Array substrate, preparation method, touch display panel and device

Abstract

The invention provides an array substrate, a preparation method, a touch display panel and a touch display device. Specifically, the array substrate comprises a data line, a common electrode layer and a pixel electrode layer which are arranged on a substrate; wherein the data line is located on the side, away from the pixel electrode layer, of the common electrode layer; the common electrode layer comprises a hollow area used for touch control partition; the orthographic projection of the hollow area on the substrate is not overlapped with the orthographic projection of the data line on the substrate. According to the scheme, exposure of the data lines can be avoided while the touch subareas are formed through the hollowed-out areas, so that crosstalk of the data lines to the pixel electrodes is avoided, and the problem that in the prior art, due to the fact that the data lines are exposed in the hollowed-out areas, crosstalk is caused, and consequently display of a specific picture is poor is solved.

Description

Technical Field

[0001] The present disclosure relates to the field of touch display technology, and in particular to an array substrate, a preparation method, a touch display panel and a device. Background Art

[0002] With the continuous advancement of display technology, the thickness of display devices is getting thinner and thinner. For touch display devices, the implementation method of the touch function directly affects whether the overall thickness of the display device can be reduced. Touch and display driver integration technology (TDDI) makes products with thinner thickness and higher brightness and is increasingly widely used. For TDDI products that combine liquid crystal display panels and touch functions, their display images are still not satisfactory. Summary of the invention

[0003] In view of this, an object of the present disclosure is to provide an array substrate, a preparation method, a touch display panel and a device.

[0004] Based on the above purpose, the present disclosure provides an array substrate, including:

[0005] A data line, a common electrode layer and a pixel electrode layer are arranged on a substrate; wherein,

[0006] The data line is located at a side of the common electrode layer away from the pixel electrode layer;

[0007] The common electrode layer includes a hollow area for touch control partitioning;

[0008] The orthographic projection of the hollow area on the substrate has no overlap with the orthographic projection of the data line on the substrate.

[0009] Based on the same inventive concept, the embodiment of the present disclosure further provides a method for preparing an array substrate, comprising:

[0010] A data line, a common electrode layer and a pixel electrode layer are formed on a substrate; wherein the data line is located on a side of the common electrode layer away from the pixel electrode layer;

[0011] The mask used to form the common electrode layer includes an electrode pattern; the electrode pattern ensures that the orthographic projection of the hollowed-out region of the common electrode layer on the substrate does not overlap with the orthographic projection of the data line on the substrate.

[0012] Based on the same inventive concept, an embodiment of the present disclosure further provides a touch display panel, comprising any of the aforementioned array substrates.

[0013] Based on the same inventive concept, an embodiment of the present disclosure further provides a touch display device, comprising any of the aforementioned touch display panels.

[0014] From the above description, it can be seen that an array substrate, a preparation method, a touch display panel and a device provided by the embodiments of the present disclosure adjust the position of the hollow area of ​​the common electrode layer so that the orthographic projection of the hollow area on the substrate and the orthographic projection of the data line on the substrate do not overlap, so that the exposure of the data line can be avoided while the touch partition is formed by using the hollow area, thereby avoiding crosstalk of the data line to the pixel electrode, and solving the problem of poor display of specific pictures caused by crosstalk caused by exposing the data line in the hollow area in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1A A schematic diagram showing the principle of liquid crystal dimming provided by an embodiment of the present disclosure is shown;

[0017] Figure 1B Show Figure 1A A schematic structural diagram of the first polarizer 101;

[0018] Figure 1C Show Figure 1A A schematic structural diagram of the second polarizer 105;

[0019] Figure 1D A schematic diagram of a pixel structure in a liquid crystal display panel provided by an embodiment of the present disclosure is shown;

[0020] Figure 1E A schematic cross-sectional view showing a partial pixel structure in a liquid crystal display panel provided by an embodiment of the present disclosure;

[0021] Figure 1F A schematic diagram showing a wave vector of a polarized light before passing through a metal wire provided by an embodiment of the present disclosure;

[0022] Figure 1G A schematic diagram showing a wave vector of a polarized light after passing through a metal wire provided by an embodiment of the present disclosure;

