CN112947803A - Touch module and touch display device - Google Patents
Touch module and touch display device Download PDFInfo
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- CN112947803A CN112947803A CN202110204753.4A CN202110204753A CN112947803A CN 112947803 A CN112947803 A CN 112947803A CN 202110204753 A CN202110204753 A CN 202110204753A CN 112947803 A CN112947803 A CN 112947803A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
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- Position Input By Displaying (AREA)
Abstract
The invention provides a touch module and a touch display device, wherein the touch module comprises: the touch control module comprises a first electrode layer and a second electrode layer, wherein the first electrode layer and the second electrode layer are positioned in an effective touch control area of the touch control module, and the first electrode layer comprises a plurality of first electrodes which are arranged at intervals and extend along a first direction; the second electrode layer is insulated from the first electrode layer and comprises a plurality of second electrodes which are arranged at intervals and extend along a second direction; the first lead is arranged on the outer side of the first edge of the effective touch area; the second lead is arranged on the outer side of the second edge of the effective touch area; each first electrode is electrically connected with the first lead or the second lead, and each second electrode is electrically connected with the first lead or the second lead. In the touch module, the first electrode and the second electrode can be led out of the lead wires through the first edge and the second edge which are opposite to each other, and the lead wires do not need to be arranged on other edges, so that the edge without the lead wires can realize a zero frame.
Description
Technical Field
The invention relates to the technical field of electronic touch control, in particular to a touch control module and a touch control display device.
Background
The comprehensive touch corresponding to the comprehensive screen technology is a popular and leading-edge research technology in the field of electronic touch at present, and has wide application prospect and huge market potential. The full screen technology is the hottest technology in the current market, but the real frameless touch control cannot be realized due to the wiring requirement of the current mutual-capacitive touch screen, and further the real frameless full screen cannot be realized.
Thus, the current full touch technology still needs to be improved.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide a touch module and a touch display device which can realize zero frames on two sides.
In one aspect of the invention, a touch module is provided. According to an embodiment of the present invention, the touch module includes: the first electrode layer is positioned in an effective touch area of the touch module and comprises a plurality of first electrodes which are arranged at intervals and extend along a first direction; the second electrode layer is positioned in the effective touch area, is insulated from the first electrode layer, and comprises a plurality of second electrodes which are arranged at intervals and extend along a second direction, and the first direction is crossed with the second direction; the first lead is arranged on the outer side of the first edge of the effective touch area; the second lead is arranged on the outer side of a second edge of the effective touch area, and the second edge is opposite to the first edge; wherein each of the first electrodes is electrically connected to the first lead or the second lead, and each of the second electrodes is electrically connected to the first lead or the second lead. In the touch module, the first electrode and the second electrode can be led out of the lead wires through the first edge and the second edge which are opposite to each other, and the lead wires do not need to be arranged on other edges, so that the edge without the lead wires can realize a zero frame.
According to an embodiment of the invention, the first electrode and the second electrode are arranged obliquely with respect to the first edge and the second edge.
According to the embodiment of the invention, an acute included angle between the first electrode and the first edge and an acute included angle between the first electrode and the second edge are respectively and independently 30-45 degrees; the acute included angle between the second electrode and the first edge and the acute included angle between the second electrode and the second edge are respectively and independently 30-45 degrees.
According to an embodiment of the invention, the first electrode and the second electrode are each independently configured as a metal mesh.
According to an embodiment of the present invention, the first electrode layer further includes a plurality of first dummy electrodes disposed at intervals and extending along the first direction, and each of the first dummy electrodes is disposed between two adjacent first electrodes and is disposed to be insulated from the first electrodes; the second electrode layer further comprises a plurality of second dummy electrodes which are arranged at intervals and extend along the second direction, and each second dummy electrode is arranged between two adjacent second electrodes and is insulated from the second electrodes.
According to an embodiment of the present invention, the first and second dummy electrodes are each independently configured as a metal mesh.
According to the embodiment of the invention, an acute included angle between two intersected grid lines in the metal grid is 60-85 degrees.
According to the embodiment of the invention, the orthographic projection of the first electrode layer in the thickness direction and the orthographic projection of the second electrode layer in the thickness direction jointly form a grid pattern, and grid lines in the grid pattern are approximately uniformly distributed in the effective touch area.
According to the embodiment of the present invention, orthographic projections of the first electrode and the first virtual electrode in the thickness direction jointly form a first grid pattern, orthographic projections of the second electrode and the second virtual electrode in the thickness direction jointly form a second grid pattern, each grid of the first grid pattern and the second grid pattern is a diamond, wherein the vertex of a diamond grid in the first grid pattern overlaps the center of a diamond grid in the second grid pattern.
