CN213750597U - Array substrate, touch panel and display device - Google Patents

Abstract

The utility model provides an array substrate, a touch panel and a display device, wherein, the array substrate comprises a first substrate, the scanning line is formed on the first substrate base plate, the data line, common electrode and pixel electrode, common electrode is including being a plurality of public electrode blocks that the array was arranged and mutual insulation, still be equipped with the response circuit layer on the array base plate, the response circuit layer is including many response circuits of mutual insulation, many response circuits and a plurality of public electrode blocks respectively one-to-one electric connection, the array base plate still is equipped with auxiliary electrode layer, auxiliary electrode layer is including being a plurality of broach form auxiliary electrode strips that the array was arranged and mutual insulation, every public electrode block corresponds electric connection with a broach form auxiliary electrode strip, the projection of broach form auxiliary electrode strip in the first substrate base plate direction of perpendicular to is located the scanning line and the projection of data line in the first substrate base plate direction of perpendicular to.

Description

Array substrate, touch panel and display device

Technical Field

The utility model relates to a show technical field, especially relate to an array substrate, touch panel and display device.

Background

With the development of the touch technology field, a touch panel with a touch function has become a mainstream display product more and more. The conventional touch panel and the integration method of the touch panel are generally classified into an in-cell (in-cell) method and an on-cell (out-of-box) method, and the in-cell touch screen is thinner and thinner than the on-cell touch screen.

On a touch panel of an in-cell touch screen in the prior art, each common electrode block corresponds to a different common voltage source, and in addition, each common electrode block at different positions may be connected to a touch line with different lengths, which results in a large impedance difference, fig. 1 is a schematic plane view between a sensing line layer and a common electrode in the prior art, specifically, in a display stage, the common electrode 1 includes a plurality of electrode blocks 1a arranged in an array and insulated from each other, each electrode block 1a corresponds to one or more sub-pixel regions, the sensing line layer 2 includes a plurality of sensing lines 2a insulated from each other, the plurality of sensing lines 2a are respectively electrically connected to the plurality of electrode blocks 1a in a one-to-one correspondence manner, and the other end of each sensing line 2a in the sensing line layer 2 is electrically connected to a touch driving integrated chip 3. The sensing circuit 2a in the sensing circuit layer 2 is used as a routing to lead out a detection signal to the touch driving integrated chip 3, and the detection signal is processed by the touch driving integrated chip 3, however, each electrode block 1a is mutually independent, when a common voltage source supplies a common voltage signal to the corresponding electrode block 1a, the potential difference received by different electrode blocks is large due to the difference of impedance and the stability degree of each voltage source, and then the display device can generate poor display of horizontal lines and vertical lines.

Therefore, how to enhance the common voltage in the plane of the array substrate and reduce the impedance of the common electrode is a matter to be considered and overcome in the design and development stage, the production debugging stage and even the use stage of the finished product.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an array substrate, touch panel and display device, through set up auxiliary electrode layer at array substrate, auxiliary electrode layer is including being a plurality of comb-tooth form auxiliary electrode strips that the array was arranged and mutual insulation, every public electrode piece corresponds electric connection with a comb-tooth form auxiliary electrode strip, comb-tooth form auxiliary electrode strip is located the projection of scanning line and data line in the first substrate orientation of perpendicular to at the projection of the first substrate orientation of perpendicular to, make array substrate's in-plane public voltage more even, the impedance of public electrode has been reduced simultaneously, with the problem of solving the bad demonstration that display device produced horizontal line and vertical line.

According to a first aspect of the present invention, there is provided an array substrate, comprising a first substrate, on which a scan line, a data line, a common electrode and a pixel electrode are formed, wherein the scan line and the data lines are mutually insulated and cross-limited to form a plurality of sub-pixel regions, the pixel electrode is disposed in each sub-pixel region, the common electrode comprises a plurality of common electrode blocks arranged in an array and insulated from each other, the array substrate is further provided with an induction circuit layer, the induction circuit layer comprises a plurality of induction circuits insulated from each other, the plurality of induction circuits are electrically connected to the plurality of common electrode blocks in a one-to-one correspondence manner, respectively, the array substrate is further provided with an auxiliary electrode layer, the auxiliary electrode layer comprises a plurality of comb-shaped auxiliary electrode strips arranged in an array and insulated from each other, and each of the common electrode blocks is electrically connected to one of the comb-shaped auxiliary electrode strips, the projection of the comb-tooth-shaped auxiliary electrode strip in the direction vertical to the first substrate base plate is positioned in the projection of the scanning line and the data line in the direction vertical to the first substrate base plate.

