Touch display panel and display apparatus

Abstract

A touch display panel and a display apparatus. In the touch display panel, orthographic projections of sub-pixels (20) on a substrate (10) are located within an orthographic projection, which is on the substrate (10), of a grid formed by touch electrode lines (310). A first sub-pixel (210) among the plurality of sub-pixels (20) emits green light, and a second sub-pixel (220) and the first sub-pixel (210) emit different colors of light. The maximum distance between the orthographic projection of the first sub-pixel (210) on the substrate (10) and the orthographic projections of the touch electrode lines (310) on the substrate (10) is a first sub-pixel distance (G), and the maximum distance between the orthographic projection of the second sub-pixel (220) on the substrate (10) and the orthographic projections of the touch electrode lines (310) on the substrate (10) is a second sub-pixel distance (B), the first sub-pixel distance (G) being less than the second sub-pixel distance (B).

Description

Touch display panel and display device

[0001] This application claims priority to Chinese Patent Application No. 202411053694.5, filed with the Chinese Patent Office on August 1, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, such as a touch display panel and display device. Background Technology

[0003] In touch display panels of related technologies, the presence of touch electrode lines can cause the light emitted from sub-pixels to be blocked by the touch electrode lines at wide viewing angles, which in turn causes the color of the touch display panel to change at wide viewing angles, resulting in color shift problems.

[0004] Summary of the Invention

[0005] This application provides a touch display panel and a display device to reduce the degree of occlusion of the second sub-pixel by the touch electrode line at a large viewing angle, thereby balancing the visible light intensity of the first sub-pixel and the visible light intensity of the second sub-pixel, and improving the large viewing angle angle deviation problem of the touch display panel.

[0006] In a first aspect, embodiments of this application provide a touch display panel, the touch display panel including a substrate;

[0007] Multiple sub-pixels are located on one side of the substrate;

[0008] A touch electrode layer, located on the side of the sub-pixel away from the substrate, includes touch electrode lines; the orthographic projection of the sub-pixel on the substrate lies within the orthographic projection of the grid formed by the touch electrode lines on the substrate.

[0009] The plurality of sub-pixels include a first sub-pixel and a second sub-pixel, wherein the first sub-pixel emits green light and the second sub-pixel emits a different color than the first sub-pixel;

[0010] The maximum distance between the orthographic projection of the first sub-pixel on the substrate and the orthographic projection of the touch electrode line on the substrate is the first sub-pixel distance; the maximum distance between the orthographic projection of the second sub-pixel on the substrate and the orthographic projection of the touch electrode line on the substrate is the second sub-pixel distance; and the first sub-pixel distance is less than the second sub-pixel distance.

[0011] Secondly, embodiments of this application also provide a display device, including a touch display panel and a power module as described in the first aspect. Attached Figure Description

[0012] Figure 1 is an enlarged structural schematic diagram of a touch display panel provided in one embodiment;

[0013] Figure 2 is an enlarged structural schematic diagram of a touch display panel provided in an embodiment of this application;

[0014] Figure 3 is a schematic cross-section of Figure 1 along the A-A' direction;

[0015] Figure 4 is a schematic diagram of a color shift trajectory provided in an embodiment of this application;

[0016] Figure 5 is a schematic diagram of another color shift trajectory provided in an embodiment of this application;

[0017] Figure 6 is an enlarged schematic diagram of a second sub-pixel provided in an embodiment of this application;

[0018] Figure 7 is an enlarged schematic diagram of a third sub-pixel provided in an embodiment of this application;

[0019] Figure 8 is an enlarged structural schematic diagram of another touch display panel provided in an embodiment of this application;

[0020] Figure 9 is an enlarged structural schematic diagram of another touch display panel provided in an embodiment of this application;

[0021] Figure 10 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application;

[0022] Figure 11 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application;

[0023] Figure 12 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application;

[0024] Figure 13 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application;

[0025] Figure 14 is an enlarged schematic diagram of another third sub-pixel provided in an embodiment of this application;

[0026] Figure 15 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application;

[0027] Figure 16 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application;

[0028] Figure 17 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application;

[0029] Figure 18 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application;

[0030] Figure 19 is an enlarged schematic diagram of a first sub-pixel provided in an embodiment of this application;

[0031] Figure 20 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application;

[0032] Figure 21 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application;

[0033] Figure 22 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application;

[0034] Figure 23 is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation

[0035] Figure 1 is an enlarged structural schematic diagram of a touch display panel provided in an embodiment. Referring to Figure 1, in this touch display panel, touch electrode lines 10' are typically disposed above the organic light-emitting layer. Considering touch performance factors, the touch electrode lines 10' are usually positioned between two adjacent sub-pixels 20'. In this case, the distance between the touch electrode lines and the two adjacent sub-pixels 20' is the same. However, since the light-emitting areas of different sub-pixels 20' are different, the touch electrode lines 10' will block the sub-pixels with different light-emitting areas to different degrees. For example, in the embodiment shown in Figure 1, the two adjacent sub-pixels 20' include a blue photonic pixel 210' and a green photonic pixel 220'. The distance between the touch electrode lines 10' and the blue photonic pixel 210' is the same as the distance between the touch electrode lines 10' and the green photonic pixel 220'. Because the light-emitting area of ​​the blue photonic pixel 210' is larger than that of the green photonic pixel 220', the touch electrode line 10' will block the blue photonic pixel 210' to a greater extent than the green photonic pixel 220' at wide viewing angles. This results in the visible brightness of the green photonic pixel 220' being greater than that of the blue photonic pixel 210' at wide viewing angles, causing the touch display panel to appear greenish at wide viewing angles, i.e., a color shift problem at wide viewing angles. The degree of blockage can be understood as the ratio of the area of ​​a sub-pixel that is blocked and therefore not visible to the human eye at wide viewing angles to the total visible area of ​​that sub-pixel. A wide viewing angle can be understood as an angle of tilted observation, such as greater than 45° or greater than 60°.

[0036] To address the aforementioned issues, this application provides a touch display panel in which a first sub-pixel emits green light, and a second sub-pixel emits a different color than the first sub-pixel. The maximum distance between the orthographic projection of the first sub-pixel onto the substrate and the orthographic projection of the touch electrode line onto the substrate is set to be smaller than the maximum distance between the orthographic projections of the second sub-pixel and the touch electrode line onto the substrate. For example, when the distance between the first and second sub-pixels is changed by moving the touch electrode line, the first sub-pixel distance being smaller than the second sub-pixel distance means that the maximum distance between the orthographic projections of the first sub-pixel and the touch electrode line onto the substrate is increased, while the maximum distance between the orthographic projections of the second sub-pixel and the touch electrode line onto the substrate is decreased. This not only reduces the degree of occlusion of the second sub-pixel by the touch electrode line at wide viewing angles but also increases the degree of occlusion of the first sub-pixel by the touch electrode line at wide viewing angles, thereby balancing the visible light intensity of the first and second sub-pixels and improving the color shift problem of the touch display panel at wide viewing angles.

