CN-115357144-B - Touch control device

CN115357144BCN 115357144 BCN115357144 BCN 115357144BCN-115357144-B

Abstract

A touch device comprises a substrate, a plurality of first capacitive touch electrodes, a plurality of first electromagnetic touch electrodes, a plurality of second capacitive touch electrodes, a plurality of second electromagnetic touch electrodes, a plurality of first capacitive touch wires, a plurality of first electromagnetic touch wire pairs, a plurality of second capacitive touch wires and a plurality of second electromagnetic touch wire pairs. The substrate has a first peripheral region, a second peripheral region, a third peripheral region and a fourth peripheral region. The plurality of first capacitive touch electrodes and the plurality of first electromagnetic touch electrodes are arranged in a first direction. The plurality of second capacitive touch electrodes and the plurality of second electromagnetic touch electrodes are arranged in a second direction. The plurality of first capacitive touch traces directly extend from the fourth peripheral region to the first peripheral region. The plurality of first electromagnetic touch control wire pairs directly extend from the third peripheral area to the first peripheral area. The plurality of second capacitive touch wirings sequentially extend from the second peripheral region to the fourth peripheral region and the first peripheral region. The plurality of second electromagnetic touch control wire pairs directly extend on the first peripheral area.

Inventors

LIN WEILIN
JIAN YUFENG

Assignees

友达光电股份有限公司

Dates

Publication Date: 20260508
Application Date: 20220902
Priority Date: 20220328

Claims (9)

1. A touch device, comprising: the substrate is provided with a working area, a first peripheral area, a second peripheral area, a third peripheral area and a fourth peripheral area, wherein the first peripheral area, the second peripheral area, the third peripheral area and the fourth peripheral area are positioned outside the working area, the first peripheral area and the second peripheral area are respectively positioned at two opposite sides of the working area, the third peripheral area is connected between the first peripheral area and the second peripheral area, and the fourth peripheral area is arranged opposite to the third peripheral area and connected between the first peripheral area and the second peripheral area; an electronic element arranged in the first peripheral region of the substrate; The plurality of first capacitive touch electrodes are arranged in the working area of the substrate and are arranged in a first direction; The first electromagnetic touch electrodes are arranged in the working area of the substrate and are arranged in the first direction, wherein the first capacitive touch electrodes are separated from the first electromagnetic touch electrodes, and each first capacitive touch electrode is surrounded by a corresponding first electromagnetic touch electrode; the insulating layer is arranged on the first capacitive touch electrodes and the first electromagnetic touch electrodes; The plurality of second capacitive touch electrodes are arranged on the insulating layer, are positioned in the working area of the substrate and are arranged in a second direction, wherein the first direction and the second direction are staggered; The second electromagnetic touch electrodes are arranged on the insulating layer, are positioned in the working area of the substrate and are arranged in the second direction, wherein the second capacitive touch electrodes are separated from the second electromagnetic touch electrodes, and each second capacitive touch electrode is surrounded by a corresponding second electromagnetic touch electrode; The first capacitive touch wirings are respectively and electrically connected to the first capacitive touch electrodes, wherein the first capacitive touch wirings pulled out from the fourth peripheral region are structurally connected with the first capacitive touch electrodes, and the first capacitive touch wirings directly extend from the fourth peripheral region to the first peripheral region so as to be electrically connected to the electronic element; A plurality of first electromagnetic touch control wire pairs, wherein the plurality of first electromagnetic touch control wires of each first electromagnetic touch control wire pair are respectively and electrically connected with two ends of a corresponding first electromagnetic touch control electrode, the first electromagnetic touch wire pairs pulled out from the third peripheral area are structurally connected with the first electromagnetic touch electrodes, and the first electromagnetic touch wire pairs directly extend from the third peripheral area to the first peripheral area so as to be electrically connected to the electronic element; A plurality of second capacitive touch traces electrically connected to the second capacitive touch electrodes, respectively, wherein the second capacitive touch traces pulled out from the second peripheral region are structurally connected to the second capacitive touch electrodes, and the second capacitive touch traces sequentially extend from the second peripheral region to the fourth peripheral region and the first peripheral region to be electrically connected to the electronic device, and The plurality of second electromagnetic touch control wire pairs are respectively and electrically connected with two ends of a corresponding second electromagnetic touch control electrode, the second electromagnetic touch control wire pairs pulled out from the first peripheral area are structurally connected with the second electromagnetic touch control electrodes, and the second electromagnetic touch control wire pairs directly extend on the first peripheral area to be electrically connected to the electronic element.
2. The touch device of claim 1, wherein each of the first electromagnetic touch electrodes has a plurality of first main portions respectively located at opposite sides of a corresponding one of the first capacitive touch electrodes and a first bending portion connecting the first main portions, and the first bending portion and the corresponding one of the first capacitive touch traces cross each other on the fourth peripheral region.
3. The touch device of claim 2, wherein at least a portion of the first main portions of each of the first electromagnetic touch electrodes, the first curved portion of each of the first electromagnetic touch electrodes, and a first electromagnetic touch trace of a first electromagnetic touch trace pair electrically connected to the first electromagnetic touch electrode belong to a first conductive layer, the first capacitive touch trace has a first crossover portion located in the fourth peripheral region, the first crossover portion of the first capacitive touch trace belongs to a second conductive layer, and the insulating layer is disposed between the first conductive layer and the second conductive layer.
4. The touch device of claim 2, wherein each of the second electromagnetic touch electrodes has a plurality of second main portions respectively located at opposite sides of a corresponding one of the second capacitive touch electrodes and a second bending portion connecting the second main portions, and the second bending portion and the corresponding one of the second capacitive touch traces cross each other on the second peripheral region.
5. The touch device of claim 4, wherein the second capacitive touch trace has a second crossing portion located in the second peripheral region, the second crossing portion of the second capacitive touch trace belongs to a first conductive layer, the second main portions of each of the second electromagnetic touch electrodes, the second curved portion of each of the second electromagnetic touch electrodes, and at least a portion of one of the second electromagnetic touch traces of a second pair of the second electromagnetic touch traces electrically connected to the second electromagnetic touch electrodes belong to a second conductive layer, and the insulating layer is disposed between the first conductive layer and the second conductive layer.
6. The touch device of claim 1, wherein the first capacitive touch electrodes are arranged at a first pitch in the first direction, the first electromagnetic touch electrodes are arranged at a second pitch in the first direction, and the first pitch is substantially equal to the second pitch.
7. The touch device of claim 6, wherein the second capacitive touch electrodes are arranged at a third pitch in the second direction, the second electromagnetic touch electrodes are arranged at a fourth pitch in the second direction, and the third pitch is substantially equal to the fourth pitch.
8. The touch device of claim 1, wherein the insulating layer is located between a first conductive layer and a second conductive layer, each of the first electromagnetic touch traces comprises a first portion and a second portion respectively belonging to the first conductive layer and the second conductive layer, and the first portion and the second portion of each of the first electromagnetic touch traces are connected in parallel.
9. The touch device of claim 8, wherein each of the second electromagnetic touch traces comprises a first portion and a second portion respectively belonging to the first conductive layer and the second conductive layer, and the first portion and the second portion of each of the second electromagnetic touch traces are connected in parallel.

