CN109144319A - The driving method of sensing arrangement, display equipment and sensing arrangement - Google Patents
The driving method of sensing arrangement, display equipment and sensing arrangement Download PDFInfo
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- CN109144319A CN109144319A CN201810962952.XA CN201810962952A CN109144319A CN 109144319 A CN109144319 A CN 109144319A CN 201810962952 A CN201810962952 A CN 201810962952A CN 109144319 A CN109144319 A CN 109144319A
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- pressure
- pressure sensitivity
- sensitivity electrode
- electrode
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
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- General Physics & Mathematics (AREA)
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- Image Input (AREA)
Abstract
The present invention provides the driving methods of a kind of sensing arrangement, display equipment and sensing arrangement, which includes: the first pressure sensitivity electrode, have at least one imaging hole；The side of the first pressure sensitivity electrode is arranged in fingerprint Identification sensor, and projection of the fingerprint Identification sensor on the first pressure sensitivity electrode corresponds to the imaging hole；Second pressure sensitivity electrode, is arranged in the side that the fingerprint Identification sensor deviates from the first pressure sensitivity electrode, forms pressure sensing capacitance with the first pressure sensitivity electrode.Sensing arrangement reduces on fingerprint identification function and pressure touch function set a to device thickness of the device, reduces costs simultaneously, improve the flexibility of device in the present invention.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of tool sensing arrangement, display equipment and sensing arrangement
Driving method.
Background technique
OLED is also known as Organic Light Emitting Diode, and organic LED display device has been widely used.Organic hair
Optical diode display device includes anode, cathode and the organic luminous layer between anode and cathode.It is injected when from anode
Hole with from cathode injected electrons in organic luminous layer compound tense, organic luminous layer shine.OLED display technology has
The advantages that self-luminous, wide viewing angle, high contrast, low power consumption, high reaction speed, has been widely used in mobile display eventually
In end equipment.
Pressure touch (Force Touch) function is a kind of new touch sensing technology, the touching with pressure touch function
It touches screen and has been applied to high-end intelligent terminal.By pressure touch, terminal device can perceive touch-control pressing dynamics, intelligent operation system
System makes corresponding reaction according to the difference of pressing dynamics, and completely new interactive experience is brought to user.
Shielding lower fingerprint identification technology is to be placed in fingerprint Identification sensor below display screen, therefore do not changing user
Screen design comprehensively is realized on the basis of fingerprint recognition habit, fingerprint identification technology is mainly that ultrasound examination is known under existing screen
Not, optical detection identification etc..
Due to the fast development of electronic equipment, pressure touch function is gathered in mobile display terminal and has shielded lower fingerprint and has been known
Other function, and pressure touch function shows that equipment is mostly to attach to have feeling of stress below LCD backlight plate or OLED display BP
The sensing membrane (sensor film) answered, when outside applies pressure, the direct-to-ground capacitance of sense film can change, and pass through detection
Capacitance change realizes pressure touch function.Pressure touch and fingerprint recognition are played a role by respective functional component.
Due to increasing sensing membrane, the integral thickness of device is increased, while increasing cost and reducing the flexibility of device.
It should be noted that information is only used for reinforcing the reason to background of the invention disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
The embodiment of the present invention is related to a kind of sensing arrangement and display equipment, and fingerprint identification function and pressure can be made to touch
Control detection function is integrated into a device, is reduced the integral thickness of device, is reduced costs, while improving display equipment
Flexibility.
According to an aspect of the present invention, a kind of sensing arrangement is provided, comprising:
First pressure sensitivity electrode has at least one imaging hole；
The side of the first pressure sensitivity electrode is arranged in fingerprint Identification sensor, and the fingerprint Identification sensor exists
Projection on the first pressure sensitivity electrode at least covers the imaging hole；
The side that the fingerprint Identification sensor deviates from the first pressure sensitivity electrode is arranged in, with institute in second pressure sensitivity electrode
It states the first pressure sensitivity electrode and forms pressure sensing capacitance.
In one embodiment, the first pressure sensitivity electrode has multiple shading sub-electrodes, at least one described shading electricity
It is great to have at least one imaging hole, and black colored insulating material is provided between the adjacent shading sub-electrode.
It in one embodiment, further include pressure touch driving chip and a plurality of plain conductor, the number of the plain conductor
Measure it is identical as the quantity of the shading sub-electrode, each shading sub-electrode pass through respectively the plain conductor with it is described
The connection of pressure touch driving chip.
