CN106384739B - Organic light emitting display panel and its driving method, organic light-emitting display device - Google Patents
Organic light emitting display panel and its driving method, organic light-emitting display device Download PDFInfo
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- CN106384739B CN106384739B CN201610756679.6A CN201610756679A CN106384739B CN 106384739 B CN106384739 B CN 106384739B CN 201610756679 A CN201610756679 A CN 201610756679A CN 106384739 B CN106384739 B CN 106384739B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
- H10K30/81—Electrodes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
This application discloses organic light emitting display panel and its driving methods, organic light-emitting display device.Organic light emitting display panel includes substrate, the cathode layer, anode layer on the substrate and the dielectric layer between the cathode layer and anode layer;The cathode layer is multiplexed with the first pressure sensitivity electrode, the anode layer is multiplexed with the second pressure sensitivity electrode, and the anode layer includes multiple anode regions;The first pressure sensitivity electrode, the dielectric layer and the second pressure sensitivity electrode are used for pressure-sensing.The embodiment can realize pressure-sensing on the basis of existing organic light emitting display panel, reduce the production cost, and reduce the thickness of pressure sensitivity display device.
Description
Technical field
This application involves field of display technology, and in particular to organic light emitting display panel and its driving method, organic light emission
Display device.
Background technique
With the development of display technology, the display device with pressure sensitivity function, which has, to be more and more widely used.It is existing
In pressure sensitivity display device, the realization of pressure sensitivity function usually requires to increase between the back light unit and array substrate of liquid crystal display
Film layer structure or organic light emitting display peripheral regions increase film layer structure to form pressure-induced capacitance, pressure is converted
For the variation of pressure-induced capacitance, to detect pressure by the variable quantity for incuding pressure-induced capacitance.
During making above-mentioned pressure sensitivity display device, need to increase the processing step of production pressure-induced capacitance film layer, from
And increase cost of manufacture;Also, due to increasing film layer structure, the thickness of display device may be will increase.In addition, above-mentioned pressure
Feel display panel design of the display device both for rigidity, is not available pressure sensitivity function in flexible display apparatus.
Summary of the invention
In view of this, it is desired to be able to a kind of simple process, pressure sensitivity display device at low cost are provided, further, it is desirable to
The display device thickness of offer is small, can be applied to flexible display panels.In order to solve said one or multiple technical problems, this Shen
It please provide organic light emitting display panel and its driving method, organic light-emitting display device.
On the one hand, this application provides a kind of organic light emitting display panels, including substrate, cathode layer on substrate,
Anode layer and the dielectric layer between cathode layer and anode layer;Cathode layer is multiplexed with the first pressure sensitivity electrode, anode layer is multiplexed with
Second pressure sensitivity electrode, anode layer include multiple anode regions, and the first pressure sensitivity electrode, dielectric layer and the second pressure sensitivity electrode are used for feeling of stress
It surveys.
Second aspect, it is above-mentioned organic this application provides a kind of driving method for above-mentioned organic light emitting display panel
Light emitting display panel includes multiple pixel circuits, and pixel circuit includes light emitting control module and initialization module, light emitting control mould
The control terminal of block is connect with LED control signal line, the input terminal of light emitting control module is connect with first voltage power end, is shone
The output end of control module is connect with anode region, and the control terminal of initialization module connect with scan signal line, initialization module
The output end that input terminal connect with pressure sensitivity signal wire, initializes is connect with anode region;Above-mentioned driving method is timesharing driving, including
Display stage and pressure sensitivity touch-control stage: display the stage, control of the light emitting control module based on LED control signal line and be connected,
Pressure sensitivity signal wire transmits reference voltage signal;In the pressure sensitivity stage, control of the light emitting control module based on LED control signal line and
Cut-off, pressure sensitivity signal wire transmit pressure sensitivity driving signal.
The third aspect, this application provides a kind of organic light-emitting display devices, including above-mentioned organic light emitting display panel.
Organic light emitting display panel provided by the present application and its driving method, organic light-emitting display device, by organic light emission
The cathode layer and anode layer of display panel are multiplexed with pressure sensitivity electrode, form pressure sensitive capacitor, can not increase production process
On the basis of realize pressure-sensing, reduce the production cost, reduce the thickness of pressure sensitivity display device.
Detailed description of the invention
Non-limiting embodiment is described in detail referring to made by the following drawings by reading, other features,
Objects and advantages will become more apparent upon:
Fig. 1 is a schematic diagram of the section structure according to the organic light emitting display panel of the application;
Fig. 2 is the anode layer of organic light emitting display panel shown in Fig. 1 and the schematic top plan view that dielectric layer is projected to substrate;
Fig. 3 is the structural schematic diagram according to one embodiment of the pixel circuit of the application;
Fig. 4 is a structural schematic diagram according to the organic light emitting display panel of the application;
Fig. 5 is another structural schematic diagram according to the organic light emitting display panel of the application;
Fig. 6 is another structural schematic diagram according to the organic light emitting display panel of the application;
Fig. 7 is the particular circuit configurations schematic diagram according to one embodiment of the pixel circuit of the application;
Fig. 8 is a working sequence schematic diagram of pixel circuit shown in Fig. 7;
Fig. 9 is a schematic diagram of organic light-emitting display device provided by the present application.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to related invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to FIG. 1, it illustrates a schematic diagram of the section structure according to the organic light emitting display panel of the application.
As shown in Figure 1, organic light emitting display panel 100 includes substrate 10, cathode layer 11, anode layer on substrate 10
12 and the dielectric layer 13 between cathode layer 11 and anode layer 12.Cathode layer 11 is multiplexed with the first pressure sensitivity electrode, anode layer 12
It is multiplexed with the second pressure sensitivity electrode, and anode layer 12 includes multiple anode regions 121.First pressure sensitivity electrode, dielectric layer 13 and second
Pressure sensitivity electrode is used for pressure-sensing.