[0037] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0038] Figure 2 is an enlarged structural schematic diagram of a touch display panel according to an embodiment of this application, and Figure 3 is a cross-sectional schematic diagram along the A-A' direction in Figure 2. Referring to Figures 2 and 3, the touch display panel includes a substrate 10, a plurality of sub-pixels 20, and a touch electrode layer 30. The plurality of sub-pixels 20 are located on one side of the substrate 10. The touch electrode layer 30 is located on the side of the sub-pixels 20 away from the substrate 10. The touch electrode layer 30 includes touch electrode lines 310. The orthographic projection of the sub-pixels 20 on the substrate 10 lies within the orthographic projection of the grid formed by the touch electrode lines 310 on the substrate 10. The plurality of sub-pixels 20 includes a first sub-pixel 210 and a second sub-pixel 220. The first sub-pixel 210 emits green light, and the second sub-pixel 220 emits a different emission color than the first sub-pixel 210. The second sub-pixel 220 emits blue light, red light, or other colors of light. The maximum distance between the orthographic projection of the first sub-pixel 210 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is the first sub-pixel distance G. The maximum distance between the orthographic projection of the second sub-pixel 220 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is the second sub-pixel distance B. The first sub-pixel distance G is less than the second sub-pixel distance B.

[0039] For example, in the embodiments shown in Figures 2 and 3, the touch display panel includes a plurality of sub-pixels 20 arranged in an array. Among the plurality of sub-pixels 20, a first sub-pixel 210 emits green light, and a second sub-pixel 220 emits a different color than the first sub-pixel 210, with the first sub-pixel 210 and the second sub-pixel 220 disposed adjacent to each other. Furthermore, the touch display panel also includes a substrate 10 and a pixel definition layer 240 located on one side of the substrate 10. The pixel definition layer 240 includes a plurality of pixel definition openings 2401, and the sub-pixels 20 are disposed within the pixel definition openings 2401, i.e., the pixel definition openings 2401 are the openings of the sub-pixels 20. A touch electrode layer 30 is also disposed on the side of the sub-pixels 20 away from the substrate 10. The touch electrode layer 30 includes touch electrode lines 310, each including a portion extending along a first direction X and a portion extending along a second direction Y. The first direction X and the second direction Y intersect. The touch electrode lines 310 are then formed into a grid shape, and touch information is transmitted through the grid of touch electrode lines 310 to realize the touch function of the touch display panel.

[0040] Furthermore, since the touch electrode line 310 is located on the side of the sub-pixel 20 away from the substrate 10, that is, the touch electrode line 310 is located in the light emission direction of the sub-pixel 20, and thus, along the thickness direction of the touch display panel, the touch electrode line 310 and the sub-pixel 20 are staggered, that is, the touch electrode line 310 is located between adjacent sub-pixels 20. In this way, by setting the orthographic projection of the sub-pixel 20 on the substrate 10 within the orthographic projection of the grid formed by the touch electrode lines 310 on the substrate 10, the influence of the touch electrode lines 310 on the amount of light emitted in the vertical direction of the sub-pixel 20 is avoided. When the orthographic projection of the sub-pixel 20 on the substrate 10 is located within the orthographic projection of the grid formed by the touch electrode lines 310 on the substrate 10, adjacent sub-pixels 20 correspond to the same touch electrode line 310, such as setting a touch electrode line 310 between adjacent first sub-pixels 210 and second sub-pixels 220.

[0041] Since the light-emitting area of ​​the first sub-pixel 210 emitting green light is smaller than that of the second sub-pixel 220 emitting other colors of light, when the touch electrode line 310 is located at the center of the first sub-pixel 210 and the second sub-pixel 220, the touch display panel will appear greenish at wide viewing angles. This allows the touch electrode line 310 located between the first sub-pixel 210 and the second sub-pixel 220 to move towards the first sub-pixel 210, thereby reducing the maximum distance (first sub-pixel distance G) between the orthographic projection of the first sub-pixel 210 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10. At the same time, it increases the maximum distance (second sub-pixel distance B) between the orthographic projection of the second sub-pixel 220 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10. This makes the first sub-pixel 210 closer to the touch electrode line 310 and the second sub-pixel 220 farther from the touch electrode line 310. This increases the degree of occlusion of the first sub-pixel 210 (green light) by the touch electrode line 310 at a wide viewing angle, while reducing the degree of occlusion of the second sub-pixel 220 by the touch electrode line 310. This balances the visible light intensity of the first sub-pixel 210 and the visible light intensity of the second sub-pixel 220, thereby alleviating or even eliminating the wide viewing angle color shift problem of the touch display panel.

[0042] As shown in Figures 2 and 3, the distance between the orthographic projection of sub-pixel 20 on substrate 10 and the orthographic projection of touch electrode line 310 on substrate 10 can be understood as the distance between pixel definition opening 2401 and touch electrode line 310, that is, the distance between the side of pixel definition opening 2401 closest to touch electrode line 310 and touch electrode line 310. Furthermore, those skilled in the art will understand that the horizontal and vertical dashed lines in Figure 2 do not represent actual meaning, but are used to indicate the position of sub-pixel 20.

[0043] Optionally, based on the above embodiments, referring to Figure 2, the difference between the second sub-pixel distance B and the first sub-pixel distance G is greater than or equal to 0.5 micrometers (μm) and less than or equal to 2 μm. The difference between the second sub-pixel distance B and the first sub-pixel distance G being greater than or equal to 0.5 μm means that, with the touch electrode line 310 located at the center of the first sub-pixel 210 and the second sub-pixel 220, the touch electrode line 310 is moved at least 0.25 μm towards the first sub-pixel 210. In other words, the maximum distance between the orthographic projection of the first sub-pixel 210 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is reduced by at least 0.25 μm, and the maximum distance between the orthographic projection of the second sub-pixel 220 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is increased by at least 0.25 μm. This avoids the difference between the second sub-pixel distance B and the first sub-pixel distance G being too small to improve the greenish color shift problem of the touch display panel at large viewing angles. Furthermore, the difference between the distance B of the second sub-pixel and the distance G of the first sub-pixel needs to be less than or equal to 2μm. That is, with the touch electrode line 310 located at the center of the first sub-pixel 210 and the second sub-pixel 220, the touch electrode line 310 is moved at most 1μm toward the first sub-pixel 210. In other words, the maximum distance between the orthographic projection of the first sub-pixel 210 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is reduced by at most 1μm, and the maximum distance between the orthographic projection of the second sub-pixel 220 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is increased by at most 1μm. This avoids the difference between the distance B of the second sub-pixel and the distance G of the first sub-pixel being too large, which would reduce the degree of occlusion of the second sub-pixel 220 by the touch electrode line 310 at a large viewing angle, causing the touch display panel to be biased towards other colors of light (such as blue or red light) at a large viewing angle.

[0044] Optionally, based on the above embodiment, referring to Figure 2, the second sub-pixel 220 emits blue light. The plurality of sub-pixels 20 also include touch electrode lines 310, and the third sub-pixel 230 emits red light. The maximum distance between the orthographic projection of the third sub-pixel 230 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is the third sub-pixel distance R, and the first sub-pixel distance G is less than the third sub-pixel distance R.

[0045] For example, in the embodiments shown in Figures 2 and 3, since the light-emitting area of ​​the third sub-pixel 230 emitting red light is larger than that of the first sub-pixel 210 emitting green light, when the touch electrode line 310 is located at the center of the first sub-pixel 210 and the third sub-pixel 230, the touch display panel will appear greenish at wide viewing angles. By moving the touch electrode line 310 located between the first sub-pixel 210 and the third sub-pixel 230 toward the first sub-pixel 210, the maximum distance between the orthographic projection of the first sub-pixel 210 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 (first sub-pixel distance G) is reduced, while the maximum distance between the orthographic projection of the third sub-pixel 230 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 (third sub-pixel distance R) is increased, making the first sub-pixel 230 appear greener. Pixel 210 is closer to the touch electrode line 310, while the third sub-pixel 230 is farther from the touch electrode line 310. This increases the degree of occlusion of the first sub-pixel 210 (green light) by the touch electrode line 310 at a wide viewing angle, while reducing the degree of occlusion of the third sub-pixel 230 by the touch electrode line 310. This balances the visible light intensity of the first sub-pixel 210 and the visible light intensity of the third sub-pixel 230 at a wide viewing angle, thereby alleviating or even eliminating the wide viewing angle color shift problem of the touch display panel.

