CN207352589U - Pressure sensitive sensor, touch display screen component and electronic device - Google Patents
Pressure sensitive sensor, touch display screen component and electronic device Download PDFInfo
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- CN207352589U CN207352589U CN201721362409.3U CN201721362409U CN207352589U CN 207352589 U CN207352589 U CN 207352589U CN 201721362409 U CN201721362409 U CN 201721362409U CN 207352589 U CN207352589 U CN 207352589U
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Abstract
The utility model discloses a kind of pressure sensitive sensor, touch display screen component and electronic device, touch display screen component and electronic device include pressure sensitive sensor.Pressure sensitive sensor includes base material, the first conductive layer and the second conductive layer.First conductive layer includes the first strain inductor group being in series by the first strain inductor and the second strain inductor.Second conductive layer includes the second strain inductor group being in series by the 3rd strain inductor and the 4th strain inductor.First strain inductor, the second strain inductor, the 3rd strain inductor and the 4th strain inductor connect and compose Wheatstone bridge formula pressure sensitive unit.The pressure sensitive sensor of the utility model embodiment can detect the pressure change in touch display screen X/Y plane.When touch display screen is under pressure, touch display screen will not directly be extruded, so as to avoid influencing the display of touch display screen.
Description
Technical field
Pressure sensitive field is the utility model is related to, more particularly to a kind of pressure sensitive sensor, touch display screen component
And electronic device.
Background technology
In the related art, touch the pressure sensitive scheme majority of display field and pressure detected with the deformation of Z-direction,
But this deformation with Z-direction can directly extrude touch display screen to detect pressure, applying for a long time may
Touch display screen is influenced to show.
Utility model content
The embodiment of the utility model provides a kind of pressure sensitive sensor, touch display screen component and electronics dress
Put.
The pressure sensitive sensor of the utility model embodiment, for touch display screen component, the pressure sensitive passes
Sensor includes：
Base material, the base material include upper and lower surface, the base material offer through the upper surface and it is described under
Surface and first conductive hole and the second conductive hole at interval；
First conductive layer, first conductive layer are arranged on the upper surface, and first conductive layer includes the first strain
Inductor group, the first strain inductor group include the first strain inductor and the second strain inductor of series connection, and described the
One strain inductor and the second strain inductor are connected the first node to be formed positioned at the upper surface；With
Second conductive layer, second conductive layer are arranged on the lower surface, and second conductive layer includes the second strain
Inductor group, the second strain inductor group include the 3rd strain inductor and the 4th strain inductor of series connection, and described the
Three strain inductors and the 4th strain inductor are connected the section point to be formed positioned at the lower surface；
The first strain inductor, the second strain inductor, the 3rd strain inductor and the described 4th should
It is perpendicular to one another to become the sensitive grid bearing of inductor, the first strain inductor passes through described the with the described 4th strain inductor
One conductive hole connects and forms the 3rd node, and the second strain inductor passes through described second with the described 3rd strain inductor
Conductive hole connects and forms fourth node, and the first strain inductor, the second strain inductor, the 3rd strain are felt
Device and the 4th strain inductor is answered to connect and compose Wheatstone bridge formula pressure sensitive unit.
The pressure sensitive sensor of the utility model embodiment, the Wheatstone bridge formula being made of four strain inductors
Pressure sensitive unit, can be applied to the pressure detecting of deformation in X/Y plane.Pressure sensitive sensor application is shown in touch
During screen assembly, the pressure change in touch display screen X/Y plane is detected., will not be aobvious to touching when touch display screen is under pressure
Display screen directly extrudes, so as to avoid influencing the display of touch display screen.
In some embodiments, the first strain inductor, the second strain inductor, the 3rd strain sense
It is 120 ohm to 50M ohm to answer the Standard resistance range of device and the 4th strain inductor.
In this way, the Standard resistance range change of strain inductor is greatly, preferably Standard resistance range can be selected according to demand.
In some embodiments, the first strain inductor, the second strain inductor, the 3rd strain sense
Answer device and it is described 4th strain inductor in it is at least one be in detour bending structure.
In this way, ensureing that strain inductor not only has certain resistance value, but also will not seem too long.