In the present embodiment, the cathode layer 11 in organic light emitting display panel 100, anode layer 12 and cathode layer 11 and sun
Dielectric layer 13 between pole layer 12 forms pressure-sensing capacitor Cf.When depressed, pressure-sensing capacitor CfIn dielectric layer 13
Thickness change, capacitance changes, can be by pressure-sensing capacitor CfThe variation of capacitance be converted to voltage
The output of the electrical signals such as signal, and then judge whether to be pressurized.
Organic light emitting display panel 100 generally includes organic light emitting display, such as Organic Light Emitting Diode.Cathode layer
11 are used to form the cathode of organic light emitting display, and anode layer 12 is used to form the anode of organic light emitting display.
Organic light emitting display panel 100 can also include thin film transistor (TFT) 110.Thin film transistor (TFT) 110 include source electrode 141,
Drain electrode 142, grid 151 and active layer 161.Wherein source electrode 141 and drain electrode 142 same layers setting.Grid 151 and active layer
161 are located at different film layers.In the present embodiment, the drain electrode 142 of thin film transistor (TFT) 110 is connect with anode layer 12;At it
In his embodiment, the source electrode 141 for being also possible to thin film transistor (TFT) 110 is connect with anode layer 12.
In the above-described embodiments, the cathode layer 11 and anode layer 12 of organic light emitting display panel 100 are multiplexed with first respectively
Pressure sensitivity electrode and the second pressure sensitivity electrode, by cathode layer 11, anode layer 12 and having between cathode layer 11 and anode layer 12
The organic luminescent device that machine luminescent material is formed may be used as at least part of pressure-sensing capacitor.It, can when sensing pressure
To measure the capacitance variations of organic luminescent device, determine whether depressed.As a result, without in organic light emitting display panel
Pressure sensitivity function can be realized in the upper additional film layer structure that increases, and simplifies the manufacture craft of pressure sensitivity display device, reduces and be fabricated to
This.
Specifically, it is assumed that pressure-sensing capacitance is C, can be calculated by such as following formula (1):
Wherein, ε0、εrThe respectively relative dielectric constant of permittivity of vacuum and dielectric layer, S are the first pressure sensitivity electrode and the
The positive area of two pressure sensitivity electrodes, d are thickness of dielectric layers.
Thickness of dielectric layers reduces Δ d after compression, and thickness d when thickness of dielectric layers reduction amount Δ d is not pressurized relative to it is
One lesser value, then pressure-sensing capacitance is that C ' can be calculated by such as following formula (2) after being pressurized:
Then before and after compression capacitor variation delta C are as follows:
Assuming that the elasticity modulus of dielectric layer 12 is E, pressure size when compression is F, then has
It can obtain:
Wherein P is the pressure that pressure-sensing capacitor is subject to, and bringing formula (5) into formula (3) can obtain:
From formula (6) as can be seen that the variation delta C of pressure-sensing capacitor and the elastic modulus E of dielectric layer are inversely proportional.One
In a little embodiments, it can choose the lesser material of elasticity modulus and form dielectric layer, with the variable quantity of adherence pressure sense capacitance, from
And the sensitivity of adherence pressure sensing.Optionally, the elastic modulus E of dielectric layer is less than or equal to 10GPa, in dielectric layer elasticity modulus
The minimum change of pressure-sensing capacitor can be detected when for 10GPa.
In some optional implementations, the thickness of dielectric layer 12 is less than 1.5 μm.According to formula (3) it is found that dielectric layer
Thickness is smaller, and capacitance change Δ C is bigger relative to capacitor C when not being pressurized, then pressure is easier to be detected, the spirit of pressure-sensing
Sensitivity is higher.
In a further embodiment, dielectric layer 13 includes spaced organic luminous zone 131 and pixel definition area
132.Organic luminous zone 131 and pixel definition area 131 have different electrical properties, such as the two can have different dielectrics
Constant.Wherein organic luminous zone 131 includes luminous organic material, such as gallium nitride, zinc sulphide etc., and pixel definition area 132 can be with
Including insulating materials, such as by PI (polyimides), PET (polyethylene terephthalate), PEN (poly- naphthalenedicarboxylic acid ethylene glycol
Ester) etc. formation organic film.When voltage difference between anode layer 12 and cathode layer 11 reaches certain value, luminous organic material by
It is carried out to excitation luminous.
In some embodiments of the present application, organic luminous zone 131 and anode region 121 are arranged in a one-to-one correspondence.Anode region 121
The region area of orthographic projection on the substrate 10 is greater than the area of the orthographic projection of corresponding organic luminous zone 131 on the substrate 10
Domain area.In other words, the orthographic projection 102 of anode region 121 on the substrate 10 can cover corresponding organic luminous zone 131 in substrate
Orthographic projection 101 on 10.Then pressure-sensing capacitor is in addition to including by 11 shape of anode region 121, organic luminous zone 131 and cathode layer
At capacitor except, further include the capacitor formed by anode region 121, partial pixel definition 132 and cathode layer 11.
With further reference to Fig. 2, it illustrates the anode layers of organic light emitting display panel shown in Fig. 1 and dielectric layer to throw to substrate
The schematic top plan view of shadow.
Anode layer 12 includes multiple anode regions 121, orthographic projection of each anode region 121 to substrate 10 combined with Figure 1 and Figure 2,
It is 102, dielectric layer 13 includes organic luminous zone 131 and pixel definition area 132.Orthographic projection of the organic luminous zone 131 to substrate 10
Be 101, pixel definition area 132 to the orthographic projection of substrate 10 be 103.From figure 3, it can be seen that organic luminous zone 131 is to substrate
The orthographic projection 103 of orthographic projection 101 and pixel definition area 132 to substrate is alternatively arranged, i.e. organic luminous zone 131 and pixel definition area
132 are spaced setting in dielectric layer 13.