[0046] Optionally, based on the above embodiments, referring to Figure 2, the difference between the distance R of the third sub-pixel and the distance G of the first sub-pixel is greater than or equal to 0.5 μm and less than or equal to 2 μm. For example, the difference between the distance R of the third sub-pixel and the distance G of the first sub-pixel is greater than or equal to 0.5 μm, meaning that with the touch electrode line 310 located at the center of the first sub-pixel 210 and the third sub-pixel 230, the touch electrode line 310 is moved at least 0.25 μm towards the first sub-pixel 210. In other words, the maximum distance between the orthographic projection of the first sub-pixel 210 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is reduced by at least 0.25 μm, and the maximum distance between the orthographic projection of the third sub-pixel 230 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is increased by at least 0.25 μm. This avoids the difference between the distance R of the third sub-pixel and the distance G of the first sub-pixel being too small to improve the greenish color shift problem of the touch display panel at large viewing angles. Furthermore, the difference between the distance R of the third sub-pixel and the distance G of the first sub-pixel needs to be less than or equal to 2μm. That is, with the touch electrode line 310 located at the center of the first sub-pixel 210 and the third sub-pixel 230, the touch electrode line 310 is moved at most 1μm toward the first sub-pixel 210. In other words, the maximum distance between the orthographic projection of the first sub-pixel 210 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is reduced by at most 1μm, and the maximum distance between the orthographic projection of the third sub-pixel 230 on the substrate 10 and the orthographic projection of the touch electrode line 310 on the substrate 10 is increased by at most 1μm. This avoids the difference between the distance R of the third sub-pixel and the distance G of the first sub-pixel being too large, which would reduce the degree of occlusion of the third sub-pixel 230 by the touch electrode line 310 at a large viewing angle, causing the touch display panel to appear reddish at a large viewing angle.

[0047] Optionally, in one embodiment, the first sub-pixel distance G can be set to be less than the second sub-pixel distance B, and the first sub-pixel distance G can also be set to be less than the third sub-pixel distance R. For example, Figure 4 is a schematic diagram of a color shift trajectory provided in an embodiment of this application. In the embodiment shown in Figure 4, the multiple color shift trajectories in the color shift coordinate system include a first trajectory a, a second trajectory b, a third trajectory c, and a fourth trajectory d. The first trajectory a represents the color shift observed by the touch display panel at different tilt angles when the difference between the second sub-pixel distance B and the first sub-pixel distance G is 0, and the difference between the third sub-pixel distance R and the first sub-pixel distance G is 0. The second trajectory b represents the color shift observed by the touch display panel at different tilt angles when the difference between the second sub-pixel distance B and the first sub-pixel distance G is 1 μm, and the difference between the third sub-pixel distance R and the first sub-pixel distance G is 1 μm. The third trajectory c represents the color shift observed on the touch display panel at different tilt angles when the difference between the distances B and G of the second and third sub-pixels is 1.4 μm, and the difference between the distances R and G of the third and third sub-pixels is also 1.4 μm. The fourth trajectory d represents the color shift observed on the touch display panel at different tilt angles when the difference between the distances B and G of the second and third sub-pixels is 2 μm, and the difference between R and G of the third sub-pixel is also 2 μm. The color shift trajectory includes multiple color shift trajectory points, and the multiple color shift trajectory points pointing from the origin to the endpoint represent the color shift when the tilt viewing angle is 0° from the touch display panel, the color shift when the tilt viewing angle is 15° from the touch display panel, the color shift when the tilt viewing angle is 30° from the touch display panel, the color shift when the tilt viewing angle is 45° from the touch display panel, the color shift when the tilt viewing angle is 60° from the touch display panel, and the color shift when the tilt viewing angle is 75° from the touch display panel. Furthermore, the color shift coordinate system also includes multiple concentric circles indicated by dashed lines. When a color shift trajectory point is located in the innermost concentric circle, it indicates a smaller color shift at that point; conversely, when a color shift trajectory point is located in the outermost concentric circle, it indicates a larger color shift at that point. The color shift coordinate system also includes a first quadrant (01), a second quadrant (02), a third quadrant (03), and a fourth quadrant (04). When a color shift trajectory point is located in the first quadrant (01) or the fourth quadrant (04), it indicates a reddish color shift; when it is located in the second quadrant (02), it indicates a greenish color shift; and when it is located in the third quadrant (03), it indicates a bluish color shift.

[0048] Referring to Figure 4 and in conjunction with Figure 2, the difference between the second sub-pixel distance B and the first sub-pixel distance G is equal to the difference between the third sub-pixel distance R and the first sub-pixel distance G. Optionally, the first trajectory a is the color shift trajectory when the touch electrode line 310 is located at the center of two adjacent sub-pixels 20 (i.e., the difference between the second sub-pixel distance B and the first sub-pixel distance G is 0, and the difference between the third sub-pixel distance R and the first sub-pixel distance G is 0). As can be seen from the first trajectory a, when the tilted viewing angle is 75° to the touch display panel, the color shift trajectory point is located in the outermost concentric circle and in the second quadrant 02. At this time, the touch display panel is greenish at a large viewing angle. Furthermore, by moving the touch electrode line 310 located between the first sub-pixel 210 and the second sub-pixel 220, and the touch electrode line 310 located between the first sub-pixel 210 and the third sub-pixel 230, both moving 0.5μm towards the first sub-pixel 210 (i.e., the second trajectory b), it can be seen from the second trajectory b that when the tilted viewing angle is 75° with the touch display panel, the color shift trajectory point is located within the concentric circle in the middle and in the second quadrant 02. In other words, the color shift of the touch display panel at a large viewing angle is improved. The fourth trajectory d is the color shift trajectory after the touch electrode line 310 located between the first sub-pixel 210 and the second sub-pixel 220, and the touch electrode line 310 located between the first sub-pixel 210 and the third sub-pixel 230, both moving 1μm towards the first sub-pixel 210. As can be seen from the fourth trajectory d, when the tilted viewing angle is 75° to the touch display panel, the color deviation trajectory point is located in the innermost concentric circle. This greatly improves the color deviation of the touch display panel at large viewing angles, resulting in a better optimization of the color deviation trajectory.

[0049] In another embodiment, Figure 5 is a schematic diagram of another color shift trajectory provided by an embodiment of this application. In the embodiment shown in Figure 5, the difference between the second sub-pixel distance B and the first sub-pixel distance G is greater than the difference between the third sub-pixel distance R and the first sub-pixel distance G. Optionally, the first trajectory a represents the color shift observed by the touch display panel at different tilt angles when the difference between the second sub-pixel distance B and the first sub-pixel distance G is 0, and the difference between the third sub-pixel distance R and the first sub-pixel distance G is 0. The second trajectory b represents the color shift observed by the touch display panel at different tilt angles when the difference between the second sub-pixel distance B and the first sub-pixel distance G is 1.4 μm, and the difference between the third sub-pixel distance R and the first sub-pixel distance G is 1 μm. The third trajectory c represents the color shift observed by the touch display panel at different tilt angles when the difference between the second sub-pixel distance B and the first sub-pixel distance G is 2 μm, and the difference between the third sub-pixel distance R and the first sub-pixel distance G is 1 μm. The fourth trajectory d represents the color shift observed on the touch display panel at different tilt angles when the difference between the second sub-pixel distance B and the first sub-pixel distance G is 2μm and the difference between the third sub-pixel distance R and the first sub-pixel distance G is 1.4μm.

