CN106325580A - Pressure sensing device - Google Patents
Pressure sensing device Download PDFInfo
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- CN106325580A CN106325580A CN201510404544.9A CN201510404544A CN106325580A CN 106325580 A CN106325580 A CN 106325580A CN 201510404544 A CN201510404544 A CN 201510404544A CN 106325580 A CN106325580 A CN 106325580A
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- China
- Prior art keywords
- pressure sensitive
- pressure
- control electrode
- touch control
- holding wire
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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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
Abstract
The invention relates to the technical field of pressure sensing, and in particular to a pressure sensing device which can be used for detecting the pressure intensity. The pressure sensing device comprises a substrate, a conductive pattern layer and a pressure sensing signal wire, wherein the substrate comprises a first surface and a second surface; the first surface and the second surface are oppositely arranged; the conductive pattern layer is arranged on the first surface, comprises a plurality of pressure sensing electrodes and is used for sensing the touch pressure intensity; the pressure sensing signal wire is used for connecting the pressure sensing electrodes to a detection chip in a conducting manner and is of a hollow-out structure.
Description
[technical field]
The present invention relates to pressure sensing technologies field, permissible particularly to one
The pressure-sensing device of detection pressure dynamics.
[background technology]
At present in Display Technique field, conventional contact panel mainly has condenser type
Contact panel, electric resistance touch-control panel, optical touch control panel and surface acoustic wave
Formula contact panel, the contact panel of these kinds is mainly for detection of two dimensional surface
The position of region touch-control, processes the chip process according to position of touch feedback correspondence
Signal.And, wherein the most extensive with capacitance type touch-control panel range.
Finger is to enrich very much and complexity to the operation of contact panel, does not only has
The action " touched " also has the action of " pressure ", and current capacitance type touch-control panel is only
The position of " touching " is detected in realizing two dimensional surface, and cannot be in another one
Dimension detects the dynamics of " pressure ".Then, a kind of new Z axis can be detected
The pressure-sensing device pressing dynamics just arises at the historic moment.
Pressure-sensing is owing to deformation causes based on the conductive material after pressing
Resistance variations and be detected, and owing to deformation is the most small, the change of resistance
Change the most small, if change in resistance signal occurs decay in transmitting procedure
It would be possible to will not be detected.So, pressure touch signal effectively accurately
Transmission is the difficult problem that need overcome.
[summary of the invention]
For overcoming many defects of existing pressure-sensing device, the invention provides
A kind of new-type pressure-sensing device.
The present invention solves the scheme of technical problem and is to provide a kind of pressure-sensing dress
Put, including a substrate, including first surface and second surface, first surface and
Second surface is oppositely arranged；One conductive pattern layer, is arranged on first surface,
Including a plurality of pressure sensitive electrodes, in order to sense the dynamics of pressing；And a pressure
Induced signal line, in order to turn on the pressure sensitive electrode described in connection to a detection
Chip, described pressure sensitive holding wire is engraved structure.
Preferably, described pressure sensitive holding wire is metal wire.
Preferably, unit length pressure sensitive holding wire is by the vacancy section after hollow out
Territory area is more than or equal to the 40% of pressure sensitive holding wire wire body area.
Preferably, pressure sensitive holding wire is formed void region with multiple after hollow out
Several metal unit lines, the shape of metal unit line can be grid, tree-shaped,
Any one or a combination thereof of pitch of the laps loopback shape, its live width is less than 10 μm.
Preferably, the cabling of pressure sensitive holding wire is shaped as serpentine or " Z "
Shape or irregular curve shape.
Preferably, described conductive pattern layer also includes that a plurality of first direction touches
Control electrode and a plurality of second direction touch control electrode, this first direction touch control electrode
With second direction touch control electrode in order to detect position of touch, wherein said first party
To touch control electrode and second direction touch control electrode and described pressure sensitive electrode that
This is electrically insulated, and the most overlapping overlap joint of projection in vertical direction.
Preferably, the conducting of each first direction touch control electrode connects a first direction
Touch control electrode holding wire, the conducting of each second direction touch control electrode connects one second
Direction touch control electrode signal line, this first direction touch control electrode holding wire and second
Direction touch control electrode signal line and the material of pressure sensitive holding wire, structure, shape
Shape is identical.
Preferably, the conducting of each first direction touch control electrode connects a first direction
Touch control electrode holding wire, the conducting of each second direction touch control electrode connects one second
Direction touch control electrode signal line, this first direction touch control electrode holding wire and second
Direction touch control electrode signal line is with the material of pressure sensitive holding wire, structure not
With.
Preferably, including pressure sensitive district and bonding pad, pressure sensitive sets in district
Put described conductive pattern layer and pressure sensitive holding wire, in described bonding pad
Pressure sensitive holding wire and connection gasket, described pressure sensitive holding wire one are set
Change conductive pattern layer and the connection gasket of bonding pad connecting pressure sensitive district.
