CN106502479A - Touch display unit - Google Patents
Touch display unit Download PDFInfo
- Publication number
- CN106502479A CN106502479A CN201510560327.9A CN201510560327A CN106502479A CN 106502479 A CN106502479 A CN 106502479A CN 201510560327 A CN201510560327 A CN 201510560327A CN 106502479 A CN106502479 A CN 106502479A
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- Prior art keywords
- touch
- electrode
- pressure sensitive
- display unit
- driving electrodes
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Abstract
The present invention relates to a kind of touch display unit, including the capacitance touch screen that arranges in lamination and display module, the capacitance touch screen includes touching driving electrodes and touch sensible electrode, driving electrodes and the touch sensible electrode of touching puts on the touch signal on capacitance touch screen for sensing, the touch display unit also includes pressure sensitive electrode, the pressure sensitive electrode is located at same lamination with touch driving electrodes or touch sensible electrode, the touch display unit also includes a surface conductance and the plate body with the pressure sensitive electrode contraposition, the pressure sensitive electrode forms capacitive sensing device with the plate body and puts on the pressure signal on capacitance touch screen for sensing.In the present invention without the need for additionally arrange pressure sensor i.e. can achieve pressure signal sensing, and for induction pressure signal pressure sensitive electrode can with for sense touch signal touch control electrode while make, have the advantages that low production cost, process is simple.
Description
Technical field
The present invention relates to touch-control display field, more particularly to a kind of touch with pressure sensitive function shows
Device.
Background technology
Touch-screen is because having ease for operation, flexibility, it has also become PMC equipment and synthesis
Primary human's interactive meanses of information terminal (such as mobile phone, panel computer and super notebook computer etc.).Phase
For resistive touch screen and the touch-screen of alternate manner, capacitive touch screen with low cost, simple structure and
The advantage such as durable, is gradually widely used by intelligent terminal.However, existing capacitance touch screen only perceives screen body
The touch location of place plane and operation, it is difficult to perceive the touch for putting on that the pressure change in screen body surface face is brought
Parameter.
In order to be able to sense the pressure change in screen body surface face, dealer's integrated pressure sensor in the touch-screen.But
Existing way is to pile up pressure sensor in touch-screen, it is difficult to the integrally-built letter to touch-screen
Change is made contributions so that the production cost of the touch-screen with pressure sensor is higher.
Content of the invention
It is based on this, it is necessary to which the complex structure, production cost for the touch-screen with pressure sensor is high
Problem, there is provided a kind of simple structure, the touch display unit of low production cost.
A kind of touch display unit, including the capacitance touch screen that arranges in lamination and display module, the electric capacity
Touch-screen includes touching driving electrodes and touch sensible electrode, the touch driving electrodes and touch sensible electrode
The touch signal on capacitance touch screen is put on for sensing, and the touch display unit also includes pressure sensitive
Electrode, the pressure sensitive electrode are located at same lamination with touch driving electrodes or touch sensible electrode, described
Touch display unit also includes a surface conductance and the plate body with the pressure sensitive electrode contraposition, the pressure
Induction electrode forms capacitive sensing device with the plate body and puts on the pressure letter on capacitance touch screen for sensing
Number.
Above-mentioned touch display unit obtains the pressure signal of touch operation by way of monitoring electric capacity, while structure
A termination electrode into the capacitance sensor for pressure signal sensing is located at for the touch letter such as touching position information
Number sensing touch control electrode same lamination on, without the need for additionally arrange pressure sensor i.e. can achieve pressure signal
Sensing, and for induction pressure signal pressure sensitive electrode can with for sense touch signal touch-control electricity
Make while pole, have the advantages that low production cost, process is simple.
Wherein in one embodiment, the display module include in lamination arrange polaroid, optical filter and
Liquid crystal layer；Wherein described pressure sensitive electrode, touch driving electrodes and touch sensible electrode are integrated and are arranged on liquid
In crystal layer, or the pressure sensitive electrode, touch driving electrodes and touch sensible electrode are arranged on polaroid
And optical filter between.
Wherein in one embodiment, the capacitance touch screen also includes carrying touch driving electrodes, touches sense
The substrate of electrode, the pressure sensitive electrode is answered to share base with the touch driving electrodes or touch sensible electrode
Plate the same surface positioned at substrate.