[0050] Referring to Figure 5 and combining it with Figure 2, it can be seen from the first trajectory a that when the tilted viewing angle is 75° to the touch display panel, the color shift trajectory point is located in the outermost concentric circle and in the second quadrant 02. At this time, the touch display panel is greenish under large viewing angles. Furthermore, by moving the touch electrode line 310 located between the first sub-pixel 210 and the second sub-pixel 220 towards the first sub-pixel 210 by 0.7μm, and the touch electrode line 310 located between the first sub-pixel 210 and the third sub-pixel 230 towards the first sub-pixel 210 by 0.5μm (i.e., the second trajectory b), it can be seen from the second trajectory b that when the tilted viewing angle is 75° to the touch display panel, the color shift trajectory point is located in the inner concentric circle and in the second quadrant 02. In other words, the color shift of the touch display panel under large viewing angles is improved at this time. The third trajectory c represents the color shift trajectory after the touch electrode line 310 located between the first sub-pixel 210 and the second sub-pixel 220 moves 1 μm toward the first sub-pixel 210, and the touch electrode line 310 located between the first sub-pixel 210 and the third sub-pixel 230 moves 0.5 μm toward the first sub-pixel 210. As can be seen from the third trajectory c, when the viewing angle is 75° to the touch display panel, the color shift trajectory point is located within the innermost concentric circle. This means that the color shift of the touch display panel at large viewing angles has been greatly improved, resulting in a better optimization of the color shift trajectory.

[0051] Optionally, Figure 6 is an enlarged schematic diagram of a second sub-pixel provided in an embodiment of this application. Referring to Figures 2 and 6, the first sub-pixel 210 and the second sub-pixel 220 are arranged alternately along the first direction X or the second direction Y, and the first direction X and the second direction Y intersect. The distance B of the second sub-pixel along the first direction X includes a first distance B1 and a second distance B2, and the distance B of the second sub-pixel along the second direction Y includes a third distance B3 and a fourth distance B4. The first distance B1, the second distance B2, the third distance B3, and the fourth distance B4 are equal.

[0052] Optionally, in the embodiments shown in Figures 2 and 6, the first sub-pixel 210 and the second sub-pixel 220 are arranged alternately along the first direction X and the second direction Y. Then, each second sub-pixel 220 is surrounded by four first sub-pixels 210: two first sub-pixels 210 located on either side of the second sub-pixel 220 along the first direction X, and two first sub-pixels 210 located on either side of the second sub-pixel 220 along the second direction Y. Thus, the first distance B1 and the second distance B2 are equal, meaning that the touch electrode lines 310 located on either side of the second sub-pixel 220 along the first direction X move the same distance when moving towards the corresponding first sub-pixel 210. Similarly, the third distance B3 and the fourth distance B4 are equal, meaning that the touch electrode lines 310 located on either side of the second sub-pixel 220 along the second direction X move the same distance when moving towards the corresponding first sub-pixel 210. Therefore, if the first distance B1, the second distance B2, the third distance B3, and the fourth distance B4 are equal, it means that, with the length and width of the second sub-pixel 220 remaining unchanged, the outward expansion of the touch electrode lines 310 located on both sides of the second sub-pixel 220 along the first direction X is equal to the outward expansion of the touch electrode lines 310 located on both sides of the second sub-pixel 220 along the second direction Y. Thus, the reduction in the degree of occlusion of the second sub-pixel 220 by the touch electrode lines 310 in the first direction X under a large viewing angle is the same as the reduction in the degree of occlusion of the second sub-pixel 220 by the touch electrode lines 310 in the second direction Y.

[0053] Optionally, in another embodiment, FIG7 is an enlarged schematic diagram of a third sub-pixel provided in an embodiment of this application. Referring to FIG2 and FIG7, the first sub-pixel 210 and the third sub-pixel 230 are arranged alternately along the first direction X or the second direction Y, and the first direction X and the second direction Y intersect. The distance R of the third sub-pixel along the first direction X includes a fifth distance R1 and a sixth distance R2, and the distance R of the third sub-pixel along the second direction Y includes a seventh distance R3 and an eighth distance R4. The fifth distance R1, the sixth distance R2, the seventh distance R3, and the eighth distance R4 are equal.

[0054] Optionally, in the embodiments shown in Figures 2 and 7, the same third sub-pixel 230 is surrounded by four first sub-pixels 210, namely two first sub-pixels 210 located on both sides of the third sub-pixel 230 along the first direction X, and two first sub-pixels 210 located on both sides of the third sub-pixel 230 along the second direction Y. Thus, the fifth distance R1, the sixth distance R2, the seventh distance R3, and the eighth distance R4 are equal, meaning that, with the length and width of the third sub-pixel 230 itself remaining unchanged, the outward expansion of the touch electrode lines 310 located on both sides of the third sub-pixel 230 along the first direction X is equal to the outward expansion of the touch electrode lines 310 located on both sides of the third sub-pixel 230 along the second direction Y. Therefore, the degree of reduction in the degree of occlusion of the third sub-pixel 230 by the touch electrode lines 310 in the first direction X under a large viewing angle is the same as the degree of reduction in the degree of occlusion of the third sub-pixel 230 by the touch electrode lines 310 in the second direction Y.

[0055] Optionally, the above embodiments are all described using the example of a straight line shape for the touch electrode line 310. In this case, the distances G, B, and R of the first sub-pixel are changed by moving the touch electrode line 310. In other embodiments, the shape of the touch electrode line 310 can also be curved or zigzag.

[0056] For example, Figure 8 is an enlarged structural schematic diagram of another touch display panel provided in an embodiment of this application. Referring to Figure 8, the grid includes multiple electrode segments 3101, at least one of which is arc-shaped. In the embodiment shown in Figure 8, all of the multiple electrode segments 3101 are arc-shaped, and the first sub-pixel distance G, the second sub-pixel distance B, and the third sub-pixel distance R are changed by changing the arc orientation of the electrode segments 3101.

[0057] Optionally, when the touch electrode line 310 is located between two adjacent sub-pixels 20 and its shape is straight, since the light-emitting areas of the second sub-pixel 220 and the third sub-pixel 230 are both larger than the light-emitting area of ​​the first sub-pixel 210, the touch electrode line 310 will block the second sub-pixel 220 and the third sub-pixel 230 to a greater extent than it blocks the first sub-pixel 210 at a wide viewing angle. This results in the touch display panel appearing greenish at a wide viewing angle (the first sub-pixel 210 emits green light). Therefore, based on the premise that the touch electrode line 310 is located between two adjacent sub-pixels 20, its shape can be changed to an arc shape. For example, the arc of the electrode segment 3101 between the first sub-pixel 210 and the second sub-pixel 220 is made to bulge towards the first sub-pixel 210 to reduce the distance G between the first sub-pixel and increase the distance B between the second sub-pixel. Similarly, the arc of the electrode segment 3101 between the first sub-pixel 210 and the third sub-pixel 230 is made to bulge towards the first sub-pixel 210 to reduce the distance G between the first sub-pixel and increase the distance R between the third sub-pixel. In this way, the degree of occlusion of the touch electrode line 310 on the first sub-pixel 210 is increased at a large viewing angle, and the degree of occlusion of the touch electrode line 310 on the second sub-pixel 220 and the third sub-pixel 230 is reduced, thereby improving the color shift problem of the touch display panel at a large viewing angle.

