CN114585994A - Touch substrate, touch module and touch display device - Google Patents

Abstract

Translated fromChinese

本公开的一种触控基板、触控模组及触控显示装置，该触控基板可包括衬底(50)和触控感应层；触控感应层形成在衬底(50)上，触控感应层包括多个呈阵列排布的触控电极组(51)；各触控电极组(51)包括沿第一方向间隔排布且相互绝缘的第一触控电极(510)和第二触控电极；各触控电极组(51)中的第一触控电极(510)之间相互绝缘；各触控电极组(51)中的第二触控电极均包括沿第二方向间隔排布、并相互绝缘的子电极(511)，至少两组触控电极组(51)中第二触控电极的子电极(511)之间通过导线(52)一一对应连接；其中，第一方向与第二方向相互垂直；且第一触控电极(510)、第二触控电极、导线(52)位于同一层。该方案可实现整面单层走线，以避免成本过高的情况，以及还可在能够识别多点触控的同时，减少通道数。

A touch substrate, a touch module and a touch display device of the present disclosure, the touch substrate may include a substrate (50) and a touch sensing layer; the touch sensing layer is formed on the substrate (50), and the touch sensing layer is formed on the substrate (50). The control sensing layer comprises a plurality of touch electrode groups (51) arranged in an array; each touch electrode group (51) comprises a first touch electrode (510) and a second touch electrode (510) which are arranged at intervals along the first direction and are insulated from each other touch electrodes; the first touch electrodes (510) in each touch electrode group (51) are insulated from each other; the second touch electrodes in each touch electrode group (51) include rows of spaced rows along the second direction cloth and mutually insulated sub-electrodes (511), the sub-electrodes (511) of the second touch-control electrodes in at least two sets of touch-control electrode groups (51) are connected one-to-one through wires (52); The direction and the second direction are perpendicular to each other; and the first touch electrodes (510), the second touch electrodes and the wires (52) are located on the same layer. This solution can realize single-layer routing on the whole surface to avoid the situation of high cost, and can also reduce the number of channels while being able to recognize multi-touch.

Description

Translated fromChinese

PCT国内申请，说明书已公开。PCT domestic application, the description has been published.

Claims (16)

1. A touch substrate, comprising: a substrate and a touch sensing layer disposed on the substrate, wherein,

   the touch sensing layer comprises a plurality of touch electrode groups arranged in an array, and each touch electrode group comprises a first touch electrode and a second touch electrode which are arranged at intervals along a first direction and are insulated from each other;

   the first touch electrodes in each touch electrode group are mutually insulated;

   the second touch electrodes in each touch electrode group comprise a plurality of sub-electrodes which are arranged at intervals along a second direction and are insulated from each other, and the sub-electrodes of the second touch electrodes in at least two groups of touch electrode groups are connected in a one-to-one correspondence manner through conducting wires;

   wherein the first direction and the second direction are perpendicular to each other.
2. The touch substrate of claim 1, wherein,

   the first touch electrode, the second touch electrode and the lead are located on the same layer.
3. The touch substrate according to claim 1 or 2,

   the number of the sub-electrodes of the second touch electrode in each touch electrode group is equal and is K; k is an integer greater than or equal to 2;

   the ith sub-electrodes of the second touch electrodes in at least two groups of touch electrode groups are connected through a lead, i is more than or equal to 1 and less than or equal to K, and i is an integer.
4. The touch substrate of claim 3, wherein,

   in the first direction, the touch electrode group is provided with M rows; in the second direction, the touch electrode group is provided with N rows; wherein N, M is an integer greater than or equal to 2;

   an ith sub-electrode of a second touch electrode in the touch electrode group in the nth row and the mth column is connected with an ith sub-electrode of a second touch electrode in the touch electrode group in the (n + 1) th row and the (m + 1) th column through a lead; wherein N is more than or equal to 1 and less than N, M is more than or equal to 1 and less than M, and N and M are integers.
5. The touch substrate of claim 4,

