CN105892757B - A kind of In-cell touch panel and display device - Google Patents
A kind of In-cell touch panel and display device Download PDFInfo
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- CN105892757B CN105892757B CN201610475290.4A CN201610475290A CN105892757B CN 105892757 B CN105892757 B CN 105892757B CN 201610475290 A CN201610475290 A CN 201610475290A CN 105892757 B CN105892757 B CN 105892757B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
Abstract
The invention discloses a kind of In-cell touch panel and display devices, when the In-cell touch panel is pressed, since piezoelectricity inductive layer has piezoelectric effect, when deformation occurs for the effect of compression power, such as it is bent, positive electrode position can be made to generate positive charge, negative electrical charge is generated in negative electrode position, and deformation is bigger, the positive charge and negative electrical charge of generation are more, so as to realize the pressure sensitivity touch function of In-cell touch panel by detecting by electric current that the positive charge of positive electrode and the negative electrical charge of negative electrode are formed.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of In-cell touch panel and display device.
Background technique
Pressure sensitive technology refers to that the technology that can implement detection to external force, this technology are just used in work before for a long time
Control, the fields such as medical treatment.Currently, pressure sensitive technology is applied to display field to realize display device by suitable scheme
The detection accuracy of display device can be improved in pressure sensitivity touch function, and the display device with pressure sensitivity touch function can make
Client obtains better man-machine interaction experience, to improve the competitiveness of product.Therefore, display device how to be made to realize pressure sensitivity touching
Control the problem of function is those skilled in the art's urgent need to resolve.
Summary of the invention
A kind of In-cell touch panel and display device provided in an embodiment of the present invention, to realize with pressure sensitivity touch function
Touch screen.
Therefore, the embodiment of the invention provides a kind of In-cell touch panels, comprising: the array substrate and opposite direction being oppositely arranged
Substrate, further includes: multiple mutually independent pressure sensitivity touch control units between the array substrate and the opposite substrate；Wherein,
The pressure sensitivity touch control unit includes: piezoelectricity inductive layer, connect with the piezoelectricity inductive layer and spaced positive electricity
Pole and negative electrode；The pressure sensitivity touch control unit be used for the piezoelectricity inductive layer compression power effect deformation occurs when, make it is described just
Charge is generated on electrode and the negative electrode, and deformation is bigger, the charge of generation is more.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, the material of the piezoelectricity inductive layer is
Piezoelectric fibre composite material；
The positive electrode include: be set to the voltage inductance answer level to the opposite substrate side at least one first
Positive sub-electrode is set to the piezoelectricity inductive layer away from the opposite substrate side and is symmetrical arranged with the described first positive sub-electrode
The second positive sub-electrode；
The negative electrode includes: to be set to the voltage inductance to answer level to the opposite substrate side and with each described first
The positive negative sub-electrode of sub-electrode one-to-one first, be set to the piezoelectricity inductive layer away from the opposite substrate side and with institute
State the first negative sub-electrode of negative sub-electrode symmetrically arranged second；
The first positive sub-electrode and the corresponding first negative sub-electrode form interdigital electrode, second positron
Electrode and the corresponding second negative sub-electrode form interdigital electrode.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, the first positive sub-electrode and described
First negative sub-electrode same layer same material；And/or
The second positive sub-electrode and the second negative sub-electrode same layer same material.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, the material of the first positive sub-electrode
For transparent conductive material；And/or the material of the second positive sub-electrode is transparent conductive material.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, further includes: be located at the array substrate
Black matrix layer between the opposite substrate；
The black matrix layer covers each pressure sensitivity touch control unit in the opposite base in the orthographic projection of the opposite substrate
The orthographic projection of plate.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, further includes: with each pressure sensitivity touch-control
Negative electrode in the positive electricity polar conductor that positive electrode in unit is correspondingly connected with, with each pressure sensitivity touch control unit is correspondingly connected with negative
Electrode cable, and the pressure sensitivity detection chip being connect with each positive electricity polar conductor and each negative electricity polar conductor；
The pressure sensitivity detection chip is used for when the pressure sensitivity touch control unit is pressed, and is touched by detection and each pressure sensitivity
The variation of the electric current of the corresponding positive electricity polar conductor of control unit and negative electricity polar conductor is to judge position of touch, and passes through detection and institute
The size for stating the electric current of the corresponding positive electricity polar conductor of position of touch and negative electricity polar conductor is big with the pressure for judging the position of touch
It is small.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, the material of each positive electricity polar conductor
For transparent conductive material；And/or the material of each negative electricity polar conductor is transparent conductive material.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, further includes: be located at the array substrate
With the liquid crystal layer between the opposite substrate；
Each pressure sensitivity touch control unit is between the opposite substrate and the liquid crystal layer.
