CN107797708A - Capacitive touch screen with less peripheral circuit - Google Patents
Capacitive touch screen with less peripheral circuit Download PDFInfo
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- CN107797708A CN107797708A CN201711157482.1A CN201711157482A CN107797708A CN 107797708 A CN107797708 A CN 107797708A CN 201711157482 A CN201711157482 A CN 201711157482A CN 107797708 A CN107797708 A CN 107797708A
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- 230000002093 peripheral effect Effects 0.000 title claims abstract description 15
- 230000005611 electricity Effects 0.000 claims description 6
- 230000006698 induction Effects 0.000 description 28
- 230000002146 bilateral effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
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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
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of capacitive touch screen with less peripheral circuit, in the viewing area of external screen, multiple horizontal arranged first module rows abreast extend to the non-visible area domain of external screen, multiple abreast to extend to non-visible area domain along the second unit row of longitudinal arrangement；It also includes at least two the oneth FPC, in non-visible area domain, the first end of multiple first module rows is divided at least two groups, and the first end of each first module row in each of which group electrically connects correspondingly with each electrode in the first FPC at least two the oneth FPC.Multiple FPC are connected to by the driver element row/column on the external screen by capacitive touch screen and/or the both ends of sensing unit column/row group by group, The present invention reduces the length of the electrode cabling of required peripheral circuit, even without preparing electrode cabling, so as to reduce due to the open circuit caused by the electrode cabling in excessive long peripheral circuit and it is short-circuit the problem of, improve the yields of product.
Description
Technical field
The present invention relates to capacitance-type touch screen technology field, more particularly to a kind of capacitive touch with less peripheral circuit
Touch screen.
Background technology
Touch-screen (touch screen) be it is most simple at present, conveniently, a kind of natural man-machine interaction mode, it is extensive
Applied to various fields such as information inquiry, Industry Control, Self-Service, multimedia teaching, electronic games.Big chi especially therein
Very little (20 cun and more than) touch-screen, due to that can provide bigger viewing area (or operable area), is obtained more and more
Application.
In various type of touch screens, the advantages of capacitive touch screen is with its accurate handy, wear-resistant, long lifespan etc.,
Large scale touch-screen occupies one seat, and has more preferably application prospect.Generally, capacitive touch screen includes logical each other
External screen and the interior screen that adhesive member (for example, double faced adhesive tape, adhesive etc.) is fixedly connected are crossed, wherein external screen is to provide the screen of touch controllable function
Curtain part, interior screen are to provide the screen portions of display function.The structure of the capacitive touch screen of prior art as shown in figures 1 to 6
Shown in schematic diagram, adhesive member 4 is fixed with the marginal portion on the surface 11 of external screen 1 (the non-visible area domain of touch-screen), viscosity
Interior screen 2 is fixedly connected by part 4 with external screen 1.
Wherein, external screen 1 can be single-sided structure (as Figure 1-3), i.e. the side table away from user in external screen
Sensing, driver element array are arranged on face 11 simultaneously.Specifically, as shown in figure 1, on the surface 11 of the side of external screen 1, can
Viewed area 1b interior edges both direction is arranged in rows multiple sensing units and driver element respectively, wherein, in lateral arrangement multirow
The sensing unit being connected in series, such as sensing unit 11a to sensing unit 11b sensing unit row are connected by multiple transversely series connection
The sensing unit connect is formed.
The sensing unit being outlined with a dotted line in figure is made up of rhombus conducting block with the conductive segment for being connected to its left and right ends, is driven
Moving cell is made up of rhombus conducting block with the conductive segment for being attached to lower both ends；But can also by a conductive segment and with its phase
A rhombus conducting block even is considered a sensing/driver element, or conductive segment and half of rhombus on its both sides is conductive
Block is considered a sensing/driver element, i.e., sensing/driver element specifically described herein can have various structure types, at this
The structure illustrated in figure is only used as an example, and is not considered as the limitation of sensing/driver element all specifically described herein.