[0023] Figure 2A A schematic diagram showing a planar structure of a pixel of a touch display panel provided by an embodiment of the present disclosure is shown;

[0024] Figure 2B Show Figure 2A Schematic diagram of the cross section along line AA;

[0025] Figure 2C A schematic diagram showing a voltage of a sub-pixel in a normal display state provided by an embodiment of the present disclosure is shown;

[0026] Figure 2D A schematic diagram showing a voltage of a sub-pixel in a bad display state provided by an embodiment of the present disclosure is shown;

[0027] Figure 3A A partial planar structural schematic diagram of a pixel of another touch display panel provided by an embodiment of the present disclosure is shown;

[0028] Figure 3B Show Figure 3A Schematic diagram of the cross section along line BB;

[0029] Figure 4A Show Figure 3A Light effects of pixels shown;

[0030] Figure 4B A VT curve diagram showing different widths of the common electrode hollow region provided by an embodiment of the present disclosure;

[0031] Figure 4C A schematic diagram showing the electric field and liquid crystal distribution when the width of the hollow region of the common electrode provided by the embodiment of the present disclosure is 3 μm;

[0032] Figure 4D A schematic diagram showing the electric field and liquid crystal distribution when the width of the common electrode hollow region provided by the embodiment of the present disclosure is 6.4 μm. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] In order to facilitate understanding of the technical solution of the present disclosure, some principles involved in the present disclosure are introduced below.

[0036] Figure 1A FIG. 2 is a schematic diagram showing a principle of liquid crystal dimming provided by an embodiment of the present disclosure. Figure 1A The optical device 100 shown includes a first polarizer 101, a first electrode 102, a second electrode 104, and a second polarizer 105 which are arranged in sequence. Light can be incident on the left side of the optical device 100 and emitted from the right side.

[0037] The transmission axis of the first polarizer 101 and the transmission axis of the second polarizer 105 are perpendicular to each other. Figure 1B Show Figure 1A A schematic structural diagram of the first polarizer 101, wherein the transmission axis thereof is parallel to the y-axis; Figure 1C Show Figure 1A The second polarizer 105 is a schematic structural diagram; the transmission axis is parallel to the x-axis. The x-axis and the y-axis are perpendicular to each other.

[0038] Liquid crystal 103 is disposed between the first electrode 102 and the second electrode 104. Different voltages are applied between the first electrode 102 and the second electrode 104, so that the liquid crystal 103 deflects at different angles, and the polarization direction of the light passing through the first polarizer 101 can be changed. If the liquid crystal 103 deflects by 90°, all the light can be emitted by the second polarizer 105, and if the liquid crystal 103 deflects by 0°, no light can be emitted by the second polarizer 105.

[0039] Based on the above technical principles, a liquid crystal display panel can be prepared. Figure 1DA schematic diagram of a pixel structure in a liquid crystal display panel provided by an embodiment of the present disclosure is shown. The intersecting gate lines 106 and data lines 107 can divide the display panel into multiple areas, and each area can be provided with a sub-pixel. The red sub-pixel R can emit red light of different brightness, the green sub-pixel G can emit green light of different brightness, and the blue sub-pixel B can emit blue light of different brightness. The red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B can constitute a pixel to form various colors.

[0040] Combine the following Figure 1E , a brief description is given of the display panel structure that forms various colors. Figure 1E A schematic cross-sectional view of a partial pixel structure in a liquid crystal display panel provided by an embodiment of the present disclosure is shown. A data line 107, a common electrode layer 102, and a pixel electrode layer 104 are disposed on a substrate 109. The pixel electrode layer 104 includes a plurality of sub-pixel electrodes (three sub-pixel electrodes are shown in the figure) arranged along a first direction (i.e., a gate line direction). At least one data line 107 is disposed between two adjacent sub-pixel electrodes to provide a display control signal to the corresponding sub-pixel electrode. Figure 1E As shown, the left data line 107 provides a display control signal for the middle sub-pixel electrode, and the right data line 107 provides a display control signal for the right sub-pixel electrode. Based on the display control signal of the data line 107, each sub-pixel electrode can have an electrical signal, so that different voltages are formed between the sub-pixel electrode and the common electrode layer 102, so that the liquid crystal between the sub-pixel electrode and the common electrode layer 102 has different deflection angles. Combined with the transmission axis of the first polarizer 101 and the second polarizer 105 ( Figure 1E The light is then passed through color films (not shown) of different colors (such as red, green, and blue) to obtain light of various colors.

