CN219842680U - Capacitive screen structure, touch display module and display device - Google Patents
Capacitive screen structure, touch display module and display device Download PDFInfo
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- CN219842680U CN219842680U CN202321355308.9U CN202321355308U CN219842680U CN 219842680 U CN219842680 U CN 219842680U CN 202321355308 U CN202321355308 U CN 202321355308U CN 219842680 U CN219842680 U CN 219842680U
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- screen structure
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- 239000000758 substrate Substances 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000000059 patterning Methods 0.000 description 3
- 238000003698 laser cutting Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Abstract
The utility model provides a capacitive screen structure, a touch display module and a display device, wherein the capacitive screen structure comprises: the first connecting unit comprises a plurality of first connecting pieces at intervals, and the first connecting pieces are electrically connected with the first electrodes in a one-to-one correspondence manner; the second connecting unit comprises a plurality of second connecting pieces at intervals, and the second connecting pieces are electrically connected with the second electrodes in a one-to-one correspondence manner; the first flexible circuit board comprises a plurality of first bonding pads and a plurality of first leads, the first bonding pads and the first connecting pieces are bound together in a one-to-one correspondence manner, and each first lead is connected with the plurality of first bonding pads; the second flexible circuit board comprises a plurality of second bonding pads and a plurality of second wires, the second bonding pads and the second connecting pieces are bound together in a one-to-one correspondence mode, and each second wire is connected with the plurality of second bonding pads. The capacitive screen structures used for the different signal paths are compatible and less costly.
Description
Technical Field
The utility model relates to the technical field of display, in particular to a capacitive screen structure, a touch display module and a display device.
Background
The electrode pattern 100 (refer to fig. 1) of the conventional capacitive touch screen is generally composed of a plurality of lateral electrodes and longitudinal electrodes, the shape of the electrode pattern is diamond or bar, then each electrode is led out of the conductive wire 110 from the edge, and the conductive wire 110 is connected with the flexible circuit board 120 in a binding manner. One conductive line 110 is connected to one electrode in a one-to-one correspondence.
Referring to fig. 2, the electrode pattern includes a lateral electrode 220 and a longitudinal electrode 210, two adjacent lateral electrodes 220 are connected in parallel, two adjacent longitudinal electrodes 210 are connected in parallel, the parallel-connected lateral electrodes 220 are led out of the conductive line, and the parallel-connected longitudinal electrodes 210 are led out of the conductive line.
The disadvantages of the prior art are: the patterning of the electrode pattern and the conductive wire requires corresponding auxiliary process jigs such as a screen plate and a die, and after the auxiliary process jigs such as the screen plate and the die are determined, the patterns of the electrode pattern and the conductive wire are fixed. If the electrode pattern and the pattern of the conductive wire need to be modified, new auxiliary process jigs such as a screen and a mold need to be redesigned and manufactured. The whole module equivalent to the capacitive screen structure needs product item customization, and the cost is high. The capacitive screen structures used for the different signal paths are not compatible.
Disclosure of Invention
In view of this, the present utility model provides a capacitive screen structure, a touch display module and a display device, so as to solve the problems of incompatibility and high cost of capacitive screen structures used for different signal channels in the prior art.
The utility model provides a capacitive screen structure, comprising: a substrate; the electrode unit is positioned on one side of part of the substrate and comprises a plurality of first electrodes which are arranged at intervals along a first direction and a plurality of second electrodes which are arranged at intervals along a second direction, and the first electrodes are isolated from the second electrodes; the first connecting units are positioned on one side of part of the substrate, are positioned on the side parts of the electrode units in the second direction, and comprise a plurality of first connecting pieces at intervals, and the first connecting pieces are electrically connected with the first electrodes in a one-to-one correspondence manner; the second connecting units are positioned on one side of part of the substrate, are positioned on the side parts of the electrode units in the first direction, and comprise a plurality of second connecting pieces at intervals, and the second connecting pieces are electrically connected with the second electrodes in a one-to-one correspondence manner; the first flexible circuit board comprises a plurality of first bonding pads arranged at intervals and a plurality of first leads arranged at intervals, the first bonding pads and the first connecting pieces are bound together in a one-to-one correspondence manner, and each first lead is connected with the plurality of first bonding pads; the second flexible circuit board comprises a plurality of second bonding pads arranged at intervals and a plurality of second leads arranged at intervals, the second bonding pads and the second connecting pieces are bound together in a one-to-one correspondence mode, and each second lead is connected with the plurality of second bonding pads.