In some embodiments, the first strain inductor and the 4th strain inductor are spatially overlapping,
The second strain inductor and the 3rd strain inductor are spatially overlapping.
In this way, the first strain inductor group is arranged on the upper surface of base material, the second strain inductor group is arranged on base material
Lower surface, two strain inductor groups are spatially overlapping, reduce space hold.
In some embodiments, first node orthographic projection on the substrate and the section point are described
Orthographic projection on base material is overlapping at least in part.
In this way, first node and section point are spatially overlapping at least in part, the space availability ratio of base material is improved.
In some embodiments, the quantity of the pressure sensitive unit is multiple that the multiple pressure sensitive unit exists
Arranged on the base material in array.
In this way, multiple pressure sensitive units are used to detect the pressure size for acting on touch display screen, can be according to reality
Demand sets the number of pressure sensitive unit.
In some embodiments, the size of the pressure sensitive unit is 20mm2To 25cm2。
In this way, the size of pressure sensitive unit is 20mm2To 25cm2, it is suitable size can be made according to demand
Pressure sensitive unit.
In some embodiments, the pressure sensitive sensor include connecting the first node, the section point,
The lead of 3rd node and the fourth node, the lead is from the first node, the section point, the described 3rd
The a side of node and the fourth node through the base material extends to another side of the base material, described a side with it is described
Another side is the sides adjacent of the base material.
In this way, lead connects four nodes and flexible PCB structure Wheatstone bridge detection circuit.Lead is arranged on base
Material side can reduce influence of the touch display screen screen deformation to lead resistance value, cause pressure greatly to avoid lead change in resistance
Detection is inaccurate.
In some embodiments, the lead is separately positioned on the upper surface and the lower surface.
In this way, lead connects four nodes and flexible PCB structure Wheatstone bridge detection circuit.Work as touch display screen
When being under pressure, the resistance variations of Wheatstone bridge detection circuit detection strain inductor are to detect pressure change.
The touch display screen component of the utility model embodiment, including：
Pressure sensitive sensor described in any of the above-described embodiment；With
Touch display screen, the touch display screen are stacked with the pressure sensitive sensor.
In the touch display screen component of the utility model embodiment, pressure sensitive sensor can detect touch display screen
Pressure change in X/Y plane.When touch display screen is under pressure, touch display screen will not directly be extruded, so as to avoid shadow
Ring the display of touch display screen.
The electronic device of the utility model embodiment, including housing and the touch display screen group described in the above embodiment
Part, the touch display screen component are arranged on the housing.
In the electronic device of the utility model embodiment, touch display screen component includes pressure sensitive sensor and touch
Display screen.Pressure sensitive sensor can detect the pressure change in touch display screen X/Y plane.Pressed in touch display screen
During power, touch display screen will not directly be extruded, so as to avoid influencing the display of touch display screen.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
In description of the above-mentioned and/or additional aspect and advantage of the utility model from combination accompanying drawings below to embodiment
It will be apparent and be readily appreciated that, wherein：
Fig. 1 is the structure diagram of the pressure sensitive sensor of the utility model embodiment；
Fig. 2 is the structure diagram of the pressure sensitive sensor of another embodiment of the utility model；
Fig. 3 is the structure diagram of the base material of the utility model embodiment；
Fig. 4 is the structure diagram of the first strain inductor group of the utility model embodiment；
Fig. 5 is the structure diagram of the second strain inductor group of the utility model embodiment；
Fig. 6 is the structure diagram of the Wheatstone bridge formula strain sensing unit of the utility model embodiment；
Fig. 7 is the simplification structure diagram of the Wheatstone bridge formula strain sensing unit of the utility model embodiment；
Fig. 8 is the connection signal of the first strain inductor group and the second strain inductor group of the utility model embodiment
Figure；
Fig. 9 is the structure diagram of the touch display screen component of the utility model embodiment.
