Driving backboard, display panel and display device

Abstract

The invention discloses a driving backboard, a display panel and a display device. The driving backboard comprises a substrate; the first contact electrode area and the second contact electrode area are alternately arranged on the substrate in the first direction; wherein the first contact electrode area and the second contact electrode area respectively comprise at least one contact electrode group, and a first polarity electrode and a second polarity electrode of the contact electrode group are arranged along the first direction; the first polarity electrode of the contact electrode group of one second contact electrode area is close to the first polarity electrode of the contact electrode group of one adjacent first contact electrode area, and the second polarity electrode is close to the second polarity electrode of the contact electrode group of the other adjacent second contact electrode area; in this way, the current flow directions of the diodes of the adjacent first contact electrode areas and second contact electrode areas are opposite, polarity complementation in the first direction is formed, potential difference interference in the first direction is offset, brightness changes of adjacent rows tend to be synchronous, and low-gray-scale vertical flicker lines are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a driving backboard, a display panel and a display device. BACKGROUND

[0002] At present, with the rapid development of Mini / Micro LED display technology, LED display screens are iterating towards high resolution, high contrast and low power consumption. As a core component of the display screen, the electrode layout design of the driving backboard directly affects the display effect and product competitiveness.

[0003] In the related art, the electrode layout of the driving backboard generally adopts a pixel electrode same direction arrangement mode, that is, the electrode polarity direction of all pixels on the driving backboard remains the same, such as all pixel diodes are arranged in an upper positive and lower negative vertical polarity or in a left positive and right negative horizontal polarity, and the R / G / B three-color electrodes in a single pixel synchronously follow the same direction rule to realize current transmission and signal control through unified circuit traces.

[0004] In the process of use, it is found that due to the same direction arrangement of all pixel electrodes, the current flow directions of adjacent rows of the driving backboard are completely consistent, which causes the potential difference interference between the rows to be unable to be offset. In a low gray scale display scene, the slight potential difference will be significantly amplified, causing the conduction efficiency and brightness of adjacent row LEDs to appear periodic differences, forming an alternating boundary of "bright row-dark row", which seriously affects the visual comfort. SUMMARY

[0005] Embodiments of the present application provide a driving backboard, a display panel and a display device to at least partially solve the above technical problems.

[0006] In order to achieve the above purpose, according to a first aspect of the present application, a driving backboard is provided, comprising: a substrate; and a first touch electrode region and a second touch electrode region are alternately arranged on the substrate along a first direction; wherein the first touch electrode region and the second touch electrode region respectively comprise at least one touch electrode group, and the first polarity electrode and the second polarity electrode of the touch electrode group are arranged along the first direction; the first polarity electrode of a touch electrode group of one second touch electrode region is close to the first polarity electrode of a touch electrode group of one adjacent first touch electrode region, and the second polarity electrode is close to the second polarity electrode of a touch electrode group of another adjacent second touch electrode region.

[0007] Optionally, the first contact electrode region and the second contact electrode region each include three contact electrode groups arranged along the second direction, the first polarity electrode and the second polarity electrode of the three contact electrode groups in the first contact electrode region are arranged in the same direction along the first direction, and the first polarity electrode and the second polarity electrode of the three contact electrode groups in the second contact electrode region are arranged in the same direction along the first direction. The first polarity electrode of the three electrode groups in one second electrode region is close to the first polarity electrode of the three electrode groups in an adjacent first electrode region, and the second polarity electrode is close to the second polarity electrode of the three electrode groups in another adjacent first electrode region, wherein the second direction is different from the first direction.

[0008] Optionally, a through hole is formed between one of the second contact electrode areas and an adjacent first contact electrode area. The drive back plate includes a first independent electrode line and a second independent electrode line passing through the through hole. The first independent electrode line is connected to a first polarity electrode of a contact electrode group in the first contact electrode area, and the second independent electrode line is connected to a first polarity electrode of a contact electrode group in the second contact electrode area.

[0009] Optionally, there are multiple first contact electrode regions, the multiple first contact electrode regions are arranged along the second direction, and the first polarity electrode and the second polarity electrode of the contact electrode group of the multiple first contact electrode regions are arranged in the same direction along the first direction; The number of second contact electrode areas is multiple, and the multiple second contact electrode areas are arranged along the second direction. The first polarity electrode and the second polarity electrode of the contact electrode group of the multiple second contact electrode areas are arranged in the same direction along the first direction. The second direction is different from the first direction.

