Array substrate and touch display equipment

Abstract

The invention provides an array substrate and a touch display device. The array substrate comprises a plurality of sub-pixels and a plurality of thin film transistors which are arranged in an m-row n-column matrix, a plurality of data lines arranged according to columns, a plurality of scanning lines arranged according to rows and a plurality of touch signal lines, and the number of the sub-pixels is at least two rows and three columns; a part of the thin film transistors are connected to the first sides of the corresponding sub-pixels in the row direction, the remaining thin film transistors are connected to the second sides of the corresponding sub-pixels, and the thin film transistors located in the same row are connected to the same sides of the corresponding sub-pixels; the data lines are connected with the adjacent thin film transistors close to the data lines in different rows; orthographic projections of the touch signal lines in the opening areas of the pixels are located in the openings of the sub-pixels in the corresponding pixel units, the sub-pixel columns corresponding to the touch signal lines in different rows are aligned, and the touch signal lines in every two adjacent rows are electrically connected.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and more specifically, relates to an array substrate and a touch display device. Background Art

[0002] Oxide backplane technology has been widely used, especially in the field of high-end displays. With the continuous development of liquid crystal display technology, LCD screen oxide backplane technology will become one of the important development directions of liquid crystal display technology. LCD screen oxide backplane technology uses oxide semiconductor materials to make the backplane, which has higher electron mobility and better image quality than traditional amorphous silicon. A touch display device is a display device that includes a liquid crystal oxide backplane, also known as an array substrate. By embedding the touch signal line into the liquid crystal pixel, the touch display device is made thinner and more sensitive. However, with the complexity of the display screen of the touch display device, the design of the array substrate has also become the focus and difficulty of the touch display device.

[0003] The array substrate in the related technology usually adopts the Stripe driving architecture, that is, the data line column drives multiple sub-pixels arranged in a whole column. When the display screen is relatively complex, the data line needs to be frequently flipped, resulting in high power consumption of the screen display and low reliability. Summary of the invention

[0004] The embodiments of the present application provide an array substrate and a touch display device that can achieve both low power consumption and high reliability.

[0005] In a first aspect, the present application provides an array substrate for a touch display device, the array substrate comprising: a plurality of sub-pixels and a plurality of thin film transistors arranged in a matrix of m rows and n columns, a plurality of data lines arranged in columns and a plurality of scan lines arranged in rows, any three adjacent different sub-pixels in the same row form a pixel unit; wherein m is an even number, and n is greater than or equal to 3; a plurality of the thin film transistors correspond one to one with a plurality of the sub-pixels, and the thin film transistors are connected to one side of the sub-pixels along the direction of the columns, wherein a portion of the thin film transistors are connected to the corresponding sub-pixels along the direction of the rows. The remaining number of the thin film transistors are connected to the second side of the corresponding sub-pixels along the row direction, and the thin film transistors in the same row are connected to the same side of the corresponding sub-pixels; the data line is connected to a plurality of thin film transistors in different adjacent rows close to the data line; the array substrate also includes a plurality of touch signal lines, the orthographic projections of the touch signal lines in the opening area of ​​the pixel are located within the opening of the sub-pixel unit in the corresponding pixel unit, the plurality of sub-pixel columns corresponding to the touch signal lines in different rows are aligned, and the touch signal lines in two adjacent rows are electrically connected.

[0006] In some embodiments, the array substrate includes a plurality of display units arranged in an m / 2 row and 1 column matrix, each of the display units includes 2n sub-pixels; within a display unit, the thin film transistors located in odd rows are connected to the first side of the corresponding sub-pixels along the row direction, and the thin film transistors located in even rows are connected to the second side of the corresponding sub-pixels along the row direction; the first side of the data line is connected to the thin film transistors located in the even rows, and the second side of the data line is connected to the thin film transistors located in the odd rows.

[0007] In some embodiments, the touch signal lines in odd rows are located at the openings of the corresponding sub-pixels close to the second side, and the touch signal lines in even rows are located at the openings of the corresponding sub-pixels close to the first side.