[0058] In another embodiment, FIG9 is an enlarged structural schematic diagram of another touch display panel provided in this application embodiment. Referring to FIG9, at least one electrode segment 3101 can be shaped as a polygonal line. This embodiment has the same effect as the above embodiments.

[0059] Optionally, in another embodiment, FIG10 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application. Referring to FIG10, the second sub-pixel 220 includes a first straight edge L1, a second straight edge L2, a third straight edge L3, and a fourth straight edge L4. The second sub-pixel 220 includes a first chamfer M1, which connects the first straight edge L1 and the second straight edge L2.

[0060] For example, in the embodiments shown in Figures 2 and 10, the degree of occlusion of the touch electrode line 310 on the sub-pixel 20 at a wide viewing angle can be changed by altering the light-emitting area of ​​the sub-pixel 20. The light-emitting area of ​​the sub-pixel 20 can be understood as the opening area of ​​the sub-pixel 20, i.e., the area of ​​the pixel definition opening 2401. For example, based on setting the first sub-pixel distance G to be less than the second sub-pixel distance B, the second sub-pixel 220 can also be configured to include a first chamfer M1. That is, based on the original rectangle of the second sub-pixel 220, a diagonal of the second sub-pixel 220 is cut off to form the first chamfer M1. This is equivalent to reducing the light-emitting area of ​​the second sub-pixel 220. With a smaller light-emitting area, the degree of occlusion of the second sub-pixel 220 by the touch electrode line 310 at a wide viewing angle is reduced. By reducing the difference in the visible light intensity of the first sub-pixel 210 and the visible light intensity of the second sub-pixel 220, the wide viewing angle color shift problem of the touch display panel can be alleviated or even eliminated.

[0061] Optionally, based on the above embodiment, referring to Figure 10, the length of the first chamfer M1 along the extension direction of the first straight edge L1 is b1, the second straight edge L2 is parallel to the fourth straight edge L4, the vertical distance between the second straight edge L2 and the fourth straight edge L4 is b2, and 0.2≤b1 / b2<0.5.

[0062] For example, in the embodiment shown in FIG10, the light-emitting area of ​​the second sub-pixel 220 is reduced by setting a first chamfer M1. The ratio (b1 / b2) of the side length b1 of the first chamfer M1 extending along the first straight edge L1 to the vertical distance b2 between the second straight edge L2 and the fourth straight edge L4 can be understood as the proportion of the length of the cut portion of the first straight edge L1 after the first chamfer M1 is removed from the original rectangular second sub-pixel 220 to the length of the first straight edge before removal. Furthermore, by setting b1 / b2 ≥ 0.2, the first straight edge L1 before removal is reduced by at least one-fifth of its original length after the first chamfer M1 is removed. This means the second sub-pixel 220 can have a sufficiently reduced light-emitting area, thereby avoiding an excessively small ratio of the side length b1 of the first chamfer M1 extending along the first straight edge L1 to the vertical distance b2 between the second straight edge L2 and the fourth straight edge L4, which would be insufficient to improve the greenish color shift problem of the touch display panel at large viewing angles. In addition, a setting of b1 / b2≤0.5 is also set so that after the first chamfer M1 is cut off, the first straight edge L1 before trimming will at most lose half of its own length. That is, the reduced light-emitting area of ​​the second sub-pixel 220 will not exceed the set value. This avoids the ratio of the side length b1 of the first chamfer M1 along the extension direction of the first straight edge L1 to the vertical distance b2 between the second straight edge L2 and the fourth straight edge L4 being too large, which would reduce the degree of occlusion of the second sub-pixel 220 by the touch electrode line 310 at a large viewing angle too much, resulting in the touch display panel appearing bluish at a large viewing angle.

[0063] Optionally, Figure 11 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application. See Figures 2 and 11. The second sub-pixel 220 further includes a second chamfer M2, a third chamfer M3, and a fourth chamfer M4. The second chamfer M2 connects the second straight edge L2 and the third straight edge L3, the third chamfer M3 connects the third straight edge L3 and the fourth straight edge L4, and the fourth chamfer M4 connects the fourth straight edge L4 and the first straight edge L1.

[0064] For example, in the embodiments shown in Figures 2 and 11, the second sub-pixel 220 includes four chamfers. That is, based on the original rectangle of the second sub-pixel 220, the four opposite corners of the second sub-pixel 220 are cut off, thereby forming a first chamfer M1, a second chamfer M2, a third chamfer M3, and a fourth chamfer M4. In this way, by setting four chamfers, on the one hand, while ensuring that the area of ​​the chamfers does not exceed a set value, the light-emitting area of ​​the second sub-pixel 220 can be reduced. By reducing the difference in the visible light intensity of the first sub-pixel 210 and the visible light intensity of the second sub-pixel 220, the large viewing angle color shift problem of the touch display panel can be alleviated or even eliminated. On the other hand, by setting the first chamfer M1, the second chamfer M2, the third chamfer M3, and the fourth chamfer M4, the first straight edge L1, the second straight edge L2, the third straight edge L3, and the fourth straight edge L4 of the second sub-pixel 220 are all reduced. In other words, based on the original rectangular second sub-pixel 220, the difference in the degree of reduction of the first straight edge L1, the second straight edge L2, the third straight edge L3, and the fourth straight edge L4 is reduced. As a result, in the four directions (the four directions viewed from the center of a sub-pixel), the degree of occlusion of the second sub-pixel 220 by the touch electrode line 310 is similar, thus improving the display effect of the touch display panel in the wide viewing angle.

[0065] Optionally, Figure 12 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application. Referring to Figure 12, the side length of the first chamfer M1 along the extension direction of the second straight line L2 is b3, where b1 is not equal to b3. The first chamfer M1, the second chamfer M2, the third chamfer M3, and the fourth chamfer M4 are rotationally symmetrical.

[0066] For example, in the embodiment shown in FIG12, since the first chamfer M1, the second chamfer M2, the third chamfer M3, and the fourth chamfer M4 are rotationally symmetrical, that is, the first chamfer M1, the second chamfer M2, the third chamfer M3, and the fourth chamfer M4 have the same shape and size but different positions. Therefore, for the first straight edge L1, this is equivalent to cutting off the length b1 of the first chamfer M1 along the extension direction of the first straight edge L1, and cutting off the length b3 of the first chamfer M1 along the extension direction of the second straight edge L2. Similarly, for the second straight edge L2, this is equivalent to cutting off the length b1 of the first chamfer M1 along the extension direction of the first straight edge L1, and cutting off the length b3 of the first chamfer M1 along the extension direction of the second straight edge L2. For the third straight edge L3, this is equivalent to cutting off the length b1 of the first chamfer M1 along the extension direction of the first straight edge L1, and cutting off the length b3 of the first chamfer M1 along the extension direction of the second straight edge L2. For the fourth straight edge L4, this is equivalent to cutting off the length b1 of the first chamfer M1 along the extension direction of the first straight edge L1, and cutting off the length b3 of the first chamfer M1 along the extension direction of the second straight edge L2, based on the original rectangular second sub-pixel 220. In other words, based on the original rectangular second sub-pixel 220, the lengths of the first straight edge L1, the second straight edge L2, the third straight edge L3, and the fourth straight edge L4 are reduced by the same amount. Therefore, in four directions (four directions viewed from the center of a sub-pixel), the degree of occlusion of the touch electrode line 310 on the second sub-pixel 220 is reduced by the same amount, ensuring that the degree of color shift improvement of the touch display panel is the same in four directions.