Further, a first flat layer is formed on the first substrate, a thin film transistor is arranged on the first flat layer, the thin film transistor includes a gate electrode arranged on the first flat layer, and a source electrode and a drain electrode which are arranged at an interval with the gate electrode through a gate insulating layer, the source electrode, the drain electrode, the pixel electrode and the sensing circuit layer are arranged on the gate insulating layer at the same layer, the gate insulating layer covers the gate electrode of the thin film transistor, and an island-shaped active layer is arranged on the gate insulating layer and is connected with the source electrode and the drain electrode respectively.

Furthermore, a first insulating layer and a second insulating layer are sequentially arranged on the induction line layer, the auxiliary electrode layer is located between the first insulating layer and the second insulating layer and electrically connected with the common electrode through a first through hole penetrating through the second insulating layer, and the induction line layer is electrically connected with a second through hole penetrating through the first insulating layer and the second insulating layer.

Furthermore, a third insulating layer is further arranged on the induction line layer, and the induction line layer is electrically connected with the auxiliary electrode layer through a third through hole penetrating through the third insulating layer.

Further, the projection edge of the common electrode block in the direction perpendicular to the first substrate coincides with the projection edge of the pixel electrode in the direction perpendicular to the first substrate.

Furthermore, each frame of the image of the array substrate is divided into a display time period and a touch time period, in the display time period, each common electrode block of the common electrode is used for image display, and in the touch time period, each common electrode block of the common electrode is used for touch sensing.

The utility model also provides a touch panel, include as above array substrate, a serial communication port, still include with the various membrane base plate that array substrate set up relatively various membrane base plate with it is equipped with the liquid crystal layer to press from both sides between the array substrate.

Further, the color film substrate comprises a second substrate, a color resistance layer and a black matrix shading layer are formed on the surface of one side, facing the liquid crystal layer, of the second substrate, and the projection edge of the black matrix shading layer in the direction perpendicular to the first substrate is overlapped with the projection edge of the pixel electrode in the direction perpendicular to the first substrate.

Furthermore, a second flat layer and a third flat layer are sequentially covered on the color resistance layer and the black matrix shading layer, a viewing angle control electrode is arranged on the second flat layer, and the projection of the viewing angle control electrode in the direction perpendicular to the first substrate is located in the projection area of the black matrix shading layer in the direction perpendicular to the first substrate.

The utility model also provides a display device, include as above touch panel.

The utility model provides an array substrate, a touch panel and a display device, the array substrate comprises a first substrate base plate, a scanning line, a data line, a common electrode and a pixel electrode are formed on the first substrate base plate, a plurality of scanning lines and a plurality of data lines are mutually insulated and cross limited to form a plurality of sub-pixel areas, the pixel electrode is arranged in each sub-pixel area, the common electrode comprises a plurality of common electrode blocks which are arranged in an array and are mutually insulated, an induction line layer is further arranged on the array substrate, the induction line layer comprises a plurality of induction lines which are mutually insulated, the induction lines and the common electrode blocks are respectively electrically connected in a one-to-one correspondence manner, an auxiliary electrode layer is further arranged on the array substrate, the auxiliary electrode layer comprises a plurality of comb-shaped auxiliary electrode strips which are arranged in an array and are mutually insulated, each common electrode block is electrically connected with one comb-shaped auxiliary electrode strip correspondingly, the projection of the comb-shaped auxiliary electrode strip in the direction perpendicular to the first substrate is positioned in the projection of the scanning line and the data line in the direction perpendicular to the first substrate, so that the in-plane common voltage of the array substrate is more uniform, the impedance of the common electrode is reduced, and the display device is prevented from generating poor display of transverse lines and vertical lines.