In another embodiment, the edge of anode region 121 and the positive throwing on the anode layer of corresponding organic luminous zone 131
Minimum range between the edge of shadow is more than or equal to 1 μm.As shown in Fig. 2, orthographic projection 101 from anode region 121 to substrate 10 side
Edge and corresponding organic luminous zone 131 are more than or equal to 1 μ to the minimum range between the edge of the orthographic projection 102 of substrate 10
m.The area of anode region 121 is greater than the area of organic luminous zone 131, can guarantee to be located at different location in organic luminous zone 131
Luminous organic material particle be located in the identical electric field of intensity, guarantee organic luminescent device uniformly light-emitting.
The organic hair being greater than in organic luminous zone 131 due to the coefficient of strain of usual 132 interior insulation material of pixel definition area
The coefficient of strain of luminescent material, in the pressure of compression same size by anode region 121, partial pixel definition 132 and cathode
The variable quantity for the capacitor that layer 11 is formed is greater than the change of the capacitor formed by anode region 121, organic luminous zone 131 and cathode layer 11
Change amount, compared to merely with the capacitor formed by anode region 121, organic luminous zone 131 and cathode layer 11 as pressure-sensing
The scheme of capacitor, organic light emitting display panel provided by this implementation can further increase pressure-sensing capacitor when being pressurized
Capacitance change, to promote pressure sensitivity sensitivity.
In some optional implementations of above-described embodiment, the cathode layer 11 of organic light emitting display panel is flood knot
Structure, projection of the cathode layer 11 to substrate 10 cover projection of each anode region to substrate.Flood structure is conducive to shielded cathode layer
The signal in outside, such as the mutual capacitance formed between finger and anode region or other conductive layers in pressing can be shielded to pressure
The influence of sensing signal, and the cathode resistor of flood structure is lower, is able to bear biggish electric current, guarantees organic light emitting display
Part normal luminous in high current.
Optionally, aforesaid substrate 10 be flexible base board, so as to not additionally increase manufacture craft in the case where soft
Property organic light emitting display on realize pressure-sensing function.
Organic light emitting display panel provided by the embodiments of the present application includes multiple pixel circuits.Pixel circuit includes above-mentioned having
Machine luminescent device, i.e. pixel-driving circuit include above-mentioned pressure-sensing capacitor.Pixel-driving circuit may include a variety of circuit elements
Part, it is luminous for driving organic luminescent device therein to carry out.
Referring to FIG. 3, it illustrates the structural schematic diagrams of one embodiment of pixel circuit according to the present invention.Such as Fig. 3
Shown, pixel-driving circuit 300 includes light emitting control module 31 and the first initialization module 32.Wherein light emitting control module 31
Control terminal is connect with LED control signal line Emit, and the input terminal and first voltage power end PVDD of light emitting control module 31 connect
It connects, the output end of light emitting control module 31 is connect with above-mentioned anode region 121, i.e. the output end of light emitting control module 31 and organic hair
The anode of optical diode D1 connects.The control terminal of first initialization module 32 is connect with scan signal line Scan, the first initialization
The input terminal of module 32 is connect with pressure sensitivity signal wire VREF, and the output end of the first initialization module 32 and above-mentioned anode region 121 connect
It connects, i.e. the output end of the first initialization module 32 is connect with the anode of Organic Light Emitting Diode D1.
In some embodiments, pressure sensitivity signal wire VREF is multiplexed with the reference voltage line of pixel circuit 300.Reference voltage line
Forward direction Organic Light Emitting Diode D1 for shining in Organic Light Emitting Diode D1 provides reference voltage, in actual scene, one
After frame picture is shown, reference voltage, reference can be transmitted to the anode of Organic Light Emitting Diode D1 by reference to pressure-wire
Voltage is low-voltage, Organic Light Emitting Diode can be switched to non-light emitting state from luminance.
In pressure-sensing, the conducting of the first initialization module 32 can be controlled by scan signal line Scan, passes through pressure sensitivity
Signal wire VREF provides pressure sensitivity driving signal to the anode of organic light emitting diode D1.Optionally, pressure sensitivity driving signal can be
Pulse signal.At this moment, if pressing, anode, cathode and the pressure-induced capacitance of dielectric layer formation of Organic Light Emitting Diode D1
CfSize change, in return pulse signal store and discharge the quantity of electric charge change, integrator can be passed through
Read pressure-induced capacitance CfRelease the quantity of electric charge, and then judge whether to be pressurized.
Light emitting control module 31 is used to control Organic Light Emitting Diode D1 in pressure-sensing without shining.In feeling of stress
When survey, LED control signal line Emit provides control signal to light emitting control module 31, so that light emitting control module 31 disconnects, this
When, Organic Light Emitting Diode D1 can not receive the signal of first voltage power end PVDD input, to guarantee in pressure-sensing
Organic Light Emitting Diode D1 is not switched on 3.
Optionally, the cathode of Organic Light Emitting Diode D1 can be connect with second voltage power end PVEE.Second voltage electricity
Source PVEE can provide voltage signal to the cathode of Organic Light Emitting Diode D1.In pressure-sensing, in order to avoid pressure sensitivity letter
Number line VREF be transmitted to Organic Light Emitting Diode D1 signal voltage value it is excessively high so that Organic Light Emitting Diode conducting carry out it is luminous,
A positive voltage signal can be provided to the cathode of Organic Light Emitting Diode D1 by second voltage power end PVEE, to make
The voltage difference at the both ends Organic Light Emitting Diode D1 reduces, and avoiding Organic Light Emitting Diode D1 from shining in pressure-sensing causes to influence
Display effect and pressure sensitivity precision.
