Touch display panel, display device and manufacturing method of display panel

Abstract

The application discloses a touch display panel, a display device and a manufacturing method of the display panel, wherein the touch layer comprises a plurality of first sensing units and a plurality of second sensing units, and the first sensing units and the second sensing units are arranged alternately; the first sensing unit is provided with a plurality of first hollows in the shape of a broken line along a first direction, any first hollow has at least one of a first chamfer and a second chamfer, the opening direction of the first chamfer is opposite to that of the second chamfer, and the first chamfer and the second chamfer of the same first hollow are arranged alternately; the second sensing unit comprises a plurality of second hollows in the shape of a broken line along the first direction, any second hollow has at least one of a third chamfer and a fourth chamfer, the opening direction of the third chamfer is opposite to that of the fourth chamfer, and the third chamfer and the fourth chamfer of the same second hollow are arranged alternately. The application can effectively improve the shadowing defect of the display panel.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a touch display panel, a display device, and a method for manufacturing the display panel. Background Technology

[0002] Capacitive touchscreen technology has developed rapidly. Currently, the mainstream capacitive touch technologies include three main types: in-cell, one-glass solution (OGS), and on-cell. Among these three technologies, On-cell technology has the simplest process flow, requires no additional equipment modification, and has low processing costs. On-cell technology further includes multi-layer on-cell (Mloc) and single-layer on-cell (Sloc) technologies. Compared to multi-layer on-cell displays, single-layer on-cell displays require only one exposure process to form the touch wiring, making the process simpler and thus widely adopted. However, while single-layer on-cell products have a significant cost advantage, they exhibit noticeable anti-aliasing defects, severely impacting the user experience. Therefore, a solution to improve anti-aliasing defects in display panels is urgently needed. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a touch display panel, a display device and a method for manufacturing the display panel, which can effectively improve the anti-aliasing problem of the display panel.

[0004] In a first aspect, this application provides the following technical solution through an embodiment:

[0005] A touch display panel, comprising:

[0006] A display substrate; a touch layer disposed on the light-emitting side of the display substrate, the touch layer comprising a plurality of first sensing units and a plurality of second sensing units, the first sensing units and the second sensing units being arranged alternately; the first sensing unit having a plurality of zigzag-shaped and discontinuous first cutouts along a first direction, each of the first cutouts having at least one of a first chamfer and a second chamfer, the opening direction of the first chamfer being opposite to the opening direction of the second chamfer, the first chamfer and the second chamfer being arranged alternately on the same first cutout; the second sensing unit comprising a plurality of zigzag-shaped and discontinuous second cutouts along the first direction, each of the second cutouts having at least one of a third chamfer and a fourth chamfer, the opening direction of the third chamfer being opposite to the opening direction of the fourth chamfer, the third chamfer and the fourth chamfer being arranged alternately on the same second cutout; the first chamfer and the third chamfer correspond to each other along a second direction and have opposite opening directions, the third chamfer and the fourth chamfer correspond to each other along the second direction and have opposite opening directions; the second direction is perpendicular to the first direction.

[0007] Optionally, a black matrix is ​​provided in the display substrate;

[0008] The projections of the chamfer positions of the first chamfer, the second chamfer, the third chamfer, and the fourth chamfer onto the target plane overlap with the projection of the light-shielding portion of the black matrix onto the target plane; the target plane is the plane on the display substrate where the touch layer is disposed.

[0009] Optionally, the display substrate is provided with a plurality of sub-pixels; the distance between the first chamfer and the second chamfer along the first direction is W, and the distance between the third chamfer and the fourth chamfer along the first direction is W; W is an integer multiple of the width of the sub-pixel along the first direction.

[0010] Optionally, the spacing between two adjacent first cutouts and the spacing between two adjacent second cutouts are both less than 20 μm.

[0011] Optionally, the touch layer is provided with a defining cutout; the defining cutout is provided between the first sensing unit and the second sensing unit, and a defining cutout is provided every alternate cycle.

[0012] Optionally, the touch layer is further provided with isolation cutouts, which are used to isolate the touch layer into multiple touch blocks; the first sensing unit and the second sensing unit are disposed in the touch blocks.

[0013] Optionally, the first chamfer and the third chamfer have the same angle, and the second chamfer and the fourth chamfer have the same angle.

[0014] Optionally, the first chamfer, the second chamfer, the third chamfer, and the fourth chamfer all have the same angle.

