CN107797706A - A kind of pressure sensitive sensor, display panel and device - Google Patents
A kind of pressure sensitive sensor, display panel and device Download PDFInfo
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- CN107797706A CN107797706A CN201711068788.XA CN201711068788A CN107797706A CN 107797706 A CN107797706 A CN 107797706A CN 201711068788 A CN201711068788 A CN 201711068788A CN 107797706 A CN107797706 A CN 107797706A
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- sensitive sensor
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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
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- 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
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
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- General Engineering & Computer Science (AREA)
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- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Measuring Fluid Pressure (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The embodiments of the invention provide a kind of pressure sensitive sensor, display panel and device to show；Pressure sensitive sensor in the embodiment of the present invention, including：First connecting bridge, the second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge are wire connecting bridge；The arrangement nested with second connecting bridge of first connecting bridge, the 3rd connecting bridge arrangement nested with the 4th connecting bridge.Due to the arrangement nested with the second connecting bridge of the first connecting bridge, the first connecting bridge and the second connecting bridge it is part or all of close to each other, then the temperature of the first connecting bridge and the second connecting bridge can mutually be fed so that mutual temperature is essentially identical；Similarly, the temperature of the 3rd connecting bridge and the 4th connecting bridge is essentially identical, and the testing result that pressure sensitive sensor is got in this case, for prior art, accuracy is higher, improves the accuracy of the testing result of pressure sensitive sensor.
Description
【Technical field】
The present invention relates to technical field of touch control, more particularly to a kind of pressure sensitive sensor, display panel and device.
【Background technology】
Display panel with touch controllable function is widely used in mobile phone, tablet personal computer, the information in public place hall and looked into
In the various display devices such as inquiry machine.User need to only be can be realized as to the display device with the mark on finger touch display panel
Operation, eliminate dependence of the user to other input equipments (such as keyboard and mouse), make man-machine interaction more simple.
In order to preferably meet user's request, pressure sensitive sensor, feeling of stress are set generally in touch-control display panel
Inductive sensing device, for detecting pressure size when user presses touch-control display panel, touch-control display panel is set to gather
Position of touch information, and pressure size can be gathered, to enrich the application of touch technology.
In the prior art, typically it is applied to using pressure sensitive sensor 100 as shown in Figure 1 to detect on display panel
Pressure size, Fig. 1 is the structural representation of pressure sensitive sensor 100, and in Fig. 1, pressure sensitive sensor 100 includes：
First connecting bridge 101, the second connecting bridge 102, the 3rd connecting bridge 103, the 4th connecting bridge 104, first input end
1111st, the second input 1112, the first output end 1113 and the second output end 1114.
Wherein, the resistance of the first connecting bridge 101 is R1, the resistance of the second connecting bridge 102 is R2, the electricity of the 3rd connecting bridge 103
Hinder for R3, the resistance of the 4th connecting bridge 104 is R4。
The operation principle of pressure sensitive sensor 100 is：
When the resistance of first to fourth connecting bridge meets bridge balance conditionWhen, the first output end 1113 and
The current potential of two output end 1114 is equal, and the pressure sensitivity detection signal of the first output end 1113 and the output of the second output end 1114 is zero.When
When touching main body pressing display panel, first to fourth connecting bridge deforms upon, and the resistance of first to fourth connecting bridge becomes
Change, the resistance of first to fourth connecting bridge is unsatisfactory for bridge balance conditionCan be according to the first output end 1113 and
The pressure sensitivity detection signal of two output ends 1114 output realizes the detection of pressure size.
The resistance of the connecting bridge of pressure sensitive sensor 100, it is also affected by temperature in addition to by influence of crust deformation,
Wherein, under different temperatures, identical deformation, the change in resistance of same connecting bridge is different, due to pressure sensitive sensor 100
Testing result is relevant with the change in resistance of connecting bridge, then if wanting to get the higher testing result of accuracy, should try one's best makes
Four connecting bridges for obtaining pressure sensitive sensor 100 are under same temperature.
But display panel is at work, the temperature of display panel diverse location may be different, and this will cause feeling of stress
Four connecting bridges of inductive sensing device 100 are likely to be under different temperatures, so as to cause the testing result of pressure sensitive sensor 100
Accuracy it is relatively low.