[0041] In order to achieve liquid crystal self-compensation, improve color deviation, and expand the viewing angle range, sub-pixels are usually arranged at an angle, that is, the extension direction of the data line 107 (i.e., the second direction) and the extension direction of the gate line present a certain angle, and the angle is less than 90°. It should be noted that for sub-pixels arranged in an array, in order to present multiple angles, the inclination angles of sub-pixels in different rows can also be different, that is, the extension direction of the data line 107 can be different for different gate lines.

[0042] With the development of technology, users have put forward higher requirements for the convenience of operation of electronic products, and touch display devices have emerged. Integrating the display function and the touch function into one can effectively reduce the thickness of the screen and reduce the cost, which is favored by consumers. Among them, it is a common way for the display function and the touch function to share the common electrode layer 102.

[0043] In some embodiments, in order to reduce the load of the product and the touch partition, the common electrode layer 102 can be divided into blocks to obtain touch partitions. Figure 2A and Figure 2B An exemplary description is given. Figure 2A A schematic diagram showing a planar structure of a pixel of a touch display panel provided by an embodiment of the present disclosure is shown; Figure 2B Show Figure 2A Schematic cross-sectional view along line AA in FIG. The data line 201 of the touch display panel 200 is located between adjacent sub-pixels. A pixel electrode layer 203 is disposed between the common electrode layer 204 and the color filter 205. For touch partitioning, the common electrode layer 204 is bored in the area corresponding to the data line 201 to form a hollow area, so as to divide the common electrode layer 204 into different blocks.

[0044] In order to realize the touch function, in addition to improving the common electrode layer 204 , a touch signal line 202 is additionally provided in the display panel. Figure 1F A schematic diagram of a wave vector of a polarized light before passing through a metal wire provided by an embodiment of the present disclosure is shown. Here, the direction of the transmission axis of the first polarizer 101 is the same as the first direction. The touch signal line is arranged between the first polarizer 101 and the second polarizer 105. The angle between the metal wire and the x-axis is α. Here, the direction of the x-axis is perpendicular to the transmission axis. Light E xy When the light E passes through the transmission axis T101 of the first polarizer 101 and is incident in a direction perpendicular to the paper plane (i.e., the plane where the panel is located) (the circle in the figure indicates the direction of the incident light), before contacting the metal wire 108, the light E xy Including S wave component E s and P wave components. Figure 1G A schematic diagram of the wave vector of a polarized light beam after passing through a metal wire provided by an embodiment of the present disclosure is shown. xy Straight-edge diffraction occurs when passing through the metal wire 108, causing the light propagation direction to change from the direction perpendicular to the paper to the direction perpendicular to the metal wire 108 ( Figure 1G The P wave component changes to the direction perpendicular to the paper ( Figure 1G The S wave component is in the plane where the panel is located. s The component E' in the direction of the transmission axis T105 of the second polarizer 105 can be decomposed. xy (shown by double lines in the figure), which is the depolarization amount. The depolarization amount, E', can be calculated by the following formula: xy =Exy×cosα×sinα=1 / 2×Exy×sin2α.

[0045] The depolarization amount can cause light leakage through the second polarizer 105. According to the above formula, when α is 45°, the light leakage is most serious; when α is 0°, E' xy Minimal light leakage, which helps improve contrast.

[0046] Usually the direction of the grid lines is the same as the transmission axis of the first polarizer (here, the first polarizer is located before the liquid crystal layer in the optical path). Figure 2A As shown, the extension direction of the touch signal line 202 provided in the embodiment of the present disclosure intersects with the extension direction of the gate line and the included angle between the touch signal line 202 and the gate line is greater than the included angle between the data line 201 and the gate line. Exemplarily, the included angle between the touch signal line 202 and the gate line is ≥88°, such as 88°, 89° or 90°.