Drawings

FIG. 1 is a schematic plan view of a prior art sensing line layer and a common electrode;

fig. 2 is a schematic cross-sectional view of an array substrate according to a first embodiment of the present invention;

FIG. 3 is a schematic plan view of the sensing line layer of FIG. 2 in contact with a common electrode;

FIG. 4 is a schematic diagram of a waveform applied to the common electrode in FIG. 3;

fig. 5 is a schematic cross-sectional view of an array substrate according to a second embodiment of the present invention;

FIG. 6 is a schematic plan view of the sensing line layer of FIG. 5 in contact with a common electrode;

fig. 7 a-7 b are sectional views of a portion of a touch panel according to a third embodiment of the present invention;

fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention;

the drawings are numbered as follows:

1-a common electrode; 1 a-an electrode block; 2-induction line layer; 2 a-an inductive line; 3-touch control drive integrated chip;

100-an array substrate; 200-a touch panel; 300-a display device;

10-a first substrate base plate; 11 a-a first planar layer; 11 b-a gate insulating layer; 12-a thin film transistor;

12 a-a gate; 12 b-source; 12 c-a drain electrode; 12 d-an active layer;

13-pixel electrode;

14-a sensing line layer; 141-induction lines;

15-a common electrode; 151-common electrode block;

161-a first insulating layer; 162-a second insulating layer; 163-third insulating layer;

161 a-first via; 162 a-a second via; 163 a-third via;

17-an auxiliary electrode layer;

171-comb-shaped auxiliary electrode strips; 171 a-first auxiliary electrode strip; 171 b-second auxiliary electrode strips;

20-a color film substrate;

21-a second substrate base plate; 22-a color resist layer; 23-a black matrix light-shielding layer;

24-a second planar layer; 25-a third flat layer; 26-viewing angle control electrodes;

30-a liquid crystal layer;

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description will be given, with reference to the accompanying drawings and preferred embodiments, to the specific embodiments, structures, features and operating principles of the packaging device according to the present invention.

First embodiment

Fig. 2 is a schematic cross-sectional view of an array substrate according to a first embodiment of the present invention, fig. 3 is a schematic plan view of the sensing line layer and the common electrode in fig. 2, and fig. 2-3 are combined to show that the present invention provides an array substrate 100, which includes a first substrate 10, a scanning line and a data line (not shown in the figures for simplicity) and a common electrode 15 and a pixel electrode 13 are formed on the first substrate 10, the plurality of scanning lines and the plurality of data lines are mutually insulated and cross-defined to form a plurality of sub-pixel regions, the pixel electrode 13 is disposed in each sub-pixel region, the common electrode 15 includes a plurality of common electrode blocks 151 arranged in an array and mutually insulated, the array substrate 100 is further provided with a sensing line layer 14, the sensing line layer 14 includes a plurality of sensing lines 141 mutually insulated, the plurality of sensing lines 141 and the plurality of common electrode blocks 151 are respectively electrically connected in a one-to-one correspondence manner, it should be noted that the lengths of the sensing lines 141 included in the sensing line layer 14 are the same, so that the impedances of the sensing lines 141 are the same, and the common voltage received by the common electrode block 151 is more uniform.

In the embodiment provided by the present invention, the array substrate 100 is further provided with an auxiliary electrode layer 17, the auxiliary electrode layer 17 includes a plurality of comb-shaped auxiliary electrode strips 171 arranged in an array and insulated from each other, each common electrode block 151 corresponds to an electrical connection with one comb-shaped auxiliary electrode strip 171, the material of the comb-shaped auxiliary electrode strips 171 is a transparent conductive material, such as Indium Tin Oxide (ITO), etc., the arrangement of the comb-shaped auxiliary electrode strips 171 can make the in-plane common voltage more uniform, and simultaneously reduce the impedance of the common electrode 15, specifically, the projection of the comb-shaped auxiliary electrode strips 171 in the direction perpendicular to the first substrate 10 is located in the projection of the scan line and the data line in the direction perpendicular to the first substrate 10, so as to reduce the loss of the reflected light, and improve the brightness and the aperture ratio.

To further illustrate the structure and function of the array substrate 100 of the present invention, the positional relationship of the components in the array substrate 100 will be described in detail, specifically, a first flat layer 11a is formed on the first substrate 10, a thin film transistor 12 is disposed on the first flat layer 11a, specifically, the thin film transistor 12 includes a gate electrode 12a disposed on the first flat layer 11a, and a source electrode 12b and a drain electrode 12c spaced apart from the gate electrode 12a by a gate insulating layer 11b, and the source electrode 12b, the drain electrode 12c, the pixel electrode 13 and the sensing circuit layer 14 are disposed on the same layer on the gate insulating layer 11 b.