[0010] Optionally, the substrate is provided with a plurality of common electrode lines, and the second polarity electrodes of a plurality of first contact electrode regions arranged along the second direction are connected to the same common electrode line, and the second polarity electrodes of a plurality of second contact electrode regions arranged along the second direction are connected to the same common electrode line.

[0011] Optionally, the drive backplate includes a third contact electrode region alternately disposed with the first contact electrode region along a second direction. The third contact electrode region includes at least one of the contact electrode groups, wherein the first polarity electrode and the second polarity electrode of the contact electrode group of the third contact electrode region are disposed in the opposite direction to the first polarity electrode and the second polarity electrode of the contact electrode group of the first contact electrode region along the first direction, and the second direction is different from the first direction.

[0012] Optionally, the drive backplate includes a fourth contact electrode area that is alternately arranged with the second contact electrode area along the second direction, the fourth contact electrode area and the third contact electrode area being alternately arranged along the first direction, and the fourth contact electrode area including at least one of the contact electrode groups; The first polarity electrode of the third contact electrode region is close to the first polarity electrode of the contact electrode region of an adjacent fourth contact electrode region, and the second polarity electrode of the third contact electrode region is close to the second polarity electrode of the contact electrode region of another adjacent fourth contact electrode region.

[0013] Optionally, the third contact electrode region and the fourth contact electrode region each include three contact electrode groups, wherein the first polarity electrode and the second polarity electrode of the three contact electrode groups in the third contact electrode region are arranged in the same direction along the first direction, and the first polarity electrode and the second polarity electrode of the three contact electrode groups in the fourth contact electrode region are arranged in the same direction along the first direction.

[0014] According to a second aspect of this application, a display panel is provided, including the aforementioned driving backplate.

[0015] According to a third aspect of this application, a display device is also provided, including the aforementioned display panel.

[0016] In this embodiment, the first and second contact electrode areas are alternately arranged along a first direction. The first and second polarity electrodes of each contact electrode group are still arranged side by side along the first direction. The first polarity electrode of one second contact electrode area is close to the first polarity electrode of an adjacent first contact electrode area, and the second polarity electrode of the second contact electrode area is close to the second polarity electrode of another adjacent first contact electrode area. This makes the diode currents of adjacent first and second contact electrode areas flow in opposite directions, such as one flowing in the forward direction along the first direction and the other flowing in the reverse direction along the first direction, forming polarity complementarity in the first direction. This cancels out the potential difference interference in the first direction, making the brightness changes of adjacent rows tend to be synchronized and avoiding low grayscale vertical flicker lines.

[0017] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0019] Figure 1 This is a schematic diagram of the overall structure of the drive backplane provided in an exemplary embodiment of this disclosure; Figure 2 yes Figure 1 A magnified view of a portion of the drive backplane; Figure 3 This is a schematic diagram of the structure of the drive backplane provided in the second exemplary embodiment of this disclosure; Figure 4 This is a schematic diagram of the structure of the display device provided in the third exemplary embodiment of this disclosure.

[0020] Explanation of reference numerals in the attached figures: 100. Drive backplane; 10. Substrate; 11. Via; 21. First contact electrode area; 22. Second contact electrode area; 23. Third contact electrode area; 24. Fourth contact electrode area; 30. Electrode assembly; 31. First polarity electrode; 32. Second polarity electrode; 331. First independent electrode line; 332. Second independent electrode line; 34. Common electrode line; D1, First Direction; D2, Second Direction; 1000, Display device; 200, Housing. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0022] This application provides a driving backplate 100, in which a first contact electrode region 21 and a second contact electrode region 22 are alternately arranged along a first direction D1. The first polarity electrode 31 and the second polarity electrode 32 of each contact electrode group 30 are still arranged side-by-side along the first direction D1. The first polarity electrode 31 of one second contact electrode region 22 is close to the first polarity electrode 31 of an adjacent first contact electrode region 21, and the second polarity electrode 32 of the second contact electrode region 22 is close to the second polarity electrode 32 of another adjacent first contact electrode region 21. This causes the diode currents of adjacent first contact electrode regions 21 and second contact electrode regions 22 to flow in opposite directions, such as one flowing forward along the first direction D1 and the other flowing in the reverse direction D1, forming complementary polarities in the first direction D1. This cancels out potential difference interference in the first direction D1, making the brightness changes of adjacent rows tend to be synchronized and avoiding low-grayscale vertical flicker lines.

