Display panel and display device

Abstract

The present invention discloses a display panel and a display device. The display panel includes an array substrate and a plurality of touch electrode blocks and a plurality of light-emitting units located on one side of the array substrate. The touch electrode block includes a plurality of hollow parts. The light-emitting unit includes at least two sub-pixels of different colors. At least two adjacent rows of hollow parts are staggered along a first direction, and the distance of the staggered is D1. The length D2 of the hollow parts along the first direction satisfies 0<D1<D2, or the vertical projection of each hollow part on the plane where the array substrate is located covers the vertical projection of a sub-pixel on the plane where the array substrate is located. The display panel and the display device provided by the embodiments of the present invention reduce the influence of the hollow parts on the areas of the touch electrode blocks on different sides of the touch point, thereby reducing the difference between the areas of the touch electrode blocks on different sides of the touch point, reducing the difference in the signal amount of the parts on different sides of the pressing area, making the detected actual coordinates closer to the theoretical coordinates, and improving the touch accuracy and linearity.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Micro Light-Emitting Diode (Mic-LED) technology represents an emerging display technology that uses microscopic LED arrays to form each pixel element. Compared with traditional LCD liquid crystal displays, micro LEDs can provide excellent contrast, faster response time and lower power consumption. Compared with OLED, micro LEDs have excellent luminous efficiency.

[0003] When existing micro-LEDs encounter small signal touch, such as passive pen, gloves, fingernails, and mid-air touch, the touch accuracy and linearity are low. Summary of the invention

[0004] The present invention provides a display panel and a display device to improve the accuracy and linearity of touch control.

[0005] In a first aspect, an embodiment of the present invention provides a display panel, comprising an array substrate and a plurality of touch electrode blocks and a plurality of light-emitting units located on one side of the array substrate;

[0006] The touch electrode block includes a plurality of hollow portions arranged in an array, the light-emitting unit includes at least two sub-pixels of different colors, and the vertical projection of each of the hollow portions on the plane where the array substrate is located covers the vertical projection of at least one of the sub-pixels on the plane where the array substrate is located;

[0007] In the same touch electrode block, along the first direction, a plurality of the hollow portions form a hollow portion row, and the plurality of the hollow portion rows are sequentially arranged along the second direction; wherein the first direction intersects with the second direction;

[0008] Wherein, at least two adjacent rows of the hollow portions are staggered along the first direction, and the distance of the staggered rows is D1, and the length of the hollow portions along the first direction is D2, wherein 0<D1<D2;

[0009] or,

[0010] The vertical projection of each hollow portion on the plane where the array substrate is located covers the vertical projection of one sub-pixel on the plane where the array substrate is located.

[0011] In a second aspect, an embodiment of the present invention further provides a display device, comprising the display panel described in the first aspect.

[0012] The display panel provided by the embodiment of the present invention realizes the touch function by arranging a plurality of touch electrode blocks on the array substrate; by arranging the vertical projection of each hollow portion on the plane where the array substrate is located to cover the vertical projection of at least one sub-pixel on the plane where the array substrate is located, the sub-pixel is prevented from being blocked by the touch electrode block and affecting the display, thereby improving the display effect. By arranging at least two adjacent hollow portions to be staggered along the first direction, the difference between the areas of the touch electrode blocks on different sides of the touch point along the first direction is reduced, the difference in the signal amount of the parts on different sides of the pressing area is reduced, the detected actual coordinates are closer to the theoretical coordinates, and the touch accuracy and linearity are improved. In addition, by arranging the vertical projection of each hollow portion on the plane where the array substrate is located to only cover the vertical projection of one sub-pixel on the plane where the array substrate is located, the area of ​​the hollow portion is greatly reduced, the distribution of the hollow portion is more dispersed, and the influence of the hollow portion on the area of ​​the touch electrode blocks on different sides of the touch point is reduced, thereby reducing the difference between the areas of the touch electrode blocks on different sides of the touch point, reducing the difference in the signal amount of the parts on different sides of the pressing area, making the detected actual coordinates closer to the theoretical coordinates, and improving the touch accuracy and linearity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A;

[0015] Figure 3 for Figure 1 Another enlarged structural schematic diagram at A;

[0016] Figure 4 A schematic diagram of a partial structure of a display panel provided by an embodiment of the present invention;

[0017] Figure 5 A schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention;

[0018] Figure 6 A schematic diagram of a partial cross-sectional structure of a display panel provided by an embodiment of the present invention;

[0019] Figure 7 A schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention;

[0020] Figure 8 A schematic diagram of a partial structure of another display panel provided by an embodiment of the present invention;

[0021] Fig. 9 A schematic diagram of a partial cross-sectional structure of another display panel provided by an embodiment of the present invention;

[0022] Fig.10 It is a structural schematic diagram of an existing special-shaped screen;

[0023] Fig.11 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention, Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A. Figure 3 for Figure 1 Another enlarged structural diagram at A, such as Figure 1-3 As shown, the display panel provided by the embodiment of the present invention includes an array substrate 10 and a plurality of touch electrode blocks 11 and a plurality of light-emitting units 12 located on one side of the array substrate 10. The touch electrode block 11 includes a plurality of hollow portions 111 arranged in an array, and the light-emitting unit 12 includes at least two sub-pixels 121 of different colors, and the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located covers the vertical projection of at least one sub-pixel 121 on the plane where the array substrate 10 is located. In the same touch electrode block 11, along the first direction X, the plurality of hollow portions 111 form a hollow portion row 21, and the plurality of hollow portion rows 21 are arranged in sequence along the second direction Y; wherein the first direction X intersects with the second direction Y.

[0026] Among them, Figure 2 As shown, at least two adjacent hollow portion rows 21 are staggered along the first direction X, and the staggered distance is D1, and the length of the hollow portion 111 along the first direction X is D2, wherein 0<D1<D2.