[0015] Optionally, the display substrate is provided with multiple sub-pixels, and both the first cutout and the second cutout include multiple cutout units. The first angle corresponding to the first cutout and the second angle corresponding to the second cutout both satisfy the following:

[0016] A = arctan a b Where A is the angle size, a is the width of the sub-pixel along the second direction, b is the width of the sub-pixel along the first direction, the first angle is the angle between the first hollowed-out unit and the first direction, and the second angle is the angle between the second hollowed-out unit and the first direction.

[0017] Secondly, based on the same inventive concept, this application provides the following technical solution through an embodiment:

[0018] A method for manufacturing a display panel, comprising:

[0019] A display substrate is manufactured; a touch layer is formed on the light-emitting side of the display substrate; wherein the touch layer includes a plurality of first sensing units and a plurality of second sensing units, the first sensing units and the second sensing units being arranged alternately; the first sensing unit is provided with a plurality of zigzag and discontinuous first cutouts along a first direction, each of the first cutouts having at least one chamfer, a first chamfer and a second chamfer, the opening direction of the first chamfer being opposite to the opening direction of the second chamfer, the first chamfer and the second chamfer being arranged alternately on the same first cutout; the second sensing unit includes a plurality of zigzag and discontinuous second cutouts along the first direction, each of the second cutouts having at least one chamfer, a third chamfer and a fourth chamfer, the opening direction of the third chamfer being opposite to the opening direction of the fourth chamfer, the third chamfer and the fourth chamfer being arranged alternately on the same second cutout; the first chamfer and the third chamfer correspond to each other along a second direction and have opposite opening directions, the third chamfer and the fourth chamfer correspond to each other along the second direction and have opposite opening directions; the second direction is perpendicular to the first direction.

[0020] Thirdly, based on the same inventive concept, this application provides the following technical solution through an embodiment:

[0021] A display device comprising a touch display panel as described in any of the first aspects above, or a touch display panel manufactured by the manufacturing method described in the second aspect above.

[0022] This invention provides a touch display panel, a display device, and a method for manufacturing the display panel. In the first and second sensing units, the opening directions of the first chamfer and the second chamfer are opposite, and the first and second chamfers along the same first hollow section are arranged alternately. The opening directions of the third and fourth chamfers are opposite, and the third and fourth chamfers along the same second hollow section are arranged alternately. The first and third chamfers correspond to each other along a second direction and have opposite opening directions, as do the third and fourth chamfers. The second direction is perpendicular to the first direction. This touch layer structure design enables a more scattered strip-shaped hollow arrangement, while achieving near-symmetrical design between adjacent sensing units, effectively suppressing ghosting issues and ensuring a better display effect.

[0023] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the touch layer partitioning of a touch display panel;

[0026] Figure 2 A schematic diagram illustrating the effect of anti-reflection defects on the display panel;

[0027] Figure 3 This is a schematic diagram of the structure of the touch display panel in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the first sensing unit and the second sensing unit of the touch layer in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the strip-shaped cutout pattern of the touch layer in an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the strip-shaped hollow structure in an embodiment of the present invention;

[0031] Figure 6A This is a schematic diagram of another implementation structure of the first and second hollowing in the embodiments of the present invention;

[0032] Figure 6B This is a schematic diagram of another implementation structure of the first and second hollowing in the embodiments of the present invention;

[0033] Figure 7 This is a schematic diagram showing the position of the chamfered strip and the position of the black matrix in an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram illustrating the positions of the defined and isolated cutouts in an embodiment of the present invention;

[0035] Figure 9 This is a comparative structural diagram of different touch layer patterns in an embodiment of the present invention;

[0036] Figure 10 for Figure 9 (d) is a schematic diagram of the strip-shaped hollowed-out periodic cycle;

[0037] Figure 11 This is a schematic diagram of the quantization comparison results in an embodiment of the present invention;

[0038] Figure 12 This is a flowchart of a method for manufacturing a display panel according to an embodiment of the present invention. Detailed Implementation

[0039] Embodiments of the present disclosure will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the disclosure. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concepts of the present disclosure.

[0040] The accompanying drawings illustrate various structural schematics according to embodiments of the present disclosure. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0041] In the context of this disclosure, when a layer / element is referred to as being "above" another layer / element, the layer / element may be directly above the other layer / element, or there may be an intermediate layer / element between them. Additionally, if a layer / element is "above" another layer / element in one orientation, then when the orientation is reversed, the layer / element may be "below" the other layer / element.

