CN206039468U - Forced induction touch screen - Google Patents
Forced induction touch screen Download PDFInfo
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- CN206039468U CN206039468U CN201620686223.2U CN201620686223U CN206039468U CN 206039468 U CN206039468 U CN 206039468U CN 201620686223 U CN201620686223 U CN 201620686223U CN 206039468 U CN206039468 U CN 206039468U
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- pressure sensitive
- layer
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Abstract
The utility model provides a forced induction touch screen, this forced induction touch screen includes: the protection apron, a display uni, display element set up in the below of protection apron, and include display module assembly and backlight unit, backlight unit includes optics diaphragm stromatolite and metal components, the forced induction layer, the forced induction layer includes driving electrode and response electrode, driving electrode and response electrode just interlock each other with the layer and set up, and ground plane, the ground plane with forced induction layer electric connection forms forced induction electric capacity, just the ground plane does metal components. After exerting pressure to the protection apron through finger, touch screen pen or other object etc. Can cause the deformation on forced induction layer to make the forced induction capacitance value between forced induction layer and the ground plane change, through the detection to forced induction electric capacity, information such as the size that can confirm to exert pressure, position.
Description
Technical field
This utility model is related to touch-control display field, in particular it relates to pressure sensitive touch screen.
Background technology
Touch screen is because having the advantages that ease for operation, intuitive and motility, it has also become PMC equipment and comprehensive
Close primary human's interactive meanses of information terminal such as panel computer and smart mobile phone, super notebook computer etc..Touch screen according to
Different touch-control principles can be divided into electric resistance touch screen, capacitance touch screen, infrared touch panel and surface acoustic wave (SAW) touch screen etc. four
Plant main Types.Wherein capacitance touch screen has a function of multi-point touch, the response time is fast, long service life and light transmission rate compared with
Height, user experience are superior, while as the progressively maturation of technique, yields are significantly improved, capacitance plate price is increasingly
Reduce, become the major technique that the interaction of small-medium size information terminal touch-control is adopted at present.
But capacitance touch screen only perceives the touch location of screen body place plane (X, Y-axis two-dimensional space), it is difficult to support to hang down
The straight touch parameter in screen body plane (Z axis) is perceived.
Thus, current touch screen correlation technique still has much room for improvement.
Utility model content
This utility model is intended at least to solve to a certain extent one of technical problem in correlation technique.For this purpose, this reality
It is to propose a kind of three-dimensional multipoint mode pressure sensitive touch screen with a new purpose.
In one side of the present utility model, this utility model provides a kind of pressure sensitive touch screen.According to this practicality
New embodiment, the pressure sensitive touch screen include：Cover sheet；Display unit, the display unit are arranged at the guarantor
The lower section of protecting cover plate, and including display module and backlight module, the backlight module includes blooming piece lamination and hardware,
The hardware is to support the display module and the blooming piece lamination；Pressure sensitive layer, the pressure sensitive layer
Including drive electrode and induction electrode, the drive electrode and induction electrode are with layer and setting interlaced with each other；And ground plane, institute
State ground plane and be electrically connected with and formed pressure sensitive electric capacity with the pressure sensitive layer, and the ground plane is the metal structure
Part.The pressure sensitive touch screen can not only sense the touch location of screen body place plane, while can sense perpendicular to screen body
The size of the touch pressure of plane, and sensitivity is higher.
Optionally, there is compressible gap between the pressure sensitive layer and the ground plane.
Optionally, the compressible gap be located between the cover sheet and the display unit, the display unit
Between the backlight module or in the backlight module.
Optionally, resilient material is filled in the compressible gap.
Optionally, the pressure sensitive layer be arranged between the cover sheet and display unit, in the display unit
Below portion or the display unit.
Optionally, the induction electrode is in pectination and mutually chimeric with the drive electrode.
Optionally, an induction electrode is chimeric with drive electrode, an induction electrode with it is multiple
The drive electrode is fitted together to, and multiple induction electrodes are chimeric with a drive electrode, or multiple induction electrodes
It is chimeric with a drive electrode.
Optionally, the pressure sensitive touch screen is further included：Screen layer, the screen layer are arranged at the pressure sensitive
Side of the layer away from the hardware.
Optionally, pressure sensitive layer further includes substrate, and the substrate includes the first surface being oppositely arranged and second
Surface, the induction electrode are located at the first surface with the drive electrode, and the screen layer is located at the second surface.
Optionally, the thickness of the substrate is at 10-150 μm.
Optionally, the pressure sensitive layer and screen layer are independently of one another by selected from tin indium oxide, metal grill and nanometer
At least one formation in filamentary silver.
