Array substrate, touch display field and touch display device

Abstract

Array substrate comprising: a substrate (01), a display area (10) and a non-display area (20) surrounding the display area (10), the non-display area (20) being provided with a driver chip (21), the display area (10) comprising: multiple data lines (12), each of the multiple data lines (12) being electrically connected to the driver chip (21) via a respective set of multiple first connection lines (22), and multiple touch electrode blocks (13), the multiple touch electrode blocks (13) being electrically connected to the driver chip (21) via multiple touch signal lines (14), wherein in the non-display area (20) the multiple touch signal lines (14) do not overlap with the multiple first connection lines (22) in a direction perpendicular to the substrate (01), the display area (10) being rectangular and the driver chip (21) being provided in a first non-display area.which corresponds to a first side (101) of the display area (10), and at least one of the touch signal lines (14) extends from the driver chip (21) to a second non-display area corresponding to a second side (102), and / or a third non-display area corresponding to a third side (103) of the display area (10), for electrical connection to at least one of the touch electrode blocks (13) in the display area (10), wherein the second side (102) and the third side (103) of the display area (10) are arranged opposite each other, wherein in the first non-display area each of the touch signal lines (14) does not overlap with the multiple first connection lines (22) in the direction perpendicular to the substrate (01), wherein the array substrate further comprises the following: a common electrode layer, wherein the common electrode layer comprises multiple electrode blocks isolated from each other,the electrode blocks are arranged uniformly in a matrix pattern and the electrode blocks are multiplexed as the touch electrode blocks (13), wherein the common signal lines are multiplexed as touch signal lines (14), and each of the touch electrode blocks (13) is electrically connected to the corresponding touch signal lines (14) via a through hole (165) in the insulating layer (02).

Description

Technical field The present disclosure relates to the field of display technology, in particular an array substrate, a touch field display and a touch display device. Technical background With the rapid development of display technology, touchscreens have become commonplace. Compared to a conventional display device that only provides a display function, a touchscreen allows the user to interact with the display control unit. A touchscreen display can not only display information but also control other functions through touch operation. Currently, touch-enabled indicator devices are primarily divided into on-cell and in-cell types. The in-cell touch indicator device is gaining considerable attention due to its relatively light weight and thin profile. However, the array substrate of existing in-cell touch indicator devices requires a touch signal line for each touch electrode block. As the product size increases, a greater number of touch signal wires are needed. Since the touch signal lines and data lines overlap in the direction perpendicular to the substrate, capacitance between them typically increases, leading to problems such as electrostatic discharge and open circuits or short circuits. The CN 1 04 238 787 A reveals a flat screen with touch control. Another flat screen with touch control is from US 2010 / 0 194 697 A1 . Summary of the invention Embodiments of the present disclosure provide an array substrate, a touch field display, and a touch display device to prevent the data lines from being adversely affected by the touch signal lines due to the increased capacitance between them. To this end, the present disclosure employs the following technical solution: In a first aspect, embodiments of the present disclosure provide an array substrate comprising: a substrate, a display area, and a non-display area surrounding the display area, the non-display area being provided with a driver chip; the display area comprising multiple data lines, each of which is electrically connected to the driver chip via a respective set of multiple first connection lines; and multiple touch electrode blocks.wherein the multiple touch electrode blocks are electrically connected to the driver chip via multiple touch signal lines, wherein in the non-display area the multiple touch signal lines do not overlap with the multiple first connection lines in a direction perpendicular to the substrate, wherein the display area is rectangular and the driver chip is provided in a first non-display area corresponding to a first side of the display area, and at least one of the touch signal lines extends from the driver chip to a second non-display area corresponding to a second side, and / or a third non-display area corresponding to a third side of the display area, for electrical connection to at least one of the touch electrode