Preferably, farther include transition region, be positioned at touch-control sensing district and connection
Between district, the width of the pressure sensitive holding wire in transition region is Widening Design,
Its width is in pressure sensitive district 2-10 times of pressure induced signal line width.
Compared with prior art, the pressure-sensing device of the present invention is by pressure sensitive
Electrode and first direction touch control electrode and second direction touch control electrode are incorporated into same
On one basic same plane, and integrating when, pressure sensitive electricity
Pole, first direction touch control electrode and second direction touch control electrode use complementation not weigh
Folded shape design, compared to the knot being attached to touch screen outside traditional pressure-sensing
Structure, thickness is lower, and cost is lower, solves signal while reducing plate thickness
The problem that line is visual.
First embodiment uses the pressure sensitive electrode signal line of metal to conduct
Signal, low by metal resistance, can be prevented effectively from transmission signal process
The problem of signal attenuation caused because of self-resistance.But owing to working as pressure-sensing
When device engages use with display module, then require pressure sensitive electrode and signal
Line has light transmission, it is impossible to cause display module visual occlusion problem.Due to gold
The light transmission belonged to is poor, and pressure sensitive electrode signal line is engraved by the present invention
Empty design, can reduce the pressure sensitive electrode signal line display module to bottom
Vision stop problem, it is also possible to keep metal excellent signal transport properties.
Use the shape such as grid, tree-shaped, pitch of the laps loopback in shape in hollow out, and ensure
Every metal unit line at least two overlapped points, effectively prevents circuit from fractureing and makes
The bad connection problem become.
The bonding pad of the present invention uses integrated design with pressure sensitive district, it is not necessary to
In pressure sensitive district, binding region is fabricated separately bind with FPC, permissible
Effectively solve to bind, due to what holding wire too much caused, the problem that region increases,
Simplify processing procedure simultaneously, reduce cost.
The holding wire of transition region is used gradual change by some embodiments of the present invention
The design widened, can the bend resistance performance of enhancing signal.In other embodiments
The wire shaped of walking of holding wire from " L " shape, is become Z-shaped or serpentine or do not advises
Then shaped form, effectively reduces the holding wire caused due to light interference and visually asks
Topic, and avoid holding wire to block the problem showing pixel.
[accompanying drawing explanation]
Fig. 1 is the touch-control principle cross-section structure signal of pressure-sensing device of the present invention
Figure.
Fig. 2 is the touch-control principle planar structure signal of pressure-sensing device of the present invention
Figure.
Fig. 3 is that the cross-section structure of pressure-sensing device first embodiment of the present invention shows
It is intended to.
Fig. 4 is the conductive pattern layer of pressure-sensing device first embodiment of the present invention
Floor map.
Fig. 5 A, 5B, 5C are three kinds of structure for amplifying schematic diagrams at A shown in Fig. 4.
Fig. 6 A is the conductive pattern of pressure-sensing device the second embodiment of the present invention
Layer plane schematic diagram.
Fig. 6 B is the conductive pattern of pressure-sensing device the 3rd embodiment of the present invention
Layer plane schematic diagram.
Fig. 7 is the conductive pattern layer of pressure-sensing device the 4th embodiment of the present invention
Floor map.
Fig. 8 is the conductive pattern layer of pressure-sensing device the 5th embodiment of the present invention
Floor map.
Fig. 9 is the structure for amplifying schematic diagram of transition region shown in Fig. 8.
Figure 10 is the conductive pattern of pressure-sensing device sixth embodiment of the present invention
Layer plane schematic diagram.
Figure 11 A is the conductive pattern of pressure-sensing device the 7th embodiment of the present invention
Case floor map.
Figure 11 B is the conductive pattern of pressure-sensing device the 8th embodiment of the present invention
Case floor map.
Figure 12 is the Making programme of ninth embodiment of the invention pressure-sensing device
Figure.
[detailed description of the invention]
In order to make the purpose of the present invention, technical scheme and advantage are more clear bright
In vain, below in conjunction with accompanying drawing and embodiment, the present invention is carried out the most in detail
Explanation.Should be appreciated that specific embodiment described herein is only in order to explain
The present invention, is not intended to limit the present invention.
Refer to Fig. 1 and Fig. 2, be the structure of pressure-sensing device 800 of the present invention
Schematic diagram, present invention pressure-sensing device described later is all applicable to this principle, but
It is not limited thereto.Described pressure-sensing device 800 includes a substrate 802,
A pressure sensitive layer 803 it is attached and formed with, at this pressure sensitive layer on substrate 802
803 tops (herein and described later " on " or D score be relative position, and
Non-absolute definition, can be understood as also becoming following table when upper surface overturns simultaneously
Face) also it is covered with a cover plate 801, cover plate 801 and touching object (finger or tactile
Control pen) contact.