In one embodiment, further include transparent insulating layer, be arranged in the first pressure sensitivity electrode close to the fingerprint recognition
The side of sensor, in the transparent insulating layer on the surface of the first pressure sensitivity electrode side or away from first pressure
The first groove is provided on the surface of sense electrode side, the fingerprint Identification sensor is arranged in first groove.
It in one embodiment, further include that the first pressure sensitivity electrode is set close to the side of the fingerprint Identification sensor
Transparent insulating layer and foam insulating layer, the transparent insulating layer be located at the first pressure sensitivity electrode and the foam insulating layer it
Between, first window, the fingerprint Identification sensor are offered close to the surface of the transparent insulating layer in the foam insulating layer
It is arranged in the first window.
In one embodiment, the shading sub-electrode is sheet metal.
According to another aspect of the present invention, a kind of display equipment, including display panel and sensing as described above are provided
Structure.
In one embodiment, the display panel is OLED display panel, comprising: stacks gradually insulating layer, the TFT of setting
Array circuit layer, electroluminescent anode layer, electroluminescence layer, electroluminescent cathode layer and thin-film encapsulation layer, the insulating layer back
Surface from the tft array circuit layer is contacted with the first pressure sensitivity electrode of the sensing arrangement.
In one embodiment, the second pressure sensitivity electrode in the sensing arrangement is configured as in the metal of the display equipment
Frame.
According to another aspect of the present invention, a kind of driving method of above-mentioned sensing arrangement is provided, comprising:
In at any time, the first pressure sensitivity electrode is imaged fingerprint by its imaging hole, is sensed by fingerprint recognition
Device carries out fingerprint recognition；
Within the pressure touch time, pressure sensing capacitance carries out charge and discharge, when the first pressure sensitivity electrode, which is under pressure, to be acted on,
The variable quantity of pressure sensing capacitance value is converted to the output of touch-control pressure value；Within the non-pressure touch-control time, pressure sensing capacitance fills
Electric discharge stops.
Sensing arrangement of the invention is subtracted by focusing on fingerprint identification function and pressure touch function on a kind of device
The thickness for having lacked device, reduces costs simultaneously, improves the bending performance of device.It applies it in display equipment, reduces
The thickness of entire display equipment, while also improving its flexibility.
Detailed description of the invention
Including attached drawing to provide a further understanding of the present invention, attached drawing is incorporated herein and forms one of the application
Point, attached drawing shows the embodiment of the present invention, and principle for explaining the present invention together with the description.It should be evident that following
Attached drawing is only some embodiments of the present invention, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it can also be obtained according to these attached drawings other accompanying drawings.In the accompanying drawings:
Fig. 1 schematically shows the structural schematic diagram of the sensing arrangement of an exemplary embodiment of the present invention；
Fig. 2 schematically shows the structural schematic diagrams of the sensing arrangement of an exemplary embodiment of the present invention；
Fig. 3 schematically shows the structural schematic diagram of sensing arrangement in accordance with an alternative illustrative embodiment of the present invention；
Fig. 4 schematically shows the structural schematic diagrams of the display equipment of an exemplary embodiment of the present invention；
Fig. 5 schematically shows the structural schematic diagram of display equipment in accordance with an alternative illustrative embodiment of the present invention；
Fig. 6 schematically shows the structural schematic diagram of display equipment in accordance with an alternative illustrative embodiment of the present invention；
Fig. 7 schematically shows the pressure touch detection timing diagram of an exemplary embodiment of the present invention；
Fig. 8 schematically shows the driving method flow chart of sensing arrangement in the present invention.
Description of symbols:
1- sensing arrangement
11- the first pressure sensitivity electrode 111- imaging hole 12- fingerprint Identification sensor
13- pressure touch driving chip 14- plain conductor 15- transparent insulating layer
151- the first groove 16- foam insulating layer 161- first window
17- the second pressure sensitivity electrode
2-OLED display panel
21- insulating layer 22-TFT array circuit layer 23- electroluminescent anode layer
24- electroluminescence layer 25- electroluminescent cathode layer 26- thin-film encapsulation layer
3- metal center
Specific embodiment
Exemplary embodiment of the present invention is described more fully with now with reference to attached drawing.However, embodiment can be with a variety of
Form is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the present invention will more
Add fully and completely, and design of the invention is comprehensively communicated to those skilled in the art.Described feature, structure or
Characteristic can be incorporated in any suitable manner in one or more embodiments.