blocks in the display area, wherein the second side and the third side of the display area are arranged opposite to each other,wherein in the first non-display region each of the touch signal lines does not overlap with the multiple first connecting lines in the direction perpendicular to the substrate, wherein the array substrate further comprises the following: a common electrode layer, wherein the common electrode layer comprises multiple electrode blocks insulated from each other, the electrode blocks being uniformly arranged in a matrix pattern and the electrode blocks being multiplexed as the touch electrode blocks, wherein the common signal lines are multiplexed as touch signal lines, and each of the touch electrode blocks being electrically connected to the corresponding touch signal lines via a through-hole in the insulating layer. In a second aspect, embodiments of the present disclosure further provide a touch indicator field which includes an array substrate provided by the first aspect. In a third aspect, embodiments of the present disclosure further provide a touch indicator device which has a touch indicator field provided by the second aspect. In the array substrate, touch field display, and touch display device provided by the embodiments of the present disclosure, the non-display area of ​​the array substrate is provided with a driver chip and multiple first connection lines, the display area of ​​the array substrate comprises multiple data lines, the multiple data lines being connected to the driver chip via multiple first connection lines, and multiple touch electrode blocks, the multiple touch electrode blocks being electrically connected to the driver chip via multiple touch signal lines, and in the non-display area, the multiple touch signal lines do not overlap with the multiple first connection lines in a direction perpendicular to the substrate.so that the capacitance between the touch signal lines and the first connecting lines is reduced, and therefore the possibilities of generating electrostatic discharge and open circuits or short circuits due to the release of electrostatic discharge are reduced. Description of the drawings Further features, functions and advantages of the present disclosure become more apparent from the detailed illustration below of the embodiments of the present disclosure with reference to the accompanying drawings, in which: Fig. 1 is a schematic top view showing an embodiment of an array substrate structure according to one embodiment of the present disclosure, Fig. 2 is a sectional view shown along a line AA' in Fig. 1, Fig. 3 is a schematic top view showing a structure of an array substrate according to another embodiment of the present disclosure, Fig. 4 is a schematic top view showing a structure of the array substrate according to another embodiment of the present disclosure, Fig. 5 is a schematic top view showing a contact electrode block in Fig. 4, Fig.Figure 6 is a schematic top view showing a structure of an array substrate according to another embodiment of the present disclosure, Figure 7 is a schematic top view showing a structure of an array substrate according to another embodiment of the present disclosure, Figure 8 is a schematic circuit diagram view of the switching circuit in Figure 7, and Figure 9 is a schematic top view showing a structure of an array substrate according to another embodiment of the present disclosure. Detailed description of the preferred embodiment In conjunction with the accompanying drawings, the embodiment of the present disclosure is described in detail below. It should be clear that the specific embodiments described herein merely illustrate the disclosure and do not limit the present invention. It should also be noted that the drawings, for the sake of clarity, only illustrate the present disclosure and do not refer to the entire content, but to a part thereof. One embodiment of the present disclosure creates an array substrate. Fig. 1 is a schematic top view showing an embodiment of an array substrate structure according to an embodiment of the present disclosure. As shown in Fig. 1, the array substrate comprises: a substrate 01, a display area 10, and a non-display area 20 surrounding the display area 10; the non-display area 20 is provided with a driver chip 21; the display area 10 has: several data lines 12, each of which is electrically connected to the driver chip via a separate set of several first connection lines, and several touch electrode blocks 13, which are electrically connected to the driver chip 21 via several touch signal lines 14; in the non-display area 20, the several touch signal lines 14 do not overlap with the several first connection lines 22 in a direction perpendicular to the substrate 01.The display area 10 refers to an area in which display pixels are provided on the substrate 01. The display area 10 has a rectangular area overall, of which two opposite sides from the four sides can be defined as the first side 101 and fourth side 104 of the display area 10, respectively, and the