[0067] Optionally, based on the above embodiments, FIG13 is an enlarged schematic diagram of another second sub-pixel provided in the embodiments of this application. Referring to FIG13, the side length of the first chamfer M1 along the extension direction of the second straight edge L2 is b3, and b1 is equal to b3.

[0068] For example, in the embodiment shown in FIG13, the side length b3 of the first chamfer M1 extending along the direction of the second straight edge L2 is equal to the side length b1 of the first chamfer M1 extending along the direction of the first straight edge L1, that is, the first chamfer M1 is a 45° chamfer. In this way, the first straight edge L1 and the second straight edge L2 can be reduced by the same length from their original values. Furthermore, the second sub-pixel 220 can also be configured to include a second chamfer M2, a third chamfer M3, and a fourth chamfer M4. The shapes and sizes of the second chamfer M2, the third chamfer M3, and the fourth chamfer M4 are all the same as the shape and size of the first chamfer M1. Thus, based on the original rectangular second sub-pixel 220, the lengths of the first straight edge L1, the second straight edge L2, the third straight edge L3, and the fourth straight edge L4 are reduced by the same amount. Consequently, in the four directions (four directions viewed from the center of a sub-pixel), the degree of occlusion of the touch electrode line 310 on the second sub-pixel 220 is reduced by the same amount, ensuring that the degree of color shift improvement of the touch display panel is the same in the four directions.

[0069] Optionally, based on the above embodiments, FIG14 is an enlarged schematic diagram of another third sub-pixel provided in this application embodiment. Referring to FIG2 and FIG14, the second sub-pixel 220 emits blue light. The plurality of sub-pixels 20 also includes a third sub-pixel 230, which emits red light. The third sub-pixel 230 includes a fifth straight edge L5, a sixth straight edge L6, a seventh straight edge L7, and an eighth straight edge L8. The third sub-pixel 230 includes a fifth chamfer M5, which connects the fifth straight edge L5 and the sixth straight edge L6.

[0070] For example, in the embodiments shown in Figures 2 and 14, in addition to setting the distance G of the first sub-pixel to be less than the distance R of the third sub-pixel, the third sub-pixel 230 can also be set to include a fifth chamfer M5. That is, on the basis of the original rectangle of the third sub-pixel 230, one diagonal of the third sub-pixel 230 is cut off to form the fifth chamfer M5. In this way, the light-emitting area of ​​the third sub-pixel 230 is reduced. With the light-emitting area of ​​the third sub-pixel 230 reduced, the degree of occlusion of the touch electrode line 310 on the third sub-pixel 230 at a large viewing angle is reduced. By reducing the difference between the light-emitting intensity of the first sub-pixel 210 and the light-emitting intensity of the third sub-pixel 230 visible to the human eye, the problem of large viewing angle color deviation of the touch display panel can be alleviated or even eliminated.

[0071] Optionally, based on the above embodiments, refer to Figures 2, 10, and 14. The length of the first chamfer M1 along the extension direction of the first straight edge L1 is b1. The second straight edge L2 is parallel to the fourth straight edge L4, and the perpendicular distance between the second straight edge L2 and the fourth straight edge L4 is b2. The length of the fifth chamfer M5 along the extension direction of the fifth straight edge L5 is r1. The sixth straight edge L6 is parallel to the eighth straight edge L8, and the perpendicular distance between the sixth straight edge L6 and the eighth straight edge L8 is r2, where r1 / r2 < b1 / b2.

[0072] Optionally, the ratio (r1 / r2) of the side length r1 of the fifth chamfer M5 along the direction of the fifth straight edge L5 to the vertical distance r2 between the sixth straight edge L6 and the eighth straight edge L8 can be understood as the proportion of the length of the cut part of the fifth straight edge L5 to the length of the fifth straight edge before cutting, after the fifth chamfer M5 is cut off from the third sub-pixel 230 of the original rectangle. Furthermore, when the touch electrode line 310 obstructs the second sub-pixel 220 to a greater extent than it obstructs the third sub-pixel 230 at a wide viewing angle, the proportion of the length of the fifth straight edge L5 in the third sub-pixel 230 after removing the fifth chamfer M5 to the length of the fifth straight edge before removal is set to be less than the proportion of the length of the first straight edge L1 in the second sub-pixel 220 after removing the first chamfer M1 to the length of the first straight edge before removal. In other words, the area removed by the first chamfer M1 in the second sub-pixel 220 is made larger, thereby reducing the obstruction of the second sub-pixel 220 by the touch electrode line 310 at a wide viewing angle and improving the color shift problem of the touch display panel at a wide viewing angle.

[0073] Optionally, Figure 15 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application, and Figure 16 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application. Referring to Figures 12, 15, and 16, the plurality of second sub-pixels 220 include a first type of sub-pixels 221 and a second type of sub-pixels 222. The first type of sub-pixels 221 includes a first chamfer M1 and a third chamfer M3, and the second type of sub-pixels 222 includes a second chamfer M2 and a fourth chamfer M4. Alternatively, the first type of sub-pixels 221 includes a first chamfer M1 and a second chamfer M2, and the second type of sub-pixels 222 includes a third chamfer M3 and a fourth chamfer M4. Wherein, the second chamfer M2 connects the second straight edge L2 and the third straight edge L3, the third chamfer M3 connects the third straight edge L3 and the fourth straight edge L4, and the fourth chamfer M4 connects the fourth straight edge L4 and the first straight edge L1. Along the first direction X or the second direction Y, the first type of sub-pixels 221 and the second type of sub-pixels 222 are arranged alternately, and the first direction X and the second direction Y intersect.

[0074] For example, in the embodiments shown in Figures 12 and 15, the first type of sub-pixel 221 includes a first chamfer M1 and a third chamfer M3 disposed opposite to each other, and the second type of sub-pixel 222 includes a second chamfer M2 and a fourth chamfer M4 disposed opposite to each other. Along the first direction X or along the second direction Y, a second type of sub-pixel 222 is included between two adjacent first type of sub-pixels 221. The first type of sub-pixels 221 and the second type of sub-pixels 222 arranged along the first direction X are thus considered as a basic first unit. Since the first type of sub-pixels 221 and the second type of sub-pixels 222 are spaced apart in this basic first unit, that is, the reduced light-emitting area of ​​the first type of sub-pixel 221 by the first chamfer M1 and the third chamfer M3 in the first direction X is complementary to the reduced light-emitting area of ​​the second type of sub-pixel 222 by the second chamfer M2 and the fourth chamfer M4, the touch electrode line 310 reduces the degree of occlusion of this basic first unit in two different orientations of the first direction X by the same amount. Similarly, the first type of sub-pixels 221 and the second type of sub-pixels 222 arranged along the second direction Y can be considered as a basic second unit. Since the first type of sub-pixels 221 and the second type of sub-pixels 222 are spaced apart in this basic second unit, meaning the light-emitting area reduced by the first chamfer M1 and the third chamfer M3 of the first type of sub-pixels 221 is complementary to the light-emitting area reduced by the second chamfer M2 and the fourth chamfer M4 of the second type of sub-pixels 222, the touch electrode line 310 reduces the occlusion degree of this basic second unit in two different directions along the second direction Y to the same extent. Due to the uniformity of the arrangement of the first type of sub-pixels 221 and the second type of sub-pixels 222 in the first direction X and the second direction Y, meaning their arrangement is the same in both directions, the touch electrode line 310 reduces the occlusion degree of the second sub-pixel 220 to the same extent in all four directions (four directions viewed from the perspective of multiple sub-pixels).