Organic light emitting display panel usually may include multiple pixel circuits as described above.Multiple pixel circuits can be in
Array arrangement.Referring to FIG. 4, it illustrates a structural schematic diagrams according to the organic light emitting display panel of the application.
As shown in figure 4, organic light emitting display panel 400 includes multiple pixel circuits 401, wherein each pixel circuit 401
All can be above-mentioned combination Fig. 3 description pixel circuit 300.Multiple pixel circuits 401 are arranged in array.
In embodiments herein, every pressure sensitivity signal wire can connect with the initialization module of at least two pixel circuits
It connects.Specifically, in organic light emitting display panel 400 shown in Fig. 4, every pressure sensitivity signal wire VREF41, VREF42 can be with positions
In not going together and the connection of multiple pixel circuits 401 of different lines, i.e. every pressure sensitivity signal wire VREF41, VREF42 can be located at
It does not go together or is connected with the initialization module in the pixel circuit 401 of different lines.With same pressure sensitivity signal wire VREF41 or
Multiple pixel circuits 401 of VREF42 connection are same group of pixel circuit 41, and same group of pixel circuit 41 receives pressure sensitivity letter simultaneously
Number, it is equivalent to and multiple pixel circuits 401 in same group is formed by pressure-induced capacitance progress parallel connection, then as pressure-sensing
Effective pressure-induced capacitance value is the capacitance after multiple pressure-induced capacitances are in parallel, is connect if pressing occurs with same pressure sensitivity signal wire
Multiple pixel circuits 401 are formed by pressure-induced capacitance value and change, to increase the variation of pressure-induced capacitance to be detected
Amount is conducive to promote pressure sensitivity sensitivity.
Every group of pixel circuit 41 may include a pixel circuit matrix, which may include m row n column picture
Plain circuit, wherein m, n are the positive integer greater than 1.Such as every group of pixel circuit 41 includes the picture element matrix of 2 rows 2 column in Fig. 4, by 4
A pixel circuit is constituted.
In Fig. 4, organic light emitting display panel include a plurality of LED control signal line Emit1, Emit2, Emit3 ..., it is more
Scan signal line Scan41, Scan42, Scan43 ....Every row pixel circuit 401 and a LED control signal line and one
Scan signal line connection.Further, organic light emitting display panel further include a plurality of data signal line VDATA1, VDATA2,
VDATA3, VDATA4 ..., the pixel circuit 401 positioned at same row is connect with same data signal line.In display, data
Signal wire VDATA1, VDATA2, VDATA3, VDATA4 provide data-signal, corresponding picture to the pixel circuit for being located at same row
Organic Light Emitting Diode in plain circuit is under the control of the signal of LED control signal line and scan signal line according to data-signal
Intensity carry out it is luminous.
Optionally, organic light emitting display panel 400 further include a plurality of pressure sensitivity scan line SC41, SC42 ... and multiple open
Close cell S 41, S42, S43 ....Every pressure sensitivity scan line SC41, SC42 ... it is corresponding with one group of pixel circuit 41 respectively, with one
The scan signal line that group pixel circuit 41 connects passes through a switch unit respectively and connect with same pressure sensitivity scan line.Such as scheme
In 4, the scan signal line Scan41 and Scan42 connecting with one group of pixel circuit 41 pass through switch unit S41 respectively and switch is single
First S42 is connect with pressure sensitivity scan line SC41.
In display, each switch unit S41, S42, S43 are in an off state, and each scan signal line successively transmits row scanning
Signal;In pressure-sensing, each switch unit S41, S42, S43 may be on state, at this moment can be scanned by pressure sensitivity
Line SC41, SC42 ... the signal that initialization module is connected to the transmission of corresponding scan signal line is provided by pressure sensitivity signal wire
Pressure sensitivity driving signal will be located at the scan signal line that do not go together and be electrically connected to each other, so that the pixel circuit in same group connects simultaneously
Receive pressure sensitivity driving signal, and detect pressure sensitivity signal wire return signal, so that it is determined that the corresponding position of this group of pixel circuit whether
It is depressed.
With continued reference to Fig. 5 and Fig. 6, it illustrates other two structures of the organic light emitting display panel according to the application to show
It is intended to.
As shown in figure 5, organic light emitting display panel 500 includes multiple pixel circuits 501, each pixel circuit 501 is in array
Arrangement.The initialization module connection for being located at the pixel circuit 501 with a line unlike embodiment illustrated in fig. 4, in Fig. 5 is same
Pressure sensitivity signal wire, such as the initialization module of multiple pixel circuits 501 positioned at the first row connect same pressure sensitivity signal wire
VREF51, the initialization module positioned at the pixel circuit 501 of the second row connect same pressure sensitivity signal wire VREF52, are located at third
The initialization module of capable pixel circuit 501 connects same pressure sensitivity signal wire VREF53.
In organic light emitting display panel 500, each pressure sensitivity signal wire VREF51, VREF52, VREF53 are respectively in pressure-sensing
When to one-row pixels circuit 501 connected to it provide pressure-sensing signal, and each pressure sensitivity signal wire is multiplexed with reference voltage
Line provides reference voltage to one-row pixels circuit 501 connected to it respectively in display.
Compared to embodiment illustrated in fig. 4, organic light emitting display panel 500 shown in Fig. 5 can be based on existing organic light emission
Reference voltage line therein is multiplexed with pressure sensitivity signal wire to realize pressure-sensing, and opened without design by display panel structure
Unit and scan signal line Scan51, Scan52, Scan53 etc. is closed to connect, it only need to be when driving organic light emitting display panel to pressure
Feel signal wire and pressure-sensing signal is provided, and the signal returned is received by pressure sensitivity signal wire, can be detected organic light emitting display
Whether panel 500 is depressed.
