CN107390914A - Contact panel and display device - Google Patents
Contact panel and display device Download PDFInfo
- Publication number
- CN107390914A CN107390914A CN201710442447.8A CN201710442447A CN107390914A CN 107390914 A CN107390914 A CN 107390914A CN 201710442447 A CN201710442447 A CN 201710442447A CN 107390914 A CN107390914 A CN 107390914A
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- China
- Prior art keywords
- contact panel
- lead
- electrode
- main lead
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 53
- 230000005611 electricity Effects 0.000 claims description 9
- DUFIGUFDFVMECU-UHFFFAOYSA-N [Pb+2].[O-2].[In+3].[Sn+4] Chemical compound [Pb+2].[O-2].[In+3].[Sn+4] DUFIGUFDFVMECU-UHFFFAOYSA-N 0.000 claims description 6
- WBGNVADHURSIJJ-UHFFFAOYSA-N [In].[Pb].[Sn] Chemical compound [In].[Pb].[Sn] WBGNVADHURSIJJ-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 1
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- 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
Abstract
The invention discloses a kind of contact panel, the contact panel includes at least one first electrode, at least one first main lead and at least one first sub- lead, the first main lead is located at the edge of the width of the contact panel, the opposite end of each first sub- lead electrically connects with a first main lead and a first electrode respectively, and at least two first electrodes are electrically connected to the flexible PCB by the same first main lead.The present invention also disclosed a kind of display device.Reduce the quantity of the opaque conductive lead wire (the first main lead) of the widthwise edges positioned at contact panel, so as to increase the width size of transparent region, reduce frame, the corresponding viewing area for increasing display device, narrow frame effect is realized, improves Consumer's Experience.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of contact panel and display device.
Background technology
With the development of science and technology, the touch technology of display screen has also obtained development at full speed, and touch-screen is extensive
Applied in the electronic equipments such as mobile phone, computer, e-book, tablet personal computer, it has also become essential part in people's life.With
It is various can the numerous and confused of display device of touch-control emerge, consumer is to touching the requirements of each side such as the attractive in appearance of screen, performance
More and more higher.Capacitive touch screen is a kind of touch-control structure for being widely used in display device, the condenser type of external hanging type structure
Touch-screen is mainly GFF (Glass-Film-Film) structure, the i.e. structure of glass cover-plate-membrane electrode or glass cover-plate-film
The structure of electrode-membrane electrode, and membrane electrode needs and the flexible PCB (Flexible positioned at contact panel one end
Printed Circuit, FPC) binding, so as to realize the electrical connection with other electronic devices of display device.
In the prior art, the edge of the viewing area of contact panel by opaque metal lead wire by membrane electrode and position
Flexible PCB in contact panel top or bottom binds connection, realizes the electrical connection of flexible PCB and membrane electrode, then
By flexible PCB around rolling over and be connected on mainboard.In order to display device overall appearance effect, it is necessary in contact panel both sides
Process black frame covers metal lead wire, and so as to influence the size of viewing area, the display device of Wide frame greatly reduces
Consumer's Experience.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of contact panel and display device, to solve in the prior art
The requirement on machining accuracy of metal lead wire is strict, the problem of substantially increasing production cost to improve product yield.
In order to solve the above technical problems, the present invention provides a kind of contact panel, flexible PCB, the touch surface are electrically connected
Plate includes first electrode, the first main lead and the first sub- lead, and the first main lead is located at the width side of the contact panel
To edge, the opposite end of each first sub- lead the first electricity described with a first main lead and one respectively
Pole electrically connects, and at least two first electrodes are electrically connected to the flexible PCB by the same first main lead.
Because at least two first electrodes by the same first main lead are electrically connected to flexible PCB, it is not necessary to each first electrode
It will be electrically connected with a first main lead, therefore reduce the opaque conduction of the widthwise edges positioned at contact panel
The quantity of lead (the first main lead), so as to reduce the invisible frame area in contact panel both sides, increases display device
Viewing area, narrow frame effect is realized, improves Consumer's Experience.
Further, the first electrode quantity for being electrically connected to flexible PCB by the same first main lead is
2~6.When first electrode by the same first main lead be electrically connected to flexible PCB quantity be 2 when, relatively
The quantity that can cause the first main lead in prior art halves, so as to reduce the area of the invisible frame of contact panel；
When first electrode is electrically connected to the quantity of flexible PCB more than 6 by the same first main lead, can cause to touch
Control sense blind area in panel to increase, impedance increases and causes the reduction of contact panel performance.