Wherein in one embodiment, the capacitance touch screen also includes cover sheet, and the cover sheet is made
For carrying the substrate for touching driving electrodes and/or touch sensible electrode.
Wherein in one embodiment, the capacitance touch screen also includes carrying the first base for touching driving electrodes
Plate and the second substrate of carrying touch sensible electrode, the pressure sensitive electrode are arranged on first substrate or second
On substrate.
Wherein in one embodiment, the pressure sensitive electrode with touch driving electrodes or touch sensible electrode
Between arrange earth lead.
Wherein in one embodiment, the pressure sensitive distribution of electrodes in the center of capacitance touch screen, corner,
Edge is distributed in whole capacitance touch screen in an array manner.
Wherein in one embodiment, the area for being distributed in the pressure sensitive electrode of capacitance touch platen edge is more than
It is distributed in the area of the pressure sensitive electrode at the center of capacitance touch screen.
Wherein in one embodiment, the plate body is metal plate, or the plate body by insulating substrate and
Metal base is composited, or the plate body includes insulating substrate and is arranged at the conduction on insulating substrate surface
Layer.
Wherein in one embodiment, the plate body is the center for supporting display module.
Wherein in one embodiment, surface conductance of the plate body towards the side of the capacitance touch screen.
Wherein in one embodiment, the conductive layer is to be arranged on connecing for display module upper surface or lower surface
The conductive layer on ground.
Wherein in one embodiment, the conductive layer is the metal casing below display module.
Wherein in one embodiment, also include processor, the processor is used for controlling the pressure sensitive
The work schedule of the work schedule of electrode and the touch driving electrodes and touch sensible electrode staggers, and makes pressure
The sensing of force signal and the sensing of touch signal do not interfere with each other.
Wherein in one embodiment, the touch display unit also includes processor, and the processor makes institute
State pressure sensitive electrode and first state and the second state, wherein in the first state, the pressure are provided
Induction electrode is arranged to sense touch signal, in second state, the pressure sensitive electrode quilt
It is configured to induction pressure signal.
Description of the drawings
The part-structure of the capacitance touch screen in the touch display unit that Fig. 1 is provided by one embodiment of the invention
Schematic diagram.
Another part of capacitance touch screen in the touch display unit that Fig. 2 is provided by one embodiment of the invention
Structural representation.
The part knot of the capacitance touch screen in the touch display unit that Fig. 3 is provided by another embodiment of the present invention
Structure schematic diagram.
The part knot of the capacitance touch screen in the touch display unit that Fig. 4 is provided by further embodiment of this invention
Structure schematic diagram.
The part knot of the capacitance touch screen in the touch display unit that Fig. 5 is provided by yet another embodiment of the invention
Structure schematic diagram.
The cross section structure schematic diagram of the touch display unit that Fig. 6 is provided by one embodiment of the invention.
The cross section structure schematic diagram of the touch display unit that Fig. 7 is provided by another embodiment of the present invention.
The cross section structure schematic diagram of the touch display unit that Fig. 8 is provided by further embodiment of this invention.
Specific embodiment
The touch display unit that the present invention is provided can be handed over touch as types such as mobile phone, panel computers
The display terminal of mutual form.
The touch display unit includes capacitance touch screen and the display module arranged in lamination, and carries electricity
Hold touch-screen, the plate body of display module.
In one embodiment, the capacitance touch screen includes cover sheet, touches driving electrodes, touch sensible electricity
Pole and substrate.Substrate is used for carrying touch driving electrodes and touch sensible electrode.Cover sheet is used for protection group
Plate, the touch structure such as driving electrodes and touch sensible electrode.
Touch driving electrodes and touch sensible electrode can be distributed in the GF on same base material, such as alleged by industry
Structure, GF2 structures etc., or be distributed in two different base materials respectively, such as the GFF structures alleged by industry.
