CN106527791A - Display panel, integrated pressure induction display device and driving method - Google Patents
Display panel, integrated pressure induction display device and driving method Download PDFInfo
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- CN106527791A CN106527791A CN201610935803.5A CN201610935803A CN106527791A CN 106527791 A CN106527791 A CN 106527791A CN 201610935803 A CN201610935803 A CN 201610935803A CN 106527791 A CN106527791 A CN 106527791A
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- pressure
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- image element
- pressure detecting
- element circuit
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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
-
- 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
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- 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]
Abstract
The embodiment of the invention discloses a display panel, an integrated pressure induction display device and a driving method. The display panel comprises a substrate; multiple pixel circuits formed on the substrate; at least a driving line which is electrically connected with the multiple pixel circuits and is reused as a first pressure induction electrode; multiple first electrodes which are formed on the multiple pixel circuits are arranged in one-to-one correspondence with the pixel circuits and are electrically connected with the corresponding pixel circuits; and organic light-emitting layers and second electrodes formed on the first electrodes. The second electrodes are multiplexed as multiple second pressure detection electrodes; and the first pressure induction electrode and the second pressure detection electrodes are used for detecting a pressure induced by the display panel. By utilizing the technical scheme of the invention, the thickness of the organic light-emitting display panel with a pressure detection function can be reduced, and the manufacturing cost of the organic light-emitting display panel can be lowered.
Description
Technical field
The present embodiments relate to touch-control pressure sensing technologies, more particularly to the sensing of a kind of display floater, integrated pressure
Display device and driving method.
Background technology
Organic light emitting display (Organic light Emitting Display), is not required to backlight, right as which has
Than spending high, thickness of thin, the technological merit such as visual angle is wide, response speed is fast, one of emphasis direction of display industry development is had become.
At present, in order to further expand the range of application of organic electroluminescence display panel so as to image display function
On the basis of have touch-control pressure detecting function concurrently, it is extra generally in organic electroluminescence display panel to increase touch-control pressure detecting dress
Put.Undoubtedly, this will increase the thickness of organic electroluminescence display panel, and this development trend being thinned with display floater is disagreed.Separately
Outer so design can increase the cost of manufacture of organic electroluminescence display panel.
The content of the invention
The present invention provides a kind of display floater, the display device of integrated pressure sensing and driving method, has with thinning
The thickness of the organic electroluminescence display panel of pressure detecting function, reduces the cost of manufacture of organic electroluminescence display panel.
In a first aspect, a kind of display floater is embodiments provided, the display floater, including：
Substrate；
Form multiple image element circuits on the substrate, and at least one electrically connected with the plurality of image element circuit
Drives line, at least one drives line are multiplexed with first pressure induction electrode；
The multiple first electrodes being formed on the plurality of image element circuit, the first electrode is with the image element circuit one by one
It is correspondingly arranged, and the first electrode is electrically connected with corresponding image element circuit；
Organic luminous layer on the first electrode and second electrode are formed, the second electrode is multiplexed with multiple second
Pressure detecting electrode, the first pressure detecting electrode and the second pressure detecting electrode are used to detect the display floater institute
The pressure of impression.
Second aspect, the embodiment of the present invention additionally provide a kind of display device of integrated pressure sensing, the integrated pressure sense
The display device answered includes any one display floater provided in an embodiment of the present invention.
The third aspect, the embodiment of the present invention additionally provide a kind of driving method of display floater, including：
The working time section of the display floater is divided into display stage and pressure detecting stage；
The display stage, by applying signal to show a frame picture to the first electrode and the second electrode；
The pressure detecting stage, in the gap for showing consecutive frame picture, by the first pressure detecting electrode and institute
State the pressure that second pressure detecting electrode detects that the display floater is experienced.
Fourth aspect, the embodiment of the present invention additionally provide a kind of driving method of display floater, including：
The working time section of each image element circuit group includes Data writing time section and pixel light emission time period；
In the pixel light emission time period, by the first pressure sensing electrode corresponding with the image element circuit group and
The second pressure sensing electrode detects the pressure experienced by the display floater.
The embodiment of the present invention by the drives line electrically connected with image element circuit is multiplexed with first pressure induction electrode, while
Second electrode is multiplexed with into second pressure detecting electrode, it is true by detecting the change in electric amount between drives line and second electrode
Determine touch-control pressure size, solve in existing organic electroluminescence display panel to realize touch-control pressure detecting function, need volume
Outer increase touch-control pressure-detecting device so that the problem that the thickness of organic electroluminescence display panel is increased with cost of manufacture, realizes
The thickness of the thinning organic electroluminescence display panel with pressure detecting function, reduces the cost of manufacture of organic electroluminescence display panel
Purpose.