Preferably, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, further includes: be located at the opposite substrate
Multiple pixel units between the array substrate,
Each pressure sensitivity touch control unit is covered in the orthographic projection area defined of the opposite substrate described at least one
Orthographic projection of the pixel unit in the opposite substrate.
Correspondingly, the embodiment of the invention also provides a kind of display devices, including above-mentioned provided in an embodiment of the present invention
A kind of In-cell touch panel.
In-cell touch panel and display device provided in an embodiment of the present invention, when the In-cell touch panel is pressed, by
There is piezoelectric effect in piezoelectricity inductive layer, when deformation occurs for the effect of compression power, such as be bent, positive electrode position can be made
Place generates positive charge, generates negative electrical charge in negative electrode position, and deformation is bigger, the positive charge and negative electrical charge of generation are got over
It is more, so as to realize embedded touch by the electric current that the positive charge of positive electrode and the negative electrical charge of negative electrode are formed by detection
The pressure sensitivity touch function of screen.
Detailed description of the invention
Fig. 1 a is one of the overlooking structure diagram of In-cell touch panel provided in an embodiment of the present invention；
Fig. 1 b is the two of the overlooking structure diagram of In-cell touch panel provided in an embodiment of the present invention；
Fig. 2 a is the schematic diagram of the section structure of the In-cell touch panel shown in Fig. 1 a along the direction A-A '；
Fig. 2 b is the schematic diagram of the section structure of the In-cell touch panel shown in Fig. 1 a along the direction B-B '；
Fig. 3 is the structural schematic diagram of piezoelectric fibre composite material and interdigital electrode.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The In-cell touch panel of offer and the specific embodiment of display device are described in detail.
Each layer film thickness and shape do not reflect the actual proportions of In-cell touch panel in attached drawing, and purpose is schematically illustrate
The content of present invention.
In-cell touch panel provided in an embodiment of the present invention, as illustrated in figs. 1A and ib, comprising: the array base being oppositely arranged
Plate and opposite substrate, and further include: multiple mutually independent pressure sensitivity touch control units between array substrate and opposite substrate
300；Wherein,
Pressure sensitivity touch control unit 300 includes: piezoelectricity inductive layer 310, connect with piezoelectricity inductive layer 310 and spaced positive electricity
Pole 320 and negative electrode 330；Pressure sensitivity touch control unit 300 is used to make just when deformation occurs for the effect of 310 compression power of piezoelectricity inductive layer
Charge is generated on electrode 320 and negative electrode 330, and deformation is bigger, the charge of generation is more.
In-cell touch panel provided in an embodiment of the present invention, when the In-cell touch panel is pressed, since voltage inductance is answered
Layer has piezoelectric effect, when deformation occurs for the effect of compression power, such as is bent, positive electrode position can be made to generate positive electricity
Lotus generates negative electrical charge in negative electrode position, and deformation is bigger, and the positive charge and negative electrical charge of generation are more, so as to
To realize the pressure sensitivity of In-cell touch panel by detecting by electric current that the positive charge of positive electrode and the negative electrical charge of negative electrode are formed
Touch function.