Described pressure sensitive layer 803 includes multiple pressure extended along its length
Power induction electrode 8031, the plurality of pressure sensitive electrode 8031 is at pressure sensitive layer
On 803 rule or irregularly arrange.Herein, interlaced arrangement is become with two bar shapeds
Pressure sensitive electrode 8031 carries out schematic illustration.
After user finger presses this cover plate 801, feeling of stress will be caused
Layer 803 is answered to produce miniature deformation, the corresponding pressure sensitive electricity pressing district 805
The line length of pole 8031 will change (because being pressed), and then affect feeling of stress
Answer the equivalent resistance of electrode 8031.Therefore, when the power difference pressed, pressure
Power induction electrode 8031 will produce different change in resistance.If the power pressed
Relatively big, then the resistance of pressure sensitive electrode 8031 has bigger variable quantity；Phase
Instead, if the power pressed is less, then the resistance of pressure sensitive electrode 8031
There is small change amount.Therefore, by measuring pressure sensitive electrode 8031
Change in resistance amount, just can determine whether out the power pressed.
Owing to pressure sensitive electrode 8031 is generally made by identical material, pressure
The material of power induction electrode 8031 selects important parameter, the i.e. material being considered as
The strain gauge factor (the Gage Factor of material；GF).The strain gauge factor of material
(Gage Factor；GF) shown in mode calculated as below:
GF=(Δ R/R)/(Δ L/L)；
Wherein, R is conductive material equivalent resistance when the most touched, and Δ R is
Change in resistance amount after conductive material is touched, L is that conductive material is the most touched
Time line length, Δ L be conductive material touched after line length variable quantity.One
In embodiment, in order to preferably detect the size of Δ R, the strain of conductive material
Meter factor GF system is more than 0.5, in order to provide preferably sensitivity.
Owing to the pressure sensitive electrode 8031 of the example above is elongated linear,
So the change of Δ R depends on Δ L.But, when pressure sensitive electrode 8031
Make and there is the square, oval and other irregular figures of less length-width ratio
Time, the change of Δ R will depend primarily upon the deformation of pressure sensitive electrode 8031
Amount, and the most single depend on Δ L.
Referring to Fig. 3, the pressure-sensing device 10 of first embodiment of the invention wraps
Including substrate 103 and a conductive pattern layer 109, substrate 103 includes one first table
Face 1031 and second surface 1033, first surface 1031 and second surface 1033
Be oppositely arranged, this conductive pattern layer 109 direct forming on first surface 1031,
In order to sense the dynamics size pressed.
Refer to Fig. 4, conductive pattern layer 109 include three identical with 1 × 3
The pressure sensitive electrode 1097 of array arrangement, the most only enumerates few
The pressure sensitive electrode 1097 of amount, in actual product, pressure sensitive electrode
The quantity of 1097 can be more, and arrangement mode can be N × M (N of rectangle
It is the positive integer more than 0 with M) mode array arrangement can also radius be R
The circumference array arrangement of (R is the positive number more than 0), it is also possible to for above-mentioned two
The combination of the mode of kind or other irregular arrangement modes.Wherein, pressure sensitive electricity
Pole 1097 is elongated wire body shape, and its X, Y-direction greatest length, width are little
In equal to 10mm, preferably smaller than equal to 5mm.
Described each pressure sensitive electrode 1097 is collocated with a pressure sensitive electricity
Pole holding wire 1065, pressure sensitive electrode signal line 1065 includes a transmission line
1067 and one receive line 1069, send line 1067 and snap into pressure sensitive electrode
The wherein one end of 1097, receives line 1069 and snaps into pressure sensitive electrode 1097
The other end, and send line 1067 and receive line 1069 and simultaneously turn on and be connected to
Connection gasket 1081, connection gasket 1081 is used for connecting detection chip 108.Send line
1067, pressure sensitive electrode 1097, reception line 1069 form one and can detect pressure
The galvanic circle of power induction electrode 1097 change in resistance, change in resistance can transmit to
Detection chip 108 processes.The distributed areas of pressure sensitive electrode 1097 and
The distributed areas of holding wire constitute the pressure sensitive district 111 of diagram.
But due to when pressure-sensing device 10 engages use with display device,
The described line 1067 that sends locally is exposed to display device with receiving line 1069
Above viewing area, so described transmission line 1067 and reception line 1069 need
There is printing opacity, conductive characteristic.Simultaneously because pressure sensitive electrode signal line 1065
Needing detected resistance variable quantity, metal as sending line 1067 and will receive line
The preferred material of 1069.Because pressure sensitive electrode 1097 produces before and after pressure
Raw change in resistance is the most small, if using metallic conductance, by metal resistance
Low, can be prevented effectively from because of pressure sensitive electrode signal in transmission signal process
Line 1065 self-resistance and the problem of signal attenuation that causes.It can be gold, silver,
The high conductive metal simple-substances such as copper, aluminum, molybdenum, ferrum or its composite are such as
The electric wire that molybdenum-aluminum-molybdenum is made.When selecting metal as sending line 1067 He
When receiving line 1069, signal transmission performance reaches optimal, but due to metal
Light transmission is poor, can block the display effect of the display module of lower section on the other hand
Really, visual variation can be made.For solving this problem, further referring to Fig. 5 A.