As illustrated, the both ends of each sensing unit row are connected by an electrode cabling (being typically silver paste material) respectively
It is connected to an induction electrode of the lower edge for the non-visible area domain 1a for being arranged in external screen 1, such as sensing unit row 11a-11b
One end (i.e. sensing unit 11a one end) is connected to induction electrode 15a by induction electrode cabling 13a, and (i.e. sensing is single for the other end
First 11b one end) induction electrode 15b is connected to by induction electrode cabling 13b.Such as induction electrode 15a, 15b multiple sensings
FPC (flexible printed circuit board) 32, the FPC 33 of non-visible area domain 1a of the electrode with being fixed on external screen 1 lower edge are electrically connected
Connect.In addition, the driver element of Multi-row serial connection is arranged in the vertical, such as driver element 12a to a driver element 12b drive
Moving cell arranges to be made up of multiple driver elements along lontitudinal series connection；Upper end in the both ends of each driver element row is hanging,
Lower end is connected to the lower edge for the non-visible area domain 1a for being arranged in external screen 1 by an electrode cabling (being typically silver paste material)
Place a driving electrodes, as driver element row 12a-12b one end (i.e. driver element 12a one end) vacantly, the other end is (i.e.
Driver element 12b one end) driving electrodes 16 are connected to by driving electrodes cabling 14.Such as multiple drivings electricity of driving electrodes 16
The FPC31 of non-visible area domain 1a of the pole with being fixed on external screen 1 lower edge is electrically connected.
External screen 1 can also be bilateral structure (as Figure 4-Figure 6), i.e., be respectively arranged sense on two surfaces of external screen 1
Answer, driver element array, it is fixedly connected away from the side surface 11 of user by adhesive member 4 with interior screen 2, the table of opposite side
Face is bonded with a protective glass layers (not shown).In the example being shown here at, sensing unit array, induction electrode cabling, sense
Answer electrode and its FPC of electrical connection 32,33 to be arranged on the surface 11 of external screen, driver element array, driving electrodes cabling, drive
Moving electrode and its FPC of electrical connection 31 are arranged (is represented by dotted lines them on another surface on the other surface in Fig. 4
Part).
In the prior art, it is common practice to which all induction electrodes, driving electrodes are intensively arranged in a less area
In the range of domain, the FPC operations for being electrically connected to these electrodes are favourable for touchscreen manufacturer by this.But for big chi
Very little touch-screen, it means that induction electrode cabling and driving electrodes cabling (that is, the peripheral circuit of touch-screen) need from each row/
The end of the sensing units of row and driver element extends longer path and gets to position where induction electrode and driving electrodes
Put.This not only needs to take larger non-so as to cause the overall dimensions of product excessive, and can influence screen with the area in region
It is attractive in appearance；It is also easier to occur the circuit malfunction problem of sensing/driving electrodes cabling, influences the yields of finished product.
Such as 65 cun of capacitance type touch control screen, its about 300 driving electrodes and induction electrode.It is it is assumed that peripheral
The line width and line-spacing of circuit are all 0.1mm, then 60mm is at least wanted in the space of non-visible area, and this does not include each of manufacturing process also
The required space of kind error and screened circuit.Also, the cabling in its peripheral circuit is grown up to 1000-3000mm.So
The cabling of long, thin, close peripheral circuit requires that mould has high accuracy, and manufacturing process is somewhat slipped and may result in circuit
Failure, such as open circuit and short circuit problem.
Therefore, those skilled in the art is directed to developing a kind of capacitive touch screen with less peripheral circuit, with
Solve above-mentioned the problems of the prior art.
The content of the invention
To achieve the above object, the invention provides a kind of capacitive touch screen with less peripheral circuit, it includes
External screen and interior screen；In the viewing area of the external screen, multiple horizontal arranged first module rows abreast extend to described outer
The non-visible area domain of screen, multiple abreast to extend to the non-visible area domain along the second unit row of longitudinal arrangement, its feature exists
In,
Also include at least two the oneth FPC；
In the non-visible area domain, the first end of the multiple first module row is divided at least two groups, each of which
The first end of each first module row in group with it is each in the first FPC at least two the oneth FPC
Individual electrode electrically connects correspondingly.
Further, the capacitive touch screen also includes at least two the 2nd FPC；
In the non-visible area domain, the first end of the multiple second unit row is divided at least two groups, each of which
The first end of each second unit row in group with it is each in the 2nd FPC at least two the 2nd FPC
Individual electrode electrically connects correspondingly.
Further, the first module is driver element, and the second unit is sensing unit；Or described first
Unit is sensing unit, and the second unit is driver element.