[0023] This application provides a drive backplane 100; please refer to [link / reference]. Figure 1 and Figure 2 , Figure 1 and Figure 2 These are a schematic diagram of the overall structure and a partial enlarged view of the drive backplane 100 provided in the embodiments of this application.

[0024] The drive backplate 100 includes a substrate 10 and a first contact electrode region 21 and a second contact electrode region 22 alternately disposed on the substrate 10 along a first direction D1.

[0025] The substrate 10 is the carrier of the drive backplane 100. The substrate 10 can be made of materials such as glass substrate 10, PCB substrate 10 (such as FR4 epoxy glass fiber substrate 10), flexible board (FPC) or BT board.

[0026] The first contact electrode area 21 and the second contact electrode area 22 are alternately arranged in the first direction D1. The first direction D1 can be horizontal or vertical of the display screen. In this embodiment, the first direction D1 is vertical as an example for illustrative explanation.

[0027] The first contact electrode region 21 and the second contact electrode region 22 each include at least one contact electrode group 30. Each contact electrode group 30 is provided with a first polarity electrode 31 and a second polarity electrode 32, i.e., a positive electrode and a negative electrode. When the first polarity electrode 31 is a positive electrode, the second polarity electrode 32 is a negative electrode; or, when the first polarity electrode 31 is a negative electrode, the second polarity electrode 32 is a positive electrode. The first polarity electrode 31 and the second polarity electrode 32 are arranged along a first direction D1. If the first direction D1 is vertical, the first polarity electrode 31 can be upper and the second polarity electrode 32 lower, or vice versa. The first polarity electrode 31 and the second polarity electrode 32 provide conductive connection points for the diode, and the two electrodes of the diode are electrically connected to the first polarity electrode 31 and the second polarity electrode 32, respectively.

[0028] For example, diodes are typically classified into three colors: red (R), green (G), and blue (B). Correspondingly, the contact electrode area includes three contact electrode groups 30. The two pins of each diode are respectively connected to the first polarity electrode 31 and the second polarity electrode 32 of a contact electrode group 30, and light is emitted through current conduction. When diodes are connected to each contact electrode area, they constitute the smallest display unit of a display screen—a pixel.

[0029] In addition to the contact electrode regions at both ends in the first direction D1, each first contact electrode region 21 has two adjacent second contact electrode regions 22, and each second contact electrode region 22 has two adjacent first contact electrode regions 21.

[0030] Specifically, the first polarity electrode 31 of the electrode group 30 in a second electrode region 22 is close to the first polarity electrode 31 of the electrode group 30 in an adjacent first electrode region 21. Simultaneously, the second polarity electrode 32 of the electrode group 30 in the second electrode region 22 is close to the second polarity electrode 32 of the electrode group 30 in another adjacent second electrode region 22. That is, adjacent first electrode regions 21 and second electrode regions 22 are adjacent with the same polarity, and one electrode of the electrode group 30 in one electrode region is close to the same polarity electrode of an adjacent electrode region, while the other electrode is close to the same polarity electrode of another adjacent electrode region.

[0031] By bringing the first polarity electrode 31 of the contact electrode group 30 of a second contact electrode area 22 close to the first polarity electrode 31 of the contact electrode group 30 of an adjacent first contact electrode area 21, and bringing the second polarity electrode 32 close to the second polarity electrode 32 of the contact electrode group 30 of another adjacent second contact electrode area 22, the alternately arranged first contact electrode areas 21 and second contact electrode areas 22 complement each other in polarity. This not only allows the diode current of adjacent pixels to flow in opposite directions to cancel out interference, but also ensures uniform color mixing between pixels through a horizontally symmetrical layout, ultimately achieving a stable and uniform display effect for the entire screen.