Further, the first electrode quantity for being electrically connected to flexible PCB by the same first main lead is
3~5, it can now ensure while causing the first main number of leads to reduce, to be unlikely to so that in contact panel sensing blind
Area increases, and impedance increases and causes the reduction of contact panel performance.
Further, the first electrode quantity for being electrically connected to flexible PCB by the same first main lead is
2.The quantity of the first main lead now is being reduced, in the case of ensureing increase unobvious in sense blind area in contact panel, is being ensured
The load of first main lead is superfluous in order to the IC debugging being subsequently connected with flexible PCB.
Further, the line width of the described first main lead is 1um~80um.When the first main lead line width less than 1um when
Wait the signal load held and can't stand a plurality of first electrode passage；It can cause frame not when the line width of the first main lead is more than 80um
Transparent area increase, the effect of touch screen both ends narrow frame is not realized.Therefore the line width of the first main lead is arranged to
1um~80um is suitable.
Further, the line width of the described first main lead is 10um~40um.The line width of first main lead is arranged on the model
The signal load of a plurality of first electrode passage can preferably be born by enclosing interior one side, and frame on the other hand can be controlled opaque
Area to realize the narrow frame effect of touch screen the right and left.
Further, the line width of the described first main lead is 10um~20um.On the one hand being arranged such can at utmost hold
By the signal load of a plurality of first electrode passage, the narrow frame effect of the right and left on the other hand can be realized well.
Further, the contact panel also includes the second electrode of array arrangement, and the second electrode is electrically connected to described
Flexible PCB, the first electrode is relative with the second electrode to be stacked to form capacitance structure.The first electricity can so be made
Pole forms equally distributed capacitance structure with second electrode, and user can make contact panel when touching the arbitrfary point of contact panel
Recognize accurate touching signals.
Further, the contact panel also includes the second conductive lead wire and the 3rd conductive lead wire, and described the second of same row
In electrode, the second electrode of odd-numbered line is electrically connected to the flexible PCB, even number line by second conductive lead wire
The second electrode flexible PCB is electrically connected to by the 3rd conductive lead wire.So provided contact panel
Number of channels is identical with the number of channels of the contact panel of prior art, without changing tying up for first electrode and second electrode
Determine the binding of mode and contact panel and flexible PCB, contact panel can use the flexible PCB of prior art, without
Individually designed new flexible PCB, has saved production cost, has improved interchangeability, so as to reduce maintenance cost.
Further, the angle of the width of the bearing of trend of the described first main lead and contact panel into substantially 90 degree.
Electric signal that first electrode detects can be so electrically connected to the binding point of contact panel length direction by the first main lead,
Avoid setting opaque binding point in contact panel left and right ends and increasing the area in left and right sides frame region.
Further, the bearing of trend of the described first main lead and the width of contact panel are into 90 degree of angle.Thus
Electric signal that first electrode detects can be electrically connected to the binding point of contact panel length direction by the first main lead, avoided
Opaque binding point is set in contact panel left and right ends and increases the area in left and right sides frame region, while is easy to the first master
The large-scale production of lead, improve yield.
Further, the described first main lead is tin indium oxide lead.It can so avoid because the first opaque master draws
Line and need to set frame to block, therefore can further reduce the frame area at left and right sides of contact panel.
Further, it is that semimetal semi-oxidized indium tin draws positioned at the outermost first main lead of contact panel width
Line, other described first main leads are tin indium oxide lead.It on the one hand can so avoid the first main lead because opaque
And need to set frame to block, therefore can further reduce the frame area at left and right sides of contact panel；On the other hand can be with
Impedance of the transparent indium tin oxide as the first main lead is reduced, improves effectiveness.
Further, the same first electrode passes through two first sub- leads and the same first main lead
Electrical connection.After such first sub- wire breaking for ensuring to electrically connect with first electrode, still it can ensure first electrode
Electric signal be accurately transferred to the first main lead.
Present invention also offers a kind of display device, the display device is included described in display panel and any of the above one
Contact panel, the display panel is stacked with the contact panel, and the display panel output image is simultaneously through described
The transparent region of contact panel is shown.
Beneficial effects of the present invention are as follows：Because at least two first electrodes are electrically connected to by the same first main lead
Flexible PCB, it is not necessary to which each first electrode will electrically connect with a first main lead, therefore reduce positioned at touch surface
The quantity of the opaque conductive lead wire (the first main lead) of the widthwise edges of plate, so as to increase the width of transparent region
Direction size, frame is reduced, the corresponding viewing area for increasing display device, narrow frame effect is realized, improves user
Experience.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other obvious modes of texturing are obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the contact panel that the embodiment of the present invention one provides.