The touch-control density of general In-cell touch panel is usually in grade, then the touch-control density of each pressure sensitivity touch control unit is in milli
Meter level, the display density of the pixel unit of display screen usually in the micron-scale, therefore a pressure sensitivity touch control unit can correspond to it is multiple
Pixel unit, therefore specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as scheme
It further include multiple pixel units 400 between opposite substrate and array substrate shown in 1a and Fig. 1 b,
Each pressure sensitivity touch control unit 300 covers at least one pixel unit in the orthographic projection area defined of opposite substrate
400 opposite substrate orthographic projection, wherein Fig. 1 a is surrounded with each pressure sensitivity touch control unit 300 in the orthographic projection of opposite substrate
Two pixel units 400 of region overlay are for the orthographic projection of opposite substrate, and Fig. 1 b is with each pressure sensitivity touch control unit 300 in opposite base
The orthographic projection area defined of plate covers five pixel units 400 for the orthographic projection of opposite substrate.In practical applications,
The density of each pressure sensitivity touch control unit and occupied area can be selected required to guarantee according to actually required pressure sensitivity touch-control density
Touch accuracy is not limited thereto.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, each pressure sensitivity touch-control
Unit can be located at opposite substrate towards array substrate side；Alternatively, each pressure sensitivity touch control unit can also be located at array substrate face
To opposite substrate side, it is not limited thereto.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as Fig. 1 a, figure
Shown in 2a and Fig. 2 b, wherein Fig. 2 a is the schematic diagram of the section structure of the In-cell touch panel along the direction A-A ' shown in Fig. 1 a, Fig. 2 b
It is In-cell touch panel shown in Fig. 1 a along the schematic diagram of the section structure in the direction B-B ', the material of piezoelectricity inductive layer 310 is piezoelectricity
Fibrous composite；
Positive electrode 320 include: be set to piezoelectricity inductive layer 310 towards 200 side of opposite substrate at least one first just
Sub-electrode 321 is set to piezoelectricity inductive layer 310 away from 200 side of opposite substrate and symmetrically arranged with the first positive sub-electrode 321
Second positive sub-electrode 322；
Negative electrode 330 include: be set to piezoelectricity inductive layer 310 towards 200 side of opposite substrate and with each first positron electricity
The negative sub-electrode 331 in pole 321 corresponding first, be set to piezoelectricity inductive layer 310 away from 200 side of opposite substrate and with the first negative son
The negative sub-electrode 332 of electrode 331 symmetrically arranged second；
First positive sub-electrode 321 and corresponding first negative sub-electrode 331 form interdigital electrode 340, the second positron electricity
Pole 322 and corresponding second negative sub-electrode 332 form interdigital electrode 340.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, when a pressure sensitivity
When positive electrode in touch control unit includes multiple first positive sub-electrodes, i.e., in a pressure sensitivity touch control unit, piezoelectricity inductive layer
The same side is provided with multiple interdigital electrodes, and as shown in Figure 1a, each interdigital electrode can be located at adjacent column pixel list
Between member or between adjacent rows pixel unit.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, when a pressure sensitivity
When positive electrode in touch control unit includes a first positive sub-electrode, i.e., in a pressure sensitivity touch control unit, piezoelectricity inductive layer
The same side is provided with an interdigital electrode, as shown in Figure 1 b, interdigital electrode between adjacent rows pixel unit with
And between adjacent column pixel unit.
In the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, as shown in Fig. 2 a to Fig. 3,
Piezoelectric fibre composite material includes piezoelectric fabric 311 arranged in parallel and the polymer 312 for being coated on 311 outside of piezoelectric fabric.
Wherein, piezoelectric fabric 311 be by advance it is polarized, by the extending direction perpendicular to piezoelectric fabric 311 it is alternately arranged it is each just
Electrode finger portion 341 and each negative electrode refer to that the interdigital electrode 340 that portion 342 forms acts not only as the work of piezoelectric fabric 311
Make electrode, be also used as the polarizing electrode of piezoelectric fabric 311, and in polarization process, adds usually in silicone oil
The voltage of 4000V/mm polarizes to piezoelectric fabric 311, makes the polarization direction p of piezoelectric fabric 311 along its axis direction.Polymerization
Object 312 has the function of transmitting stress, fixation and protection piezoelectric fabric.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, same friendship is formed
Each positive electrode of interdigitated electrodes refers to that portion and each negative electrode refer to that portion equidistantly arranges.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as Fig. 2 a institute
Show, the first positive sub-electrode 321 and the first negative 331 same layer same material of sub-electrode.The can be formed by patterning processes in this way
The figure of one positive sub-electrode 321 and the first negative sub-electrode 331 can simplify preparation process flow, save production cost, improve life
Produce efficiency.
Alternatively, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, as shown in Figure 2 a,
Second positive sub-electrode 322 and the second negative 332 same layer same material of sub-electrode.In this way second can be being formed just by a patterning processes
The figure of sub-electrode 322 and the second negative sub-electrode 332 can simplify preparation process flow, save production cost, improve production effect
Rate.