In some other embodiments, touch driving electrodes and touch sensible electrode can also be formed in cover sheet
Medial surface and cause cover sheet to have the function of capacitance sensor concurrently.If touching driving electrodes and touch sensible electricity
Pole is both formed on cover sheet, then be used for carrying touch driving electrodes and the substrate of touch sensible electrode is protected
Protecting cover plate replaces, and this kind of structure is referred to as OGS structures by industry.In some other embodiments, this two kinds are touched
A kind of surface that can also be formed in the substrate for fitting in cover sheet in control electrode, such as alleged by industry
G1F structures.
In some other embodiments, the display module include lamination arrange polaroid, optical filter and
Liquid crystal layer.Display module is also included for driving the other structures such as the thin film transistor (TFT) of liquid crystal.Wherein described tactile
Touch driving electrodes and touch sensible electrode and integrate and be arranged in liquid crystal layer that (structure of above-mentioned capacitance touch screen is by industry
Boundary be referred to as in-cell structures), or described touch driving electrodes and touch sensible electrode be arranged on polaroid and filter
Between mating plate, (structure of above-mentioned capacitance touch screen is referred to as on-cell structures by industry.).
Driving electrodes and the touch sensible electrode of touching puts on the touch letter on capacitance touch screen for sensing
Number.The touch signal includes contact on the two-dimensional directional parallel to capacitance touch screen, slip, dragging etc.
Touch input signal, or even including (suspending and touching every empty input signal on capacitance touch screen direction
Control signal) or capacitance touch platen edge side (for example bending the arc-shaped side edges of screen) touch input signal.
The plate body is conductive plate body.The plate body as capacitance touch screen, the carrier of display module, if having
Necessity, plate body itself can make insulation processing with the element in capacitance touch screen, display module.When the touch
When display device is mobile phone, the plate body can be the center of mobile phone.Plate body is located in phone housing, plate body
Side be used for carry the components and parts such as capacitance touch screen, display module and the mainboard of touch display unit, plate body
Opposite side then components and parts such as placing battery.When the touch display unit is other kinds of equipment,
Can be similar sheet material.
The plate body can be metal material, and adopt same grounding with touch display unit.Or it is described
Plate body includes that insulating substrate and metal base are composited, and adopts same grounding with touch display unit.
Or the plate body includes insulating substrate and is arranged at the conductive layer of one side surface of insulating substrate and aobvious with touching
Showing device adopts same grounding.
The touch display unit also includes that pressure sensitive electrode, the pressure sensitive electrode drive electricity with touching
Pole or touch sensible electrode are located at same lamination, and the pressure sensitive electrode is opposed with conductive plate body, forms electricity
Hold inductor and the pressure signal on capacitance touch screen is put on for sensing.
The pressure sensitive electrode is located at same lamination, Ke Yili with touch driving electrodes or touch sensible electrode
Xie Wei, when driving electrodes are touched and touch sensible electrode is not located on same substrate, pressure sensitive electrode was both
Can be located on same substrate with driving electrodes are touched, it is also possible to be located on same substrate with touch sensible electrode；
It is located on same substrate or during same lamination when driving electrodes and touch sensible electrode is touched, then pressure sensitive
Electrode is located on same substrate or same lamination with driving electrodes, touch sensible electrode is touched.Specifically, when
When touching driving electrodes and touch sensible distribution of electrodes on same base material, then pressure sensitive electrode is also distributed in
On one base material.When driving electrodes and touch sensible distribution of electrodes is touched on different substrate materials, pressure sensitive
Electrode optionally can be distributed on one of base material.In certain embodiments, the guarantor of capacitance touch screen
Protecting cover plate can be used as one of base material.Integrate when touch driving electrodes and touch sensible electrode and be arranged on liquid
When in crystal layer, pressure sensitive electrode is also disposed in liquid crystal layer.When touch driving electrodes and touch sensible electrode
When being arranged between polaroid and optical filter, pressure sensitive electrode is also disposed between polaroid and optical filter.
In above-mentioned touch display unit, pressure sensitive electrode forms capacitance sensing with the plate body in ground connection
Device.When bringing pressure to bear on capacitance touch screen, the faint changes of d of the distance between pressure sensitive electrode and plate body
Little, according to the computing formula C=ε S/4 π kd of electric capacity, it is known that the electricity formed between pressure sensitive electrode and plate body
The capacitance for holding sensor becomes big.As different touch pressures on capacitance touch screen makes each of capacitance touch screen
Individual position can produce corresponding strain, and then produce the change of corresponding d values.Accordingly, electric capacity can be set up
The capacitance variation information of the capacitance sensor formed by pressure sensitive electrode and plate body described in touch-screen and electricity
Hold the correlation database by force information of touch-screen.In actual applications, according to capacitance touch screen stress
Afterwards, the capacitance variation information of each capacitance sensor formed by pressure sensitive electrode and plate body that detection is obtained
Can obtain capacitance touch screen by force information.