In another aspect of the present invention, a touch display device is provided. According to an embodiment of the present invention, the touch display device includes the touch module described above. The touch display device can realize zero frames on two sides and realize better full-screen effect.
Drawings
Fig. 1 is a schematic plan view of a first electrode layer according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of the second electrode layer according to an embodiment of the present invention.
Fig. 3 is a schematic plan view illustrating a touch module according to an embodiment of the invention.
Fig. 4 is a schematic sectional view taken along line a-a of fig. 3.
Fig. 5 is a schematic plan view of a first electrode layer according to another embodiment of the present invention.
Fig. 6 is a schematic plan view of a second electrode layer according to another embodiment of the present invention.
Fig. 7 is a schematic plan view of a first electrode layer according to another embodiment of the present invention.
Fig. 8 is a schematic plan view of a second electrode layer according to another embodiment of the present invention.
Fig. 9 is a schematic plan view illustrating a touch module according to an embodiment of the invention.
Fig. 10 is a schematic cross-sectional view of a touch display device according to an embodiment of the invention.
Fig. 11 is a schematic cross-sectional view of a touch display device according to another embodiment of the invention.
Detailed Description
The following describes embodiments of the present invention in detail. The following examples are illustrative only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.
In one aspect of the invention, a touch module is provided. According to an embodiment of the present invention, referring to fig. 1 to 4, the touch module includes: the first electrode layer 10 is located in the effective touch area 100 of the touch module, and includes a plurality of first electrodes 11 disposed at intervals and extending along a first direction; a second electrode layer 20, wherein the second electrode layer 20 is located in the effective touch area 100, is insulated from the first electrode layer 10, and includes a plurality of second electrodes 21 arranged at intervals and extending along a second direction, and the first direction intersects with the second direction; a first lead 30, wherein the first lead 30 is disposed outside the first side 101 of the effective touch area; a second lead 40, wherein the second lead 40 is disposed outside a second edge 102 of the active touch area, and the second edge 102 is disposed opposite to the first edge 101; wherein each of the first electrodes 11 is electrically connected to the first lead 30 or the second lead 40, and each of the second electrodes 21 is electrically connected to the first lead 30 or the second lead 40. In the touch module, the first electrode and the second electrode can be led out of the leads through the first edge and the second edge which are opposite, and the leads do not need to be arranged on other edges, so that the edge without the leads can realize a zero frame.
According to an embodiment of the present invention, referring to fig. 4, the touch module may further include a substrate 50 on which the first electrode layer 10, the second electrode layer 20, the first lead 30 and the second lead 40 are disposed. Specifically, the specific kind of the substrate is not particularly limited, and may include, but is not limited to, a glass substrate, a polymer substrate, and the like. It can be understood that when the touch module is used in the touch display device, the substrate in the touch module may be set for the touch module alone, or may be a substrate in which other structures in the touch display device are reused as the touch module.
According to an embodiment of the present invention, referring to fig. 4, the touch module may further include an insulating layer 60 disposed between the first electrode layer 10 and the second electrode layer 20. Therefore, the first electrode layer and the second electrode layer can be conveniently arranged in an insulating mode. The specific material and thickness of the insulating layer can be flexibly selected according to the requirement of insulating performance, and the specific material and thickness can be set by referring to the conventional technology, which is not described in detail herein.
According to an embodiment of the present invention, in order to allow both the first electrode and the second electrode to easily draw out a lead through the first side and the second side, referring to fig. 3, the first electrode 11 and the second electrode 21 are disposed to be inclined with respect to the first side 101 and the second side 102. Therefore, the first electrode and the second electrode close to the first edge can be led out through the first edge (namely, are electrically connected with the first lead), and the first electrode and the second electrode close to the second edge can be led out through the second edge (namely, are electrically connected with the second lead), so that the wiring is easier.