   the (n + 1) th row of touch electrode groups are arranged close to the flexible circuit board compared with the nth row of touch electrode groups;

   in a direction from the nth row to the (n + 1) th row, sizes of the sub-electrodes of the second touch electrode in each touch electrode group in the first direction are sequentially reduced.
6. The touch substrate of claim 3, wherein,

   in the first direction, the touch electrode group is provided with M rows; in the second direction, N rows are arranged on the touch electrode group; wherein N, M is an integer greater than or equal to 2;

   the ith sub-electrode of the second touch electrode in the touch electrode group in the nth row and the mth column is connected with the ith sub-electrode of the second touch electrode in the touch electrode group in the (n + 1) th row and the mth column through a lead; wherein N is more than or equal to 1 and less than N, M is more than or equal to 1 and less than or equal to M, and N and M are integers.
7. The touch substrate of claim 6, wherein,

   the (n + 1) th row of touch electrode groups are arranged close to the flexible circuit board compared with the nth row of touch electrode groups;

   in a direction from the nth row to the (n + 1) th row, sizes of the first touch electrodes in the first direction are sequentially reduced.
8. The touch substrate of claim 3, wherein,

   in the first direction, the touch electrode group is provided with M rows; in the second direction, N rows are arranged on the touch electrode group; wherein N is an integer greater than or equal to 2, and M is an integer greater than or equal to 3;

   the ith sub-electrode of the second touch electrode in the touch electrode group in the (n + 1) th row and the (m-1) th column, the ith sub-electrode of the second touch electrode in the touch electrode group in the (n) th row and the (m) th column and the ith sub-electrode of the second touch electrode in the touch electrode group in the (n + 1) th row and the (m + 1) th column are connected through a lead; wherein N is more than or equal to 1 and less than N, M is more than or equal to 2 and less than or equal to M-1, and N and M are integers.
9. The touch substrate of claim 8,

   in the 1 st row, the ith sub-electrode of the second touch electrode in the touch electrode group in the m-1 st column is connected with the ith sub-electrode of the second touch electrode in the touch electrode group in the m +1 st column through a lead;

   wherein N is greater than or equal to 3 and M is greater than or equal to 4.
10. The touch substrate of claim 8 or 9, wherein,

    in the Nth row, the ith sub-electrode of the second touch electrode in the touch electrode group in the mth column is connected with the ith sub-electrode of the second touch electrode in the touch electrode group in the (m + 2) th column through a lead;

    wherein N is greater than or equal to 3 and M is greater than or equal to 4.
11. The touch substrate according to any one of claims 1 to 10,

    a flexible circuit board is arranged on one side of the touch substrate in the second direction; in each touch electrode group, one end, close to the flexible circuit board, of the sub-electrode, closest to the flexible circuit board, of the second touch electrode is flush with one end, close to the flexible circuit board, of the first touch electrode; one end, far away from the flexible circuit board, of the sub-electrode farthest from the flexible circuit board is flush with one end, far away from the flexible circuit board, of the first touch electrode.
12. The touch substrate according to any one of claims 1 to 11,

    in the second direction, the distance between the adjacent touch electrode groups is 6-300 μm;

    in the first direction, the distance between the first touch electrode block and the second touch electrode block is 6-300 μm.
13. The touch substrate of any one of claims 1-12, wherein the first touch electrode and the second touch electrode are both self-contained touch electrodes.
14. The touch substrate of any one of claims 1-12, wherein the first touch electrode is a transmitter electrode and the second touch electrode is a receiver electrode.
15. A touch module, comprising:

    a flexible wiring board having a plurality of pins;

    the touch substrate of any one of claims 1 to 14, wherein each of the first touch electrodes is electrically connected to one of the leads through a lead; the plurality of sub-electrodes connected in sequence through the lead are taken as a whole and are electrically connected with the pin through a lead.
16. A touch display device, comprising a display module and the touch module of claim 15, wherein the touch module is disposed on one side of the display module.

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