Main element symbol description：
Pressure sensitive sensor 10, base material 12, upper surface 14, lower surface 16, the first conductive hole 18, conductive materials 19,
Two conductive holes 20, the first conductive layer 22, first strain inductor group 24, first strain inductor 26, second strain inductor 28,
First node 30, the second conductive layer 32, second strain inductor group the 34, the 3rd strain inductor the 36, the 4th strain inductor 38,
Section point 40, the 3rd node 42, fourth node 44, pressure sensitive unit 46, lead 48, touch display screen component 100, touch
Display screen 20.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein
Same or similar label represents same or similar element or has the function of same or like element from beginning to end.Lead to below
Cross the embodiment being described with reference to the drawings to be exemplary, be only used for explaining the utility model, and it is not intended that to this practicality
New limitation.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
" clockwise ", the orientation of instruction " counterclockwise " or position relationship be based on orientation shown in the drawings or position relationship, merely to
Easy to describe the utility model and simplified description, rather than indicate or imply that signified device or element must be with specifically square
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ",
" second " is only used for description purpose, and it is not intended that indicating or implying relative importance or imply the technology indicated by indicating
The quantity of feature.Thus, " first " is defined, the feature of " second " can be expressed or implicitly include one or more
The feature.In the description of the utility model, " multiple " are meant that two or more, unless otherwise clearly specific
Limit.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected or can mutually communicate；It can be directly connected, can also be in
Between medium be indirectly connected, can be the interaction relationship of connection inside two elements or two elements.For this area
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model.
In order to simplify the disclosure of the utility model, hereinafter the component and setting of specific examples are described.Certainly, they are only
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or reference letter, this repetition are for purposes of simplicity and clarity, itself not indicate discussed various embodiments
And/or the relation between setting.In addition, various specific techniques and the example of material that the utility model provides, but this
Field those of ordinary skill can be appreciated that the application of other techniques and/or the use of other materials.
Please refer to Fig.1-Fig. 9, the pressure sensitive sensor 10 of the utility model embodiment, for touch display screen component
100.Pressure sensitive sensor 10 includes base material 12, the first conductive layer 22 and the second conductive layer 32.
Base material 12 includes upper surface 14 and lower surface 16.Base material 12 is offered through upper surface 14 and lower surface 16 and is spaced
The first conductive hole 18 and the second conductive hole 20.
First conductive layer 22 is arranged on upper surface 14.First conductive layer 22 includes the first strain inductor group 24.First should
Becoming inductor group 24 includes the first strain strain inductor 28 of inductor 26 and second of series connection.First strain inductor 26 and the
The two strain series connection of inductor 28 form the first node 30 positioned at upper surface 14.
Second conductive layer 32 is arranged on lower surface 16.Second conductive layer 32 includes the second strain inductor group 34.Second should
Becoming inductor group 34 includes the 3rd strain strain inductor 38 of inductor 36 and the 4th of series connection.3rd strain inductor 36 and the
The four strain series connection of inductor 38 form the section point 40 positioned at lower surface 16.
First strain inductor 26, second strains inductor the 28, the 3rd and strains the strain inductor 38 of inductor 36 and the 4th
Sensitive grid bearing it is perpendicular to one another.First strain inductor 26 is connected simultaneously with the 4th strain inductor 38 by the first conductive hole 18
Form the 3rd node 42.Second strain inductor 28 strains inductor 36 with the 3rd and is connected by the second conductive hole 20 and form the
Four nodes 44.First strain inductor 26, second strains inductor the 28, the 3rd and strains the strain inductor 38 of inductor 36 and the 4th
Connect and compose Wheatstone bridge formula pressure sensitive unit 46.
The pressure sensitive sensor 10 of the utility model embodiment, the Wheatstone bridge being made of four strain inductors
Formula pressure sensitive unit 46, can be applied to the pressure detecting of deformation in X/Y plane.Pressure sensitive sensor 10 is applied to touch
When touching display screen component 100, the pressure change in touch display screen 20XY planes is detected.It is under pressure in touch display screen 20
When, touch display screen 20 will not directly be extruded, so as to avoid influencing the display of touch display screen 20.