【The content of the invention】
In view of this, the embodiments of the invention provide a kind of pressure sensitive sensor, display panel and device, to solve
The problem of accuracy of the testing result of pressure sensitive sensor of the prior art is relatively low.
In a first aspect, the embodiments of the invention provide a kind of pressure sensitive sensor, including：
First signal input part, secondary signal input, the first signal output part and secondary signal output end；
First connecting bridge, the second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge；
First connecting bridge, second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge include
First end and the second end；
The first end of second end of first connecting bridge and second connecting bridge with first signal output part
It is connected；
The first end of second end of second connecting bridge and the 3rd connecting bridge with first signal input part
It is connected；
Second end of the 3rd connecting bridge and the first end of the 4th connecting bridge with the secondary signal output end
It is connected；
Second end of the 4th connecting bridge and the first end of first connecting bridge with the secondary signal input
It is connected；
First connecting bridge, the second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge are wire connecting bridge；
First connecting bridge arrangement nested with second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge
Nesting arrangement；
In a first direction, first connecting bridge is different from the length of second connecting bridge, and/or, in second party
Upwards, first connecting bridge is different from the length of second connecting bridge；
In said first direction, the 3rd connecting bridge is different from the length of the 4th connecting bridge, and/or, in institute
State in second direction, the 3rd connecting bridge is different from the length of the 4th connecting bridge；
Wherein, the first direction is mutually perpendicular to the second direction.
Second aspect, the embodiment of the present invention also provide another display panel, and the display panel includes：
Substrate, the substrate include viewing area and the non-display area around non-display area；
Thin film transistor (TFT) positioned at the substrate viewing area, the thin film transistor (TFT) include active layer and metal level；
Such as above-mentioned pressure sensitive sensor, set on the substrate, the pressure sensitive sensor and the active layer
Or the metal level is prepared with layer.
The third aspect, the embodiment of the present invention also provide a kind of display device, including any of the above-described kind of display panel.
A technical scheme in above-mentioned technical proposal has the advantages that：
Due to the arrangement nested with the second connecting bridge of the first connecting bridge, the first connecting bridge and the second connecting bridge it is part or all of
It is close to each other, then the temperature of the first connecting bridge and the second connecting bridge can mutually be fed so that mutual temperature is essentially identical；
Similarly, the temperature of the 3rd connecting bridge and the 4th connecting bridge is essentially identical, and pressure sensitive sensor is got in this case
Testing result, for prior art, accuracy is higher.
【Brief description of the drawings】
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this area
For those of ordinary skill, without having to pay creative labor, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is a kind of structural representation for pressure sensitive sensor that prior art is provided；
Fig. 2 is a kind of structural representation for pressure sensitive sensor that the embodiment of the present invention is provided；
Fig. 3 is the structural representation for another pressure sensitive sensor that the embodiment of the present invention is provided；
Fig. 4 is the structural representation for another pressure sensitive sensor that the embodiment of the present invention is provided；
Fig. 5 is a kind of top view for display panel that the embodiment of the present invention is provided；
Fig. 6 is the enlarged diagram of the viewing area in Fig. 5 that the embodiment of the present invention is provided；
Fig. 7 is along the sectional view on AA ' directions in Fig. 6 that the embodiment of the present invention is provided；
Fig. 8 is the partial section for Fig. 5 that the embodiment of the present invention is provided；
Fig. 9 is a kind of top view for display device that the embodiment of the present invention is provided.
【Embodiment】
In order to be better understood from technical scheme, the embodiment of the present invention is retouched in detail below in conjunction with the accompanying drawings
State.
It will be appreciated that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
Its embodiment, belongs to the scope of protection of the invention.
The term used in embodiments of the present invention is only merely for the purpose of description specific embodiment, and is not intended to be limiting
The present invention." one kind ", " described " and "the" of singulative used in the embodiment of the present invention and appended claims
It is also intended to including most forms, unless context clearly shows that other implications.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while A and B be present, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining " or " in response to detection ".Similarly, depending on linguistic context, phrase " if it is determined that " or " if detection
(condition or event of statement) " can be construed to " when it is determined that when " or " in response to determine " or " when the detection (condition of statement
Or event) when " or " in response to detecting (condition or event of statement) ".
