 in the second sub-area S52 and the fourth sub-area S54 extends from the second peripheral area S2 to the fan-out area S4.

For example, referring to fig. 4, the second sub-region S52 is closer to the third peripheral region S3 than the fourth sub-region S54. The first touch routing line L1 electrically connected to the first touch channel 1 in the second sub-area S52 is led out from a portion of the second peripheral area S2 close to the third peripheral area S3, extends to the fan-out area S4 along the second peripheral area S2, and is finally bound and connected to the flexible circuit board 200 through the fan-out area S4; the first touch trace L1 electrically connected to the first touch channel 1 in the fourth sub-area S54 is led out from a portion of the second peripheral area S2 far away from the third peripheral area S3, extends to the fan-out area S4 along the second peripheral area S2, and is finally bonded to the flexible circuit board 200 through the fan-out area S4.

For example, referring to fig. 4, with respect to the portion of the second peripheral area S2 of the first touch trace L1 connected to the first touch channel 1 in the fourth sub-area S54, the portion of the second peripheral area S2 of the first touch trace L1 connected to the first touch channel 1 in the second sub-area S52 is far away from the touch area S5, so as to avoid the intersection of the second peripheral area S2 of the first touch trace L1 connected to the first touch channel 1 in the second sub-area S52 and the first touch trace L1 connected to the first touch channel 1 in the fourth sub-area S54, thereby optimizing the wiring space.

Referring to fig. 4, the second touch trace L2 connected to the second touch channel 2 in the first sub-area S51 is led out from the third peripheral area S3, extends to the fan-out area S4 through the first peripheral area S1, and is finally bound and connected to the flexible circuit board 200 through the fan-out area S4.

The second touch trace L2 connected to the second touch channel 2 in the second sub-area S52 is led out from the third peripheral area S3, extends to the fan-out area S4 through the second peripheral area S2, and is finally bound and connected to the flexible circuit board 200 through the fan-out area S4.

The second touch trace L2 electrically connected to the second touch channel 2 in the third sub-area S53 and the fourth sub-area S54 directly extends to the fan-out area S4, and is finally bound and connected to the flexible circuit board 200 through the fan-out area S4.

For example, referring to fig. 4, with respect to the portion of the first touch trace L1 connected to the first touch channel 1 in the first peripheral area S1, the portion of the second touch trace L2 connected to the second touch channel 2 in the first sub-area S51 in the first peripheral area S1 is far away from the touch area S5, so as to avoid the intersection of the first touch trace L1 and the second touch trace L2 in the first peripheral area S1, thereby optimizing the wiring space.

For example, referring to fig. 4, with respect to the portion of the first touch trace L1 connected to the first touch channel 1 in the second peripheral area S2, the portion of the second touch trace L2 connected to the second touch channel 2 in the second sub-area S52 in the second peripheral area S2 is far away from the touch area S5, so as to avoid the intersection of the first touch trace L1 and the second touch trace L2 in the second peripheral area S2, thereby optimizing the wiring space.

Referring to fig. 4, the display device 1000 further includes a first touch chip 300A and a second touch chip 300B.

In any two sub-areas, the first touch trace L1 connected to the first touch channel 1 and the second touch trace L2 connected to the second touch channel 2 are electrically connected to the first touch chip 300A. In the other two sub-areas except the arbitrary two sub-areas, the first touch trace L1 connected to the first touch channel 1 and the second touch trace L2 connected to the second touch channel 2 are electrically connected to the second touch chip 300B.

That is, the first touch chip 300A is configured to transmit touch signals to the touch electrodes (including the first touch electrode Tx and the second touch electrode Rx) in any two of the foregoing sub-regions, and the second touch chip 300B is configured to transmit touch signals to the touch electrodes in the remaining two sub-regions.

Note that the aforementioned "any two sub-regions" refers to any two of the first sub-region S51, the second sub-region S52, the third sub-region S53, and the fourth sub-region S54, for example, the first sub-region S51 and the second sub-region S52; the aforementioned "remaining two sub-regions" are, of the first sub-region S51, the second sub-region S52, the third sub-region S53, and the fourth sub-region S54, the remaining two sub-regions other than any of the aforementioned two sub-regions, for example, the third sub-region S53 and the fourth sub-region S54.

For example, in other embodiments, each touch chip (including the first touch chip 300A and the second touch chip 300B) may include at least one socket, each socket corresponds to a touch trace (including the first touch trace L1 and the second touch trace L2) connected to a touch channel (including the first touch channel 1 and the second touch channel 2) in the same sub-area, that is, the sub-areas correspond to the sockets one to one, and different sub-areas correspond to different sockets, so that the touch chip can perform partition control on different sub-areas.

In the related art, as shown in fig. 7, a touch structure 10 'of a display device 1000' is configured as a whole screen, the touch structure 10 'includes a plurality of first touch channels 1' and a plurality of second touch channels 2', the plurality of first touch channels 1' are arranged along a second direction Y ', each first touch channel 1' extends along a first direction X ', the plurality of second touch channels 2' are arranged along the first direction X ', and each second touch channel 2' extends along the second direction Y.

The inventor of the present disclosure finds that, in the touch structure 10' disposed on the whole screen, the area of the touch channel (the first touch channel 1' or the second touch channel 2 ') is large, that is, the facing area between the touch channel and the conductive structure of the light-emitting substrate (for example, the cathode layer 304) is large, and then the parasitic capacitance between the touch channel and the conductive structure of the light-emitting substrate is large, that is, the intensity of the generated noise signal is strong, which easily interferes with the transmission and receiving efficiency of the signal sent by the active pen, and affects the touch performance of the active pen during touch.

Particularly, in a large-sized display device, the larger the size of the display device 1000 is, the larger the area of the touch channel in the touch structure 10' disposed on the whole screen is, the larger the parasitic capacitance between the touch channel and the conductive structure of the light-emitting substrate is, and the stronger the noise signal intensity is, the greater the influence on the touch effect of the active pen is.

The display device 1000 according to the embodiment of the disclosure divides the touch area S5 into the first sub-area S51, the second sub-area S52, the third sub-area S53 and the fourth sub-area S54, and sets the touch channels (including the first touch channel Tx and the second touch channel Rx) in different sub-areas of the four sub-areas to be insulated from each other, so as to divide the touch structure 10 into four touch screens, and the area of each touch screen in the four touch screens is substantially one fourth of the area of the touch structure 10' arranged on the whole screen, and the area of the touch channel in each sub-area is substantially one half of the area of the touch channel arranged on the whole screen, for example, referring to fig. 4, the area of the first touch channel 1 in the first sub-area S51 is substantially one half of the area of the first touch channel 1' in the touch structure 10' arranged on the whole screen (fig. 7).

Through the aforementioned design, on the premise of not reducing the effective touch area of the touch structure 10 and ensuring the touch effect, the area of the touch channel where each touch electrode (the first touch electrode Tx or the second touch electrode Rx) is located, that is, the parasitic capacitance (i.e., the self-capacitance value of the touch electrode) between the touch channel where each touch electrode is located and the conductive structure (e.g., the cathode layer 304) of the light-emitting substrate 20 is reduced, so as to reduce the intensity of the noise signal at the location of each touch electrode, that is, improve the signal-to-noise ratio of the active pen when performing touch at the location of the touch electrode, improve the touch effect of the active pen during touch, enhance the display device 1000, particularly enhance the adaptability of the large-size display device and the active pen, and widen the application market of the active pen, for example, expand the application of the active pen in the large-size display device.

In addition, according to the display device 1000 provided by the embodiment of the disclosure, by arranging the first touch chip 300A and the second touch chip 300B, and arranging the touch channels in any two sub-areas to be electrically connected to the first touch chip 300A, and the touch channels in the remaining two sub-areas to be electrically connected to the second touch chip 300B, the problem that the load of the touch chip is large when one touch chip controls the entire-screen touch structure 10' can be avoided while the effect of reducing the signal-to-noise ratio of the active pen is achieved, that is, the load of a single touch chip (including the first touch chip 300A and the second touch chip 300B) is reduced, and the service life of the display device 1000 is prolonged.