[0032] The first contact electrode region 21 and the second contact electrode region 22 are alternately arranged along the first direction D1. The first polarity electrode 31 and the second polarity electrode 32 of each contact electrode group 30 are still arranged side by side along the first direction D1. The first polarity electrode 31 of one second contact electrode region 22 is close to the first polarity electrode 31 of an adjacent first contact electrode region 21, and the second polarity electrode 32 of the second contact electrode region 22 is close to the second polarity electrode 32 of another adjacent first contact electrode region 21. This makes the diode currents of adjacent first contact electrode regions 21 and second contact electrode regions 22 flow in opposite directions, such as one flowing in the forward direction of the first direction D1 and the other flowing in the reverse direction of the first direction D1, forming polarity complementarity in the first direction D1, thereby canceling the potential difference interference in the first direction D1, making the brightness changes of adjacent rows tend to be synchronized, and avoiding low grayscale vertical flicker lines.

[0033] In addition, by forming complementary polarities in the first direction D1, the diode currents of adjacent pixels flow in opposite directions to cancel out interference, and the symmetrical layout on the first direction D1 improves the uniformity of color mixing between pixels, thereby improving the stability and uniformity of the display.

[0034] When the first direction D1 is vertical, the first contact electrode area 21 and the second contact electrode area 22 are arranged alternately in the vertical direction, and the electrodes of the same polarity in adjacent contact electrode areas are close to each other, so that the drive back plate 100 forms a completely symmetrical electrode layout and wiring structure in the horizontal direction. The transmission path and wiring impedance of the R / G / B contact electrode group 30 at any position on the left are completely consistent with the symmetrical position on the right, which effectively avoids the problem of uneven signal attenuation on one side in the traditional layout, and ensures that the RGB three-color signals are attenuated evenly when transmitted from left to right. This solves the technical problem in the prior art where the proportion of red light on the left is too high and the proportion of blue and green light on the right is too high, resulting in red on the left and cyan on the right.

[0035] In some embodiments, the first contact electrode region 21 and the second contact electrode region 22 each include three contact electrode groups 30 arranged along the second direction D2. The first polarity electrode 31 and the second polarity electrode 32 of the three contact electrode groups 30 of the first contact electrode region 21 are arranged in the same direction along the first direction D1, and the first polarity electrode 31 and the second polarity electrode 32 of the three contact electrode groups 30 of the second contact electrode region 22 are arranged in the same direction along the first direction D1.

[0036] The first polar electrode 31 of the three contact electrode groups 30 of a second contact electrode region 22 is close to the first polar electrode 31 of the three contact electrode groups 30 of an adjacent first contact electrode region 21, and the second polar electrode 32 is close to the second polar electrode 32 of the three contact electrode groups 30 of another adjacent first contact electrode region 21. The second direction D2 is different from the first direction D1.

[0037] In other words, each contact electrode area includes three contact electrode groups 30 to match the existing single-pixel RGB three-color requirements. The two electrodes of the three contact electrode groups 30 in each contact electrode area are arranged in the same direction along the first direction D1. For example, when the first direction D1 is vertical, the three contact electrode groups 30 of the first contact electrode area 21 are all positive at the top and negative at the bottom, and the three contact electrode groups 30 of the second contact electrode area 22 are all negative at the top and positive at the bottom. Alternatively, the three contact electrode groups 30 of the first contact electrode area 21 are all negative at the top and positive at the bottom, and the three contact electrode groups 30 of the second contact electrode area 22 are all positive at the top and negative at the bottom. This ensures that adjacent first contact electrode areas 21 and second contact electrode areas 22 are close to each other with the same pole.

[0038] The polarities of the three contact electrode groups 30 in the same contact electrode area are set in the same direction along the first direction D1 to ensure that the current flow direction of the three color diodes in a single pixel is consistent, realize the synchronous conduction and synchronous adjustment of the three colors, ensure uniform pixel color mixing, and avoid monochrome delay or color deviation.

[0039] To facilitate wiring when the first polarity electrode 31 is a non-public electrode, in some embodiments, a through hole 11 is provided between a second contact electrode region 22 and an adjacent first contact electrode region 21. The drive back plate 100 includes a first independent electrode line 331 and a second independent electrode line 332 passing through the through hole 11. The first independent electrode line 331 is connected to the first polarity electrode 31 of a contact electrode group 30 of the first contact electrode region 21, and the second independent electrode line 332 is connected to the first polarity electrode 31 of a contact electrode group 30 of the second contact electrode region 22.

