CN-122018720-A - Touch module and display device

CN122018720ACN 122018720 ACN122018720 ACN 122018720ACN-122018720-A

Abstract

The application discloses a touch module and a display device, wherein the touch module comprises a substrate, a touch electrode unit comprising a touch electrode, an electromagnetic coil unit comprising a first electromagnetic electrode and a second electromagnetic electrode, wherein the first electromagnetic electrode, the second electromagnetic electrode and the touch electrode are arranged in different layers, or the touch electrode is arranged in the same layer as at least one of the first electromagnetic electrode and the second electromagnetic electrode, and the orthographic projection of the touch electrode unit on the substrate and the orthographic projection of the electromagnetic coil unit on the substrate are staggered. According to the touch module provided by the embodiment of the application, the first electromagnetic electrode and the second electromagnetic electrode are arranged in different layers or at least one of the first electromagnetic electrode and the second electromagnetic electrode is arranged in the same layer as the touch electrode, and the first electromagnetic electrode and the second electromagnetic electrode are integrated into one touch module, and meanwhile, the front projections of the first electromagnetic electrode and the second electromagnetic electrode on the substrate are staggered, so that the distance between the first electromagnetic electrode and the second electromagnetic electrode is increased, the coupling capacitance between the first electromagnetic electrode and the second electromagnetic electrode is reduced, the load of the touch module is effectively reduced, and the use performance of the whole touch module is finally improved.

Inventors

WANG LIHUA
QIU PENGFEI
LU HAIFENG
XING RUBO

Assignees

合肥维信诺科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260123
Priority Date: 20250123

Claims (12)