[0027] Or, if Figure 3 As shown, the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located covers the vertical projection of one sub-pixel 121 on the plane where the array substrate 10 is located.

[0028] Specifically, Figure 1-3As shown, a plurality of touch electrode blocks 11 and a plurality of light-emitting units 12 are arranged on the array substrate 10. The plurality of touch electrode blocks 11 are used to realize the touch function. The material of the touch electrode blocks 11 can be a transparent conductive film such as indium tin oxide (ITO), or other conductive materials. The size of the touch electrode blocks 11 can also be set according to actual needs, for example, set to 5mm*5mm, which is not limited in the embodiment of the present invention.

[0029] Continue to refer Figure 1-3 , the light emitting unit 12 includes at least two sub-pixels 121 of different colors to achieve color display. Figure 2 and Figure 3 As shown, the light-emitting unit 12 includes a red sub-pixel 121a, a green sub-pixel 121b and a blue sub-pixel 121c. In other embodiments, those skilled in the art may set the color, quantity and distribution of the sub-pixels 121 in the light-emitting unit 12 according to actual display requirements, and the embodiments of the present invention are not limited to this.

[0030] Continue to refer Figure 1-3 The touch electrode block 11 is provided with a plurality of hollow portions 111 arranged in an array, and the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located covers the vertical projection of at least one sub-pixel 121 on the plane where the array substrate 10 is located, thereby preventing the sub-pixel 121 from being blocked by the touch electrode block 11 and affecting the display, which helps to improve the display effect. In the same touch electrode block 11, along the first direction X, the plurality of hollow portions 111 form a hollow portion row 21, and the plurality of hollow portion rows 21 are arranged in sequence along the second direction Y; wherein the first direction X intersects with the second direction Y. wherein the first direction X is not limited to Figure 1-3 The first direction X is a row direction in the figure. Those skilled in the art may arbitrarily set the first direction X according to actual needs. For example, the first direction X is set to be a column direction, which is not limited in the embodiment of the present invention.

[0031] Continue to refer Figure 2 At least two adjacent hollow portion rows 21 are staggered along the first direction X. Compared with the non-staggered arrangement of adjacent hollow portion rows 21, staggering at least two adjacent hollow portion rows 21 in the touch electrode block 11 along the first direction X can improve the touch accuracy and linearity, which is specifically described below through embodiments.

[0032] Figure 4 A partial structural diagram of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 4As shown, the hollow portion rows 21 are not staggered, and the touch electrode block 11 is provided with a plurality of hollow portions 111 arranged in an array to prevent the sub-pixels 121 from being blocked by the touch electrode block 11 and affecting the display. When the display panel encounters a small signal amount touch, such as a passive pen, a glove, a fingernail, or a suspended touch, Figure 4 As shown, assuming that the touch point is operated from top to bottom, the theoretical coordinates obtained should be a straight line from top to bottom, but since the hollow portion 111 is set on the touch electrode block 11, the signal amounts on the left and right sides of the touch point are asymmetric and unstable, resulting in low touch accuracy and linearity, causing a large deviation between the theoretical coordinates and the actual coordinates.

[0033] Specifically, Figure 4 As shown, taking the length D2 of the hollow portion 111 along the first direction X as 80 μm, the length of the hollow portion 111 along the second direction Y as the same as D2, and the spacing D3 between two adjacent hollow portions 111 as 70 μm as an example, the area of ​​the touch electrode block 11 on the left side of the pressing area 41 at a certain moment is 70*70 μm 2 The area of ​​the touch electrode block 11 on the right side of the pressing area 41 is 70*(80+70+80) μm 2 , the ratio between the area of ​​the touch electrode block 11 on the left side of the pressed area 41 and the area of ​​the touch electrode block 11 on the right side of the pressed area 41 reaches 7:23, which makes the difference in signal amount between the left and right parts of the pressed area 41 large, and the actual coordinates detected will be greatly biased to the right compared with the theoretical coordinates.

[0034] Continue to refer Figure 2 In the display panel provided by the embodiment of the present invention, at least two adjacent hollow portion rows 21 in the touch electrode block 11 are arranged to be staggered along the first direction X. For example, the length D2 of the hollow portion 111 along the first direction X is 80 μm, the length of the hollow portion 111 along the second direction Y is the same as D2, the spacing D3 between two adjacent hollow portions 111 is 70 μm, and the staggered distance D1 is 40 μm. At a certain moment, the area of ​​the touch electrode block 11 on the left side of the pressing area 41 is (70*70)+(80*30) μm 2 The area of ​​the touch electrode block 11 on the right side of the pressing area 41 is 70*(70+80)+(80*30)μm 2 , the ratio between the area of ​​the touch electrode block 11 on the left side of the pressing area 41 and the area of ​​the touch electrode block 11 on the right side of the pressing area 41 is 73:129, which is Figure 4Compared with the display panel shown in the figure, the area of ​​the touch electrode block 11 on the left side of the pressing area 41 is closer to the area of ​​the touch electrode block 11 on the right side of the pressing area 41, which reduces the difference in signal quantity between the left and right parts of the pressing area 41, thereby making the actual detected coordinates closer to the theoretical coordinates, thereby improving touch accuracy and linearity.

[0035] Furthermore, by arranging at least two adjacent hollow portion rows 21 to be staggered along the first direction X, the touch accuracy and linearity are improved. Figure 4 Compared with the display panel shown, the number of light-emitting units 12 per unit area remains substantially unchanged, thereby not affecting the display brightness and chromaticity of the display panel, thereby ensuring the display effect of the display panel.

[0036] Continue to refer Figure 4 The vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located covers the vertical projections of the two light-emitting units 12 on the plane where the array substrate 10 is located, so that the area of ​​each hollow portion 111 is larger, and the hollow portion 111 has a greater impact on the area of ​​the touch electrode block 11 on the left and right parts of the pressing area 41, thereby increasing the difference between the area of ​​the touch electrode block 11 on the left and right parts of the pressing area 41, resulting in a large difference in the signal amount between the left and right parts of the pressing area 41, resulting in low touch accuracy and linearity.