The embodiment of the present invention provides a kind of pressure sensitive sensor 200, exemplary, the pressure sensitive sensor 200
As shown in Figure 2 to 4, in Fig. 2~Fig. 4, the pressure sensitive sensor 200 includes structural representation：
First signal input part 201, secondary signal input 202, the first signal output part 203 and secondary signal output
End 204；
First connecting bridge 205, the second connecting bridge 206, the 3rd connecting bridge 207 and the 4th connecting bridge 208；
First connecting bridge 205, the second connecting bridge 206, the 3rd connecting bridge 207 and the 4th connecting bridge 208 include first
End and the second end；
The first end of second end of the first connecting bridge 205 and the second connecting bridge 206 with the phase of the first signal output part 203
Even；
Second end of the second connecting bridge 206 and the first end of the 3rd connecting bridge 207 with the phase of the first signal input part 201
Even；
Second end of the 3rd connecting bridge 207 and the first end of the 4th connecting bridge 208 with the phase of secondary signal output end 204
Even；
The first end of second end of the 4th connecting bridge 208 and the first connecting bridge 205 with the phase of secondary signal input 202
Even；
First connecting bridge 205, the second connecting bridge 206, the 3rd connecting bridge 207 and the 4th connecting bridge 208 connect for wire
Bridge；
First connecting bridge 205 and the 206 nested arrangement of the second connecting bridge, the 3rd connecting bridge 207 are nested with the 4th connecting bridge 208
Arrangement；
In a first direction, the first connecting bridge 205 is different from the length of the second connecting bridge 206, and/or, in second direction
On, the first connecting bridge 205 is different from the length of the second connecting bridge 206；
In a first direction, the 3rd connecting bridge 207 is different from the length of the 4th connecting bridge 208, and/or, in second direction
On, the 3rd connecting bridge 207 is different from the length of the 4th connecting bridge 208；
Wherein, first direction is mutually perpendicular to second direction.
Above-mentioned nested arrangement, refers to space in the profile of an object be present, another object it is part or all of, be arranged in
In the space of this object, and the two objects do not contact between each other, or, refer to sky in the profile of two objects be present
Gap, two objects are partly or entirely arranged in mutual space, and the two objects do not contact between each other.
In Fig. 2 and Fig. 4, the first connecting bridge 205, the second connecting bridge 206, the 3rd connecting bridge 207 and the 4th connecting bridge 208
It is spiral, space is present in the profile of each connecting bridge, wherein, a part for the first connecting bridge 205 and the second connection
A part for bridge 206 is arranged in mutual space, a part for the 3rd connecting bridge 207 and a part for the 4th connecting bridge 208
It is arranged in mutual space.In Fig. 3, the first connecting bridge 205, the second connecting bridge 206, the 3rd connecting bridge 207 and the 4th connect
It is zigzag to connect bridge 208, space in the profile of the first connecting bridge 205 be present, and a part for the second connecting bridge 206 is arranged in
In the space of first connecting bridge 205, space, the part row of the 4th connecting bridge 208 in the profile of the 3rd connecting bridge 207 be present
Cloth is in the space of the 3rd connecting bridge 207.Wherein, due to the first connecting bridge 205 and the nested arrangement of the second connecting bridge 206, first
The connecting bridge 206 of connecting bridge 205 and second it is part or all of close to each other, then the first connecting bridge 205 and the second connecting bridge 206
Temperature can mutually feed, to cause mutual temperature essentially identical；Similarly, the 3rd connecting bridge 207 and the 4th connecting bridge 208
Temperature it is essentially identical.
In Fig. 2~Fig. 4, first direction is horizontal direction, and second direction is vertical direction.Only example of the embodiment of the present invention
Property first direction and second direction are shown, in actual applications, first direction and second direction can be set according to the actual requirements.
In Fig. 2~Fig. 4, the first connecting bridge 205 is different with the length in second direction in a first direction from the second connecting bridge 206；The
Three connecting bridges 207 are different with the length in second direction in a first direction from the 4th connecting bridge 208.