[0075] As exemplarily shown in Figures 12 and 16, the first type of sub-pixels 221 includes a first chamfer M1 and a second chamfer M2 arranged adjacently, and the second type of sub-pixels 222 includes a third chamfer M3 and a fourth chamfer M4 arranged adjacently. This embodiment has the same effects as the embodiments described above.

[0076] The above embodiments are all illustrated using straight chamfers as an example, but the chamfer shape in this application can be set according to actual conditions. For example, Figure 17 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application. In the embodiment shown in Figure 17, the first chamfer M1 can also be an arc-shaped chamfer. Then the first chamfer M1 includes an arc-shaped edge M11, which connects the first straight edge L1 and the second straight edge L2. In other embodiments, Figure 18 is an enlarged schematic diagram of another second sub-pixel provided in an embodiment of this application. In the embodiment shown in Figure 18, the first chamfer M1 can also be a broken-line chamfer. Then the first chamfer M1 includes a broken-line edge M12, which connects the first straight edge L1 and the second straight edge L2.

[0077] Optionally, Figure 19 is an enlarged schematic diagram of a first sub-pixel provided in an embodiment of this application. Referring to Figure 19, the first sub-pixel 210 includes a ninth straight edge L9, a tenth straight edge L10, an eleventh straight edge L11, and a twelfth straight edge L12 arranged sequentially. The first sub-pixel 210 includes a sixth chamfer M6, which connects the ninth straight edge L9 and the tenth straight edge L10. The length of the sixth chamfer M6 along the extension direction of the ninth straight edge L9 is g1. The tenth straight edge L10 and the twelfth straight edge L12 are parallel, and the vertical distance between the tenth straight edge L10 and the twelfth straight edge L12 is g2, where 0 < g1 / g2 ≤ 0.2.

[0078] Optionally, the ratio of the side length g1 of the sixth chamfer M6 extending along the ninth straight edge L9 to the vertical distance g2 between the tenth straight edge L10 and the twelfth straight edge L12 can be understood as the ratio of the length of the cut portion of the ninth straight edge L9 to the length of the ninth straight edge L9 before cutting, after the sixth chamfer M6 is removed from the original rectangular first sub-pixel 210. The first sub-pixel in related technologies also has a chamfer, but in these technologies, after a chamfer is removed, the length of the cut portion of the corresponding straight edge is proportionally larger to the length of the corresponding straight edge before cutting, for example, greater than 0.2. This results in a smaller light-emitting area of ​​the cut first sub-pixel (smaller than the second and third sub-pixels), leading to less occlusion of the first sub-pixel by the touch electrode lines at a wide viewing angle. Furthermore, in this embodiment, the length of the ninth straight edge L9 after the sixth chamfer M6 is removed is less than or equal to 0.2 of the length of the ninth straight edge L9 before cutting. That is, the cutting degree of the first sub-pixel is smaller than that in the related technology, thereby increasing the light-emitting area of ​​the first sub-pixel 210, increasing the degree of occlusion of the first sub-pixel 210 by the touch electrode line 310 at a large viewing angle, and improving the color shift problem of the touch display panel at a large viewing angle.

[0079] It should be noted that the above embodiments are all illustrated using the example of the chamfer being located at the corner of a sub-pixel. The corner position in this application can be set according to actual needs. In other embodiments, Figure 20 is an enlarged schematic diagram of another touch display panel provided by an embodiment of this application. In the embodiment shown in Figure 20, the first chamfer M1 can also be located in the middle of the first straight edge L1.

[0080] Optionally, Figure 21 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application. Referring to Figures 3 and 21, the orthographic projection of the second sub-pixel 220 on the substrate 10 is circular or elliptical.

[0081] Optionally, the orthographic projection of the second sub-pixel 220 onto the substrate 10 is circular or elliptical. That is, the second sub-pixel 220 is cropped from its original rectangular shape (as shown by the dotted line in Figure 21) to obtain a circular or elliptical shape. This reduces the light-emitting area of ​​the second sub-pixel 220, thereby reducing the difference in visible light intensity between the first sub-pixel 210 and the second sub-pixel 220, thus alleviating or even eliminating the color shift problem of the touch display panel at large viewing angles. Furthermore, at large viewing angles in four directions (four directions viewed from the center of a sub-pixel), the degree of occlusion reduction of the touch electrode line 310 on the second sub-pixel 220 is the same, ensuring that the degree of color shift improvement of the touch display panel is the same at large viewing angles in all four directions.

[0082] Optionally, Figure 22 is an enlarged schematic diagram of another touch display panel provided in an embodiment of this application. Referring to Figure 22, the second sub-pixel 220 emits blue light. The plurality of sub-pixels 20 also includes a third sub-pixel 230, which emits red light. The orthographic projection of the third sub-pixel 230 on the substrate 10 is circular or elliptical.

[0083] For example, in the embodiment shown in FIG22, the third sub-pixel 230 is further cropped from its original rectangular shape to obtain a circular or elliptical third sub-pixel 230. This not only reduces the light-emitting area of ​​the third sub-pixel 230, thus reducing the difference in visible light intensity between the first sub-pixel 210 and the third sub-pixel 230, but also alleviates or even eliminates the color shift problem of the touch display panel at large viewing angles. Furthermore, at large viewing angles in four directions (four directions viewed from the center of a sub-pixel), the degree of reduction in occlusion of the third sub-pixel 230 by the touch electrode line 310 is the same, ensuring that the degree of color shift improvement of the touch display panel is the same at large viewing angles in all four directions.

[0084] Optionally, based on the above embodiment and referring to Figure 2, the aperture area of ​​the second sub-pixel 220 is larger than the aperture area of ​​the third sub-pixel 230. Considering the need to balance the lifespan of the light-emitting materials in different sub-pixels 20, the aperture area of ​​the second sub-pixel 220 is set to be larger than the aperture area of ​​the third sub-pixel 230, meaning the light-emitting area of ​​the second sub-pixel 220 is larger than the light-emitting area of ​​the third sub-pixel 230.

[0085] Optionally, based on the above embodiments, referring to Figure 2, the first sub-pixel 210 and the second sub-pixel 220 are arranged alternately along the first direction X or the second direction Y. The first sub-pixel 210 and the third sub-pixel 230 are arranged alternately along the first direction X or the second direction Y. The first direction X and the second direction Y intersect. Thus, along the first direction X, adjacent first sub-pixels 210 are spaced apart by one second sub-pixel 220, or adjacent first sub-pixels 210 are spaced apart by one third sub-pixel 230. Along the second direction Y, adjacent first sub-pixels 210 are spaced apart by one second sub-pixel 220, or adjacent first sub-pixels 210 are spaced apart by one third sub-pixel 230, thereby ensuring a simple movement mode for the touch electrode line 210.

[0086] This embodiment of the application, by setting the distance between the first sub-pixel to be smaller than the distance between the second sub-pixel, compared to the related technology where the touch electrode line is located between the first and second sub-pixels, effectively increases the maximum distance between the orthographic projection of the second sub-pixel on the substrate and the orthographic projection of the touch electrode line on the substrate. Since sub-pixels farther away from the touch electrode line are less affected by the degree of occlusion by the touch electrode line, the degree of occlusion of the second sub-pixel by the touch electrode line is reduced. Furthermore, when the first and second sub-pixels correspond to the same touch electrode line, the distance between the first and second sub-pixels is usually changed by moving the touch electrode line. Therefore, the distance between the first and second sub-pixels being smaller than the distance between the second sub-pixels also means that the maximum distance between the orthographic projection of the first sub-pixel on the substrate and the orthographic projection of the touch electrode line on the substrate is reduced, i.e., the degree of occlusion of the first sub-pixel by the touch electrode line is increased. This reduces the visible difference in luminous intensity between the second and first sub-pixels at a wide viewing angle, improving the color shift problem of the touch display panel.