Description of the drawings
Fig. 1 a are a kind of structural representation of display floater provided in an embodiment of the present invention；
Fig. 1 b are the cross-sectional view of the A1-A2 along Fig. 1 a；
Fig. 2 is the structural representation of another kind of display floater provided in an embodiment of the present invention；
A kind of oscillograms of the Fig. 3 for voltage on display floater working time section internal reference pressure-wire in Fig. 2；
Fig. 4 a are the circuit diagram of image element circuit in a kind of existing organic electroluminescence display panel；
Oscillograms of Fig. 4 b for voltage on image element circuit in Fig. 4 a in the course of the work SCAN1 and SCAN2；
Another kind of oscillograms of the Fig. 5 for voltage on display floater working time section internal reference pressure-wire in Fig. 2；
Fig. 6 is a kind of structural representation of the display device of integrated pressure sensing provided in an embodiment of the present invention；
Fig. 7 is a kind of flow chart of the driving method of display floater provided in an embodiment of the present invention；
Fig. 8 is a kind of flow chart of the driving method of display floater provided in an embodiment of the present invention.
Specific embodiment
The present invention 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 the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Fig. 1 a are a kind of structural representation of display floater provided in an embodiment of the present invention.Fig. 1 b are the A1-A2 along Fig. 1 a
Cross-sectional view.Referring to Fig. 1 a and Fig. 1 b, the display floater includes substrate 10；Form multiple pixels on the substrate 10
Circuit 20, and at least one drives line (not shown in Fig. 1 a and Fig. 1 b) electrically connected with multiple image element circuits 20, at least one
Bar drives line is multiplexed with first pressure induction electrode 31；The multiple first electrodes 40 being formed on multiple image element circuits 20, first
Electrode 40 is corresponded with image element circuit 20 and is arranged, and first electrode 40 is electrically connected with corresponding image element circuit 20；It is formed in
Organic luminous layer 50 and second electrode 60 on one electrode 40, second electrode 60 are multiplexed with multiple second pressure detecting electrodes 61,
First pressure detecting electrode 31 and second pressure detecting electrode 61 are used to detect the pressure experienced by display floater.
Display floater provided in an embodiment of the present invention is by being multiplexed with the first pressure by the drives line electrically connected with image element circuit
Power induction electrode, while second electrode is multiplexed with into second pressure detecting electrode, by detecting between drives line and second electrode
Change in electric amount determine touch-control pressure size, solve in existing organic electroluminescence display panel to realize touch-control pressure
Detection function, needs extra increase touch-control pressure-detecting device so that the thickness of organic electroluminescence display panel is equal with cost of manufacture
The problem of increase, realizes the purpose of the thickness of the thinning organic electroluminescence display panel with pressure detecting function.In addition, in system
The drives line electrically connected with image element circuit is multiplexed with first pressure induction electrode during work only needs an etching technics, need not
Mask plate is made respectively to drives line and first pressure induction electrode, second electrode is multiplexed with into second pressure detection electricity similarly
Pole only needs an etching technics, without the need for making mask plate respectively to second electrode and second pressure induction electrode, effectively can drop
The cost of manufacture of low organic electroluminescence display panel, reduces processing procedure quantity, improves production efficiency.
Alternatively, the display floater also includes planarization layer 25 and pixel defining layer 26.Referring to Fig. 1 b, 25 shape of planarization layer
Into multiple through holes 27 on multiple image element circuits 20, are formed with planarization layer 25, image element circuit 20 passes through through hole 27 and first
Electrode 40 is electrically connected.Pixel defining layer 26 is formed on planarization layer 25, for by first electrode 40 and organic luminous layer 50
Separate to form multiple pixel cells.
With continued reference to Fig. 1 a and Fig. 1 b, image element circuit 20 is included pixel compensation circuit 21 and is electrically connected with pixel compensation circuit
The pixel-driving circuit 22 for connecing.Drives line is electrically connected with pixel compensation circuit 21, and is multiplexed with first pressure induction electrode 31.Picture
Plain drive circuit 22 is electrically connected with first electrode 40.
Further, first electrode is anode, and second electrode is negative electrode.
It should be noted that drives line includes reference voltage line, scan line and data wire etc..In specific design, can
Which kind of drives line is multiplexed with into first pressure detection electricity to determine according to the actual connection of image element circuit and working condition
Pole.Alternatively, as shown in Figure 1a, reference voltage line 30 is multiplexed with into first pressure detecting electrode 31.
In specific design, the distribution method of reference voltage line has various, exemplarily gives a seed ginseng in fig 1 a
Examine the distribution method of pressure-wire.Referring to Fig. 1 a, in plurality of rows, any of which row image element circuit 20 is corresponding one for image element circuit 20
Reference voltage line 30.