It should be noted that in the embodiment of the present invention, why by the first connecting bridge 205 and the second connecting bridge 206
Length on one direction and/or second direction is arranged to different length, and the 3rd connecting bridge 207 and the 4th connecting bridge 208 are existed
Length on first direction and/or second direction is arranged to different length, and reason is as follows：
If length of first connecting bridge 205 with the second connecting bridge 206 in a first direction is identical, and in a second direction
Length is identical, in addition, length of the 3rd connecting bridge 207 with the 4th connecting bridge 208 in a first direction is identical, and in second direction
On length it is identical, then in the case of temperature identical, the first connecting bridge 205 and the second connecting bridge 206 are in a first direction
Deformation it is identical, and deformation in a second direction is identical, and this will cause the first connecting bridge 205 and the second connecting bridge 206
Change in resistance is identical, and similarly, the 3rd connecting bridge 207 is identical with the change in resistance of the 4th connecting bridge 208, so as to cause the first signal
The voltage signal that output end 203 and secondary signal output end 204 export respectively is constant, just can not detect and be applied to display panel
Pressure size on 300.Therefore, in the embodiment of the present invention, in order that pressure sensitive sensor 200 can to detect pressure big
It is small, the length of the first connecting bridge 205 and the second connecting bridge 206 in a first direction and/or in second direction is just arranged to different
Length, and the length in a first direction and/or in second direction is arranged to not by the 3rd connecting bridge 207 and the 4th connecting bridge 208
Same length.
Wherein, because the 206 nested arrangement of the first connecting bridge 205 and the second connecting bridge, the first connecting bridge 205 and second connect
Bridge 206 it is part or all of close to each other, then the temperature of the first connecting bridge 205 and the second connecting bridge 206 can mutually be fed,
So that mutual temperature is essentially identical；Similarly, the temperature of the 3rd connecting bridge 207 and the 4th connecting bridge 208 is essentially identical, feeling of stress
The testing result that inductive sensing device 200 is got in this case, for prior art, accuracy is higher.
In addition, in the case of equal length and material, the cross-sectional area of connecting bridge is smaller, and the resistance of connecting bridge is bigger, by
In the embodiment of the present invention, four connecting bridges of pressure sensitive sensor 200 are wire, compared to of the prior art piece
For shape connecting bridge, the cross-sectional area of wire connecting bridge is smaller, then the resistance of wire connecting bridge is just larger, in wire connecting bridge
When identical with the resistance of block connecting bridge, wire connecting bridge occupied area is less than block connecting bridge occupied area, due to feeling of stress
Inductive sensing device 200 is arranged in the frame of display panel 300, then the pressure sensitive sensor 200 in the embodiment of the present invention accounts for
Area is smaller, advantageous in reduction border width.
Furthermore in the prior art, the distance between block connecting bridge farther out, causes pressure sensitive of the prior art to sense
The occupied area of device 100 is larger, causes border width larger, and in the embodiment of the present invention, connecting bridge is nested to be set, and causes the present invention
The occupied area of pressure sensitive sensor 200 in embodiment is smaller, can be to reduce border width.
Optionally, referring to Fig. 2, the length of the first connecting bridge 205 in a first direction, more than the first connecting bridge 205
Length on two directions, the length of the second connecting bridge 206 in a first direction, less than the second connecting bridge 206 in a second direction
Length.
It is directed to for a connecting bridge, if the length of the connecting bridge in a first direction, more than the connecting bridge second
Length on direction, then the connecting bridge is mainly used in impression and the power on detection first direction, if the connecting bridge is in first party
Upward length, less than the length of the connecting bridge in a second direction, then the connecting bridge is mainly used in impression and detection second
Power on direction.It follows that in Fig. 2, the first connecting bridge 205 is mainly used in impression and the power on detection first direction.Second
Connecting bridge 206 is mainly used in impression and the power in detection second direction.
Optionally, referring to Fig. 2, the length of the 3rd connecting bridge 207 in a first direction, more than the 3rd connecting bridge 207
Length on two directions, the length of the 4th connecting bridge 208 in a first direction, less than the 4th connecting bridge 208 in a second direction
Length.
In Fig. 2, the 3rd connecting bridge 207 is mainly used in impression and the power on detection first direction.4th connecting bridge 208 is main
For experiencing and detecting the power in second direction.
Optionally, referring to Fig. 4, the length of the 3rd connecting bridge 207 in a first direction, less than the 3rd connecting bridge 207
Length on two directions, the length of the 4th connecting bridge 208 in a first direction, more than the 4th connecting bridge 208 in a second direction
Length.