[0047] In this way, the touch function and the display function can be combined together, the thickness of the device can be reduced, and the influence of the touch signal line 202 on the light emission of the display panel can be minimized.

[0048] Next, the inventor studied the display performance of the above touch display panel and found that certain display images have a poor display problem. Figure 2C and Figure 2D The display failure problem will be described by way of example. Figure 2C A schematic diagram showing a voltage of a sub-pixel in a normal display state provided by an embodiment of the present disclosure is shown; Figure 2D A schematic diagram of a voltage in a bad display state of a sub-pixel provided by an embodiment of the present disclosure is shown. Figure 2C and Figure 2D 201, three gate lines and three red sub-pixels are shown respectively. When the middle sub-pixel displays white and the upper and lower sub-pixels display gray, Figure 2C In the normal display state, the control of the display screen is line-by-line scanning. When scanning to the middle, the voltage provided by the data line 201 is 4V, the upper sub-pixel has completed the current frame charging (for example, 2V), and the lower sub-pixel maintains the upper frame voltage of -2V. Figure 2B As shown, since the common electrode layer 204 forms a hollow area at the location of the data line 201, when the voltage of the data line 201 is relatively large (for example, 4V), the electric field formed between the data line 201 and the sub-pixel electrode directly affects the electric field between the sub-pixel electrode and the common electrode layer 204. Figure 2D For the upper sub-pixel, the direction of the electric field between the data line and the sub-pixel electrode is opposite to that between the sub-pixel electrode and the common electrode layer, and the voltage is reduced to 1V; for the lower sub-pixel, the direction of the electric field between the data line and the sub-pixel electrode is the same as that between the sub-pixel electrode and the common electrode layer, and the voltage is increased to 3V. Figure 2C The normal display state shown is Figure 2DThe low voltage of the upper sub-pixel will cause the red to become darker, and the cyan to stand out relatively; the high voltage of the lower sub-pixel will cause the red to become brighter, and the red to stand out relatively, ultimately resulting in the same gray pixel showing an undesirable display effect with cyan on top and red on the bottom.

[0049] In view of this, an embodiment of the present disclosure provides yet another touch display panel. Figure 3A A partial planar structural schematic diagram of a pixel of another touch display panel provided by an embodiment of the present disclosure is shown; Figure 3B Show Figure 3A The touch display panel includes a gate line 306, a data line 301 and a touch signal line 302 ( Figure 3A The parallelogram between adjacent data lines 301 represents the sub-pixel electrode; the common electrode layer 304 is represented by the gray rectangle between adjacent touch signal lines 302. Figure 3B It can be seen that the orthographic projection of the common electrode layer 304 on the substrate (not shown in the figure) covers the orthographic projection of the data line 301 on the substrate, and the data line 301 is located on the side of the common electrode layer 304 away from the pixel electrode layer 303, so that the common electrode layer 304 is used to block the interference of the data line 301 on the pixel electrode layer 303, thereby achieving the technical effect of improving the poor display image. Optionally, a color filter 305 is provided on the side of the pixel electrode layer 303 away from the common electrode layer 304.

[0050] In some embodiments, the common electrode layer 304 and the pixel electrode layer 303 are each independently selected from transparent conductive materials. Here, the transparent conductive material can be indium tin oxide (ITO), graphene, etc. This disclosure does not limit this.

[0051] The hollowed-out area of ​​the common electrode layer 304 is adjusted to correspond to the touch signal line 302. It should be noted that the hollowed-out area is used to divide the common electrode layer 304 into multiple touch zones to facilitate the touch function. Exemplarily, the orthographic projection of the hollowed-out area of ​​the common electrode layer 304 on the substrate (not shown) at least partially overlaps with the orthographic projection of the touch signal line 302 on the substrate.

[0052] In some embodiments, the touch signal line 302 and the data line 301 can be arranged in the same layer, which helps to reduce the manufacturing process and also helps to reduce the thickness of the panel. Optionally, the touch signal line 302 and the data line 301 can be made of metal materials, such as copper, silver, etc.