Send line 1067 and be designed as engraved structure, to receive line with receiving line 1069
Illustrating as a example by 1069, the longitudinal section of wire body is a length-width ratio more than 1, very
To the rectangle more than 10.Wire body is internally formed vacancy section 1068, vacancy section 1068
It is intervally arranged by the non-conductive clear area of multiple rhombuses and is formed.Remnants after hollow out
A plurality of metal unit line 1062 connects with rhombus net trellis cross-conduction, and formation is led
Power grid 1064.Wherein, in unit length, the area of vacancy section 1068 is more than
In holding wire wire body longitudinal section area 40%；The live width of metal unit line 1062
Less than 10 μm, preferably smaller than 5 μm.In figure, any one metal unit line
Overlapped points 1066 at least two on 1062, prevents from causing in etching process portion
Parting belongs to unit wires 1062 to interrupt and causes bad connection.
Refer to Fig. 5 B, send line 1067 and the engraved structure receiving line 1069
Can also be tree, illustrate as a example by receiving line 1069, in figure,
Overlapped points 1066 at least two on any one metal unit line 1062, anti-
Only etching process causes part metals unit wires 1062 to interrupt and cause connecting
Bad.
Refer to Fig. 5 C, send line 1067 and the engraved structure receiving line 1069
Can also be pitch of the laps loopback shape structure, illustrate as a example by receiving line 1069,
Overlapped points 1066 at least two in figure, on any one metal unit line 1062
Individual, prevent from etching process causing part metals unit wires 1062 interrupt and cause
Bad connection.
Refer to the master of Fig. 6 A, second embodiment of the invention and first embodiment
Distinguish and be that conductive pattern layer 209 includes that three rows be arranged in parallel and with 3 × 3
Nine pressure sensitive electrodes 2097 of mode array arrangement.Three pressure of each row
Induction electrode 2097 connects a transmission line 2067 and and receives line 2069, in being positioned at
Between pressure sensitive electrode 2097 direct with the pressure sensitive electrode 2097 of both sides
Interconnection conducting.
Refer to the master of Fig. 6 B, third embodiment of the invention and first embodiment
Distinguish and be that conductive pattern layer 309 includes that three rows be arranged in parallel and with 3 × 3
Nine pressure sensitive electrodes 3097 of mode array arrangement.These nine pressure sensitive electricity
3097, pole sends line 3067 and a reception roundabout song of line 3069 by one
Ring connects around conducting.Compared with first embodiment, the present embodiment and second is in fact
The circuit for detecting executing example required detecting resistance variations is less, and it is right to be greatly decreased
Should be in all circuit for detecting of pressure sensitive electrode 3097 and control circuit
Circuit layout area.
Referring to Fig. 7, fourth embodiment of the invention is main with first embodiment
Difference is that conductive pattern layer 409 includes three with the conduction of 1 × 3 array arrangement
Electrode 4091, the most only enumerates a small amount of conductive electrode 4091.
Wherein, arbitrary conductive electrode 4091 all include first direction touch control electrode 4093,
Second direction touch control electrode 4095 and pressure sensitive electrode 4097, three is in shape
Upper complementary split forms the conductive pattern shape of a rectangle.First direction touch-control electricity
What pole 4093 was radially arranged on correspondence has the of radial inward space
Two direction touch control electrodes 4095 are internal, and first direction touch control electrode 4093 includes many
Individual touch control electrode protuberance 4092 and one is positioned at the touch control electrode ball of middle part
Body 4094, during each touch control electrode protuberance 4092 with touch control electrode spheroid 4094 is
The heart dissipates setting to surrounding, and being spaced can be similar and different.Second direction
Touch control electrode 4095 is internally formed multiple touch control electrode groove 4096.By so
Set-up mode, realize first direction touch control electrode 4093 and second in shape
The cross complementary of direction touch control electrode 4095, arranges the touch control electrode of different directions
Cloth is on a wherein surface of substrate 103.The number of touch control electrode protuberance 1092
Amount is not limited to seven in diagram, can also be any number of more than 2.