[0008] In some embodiments, the array substrate includes a plurality of display units arranged in an m / 4 row and 1 column matrix, the display unit includes 4n sub-pixels, m is a multiple of 4; in one of the display units, the thin film transistors located in the first two rows are connected to the first side of the corresponding sub-pixels along the row direction, and the thin film transistors located in the last two rows are connected to the second side of the corresponding sub-pixels along the row direction; the first side of the data line is connected to the thin film transistors in the last two rows in one of the display units, and the second side of the data line is connected to the thin film transistors in the first two rows in one of the display units.

[0009] In some embodiments, in one display unit, the touch signal lines in the first two rows are located in the openings of the corresponding sub-pixels close to the second side, and the touch signal lines in the last two rows are located in the openings of the corresponding sub-pixels close to the first side.

[0010] In some embodiments, the sub-pixel includes a pixel electrode layer. In one pixel unit, a contour shape of the pixel electrode layer corresponding to the sub-pixel provided with the touch signal line is different from a contour shape of the pixel electrode layer corresponding to the sub-pixel not provided with the touch signal line.

[0011] In some embodiments, the pixel electrode layer includes a plurality of electrode strips, the extension direction of the electrode strips is the same as the extension direction of the touch signal line, and the orthographic projection of the touch signal line on the pixel electrode layer is located between two adjacent electrode strips.

[0012] In some embodiments, in one pixel unit, the number of the electrode strips corresponding to the sub-pixel provided with the touch signal line is the same as the number of the electrode strips corresponding to the sub-pixel not provided with the touch signal line.

[0013] In some embodiments, the touch signal line is electrically connected to the common electrode layer through a conductive via.

[0014] In some embodiments, within one pixel unit, the number of the touch signal lines is one or more.

[0015] The array substrate provided by the present application has the beneficial effect that: compared with the array substrate in the related art, the multiple thin film transistors connected to the same data line are located on one side of the data line. The array substrate provided by the present application connects a part of the thin film transistors to the first side of the corresponding sub-pixel along the row direction, and the remaining number of thin film transistors are connected to the second side of the corresponding sub-pixel along the row direction, and the thin film transistors located in the same row are connected to the same side of the corresponding sub-pixel, so that the data line is connected to multiple thin film transistors close to the data line in different adjacent rows, that is, the multiple thin film transistors connected to the same data line are staggered on both sides of the data line, so that when the display screen is more complex, the number of data line flips is indirectly reduced, which is conducive to reducing the power consumption of the screen display. At the same time, by designing the orthographic projection of the touch signal line in the opening area of ​​the pixel unit so that it is located within the opening of the sub-pixel in the corresponding pixel unit, the distance between the touch signal line and the data line is increased, and the probability of defects caused by the short circuit between the touch signal line and the data line is greatly reduced, thereby improving the reliability of the array substrate, and thus making the array substrate achieve the purpose of taking into account both low power consumption and high reliability.

[0016] In a second aspect, the present application further provides a touch display device, comprising the array substrate described in the first aspect.

[0017] The beneficial effect of the touch display device provided by the present application is that: by connecting a part of the thin film transistors to the first side of the corresponding sub-pixel along the row direction, and the remaining number of thin film transistors to the second side of the corresponding sub-pixel along the row direction, and the thin film transistors in the same row are connected to the same side of the corresponding sub-pixel, so that the data line is connected to multiple thin film transistors close to the data line in different adjacent rows, that is, multiple thin film transistors connected to the same data line are staggered on both sides of the data line, so that when the display screen is more complex, the number of data line flips is indirectly reduced, which is conducive to reducing the power consumption of the screen display. At the same time, by designing the positive projection of the touch signal line in the opening area of ​​the pixel unit so that it is located within the opening of the sub-pixel in the corresponding pixel unit, the distance between the touch signal line and the data line is increased, and the probability of defects caused by the short circuit between the touch signal line and the data line is greatly reduced, thereby improving the reliability of the array substrate, and then the touch display device achieves the purpose of taking into account both low power consumption and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A structural diagram of an array substrate provided in Embodiment 1 of the present application;

[0020] Figure 2 for Figure 1 A schematic diagram of a part of the structure of the array substrate;

[0021] Figure 3 for Figure 2 A cross-sectional view at the dotted line M in FIG.