Fig. 2 is the structural representation of another kind of display floater provided in an embodiment of the present invention.It is compared with Fig. 1 a, right in Fig. 2
Image element circuit is grouped, by the corresponding reference voltage line electrical connection of each image element circuit in same group, so as to group as list
Position carries out centralized driving to the corresponding reference voltage line of same group of image element circuit.Specifically, referring to Fig. 2, adjacent at least a line
Image element circuit 20 constitutes an image element circuit group 23 (exemplarily using two adjacent row image element circuits 20 as a picture in Fig. 2
23), the reference voltage line 30 electrically connected with each row image element circuit 20 in same image element circuit group 23 is electrically connected plain circuit group each other
Connect, constitute first induction electrode 31；The reference voltage electrically connected with each row image element circuit 20 in different pixels circuit group 23
Line 30 is electrically insulated from each other.
Further, in order to reduce the number of signal input pin, reduce reference voltage line and image element circuit lays
Complexity, alternatively, as shown in Fig. 2 the reference voltage electrically connected with each row image element circuit 20 in same image element circuit group 23
Line 30 is electrically connected with same signal input pin 24.
In Fig. 2, display floater exemplarily includes two image element circuit groups 23,231 He of respectively the first image element circuit group
Second image element circuit group 232.Each image element circuit group 23 is constituted by two adjacent row image element circuits 20, and this is only the present invention
A specific example, rather than limitation of the present invention.In specific design, any row in an image element circuit group, can be included
Image element circuit.And in same display floater, the line number of the image element circuit included in different pixels circuit group can also may be used with identical
With difference.Exemplarily, 1-10 row image element circuits are included in an image element circuit group.It should be noted that when a pixel electricity
When road group only includes 1 row image element circuit, the display floater is equal to the display floater of Fig. 1 a offers.Additionally, in practice, adopt
When this driving method is driven to display floater, the sensitivity of touch-control pressure detecting depends on pixel in single pixel circuit group
The number of circuit, such as in one kind of the application is implementation, in order to ensure the sensitivity of touch-control pressure detecting, each pixel
Circuit group can include the image element circuit of 5-8 rows.
Typically, as described in Figure 2, the display floater also includes a plurality of connecting wire 32；The bearing of trend of connecting wire 32
Intersect with the bearing of trend of reference voltage line 30；Connecting wire 32 by same image element circuit group 23 with each row image element circuit 20
The reference voltage line 30 of electrical connection is electrically connected to each other so that connecting wire 32 collectively forms network with reference voltage line 30.
It should be noted that in Fig. 2, being any of which row image element circuit 20 pairs in plurality of rows based on image element circuit 20
Answer a reference voltage line 30 under the premise of this, the image element circuit on display floater is grouped with behavior elementary cell.
In actual design, image element circuit 20 can be with arrangement form array structure, can be with one reference of the correspondence of either rank image element circuit 20
Pressure-wire 30, can with a row or column in one or several image element circuits 20 correspondence one reference voltage line 30.To pixel
When circuit is grouped, can be using at least string image element circuit 20 as an image element circuit group, it is also possible to at least a line or
Several image element circuits at least in string are used as an image element circuit group.
When being driven to above-mentioned display floater, can have various driving methods, below typical driving method is entered
Row is described in detail.
A kind of oscillograms of the Fig. 3 for voltage on display floater working time section internal reference pressure-wire in Fig. 2.Referring to Fig. 3, should
The working time section of display floater is divided into display stage and pressure detecting stage.
When display floater is in the display stage, by applying signal to show one to first electrode 40 and second electrode 60
Frame picture.For each image element circuit 20, the display stage includes Data writing time section and pixel light emission time period.
In Data writing time section, on reference voltage line 30, transmit reference voltage signal so that with the 20 corresponding pixel of image element circuit
Unit lights.Within the pixel light emission time period, data stop write, transmit reference voltage signal or do not pass on reference voltage line 30
Defeated signal, with the 20 corresponding pixel cell continuous illumination of image element circuit.
When display floater is in the pressure detecting stage, in the gap for showing consecutive frame picture, by first pressure detection electricity
The pressure experienced by pole and second pressure detecting electrode detection display floater.Here, by first pressure detecting electrode and second
The pressure experienced by pressure detecting electrode detection display floater is included in first pressure detecting electrode and second pressure detecting electrode
In apply pressure detecting drive signal on any one, according to the pressure detecting signal of the reception from another on obtaining display
The pressure experienced by panel.Pressure detecting drive signal is specifically as follows pulse signal or constant voltage signal etc..