Optionally, each first wire is connected with two first bonding pads; or, each first wire is connected with three first bonding pads; or, each first wire is connected with four first bonding pads.
Optionally, each second wire is connected with two second bonding pads; or, each second wire is connected with three second bonding pads; or, each second wire is connected with four second bonding pads.
Optionally, the first connection member has a first connection end and a second connection end opposite to each other, the first connection end is electrically connected to the first electrode, and the second connection end is bound to the first bonding pad; the second connecting piece is provided with a third connecting end and a fourth connecting end which are opposite, the third connecting end is electrically connected with the second electrode, and the fourth connecting end is bound with the second bonding pad.
Optionally, each first wire includes a first main wire and a plurality of first intermediate connection wires, one end of each first intermediate connection wire is connected with the first main wire, and the other end of each first intermediate connection wire is connected with the first bonding pads in a one-to-one correspondence; each second wire comprises a second main wire and a plurality of second intermediate connecting wires, one end of each second intermediate connecting wire is connected with the corresponding second main wire, and the other end of each second intermediate connecting wire is connected with the corresponding second bonding pads in a one-to-one correspondence manner.
Alternatively, the electrode unit includes only the first electrode and the second electrode, and the first electrode and the second electrode are located at different layers.
Optionally, the first electrode and the second electrode are arranged on the same layer, the first electrode includes a plurality of second sub-electrodes arranged in a second direction, and the electrode unit further includes a bridge electrode, where the bridge electrode is connected to an adjacent second sub-electrode in the first electrode and is electrically isolated from the second electrode.
The utility model also provides a touch display module, which comprises: a display screen; the capacitive screen structure is attached to the display screen.
The utility model also provides a display device comprising the touch display module.
The technical scheme provided by the utility model has the following effects:
according to the capacitive screen structure provided by the technical scheme of the utility model, the first connecting pieces are electrically connected with the first electrodes in a one-to-one correspondence manner, the first bonding pads are bound together in a one-to-one correspondence manner, and each first lead is connected with a plurality of first bonding pads, so that the first electrodes are electrically connected with a plurality of first bonding pads in a corresponding manner. The second connecting pieces are electrically connected with the second electrodes in a one-to-one correspondence manner, the second bonding pads are bound together in a one-to-one correspondence manner, and each second lead is connected with a plurality of second bonding pads, so that the second electrodes are electrically connected with a plurality of second bonding pads in a corresponding manner. The number of the signal channels is changed by adjusting the number of the first bonding pads connected with any one first wire and the number of the second bonding pads connected with any one second wire, so that the electrode units complete compatible design of different signal channels. Because the design does not need to carry out the design of re-patterning on the electrode unit, auxiliary process jigs such as a screen, a mould and the like do not need to be re-designed for the electrode unit, and therefore, the cost can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a capacitive screen structure in the prior art;
FIG. 2 is a block diagram of another prior art capacitive screen configuration;
FIG. 3 is a block diagram of a capacitive screen structure according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram showing the connection of a first flexible circuit board and a first connector according to an embodiment of the utility model;
fig. 5 is a schematic diagram illustrating connection between a second flexible circuit board and a second connector according to an embodiment of the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
The present embodiment provides a capacitive screen structure, referring to fig. 3, 4 and 5, including:
a substrate 300;
an electrode unit located at one side of a part of the substrate 300, where the electrode unit includes a plurality of first electrodes 310 arranged at intervals along a first direction Y and a plurality of second electrodes 320 arranged at intervals along a second direction X, and the first electrodes 310 are isolated from the second electrodes 320;
the first connection units are positioned at one side of a part of the substrate 300, the first connection units are positioned at the side parts of the electrode units in the second direction X, the first connection units comprise a plurality of first connection pieces 410 at intervals, and the first connection pieces 410 are electrically connected with the first electrodes 310 in a one-to-one correspondence manner;
the second connection units are positioned on one side of part of the substrate 300, are positioned on the side parts of the electrode units in the first direction Y, and comprise a plurality of second connection pieces 420 at intervals, and the second connection pieces 420 are electrically connected with the second electrodes 320 in a one-to-one correspondence manner;
the first flexible circuit board 500, wherein the first flexible circuit board 500 comprises a plurality of first bonding pads 511 arranged at intervals and a plurality of first wires 512 arranged at intervals, the first bonding pads 511 and the first connecting pieces 410 are bound together in a one-to-one correspondence manner, and each first wire 512 is connected with a plurality of first bonding pads 511;
the second flexible circuit board 600, the second flexible circuit board 600 includes a plurality of second bonding pads 611 disposed at intervals and a plurality of second wires 612 disposed at intervals, the second bonding pads 611 are bound together in a one-to-one correspondence with the second connectors 420, and each of the second wires 612 is connected with the plurality of second bonding pads 611.