It will be further understood that when the term " comprising " and/or " including " is used in this specification, described in specification presence
Feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of other one or more features, whole
Body, step, operation, element, component and/or their group.
The embodiment provides a kind of sensing arrangements 1, referring to FIG. 1, it includes the first pressure sensitivity electrode 11, fingerprint
Identification sensor 12, the second pressure sensitivity electrode 17.The first pressure sensitivity electrode 11 has at least one imaging hole 111.Fingerprint recognition passes
The side of the first pressure sensitivity electrode 11 is arranged in sensor 12, and its projection on the first pressure sensitivity electrode 11 corresponds to imaging hole 111.The
The side that fingerprint Identification sensor 12 deviates from the first pressure sensitivity electrode 11 is arranged in two pressure sensitivity electrodes 17, with 11 shape of the first pressure sensitivity electrode
At pressure sensing capacitance.
Specifically, the lower section of the first pressure sensitivity electrode 11 is arranged in fingerprint Identification sensor 12, the second pressure sensitivity electrode 17 is set
It sets in the lower section of fingerprint Identification sensor 12."upper", "lower" in the present invention can be understood as natural light through imaging hole 111
Direction is from top to bottom.
In one embodiment, referring to FIG. 2, the first pressure sensitivity electrode 11 has multiple shading sub-electrodes, at least one screening
Photon electrode has at least one imaging hole, and being provided with black colored insulating material between adjacent shading sub-electrode keeps it exhausted each other
Edge.
Sensing knot 1 of the invention focuses on fingerprint recognition and pressure touch function in one device, avoids individually
Pressure sensing membrane is set, can reduce the thickness of device, and reduce cost, increase the flexibility of device.
Please refer to figs. 1 to 4, an embodiment according to the present invention, and the first pressure sensitivity electrode 11 has multiple imaging holes 111,
Light passes through imaging hole 111, and fingerprint is imaged using pinhole imaging system principle.In the present embodiment, the first pressure sensitivity electrode 11 is piece
Shape, multiple imaging holes are distributed with thereon, since the area of the first pressure sensitivity electrode 11 of the sheet is larger, and the area of fingerprint collecting
Domain is smaller, therefore, fingerprint collecting region is determined on the first pressure sensitivity electrode 11 of the sheet, that is, is guaranteed in the fingerprint collecting region
Middle necessarily to have imaging hole, so that fingerprint Identification sensor 12 can be arranged in the lower section of the first pressure sensitivity electrode 11, and it is the
The imaging hole in the corresponding fingerprint collecting region of projection on one pressure sensitivity electrode 11, is acquired fingerprint image and identifies.One
In embodiment, which is sheet metal, has the function of shading, can also be other materials, as long as being capable of conduct
Electrode and shading, it is not limited here.
In addition, referring to FIG. 2, the sensing arrangement in the present invention further includes pressure touch driving chip 13 and a plurality of metal
Conducting wire 14.One end of plain conductor 14 connects the first pressure sensitivity electrode 11, and the other end connects pressure touch driving chip 13.
The pressure touch driving chip 13 includes at internal electric source, oscillation frequency signal generation circuit and oscillation frequency signal
Module is managed, charge and discharge can be carried out to the first pressure sensitivity electrode 11, which is those skilled in the art institute
Known, about its specific structure, details are not described herein.
Realizing the principle of pressure touch is, the first pressure sensitivity electrode 11 and the second pressure sensitivity electrode 17 form a pressure detecting electricity
Hold, which has direct-to-ground capacitance.Pressure touch driving chip 13 repeatedly fills the pressure sensing capacitance
Electric discharge forms oscillating circuit.When there is no press pressure, the first pressure sensitivity electrode 11 (i.e. conductive shading) and the second pressure sensitivity electrode
The distance between 17 will not change, and capacitance does not also change, and generate an oscillation frequency signal, when there is press pressure
When, the distance between the first pressure sensitivity electrode 11 and the second pressure sensitivity electrode 17 can change, and capacitance can also change, and generate
Another oscillation frequency signal, it is defeated that pressure touch driving chip 13 according to the difference of two oscillation frequency signals is converted to pressure value
Out.