It is appreciated that the pressure sensitive scheme majority for touching display field detects pressure with the deformation of Z-direction, usually
Need to be equipped with support member in the lower section of touch display screen, pressure sensitive sensor is between screen and support member.Work as hand
When referring to pressing screen, the pressure of squeeze pressure inductive pick-up is screen and support member is subject between the two pressure is actual
On be that screen sides are squeezed.Therefore touch display screen can directly be extruded with the deformation of Z-direction to detect pressure,
Long-time application may influence the display of touch display screen.And the pressure sensitive sensor 10 of the utility model embodiment with
Deformation in X/Y plane detects pressure, can without setting support member in the lower section of touch display screen 20.Shield when finger presses
During curtain, screen only has side to be squeezed, and opposite side will not be squeezed.Damaged and shadow accordingly it is possible to prevent screen is extruded
Ring the display of touch display screen 20.
Referring again to Fig. 1 and Fig. 2, the first strain inductor group 24 is identical with the quantity of the second strain inductor group 34 and is
Multiple, in other words the first conductive layer 22 includes the multiple first strain inductor groups 24, and the second conductive layer 32 includes multiple second
Strain inductor group 34.Multiple first strain inductor groups 24 and the second strain inductor group 34 may be constructed multiple favour stone electricity
Bridge-type pressure sensitive unit 46.It is multiple can be understood as it is two or more.
Referring again to Fig. 4-Fig. 6, the first strain inductor 26, second strains inductor the 28, the 3rd and strains 36 and of inductor
The sensitive grid bearing of 4th strain inductor 38 can be understood as the first strain inductor 26 and the second strain sensing vertically
The sensitive grid bearing of device 28 is orthogonal, and the sensitive grid bearing that the 3rd strain inductor 36 and the 4th strains inductor 38 hangs down mutually
Directly, while the first strain strain of inductor 26 and the 4th 38 sensitive grid bearings of inductor are orthogonal, the second strain inductor 28
It is orthogonal with the sensitive grid bearing of the 3rd strain inductor 36.
Referring again to Fig. 3, Fig. 6 and Fig. 7, base material 12 is offered leads through the first of upper surface 14 and lower surface 16 and interval
Electric 18 and second conductive hole 20 of hole.First conductive hole 18 is identical with the quantity of the second conductive hole 20 and is multiple.First conductive hole
18 and second conductive hole 20 quantity it is consistent with the quantity of the first strain inductor group 24 and the second strain inductor group 34.First
Strain inductor 26 and second strains the series connection of inductor 28 and forms first node 30.The 3rd strain strain sense of inductor 36 and the 4th
The series connection of device 38 is answered to form section point 40.First strain inductor 26 is gone here and there with the 4th strain inductor 38 by the first conductive hole 18
Join and form the 3rd node 42.Second strain inductor 28 is connected with the 3rd strain inductor 36 by the second conductive hole 20 and shape
Into fourth node 44.That is, in the present embodiment, the 3rd node 42 is formed at the first conductive hole 18, fourth node
44 are formed at the second conductive hole 20.First strain inductor 26, second strains inductor 28, the 3rd strain inductor 36 and the
Four strain inductors 38 connect and compose Wheatstone bridge formula pressure sensitive unit 46.
Referring again to Fig. 8, base material 12 offers 18 He of the first conductive hole through upper surface 14 and lower surface 16 and interval
Second conductive hole 20.Make the first strain inductor 26 and the in the first conductive hole 18 and the second conductive hole 20 filling conductive materials 19
Four strain inductors 38 are connected by the first conductive hole 18 and form the 3rd node 42, and the second strain inductor 28 and the 3rd strains
Inductor 36 is connected by the second conductive hole 20 and forms fourth node 44.
In some embodiments, the first strain inductor 26, second strains inductor the 28, the 3rd and strains 36 and of inductor
The Standard resistance range of 4th strain inductor 38 is 120 ohm to 50M ohm.
In this way, the Standard resistance range change of strain inductor is greatly, preferably Standard resistance range can be selected according to demand.Preferably
Ground, in the embodiment of the utility model, the Standard resistance range for straining inductor is 1K ohm to 500K ohm.
In some embodiments, Fig. 4 and Fig. 5 are referred to, the first strain inductor 26, second strains inductor 28, the
Three strain inductors 36 and the 4th strain inductors 38 in it is at least one be in detour bending structure.
In this way, ensureing that strain inductor not only has certain resistance value, but also will not seem too long.