In some embodiments, as shown in fig. 4, the sizes of the first touch channels 1 located in different sub-regions along the first direction X are substantially equal. The sizes of the second touch channels 2 located in different sub-areas along the second direction Y are substantially equal. That is, the lengths of the first touch channels 1 in the four sub-areas are substantially equal, and the lengths of the second touch channels 2 in the four sub-areas are substantially equal.

In some embodiments, as shown in fig. 4, the sizes of the first touch channels 1 in the second direction Y in different sub-regions are substantially equal. The sizes of the second touch channels 2 located in different sub-areas along the first direction X are substantially equal. That is, the widths of the first touch channels 1 in the four sub-areas are substantially equal, and the widths of the second touch channels 2 in the four sub-areas are substantially equal.

By setting the lengths and widths of the touch channels in the different sub-areas to be substantially the same, that is, setting the areas of the touch channels in the different sub-areas to be substantially the same, parasitic capacitances between the touch channels in the different sub-areas and a conductive structure (such as the cathode layer 304) of the light-emitting substrate are substantially the same, so that signal-to-noise ratios of the active pen during touch in the different sub-areas are substantially the same, that is, the floating heights and the touch sensitivities of the active pen in the different sub-areas are substantially uniform, and the touch effect of the display device 1000 is improved.

Exemplarily, as shown in fig. 4, the number of the first touch channels 1 located in different sub-areas is approximately equal. The number of the second touch channels 2 in different sub-areas is substantially equal. The areas of effective touch in the four sub-regions can be ensured to be substantially the same, that is, the areas of the touch channels (including the first touch channel 1 and the second touch channel 2) in the four sub-regions are ensured to be substantially the same, so that the signal-to-noise ratios of the active pen during touch in different sub-regions are substantially the same, that is, the floating heights and the touch sensitivity of the active pen in different sub-regions are substantially uniform, and the touch effect of the display device 1000 is improved.

In some embodiments, as shown in fig. 4, the first touch channels 1 located in different sub-regions include equal numbers of first touch electrodes Tx. The number of the second touch electrodes Rx included in the second touch channels 2 located in different sub-areas is equal.

By setting the number of the touch electrodes (including the first touch electrode Tx and the second touch electrode Rx) in the touch channels (including the first touch channel 1 and the second touch channel 2) in different sub-areas to be substantially equal, so that the areas of the touch channels in different sub-areas are substantially equal, the parasitic capacitances between the touch channels in different sub-areas and the conductive structure (such as the cathode layer 304) of the light-emitting substrate are substantially equal, and thus the signal-to-noise ratios of the active pen when performing touch in different sub-areas are substantially equal, that is, the floating heights and the touch sensitivities of the active pen in different sub-areas are substantially uniform, thereby improving the touch effect of the display device 1000.

For example, on the basis of the foregoing embodiment, the sizes and shapes of the first touch electrodes Tx in the four sub-regions are substantially the same, and the sizes and shapes of the second touch electrodes Rx in the four sub-regions are substantially the same. Therefore, the areas of the touch channels in different sub-areas are approximately the same, the suspension height and the touch sensitivity of the active pen in different sub-areas are approximately uniform, and the touch effect of the display device 1000 is improved.

In some embodiments, as shown in fig. 4, the centers of the two adjacent first touch channels 1 are located in the first sub-area S51 and the second sub-area S52, respectively, and are approximately located on the same straight line (e.g., the straight line La shown in fig. 4) extending along the first direction X, and the centers of the two adjacent first touch channels 1 are located in the third sub-area S53 and the fourth sub-area S54, respectively, and are approximately located on the same straight line extending along the first direction X.

That is, the centers of two first touch channels 1 that belong to different sub-regions and are adjacently disposed along the first direction X may be on the same straight line.

Through the arrangement, in the touch structure 10 divided by the four sub-regions, the plurality of first touch channels 1 are distributed in an array manner in the first direction X and the second direction Y, so that the first touch electrodes Tx are uniformly distributed on the touch structure 10, the touch effects of the touch structure 10 at different positions are substantially the same, and the use experience of the active pen in the touch process is improved.

Exemplarily, referring to fig. 4, the centers of all the first touch electrodes Tx in the two adjacent first touch channels 1 respectively located in the first sub-area S51 and the second sub-area S52 are substantially on the same straight line (e.g., the straight line La shown in fig. 4) extending along the first direction X. Similarly, the centers of all the first touch electrodes Tx in the two adjacent first touch channels 1 are located in the third sub-area S53 and the fourth sub-area S54, respectively, and are approximately on the same straight line extending along the first direction X. The first touch electrodes Tx are further ensured to be uniformly distributed on the touch structure 10, so as to improve the use experience of the active pen in the touch process.

In some embodiments, as shown in fig. 4, the centers of the two adjacent second touch channels 2 are located in the first sub-area S51 and the third sub-area S53, respectively, and are approximately located on the same straight line (the straight line Lb shown in fig. 4) extending along the second direction Y, and the centers of the two adjacent second touch channels 2 are located in the second sub-area S52 and the fourth sub-area S54, respectively, and are approximately located on the same straight line extending along the second direction Y.

That is, the centers of two second touch channels 2 that belong to different sub-regions and are adjacently disposed along the second direction Y may be on the same straight line.

Through the arrangement, in the touch structure 10 divided by the four sub-regions, the plurality of second touch channels 2 are distributed in an array manner in the first direction X and the second direction Y, so that the second touch electrodes Rx are uniformly distributed on the touch structure 10, the touch effects of the touch structure 10 at different positions are substantially the same, and the use experience of the active pen in the touch process is improved.

For example, referring to fig. 4, the centers of all the second touch electrodes Rx in two adjacent second touch channels 2 are located in the first sub-area S51 and the third sub-area S53, respectively, and are approximately located on the same straight line (e.g., the straight line Lb shown in fig. 4) extending along the second direction Y. Similarly, the centers of all the second touch electrodes Rx in the two adjacent second touch channels 2 are located in the second sub-area S52 and the fourth sub-area S54 respectively, and are approximately on the same straight line extending along the second direction Y. Further, it is ensured that the second touch electrodes Rx are uniformly distributed on the touch structure 10, thereby improving the use experience of the active pen in the touch process.

The "center" is a geometric center. For example, the center of the first touch channel 1 is the geometric center of the first touch channel 1, and the center of the first touch electrode Tx is the geometric center of the first touch electrode Tx.

Exemplarily, as shown in fig. 4, two first touch channels 1 belonging to different sub-regions and adjacently disposed along a first direction X are symmetrically disposed, and a symmetry axis thereof extends substantially along a second direction Y; the two second touch channels 2 which are respectively belonging to different sub-areas and are adjacently arranged along the second direction Y are symmetrically arranged, and the symmetry axis extends approximately along the first direction X.

That is, the first touch channels 1 and the second touch channels 2 are controlled to be distributed in an array along the first direction X and the second direction Y, and the shapes, sizes and numbers of the first touch channels 1 located in different sub-areas are controlled to be substantially the same, and the shapes, sizes and numbers of the second touch channels 2 located in different sub-areas are controlled to be substantially the same, so that the first touch electrodes Tx and the second touch electrodes Rx are uniformly distributed in the touch structure 10, and the signal-to-noise ratios at the positions where the touch electrodes (including the first touch electrodes Tx and the second touch electrodes Rx) located in different sub-areas are substantially the same, thereby optimizing the touch performance of the active pen, improving the adaptability of the display device 1000 and the active pen, and improving the touch experience of the display device 1000.

In some embodiments, the touch structure 10 of the display device 1000 is a metal grid structure (see fig. 5 and fig. 8), and after the touch structure 10 is integrally formed, the metal grid G is disconnected at a position where insulation is required, for example, at a boundary between two adjacent sub-regions, specifically, between two first touch channels 1 or between two second touch channels 2 which belong to different sub-regions and are adjacently disposed, so as to divide the touch structure 10 into four touch screens which are insulated from each other.