[0087] This application also provides a display device. Figure 23 is a schematic diagram of the structure of a display device provided in this application embodiment. As shown in Figure 23, the display device includes any of the touch display panels 100 described in the above embodiments. Therefore, the display device provided in this application embodiment has the corresponding effects of the touch display panel 100 provided in this application embodiment. For example, the display device can be an electronic device such as a mobile phone, computer, smart wearable device (e.g., smartwatch), and in-vehicle display device. In some embodiments, the display device further includes a power module 200, which is configured to supply power to the display device. The positional relationship between the touch display panel 100 and the power module 200 in Figure 23 is only schematic and is used to illustrate that the display device includes a display panel 100 and a power module 200. The positional relationship between the display panel 100 and the power module 200 in the display device can be set according to actual needs.

Claims

1. A touch display panel, comprising: a substrate; a plurality of sub-pixels on one side of the substrate; a touch electrode layer on a side of the sub-pixels away from the substrate, comprising touch electrode lines; a projection of the sub-pixels on the substrate is within a projection of a grid formed by the touch electrode lines on the substrate; the plurality of sub-pixels comprise first sub-pixels and second sub-pixels, the first sub-pixels emit green light, and the second sub-pixels have a different light-emitting color from the first sub-pixels; a maximum distance between a projection of the first sub-pixels on the substrate and a projection of the touch electrode lines on the substrate is a first sub-pixel distance, and a maximum distance between a projection of the second sub-pixels on the substrate and a projection of the touch electrode lines on the substrate is a second sub-pixel distance, the first sub-pixel distance being smaller than the second sub-pixel distance. The difference between the second sub-pixel distance and the first sub-pixel distance is greater than or equal to 0.5 μm and less than or equal to 2 μm. The second sub-pixels emit blue light; the plurality of sub-pixels further comprise third sub-pixels, the third sub-pixels emit red light; A maximum distance between a projection of the third sub-pixels on the substrate and a projection of the touch electrode lines on the substrate is a third sub-pixel distance, the first sub-pixel distance being smaller than the third sub-pixel distance. The difference between the third sub-pixel distance and the first sub-pixel distance is greater than or equal to 0.5 μm and less than or equal to 2 μm. The difference between the second sub-pixel distance and the first sub-pixel distance is greater than or equal to the difference between the third sub-pixel distance and the first sub-pixel distance. The first sub-pixels and the second sub-pixels are arranged alternately along a first direction or a second direction, the first direction intersecting the second direction; 2.The touch display panel of claim 1, wherein, The second sub-pixel distance along the first direction comprises a first distance and a second distance, and the second sub-pixel distance along the second direction comprises a third distance and a fourth distance, the first distance, the second distance, the third distance, and the fourth distance being equal. 3.The touch display panel of claim 1, wherein, The grid comprises a plurality of electrode segments, at least one of the electrode segments being arc-shaped. The second sub-pixel comprises a first straight edge, a second straight edge, a third straight edge, and a fourth straight edge; 4.The touch display panel of claim 3, wherein, The second sub-pixel comprises a first chamfer connecting the first straight edge and the second straight edge. 5.The touch display panel of claim 3, wherein, A length of the first chamfer along an extension direction of the first straight edge is b1, the second straight edge is parallel to the fourth straight edge, a perpendicular distance between the second straight edge and the fourth straight edge is b2, and 0.2 ≤ b1 / b2 < 0.

5. 6.The touch display panel of claim 1, wherein, The second sub-pixel further comprises a second chamfer, a third chamfer, and a fourth chamfer; The second chamfer connects the second straight edge and the third straight edge, the third chamfer connects the third straight edge and the fourth straight edge, and the fourth chamfer connects the fourth straight edge and the first straight edge. 7.The touch display panel of claim 1, wherein, A length of the first chamfer along an extension direction of the second straight edge is b3, and b1 is not equal to b3. 8.The touch display panel of claim 1, wherein, ​ ​ 9.The touch display panel of claim 8, wherein, ​ 10.The touch display panel of claim 8, wherein, ​ ​ 11.The touch display panel of claim 10, wherein, ​ The first chamfer, the second chamfer, the third chamfer and the fourth chamfer are rotationally symmetrical. 12.The touch display panel of claim 8, wherein, The first chamfer has a side length b3 along the extending direction of the second straight side, and b1 is equal to b3. 13.The touch display panel of claim 8, wherein, The second sub-pixel emits blue light; the plurality of sub-pixels further include a third sub-pixel, and the third sub-pixel emits red light. The third sub-pixel includes a fifth straight side, a sixth straight side, a seventh straight side and an eighth straight side. The third sub-pixel includes a fifth chamfer, and the fifth chamfer connects the fifth straight side and the sixth straight side. 14.The touch display panel of claim 13, wherein, The first chamfer has a side length b1 along the extending direction of the first straight side, the second straight side is parallel to the fourth straight side, and the perpendicular distance between the second straight side and the fourth straight side is b2. The fifth chamfer has a side length r1 along the extending direction of the fifth straight side, the sixth straight side is parallel to the eighth straight side, and the perpendicular distance between the sixth straight side and the eighth straight side is r2, and r1 / r2 < b1 / b2. 15.The touch display panel of claim 8, wherein, The plurality of second sub-pixels include first-type sub-pixels and second-type sub-pixels. The first-type sub-pixel includes the first chamfer and the third chamfer, the second-type sub-pixel includes the second chamfer and the fourth chamfer; or the first-type sub-pixel includes the first chamfer and the second chamfer, The second-type sub-pixel includes the third chamfer and the fourth chamfer. The second chamfer connects the second straight side and the third straight side, the third chamfer connects the third straight side and the fourth straight side, and the fourth chamfer connects the fourth straight side and the first straight side. In the first direction or the second direction, the first-type sub-pixels and the second-type sub-pixels are arranged alternately, and the first direction intersects the second direction. 16.The touch display panel of claim 8, wherein, The first chamfer includes an arc-shaped side, and the arc-shaped side connects the first straight side and the second straight side. 17.The touch display panel of claim 1, wherein, The first sub-pixel includes a ninth straight side, a tenth straight side, an eleventh straight side and a twelfth straight side arranged in sequence. The first sub-pixel includes a sixth chamfer, and the sixth chamfer connects the ninth straight side and the tenth straight side. The sixth chamfer has a side length g1 along the extending direction of the ninth straight side, the tenth straight side is parallel to the twelfth straight side, and the perpendicular distance between the tenth straight side and the twelfth straight side is g2, and 0 < g1 / g2 ≤ 0.

2. 18.The touch display panel of claim 1, wherein, The second sub-pixel has a circular or elliptical orthographic projection on the substrate. 19.The touch display panel of claim 18, wherein, The second sub-pixel emits blue light; the plurality of sub-pixels further include a third sub-pixel, and the third sub-pixel emits red light. The third sub-pixel has a circular or elliptical orthographic projection on the substrate. 20.The touch display panel of claim 3, wherein, The opening area of the second sub-pixel is greater than the opening area of the third sub-pixel. 21.The touch display panel of claim 3, wherein, In the first direction or the second direction, the first sub-pixels and the second sub-pixels are arranged alternately. In the first direction or the second direction, the first sub-pixels and the third sub-pixels are arranged alternately. The first direction intersects the second direction.

22. A display device, comprising the touch display panel of any one of claims 1-21 and a power module.

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