Fig. 2 is the arrangement schematic diagram for the first electrode that the embodiment of the present invention one provides.
Fig. 3 is the arrangement schematic diagram for the second electrode that the embodiment of the present invention one provides.
Fig. 4 is the partial structural diagram for the contact panel that the embodiment of the present invention two provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 and Fig. 2 are referred to, the contact panel that the embodiment of the present invention one provides is electrically connected to flexible PCB, touch surface
Plate includes at least one first electrode 12, at least one first main lead 22 and at least one first sub- lead 24.It is a kind of preferable
Embodiment in, contact panel generally rectangle, contact panel includes orthogonal length direction and width, length
Direction is the direction where the long side of contact panel, and width is the direction where the short side of contact panel.In the present embodiment,
First electrode 12 is the conductive film that transparent conductive material is formed, and in a kind of preferably embodiment, first electrode 12 is pattern
Tin indium oxide (Indium tin oxide, ITO) film of change.Further, the quantity of first electrode 12 is multiple, and the
Length direction array arrangement of one electrode 12 along contact panel.The finger touch that first electrode 12 is used to receive user is shown
Touch information caused by equipment.
First main lead 22 is located at the edge of the width of contact panel, in a kind of preferably embodiment, the first master
Lead 22 is rectilinear form, and the first main lead 22 is parallel to the long side of contact panel, in favor of the first main lead 22 plus
Work and the length for minimizing the first main lead 22.
The opposite end of each first sub- lead 24 is electrically connected with a first main lead 22 and a first electrode 12 respectively
Connect.Specifically, the first sub- lead 24, between the first main lead 22 and first electrode 12, the first sub- lead 24 electrically connects first
Electrode 12, further, the first sub- lead 24 electrically connect the end of first electrode 12, and each first electrode 12 only electrically connects
One the first sub- lead 24.First main lead 22 is electrically connected to flexible PCB, and each first main lead 22 electrically connects at least two
Individual first sub- lead 24, so that at least two first electrodes 12 are electrically connected to flexible circuit by the same first main lead 22
Plate.Specifically, the quantity for the first sub- lead 24 that each first main lead 22 electrically connects is identical, multiple first main leads 22 are by institute
Some first electrodes 12 are electrically connected to flexible PCB.In the present embodiment, each first main lead 22 electrically connects two first
Sub- lead 24, to avoid the quantity of the same first main lead 22 while the first sub- lead 24 of electrical connection excessive, cause first
Load excessive on main lead 22.
Because at least two first electrodes 12 by the same first main lead 22 are electrically connected to flexible PCB, it is not necessary to
Each first electrode 12 will electrically connect with a first main lead 22, therefore reduce positioned at the width side of contact panel
The quantity of the opaque conductive lead wire (the first main lead 22) of edge, so as to increase the width size of transparent region, contracting
Small frame, the corresponding viewing area for increasing display device, realizes narrow frame effect, improves Consumer's Experience.
In the present embodiment, when first electrode 12 is electrically connected to by the same first main lead 22 quantity of flexible PCB
When less, while reducing the quantity of the first main lead 22, reduce the area of the invisible frame of contact panel, contact panel is avoided
Middle sense blind area is excessive, impedance increases and causes the reduction of contact panel performance；When first electrode 12 is drawn by the same first master
Line 22 be electrically connected to flexible PCB quantity it is more when, the quantity of the first main lead 22 is less, it is invisible to reduce contact panel
The area effect of frame is more preferable, but sense blind area in contact panel can be caused to increase, and impedance increases and causes contact panel performance
Reduce.
In a kind of embodiment, the first electrode 12 that flexible PCB is electrically connected to by the same first main lead 22 counts
Measure as 2~6.When first electrode 12 by the same first main lead 22 be electrically connected to flexible PCB quantity be 2 when,
The quantity that can cause the first main lead 22 relative to prior art halves, so as to reduce the invisible frame of contact panel
Area；When first electrode 12 is electrically connected to the quantity of flexible PCB more than 6 by the same first main lead 22, can lead
Sense blind area in contact panel is caused to increase, impedance increases and causes the reduction of contact panel performance.