Illustratively, the different first touch channels 1 and the different second touch channels 2 are insulated from each other (for example, by disconnecting the metal grid G).

Exemplarily, the first touch electrode Tx and the second touch electrode Rx, which are adjacently disposed, are also insulated from each other.

In some embodiments, as shown in fig. 8, a gap (e.g., a path indicated by a dashed line Lc in fig. 8) is formed between two first touch channels 1 that belong to different sub-regions and are adjacently disposed along the first direction X, and a gap is formed between two second touch channels 2 that belong to different sub-regions and are adjacently disposed along the second direction Y, and the gap extends in a zigzag shape.

For example, referring to fig. 8, the gap is formed after the metal grid lines GL between the two first touch channels 1 and between the two second touch channels 2 are broken. Illustratively, the gap is configured such that the two first touch channels 1 and the two second touch channels 2 are insulated from each other.

For example, any position that needs to be disconnected, for example, a gap formed after the metal grid line GL between the adjacent first touch electrode Tx and the second touch electrode Rx is disconnected, extends in a zigzag shape.

Through setting up the clearance for the broken line form for touch structure 10 is divided into four touch-control screens by four sub-districts after, and the demarcation limit between the adjacent sub-districts is comparatively jagged, avoids because carry out the problem that obvious line mark appears between the adjacent sub-district that the subregion leads to through the broken line of long distance straight line, avoids display device 1000 to appear the shadow problem that disappears promptly in the display process, improves display device 1000's display effect.

In some embodiments, as shown in fig. 4, the first touch trace L1 connected to the first touch channel 1 in the first sub-area S51 and the second touch trace L2 connected to the second touch channel 2 in the second sub-area S52 are electrically connected to the first touch chip 300A. That is, the touch traces (including the first touch trace L1 and the second touch trace L2) led out from the first sub-area S51 and the second sub-area S52 are electrically connected to the first touch chip 300A, and the touch screen where the first sub-area S51 and the second sub-area S52 are located realizes touch control through the first touch chip 300A.

The first touch trace L1 connected to the first touch channel 1 in the third sub-area S53 and the fourth sub-area S54 and the second touch trace L2 connected to the second touch channel 2 are electrically connected to the second touch chip 300B. That is, the touch traces (including the first touch trace L1 and the second touch trace L2) led out from the third sub-area S53 and the fourth sub-area S54 are electrically connected to the second touch chip 300B, and the touch screen where the third sub-area S53 and the fourth sub-area S54 are located realizes touch control through the second touch chip 300B.

By setting the first touch chip 300A and the second touch chip 300B to respectively control the touch channels (including the first touch channel 1 and the second touch channel 2) in the two sub-areas, the touch structure 10 divided into four touch screens realizes touch control, and at the same time, the load of a single touch chip can be reduced, and the service life of the display device 1000 can be prolonged.

Based on the foregoing embodiments, in some embodiments, as shown in fig. 4, the first touch chip 300A and the second touch chip 300B are both located on a side of the fan-out area S4 away from the third peripheral area S3, and the second touch chip 300B is closer to the fan-out area S4 than the first touch chip 300A in the second direction Y.

For example, referring to fig. 4, the first touch chip 300A and the second touch chip 300B are disposed on the flexible circuit board 200, and after the flexible circuit board 200 is bound and connected with the display panel 100 and before the flexible circuit board 200 is bent, the first touch chip 300A and the second touch chip 300B are located on a side of the fan-out area S4 away from the third peripheral area S3.

Referring to fig. 4, in the second direction Y, the third sub-area S53 and the fourth sub-area S54 are closer to the fan-out area S4 than the first sub-area S51 and the second sub-area S52, and the second touch chip 300B is closer to the fan-out area S4, so that the touch traces led out from the third sub-area S53 and the fourth sub-area S54 correspondingly and electrically connected to the second touch chip 300B are closer to the touch area S5 than the touch traces led out from the first sub-area S51 and the second sub-area S52 correspondingly and electrically connected to the first touch chip 300A, so that the touch traces led out from the first sub-area S51 and the second sub-area S52 and the touch traces led out from the third sub-area S53 and the fourth sub-area S54 can be prevented from crossing, thereby optimizing the wiring space, reducing the wiring difficulty, and facilitating the thinning of the display device 1000.

It should be noted that the display device 1000 provided in the present disclosure is not limited to the arrangement and connection manner of the touch chips described in the above embodiments, for example, the first touch chip 300A may also be electrically connected to the first touch trace L1 connected to the first touch channel 1 in the first sub-area S51 and the third sub-area S53 and the second touch trace L2 connected to the second touch channel 2, and the second touch chip 300B may also be electrically connected to the first touch trace L1 connected to the first touch channel 1 in the second sub-area S52 and the fourth sub-area S54 and the second touch trace L2 connected to the second touch channel 2.

Exemplarily, under the condition that the first touch chip 300A is electrically connected to the first sub-area S51 and the third sub-area S53 correspondingly, and the second touch chip 300B is electrically connected to the second sub-area S52 and the fourth sub-area S54 correspondingly, the second touch chip 300B is closer to the second peripheral area S2 relative to the first touch chip 300A in the first direction X, so as to avoid the touch traces from crossing each other and optimize the wiring space.

In some embodiments, as shown in fig. 4, relative to the portion of the second touch trace L2 located in the first peripheral region S1, the portion of the first touch trace L1 located in the first peripheral region S1 is disposed closer to the touch region S5; relative to the portion of the second touch trace L2 located in the second peripheral area S2, the portion of the first touch trace L1 located in the second peripheral area S2 is disposed closer to the touch area S5.

Referring to fig. 4, the second touch traces L2 led out from the first sub-area S51 and the second sub-area S52 respectively pass through the first peripheral area S1 and the second peripheral area S2 and finally extend to the fan-out area S4, and by the arrangement, the first touch traces L1 and the second touch traces L2 can be prevented from crossing, so that the wiring space is optimized, and the wiring difficulty is reduced.

In some embodiments, as shown in fig. 9, the display device 1000 further includes a first dummy electrode 3. Illustratively, the touch structure 10 of the display device 1000 includes the first dummy electrode 3 therein.

Referring to fig. 9 and 10, the first dummy electrode 3 is disposed between the first touch electrode Tx and the second touch electrode Rx, and is insulated from the first touch electrode Tx and the second touch electrode Rx.

For example, referring to fig. 10, the first touch electrode Tx, the second touch electrode Rx, and the first dummy electrode 3 are all metal mesh structures.

For example, after the first touch electrode Tx, the second touch electrode Rx and the first dummy electrode 3 are integrally formed, the metal grid lines GL are disconnected at positions where insulation is required, for example, referring to fig. 10, the metal grid lines GL between the first touch electrode Tx and the adjacent first dummy electrode 3 are disconnected, so as to insulate the first touch electrode Tx from the first dummy electrode 3.

Referring to fig. 10, the boundary of the first virtual electrode 3 close to the first touch electrode Tx and the boundary of the first virtual electrode 3 close to the second touch electrode Rx are zigzag-shaped, the shapes of the adjacent boundaries of the first virtual electrode 3 and the first touch electrode Tx are matched, and the shapes of the adjacent boundaries of the first virtual electrode 3 and the second touch electrode Rx are matched.

That is, the shape of the gap between the first touch electrode Tx and the second touch electrode Rx is matched to the shape of the first dummy electrode 3, for example, the first dummy electrode 3 is approximately filled in the gap between the first touch electrode Tx and the second touch electrode Rx.

By arranging the first virtual electrode 3 and arranging the boundary of the first virtual electrode 3 to be matched with the boundary of the touch electrode (including the first touch electrode Tx and the second touch electrode Rx) close to the first virtual electrode 3, the first virtual electrode 3 is approximately filled in the gap between the first touch electrode Tx and the second touch electrode Rx, so that the areas of the first touch electrode Tx and the second touch electrode Rx are reduced under the condition that the whole screen size of the touch structure 10 is not changed, the initial mutual capacitance value of the whole touch structure 10 (the mutual capacitance value of the touch structure 10 when a finger does not touch) can be reduced, the touch sensitivity of the touch structure 10 can be improved, and the touch effect can be optimized. The heat generation amount of the touch structure 10 can be reduced, so as to avoid the display device 1000 from being greatly worn due to temperature variation, for example, avoid ghost point problems occurring in the case that some materials in the display device 1000, such as the polarizer 500, have large temperature variation. In addition, after the area of the touch electrode is reduced, the parasitic capacitance between the touch electrode and the cathode layer 304 can be reduced, so that the signal-to-noise ratio of the active pen is improved, and the touch effect of the active pen is further optimized.