[0040] Via 11 is formed on substrate 10. When the first polarity electrode 31 is a non-public electrode and needs to be routed separately, by forming a via 11 between the adjacent second contact electrode area 22 and the first contact electrode area 21, two independent electrode lines connected to the first polarity electrode 31 of a contact electrode group 30 of the two adjacent contact electrode areas are jointly routed through the same via 11. Compared with the method of one via 11 for one first polarity electrode 31 line in related technologies, the number of vias 11 is directly reduced by half, which greatly reduces the processing cost and material waste of PCB drilling process. At the same time, it reduces the space occupied by the via 11 on substrate 10, leaving more room for the orderly layout of the contact electrode group 30.

[0041] In some embodiments, there are multiple first contact electrode regions 21, and the multiple first contact electrode regions 21 are arranged along the second direction D2. The first polarity electrode 31 and the second polarity electrode 32 of the contact electrode group 30 of the multiple first contact electrode regions 21 are arranged in the same direction along the first direction D1.

[0042] When the first direction D1 is vertical, the electrode groups 30 of the multiple first electrode areas 21 can be set in a positive-bottom-negative or negative-bottom-positive manner, that is, the first polarity electrode 31 and the second polarity electrode 32 of the electrode groups 30 of the multiple first electrode areas 21 are arranged in the same direction along the first direction D1.

[0043] There are multiple second contact electrode regions 22, and the multiple second contact electrode regions 22 are arranged along the second direction D2. The first polarity electrode 31 and the second polarity electrode 32 of the contact electrode group 30 of the multiple second contact electrode regions 22 are arranged in the same direction along the first direction D1, wherein the second direction D2 is different from the first direction D1.

[0044] Similarly, when the first direction D1 is vertical, the electrode groups 30 of the multiple second electrode areas 22 can be set in a positive-lower or negative-lower configuration, that is, the first polarity electrode 31 and the second polarity electrode 32 of the electrode groups 30 of the multiple second electrode areas 22 are arranged in the same direction along the first direction D1.

[0045] However, the electrode arrangement of the second contact electrode region 22 also needs to be coordinated with the electrode arrangement of the first contact electrode region 21 so that the same poles of the adjacent first contact electrode region 21 and second contact electrode region 22 can be close together.

[0046] For example, the illustration shows the first direction D1 as the vertical direction and the second direction D2 as the horizontal direction. It can be understood that in other embodiments, the first direction D1 can also be the horizontal direction and the second direction D2 can be the vertical direction, or the first direction D1 and the second direction D2 can be set at a certain angle.

[0047] Multiple first contact electrode areas 21 and multiple second contact electrode areas 22 are arranged side by side along the second direction D2, and the polarity of all contact electrode groups 30 within the multiple first contact electrode areas 21 or multiple second contact electrode areas 22 is set in the same direction along the first direction D1, forming a horizontally regular electrode array. This ensures that the trace impedance and signal transmission path of the RGB three-color contact electrode groups 30 at each horizontal position in the second direction D2 of the screen are basically consistent, which to a certain extent solves the "left red, right cyan" color shift problem caused by horizontal impedance differences in related technologies. At the same time, the unified polarity design of the horizontal array ensures that the brightness of the entire row of pixels changes synchronously, further eliminating low grayscale vertical flicker lines and improving the uniformity of the whole screen display.

[0048] In some embodiments, a plurality of common electrode lines 34 are provided on the substrate 10, and the second polarity electrodes 32 of a plurality of first contact electrode regions 21 provided along the second direction D2 are connected to the same common electrode line 34, and the second polarity electrodes 32 of a plurality of second contact electrode regions 22 provided along the second direction D2 are connected to the same common electrode line 34.

[0049] For example, two common electrode lines 34 are provided between the first contact electrode region 21 and the second contact electrode region 22 near the second polar electrode 32. In this way, the second polar electrode 32 of the first contact electrode region 21 arranged along the second direction D2 is connected to one common electrode line 34, and the second polar electrodes 32 of the plurality of second contact electrode regions 22 arranged along the second direction D2 are connected to another common electrode line 34.