In a kind of embodiment, the first electrode 12 that flexible PCB is electrically connected to by the same first main lead 22 counts
Measure as 3~5, can now ensure while causing the first main quantity of lead 22 to reduce, to be unlikely to so that in contact panel
Sense blind area increases, and impedance increases and causes the reduction of contact panel performance.
Specific to Fig. 2, in a kind of embodiment, the of flexible PCB is electrically connected to by the same first main lead 22
One number of electrodes is 2.The quantity of the first main lead 22 now is being reduced, is ensureing increase unobvious in sense blind area in contact panel
In the case of, ensure that the load of the first main lead 22 is superfluous in order to the IC debugging being subsequently connected with flexible PCB.
In the present embodiment, the line width of the first main lead 22 is 1um~80um.When the line width of the first main lead 22 is less than 1um
When hold the signal load that can't stand a plurality of passage of first electrode 12；It can be led when the line width of the first main lead 22 is more than 80um
The area increase that frame is opaque is caused, does not realize the effect of touch screen both ends narrow frame.Therefore the first main lead 22
It is suitable that line width, which is arranged to 1um~80um,.
Further, the line width of the first main lead 22 is 10um~40um.The line width of first main lead 22 is arranged on this
In the range of on the one hand can preferably bear the signal load of a plurality of passage of first electrode 12, on the other hand can control frame not
Transparent area is to realize the narrow frame effect of touch screen the right and left.
In a kind of preferably embodiment, the line width of the first main lead 22 is 10um~20um.Being arranged such on the one hand can
At utmost to bear the signal load of a plurality of passage of first electrode 12, the narrow side of the right and left on the other hand can be realized well
Frame effect.
In a kind of preferably embodiment, the first main 22 and first sub- lead 24 of lead is elargol line, i.e., the first master draws
22 and first sub- lead 24 of line is to pass through the mode shape such as chemical etching or laser-induced thermal etching coated on the elargol layer on transparency carrier
Into.Elargol line electric conductivity is good, beneficial to the electric signal transmission between first electrode 12 and flexible PCB.Further,
One main lead 22 is integrally formed with the first sub- lead 24, simplifies process, and is advantageous to the first main lead 22 and first
The connection of sub- lead 24 is accurate, eliminate the first main 22 and first sub- lead 24 of lead process respectively formed after accurate overlap joint
Journey, product yield is improved, reduce production cost.
Specific to Fig. 2, in the present embodiment, first electrode 12 includes the first end 122 and the second end being oppositely arranged
124, first electrode 12 is electrically connected to flexible PCB by one of first end 122 and the second end 124.Specifically, first
End 122 and the second end 124 are respectively that first electrode 12 is logical in the both ends of the width of contact panel, the first sub- lead 24
Cross the modes such as overlap joint and be fixed on first end 122 or the second end 124, the first sub- lead 24 is electrically connected into first electrode 12.
Each first electrode 12 only has one of first end 122 and the second end 124 and electrically connects the first sub- lead 24, for example, certain first
Electrode 12 electrically connects the first sub- lead 24, so as to be electrically connected to flexible PCB, the then first electrode 12 by first end 122
The second end 124 be not connected to the first sub- lead 24；Or certain first electrode 12 passes through of the electrical connection of the second end 124 first
Lead 24, so as to be electrically connected to flexible PCB, then the first end 122 of the first electrode 12 is not connected to the first sub- lead 24.
First electrode 12 only electrically connects the first sub- lead 24 by one of first end 122 and the second end 124, avoids the first sub- lead
24 and first width of the main integrated distribution of lead 22 in contact panel side, cause the one of the width of contact panel
The situation that the frame of side is wider, contact panel border width is uneven.
In the present embodiment, the first main lead 22 is electrically connected to first electrode 12 and forms first electrode group 20, each first electricity
First sub- lead 24 of pole group 20 only electrically connects first electrode 12 by first end 122, or the of each first electrode group 20
One sub- lead 24 only electrically connects first electrode 12 by the second end 124.Specifically, each first electrode group 20 includes one the
One main lead 22, at least two first sub- first electrodes 12 of lead 24 and at least two, first electrode group 20 include the following two kinds
Type：1, each first sub- lead 24 electrically connects a first electrode 12 by first end 122, and the first main lead 22 is by first
Sub- lead 24 is electrically connected to flexible PCB；2, each first sub- lead 24 electrically connects one first electricity by the second end 124
First sub- lead 24 is electrically connected to flexible PCB by pole 12, the first main lead 22.The two kinds of first electrode group 20 can
To be staggered, can also be arranged such as Fig. 2 modes.In a kind of preferably embodiment, the two kinds of first electrode group 20
Quantity it is identical so that the seal ring thickness of the width of contact panel is identical.