In some embodiments, as shown in fig. 9 and 11, the first dummy electrode 3 is a center symmetrical pattern. That is, the boundary of the first dummy electrode 3 near the first touch electrode Tx and the boundary near the second touch electrode Rx are substantially symmetrical, so that the shapes of the first touch electrode Tx and the second touch electrode Rx are substantially the same, and the arrangement of the touch electrodes in the touch structure 10 is regular.

On the basis of the foregoing embodiments, in some embodiments, as shown in fig. 11, a midpoint of a connection line (see a dotted line Ld in fig. 11) between a center of the first touch electrode Tx adjacent to the first virtual electrode 3 and a center of the second touch electrode Rx adjacent to the first virtual electrode 3 coincides with the center of the first virtual electrode 3. Therefore, the areas of the first touch electrode Tx and the second touch electrode Rx are substantially the same, and the noise signals at different positions of the touch structure 10 are relatively uniform, so that the signal-to-noise ratios of the active pen at different positions in the touch process are substantially the same, and the touch performance of the active pen is optimized, for example, the floating height of the active pen is relatively uniform.

It should be noted that the aforementioned "center" may be a geometric center, for example, the center of the first virtual electrode 3 is the geometric center of the first virtual electrode 3.

Illustratively, the first dummy electrodes 3 are arranged in a central symmetry with their centers as the symmetry centers.

Illustratively, the first touch electrode Tx and the second touch electrode Rx are disposed in a central symmetry manner with the center of the first dummy electrode as a symmetry center.

In some embodiments, as shown in fig. 11, the first dummy electrode 3 includes a plurality of extension portions 3' connected in sequence, each extension portion 3' has a strip shape, and the extension directions of any two adjacent extension portions 3' intersect.

Through setting up a plurality of extension portions 3' of bar to it crosses to set up the extending direction of arbitrary two adjacent extension portions 3', make the whole shape of first virtual electrode 3 be the dogleg, can make the metal grid line GL between first virtual electrode 3 and the touch-control electrode break the back and form comparatively jaggedly border, avoid leading to the problem that appears obvious line mark between first virtual electrode 3 and the touch-control electrode because long distance straight line broken string, avoid display device 1000 to appear the shadow problem promptly in the display process, improve display device 1000's display effect.

In some embodiments, as shown in fig. 11, the first dummy electrode 3 includes a first extending portion 31 and two second extending portions 32 respectively disposed at two ends of the first extending portion 31 and connected to the first extending portion 31, wherein the first extending portion 31 extends substantially along the second direction Y, and the second extending portion 32 extends substantially along the first direction X.

That is, the entire first virtual electrode 3 is substantially in a "Z" shape, and by providing the "Z" shaped first virtual electrode 3, the boundary between the first touch electrode Tx and the second touch electrode Rx is substantially in a "Z" shape, so that it is possible to avoid the display device 1000 from generating a shadow elimination problem during a display process, and also to avoid a situation in which the active pen shakes during a touch process due to an excessive variation in the boundary between the touch electrodes, that is, to simultaneously achieve both an effect of avoiding the shadow elimination problem and an effect of improving the linearity of the active pen.

In some embodiments, the lengths of the plurality of extensions 3' are substantially equal. For example, the size of the first extending portion 31 in the second direction Y is substantially equal to the size of the second extending portion 32 in the first direction X, so that the first virtual electrode 3 is in a regular pattern, the shape of the touch electrode adapted to the first virtual electrode 3 is substantially the same, and the difficulty in manufacturing the touch structure 10 can also be reduced.

In some embodiments, the first dummy electrode 3 has a bar shape, and the widths of the first dummy electrode at different positions along the length extension direction of the first dummy electrode 3 are substantially equal. For example, the size of the first extending portion 31 in the first direction X is substantially equal to the size of the second extending portion 32 in the second direction Y, so that the first virtual electrode 3 is further made to have a regular pattern, the shape of the touch electrode adapted to the first virtual electrode 3 is substantially the same, and the difficulty in manufacturing the touch structure 10 can also be reduced.

In some embodiments, as shown in fig. 9 and 12, four first dummy electrodes 3 are disposed around the first touch electrode Tx, and the four first dummy electrodes 3 are disposed in central symmetry with respect to the center of the first touch electrode Tx. Four first dummy electrodes 3 are disposed around the second touch electrode Rx, and the four first dummy electrodes 3 are disposed in a central symmetry with respect to the center of the second touch electrode Rx.

According to the foregoing embodiment, the shapes and areas of the first touch electrode Tx and the second touch electrode Rx may be substantially the same, so that the noise signals at different positions of the touch structure 10 are substantially the same, and the signal-to-noise ratios of the active pen at different positions of the touch structure 10 during the touch process are substantially the same, which may improve the touch performance of the active pen, for example, make the floating height of the active pen more uniform.

Exemplarily, four first virtual electrodes 3 are disposed around each touch electrode.

In some embodiments, the first touch electrode Tx and the second touch electrode Rx each include a main body portion C3, two first protrusion portions C1, and two second protrusion portions C2.

As shown in fig. 12, the main body portion C3 is rectangular, two first protruding portions C1 are disposed on two sides of the main body portion C3 along the first direction X, and two second protruding portions C2 are disposed on two sides of the main body portion C3 along the second direction Y. The two first convex portions C1 and the two second convex portions C2 are connected to the main body portion C3, respectively.

Illustratively, the boundaries of the main body portion C3, the two first convex portions C1, and the two second convex portions C2 are all smooth straight lines.

Illustratively, the two first bosses C1 are substantially the same size and shape.

Illustratively, the two second bosses C2 are substantially the same size and shape.

Illustratively, the first and second bosses C1, C2 are substantially the same size and shape.

Through the foregoing embodiment, the first touch electrode Tx and the second touch electrode Rx are both substantially in the cross shape, so that the folding angle of the boundary between the first touch electrode Tx and the second touch electrode Rx can be ensured to be small, thereby on one hand, ensuring the linearity of the active pen when performing touch on the display device 1000, and on the other hand, avoiding the shadow elimination problem caused by long-distance linear disconnection of the boundary.

In some embodiments, as shown in fig. 9, the display device 1000 further includes a second dummy electrode 4. Exemplarily, the touch structure 10 of the display device 1000 includes the second dummy electrode 4.

The second dummy electrode 4 is disposed between two adjacent first touch electrodes Tx belonging to different first touch channels 1, and between two adjacent second touch electrodes Rx belonging to different second touch channels 2. The second dummy electrode 4 is insulated from the first touch electrode Tx and the second touch electrode Rx. That is, the second dummy electrode 4 is configured to surround the touch electrode together with the first dummy electrode 3, thereby spacing the first touch electrode Tx and the second touch electrode Rx,

exemplarily, the second dummy electrode 4 may be connected with the first dummy electrode 3.

Exemplarily, the second dummy electrode 4 is in a metal mesh shape.

Illustratively, as shown in fig. 9, the second dummy electrode 4 has a rectangular shape.

On the basis of the above embodiment of dividing the touch structure 10 into four touch screens and the embodiment of providing the first virtual electrode 3 and the second virtual electrode 4, the present disclosure also provides a display device 1000 capable of improving the touch accuracy of the active pen.

In some embodiments, as shown in fig. 13, the at least one first touch channel 1 includes a plurality of first sub-channels 1A, the plurality of first sub-channels 1A are arranged along the second direction Y, each first sub-channel 1A extends along the first direction X, and the first sub-channel 1A includes a plurality of first touch electrodes Tx electrically connected. For example, referring to fig. 13, one first touch channel 1 includes two first sub-channels 1A. For example, referring to fig. 14, one first touch channel 1 includes four first sub-channels 1A.