[0022] Figure 4 for Figure 2 A cross-sectional view at the dotted line N in FIG.

[0023] Figure 5 This is a structural diagram of the touch signal line of the present application being located in the central area of ​​the opening of the corresponding sub-pixel;

[0024] Figure 6 This is a structural diagram of the array substrate provided in Example 2 of the present application.

[0025] Among them, the reference numerals in the figure are:

[0026] 10. Glass substrate; 11. Inorganic layer; 12. Metal layer; 13. First insulating layer; 14. Organic layer; 15. Common electrode layer; 16. Third insulating layer; 17. Pixel electrode layer;

[0027] 21. Gate layer; 22. Gate insulating layer; 23. Active layer; 241. Source; 242. Drain; 25. Second insulating layer. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and 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 should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Embodiment 1

[0033] like Figures 1 to 4 As shown, the present application provides an array substrate for a touch display device, the array substrate comprising: a plurality of sub-pixels ( Figure 1 R sub-pixels, G sub-pixels and B sub-pixels in the image) and a plurality of thin film transistors, a plurality of data lines arranged in columns ( Figure 1 D1, D2, D3, D4) and multiple scan lines arranged in rows ( Figure 1 G1, G2, G3, G4 in the figure), any three different adjacent sub-pixels in the same row form a pixel unit; the number of sub-pixels is at least 2 rows and 3 columns; a plurality of thin film transistors correspond to the plurality of sub-pixels one by one, and the thin film transistors are connected to one side of the sub-pixels along the column direction (such as Figure 2 wherein a portion of the thin film transistors are connected to a first side of the corresponding sub-pixel along the row direction, and the remaining number of thin film transistors are connected to a second side of the corresponding sub-pixel along the row direction, and thin film transistors located in the same row are connected to the same side of the corresponding sub-pixel; the data line is connected to a plurality of thin film transistors adjacent to the data line in different rows; the array substrate also includes a plurality of touch signal lines (located at Figure 3 The touch signal line is located in the opening area of ​​the pixel unit (TP in the dotted box in FIG. Figure 1 The first row of pixels in Figure 1 The positive projection of the upper half of the dotted box) is located in the sub-pixel ( Figure 1 Within the opening of the B sub-pixel in the image, multiple sub-pixel columns corresponding to the touch signal lines in different rows are aligned and the touch signal lines in two adjacent rows are electrically connected.

[0034] The above array substrate is applied to a touch display device, that is, the touch signal lines and data lines of the array substrate in this application belong to the same metal layer ( Figure 3 The TP and D layers shown in the figure not only save the thickness of the separate TP touch layer compared to other conventional display screen products, but also make it lighter and thinner; at the same time, the orthographic projection of the touch signal line in the opening area of ​​the pixel unit is designed to be located within the opening of the sub-pixel in the corresponding pixel unit, thus increasing the spacing between the touch signal line and the data line, greatly reducing the probability of defects caused by the short circuit between the touch signal line and the data line, thereby improving the reliability of the array substrate.

[0035] Figure 3 Shows Figure 2 Cross-sectional view of the first row of B sub-pixels at the dotted line M. Figure 2 The touch signal line in corresponds to Figure 3 The TP in the dotted box and the D outside the dotted box are data lines set on the same layer as the TP. Figure 3 The dashed box in the Figure 2 The opening size of the B sub-pixel in Figure 3 It can be seen that the touch signal line and the data line are located in the inorganic layer 11 ( Figure 3 The same metal layer 12 (GI layer in Figure 3 SD layer in . Figure 3 The PLN layer in the structure is an organic layer 14, and a first insulating layer 13 is provided between the organic layer 14 and the layer where TP and D are located. The first insulating layer 13 covers the touch signal line and the data line, so that the touch signal line is separated from the adjacent data line, reducing the risk of short circuit between the touch signal line and the adjacent data line.