Further, a first insulating layer 161 and a second insulating layer 162 are sequentially disposed on the sensing line layer 14, the auxiliary electrode layer 17 is disposed between the first insulating layer 161 and the second insulating layer 162 and electrically connected to the common electrode 15 through a first via 161a penetrating through the second insulating layer 162, and the sensing line layer 14 is electrically connected through a second via 162a penetrating through the first insulating layer 161 and the second insulating layer 162. As a non-limiting example, it will be understood that the shapes of the first via 161a and the second via 162a may also be square, circular, triangular, or other regular and irregular patterns, and the technical idea of the present invention is not limited to the illustrated shapes.

Specifically, as shown in fig. 3, the comb-teeth-shaped auxiliary electrode stripes 171 include a first auxiliary electrode stripe 171a and a second auxiliary electrode stripe 171b that are end-to-end arranged in a horizontal and vertical manner, the first auxiliary electrode stripe 171a may correspond to a scan line, and the second auxiliary electrode stripe 171b may correspond to a data line, that is, a projection of the first auxiliary electrode stripe 171a in a direction perpendicular to the first substrate 10 is located in a projection of the scan line in a direction perpendicular to the first substrate 10, a projection of the second auxiliary electrode stripe 171b in a direction perpendicular to the first substrate 10 is located in a projection of the data line in a direction perpendicular to the first substrate 10, and of course, a projection of the first auxiliary electrode stripe 171a in a direction perpendicular to the first substrate 10 may be located in a projection of the data line in a direction perpendicular to the first substrate 10, and a projection of the second auxiliary electrode stripe 171b in a direction perpendicular to the first substrate 10 is located in a projection of the scan line in a direction perpendicular to the first substrate 10.

The gate insulating layer 11b covers the gate 12a of the thin film transistor 12, and the island-shaped active layer 12d is disposed on the gate insulating layer 11b and is respectively connected to the source and the drain 12c of the thin film transistor 12 b.

Further, the projection edge of the common electrode block 15 in the direction perpendicular to the first substrate 10 coincides with the projection edge of the pixel electrode 13 in the direction perpendicular to the first substrate 10, and such an arrangement mode can prevent light of the pixel electrode 13 in the light emitting display process from being blocked to some extent, which is beneficial to improving the brightness of the display device and improving the light utilization rate.

In addition, it will be understood that, in the embodiments of the present invention, the gate insulating layer 11b, the first insulating layer 161, the second insulating layer 162, etc. may be formed by processes such as plating, photoresist coating, exposing, developing, etching, and photoresist stripping, and the present invention is not described herein in detail with reference to the prior art.

To further explain the working principle of the array substrate provided in this embodiment, specifically, as shown in fig. 4, fig. 4 is a schematic diagram of a waveform applied to the common electrode in fig. 3, in this embodiment, each frame of the image of the array substrate is divided into a display time period T1 and a touch time period T2, in the display time period T1, each common electrode block 151 of the common electrode 15 is used for image display, an electric field is formed between the common electrode 15 and the pixel electrode 13, and liquid crystal molecules in the liquid crystal layer are driven (not shown, see fig. 5); in the touch time period T2, each common electrode block 151 of the common electrode 15 is used for touch sensing to sense a touch signal on the touch panel. That is, the common electrode 15 is used for driving the liquid crystal molecules to display a picture in the display time period T1 and for realizing touch sensing detection in the touch time period T2 in a time division multiplexing manner.

Second embodiment

Fig. 5 is a schematic cross-sectional view of an array substrate according to a second embodiment of the present invention, fig. 6 is a schematic plan view of the sensing line layer and the common electrode in fig. 5, and referring to fig. 5-6, the array substrate 100' provided in this embodiment is substantially the same as the array substrate 100 provided in the first embodiment in structure, except that a third insulating layer 163 is further disposed on the sensing line layer 14, and the sensing line layer 14 is electrically connected to the auxiliary electrode layer 17 through a third via 163a penetrating through the third insulating layer 163. In the present embodiment, the third insulating layer 163 is located above the sensing line layer 14 and the pixel electrode 13, but it should be understood that, in the embodiments provided in the present invention, unless otherwise stated, directional words such as "above" and "below" included in the terms only represent the direction of the terms in a conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms.

In this embodiment, the material of the third insulating layer 163 may be sinx (silicon nitride), the material of the auxiliary electrode layer 17 and the pixel electrode 13 may be a transparent conductive material, such as Indium Tin Oxide (ITO), and the material of the first substrate 10 and the second substrate 21 may be a transparent glass or a colloid substrate.

