Touch display panel

Abstract

The present application discloses a touch display panel. The present application solves the problem of large color deviation of the display panel at a side viewing angle by making the difference between the shortest distances between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane greater than or equal to 0 micrometer and less than or equal to 1 micrometer, and the difference between the shortest distances between points on the outer contour of different sub-pixel units and the grid of the grid electrode on the display plane greater than or equal to 0 micrometer and less than or equal to 1 micrometer, that is, the shortest distances between any point on the outer contour of any two sub-pixel units and the grid of the grid electrode on the display plane are close to or even equal. Therefore, the brightness displayed by each sub-pixel at a side viewing angle is relatively uniform, especially the brightness displayed by sub-pixels of different colors at a side viewing angle is relatively uniform, thereby solving the problem of large color deviation of the display panel at a side viewing angle.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a touch display panel. Background Art

[0002] The touch technology of display panels has gradually developed from the technology of add-on touch panels (TP) to the direct on thin film encapsulation touch (DOT) technology with touch sensors on liquid crystal panels. Compared with the external TP, DOT is directly integrated on the display panel, does not require a separate flexible circuit board, has lower costs, and is more conducive to achieving flexible bending of the display panel.

[0003] Traditional DOT technology is a metal-mesh structure using metal grid lines, that is, the touch signal is captured and recognized through mutual capacitance sensing of the metal grid lines after exposure and etching, and the sub-pixels are located in the metal grid to avoid affecting the light emission of the sub-pixels. At present, the display panels using the mutual capacitance method include multiple pixel units, each pixel unit includes multiple sub-pixels, and the sub-pixels include red sub-pixels, green sub-pixels, and blue sub-pixels. However, the brightness displayed by different sub-pixels of the display panels using the mutual capacitance method is uneven at the side viewing angle, especially the brightness displayed by sub-pixels of different colors at the side viewing angle is uneven, resulting in a large color deviation at the side viewing angle. Summary of the invention

[0004] The present application provides a touch display panel to solve the problem of large color deviation of the display panel when viewed from a side angle.

[0005] The present application provides a touch display panel, which includes:

[0006] A display light-emitting layer, the display light-emitting layer comprising a plurality of sub-pixel units arranged at intervals, and the sub-pixel unit comprises at least one sub-pixel;

[0007] A grid electrode, wherein the grid electrode is arranged on the side of the display light emitting layer from which light is emitted, and the grid of the grid electrode is arranged around the sub-pixel unit; wherein,

[0008] The difference in the shortest distance between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane is greater than or equal to 0 micrometers and less than or equal to 1 micrometer, and the difference in the shortest distance between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane is greater than or equal to 0 micrometers and less than or equal to 1 micrometer.

[0009] Optionally, in some embodiments of the present application, through holes are provided on the grid lines of the grid electrode.

[0010] Optionally, in some embodiments of the present application, when the ratio of the shortest distance between adjacent sub-pixel units to the line width of the grid lines of the grid electrode located between adjacent sub-pixel units is less than 10 / 3, through holes are provided on the grid lines of the grid electrode located between adjacent sub-pixel units.

[0011] Optionally, in some embodiments of the present application, the sub-pixel unit includes a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, and the center line of two of the second sub-pixel units and two of the third sub-pixel units located around the first sub-pixel unit constitutes a virtual isosceles trapezoid; the center of the first pixel unit is located at the intersection of the perpendicular bisector of the center line of the two second sub-pixel units around it and the perpendicular bisector of the center line of the two third sub-pixel units around it; the centers of each of the second sub-pixel units and the centers of each of the third sub-pixel units located around the first pixel unit coincide with the vertices of the virtual isosceles trapezoid respectively; wherein,

[0012] When the center line connecting the adjacent second sub-pixel units and the third sub-pixel units is located at the long bottom side of the virtual isosceles trapezoid, a through hole is provided on the grid line of the grid electrode located between the adjacent second sub-pixel units and the third sub-pixel units.

[0013] Optionally, in some embodiments of the present application, when a center line connecting adjacent second sub-pixel units and third sub-pixel units is located at the waist of the virtual isosceles trapezoid, a through hole is provided on the grid line of the grid electrode located between the adjacent second sub-pixel units and the third sub-pixel units.

[0014] Optionally, in some embodiments of the present application, the sub-pixel unit includes at least two sub-pixels, the outer contour of each of the at least two sub-pixels is equally spaced outward to form a virtual contour, there is an intersection between the virtual contours of any two of the at least two sub-pixels, and the outer contour of the sub-pixel unit is an outer contour formed by the union of the virtual contours of the at least two sub-pixels.

[0015] Optionally, in some embodiments of the present application, an inner contour shape of a cross section of the grid of the grid electrode on the display plane is the same as a cross-sectional shape of a sub-pixel located within the grid of the grid electrode on the display plane.

[0016] Optionally, in some embodiments of the present application, the sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel and a third sub-pixel, and the first sub-pixel, the second sub-pixel and the third sub-pixel have the same cross-sectional shape on the display plane.

[0017] Optionally, in some embodiments of the present application, the cross-sections of the first sub-pixel, the second sub-pixel, and the third sub-pixel on the display plane are in the shape of a square, a circle, or an ellipse.