[0036] Figure 4 Shows Figure 2 The cross-sectional view of the thin film transistor corresponding to the second row B sub-pixel at the dotted line N. The thin film transistor includes a gate layer 21, a gate insulating layer 22, an active layer 23, a source electrode 241 and a drain electrode 242 connected to the active layer 23, and a second insulating layer 25 disposed on the glass substrate 10.

[0037] It should be noted that in each pixel unit, the number of touch signal lines is 1. Figure 2 As shown, the positive projection of the touch signal line in the opening area of ​​the pixel unit is located at the B sub-pixel in the corresponding pixel (such as Figure 2 The portion of the touch signal line in the opening in the corresponding pixel extends along the column direction, that is, the portion of the touch signal line in the opening in the corresponding pixel is parallel to the data line.

[0038] The array substrate in the embodiment of the present application is connected to a data line with multiple thin film transistors close to the data line in different adjacent rows by connecting a part of the thin film transistors to the first side of the corresponding sub-pixel along the row direction, and the remaining thin film transistors to the second side of the corresponding sub-pixel along the row direction, and the thin film transistors in the same row are connected to the same side of the corresponding sub-pixel, so that the data line is connected to multiple thin film transistors in different adjacent rows, that is, multiple thin film transistors connected to the same data line are staggered on both sides of the data line, so that when the display screen is more complex, the number of data line flips is indirectly reduced, which is conducive to reducing the power consumption of the screen display. At the same time, by designing the positive projection of the touch signal line in the opening area of ​​the pixel unit so that it is located within the opening of the sub-pixel in the corresponding pixel unit, the distance between the touch signal line and the data line is increased, and the probability of defects caused by the short circuit between the touch signal line and the data line is greatly reduced, thereby improving the reliability of the array substrate, and further enabling the array substrate to achieve the purpose of taking into account both low power consumption and high reliability.

[0039] The following description takes the case where the R sub-pixels, the G sub-pixels and the B sub-pixels are sequentially arranged in a periodic manner in each pixel unit and the number of the touch signal line in each pixel unit is 1 as an example.

[0040] Figure 1 FIG. 1 only illustrates the situation where 12 sub-pixels are arranged in a matrix of 4 rows and 3 columns. Figure 1 As shown, in this embodiment, the array substrate includes two display units arranged in two rows and one column ( Figure 1 The dotted box in the middle is a display unit), each display unit includes 2n sub-pixels; that is, when the number of rows of sub-pixels is large, any two adjacent rows are a display unit, and in one display unit, the thin film transistors located in the odd rows are connected to the first side of the corresponding sub-pixels along the row direction, and the thin film transistors located in the even rows are connected to the second side of the corresponding sub-pixels along the row direction; the first side of the data line is connected to the thin film transistors located in the even rows, and the second side of the data line is connected to the thin film transistors located in the odd rows; the first side of the data line is connected to the thin film transistors in the even rows, and the second side of the data line is connected to the thin film transistors in the odd rows.

[0041] For example, Figure 1 As shown, the number of sub-pixels is 4 rows and 3 columns, the first two rows form a display unit, and the last two rows form a display unit; Figure 1 The thin film transistors of the first and third rows in the row are connected to the first side of the corresponding sub-pixel along the row direction (such as Figure 1 ), in even-numbered rows (such as Figure 1 The thin film transistors of the second and fourth rows in the row are connected to the second side of the corresponding sub-pixels along the row direction (such as Figure 1The second data line D2 is taken as an example for explanation. The first side of the data line D2 is located on the even-numbered rows (such as Figure 1 The second side of the data line is connected to the thin film transistors located in the odd-numbered rows (such as the 2nd and 4th rows in the figure), and the second side of the data line is connected to the thin film transistors located in the odd-numbered rows (such as the Figure 1 The thin film transistors in rows 1 and 3 are connected.