[0053] Figure 4A Show Figure 3A The light effect of the pixel is shown. Figure 4A It can be seen that adjusting the hollow area of ​​the open electrode layer 304 to a position opposite to the touch signal line 302 will not affect the light emission of the display panel.

[0054] Since the hollow area corresponds to the touch signal line 302, in some embodiments, the extension direction of the hollow area can be the same as the extension direction of the touch signal line. The width of the hollow area can be greater than the width of the touch signal line, or can be equal to the width of the touch signal line, as long as the common electrode layer 304 can be partitioned.

[0055] In order to improve the light effect, the inventors of the present disclosure also conducted experimental research on the appropriate width of the hollow area, and the results are shown in Table 1. Figure 4B shown.

[0056] Table 1 Comparison of the effect of hollow area width on transmittance

[0057] Example Touch signal line width (μm) Hollow width (μm) Vop(V) Transmittance Normalization Example 1 3.0 3 6.0 0.17313 105.4 Example 2 3.0 6.4 6.0 0.16462 100

[0058] Figure 4B VT curves of different widths of the hollow regions of the common electrodes provided by the embodiments of the present disclosure are shown. Figure 4B It can be seen that no matter how large the hollow width is, the transmittance increases with the increase of voltage. The transmittance of the hollow with a width of 3μm is always greater than that of the hollow with a width of 6.4μm. It can be seen that the smaller the hollow width, the higher the transmittance. The transmittance is better when the hollow width is equal to the width of the touch signal line.

[0059] Figure 4C A schematic diagram showing the electric field and liquid crystal distribution when the width of the hollow region of the common electrode provided by the embodiment of the present disclosure is 3 μm; Figure 4D The electric field and liquid crystal distribution diagram when the width of the common electrode hollow region provided by the embodiment of the present disclosure is 6.4 μm is shown. Figure 4C and Figure 4D , the electric field between the common electrode layer and the pixel electrode is Figure 4C The dashed box 401 and Figure 4D That is, when the width of the hollow area increases, the liquid crystal distribution at the corresponding position is affected, the electric field between the common electrode layer and the pixel electrode is weakened, and the transmittance is reduced. In other words, the smaller the width of the hollow area, the better the electric field uniformity and the higher the transmittance.

[0060] The present disclosure also provides an array substrate. Figure 3A and Figure 3B As shown, including:

[0061] A data line 301, a common electrode layer 304 and a pixel electrode layer 303 are arranged on a substrate (not shown in the figure); wherein the data line 301 is located on a side of the common electrode layer 304 away from the pixel electrode layer 303;

[0062] The common electrode layer 304 includes a hollow area for touch partitioning (refer to Figure 3A The orthographic projection of the hollow area on the substrate has no overlap with the orthographic projection of the data line 301 on the substrate.

[0063] In some embodiments, the invention further comprises: a touch signal line 302 ; the orthographic projection of the touch signal line 302 on the substrate is at least partially covered by the orthographic projection of the hollow area on the substrate. Here, the touch signal line 302 can be disposed in a different layer from the common electrode layer 304 .

[0064] Exemplarily, the orthographic projection of the touch signal line 302 on the substrate is completely covered by the orthographic projection of the hollow area on the substrate. At this time, the width of the touch signal line 302 is ≤ the width of the hollow area.

[0065] Exemplarily, the orthographic projection of the touch signal line 302 on the substrate is partially covered by the orthographic projection of the hollow area on the substrate, and at this time, the width of the touch signal line 302 is greater than the width of the hollow area.

[0066] In some embodiments, a gate line 306 is further included, and the data line 301 and the touch signal line 302 extend in directions intersecting the gate line, respectively, and the angle between the data line 301 and the gate line 306 is smaller than the angle between the touch signal line 302 and the gate line 306. Here, the angle between the data line 301 and the gate line 306 can be an acute angle greater than 45°, so that the sub-pixel area divided by the two is tilted, which helps to improve the viewing angle of the liquid crystal display panel. The extension direction of the gate line 306 is the same as the transmission axis of the first polarizer 101, and the angle between the touch signal line 302 and the gate line 306 is greater than the angle between the data line 301 and the gate line 306, which helps to reduce the light leakage problem caused by the touch signal line 302.