Description of the drawings
Figure 1A-Fig. 1 C show the structural representation of the pressure sensitive touch screen according to this utility model embodiment.
Fig. 2A-Fig. 2 D show the structural representation of the pressure sensitive layer according to this utility model embodiment.
Fig. 3 A- Fig. 3 B show the structural representation of the pressure sensitive layer according to this utility model embodiment.
Fig. 4 shows the operation principle schematic diagram of the pressure sensitive layer according to this utility model embodiment and ground plane.
Fig. 5 shows the pressure sensitive touch-control screen structure schematic diagram according to this utility model embodiment.
Fig. 6 shows the structural representation of the pressure sensitive layer, substrate and screen layer according to this utility model embodiment.
Specific embodiment
Embodiment of the present utility model is described below in detail.The embodiments described below is exemplary, is only used for explaining
This utility model, and it is not intended that to restriction of the present utility model.Unreceipted particular technique or condition in embodiment, according to
Technology or condition described by document in the art are carried out according to product description.Agents useful for same or the unreceipted life of instrument
Produce manufacturer person, be can by city available from conventional products.
In one side of the present utility model, this utility model provides a kind of pressure sensitive touch screen.According to this practicality
New embodiment, reference picture 1A- Fig. 1 C, the pressure sensitive touch screen include：Cover sheet 10, pressure sensitive layer 20, ground connection
Layer 30, and display unit 40, wherein, pressure sensitive layer 20 is arranged on below cover sheet 10, and including drive electrode and sense
Answer electrode, the drive electrode and induction electrode with layer and setting interlaced with each other, ground plane 30 is electrically connected with pressure sensitive layer 20
Pressure sensitive electric capacity is connect and is formed, display unit 40 includes display module 41 and backlight module 42, and backlight module 42 includes optics
Diaphragm lamination 421 and hardware 422, and hardware 422 constitutes above-mentioned ground plane 30.In the pressure sensitive touch screen,
By finger, screen touch pen or other etc. to cover sheet 10 apply pressure after, the deformation of pressure sensitive layer 20 can be caused so that
Obtain the pressure sensitive capacitance between pressure sensitive layer 20 and ground plane 30 and between drive electrode and induction electrode to occur to become
Change, by the detection to pressure sensitive electric capacity, it may be determined that the pressure information of applying, for example, apply stressed size, position etc..
According to embodiment of the present utility model, the concrete material of cover sheet 10 is not particularly limited, and can be this area
Conventional cover sheet, such as including but not limited to glass, sapphire, ceramics etc..
According to embodiment of the present utility model, the particular location of pressure sensitive layer 20 is not particularly limited.Some embodiments
In, with reference to Figure 1A, pressure sensitive layer 20 is arranged between cover sheet 10 and display unit 40.In other embodiments, reference
Figure 1B, pressure sensitive layer 20 are arranged at below display unit 40.In still other embodiments, reference picture 1C, pressure sensitive layer 20 set
It is placed in inside display unit 40.It should be noted that Fig. 1 C are only arranged at liquid crystal display 41 and backlight with pressure sensitive layer 20
Illustrate as a example by between module 42, it will be appreciated by a person skilled in the art that in further embodiments, pressure sensitive layer 20
Can also be arranged inside liquid crystal display 41 or inside the blooming piece lamination 421 of backlight module 42, blooming piece lamination
The position such as between 421 and hardware 422.In some embodiments, in order to simplify processing procedure, can set pressure sensitive layer 20 integrated
It is placed in the lower surface of cover sheet 10, the upper surface of display unit 40, the inside of display unit 40, the following table of display unit 40
Face or the upper surface of ground plane 30.Thus, step is simple, it is easy to operate.In other embodiments, in order to simplify step, or
So that touch screen is lightening, can be using original part of pressure sensitive touch screen as pressure sensitive layer 20, without volume
Outer increase pressure sensitive layer 20, it is for instance possible to use the common electrode layer of display module, screening conductive layer etc. in display unit 40
As pressure sensitive layer 20.