[0042] In the related art, all thin film transistors are connected to one side of the corresponding sub-pixel, that is, multiple thin film transistors connected to the same data line are located on one side of the data line. In the case of dot flipping, the above column driving method requires frequent flipping of the data line. Figure 1 In the same case, if you want the pixel units in the first row to display G and the pixel units in the second row to display R, the data lines need to be frequently flipped to achieve this. Frequent flipping results in higher power consumption for the screen display.

[0043] Through the above settings, when the pixel units in the first row display G and the pixel units in the second row display R, only the second data line D2 on the left side needs to be driven without flipping, which indirectly reduces the number of data line flipping times compared to the Stripe driving method in the related art, thereby reducing the screen power consumption. At the same time, by designing the orthographic projection of the touch signal line in the opening area of ​​the pixel unit so that it is located within the opening of the sub-pixel in the corresponding pixel unit, the spacing between the touch signal line and the data line is increased, and the probability of defects caused by the short circuit between the touch signal line and the data line is greatly reduced, thereby improving the reliability of the array substrate, and thus enabling the array substrate to achieve the purpose of both low power consumption and high reliability.

[0044] It should be noted that Figure 1 Only schematic diagrams of the structure of two display units are given. When there are more sub-pixels, for example, when the sub-pixels are arranged in a matrix of 8 rows and 12 columns, 4 display units are included, each unit includes 2 rows and 12 columns, a total of 24 sub-pixels; when the sub-pixels are arranged in a matrix of 48 rows and 6 columns, 24 display units are included, each unit includes 2 rows and 6 columns, a total of 12 sub-pixels, and so on. In this embodiment, the array substrate includes a plurality of display units arranged in a matrix of m / 2 rows and 1 column, each display unit includes 2n sub-pixels, that is, any two adjacent rows are a display unit. For specific arrangement, refer to Figure 1 One display unit is shown arranged in rows.

[0045] Of course, two or three touch signal lines may also be provided in the opening area of ​​each pixel unit, and the design is based on actual needs, and no specific limitation is made here.

[0046] In the process of designing the routing of the touch signal line, the position of the orthographic projection of the touch signal line in the opening of the corresponding sub-pixel is also an important factor.

[0047] like Figure 1 and Figure 2 As shown, in some embodiments, the touch signal lines in odd rows are located at the opening of the corresponding sub-pixel close to the second side, and the touch signal lines in even rows are located at the opening of the corresponding sub-pixel close to the first side.

[0048] Through the above arrangement, the thin film transistors corresponding to the sub-pixels can be avoided well, and the signal interference between the two is reduced, which is beneficial to improving the reliability of the array substrate.

[0049] like Figure 3 As shown, the above-mentioned sub-pixels include a common electrode layer 15 and a pixel electrode layer 17. In a pixel unit, the contour shape of the pixel electrode layer corresponding to the sub-pixel with a touch signal line is different from the contour shape of the pixel electrode layer corresponding to the sub-pixel without a touch signal line.

[0050] Specifically, the pixel electrode layer 17 includes a plurality of electrode strips, the extension direction of the electrode strips is the same as the extension direction of the touch signal line, and the orthographic projection of the touch signal line on the pixel electrode layer is located between adjacent electrode strips. The contour shape of the pixel electrode layer corresponding to the sub-pixel with the touch signal line is different from the contour shape of the pixel electrode layer corresponding to the sub-pixel without the touch signal line because a gap needs to be reserved for the touch signal line.

[0051] The outline shape of the pixel electrode layer corresponding to the above sub-pixel refers to the outline shape of the pixel opening corresponding to the sub-pixel.

[0052] A third insulating layer 16 is provided between the common electrode layer 15 and the pixel electrode layer 17. Figure 3 PV2 layer in ).

[0053] In this embodiment, in one pixel unit, the number of electrode strips corresponding to the B sub-pixel provided with the touch signal line is the same as the number of electrode strips corresponding to the sub-pixel (eg, R sub-pixel and G sub-pixel) not provided with the touch signal line.