Further, the first module and the second unit are arranged on two surfaces of the external screen
Still optionally further, the capacitive touch screen also includes at least two the 3rd FPC；The multiple first module row
The second end be divided at least two groups, the second end of each first module row in each of which group with it is described at least
Each electrode in the 3rd FPC in two the 3rd FPC electrically connects correspondingly；
The second end of the multiple second unit row is hanging.
Still optionally further, the capacitive touch screen also includes at least two the 3rd FPC and at least two the 4th FPC；
The second end of the multiple first module row is divided at least two groups, and each described first in each of which group
The second end of cell row and each electrode in the 3rd FPC at least two the 3rd FPC are electric correspondingly
Connection；
The second end of the multiple second unit row is divided at least two groups, and each described second in each of which group
The second end of cell columns and each electrode in the 4th FPC at least two the 4th FPC are electric correspondingly
Connection.
Alternatively, each electrode in the first end of each first module row and the first FPC is one by one
Accordingly directly contact or be connected by first electrode cabling, to realize the electrical connection between the two.
Alternatively, each electrode in the second end of each first module row and the 3rd FPC is one by one
Accordingly directly contact or be connected by first electrode cabling, to realize the electrical connection between the two.
Alternatively, each electrode in each second unit arranges first end and the 2nd FPC is one by one
Accordingly directly contact or be connected by second electrode cabling, to realize the electrical connection between the two.
Alternatively, each electrode in each second unit arranges the second end and the 4th FPC is one by one
Accordingly directly contact or be connected by second electrode cabling, to realize the electrical connection between the two.
Still optionally further, each first module row is made up of the first module of multiple sequential series, each
The second unit arranges to be made up of the first module of multiple sequential series.
Still optionally further, each first module row is made up of two disjunct first module row parts, each
The first module row part is made up of the first module of multiple series connection.
Further, the interval between two disjunct first module row parts is not less than 100nm.
Still optionally further, each second unit arranges is made up of two disjunct second unit row parts, each
The second unit row part is made up of the second unit of multiple series connection.
Further, the interval between two disjunct second unit row parts is not less than 100nm.
As can be seen here, the present invention passes through the driver element row/column and/or sensing unit on the external screen by capacitive touch screen
The both ends of column/row are connected to multiple FPC group by group, reduce for by the end of driver element row/column and sensing unit column/row
The length for the electrode cabling being connected to required for the electrode on FPC；And can be by making driver element row/column and sensing unit
The end of column/row is directly contacted with the electrode on FPC to realize the electrical connection between them, without preparing above-mentioned electricity
Pole cabling.Therefore, the present invention can reduce the peripheral circuit in the non-visible area domain for the external screen for being arranged in capacitive touch screen, so as to
Significantly reduce due to open circuit caused by the electrode cabling in excessive long peripheral circuit and it is short-circuit the problem of, improve
The yields of product；And the screen cover taken required for the non-visible area domain of the external screen of capacitive touch screen can also be reduced
Product, so that the touch-screen of finished product can have the frame of relatively narrower, so as to more aesthetically pleasing；And for large scale touch-screen,
Narrow frame effectively alleviates the weight of touch-screen.
Design, concrete structure and the caused technique effect of the present invention are described further below with reference to accompanying drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description of the drawings
Fig. 1 shows a kind of structure decomposition figure of the touch-screen of prior art, including interior screen and external screen.
Fig. 2 is the side view of the touch-screen shown in Fig. 1, and its inside and outside screen is fixedly connected each other.
Fig. 3 shows the external screen shown in Fig. 1, and it is single-sided structure.
Fig. 4 shows the structure decomposition figure of the touch-screen of another prior art.
Fig. 5 is the side view of the touch-screen shown in Fig. 4, and its inside and outside screen is fixedly connected each other.
Fig. 6 shows the external screen shown in Fig. 4, and it is bilateral structure.
Fig. 7 is schematically shown in first preferred embodiment, and the first end of multiple sensing unit rows passes through electricity
Pole cabling is connected respectively to two FPC, and its second end is connected respectively to two FPC also by electrode cabling.
Fig. 8 is schematically shown in second preferred embodiment, the first ends of multiple sensing unit rows respectively with
Two FPC are directly contact connected, and its second end is also directly contact connected with two FPC respectively；Plurality of driving is single
The first end of member row is also directly contact connected with two FPC respectively, and its second end is hanging.
