CN205721724U - Touch-control display panel - Google Patents
Touch-control display panel Download PDFInfo
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- CN205721724U CN205721724U CN201620536143.9U CN201620536143U CN205721724U CN 205721724 U CN205721724 U CN 205721724U CN 201620536143 U CN201620536143 U CN 201620536143U CN 205721724 U CN205721724 U CN 205721724U
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Abstract
This utility model provides a kind of touch-control display panel, including: first substrate；Touch-control structure layer, if side on the first substrate, comprises and presses detecting electrode；And pressure sensitive layer, it is positioned on first substrate and presses the side that detecting electrode deviates from mutually, pressure sensitive layer comprises: transparency conducting layer and the elastic layer between transparency conducting layer and first substrate, wherein, press formation pressure-induced capacitance structure between detecting electrode and transparency conducting layer, further, press detecting electrode to be multiplexed with from holding electrode.This utility model, by sharing touch control electrode when detecting pressing position and pressure, detects pressing position and by pressure size, it is achieved simple in construction and can have pressure touch function concurrently.
Description
Technical field
This utility model belongs to Display Technique field, is specifically related to a kind of touch-control display surface that can have pressure touch concurrently
Plate.
Background technology
Along with science and technology development, electronic display unit daily life, produce, work in play more and more important
Effect.In order to human-computer interaction function is better achieved, touch screen is widely used in each place as one input medium,
Such as mobile phone, notebook computer, electronic player etc..At present, the capacitive touch screen in touch screen due to have technique simple,
Life-span length, light transmittance are high, and can support the advantages such as multiple point touching, it has also become the touch screen technology of main flow now.At electric capacity
Formula touch screen comprises mutual capacitance type display touch screen and self-capacitance display touch screen.Fig. 1 is a kind of typical case in prior art
Self-tolerant display touch screen schematic diagram.Wherein, the touch control electrode block 11 of self-capacitance display touch screen 10 both drove as touch-control
Moving electrode is again as touch detection electrodes, and control unit 12 is driven to touch control electrode block input touch-control by touch control electrode cabling 13
Signal.When extraneous finger touches display screen, the electric capacity of touch control electrode 11 can change, and, by touch control electrode block 11
Sense the change of this electric capacity, so that it is determined that touch location.
But, self-capacitance shown in Fig. 1 display touch screen can not detect user when pressing by pressure,
Both there is no pressure touch function, and be unable to produce different perceptual signals according to different pressure sizes, thus perform phase
The operational order answered, thus reduce operability.
Utility model content
In view of this, this utility model provides a kind of touch-control display panel that can have pressure touch concurrently.
This utility model provides a kind of touch-control display panel, including: first substrate；Touch-control structure layer, is located at the first base
On the side of plate, comprise and press detecting electrode；And pressure sensitive layer, it is positioned at first substrate and presses what detecting electrode deviated from mutually
On side, pressure sensitive layer comprises: transparency conducting layer and the elastic layer between transparency conducting layer and first substrate, its
In, press formation pressure-induced capacitance structure between detecting electrode and transparency conducting layer, and, press detecting electrode and be multiplexed with from holding electricity
Pole.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that pressure sensitive layer
Also comprise: being folded between transparency conducting layer and first substrate the supporting frame for supporting first substrate, elastic layer is filled in
In supporting frame.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that backlight module, position
Deviate from the side of first substrate in pressure sensitive layer, be used for providing light source；And backlight supporting frame, it is located at backlight module with saturating
Between bright conductive layer, it is used for supporting transparency conducting layer.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that pressure sensitive layer
Also comprising signal pad, signal pad electrically connects with transparency conducting layer.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that signal pad is with saturating
Bright conductive layer is connected by conductive silver glue.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that driver element, with
Signal pad is connected, for providing control signal to transparency conducting layer.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that driver element carries
During the control signal of confession will be divided into display during a frame scan, during touch-control scanning and during pressing scanning, touch-control scans
Period alternates during display, and during pressing scanning, touch-control structure layer carries out touch-control sensing, wherein, during pressing scanning
In the clear area, end of every frame, and, during pressing scanning, control signal controls transparency conducting layer ground connection, thus presses
Power detects.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that transparency conducting layer
For indium oxide tin film layer.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that transparency conducting layer
It is integrally formed with supporting frame.