[0037] Continue to refer Figure 3 In another display panel provided by an embodiment of the present invention, a vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located only covers a vertical projection of one sub-pixel 121 on the plane where the array substrate 10 is located, which greatly reduces the area of ​​the hollow portion 111, makes the distribution of the hollow portion 111 more dispersed, and reduces the influence of the hollow portion 111 on the area of ​​the touch electrode block 11 on the left and right parts of the pressing area 41, thereby reducing the difference between the area of ​​the touch electrode block 11 on the left and right parts of the pressing area 41, and reducing the signal amount difference between the left and right parts of the pressing area 41, so that the detected actual coordinates are closer to the theoretical coordinates, thereby improving the touch accuracy and linearity.

[0038] The display panel provided by the embodiment of the present invention has realized the touch function by arranging a plurality of touch electrode blocks 11 on the array substrate 10; by arranging the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located to cover the vertical projection of at least one sub-pixel 121 on the plane where the array substrate 10 is located, the sub-pixel 121 is prevented from being blocked by the touch electrode block 11 and affecting the display, thereby improving the display effect. By arranging at least two adjacent hollow portion rows 21 to be staggered along the first direction X, the difference between the areas of the touch electrode blocks 11 on different sides of the touch point along the first direction X is reduced, and the difference in the signal amount of the parts on different sides of the pressing area 41 is reduced, so that the actual coordinates detected are closer to the theoretical coordinates, and the touch accuracy and linearity are improved. Furthermore, by setting the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located to only cover the vertical projection of one sub-pixel 121 on the plane where the array substrate 10 is located, the area of ​​the hollow portion 111 is greatly reduced, making the distribution of the hollow portion 111 more dispersed, thereby reducing the influence of the hollow portion 111 on the area of ​​the touch electrode block 11 on different sides of the touch point, thereby reducing the difference in the area of ​​the touch electrode block 11 on different sides of the touch point, reducing the difference in the signal amount on different sides of the pressing area 41, making the detected actual coordinates closer to the theoretical coordinates, and improving the touch accuracy and linearity.

[0039] Continue to refer Figure 2 Optionally, any two adjacent hollow portion rows 21 are staggered along the first direction X, and the staggered distance is D1, and the length of the hollow portion 111 along the first direction X is D2, wherein 0<D1<D2.

[0040] Among them, Figure 2 As shown, by setting any two adjacent hollow portion rows 21 to be offset along the first direction X, the difference between the areas of the touch electrode blocks 11 on the left and right sides of the touch point can be reduced at any position of the touch point, so that the actual coordinates detected at any position are closer to the theoretical coordinates, thereby improving the touch accuracy and linearity at any position of the display panel.

[0041] Continue to refer Figure 2 Optionally, the spacing between two adjacent hollow portions 111 in the same hollow portion row 21 is D3, wherein (1 / 3)*D2≤D1≤(2 / 3)*D2, or (1 / 5)*(D2+D3)≤D1≤(2 / 5)*(D2+D3).

[0042] Among them, Figure 2 As shown, if the offset distance D1 is too small, the area difference between the touch electrode blocks 11 on the left and right sides of the touch point cannot be significantly reduced, thereby failing to achieve the effect of improving the touch accuracy and linearity; if the offset distance D1 is too large, the effect of improving the touch accuracy and linearity cannot be achieved. Figure 2As shown, if the distance D1 of the even-numbered hollow portion row 21 offset to the right is too large compared to the odd-numbered hollow portion row 21, it is equivalent to the even-numbered hollow portion row 21 being offset to the left by a smaller distance compared to the odd-numbered hollow portion row 21, so that the area difference of the touch electrode blocks 11 on the left and right sides of the touch point cannot be significantly reduced, and the effect of improving the touch accuracy and linearity cannot be achieved. Therefore, the display panel provided by the embodiment of the present invention sets the offset distance D1 to satisfy (1 / 3)*D2≤D1≤(2 / 3)*D2, or (1 / 5)*(D2+D3)≤D1≤(2 / 5)*(D2+D3) to ensure that the effect of improving the touch accuracy and linearity is achieved.

[0043] In addition, by setting the misaligned distance D1 to satisfy (1 / 3)*D2≤D1≤(2 / 3)*D2, or, (1 / 5)*(D2+D3)≤D1≤(2 / 5)*(D2+D3), based on the size of the hollow portion 111 and the spacing between the hollow portions 111 in the existing display panel, the misaligned distance D1 will not exceed 100um, so that the human eye cannot distinguish the misalignment of the hollow portion row 21 along the first direction X, so that the misalignment of the hollow portion row 21 along the first direction X will not affect the display effect.

[0044] Figure 5 A partial structural diagram of another display panel provided by an embodiment of the present invention is shown in FIG. Figure 5 As shown, optionally, along the second direction Y, multiple hollow portion columns 111 form a hollow portion column 22, and the multiple hollow portion columns 22 are arranged in sequence along the first direction X, at least two adjacent hollow portion columns 22 are staggered along the second direction Y, and the staggered distance is D4, and the length of the hollow portion 111 along the second direction Y is D5, wherein 0<D4<D5.

[0045] Among them, continue to refer to Figure 4 , the hollow portion row 21 is not staggered, when the display panel encounters a small signal touch, such as a passive pen, a glove, a fingernail, or a suspended touch, Figure 4 As shown, assuming that the touch point is operated from left to right, the obtained theoretical coordinates should be a straight line from left to right, but since the hollow portion 111 is set on the touch electrode block 11, the signal amounts on the left and right sides of the touch point are asymmetric and unstable, resulting in low touch accuracy and linearity, causing a large deviation between the theoretical coordinates and the actual coordinates.