In the present embodiment, the quantity of the first electrode 12 of each first electrode group 20 is identical.A kind of preferable embodiment
In, as shown in Fig. 2 each first electrode group 20 includes two first electrodes 12, corresponding each first main electrical connection of lead 22 two
Individual first sub- lead 24.The quantity of the first electrode 12 included due to each first electrode group 20 is identical, passes through first end 122
Electrically connect first master of the quantity of the first main lead 22 of first electrode 12 with electrically connecting first electrode 12 by the second end 124
The quantity of lead 22 is identical, i.e. the quantity phase of the 12 main lead of first electrode of the width both sides of the edge distribution of contact panel
Together, the border width of the width both sides of the edge of contact panel is identical, and border width is uniform, has beautified frame design, improves
Consumer's Experience.
Because at least two first electrodes 12 by the same first main lead 22 are electrically connected to flexible PCB, it is not necessary to
Each first electrode 12 will electrically connect with a first main lead 22, therefore reduce positioned at the width side of contact panel
The quantity of the opaque conductive lead wire (the first main lead 22) of edge, so as to increase the width size of transparent region, contracting
Small frame, the corresponding viewing area for increasing display device, realizes narrow frame effect, improves Consumer's Experience.
With reference to Fig. 3, contact panel also includes the second electrode 14 of array arrangement, and second electrode 14 is electrically connected to flexible circuit
Plate, first electrode 12 is relative with second electrode 14 to be stacked to form capacitance structure.In the present embodiment, second electrode 14 is transparent
The conductive film that conductive material is formed, it is a kind of preferably in embodiment, second electrode 14 for patterning tin indium oxide
(Indium tin oxide, ITO) film.Specifically, the corresponding first electrode 12 of second electrode 14 forms capacitance structure, Mei Ge
The quantity of second electrode 14 corresponding to one electrode 12 is identical, and the spacing between second electrode 14 is identical, so that the first electricity
Pole 12 forms equally distributed capacitance structure with second electrode 14, and user can make touch-control when touching the arbitrfary point of contact panel
Panel recognizes accurate touching signals.
In the present embodiment, contact panel also includes the second conductive lead wire 32 and the 3rd conductive lead wire 34, and the second of same row
In electrode 14, the second electrode 14 of odd-numbered line is electrically connected to flexible PCB by the second conductive lead wire 32, and the second of even number line
Electrode 14 is electrically connected to flexible PCB by the 3rd conductive lead wire 34.Specifically, the line number of second electrode 14 is even number line, from
And make by the second conductive lead wire 32 be electrically connected to flexible PCB second electrode 14 quantity with by the 3rd conductive lead wire
34 be electrically connected to the second electrode 14 of flexible PCB quantity it is identical, the second conductive lead wire 32 and the 3rd conductive lead wire 34 it is negative
Carry identical.Electrical connection first electrode 12 or second electrode 14 to the conductive lead wire of flexible PCB are properly termed as passage, the first master
Lead 22 electrically connects two first electrodes 12 simultaneously, and a first electrode is electrically connected relative to each conductive lead wire in the prior art
12, the number of channels that first electrode 12 is electrically connected to flexible PCB halves；Second electrode 14 passes through the He of the second conductive lead wire 32
3rd conductive lead wire 34 is electrically connected to flexible PCB, and one second electricity is electrically connected relative to each conductive lead wire in the prior art
Pole 14 (a row second electrode 14), the number of channels that second electrode 14 is electrically connected to flexible PCB is double, the embodiment of the present invention
The number of channels of one contact panel provided is identical with the number of channels of the contact panel of prior art, without changing first
The binding of electrode 12 and the binding mode and contact panel and flexible PCB of second electrode 14, what the embodiment of the present invention one provided
Contact panel can use the flexible PCB of prior art, without individually designed new flexible PCB, saved and be produced into
This, improves interchangeability, so as to reduce maintenance cost.