Preferably, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as Fig. 2 a institute
Show, the first positive sub-electrode 321 and the first negative 331 same layer same material of sub-electrode, and the second positive sub-electrode 322 and the second negative son electricity
332 same layer same material of pole.In this way the first positive sub-electrode 321 and the first negative sub-electrode 331 can be formed by a patterning processes
Figure, and form by patterning processes the figure of the second positive sub-electrode 322 and the second negative sub-electrode 332, i.e., only lead to
After patterning processes twice can be formed the figure of the sub-electrode positioned at piezoelectricity inductive layer 310 towards 200 side of opposite substrate with
And positioned at piezoelectricity inductive layer 310 away from the figure of the sub-electrode of 200 side of opposite substrate, so as to simplify preparation process stream
Journey saves production cost, improves production efficiency.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, the first positron electricity
The material of pole can be transparent conductive material, for example, it may be tin indium oxide (ITO) material, indium zinc oxide (IZO) material, carbon
Nanotube or graphene etc..The material of first positive sub-electrode may be metal material, be not limited thereto.
Alternatively, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, the second positive sub-electrode
Material can be transparent conductive material, for example, it may be tin indium oxide (ITO) material, indium zinc oxide (IZO) material, carbon are received
Mitron or graphene etc..Certainly, the material of the second positive sub-electrode may be metal material, be not limited thereto.
Preferably, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, the first positron electricity
The material of pole is transparent conductive material, and the material of the second positive sub-electrode is transparent conductive material, for example, it may be indium oxide
Tin (ITO) material, indium zinc oxide (IZO) material, carbon nanotube or graphene etc..It can make the material of the first positive sub-electrode in this way
The material of material, the material of the second positive sub-electrode, the material of the first negative sub-electrode and the second negative sub-electrode is unified, so as to so that
The technique for preparing the first positive sub-electrode, the second positive sub-electrode, the first negative sub-electrode and the second negative sub-electrode is unified.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as Fig. 2 a and figure
Shown in 2b, further includes: the black matrix layer 500 between array substrate 100 and opposite substrate 200；
Black matrix layer 500 covers each pressure sensitivity touch control unit 300 in opposite substrate 200 in the orthographic projection of opposite substrate 200
Orthographic projection.Pressure sensitivity touch control unit can be made to be not take up the open area of pixel unit in this way, to not influence opening for pixel unit
Mouth rate.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as Fig. 1 a and figure
Shown in 1b, further includes: the positive electricity polar conductor 350 being correspondingly connected with the positive electrode in each pressure sensitivity touch control unit 300 is touched with each pressure sensitivity
The negative electricity polar conductor 360 that negative electrode in control unit 300 is correspondingly connected with, and led with each positive electricity polar conductor 350 and each negative electrode
The pressure sensitivity detection chip (not shown) that line 360 connects；
Pressure sensitivity detection chip is used for when pressure sensitivity touch control unit 300 is pressed, and passes through detection and each pressure sensitivity touch control unit 300
The variation of the electric current of corresponding positive electricity polar conductor 350 and negative electricity polar conductor 360 is to judge position of touch, and passes through detection and touching
The size of the electric current of the corresponding positive electricity polar conductor 350 in position and negative electricity polar conductor 360 is controlled to judge the pressure size of position of touch.
It in this way can be by the electric current of each positive electricity polar conductor 350 of detection and each negative electricity polar conductor 360 by increasing pressure sensitivity detection chip
Variation judges position of touch, and by detecting corresponding with position of touch positive electricity polar conductor 350 and negative electricity polar conductor 360
The size of electric current is to judge the pressure size of position of touch.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as Fig. 1 a and figure
Shown in 1b, black matrix 500 covers each positive electricity polar conductor 350 and each negative electricity polar conductor 360 in opposite direction in the orthographic projection of opposite substrate
The orthographic projection of substrate.Each positive electricity polar conductor 350 and each negative electricity polar conductor 360 can be made to be not take up the open region of pixel unit in this way
Domain, to not influence the aperture opening ratio of pixel unit.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, each positive electrode is led
The material of line is transparent conductive material.For example, it may be tin indium oxide (ITO) material, indium zinc oxide (IZO) material, carbon nanometer
Pipe or graphene etc..Certainly, the material of each positive electricity polar conductor may be metal material, be not limited thereto.
Alternatively, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, each negative electricity polar conductor
Material be transparent conductive material.For example, it may be tin indium oxide (ITO) material, indium zinc oxide (IZO) material, carbon nanotube
Or graphene etc..Certainly, the material of each negative electricity polar conductor may be metal material, be not limited thereto.