[0054] For example, Figure 2 and Figure 3 , each sub-pixel opening includes four electrode strips, and when the four electrode strips are arranged, they need to avoid the touch signal lines of the corresponding sub-pixels. Figure 2 and Figure 3 In the embodiment, the touch signal line in the first row is located near the opening of the B sub-pixel and near the second side. Figure 3, the orthographic projection of the touch signal line in the first row on the pixel electrode layer is located between the first electrode strip and the second electrode strip of the opening of the B sub-pixel close to the second side. Figure 3 As shown, the positive projection of the touch signal line on the pixel electrode layer 17 is located in the opening of the corresponding B sub-pixel. Figure 3 In this way, the spacing between the first electrode strip and the second electrode strip increases from the second side to the first side, so that the contour area of ​​the pixel electrode layer corresponding to the sub-pixel provided with the touch signal line is larger than the contour area of ​​the pixel electrode layer corresponding to the sub-pixel not provided with the touch signal line.

[0055] Correspondingly, the touch signal line located in the second row is located near the opening of the B sub-pixel and close to the first side. Figure 2 The orthographic projection of the touch signal line in the second row on the pixel electrode layer is located between the first electrode strip and the second electrode strip close to the first side of the opening of the B sub-pixel.

[0056] It should be noted that the number of electrode strips corresponding to the opening of each sub-pixel may be 4, or may be 2, 3, 5, 6, etc. When the number of electrode strips corresponding to the opening of each sub-pixel changes, the position of the touch signal line is appropriately adjusted, and no specific limitation is made here.

[0057] Of course, in addition to being located near the first side or the second side of the opening of the B sub-pixel, in some embodiments, the orthographic projection of the touch signal line on the pixel electrode layer may also be located near the center area of ​​the corresponding sub-pixel opening along the row direction, such as Figure 5 shown.

[0058] It should be noted that Figure 5 The area close to the center mentioned here is only relative to the situation on both sides of the edge. Specifically, it is also to increase the distance between the touch signal line and the two adjacent data lines along the direction of the row, thereby reducing the risk of mutual interference between the three.

[0059] In addition, the number of electrode strips of the B sub-pixel with touch signal lines and the number of electrode strips of the sub-pixel without touch signal lines (such as R sub-pixel and G sub-pixel) may also be different, which is not specifically limited here.

[0060] The touch signal lines are electrically connected to the common electrode layer 15 through conductive vias (not shown in the figure).

[0061] By opening a via hole in the common electrode layer, the via hole penetrates to the layer where the touch signal line is located, and then forming a conductive via hole, the common electrode layer is electrically connected to the touch signal line, so that the load of the touch signal line can be reduced.

[0062] Embodiment 2

[0063] Figure 6 A schematic structural diagram of an array substrate of the second embodiment is shown. The main difference between the array substrate in the second embodiment and that in the first embodiment is that the arrangement of the connection positions of the plurality of thin film transistors and the corresponding sub-pixels is different.

[0064] Figure 6 FIG. 1 only illustrates the situation where 12 sub-pixels are arranged in a matrix of 4 rows and 3 columns. Figure 6 As shown, in this embodiment, the array substrate includes one display unit in one row and one column, and each display unit includes 12 sub-pixels; in one display unit, the thin film transistors located in the first two rows are connected to the first side of the corresponding sub-pixels along the row direction, and the thin film transistors located in the last two rows are connected to the second side of the corresponding sub-pixels along the row direction; the first side of the data line is connected to the thin film transistors in the last two rows in one display unit, and the second side of the data line is connected to the thin film transistors in the first two rows in one display unit.