[0046] Specifically, Figure 4 As shown, taking the length D2 of the hollow portion 111 along the first direction X as 80 μm, the length of the hollow portion 111 along the second direction Y as the same as D2, and the spacing D3 between two adjacent hollow portions 111 as 70 μm, the area of ​​the touch electrode block 11 at the lower side of the pressing area 42 at a certain moment is 70*70 μm 2The area of ​​the touch electrode block 11 on the upper side of the pressing area 42 is 70*(80+70+80) μm 2 , the ratio between the area of ​​the touch electrode block 11 in the lower part of the pressing area 42 and the area of ​​the touch electrode block 11 in the upper part of the pressing area 42 reaches 7:23, so that the difference in signal amount between the lower part and the upper part of the pressing area 42 is large, and the actual coordinates detected will be greatly biased to the upper side compared with the theoretical coordinates.

[0047] Continue to refer Figure 5 In the display panel provided by the embodiment of the present invention, at least two adjacent hollow portion columns 22 in the touch electrode block 11 are arranged to be offset along the second direction Y. For example, the length D2 of the hollow portion 111 along the first direction X is 80 μm, the length of the hollow portion 111 along the second direction Y is the same as D2, the spacing D3 between two adjacent hollow portions 111 is 70 μm, and the offset distance D1 along the second direction Y is 40 μm. At a certain moment, the area of ​​the touch electrode block 11 at the lower side of the pressing area 42 is (70*70)+(80*30) μm 2 The area of ​​the touch electrode block 11 on the upper side of the pressing area 42 is 70*(70+80)+(80*30)μm 2 , the ratio between the area of ​​the touch electrode block 11 on the left side of the pressing area 42 and the area of ​​the touch electrode block 11 on the right side of the pressing area 42 is 73:129, which is Figure 4 Compared with the display panel shown, the area of ​​the touch electrode block 11 in the lower part of the pressing area 42 is closer to the area of ​​the touch electrode block 11 in the upper part of the pressing area 42, which reduces the difference in signal amount between the lower part and the upper part of the pressing area 42, so that the actual detected coordinates are closer to the theoretical coordinates, thereby improving the touch accuracy and linearity.

[0048] Furthermore, by displacing at least two adjacent hollow portion rows 22 along the second direction Y, the touch accuracy and linearity are improved. Figure 4 Compared with the display panel shown, the number of light-emitting units 12 per unit area remains substantially unchanged, thereby not affecting the display brightness and chromaticity of the display panel, thereby ensuring the display effect of the display panel.

[0049] It should be noted that the second direction Y is not limited to Figure 5 The second direction Y is a column direction in the figure. Those skilled in the art may arbitrarily set the second direction Y according to actual needs. For example, the second direction Y is set to be a row direction, which is not limited in the embodiment of the present invention.

[0050] Continue to refer Figure 5Optionally, any two adjacent hollow portion columns 22 are staggered along the second direction Y, and the staggered distance is D4, and the length of the hollow portion 111 along the second direction Y is D5, wherein 0<D4<D5.

[0051] Among them, Figure 5 As shown, by setting any two adjacent hollow portion columns 22 to be offset along the second direction Y, the difference between the areas of the touch electrode blocks 11 on the upper and lower sides of the touch point can be reduced at any position of the touch point, so that the actual coordinates detected at any position are closer to the theoretical coordinates, thereby improving the touch accuracy and linearity at any position of the display panel.

[0052] Continue to refer Figure 5 Optionally, the spacing between two adjacent hollow portions 111 in the same hollow portion column 22 is D6, wherein (1 / 3)*D5≤D4≤(2 / 3)*D5, or (1 / 5)*(D5+D6)≤D4≤(2 / 5)*(D5+D6).

[0053] Among them, Figure 5 As shown, if the offset distance D4 is too small, the area difference between the touch electrode blocks 11 on the upper and lower sides of the touch point cannot be significantly reduced, thereby failing to achieve the effect of improving the touch accuracy and linearity; if the offset distance D4 is too large, the effect of improving the touch accuracy and linearity cannot be achieved. Figure 5 As shown, if the distance D4 of the even-numbered hollow portion columns 22 offset upwards compared to the odd-numbered hollow portion columns 22 is too large, it is equivalent to the even-numbered hollow portion columns 22 being offset downwards by a smaller distance compared to the odd-numbered hollow portion columns 22, and thus the area difference of the touch electrode blocks 11 on the upper and lower sides of the touch point cannot be significantly reduced, and the effect of improving the touch accuracy and linearity cannot be achieved. Therefore, the display panel provided by the embodiment of the present invention is set to satisfy the offset distance D4 (1 / 3)*D5≤D4≤(2 / 3)*D5, or (1 / 5)*(D5+D6)≤D4≤(2 / 5)*(D5+D6) to ensure that the effect of improving the touch accuracy and linearity is achieved.

[0054] In addition, by setting the offset distance D4 to satisfy (1 / 3)*D5≤D4≤(2 / 3)*D5, or, (1 / 5)*(D5+D6)≤D4≤(2 / 5)*(D5+D6), based on the size of the hollow portion 111 and the spacing between the hollow portions 111 in the existing display panel, the offset distance D4 will not exceed 100um, so that the human eye cannot distinguish the offset of the hollow portion column 22 along the second direction Y, so that the offset of the hollow portion column 22 along the second direction Y will not affect the display effect.

[0055] Continue to refer Figure 2, Optionally, the area of ​​each hollow portion 111 is equal.

[0056] Among them, Figure 2 As shown, by setting the area of ​​each hollow portion 111 to be equal, the uniformity of the entire surface of the touch performance can be improved and the uniform display effect can be ensured.

[0057] Continue to refer Figure 5 Optionally, the spacing between two adjacent hollow portions 111 in the same hollow portion row 21 is D3, the length of the hollow portion 111 along the second direction Y is D5, and the spacing between two adjacent hollow portions 111 in the same hollow portion column 22 is D6; wherein, 2 / 3≤D2 / D3≤4 / 3, 2 / 3≤D5 / D6≤4 / 3.