According to some embodiments of the present invention, referring to fig. 1, an included angle α between the first electrode 11 and the first side 101 and an acute included angle β between the first electrode 11 and the second side 102 are respectively and independently 30 to 45 degrees (specifically, 30 degrees, 31 degrees, 32 degrees, 33 degrees, 34 degrees, 35 degrees, 36 degrees, 37 degrees, 38 degrees, 39 degrees, 40 degrees, 41 degrees, 42 degrees, 43 degrees, 44 degrees, 45 degrees, etc.). Referring to fig. 2, the acute included angle γ between the second electrode 21 and the first side 101 and the acute included angle δ between the second electrode 21 and the second side 102 are respectively and independently 30 to 45 degrees (specifically, 30 degrees, 31 degrees, 32 degrees, 33 degrees, 34 degrees, 35 degrees, 36 degrees, 37 degrees, 38 degrees, 39 degrees, 40 degrees, 41 degrees, 42 degrees, 43 degrees, 44 degrees, 45 degrees, etc.). In the angle range, all the first electrodes and the second electrodes can be led out of the leads through the first edges and the second edges more easily, the preparation of the first electrodes and the second electrodes is facilitated, and the defects of wire breakage and the like are not easy to generate.
It is understood that the first side and the second side may be arranged in parallel, in which case the included angle α between the first electrode 11 and the first side 101 is equal to the acute included angle β between the first electrode 11 and the second side 102, and the acute included angle γ between the second electrode 21 and the first side 101 is equal to the acute included angle δ between the second electrode 21 and the second side 102. Of course, the first side and the second side may not be parallel to each other as required, and may be flexibly adjusted according to actual use requirements. In the actual use process, the touch display device applied to the touch module is mostly rectangular (including rounded rectangle), and the corresponding effective touch area is also rectangular.
According to the embodiment of the present invention, the specific shape of the first electrode and the second electrode is not particularly limited, and may be a regular elongated shape (see fig. 3), an irregular elongated shape, or the like. In some embodiments, referring to fig. 5 and 6, the first electrode 11 and the second electrode 21 may be configured as a metal mesh. Therefore, when the touch control display device is applied to the touch control display device, the light transmittance is higher, and the display quality is better.
It should be noted that, when the first electrode and the second electrode are configured as a metal mesh, the mesh lines in each of the first electrode and the second electrode are continuously arranged, that is, the grid lines in each first electrode are electrically connected, the grid lines in each second electrode are electrically connected, when the first and second electrodes are disposed obliquely with respect to the first and second sides, the grid lines in the first and second electrodes may also be disposed obliquely with respect to the first and second sides, the acute angle included angle between the grid lines extending in the first direction in the first electrode and the first edge, the acute angle included angle between the grid lines extending in the first direction in the first electrode and the second edge, the acute angle included angle between the grid lines extending in the second direction in the second electrode and the first edge, and the acute angle included angle between the grid lines extending in the second direction in the second electrode and the second edge may be 30-45 degrees independently.
According to the embodiment of the present invention, referring to fig. 7 (where (a) is a schematic plan structure of a first dummy electrode, (b) is a schematic plan structure of a first electrode layer including both the first electrode and the first dummy electrode, and (c) is a partially enlarged view of an area indicated by a circle in (b)), the first electrode layer 10 further includes a plurality of first dummy electrodes 12 disposed at intervals and extending along the first direction, and each of the first dummy electrodes 12 is disposed between two adjacent first electrodes 11 and is insulated from the first electrodes 11; referring to fig. 8 (where (a) is a schematic plan structure of a second dummy electrode, (b) is a schematic plan structure of a second electrode layer including both the second electrode and the second dummy electrode, and (c) is a partial enlarged view of an area indicated by a circle in (b)), the second electrode layer 20 further includes a plurality of second dummy electrodes 22 disposed at intervals and extending along the second direction, and each of the second dummy electrodes 22 is disposed between two adjacent second electrodes 21 and is insulated from the second electrodes 21. Therefore, by arranging the virtual electrodes, the signal crosstalk between the adjacent first electrodes and the signal crosstalk between the adjacent second electrodes can be avoided, and the touch accuracy is higher.
According to the embodiment of the present invention, the specific shape of the first dummy electrode and the second dummy electrode is not particularly limited, and may be a regular long shape, an irregular long shape, or the like. In some embodiments, referring to fig. 7 and 8, the first and second dummy electrodes 12 and 22 may be configured as a metal mesh. Therefore, when the touch control display device is applied to the touch control display device, the light transmittance is higher, and the display quality is better.
According to the embodiment of the present invention, the metal mesh is not particularly required, as long as a rough mesh shape is formed by the intersection of a plurality of mesh lines, and the shape of each mesh may be a triangle, a rectangle, a rhombus, a polygon, and the like. In some embodiments, an acute included angle between two intersecting grid lines of the metal grid is 60 to 85 degrees (specifically, 60 degrees, 62 degrees, 64 degrees, 66 degrees, 68 degrees, 70 degrees, 72 degrees, 74 degrees, 76 degrees, 78 degrees, 80 degrees, 82 degrees, 85 degrees, etc.). Within the degree range, the preparation of the metal grid is convenient, and the probability of poor wire breakage is low. In some specific examples, referring to fig. 7 and 8, each of the metal grids has a diamond shape, and an acute included angle epsilon between two sides of the diamond shape is 60-85 degrees.