In this embodiment, the number of signal channels is changed by adjusting the number of first pads 511 connected to any one of the first wires 512 and the number of second pads 611 connected to any one of the second wires 612, so that the electrode unit completes compatible designs of different signal channels. Because the design does not need to carry out the design of re-patterning on the electrode unit, auxiliary process jigs such as a screen, a mould and the like do not need to be re-designed for the electrode unit, and therefore, the cost can be reduced.
In one embodiment, the first direction Y and the second direction X are perpendicular.
The adjacent first connectors 410 have a first cutting line 411 therebetween, and the first cutting line 411 is, for example, a first laser cutting line. A second cutting line 421 is disposed between the adjacent second connectors 420, and the second cutting line 421 is, for example, a second laser cutting line.
The first connector 410 has opposite first and second connection terminals electrically connected to the first electrode 310, and the second connection terminal is bonded to the first pad 511; the second connection member 420 has opposite third and fourth connection terminals electrically connected to the second electrode 320, and the fourth connection terminal is bonded to the second pad 611.
Referring to fig. 4, each of the first wires 512 includes a first main wire 512a and a plurality of first intermediate connection wires 512b, one end of the first intermediate connection wire 512b is connected to the first main wire 512a, and the other end of the first intermediate connection wire 512b is connected to the first bonding pads 511 in a one-to-one correspondence.
Referring to fig. 5, each of the second conductive lines 612 includes a second main conductive line 612a and a plurality of second intermediate connection lines 612b, one end of each second intermediate connection line 612b is connected to the second main conductive line 612a, and the other end of each second intermediate connection line 612b is connected to the second bonding pad 611 in a one-to-one correspondence.
In one embodiment, each of the first wires is connected to two first pads; or, each first wire is connected with three first bonding pads; or, each first wire is connected with four first bonding pads. In another embodiment, each of the second wires is connected to two second pads; or, each second wire is connected with three second bonding pads; or, each second wire is connected with four second bonding pads.
In some embodiments, the first electrode 310 and the first connection unit are located at different layers, and a first insulating layer is further provided between the first electrode 310 and the first connection unit; the first connection member is electrically connected to the first electrode 310 through a first via plug penetrating the first insulating layer.
In some embodiments, the second electrode 320 and the second connection unit are located at different layers, and a second insulating layer is further provided between the second electrode and the second connection unit; the second connection member 420 is electrically connected to the second electrode 320 through a second via plug penetrating the second insulating layer.
In one embodiment, the electrode unit comprises only a first electrode and a second electrode, the first electrode and the second electrode being located in different layers.
In another embodiment, the first electrode and the second electrode are arranged in the same layer, the first electrode comprises a plurality of second sub-electrodes arranged in a second direction, the electrode unit further comprises a bridge electrode, and the bridge electrode is connected with the adjacent second sub-electrodes in the first electrode and is electrically isolated from the second electrode.
In one embodiment, the material of the first connector 410 comprises silver and the material of the second connector 420 comprises silver.
The utility model also provides a touch display module, which comprises: a display screen; the capacitive screen structure is attached to the display screen.