In Fig. 4, the 3rd connecting bridge 207 is mainly used in impression and the power in detection second direction.4th connecting bridge 208 is main
For experiencing and detecting the power on first direction.
In Fig. 4, the length of the first connecting bridge 205 in a first direction, more than the first connecting bridge 205 in a second direction
Length, the length of the second connecting bridge 206 in a first direction, less than the length of the second connecting bridge 206 in a second direction.First
Connecting bridge 205 is mainly used in impression and the power on detection first direction.Second connecting bridge 206 is mainly used in impression and detection second
Power on direction.
Optionally, referring to Fig. 3, the length of the first connecting bridge 205 in a first direction, more than the first connecting bridge 205
Length on two directions, the length of the second connecting bridge 206 in a first direction, more than the second connecting bridge 206 in a second direction
Length.
In Fig. 3, the first connecting bridge 205 is mainly used in impression and the power on detection first direction.Second connecting bridge 206 is main
For experiencing and detecting the power on first direction.
Optionally, referring to Fig. 3, the length of the 3rd connecting bridge 207 in a first direction, less than the 3rd connecting bridge 207
Length on two directions, the length of the 4th connecting bridge 208 in a first direction, less than the 4th connecting bridge 208 in a second direction
Length.
In Fig. 3, the 3rd connecting bridge 207 is mainly used in impression and the power in detection second direction.4th connecting bridge 208 is main
For experiencing and detecting the power in second direction.
Optionally, referring to Fig. 2 and Fig. 4, the first connecting bridge 205 and the second connecting bridge 206 in the shape of a spiral, the 3rd connecting bridge
207 and the 4th connecting bridge 208 in the shape of a spiral.
Optionally, referring to Fig. 3, the first connecting bridge 205 and the indention of the second connecting bridge 206, the 3rd connecting bridge 207 and
The indention of four connecting bridge 208.
Optionally, the material of the first connecting bridge 205, the second connecting bridge 206, the 3rd connecting bridge 207 and the 4th connecting bridge 208
Expect for non-crystalline silicon.
In the prior art, typically the connecting bridge in pressure sensitive sensor 200 is made using crystalline silicon.The resistance of non-crystalline silicon
Rate is more than the resistivity of crystalline silicon, and when other conditions are identical, the resistance of the connecting bridge made of non-crystalline silicon is more than prior art
The middle connecting bridge made of crystalline silicon, wherein, the resistance of connecting bridge is bigger, and the testing result of pressure sensitive sensor 200 is more accurate,
So, in the case of other conditions identical, due to the resistance of the connecting bridge of the pressure sensitive sensor 200 in the embodiment of the present invention
The testing result for being worth larger pressure sensitive sensor 200 in the embodiment of the present invention is more accurate.
The embodiment of the present invention also provides a kind of display panel 300, and referring to Fig. 5, Fig. 6 and Fig. 7, Fig. 5 is display panel 300
Top view, Fig. 6 are the enlarged diagram of part viewing area 301 in Fig. 5, and Fig. 7 is along the sectional view on AA ' directions, display in Fig. 6
Panel 300 includes：
Substrate, substrate include viewing area 301 and around the peripheral non-display areas 302 in viewing area 301；
Thin film transistor (TFT) 6 positioned at substrate viewing area, thin film transistor (TFT) 6 include active layer 64 and metal level；
Any of the above-described kind of pressure sensitive sensor 200, is arranged on substrate, pressure sensitive sensor 200 and active layer 64
Or metal level is prepared with layer.
In Fig. 5, display panel 300 is included positioned at the viewing area 301 of center, and around the periphery of viewing area 301
Non-display area 302.Alternatively, the offside edge opening position of display panel 300 is respectively arranged with least one pressure sensitive sensing
Device 200.Display panel 300 also includes the thin film transistor (TFT) 6 positioned at viewing area 301, and thin film transistor (TFT) 6 includes source electrode 61, drain electrode
62nd, active layer 64 and grid 63；Display panel 300 also includes metal level, and the metal level can be required for any metal structure
Layer, such as Source and drain metal level or gate metal layer etc., Source and drain metal level is the metal level where source electrode 61 and drain electrode 62, grid
Pole metal level is the metal level where grid 63；Pressure sensitive sensor 200 is set with active layer 64 or above-mentioned metal level with layer
Put, pressure sensitive sensor 200 can be made up of semi-conducting material or metal material, if pressure sensitive sensor 200 is by partly leading
Body material is made, then it is set with active layer 64 with layer, and pressure sensitive sensor can be formed while active layer 64 are made
200, if pressure sensitive sensor 200 is made up of metal material, it sets with other metal levels in display panel 300 with layer
Put, pressure sensitive sensor 200 can be formed while other metal structures are made.