In the touch-control display panel embodiment that this utility model provides, also can have a feature in that second substrate, phase
Arranging first substrate, wherein, first substrate is array base palte, and second substrate is color membrane substrates, and on second substrate also
It is provided with and mixes the conducting film that antimony Indium sesquioxide. is made.
According to the touch-control display panel involved by this utility model, because the transparency conducting layer of pressure sensitive layer is tied with touch-control
Structure layer shares one layer of touch control electrode, forms pressure-induced capacitance between transparency conducting layer and touch control electrode, and according to the pressure applied
Power and the deformation that occurs, thus change the driving capacitance between transparency conducting layer and touch control electrode, it is achieved in that collection touch-control
Display floater is pressed the pressure size information of power, and this utility model by sharing touch-control electricity when detecting pressing position with pressure
Pole, detects pressing position and by pressure size, it is achieved simple in construction and can have pressure touch function concurrently.
Accompanying drawing explanation
Fig. 1 is the structural representation of touch-control display panel in prior art；
Fig. 2 is the structural representation of touch-control display panel in embodiment of the present utility model；
Fig. 3 is the operating diagram of touch-control display panel in embodiment of the present utility model；
Fig. 4 is the structural representation of pressure sensitive layer in embodiment of the present utility model；
Fig. 5 is the top view of touch-control display panel in embodiment of the present utility model；
Fig. 6 is the workflow diagram of touch-control display panel preparation method in embodiment of the present utility model；
Fig. 7 is the operating diagram of touch-control display panel preparation method in embodiment of the present utility model.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with accompanying drawing and
This utility model is described further by embodiment.
It should be noted that elaborate detail in the following description so that fully understanding this utility model.But
This utility model can be different from alternate manner described here implement with multiple, those skilled in the art can without prejudice to
Similar popularization is done in the case of this utility model intension.Therefore this utility model is not limited by following public detailed description of the invention
System.
＜ embodiment one ＞
Fig. 2 is the structural representation of touch-control display panel in embodiment of the present utility model.
As in figure 2 it is shown, the touch-control display panel 100 that the present embodiment is provided is for showing image, and when pressed,
Positional information and the pressure information of pressing can be detected such that it is able to according to the pressure size of position of touch and pressing, accordingly
It is controlled.Touch-control display panel 100 comprises array base palte 1, color membrane substrates 2, liquid crystal layer 3, touches structure sheaf 4, pressure sensitive
Layer 5, backlight module 6, backlight supporting frame 7 and driver element (not shown).In this example it is shown that unit is liquid
Crystal layer, it is of course also possible to use other display unit.
Array base palte 1, as first substrate, comprises multiple TFT, data wire, scan line etc., is used for controlling pixel light emission.
Color membrane substrates 2, as second substrate, is arranged oppositely with array base palte 1 phase, color membrane substrates 2 include underlay substrate and
The colored filter being formed on underlay substrate, is used for realizing colored display.It is additionally provided with on color membrane substrates 2 by mixing antimony Indium sesquioxide. system
The conducting film 21 become.Conducting film 21 can derive user electrostatic of band people when touching.
Liquid crystal layer 3 is formed between color membrane substrates 1 and array base palte 2, comprises and can carry out according to the direction of inflow current
The liquid crystal molecule of arrangement.It is not elaborated at this.
Operating diagram when Fig. 3 is the touch of touch-control display panel in embodiment of the present utility model.
As it is shown on figure 3, touch-control structure layer 4 is located on array base palte 1.Touch-control structure layer 4, by sending electric field upwards, comes
Gather the positional information of the touch location of user finger, thus the touch signal of finger detected.Touch-control structure layer 4 is from holding
Formula touch-control, has one layer and presses detecting electrode 40, from the point of view of the direction shown in Fig. 3, presses detecting electrode 40 on array base palte 1
Side.In the present embodiment, touch control electrode not only as touch-control drive electrode but also as touch detection electrodes, touch detection electrodes be from
Hold electrode.Its work process is: after the display scanning completing each frame display picture, touch-control drives line load touch-control and drives
Signal carries out touch-control scanning, and detects the voltage signal that touch detection electrodes is coupled out by inductance capacitance, in the process, has
During human contact's touch screen, human body electric field will act on inductance capacitance, makes the capacitance of inductance capacitance change, and then
Change the voltage signal that touch induction lines is coupled out, according to the change of voltage signal, it is possible to determine touch location.