The touch display unit in different embodiments is described further below with reference to accompanying drawing.Wherein, touch
Touching the touch display screen in display device includes cover sheet and two substrates, and the touch in touch display screen is driven
Moving electrode and touch sensible electrode are correspondingly arranged on one of substrate respectively.In one specific embodiment, institute
Cover sheet is stated for glass material, the substrate is film material, namely the structure quilt of above-mentioned capacitance touch screen
Industry is referred to as GFF structures.
As shown in figure 1, the substrate 10 in for capacitance touch screen, and form touch drive on the substrate 10
Moving electrode 11 and pressure sensitive electrode 30.As shown in Fig. 2 another substrate 20 in for capacitance touch screen with
And formation touch sensible electrode 21 on the base plate 20.Wherein substrate 10 compared to substrate 20 away from protection cap
Plate, namely substrate 20 is positioned between cover sheet and substrate 10.Touch sensible electrode 21 in Fig. 2 is length
Square, it is possible to understand that to be not limited to this kind of shape, touch sensible electrode 21 is guided to substrate by lead 210
20 interface end 201.Touch sensible electrode 21 is with touch driving electrodes 11 collectively as capacitance touch screen
Element in touch sensing unit, puts on the touch signal on capacitance touch screen for sensing.Described
Touch signal includes the touch inputs such as contact on the two-dimensional directional parallel to capacitance touch screen, slip, dragging
Signal, in addition including on capacitance touch screen direction every empty input signal (i.e. suspension touch control signal)
Or the touch input signal of the side (for example bending the arc-shaped side edges of screen) of capacitance touch platen edge.
Lead 110 is additionally provided with the substrate 10 to be guided driving electrodes 11 are touched to the interface end of substrate 10
101.Likewise, also be provided with lead 300 on the substrate 10 pressure sensitive electrode 30 is guided to substrate 10
Interface end 101.In this embodiment, pressure sensitive electrode 30 with the formal distribution of electrode block array in base
On plate 10.It is distributed in the face of the pressure sensitive electrode 30 of capacitance touch platen edge (namely 10 edge of substrate)
Product is slightly larger than the pressure sensitive electrode 30 at the center (namely 10 center of substrate) for being distributed in capacitance touch screen
Area, it is however generally that, the center of capacitance touch screen is easier to deformation, is arranged such pressure sensitive electrode
30 area can consider the position of capacitance touch screen and deformation size, balance the pressure sensitive spirit of each position
Sensitivity.Pressure sensitive electrode 30 is surrounded by driving electrodes 11 are touched, and is only reserved between passing through for lead 300
Gap.
In different embodiments, outside pressure sensitive electrode 30 can also be located at and touch driving electrodes 11 not
Touched driving electrodes 11 to surround.For reducing or avoiding for sensing the touch driving electrodes 11 of touch signal
The impact of (or touch sensible electrode 21) to the pressure sensitive electrode 30 for induction pressure signal, two kinds of electricity
Can be separated with earth lead (not shown) between pole.Meanwhile, on the substrate 10, each electrode and lead
Periphery using one ground connection wire 40 surround, with reduce avoid in touch display unit or outside electromagnetism
Impact of the field to the sensing of touch signal and pressure signal.
Fig. 3 is the substrate 10 of the capacitance touch screen in another embodiment and touches driving electrodes 11, pressure sensitive
The structural representation of electrode 30.Wherein pressure sensitive electrode 30 is distributed in capacitance touch with several electrode blocks
The center of the substrate 10 of screen.
Fig. 4 is the substrate 10 of the capacitance touch screen in another embodiment and touches driving electrodes 11, pressure sensitive
The structural representation of electrode 30.Wherein pressure sensitive electrode 30 is only surrounded by partial touch driving electrodes 11,
I.e. another part is touched driving electrodes 11 and is respectively and independently separated with pressure sensitive electrode 30, does not form encirclement
With besieged relation.