In the present embodiment, contact panel also includes binding point 40, and binding point 40 binds flexible PCB, and binding point 40
The first main lead 22, the second conductive lead wire 32 and the 3rd conductive lead wire 34 are electrically connected, so that first electrode 12 and second electrode
14 are electrically connected to flexible PCB.In a kind of preferably embodiment, binding point 40 is to protrude from the metal on substrate, specifically
, binding point 40 is that elargol layer is formed by modes such as chemical etching or laser-induced thermal etchings.Binding point 40 is the first main lead 22, the
The contact point of two conductive lead wires 32 and the 3rd conductive lead wire 34 and flexible PCB, binding point 40 relative to the first main lead 22,
Second conductive lead wire 32 and the 3rd conductive lead wire 34 have a larger planar dimension, thus binding point 40 and flexible PCB have compared with
Big contact area, be advantageous to the binding of flexible PCB and binding point 40 and be connected.
Further, the first main lead 22, the second conductive lead wire 32, the 3rd conductive lead wire 34 and the one of binding point 40 into
Type, process is simplified, reduce production cost, and be advantageous to improve the first main lead 22, the second conductive lead wire the 32, the 3rd
Conductive lead wire 34 and the connection precision of binding point 40, improve production yields.
In the present embodiment, the bearing of trend of the first main lead 22 and the width of contact panel into substantially 90 degree folder
Angle.So the electric signal that first electrode 12 detects can be electrically connected to contact panel length direction by the first main lead 22
Binding point 40, avoid the face in the frame region at left and right sides of setting opaque binding point 40 in contact panel left and right ends increases
Product.
In a kind of preferably embodiment, the bearing of trend of the first main lead 22 and the width of contact panel are into 90 degree
Angle.It is possible thereby to the electric signal that first electrode 12 detects is electrically connected to contact panel length side by the first main lead 22
To binding point 40, avoid setting opaque binding point 40 in contact panel left and right ends and frame region at left and right sides of increasing
Area, while it is easy to the large-scale production of the first main lead 22, improve yield.
In the present embodiment, binding point 40 includes the first binding point 42 and the second binding point 44, and the first binding point 42 electrically connects
First main lead 22, so that first electrode 12 is electrically connected to flexible PCB, the second binding point 44 electrically connects the second conduction and drawn
The conductive lead wire 34 of line 32 or the 3rd, so that second electrode 14 is electrically connected to flexible PCB, the first binding point 42 and second are tied up
Fixed point 44 is respectively positioned on same one end of the length direction of contact panel.Specifically, the first binding point 42 is in turn electrically connected to the first master
Lead 22, the first sub- lead 24, first electrode 12, so as to which first electrode 12 is electrically connected into flexible PCB, the second binding point
44 are electrically connected to the second conductive lead wire 32, second electrode 14, so as to which partial second electrode 14 is electrically connected into flexible PCB, the
Two binding points 44 are electrically connected to the 3rd conductive lead wire 34, second electrode 14, so as to which partial second electrode 14 is electrically connected into flexibility
Circuit board.That is the first binding point 42 is that first electrode 12 is electrically connected to the tie point of flexible PCB, and the second binding point 44 is the
Two electrodes 14 are electrically connected to the tie point of flexible PCB.First main lead 22 electrically connects two first electrodes 12 simultaneously, i.e., every
Corresponding two first electrodes 12 of individual first binding point 42, it is corresponding one first relative to each first binding point 42 in the prior art
Electrode 12, the quantity of the first binding point 42 halve；Second electrode 14 passes through the second conductive lead wire 32 and the electricity of the 3rd conductive lead wire 34
Flexible PCB, the i.e. corresponding row second electrode 14 of the second binding point of each two 44 are connected to, relative to each in the prior art
The corresponding second electrode 14 (a row second electrode 14) of second binding point 44, the quantity of the second binding point 44 is double, the present invention
Embodiment one provide contact panel binding point 40 quantity (after the first binding point 42 and the quantity of the second binding point 44) with
The quantity of the binding point 40 of the contact panel of prior art is identical, without changing tying up for first electrode 12 and second electrode 14
The binding design and the arrangement of binding point 40 design, the embodiment of the present invention one for determining mode, contact panel and flexible PCB provide
Contact panel can use prior art flexible PCB, without individually designed new flexible PCB, save production
Cost, interchangeability is improved, so as to reduce maintenance cost.
Because at least two first electrodes 12 by the same first main lead 22 are electrically connected to flexible PCB, it is not necessary to
Each first electrode 12 will electrically connect with a first main lead 22, therefore reduce positioned at the width side of contact panel
The quantity of the opaque conductive lead wire (the first main lead 22) of edge, so as to increase the width size of transparent region, contracting
Small frame, the corresponding viewing area for increasing display device, realizes narrow frame effect, improves Consumer's Experience.