[0058] Among them, Figure 5 As shown, if the ratio of the length D2 of the hollow portion 111 along the first direction X to the spacing D3 between two adjacent hollow portions 111 in the same hollow portion row 21 is too large, the area occupied by the hollow portion 111 is large, so that the hollow portion 111 has a greater impact on the area of ​​the touch electrode block 11 on different sides of the touch point, so that the difference between the areas of the touch electrode blocks 11 on different sides of the touch point caused by the hollow portion 111 is large, so that the signal amount difference on different sides of the touch point is large, resulting in low touch accuracy and linearity. If the ratio of the length D2 of the hollow portion 111 along the first direction X to the spacing D3 between two adjacent hollow portions 111 in the same hollow portion row 21 is too small, the area occupied by the hollow portion 111 is small, and the number of light-emitting units 12 will also be reduced accordingly, thereby reducing the display resolution and affecting the display effect. The display panel provided in the embodiment of the present invention, by setting 2 / 3≤D2 / D3≤4 / 3, ensures the display effect while also helping to improve the touch accuracy and linearity.

[0059] Similarly, the display panel provided in the embodiment of the present invention can also achieve improved touch accuracy and linearity while ensuring the display effect by setting 2 / 3≤D5 / D6≤4 / 3, which will not be described in detail here.

[0060] Continue to refer Figure 1 Optionally, the multiple touch electrode blocks 11 are insulated from each other. The display panel provided by the embodiment of the present invention also includes a touch chip 31 and a plurality of touch wires 32. The plurality of touch wires 32 are arranged corresponding to the plurality of touch electrode blocks 11, wherein a first end 321 of the touch wire 32 is electrically connected to the touch chip 31, and a second end 322 of the touch wire 32 is electrically connected to the corresponding touch electrode block 11.

[0061] Specifically, Figure 1As shown, multiple touch electrode blocks 11 are self-capacitive structures. The touch electrode blocks 11 receive touch drive signals provided by the touch chip 31 through the touch wiring 32. The touch electrode blocks 11 form a capacitance to the ground. When a user's finger or other touch object performs a touch operation on the display panel, the capacitance to the ground of the touch electrode block 11 changes, causing its charge to change, thereby generating a current. The current is a touch sensing signal, and the touch chip 31 can determine the position of the touch point according to the touch sensing signal output by each touch electrode block 11. Among them, by using a self-capacitive touch electrode block, the touch scanning speed can be increased, and the touch response speed can be increased.

[0062] It should be noted that the touch chip 31 can use a touch and display driver integrated circuit (TDDIIC) that integrates display driving function and touch driving function to reduce the number of chips set in the display panel, thereby helping to compress the border width of the display panel, which is conducive to realizing a thin and light display panel with a high screen-to-body ratio, ultra-narrow border or even borderless display panel. In other embodiments, the touch chip 31 can also use an independent touch IC (Touch IC), which is not limited in the embodiments of the present invention.

[0063] Optionally, the light emitting unit 12 is a light emitting diode.

[0064] Specifically, the light-emitting unit 12 can be a light-emitting diode (LED) or a micro light-emitting diode (Mic-LED), but is not limited to this. The above-mentioned light-emitting diode, as a current-type light-emitting device, has many advantages such as active light-emitting, fast response speed, wide viewing angle, rich colors, high brightness, and low power consumption.

[0065] Among them, Micro Light-Emitting Diode (Mic-LED) can use Micro-LED and Mini-LED. Micro-LED refers to LED chips with a grain size of less than 100 microns, which can realize display screens with pixel particles of 0.05 mm or smaller. Micro-LED has very low power consumption, better material stability and no image retention. Mini-LED refers to LED chips with a grain size of about 100 microns to 1000 microns. When Mini-LED is used, it has a high yield rate and has special-shaped cutting characteristics. It can also form a high-curved backlight form with a flexible substrate and has better color rendering.

[0066] Figure 6A partial cross-sectional structural diagram of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 6 As shown, optionally, a plurality of touch electrode blocks 11 and a plurality of light emitting units 12 are arranged in the same layer.

[0067] Among them, Figure 6 As shown, by arranging a plurality of touch electrode blocks 11 and a plurality of light-emitting units 12 in the same layer, the thickness of the display panel can be reduced, which is conducive to realizing a thinner and lighter display panel.

[0068] Continue to refer Figure 2 Optionally, at least two adjacent hollow portion rows 21 are staggered along the first direction X, and the distance of the staggered is D1, and the length of the hollow portion 111 along the first direction X is D2, wherein 0<D1<D2. The vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located covers the vertical projection of at least one light emitting unit 12 on the plane where the array substrate 10 is located.

[0069] Among them, Figure 2 As shown, by setting the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located to cover the vertical projection of at least one light-emitting unit 12 on the plane where the array substrate 10 is located, the precision requirement for preparing the hollow portion 111 and the light-emitting unit 12 can be reduced, which is easier to implement in terms of process, helps to improve product yield and reduce production costs.

[0070] Figure 7 A partial structural diagram of another display panel provided by an embodiment of the present invention is shown in FIG. Figure 7 As shown, optionally, at least two adjacent hollow portion rows 21 are staggered along the first direction X, and the staggered distance is D1, and the length of the hollow portion 111 along the first direction X is D2, where 0<D1<D2. The vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located covers the vertical projection of a sub-pixel 121 on the plane where the array substrate 10 is located.