Fig. 9 is shown directly contact to be connected between the first end of a sensing unit row in Fig. 8 and a FPC.
Figure 10 is schematically shown in the 3rd preferred embodiment, the first end and second of multiple sensing unit rows
End is all directly contact connected with two FPC respectively, and the first end and the second end of multiple driver element row are also all distinguished
Directly contact it is connected with two FPC.
Figure 11 is schematically shown in the 4th preferred embodiment, connect multiple sensing unit rows first end and
Four FPC and four induction chips of the second end；And two FPC and two of the first end of the multiple driver element row of connection
Individual driving chip.
Figure 12 is schematically shown in the 5th preferred embodiment, connect multiple sensing unit rows first end and
Four FPC and four induction chips of the second end；And two FPC and two of the first end of the multiple driver element row of connection
Individual driving chip；Wherein each sensing unit row all has two disjunct sensing unit sub-line to form.
Figure 13 shows two disjunct sensing unit sub-line in a sensing unit row shown in Figure 12.
Figure 14 is shown between two disjunct sensing unit sub-line in a sensing unit row shown in Figure 12
Another position relationship.
Figure 15 shows the external screen of the touch-screen shown in Fig. 8, is fixed with connector thereon, and the connector is used to realize external screen
It is fixedly connected with interior screen.
Figure 16 shows the external screen of the touch-screen shown in Figure 11, is fixed with connector thereon, and the connector is outer for realizing
Screen is fixedly connected with interior screen.
Embodiment
As previously mentioned, the external screen of capacitive touch screen can be single-sided structure or bilateral structure.This hair
The capacitive touch screen of bright offer is same, and external screen therein both can be single-sided structure or bilateral structure.But
It is, from the point of view of practicality, it is especially desirable to using the external screen of large-sized capacitive touch screen of the technical concept of the present invention
Generally use be all bilateral structure layout.Therefore, below only with the external screen of bilateral structure as an example, describing the present invention's
Technical scheme.It will be appreciated by those of skill in the art that technical scheme is equally applicable to single-sided structure
External screen touch-screen.In addition, below in conjunction with accompanying drawing in the description of technical scheme, its sensing list illustrated
Member, the form of driver element and layout also and should not be considered as the limitation to technical scheme.The skill of this area
Art personnel should be appreciated that technical scheme can apply to sensing unit, the driving list with various forms and layout
The touch-screen of member.
As shown in fig. 7, in first preferred embodiment, the sensing unit array on the external screen of touch-screen of the invention is
M horizontal arranged sensing unit rows：Sensing unit row 111-11n ..., 1i1-1in, 1j1-1jn ..., 1m1-1mn, its
In often row there is n sensing unit, i.e., this be a m × n sensing unit array；Wherein, i, j are all natural number, and 1<i<j
<m；Each sensing unit row has both ends, i.e. first end and the second end, respectively by electrode cabling be connected to FPC 311,
312nd, one in 321,322.
Driver element array on external screen as in next embodiment (referring to Fig. 8), driver element array therein
Arranged for the g driver elements along longitudinal arrangement：Driver element row 211-21h ..., 2e1-2eh, 2f1-2fh ..., 2g1-2gh,
Wherein each column has a h driver element, i.e., this be a h × g driver element array；Wherein, e, f are all natural number, and 1<e
<f<g.Generally, m be equal to h or with poor 1, the n of h be equal to g or with g poor 1；One end (the second end) of each driver element row vacantly,
The other end (first end) is connected to a FPC 31 by electrode cabling.
In the present embodiment, the first end of m sensing unit row is divided into two groups, one of which (that is, sensing unit
111st ..., 1i1 end) FPC 311 is connected to by electrode cabling respectively, and with a pair of each electrode 1 on FPC 311
Should ground electrical connection；Another group (that is, sensing unit 1j1 ..., 1m1 end) is connected to FPC 312 by electrode cabling respectively,
And electrically connected correspondingly with each electrode on FPC 312.The second end of m sensing unit row is also divided into two groups,
One of which (that is, sensing unit 11n ..., 1in end) is connected to FPC 321, and and FPC by electrode cabling respectively
Each electrode on 321 electrically connects correspondingly, and another group (that is, sensing unit 1jn ..., 1mn end) passes through electricity respectively
Pole cabling is connected to FPC 322, and is electrically connected correspondingly with each electrode on FPC 322.It is preferred that this m sensing
The first/second end of unit is divided into two groups, such as takes i=INT (m/2).