The contact panel that the embodiment of the present invention one provides also includes cover plate, 14 layers of cover plate, first electrode 12 and second electrode
Folded to set, side edge thereof printing frame is used to block the first main lead 22, the first sub- lead 24, the second conductive lead wire the 32, the 3rd
Conductive lead wire 34 and binding point 40.Specifically, the frame for being printed in cover plate is black ink layer, black ink layer is light tight, from
And electronic device opaque under cover plate is blocked, display device attractive in appearance.
Referring to Fig. 4, contact panel and the difference of embodiment one that the embodiment of the present invention two provides are, by same
The quantity of first electrode 12 that first main lead 22 is electrically connected to flexible PCB is 3, and corresponding contact panel also includes the 4th
Conductive lead wire 36, the second conductive lead wire 32, the 3rd conductive lead wire 34 and the 4th conductive lead wire 36 are sequentially connected electrically contact panel
A second electrode 14 on length direction.Specifically, between the adjacent second electrode 14 connected by the second conductive lead wire 32
Two second electrodes 14 are spaced, two second electrodes are spaced between the adjacent second electrode 14 connected by the 3rd conductive lead wire 34
14, two second electrodes 14 are spaced between the adjacent second electrode 14 connected by the 4th conductive lead wire 36.
The quantity of first electrode 12 that flexible PCB is electrically connected to by the same first main lead 22 is 3, is now existed
The quantity of the first main lead 22 is reduced, in the case of ensureing increase unobvious in sense blind area in contact panel, ensures that the first master draws
The load of line 22 is superfluous in order to the IC debugging being subsequently connected with flexible PCB.Further, there is provided contact panel it is logical
Road quantity is identical with the number of channels of the contact panel of prior art, without changing first electrode 12 and second electrode 14
The binding of binding mode and contact panel and flexible PCB, contact panel provided in an embodiment of the present invention can use existing skill
The flexible PCB of art, without individually designed new flexible PCB, production cost is saved, has improved interchangeability, so as to drop
Low maintenance cost.
In a kind of embodiment, the first main lead 22 provided in an embodiment of the present invention is tin indium oxide lead, can be avoided
Need to set frame to block because of the first opaque main lead 22, therefore can further reduce at left and right sides of contact panel
Frame area.
It is semimetal semi-oxidized positioned at the outermost first main lead 22 of contact panel width in other embodiment
Indium tin lead, other first main leads 22 are tin indium oxide lead.It on the one hand can so avoid the first master because opaque
Lead 22 and need to set frame to block, therefore can further reduce the frame area at left and right sides of contact panel；The opposing party
Face can reduce impedance of the transparent indium tin oxide as the first main lead 22, improve effectiveness.
In contact panel provided in an embodiment of the present invention, same first electrode 12 is by two the first sub- leads 24 and together
One the first main lead 22 electrically connects.After a first sub- lead 24 for so ensuring to electrically connect with first electrode 12 is broken, still
It can so ensure the electric signal of first electrode 12 being accurately transferred to the first main lead 22.
The embodiment of the present invention also provides a kind of display device, including display panel and above-described contact panel, display
Panel is stacked with contact panel, and display panel output image simultaneously passes through the transparent region of contact panel to show.The present embodiment
In, display device includes mobile phone, tablet personal computer, TV etc..
Further, display device also includes system board, housing and battery, and system board electrically connects contact panel and shown
Show panel and control electrical connection contact panel and display panel work, battery is used to house mainboard, electricity to main board power supply, housing
Pond, contact panel and display panel, play protection display device device and effect attractive in appearance.
Because at least two first electrodes 12 by the same first main lead 22 are electrically connected to flexible PCB, it is not necessary to
Each first electrode 12 will electrically connect with a first main lead 22, therefore reduce positioned at the width side of contact panel
The quantity of the opaque conductive lead wire (the first main lead 22) of edge, so as to increase the width size of transparent region, contracting
Small frame, the corresponding viewing area for increasing display device, realizes narrow frame effect, improves Consumer's Experience.
The above disclosed power for being only several preferred embodiments of the present invention, the present invention can not being limited with this certainly
Sharp scope, one of ordinary skill in the art will appreciate that realizing all or part of flow of above-described embodiment, and weighed according to the present invention
Profit requires made equivalent variations, still falls within and invents covered scope.