The display screen comprises a liquid crystal display screen or an OLED display screen. In this embodiment, the display screen is taken as a liquid crystal display screen as an example. The display screen may be any other type of display screen, without limitation.
The touch display module further comprises: and the cover plate is positioned on one side of the capacitive screen structure, which is away from the display screen.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (9)
1. A capacitive screen structure comprising:
a substrate;
the electrode unit is positioned on one side of part of the substrate and comprises a plurality of first electrodes which are arranged at intervals along a first direction and a plurality of second electrodes which are arranged at intervals along a second direction, and the first electrodes are isolated from the second electrodes;
the first connecting units are positioned on one side of part of the substrate, are positioned on the side parts of the electrode units in the second direction, and comprise a plurality of first connecting pieces at intervals, and the first connecting pieces are electrically connected with the first electrodes in a one-to-one correspondence manner;
the second connecting units are positioned on one side of part of the substrate, are positioned on the side parts of the electrode units in the first direction, and comprise a plurality of second connecting pieces at intervals, and the second connecting pieces are electrically connected with the second electrodes in a one-to-one correspondence manner;
the first flexible circuit board comprises a plurality of first bonding pads arranged at intervals and a plurality of first leads arranged at intervals, the first bonding pads and the first connecting pieces are bound together in a one-to-one correspondence manner, and each first lead is connected with the plurality of first bonding pads;
the second flexible circuit board comprises a plurality of second bonding pads arranged at intervals and a plurality of second leads arranged at intervals, the second bonding pads and the second connecting pieces are bound together in a one-to-one correspondence mode, and each second lead is connected with the plurality of second bonding pads.
2. The capacitive screen structure of claim 1, wherein each of the first wires is connected to two first pads; or, each first wire is connected with three first bonding pads; or, each first wire is connected with four first bonding pads.
3. The capacitive screen structure of claim 1, wherein each of the second wires is connected to two second pads; or, each second wire is connected with three second bonding pads; or, each second wire is connected with four second bonding pads.
4. The capacitive screen structure of claim 1, wherein the first connector has opposing first and second connection ends, the first connection end being electrically connected to the first electrode, the second connection end being bonded to the first bonding pad; the second connecting piece is provided with a third connecting end and a fourth connecting end which are opposite, the third connecting end is electrically connected with the second electrode, and the fourth connecting end is bound with the second bonding pad.
5. The capacitive screen structure according to claim 1, wherein each first conductive line comprises a first main conductive line and a plurality of first intermediate connection lines, one end of each first intermediate connection line is connected with the first main conductive line, and the other end of each first intermediate connection line is connected with the first bonding pad in a one-to-one correspondence manner;
each second wire comprises a second main wire and a plurality of second intermediate connecting wires, one end of each second intermediate connecting wire is connected with the corresponding second main wire, and the other end of each second intermediate connecting wire is connected with the corresponding second bonding pads in a one-to-one correspondence manner.
6. A capacitive screen structure according to claim 1, wherein the electrode unit comprises only a first electrode and a second electrode, the first electrode and the second electrode being located in different layers.
7. A capacitive screen structure according to claim 1, wherein the first and second electrodes are arranged in the same layer, the first electrode comprising a number of second sub-electrodes arranged in a second direction, the electrode unit further comprising a bridge electrode connecting adjacent ones of the first sub-electrodes and being electrically isolated from the second electrodes.
8. The utility model provides a touch-control display module assembly which characterized in that includes: a display screen; and a capacitive screen structure as claimed in any one of claims 1 to 7, the capacitive screen structure being in engagement with the display screen.
9. A display device, comprising: the touch display module of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355308.9U CN219842680U (en) | 2023-05-30 | 2023-05-30 | Capacitive screen structure, touch display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355308.9U CN219842680U (en) | 2023-05-30 | 2023-05-30 | Capacitive screen structure, touch display module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219842680U true CN219842680U (en) | 2023-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321355308.9U Active CN219842680U (en) | 2023-05-30 | 2023-05-30 | Capacitive screen structure, touch display module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219842680U (en) |
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2023
- 2023-05-30 CN CN202321355308.9U patent/CN219842680U/en active Active
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