As shown in fig. 6, organic light emitting display panel 600 includes multiple pixel circuits 601, each pixel circuit 601 is in array
Arrangement.Unlike embodiment illustrated in fig. 4, each column pixel circuit is a pixel circuit group 61 in Fig. 6, is located at same row
The initialization module of pixel circuit 601 connect same pressure sensitivity signal wire, such as positioned at multiple pixel roads 601 of first row
Initialization module connects same pressure sensitivity signal wire VREF61, positioned at the initialization module connection of the pixel circuit 601 of secondary series
Same pressure sensitivity signal wire VREF62, the initialization module positioned at tertial pixel circuit 601 connect same pressure sensitivity signal
Line VREF63.
Organic light emitting display panel 600 further include a pressure sensitivity scan line SC6 and with scan signal line Scan61,
Scan62, Scan63 ... one-to-one multiple switch cell S 61, S62, S63 ..., every scan signal line Scan61,
Scan62, Scan63 ... it is connect respectively by a switch unit with pressure sensitivity scan line SC6.In display, each switch unit
S61, S62, S63 are in an off state, and each scan signal line successively transmits line scan signals;In pressure-sensing, each switch is single
First S61, S62, S63 are in the conductive state, at this moment can be made by pressure sensitivity scan line SC61 to all scan signal line transmission
Initialization module conducting signal, pass sequentially through pressure sensitivity signal wire VREF61, VREF62, VREF63, VREF64 ... to one group of picture
Plain circuit provides pressure sensitivity driving signal, all scan signal lines is electrically connected to each other, so that the pixel circuit in same group is simultaneously
Receive pressure sensitivity driving signal, and successively detection each group pixel circuit connected pressure sensitivity signal wire VREF61, VREF62,
VREF63, VREF64 ... the signal of return, so that it is determined that depressed position.
It should be noted that Fig. 4 and Fig. 6 schematically show only switch unit S41, S42, S43, S61, S62, S63
Deng structure, in embodiments herein, switch unit S41, S42, S43, S61, S62, S63 ... can also be brilliant for film
Body pipe, the thin film transistor (TFT) can be made with the thin film transistor (TFT) in pixel circuit 300 of the same process, can also be using single
Only process production, it is not limited in the embodiment of the present invention.
Compared to embodiment illustrated in fig. 4, organic light emitting display panel 600 shown in Fig. 6 can be by pressure sensitivity signal wire and data
Signal wire VDATA1, VDATA2, VDATA3, VDATA4 are arranged in parallel, and in production, pressure sensitivity signal wire can be with data signal line
It is made of same mask plate, manufacture craft can be further simplified, reduce cost.
Pixel circuit in above-mentioned fig. 4 to fig. 6 illustrated embodiment all can be pixel circuit 300 shown in Fig. 3.The application
Embodiment additionally provides a kind of driving method, be applied to above-mentioned organic light emitting display panel, for drive above-mentioned pixel circuit into
Row display and pressure-sensing.Driving method is timesharing driving, including display stage and pressure sensitivity touch-control stage.In the display stage, hair
Control of the photocontrol module based on LED control signal line and be connected, pressure sensitivity signal wire transmit reference voltage signal;In pressure sensitivity rank
Section, control of the light emitting control module based on LED control signal line and end, pressure sensitivity signal wire transmit pressure sensitivity driving signal.
Specifically, in the display stage, LED control signal line is to light emitting control module transfer Continuity signal, so that shining
Control module conducting, at this moment Organic Light Emitting Diode D1 is carried out luminous;In the pressure sensitivity stage, LED control signal line is to light emitting control
Module transfer cut-off signals, so that light emitting control module disconnects, at this moment Organic Light Emitting Diode D1 does not shine, to pressure sensitivity signal wire
Pressure sensitivity driving signal is provided, the anode layer 12 that the anode of Organic Light Emitting Diode D1 is located at receives pressure sensitivity driving signal, and feels
Answer pressure-sensing capacitor CfThe pressure sensitivity of return receives signal, receives signal by pressure sensitivity and judges whether to be pressurized.Optionally, pressure sensitivity is driven
Dynamic signal is periodically pulsing signal.
The physical circuit knot of pixel circuit 300 provided by the embodiment of the present application is further described below in conjunction with Fig. 7 to Fig. 9
Structure and its working principle.
Referring to FIG. 7, it illustrates the particular circuit configurations signals according to one embodiment of the pixel circuit of the application
Figure.
As shown in fig. 7, pixel circuit 700 includes the first initialization module 71, the initialization mould of light emitting control module 72, second
Block 73, Data write. module 74 and drive module 75.Wherein, the control terminal and scan signal line of the first initialization module 71
Scan connection, the first initialization module 71 input terminal connect with pressure sensitivity signal wire Vref, the output of the first initialization module 71
End is connect with anode region 121.
The control terminal of light emitting control module 72 connect with LED control signal line, the input terminal of light emitting control module 72 and
One voltage source end connects, the output end of light emitting control module 72 is connect with anode region 121.
The control terminal of second initialization module 73 is connect with first grid signal wire Scan1, the second initialization module 73
Input terminal is connect with pressure sensitivity signal wire Vref, and the output end of the second initialization module 73 is connect with the control terminal of drive module 75.
The control terminal of Data write. module 74 is connect with second grid signal wire Scan2, the input of Data write. module 74
End is connect with data signal line Vdata, and the output end of Data write. module 74 is connect with the input terminal of drive module 75, drives mould
The output end of block 75 is connect with light emitting control module 72.