[0071] Among them, Figure 7As shown, by setting at least two adjacent hollow portion rows 21 to be staggered along the first direction X, the difference between the areas of the touch electrode blocks 11 on different sides of the touch point along the first direction X is reduced, and the difference in the signal amount of the parts on different sides of the pressing area 41 is reduced, so that the detected actual coordinates are closer to the theoretical coordinates, and the touch accuracy and linearity are improved. At the same time, by setting the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located to only cover the vertical projection of one sub-pixel 121 on the plane where the array substrate 10 is located, the area of ​​the hollow portion 111 is greatly reduced, so that the distribution of the hollow portion 111 is more dispersed, and the influence of the hollow portion 111 on the area of ​​the touch electrode blocks 11 on different sides of the touch point is further reduced, thereby further reducing the difference between the areas of the touch electrode blocks 11 on different sides of the touch point, reducing the difference in the signal amount of the parts on different sides of the pressing area 41, so that the detected actual coordinates are closer to the theoretical coordinates, and the touch accuracy and linearity are improved.

[0072] Continue to refer Figure 2 Optionally, in the same light-emitting unit 12, the distance between two adjacent sub-pixels 121 is H1, where 3μm≤H1≤5μm.

[0073] Among them, Figure 2 As shown, if the distance H1 between two adjacent sub-pixels 121 is too large, the density of the light-emitting unit 12 will be reduced, thereby reducing the display resolution and affecting the display effect. If the distance H1 between two adjacent sub-pixels 121 is too small, a short circuit is likely to occur between the two adjacent sub-pixels 121, thereby affecting the display effect. In addition, the process precision requirements are also high, which increases the difficulty of preparation, reduces the yield rate, and increases the production cost. The display panel provided by the embodiment of the present invention ensures that the display resolution is high while being easy to prepare by setting the distance H1 between two adjacent sub-pixels 121 to satisfy 3μm≤H1≤5μm, thereby reducing the production cost.

[0074] Continue to refer Figure 2 Optionally, the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located covers the vertical projections of at least two light-emitting units 12 on the plane where the array substrate 10 is located. In the same light-emitting unit 12, the sub-pixels 121 are arranged along the first direction X, and at least two light-emitting units 12 are arranged along the second direction Y. The distance between two adjacent light-emitting units 12 is H2, where 1μm≤H2≤2μm.

[0075] Among them, Figure 2As shown, in the same light-emitting unit 12, the sub-pixels 121 are arranged along the first direction X. If the distance H2 between two adjacent light-emitting units 12 is too large, the density of the light-emitting units 12 will be reduced, thereby reducing the display resolution and affecting the display effect. If the distance H2 between two adjacent light-emitting units 12 is too small, a short circuit is likely to occur between the two adjacent light-emitting units 12, thereby affecting the display effect, and the process precision requirements are also high, which increases the difficulty of preparation, reduces the yield rate, and increases the production cost. The display panel provided in the embodiment of the present invention ensures that the display resolution is high while being easy to prepare by setting the distance H2 between two adjacent light-emitting units 12 to satisfy 1μm≤H2≤2μm, thereby reducing the production cost.

[0076] Figure 8 A partial structural diagram of another display panel provided by an embodiment of the present invention is shown in FIG. Figure 8 As shown, in the same light emitting unit 12 , the sub-pixels 121 are arranged along the second direction Y, at least two light emitting units 12 are arranged along the first direction X, and the distance between two adjacent light emitting units 12 is H3 , wherein 1 μm≤H3≤2 μm.

[0077] Among them, Figure 8 As shown, the sub-pixel 121 is arranged along the second direction Y, and at least two light-emitting units 12 are arranged along the first direction X. If the distance H3 between two adjacent light-emitting units 12 is too large, the density of the light-emitting units 12 will be reduced, thereby reducing the display resolution and affecting the display effect. If the distance H3 between two adjacent light-emitting units 12 is too small, a short circuit is likely to occur between the two adjacent light-emitting units 12, thereby affecting the display effect, and the process precision requirements are also high, which increases the difficulty of preparation, reduces the yield rate, and increases the production cost. The display panel provided in the embodiment of the present invention ensures that the display resolution is high while being easy to prepare by setting the distance H3 between two adjacent light-emitting units 12 to satisfy 1μm≤H2≤2μm, thereby reducing the production cost.

[0078] Continue to refer Figure 2 Optionally, the shortest distance between the sub-pixel 121 and the edge of the hollow portion 111 is H4, where 1 μm≤H4≤2 μm.

[0079] Among them, Figure 2As shown, if the shortest distance H4 between the sub-pixel 121 and the edge of the hollow portion 111 is too large, the area of ​​the hollow portion 111 will be increased, so that the hollow portion 111 has a greater impact on the area of ​​the touch electrode blocks 11 on both sides of the touch point, thereby increasing the difference between the areas of the touch electrode blocks 11 on both sides of the touch point, resulting in a large difference in the signal amount on both sides of the touch point, resulting in low touch accuracy and linearity. If the shortest distance H4 between the sub-pixel 121 and the edge of the hollow portion 111 is too small, a short circuit is likely to occur between the sub-pixel 121 and the hollow portion 111, thereby affecting the display and touch effect, and the process accuracy requirements are also high, increasing the difficulty of preparation, resulting in a decrease in the yield rate and increasing the production cost. The display panel provided by the embodiment of the present invention improves the touch accuracy and linearity while being easy to prepare by setting the shortest distance H4 between the sub-pixel 121 and the edge of the hollow portion 111 to meet 1μm≤H4≤2μm, thereby reducing the production cost.

[0080] Continue to refer Figure 6 Optionally, the display panel provided in the embodiment of the present invention further includes a first planarization layer 51, an optical adhesive layer OCA, and a protective glass CG, which are sequentially arranged on the side of the plurality of touch electrode blocks 11 and the plurality of light-emitting units 12 away from the array substrate 10. The first planarization layer 51 is used for planarization, and the protective glass CG is bonded to the first planarization layer 51 through the optical adhesive layer OCA, thereby protecting the display panel.