[0050] In other words, when the second polarity electrode 32 is a public electrode, the multiple first contact electrode regions 21 arranged in parallel along the second direction D2 share a common electrode line 34, and the multiple second contact electrode regions 22 arranged in parallel along the second direction D2 share another common electrode line 34. Moreover, the common electrode line 34 is directly routed on the surface of the lamp board, thereby avoiding the operation of arranging the inner layer common electrode line 34 separately for different contact electrode regions. In high-density scenarios with pixel pitch ≤1.25mm, there is no need to increase the number of PCB board layers, which greatly reduces the material and process costs of substrate 10 manufacturing, while optimizing the surface space utilization of substrate 10.

[0051] In addition, the first contact electrode area 21 or the second contact electrode area 22 along the second direction D2 share a common electrode line 34, ensuring that the potential of the second polarity electrode 32 of all pixels in the same area is completely consistent, completely eliminating the problem of uneven brightness in the area caused by the common electrode potential difference, further ensuring the symmetry of RGB signal transmission on the second direction D2, and to a certain extent eliminating the risk of color deviation of "left red and right cyan"; at the same time, the unified common electrode potential of the partition can effectively cancel the inter-line potential interference, help eliminate the vertical flickering lines of low grayscale, and improve the stability of the full screen display.

[0052] The common electrode may be either positive or negative, and similarly, the non-common electrode may be either positive or negative, depending on the specific requirements.

[0053] In some embodiments, the polarity arrangement of the contact electrode regions on the second direction D2 can also be different, specifically, such as Figure 3 As shown, the drive backplate 100 includes a third contact electrode region 23 that is alternately arranged with the first contact electrode region 21 along the second direction D2. The third contact electrode region 23 includes at least one contact electrode group 30, wherein the first polarity electrode 31 and the second polarity electrode 32 of the contact electrode group 30 of the third contact electrode region 23 are arranged in the opposite direction to the first polarity electrode 31 and the second polarity electrode 32 of the contact electrode group 30 of the first contact electrode region 21 along the first direction D1.

[0054] Reverse setting refers to the polarity arrangement of the contact electrode group 30 in the first contact electrode area 21 being opposite to the polarity arrangement of the contact electrodes in the third contact electrode area 23. For example, if the first direction D1 is the vertical direction, the contact electrode group 30 in the first contact electrode area 21 is positive at the top and negative at the bottom, then the contact electrode group 30 in the third contact electrode area 23 is negative at the top and positive at the bottom. It can be understood that when the contact electrode group 30 in the first contact electrode area 21 is negative at the top and positive at the bottom, the contact electrode group 30 in the third contact electrode area 23 is positive at the top and negative at the bottom.

[0055] The third contact electrode area 23 is alternately arranged with the first contact electrode area 21 along the second direction D2, and the polarity of the contact electrode group 30 of the third contact electrode area 23 is opposite to that of the first contact electrode area 21 along the first direction D1. This reverses the polarity of different pixels in the same row, breaking the limitation of the same polarity of pixels in the same row in related technologies. This allows the pixel current flow to form symmetrical complementarity when the screen is viewed from any angle in large viewing angle and 360° surround display scenarios such as sky screens, avoiding uneven brightness or color deviation caused by viewing angle differences, and improving the consistency of the display effect across all viewing angles.

[0056] Meanwhile, since the first contact electrode area 21 and the third contact electrode area 23 on the second direction D2 have opposite polarities, the current flow of adjacent pixels on the second direction D2 is opposite, which can directly cancel the potential difference interference on the second direction D2, so that the flickering stripes on the second direction D2 in the low grayscale scene will be eliminated to a certain extent.

[0057] In some embodiments, the drive backplate 100 includes a fourth contact electrode region 24 that is alternately disposed with the second contact electrode region 22 along the second direction D2, and the fourth contact electrode region 24 and the third contact electrode region 23 are alternately disposed along the first direction D1. The fourth contact electrode region 24 includes at least one contact electrode group 30.

[0058] Among them, the first polar electrode 31 of the contact electrode group 30 in the third contact electrode region 23 is close to the first polar electrode 31 of the contact electrode group 30 in an adjacent fourth contact electrode region 24, and the second polar electrode 32 of the contact electrode group 30 in the third contact electrode region 23 is close to the second polar electrode 32 of the contact electrode group 30 in another adjacent fourth contact electrode region 24.