In order to more clearly embody the film layer structure of display panel 300, below it is illustrative：
Exemplary, if display panel is liquid crystal display panel, as shown in Figure 6 and Figure 7, display panel 300 includes a plurality of
Grid line 8 and a plurality of data lines 7, a plurality of grid line 8 and a plurality of data lines 7 intersect the multiple sub-pixel lists defined in matrix distribution
Member, each sub-pixel unit are correspondingly arranged on thin film transistor (TFT) 6, and the source electrode 61 of thin film transistor (TFT) 6 is connected to corresponding data wire
7, the drain electrode 62 of thin film transistor (TFT) 6 is connected to corresponding pixel electrode (not shown), and the grid 63 of thin film transistor (TFT) 6 connects
In corresponding grid line 8.The liquid crystal display panel includes the array base palte and color membrane substrates being oppositely arranged, array base palte and color film base
Liquid crystal layer is provided between plate.Data wire 7 is used to transmit data-signal, and grid line 8 is used to transmit scanning signal, in LCD
In the course of work of plate, thin film transistor (TFT) 6 corresponding to a plurality of grid line 8 is led successively under the control of scanning signal with behavior unit
It is logical, meanwhile, data wire 7 transmits data-signal to corresponding pixel electrode successively, so that pixel electrode is electrically charged, pixel electrode
Electric field is formed between public electrode to drive the liquid crystal deflection in liquid crystal layer, to realize normal display, color membrane substrates include net
The black matrix of trellis, and the multiple color blockings for the array arrangement being arranged in black matrix opening, color blocking include red color resistance, green
Color blocking and blue color blocking.Pressure sensitive sensor 200 can be made up of semi-conducting material or metal material, if pressure sensitive senses
Device 200 is made up of semi-conducting material, then it is set with active layer 64 with layer, can be while active layer 64 are made by same
Secondary patterning processes form pressure sensitive sensor 200, so as to save technique number, reduce cost；If pressure sensitive senses
Device 200 is made up of metal material, then it is set with any metal level in liquid crystal display panel with layer, for example, pressure sensitive senses
Device 200 is set with grid 63 with layer, or pressure sensitive sensor 200 is set with source electrode 61 and drain electrode 62 with layer, if liquid crystal
Show the metal level being additionally provided with panel where other metal levels, such as touching signals line, pressure sensitive sensor 200 can also
Set with touching signals line with layer, so, can be while these metal levels be made by forming pressure with a patterning processes
Power inductive pick-up 200, so as to save technique number, reduce cost.In addition, in the prior art, pressure sensitive sensor
100 lead, typically it is arranged on the cabling of other circuits in display panel in the frame in same film layer, due to feeling of stress
The cabling occupied area of the lead of inductive sensing device 100 and other circuits is larger, so as to cause border width wider.The present invention is implemented
In example, the cabling of other circuits in the lead of pressure sensitive sensor 200 and display panel 300 can be arranged on different films
In frame in layer, it can so reduce border width.Further, since the first connecting bridge is connected with second in the embodiment of the present invention
The nested arrangement of bridge, the 3rd connecting bridge is nested with the 4th connecting bridge to arrange, and draws closer together each other between connecting bridge, occupied area is more
It is small, when pressure sensitive sensor is arranged on non-display area, compared with prior art, can reduce shared by pressure sensitive sensor
Frame, so as to be effectively reduced while influence of the temperature to the induction sensitivity of pressure sensitive sensor is reduced
Border width, it is advantageously implemented narrow frame.