Specifically, organic light emitting display panel further includes first node N1, second node N2 and third node N3.The
One initialization module 71 includes the first transistor M1, and the grid of the first transistor M1 is connect with scan signal line Scan, and first is brilliant
The first pole of body pipe M1 is connect with pressure sensitivity signal wire Vref, and the second pole of the first transistor M1 is connect with anode region 121.
Second initialization module 73 includes second transistor M2, the grid and first grid signal wire of second transistor M2
First pole of Scan1 connection, second transistor M2 is connect with pressure sensitivity signal wire Vref, the second pole and first of second transistor M2
Node N1 connection.
Data write. module 74 includes third transistor M3, the grid and second grid signal wire of third transistor M3
First pole of Scan2 connection, third transistor M3 is connect with data signal line Vdata, the second pole of third transistor M3 and the
Two node N2 connections.
Drive module 75 includes the 4th transistor M4 and the 5th transistor M5, the grid and second grid of the 4th transistor M4
Signal wire Scan2 connection, the first pole of the 4th transistor M4 are connect with third node N3, the second pole of the 4th transistor M4 and the
One node N1 connection;The grid of 5th transistor M5 is connect with first node, the first pole of the 5th transistor M5 and second node
Second pole of N2 connection, the 5th transistor M5 is connect with third node N5;The both ends of first capacitor Cst are electric with first voltage respectively
Source PVDD is connected with first node N1.
Light emitting control module 72 includes the 6th transistor M6 and the 7th transistor M7, the grid and the 7th of the 6th transistor M6
The grid of transistor M7 is connect with LED control signal line Emit, the first pole of the 6th transistor M6 and first voltage power end
PVDD connection, the second pole of the 6th transistor M6 are connect with second node N2, the first pole of the 7th transistor M7 and third node
N3 connection, the second pole of the 7th transistor M7 are connect with anode region 121.
Pixel circuit 700 can drive as follows: in the display stage, lead first to scan signal line Scan offer
Messenger, provides reference voltage signal to reference voltage line Vref, provides cut-off signals to LED control signal line Emit, shines
Diode D1 receives reference voltage signal, without shining, then provides Continuity signal to first grid signal wire Scan1, to
Reference voltage line Vref provides reference voltage signal, provides cut-off signals to LED control signal line Emit, first node N1's
Voltage is initialised;Backward second grid signal wire Scan2 provide Continuity signal, to scan signal line Scan, first grid
Signal wire Scan1, LED control signal line Emit provide cut-off signals, provide data-signal to data signal line Vdata
Data-signal is written to the input terminal of drive module 75 for VDATA, Data write. module 74, and drive module 75 is to the 5th transistor
The threshold value of M5 compensates;Finally Continuity signal, the 6th transistor M6 and the 7th crystal are provided to LED control signal line Emit
Pipe M7 conducting, first voltage power end PVDD input first voltage power supply signal, export the 5th transistor M5 through overcompensation
Stable leakage current and the anode that Organic Light Emitting Diode D1 is transmitted to by the 7th transistor M7 drive Organic Light Emitting Diode
D1 shines;In the pressure sensitivity stage, cut-off signals are provided to LED control signal line Emit, provide conducting letter to scan signal line Scan
Number, pressure sensitivity driving signal is provided to pressure sensitivity signal wire Vref, pressure sensitivity driving signal is transmitted to organic by the first transistor M1 conducting
The anode layer 12 that the anode of light emitting diode D1 is located at can detecte what the anode of Organic Light Emitting Diode D1 was returned later
Pressure sensitivity receives signal, or directly reads pressure-sensing capacitor C from pressure sensitivity signal wirefThe quantity of electric charge, to judge whether there is pressure
It generates.
With continued reference to Fig. 8, it illustrates a working sequence schematic diagrames of pixel circuit shown in Fig. 7, namely show packet
The driving method schematic illustration of organic light emitting display panel containing pixel circuit shown in Fig. 7.It should be noted that below in conjunction with
In the driving method of the description of working sequence shown in Fig. 8, when the first to the 7th transistor is P-type transistor, following first electricity
Ordinary mail number is low level signal, and following second electrical level signals are high level signal;When the first to the 7th transistor is N-type crystal
Guan Shi, following first level signals are high level signal, and following second electrical level signals are low level signal.
For aspect description, specific work is described in detail so that the first to the 7th transistor is P-type transistor as an example below
Process.As shown in figure 8, the working sequence of pixel circuit 700 includes display stage T1 and pressure sensitivity stage T2.Wherein show stage T1
Including the first initial phase T11, the second initial phase T12, compensated stage T13 and light emitting phase T14.
In the first initial phase T11, to LED control signal line Emit, first grid signal wire Scan1, second grid
Signal wire Scan2 provides the first level signal, second transistor M2, third transistor M3, the 6th transistor M6 and the 7th crystal
Pipe M7 cut-off;Second electrical level signal is provided to scan signal line Scan, provides reference voltage signal to pressure sensitivity signal wire Vref
Reference voltage signal Ref, is transferred to the anode of Organic Light Emitting Diode D1 by Ref, the first transistor M1 conducting.Reference voltage letter
Number Ref is low voltage signal, and the pressure difference at two both ends machine pipe D1 of organic light emission is less than its conducting voltage, and Organic Light Emitting Diode is not sent out
Light.
In the second initial phase T12, to LED control signal line Emit, scan signal line Scan, second grid signal
Line Scan2 provides the first level signal, the first transistor M1, third transistor M3, the 6th transistor M6 and the 7th transistor M7
Cut-off;Second electrical level signal is provided to first grid signal wire Scan1, provides reference voltage signal to pressure sensitivity signal wire Vref
Ref, second transistor M2 conducting, are transferred to first node N1 for reference voltage signal Ref.