[0018] Optionally, in some embodiments of the present application, the sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel and a third sub-pixel, the cross-sectional shape of the first sub-pixel on the display plane is a shape including an outer convex arc line, the cross-sectional shape of the second sub-pixel or the third sub-pixel on the display plane is a polygon including an inner concave arc line and a straight line, and the cross-sectional shape of the third sub-pixel or the second sub-pixel on the display plane is a polygon including an inner concave arc line and an outer convex arc line, wherein the inner concave arc line of the second sub-pixel or the third sub-pixel is arranged corresponding to the outer convex arc line of the first sub-pixel, and in a pair of correspondingly arranged inner concave arc lines and outer convex arc lines, the concave direction of the inner concave arc line is the same as the convex direction of the outer convex arc line.

[0019] Optionally, in some embodiments of the present application, the sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel and a third sub-pixel, the cross-sectional shape of the first sub-pixel on the display plane is a shape including an outer convex arc line, and the cross-sectional shapes of the second sub-pixel and the third sub-pixel on the display plane are polygons including inner concave arc lines and straight lines, wherein the inner concave arc lines of the second sub-pixel and the third sub-pixel are arranged corresponding to the outer convex arc lines of the first sub-pixel, and in a pair of correspondingly arranged inner concave arc lines and outer convex arc lines, the concave direction of the inner concave arc line is the same as the convex direction of the outer convex arc line.

[0020] Optionally, in some embodiments of the present application, the sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel and a third sub-pixel, the cross-sectional shape of the first sub-pixel on the display plane is a shape including an outer convex arc line, and the cross-sectional shapes of the second sub-pixel and the third sub-pixel on the display plane are polygons including an inner concave arc line and an outer convex arc line, wherein the inner concave arc line of the second sub-pixel and the third sub-pixel is arranged corresponding to the outer convex arc line of the first sub-pixel, and in a pair of correspondingly arranged inner concave arc lines and outer convex arc lines, the concave direction of the inner concave arc line is the same as the convex direction of the outer convex arc line.

[0021] Optionally, in some embodiments of the present application, the cross-sectional shape of the first sub-pixel on the display plane is circular or elliptical.

[0022] Optionally, in some embodiments of the present application, through holes are provided on grid lines of the grid electrode corresponding to straight lines on the second sub-pixel or the third sub-pixel; through holes are provided on grid lines of the grid electrode corresponding to convex arc lines on the third sub-pixel or the second sub-pixel.

[0023] Optionally, in some embodiments of the present application, through holes are provided on grid lines of the grid electrode corresponding to straight lines on the second sub-pixel and the third sub-pixel.

[0024] Optionally, in some embodiments of the present application, through holes are provided on the grid lines of the grid electrode corresponding to the convex arc lines on the second sub-pixel and the third sub-pixel.

[0025] Correspondingly, the present application also provides a touch display device, which includes the touch display panel as described above.

[0026] The present application provides a touch display panel, wherein the touch display panel comprises: a display light-emitting layer, wherein the display light-emitting layer comprises a plurality of sub-pixel units arranged at intervals, wherein the sub-pixel unit comprises at least one sub-pixel; a grid electrode, wherein the grid electrode is arranged on a side of the display light-emitting layer from which light is emitted, and the grid of the grid electrode is arranged around the sub-pixel unit; wherein the difference in the shortest distance between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane is greater than or equal to 0 micrometers and less than or equal to 1 micrometer, and the difference in the shortest distance between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane is greater than or equal to 0 micrometers and less than or equal to 1 micrometer. The present application solves the problem of large color deviation of the display panel at a side viewing angle by making the difference between the shortest distances between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane greater than or equal to 0 micrometer and less than or equal to 1 micrometer, and the difference between the shortest distances between points on the outer contour of different sub-pixel units and the grid of the grid electrode on the display plane greater than or equal to 0 micrometer and less than or equal to 1 micrometer, that is, the shortest distances between any point on the outer contour of any two sub-pixel units and the grid of the grid electrode on the display plane are close to or even equal. Therefore, the brightness displayed by each sub-pixel at a side viewing angle is relatively uniform, especially the brightness displayed by sub-pixels of different colors at a side viewing angle is relatively uniform, thereby solving the problem of large color deviation of the display panel at a side viewing angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 is a schematic diagram of a first embodiment of a touch display panel provided by the present application;

[0029] Figure 2 for Figure 1 Sectional view of section AA;

[0030] Figure 3 A schematic diagram of a grid electrode of a first embodiment of a touch display panel provided in the present application;

[0031] Figure 4 A brightness comparison diagram of a touch display panel and its sub-pixels in a side view direction in the prior art;

[0032] Figure 5 A brightness comparison diagram of the touch display panel of the present application and its sub-pixels in a side view direction;

[0033] Figure 6 is a schematic diagram of a second embodiment of a touch display panel provided by the present application

[0034] Figure 7 is a schematic diagram of a first embodiment of a sub-pixel unit of a touch display panel provided by the present application;

[0035] Figure 8 is a schematic diagram of a second embodiment of a sub-pixel unit of a touch display panel provided by the present application;

[0036] Fig. 9 is a schematic diagram of a third embodiment of a touch display panel provided by the present application;

[0037] Fig.10 is a schematic diagram of a fourth embodiment of a touch display panel provided by the present application;

[0038] Fig.11 is a schematic diagram of a fifth embodiment of a touch display panel provided in the present application. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0041] In this application, the word "exemplary" is used to mean "used as an example, illustration or description". Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any technician in the field to implement and use the present application, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the present application obscure. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application. Unless otherwise specified, the parallel or perpendicular in orientation involved in the present application is not parallel or perpendicular in the strict sense, as long as the corresponding structure can achieve the corresponding purpose.

[0042] The present application provides a touch display panel, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. The touch display panel of the present application can be used in both liquid crystal display devices and OLED display devices.