Pressure sensitive electrode 4097 enters from the side of each conductive electrode 4091, warp
Cross first direction touch control electrode 4093 and second direction touch control electrode 4095 is intersected
In the space formed after complementation, finally the opposite side from each conductive electrode 4091 draws
Going out, pressure sensitive electrode 4097 is arranged on first direction touch control electrode 4093 and
Between two direction touch control electrodes 4095.So, between three kinds of conductive electrodes each other
Non-overlapping overlap joint, to realize being electrically insulated..In force, first direction touches
Control electrode 4093 and second direction touch control electrode 4095 and described pressure sensitive electricity
The most overlapping overlap joint of pole 4097 projection in vertical direction.More preferably, first party
To touch control electrode 4093, second direction touch control electrode 4095 and pressure sensitive electrode
4097 complete complementaries, form the single-layer type conductive pattern layer of non-overlapping copies overlap joint
409.Owing to forming complementary design in shape, the most not can be appreciated that splicing
Gap, electrode pattern visuality is little.Wherein, pressure sensitive electrode 4097 is thin
Long wire body shape, its X, Y-direction greatest length, width less than or equal to 10mm,
Preferably smaller than equal to 5mm.
Described each first direction touch control electrode 4093 is collocated with one first
Direction touch control electrode signal line 4061, scans first direction touch control electrode 4093
To signal be transferred to detection chip 408.This first direction touch control electrode signal
Line 4061 electrically conducts with the surrounding edge of first direction touch control electrode 4093.The
One direction touch control electrode signal line 4061 can have transparent, conductive characteristic, for
The metal oxide-type materials such as ITO, IZO, nano-silver thread, NANO CRYSTAL COPPER WIRE,
Any one or its group of Graphene, polyaniline or other conducting polymer composites
Close.Can also be conductive metal material, as gold, silver, copper, aluminum, molybdenum, ferrum,
Molybdenum-aluminum-molybdenum etc..
Described each second direction touch control electrode 4095 is collocated with one second
Direction touch control electrode signal line 4063, scans second direction touch control electrode 4095
To signal be transferred to detection chip 408.This second direction touch control electrode signal
Line 4063 electrically conducts with the surrounding edge of second direction touch control electrode 4095.The
Two direction touch control electrode signal lines 4063 can have transparent, conductive characteristic, for
The metal oxide-type materials such as ITO, IZO, nano-silver thread, NANO CRYSTAL COPPER WIRE,
Any one or its group of Graphene, polyaniline or other conducting polymer composites
Close.Can also be conductive metal material, as gold, silver, copper, aluminum, molybdenum, ferrum,
Molybdenum-aluminum-molybdenum etc..
Transmission line 4067 He of each pressure sensitive electrode 4097 described collocation
Receive line 4069 and keep identical with embodiment one.
First direction touch control electrode holding wire 4061 and second direction touch control electrode
Holding wire 4063 can use and send line 4067 and receive line 4069 material, knot
The engraved structure metal wire that structure, shape are the most identical；Can also use and send line
4067 transparent conductive materials different with receiving line 4069.
Referring to Fig. 8, fifth embodiment of the invention is main with first embodiment
Difference is that conductive pattern layer 509 includes pressure sensitive district 511 and bonding pad
515, between pressure sensitive district 511 and bonding pad 515, a transition region is set
513.Three are arranged with the conduction of 1 × 3 array arrangement electricity in pressure sensitive district 511
Pole 5091 and the holding wire of correspondence thereof.Multiple connection gasket is included in bonding pad 515
5081, each connection gasket 5081 directly with each pressure sensitive holding wire 5065
First direction touch control electrode holding wire 5061 or second direction touch control electrode letter
Number line 5063 is directly connected to, and bonding pad 515 is extended to pressure sensitive district 511
Outward, pressure sensitive district 511 need not be separately provided a binding region.So
Arrange, can integrated setting pressure sensitive district 511 and even in the same plane
Meet district 515, can effectively solve owing to holding wire too much causes pressure sensitive
The problem that the binding region in district 511 increases, simplifies processing procedure simultaneously, reduces cost.
Further referring to Fig. 9, during making use, bonding pad 515
Can repeatedly be bent, be caused the mistake between bonding pad 515 and pressure sensitive district 511
Cross the problem that district 513 is easy to bending broken string occur.In order to improve transition region 513
The bend resistance intensity of interior holding wire, the present embodiment can be by the letter in transition region 513
Number line does the design widened.The mean breadth of same holding wire in transition region 513
For in pressure sensitive district 511 or bonding pad 515 2-10 times of this holding wire width,
Preferably 3-6 times.Described widening can be that gradual change is widened, when gradual change is widened from
The top and bottom of transition region 513 are gradually widened to middle part respectively, the most gradually
In the case of change, the longitudinal center position of transition region 513 is Breadth Maximum.When
So, the Widening Design of transition region 513 mainly solves the anti-disconnected problem of bending resistance, adds
Wide mode and to widen size can be other gradual design uniform, uneven,
Constant width dimension designs, and upper width is more than lower width, and intermediate width is slightly
Less than modes of texturing such as two ends width, as long as transition region 413 can be improved
Bend resistance intensity, all goes for this.