In compensated stage T13, to LED control signal line Emit, scan signal line Scan, first grid signal wire Scan1
First level signal, the first transistor M1, second transistor M2, the 6th transistor M6 and the 7th transistor M7 cut-off are provided;To
Second grid signal wire Scan2 provides second electrical level signal, provides data-signal VDATA to data signal line Vdata, third is brilliant
Body pipe M3 conducting, is transferred to second node for data-signal VDATA.First node N1 is kept under the action of first capacitor Cst
The current potential of reference voltage signal Ref, the 5th transistor M5 conducting, the electricity of the second pole (i.e. third node N3) of the 5th transistor M5
Position is VDATA- | Vth |, wherein Vth is the threshold voltage of the 5th transistor M5, the 4th transistor M4 conducting, by third node N3
Current potential be transferred to first node N1, then the grid potential of the 5th transistor M5 maintains VDATA- | Vth |.
In light emitting phase T14, to scan signal line Scan, first grid signal wire Scan1, second grid signal wire
Scan2 provides the first level signal, the first transistor M1, second transistor M2, third transistor M3 cut-off;Believe to light emitting control
Number line Emit provides second electrical level signal, the 6th transistor M6 and the 7th transistor M7 conducting;At this moment, the of the 5th transistor M5
The current potential of one pole (i.e. second node N2) is the first voltage VDD of first voltage power end PVDD input, the 5th transistor M5's
The current potential of grid is VDATA- | Vth |, then the first pole of the 5th transistor M5 and the pressure difference Vsg of grid subtract the 5th transistor M5
Threshold voltage | Vth | be Vsg- | Vth |=VDD- (VDATA- | Vth |)-| Vth |=VDD-VDATA, and the 5th transistor M5
Leakage current and Vsg- | Vth | it is directly proportional, then input the electric current of the 7th transistor M7 not with the threshold voltage of the 5th transistor M5
The variation of Vth and change, stable leakage current is transferred to the anode of Organic Light Emitting Diode D1 by the 7th transistor M7, You Jifa
Optical diode D1 carries out luminous according to leakage current.
In pressure sensitivity stage T2, to luminous signal line Emit, first grid signal wire Scan1, second grid signal wire Scan2
First level signal is provided, provides second electrical level signal to scan signal line Scan, pressure sensitivity is provided to pressure sensitivity signal wire Vref and drives
Dynamic signal F-Trans, the first transistor M1 conducting, are transmitted to Organic Light Emitting Diode D1's for pressure sensitivity driving signal F-Trans
Pressure sensitivity driving signal is also transferred to pressure-sensing capacitor C by anodefThe second pressure sensitivity electrode.Pressure-sensing capacitor CfFirst
Pressure sensitivity electrode is connected to second voltage power end PVEE.One can be provided to second voltage power end PVEE in pressure sensitivity stage T2
The difference of the amplitude of voltage signal, pressure sensitivity driving signal and the voltage signal is less than the conducting voltage of Organic Light Emitting Diode D1.It
The pressure sensitivity that can receive pressure sensitivity signal wire Vref return afterwards receives signal, and then judges whether depressed.Optionally, pressure sensitivity is driven
Dynamic signal F-Trans is cyclic pulse signal.
Organic light emitting display panel provided by the embodiments of the present application and its driving method, by by organic light emitting display panel
Cathode layer, anode layer be multiplexed with the first pressure sensitivity electrode and the second pressure sensitivity electrode, can not additionally increase film layer structure feelings
Pressure sensitive function is realized under condition, simplifies manufacture craft, can reduce cost of manufacture, reduces the thickness of pressure sensitivity display device.
In addition, above-mentioned organic light emitting display panel can be applied in flexible display apparatus, the feeling of stress of flexible display apparatus is realized
It surveys.
The embodiment of the present application also provides a kind of display devices, as shown in figure 9, the display device 900 can be organic hair
Electro-optical display device, such as mobile phone, the organic light emitting display panel including above-described embodiment description.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (16)
1. a kind of organic light emitting display panel, which is characterized in that cathode layer, anode layer including substrate, on the substrate
And the dielectric layer between the cathode layer and anode layer;The dielectric layer includes spaced organic luminous zone;It is described
Cathode layer is multiplexed with the first pressure sensitivity electrode, the anode layer is multiplexed with the second pressure sensitivity electrode, and the anode layer includes multiple anodes
Area, the organic luminous zone are arranged in a one-to-one correspondence with the anode region;The first pressure sensitivity electrode, the dielectric layer and described
Two pressure sensitivity electrodes are used for pressure-sensing.
2. organic light emitting display panel as described in claim 1, which is characterized in that the dielectric layer further includes pixel definition
Area.
3. organic light emitting display panel as claimed in claim 2, which is characterized in that just throwing on the substrate the anode region
The region area of shadow is greater than the region area of corresponding organic luminous zone orthographic projection on the substrate.
4. organic light emitting display panel as claimed in claim 3, which is characterized in that the edge of the anode region and be corresponding to it
Minimum range of the organic luminous zone on the anode layer between the edge of orthographic projection be more than or equal to 1 μm.
5. organic light emitting display panel as described in claim 1, which is characterized in that the elasticity modulus of the dielectric layer be less than etc.
In 10GPa.
6. organic light emitting display panel as described in claim 1, which is characterized in that the thickness of the dielectric layer is less than 1.5 μm.
7. organic light emitting display panel as described in claim 1, which is characterized in that the organic light emitting display panel includes more
A pixel circuit, the pixel circuit include light emitting control module and the first initialization module, the control of the light emitting control module
End processed is connect with LED control signal line, the input terminal of the light emitting control module is connect with first voltage power end, the hair
The output end of photocontrol module is connect with the anode region, and the control terminal and scan signal line of first initialization module connect
It connects, the input terminal of first initialization module is connect with pressure sensitivity signal wire, the output end of first initialization module and institute
State anode region connection.