[0059] For example, when the first direction D1 is the vertical direction and the second direction D2 is the horizontal direction, the exemplary first contact electrode area 21 is positive at the top and negative at the bottom, the second contact electrode area 22 is negative at the top and positive at the bottom, the third contact electrode area 23 is negative at the top and positive at the bottom, and the fourth contact electrode area 24 is positive at the top and negative at the bottom. This constructs a bidirectional alternating array of four contact electrode areas, thereby achieving consistent 360° full-view display of the sky screen.

[0060] The fourth contact electrode area 24 is alternately arranged with the second contact electrode area 22 along the second direction D2, and alternately arranged with the third contact electrode area 23 along the first direction D1. The third contact electrode area 23 is alternately arranged with the first contact electrode area 21 along the second direction D2. With the polarity arrangement of the first contact electrode area 21, the second contact electrode area 22, the third contact electrode area 23 and the fourth contact electrode area 24, a bidirectional polarity alternating complementary electrode layout matrix is ​​formed in the first direction D1 and the second direction D2. This allows the current flow of adjacent pixels to cancel out potential difference interference regardless of whether the screen is viewed from a horizontal 360° angle, a vertical angle or any other angle. This solves the problems of uneven brightness and color cast under large viewing angles and achieves a basically consistent picture effect across all viewing angles.

[0061] In some embodiments, the third contact electrode region 23 and the fourth contact electrode region 24 each include three contact electrode groups 30. The first polarity electrode 31 and the second polarity electrode 32 of the three contact electrode groups 30 in the third contact electrode region 23 are arranged in the same direction along the first direction D1, and the first polarity electrode 31 and the second polarity electrode 32 of the three contact electrode groups 30 in the fourth contact electrode region 24 are arranged in the same direction along the first direction D1.

[0062] The three contact electrode groups 30 in the same contact electrode area are arranged in the same direction along the first direction D1 to correspond to the R / G / B three-color diodes of a single pixel. Each contact electrode group 30 is independently connected to the electrode of a color diode to ensure that the transmission path and impedance of the three-color signals in the same pixel are completely consistent, and the current is synchronously turned on / off, so as to realize the synchronous control of the three-color light.

[0063] This application also provides a display panel that includes the aforementioned driving backplane 100. This display panel possesses all the beneficial effects of the aforementioned driving backplane 100, which will not be elaborated upon here.

[0064] This application also provides a display device 1000, such as... Figure 4As shown, it includes a display panel 100 and a housing 200 as described in any of the above embodiments.

[0065] The display panel is located inside the housing 200.

[0066] The display device 1000 can be any device that needs to display information, such as a smart bracelet, smartwatch, VR (Virtual Reality), mobile phone, tablet computer, e-book, e-newspaper, television, personal portable computer, netbook, workstation, server, personal digital assistant, portable media player, MP3 player, mobile medical device, camera, game console, digital camera, car navigation system, electronic billboard, ATM, or wearable device, etc., at least one of these devices with display functions.

[0067] The display device 1000 has all the beneficial effects of the aforementioned display panel, which will not be repeated here.

[0068] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0069] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0070] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0071] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A drive backplane (100) characterized by, The driving backplane (100) comprises: a substrate (10); and a first touch electrode area (21) and a second touch electrode area (22) are alternately arranged on the substrate (10) along a first direction (D1); wherein the first touch electrode area (21) and the second touch electrode area (22) respectively comprise at least one touch electrode group (30), and the first polarity electrode (31) and the second polarity electrode (32) of the touch electrode group (30) are arranged along the first direction (D1); the first polarity electrode (31) of the touch electrode group (30) of one of the second touch electrode areas (22) is close to the first polarity electrode (31) of the touch electrode group (30) of one adjacent first touch electrode area (21), and the second polarity electrode (32) is close to the second polarity electrode (32) of the touch electrode group (30) of another adjacent second touch electrode area (22).