[0081] In other embodiments, those skilled in the art may set an encapsulation layer according to actual needs to protect the display panel. For example, an encapsulation layer may be set on the side of the multiple touch electrode blocks 11 and the multiple light-emitting units 12 away from the array substrate 10 to protect the multiple touch electrode blocks 11 and the multiple light-emitting units 12 from water and oxygen. The encapsulation layer may be a thin film encapsulation layer, and the thin film encapsulation layer may include a three-layer structure of inorganic layer / organic layer / inorganic layer, which has the advantages of being thin, light, flexible, etc. while isolating water vapor. The embodiments of the present invention are not limited to this.

[0082] Fig. 9 A partial cross-sectional structural diagram of another display panel provided by an embodiment of the present invention is shown in FIG. Fig. 9 As shown, optionally, the array substrate 10 includes a substrate 101 and a pixel circuit located on one side of the substrate 101, so as to provide a driving signal for the light-emitting unit 12 to drive the light-emitting unit 12 to emit light. The pixel circuit includes a thin film transistor 60, and the thin film transistor 60 includes an active layer 61, a gate insulating layer GI, a gate layer 62, an interlayer dielectric layer IMD, an insulating intermediate layer ILD, and a source-drain electrode layer 63 stacked on one side of the substrate 101.

[0083] Among them, the pixel circuit adopts a thin film transistor (TFT) to reduce production costs. In other embodiments, the pixel circuit may also adopt a field effect transistor (FET) to reduce power consumption, which is not limited in the embodiment of the present invention.

[0084] Continue to refer Fig. 9 Optionally, the array substrate 10 also includes a passivation layer PV and a second planarization layer PLN sequentially arranged on the side of the insulating intermediate layer ILD away from the substrate 101, and a buffer layer Buffer is arranged on the side of the substrate 101 close to the gate insulating layer GI, wherein the buffer layer Buffer can play the role of shockproof, buffering and isolation.

[0085] Continue to refer Fig. 9 Optionally, the array substrate 10 further includes a data line 33, which is used to provide a data signal for the pixel circuit, wherein the data line 33 can be arranged in the same layer as the source-drain electrode layer 63 to reduce a metal layer, thereby helping to reduce the thickness of the display panel and achieve a lightweight setting; at the same time, the data line 33 can use the same metal material as the source-drain electrode layer 63 and be prepared in the same process, thereby shortening the preparation time and helping to reduce production costs.

[0086] Continue to refer Fig. 9 Optionally, the touch line 32 is arranged on the film layer between the data line 33 and the touch electrode block 11, and is connected to the touch electrode block 11 through punching, so that the misaligned setting of the hollow portion 111 in the touch electrode block 11 does not affect the distribution of the touch line 32, reducing the design work.

[0087] Continue to refer Fig. 9 Optionally, the light emitting unit 12 is bonded to the pixel circuit through the eutectic electrode 64 to ensure effective transmission of the signal and a normal display process.

[0088] It should be noted that Fig. 9 The display panel shown is only an example, and those skilled in the art may set the film layer structure of the array substrate 10 according to actual needs, which is not limited in the embodiment of the present invention.

[0089] Optionally, the display panel provided by the embodiment of the present invention may be applied to special-shaped screens to improve touch accuracy and linearity.

[0090] For example, Fig.10 It is a structural schematic diagram of an existing special-shaped screen, such as Fig.10As shown, the special-shaped screen adopts a "bangs" design (also called notch), and a special-shaped area 70 is formed on the top of the special-shaped screen. Seven points are selected on the special-shaped screen for touch detection, and the detection results are shown in Table 1.

[0091] Table 1: Linearity and precision measurement results of special-shaped screens

[0092]

[0093]

[0094] As shown in Table 1, when the irregular-shaped area 70 is dug out, the touch signal amount at the irregular-shaped area 70 will be asymmetric, causing the linearity and accuracy of the irregular-shaped area 70 to fluctuate greatly, and the touch performance will be reduced.

[0095] When the display panel provided by the embodiment of the present invention can be applied to a special-shaped screen, by setting at least two adjacent hollow portion rows 21 to be staggered along the first direction X, the difference between the areas of the touch electrode blocks 11 on different sides of the touch point along the first direction X is reduced, and the difference in the signal amount of the parts on different sides of the pressing area 41 is reduced, so that the detected actual coordinates are closer to the theoretical coordinates, and the touch accuracy and linearity are improved. In addition, by setting the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located to only cover the vertical projection of one sub-pixel 121 on the plane where the array substrate 10 is located, the area of ​​the hollow portion 111 is greatly reduced, the distribution of the hollow portion 111 is more dispersed, and the influence of the hollow portion 111 on the area of ​​the touch electrode blocks 11 on different sides of the touch point is reduced, thereby reducing the difference between the areas of the touch electrode blocks 11 on different sides of the touch point, reducing the difference in the signal amount of the parts on different sides of the pressing area 41, making the detected actual coordinates closer to the theoretical coordinates, and improving the touch accuracy and linearity.

[0096] When the display panel provided by the embodiment of the present invention is applied to a special-shaped screen, a rectangular display panel can be prepared first, and at least two adjacent hollow portion rows 21 are set to be staggered along the first direction X, and the staggered distance is D1, and the length of the hollow portion 111 along the first direction X is D2, wherein 0<D1<D2; or, the vertical projection of each hollow portion 111 on the plane where the array substrate 10 is located is set to cover the vertical projection of a sub-pixel 121 on the plane where the array substrate 10 is located. Then, the display panel can be directly cut to form a special-shaped area, and the process is simple and easy to implement.