As shown in fig. 13, the at least one second touch channel 2 includes a plurality of second sub-channels 2A, the plurality of second sub-channels 2A are arranged along the first direction X, each of the second sub-channels 2A extends along the second direction Y, and the second sub-channels 2A include a plurality of electrically connected second touch electrodes Tx. For example, referring to fig. 13, one second touch channel 2 includes two second sub-channels 2A. For example, referring to fig. 14, one second touch channel 2 includes four second sub-channels 2A.

On the basis of the foregoing embodiment, the plurality of first sub-channels 1A included in the same first touch channel 1 are electrically connected. The plurality of second sub-channels 2A included in the same second touch channel 2 are electrically connected.

For example, referring to fig. 14, in the same first touch channel 1, two first touch electrodes Tx belonging to two different and adjacent first sub-channels 1A are electrically connected, so as to achieve the purpose of electrically connecting a plurality of first sub-channels 1A in the same first touch channel 1.

For example, in the same first touch channel 1, two adjacent first sub-channels 1A may be electrically connected to the same touch line M, so as to achieve the purpose of electrically connecting the plurality of first sub-channels 1A in the same first touch channel 1.

For example, referring to fig. 14, in the same second touch channel 2, two second touch electrodes Rx belonging to different and adjacent two second sub-channels 2A are electrically connected, so as to achieve the purpose of electrically connecting a plurality of second sub-channels 2A in the same second touch channel 2.

For example, in the same second touch channel 2, two adjacent second sub-channels 2A may be electrically connected to the same touch line M, so as to achieve the purpose of electrically connecting a plurality of second sub-channels 2A in the same second touch channel 2.

Referring to fig. 14, in the display device 1000 provided in the embodiment of the disclosure, 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 area" is an area where the second touch electrode Rx in the second touch channel 2 is located, and specifically, the second rectangular area is a rectangular area that can include all the second touch electrodes Rx in the same second touch channel 2 and has the smallest area.

Referring to fig. 14, a rectangular region where the first rectangular region and the second rectangular region intersect is a touch unit region J. That is, the touch unit area J is an intersection area of the first touch channel 1 and the second touch channel 2.

Referring to fig. 14, in the touch unit area J, the intersection position of the first sub-channel 1A and the second sub-channel 2A may be a touch point M1.

In the related art, as shown in fig. 7, only one sub-channel (the first sub-channel 1A ' or the second sub-channel 2A ') is disposed in each touch channel (the first touch channel 1' or the second touch channel 2 ') of the display device 1000 '. Referring to fig. 7, a crossing position of a first touch channel 1' and a second touch channel 2' is a touch point M1', and only one crossing position, i.e. only one touch point M1', is located in a touch unit area J ', when a finger touches the touch unit area J ', a change in mutual capacitance occurs in touch electrodes at the crossing position, so that the touch position of the finger is detected, and the touch function of the touch structure 10' is implemented.

In the related art, the size of the touch unit area J ' in the touch structure 10' is adapted to the size of the finger, for example, the area of one touch unit area J ' is approximately 4 × 4mm ² When the touch control is carried out with the finger, the contact area of the finger and the screen is approximately the same, so that the accuracy is higher when the finger is exposed.

However, as a result of research by the inventors of the present disclosure, the tip size of the active pen is small, for example, the tip size of the active pen is approximately one fourth or less of a finger (for example, the tip size of the active pen is 1 mm), when the active pen is applied to the display device 1000 'in the related art, the area of the touch unit region J' is much larger than the tip size of the active pen, the accuracy of the active pen is drastically reduced, and the application of the active pen is not favorable.

In the touch structure 10 provided by the embodiment of the present disclosure, the adjacent multiple sub-touch channels (including the first sub-channel 1A and the second sub-channel 2A) are disposed in at least one touch channel (including the first touch channel 1 and the second touch channel 2), and the multiple sub-touch channels in the same touch channel are electrically connected to each other, so that multiple intersection positions between the multiple first sub-channels 1A and the multiple second sub-channels 2A are included in the touch unit region J, that is, multiple touch points M1 are included in the touch unit region J, so that the area of the touch unit region J in the touch structure 10 is not changed, thereby ensuring the degree of adaptability between finger touch and the display device 1000, and simultaneously dividing multiple touch points M1 adapted to the size of the tip of the active pen in the touch unit region J, thereby greatly improving the accuracy of the active pen, and taking into account the touch function of the active pen in the display device 1000.

In some embodiments, as shown in fig. 14, 15 and 17, in the same first touch channel 1, at least one pair of first touch electrodes Tx adjacent to each other along the second direction Y are electrically connected.

The "at least one pair" is two first touch electrodes Tx that belong to different first sub-channels 1A in the same first touch channel 1 and are adjacently disposed in the second direction Y.

For example, referring to fig. 14, fig. 15 and fig. 17, in the same first touch channel 1, two first touch electrodes Tx belonging to different and adjacent two first sub-channels 1A are electrically connected, so as to achieve the purpose of electrically connecting two adjacent first sub-channels 1A in the same first touch channel 1.

At least one pair of first touch electrodes Tx adjacent to each other in the second direction Y are electrically connected to each other, so that the plurality of first sub-channels 1A in the same first touch channel 1 are electrically connected to each other, and the plurality of first sub-channels 1A in the same first touch channel 1 transmit the same touch signal, thereby avoiding increasing or decreasing the size of the first touch channel 1, avoiding the area of the touch unit region J from changing, and ensuring the degree of adaptation between finger touch and the display device 1000.

In some embodiments, as shown in fig. 14, 16 and 17, at least one pair of adjacent second touch electrodes Rx along the first direction Y in the same second touch channel 2 is electrically connected.

The "at least one pair" is two second touch electrodes Rx that belong to different second sub-channels 2A in the same second touch channel 2 and are disposed adjacent to each other in the first direction X.

For example, referring to fig. 14, in the same second touch channel 2, two second touch electrodes Rx belonging to different and adjacent two second sub-channels 2A are electrically connected, so as to achieve the purpose of electrically connecting two adjacent second sub-channels 2A in the same second touch channel 2.

By providing at least one pair of second touch electrodes Rx adjacent to each other along the first direction X, the second sub-channels 2A in the same second touch channel 2 are electrically connected to each other, so that the second sub-channels 2A in the same second touch channel 2 transmit the same touch signal, the size of the second touch channel 2 is prevented from being increased or decreased, the area of the touch cell region J is prevented from being changed, and the degree of adaptability between finger touch and the display device 1000 is ensured.

In some embodiments, as shown in fig. 14, 15 and 17, the first touch channel 1 further includes a first connection portion B1, and at least one pair of two adjacent first touch electrodes Tx along the second direction Y in the same first touch channel 1 are electrically connected by the first connection portion B1.

Exemplarily, referring to fig. 14, 15 and 17, 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.

By arranging the same first touch channel 1, at least one pair of two adjacent first touch electrodes Tx along the second direction Y are electrically connected through the first connection portion B1, so that the plurality of first sub-channels 1A in the same first touch channel 1 are electrically connected.

In some embodiments, as shown in fig. 14, 16 and 17, the second touch channel 2 further includes a second connection portion B2, and at least one pair of two second touch electrodes Rx adjacent to each other along the first direction X in the same second touch channel 2 is electrically connected to each other through the second connection portion B2.

Exemplarily, referring to fig. 14, 16, and 17, the second connection portion B2 extends substantially in the first direction X.

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

Exemplarily, at least one second connection portion B2 may be included in the same second touch channel 2.

By arranging the same second touch channel 2, at least one pair of two second touch electrodes Rx adjacent to each other along the first direction X are electrically connected through the second connection portion B2, so that the plurality of second sub-channels 2A in the same second touch channel 2 are electrically connected.

In some embodiments, as shown in fig. 18, the display device 1000 includes a first conductive layer 10A, an insulating layer 10B, and a second conductive layer 10C which are stacked.