Further, in the embodiment, the auxiliary electrode layer 17 is disposed on the array substrate 100, the auxiliary electrode layer 17 includes a plurality of comb-shaped auxiliary electrode strips 171 which are arranged in an array and are insulated from each other, each common electrode block 151 is electrically connected to one comb-shaped auxiliary electrode strip 171 correspondingly, and projections of the comb-shaped auxiliary electrode strips 171 in a direction perpendicular to the first substrate 10 are located in projections of the scan lines and the data lines in a direction perpendicular to the first substrate, so that the in-plane common voltage of the array substrate 100 can be more uniform, and the effect of reducing the impedance of the common electrode is achieved.

Third embodiment

Fig. 7a to 7b are sectional views of a part of the structure of a touch panel provided in a third embodiment of the present invention, and this embodiment provides a touch panel 200, which includes the array substrate 100 as described above (a touch panel 200 'including the array substrate 100' as described above is also possible), and a color filter substrate 20 disposed opposite to the array substrate 100, and a liquid crystal layer 30 interposed between the color filter substrate 20 and the array substrate 100, which is described below as the touch panel 200 including the array substrate 100 as described above.

Specifically, the color filter substrate 20 includes a second substrate 21, a color resist layer 22a and a black matrix shading layer 22b are formed on a surface of the second substrate 21 facing the liquid crystal layer 30, and a projection edge of the black matrix shading layer 22b in a direction perpendicular to the first substrate 10 coincides with a projection edge of the pixel electrode 13 in a direction perpendicular to the first substrate 10.

The color resistance layer 22a and the black matrix shading layer 22b are sequentially covered with a second flat layer 23 and a third flat layer 24, a viewing angle control electrode 25 is arranged on the second flat layer 23, the projection of the viewing angle control electrode 25 in the direction perpendicular to the first substrate 10 is located in the projection area of the black matrix shading layer 22b in the direction perpendicular to the first substrate 10, the viewing angle control electrode 55 on the color film substrate is used for controlling the touch panel 200 to switch the wide viewing angle and the narrow viewing angle, and the touch panel 25 can be switched between the wide viewing angle mode and the narrow viewing angle mode by applying different voltages to the viewing angle control electrode 25.

It will be understood that, although the terms "first," "second," etc. may be used herein to modify various insulating layers according to various embodiments, these substrates should not be limited by these terms, which do not limit the order and/or importance of the respective substrates. These terms are only used to distinguish the substrates from each other, and the first substrate 10 may be referred to as a second substrate 21, and similarly, the second substrate 21 may also be referred to as the first substrate 10, without departing from the spirit and scope of the inventive concept.

Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention, referring to fig. 8, the display device 300 includes any one of the touch panels 200 provided in the above embodiments of the present invention, and it can be understood that the display device 300 may be a mobile phone, a computer, and other electronic devices, and the electronic devices may be a smart phone, a tablet Personal Computer (PC), a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook PC, a Personal Digital Assistant (PDA), a Portable Multimedia Player (PMP), a digital audio player, a mobile medical device, a camera, a wearable device (e.g., a head-mounted device (HMD), an electronic bracelet, an electronic necklace, an electronic accessory, an electronic tattoo, or a smart watch), and the like.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The utility model provides an array substrate, a touch panel and a display device, the array substrate comprises a first substrate, a scanning line, a data line, a common electrode and a pixel electrode are formed on the first substrate, the scanning line and the data line are mutually insulated and cross limited to form a plurality of sub-pixel areas, the pixel electrode is arranged in each sub-pixel area, the common electrode comprises a plurality of common electrode blocks which are arranged in an array and are mutually insulated, an induction circuit layer is also arranged on the array substrate, the induction circuit layer comprises a plurality of induction circuits which are mutually insulated, the induction circuits are respectively electrically connected with the common electrode blocks in a one-to-one correspondence manner, the array substrate is also provided with an auxiliary electrode layer, the auxiliary electrode layer comprises a plurality of comb-tooth-shaped auxiliary electrode strips which are arranged in an array and are mutually insulated, each common electrode block is electrically connected with one comb-tooth-shaped auxiliary electrode strip in a corresponding manner, the projection of the comb-shaped auxiliary electrode strips in the direction perpendicular to the first substrate base plate is positioned in the projection of the scanning lines and the data lines in the direction perpendicular to the first substrate base plate, so that the in-plane common voltage of the array substrate is more uniform, the impedance of the common electrode is reduced, and the display device is prevented from generating poor display of transverse lines and vertical lines.