Fig. 5 is the substrate 10 of the capacitance touch screen in another embodiment and touches driving electrodes 11, pressure sensitive
The structural representation of electrode 30.Wherein pressure sensitive electrode 30 each independently divides with driving electrodes 11 are touched
Open, and be each spaced apart in ribbon.Specifically, if two touch interval setting between driving electrodes 11
Dry in block pressure sensitive electrode 30, the 30 linear arrangement of spaced pressure sensitive electrode.For drop
Low or avoid for sensing the touch driving electrodes 11 (or touch sensible electrode 21) of touch signal to for feeling
The impact of the pressure sensitive electrode 30 of pressure signal is answered, the wire (figure of ground connection between two kinds of electrodes, can also be used
Do not show) separate.
In the above-described embodiment, the shape of pressure sensitive electrode 30 is being illustrated as square, but should manage
Solution is not limited to square, or and other shapes, such as triangle, rectangle, prismatic, trapezoidal etc.；
Touch driving electrodes 11 and be illustrated as rectangle, it should be understood that being not limited to rectangle, or its
Its shape.
In the aforementioned embodiment, pressure sensitive electrode 30 can also be located on another substrate 20, i.e. feeling of stress
Electrode 30 is answered to be located at same lamination with touch sensible electrode 21.In this kind of structure, pressure sensitive electrode 30
With the position relationship of touch sensible electrode 21, and the pressure sensitive electrode 30 in previous embodiment driven with touching
The position relationship of moving electrode 11 is similar to.
For the capacitance touch screen of other structures, such as GF, OGS, G1F, GF2, in-cell alleged by industry,
The structures such as on-cell, pressure sensitive electrode 30 are located at same with touch driving electrodes 11 or touch sensible electrode 21
One lamination.In the structures such as GF, OGS, on-cell, in-cell, driving electrodes are touched with touch sensible electricity
Pole is located at same lamination, then pressure sensitive electrode 30 is distributed in touch driving electrodes 11 and/or touch sensible electricity
The side of pole 21, also can be touched driving electrodes 11 and/or touch sensible electrode 21 is surrounded.In the industry cycle alleged
The structure such as G1F, GF2 in, shown in the embodiment of the distribution of pressure sensitive electrode 30 and aforementioned GFF structures
Structure be similar to.
The above-mentioned touch display unit with pressure sensitive function work operation when, for avoid touch signal and
The detection of both pressure signals produces mutually impact, can make the sensing of touch signal by the way of SECO
Run with the sensing time-sharing work of pressure signal, do not produce mutually dry when corresponding function is realized so as to each leisure
Disturb.The mode of the SECO can be carried out by connecting the processor of capacitance touch screen, it is also possible to by volume
The element such as outer processor and memory carries out SECO.In above-mentioned touch display unit, independently can set
Put the processor for sensing touch signal and for induction pressure signal.For reduces cost, may also be employed same
One processor carries out the monitoring of touch signal and pressure signal.
For avoiding thin film transistor (TFT) in display module and liquid crystal pixel electrodes operationally to pressure signal sense
The impact that answers, can also arrange the elements such as other processor and memory in the touch display unit, pass through
Described processor and memory can further make the work of the thin film transistor (TFT) of display module and pressure signal
Sensitive time in different time period work operations, i.e., in induction pressure signal, the film of display module
Transistor is in off position.