Specifically, strain inductor has certain resistance value, and length is longer, and strain inductor is arranged to detour bending
Structure, can be such that strain inductor preferably sets on the base substrate 12.
In some embodiments, referring to Fig. 6, the first strain inductor 26 and the 4th strains inductor 38 spatially
Overlapping, it is spatially overlapping that the second strain inductor 28 and the 3rd strains inductor 36.
In this way, the first strain inductor group 24 is arranged on the upper surface 14 of base material 12, the second strain inductor group 34 is set
In the lower surface 16 of base material 12, two strain inductor groups are spatially overlapping, reduce space hold.
In some embodiments, referring to Fig. 6, the orthographic projection on the base substrate 12 of first node 30 and section point 40 exist
Orthographic projection on base material 12 is overlapping at least in part.
In this way, first node 30 and section point 40 are spatially overlapping at least in part, the space profit of base material 12 is improved
With rate.It is preferred that the orthographic projection of orthographic projection and section point 40 on the base substrate 12 of first node 30 on the base substrate 12 is fully
It is overlapping.
In some embodiments, please refer to Fig.1 and Fig. 2, the quantity of pressure sensitive unit 46 is multiple.Multiple feelings of stress
Unit 46 is answered to be arranged on the base substrate 12 in array.
, can be according in this way, multiple pressure sensitive units 46, which are used to detect, acts on the pressure size of touch display screen 20
Actual demand sets the number of pressure sensitive unit 46.
It is it is appreciated that multiple to be two or more.In the example of fig. 1 and 2, there is provided 6 pressure sensitive units 46,
But the number of pressure sensitive unit 46 can essentially be set as desired.
In some embodiments, the size of pressure sensitive unit 46 is 20mm2To 25cm2。
In this way, the size of pressure sensitive unit 46 is 20mm2To 25cm2, size conjunction can be made according to demand
Suitable pressure sensitive unit 46.
It is appreciated that in the embodiment of the utility model, the maximum area for the pressure sensitive unit 46 that can be made is
25cm2, minimum area 20mm2.In other words, the size of pressure sensitive unit 46 can be 20mm2、25cm2Or 20mm2
To 25cm2Between any number.
In some embodiments, please refer to Fig.1 and Fig. 2, pressure sensitive sensor 10 includes connection first node 30, the
The lead 48 of two nodes 40, the 3rd node 42 and fourth node 44, lead 48 from first node 30, section point 40, Section three
Point 42 and a side of fourth node 44 through base material 12 extend to another side of base material 12, and a side and another side are base material
12 sides adjacent.
In this way, lead 48 connects four nodes and flexible PCB structure Wheatstone bridge detection circuit.Lead 48 is set
Influence of 20 screen deformation of touch display screen to 48 resistance value of lead can be reduced in 12 side of base material, is become to avoid 48 resistance value of lead
Change and cause pressure detecting inaccurate greatly.
In the example of the utility model, the flat shape of base material 12 is square, and the left side and right side of base material 12 are opposite
Side, left side and downside, upside are sides adjacent, and right side and downside, upside are sides adjacent.In the utility model example, lead 48
Base material is extended to from first node 30, section point 40, the 3rd node 42 and fourth node 44 left side and right side through base material 12
12 downside.Lead 48 draws connection flexible PCB from the downside of base material 12.Certainly, lead 48 also can be from first node 30,
Two nodes 40, the left or right side of the 3rd node 42 and fourth node 44 through base material 12 extend to the downside of base material 12.Lead 48
Connection flexible PCB can also be drawn from the upside of base material 12, or lead 48 draws connection flexible electrical in both sides from base material about 12
Road plate.So, it is possible to reduce the length of part lead 48.