[0065] In a display unit, the thin film transistors in the first two rows are connected to the first side of the corresponding sub-pixel along the row direction, and the thin film transistors in the last two rows are connected to the second side of the corresponding sub-pixel along the row direction; the first side of the data line is connected to the thin film transistors in the last two rows in a display unit, and the second side of the data line is connected to the thin film transistors in the first two rows in a display unit, so that the data line is connected to multiple thin film transistors in different adjacent rows close to the data line, that is, multiple thin film transistors connected to the same data line are staggered on both sides of the data line, so that when the display screen is more complex, the number of data line flips is indirectly reduced, which is conducive to reducing the power consumption of the screen display. At the same time, the positive projection of the touch signal line in the opening area of ​​the pixel unit is designed to be located within the opening of the sub-pixel in the corresponding pixel unit, so that the distance between the touch signal line and the data line is increased, and the probability of defects caused by the short circuit between the touch signal line and the data line is greatly reduced, thereby improving the reliability of the array substrate, and further enabling the array substrate to achieve the purpose of taking into account both low power consumption and high reliability.

[0066] When the display screen displays G sub-pixels in the first and second rows and R sub-pixels in the third and fourth rows, only the second data line G2 on the left needs to be driven without flipping, which indirectly reduces the number of data line flips and thus reduces screen power consumption.

[0067] It should be noted that Figure 6The structural diagram of a display unit is only schematically shown. When there are many sub-pixels, for example, when the sub-pixels are arranged in a matrix of 8 rows and 12 columns, 2 display units are included, each unit includes 4 rows and 12 columns, and a total of 48 sub-pixels; when the sub-pixels are arranged in a matrix of 48 rows and 6 columns, 12 display units are included, each unit includes 4 rows and 6 columns, and a total of 24 sub-pixels, and so on. In this embodiment, the TFT array basically includes a plurality of display units arranged in a matrix of m / 4 rows and 1 column, where m is a multiple of 4, and each display unit includes 4n sub-pixels, that is, any four adjacent rows are a display unit. For specific arrangement, refer to Figure 6 One display unit is shown arranged in rows.

[0068] In this embodiment, in a display unit, the touch signal lines in the first two rows are located in the opening of the corresponding sub-pixel close to the second side, and the touch signal lines in the last two rows are located in the opening of the corresponding sub-pixel close to the first side.

[0069] Of course, in addition to being located near the opening of the B sub-pixel near the first side or near the second side, the touch signal line can also be located in the center area of ​​the corresponding sub-pixel opening along the row direction. Figure 5 As shown, no specific limitation is made here.

[0070] Among them, the structure of the array substrate in the second embodiment is different from that of the array substrate in the above-mentioned first embodiment except that the arrangement of the connection positions of multiple thin film transistors and corresponding sub-pixels is different. The rest of the structure, such as the structure of the thin film transistors and the structure of the sub-pixels, is the same and will not be repeated here.

[0071] Embodiment 3

[0072] The embodiment of the present application further provides a touch display device. The touch display device includes a housing and an array substrate, wherein the array substrate is disposed on the housing.

[0073] It should be noted that the structure of the array substrate in the embodiment of the present application may be the same as the structure of the array substrate in the above-mentioned embodiment one, or may be the same as the structure of the array substrate in the above-mentioned embodiment two. For the structure of the array substrate, specific reference is made to the structures of the array substrates in the above-mentioned embodiments one and two, and no further details will be given here.

[0074] The touch display device in the embodiment of the present application connects a portion of the thin film transistors to the first side of the corresponding sub-pixel along the row direction, and the remaining number of thin film transistors to the second side of the corresponding sub-pixel along the row direction, and the thin film transistors in the same row are connected to the same side of the corresponding sub-pixel, so that the data line is connected to multiple thin film transistors in different adjacent rows close to the data line, that is, multiple thin film transistors connected to the same data line are staggered on both sides of the data line, so that when the display screen is more complex, the number of data line flips is indirectly reduced, which is conducive to reducing the power consumption of the screen display. At the same time, by designing the positive projection of the touch signal line in the opening area of ​​the pixel unit so that it is located within the opening of the sub-pixel in the corresponding pixel unit, the distance between the touch signal line and the data line is increased, and the probability of failure caused by the short circuit between the touch signal line and the data line is greatly reduced, thereby improving the reliability of the array substrate, and thus the touch display device achieves the purpose of both low power consumption and high reliability.