Further, in the touch display unit, the pressure sensitive electrode for induction pressure signal can
To adopt common electrode with the touch driving electrodes or touch sensible electrode for sensing touch signal, i.e., same
Electrode can be not only used for induction pressure signal and can also be used for sensing touch signal.Under this kind of situation, described touch shows
Showing device also includes the elements such as extra processor and memory, and these common electrodes can be made to provide at first
State and the second state；Wherein in the first state, the common electrode is arranged to parallel to electricity
Hold touch-screen two-dimensional directional on touch signal detection, and on touch panel direction every
The touch signals such as the detection of touch-control input of the side of the detection or device edge of empty input (i.e. suspension touch control)
Sensing, in second state, the common electrode is configured to form some capacitive sensing devices with plate body,
Detection for pressure signal.By taking Fig. 1 as an example, pressure sensitive electrode 30 on the substrate 10 can be made
For common electrode, i.e., pressure sensitive electrode 30 is in addition to induction pressure, it is also possible to as touched driving electrodes 11
Equally loading touches drive signal.Such as in the T1 time periods, wherein one touches driving electrodes 11 and its is surrounded
Pressure sensitive electrode 30 be loaded concurrently touch drive signal, such as load driver voltage；In the T2 times
Section, the driving electrodes 11 are not loaded with driving voltage, in floating state, and corresponding pressure sensitive electrode 30
Cut-in pressure sensing detection circuit is used for detecting pressure.Substrate 10 can be controlled by extra processor
On common electrode working condition.Further, the time-sharing work state of this common electrode can pass through
Existing touch-control circuit is realized.
The cross section structure schematic diagram of the touch display unit that Fig. 6 is provided by one embodiment of the invention, structure show
The glue or OCA for fitting is not marked in intention.In the structural representation of the embodiment, capacitance touch
The touch driving electrodes 11 of screen and touch sensible electrode 21 are on different substrates 10,20, for being formed
At the touch driving electrodes 11 of the pressure sensitive electrode 30 and capacitance touch screen of the capacitance sensor of detection pressure
On same substrate 10.Capacitance touch screen in the touch display unit is also included positioned at touch sensible electrode
Cover sheet 100 above in the of 21, the touch display unit also include the display below capacitance touch screen
Module 50 and the plate body of Support Capacitor touch-screen and display module 50.Exist between plate body and display module 50
Space 500.Plate body is the center 51 for supporting capacitance touch screen and display module 50 in this embodiment, center
51 at least surface conductances, and take and the same grounding of touch display unit.The center 51 can be gold
Category material, or the compound plate body that center 51 is insulating substrate and metal base, and metal material is located at insulation
Side of the material towards capacitance touch screen, or the center 51 includes insulating substrate and is arranged at insulating substrate
The conductive layer of side.
Referring to Fig. 7, plate body can also be the existing gold for protecting display module 50 and for electromagnetic shielding
Category backplate 52, located immediately at the lower section of display module 50.
Additionally, when the center 51 that both there is support display module 50 in touch display unit, there is also protection aobvious
Show the metal casing 52 of module, and during using center 51 as the plate body of pressure sensitive, this setting may be done
Disturb the normal work of pressure sensitive.Therefore the metal casing 52 of display module 50 is adopted not with the center 51
Same grounding.Further, when needing the capacitive sensing device for detecting pressure to work, to display module
50 metal casing 52 is processed using suspension.
The cross section structure schematic diagram of the touch display unit that Fig. 8 is provided by another embodiment of the present invention, structure
The glue or OCA for fitting is not marked in schematic diagram.In the structural representation of the embodiment, capacitive touch
The touch driving electrodes 11 and touch sensible electrode 21 for touching screen are on different substrates 10,20, for shape
Pressure sensitive electrode 30 and the touch driving electrodes 11 of capacitance touch screen into the capacitance sensor of detection pressure
On same substrate 10.Capacitance touch screen in the touch display unit is also included positioned at touch sensible electricity
Cover sheet 100 above pole 21, the touch display unit also include aobvious below capacitance touch screen
Show the plate body of module 50 and Support Capacitor touch-screen and display module 50.Deposit between plate body and display module 50
In space 500.In this embodiment, there is a conductive layer 53 upper surface of display module 50, adopts and touch
The same grounding of display device, the conductive layer 53 can be prepared in by modes such as evaporation, sputtering, printings
The surface of display module 50, it is also possible to be covered on above display module 50 by conductive membrane material.The display mould
The conductive layer 53 on 50 surfaces of group serves as the function of plate body, with the pressure for detecting pressure in capacitance touch screen
Power induction electrode forms capacitance sensor, to realize the pressure detecting function of touch display unit.Additionally, institute
The conductive layer 53 on 50 surface of display module that states can also be located at the lower surface of display module 50.