Referring to Figure 10, sixth embodiment of the invention is main with the 5th embodiment
Difference is that the conductive electrode 6091 of conductive pattern layer 609 includes multiple first party
To the second direction touch control electrode 6095 of touch control electrode 6093 and equal number, with
And a pressure sensitive electrode 6097.First direction touch control electrode 6093 and second party
Being right angled triangle to touch control electrode 6095 and area is identical, first direction touches
Control electrode 6093 includes a first direction touch control electrode hypotenuse portion 6098, second party
A second direction touch control electrode hypotenuse portion 6099 is included to touch control electrode 6095.The
One direction touch control electrode 6093 and second direction touch control electrode 6095 are the most each other
Arranged in a crossed manner, pressure sensitive electrode 6097 curve is arranged on first direction touch-control electricity
Hypotenuse portion, pole 6098 and second direction touch control electrode hypotenuse portion 6099 intersect
In the space formed.
Each first direction touch control electrode 6093 arrange in pairs or groups one first direction touch-control electricity
Pole holding wire 6061, each second direction touch control electrode 6095 includes a second party
To touch control electrode holding wire 6063, and 6097, pressure sensitive electrode is arranged in pairs or groups one
Line sending 6067 and one receives line 6069, sends line 6067 and turns on junction curve setting
Pressure sensitive electrode 6097 initiating terminal, receive line 6069 and turn on junction curve and set
Pressure sensitive electrode 6097 clearing end put.The transmission line 6067 of the present embodiment,
Receive line 6069 and the first touch control electrode holding wire 6061, second direction touch-control electricity
Pole holding wire 6063 is identical material, identical structure, the holding wire of same shape,
It is the metallic signal lines of engraved structure, as shown in earlier figures 5A, 5B, 5C.
As such, it is possible to by sputter, gold-tinted technological forming three kind in making together
The holding wire of type, simplifies processing procedure, cost-effective.
Refer to the master of Figure 11 A, seventh embodiment of the invention and first embodiment
Distinguish be conductive pattern layer 709 holding wire 706 walk wire shaped.From leading
The holding wire 706 that electricity electrode 7091 is drawn to be substantially connected to inspection in Z-shaped
Survey in chip 708.Due to the pixel arrangement of display module be array laterally and
Longitudinal set-up mode, holding wire 706 makes for metal material, light transmission ratio
Poor, if also using horizontal and vertical set-up mode, it is likely to result in whole
There is dark fringe, impact visuality in individual laterally or longitudinally display.So, herein
Z-shaped cabling mode is used to replace " L " type cabling side in embodiment one
Formula, the problem that can be prevented effectively from dark fringe, another conveniently can also effectively drop
The low visual problem of holding wire 706 caused due to light interference.
Refer to the master of Figure 11 B, eighth embodiment of the invention and first embodiment
Distinguish be conductive pattern layer 809 holding wire 806 walk wire shaped.From leading
The holding wire 806 that electricity electrode 8091 is drawn substantially to carry out cabling in serpentine.
Its problem solved is identical with the 7th embodiment with the effect of generation.
In addition, the wire shaped of walking of holding wire 806 can also be for other rules
Or irregular curve cabling form, the problem that dark fringe can be solved.
Referring to Figure 12, ninth embodiment of the invention provides a kind of pressure-sensing
The manufacture method of device 10, former described in the pressure-sensing device 10 of the 4th embodiment
Part and label be applicable to following manufacture method embodiment, the method include with
Lower step:
S11 a: transparency carrier 103 is provided.Described substrate 103 can be firm
Property substrate, such as glass, strengthen glass, sapphire glass etc.；Can also be soft
Property substrate, as PEEK (polyetheretherketone, polyether-ether-ketone),
PI (Polyimide, polyimides), PET (polyethylene
Terephthalate, polyethylene terephthalate),
PC (polycarbonate, Merlon Merlon), PES (polyethylene
Glycol succinate, polyethylene glycol succinate), PMMA
(polymethylmethacrylate, polymethyl methacrylate),
PVC (Polyvinyl chloride, polrvinyl chloride), PP (Polypropylene,
Polypropylene) and any both material such as complex.
S12: form transparent conduction on a wherein surface of described substrate 103
Patterned layer 109.The material of conductive pattern layer 109 is the metal oxygens such as ITO, IZO
Change composition material, nano-silver thread, NANO CRYSTAL COPPER WIRE, Graphene, polyaniline or its
Any one or a combination thereof of his conducting polymer composite.
S13: formed electric with the pressure sensitive of the metal of conductive pattern layer 109 overlap joint
Pole holding wire 1065.Sputter one metal level outside conductive pattern layer 109 is logical
Cross gold-tinted processing procedure and form the pressure sensitive electrode signal line 1065 of metal, this pressure
Induction electrode holding wire 1065 is engraved structure.