The electrode cabling being arranged in the present embodiment between the end of each FPC and sensing unit row can be by conductive silver paste
Prepare and formed.As electrode cabling use with visible area identical transparent conductive material (such as ITO), then can be touched preparing visible area
Together it is made when controlling unit, reduces production process.Due to that can design (as illustrated in fig. 7) and using the FPC compared with strip and general
The FPC is fixed on the end for the sensing unit row for needing its electrical connection, and the above-mentioned electrode cabling arranged in the present embodiment can be with
It is very short, such as no more than 50cm, and their layout can realize so that they possess larger spacing (such as not less than
There is larger line width (for example, being not less than 0.1mm) on the premise of 0.03mm).This for finished product capacitive touch screen it is good
Product rate is very good.
As shown in figure 8, in second preferred embodiment, sensing unit array on the external screen of touch-screen of the invention and
Driver element array is identical with previous embodiment.But the first end of the g driver element row in the present embodiment is divided into
Two groups, one of which (that is, driver element 211 ..., 2e1 end) FPC 411 is connected to by electrode cabling respectively, and with
Each electrode on FPC 411 electrically connects correspondingly；Another group (that is, driver element 2f1 ..., 2g1 end) leads to respectively
Cross electrode cabling and be connected to FPC 412, and electrically connected correspondingly with each electrode on FPC 412.M sensing unit row
The second end ground identical with previous embodiment it is hanging.It is preferred that the first end of this g driver element row is divided into two
Group, such as take e=INT (g/2).
In addition, in the present embodiment, the first ends of two ends of sensing unit row and driver element row directly with
Electrode electrical contact on corresponding FPC, it is as in the previous embodiment without preparing so as to realize the electrical connection between them
Electrode cabling.As shown in figure 9, wherein enlargedly show the first end of the sensing unit row 111-11n in Fig. 8 with it is corresponding
Connection between FPC 311.It can be seen that sensing unit row 111-11n first end 111a is from sensing unit 111 to external screen 1
Non-visible area domain extend and enter the non-visible area domain, FPC 311 is arranged in non-visible area domain close to the ground of sensing unit 111,
And first end 111a is covered, to cause electrode thereon directly to be contacted with first end 111a, so as to realize between the two
Electrical connection.Furthermore it is possible to by the way of generally arrangement FPC, such as hot pressing, realize electrode and first end 111a thereon it
Between reliably electrically connect.
First, second end of each sensing unit row in the present embodiment is when making each sensing unit row while formed
, the first end of each driver element row is when making driver element row while formed that they are all such as ITO materials.
Due to need not extraly make electrode cabling, the structure of the present embodiment enables to the manufacture craft of capacitive touch screen to obtain
Simplify.
Driver element array on external screen in touch-screen provided by the invention can also be all connected to group by group by both ends
FPC, i.e., the both ends of each row driver element row are neither hanging, as shown in Figure 10.
In the embodiment shown in fig. 10, the sensing unit array on external screen, driver element array and the first two embodiment
Identical, the packet of first, second end of sensing unit row is also identical with the first two embodiment, different from previous embodiment
It is that g driver element therein arranges no free end, its second end is also divided into two groups, one of which (i.e. driver element
211st ..., 2e1 end) directly contacted correspondingly with the electrode on FPC 421, realize the electrical connection between them；Separately
One group (i.e. driver element 21h ..., 2eh end) is directly contacted correspondingly with the electrode on FPC 421, realizes them
Between electrical connection.
In addition, though it is not shown, it will be understood to those skilled in the art that on the external screen of touch-screen provided by the invention
Each sensing unit row can also be that one end is hanging, and driver element row as shown in Figure 8 are such.
Each FPC on the external screen of capacitive touch screen provided by the invention can be from each different sensings/driving core
Piece electrically connects, as will be described in following embodiment.