The present invention obtains the pressure signal of touch operation by way of monitoring electric capacity, simultaneously constitutes for pressure
One termination electrode of the capacitance sensor of induction of signal is located at touching for the sensing of the touch signals such as touching position information
On the same lamination of control electrode, the sensing of pressure signal is can achieve without the need for additionally arranging pressure sensor, and
Pressure sensitive electrode for induction pressure signal can be in for sensing the touch control electrode while system of touch signal
Make, have the advantages that low production cost, process is simple.
Each technical characteristic of embodiment described above arbitrarily can be combined, for making description succinct, not right
The all possible combination of each technical characteristic in above-described embodiment is all described, as long as however, these skills
There is no contradiction in the combination of art feature, be all considered to be the scope of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed,
But therefore can not be construed as limiting the scope of the patent.It should be pointed out that for this area
For those of ordinary skill, without departing from the inventive concept of the premise, some deformations can also be made and is changed
Enter, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be defined.
Claims (15)
1. a kind of touch display unit, including the capacitance touch screen that arranges in lamination and display module, the electricity
Holding touch-screen includes touching driving electrodes and touch sensible electrode, the touch driving electrodes and touch sensible electricity
Pole puts on the touch signal on capacitance touch screen for sensing, it is characterised in that the touch display unit
Also include that pressure sensitive electrode, the pressure sensitive electrode are located at touch driving electrodes or touch sensible electrode
Same lamination, the touch display unit also include a surface conductance and with the pressure sensitive electrode contraposition
Plate body, the pressure sensitive electrode form capacitive sensing device with the plate body and put on capacitive touch for sensing
Touch the pressure signal on screen.
2. touch display unit according to claim 1, it is characterised in that the display module includes
Polaroid, optical filter and the liquid crystal layer arranged in lamination；Wherein described pressure sensitive electrode, touch drive electricity
Pole and touch sensible electrode are integrated and are arranged in liquid crystal layer, or the pressure sensitive electrode, touch drive electricity
Pole and touch sensible electrode are arranged between polaroid and optical filter.
3. touch display unit according to claim 1, it is characterised in that the capacitance touch screen is also
Including carrying the substrate for touching driving electrodes, touch sensible electrode, the pressure sensitive electrode and the touch
Driving electrodes or touch sensible electrode common substrate the same surface positioned at substrate.
4. touch display unit according to claim 3, it is characterised in that the capacitance touch screen is also
Including cover sheet, the cover sheet touches the substrate of driving electrodes and/or touch sensible electrode as carrying.
5. touch display unit according to claim 1, it is characterised in that the capacitance touch screen is also
Including the second substrate for carrying the first substrate for touching driving electrodes and carry touch sensible electrode, the pressure
Induction electrode is arranged on first substrate or second substrate.
6. touch display unit according to claim 1, it is characterised in that the pressure sensitive electrode
Earth lead arrange between driving electrodes or touch sensible electrode with being touched.
7. touch display unit according to claim 1, it is characterised in that the pressure sensitive electrode
It is distributed in the center of capacitance touch screen, corner, edge or is distributed in whole capacitance touch in an array manner
In screen.
8. touch display unit according to claim 7, it is characterised in that be distributed in capacitance touch screen
Face of the area of the pressure sensitive electrode at edge more than the pressure sensitive electrode at the center for being distributed in capacitance touch screen
Product.
9. touch display unit according to claim 1, it is characterised in that the plate body is metallic plate
Body, or the plate body is composited by insulating substrate and metal base, or the plate body includes the base that insulate
Material and it is arranged at the conductive layer on insulating substrate surface.
10. touch display unit according to claim 9, it is characterised in that the plate body is for supporting
The center of display module.
11. touch display units according to claim 10, it is characterised in that the plate body is towards institute
State the surface conductance of the side of capacitance touch screen.
12. touch display units according to claim 9, it is characterised in that the conductive layer is to set
Put the conductive layer of the ground connection in display module upper surface or lower surface.
13. touch display units according to claim 9, it is characterised in that the conductive layer is aobvious
Show the metal casing below module.
14. touch display units according to any one in claim 1-13 item, it is characterised in that
Also include processor, the processor is used for controlling the work schedule of the pressure sensitive electrode and described touches
The work schedule for touching driving electrodes and touch sensible electrode staggers, and makes sensing and the touch signal of pressure signal
Sensing does not interfere with each other.