S14: at conductive pattern layer 109 and pressure sensitive electrode signal line 1065
On insulating protective layer is set.Protection forms conductive pattern layer on a substrate 103
109 and pressure sensitive electrode signal line 1065 from external world.
Compared with prior art, the pressure-sensing device 40 of the present invention is by feeling of stress
Answer electrode 4097 and first direction touch control electrode 4093 and second direction touch-control electricity
Pole 4095 is incorporated on same basic same plane, and integrate time
Wait, pressure sensitive electrode 4097, first direction touch control electrode 4093 and second party
Complementary nonoverlapping shape is used to design, compared to tradition to touch control electrode 4095
Pressure-sensing outside be attached to the structure of touch screen, thickness is lower, and cost is lower,
Solve, while reducing plate thickness, the problem that holding wire is visual.
First embodiment uses the pressure sensitive electrode signal line 1065 of metal
Conducted signal, low by metal resistance, can be effective in transmission signal process
Avoid the problem of signal attenuation caused because of self-resistance.But owing to working as pressure
When sensing device 10 engages use with display module, then require pressure sensitive electrode
1097 and holding wire there is light transmission, it is impossible to cause display module visual occlusion ask
Topic.Owing to the light transmission of metal is poor, pressure sensitive electrode is believed by the present invention
Number line 1065 carries out hollow out design, can reduce pressure sensitive electrode signal line
To bottom, 1065 show that the vision of module stops problem, it is also possible to keep metal
Excellent signal transport properties.Hollow out use in shape grid, tree-shaped, around
Ring such as returns at the shape, and ensure every metal unit line 1062 at least two take
Contact 1066, effectively prevents circuit from fractureing the bad connection problem caused.
The bonding pad 515 of the present invention uses integrated setting with pressure sensitive district 511
Meter, it is not necessary to binding region is fabricated separately in pressure sensitive district and ties up with FPC
Fixed, can effectively solve the binding region owing to holding wire too much causes and increase
Problem, simplify processing procedure simultaneously, reduce cost.
The holding wire of transition region 513 is used gradually by some embodiments of the present invention
Become the design widened, can the bend resistance performance of enhancing signal.Other embodiments
Middle the wire shaped of walking of holding wire is become Z-shaped or serpentine from " L " shape
Or irregular curve type, effective reduction can due to the holding wire that light interference causes
Depending on problem, and holding wire is avoided to block the problem showing pixel.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit
The present invention processed, all any amendments made within the principle of the present invention, equivalent
Within replace and improvement etc. all should comprise protection scope of the present invention.
Claims (10)
1. a pressure-sensing device, it is characterised in that including:
One substrate, including first surface and second surface, the first table
Face and second surface are oppositely arranged；
One conductive pattern layer, is arranged on first surface, including multiple
Several pressure sensitive electrodes, in order to sense the dynamics of pressing；And
One pressure sensitive holding wire, in order to turn on the pressure described in connection
Power induction electrode is to a detection chip, described pressure sensitive signal
Line is engraved structure.
2. pressure-sensing device as claimed in claim 1, its feature
It is: described pressure sensitive holding wire is metal wire.
3. pressure-sensing device as claimed in claim 1, its feature
It is: unit length pressure sensitive holding wire is by the hollow out after hollow out
Region area is more than or equal to pressure sensitive holding wire wire body area
40%.
4. pressure-sensing device as claimed in claim 3, its feature
Be: pressure sensitive holding wire by after hollow out formed void region and
A plurality of metal unit lines, the shape of metal unit line can be net
Lattice, any one or a combination thereof of tree-shaped, pitch of the laps loopback shape, its
Live width is less than 10 μm.
5. pressure-sensing device as claimed in claim 1, its feature
It is: the cabling of pressure sensitive holding wire is shaped as serpentine or " Z "
Shape or irregular curve shape.
6. the pressure-sensing dress as described in any one of claim 1-5
Put, it is characterised in that: described conductive pattern layer also includes plural number
Individual first direction touch control electrode and a plurality of second direction touch-control electricity
Pole, this first direction touch control electrode and second direction touch control electrode are used
To detect position of touch, wherein said first direction touch control electrode and
Second direction touch control electrode and described pressure sensitive electrode are the most electrical
Insulation, and the most overlapping overlap joint of projection in vertical direction.
7. pressure-sensing device as claimed in claim 6, its feature
It is: the conducting of each first direction touch control electrode connects a first party
To touch control electrode holding wire, each second direction touch control electrode turns on
Connecting a second direction touch control electrode holding wire, this first direction touches
Control electrode signal line and second direction touch control electrode holding wire and pressure
The material of induced signal line, structure, shape are identical.