According to embodiment of the present utility model, the concrete material of pressure sensitive layer 20 is not particularly limited, as long as can be with
Pressure sensitive electric capacity is effectively formed between ground plane 30.In some embodiments of the present utility model, pressure sensitive layer can
With by tin indium oxide (ITO), metal grill (metal mesh), development conducting film, Graphene metal level (as Cu, Ag plate
Layer, or metal organic ink, such as silver paste, copper slurry etc.) formed, can be being formed by flexible circuit board (FPCB).According to this
The embodiment of utility model, the thickness of pressure sensitive layer 20 can be between 0.01-0.03 millimeters.Thus, can either ensure compared with
Good inductive effects, also will not be blocked up, and causes the thickness increase or the waste of material of pressure sensitive touch screen.In addition, it is necessary to
Illustrate, when pressure sensitive layer 20 is arranged at 40 top of display unit, pressure sensitive layer 20 need to be formed by transparent material, with
Ensure the display effect of pressure sensitive touch screen, and when pressure sensitive layer 20 is arranged at 40 lower section of display unit, to feeling of stress
Answer the transmitance of layer 20 to be not particularly limited, can be transparent, translucent, it is also possible to opaque.
According to embodiment of the present utility model, the concrete generation type of pressure sensitive layer 20 is also not particularly limited, for example,
In some embodiments of the present utility model, directly conductive layer can be plated in relevant position, then be formed by modes such as etchings
Pressure sensitive layer 20 with predetermined electrode pattern.In other embodiments of the present utility model, silk screen printing can be passed through
Pressure sensitive layer 20 with predetermined electrode pattern is formed directly.In other embodiment of the present utility model, pressure sensitive
Layer 20 can be formed on flexible parent metal, and wherein, flexible parent metal can be the transparent organic film materials such as PET, PC, or
Nontransparent flexible material, such as flexible printed circuit board etc., pressure sensitive layer 20 can be formed on the surface of flexible parent metal,
Can be accommodated in the groove formed on flexible parent metal.
It will be understood by those skilled in the art that the concrete shape of drive electrode and induction electrode in pressure sensitive layer 20 is not
It is particularly limited, flexibly can selects as needed.What Fig. 2A-Fig. 2 D showed drive electrode and induction electrode is shaped as pectination
Situation, and in further embodiments, the shape of drive electrode and induction electrode can also for triangle, rhombus, rule or
The different shape such as irregular polygon, arc.
According to embodiment of the present utility model, pressure sensitive layer 20 can include at least one drive electrode Tx and at least
Individual induction electrode Rx, the drive electrode Tx and induction electrode Rx are with layer and setting interlaced with each other.In some embodiments, reference picture
2A- Fig. 2 D, induction electrode are in pectination and mutually chimeric with drive electrode.Specifically, in some embodiments, a faradism
Pole is chimeric (Fig. 2A) with a drive electrode.In other embodiments, an induction electrode and multiple drive electrodes
Chimeric (Fig. 2 B).In still other embodiments, multiple induction electrodes are chimeric (Fig. 2 C) with a drive electrode.It is other
In embodiment, multiple induction electrodes are chimeric (Fig. 2 D) with multiple drive electrodes.
According to embodiment of the present utility model, reference picture 3A- Fig. 3 B, drive electrode and induction electrode can be with overburden pressure senses
Answer the Zone Full of layer 20, it is also possible to the subregion of overburden pressure inductive layer 20, can realize good pressure-responsive,
And pressure sensitive sensitivity is higher.It will be understood by those skilled in the art that the distribution mode of drive electrode and induction electrode is not
The mode being limited to shown in Fig. 3 A- Fig. 3 B, flexibly can be arranged as needed.For example, in other embodiment, drive electrode
The corner of pressure sensitive layer 20, the midpoint of four edges, the edge of surrounding, centre etc. can be distributed in induction electrode.
According to embodiment of the present utility model, ground plane 30 is electrically connected with and forms feeling of stress with the pressure sensitive layer 20
Electric capacity is answered, the relevant information of the pressure of cover sheet 10 is put on for detection, stressed position is such as applied, is applied stressed big
It is little.Specifically, it is with reference to Fig. 4, as follows according to the operation principle of the pressure sensitive touch screen of this utility model embodiment：Feeling of stress
Drive electrode Tx and induction electrode Rx is provided with answering layer 20, forms electric capacity C1, drive between drive electrode Tx and induction electrode Rx
Electric capacity C2 is formed between moving electrode Tx and ground plane 30, forms electric capacity C3, to protection cap between induction electrode Rx and ground plane 30
When plate 10 applies pressure, pressure sensitive layer 20 is deformed under pressure, between drive electrode Tx and induction electrode Rx, is driven
Between moving electrode Tx and ground plane 30, the distance between induction electrode Rx and ground plane 30 change therewith, and then above-mentioned electricity
The capacitance for holding C1, C2 and C3 changes.Therefore, it can set up the stress of above-mentioned capacitance variation information and pressure sensitive touch screen
The mutual relation data base of information.In actual applications, also include memorizer and processor in the pressure sensitive touch screen, deposit
The diverse location in pressure sensitive touch screen that is stored with reservoir is carried out under different force value touches, in pressure sensitive touch screen
Detection power each capacitance variation information, processor be used for reduced pressure sense touch screen detection obtain capacitance variation information with
The capacitance variation information of institute's pre-stored, so that judge the touch information of pressure sensitive touch screen.Wherein touch information includes touching
Power size, it is also possible to including the position of touch force.