However, the pressure sensing capacitance formed is larger since the area of the first pressure sensitivity electrode 11 of general sheet is larger,
Charge and discharge process can become slowly, to cause pressure touch insensitive.Therefore, referring to FIG. 2, multiple shading sub-electrodes can be led to
It crosses insulating cement to be bonded, i.e., final multiple lesser shading sub-electrodes are spliced to form one piece of first pressure sensitivity electrode 11, and adjacent
Shading sub-electrode between it is insulated from each other.The quantity of plain conductor 14 is identical as the quantity of shading sub-electrode, so that every piece of shading
Sub-electrode passes through a plain conductor 14 respectively and connect with pressure touch driving chip 13.Pass through the insulation of multiple shading sub-electrodes
Splicing forms multiple lesser pressure sensing capacitances, improves the sensitivity of pressure touch detection.Further, since after the splicing
The first pressure sensitivity electrode 11 still play the function of fingerprint recognition, in order to prevent in fingerprint recognition, light is generated through insulating cement
Stray light, and then fingerprint imaging quality is influenced, the insulating cement in the embodiment of the present invention uses the insulating cement of black.In an embodiment
In, shading sub-electrode is sheet metal.
In one embodiment, at least one imaging hole is all had on each shading sub-electrode, and be uniformly distributed, to improve most
Whole display quality.
In one embodiment, the not set second pressure sensitivity electrode 17 of sensing arrangement 1, but utilize the metal of electric terminal equipment
Center 3 is used as the second pressure sensitivity electrode.
Sensing arrangement 1 can be placed on the electronics of any required fingerprint identification function and pressure touch function in the present invention
In terminal device, Fig. 5 to Fig. 6 is please referred to, after being placed in electric terminal equipment, the metal center 3 of electric terminal equipment and
One pressure sensitivity electrode 11 forms pressure sensing capacitance, and metal center 3 and the second pressure sensitivity electrode 17 play identical effect, replaces and passes
The second pressure sensitivity electrode 17 in structure 1 is felt, so that the pressure sensing capacitance has direct-to-ground capacitance.
Certainly, in another embodiment, the second pressure sensitivity electrode 17 in the sensing arrangement 1 or a sheet metal,
The effect of performance is identical as the effect of metal center 3 in above-described embodiment, forms pressure detecting electricity with the first pressure sensitivity electrode 11
Hold.When being not suitable in certain electric terminal equipments using metal center 3 as the second pressure sensitivity electrode, this implementation can be used
Sheet metal in example is as the second pressure sensitivity electrode.
Metal center 3 is the component for protecting the similar shell of electronic equipment, is typically provided with metal plate, on a metal plate
Through-hole is offered, which is used to carry the different mould groups in electronic equipment, such as mobile phone center, iPad center.
As shown in Figure 1, in one embodiment, which can also include transparent insulating layer 15, the transparent insulating layer
15 are arranged in the first pressure sensitivity electrode 11 close to the side of fingerprint Identification sensor 12, that is, are arranged under the first pressure sensitivity electrode 11
Side.Since fingerprint Identification sensor 12 is also disposed on the lower section of the first pressure sensitivity electrode 11, it can be leaned in transparent insulating layer 15
The first groove 151 is arranged in the surface of the side of nearly first pressure sensitivity electrode 11 on the surface of 11 side of the first pressure sensitivity electrode,
The imaging hole in the corresponding fingerprint collecting region of projection of first groove 151 on the first pressure sensitivity electrode 11, fingerprint recognition sensing
Device 12 is arranged in first groove 151, please refers to Fig. 4 and Fig. 5.In the present embodiment, the second pressure sensitivity electrode 17 is arranged saturating
Bright insulating layer 15 deviate from the first pressure sensitivity electrode 11 side, specially with the following table face contact of transparent insulating layer 15.Implement one
In example, which can be transparent PI flexible base board, and PI is polyimides or the transparent insulating layer 15 is other
Transparent insulation material is formed, it is not limited here.
As shown in figure 3, in one embodiment, which can also include that setting is close in the first pressure sensitivity electrode 11
The transparent insulating layer 15 and foam insulating layer 16 of the side of fingerprint Identification sensor 12, the transparent insulating layer 15 are located at the first pressure sensitivity
Between electrode 11 and foam insulating layer 16.First window is offered close to the surface of transparent insulating layer 15 in foam insulating layer 16
161, the imaging hole in the corresponding fingerprint collecting region of projection of the first window 161 on the first pressure sensitivity electrode 11, fingerprint recognition passes
Sensor 12 is arranged in the first window 161, i.e., foam insulating layer 16 is used to fix fingerprint Identification sensor 12, while as pressure
The dielectric of power detection capacitor.The first window 161 can run through the foam insulating layer 16, be also possible to from foam insulating layer
16 upper surface has the groove of certain depth to lower surface, as long as guaranteeing that fingerprint Identification sensor 12 can smoothly collect finger
Print image, it is not limited here.In the present embodiment, the setting of the second pressure sensitivity electrode 17 is in foam insulating layer 16 away from transparent
The side of insulating layer 15, specially with the following table face contact of foam insulating layer 16.