In the present embodiment, in array base palte, color membrane substrates, liquid crystal layer and touch-control structure layer can be in prior art
Embedded touch screen framework, In-cell touch panel can be self-tolerant touch screen.In the present embodiment, by existing embedded
Touch screen framework increases pressure sensitive layer and realizes integrated pressure touch controllable function on existing touch screen.
Pressure sensitive layer 5 is oppositely arranged with array base palte 1, and is positioned in array base palte 1 and deviates from touch-control structure layer 4 phase
Side, for gather finger press screen time by the pressure information of pressure.Pressure sensitive layer 5 is located at and touch-control structure
Layer 4 opposing side, so can avoid pressure sensitive layer 5 on touch-control structure layer 4 touch detection time impact.
Backlight module 6, is located at the array base palte 1 side away from color membrane substrates 2, from the point of view of the direction shown in Fig. 2, backlight mould
Group 6 is positioned at the lower section of array base palte 1, and is positioned at the lower section of pressure sensitive layer 5.Backlight module 6 is for providing light to liquid crystal layer 3
Source, so liquid crystal layer 3 according to inflow current transmit with pattern relative to light, thus realize pattern displaying.
Backlight supporting frame 7 is located between backlight module and pressure sensitive layer 5, for reducing the gap pair of backlight module 6
The decay of the power of finger pressing.
Driver element is used for providing control signal, and the control signal provided is at every frame gap time control pressing pressure inductive layer
5 ground connection, thus carry out pressure detecting.Driver element provides control by signal pad to the detecting electrode 40 that presses of touch-control structure layer 4
Signal processed.
Fig. 4 is the structural representation of pressure sensitive layer in embodiment of the present utility model.
As shown in Figure 4, pressure sensitive layer 5 comprises: transparency conducting layer 51, supporting frame 52, elastic layer 53 and signal pad
54.Transparency conducting layer 51 setting corresponding with array base palte 1, and transparency conducting layer 51 projects to the projection on array base palte 1
Region can cover touch control electrode.Supporting frame 52 is the supporting construction having and having some strength, and supporting frame 52 is located at
The surrounding of bright conductive layer 51, and upper end face is close to the lower surface of array base palte 1.
Pressure sensitive layer 5 and touch-control structure layer 4 share one layer and press detecting electrode 40, transparency conducting layer 51 with press detection
Electrode 40 forms pressure-induced capacitance, thus realizes the pressure sensitive layer 5 collection to pressure information.
In the cavity that supporting frame 52, transparency conducting layer 51 and array base palte 1 surround, insert elastic layer 53. elastic layer
53 have bigger deformation quantity when being under pressure.
In the present embodiment, transparency conducting layer 51 is indium oxide tin film layer (ITO).Owing to indium oxide tin film layer has excellent
Electric conductivity and there is the advantage that transparency is high, present ITO makes technique also comparative maturity, so can reduce and be fabricated to
This.It addition, supporting frame 52 has some strength, when receiving pressure, the deformation quantity of generation is far smaller than the shape of elastic layer 53
Variable, so, when user is by finger pressing touch-control display panel 1, the deflection of pressing center can be more than periphery
Deflection, in such manner, it is possible to be accurately positioned out the center of pressing.
As shown in Figure 4, the signal pad 54 of pressure sensitive layer 5 communicates with driver element and is connected.Driver element passes through signal
Pad 54 provides control signal to transparency conducting layer 51.In the present embodiment, signal pad can be driven by the connection of panel metal routing
Moving cell.
In the present embodiment, transparency conducting layer 51 is conductively connected with signal pad 54 phase, so that transparency conducting layer 51 connects
Receive the control signal that driver element sends.In the present embodiment, it is coated with cloth material connection transparency conducting layer 51 and letter by conduction
Number pad 54, further, conduction be coated with cloth material can be conductive silver glue.
Fig. 5 is the operating diagram during pressing of touch-control display panel in embodiment of the present utility model.