[0043] See also Figures 1 to 3 , Figure 1 is a schematic diagram of a first embodiment of a touch display panel 100 provided in the present application, Figure 2 for Figure 1 The cross-sectional view of section AA in the figure, Figure 3 A schematic diagram of a grid electrode 20 of a first embodiment of a touch display panel 100 provided in the present application. The present application provides a touch display panel 100, which includes: an array substrate, a display light-emitting layer 10 and a grid electrode 20;

[0044] Among them, the display light-emitting layer 10 is arranged on the array substrate, and the display light-emitting layer 10 includes a plurality of sub-pixel units 11 arranged at intervals, and the sub-pixel unit 11 includes at least one sub-pixel 110; the grid electrode 20 is arranged on the side of the display light-emitting layer 10 where light emerges, and the grid 21 of the grid electrode 20 is arranged around the sub-pixel unit 11.

[0045] Specifically, in this embodiment, the structure of the touch display panel 100 provided in this application is described in detail by taking the sub-pixel unit 11 including a sub-pixel 110 as a specific implementation. The sub-pixel 110 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113, that is, in this embodiment, the sub-pixel unit 11 includes any one of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113.

[0046] The array substrate is a thin film transistor array substrate commonly used in the prior art. When setting the array substrate, it can be set according to conventional techniques, which will not be described in detail here. In the embodiment of the present application, an organic light-emitting display is used as a specific implementation for explanation. Specifically, the display light-emitting layer 10 includes an organic light-emitting layer, and the organic light-emitting layer includes a plurality of sub-pixel units 11 arranged in an array. The grid electrode 20 is arranged on the side of the organic light-emitting layer from which light is emitted.

[0047] Specifically, the grid 21 of the grid electrode 20 corresponds to the sub-pixel unit 11 one by one, that is, each grid 21 of the grid electrode 20 is provided with a sub-pixel unit 11, and a plurality of pixel units 11 are included on the display light-emitting layer 10, and the plurality of pixel units are arranged in an array to form the display light-emitting layer 10 of the display panel. Specifically, the sub-pixel 110 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113. The area formed by each sub-pixel unit 11 is a light-emitting area, and the area formed between two adjacent sub-pixel units 11 is a non-light-emitting area. Among them, the grid electrode 20 is arranged in the non-light-emitting area formed between each sub-pixel unit 11, and after the grid electrode 20 is arranged, the sub-pixel unit 11 is located in the grid 21 of the grid electrode 20. In addition, the array arrangement of the sub-pixel unit 11 can be any one of a windmill arrangement, a tripod arrangement, a pearl arrangement, and a diamond arrangement, or any other type of array arrangement.

[0048] Among them, the difference in the shortest distance between different points on the outer contour of the sub-pixel unit 11 and the grid 21 of the grid electrode 20 on the display plane is greater than or equal to 0 microns and less than or equal to 1 micron, and the difference in the shortest distance between different points on the outer contour of the sub-pixel unit 11 and the grid 21 of the grid electrode 20 on the display plane is greater than or equal to 0 microns and less than or equal to 1 micron.

[0049] In order to solve the problem of large color deviation of the display panel when viewed from the side, the applicant analyzed many factors that may cause the display panel to have large color deviation when viewed from the side, such as experimental analysis of factors such as the thickness, material and flatness of the film layer, as well as the pixel shape, pixel distribution and direction of the polarizer. It was ultimately determined that the problem of large color deviation of the display panel when viewed from the side was caused by the uneven distance between the metal grid and the sub-pixels.

[0050] Therefore, the present application solves the problem of large color deviation of the display panel in the side viewing direction by making the difference between the shortest distances between different points on the outer contour of the sub-pixel unit 11 and the grid 21 of the grid electrode 20 on the display plane greater than or equal to 0 micrometers and less than or equal to 1 micrometer, and the difference between the shortest distances between different points on the outer contour of the sub-pixel unit 11 and the grid 21 of the grid electrode 20 on the display plane greater than or equal to 0 micrometers and less than or equal to 1 micrometer, that is, the shortest distances between any point on the outer contour of any two sub-pixel units 11 and the grid 21 of the grid electrode 20 on the display plane are close to or even equal. Therefore, the brightness displayed by each sub-pixel unit 11 in the side viewing direction is relatively uniform, especially the brightness displayed by sub-pixels of different colors in the side viewing direction is relatively uniform, thereby solving the problem of large color deviation of the display panel in the side viewing direction.

[0051] Please refer to the following table, which is a comparison table of the shortest distance between the sub-pixel unit 11 and the grid 21 of the grid electrode 20 in the prior art and the shortest distance between the sub-pixel unit 11 and the grid 21 of the grid electrode 20 in the present application, wherein H is the shortest distance between a point on the outer contour of the sub-pixel 11 and the grid 21 of the grid electrode 20 on the display plane. The sub-pixel unit 11 includes a sub-pixel 110, and the sub-pixel is any one of a red sub-pixel, a green sub-pixel, and a blue sub-pixel.

[0052] This implementation method is used as an example.