The insulating layer 10B is located between the first conductive layer 10A and the second conductive layer 10C, and a via hole H is provided in the insulating layer 10B.

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. 19, 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. 20, 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 connecting portion B3 is integrally disposed with the first touch electrode Tx. A via hole H is formed in the insulating layer 10B, 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.

Illustratively, the third connection portion B3 and the fourth connection portion B4 are both of a metal mesh structure.

Comparing fig. 7 and fig. 14, in a touch unit area J of the touch structure 10, the number of the connection structures formed by the third connection portions B3 and the fourth connection portions B4 is larger than that of the connection structures in the related art, that is, the number of the metal grid lines GL is larger, so that the resistance of the touch structure 10 can be effectively reduced.

In an exemplary embodiment, referring to fig. 17, the first touch channel 1 includes a plurality of first connection portions B1, and two adjacent first touch electrodes Tx in the same first touch channel 1 along the second direction Y 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. 17, 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. 18, 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.

Illustratively, 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.

Exemplarily, the first connection portion B1 and the second connection portion B2 are both of a metal mesh structure.

For example, in the touch unit area J of the touch structure 10, the number of the connection structures formed by the first connection portions B1 and the second connection portions B2 is larger than that of the connection structures in the related art, that is, the number of the metal grid lines GL is larger, so that the resistance of the touch structure 10 can be effectively reduced.

In other embodiments, as shown in fig. 21, the first touch channel 1 is located in a first rectangular area extending along the first direction X, the second touch channel 2 is located in a second rectangular area extending along the second direction Y, and the rectangular area where the first rectangular area and the second rectangular area intersect is a touch unit area J.

Referring to fig. 22, a plurality of first electrode groups O1 and a plurality of second electrode groups O2 are disposed in the touch unit area J, each first electrode group O1 includes a plurality of first touch electrodes Tx electrically connected in sequence along the first direction X, and each second electrode group O2 includes a plurality of second touch electrodes Rx electrically connected in sequence along the second direction Y. The first electrode groups O1 belong to a plurality of first sub-channels 1A of the same first touch channel 1, and the second electrode groups O2 belong to a plurality of second sub-channels 2A of the same second touch channel 2.

That is, the first electrode groups O1 are portions of the first sub-channels 1A located in the touch unit area J, and the second electrode groups O2 are portions of the second sub-channels 2A located in the touch unit area J.

Referring to fig. 22, the first touch electrodes Tx located at the same side edge of the touch cell region J in the first electrode groups O1 are first set electrodes O1', and the first set electrodes O1' are connected in series along the second direction Y. The second touch electrodes Rx on the same side edge of the touch unit area J in the second electrode group O2 are second setting electrodes O2', and the second setting electrodes O2' are connected in series along the first direction X.

Illustratively, the plurality of first set electrodes O1 'may be implemented in series along the second direction Y and the plurality of second set electrodes O2' may be implemented in series along the first direction X by removing the second dummy electrodes 4 at the edges of the touch cell area J.

It should be noted that the touch unit area J includes only half of the first set electrode O1 'and only half of the second set electrode O2'.

By electrically connecting the touch electrodes at the edge of the touch unit area J, while the electrical connection of the multiple sub-channels in the same touch channel is realized, the electrical connection of the multiple sub-channels can be performed according to the division of the touch unit area J, thereby avoiding a large change in self-capacitance values at different positions of the display device 1000, for example, avoiding a problem of different self-capacitance values in different touch unit areas J caused by randomly removing the second virtual electrode 4.

In some embodiments, as shown in fig. 22, in the case where the display device 1000 further includes a first connection portion B1 and a second connection portion B2, the plurality of first setting electrodes O1 'are connected in series through the first connection portion B1, and the plurality of second setting electrodes O2' are connected in series through the second connection portion B2.

The first connection portion B1 and the second connection portion B2 are provided on the same conductive layer. For example, the first connection portion B1 and the second connection portion B2 are provided in the first conductive layer 10A.

For example, referring to fig. 22, the first connection portion B1 may be integrally formed with the first set electrode O1', and the second connection portion B2 may be integrally formed with the second set electrode O2'.

The inventor of the present disclosure has performed an analysis of the touch effect on the display device 1000 provided in some embodiments of the present disclosure.

Experimental groups: referring to fig. 21, the display device 1000 provided by the embodiment of the disclosure includes the first virtual electrode 3, and one touch channel (including the first touch channel 1 and the second touch channel 2) includes a plurality of sub-channels (including the first sub-channel 1A and the second sub-channel 2A).

Control group: referring to fig. 7, in the related art, one touch channel includes one sub-channel.

The analytical results were as follows:

TABLE 1

	Control group	Experimental group
			Initial mutual capacitance value (pF)	1.49	0.81
Touch mutual capacitance value (pF)	1.37	0.69
			Variation of mutual capacity (pF)	0.12	0.12
Ratio of mutual capacitance value variation	8.05％	14.81％
			Self-contained value (pF) of first touch electrode	9.23	7.504
Self-contained value (pF) of second touch electrode	9.44	9.198
			Resistance of the first touch electrode (omega)	12.48	5.85
Resistance of the second touch electrode (omega)	16.29	4.76

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 display device 1000 provided in the embodiment of the present disclosure, under the condition that the variation of the mutual capacitance value is not changed, the initial mutual capacitance value is reduced, so that the ratio of the variation of the mutual capacitance value is increased, that is, the touch sensitivity is also increased. Meanwhile, the self-capacitance value of the touch electrode (including the parasitic capacitance generated by the touch electrode and the cathode layer) is reduced, the signal-to-noise ratio of the active pen in the touch process is effectively improved, and the touch effect of the active pen is optimized. Meanwhile, the embodiment of the disclosure also greatly reduces the resistance of the touch electrode, can effectively reduce the attenuation of the signal sent by the active pen, and simultaneously reduces the load of the touch structure 10, thereby further optimizing the touch effect.

To sum up, the display device 1000 provided by the embodiment of the present disclosure reduces the initial mutual capacitance value, the self-capacitance value of the touch electrode, and the resistance value, thereby greatly improving the sensitivity, the signal-to-noise ratio, and other performances of the active pen in the touch process, and optimizing the touch effect.

Referring to fig. 23, the inventors of the present disclosure performed an analysis of the touch effect on the touch points ((1) - (9)) in the touch cell region J in the experimental group, and used the touch points ((1) - (9)) corresponding to the display device 1000' in the related art as the control group during the analysis.

The sizes of the touch cell areas J in the experimental group and the touch cell areas J' in the control group are substantially the same.

The analytical results were as follows:

TABLE 2

Where "F1" is a coupling capacitance between the active pen and the first touch electrode Tx when the active pen performs a touch operation at a touch point in the display device 1000, and "F2" is a coupling capacitance between the active pen and the second touch electrode Rx when the active pen performs a touch operation at a touch point in the display device 1000.

Referring to table 2, in the related art (i.e., the comparison group), the coupling capacitance between the active pen and the touch electrode is greatly different at different positions, for example, at the touch point (1) and the touch point (2), and in addition, the coupling capacitance between the first touch electrode Tx and the active pen is also greatly different from the coupling capacitance between the second touch electrode Rx and the active pen at the same position, which results in poor linearity of the active pen during touch, and different attenuation amounts of signals emitted by the active pen at different touch points, which results in different flying heights at different positions of the active pen, and affects touch experience.

As can be seen from table 2, in the display device 1000 provided in the embodiment of the present disclosure, for example, at the touch point (1) and the touch point (2), the coupling capacitance between the active pen and the touch electrode is substantially the same, for example, at the touch point (2) and the touch point (3), the difference between the coupling capacitances between the active pen and the touch electrode is also reduced, and at the same position, for example, at the touch point (1), the coupling capacitance between the first touch electrode Tx and the active pen is substantially the same as the coupling capacitance between the second touch electrode Rx and the active pen.