8. pressure-sensing device as claimed in claim 6, it is special
Levy and be: the conducting of each first direction touch control electrode connects one first
Direction touch control electrode signal line, each second direction touch control electrode is led
Lead to connect a second direction touch control electrode holding wire, this first direction
Touch control electrode holding wire and second direction touch control electrode holding wire and pressure
The material of power induced signal line, structure are different.
9. the pressure-sensing dress as described in any one of claim 1-5
Put, it is characterised in that: include pressure sensitive district and bonding pad, pressure
Described conductive pattern layer and pressure sensitive letter are set in power induction zone
Number line, arranges pressure sensitive holding wire and company in described bonding pad
Connection pad, described pressure sensitive holding wire integration connects pressure sensitive
The conductive pattern layer in district and the connection gasket of bonding pad.
10. pressure-sensing device as claimed in claim 9, it is special
Levy and be: farther include transition region, be positioned at touch-control sensing district and
Between bonding pad, the width of the pressure sensitive holding wire in transition region
For Widening Design, its width is pressure sensitive letter in pressure sensitive district
2-10 times of number line width.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404544.9A CN106325580B (en) | 2015-07-10 | 2015-07-10 | pressure sensing device |
| TW105208048U TWM529883U (en) | 2015-07-10 | 2016-05-30 | Pressure-sensing device |
| TW105116902A TWI590127B (en) | 2015-07-10 | 2016-05-30 | Pressure-sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404544.9A CN106325580B (en) | 2015-07-10 | 2015-07-10 | pressure sensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106325580A true CN106325580A (en) | 2017-01-11 |
| CN106325580B CN106325580B (en) | 2023-10-17 |
Family
ID=57726093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510404544.9A Active CN106325580B (en) | 2015-07-10 | 2015-07-10 | pressure sensing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106325580B (en) |
| TW (2) | TWM529883U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247921A (en) * | 2017-05-15 | 2017-10-13 | 华勤通讯技术有限公司 | A kind of inducing method and device |
| CN107656191A (en) * | 2017-09-25 | 2018-02-02 | 京东方科技集团股份有限公司 | This pressure condition detection components, system and method |
| CN110023891A (en) * | 2019-01-09 | 2019-07-16 | 京东方科技集团股份有限公司 | Pressure touch structure, pressure touch panel, display device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106843580B (en) * | 2017-01-16 | 2019-10-18 | 业成科技（成都）有限公司 | Display device |
| TWI673037B (en) * | 2018-07-05 | 2019-10-01 | 長庚大學 | Multi-point sensing device |
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| JP2009047670A (en) * | 2007-08-23 | 2009-03-05 | Denso Corp | Pressure sensor |
| CN102004573A (en) * | 2010-07-28 | 2011-04-06 | 深圳市汇顶科技有限公司 | Touch detection system and detection method thereof |
| CN102132234A (en) * | 2008-08-27 | 2011-07-20 | 麦孚斯公司 | Touch-sensing panel including electrode-integrated window, and manufacturing method thereof |
| KR20130014261A (en) * | 2011-07-29 | 2013-02-07 | 엘지이노텍 주식회사 | Touch window |
| US20150070305A1 (en) * | 2013-09-11 | 2015-03-12 | Samsung Display Co., Ltd. | Touch sensing display device |
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- 2016-05-30 TW TW105116902A patent/TWI590127B/en active
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| JP2009047670A (en) * | 2007-08-23 | 2009-03-05 | Denso Corp | Pressure sensor |
| CN102132234A (en) * | 2008-08-27 | 2011-07-20 | 麦孚斯公司 | Touch-sensing panel including electrode-integrated window, and manufacturing method thereof |
| CN102004573A (en) * | 2010-07-28 | 2011-04-06 | 深圳市汇顶科技有限公司 | Touch detection system and detection method thereof |
| KR20130014261A (en) * | 2011-07-29 | 2013-02-07 | 엘지이노텍 주식회사 | Touch window |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247921A (en) * | 2017-05-15 | 2017-10-13 | 华勤通讯技术有限公司 | A kind of inducing method and device |
| CN107247921B (en) * | 2017-05-15 | 2023-11-21 | 华勤技术股份有限公司 | Induction method and device |
| CN107656191A (en) * | 2017-09-25 | 2018-02-02 | 京东方科技集团股份有限公司 | This pressure condition detection components, system and method |
| CN110023891A (en) * | 2019-01-09 | 2019-07-16 | 京东方科技集团股份有限公司 | Pressure touch structure, pressure touch panel, display device |
| CN110023891B (en) * | 2019-01-09 | 2022-11-25 | 京东方科技集团股份有限公司 | Pressure touch structure, pressure touch panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI590127B (en) | 2017-07-01 |
| TWM529883U (en) | 2016-10-01 |
| TW201702841A (en) | 2017-01-16 |
| CN106325580B (en) | 2023-10-17 |
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