[0053] Prior art H This application's H Red sub-pixel 12.36 8.15 Green sub-pixel 8.15 8.15 Blue sub-pixel 12.36 8.15

[0054] Please refer to Figure 4 , Figure 4 The following is a comparison diagram of the brightness of the touch display panel and its sub-pixels in the side-view direction of the prior art. The touch display panel of the prior art adopts the parameter settings of the above table, that is, the shortest distance between the point on the outer contour of the red sub-pixel and the grid 21 of the grid electrode 20 on the display plane is 12.36, the shortest distance between the point on the outer contour of the green sub-pixel and the grid 21 of the grid electrode 20 on the display plane is 8.15, and the shortest distance between the point on the outer contour of the blue sub-pixel and the grid 21 of the grid electrode 20 on the display plane is 12.36. The brightness parameters of the sub-pixel unit 11 of the display panel in the side-view direction are: the brightness displayed by the red sub-pixel is 2.96%, the brightness displayed by the green sub-pixel is 6.79%, and the brightness displayed by the blue sub-pixel is 3.37%; and the average brightness displayed by the display panel in the side-view direction is 5.64%. It can be seen from this that the brightness displayed by the sub-pixel 11 of the touch display panel of the prior art in the side-view direction is not uniform enough, and there is a large color deviation.

[0055] Please refer to Figure 5 , Figure 5This is a brightness comparison diagram of the touch display panel of the present application and its sub-pixels in the side-view direction. The touch display panel of the present application adopts the parameter settings of the above table, that is, the shortest distance between the point on the outer contour of the red sub-pixel and the grid 21 of the grid electrode 20 on the display plane is 8.15, the shortest distance between the point on the outer contour of the green sub-pixel and the grid 21 of the grid electrode 20 on the display plane is 8.15, and the shortest distance between the point on the outer contour of the blue sub-pixel and the grid 21 of the grid electrode 20 on the display plane is 8.15. The brightness parameters of the sub-pixel unit 11 of the display panel in the side-view direction are: the brightness displayed by the red sub-pixel is 4.73%, the brightness displayed by the green sub-pixel is 6.79%, and the brightness displayed by the blue sub-pixel is 4.52%, and the brightness displayed by the display panel in the side-view direction is 6.14%. It can be seen from this that the brightness displayed by the sub-pixel 11 of the touch display panel of the present application in the side viewing direction is relatively uniform and the color deviation is small. In addition, the brightness displayed by the touch display panel of the present application in the side viewing direction is greater than the brightness displayed by the touch display panel of the prior art in the side viewing direction.

[0056] Wherein, the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 are respectively one of a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the colors of the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 are different colors from each other. Since the luminous efficiency of the red sub-pixel, the green sub-pixel and the blue sub-pixel is different, the luminous area of ​​the red sub-pixel, the green sub-pixel and the blue sub-pixel is also different. When the display panel adopts the setting method of the present application, that is, the shortest distance between any two points on the outer contour of each of the sub-pixel units 11 and the grid 21 of the grid electrode 20 on the display plane is equal, and the shortest distance between the points on the outer contour of different sub-pixel units 11 and the grid 21 of the grid electrode 20 on the display plane is equal; in order to ensure that the above setting method can be realized, the width of some grid lines of the grid electrode 20 will be wider, which will increase the capacitance of the capacitor formed by the grid electrode 20. Therefore, in order to solve the problem of increasing the capacitance of the capacitor formed by the grid electrode 20, in some embodiments, a through hole 221 is provided on the grid line 22 of the grid electrode 20, and the capacitance of the capacitor formed by the grid electrode 20 can be adjusted by providing the through hole 221. Specifically, the through hole 221 can be provided on the grid line 22 of the grid electrode 20 with a larger width, or the through hole 221 can be provided on all the grid lines 22 of the grid electrode 20, so as to adjust the capacitance of the capacitor formed by the grid electrode 20.

[0057] Please refer to Figure 1 and Figure 6 , Figure 6is a schematic diagram of a second embodiment of a touch display panel 100 provided in the present application, Figure 6 The sub-pixel units in the display panel are arranged in a tripod shape. After testing and analysis by the applicant, the display panel in the prior art in which the sub-pixel units are arranged in a tripod shape also has a large color deviation problem in the side view direction, because the grid lines 22 of the grid electrode 20 of the display panel in the tripod shape arrangement and the sub-pixels are unevenly spaced, especially the difference in the spacing between the grid lines 22 of the grid electrode 20 and the sub-pixels of different colors is large. In view of this, it is very necessary for the display panel in the prior art in which the sub-pixel units are arranged in a tripod shape to use the technical solution of the present application to solve the problem of large color deviation in the side view direction.

[0058] Figure 1 and Figure 6 The touch display panel 100 provided adopts the same structural setting, that is: the difference in the shortest distance between different points on the outer contour of the sub-pixel unit 11 and the grid 21 of the grid electrode 20 on the display plane is greater than or equal to 0 microns and less than or equal to 1 micron, and the difference in the shortest distance between different points on the outer contour of the sub-pixel unit 11 and the grid 21 of the grid electrode 20 on the display plane is greater than or equal to 0 microns and less than or equal to 1 micron.

[0059] Further, in some embodiments, when the ratio of the shortest distance between adjacent sub-pixel units 11 to the line width of the grid lines 22 of the grid electrode 20 located between adjacent sub-pixel units 11 is less than 10 / 3, through holes are provided on the grid lines 22 of the grid electrode 20 located between adjacent sub-pixel units 11. That is, in the present application, it is not necessarily necessary to provide through holes on all grid lines of the grid electrode. Through holes are provided only when the width of the grid lines of the grid electrode is greater than a certain degree. Specifically, through holes are provided on the grid lines of the grid electrode only when the ratio of the shortest distance between adjacent sub-pixel units to the line width of the grid lines of the grid electrode located between adjacent sub-pixel units is less than 10 / 3. This can reduce the proportion of through holes, which is beneficial to reducing costs. Figure 1 and Figure 6 It can be seen that not all grid lines of the grid electrode are provided with through holes, and only when the line width of the grid line of the grid electrode is relatively large, a through hole is provided.