Claims (15)
1. a kind of contact panel, electrically connect flexible PCB, it is characterised in that the contact panel includes at least one first electricity
Pole, at least one first main lead and at least one first sub- lead, the first main lead are located at the width of the contact panel
Spend the edge in direction, the opposite end of each first sub- lead respectively with a first main lead and one described the
One electrode electrically connects, and at least two first electrodes are electrically connected to the flexible circuit by the same first main lead
Plate.
2. contact panel according to claim 1, it is characterised in that be electrically connected to by the same first main lead
The first electrode quantity of flexible PCB is 2~6.
3. contact panel according to claim 2, it is characterised in that be electrically connected to by the same first main lead
The first electrode quantity of flexible PCB is 3~5.
4. contact panel according to claim 2, it is characterised in that be electrically connected to by the same first main lead
The first electrode quantity of flexible PCB is 2.
5. contact panel according to claim 2, it is characterised in that the line width of the first main lead is 1um~80um.
6. contact panel according to claim 5, it is characterised in that the line width of the first main lead is 10~40um.
7. contact panel according to claim 6, it is characterised in that the line width of the first main lead is 10~20um.
8. contact panel according to claim 4, it is characterised in that the contact panel also includes the second of array arrangement
Electrode, the second electrode are electrically connected to the flexible PCB, and first electrode stacking relative with the second electrode is set
Put to form capacitance structure.
9. contact panel according to claim 8, it is characterised in that the contact panel also include the second conductive lead wire and
3rd conductive lead wire, in the second electrode of same row, the second electrode of odd-numbered line passes through second conductive lead wire
It is electrically connected to the flexible PCB, the second electrode of even number line is electrically connected to described soft by the 3rd conductive lead wire
Property circuit board.
10. contact panel according to claim 1, it is characterised in that the bearing of trend and touch-control of the first main lead
Angle of the width of panel into substantially 90 degree.
11. contact panel according to claim 10, it is characterised in that the bearing of trend and touch-control of the first main lead
The width of panel is into 90 degree of angle.
12. contact panel according to claim 1, it is characterised in that the first main lead is tin indium oxide lead.
13. contact panel according to claim 1, it is characterised in that positioned at the outermost institute of contact panel width
It is semimetal semi-oxidized indium tin lead to state the first main lead, and other described first main leads are tin indium oxide lead.
14. contact panel according to claim 1, it is characterised in that the same first electrode passes through described in two
First sub- lead electrically connects with the same first main lead.
15. a kind of display device, it is characterised in that the display device includes display panel and claim 1 to 14 is any one
Contact panel described in, the display panel are stacked with the contact panel, and the display panel output image is simultaneously worn
The transparent region for crossing the contact panel is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442447.8A CN107390914A (en) | 2017-06-13 | 2017-06-13 | Contact panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710442447.8A CN107390914A (en) | 2017-06-13 | 2017-06-13 | Contact panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107390914A true CN107390914A (en) | 2017-11-24 |
Family
ID=60332283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710442447.8A Pending CN107390914A (en) | 2017-06-13 | 2017-06-13 | Contact panel and display device |
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| Country | Link |
|---|---|
| CN (1) | CN107390914A (en) |
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| CN108563351A (en) * | 2018-01-04 | 2018-09-21 | 京东方科技集团股份有限公司 | Touch base plate and touch device |
| CN108920008A (en) * | 2018-07-23 | 2018-11-30 | 意力(广州)电子科技有限公司 | Show equipment, touch panel, touch sensing and its manufacturing method |
| WO2020047866A1 (en) * | 2018-09-07 | 2020-03-12 | 深圳柔显系统技术有限公司 | Touch display panel, touch detection method, and touch display device |
| CN111708466A (en) * | 2020-07-28 | 2020-09-25 | 武汉天马微电子有限公司 | Touch display panel and display device |
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Address after: 518106 oufeiguang Science Park, HUAFA section of Songbai highway, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Applicant after: Ophiguang Group Co.,Ltd. Address before: 518106 oufeiguang Science Park, HUAFA section of Songbai highway, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Applicant before: OFilm Tech Co.,Ltd. Address after: 518106 oufeiguang Science Park, HUAFA section of Songbai highway, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Applicant after: OFilm Tech Co.,Ltd. Address before: 518106 oufeiguang Science Park, HUAFA section of Songbai highway, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Applicant before: Shenzhen OFilm Tech Co.,Ltd. |
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Effective date of registration: 20210304 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Applicant after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 518106 oufeiguang Science Park, HUAFA section of Songbai highway, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Applicant before: Ophiguang Group Co.,Ltd. |