Below to apply pressure detecting drive signal to first pressure detecting electrode, receive from second pressure detecting electrode and press
As a example by power detection signal, the touch-control pressure detecting principle of the display floater is illustrated.When user touches display surface with finger
During plate, finger gives display floater one pressure for being perpendicularly oriented to the display floater, under the effect of the pressure, in display floater
The distance between first pressure detecting electrode and second pressure detecting electrode change, and then cause from second pressure detection electricity
The pressure detecting signal that pole receives changes.Due to user, in touch display panel, pressure applied is different, from the
Pressure detecting signal received by two pressure detecting electrodes is different, therefore can press according to receiving from second pressure detecting electrode
The variable quantity of power detection signal determines the size of touch-control pressure.
Under the driving of this driving method, show stage reference pressure-wire on transmit reference voltage signal so that with this
The corresponding pixel cell of reference voltage line lights.Pressure detecting stage reference pressure-wire is multiplexed with first pressure detecting electrode, with
Coordinate second pressure detecting electrode, detect the size of touch-control pressure.Because not weighing on display stage and pressure detecting phases-time
Close, image being shown and separated with pressure detecting, current potential is independent of each other, display floater can either be guaranteed well for this driving method
Carry out image to show, can ensure that display floater can effectively realize touch-control pressure detecting function again.It should be noted that due to this
Driving method is not relying on the packet situation of image element circuit in display floater, and this driving method is equally applicable to image element circuit not
The display floater of packet.
In due to existing most organic electroluminescence display panels, for any pixel circuit, its working time section includes number
According to write time section and pixel light emission time period.Fig. 4 a are the circuit of image element circuit in a kind of existing organic electroluminescence display panel
Figure, oscillograms of Fig. 4 b for voltage on image element circuit in Fig. 4 a in the course of the work SCAN1 and SCAN2.Referring to Fig. 4 a and Fig. 4 b,
Data writing time section, under the control of SCAN1 and SCAN2, thin film transistor (TFT) M1 and M2 are opened, and reference voltage line Vref is uploaded
In the image element circuit of defeated reference voltage signal input, so that pixel cell corresponding with reference voltage line Vref is luminous.And
When image element circuit was run to the pixel light emission time period, as under the control of SCAN1 and SCAN2, thin film transistor (TFT) M1 and M2 are closed
Close, the current potential on reference voltage line Vref can not be input in image element circuit, therefore refer to the current potential on pressure-wire Vref
Change can't be impacted to the luminous of pixel cell electrically connected with reference voltage line Vref.
It should be noted that the reference voltage line multiplexing in display panel, drive circuit is made a pressure by the embodiment of the present application
Power induction electrode, except in the pixel light emission stage, the potential change on reference voltage line does not interfere with pixel list due to above-mentioned
Unit normal luminous outside, due also to, relative to display panel pixel circuit other holding wires (such as data wire, scan line
Deng), reference voltage line Vref sheets as in latticed setting planar structure, relative to the signal lead of other arrangement modes,
More sensitive pressure sensitive signal feedback can be obtained, is easy to pressure sensitive to operate.Further, since in panel pixel circuit, ginseng
Examine pressure-wire Vref itself to be planar structure and load fixed potential, energy by one or more pins being arranged on panel
Enough applyings and reading for more easily carrying out pressure detecting drive signal, thus for other signal leads on panel
Without the need for making excessive change to existing driving chip or data drive circuit, with relatively low cost of manufacture.Skill in the art
Art personnel are it should be understood that for this driving method, in addition to it reference voltage line can be multiplexed with first pressure detecting electrode, incite somebody to action
Other connecting wires such as scan line or data wire etc. are multiplexed with what the design of first pressure detecting electrode also can be achieved on, thus
Also, within the protection domain of the application, the embodiment of the present invention is not construed as limiting to this.
For image element circuit group, its working time section equally includes that Data writing time section and pixel are given out light the time
Section.In Data writing time section, at least one-row pixels circuit is performing data write.When each pixel in the image element circuit group
When circuit completes data write, the image element circuit group was run to the pixel light emission time period.Within the pixel light emission time period, the picture
The equal continuous illumination of the corresponding pixel cell of each image element circuit in plain circuit group, until all of image element circuit is equal on the display floater
Complete data write.Similarly, due to the current potential on pixel light emission time period internal reference pressure-wire and be not input to pixel electricity
Shadow can't be caused to the luminous of pixel cell electrically connected with the reference voltage line in road, the potential change on reference voltage line
Ring, can carry out in touch-control pressure detecting in the pixel light emission time period.