To sum up, the display device 1000 provided by the embodiment of the present disclosure can effectively improve the linearity of the active pen in the touch process, and can also make the semaphore of the active pen at different positions substantially uniform, and the suspension height substantially uniform, thereby improving the touch experience of the active pen.

As shown in fig. 24, the touch structure 10 includes a plurality of first touch channels 1, a plurality of second touch channels 2, and a first virtual electrode 3.

In the plurality of first touch channels 1, each first touch channel 1 extends along the first direction X, each first touch channel 1 includes a plurality of first touch electrodes Tx sequentially arranged along the first direction X, and two adjacent first touch electrodes Tx are electrically connected.

In the plurality of second touch channels 2, each second touch channel 2 extends along the second direction Y, each second touch channel 2 includes a plurality of second touch electrodes Rx sequentially arranged along the second direction Y, and two adjacent second touch electrodes Rx are electrically connected.

The first touch channel 1 and the second touch channel 2 are mutually crossed and insulated. Thereby insulating the first touch electrode Tx and the second touch electrode Rx from each other.

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

Illustratively, the touch structure 10 includes a plurality of metal lines GL intersecting with each other to form a plurality of metal grids G.

Referring to fig. 24, the first dummy electrode 3 is disposed between the first touch electrode Tx and the second touch electrode Rx, and is insulated from the first touch electrode Tx and the second touch electrode Rx.

For example, the first touch electrode Tx, the second touch electrode Rx, and the first dummy electrode 3 are all metal mesh structures.

Referring to fig. 24, the boundary of the first virtual electrode 3 close to the first touch electrode Tx and the boundary of the first virtual electrode 3 close to the second touch electrode Rx are zigzag-shaped, the shapes of the adjacent boundaries of the first virtual electrode 3 and the first touch electrode Tx are matched, and the shapes of the adjacent boundaries of the first virtual electrode 3 and the second touch electrode Rx are matched.

By arranging the first virtual electrode 3 and arranging the boundary of the first virtual electrode 3 to be matched with the boundary of the touch electrode (including the first touch electrode Tx and the second touch electrode Rx) close to the first virtual electrode 3, the first virtual electrode 3 is approximately filled in the gap between the first touch electrode Tx and the second touch electrode Rx, so that the areas of the first touch electrode Tx and the second touch electrode Rx are reduced under the condition that the whole screen size of the touch structure 10 is not changed, the initial mutual capacitance value of the whole touch structure 10 (the mutual capacitance value of the touch structure 10 when a finger does not touch) can be reduced, the sensitivity of the touch structure 10 can be improved, and the touch effect can be optimized. The heat generation amount of the touch structure 10 can be reduced, so as to avoid the display device 1000 from being greatly worn due to temperature variation, for example, avoid ghost point problems occurring in the case that some materials in the display device 1000, such as the polarizer 500, have large temperature variation. In addition, after the area of the touch electrode is reduced, the parasitic capacitance between the touch electrode and the cathode layer 304 can be reduced, so that the signal-to-noise ratio of the active pen is improved, and the touch effect of the active pen is further optimized.

In some embodiments, as shown in fig. 24, the first dummy electrode 3 includes a plurality of extension portions 3' connected in sequence, each extension portion 3' has a strip shape, and the extension directions of any two adjacent extension portions 3' intersect.

Illustratively, as shown in fig. 24, the first dummy electrode 3 is in a "Z" shape.

In some embodiments, as shown in fig. 24, four first dummy electrodes 3 are disposed around the first touch electrode Tx, and the four first dummy electrodes 3 are disposed in central symmetry with respect to the center of the first touch electrode Tx. Four first virtual electrodes 3 are disposed around the second touch electrode Rx, and the four first virtual electrodes 3 are disposed in central symmetry with respect to the center of the second touch electrode Rx.

In some embodiments, as shown in fig. 25, the at least one first touch channel 1 includes a plurality of first sub-channels 1A, the plurality of first sub-channels 1A are arranged along the second direction Y, each first sub-channel 1A extends along the first direction X, and the first sub-channel 1A includes a plurality of first touch electrodes Tx electrically connected. For example, referring to fig. 25, one first touch channel 1 includes four first sub-channels 1A.

As shown in fig. 25, the at least one second touch channel 2 includes a plurality of second sub-channels 2A, the plurality of second sub-channels 2A are arranged along the first direction X, each of the second sub-channels 2A extends along the second direction Y, and the second sub-channels 2A include a plurality of second touch electrodes Tx electrically connected. For example, referring to fig. 25, one second touch channel 2 includes four second sub-channels 2A.

Through set up adjacent a plurality of sub-touch-control passageways (including first sub-passageway 1A and second sub-passageway 2A) in at least one touch-control passageway (including first touch-control passageway 1 and second touch-control passageway 2) to set up and connect electrically between a plurality of sub-touch-control passageways in same touch-control passageway, thereby can be in the area of touch-control unit region J in not changing touch-control structure 10, thereby when guaranteeing finger touch-control and display device 1000's adaptation degree, divide a plurality of touch-control points with the nib size looks adaptation of initiative pen in touch-control unit region J, the degree of accuracy of initiative pen has greatly been promoted, the touch-control function of initiative pen in display device 1000 has been considered. Meanwhile, the linearity of the active pen in the touch process is effectively improved, the signal quantity of the active pen at different positions is substantially uniform, the suspension height is substantially uniform, and the touch experience of the active pen is improved.

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 display device is characterized by comprising a touch area, a fan-out area, a first peripheral area, a second peripheral area and a third peripheral area, wherein the fan-out area, the first peripheral area, the second peripheral area and the third peripheral area surround the touch area; the first direction and the second direction intersect;

the touch area comprises a first sub-area, a second sub-area, a third sub-area and a fourth sub-area, the first sub-area and the second sub-area are arranged along the first direction, the first sub-area and the third sub-area are arranged along the second direction, and the third sub-area and the fourth sub-area are arranged along the first direction;

the display device includes:

the touch control device comprises a touch control area, a plurality of first touch control channels and a plurality of second touch control channels, wherein the touch control area is provided with a plurality of first touch control channels and a plurality of second touch control channels; at least one first touch channel and at least one second touch channel are arranged in each sub-area, and the at least one first touch channel and the at least one second touch channel are arranged in a crossed mode and are insulated from each other; the first touch channels positioned in different sub-areas are mutually insulated, and the second touch channels positioned in different sub-areas are mutually insulated;

the first touch routing lines are electrically connected with the first touch channels; a first touch routing line connected with a first touch channel in the first sub-area and the third sub-area extends from the first peripheral area to the fan-out area; a first touch routing line connected with the first touch channel in the second sub-area and the fourth sub-area extends from the second peripheral area to the fan-out area;

the plurality of second touch routing lines are electrically connected with the plurality of second touch channels; a second touch wire connected with a second touch channel in the first sub-area is led out from the third peripheral area and extends to the fan-out area through the first peripheral area; a second touch routing wire connected with a second touch channel in the second sub-area is led out from the third peripheral area and extends to the fan-out area through the second peripheral area; a second touch routing wire electrically connected with a second touch channel in the third sub-area and the fourth sub-area directly extends to the fan-out area;

the first touch control routing connected with the first touch control channel and the second touch control routing connected with the second touch control channel in any two sub-areas are electrically connected with the first touch control chip; in the other two sub-areas except the any two sub-areas, the first touch routing connected with the first touch channel and the second touch routing connected with the second touch channel are electrically connected with the second touch chip.

2. The display device according to claim 1, wherein the first touch channels in different sub-regions have substantially equal dimensions along the first direction; the sizes of the second touch channels located in different sub-areas along the second direction are approximately equal.

3. The display device according to claim 1, wherein the first touch channels located in different sub-regions comprise an equal number of the first touch electrodes; the second touch channels located in different sub-regions include equal number of the second touch electrodes.

4. The display device according to claim 1, wherein the centers of two adjacent first touch channels respectively located in the first sub-area and the second sub-area are substantially on the same straight line extending along the first direction, and the centers of two adjacent first touch channels respectively located in the third sub-area and the fourth sub-area are substantially on the same straight line extending along the first direction;

the centers of the two adjacent second touch channels are approximately positioned on the same straight line extending along the second direction, and are respectively positioned in the second sub-area and the fourth sub-area, and the centers of the two adjacent second touch channels are approximately positioned on the same straight line extending along the second direction.