2. The drive backplane (100) of claim 1, characterized in that The first touch electrode area (21) and the second touch electrode area (22) respectively comprise three touch electrode groups (30) arranged along a second direction (D2), and the first polarity electrode (31) and the second polarity electrode (32) of the three touch electrode groups (30) of the first touch electrode area (21) are arranged in the same direction along the first direction (D1), and the first polarity electrode (31) and the second polarity electrode (32) of the three touch electrode groups (30) of the second touch electrode area (22) are arranged in the same direction along the first direction (D1); the first polarity electrode (31) of the three touch electrode groups (30) of one of the second touch electrode areas (22) is close to the first polarity electrode (31) of the three touch electrode groups (30) of one adjacent first touch electrode area (21), and the second polarity electrode (32) is close to the second polarity electrode (32) of the three touch electrode groups (30) of another adjacent first touch electrode area (21), and the second direction (D2) is different from the first direction (D1).

3. The drive backplane (100) according to claim 1 or 2, characterized in that A via hole (11) is arranged between one of the second touch electrode areas (22) and one adjacent first touch electrode area (21), and the driving backplane (100) comprises a first independent electrode line (331) and a second independent electrode line (332) penetrating the via hole (11), wherein the first independent electrode line (331) is connected with the first polarity electrode (31) of one touch electrode group (30) of the first touch electrode area (21), and the second independent electrode line (332) is connected with the first polarity electrode (31) of one touch electrode group (30) of the second touch electrode area (22).

4. The drive backplane (100) according to claim 1 or 2, characterized in that The number of the first touch electrode areas (21) is plural, and the plural first touch electrode areas (21) are arranged along a second direction (D2), and the first polarity electrode (31) and the second polarity electrode (32) of the touch electrode group (30) of the plural first touch electrode areas (21) are arranged in the same direction along a first direction (D1); The number of the second touch electrode areas (22) is multiple, multiple second touch electrode areas (22) are arranged along the second direction (D2), and the first polarity electrodes (31) and the second polarity electrodes (32) of the touch electrode groups (30) of multiple second touch electrode areas (22) are arranged in the same direction along the first direction (D1). The second direction (D2) is different from the first direction (D1).

5. The drive backplane (100) of claim 4, characterized in that The substrate (10) is provided with a plurality of common electrode lines (34), and the second polarity electrodes (32) of the plurality of first touch electrode areas (21) arranged along the second direction (D2) are connected to the same common electrode line (34), and the second polarity electrodes (32) of the plurality of second touch electrode areas (22) arranged along the second direction (D2) are connected to the same common electrode line (34).

6. The drive backplane (100) according to claim 1 or 2, characterized in that The driving back plate (100) comprises third touch electrode areas (23) arranged alternately with the first touch electrode areas (21) along the second direction (D2), the third touch electrode areas (23) comprise at least one touch electrode group (30), wherein the first polarity electrodes (31) and the second polarity electrodes (32) of the touch electrode groups (30) of the third touch electrode areas (23) are arranged reversely with the first polarity electrodes (31) and the second polarity electrodes (32) of the touch electrode groups (30) of the first touch electrode areas (21) along the first direction (D1), and the second direction (D2) is different from the first direction (D1).

7. The drive backplane (100) of claim 6, characterized by The driving back plate (100) comprises fourth touch electrode areas (24) arranged alternately with the second touch electrode areas (22) along the second direction (D2), the fourth touch electrode areas (24) are arranged alternately with the third touch electrode areas (23) along the first direction (D1), and the fourth touch electrode areas (24) comprise at least one touch electrode group (30). The first polarity electrodes (31) of the touch electrode groups (30) of the third touch electrode areas (23) are close to the first polarity electrodes (31) of the touch electrode groups (30) of one adjacent fourth touch electrode area (24), and the second polarity electrodes (32) of the touch electrode groups (30) of the third touch electrode areas (23) are close to the second polarity electrodes (32) of the touch electrode groups (30) of another adjacent fourth touch electrode area (24).

8. The drive backplane (100) of claim 7, characterized by The third touch electrode areas (23) and the fourth touch electrode areas (24) each comprise three touch electrode groups (30), the first polarity electrodes (31) and the second polarity electrodes (32) of the three touch electrode groups (30) of the third touch electrode areas (23) are arranged in the same direction along the first direction (D1), and the first polarity electrodes (31) and the second polarity electrodes (32) of the three touch electrode groups (30) of the fourth touch electrode areas (24) are arranged in the same direction along the first direction (D1).

9. A display panel, characterized by, The driving back plate (100) comprises the driving back plate (100) according to any one of claims 1-8.

10. A display device (1000), characterized by The display panel comprises the display panel according to claim 9.

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