[0042] Please see Figure 1Analysis revealed that the single-layer embedded display panel 10 includes a pixel layer 11, a glass substrate 12, and a touch layer 13 stacked sequentially. The touch layer 13, formed above the glass substrate 12, has a transparent conductive region 131 and a non-transparent conductive region 132. The direct cause of the image cancellation defect is the difference in reflectivity between the transparent conductive region 131 and the non-transparent conductive region 132 of the touch layer 13, using a transparent conductive film such as ITO (indium tin oxide) film. Under light illumination, the inconsistent orientation of the boundary between the transparent conductive region 131 and the non-transparent conductive region 132 creates a grating with inconsistent brightness, resulting in the image cancellation defect. Figure 2 The area shown is region A.

[0043] Therefore, this invention provides a touch display panel. By redesigning the touch layer of the touch display panel, the anti-aliasing defects of the display panel can be further optimized without changing the circuit board pin map (FPC PinMap) corresponding to the touch layer. This invention provides a touch display panel, and the touch type of the touch display panel is not limited. In this embodiment, the touch type of the touch display panel can be a single-layer external touch display panel, and the touch layer of the touch display panel can be a self-capacitive touch layer. Of course, in other embodiments, other touch display panels with different touch types can be used. If the touch layer causes the anti-aliasing defects seen in this embodiment, the same or similar structural design of the touch display panel in this embodiment can also be adopted to achieve the same or similar technical effects. The overall concept of this invention will be described and illustrated below through specific embodiments.

[0044] Please see Figure 3 The touch display panel 200 provided in this embodiment includes a display substrate 210 and a touch layer 220 disposed on the light-emitting side of the display substrate 210. In addition, it may also include structures such as a cover plate disposed on the side of the touch layer 220 away from the display substrate, but these will not be described in detail in this embodiment.

[0045] The display substrate 210 is the light-emitting and display portion of the touch display panel 200. The touch display panel 200 can be either an LCD (Liquid Crystal Display) or an OLED (Organic Light-Emitting Diode) type touch display panel, without limitation. Taking an LCD type touch display panel 200 as an example, the display substrate 210 may include a backlight module, a TFT (Thin Film Transistor) array substrate disposed on one side of the backlight module, a color resist layer disposed on the side of the TFT array substrate away from the backlight source, and a liquid crystal layer filled between the color resist layer and the TFT array substrate; of course, in some embodiments, the display substrate 210 may also include a complete color filter substrate, without limitation. Other possible implementations of the display substrate 210 can be understood with reference to existing technology and will not be elaborated here.

[0046] The touch layer 220 is disposed on the light-emitting side of the display substrate 210. For example, the touch layer 220 may be disposed on the light-emitting side of the color resist layer. It is understood that other protective layers or insulating layers may also be disposed between the touch layer 220 and the color resist layer; for example, a planarization layer and / or a glass substrate may also be disposed between the touch layer 220 and the color resist layer. Alternatively, the touch layer 220 may also be manufactured on the color filter layer. Of course, the interlayer positions of the touch layer 220 can be implemented with reference to existing commonly used design methods and are not limited.

[0047] Please see Figure 4 The touch layer 220 includes multiple first sensing units 221 and multiple second sensing units 222, which together form the entire touch pattern. The first sensing units 221 and second sensing units 222 are arranged alternately. Each first sensing unit 221 has multiple discontinuous, zigzag-shaped first splits 2211 along a first direction. Each first split 2211 has at least one chamfer (e.g., a first chamfer and a second chamfer). Figure 4 The diagram shows a first chamfer 1 and a second chamfer 2. The opening direction of the first chamfer is opposite to that of the second chamfer. The first and second chamfers of the same first hollow 2211 are arranged alternately. By alternating the first and second chamfers, the overall orientation of the first hollow 2211 can be in the first direction. Figure 5As shown, the alternation of the first and second chamfers causes the direction B to change alternately. The second sensing unit 222 includes multiple discontinuous, zigzag-shaped second cutouts 2221 along the first direction. Each second cutout 2221 has at least one chamfer, either a third or a fourth chamfer. The opening directions of the third and fourth chamfers are opposite, and the third and fourth chamfers of the same second cutout 2221 are arranged alternately. By alternating the third and fourth chamfers, the overall direction of the second cutout 2221 is ensured to be in the first direction. Figure 5 As shown, the alternation of the third and fourth chamfers causes the direction C to change alternately.

[0048] It should be noted that there may be a short first cutout 2211 or second cutout 2221 at the junction of the first sensing unit 221 and the second sensing unit 222. This cutout has only one chamfer. For example, Figure 4 The first hollowed-out section 2211a.