Above embodiments illustrate the different set-up mode of fingerprint Identification sensor 12, those skilled in the art can basis
Size, thickness or model of fingerprint Identification sensor 12 etc. go to select suitable set-up mode.Preferably, if fingerprint recognition senses
Device 12 is relatively thin, then is disposed in the first groove 151 of transparent insulating layer 15, and then can reduce the thickness of entire device.
Sensing arrangement 1 in above-described embodiment focuses on two functions in one device, simplifies structure, and reduce
The thickness of device, increases the flexibility of device, reduces costs.
The present invention also provides a kind of display equipment comprising display panel and above-mentioned sensing arrangement 1, the display are set
It is standby, fingerprint recognition and pressure touch function are integrated into a device, avoided using well known pressure sensing membrane, and then is dropped
The integral thickness of low display equipment, reduces costs and increases the flexibility of display equipment.
As shown in Figs. 4-6, which is OLED display panel 2, and the side of OLED display panel 2 is provided with as above
The sensing arrangement 1.The OLED display panel 2 specifically includes: stack gradually from bottom to top setting insulating layer 21, TFT gusts
Column circuits layer 22, electroluminescent anode layer 23, electroluminescence layer 24, electroluminescent cathode layer 25 and thin-film encapsulation layer 26, wherein
Insulating layer 21 is contacted away from the surface of tft array circuit layer with the first pressure sensitivity electrode 11 of sensing arrangement 1.Specifically, the first pressure
The upper surface of sense electrode 11 and the following table face contact of insulating layer 21.TFT is thin film transistor (TFT) (Thin Film Transistor).
In one embodiment, which includes the first pressure sensitivity electrode 11, fingerprint Identification sensor 12, the second pressure sensitivity
Electrode 17.The first pressure sensitivity electrode 11 has at least one imaging hole 111.The setting of fingerprint Identification sensor 12 is in the first pressure sensitivity electricity
The side of pole 11, and its projection on the first pressure sensitivity electrode 11 corresponds to imaging hole 111.Second pressure sensitivity electrode 17 is arranged in fingerprint
Identification sensor 12 deviates from the side of the first pressure sensitivity electrode 11, forms pressure sensing capacitance with the first pressure sensitivity electrode 11.
In one embodiment, which has multiple shading sub-electrodes, at least one shading sub-electrode tool
There is at least one imaging hole, being provided with black colored insulating material between adjacent shading sub-electrode keeps its insulated from each other.
In addition, the sensing arrangement 1 further includes pressure touch driving chip 13 and a plurality of plain conductor 14.Plain conductor 14
One end connect the first pressure sensitivity electrode 11, the other end connect pressure touch driving chip 13.Also, the quantity of plain conductor 14 with
The quantity of shading sub-electrode is identical, so that every piece of shading sub-electrode passes through a plain conductor 14 respectively and pressure touch drives core
Piece 13 connects.
At pressure touch driving chip 13, including internal electric source, oscillation frequency signal generation circuit and oscillation frequency signal
Module is managed, charge and discharge can be carried out to the first pressure sensitivity electrode 11, which is those skilled in the art institute
Known, about its specific structure, details are not described herein.
According to above-mentioned pressure touch principle, the first pressure sensitivity electrode 11 in the present invention forms a pressure with metal center 3
Capacitor is detected, i.e., the second pressure sensitivity electrode in sensing arrangement 1 is configured as metal center 3, so that the pressure sensing capacitance has
Direct-to-ground capacitance.
It further include display driving IC (Display Driver IC), display driving in display equipment in the present invention
IC is electrically connected with pressure touch driving chip 13, its frame synchronizing signal is sent to pressure touch driving chip 13, that is, is being shown
In the non-display time of panel, the pressure touch driving chip 13 is driven to carry out charge and discharge to pressure sensing capacitance.Display driving
IC specifically connect known to those skilled in the art with pressure touch driving chip 13, and details are not described herein.It is driven by display
The signal transmission of dynamic IC, can be realized within the non-display time of display panel, pressure touch driving chip 13 is to the first pressure sensitivity
Electrode 11 carries out charge and discharge, and then realizes pressure touch function.