During as it is shown in figure 5, user is by finger pressing conducting film 21, the control signal of driver element output controls transparent
Conductive layer 51 ground connection, therefore, when pressing, presses the pressure-induced capacitance C1 that detecting electrode 40 and transparency conducting layer 51 formed and becomes
Change, owing to elastic layer 53 deforms upon under pressing power effect so that press between detecting electrode 40 and transparency conducting layer 51
There is significant change in electric capacity C1, meanwhile, presses the electric capacity C2 formed between detecting electrode 40 and conducting film 21 and also can change,
Therefore, the electric capacity Cf=C1+C2 of pressing, and Cf change with press pressure size become certain proportional relation.But, due to
The deformation quantity of electric capacity C2 is limited, therefore the change of C2 less part in accounting for Cf changing value.Finally, then by the changing value of Cf and
Certain algorithm just can position the positional information of pressing and corresponding pressure information, and then realizes pressure touch.
Fig. 6 is the sequential chart of the pulse signal that driver element provides in embodiment of the present utility model.
As shown in Figure 6, sequential SX is the signal that driver element makes touch-control structure layer 4；Sequential FT is that driver element is made
The signal of signal pad 54, when touching, touch-control structure layer 4 receives SX signal, and meanwhile, FT signal follows SX signal；Pressing
During pressure, as shown in pressing area in Fig. 6, control transparency conducting layer 51 ground connection.
Concrete, during including display during originally executing a frame scan of touch-control display panel in example, during touch-control scanning with
And during pressing scanning.During showing, conducting data signal source and data signal line, provide display for touch-control display panel
Drive signal, so that display picture is carried out display driving.Further, during touch-control inserts display between sweep time, therefore, touching
During control scanning, drive with the display interrupting carrying out showing picture, and touch control electrode block signal is carried out touch-control scanning, thus
It is arranged on during realizing scanning touch-control and originally carries out in the time that display drives, it is not necessary to just touch after completing a frame scan
Control scanning.Further, since pressing is without quickly reporting point (compressing time is the longest), inserts at every frame gap and press sweep time
Between, thus realize pressing detection.During a display temporal interpolation detectd enters touch-control scanning and during pressing scanning, these three
State does not interfere with each other.
<variation>
This variation is roughly the same with the structure of above-described embodiment, and difference is that the structure of pressure sensitive layer is different, therefore,
Identical numbering is given to structure same as the previously described embodiments.
Fig. 7 is the structural representation of touch-control display panel in variation of the present utility model.
As it is shown in fig. 7, the touch-control display panel 200 that the present embodiment is provided is for showing image, and when pressed,
Can detect positional information and the pressure information of pressing, touch-control display panel 200 comprises array base palte 1, color membrane substrates 2, liquid crystal
Layer 3, touch structure sheaf 4, pressure sensitive layer 250, backlight module 6, backlight supporting frame 7 and driver element (do not show in figure
Show).
Pressure sensitive layer 250 comprises: transparency conducting layer 251, supporting frame 252, elastic layer 253.Transparency conducting layer 251 with
The corresponding setting of array base palte 1, and transparency conducting layer 251 projects to the view field on array base palte 1 and can cover tactile
Control structure sheaf 4.Supporting frame 252 is the supporting construction having and having some strength, and supporting frame 252 is located at transparency conducting layer 251
Surrounding, and upper end face is close to the lower surface of array base palte 1.In the present embodiment, supporting frame 252 and transparency conducting layer
251 are formed as one, and it is electrically conducting transparent that entirety presents recessed Back Word type, marginal portion projection, and transparency conducting layer 251
Hard material.Elastic layer 253 is filled in the frame of supporting frame 252 and transparency conducting layer 251.
When pressing, transparency conducting layer 251 and the capacitance pressed between detecting electrode 40 change, and then realize pressure
Power touch controllable function.
Above content is to combine concrete preferred implementation further detailed description of the utility model, it is impossible to
Assert that of the present utility model being embodied as is confined to these explanations.Ordinary skill for this utility model art
For personnel, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should regard
For belonging to protection domain of the present utility model.