[0049] Please see Figure 6 The first cutout 2211 and the second cutout 2221 are discontinuous cutout designs, meaning that either a first cutout 2211 or a second cutout 2221 can include cutout units 223, or include cutout units 223 and discontinuity units 224. The length of each cutout and the length of each discontinuity can be the same or different. On two adjacent cutouts, the cutout units 223 on one cutout and the cutout units 223 on the other cutout can not be directly opposite each other in the second direction to achieve a more scattered arrangement.

[0050] In some implementations, within a first zigzag-shaped cutout 2211, the length of a cutout unit 223 can be greater than the length of a discontinuous unit 224, or the length of a cutout unit 223 can be less than the length of a discontinuous unit 224, or the length of a cutout unit 223 can be equal to the length of a discontinuous unit 224. Of course, the relationship between the lengths of the cutout unit 223 and the discontinuous unit 224 can be set based on the manufacturing process and the required resistance conditions. For example, a cutout unit 223 that is greater than the length of a discontinuous unit 224 can achieve better self-capacitive sensing sensitivity; the length of the cutout unit 223 can be 2 times, 3 times, 5 times, etc., of the length of the discontinuous unit 224, without limitation.

[0051] Understandably, a first cutout 2211 or a second cutout 2221 formed by the cutout unit 223 and the interruption unit 224 can generally be presented as a "dashed line" shape. Both the first cutout 2211 and the second cutout 2221 can be strip-shaped. The width of the "dashed line" (or cutout unit) can be around 10um, without limitation, and can be determined based on parameters such as the pixel density of the touch display panel 200, for example, 6um to 15um, specifically 6um, 8um, 12um, 14um, etc. Furthermore, by employing the zigzag-shaped first cutout 2211 and second cutout 2221 design of this application, the minimum spacing between two adjacent cutouts, or the spacing between two adjacent "dashed lines," can be controlled to be less than or equal to 10µm. Compared to a complete and continuous zigzag design (with a spacing greater than 20µm between zigzag lines), the issue of cutout breaks does not need to be considered, and this spacing value can be significantly reduced. That is, the spacing between two adjacent first cutouts and the spacing between two adjacent second cutouts can both be less than 20µm. Specifically, this spacing value can be 6µm to 15µm, for example, 6µm, 8µm, 12µm, 14µm, etc. At the same time, this spacing value can be flexibly adjusted based on process, screen parameters, etc. This implementation method can be well applied to small-sized display panels of 2 to 4 inches to improve anti-aliasing issues.

[0052] Furthermore, the first and third chamfers correspond to each other along the second direction but have opposite opening directions, and the third and fourth chamfers correspond to each other along the second direction but have opposite opening directions; the second direction is perpendicular to the first direction. This method can achieve a more consistent viewing effect in different directions, such as... Figure 4 or Figure 5 As shown. Furthermore, the implementation methods of the first cutout 2211 and the second cutout 2221 are as follows: Figure 4 In addition to what is shown, it can also be as follows Figure 6A and Figure 6B As shown. In Figure 6A In the middle, the chamfers of the first cutout 2211b and the second cutout 2221b are not completely aligned one-to-one in the second direction, but rather, every other set of chamfers exists in a set of chamfers that are completely aligned in the second direction (i.e., the set marked by the dotted line). Figure 6B In the first and second cutouts 2211c, the corresponding chamfers are facing each other in the second direction, but their angles can be different. The first and third chamfers are different in size, and the second and fourth chamfers are different in size.

[0053] Furthermore, this structural arrangement ensures that adjacent first sensing units 221 and second sensing units 222 are arranged in a more scattered manner. That is, for adjacent first sensing units 221 and second sensing units 222, at the corresponding positions in the second direction, the arrangement direction of the first cutout 2211 is completely different from that of the second cutout 2221. Therefore, a more scattered arrangement can be achieved, avoiding the situation where multiple adjacent and side-by-side cutout sides in the touch layer 220 present the same direction. This can effectively solve the problem of poor image removal when viewing the touch display panel 200 from the side. At the same time, the first sensing units 221 and second sensing units 222 form a periodic alternation (one first sensing unit 221 and an adjacent second sensing unit 222 form one cycle), which reduces the cycle of the touch pattern and can significantly alleviate the poor image removal caused by the grating effect of the zigzag first cutout 2211 and second cutout 2221.