In the embodiment of the utility model, be on one side lead 48 outside Wheatstone bridge, although lead 48
Resistance value can also change, but influence of the change of 48 resistance value of lead to electric current in circuit is very small；On the other hand
It is that lead 48 is immediately directed against nearest 12 side of base material to correspond to the position at the nearest edge of screen on base material 12, and uses
Compare thick lead 48, the diameter range of lead 48 is the strain strain sense of inductor the 28, the 3rd of the first strain inductor 26, second
Answer the sensitive grid width of the strain inductor 38 of device 36 and the 4th 5-5000 times.For the feeling of stress of the screen of touch display screen 20
Should, when pressing screen, the deformation quantity among screen is significantly larger than the deformation of screen edge.Therefore lead 48 is guided into base as early as possible
The position at the nearest edge of screen is corresponded on material 12, and corresponds to the position in inside screen region on the base substrate 12 using thicker
Lead 48, (the thin lead 48 of some can be used by corresponding to the position edge of screen edge on the base substrate 12), can further subtract
Few influence of the screen deformation to 48 resistance value of lead, causes greatly pressure detecting inaccurate to avoid 48 change in resistance of lead.
In some embodiments, lead 48 is separately positioned on the upper surface 14 and lower surface 16 of base material 12.
In this way, lead 48 connects four nodes and flexible PCB structure Wheatstone bridge detection circuit.Shown when touching
Screen 20 is when being under pressure, and the resistance variations of Wheatstone bridge detection circuit detection strain inductor are to detect pressure change.
Specifically, lead 48 is separately positioned on the upper surface 14 and lower surface 16 of base material 12, i.e. lead 48 is separately positioned on
First conductive layer 22 and the second conductive layer 32.In the utility model embodiment, the first conductive layer 22 include first node 30,
3rd node 42 and fourth node 44, the second conductive layer 32 include section point 40, the 3rd node 42 and fourth node 44, lead
48 and node connection mode have it is a variety of.Referring to Fig. 1, three nodes that lead 48 is connected in same conductive layer and another leading
One node of electric layer.When three nodes in same conductive layer are first node 30, the 3rd node 42, fourth node 44,
One node of another conductive layer is section point 40.When three nodes in same conductive layer for section point 40, Section three
When point 42, fourth node 44, a node of another conductive layer is first node 30.Referring to Fig. 2, lead 48 be connected to it is same
Two nodes of two nodes and another conductive layer in conductive layer.When two nodes in same conductive layer are first node
30th, during three nodes 42, two nodes of another conductive layer are section point 40, fourth node 44.When in same conductive layer
When two nodes are first node 30, fourth node 44, two nodes of another conductive layer are section point 40, the 3rd node
42。
Referring to Fig. 9, the touch display screen component 100 of the utility model embodiment, including any of the above-described embodiment
Pressure sensitive sensor 10 and touch display screen 20.Touch display screen 20 is stacked with pressure sensitive sensor 10.
Incorporated by reference to Fig. 9, in the touch display screen component 100 of the utility model embodiment, pressure sensitive sensor 10 can
To detect the pressure change in touch display screen 20XY planes.When touch display screen 20 is under pressure, will not be shown to touching
Screen 20 directly extrudes, so as to avoid influencing the display of touch display screen 20.
In some embodiments, pressure sensitive sensor 10 is located at the lower section of touch display screen 20, pressure sensitive sensing
The size of device 10 is less than or equal to the size of touch display screen 20.
The electronic device of the utility model embodiment, including housing and the touch display screen component of the above embodiment
100, touch display screen component 100 is arranged on housing.
In the electronic device of the utility model embodiment, touch display screen component 100 includes pressure sensitive sensor 10
With touch display screen 20.Pressure sensitive sensor 10 can detect the pressure change in touch display screen 20XY planes.Touching
When display screen 20 is under pressure, touch display screen 20 will not directly be extruded, so as to avoid influencing the display of touch display screen 20.
It is appreciated that electronic device, which can be mobile phone, tablet computer etc., possesses the electric terminal for touching display function.
In the description of this specification, reference term " certain embodiments ", " embodiment ", " some embodiment party
The description of formula ", " exemplary embodiment ", " example ", " specific example " or " some examples " means to combine embodiment or shows
Example particular features, structures, materials, or characteristics described are contained at least one embodiment or example of the utility model.
In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment or example.Moreover, description
Particular features, structures, materials, or characteristics can be in any one or more embodiments or example with suitable side
Formula combines.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to the limitation to the utility model is interpreted as, those of ordinary skill in the art are in the scope of the utility model
Interior above-described embodiment to be changed, changed, replaced and modification, the scope of the utility model is by claim and its equivalent
Thing limits.