other two opposite sides from the four sides can be defined as the second side 102 and third side 103 of the display area 10, respectively. The driver chip 21 refers to a chip configured to provide data signals and touch signals, and the driver chip 21 is provided outside a first side 101 of the display area 10 (i.e., the driver chip 21 is provided in a first non-display area corresponding to a first side 101 of the display area 10). It should be noted that in Fig.Figure 1 shows for illustrative purposes only that each of the touch electrode blocks 13 corresponds to one of the touch signal lines 14; however, the present embodiment is not limited to this. Alternatively, each of the touch electrode blocks 13 can be configured to correspond to the multiple touch signal lines 14. In the array substrate according to the present embodiment, the multiple touch signal lines 14 do not overlap with the multiple first connection lines 22 in a direction perpendicular to the substrate in the non-display area, so that the capacitance between the touch signal lines 14 and the first signal lines 22 is reduced and thus the possibilities of generating electrostatic discharge and open circuit or short circuit due to the release of electrostatic discharge are reduced. Fig. 2 is a sectional view shown along a section line AA' in Fig. 1. In combination with Fig. 1 and Fig. 2, a common electrode layer (not shown) is provided on the substrate 01, comprising several isolated electrode blocks, each of which is connected to the driver chip via a common signal line and is arranged uniformly in a matrix pattern. The electrode blocks are multiplexed as touch electrode blocks 13, the common signal lines are multiplexed as touch signal lines 14, and each of the touch electrode blocks 13 is electrically connected to the corresponding touch signal lines 14 via a through-hole 165 in the insulating layer 02. The structure can be fabricated in a relatively simple and cost-effective manner. For illustration, at least one of the touch signal lines 14 extends from the driver chip 21 to outside the second side 102 of the display area 10 (i.e., at least one of the touch signal lines 14 extends from the driver chip 21 to a second non-display area corresponding to a second side 102 of the display area 10) (see Fig. 1), or at least one of the touch signal lines 14 extends from the driver chip 21 to outside the third side 103 of the display area 10 (i.e., at least one of the touch signal lines 14 extends from the driver chip 21 to a third non-display area corresponding to a third side 103 of the display area 10) (see Fig. 3), in such a way that it is electrically connected to at least one of the touch electrode blocks 13 in the display area 10.In such an arrangement, the touch signal lines 14, which extend outside the second side 102 of the display area 10 or outside the third side 103 of the display area 10 (i.e., which extend to the second non-display area of ​​the display area 10 or the third non-display area of ​​the display area 10), do not overlap with the first connection lines 22 in a direction perpendicular to the substrate 01, thus preventing the first connection lines 22 from being adversely affected by the touch signal lines 14, which extend outside the second side 102 of the display area 10 or outside the third side 103 of the display area 10 (i.e., which extend to the second non-display area of ​​the display area 10 or the third non-display area of ​​the display area 10), due to the increased capacitance between the touch signal lines 14 and the first connection lines 22. In the embodiment of the present disclosure, a row direction refers to the direction of propagation from the second side 102 to the third side 103 of the display area 10, or the direction of propagation from the third side 103 to the second side 102 of the display area 10. A column direction refers to the direction of propagation from the first side 101 to the fourth side 104 of the display area 10, or the direction of propagation from the first side 101 to the fourth side 104 of the display area 10. The column direction and the row direction are perpendicular to each other. It is noted that in all the figures the same reference numerals refer to the same parts and the same parts from the above embodiment of Fig. 1 are not explained again in the following embodiments. As illustrated in Fig. 4, each of the touch signal lines 14 can extend from the driver chip 21 to outside the second side 102 of the display area 10 (i.e., each of the touch signal lines 14 can extend from the driver chip 21 to the second non-display area of ​​the display area 10). In such an arrangement, the touch signal lines 14 do not overlap with the first connection lines 22 in the direction perpendicular to the substrate 01, thus preventing the first connection lines 22 from being adversely affected by the touch signal lines 14 due to the increased capacitance between them. It is noted that each of the touch signal lines 14 can also extend from the driver chip 21 to outside the third side 103 of the