[0054] In some implementations, the first cutouts 2211 in the first sensing unit 221 can be parallel to each other, and the parallelism can be a generally parallel one with some error; similarly, the second cutouts 2221 in the second sensing unit 222 can also be parallel to each other or generally parallel to each other, ensuring a better touch sensing effect. The illustrations in this embodiment only show a schematic diagram of the structure in which the cutouts are parallel to each other.

[0055] Please see Figure 7In some implementations, the display substrate 210 is provided with a black matrix and multiple sub-pixels. The black matrix can be positioned between the sub-pixels to block light from the sub-pixels and prevent crosstalk between them. For example, the black matrix can be the black matrix in the color filter substrate of the display substrate 210. The projections of the chamfer positions 225 of the first, second, third, and fourth chamfers onto the target plane overlap with the projections of the light-blocking portions of the black matrix onto the target plane, which is the plane on which the touch layer is disposed of on the display substrate. For example, the projection of the chamfer position 225 onto the surface of the display substrate 210 near the touch layer 220 overlaps with the projection of the light-blocking portions of the black matrix onto the surface of the display substrate 210 near the touch layer 220. These chamfer positions 225 of the first cutout 2211 and the second cutout 2221 produce a sharp grating transition. After being blocked by the black matrix, moiré patterns or rainbow patterns can be effectively suppressed, especially suitable for 1P2D and 2P2D pixel structures. 1P2D refers to a pixel structure with one type of pixel ITO (transparent conductive layer connecting pixel electrodes) design and two types of dot structures. That is, the pixel ITO is the same design, but the SD lines connected to the pixel ITO are not the same in the two types of dot structures. They are arranged in alternating rows of Dot1 and Dot2 to fill the entire AA area (Active Area). Similarly, there are 1P1D (only one type of pixel ITO design and one type of dot structure) and 2P2D (two types of pixel designs, one pixel corresponding to one type of dot structure), etc. These different pixel structures are used to achieve the dot inversion and column inversion functions of the AA area. Different pixel structures are selected according to different PPI (Pixels Per Inch) and refresh rates to avoid malfunctions.

[0056] In some implementations, the distance between the first and second chamfers along the first direction is W, and the distance between the third and fourth chamfers along the first direction is W; W is an integer multiple of the width of the sub-pixel along the first direction; for example, the multiple is 1, 2, 3, 4, 5, etc. Specifically, it can be expressed as W = N * b, where N is a positive integer and b is the width of the sub-pixel along the first direction. That is to say, in two adjacent sensing units, the first and third chamfers correspond one-to-one, and the second and fourth chamfers correspond one-to-one, making the two adjacent sensing units more symmetrical. At the same time, the chamfer position 225 can also be designed precisely to the position of the black matrix, avoiding moiré or rainbow pattern defects caused by the lamp.

[0057] Furthermore, the number of perforated strips included in the first sensing unit 221 and the second sensing unit 222 can be more than one, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 14, 20, etc., without limitation. Figure 4 As shown, seven first cutouts 2211, sequentially labeled a, b, c, d, e, f, g, and seven corresponding second cutouts 2221, labeled g, f, e, d, c, b, a, can form a near-symmetrical effect of abcdefg│gfedcba, achieving a more consistent viewing effect in different directions. Specifically, after determining the width of the sensing unit, the number of cutouts can be determined based on the process and the required resistance. In some implementations, when using an ITO touch layer 220, the width X along the second direction of each pair of matched sensing units can be determined to be approximately 1600µm, or even approximately 500µm. This means that the width of the sensing units at different locations can be different; for example, the width X can be adjusted between 450µm and 1650µm. The center of the touch display panel 200 can be wider, while the edges can be narrower, improving recognition accuracy near the edges and avoiding accidental touches. The width of a single sensing unit can be approximately 225µm to 825µm, which can better avoid moiré or rainbow-like defects caused by LED illumination. Figure 8 As shown; specifically, the width of each pair of matched sensing units can be 500um, 600um, 800um, 1200um, 1400um, 1500um, 1550um, 1600um, 1650um, 1700um, 1750um, etc.

[0058] Please continue reading. Figure 8In some implementations, a defining cutout 226 is also provided in the touch layer 220. The defining cutout 226 can be set between the first sensing unit 221 and the second sensing unit 222, and a defining cutout 226 is set every alternate cycle. It can be understood that the defining cutout 226 can divide the touch layer 220 into different recognition units, enabling more accurate touch recognition. The defining cutout 226 can be a continuous cutout, or it can be a zigzag-shaped defining cutout 226. The zigzag shape of the defining cutout 226 can be the same as the zigzag shape of the first cutout 2211 or the second cutout 2221, so as to achieve a parallel or nearly parallel arrangement with the first cutout 2211 or the second cutout 2221, ensuring the consistency of each recognition unit. Dividing two adjacent first sensing units 221 and second sensing units 222 into a whole recognition unit can ensure that a recognition unit is more symmetrical while achieving a scattered cutout, ensuring the consistency of recognition effect of different recognition units. It should be noted that when the number of cutouts in a sensing unit is a base number, there can be a recognition unit consisting of a single sensing unit.