The present invention also provides a kind of driving method of sensing arrangement, which includes:
At any time in, when there is finger pressing, the first pressure sensitivity electrode 11 by its imaging hole 111 to fingerprint carry out at
Picture carries out fingerprint recognition by fingerprint Identification sensor 12.
Within the pressure touch time, the pressure sensing capacitance that is formed by the first pressure sensitivity electrode 11 and the second pressure sensitivity electrode 17 into
Row charge and discharge, when the first pressure sensitivity electrode 11, which is under pressure, to be acted on, the converted quantity of pressure sensing capacitance value is converted to touch-control pressure
Value output, within the non-pressure touch-control time, pressure sensing capacitance stops charge and discharge.
Be external device to the devices of pressure sensing capacitance charge and discharge, as pressure touch driving chip 13 or other can
The device to charge, it is not limited here；Variable quantity about capacitance is converted to touch-control pressure value and exports, can be by pressing
Power touch-control driving chip 13 realizes can also have other existing devices to realize, on how to fill to pressure sensing capacitance
It electric discharge and capacitance variation amount is converted to touch-control pressure value and exported is known to the skilled person, it is no longer superfluous herein
It states.
In addition, the OLED with above-mentioned sensing arrangement in the present invention shows fingerprint identification function and the pressure touching of equipment
Control the concrete implementation process of function are as follows:
In at any time, the first pressure sensitivity electrode 11 is able to carry out fingerprint recognition.Specifically include: finger pressing is in the first pressure
On the display screen of the display panel of 11 face of sense electrode, the fingerprint is imaged in the imaging hole 111 on the first pressure sensitivity electrode 11,
Fingerprint Identification sensor 12 acquires and identifies the fingerprint imaging.
When display panel is in the non-display time, pressure touch driving chip 13 carries out charge and discharge to pressure sensing capacitance
Electricity, and the variable quantity of pressure sensing capacitance value is converted into the output of touch-control pressure value.When display panel is in the display time, pressure
Power touch-control driving chip 13 stops the charge and discharge to pressure sensing capacitance.
It is of the invention by the above content it is found that showing that the fingerprint identification function of equipment can use at any time in the present invention
Pressure touch function was realized within the display panel non-display time；Therefore, within the display time, pressure touch driving chip 13
Charge and discharge will not be carried out to the first pressure sensitivity electrode 11, prevent from loading associated drives detection signal on the first pressure sensitivity electrode 11 to OLED
The pixel-driving circuit of display panel has an impact, and then may influence picture quality；Meanwhile also saving pressure detecting generation
Power consumption.Please further refer to Fig. 7, in the display time (DE high level region) of display panel, pressure touch driving chip 13
Charge and discharge are not carried out to the first pressure sensitivity electrode 11, in the non-display time (DE low level area) of display panel, correspond to frame synchronization
Signal VS, pressure touch driving chip 13 carry out charge and discharge to conductive shading 11.Wherein, VS is frame synchronizing signal, and DE is number
According to enable signal, Tx is pressure touch driving signal.
In conclusion sensing arrangement 1 in the present invention focuses on two kinds of functions on a kind of device, reduce the thickness of device
Degree, reduces costs simultaneously, improves the flexibility of device.It is applied in display equipment, reduces the thickness of entire display equipment,
Its flexibility is also improved simultaneously, reduces production cost.
Attached drawing has been directed to give to the description before certain exemplary embodiments of the invention.These exemplary realities
It applies that example is not intended to exhaustive or limits the invention to disclosed precise forms, and it is evident that above
Under the enlightenment of introduction, those of ordinary skill in the art can make many modifications and variations.Therefore, the scope of the present invention and unawareness
Figure is confined to embodiment above-mentioned, but is intended to being limited by claim and their equivalent.
Claims (10)
1. a kind of sensing arrangement characterized by comprising
First pressure sensitivity electrode has at least one imaging hole；
The side of the first pressure sensitivity electrode is arranged in fingerprint Identification sensor, and the fingerprint Identification sensor is described
Projection on first pressure sensitivity electrode at least covers the imaging hole；
The side that the fingerprint Identification sensor deviates from the first pressure sensitivity electrode is arranged in second pressure sensitivity electrode, with described the
One pressure sensitivity electrode forms pressure sensing capacitance.