According to the embodiment of the present invention, the positional relationship of the electrodes and the dummy electrodes in the first electrode layer and the second electrode layer is not particularly limited as long as the touch function can be effectively realized. In some embodiments, referring to fig. 9, an orthogonal projection of the first electrode layer in the thickness direction and an orthogonal projection of the second electrode layer in the thickness direction together form a grid pattern, and grid lines in the grid pattern are substantially uniformly distributed in the effective touch area. Therefore, when the touch module is applied to the touch display device, the optical performance is better, the consistency of the display effect of the whole display screen is better, the probability of poor display is lower, and the display quality is better.
According to some specific embodiments of the present invention, orthographic projections of the first electrode 11 and the first virtual electrode 12 in the thickness direction together form a first mesh pattern (refer to (b) in fig. 7), orthographic projections of the second electrode 21 and the second virtual electrode 22 in the thickness direction together form a second mesh pattern (refer to (b) in fig. 8), each mesh in the first mesh pattern and the second mesh pattern is a diamond, wherein a diamond mesh vertex a in the first mesh pattern overlaps a center b of a diamond mesh in the second mesh pattern (refer to fig. 9, wherein (a) is a schematic diagram of the first mesh pattern and the second mesh pattern, and (b) is a partially enlarged view of a box portion in (a)). Therefore, the grid lines are uniformly distributed in the effective touch area, and when the grid lines are applied to a touch display device, the optical performance is better, and the display effect is better.
It should be noted that, in the first grid pattern, the grids are not all continuous, and there are gaps between the metal grid of the first electrode and the metal grid of the first virtual electrode (refer to (a) in fig. 7), in the first grid pattern, the description that each grid is a diamond shape is to omit the gaps between the metal grid of the first electrode and the metal grid of the first virtual electrode, that is, a grid formed by a part of the first electrode and a part of the first virtual electrode together is regarded as a diamond shape even though there are gaps on the sides, and thus, description of the second grid pattern is omitted.
According to the embodiment of the present invention, the arrangement of the first and second leads is not particularly required as long as the first and second electrodes can all be led out to be connected to the driving circuit. In some embodiments, referring to fig. 7 and 8, each of the first and second leads 30 and 40 may be configured in two layers, and in particular, a portion of the first lead and the first electrode layer are disposed in the same layer, and another portion of the first lead and the second electrode layer are disposed in the same layer; similarly, one part of the second lead wire and the first electrode layer are arranged in the same layer, and the other part of the second lead wire and the second electrode layer are arranged in the same layer.
In another aspect of the present invention, a touch display device is provided. According to an embodiment of the present invention, the touch display device includes the touch module described above. The touch display device can realize zero frames on two sides and realize better full-screen effect.
According to the embodiment of the present invention, the specific type of the touch display device is not particularly limited, and specifically includes but is not limited to a mobile phone, a tablet computer, a game machine, a television, a wearable device, and the like.
In some embodiments, the touch display device may be an external touch display device (the cross-sectional structure diagram refers to fig. 10), or an embedded touch display device, such as an on-cell touch (the cross-sectional structure diagram refers to fig. 11), an OGS touch, a flexible touch, and the like.
It can be understood that, besides the touch module described above, the touch display device may further include structures and components necessary for a conventional touch display device, such as the display screen 80, the cover plate or the polarizer 80, the driving chip, the housing, necessary circuit structures, and the like.
According to the embodiment of the invention, the specific preparation method of the touch display device is not particularly limited, and can be flexibly selected according to actual conditions. The following describes a method for manufacturing a touch display device according to the present invention by using an in-cell touch display device and a wall-out touch display device as examples.
The external-hanging touch display device (with a schematic structural diagram referring to fig. 10) is specifically prepared as follows:
1) forming a Black Matrix (BM) layer 92 on a substrate (Glass/Film), wherein the main procedures are gluing, exposing and developing to form a lower frame of the required touch display device;
2) an OC0 layer (insulating layer) is manufactured, the main procedures are gluing, exposure and development, and a whole OC0 film layer is formed and used for ESD (electrostatic discharge) protection;
3) manufacturing a first electrode layer on the substrate, firstly sputtering, gluing, exposing, developing and etching to form a first electrode and a first virtual electrode;
4) an OC1 layer (insulating layer) is manufactured, the main procedures are gluing, exposure and development, and a whole OC1 layer is formed and plays a role of the insulating layer;
5) then, manufacturing a second electrode layer, namely firstly, the sputter, gluing, exposing, developing and etching to form a second electrode and a second virtual electrode which are required;
6) the OC2 layer (insulating layer) is manufactured, the main procedures are gluing, exposure and development, and OC2 layer patterns are formed and used for protecting the wiring.