5. The display device according to claim 4, wherein gaps are respectively formed between two first touch channels which are adjacently arranged along the first direction and belong to different sub-regions, and between two second touch channels which are adjacently arranged along the second direction and belong to different sub-regions, and the gaps extend in a zigzag shape.

6. The display device according to claim 1, wherein the first touch trace connected to the first touch channel in the first sub-area and the second touch trace connected to the second touch channel in the second sub-area are electrically connected to the first touch chip;

the first touch routing connected with the first touch channel in the third sub-area and the fourth sub-area and the second touch routing connected with the second touch channel are electrically connected with the second touch chip.

7. The display device according to claim 6, wherein the first touch chip and the second touch chip are both disposed on a side of the fan-out area away from the third peripheral area; in the second direction, the second touch chip is closer to the fan-out area than the first touch chip.

8. The display device according to claim 1, wherein the portion of the first touch trace located in the first peripheral area is disposed closer to the touch area than the portion of the second touch trace located in the first peripheral area; relative to the portion of the second touch trace located in the second peripheral area, the portion of the first touch trace located in the second peripheral area is disposed closer to the touch area.

9. The display device according to claim 1, further comprising:

the first virtual electrode is arranged between the adjacent first touch electrode and the second touch electrode and is insulated from the first touch electrode and the second touch electrode; the boundary of the first virtual electrode, which is close to the first touch electrode, and the boundary of the first virtual electrode, which is close to the second touch electrode are in a zigzag shape, the shapes of the boundaries of the first virtual electrode and the first touch electrode, which are close to each other, are matched, and the shapes of the boundaries of the first virtual electrode and the second touch electrode, which are close to each other, are matched.

10. The display device according to claim 9, wherein the first dummy electrode is a centrosymmetric pattern.

11. The display device according to claim 10, wherein a midpoint of a connection line between a center of a first touch electrode adjacent to the first virtual electrode and a center of a second touch electrode adjacent to the first virtual electrode coincides with the center of the first virtual electrode.

12. The display device according to claim 9, wherein the first dummy electrode includes a plurality of extension portions connected in sequence, each extension portion having a bar shape; the extending directions of any two adjacent extending parts are crossed.

13. The display device according to claim 12, wherein the first dummy electrode comprises a first extension portion and two second extension portions respectively disposed at two ends of the first extension portion and connected to the first extension portion, the first extension portion extends substantially along the second direction, and the second extension portion extends substantially along the first direction.

14. The display device of claim 12, wherein the plurality of extensions are substantially equal in length.

15. The display device according to claim 9, wherein the first dummy electrode has a bar shape, and widths of the first dummy electrode at different positions are substantially equal in a direction along which a length of the first dummy electrode extends.

16. The display device according to claim 9,

four first virtual electrodes are arranged around the first touch electrode, and the four first virtual electrodes are arranged in central symmetry relative to the center of the first touch electrode;

the four first virtual electrodes are arranged around the second touch electrode and are arranged in central symmetry relative to the center of the second touch electrode.

17. The display device according to claim 9, wherein each of the first touch electrode and the second touch electrode includes a main body portion, two first protruding portions and two second protruding portions, the main body portion is rectangular, the two first protruding portions are respectively disposed on two sides of the main body portion along the first direction, and the two second protruding portions are respectively disposed on two sides of the main body portion along the second direction; the two first protruding portions and the two second protruding portions are connected with the main body portion respectively.

18. The display device according to claim 9, further comprising:

the second virtual electrode is arranged between two adjacent first touch electrodes belonging to different first touch channels and between two adjacent second touch electrodes belonging to different second touch channels; the second virtual electrode is insulated from the first touch electrode and the second touch electrode.

19. The display device according to claim 18, wherein the second dummy electrode has a rectangular shape.

20. The display device according to any one of claims 1 to 19, wherein at least one first touch channel comprises a plurality of first sub-channels, the plurality of first sub-channels are arranged along the second direction, each first sub-channel extends along the first direction, and the first sub-channels comprise a plurality of first touch electrodes electrically connected; a plurality of first sub-channels included in the same first touch channel are electrically connected; and/or the presence of a gas in the atmosphere,

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

21. The display device according to claim 20, wherein at least one pair of two first touch electrodes adjacent to each other along the second direction are electrically connected in the same first touch channel; and/or the presence of a gas in the gas,

in the same second touch channel, at least one pair of two second touch electrodes adjacent to each other along the first direction are electrically connected.

22. The display device according to claim 20,

the first touch channel further comprises a first connecting part, and at least one pair of first touch electrodes adjacent to each other along the second direction in the same first touch channel are electrically connected through the first connecting part; and/or the presence of a gas in the gas,

the second touch channel further comprises a second connecting portion, and at least one pair of second touch electrodes adjacent to each other in the first direction in the same second touch channel are electrically connected through the second connecting portion.

23. The display device according to claim 22, wherein the display device comprises a first conductive layer, an insulating layer, and a second conductive layer which are stacked, wherein the insulating layer is located between the first conductive layer and the second conductive layer, and wherein 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 display device comprises at least one pair of crossed first connecting parts and second connecting parts,

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,

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.

24. The display device according to claim 20, wherein the first touch channel is located in a first rectangular region extending along the first direction, the second touch channel is located in a second rectangular region extending along the second direction, and a rectangular region where the first rectangular region and the second rectangular region intersect is a touch unit region;

a plurality of first electrode groups and a plurality of second electrode groups are arranged in the touch unit area, each first electrode group comprises a plurality of first touch electrodes which are electrically connected in sequence along the first direction, and each second electrode group comprises a plurality of second touch electrodes which are electrically connected in sequence along the second direction; the first electrode components belong to a plurality of first sub-channels of the same first touch channel, and the second electrode components belong to a plurality of second sub-channels of the same second touch channel;

a plurality of first touch electrodes positioned at the same side edge of the touch unit area in the plurality of first electrode groups are a plurality of first setting electrodes which are connected in series along the second direction;

the plurality of second touch control electrodes positioned on the same side edge of the touch control unit area in the plurality of second electrode groups are a plurality of second setting electrodes, and the plurality of second setting electrodes are connected in series along the first direction.

25. The display device according to claim 24, wherein in a case where the display device further comprises a first connection portion and a second connection portion, the plurality of first setting electrodes are connected in series through the first connection portion, and the plurality of second setting electrodes are connected in series through the second connection portion; the first connecting portion and the second connecting portion are arranged on the same conductive layer.

26. A touch structure, comprising:

each first touch channel extends along a first direction, each first touch channel comprises a plurality of first touch electrodes which are sequentially arranged along the first direction, and every two adjacent first touch electrodes are electrically connected;

each second touch channel extends along a second direction, each second touch channel comprises a plurality of second touch electrodes which are sequentially arranged along the second direction, and two adjacent second touch electrodes are electrically connected; the first touch channel and the second touch channel are mutually crossed and insulated; the first direction and the second direction are mutually crossed;

the first virtual electrode is arranged between the adjacent first touch electrode and the second touch electrode and is insulated from the first touch electrode and the second touch electrode; the boundary of the first virtual electrode, which is close to the first touch electrode, and the boundary of the first virtual electrode, which is close to the second touch electrode, are in a zigzag shape, the shapes of the boundaries of the first virtual electrode, which are close to each other, are matched, and the shapes of the boundaries of the first virtual electrode, which are close to each other, are matched.

27. The touch structure of claim 26, wherein the first virtual electrode comprises a plurality of extension portions connected in sequence, and each extension portion is in the shape of a bar; the extending directions of any two adjacent extending parts are crossed.

28. The touch structure of claim 26, wherein four first virtual electrodes are disposed around the first touch electrode, and the four first virtual electrodes are disposed in central symmetry with respect to a center of the first touch electrode;

29. The touch structure of any one of claims 26 to 28,

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