display area 10 (i.e.,to the third non-display area of ​​the display area 10), and such an arrangement can also prevent the first connecting lines 22 from being adversely affected by the touch signal lines 14, which will not be explained again here. For illustration, with reference to Fig. 4, the multiple touch signal lines 14 can be directly electrically connected to the corresponding touch electrode block 13 of the display area 10 outside the second side 102 of the display area 10 (i.e., in the second non-display area of ​​the display area 10). Such an arrangement can prevent the first connection lines 22 from being adversely affected by the touch signal lines 14 due to the increased capacitance between them. It is noted that if each of the touch signal lines 14 runs from the driver chip 21 outside the third side 103 of the display area 10 (i.e.,in the third non-display area of ​​the display area 10), the multiple touch signal lines 14 can be electrically connected directly to the corresponding touch electrode blocks 13 outside the third side 103 of the display area 10 (i.e. in the third non-display area of ​​the display area 10). Fig. 5 is a schematic top view of the touch electrode block in Fig. 4. The touch electrode block 13 corresponds to several pixel cells 132. For illustrative purposes, in the present embodiment, one touch electrode block 13 corresponds to the pixel cells 132 in a pattern of three rows by three columns. Each of the pixel units 132 has three subpixels 133. It is clear that the three subpixels 133 can be of different colors, e.g., each of the pixel units 132 has a red subpixel, a green subpixel, and a blue subpixel.The touch electrode block 13 corresponds to three first wiring areas 134 running along the row direction, wherein the wiring, such as the gate lines, can be provided in the first wiring areas 134, and corresponds to nine second wiring areas 135 running along the column direction, wherein the wiring, such as the data lines, can be provided in the second wiring areas 135. With reference to Fig. 4, if the number of touch signal lines 14 corresponding to the touch electrode block 13 is greater than the number of first wiring areas 134, the subpixels 133 can be blocked by the touch signal lines 14, which affects the display. In this respect, the following embodiments of the present disclosure are provided. For illustration, with reference to Fig. 6, several touch signal lines 14 can also extend beyond the fourth side 104 of the display area 10 (i.e., several touch signal lines 14 can also extend to a fourth non-display area of ​​the display area 10) and be electrically connected to the touch electrode block 13, which corresponds to the display area 10 outside the fourth side 104 of the display area 10 (i.e., in the fourth non-display area of ​​the display area 10). With reference to Figs. 5 and 6, the number of second wiring areas 135 extending along the column direction is greater than the number of first wiring areas 134 extending along the row direction, and in this case, the touch signal lines 14 can be provided in the second wiring areas 135 and extend along the column direction beyond the fourth side 104 of the display area 10.Thus, the array substrate not only prevents the first connection lines 22 from being adversely affected by the touch signal lines 14 due to the increased capacitance between the touch signal lines 14 and the first connection lines 22, but also prevents the touch signal lines 14 from overlapping with the subpixels 133. It is noted that if each of the touch signal control lines 14 extends from the driver chip 21 to outside the third side 103 of the display area 10 (i.e., to the third non-display area of ​​the display area 10), the touch signal lines 14 can also extend to outside the fourth side 104 of the display area 10 and be electrically connected to the corresponding touch electrode block 13 outside the fourth side 104 of the display area 10. For illustrative purposes, with reference to Fig. 7, the array substrate further comprises a switching circuit 142, the touch signal line 14 has several touch wires 143 and several second connection lines 141, each of the several touch wires 143 is electrically connected to the corresponding touch electrode block 13, and each of the second connection lines 141 is electrically connected via the switching circuit 142 to N touch wires 143 from the touch wires, where N is an integer greater than or equal to 1, and the second connection lines 141 are further electrically connected to the driver chip 21, wherein the switching circuit 142 is configured to transmit the touch signal, which is transmitted from each of the second connection lines 141 to the touch electrode block 13, which is electrically connected to the N touch wires 143 corresponding to the second connection line 141.In such an arrangement, the number of secondary connecting wires 141 is less than or equal to the number of touch wires 143 in order to reduce the area occupied by the secondary connecting wires 141, thereby reducing the size of the array