2. sensing arrangement according to claim 1, which is characterized in that the first pressure sensitivity electrode has multiple shading electricity
Pole, at least one described shading sub-electrode has at least one imaging hole, and is arranged between the adjacent shading sub-electrode
There is black colored insulating material.
3. sensing arrangement according to claim 2, which is characterized in that further include pressure touch driving chip and a plurality of gold
Belong to conducting wire, the quantity of the plain conductor is identical as the quantity of the shading sub-electrode, and each shading sub-electrode leads to respectively
The plain conductor is crossed to connect with the pressure touch driving chip.
4. sensing arrangement according to claim 1 or 2, which is characterized in that further include transparent insulating layer, setting is described the
One pressure sensitivity electrode is close to the side of the fingerprint Identification sensor, in the transparent insulating layer close to the first pressure sensitivity electrode one
The first groove, the fingerprint Identification sensor are provided on the surface of side or on the surface of the first pressure sensitivity electrode side
It is arranged in first groove.
5. sensing arrangement according to claim 1 or 2, which is characterized in that further include being arranged in the first pressure sensitivity electrode
Transparent insulating layer and foam insulating layer close to the side of the fingerprint Identification sensor, the transparent insulating layer are located at described the
Between one pressure sensitivity electrode and the foam insulating layer, offered in the foam insulating layer close to the surface of the transparent insulating layer
First window, the fingerprint Identification sensor are arranged in the first window.
6. sensing arrangement according to claim 2, which is characterized in that the shading sub-electrode is sheet metal.
7. a kind of display equipment, including display panel and such as sensing arrangement described in any one of claims 1 to 6.
8. display equipment according to claim 7, which is characterized in that the display panel is OLED display panel, comprising:
Stack gradually the insulating layer of setting, tft array circuit layer, electroluminescent anode layer, electroluminescence layer, electroluminescent cathode layer and
Thin-film encapsulation layer, the insulating layer is away from the surface of the tft array circuit layer and the first pressure sensitivity electrode of the sensing arrangement
Contact.
9. display equipment according to claim 8, which is characterized in that the second pressure sensitivity electrode in the sensing arrangement is matched
It is set to the metal center of the display equipment.
10. a kind of driving method of such as sensing arrangement described in any one of claims 1 to 6 characterized by comprising
At any time in, the first pressure sensitivity electrode is imaged fingerprint by its imaging hole, by fingerprint Identification sensor into
Row fingerprint recognition；
Within the pressure touch time, pressure sensing capacitance carries out charge and discharge, when the first pressure sensitivity electrode, which is under pressure, to be acted on, pressure
The variable quantity of detection capacitance is converted to the output of touch-control pressure value；Within the non-pressure touch-control time, pressure sensing capacitance charge and discharge
Stop.
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| CN201810962952.XA CN109144319B (en) | 2018-08-22 | 2018-08-22 | Sensing structure, display device and driving method of sensing structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992155A (en) * | 2019-03-25 | 2019-07-09 | 云谷（固安）科技有限公司 | Display panel and display device for fingerprint recognition |
| CN112016541A (en) * | 2019-05-30 | 2020-12-01 | 北京小米移动软件有限公司 | Electronic equipment and fingerprint identification image acquisition method |
| CN113467648A (en) * | 2021-07-01 | 2021-10-01 | 维沃移动通信有限公司 | Electronic device |
| US11543904B2 (en) | 2019-12-31 | 2023-01-03 | Samsung Display Co., Ltd. | Display device |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035626A (en) * | 2014-07-02 | 2014-09-10 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition method, touch screen with fingerprint recognition function and terminal device |