1. The utility model provides a touch module which characterized in that includes: The touch electrode unit comprises a touch electrode, the electromagnetic coil unit comprises a first electromagnetic electrode and a second electromagnetic electrode, the touch electrode unit and the electromagnetic coil unit are arranged on one side of the substrate, the first electromagnetic electrode, the second electromagnetic electrode and the touch electrode are arranged in different layers, or the touch electrode is arranged on the same layer as at least one of the first electromagnetic electrode and the second electromagnetic electrode, and the front projection of the substrate and the front projection of the electromagnetic coil unit are staggered.
2. The touch module of claim 1, wherein the touch electrode comprises a first touch electrode and a second touch electrode, at least two of the first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode being arranged in the same layer; Preferably, the first electromagnetic electrode and the second electromagnetic electrode are arranged in the same layer; Preferably, the first touch electrode and the second touch electrode are arranged on the same layer; Preferably, one of the first touch electrode and the second touch electrode is arranged on the same layer as one of the first electromagnetic electrode and the second electromagnetic electrode.
3. The touch module of claim 2, wherein the first touch electrode and the second touch electrode comprise a plurality of first functional sub-blocks, the first electromagnetic electrode and the second electromagnetic electrode comprise a plurality of second functional sub-blocks, and the first functional sub-blocks are disposed at a front projection of the substrate and the second functional sub-blocks are disposed at a front projection interval of the substrate.
4. The touch module of claim 3, wherein the first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode are grid routing structures, the first touch electrode and the second touch electrode further comprise a plurality of first conductive portions, the first conductive portions are electrically connected with the first functional sub-block, the grid routing density of the first functional sub-block is greater than the grid routing density of the first conductive portions, and the orthographic projection of the first conductive portions on the substrate and the orthographic projection of the second functional sub-block on the substrate at least partially overlap; preferably, two adjacent first functional sub-blocks are electrically connected through a plurality of first conductive parts; Preferably, the first conductive portion includes a first connection end and a second connection end that are oppositely disposed, the first connection ends of the first conductive portions are disposed at a first edge of one first functional sub-block, and the second connection ends of the first conductive portions are disposed at a second edge of an adjacent first functional sub-block that is oppositely disposed; Preferably, the first electromagnetic electrode and the second electromagnetic electrode further include a plurality of second conductive portions, the second conductive portions electrically connect portions of the second functional sub-blocks, the second functional sub-block grid routing density is greater than the second conductive portion grid routing density, and the orthographic projection of the second conductive portions on the substrate and the orthographic projection of the first functional sub-blocks on the substrate at least partially overlap; preferably, two adjacent second functional sub-blocks are electrically connected through a plurality of second conductive parts; Preferably, the second conductive portion includes a third connection end and a fourth connection end, and a plurality of third connection ends of the second conductive portions are disposed on a third edge of one second functional sub-block, and a plurality of fourth connection ends of the second conductive portions are disposed on a fourth edge of an adjacent second functional sub-block that is disposed opposite to the first edge.
5. The touch module of claim 3, wherein the first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode are grid routing structures, the first electromagnetic electrode and the second electromagnetic electrode further comprise a plurality of extension parts, the extension parts are electrically connected with the second functional sub-blocks, the grid routing density of the extension parts is the same as the grid routing density of the second functional sub-blocks, and the orthographic projection of the extension parts on the substrate and the orthographic projection of the second functional sub-blocks on the substrate are at least partially overlapped; Preferably, the extension part and the first electromagnetic electrode or the second electromagnetic electrode are arranged in the same layer, two adjacent second functional sub-blocks are electrically connected through the extension part, and the second functional sub-blocks and the extension part form an electrode block; preferably, the extension part and the first electromagnetic electrode are arranged in the same layer, and the orthographic projection of the extension part on the substrate and the orthographic projection of the second functional sub-block of the second electromagnetic electrode on the substrate are at least partially overlapped.
6. The touch module of claim 5, wherein the second functional sub-block and the extension of the first electromagnetic electrode comprise a plurality of first branches, the second functional sub-block of the second electromagnetic electrode comprises a plurality of second branches, and an orthographic projection of the first branches on the substrate at least partially overlaps an orthographic projection of the second branches on the substrate; Preferably, the first branch is arranged orthogonal to the second branch.
7. The touch module of claim 3, wherein the first touch electrode and the second touch electrode further comprise a plurality of bridging portions electrically connected between the two first functional sub-blocks of the second touch electrode, the two first functional sub-blocks of the second touch electrode are disposed on both sides of the first functional sub-blocks of the first touch electrode, Or the bridging part is electrically connected and arranged between the two first functional sub-blocks of the second touch electrode, and the two first functional sub-blocks of the first touch electrode are arranged on two sides of the first functional sub-blocks of the second touch electrode; Preferably, the bridge portion is arranged in different layers with the first touch electrode or the second touch electrode, two first functional sub-blocks of the second touch electrode are arranged in the same layer with one first functional sub-block of the first touch electrode, Or the two first functional sub-blocks of the first touch electrode and one first functional sub-block of the second touch electrode are arranged in the same layer; Preferably, the bridge is arranged on the same layer as the first electromagnetic electrode; preferably, the bridge is arranged in the same layer as the second electromagnetic electrode.
8. The touch module of claim 7, wherein the first functional sub-block includes a plurality of third branches, the bridge includes a plurality of fourth branches, and an orthographic projection of the fourth branches on the substrate at least partially overlaps an orthographic projection of the third branches on the substrate; preferably, the third branch is arranged orthogonal to the fourth branch; Preferably, the third branch comprises a first trunk portion and a first connecting portion, the fourth branch comprises a second trunk portion and a second connecting portion, adjacent first trunk portions are connected through the first connecting portion, adjacent second trunk portions are connected through the second connecting portion, the width dimensions of the first trunk portions and the second trunk portions are larger than those of the first connecting portion and the second connecting portion, the orthographic projection of the first trunk portions on the substrate and the orthographic projection of the second trunk portions on the substrate are arranged at intervals, and the orthographic projection of the first connecting portions on the substrate and the orthographic projection of the second connecting portions on the substrate are at least partially overlapped.
9. The touch module of claim 1, further comprising an insulating layer disposed between the touch electrode unit and the electromagnetic coil unit, the touch electrode unit and the electromagnetic coil unit being disposed electrically insulated by the insulating layer; Preferably, the touch module further includes a protective layer, where the protective layer is disposed on a side of the touch electrode unit or the electromagnetic coil unit away from the substrate, and the orthographic projection of the protective layer on the substrate and the orthographic projection of the touch electrode unit on the substrate or the orthographic projection of the electromagnetic coil unit on the substrate at least partially overlap.
10. The utility model provides a touch module which characterized in that includes: The touch electrode unit comprises a touch electrode, the electromagnetic coil unit comprises a first electromagnetic electrode and a second electromagnetic electrode, the touch electrode unit and the electromagnetic coil unit are arranged on one side of the substrate, the first electromagnetic electrode, the second electromagnetic electrode and the touch electrode are arranged in different layers, or the touch electrode is arranged in the same layer as at least one of the first electromagnetic electrode and the second electromagnetic electrode; At least one of the touch electrode units and the electromagnetic coil units is distributed in an array to form a grid framework, and the other is at least partially filled in a gap formed by the inner periphery of the grid framework, or the touch electrode units and the electromagnetic coil units are distributed in an array, and the touch electrode units and the electromagnetic coil units are staggered in the orthographic projection of the substrate.
11. The touch module of claim 10, wherein the touch electrodes comprise first touch electrodes and second touch electrodes, the first touch electrodes and the second touch electrodes are staggered and arranged along a first direction, the second touch electrodes are arranged along a second direction, and the first direction intersects the second direction; Preferably, the first touch electrode and the second touch electrode include a plurality of first functional sub-blocks, the first electromagnetic electrode and the second electromagnetic electrode include a plurality of second functional sub-blocks, the first functional sub-blocks and the second functional sub-blocks are arranged at the orthographic projection interval of the substrate, and meanwhile, the first functional sub-blocks are arranged along the first direction and the second direction, and the second functional sub-blocks are arranged along the first direction and the second direction; preferably, the first electromagnetic electrode and the second electromagnetic electrode further comprise a plurality of guides electrically connecting portions of the second functional sub-blocks; Preferably, the second functional sub-block includes a first boundary and a third boundary disposed opposite to each other in the first direction, the first boundary of one of the second functional sub-blocks being electrically connected to the third boundary of another adjacent second functional sub-block arranged in the first direction through the guide portion; preferably, the first electromagnetic electrode and the second electromagnetic electrode further comprise a plurality of extensions, the extensions electrically connecting portions of the second functional sub-blocks; preferably, the second functional sub-block further includes a second boundary and a fourth boundary disposed opposite to each other in the second direction, and the second boundary of one of the second functional sub-blocks is electrically connected to the fourth boundary of another adjacent second functional sub-block arranged in the second direction through the extension portion.
12. A display device comprising the touch module of any one of claims 1 to 11.