As shown in figure 11, in the present embodiment, the sensing on external screen, driver element array and the embodiment phase shown in Fig. 8
Together, also, it respectively senses, drives the packet of cabling also identical with the embodiment.Specifically, the first end of m sensing unit row
Part is two groups, is connected respectively to FPC 1311,1312；The second end of m sensing unit row is divided into two groups, is connected respectively to
FPC 1321、1322；The first end (i.e. non-free end) of g driver element row is divided into two groups, be connected respectively to FPC 1411,
1412。
In the present embodiment, electrically connected with FPC1311-1322 using four induction chip 1511-1522, come to detect
The electric signal of sensing unit array；Electrically connected using two driving chips 1611,1612 with FPC 1411,1412, to driving
Cell array sends electric signal.Specifically, in the present embodiment, using COF (chip on film) technology, each chip is consolidated
Electrically connected corresponding to being scheduled on FPC and with FPC realizations.Specifically, induction chip 1511 be arranged on FPC 1311 and and FPC
1311 electrical connections, induction chip 1512 are arranged on FPC 1312 and electrically connected with FPC 1312, and induction chip 1521 is arranged in
Electrically connected on FPC 1321 and with FPC1321, induction chip 1522 is arranged on FPC 1322 and electrically connected with FPC 1322, drives
Dynamic chip 1611 is arranged on FPC 1411 and electrically connected with FPC 1411, driving chip 1612 be arranged on FPC 1412 and with
FPC 1412 is electrically connected.
Although it will be understood to those skilled in the art that described in the present embodiment be each sensing unit row both ends difference
Two different induction chips are connected, but can also connect two respectively at the both ends that each driver element arranges in other embodiments
Individual different driving chip.The arrangement of sensing/driving chip i.e. described herein is equally applicable to the capacitive touch shown in Figure 10
Touch the external screen structure of screen.
As it was previously stated, each sensing unit row both ends in the present embodiment are electrically connected two different induction chips, and
And each sensing unit in sensing unit row is to be connected in series.And in the embodiment shown in fig. 12, its sensing unit row two
End is also electrically connected two different induction chips, but each sensing unit in its sensing unit row is not connected in series,
But formed with being not attached to each other by two sensing unit sub-line, each sensing unit in each sensing unit sub-line is in series
Connection.
(position on its external screen shown in Figure 12 is equivalent to sense by sensing unit row 2111-211n as shown in Figure 13,14
Answer positions of the cell row 111-11n on the external screen shown in Fig. 7), it is by sensing unit sub-line 2111-211e and sensing unit
Row 211f-211n is formed, and each sensing unit in wherein sensing unit sub-line 2111-211e is connected in series, and sensing is single
Each sensing unit in first sub-line 211f-211n is also what is be connected in series.In the present embodiment, sensing unit sub-line 2111-
211e and sensing unit sub-line 211f-211n each other and is not attached to, and specifically, has one between sensing unit 211e and 211f
Gap 2110, the gap 2110 can be designed simultaneously when designing the domain of sensing unit array, form sensing unit battle array
Formed simultaneously with sensing unit array in the same processing step of row；The gap 2110 can also be in design sensing unit array
Do not considered during domain, and after the processing step of sensing unit array is formed, for example, by chemistry and laser ablation etc.
Method is formed between script connected sensing unit 211e and 211f.It is preferred that the span in the gap 2110 be not less than
100nm。
Further, in order to more effectively realize the signal shielding between the sensing unit sub-line of gap both sides, Ke Yiling
The two sensing unit sub-line two ends adjacent to each other are grounded respectively.
In addition, the above-mentioned mentality of designing that a sensing unit row is formed with two disjunct sensing unit sub-line can also
For the driver element row in external screen as shown in Figure 10 so that wherein each driver element row all have two disjunct drivings single
First son row are formed.