Preferably, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, each positive electrode is led
The material of line is transparent conductive material, and the material of each negative electricity polar conductor is transparent conductive material.For example, it may be indium oxide
Tin (ITO) material, indium zinc oxide (IZO) material, carbon nanotube or graphene etc..Certainly, the material of the second positive sub-electrode can also
Think metal material, is not limited thereto.It can make the material of each positive electricity polar conductor and the material system of each negative electricity polar conductor in this way
One.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, such as Fig. 2 a and figure
Shown in 2b, further includes: the liquid crystal layer 600 between array substrate 100 and opposite substrate 200；
Each pressure sensitivity touch control unit 300 is between opposite substrate 200 and liquid crystal layer 600.In this way when In-cell touch panel is
When liquid crystal display touch screen, pressure sensitivity touch control unit can be made to be more prone to produce deformation.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, when embedded touching
Screen is touched when including the liquid crystal layer 600 positioned at array substrate 100 and opposite substrate 200 between, further includes being located at respectively as shown in Figure 2 a
Multiple spacer materials 700 between pressure sensitivity touch control unit 300 and array substrate 100.
In the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, each spacer material can be located at
Opposite substrate is towards liquid crystal layer side；Alternatively, each spacer material can also be located at array substrate towards liquid crystal layer side, do not make herein
It limits.
Further, when each spacer material is located at each pressure sensitivity touch control unit towards liquid crystal layer side, in order to avoid preparing
It causes the apparent height of different pressure sensitivity touch control units inconsistent in the process, and causes to generate segment difference in the same plane, specific
When implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, as shown in Figure 2 a and 2 b, further includes: be located at each
Planarization layer 800 between pressure sensitivity touch control unit 300 (only showing in fig. 2 a) and each spacer material 700.
Specifically, in the specific implementation, in above-mentioned In-cell touch panel provided in an embodiment of the present invention, further includes: position
The color light resistance layer of multiple color between array substrate and opposite substrate.
Illustrate preparation method for In-cell touch panel shown in Fig. 2 a below.It is located at below with pressure sensitivity touch control unit
Opposite substrate does not limit the present invention towards being illustrated for array substrate side.
Specifically, in the specific implementation, being formed has the production method of the opposite substrate of pressure sensitivity touch control unit specifically can be with
The following steps are included:
(1) figure of black matrix layer is formed on underlay substrate.
(2) at least one first positive sub-electrode is formed in black matrix layer and in region corresponding with each pressure sensitivity touch control unit
Figure and formed with the first positive sub-electrode interdigital electrode the first negative sub-electrode figure.
(3) figure of polarized piezoelectric fibre composite material in advance is formed on the first positive sub-electrode and the first negative sub-electrode
Shape.
(4) figure with each first positive sub-electrode of positive sub-electrode symmetrically arranged second is formed on piezoelectric fibre composite material
Shape and figure with each first negative sub-electrode of negative sub-electrode symmetrically arranged second.
(5) figure of the color light resistance layer of multiple color is respectively formed on underlay substrate.
(6) planarization layer is formed on the underlay substrate for the color light resistance layer for being formed with multiple color.
(7) figure of spacer material is formed on the underlay substrate for be formed with planarization layer.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention
Any of the above-described kind of In-cell touch panel supplied.The principle that the display device solves the problems, such as is similar to aforementioned In-cell touch panel, because
The implementation of this display device may refer to the implementation of aforementioned In-cell touch panel, and repeating place, details are not described herein.
In the specific implementation, display device provided in an embodiment of the present invention can be with are as follows: mobile phone, tablet computer, television set, aobvious
Show any products or components having a display function such as device, laptop, Digital Frame, navigator.For the display device
Other essential component parts be it will be apparent to an ordinarily skilled person in the art that having, this will not be repeated here,
Also it should not be taken as limiting the invention.The implementation of the display device may refer to the embodiment of above-mentioned In-cell touch panel, weight
Multiple place repeats no more.