Description

Touch module and display device Cross Reference to Related Applications The present application claims priority from chinese patent application 202510121166.7 entitled "touch module and display device" filed on 1 month 23 2025, the entire contents of which are incorporated herein by reference. Technical Field The application relates to the technical field of display, in particular to a touch module and a display device. Background At present, the requirements of a display panel on touch operation are higher and higher, the touch panel mainly comprises two types of capacitive touch control and electromagnetic touch control, in order to enable a capacitive touch control screen to be compatible with the electromagnetic touch control operation, an electromagnetic touch control functional element is integrated inside the capacitive touch control screen, but the electromagnetic touch control functional element and the capacitive touch control screen are too close in distance, induction and mutual interference are caused, load is too large, and service performance is required to be improved. Disclosure of Invention The embodiment of the application provides a touch module and a display device, which can improve the integration level of the touch module, reduce the thickness of the touch module, reduce the coupling capacitance between a touch electrode unit and an electromagnetic coil unit, reduce the load of the touch module and improve the service performance of the touch module. According to the embodiment of the application, the touch module comprises a substrate, a touch electrode unit and an electromagnetic coil unit, wherein the touch electrode unit comprises a touch electrode, the electromagnetic coil unit comprises a first electromagnetic electrode and a second electromagnetic electrode, the touch electrode unit and the electromagnetic coil unit are arranged on one side of the substrate, the first electromagnetic electrode and the second electromagnetic electrode are arranged in different layers with the touch electrode, or the touch electrode is arranged on the same layer with at least one of the first electromagnetic electrode and the second electromagnetic electrode, and the orthographic projection of the touch electrode unit on the substrate and the orthographic projection of the electromagnetic coil unit on the substrate are staggered. According to the touch module provided by the embodiment of the first aspect of the application, the first electromagnetic electrode and the second electromagnetic electrode are arranged in different layers or at least one of the first electromagnetic electrode and the second electromagnetic electrode is arranged in the same layer as the touch electrode, so that the touch electrode unit and the electromagnetic coil unit are integrated into one touch module, and meanwhile, the distance between the touch electrode unit and the electromagnetic coil unit is increased by staggering the orthographic projection of the touch electrode unit and the electromagnetic coil unit on the substrate, and the coupling capacitance between the touch electrode unit and the electromagnetic coil unit is reduced, so that the load of the touch module is effectively reduced, and the use performance of the touch module is finally improved. According to an aspect of the embodiment of the present application, the touch electrode includes a first touch electrode and a second touch electrode, and at least two of the first touch electrode, the second touch electrode, the first electromagnetic electrode, and the second electromagnetic electrode are disposed on the same layer. According to one aspect of an embodiment of the application, the first electromagnetic electrode is co-layer with the second electromagnetic electrode. According to an aspect of the embodiment of the present application, the first touch electrode and the second touch electrode are disposed on the same layer. According to an aspect of the embodiment of the present application, one of the first touch electrode and the second touch electrode is disposed on the same layer as one of the first electromagnetic electrode and the second electromagnetic electrode. According to an aspect of the embodiment of the present application, the first touch electrode and the first electromagnetic electrode are disposed on the same layer. According to an aspect of the embodiment of the present application, the second touch electrode and the second electromagnetic electrode are arranged on the same layer. According to an aspect of the embodiment of the present application, the first touch electrode is disposed on the same layer as one of the first electromagnetic electrode and the second electromagnetic electrode, and the second touch electrode is disposed on the same layer as the other of the first electromagnetic electrode and the second electromagnetic electrode. According to an aspect of the embodiment of the present application, the first touch ele