Another kind of oscillograms of the Fig. 5 for voltage on display floater working time section internal reference pressure-wire in Fig. 2.Referring to Fig. 5,
The working time section of image element circuit group includes Data writing time section and pixel light emission time period.In the pixel light emission time period, lead to
Cross the pressure experienced by first pressure sensing electrode corresponding with image element circuit group and second pressure sensing electrode detection display floater
Power.Here by first pressure sensing electrode corresponding with image element circuit group and second pressure sensing electrode detection display floater institute
The pressure of impression includes：The constant voltage signal applied with second pressure detecting electrode as pressure detecting drive signal, according to
The pressure detecting signal received from first pressure detecting electrode is obtaining the touch-control pressure experienced by display floater；Or, with
The constant voltage signal applied on first pressure detecting electrode is pressure detecting drive signal, according to from second pressure detecting electrode
The pressure detecting signal of upper reception is obtaining the touch-control pressure experienced by display floater.
It is with reference to Fig. 2 and Fig. 5, so that each row image element circuit in display floater is opened from top to bottom line by line as an example, aobvious to this
Show that the course of work of panel is illustrated.
When the first row image element circuit is opened, the first row image element circuit receives the reference voltage transmitted on reference voltage line 30
Signal, the first row image element circuit perform data and write and the first row pixel cell is lighted, now, the second row image element circuit,
The third line image element circuit and fourth line image element circuit are turned off, the second row pixel cell, the third line pixel cell and the 4th
Row pixel cell does not light.First image element circuit group is in Data writing time section.
When the second row image element circuit is opened, the first row image element circuit, the third line image element circuit and fourth line image element circuit
It is turned off, the second row image element circuit receives the reference voltage signal transmitted on reference voltage line 30, the second row image element circuit is held
Row data write and the second row pixel cell are lighted.The first row pixel cell continuous illumination.The third line pixel cell and
Four row pixel cells do not light, and the first image element circuit group is still in Data writing time section.
When the third line image element circuit is opened, the first row image element circuit, the second row image element circuit and fourth line image element circuit
It is turned off, the third line image element circuit receives the reference voltage signal transmitted on reference voltage line 30, the third line image element circuit is held
Row data write and the third line pixel cell are lighted.The first row pixel cell and the second row pixel cell continuous illumination.The
Four row pixel cells do not light.Now the first image element circuit group is in the pixel light emission time period, and the second image element circuit group is in number
According to write time section.Due to now changing the voltage signal in the first image element circuit group on reference voltage line, with the first pixel electricity
The each image element circuit of road group for the luminous situation of pixel cell it is unaffected, the first image element circuit group corresponding first can be passed through
The pressure experienced by pressure detecting electrode and second pressure detecting electrode detection display floater.
When fourth line image element circuit is opened, the first row image element circuit, the second row image element circuit and the third line image element circuit
It is turned off, fourth line image element circuit receives the reference voltage signal transmitted on reference voltage line 30, fourth line image element circuit is held
Row data write and fourth line pixel cell are lighted.The first row pixel cell, the second row pixel cell and the third line pixel
Unit continuous illumination.First image element circuit group is in the pixel light emission time period, and the second image element circuit group is in Data writing time
Section.In the same manner, it is due to now changing the voltage signal in the first image element circuit group on reference voltage line, each with the first image element circuit group
Image element circuit for the luminous situation of pixel cell it is unaffected, can be by the corresponding first pressure inspection of the first image element circuit group
Survey the pressure experienced by electrode and second pressure detecting electrode detection display floater.
When fourth line image element circuit completes data to be write, this display floater completes the display of a two field picture.
Due to the current potential on pixel light emission time period internal reference pressure-wire and image element circuit is not input to, reference voltage line
On potential change the luminous of pixel cell electrically connected with the reference voltage line can't be impacted；Meanwhile, relative to
Other holding wires (such as data wire, scan line etc.) of display panel pixel circuit, reference voltage line Vref sheets are as in latticed
The planar structure of setting, relative to the signal lead of other arrangement modes, can obtain more sensitive pressure sensitive signal feedback,
It is easy to pressure sensitive to operate.Further, since in panel pixel circuit, reference voltage line Vref itself is planar structure and passes through
One or more pins being arranged on panel load fixed potential, can more easily carry out applying for pressure detecting drive signal
Plus and read, thus without the need for existing driving chip or data drive circuit for other signal leads on panel
Make excessive change, with relatively low cost of manufacture.This driving method image element circuit group pixel light emission time period is multiplexed with tactile
Governor pressure detection time, takes full advantage of the time that display floater shows a frame, can effectively shorten the adjacent two frames picture of refreshing
Time interval, improve Consumer's Experience.It should be noted that in practice, display floater is driven using this driving method
When dynamic, the sensitivity of touch-control pressure detecting depends on the number of image element circuit in single pixel circuit group.