[0075] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An array substrate for a touch display device, characterized in that: The array substrate comprises: a plurality of sub-pixels and a plurality of thin film transistors arranged in a matrix of m rows and n columns, a plurality of data lines arranged in columns, and a plurality of scan lines arranged in rows, and any three adjacent and different sub-pixels in the same row form a pixel unit; wherein m is an even number, and n is greater than or equal to 3; The plurality of thin film transistors correspond to the plurality of sub-pixels one by one, and the thin film transistors are connected to one side of the sub-pixels along the direction of the columns, wherein a portion of the thin film transistors are connected to a first side of the corresponding sub-pixels along the direction of the rows, and the remaining number of the thin film transistors are connected to a second side of the corresponding sub-pixels along the direction of the rows, and the thin film transistors in the same row are connected to the same side of the corresponding sub-pixels; the data line is connected to the plurality of thin film transistors in different adjacent rows close to the data line; The array substrate also includes multiple touch signal lines, the orthographic projections of the touch signal lines in the opening area of ​​the pixel unit are located within the openings of the sub-pixels in the corresponding pixel unit, the multiple sub-pixels corresponding to the touch signal lines in different rows are in the same column, and the touch signal lines in two adjacent rows are electrically connected.

2. The array substrate according to claim 1, characterized in that: The array substrate comprises a plurality of display units arranged in a matrix of m / 2 rows and 1 column, each of the display units comprising 2n sub-pixels; in one of the display units, the thin film transistors located in odd rows are connected to a first side of the corresponding sub-pixel along the row direction, and the thin film transistors located in even rows are connected to a second side of the corresponding sub-pixel along the row direction; A first side of the data line is connected to the thin film transistors located in even-numbered rows, and a second side of the data line is connected to the thin film transistors located in odd-numbered rows.

3. The array substrate according to claim 2, characterized in that: The touch signal lines located in odd-numbered rows are located at the openings of the corresponding sub-pixels close to the second side, and the touch signal lines located in even-numbered rows are located at the openings of the corresponding sub-pixels close to the first side.

4. The array substrate according to any one of claims 1 to 3, characterized in that: The array substrate comprises a plurality of display units arranged in a matrix of m / 4 rows and 1 column, each of the display units comprises 4n sub-pixels, where m is a multiple of 4; in one of the display units, the thin film transistors located in the first two rows are connected to a first side of the corresponding sub-pixel along the row direction, and the thin film transistors located in the last two rows are connected to a second side of the corresponding sub-pixel along the row direction; A first side of the data line is connected to the thin film transistors in the last two rows in one of the display units, and a second side of the data line is connected to the thin film transistors in the first two rows in one of the display units.

5. The array substrate according to claim 4, characterized in that: In one of the display units, the touch signal lines in the first two rows are located in the openings of the corresponding sub-pixels close to the second side, and the touch signal lines in the last two rows are located in the openings of the corresponding sub-pixels close to the first side.

6. The array substrate according to any one of claims 1 to 3 and 5, characterized in that: The sub-pixel includes a pixel electrode layer. In one pixel unit, a contour shape of the pixel electrode layer corresponding to the sub-pixel provided with the touch signal line is different from a contour shape of the pixel electrode layer corresponding to the sub-pixel not provided with the touch signal line.

7. The array substrate according to claim 6, characterized in that: The pixel electrode layer includes a plurality of electrode strips, the extension direction of the electrode strips is the same as the extension direction of the touch signal line, and the orthographic projection of the touch signal line on the pixel electrode layer is located between two adjacent electrode strips.

8. The array substrate according to claim 7, characterized in that: In one of the pixel units, the number of the electrode strips corresponding to the sub-pixel provided with the touch signal line is the same as the number of the electrode strips corresponding to the sub-pixel not provided with the touch signal line; And / or, the sub-pixel includes a common electrode layer, and the touch signal line is electrically connected to the common electrode layer through a conductive via.

9. The array substrate according to any one of claims 1 to 3 and 5, characterized in that: In one pixel unit, the number of the touch signal lines is one or more.

10. A touch display device, characterized in that: include: The array substrate according to any one of claims 1 to 9.

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