The in-cell touch display device (the schematic structure of fig. 11) is specifically prepared as follows:
1. manufacturing OC0 on a liquid crystal display screen or an OLED display screen, wherein the manufacturing method adopts the process flows of gluing, exposing and developing;
2. and manufacturing an electrode layer, namely firstly coating glue, exposing, developing and etching to form a first electrode and a first virtual electrode.
3. The OC1 layer is manufactured, the main procedures are gluing, exposure and development, and the whole OC1 layer is formed and plays the role of an insulating layer.
4. Manufacturing a second electrode layer on the substrate, namely firstly, sputter, gluing, exposing, developing and etching to form a required second electrode and a second virtual electrode;
5. preparing an OC2 insulating layer, wherein the main procedures comprise gluing, exposing and developing;
in the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A touch module, comprising:
the first electrode layer is positioned in an effective touch area of the touch module and comprises a plurality of first electrodes which are arranged at intervals and extend along a first direction;
the second electrode layer is positioned in the effective touch area, is insulated from the first electrode layer, and comprises a plurality of second electrodes which are arranged at intervals and extend along a second direction, and the first direction is crossed with the second direction;
the first lead is arranged on the outer side of the first edge of the effective touch area;
the second lead is arranged on the outer side of a second edge of the effective touch area, and the second edge is opposite to the first edge;
wherein each of the first electrodes is electrically connected to the first lead or the second lead, and each of the second electrodes is electrically connected to the first lead or the second lead.
2. The touch module of claim 1, wherein the first electrode and the second electrode are disposed obliquely relative to the first edge and the second edge.
3. The touch module of claim 2, wherein an acute angle between the first electrode and the first edge and an acute angle between the first electrode and the second edge are respectively and independently 30-45 degrees;
the acute included angle between the second electrode and the first edge and the acute included angle between the second electrode and the second edge are respectively and independently 30-45 degrees.
4. The touch module of claim 1, wherein the first electrode and the second electrode are each independently configured as a metal mesh.
5. The touch module of claim 1, wherein the first electrode layer further comprises a plurality of first dummy electrodes disposed at intervals and extending along the first direction, and each of the first dummy electrodes is disposed between two adjacent first electrodes and insulated from the first electrodes;
the second electrode layer further comprises a plurality of second dummy electrodes which are arranged at intervals and extend along the second direction, and each second dummy electrode is arranged between two adjacent second electrodes and is insulated from the second electrodes.
6. The touch module of claim 5, wherein the first and second dummy electrodes are each independently configured as a metal mesh.
7. The touch module of claim 4 or 6, wherein an acute angle between two intersecting grid lines in the metal grid is 60-85 degrees.
8. The touch module of claim 4 or 6, wherein an orthogonal projection of the first electrode layer in the thickness direction and an orthogonal projection of the second electrode layer in the thickness direction together form a grid pattern, and grid lines in the grid pattern are substantially uniformly distributed in the effective touch area.
9. The touch module of claim 6, wherein orthographic projections of the first electrodes and the first virtual electrodes in the thickness direction jointly form a first grid pattern, orthographic projections of the second electrodes and the second virtual electrodes in the thickness direction jointly form a second grid pattern, each grid of the first grid pattern and the second grid pattern is a diamond,
wherein the vertices of the diamond-shaped mesh in the first mesh pattern overlap with the center of the diamond-shaped mesh in the second mesh pattern.
10. A touch display device comprising the touch module of any one of claims 1-9.
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| CN202110204753.4A CN112947803A (en) | 2021-02-23 | 2021-02-23 | Touch module and touch display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625904A (en) * | 2021-08-09 | 2021-11-09 | 深圳市华星光电半导体显示技术有限公司 | Touch module and touch display device |
-
2021
- 2021-02-23 CN CN202110204753.4A patent/CN112947803A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113625904A (en) * | 2021-08-09 | 2021-11-09 | 深圳市华星光电半导体显示技术有限公司 | Touch module and touch display device |
| CN113625904B (en) * | 2021-08-09 | 2023-10-17 | 深圳市华星光电半导体显示技术有限公司 | Touch module and touch display device |
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Application publication date: 20210611 |
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