In embodiment of the present utility model, using the hardware of backlight module as ground plane.Thus, it is possible to fully
Using existing part, it is not necessary to additionally increase single ground plane, while simplifying structure, be conducive to product lightening.
According to embodiment of the present utility model, with reference to Fig. 5, can have between pressure sensitive layer 20 and ground plane 30 and can press
Contracting gap 50.Thereby, it is possible to provide deformable space for pressure sensitive layer 20.In some embodiments of the present utility model, can
Compression clearance 50 can be the air gap, it is also possible to by other soft elastomeric materials fillings, for example including but not limited to foam,
Porous material etc..In embodiment of the present utility model, the thickness in compressible gap 50 can be between 0.05-0.5 millimeters, together
Between 0.02-0.2 millimeters, thus the difference in thickness in the compressible gap 50 between the variant position of one product may remain in,
Ensure that good homogeneity.
It will be understood by those skilled in the art that Fig. 5 is only the position of wall 50 to be illustrated with schematic drawing, it is impossible to
Be regarded as to restriction of the present utility model, the particular location that compressible gap 50 is arranged can for cover sheet and display unit it
Between, between display unit and backlight module or in the backlight module, specifically can according to pressure sensitive layer 20 with show single
The concrete set location reasonable selection of unit 40.For example include but is not limited to：Pressure sensitive layer 20 is arranged at cover sheet 10 and shows
When showing between unit 40, wall 50 can be arranged inside the display module 41 of display unit 40 and blooming piece lamination 421,
Or between blooming piece lamination 421 and hardware 422；When pressure sensitive layer 20 is arranged at 40 inside of display unit, wall
50 can be arranged inside display unit 40 and positioned at the lower section of pressure sensitive layer 20, or blooming piece lamination 421 and metal
Between component 422；When pressure sensitive layer 20 is arranged at below display unit, wall 50 is arranged at hardware 422 and pressure
Between inductive layer 20.
According to embodiment of the present utility model, the pressure sensitive touch screen may further include：Screen layer 60, the shielding
Layer 60 is located at side of the pressure sensitive layer 20 away from the hardware.By arranging screen layer 60, display unit can be eliminated
40 noise signal is disturbed to the signal of pressure sensitive layer 20.In some embodiments of the present utility model, with reference to Fig. 6, pressure
Inductive layer 20 may further include substrate 21 and electrode layer 22, and substrate 70 includes the first surface being oppositely arranged and the second table
Face, electrode layer 22 (induction electrode and drive electrode) are located at first surface, and screen layer 60 is located at the second surface.Thus, base
Plate 21 effectively can be played a supporting role to pressure electrode layer 22 and screen layer 60, while can cause to insulate between the two.Root
According to embodiment of the present utility model, the concrete material for forming screen layer 60 is not particularly limited, and can be ITO, metal grill, receive
Meter Yin Si conducting films or the coat of metal etc., screen layer 60 can be whole face structure, or mark linear structure, wherein trace
Between spacing can be less than 1 millimeter.Formed substrate concrete material be also not particularly limited, can for PET, PC, PMMA,
COP, glass, flexible printed circuit board etc..The thickness of substrate can be 10-150 μm.Thus, both with preferable supporting role,
Again will not be blocked up and cause touch screen thickness excessive.In specific example of the present utility model, screen layer 60 and electrode layer 22 can
To be formed from the same material, it is for instance possible to use the thin film of two-sided plating ITO, only needs one side wherein to carry out conductive pattern
Making, you can formed electrode layer 22, the one side not dealt be screen layer 60.
According to embodiment of the present utility model, the pressure sensitive touch screen may further include touch sensing unit, should
Touch sensing unit can have touch screen structure commonly used in the art, for example can for external hanging type (including but not limited to OGS,
GF, GFF, GF2 etc.), the touch screen structure of the mode such as on-cell, in-cell.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " suitable
The orientation of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " or position relationship are based on orientation shown in the drawings
Or position relationship, be for only for ease of description this utility model and simplify description, rather than indicate or imply indication device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral；Can be
It is mechanically connected, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in this utility model.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State.And, the specific features of description, structure, material or feature can be with
Combined in any one or more embodiments or example in an appropriate manner.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered
Row is combined and is combined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to restriction of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, be changed, being replaced and modification.