substrate frame. The array substrate can be applied to any large-format product, such as a 15-inch product. To illustrate, in combination with Figures 7 and 8, the switching circuit 142 comprises several thin-film transistor groups 1421 and several control lines 1422, wherein each of the thin-film transistor groups 1421 has N thin-film transistors, the control terminals of the N thin-film transistors of each of the thin-film transistor groups are electrically connected to the respective different control lines 1422, the input terminals of the N thin-film transistors of each of the thin-film transistor groups 1421 are electrically connected to one of the second connecting lines 141, and the output terminals of the N thin-film transistors of each of the thin-film transistor groups 1421 are electrically connected to the corresponding touch wires 143, where N is an integer greater than or equal to 1. Alternatively, the number of thin-film transistors in the switching circuit 142 can be the same as the number of touch electrode blocks 13 in the array substrate. As illustrated in Fig. 8, each of the thin-film transistor groups 1421 comprises three thin-film transistors. The operation of the switching circuit 142 is as follows: When the control line 14221 is switched on, the respective touch electrode blocks, which are electrically connected to the touch wiring 1431, the touch wiring 1434 and the touch wiring 1437, are detected; when the control line 14222 is switched on, the respective touch electrode blocks, which are electrically connected to the touch wiring 1432, the touch wiring 1435 and the touch wiring 1438, are detected, and so on, so that the connection and detection of each of the touch electrode blocks is achieved. In combination with Figure 8, the number of control lines 1422 in the switching circuit 142 can be the same as the number of thin-film transistors in one of the thin-film transistor groups 1421. In the present embodiment, the number of control lines 1422 in the switching circuit 142 is not limited. Alternatively, the number of control lines 1422 contained in the switching circuit 142 is equal to the number of touch electrode blocks 13 on the array substrate along the series direction, where the series direction refers to the direction from the second side 102 to the third side 103 of the display area 10 or the direction from the third side 103 to the second side 102 of the display area 10. As shown in Fig. 9, in the array substrate provided by the above embodiment, the non-display area 20 can further comprise a gate driver circuit 23, the display area 10 can also have several scanning lines 15, wherein the scanning lines 15 and the data lines 12 cross each other, and the several scanning lines 15 are each electrically connected to the gate driver circuit 23 via the several third connection lines 24. If the gate driver circuit 23 is provided outside the third side 103 of the display area 10 (i.e., in the third non-display area of ​​the display area 10), at least one of the touch signal lines 14 runs from the driver chip 21 to outside the second side 102 of the display area 10.It is noted that if the gate driver circuit 23 is located outside the second side 102 of the display area 10, at least one of the touch signal lines 14 runs from the driver chip 21 to outside the third side 103 of the display area 10. The touch signal line 14 and the gate driver circuit 23 are therefore arranged opposite to each other. Furthermore, in combination with Figures 8 and 9, the control line 1422 in the switching circuit 142 can be connected to the gate driver circuit 23; that is, the gate driver circuit 23 can provide the control signal for the switching circuit 142. Embodiments of the present disclosure further provide a touch-sensitive display field. The touch-sensitive display field comprises an array substrate. The array substrate used is the array substrate according to the present invention. Embodiments of the present disclosure further provide a touch-indicating device. The touch-indicating device includes a touch-indicating field. The touch-indicating field used in the present disclosure is the touch-indicating field. The touch-indicating device can be a mobile phone, a television, a computer, or other devices with touch and display functions. It is noted that the preferred embodiments and the principles of the technology used in the present disclosure are merely described as above. It should be clear to the person skilled in the art that the present disclosure is not limited to the specific embodiments described herein. The person skilled in the art may make various obvious modifications, adaptations, and alternatives without departing from the scope of protection of the present disclosure. Although the present disclosure is illustrated in detail by means of the embodiments described above, it is not limited to these embodiments and may also include other equivalent embodiments without departing from the concept of the present disclosure. The scope of the present disclosure depends on the appended claims.