Exemplary, if display panel 300 is organic electroluminescence display panel, organic electroluminescence display panel includes array base
Plate, array base palte include multiple image element circuits, and organic electroluminescence display panel is also multiple organic on array base palte including being arranged at
Light emitting diode (Organic Light-Emitting Diode, OLED), the anode of each Organic Light Emitting Diode it is corresponding with
Image element circuit electrical connection on array base palte, as shown in figure 8, Fig. 8 is Fig. 5 partial sections, each Organic Light Emitting Diode E bags
The anode layer 81 set gradually, luminescent layer 82 and cathode layer 83 are included, image element circuit includes thin film transistor (TFT) 6, and thin film transistor (TFT) 6 wraps
Include source electrode 61, drain electrode 62, grid 63 and active layer 64, image element circuit also includes storage capacitance Cst, and storage capacitance Cst includes the
One battery lead plate C1 and second electrode plate C2, wherein grid 63 and second electrode plate C2 are located at the first conductive layer, first electrode plate C1
Positioned at the second conductive layer, source electrode 61 and drain electrode 62 are located at the 3rd conductive layer, in side of the anode layer 81 away from cathode layer 83, successively
The 3rd conductive layer, the second conductive layer, the first conductive layer and active layer 63 are provided with, Organic Light Emitting Diode E anode layer 81 is logical
Via is connected to the drain electrode 62 of corresponding thin film transistor (TFT).Multiple light emitting diodes include being used for the light-emitting diodes to glow
Pipe, the light emitting diode for green light and the light emitting diode for blue light-emitting.Pressure sensitive sensor 200 can be by partly leading
Body material or metal material are made, if pressure sensitive sensor 200 is made up of semi-conducting material, it sets with active layer 64 with layer
Put, can be while active layer 64 be made by forming pressure sensitive sensor 200 with a patterning processes, so as to save
Technique number, reduces cost；If pressure sensitive sensor 200 is made up of metal material, itself and organic electroluminescence display panel
In any metal level set with layer, for example, pressure sensitive sensor 200 is set with grid 63 with layer, or pressure sensitive sensing
Device is set with source electrode 61 and drain electrode 62 with layer, or pressure sensitive sensor 200 and first electrode plate C1 is set with layer, anode layer
81 and cathode layer 83 in wherein one layer be reflecting electrode, one layer is transparency electrode in addition, and the light in luminescent layer 82 is by transparent
Electrode side is sent, and because reflecting electrode is made by metal material, now pressure sensitive sensor 200 can be same with reflecting electrode
Layer is set, and so, can form pressure sensitive sensor by a same patterning processes while these metal levels are made, from
And technique number is saved, reduce cost.In addition, in the prior art, the lead of pressure sensitive sensor 100, typically with showing
Show that the cabling of other circuits in panel is arranged in the frame in same film layer, due to the lead of pressure sensitive sensor 100
It is larger with the cabling occupied area of other circuits, so as to cause border width wider., can be by pressure sensitive in the embodiment of the present invention
The cabling of the lead of sensor 200 and other circuits in display panel 300, is arranged in the frame in different film layers, so
Border width can be reduced.Further, since the first connecting bridge arrangement nested with the second connecting bridge in the embodiment of the present invention, the 3rd connects
Bridge arrangement nested with the 4th connecting bridge is connect, is drawn closer together each other between connecting bridge, occupied area is smaller, when pressure sensitive sensor
When being arranged on non-display area, compared with prior art, the frame shared by pressure sensitive sensor can be reduced, so as to reduce
Border width can also be effectively reduced while influence of the temperature to the induction sensitivity of pressure sensitive sensor, is advantageously implemented
Narrow frame.
Exemplary, if display panel is micro-led display panel, micro-led display panel bag
Array base palte is included, array base palte includes multiple image element circuits, and micro-led display panel also includes being arranged at array base
Multiple micro-led (Micro Light-Emitting Diode, Mic-LED) on plate, each miniature light-emitting diodes
The anode of pipe is corresponding to be electrically connected with the image element circuit on array base palte, multiple micro-led including micro- for glowing
Type light emitting diode, for the micro-led of green light and for the micro-led of blue light-emitting.
The embodiment of the present invention also provides a kind of display device 400, and the top view of the display device 400 is as shown in figure 9, Fig. 9
In, display device 400 includes any of the above-described kind of display panel 300.