As shown in figure 12, it is all to connect not at the both ends of such as sensing unit row 2111-211n each sensing unit row
Same induction chip, and be all made up of two sensing unit sub-line separated each other by gap.Except each sensing is single
First row is separated into outside two sensing unit sub-line by gap, and the structure in the present embodiment is identical with previous embodiment.That is,
The first end of m sensing unit row is divided into two groups, is connected respectively to FPC 2311,2312；Second end of m sensing unit row
Part is two groups, is connected respectively to FPC 2321,2322；The first end (non-free end) of g driver element row is divided into two groups,
It is connected respectively to FPC 2411,2412.Using COF technologies, each chip is fixed on corresponding FPC and realized with the FPC
Electrical connection.Specifically induction chip 2511 is arranged on FPC 2311 and electrically connected with FPC 2311, and induction chip 2512 is arranged
Being electrically connected on FPC2312 and with FPC 2312, induction chip 2521 is arranged on FPC 2321 and electrically connected with FPC 2321,
Induction chip 2522 is arranged on FPC 2322 and electrically connected with FPC 2322, and driving chip 2611 is arranged on FPC 2411 simultaneously
Electrically connected with FPC 2411, driving chip 2612 is arranged on FPC 2412 and electrically connected with FPC 1412.
As described in the background section, the interior screen and external screen of capacitive touch screen need to be fixedly attached to one another,
The particularly suitable Chinese invention by such as Application No. 201711041470.2 of external screen of capacitive touch screen provided by the invention
Connector disclosed in patent is fixedly connected with interior screen.It is special that this specification includes above-mentioned Chinese invention by reference herein
Related content in profit, and further provide to use and wherein have slotted connector is fixedly connected with such as the application second
The mode of external screen described by (Fig. 8), the 4th (Figure 11) individual embodiment.
As shown in figure 15, a surface for having slotted connector 4000 is fixedly connected on the non-visible area domain of external screen, its
For square frame-shaped；Groove extends in connector 4000, its at least through each FPC 311 being fixed on external screen, 312,321,
322nd, 411 and 412, and there is opening 4001 at one external margin.From each and of FPC 311,312,321,322,411
412 wires 600 drawn are accommodated in groove, and extend through opening 4001, so as to be brought out external screen, and can be connected
To induction chip, the driving chip being arranged in outside external screen.
As shown in figure 16, a surface for having slotted connector 4000 is fixedly connected on the non-visible area domain of external screen, its
For square frame-shaped；Groove extends in connector 4000, its at least through each induction chip 2511 being fixed on external screen, 2512,
2521 and 2522 and each driving chip 2611,2612, and there is opening 4001 at one external margin.From each chip
2511st, 2512,2521,2522,2611 and 2612 wires 2600 drawn are accommodated in groove, and extend through opening
4001, so as to be brought out external screen, and may be coupled to be arranged in the processor outside external screen.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, the technology of all the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of capacitive touch screen with less peripheral circuits, it includes external screen and interior screen；In the visible area of the external screen
Domain, multiple horizontal arranged first module rows abreast extend to the non-visible area domain of the external screen, multiple along longitudinal arrangement
Second unit row abreast extend to the non-visible area domain, it is characterised in that
Also include at least two the oneth FPC；
In the non-visible area domain, the first end of the multiple first module row is divided at least two groups, in each of which group
Each first module row first end and at least two the oneth FPC in the first FPC in each electricity
Pole electrically connects correspondingly.
2. capacitive touch screen as claimed in claim 1, wherein, in addition at least two the 2nd FPC；
In the non-visible area domain, the first ends of the multiple second unit row is divided at least two groups, in each of which group
Each second unit row first end and each electricity in the 2nd FPC at least two the 2nd FPC
Pole electrically connects correspondingly.
3. capacitive touch screen as claimed in claim 1 or 2, wherein, the first module is driver element, and described second is single
Member is sensing unit；Or the first module is sensing unit, the second unit is driver element.
4. capacitive touch screen as claimed in claim 2, wherein, the first module and the second unit are arranged in
On two surfaces of the external screen.
5. capacitive touch screen as claimed in claim 4, wherein, in addition at least two the 3rd FPC；The multiple first module
Capable the second end is divided at least two groups, the second end of each first module row in each of which group with it is described extremely
Each electrode in the 3rd FPC in few two the 3rd FPC electrically connects correspondingly；
The second end of the multiple second unit row is hanging.
6. capacitive touch screen as claimed in claim 4, wherein, in addition at least two the 3rd FPC and at least two the 4th
FPC；
The second end of the multiple first module row is divided at least two groups, each first module in each of which group
Capable the second end electrically connects correspondingly with each electrode in the 3rd FPC at least two the 3rd FPC；
The second end of the multiple second unit row is divided at least two groups, each second unit in each of which group
The second end of row electrically connects correspondingly with each electrode in the 4th FPC at least two the 4th FPC.