[0097] The display panel provided by the embodiment of the present invention can reduce the difference between the areas of the touch electrode blocks 11 on the left and right sides of the touch point at any position by setting any two adjacent hollow portion rows 21 to be offset along the first direction X, thereby making the actual coordinates detected at any position closer to the theoretical coordinates, thereby improving the touch accuracy and linearity at any position of the display panel. By setting any two adjacent hollow portion columns 22 to be offset along the second direction Y, the difference between the areas of the touch electrode blocks 11 on the upper and lower sides of the touch point at any position can be reduced, thereby making the actual coordinates detected at any position closer to the theoretical coordinates, thereby improving the touch accuracy and linearity at any position of the display panel. By setting the area of ​​each hollow portion 111 to be equal, the uniformity of the entire surface of the touch performance can be improved, and the display effect can be guaranteed to be uniform. By adopting a self-capacitive touch electrode block, the touch scanning speed can be increased, and the touch response speed can be increased. By arranging a plurality of touch electrode blocks 11 and a plurality of light-emitting units 12 in the same layer, the thickness of the display panel can be reduced, which is conducive to realizing a thinner and lighter display panel.

[0098] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.11 A schematic diagram of a display device according to an embodiment of the present invention is shown in FIG. Fig.11 As shown, the display device 90 includes the display panel 91 described in any embodiment of the present invention. Therefore, the display device 90 provided in the embodiment of the present invention has the technical effect of the technical solution in any of the above embodiments, and the explanation of the same or corresponding structures and terms as the above embodiments will not be repeated here. The display device 90 provided in the embodiment of the present invention can be Fig.11 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiments of the present invention do not specifically limit this.

[0099] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: It comprises an array substrate and a plurality of touch electrode blocks and a plurality of light-emitting units located on one side of the array substrate; The touch electrode block includes a plurality of hollow portions arranged in an array, the light-emitting unit includes at least two sub-pixels of different colors, and the vertical projection of each of the hollow portions on the plane where the array substrate is located covers the vertical projection of at least one of the sub-pixels on the plane where the array substrate is located; In the same touch electrode block, along the first direction, a plurality of the hollow portions form a hollow portion row, and the plurality of the hollow portion rows are sequentially arranged along the second direction; wherein the first direction intersects with the second direction; At least two adjacent rows of hollow portions are staggered along the first direction, and the distance of the staggered rows is D1, and the length of the hollow portions along the first direction is D2, wherein 0<D1<D2; or, The vertical projection of each hollow portion on the plane where the array substrate is located covers the vertical projection of one sub-pixel on the plane where the array substrate is located; Any two adjacent rows of hollow portions are staggered along the first direction, and the distance of the staggered rows is D1, and the length of the hollow portions along the first direction is D2, wherein 0<D1<D2; The distance between two adjacent hollow portions in the same hollow portion row is D3, wherein (1 / 3)*D2≤D1≤(2 / 3)*D2, or (1 / 5)*(D2+D3)≤D1≤(2 / 5)*(D2+D3); Among them, D1≤100μm.

2. The display panel according to claim 1, characterized in that: Along the second direction, the plurality of hollow portions form a hollow portion row, and the plurality of hollow portion rows are arranged in sequence along the first direction; At least two adjacent hollow portion columns are staggered along the second direction, and the staggered distance is D4. The length of the hollow portion along the second direction is D5, wherein 0<D4<D5.

3. The display panel according to claim 2, characterized in that: Any two adjacent hollow portion columns are staggered along the second direction, and the staggered distance is D4. The length of the hollow portion along the second direction is D5, wherein 0<D4<D5.

4. The display panel according to claim 2 or 3, characterized in that: The distance between two adjacent hollow parts in the same hollow part column is D6, wherein (1 / 3)*D5≤D4≤(2 / 3)*D5, or (1 / 5)*(D5+D6)≤D4≤(2 / 5)*(D5+D6).

5. The display panel according to claim 1, characterized in that: The area of ​​each hollow portion is equal.

6. The display panel according to claim 1, characterized in that: The distance between two adjacent hollow portions in the same hollow portion row is D3; the length of the hollow portion along the second direction is D5; the distance between two adjacent hollow portions in the same hollow portion column is D6; Among them, 2 / 3≤D2 / D3≤4 / 3, 2 / 3≤D5 / D6≤4 / 3.

7. The display panel according to claim 1, characterized in that: The plurality of touch electrode blocks are insulated from each other; The display panel also includes a touch chip and a plurality of touch wires, wherein the plurality of touch wires are arranged corresponding to the plurality of touch electrode blocks, wherein a first end of the touch wire is electrically connected to the touch chip, and a second end of the touch wire is electrically connected to the corresponding touch electrode block.

8. The display panel according to claim 1, characterized in that: The light emitting unit is a light emitting diode.

9. The display panel according to claim 8, characterized in that: The plurality of touch electrode blocks and the plurality of light emitting units are arranged in the same layer.

10. The display panel according to claim 1, characterized in that: At least two adjacent rows of the hollow portions are staggered along the first direction, and the distance of the staggered rows is D1, and the length of the hollow portions along the first direction is D2, wherein 0<D1<D2; The vertical projection of each hollow portion on the plane where the array substrate is located covers the vertical projection of at least one light-emitting unit on the plane where the array substrate is located.

11. The display panel according to claim 10, characterized in that: In the same light-emitting unit, the distance between two adjacent sub-pixels is H1, wherein 3 μm≤H1≤5 μm.

12. The display panel according to claim 9, characterized in that: The vertical projection of each hollow portion on the plane where the array substrate is located covers the vertical projections of at least two light-emitting units on the plane where the array substrate is located; In the same light-emitting unit, the sub-pixels are arranged along the first direction, at least two light-emitting units are arranged along the second direction, and the distance between two adjacent light-emitting units is H2, wherein 1 μm≤H2≤2 μm; or, In the same light-emitting unit, the sub-pixels are arranged along the second direction, at least two light-emitting units are arranged along the first direction, and a distance between two adjacent light-emitting units is H3, wherein 1 μm≤H3≤2 μm.

13. The display panel according to claim 1, characterized in that: The shortest distance between the sub-pixel and the edge of the hollow portion is H4, wherein 1 μm≤H4≤2 μm.

14. A display device, characterized in that: A display panel comprising any one of claims 1-13.

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