[0059] For further information, please refer to [link / reference]. Figure 8 An isolation cutout 227 is also provided in the touch layer 220 to form a dummy area. The isolation cutout 227 is used to isolate the touch layer 220 into multiple touch blocks; the first sensing unit 221 and the second sensing unit 222 are disposed in the touch blocks. It is understood that a touch block may include one or more recognition units, such as a 5×5 touch recognition point; of course, the touch blocks can also be of different sizes, for example, the touch blocks in the middle of the touch display panel 200 can be larger, and the touch blocks at the edges can be smaller. By dividing the touch layer 220 into multiple touch blocks through the isolation cutout 227, signal crosstalk between different recognition units can be effectively suppressed when the touch layer 220 transmits touch signals, improving the accuracy of touch recognition. The isolation cutout 227 can be composed of multiple parallel isolation sub-cutouts to ensure a certain width and achieve the effect of preventing signal crosstalk. The outermost isolator cutout should be a continuous cutout to ensure signal isolation. The isolator cutout can also be a zigzag cutout design, and the zigzag shape of the isolator cutout can be the same as the zigzag shape of the first cutout 2211 or the second cutout 2221, such as the isolator cutout spacing, chamfers, etc. being the same or similar, thereby avoiding visual differences in certain parts of the touch display panel 200.

[0060] In some implementations, the first sensing unit 221 and the second sensing unit 222 can be designed to be more symmetrical. Specifically, the angles of the first and third chamfers can be set to be the same, and the angles of the second and fourth chamfers can be set to be the same.

[0061] Furthermore, the angles of the first, second, third, and fourth chamfers can be set to be identical, so that adjacent first sensing units 221 and second sensing units 222 achieve a near-perfect symmetry, allowing users to achieve essentially the same visual effect when viewing the touch display panel 200 from different directions. It is understood that in this implementation, the area occupied by any sensing unit lies between a set of parallel lines on the plane of the touch layer 220.

[0062] To achieve a scattered distribution of the first and second cutouts 2211 and 2221, and to better symmetry between adjacent first sensing units 221 and second sensing units 222, the first angle corresponding to the first cutout 2211 and the second angle corresponding to the second cutout 2221 can be designed to both satisfy: A = arctan a b Where A is the angle size, a is the width of the sub-pixel along the second direction, b is the width of the sub-pixel along the first direction, the first angle is the angle between the first cutout 2211 and the first direction, and the second angle is the angle between the second cutout 2221 and the second direction, as shown below. Figure 8 As shown. In addition, through the above structural constraints, the angles of the first cutout 2211 and the second cutout 2221 are better matched with the size of the sub-pixels, thereby suppressing shadow removal while avoiding moiré or rainbow defects caused by lamp illumination.

[0063] The technical effects of the touch display panel 200 in this embodiment will be explained below using specific comparative examples. For comparison, this embodiment also provides various hollow designs for the touch layer 220, such as... Figure 9 As shown in the figure below and the table below:

[0064]

[0065] Figure a shows a complete polygonal design, now reduced to one-third the size of the original graphic compared to existing technology; b shows a symmetrical polygonal (rhombus) design; c shows a symmetrical polygonal (rhombus) design with a period one-third of that of graphic b; d shows a graphic design consisting only of the first or second cutout 2211 in this application (single-fold graphic), also known as a "caterpillar" design (a common term in the industry). Through direct human observation, a shorter period helps reduce the degree of shadow removal, but the improvement is limited.

[0066] Furthermore, in the single-fold graphic design of d, the arrangement of the hollowed-out lines is completely identical. Figure 10For example, the zigzag-shaped cutouts are arranged in a cyclic pattern of abcdbe, bcdbe, ..., bcdbe. The degree of image cancellation and visual effect may differ between the second and opposite viewing angles, affecting viewing quality. Therefore, the double-fold design formed by the first sensing unit 221 and the second sensing unit 222 of the touch display panel 200 in this embodiment can significantly improve image cancellation while ensuring consistency in the degree of image cancellation and visual effect across different viewing angles.