In-cell touch panel and display device provided in an embodiment of the present invention, when the In-cell touch panel is pressed, by
There is piezoelectric effect in piezoelectricity inductive layer, when deformation occurs for the effect of compression power, such as be bent, positive electrode position can be made
Place generates positive charge, generates negative electrical charge in negative electrode position, and deformation is bigger, the positive charge and negative electrical charge of generation are got over
It is more, so as to realize embedded touch by the electric current that the positive charge of positive electrode and the negative electrical charge of negative electrode are formed by detection
The pressure sensitivity touch function of screen.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (9)
1. a kind of In-cell touch panel, comprising: the array substrate and opposite substrate being oppositely arranged, which is characterized in that further include: institute
It states multiple mutually independent pressure sensitivity touch control units between array substrate and the opposite substrate, be located at the array substrate and institute
State the black matrix layer between opposite substrate；Wherein,
The pressure sensitivity touch control unit include: piezoelectricity inductive layer, connect with the piezoelectricity inductive layer and spaced positive electrode and
Negative electrode；The pressure sensitivity touch control unit is used to make the positive electrode when deformation occurs for piezoelectricity inductive layer compression power effect
With charge is generated on the negative electrode, and deformation is bigger, and the charge of generation is more；
The black matrix layer covers each pressure sensitivity touch control unit in the opposite substrate in the orthographic projection of the opposite substrate
Orthographic projection.
2. In-cell touch panel as described in claim 1, which is characterized in that the material of the piezoelectricity inductive layer is piezoelectric fabric
Composite material；
The positive electrode includes: to be set to the voltage inductance to answer at least one first positron of level to the opposite substrate side
Electrode, be set to the piezoelectricity inductive layer away from the opposite substrate side and with the described first positive sub-electrode symmetrically arranged the
Two positive sub-electrodes；
The negative electrode include: be set to the voltage inductance answer level to the opposite substrate side and with each first positron
The negative sub-electrode of electrode one-to-one first is set to the piezoelectricity inductive layer away from the opposite substrate side and with described the
The one negative sub-electrode of negative sub-electrode symmetrically arranged second；
The first positive sub-electrode and the corresponding first negative sub-electrode form interdigital electrode, the second positive sub-electrode
Interdigital electrode is formed with the corresponding second negative sub-electrode.
3. In-cell touch panel as claimed in claim 2, which is characterized in that the first positive sub-electrode and the first negative son
Electrode same layer same material；And/or
The second positive sub-electrode and the second negative sub-electrode same layer same material.
4. In-cell touch panel as claimed in claim 3, which is characterized in that the material of the first positive sub-electrode is transparent leads
Electric material；And/or the material of the second positive sub-electrode is transparent conductive material.
5. In-cell touch panel according to any one of claims 1-4, which is characterized in that further include: it is touched with each pressure sensitivity
The positive electricity polar conductor that positive electrode in control unit is correspondingly connected with, is correspondingly connected with the negative electrode in each pressure sensitivity touch control unit
Negative electricity polar conductor, and the pressure sensitivity detection chip being connect with each positive electricity polar conductor and each negative electricity polar conductor；
The pressure sensitivity detection chip is used for when the pressure sensitivity touch control unit is pressed, and passes through detection and each pressure sensitivity touch-control list
The variation of the electric current of the corresponding positive electricity polar conductor of member and negative electricity polar conductor is to judge position of touch, and passes through detection and the touching
The size of the electric current of the corresponding positive electricity polar conductor in position and negative electricity polar conductor is controlled to judge the pressure size of the position of touch.
6. In-cell touch panel as claimed in claim 5, which is characterized in that the material of each positive electricity polar conductor is transparent leads
Electric material；And/or the material of each negative electricity polar conductor is transparent conductive material.
7. In-cell touch panel according to any one of claims 1-4, which is characterized in that further include: it is located at the array base
Liquid crystal layer between plate and the opposite substrate；
Each pressure sensitivity touch control unit is between the opposite substrate and the liquid crystal layer.
8. In-cell touch panel according to any one of claims 1-4, which is characterized in that further include: it is located at the opposite base
Multiple pixel units between plate and the array substrate,
Each pressure sensitivity touch control unit covers at least one described pixel in the orthographic projection area defined of the opposite substrate
Orthographic projection of the unit in the opposite substrate.
9. a kind of display device, which is characterized in that including such as described in any item In-cell touch panels of claim 1-8.
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|---|---|---|---|---|
| CN106445264B (en) * | 2016-08-31 | 2019-10-15 | 维沃移动通信有限公司 | A kind of calibration method and mobile terminal of touch control operation |
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