[0060] Please refer to Figure 6In some embodiments, the sub-pixel unit 11 includes a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, and the center line of the two second sub-pixel units and the two third sub-pixel units located around the first sub-pixel unit constitutes a virtual isosceles trapezoid; the center of the first pixel unit is located at the intersection of the perpendicular bisector of the center line of the two second sub-pixel units around it and the perpendicular bisector of the center line of the two third sub-pixel units around it; the centers of the second sub-pixel units and the third sub-pixel units located around the first pixel unit coincide with the vertices of the virtual isosceles trapezoid respectively; wherein,

[0061] When the center line of the adjacent second sub-pixel unit and the third sub-pixel unit is located at the long base of the virtual isosceles trapezoid, a through hole 221 is provided on the grid line 22 of the grid electrode 20 located between the adjacent second sub-pixel unit and the third sub-pixel unit.

[0062] The first sub-pixel unit includes a first sub-pixel 111, the second sub-pixel unit includes a second sub-pixel 112, and the third sub-pixel unit includes a third sub-pixel 113. The first sub-pixel 111 is a green sub-pixel, the second sub-pixel 112 is a red sub-pixel, and the third sub-pixel 113 is a blue sub-pixel.

[0063] In the pixel arrangement structure of the tripod arrangement, the spacing between sub-pixel units is not uniform, and the spacing between different sub-pixel units is relatively different. Correspondingly, the line width of the grid line of the grid electrode is relatively large. Therefore, in order to improve the problem of the large line width of the grid line of the grid electrode, the grid line of the grid electrode is opened. Specifically, since the spacing between the adjacent second sub-pixel unit and the third sub-pixel unit located at the two end points of the long bottom side of the virtual isosceles trapezoid is relatively large, a through hole 221 is provided on the grid line 22 of the grid electrode 20 between the second sub-pixel unit and the third sub-pixel unit located at the two end points of the long bottom side of the virtual isosceles trapezoid, so as to adjust the capacitance value of the capacitor formed by the grid electrode 20.

[0064] Further, when the center line connecting the adjacent second sub-pixel unit and the third sub-pixel unit is located at the waist of the virtual isosceles trapezoid, the grid line 22 of the grid electrode 20 located between the adjacent second sub-pixel unit and the third sub-pixel unit is provided with a through hole 221. Since the waist of the virtual isosceles trapezoid is also relatively long, the grid line 22 of the grid electrode 20 between the second sub-pixel unit and the third sub-pixel unit located at both ends of the waist of the virtual isosceles trapezoid is provided with a through hole 221, so as to adjust the capacitance value of the capacitor formed by the grid electrode 20.

[0065] Furthermore, in some embodiments, the inner contour shape of the cross section of the grid 21 of the grid electrode 20 on the display plane is the same as the cross section shape of the sub-pixel unit 11 located in the grid 21 of the grid electrode 20 on the display plane. In this way, it can be ensured that the shortest distance between any two points on the outer contour of each sub-pixel unit 11 and the grid 21 of the grid electrode 20 on the display plane is equal.

[0066] In some embodiments of the present application, the sub-pixel 110 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113, that is, the sub-pixel unit 11 includes any one of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113, and the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 have the same cross-sectional shape on the display plane. Specifically, the cross-sectional shape of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 on the display plane is square, circular, or elliptical. Please refer to Figure 1 and Figure 2 ,from Figure 1 and Figure 2 It can be seen that the cross-sections of the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 on the display plane are square in shape. The inner contour of the cross-section of the grid 21 of the grid electrode 20 on the display plane is also square in shape.

[0067] When the cross-sectional shapes of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 on the display plane are the same, it is beneficial to improve the manufacturing efficiency of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113. However, there is no complementarity between the shapes of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113. In this case, the width of the grid lines 22 of the grid electrode 20 will be larger, so it is necessary to provide through holes 221 on all the grid lines 22 of the grid electrode 20, so as to adjust the capacitance of the capacitor formed by the grid electrode 20.

[0068] Please refer to Figure 7 and Figure 8 , Figure 7 is a schematic diagram of a first embodiment of a sub-pixel unit of a touch display panel 100 provided in the present application, Figure 81 is a schematic diagram of a second embodiment of a sub-pixel unit of a touch display panel 100 provided in the present application. In some embodiments, the sub-pixel unit 11 includes at least two sub-pixels, and the outer contour of each of the at least two sub-pixels is expanded outward at equal intervals to form a virtual contour, and there is an intersection between the virtual contours of any two of the at least two sub-pixels, and the outer contour of the sub-pixel unit 11 is an outer contour formed by the union of the virtual contours of the at least two sub-pixels.

[0069] When the sub-pixel unit 11 includes multiple sub-pixels, the outer contour of the sub-pixel unit 11 is an outer contour formed by the union of the virtual contours of the at least two sub-pixels. This can also make the brightness displayed by each sub-pixel unit 11 more uniform in the side viewing direction, especially the brightness displayed by sub-pixels of different colors in the side viewing direction is more uniform, thereby solving the problem of large color deviation of the display panel in the side viewing direction.

[0070] It should be noted that in other embodiments of the present application, Figure 1 In the embodiment and Figure 7 or Figure 8 The embodiment is combined in a manner that some grid lines surround a single sub-pixel and some grid lines surround multiple sub-pixels, and are distributed in a certain regularity so that the entire display panel as a whole exhibits uniformity, taking into account both optical performance and electrical requirements of touch click.