[0067] Furthermore, the design of the touch display panel 200 in this embodiment is compared with the design of the display panel before the improvement. The comparison method is to use current moiré and rainbow pattern simulation programs for quantitative comparison, such as... Figure 11 As shown, where Figure 11 (a) The simulation results before improvement Figure 11 (b) Simulation results of this embodiment. The results show that the quantization result of the touch display panel 200 design in this embodiment is 0.493, while the quantization result before improvement is 0.634. The lower the simulation value, the lower the degree of moiré and rainbow patterns. Therefore, the improvement of anti-reflection also reduces the degree of moiré and rainbow patterns to a certain extent, proving that the touch layer 220 design of the touch display panel 200 in this embodiment is universally applicable to solving various defects corresponding to transmitted and reflected light in SLOC products.

[0068] In summary, the touch layer 220 of the touch display panel 200 provided in this embodiment of the invention includes a first sensing unit 221 and a second sensing unit 222. In the first sensing unit 221 and the second sensing unit 222, the opening directions of the first chamfer and the second chamfer are opposite, and the first and second chamfers of the same first cutout 2211 are arranged alternately. The opening directions of the third chamfer and the fourth chamfer are opposite, and the third and fourth chamfers of the same second cutout 2221 are arranged alternately. The first and third chamfers correspond to each other along the second direction and have opposite opening directions, and the third and fourth chamfers correspond to each other along the second direction and have opposite opening directions. The second direction is perpendicular to the first direction. This touch layer 220 structural design can achieve a more scattered strip-shaped cutout arrangement, while achieving a near-symmetrical design between adjacent sensing units, effectively suppressing poor image cancellation and ensuring a better display effect.

[0069] Please see Figure 12 Based on the same inventive concept, one embodiment of the present invention also provides a method for manufacturing a display panel, which can be used to manufacture the touch display panel in the foregoing embodiment. The manufacturing method includes:

[0070] Step S10: Manufacturing the display substrate;

[0071] Step S20: A touch layer is formed on the light-emitting side of the display substrate; wherein the touch layer includes a plurality of first sensing units and a plurality of second sensing units, the first sensing units and the second sensing units are arranged alternately; the first sensing unit is provided with a plurality of zigzag and discontinuous first cutouts along a first direction, each of the first cutouts having at least one chamfer, a first chamfer and a second chamfer, the opening direction of the first chamfer and the opening direction of the second chamfer are opposite, the first chamfer and the second chamfer of the same first cutout are arranged alternately; the second sensing unit includes a plurality of zigzag and discontinuous second cutouts along the first direction, each of the second cutouts having at least one chamfer, a third chamfer and a fourth chamfer, the opening direction of the third chamfer and the opening direction of the fourth chamfer are opposite, the third chamfer and the fourth chamfer of the same second cutout are arranged alternately; the first chamfer and the third chamfer correspond to each other along a second direction and have opposite opening directions, the third chamfer and the fourth chamfer correspond to each other along the second direction and have opposite opening directions; the second direction is perpendicular to the first direction.

[0072] It should be noted that the manufacturing method of the display panel provided in this embodiment can refer to the structure formed by each step, as described in the foregoing structural embodiments. The beneficial effects produced have been described in the foregoing embodiments concerning touch display panels, and will not be repeated here. The specific process implementation of each structure can adopt existing process technologies, and is not limited in this embodiment.

[0073] Based on the same inventive concept, this embodiment of the invention also provides a display device, including any of the aforementioned touch display panels, or including touch display panels manufactured by the aforementioned manufacturing method.

[0074] It should be noted that the structures or manufacturing methods of the display device provided in this embodiment can all refer to the aforementioned structural embodiments. The beneficial effects produced have been described in the aforementioned embodiments concerning the touch display panel. For details, please refer to the aforementioned embodiments concerning the touch display panel. They will not be repeated in this embodiment.

[0075] The above description does not provide detailed explanations of the technical aspects of each layer's patterning, etching, etc. However, those skilled in the art should understand that various technical means can be used to form layers and regions of the desired shape. Furthermore, to form the same structure, those skilled in the art can also design methods that are not entirely identical to those described above. Additionally, although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination.