8. organic light emitting display panel as claimed in claim 7, which is characterized in that every pressure sensitivity signal wire and at least two
The initialization module of a pixel circuit connects.
9. organic light emitting display panel as claimed in claim 8, which is characterized in that positioned at the pixel circuit of same row
Initialization module connects a pressure sensitivity signal wire;Alternatively, the initialization module for being located at the pixel circuit with a line connects
Connect the pressure sensitivity signal wire.
10. organic light emitting display panel as claimed in claim 7, which is characterized in that the pressure sensitivity signal wire is multiplexed with described
The reference voltage line of pixel circuit.
11. organic light emitting display panel as claimed in claim 7, which is characterized in that the organic light emitting display panel is also wrapped
Include the second initialization module, Data write. module and drive module;
The control terminal of second initialization module is connect with first grid signal wire, the input terminal of second initialization module
It is connect with the pressure sensitivity signal wire, the output end of second initialization module is connect with the control terminal of the drive module;
The control terminal of the Data write. module is connect with second grid signal wire, the input terminal and number of the Data write. module
It is connected according to signal wire, the output end of the Data write. module is connect with the input terminal of the drive module;
The output end of the drive module is connect with the light emitting control module.
12. organic light emitting display panel according to claim 11, which is characterized in that the organic light emitting display panel is also
Including first node, second node and third node;
First initialization module includes the first transistor, and the grid of the first transistor and the scan signal line connect
It connects, the first pole of the first transistor is connect with the pressure sensitivity signal wire, the second pole of the first transistor and the sun
Polar region connection;
Second initialization module includes second transistor, the grid of the second transistor and the first grid signal wire
Connection, the first pole of the second transistor connect with the pressure sensitivity signal wire, the second pole of the second transistor with it is described
First node connection;
The Data write. module includes third transistor, and the grid of the third transistor and the second grid signal wire connect
It connects, the first pole of the third transistor is connect with the data signal line, the second pole of the third transistor and described the
The connection of two nodes;
The drive module include the 4th transistor, the 5th transistor and first capacitor, the grid of the 4th transistor with
The second grid signal wire connection, the first pole of the 4th transistor are connect with the third node, the 4th crystal
Second pole of pipe is connect with the first node, and the grid of the 5th transistor is connect with the first node, and the described 5th
First pole of transistor is connect with the second node, and the second pole of the 5th transistor is connect with the third node, institute
The both ends for stating first capacitor are connect with the first voltage power end and the first node respectively;
The light emitting control module includes the 6th transistor and the 7th transistor, the grid and the described 7th of the 6th transistor
The grid of transistor is connect with the LED control signal line, the first pole of the 6th transistor and the first voltage power supply
End connection, the second pole of the 6th transistor connect with the second node, the first pole of the 7th transistor with it is described
The connection of third node, the second pole of the 7th transistor is connect with the anode region.
13. organic light emitting display panel as described in claim 1, which is characterized in that the cathode layer is flood structure.
14. organic light emitting display panel as described in claim 1, which is characterized in that the substrate is flexible base board.
15. a kind of driving method for organic light emitting display panel as described in claim 1, which is characterized in that described to have
Machine light emitting display panel includes multiple pixel circuits, and the pixel circuit includes light emitting control module and the first initialization module,
The control terminal of the light emitting control module connect with LED control signal line, the input terminal of the light emitting control module and the first electricity
Piezoelectricity source connects, the output end of the light emitting control module is connect with the anode region, the control of first initialization module
End processed is connect with scan signal line, the input terminal of first initialization module is connect with pressure sensitivity signal wire, described first initial
The output end for changing module is connect with the anode region;
The driving method is timesharing driving, including display stage and pressure sensitivity touch-control stage:
In the display stage, control of the light emitting control module based on the LED control signal line and be connected, the pressure
Feel signal wire and transmits reference voltage signal;
In the pressure sensitivity stage, control of the light emitting control module based on the LED control signal line and end, the pressure
Feel signal wire and transmits pressure sensitivity driving signal.
16. a kind of organic light-emitting display device, including organic light emitting display panel as described in claim 1.
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CN107193144A (en) * | 2017-04-26 | 2017-09-22 | 武汉华星光电技术有限公司 | LTPS array base paltes and preparation method thereof |
CN107293553B (en) * | 2017-06-19 | 2020-11-24 | 京东方科技集团股份有限公司 | Array substrate, preparation method thereof, display panel and display device |
CN109388273B (en) * | 2017-08-14 | 2020-10-30 | 京东方科技集团股份有限公司 | Touch display panel, driving method thereof and electronic device |
CN107610604B (en) * | 2017-09-25 | 2020-03-17 | 上海九山电子科技有限公司 | LED chip, array substrate, display panel and display device |
CN108829288B (en) * | 2018-06-25 | 2021-05-04 | 广州国显科技有限公司 | Display device and preparation method thereof |
CN110060631B (en) * | 2018-06-27 | 2021-09-03 | 友达光电股份有限公司 | Pixel circuit |
TWI675471B (en) * | 2018-07-18 | 2019-10-21 | 友達光電股份有限公司 | Pixel structure |
CN109166890B (en) * | 2018-08-29 | 2022-04-05 | 云谷(固安)科技有限公司 | Flexible display panel, preparation method thereof and flexible display device |
CN109298801B (en) | 2018-10-19 | 2020-05-12 | 合肥京东方光电科技有限公司 | Touch display device and driving method thereof |
CN113432762B (en) * | 2021-06-24 | 2023-09-29 | 国网天津市电力公司电力科学研究院 | Method for detecting contact pressing force of isolating switch |
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