[0071] Specifically, please refer to Figure 7 ,exist Figure 7 In the embodiment, the sub-pixel unit 11 includes two sub-pixels 110, which are respectively a first sub-pixel 111 and a second sub-pixel 112. The outer contour of each of the two sub-pixels 110 is expanded outward at equal intervals to form a virtual contour 120. There is an intersection between the virtual contours 120 of the two sub-pixels 110. The outer contour of the sub-pixel unit 11 is an outer contour formed by the union of the virtual contours 120 of the two sub-pixels. The colors of the first sub-pixel 111 and the second sub-pixel 112 may be the same or different.

[0072] Please refer to Figure 8 ,exist Figure 8In the embodiment, the sub-pixel unit 11 includes three sub-pixels 110, which are respectively a first sub-pixel 111, a second sub-pixel 112 and a third sub-pixel 113. The outer contour of each of the three sub-pixels 110 is expanded outward at equal intervals to form a virtual contour 120. There is an intersection between the virtual contours 120 of any two of the three sub-pixels 110. The outer contour of the sub-pixel unit 11 is an outer contour formed by the union of the virtual contours 120 of the three sub-pixels 110. The colors of the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 may be the same or different, or the colors of any two of the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113 may be different.

[0073] Please refer to Fig. 9 , Fig. 9 1 is a schematic diagram of a third embodiment of a touch display panel 100 provided in the present application. The sub-pixel 110 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113, that is, the sub-pixel unit 11 includes any one of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113, and the cross-sectional shapes of the first sub-pixel 111, the second sub-pixel 112, and the third sub-pixel 113 on the display plane are different from each other.

[0074] Specifically, in this embodiment, the cross-sectional shape of the first sub-pixel 111 on the display plane is a shape including an outer convex arc line 101, the cross-sectional shape of the second sub-pixel 112 or the third sub-pixel 113 on the display plane is a polygon including an inner concave arc line 102 and a straight line 103, and the cross-sectional shape of the third sub-pixel 113 or the second sub-pixel 112 on the display plane is a polygon including an inner concave arc line 102 and an outer convex arc line 101, wherein the inner concave arc line 102 of the second sub-pixel 112 or the third sub-pixel 113 is arranged corresponding to the outer convex arc line 101 of the first sub-pixel 111, and in a pair of correspondingly arranged inner concave arc lines 102 and outer convex arc lines 101, the inner concave direction of the inner concave arc line 102 is the same as the outer convex direction of the outer convex arc line 101.

[0075] Specifically, the cross-sectional shape of the second sub-pixel 112 on the display plane is a polygon including an inward concave arc line 102 and a straight line 103 , and the cross-sectional shape of the third sub-pixel 113 on the display plane is a polygon including an inward concave arc line 102 and an outward convex arc line 101 .

[0076] That is, the present application utilizes the concave arc line 102 of the second sub-pixel 112 or the third sub-pixel 113 to correspond to the convex arc line 101 of the first sub-pixel 111, so as to reduce the distance between the first sub-pixel 111 and the second sub-pixel 112 and the distance between the first sub-pixel 111 and the third sub-pixel 113, thereby reducing the redundant space and improving the aperture ratio of the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113.

[0077] Among them, since the inner contour shape of the cross section of the grid 21 of the grid electrode 20 on the display plane is the same as the cross-sectional shape of the sub-pixel unit 11 located in the grid 21 of the grid electrode 20 on the display plane, when the cross-sectional shape of the third sub-pixel 113 on the display plane adopts a shape composed of an inner concave arc line 102 and an outer convex arc line 101, correspondingly, the grid line 22 of the grid electrode 20 corresponding to the outer convex arc line 101 of the third sub-pixel 113 is an outer convex arc line, which can reduce the width of the grid line 22 of the grid electrode 20 and reduce the capacitance of the capacitor formed by the grid electrode 20.

[0078] Specifically, in some embodiments, a through hole 221 is provided on the grid line 22 of the grid 21 of the grid electrode 20 corresponding to the straight line 103 on the second sub-pixel 112 or the third sub-pixel 113. The grid line 22 corresponding to the straight line 103 is thicker, and the capacitance of the capacitor formed by the grid electrode 20 can be adjusted by providing the through hole 221, thereby solving the problem of increased capacitance of the capacitor formed by the grid electrode 20.

[0079] Specifically, in some embodiments, a through hole 221 is provided on the grid line 22 of the grid 21 of the grid electrode 20 and corresponding to the convex arc line 101 on the third sub-pixel 113 or the second sub-pixel 112. Although the convex arc line 101 can reduce the width of the grid line 22 of the grid electrode 20, in order to further reduce the capacitance of the capacitor formed by the grid electrode 20, a through hole 221 can also be provided on the grid line 22 corresponding to the convex arc line 101.

[0080] Specifically, the cross-sectional shape of the first sub-pixel 111 on the display plane is circular or elliptical.

[0081] Correspondingly, in some embodiments, four first sub-pixels 111 are arranged at equal arcs around each of the second sub-pixels 112 in a circumferential direction, and the cross-sectional shape of the second sub-pixel 112 on the display plane is an octagon including four concave arcs 102 and four straight lines 103 .

[0082] Correspondingly, in some embodiments, four first sub-pixels 111 are arranged with equal arcs around each of the third sub-pixels 113 in a circumferential direction, and the cross-sectional shape of the third sub-pixel 113 on the display plane is an octagon including four concave arcs 102 and four convex arcs 101.