[0067] In some embodiments, the included angle between the touch signal line 302 and the gate line 306 is ≥88° and ≤90°.

[0068] In some embodiments, the width of the hollow area corresponding to the touch signal line 302 is equal to the width of the touch signal line 302 , for example, 1.5 μm, 3.0 μm, or 4.5 μm.

[0069] In some embodiments, the width of the hollow area corresponding to the touch signal line 302 is ≥1.5μm and ≤6.4μm, for example, 1.5μm, 3.0μm, 4.5μm, 6.0μm. Here, the smaller the width of the hollow area, the more conducive it is to ensuring the transmittance. If it exceeds 6.4μm, the transmittance of light is affected. It should be noted that the width corresponding to the touch signal line 302 can be a width ≥1.5μm and ≤4.5μm. It should be understood that when the width of the touch signal line is determined, the width of the hollow area corresponding to the touch signal line 302 can be determined according to the light effect result, rather than the larger the width, the greater the transmittance.

[0070] In some embodiments, the touch signal line 302 and the data line 301 are located in the same layer, which is conducive to simplifying the manufacturing process and reducing the thickness of the device. It should be noted that the touch signal line 302 and the data line 301 can also be prepared in different layers, which is not limited in the present disclosure.

[0071] In some embodiments, the common electrode layer 304 is located on the side of the pixel electrode layer 303 close to the substrate. Such a structure can more conveniently set the touch signal line 302 and the data line 301. Of course, the common electrode layer 304 can also be located on the side of the pixel electrode layer 303 away from the substrate. It should be noted that Figure 3B As shown, the pixel electrode layer 303 includes a plurality of sub-pixel electrodes, each of which may have a narrow slit structure, which helps to increase light transmittance.

[0072] In some embodiments, the material of the common electrode layer 304 is a transparent conductive material; the material of the pixel electrode layer 303 is a transparent conductive material. Using a transparent conductive material helps to improve transmittance.

[0073] Optionally, the touch signal line 302 may be made of a metal material or a transparent conductive material.

[0074] It should be noted that the array substrate provided in the embodiment of the present disclosure can match various thin film transistors, such as low-temperature polysilicon, amorphous silicon materials or metal oxides, etc., and the present disclosure does not limit this.

[0075] Based on the same inventive concept, corresponding to the array substrate in any of the above embodiments, the present disclosure further provides a method for preparing the array substrate. Specifically, the preparation method includes:

[0076] A data line 301, a common electrode layer 304 and a pixel electrode layer 303 are formed on a substrate; wherein the data line 301 is located on a side of the common electrode layer 304 away from the pixel electrode layer 303;

[0077] The mask used to form the common electrode layer 304 includes an electrode pattern; the electrode pattern ensures that the orthographic projection of the hollowed-out area of ​​the common electrode layer 304 on the substrate does not overlap with the orthographic projection of the data line 301 on the substrate.

[0078] Optionally, the mask can be a positive mask or a negative mask, which is not limited in the present disclosure. It should be noted that the positive mask and the negative mask have opposite shapes.

[0079] Here, the preparation process of the common electrode layer 304 can be selected according to the material of the common electrode layer 304, and the present disclosure does not limit this.

[0080] In addition, the preparation process of the data line 301 and the pixel electrode layer 303 can also be flexibly selected according to needs, and the present disclosure does not limit this.

[0081] In some embodiments, it also includes:

[0082] A touch signal line 302 is formed on the substrate, wherein the width of the hollow region corresponding to the touch signal line is equal to the width of the touch signal line 302. Here, when the width of the touch signal line 302 is determined, a mask of a common electrode layer can be prepared according to the position and size characteristics of the touch signal line 302, so as to prepare a matching common electrode layer 304.

[0083] Optionally, the touch signal line 302 and the data line 301 are prepared in the same layer.

[0084] The preparation method of the above embodiment is used to prepare the corresponding array substrate in any of the above embodiments, and has the beneficial effects of the corresponding array substrate embodiment, which will not be described in detail here.

[0085] Based on the same inventive concept, corresponding to any array substrate in the above embodiments, the present disclosure further provides a touch display panel including any of the above array substrates.