7. capacitive touch screen as claimed in claim 4, wherein, the first end of each first module row with it is described
Each electrode in first FPC is directly contacted or is connected by first electrode cabling correspondingly, to realize institute between the two
State electrical connection；
The first end of each second unit row directly connects correspondingly with each electrode in the 2nd FPC
Touch or be connected by second electrode cabling, to realize the electrical connection between the two.
8. the capacitive touch screen as described in claim 5 or 6, wherein, each first module row is by multiple sequential series
The first module is formed, and each second unit arranges to be made up of the first module of multiple sequential series.
9. the capacitive touch screen as described in claim 5 or 6, wherein, each first module row is by two disjunct
One cell row part is formed, and each first module row part is made up of the first module of multiple series connection.
10. capacitive touch screen as claimed in claim 9, wherein, between two disjunct first module row parts
Interval is not less than 100nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711157482.1A CN107797708A (en) | 2017-11-20 | 2017-11-20 | Capacitive touch screen with less peripheral circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711157482.1A CN107797708A (en) | 2017-11-20 | 2017-11-20 | Capacitive touch screen with less peripheral circuit |
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| CN107797708A true CN107797708A (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711157482.1A Pending CN107797708A (en) | 2017-11-20 | 2017-11-20 | Capacitive touch screen with less peripheral circuit |
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| Country | Link |
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| CN108874214A (en) * | 2018-05-25 | 2018-11-23 | 业成科技（成都）有限公司 | It is touch panel structure provided |
| CN110162216A (en) * | 2019-05-15 | 2019-08-23 | 芜湖伦丰电子科技有限公司 | A kind of narrow side touch screen and preparation method thereof |
| CN110162229A (en) * | 2019-05-23 | 2019-08-23 | 成都吉锐时代触摸技术有限公司 | Narrow frame capacitance plate |
| US10698542B2 (en) | 2018-01-26 | 2020-06-30 | Quanzhou Shengwei Electronic Technology Co., Ltd. | Capacitive touch panel having partitioned regions for drive lines and sense lines on surface thereof |
| CN112684939A (en) * | 2019-02-01 | 2021-04-20 | 华为技术有限公司 | Touch screen for narrow-frame electronic equipment and electronic equipment |
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| US20100156811A1 (en) * | 2008-12-22 | 2010-06-24 | Ding Hua Long | New pattern design for a capacitive touch screen |
| CN207488980U (en) * | 2017-11-20 | 2018-06-12 | 深圳市盛迪瑞科技有限公司 | A kind of capacitive touch screen and its external screen |
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| US20100156811A1 (en) * | 2008-12-22 | 2010-06-24 | Ding Hua Long | New pattern design for a capacitive touch screen |
| CN207488980U (en) * | 2017-11-20 | 2018-06-12 | 深圳市盛迪瑞科技有限公司 | A kind of capacitive touch screen and its external screen |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10698542B2 (en) | 2018-01-26 | 2020-06-30 | Quanzhou Shengwei Electronic Technology Co., Ltd. | Capacitive touch panel having partitioned regions for drive lines and sense lines on surface thereof |
| US10983643B2 (en) | 2018-01-26 | 2021-04-20 | Quanzhou Shengwei Electronic Technology Co., Ltd. | Touch panel having partitioned regions on surface thereof |
| CN108874214A (en) * | 2018-05-25 | 2018-11-23 | 业成科技（成都）有限公司 | It is touch panel structure provided |
| CN108874214B (en) * | 2018-05-25 | 2021-05-04 | 业成科技（成都）有限公司 | Touch panel structure |
| CN112684939A (en) * | 2019-02-01 | 2021-04-20 | 华为技术有限公司 | Touch screen for narrow-frame electronic equipment and electronic equipment |
| CN112684939B (en) * | 2019-02-01 | 2021-12-03 | 华为技术有限公司 | Touch screen for narrow-frame electronic equipment and electronic equipment |
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| CN110162216A (en) * | 2019-05-15 | 2019-08-23 | 芜湖伦丰电子科技有限公司 | A kind of narrow side touch screen and preparation method thereof |
| CN110162229A (en) * | 2019-05-23 | 2019-08-23 | 成都吉锐时代触摸技术有限公司 | Narrow frame capacitance plate |
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