15. touch display units according to any one in claim 1-13 item, it is characterised in that
The touch display unit also includes processor, and the processor makes the pressure sensitive electrode provide the first shape
State and the second state, wherein in the first state, the pressure sensitive electrode is arranged to sensing and touches
Signal is touched, in second state, the pressure sensitive electrode is arranged to induction pressure signal.
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| CN201510560327.9A CN106502479B (en) | 2015-09-06 | 2015-09-06 | Touch display device |
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| CN201510560327.9A CN106502479B (en) | 2015-09-06 | 2015-09-06 | Touch display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844216A (en) * | 2017-10-25 | 2018-03-27 | 昆山龙腾光电有限公司 | A kind of touch display unit and its manufacture method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930132A (en) * | 2009-06-22 | 2010-12-29 | 上海天马微电子有限公司 | Integrated touch screen and detecting method thereof |
| US20110025631A1 (en) * | 2008-04-02 | 2011-02-03 | Han Sang-Youl | Capacitive touch screen |
| 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 |
| US20110080373A1 (en) * | 2009-10-07 | 2011-04-07 | Wintek Corporation | Touch Panel and Display Device Using the Same |
| JP2011227923A (en) * | 2011-07-11 | 2011-11-10 | Sony Corp | Display device with touch sensor |
| US20130335376A1 (en) * | 2011-03-07 | 2013-12-19 | Sung Ho Lee | Voltage difference-based capacitive touch detection device, capacitive touch detection method and capacitive touch screen panel, and display device with built-in capacitive touch screen panel |
| KR20140096905A (en) * | 2013-01-29 | 2014-08-06 | 엘지디스플레이 주식회사 | Touch display device |
| KR101506511B1 (en) * | 2013-09-23 | 2015-04-07 | 주식회사 하이딥 | Capacitive location and pressure touch sensing device |
| CN104516595A (en) * | 2013-09-27 | 2015-04-15 | 天津富纳源创科技有限公司 | Touch device |
| CN204926052U (en) * | 2015-09-06 | 2015-12-30 | 南昌欧菲光科技有限公司 | Touch display apparatus |
| US20160188039A1 (en) * | 2013-07-29 | 2016-06-30 | Hideep Inc. | Touch sensor panel, touch detection device and touch input device comprising same |
-
2015
- 2015-09-06 CN CN201510560327.9A patent/CN106502479B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110025631A1 (en) * | 2008-04-02 | 2011-02-03 | Han Sang-Youl | Capacitive touch screen |
| CN101930132A (en) * | 2009-06-22 | 2010-12-29 | 上海天马微电子有限公司 | Integrated touch screen and detecting method thereof |
| US20110080373A1 (en) * | 2009-10-07 | 2011-04-07 | Wintek Corporation | Touch Panel and Display Device Using the Same |
| 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 |
| US20130335376A1 (en) * | 2011-03-07 | 2013-12-19 | Sung Ho Lee | Voltage difference-based capacitive touch detection device, capacitive touch detection method and capacitive touch screen panel, and display device with built-in capacitive touch screen panel |
| JP2011227923A (en) * | 2011-07-11 | 2011-11-10 | Sony Corp | Display device with touch sensor |
| KR20140096905A (en) * | 2013-01-29 | 2014-08-06 | 엘지디스플레이 주식회사 | Touch display device |
| US20160188039A1 (en) * | 2013-07-29 | 2016-06-30 | Hideep Inc. | Touch sensor panel, touch detection device and touch input device comprising same |
| KR101506511B1 (en) * | 2013-09-23 | 2015-04-07 | 주식회사 하이딥 | Capacitive location and pressure touch sensing device |
| CN104516595A (en) * | 2013-09-27 | 2015-04-15 | 天津富纳源创科技有限公司 | Touch device |
| CN204926052U (en) * | 2015-09-06 | 2015-12-30 | 南昌欧菲光科技有限公司 | Touch display apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844216A (en) * | 2017-10-25 | 2018-03-27 | 昆山龙腾光电有限公司 | A kind of touch display unit and its manufacture method |
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|---|---|
| CN106502479B (en) | 2023-10-24 |
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