Claims (10)
1. a touch-control display panel, it is characterised in that including:
First substrate；
Touch-control structure layer, is located on the side of described first substrate, comprises and press detecting electrode；And
Pressure sensitive layer, is positioned at described first substrate and presses on the side that detecting electrode deviates from mutually with described, described pressure sensitive
Layer comprises: transparency conducting layer and the elastic layer between described transparency conducting layer and described first substrate,
Wherein, described in press between detecting electrode and described transparency conducting layer formation pressure-induced capacitance structure, and, described in press inspection
Survey electrode to be multiplexed with from holding electrode.
2. touch-control display panel as claimed in claim 1, it is characterised in that:
Described pressure sensitive layer also comprises: be folded between described transparency conducting layer and described first substrate for supporting described
The supporting frame of one substrate,
Described elastic layer is filled in described supporting frame.
3. touch-control display panel as claimed in claim 2, it is characterised in that also include:
Backlight module, is positioned at described pressure sensitive layer and deviates from the side of described first substrate, be used for providing light source；And
Backlight supporting frame, is located between described backlight module and described transparency conducting layer, is used for supporting described transparency conducting layer.
4. touch-control display panel as claimed in claim 1, it is characterised in that:
Described pressure sensitive layer also comprises signal pad,
Described signal pad electrically connects with described transparency conducting layer.
5. touch-control display panel as claimed in claim 4, it is characterised in that:
Described signal pad is connected by conductive silver glue with described transparency conducting layer.
6. touch-control display panel as claimed in claim 4, it is characterised in that also include:
Driver element, is connected with described signal pad, for providing control signal to described transparency conducting layer.
7. touch-control display panel as claimed in claim 6, it is characterised in that:
During described driver element will be divided into display during a frame scan, during touch-control scanning and during pressing scanning, described
Alternate during described display during touch-control scanning,
During described pressing scanning, described touch-control structure layer carries out touch-control sensing,
Wherein, described pressing scanning during in the clear area, end of every frame, and, described pressing scanning during in, described control
Signal processed controls described transparency conducting layer ground connection, thus carries out pressure detecting.
8. touch-control display panel as claimed in claim 1, it is characterised in that:
Described transparency conducting layer is indium oxide tin film layer.
9. touch-control display panel as claimed in claim 2, it is characterised in that:
Described transparency conducting layer and described supporting frame are integrally formed.
10. touch-control display panel as claimed in claim 1, it is characterised in that also include:
Second substrate, the most described first substrate is arranged,
Wherein, described first substrate is array base palte,
Described second substrate is color membrane substrates, and is additionally provided with on described second substrate and mixes the conducting film that antimony Indium sesquioxide. is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536143.9U CN205721724U (en) | 2016-06-03 | 2016-06-03 | Touch-control display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536143.9U CN205721724U (en) | 2016-06-03 | 2016-06-03 | Touch-control display panel |
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| Publication Number | Publication Date |
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| CN205721724U true CN205721724U (en) | 2016-11-23 |
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| CN201620536143.9U Active CN205721724U (en) | 2016-06-03 | 2016-06-03 | Touch-control display panel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231825A (en) * | 2016-12-13 | 2018-06-29 | 华为技术有限公司 | A kind of display screen and mobile terminal |
| CN109426391A (en) * | 2017-09-05 | 2019-03-05 | 乐金显示有限公司 | Touch sensor, display device and the method for driving touch sensor |
| CN111306341A (en) * | 2020-03-10 | 2020-06-19 | 别照辰 | Thing networking tap |
| CN113485569A (en) * | 2021-06-07 | 2021-10-08 | 力领科技股份有限公司 | Driving method of pressure touch control and related touch control display system thereof |
-
2016
- 2016-06-03 CN CN201620536143.9U patent/CN205721724U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231825A (en) * | 2016-12-13 | 2018-06-29 | 华为技术有限公司 | A kind of display screen and mobile terminal |
| CN108231825B (en) * | 2016-12-13 | 2020-10-09 | 华为技术有限公司 | Display screen and mobile terminal |
| CN109426391A (en) * | 2017-09-05 | 2019-03-05 | 乐金显示有限公司 | Touch sensor, display device and the method for driving touch sensor |
| CN111306341A (en) * | 2020-03-10 | 2020-06-19 | 别照辰 | Thing networking tap |
| CN113485569A (en) * | 2021-06-07 | 2021-10-08 | 力领科技股份有限公司 | Driving method of pressure touch control and related touch control display system thereof |
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