Description

Touch control device Technical Field The present invention relates to an electronic device, and more particularly, to a touch device. Background An active capacitive stylus is one of the mainstream touch tools at present. The active capacitance pen is easy to be influenced by display noise because of the relation of communication protocol and needs to use specific signal frequency, and is unfavorable to be used together with a high-resolution display panel. Generally, an electromagnetic stylus needs to be used in combination with an electromagnetic sensing plate. The electromagnetic sensing plate needs to be made of low-resistance metal to manufacture the induction coil or the signal transmitting coil, so that the electromagnetic sensing plate is mainly externally attached at present, and the externally attached electromagnetic sensing plate is arranged at the back of the display panel, so that the thickness of the whole module can be increased. Therefore, how to integrate the capacitance and electromagnetic touch functions into the display panel to reduce the thickness of the whole module and realize good capacitance and electromagnetic touch is a great challenge for the developer. Disclosure of Invention The invention provides a touch device, which has excellent capacitive and electromagnetic touch performance. The touch device comprises a substrate, an electronic element, a plurality of first capacitive touch electrodes, a plurality of first electromagnetic touch electrodes, an insulating layer, a plurality of second capacitive touch electrodes, a plurality of second electromagnetic touch electrodes, a plurality of first capacitive touch wires, a plurality of first electromagnetic touch wire pairs, a plurality of second capacitive touch wires and a plurality of second electromagnetic touch wire pairs. The substrate is provided with a working area, a first peripheral area, a second peripheral area, a third peripheral area and a fourth peripheral area, wherein the first peripheral area, the second peripheral area, the third peripheral area and the fourth peripheral area are positioned outside the working area, the first peripheral area and the second peripheral area are respectively positioned at two opposite sides of the working area, the third peripheral area is connected between the first peripheral area and the second peripheral area, and the fourth peripheral area is arranged opposite to the third peripheral area and is connected between the first peripheral area and the second peripheral area. The electronic element is arranged in the first peripheral area of the substrate. The plurality of first capacitive touch electrodes are arranged in the working area of the substrate and are arranged in a first direction. The plurality of first electromagnetic touch electrodes are arranged in the working area of the substrate and are arranged in the first direction. The plurality of first capacitive touch electrodes are separated from the plurality of first electromagnetic touch electrodes, and each first capacitive touch electrode is surrounded by a corresponding one of the first electromagnetic touch electrodes. The insulating layer is arranged on the plurality of first capacitive touch electrodes and the plurality of first electromagnetic touch electrodes. The plurality of second capacitive touch electrodes are arranged on the insulating layer, are positioned in the working area of the substrate and are arranged in a second direction, wherein the first direction and the second direction are staggered. The plurality of second electromagnetic touch electrodes are arranged on the insulating layer, are positioned in the working area of the substrate and are arranged in the second direction. The plurality of second capacitive touch electrodes are separated from the plurality of second electromagnetic touch electrodes, and each second capacitive touch electrode is surrounded by a corresponding one of the second electromagnetic touch electrodes. The plurality of first capacitive touch wirings are electrically connected to the plurality of first capacitive touch electrodes respectively. The first capacitive touch wirings are structurally connected with the first capacitive touch electrodes in the fourth peripheral area, and the first capacitive touch wirings directly extend from the fourth peripheral area to the first peripheral area so as to be electrically connected to the electronic element. The plurality of first electromagnetic touch wires of each first electromagnetic touch wire pair are respectively and electrically connected with two ends of a corresponding first electromagnetic touch electrode. The plurality of first electromagnetic touch wires are structurally connected with the plurality of first electromagnetic touch electrodes for the third peripheral area. The plurality of first electromagnetic touch wire pairs directly extend from the third peripheral region to the first peripheral region so as to be