Claims

Array substrate comprising: a substrate (01), a display area (10) and a non-display area (20) surrounding the display area (10), the non-display area (20) being provided with a driver chip (21), the display area (10) comprising: multiple data lines (12), each of the multiple data lines (12) being electrically connected to the driver chip (21) via a respective set of multiple first connection lines (22), and multiple touch electrode blocks (13), the multiple touch electrode blocks (13) being electrically connected to the driver chip (21) via multiple touch signal lines (14), wherein in the non-display area (20) the multiple touch signal lines (14) do not overlap with the multiple first connection lines (22) in a direction perpendicular to the substrate (01), the display area (10) being rectangular and the driver chip (21) being provided in a first non-display area.which corresponds to a first side (101) of the display area (10), and at least one of the touch signal lines (14) extends from the driver chip (21) to a second non-display area corresponding to a second side (102), and / or a third non-display area corresponding to a third side (103) of the display area (10), for electrical connection to at least one of the touch electrode blocks (13) in the display area (10), wherein the second side (102) and the third side (103) of the display area (10) are arranged opposite each other, wherein in the first non-display area each of the touch signal lines (14) does not overlap with the multiple first connection lines (22) in the direction perpendicular to the substrate (01), wherein the array substrate further comprises the following: a common electrode layer, wherein the common electrode layer comprises multiple electrode blocks isolated from each other,the electrode blocks are arranged uniformly in a matrix pattern and the electrode blocks are multiplexed as the touch electrode blocks (13), wherein the common signal lines are multiplexed as touch signal lines (14), and each of the touch electrode blocks (13) is electrically connected to the corresponding touch signal lines (14) via a through hole (165) in the insulating layer (02). Array substrate according to claim 1, wherein each of the touch signal lines (14) extends from the driver chip (21) to the second non-display area and / or the third non-display area. Array substrate according to claim 1, wherein the multiple touch signal lines (14) extend over the second side (102) or the third side (103) of the display area (10) and are electrically connected to the corresponding touch electrode blocks (13). Array substrate according to claim 1, wherein the multiple touch signal lines (14) further extend to a fourth non-display area corresponding to a fourth side (104) of the display area (10), extend over the fourth side (104) of the display area (10) and are electrically connected to the corresponding touch electrode blocks (13), wherein the fourth side (104) and the first side (101) of the display area (10) are arranged opposite each other. Array substrate according to claim 1, further comprising a switching circuit (142), wherein the touch signal lines (14) comprise several touch wires (143) and several second connection lines (141), each of the touch wires (143) being electrically connected to one of the several touch electrode blocks (13), each of the second connection lines (141) being electrically connected via the switching circuit (142) to N touch wires from the touch wires (143), the second connection lines (141) being further electrically connected to the driver chip (21), the switching circuit (142) being configured to transmit a touch signal which is transmitted from each of the second connection lines (141) to the corresponding N touch wires, wherein N is an integer greater than or equal to 1. Array substrate according to claim 5, wherein the switching circuit (142) comprises several thin-film transistor groups (1421) and several control lines (1422), each of the thin-film transistor groups (1421) comprising N thin-film transistors, control terminals of the N thin-film transistors of each of the thin-film transistor groups (1421) are each electrically connected to the different control lines (1422), input terminals of the N thin-film transistors of each of the thin-film transistor groups (1421) are electrically connected to one of the second connection lines (141), and output terminals of the N thin-film transistors of each of the thin-film transistor groups (1421) are each electrically connected to the corresponding touch wirings (143). Touch display field with the array substrate according to one of claims 1 to 6. Touch indicator device with the touch indicator field according to claim 7.

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