[0086] Optionally, the touch display panel is a touch liquid crystal display panel. Here, the touch display panel may also include a first polarizer 101, a liquid crystal layer 103, a second polarizer 105, a color film, etc. This disclosure does not elaborate on this. It should be noted that the touch display panel may also include a backlight module, etc., which is not described in detail in this disclosure.

[0087] The touch display panel of the above embodiment includes the corresponding array substrate in any of the above embodiments, and has the beneficial effects of the corresponding array substrate embodiment, which will not be described in detail here.

[0088] Based on the same inventive concept, corresponding to any of the array substrates in the above embodiments, the present disclosure further provides a touch display device, which includes the above touch display panel.

[0089] Here, the touch display device may further include a control unit, and the control unit may be connected to the data line and the touch signal line to implement display control or touch control.

[0090] The touch display device of the above embodiment includes the corresponding array substrate in any of the above embodiments, and has the beneficial effects of the corresponding array substrate embodiment, which will not be described in detail herein.

[0091] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present disclosure as described above, which are not provided in detail for the sake of simplicity.

[0092] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present disclosure difficult to understand, the known power / ground connections to the integrated circuit (IC) chips and other components may or may not be shown in the provided figures. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present disclosure difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which the embodiments of the present disclosure will be implemented (that is, these details should be fully within the scope of understanding of those skilled in the art). Where specific details (e.g., circuits) are set forth to describe exemplary embodiments of the present disclosure, it is apparent to those skilled in the art that the embodiments of the present disclosure can be implemented without these specific details or with changes in these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0093] Although the present disclosure has been described in conjunction with specific embodiments of the present disclosure, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0094] The embodiments of the present disclosure are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. An array substrate, characterized in that: include: A data line, a common electrode layer and a pixel electrode layer are arranged on a substrate; wherein, The data line is located at a side of the common electrode layer away from the pixel electrode layer; The common electrode layer includes a hollow area for touch control partitioning; The orthographic projection of the hollow area on the substrate has no overlap with the orthographic projection of the data line on the substrate.

2. The array substrate according to claim 1, characterized in that: Also includes: A touch signal line; the orthographic projection of the touch signal line on the substrate is at least partially covered by the orthographic projection of the hollow area on the substrate.

3. The array substrate according to claim 2, characterized in that: It also includes a gate line, the data line and the touch signal line extend in directions crossing the gate line respectively, and an included angle between the data line and the gate line is smaller than an included angle between the touch signal line and the gate line.

4. The array substrate according to claim 3, characterized in that: The included angle between the touch signal line and the gate line is ≥88° and ≤90°.

5. The array substrate according to claim 2, characterized in that: The width of the hollow area corresponding to the touch signal line is equal to the width of the touch signal line.

6. The array substrate according to claim 2, characterized in that: The width of the hollow area corresponding to the touch signal line is ≥1.5 μm and ≤6.4 μm.

7. The array substrate according to claim 2, characterized in that: The touch signal line and the data line are located in the same layer.

8. The array substrate according to claim 1, characterized in that: The common electrode layer is located on a side of the pixel electrode layer close to the substrate.

9. The array substrate according to claim 1, characterized in that: The material of the common electrode layer is a transparent conductive material; the material of the pixel electrode layer is a transparent conductive material.

10. A method for preparing an array substrate, characterized in that: include: A data line, a common electrode layer and a pixel electrode layer are formed on a substrate; wherein the data line is located on a side of the common electrode layer away from the pixel electrode layer; The mask used to form the common electrode layer includes an electrode pattern; the electrode pattern ensures that the orthographic projection of the hollowed-out region of the common electrode layer on the substrate does not overlap with the orthographic projection of the data line on the substrate.

11. The preparation method according to claim 10, characterized in that: Also includes: A touch signal line is formed on the substrate; wherein the width of the hollow area corresponding to the touch signal line is equal to the width of the touch signal line.

12. A touch display panel, characterized in that: include: An array substrate as described in any one of claims 1 to 9.

13. A touch display device, characterized in that: include: The touch display panel as claimed in claim 12.

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