[0076] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0077] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A touch display panel, characterized in that, The display substrate comprises: a display substrate; a touch layer arranged on the light-emitting side of the display substrate, the touch layer comprising a plurality of first sensing units and a plurality of second sensing units, the first sensing units and the second sensing units being arranged alternately; each of the first sensing units is provided with a plurality of first hollows in the shape of broken lines along a first direction, any of the first hollows has at least one of a first chamfer and a second chamfer, the opening direction of the first chamfer is opposite to that of the second chamfer, and the first chamfer and the second chamfer of the same first hollow are arranged alternately; each of the second sensing units comprises a plurality of second hollows in the shape of broken lines along the first direction, any of the second hollows has at least one of a third chamfer and a fourth chamfer, the opening direction of the third chamfer is opposite to that of the fourth chamfer, and the third chamfer and the fourth chamfer of the same second hollow are arranged alternately; the first chamfer and the third chamfer correspond to each other along a second direction and have opposite opening directions, and the third chamfer and the fourth chamfer correspond to each other along the second direction and have opposite opening directions; the second direction is perpendicular to the first direction; the display substrate is provided with a plurality of sub-pixels, the first hollows and the second hollows each comprise a plurality of hollow units, and a first angle corresponding to the first hollows and a second angle corresponding to the second hollows each satisfy: A=arctan a / b, wherein A is the angle size, a is the width of the sub-pixel along the second direction, b is the width of the sub-pixel along the first direction, the first angle is the included angle between the hollow unit of the first hollow and the first direction, and the second angle is the included angle between the hollow unit of the second hollow and the first direction. 2.The touch display panel of claim 1, wherein, the display substrate is provided with a black matrix; the projection of the chamfer position of each of the first chamfer, the second chamfer, the third chamfer and the fourth chamfer on a target plane overlaps with the projection of the light-blocking part of the black matrix on the target plane; the target plane is the plane on which the display substrate is provided with the touch layer. 3.The touch display panel of claim 1, wherein, the display substrate is provided with a plurality of sub-pixels; the distance between the first chamfer and the second chamfer along the first direction is W, and the distance between the third chamfer and the fourth chamfer along the first direction is W; W is an integer multiple of the width of the sub-pixel along the first direction. 4.The touch display panel of claim 1, wherein, The distance between adjacent two first hollows and the distance between adjacent two second hollows are both less than 20 um. 5.The touch display panel of claim 1, wherein, The touch layer is provided with a boundary hollow, the boundary hollow is arranged between the first sensing units and the second sensing units, and one boundary hollow is arranged every other alternating period. 6.The touch display panel of claim 1, wherein, The touch layer is further provided with an isolation hollow, the isolation hollow is used for isolating the touch layer into a plurality of touch blocks, and the first sensing units and the second sensing units are arranged in the touch blocks. 7.The touch display panel according to any one of claims 1-6, wherein, The angle size of the first chamfer and the third chamfer is the same, and the angle size of the second chamfer and the fourth chamfer is the same. 8.The touch display panel according to any one of claims 1-6, wherein, The first chamfer, the second chamfer, the third chamfer and the fourth chamfer have the same angle.

9. A manufacturing method of a display panel, characterized by, Comprise: Manufacturing a display substrate; Forming a touch layer on the light-emitting side of the display substrate; The touch layer comprises a plurality of first sensing units and a plurality of second sensing units, and the first sensing units and the second sensing units are arranged alternately; the first sensing units are provided with a plurality of first hollows in the form of broken lines in the first direction, any first hollow has at least one chamfer selected from a first chamfer and a second chamfer, the opening direction of the first chamfer is opposite to that of the second chamfer, and the first chamfer and the second chamfer of the same first hollow are arranged alternately; the second sensing units comprise a plurality of second hollows in the form of broken lines in the first direction, any second hollow has at least one chamfer selected from a third chamfer and a fourth chamfer, the opening direction of the third chamfer is opposite to that of the fourth chamfer, and the third chamfer and the fourth chamfer of the same second hollow are arranged alternately; the first chamfer and the third chamfer correspond to each other in a second direction and have opposite opening directions, and the third chamfer and the fourth chamfer correspond to each other in the second direction and have opposite opening directions; the second direction is perpendicular to the first direction; The display substrate is provided with a plurality of sub-pixels, the first hollow and the second hollow each comprise a plurality of hollow units, and a first angle corresponding to the first hollow and a second angle corresponding to the second hollow each satisfy: wherein, is an angle size, is a width of the sub-pixel along the second direction, is a width of the sub-pixel along the first direction, the first angle is an included angle between a hollow unit of the first hollow and the first direction, and the second angle is an included angle between a hollow unit of the second hollow and the first direction.

10. A display device, characterized by comprising: The touch display panel manufactured by the manufacturing method of claim 9.

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