Claims (11)
- A kind of 1. pressure sensitive sensor, for touch display screen component, it is characterised in that the pressure sensitive sensor bag Include：Base material, the base material include upper and lower surface, and the base material is offered through the upper surface and the lower surface And first conductive hole and the second conductive hole at interval；First conductive layer, first conductive layer are arranged on the upper surface, and first conductive layer includes the first strain and senses Device group, the first strain inductor group include the first strain inductor and the second strain inductor of series connection, and described first should Become inductor and the second strain inductor is connected the first node to be formed positioned at the upper surface；WithSecond conductive layer, second conductive layer are arranged on the lower surface, and second conductive layer includes the second strain and senses Device group, the second strain inductor group include the 3rd strain inductor and the 4th strain inductor of series connection, and the described 3rd should Become inductor and the 4th strain inductor is connected the section point to be formed positioned at the lower surface；The first strain inductor, the second strain inductor, the 3rd strain inductor and the 4th strain sense Answer the sensitive grid bearing of device perpendicular to one another, the first strain inductor is led with the described 4th strain inductor by described first Electric hole connects and forms the 3rd node, and the second strain inductor and the described 3rd strain inductor are conductive by described second Hole connects and forms fourth node, and the first strain inductor, the second strain inductor, the described 3rd strain inductor Wheatstone bridge formula pressure sensitive unit is connected and composed with the described 4th strain inductor.
- 2. pressure sensitive sensor as claimed in claim 1, it is characterised in that the first strain inductor, described second The Standard resistance range of strain inductor, the 3rd strain inductor and the 4th strain inductor is 120 ohm to 50M Europe Nurse.
- 3. pressure sensitive sensor as claimed in claim 1, it is characterised in that the first strain inductor, described second Strain inductor, it is described 3rd strain inductor and it is described 4th strain inductor in it is at least one be in detour bending structure.
- 4. pressure sensitive sensor as claimed in claim 1, it is characterised in that the first strain inductor and the described 4th It is spatially overlapping to strain inductor, the second strain inductor and the 3rd strain inductor are spatially overlapping.
- 5. pressure sensitive sensor as claimed in claim 1, it is characterised in that the first node is on the substrate just Projection and the orthographic projection of the section point on the substrate are overlapping at least in part.
- 6. pressure sensitive sensor as claimed in claim 1, it is characterised in that the quantity of the pressure sensitive unit is more A, the multiple pressure sensitive unit is arranged in array on the substrate.
- 7. pressure sensitive sensor as claimed in claim 6, it is characterised in that the size of the pressure sensitive unit is 20mm2To 25cm2。
- 8. pressure sensitive sensor as claimed in claim 1, it is characterised in that the pressure sensitive sensor includes connection institute State the lead of first node, the section point, the 3rd node and the fourth node, the lead is from the first segment Point, the section point, a side of the 3rd node and the fourth node through the base material extend to the base material Another side, described a side and the sides adjacent that another side is the base material.
- 9. pressure sensitive sensor as claimed in claim 8, it is characterised in that the lead is separately positioned on the upper surface With the lower surface.
- A kind of 10. touch display screen component, it is characterised in that including：Claim 1 to 9 any one of them pressure sensitive sensor；WithTouch display screen, the touch display screen are stacked with the pressure sensitive sensor.
- 11. a kind of electronic device, it is characterised in that described including the touch display screen component described in housing and claim 10 Touch display screen component is arranged on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721362409.3U CN207352589U (en) | 2017-10-20 | 2017-10-20 | Pressure sensitive sensor, touch display screen component and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721362409.3U CN207352589U (en) | 2017-10-20 | 2017-10-20 | Pressure sensitive sensor, touch display screen component and electronic device |
Publications (1)
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| CN207352589U true CN207352589U (en) | 2018-05-11 |
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Effective date of registration: 20210414 Address after: 231323 Building 1, precision electronics industrial park, Hangbu Town, Shucheng County, Lu'an City, Anhui Province Patentee after: Anhui jingzhuo optical display technology Co.,Ltd. Address before: 330013 Huang Jia Hu West Road, Nanchang Economic Development Zone, Jiangxi Patentee before: Nanchang OFilm Tech. Co.,Ltd. |