Claims (11)
1. a kind of pressure sensitive touch screen, it is characterised in that include:
Cover sheet；
Display unit, the display unit are arranged at the lower section of the cover sheet, and including display module and backlight module, institute
Stating backlight module includes blooming piece lamination and hardware, and the hardware is to support the display module and the light
Learn diaphragm lamination；
Pressure sensitive layer, the pressure sensitive layer include drive electrode and induction electrode, and the drive electrode and induction electrode are same
Layer and setting interlaced with each other；And
Ground plane, the ground plane are electrically connected with and are formed pressure sensitive electric capacity, and the ground plane with the pressure sensitive layer
For the hardware.
2. pressure sensitive touch screen according to claim 1, it is characterised in that the pressure sensitive layer and the ground plane
Between have compressible gap.
3. pressure sensitive touch screen according to claim 2, it is characterised in that the compressible gap is located at the protection
Between cover plate and the display unit, between the display unit and the backlight module or in the backlight module.
4. pressure sensitive touch screen according to claim 2, it is characterised in that fill in the compressible gap flexible
Material.
5. pressure sensitive touch screen according to claim 1 and 2, it is characterised in that the pressure sensitive layer is arranged at institute
State between cover sheet and display unit, inside the display unit, or the display unit below.
6. pressure sensitive touch screen according to claim 1 and 2, it is characterised in that the induction electrode and the driving
Electrode is in pectination and is mutually fitted together to.
7. pressure sensitive touch screen according to claim 6, it is characterised in that：Described in one induction electrode and one
Drive electrode is chimeric, an induction electrode is chimeric with multiple drive electrodes, multiple induction electrodes and an institute
State drive electrode to be fitted together to, or multiple induction electrodes are chimeric with multiple drive electrodes.
8. pressure sensitive touch screen according to claim 1 and 2, it is characterised in that further include：
Screen layer, the screen layer are arranged at side of the pressure sensitive layer away from the hardware.
9. pressure sensitive touch screen according to claim 8, it is characterised in that the pressure sensitive layer further includes base
Plate, the substrate include the first surface being oppositely arranged and second surface, and the induction electrode is located at institute with the drive electrode
First surface is stated, the screen layer is located at the second surface.
10. pressure sensitive touch screen according to claim 9, it is characterised in that the thickness of the substrate is at 10-150 μm.
11. pressure sensitive touch screens according to claim 1, it is characterised in that also including touch-control sensing layer, the touch-control
Inductive layer is located at same layer with the pressure sensitive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686223.2U CN206039468U (en) | 2016-07-01 | 2016-07-01 | Forced induction touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686223.2U CN206039468U (en) | 2016-07-01 | 2016-07-01 | Forced induction touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206039468U true CN206039468U (en) | 2017-03-22 |
Family
ID=58310057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620686223.2U Expired - Fee Related CN206039468U (en) | 2016-07-01 | 2016-07-01 | Forced induction touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206039468U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107562237A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen |
| CN108762587A (en) * | 2018-02-12 | 2018-11-06 | 敦泰科技(深圳)有限公司 | Capacitive pressure detection components |
| CN109696976A (en) * | 2017-10-20 | 2019-04-30 | 苏州欧菲光科技有限公司 | Touch-control screen structure and electronic device |
| WO2019233302A1 (en) * | 2018-06-04 | 2019-12-12 | 维沃移动通信有限公司 | Touch screen, touch pressure detection method and terminal |
| CN112837623A (en) * | 2021-02-26 | 2021-05-25 | 京东方科技集团股份有限公司 | Display module and electronic equipment |
-
2016
- 2016-07-01 CN CN201620686223.2U patent/CN206039468U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107562237A (en) * | 2016-07-01 | 2018-01-09 | 南昌欧菲生物识别技术有限公司 | Pressure sensitive touch screen |
| CN109696976A (en) * | 2017-10-20 | 2019-04-30 | 苏州欧菲光科技有限公司 | Touch-control screen structure and electronic device |
| CN108762587A (en) * | 2018-02-12 | 2018-11-06 | 敦泰科技(深圳)有限公司 | Capacitive pressure detection components |
| WO2019233302A1 (en) * | 2018-06-04 | 2019-12-12 | 维沃移动通信有限公司 | Touch screen, touch pressure detection method and terminal |
| CN112837623A (en) * | 2021-02-26 | 2021-05-25 | 京东方科技集团股份有限公司 | Display module and electronic equipment |
| CN112837623B (en) * | 2021-02-26 | 2024-04-16 | 京东方科技集团股份有限公司 | Display module and electronic equipment |
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