Display device 400 can be such as touch display screen, mobile phone, tablet PC, notebook computer or television set
Any electronic equipment with display function.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements done etc., it should be included within the scope of protection of the invention.
Claims (11)
- A kind of 1. pressure sensitive sensor, it is characterised in that including：First signal input part, secondary signal input, the first signal output part and secondary signal output end；First connecting bridge, the second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge；First connecting bridge, second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge include first End and the second end；Second end of first connecting bridge is connected with the first end of second connecting bridge with first signal output part；Second end of second connecting bridge is connected with the first end of the 3rd connecting bridge with first signal input part；Second end of the 3rd connecting bridge is connected with the first end of the 4th connecting bridge with the secondary signal output end；Second end of the 4th connecting bridge is connected with the first end of first connecting bridge with the secondary signal input；First connecting bridge, the second connecting bridge, the 3rd connecting bridge and the 4th connecting bridge are wire connecting bridge；First connecting bridge arrangement nested with second connecting bridge, the 3rd connecting bridge are nested with the 4th connecting bridge Arrangement；In a first direction, first connecting bridge is different from the length of second connecting bridge, and/or, in a second direction, First connecting bridge is different from the length of second connecting bridge；In said first direction, the 3rd connecting bridge is different from the length of the 4th connecting bridge, and/or, described On two directions, the 3rd connecting bridge is different from the length of the 4th connecting bridge；Wherein, the first direction is mutually perpendicular to the second direction.
- 2. pressure sensitive sensor according to claim 1, it is characterised in thatThe length of first connecting bridge in said first direction, more than first connecting bridge in this second direction Length, the length of second connecting bridge in said first direction, less than second connecting bridge in this second direction Length.
- 3. pressure sensitive sensor according to claim 2, it is characterised in thatThe length of 3rd connecting bridge in said first direction, more than the 3rd connecting bridge in this second direction Length, the length of the 4th connecting bridge in said first direction, less than the 4th connecting bridge in this second direction Length.
- 4. pressure sensitive sensor according to claim 2, it is characterised in thatThe length of 3rd connecting bridge in said first direction, less than the 3rd connecting bridge in this second direction Length, the length of the 4th connecting bridge in said first direction, more than the 4th connecting bridge in this second direction Length.
- 5. pressure sensitive sensor according to claim 1, it is characterised in thatThe length of first connecting bridge in said first direction, more than first connecting bridge in this second direction Length, the length of second connecting bridge in said first direction, more than second connecting bridge in this second direction Length.
- 6. pressure sensitive sensor according to claim 5, it is characterised in thatThe length of 3rd connecting bridge in said first direction, less than the 3rd connecting bridge in this second direction Length, the length of the 4th connecting bridge in said first direction, less than the 4th connecting bridge in this second direction Length.
- 7. pressure sensitive sensor according to claim 1, it is characterised in thatWith second connecting bridge in the shape of a spiral, the 3rd connecting bridge and the 4th connecting bridge are in spiral shell to first connecting bridge Revolve shape.
- 8. pressure sensitive sensor according to claim 1, it is characterised in thatFirst connecting bridge and the second connecting bridge indention, the 3rd connecting bridge is with the 4th connecting bridge in saw Tooth form.
- 9. pressure sensitive sensor according to claim 1, it is characterised in that first connecting bridge, the second connecting bridge, The material of 3rd connecting bridge and the 4th connecting bridge is non-crystalline silicon.
- 10. a kind of display panel, it is characterised in that the display panel includes：Substrate, the substrate include viewing area and the non-display area around the non-display area；Thin film transistor (TFT) positioned at the substrate viewing area, the thin film transistor (TFT) include active layer and metal level；Pressure sensitive sensor as described in any one of claim 1~9, set on the substrate, the pressure sensitive passes Sensor is prepared with the active layer or the metal level with layer.
- 11. a kind of display device, it is characterised in that the display device includes display panel as claimed in claim 10.
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| CN201711068788.XA CN107797706B (en) | 2017-11-03 | 2017-11-03 | Pressure induction sensor, display panel and device |
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| CN201711068788.XA CN107797706B (en) | 2017-11-03 | 2017-11-03 | Pressure induction sensor, display panel and device |
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| CN107797706B (en) | 2020-12-01 |
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