Further, touch sensing can also be included in above-mentioned display floater, touch sensing is used to sense what is touched
Position is shown with integrated touch-control.So arrange display floater can be caused in the function of possessing display function and touch-control pressure detecting
While have concurrently position of touch detection function, can greatly enrich the application scenarios of display floater, eliminate user to which
The dependence of his input equipment (such as keyboard and mouse etc.), makes man-machine interaction more simple.
The present invention implements to additionally provide a kind of display device of integrated pressure sensing.Fig. 6 is provided in an embodiment of the present invention
A kind of structural representation of the display device of integrated pressure sensing.Referring to Fig. 6, the display device 101 of the integrated pressure sensing is wrapped
Containing the display floater 201 be given in above-described embodiment.The display device 101 of the integrated pressure sensing is specifically as follows mobile phone, puts down
Plate computer, information enquiry machine of saloon etc..
The display device of integrated pressure provided in an embodiment of the present invention sensing is by the driving that will electrically connect with image element circuit
Line is multiplexed with first pressure induction electrode, while second electrode is multiplexed with into second pressure detecting electrode, by detecting drives line
Change in electric amount and second electrode between determines touch-control pressure size, in solving existing organic electroluminescence display panel is
Touch-control pressure detecting function is realized, needs extra to increase touch-control pressure-detecting device so that the thickness of organic electroluminescence display panel
The problem that degree is increased with cost of manufacture, realizes the thickness of the thinning organic electroluminescence display panel with pressure detecting function,
Reduce the purpose of the cost of manufacture of organic electroluminescence display panel.
The embodiment of the present invention additionally provides a kind of driving method for being adapted to display floater provided in an embodiment of the present invention.Figure
7 is a kind of flow chart of the driving method of display floater provided in an embodiment of the present invention.No matter each image element circuit in display floater
Whether it is grouped, the driving method is adapted to.Referring to Fig. 7, the working time section of the display floater is divided into display stage and pressure inspection
The survey stage.
S110, display stage, by applying signal to show a frame picture to first electrode and second electrode.
S120, pressure detecting stage, in the gap for showing consecutive frame picture, by first pressure detecting electrode and the second pressure
The pressure experienced by power detecting electrode detection display floater.
Wherein pass through the press packet experienced by first pressure detecting electrode and second pressure detecting electrode detection display floater
Include：Apply pressure detecting drive signal on any one in first pressure detecting electrode and second pressure detecting electrode, according to
The pressure detecting signal received from another is obtaining the pressure experienced by display floater.
In driving method provided in an embodiment of the present invention, to show and reference voltage signal is transmitted on stage reference pressure-wire, with
Pixel cell corresponding with the reference voltage line is made to light, pressure detecting stage reference pressure-wire is multiplexed with first pressure detection electricity
Pole, to coordinate second pressure detecting electrode, detects the size of touch-control pressure.Because on the stage of display and pressure detecting phases-time
Misaligned, image is shown and separated with pressure detecting this driving method current potential is independent of each other, and can either guarantee well to show
Panel carries out image and shows, can ensure that display floater can effectively realize touch-control pressure detecting function again.Additionally, relative to display
Other holding wires (such as data wire, scan line etc.) of panel pixel circuit, reference voltage line Vref sheets are as in latticed setting
Planar structure, relative to the signal lead of other arrangement modes, more sensitive pressure sensitive signal feedback can be obtained, be easy to
Pressure sensitive is operated.Further, since in panel pixel circuit, reference voltage line Vref itself is planar structure and by arranging
One or more pins on the panel load fixed potentials, more easily can carry out pressure detecting drive signal applying and
Read, thus without the need for making to existing driving chip or data drive circuit for other signal leads on panel
Many changes, with relatively low cost of manufacture.
A kind of driving method of display floater that the embodiment of the present invention is also provided.The driving method of this display floater is only adapted to
The situation that each image element circuit has been grouped in display floater.Fig. 8 is the drive of another kind of display floater provided in an embodiment of the present invention
The flow chart of dynamic method.Referring to Fig. 8, the working time section of each image element circuit group includes Data writing time section and pixel light emission
Time period.Those skilled in that art are it should be understood that combine Such analysis it is known that for each pixel in display floater
The type of drive of circuit packet, in a frame time of display picture, when some image element circuit group is in Data writing time
Duan Shi, other each image element circuit groups before the image element circuit group and its afterwards are in the pixel light emission time period.
The above embodiment of the present invention is comprised the following steps：
S210, in Data writing time section, by applying signal to first electrode and second electrode and reference voltage line
So that the corresponding pixel cell of image element circuit group is luminous.