[0083] Please refer to Fig.10 , Fig.10 is a schematic diagram of a fourth embodiment of a touch display panel 100 provided in the present application. Fig. 9 The provided touch display panel 100 is different in that: the cross-sectional shape of the first sub-pixel 111 on the display plane is a shape including an outer convex arc line 101, and the cross-sectional shape of the second sub-pixel 112 and the third sub-pixel 113 on the display plane is a polygon including an inner concave arc line 102 and a straight line 103, wherein the inner concave arc line 102 of the second sub-pixel 112 and the third sub-pixel 113 is arranged corresponding to the outer convex arc line 101 of the first sub-pixel 111, and in a pair of correspondingly arranged inner concave arc lines 102 and outer convex arc lines 101, the inner concave direction of the inner concave arc line 102 is the same as the outer convex direction of the outer convex arc line 101.

[0084] The present application utilizes the one-to-one correspondence between the concave arc line 102 and the convex arc line 101, and in a pair of correspondingly arranged concave arc lines 102 and convex arc lines 101, the concave direction of the concave arc line 102 is the same as the convex direction of the convex arc line 101, thereby narrowing the distance between the first sub-pixel 111 and the second sub-pixel 112 and the distance between the first sub-pixel 111 and the third sub-pixel 113, reducing excess space, and improving the aperture ratio of the first sub-pixel 111, the second sub-pixel 112 and the third sub-pixel 113.

[0085] Specifically, in some embodiments, a through hole 221 is provided on the grid line 22 of the grid 21 of the grid electrode 20 corresponding to the straight line 103 on the second sub-pixel 112 and the third sub-pixel 113. The grid line 22 corresponding to the straight line 103 is thicker, and the capacitance of the capacitor formed by the grid electrode 20 can be adjusted by providing the through hole 221, thereby solving the problem of increased capacitance of the capacitor formed by the grid electrode 20.

[0086] Specifically, the cross-sectional shape of the first sub-pixel 111 on the display plane is circular or elliptical. Correspondingly, in some embodiments, four first sub-pixels 111 are arranged around each of the second sub-pixel 112 and the third sub-pixel 113 in a circumferential direction with equal arcs, and the cross-sectional shape of the second sub-pixel 112 and the third sub-pixel 113 on the display plane is an octagon including four concave arcs 102 and four straight lines 103.

[0087] Please refer to Fig.11 , Fig.11 is a schematic diagram of a fifth embodiment of the touch display panel 100 provided in the present application. Fig. 9 The provided touch display panel 100 is different in that: the cross-sectional shape of the first sub-pixel 111 on the display plane is a shape including an outer convex arc line 101, and the cross-sectional shapes of the second sub-pixel 112 and the third sub-pixel 113 on the display plane are polygons including a concave arc line 102 and an outer convex arc line 101, wherein the inner concave arc line 102 of the second sub-pixel 112 and the third sub-pixel 113 is arranged corresponding to the outer convex arc line 101 of the first sub-pixel 111, and in a pair of correspondingly arranged inner concave arc lines 102 and outer convex arc lines 101, the inner concave direction of the inner concave arc line 102 is the same as the outer convex direction of the outer convex arc line 101.

[0088] Since the inner contour shape of the cross section of the grid 21 of the grid electrode 20 on the display plane is the same as the cross-sectional shape of the sub-pixel unit 11 located in the grid 21 of the grid electrode 20 on the display plane, when the cross-sectional shape of the second sub-pixel 112 and the third sub-pixel 113 on the display plane adopts a shape composed of an inner concave arc line 102 and an outer convex arc line 101, correspondingly, the grid line 22 of the grid electrode 20 corresponding to the outer convex arc line 101 of the second sub-pixel 112 and the third sub-pixel 113 is a concave arc line, which can further reduce the width of the grid line 22 of the grid electrode 20 and further reduce the capacitance of the capacitor formed by the grid electrode 20.

[0089] Specifically, in some embodiments, a through hole 221 is provided on the grid line 22 of the grid 21 of the grid electrode 20 corresponding to the convex arc line 101 on the second sub-pixel 112 and the third sub-pixel 113. The grid line 22 corresponding to the convex arc line 101 on the second sub-pixel 112 and the third sub-pixel 113 is thicker, and the capacitance of the capacitor formed by the grid electrode 20 can be adjusted by providing the through hole 221, thereby solving the problem of increased capacitance of the capacitor formed by the grid electrode 20.

[0090] Specifically, the cross-sectional shape of the first sub-pixel 111 on the display plane is circular or elliptical. Correspondingly, in some embodiments, four first sub-pixels 111 are arranged around each third sub-pixel 113 with equal arcs along a circumferential direction, and the cross-sectional shape of the third sub-pixel 113 on the display plane is an octagon including four inward concave arcs 102 and four outward convex arcs 101.

[0091] The present application also provides a touch display device, which includes the touch display panel 100 as described above.

[0092] The principle of solving the problem by the touch display device is similar to that of the aforementioned touch display panel 100 , so the implementation and beneficial effects of the touch display device can refer to the description of the aforementioned touch display panel 100 , and the repeated parts will not be repeated here.