It is understood that the touch panel 200 (200') of the present invention is illustrated schematically, the technical solution of the present invention should not be limited, and those skilled in the art can select the solution appropriately according to the actual product application, the array substrate may be a touch panel, or other electronic products, especially an electronic device with a severe requirement on the impedance of the common electrode, and the array substrate may be modified according to specific design requirements, and the embodiment does not limit the specific type of the touch panel, can be a Liquid Crystal display panel (Thin Film Transistor Liquid Crystal display, TFT-LCD, Organic Light-Emitting display (OLED)), electronic paper display (electronic paper display, EPD) or other types of display panels, the utility model discloses do not do too much repetitious description here.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any simple modification, equivalent change and modification made by the technical matters of the present invention to the above embodiments by those skilled in the art are still within the technical scope of the present invention, and therefore, the protection scope of the present invention should be subject to the protection scope of the appended claims.

Claims (10)

1. An array substrate comprises a first substrate base plate, wherein scanning lines, data lines, a common electrode and pixel electrodes are formed on the first substrate base plate, the scanning lines and the data lines are mutually insulated and crossed to limit a plurality of sub-pixel areas, the pixel electrodes are arranged in each sub-pixel area, the common electrode comprises a plurality of common electrode blocks which are arranged in an array and mutually insulated, an induction circuit layer is further arranged on the array substrate and comprises a plurality of induction circuits which are mutually insulated, the induction circuits and the common electrode blocks are respectively electrically connected in a one-to-one correspondence mode, the array substrate is characterized in that an auxiliary electrode layer is further arranged on the array substrate and comprises a plurality of comb-tooth-shaped auxiliary electrode strips which are arranged in an array and mutually insulated, and each common electrode block is electrically connected with one comb-tooth-shaped auxiliary electrode strip correspondingly, the projection of the comb-tooth-shaped auxiliary electrode strip in the direction vertical to the first substrate base plate is positioned in the projection of the scanning line and the data line in the direction vertical to the first substrate base plate.

2. The array substrate of claim 1, wherein a first planar layer is formed on the first substrate, a thin film transistor is disposed on the first planar layer, the thin film transistor includes a gate disposed on the first planar layer, and a source and a drain spaced apart from the gate by a gate insulating layer, the source and the drain are disposed on the gate insulating layer in the same layer as the pixel electrode and the sensing circuit layer, the gate insulating layer covers the gate of the thin film transistor, and island-shaped active layers are disposed on the gate insulating layer and respectively connected to the source and the drain.

3. The array substrate of claim 2, wherein a first insulating layer and a second insulating layer are sequentially disposed on the sensing circuit layer, the auxiliary electrode layer is disposed between the first insulating layer and the second insulating layer and electrically connected to the common electrode through a first via penetrating the second insulating layer, and the sensing circuit layer is electrically connected to the common electrode through a second via penetrating the first insulating layer and the second insulating layer.

4. The array substrate of claim 2, wherein a third insulating layer is further disposed on the sensing circuit layer, and the sensing circuit layer is electrically connected to the auxiliary electrode layer through a third via penetrating through the third insulating layer.

5. The array substrate of claim 3 or 4, wherein the projected edge of the common electrode block in the direction perpendicular to the first substrate coincides with the projected edge of the pixel electrode in the direction perpendicular to the first substrate.

6. The array substrate of claim 1, wherein each frame of the image of the array substrate is divided into a display time period and a touch time period, in the display time period, each common electrode block of the common electrode is used for image display, and in the touch time period, each common electrode block of the common electrode is used for touch sensing.

7. A touch panel comprising the array substrate according to any one of claims 1 to 6, and further comprising a color filter substrate disposed opposite to the array substrate, wherein a liquid crystal layer is interposed between the color filter substrate and the array substrate.

8. The touch panel of claim 7, wherein the color filter substrate comprises a second substrate, a color resist layer and a black matrix shading layer are formed on a surface of the second substrate facing the liquid crystal layer, and a projection edge of the black matrix shading layer in a direction perpendicular to the first substrate coincides with a projection edge of the pixel electrode in a direction perpendicular to the first substrate.

9. The touch panel according to claim 8, wherein a second flat layer and a third flat layer are sequentially covered on the color resist layer and the black matrix shading layer, a viewing angle control electrode is disposed on the second flat layer, and a projection of the viewing angle control electrode in a direction perpendicular to the first substrate is located in a projection area of the black matrix shading layer in a direction perpendicular to the first substrate.

10. A display device comprising the touch panel according to any one of claims 7 to 9.

Images