S220, in the pixel light emission time period, by first pressure sensing electrode corresponding with image element circuit group and the second pressure
The pressure experienced by power sensing electrode detection display floater.Wherein, by first pressure corresponding with image element circuit group sensing electricity
The pressure experienced by pole and second pressure sensing electrode detection display floater includes：With the perseverance applied on second pressure detecting electrode
Determining voltage signal is pressure detecting drive signal, according to the pressure detecting signal received from first pressure detecting electrode obtaining
The pressure experienced by display floater.
Due to the current potential on pixel light emission time period internal reference pressure-wire and image element circuit is not input to, reference voltage line
On potential change the luminous of pixel cell electrically connected with the reference voltage line can't be impacted, additionally, relative to
Other holding wires (such as data wire, scan line etc.) of display panel pixel circuit, reference voltage line Vref sheets are as in latticed
The planar structure of setting, relative to the signal lead of other arrangement modes, can obtain more sensitive pressure sensitive signal feedback,
It is easy to pressure sensitive to operate.Further, since in panel pixel circuit, reference voltage line Vref itself is planar structure and passes through
One or more pins being arranged on panel load fixed potential, can more easily carry out applying for pressure detecting drive signal
Plus and read, thus without the need for existing driving chip or data drive circuit for other signal leads on panel
Make excessive change, with relatively low cost of manufacture.The driving method that the present embodiment is provided is by image element circuit group pixel is sent out
The light time period is multiplexed with the touch-control pressure detecting time, takes full advantage of the time that display floater shows a frame, effectively can shorten
Refresh the time interval of adjacent two frames picture, Consumer's Experience can be improved.It should be noted that in practice, using this driving
When method is driven to display floater, the sensitivity of touch-control pressure detecting is depending on image element circuit in single pixel circuit group
Number.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment here, various obvious changes, again can be carried out for a person skilled in the art
Adjustment and replacement are without departing from protection scope of the present invention.Therefore, although by above example the present invention has been carried out compared with
For detailed description, but the present invention is not limited only to above example, without departing from the inventive concept, can be with
Including more other Equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (19)
1. a kind of display floater, it is characterised in that include：
Substrate；
Form multiple image element circuits on the substrate, and at least one driving electrically connected with the plurality of image element circuit
Line, at least one drives line are multiplexed with first pressure induction electrode；
The multiple first electrodes being formed on the plurality of image element circuit, the first electrode are corresponded with the image element circuit
Arrange, and the first electrode is electrically connected with corresponding image element circuit；
Organic luminous layer on the first electrode and second electrode are formed, the second electrode is multiplexed with multiple second pressures
Detecting electrode, the first pressure detecting electrode and the second pressure detecting electrode are used to detect that the display floater is experienced
Pressure.
2. display floater according to claim 1, it is characterised in that the image element circuit include pixel compensation circuit and
The pixel-driving circuit electrically connected with the pixel compensation circuit；
The drives line is electrically connected with the pixel compensation circuit, and is multiplexed with the first pressure induction electrode；
The pixel-driving circuit is electrically connected with the first electrode.
3. display floater according to claim 2, it is characterised in that the drives line includes reference voltage line, the ginseng
Examine pressure-wire and be multiplexed with first pressure detecting electrode.
4. display floater according to claim 3, it is characterised in that the image element circuit is in plurality of rows, any of which
Row one reference voltage line of the image element circuit correspondence.
5. display floater according to claim 4, it is characterised in that
One image element circuit group of image element circuit composition described in adjacent at least a line, with each row in the same image element circuit group
The reference voltage line of the image element circuit electrical connection is electrically connected to each other, and constitutes first induction electrode；
The reference voltage line electrically connected with image element circuit described in each row in different pixels circuit group is electrically insulated from each other.
6. display floater according to claim 5, it is characterised in that with each row pixel in the same image element circuit group
The reference voltage line of circuit electrical connection is electrically connected with same signal input pin.
7. display floater according to claim 5, it is characterised in that
Include 1-10 row image element circuits in one image element circuit group.
8. display floater according to claim 5, it is characterised in that also including a plurality of connecting wire；
The bearing of trend of the connecting wire is intersected with the bearing of trend of the reference voltage line；
The reference voltage line that the connecting wire will be electrically connected with image element circuit described in each row in same image element circuit group
It is electrically connected to each other so that the connecting wire collectively forms network with the reference voltage line.
9. according to the arbitrary described display floater of claim 1-8, it is characterised in that the working time section of the display floater point
To show stage and pressure detecting stage；
The display stage, by applying signal to show a frame picture to the first electrode and the second electrode；
The pressure detecting stage, in the gap for showing consecutive frame picture, by the first pressure detecting electrode and described the
The pressure experienced by display floater described in two pressure detecting electrode detection.