[0093] The above is a detailed introduction to a touch display panel provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A touch display panel, characterized in that: include: A display light-emitting layer, the display light-emitting layer comprising a plurality of sub-pixel units arranged at intervals, and the sub-pixel unit comprises at least one sub-pixel; A grid electrode, wherein the grid electrode is arranged on the side of the display light emitting layer from which light is emitted, and the grid of the grid electrode is arranged around the sub-pixel unit; wherein, The difference in the shortest distance between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane is greater than or equal to 0 micrometer and less than or equal to 1 micrometer, and the difference in the shortest distance between different points on the outer contour of the sub-pixel unit and the grid of the grid electrode on the display plane is greater than or equal to 0 micrometer and less than or equal to 1 micrometer; The sub-pixel unit includes a first sub-pixel unit, a second sub-pixel unit and a third sub-pixel unit, and the center line of the two second sub-pixel units and the two third sub-pixel units located around the first sub-pixel unit forms a virtual isosceles trapezoid; the center of the first pixel unit is located at the intersection of the perpendicular bisector of the center line of the two second sub-pixel units around it and the perpendicular bisector of the center line of the two third sub-pixel units around it; the centers of the second sub-pixel units and the third sub-pixel units located around the first pixel unit coincide with the vertices of the virtual isosceles trapezoid respectively; wherein, When the center line connecting the adjacent second sub-pixel units and the third sub-pixel units is located at the long bottom side of the virtual isosceles trapezoid, a through hole is provided on the grid line of the grid electrode located between the adjacent second sub-pixel units and the third sub-pixel units.

2. The touch display panel according to claim 1, characterized in that: When the ratio of the shortest distance between adjacent sub-pixel units to the line width of the grid lines of the grid electrode located between adjacent sub-pixel units is less than 10 / 3, through holes are provided on the grid lines of the grid electrode located between adjacent sub-pixel units.

3. The touch display panel according to claim 1, characterized in that: When the center line connecting the adjacent second sub-pixel units and the third sub-pixel units is located at the waist of the virtual isosceles trapezoid, a through hole is provided on the grid line of the grid electrode located between the adjacent second sub-pixel units and the third sub-pixel units.

4. The touch display panel according to claim 1, characterized in that: The sub-pixel unit includes at least two sub-pixels, the outer contour of each of the at least two sub-pixels is expanded outward at equal intervals to form a virtual contour, there is an intersection between the virtual contours of any two of the at least two sub-pixels, and the outer contour of the sub-pixel unit is an outer contour formed by the union of the virtual contours of the at least two sub-pixels.

5. The touch display panel according to claim 1, characterized in that: The inner contour shape of the cross section of the grid of the grid electrode on the display plane is the same as the cross section shape of the sub-pixel located in the grid of the grid electrode on the display plane.

6. The touch display panel according to claim 1, characterized in that: The sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the first sub-pixel, the second sub-pixel, and the third sub-pixel have the same cross-sectional shape on a display plane.

7. The touch display panel according to claim 6, characterized in that: The cross-sections of the first sub-pixel, the second sub-pixel and the third sub-pixel on the display plane are in a square, a circle or an ellipse.

8. The touch display panel according to claim 1, characterized in that: The sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel and a third sub-pixel, the cross-sectional shape of the first sub-pixel on a display plane is a shape including an outer convex arc line, the cross-sectional shape of one of the second sub-pixel and the third sub-pixel on a display plane is a polygon including an inner concave arc line and a straight line, and the cross-sectional shape of the other of the second sub-pixel and the third sub-pixel on a display plane is a polygon including an inner concave arc line and an outer convex arc line, wherein the inner concave arc line of one of the second sub-pixel and the third sub-pixel is arranged correspondingly to the outer convex arc line of the first sub-pixel, and in a pair of correspondingly arranged inner concave arc lines and outer convex arc lines, the inner concave direction of the inner concave arc line is the same as the outer convex direction of the outer convex arc line.

9. The touch display panel according to claim 1, characterized in that: The sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel and a third sub-pixel, the cross-sectional shape of the first sub-pixel on the display plane is a shape including an outer convex arc line, and the cross-sectional shapes of the second sub-pixel and the third sub-pixel on the display plane are polygons including an inner concave arc line and a straight line, wherein the inner concave arc lines of the second sub-pixel and the third sub-pixel are arranged correspondingly to the outer convex arc line of the first sub-pixel, and in a pair of correspondingly arranged inner concave arc lines and outer convex arc lines, the inner concave direction of the inner concave arc line is the same as the outer convex direction of the outer convex arc line.

10. The touch display panel according to claim 1, characterized in that: The sub-pixel unit includes any one of a first sub-pixel, a second sub-pixel and a third sub-pixel, the cross-sectional shape of the first sub-pixel on the display plane is a shape including an outer convex arc line, and the cross-sectional shapes of the second sub-pixel and the third sub-pixel on the display plane are polygons including an inner concave arc line and an outer convex arc line, wherein the inner concave arc lines of the second sub-pixel and the third sub-pixel are arranged correspondingly to the outer convex arc line of the first sub-pixel, and in a pair of correspondingly arranged inner concave arc lines and outer convex arc lines, the inner concave direction of the inner concave arc line is the same as the outer convex direction of the outer convex arc line.

11. The touch display panel according to any one of claims 8 to 10, characterized in that: The cross-sectional shape of the first sub-pixel on the display plane is circular or elliptical.

12. The touch display panel according to claim 8, characterized in that: A through hole is provided on a grid line of the grid electrode corresponding to a straight line on one of the second sub-pixel and the third sub-pixel; a through hole is provided on a grid line of the grid electrode corresponding to an outer convex arc line on the other of the second sub-pixel and the third sub-pixel.

13. The touch display panel according to claim 9, characterized in that: Through holes are provided on the grid lines of the grid electrode corresponding to the straight lines on the second sub-pixel and the third sub-pixel.

14. The touch display panel according to claim 10, characterized in that: Through holes are arranged on the grid lines of the grid electrode corresponding to the outer convex arc lines on the second sub-pixel and the third sub-pixel.

Images