| CN105224139A (en) * | 2015-10-30 | 2016-01-06 | 深圳市汇顶科技股份有限公司 | Touch control device and carry out the method for fingerprint detection on touch control device |
| CN106104441A (en) * | 2016-06-16 | 2016-11-09 | 深圳市汇顶科技股份有限公司 | Touch sensor, touch detecting apparatus and detection method, touch control device |
| CN106415459A (en) * | 2016-09-17 | 2017-02-15 | 深圳市汇顶科技股份有限公司 | Touch pressure detection module and apparatus |
| CN106446871A (en) * | 2016-11-04 | 2017-02-22 | 京东方科技集团股份有限公司 | Touch device and touch method |
| CN106971173A (en) * | 2017-04-13 | 2017-07-21 | 京东方科技集团股份有限公司 | Touch base plate and display panel |
| CN206348812U (en) * | 2016-11-25 | 2017-07-21 | 敦泰电子有限公司 | Fingerprint identification module, fingerprint recognition device, and configure the device electrical equipment |
| CN107193472A (en) * | 2017-04-28 | 2017-09-22 | 广东欧珀移动通信有限公司 | Solve lock control method and Related product |
| CN107247921A (en) * | 2017-05-15 | 2017-10-13 | 华勤通讯技术有限公司 | A kind of inducing method and device |
| WO2017218228A1 (en) * | 2016-06-16 | 2017-12-21 | Qualcomm Incorporated | Fingerprint sensor device and methods thereof |
| CN107608549A (en) * | 2017-09-08 | 2018-01-19 | 京东方科技集团股份有限公司 | A kind of induction panel, display device and its driving method |
| CN107632738A (en) * | 2017-09-29 | 2018-01-26 | 京东方科技集团股份有限公司 | A kind of touch-control display panel and preparation method thereof, touch control display apparatus |
| US20180089485A1 (en) * | 2016-09-23 | 2018-03-29 | Samsung Display Co., Ltd. | Display device |
| CN207557923U (en) * | 2017-12-15 | 2018-06-29 | 南昌欧菲光科技有限公司 | Touch screen and touch screen terminal |
-
2018
- 2018-08-22 CN CN201810962952.XA patent/CN109144319B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104035626A (en) * | 2014-07-02 | 2014-09-10 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition method, touch screen with fingerprint recognition function and terminal device |
| CN105224139A (en) * | 2015-10-30 | 2016-01-06 | 深圳市汇顶科技股份有限公司 | Touch control device and carry out the method for fingerprint detection on touch control device |
| WO2017218228A1 (en) * | 2016-06-16 | 2017-12-21 | Qualcomm Incorporated | Fingerprint sensor device and methods thereof |
| CN106104441A (en) * | 2016-06-16 | 2016-11-09 | 深圳市汇顶科技股份有限公司 | Touch sensor, touch detecting apparatus and detection method, touch control device |
| CN106415459A (en) * | 2016-09-17 | 2017-02-15 | 深圳市汇顶科技股份有限公司 | Touch pressure detection module and apparatus |
| US20180089485A1 (en) * | 2016-09-23 | 2018-03-29 | Samsung Display Co., Ltd. | Display device |
| CN106446871A (en) * | 2016-11-04 | 2017-02-22 | 京东方科技集团股份有限公司 | Touch device and touch method |
| CN206348812U (en) * | 2016-11-25 | 2017-07-21 | 敦泰电子有限公司 | Fingerprint identification module, fingerprint recognition device, and configure the device electrical equipment |
| CN106971173A (en) * | 2017-04-13 | 2017-07-21 | 京东方科技集团股份有限公司 | Touch base plate and display panel |
| CN107193472A (en) * | 2017-04-28 | 2017-09-22 | 广东欧珀移动通信有限公司 | Solve lock control method and Related product |
| CN107247921A (en) * | 2017-05-15 | 2017-10-13 | 华勤通讯技术有限公司 | A kind of inducing method and device |
| CN107608549A (en) * | 2017-09-08 | 2018-01-19 | 京东方科技集团股份有限公司 | A kind of induction panel, display device and its driving method |
| CN107632738A (en) * | 2017-09-29 | 2018-01-26 | 京东方科技集团股份有限公司 | A kind of touch-control display panel and preparation method thereof, touch control display apparatus |
| CN207557923U (en) * | 2017-12-15 | 2018-06-29 | 南昌欧菲光科技有限公司 | Touch screen and touch screen terminal |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109992155A (en) * | 2019-03-25 | 2019-07-09 | 云谷（固安）科技有限公司 | Display panel and display device for fingerprint recognition |
| CN109992155B (en) * | 2019-03-25 | 2022-10-14 | 云谷（固安）科技有限公司 | Display panel and display device for fingerprint identification |
| CN112016541A (en) * | 2019-05-30 | 2020-12-01 | 北京小米移动软件有限公司 | Electronic equipment and fingerprint identification image acquisition method |
| US11543904B2 (en) | 2019-12-31 | 2023-01-03 | Samsung Display Co., Ltd. | Display device |
| US12047761B2 (en) | 2019-12-31 | 2024-07-23 | Samsung Display Co., Ltd. | Display device |
| CN113467648A (en) * | 2021-07-01 | 2021-10-01 | 维沃移动通信有限公司 | Electronic device |
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| Publication number | Publication date |
|---|---|
| CN109144319B (en) | 2022-04-08 |
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