10. display floater according to claim 9, it is characterised in that it is described by the first pressure detecting electrode and
The second pressure detecting electrode detects that the pressure experienced by the display floater includes：
Apply pressure detecting driving on any one in the first pressure detecting electrode and the second pressure detecting electrode
Signal, according to the pressure detecting signal received from another obtaining the pressure experienced by the display floater.
11. according to the arbitrary described display floater of claim 5-8, it is characterised in that
The working time section of the image element circuit group includes Data writing time section and pixel light emission time period；
In the pixel light emission time period, by the first pressure sensing electrode corresponding with the image element circuit group and described
Second pressure sensing electrode detects the pressure experienced by the display floater.
12. display floaters according to claim 11, it is characterised in that described by corresponding with the image element circuit group
The first pressure sensing electrode and the second pressure sensing electrode detect that the pressure experienced by the display floater includes：
The constant voltage signal applied with the second pressure detecting electrode as pressure detecting drive signal, according to from described
The pressure detecting signal received on one pressure detecting electrode is obtaining the pressure experienced by the display floater.
13. display floaters according to claim 2, it is characterised in that also including touch sensing, the touch sensing
Shown with integrated touch-control for sensing the position for touching.
14. display floaters according to claim 2, it is characterised in that also including planarization layer and pixel defining layer；
The planarization layer is formed on the plurality of image element circuit, and multiple through holes, the picture are formed with the planarization layer
Plain circuit is electrically connected with the first electrode by the through hole；
The pixel defining layer is formed on the planarization layer, for by the first electrode and the organic luminous layer every
Open to form multiple pixel cells.
15. a kind of display devices of integrated pressure sensing, it is characterised in that comprising aobvious as described in any one of claim 1-14
Show panel.
A kind of 16. driving methods for the arbitrary described display floater of claim 1-10, it is characterised in that the display surface
The working time section of plate is divided into display stage and pressure detecting stage；
The display stage, by applying signal to show a frame picture to the first electrode and the second electrode；
The pressure detecting stage, in the gap for showing consecutive frame picture, by the first pressure detecting electrode and described the
The pressure experienced by display floater described in two pressure detecting electrode detection.
The driving method of 17. display floaters according to claim 16, it is characterised in that
It is described to detect that the display floater is experienced by the first pressure detecting electrode and the second pressure detecting electrode
Pressure include：
Apply pressure detecting driving on any one in the first pressure detecting electrode and the second pressure detecting electrode
Signal, according to the pressure detecting signal received from another obtaining the pressure experienced by the display floater.
A kind of 18. driving methods for the arbitrary described display floater of claim 5-8, it is characterised in that
The working time section of each image element circuit group includes Data writing time section and pixel light emission time period；
In the pixel light emission time period, by the first pressure sensing electrode corresponding with the image element circuit group and described
Second pressure sensing electrode detects the pressure experienced by the display floater.
The driving method of 19. display floaters according to claim 18, it is characterised in that described by electric with the pixel
The corresponding first pressure sensing electrode of road group and the second pressure sensing electrode detect what the display floater was experienced
Pressure includes：
The constant voltage signal applied with the second pressure detecting electrode as pressure detecting drive signal, according to from described
The pressure detecting signal received on one pressure detecting electrode is obtaining the pressure experienced by the display floater.
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| CN201610935803.5A CN106527791B (en) | 2016-11-01 | 2016-11-01 | The display device and driving method that display panel, integrated pressure incude |
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| CN201610935803.5A CN106527791B (en) | 2016-11-01 | 2016-11-01 | The display device and driving method that display panel, integrated pressure incude |
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| CN107621905A (en) * | 2017-09-27 | 2018-01-23 | 厦门天马微电子有限公司 | A kind of display panel and display device |
| CZ307327B6 (en) * | 2017-04-19 | 2018-06-06 | Varroc Lighting Systems, s.r.o. | A device for detecting the error function of a surface light source or a group of OLED sources, in particular for a motor vehicle headlamp or light |
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| CN205563517U (en) * | 2016-03-15 | 2016-09-07 | 深圳市汇顶科技股份有限公司 | Pressure detection structure and touch device |
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| CN102738198A (en) * | 2011-03-29 | 2012-10-17 | 索尼公司 | Display panel, display device and electronic apparatus |
| CN105068695A (en) * | 2015-09-11 | 2015-11-18 | 京东方科技集团股份有限公司 | Touch display panel with pressure detection function, display device and driving method |
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| CN106527791B (en) | 2019-06-25 |
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