CN106527791B - Display panel, display device integrated with pressure induction and driving method - Google Patents
Display panel, display device integrated with pressure induction and driving method Download PDFInfo
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- CN106527791B CN106527791B CN201610935803.5A CN201610935803A CN106527791B CN 106527791 B CN106527791 B CN 106527791B CN 201610935803 A CN201610935803 A CN 201610935803A CN 106527791 B CN106527791 B CN 106527791B
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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
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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
- G06F3/0416—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]
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- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Control Of El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the invention discloses a display panel, a display device integrated with pressure induction and a driving method, wherein the display panel comprises: a substrate; a plurality of pixel circuits formed on the substrate, and at least one driving line electrically connected to the plurality of pixel circuits, the at least one driving line being multiplexed as a first pressure detection electrode; the pixel circuit comprises a plurality of pixel circuits, a plurality of first electrodes and a plurality of second electrodes, wherein the plurality of first electrodes are formed on the plurality of pixel circuits, the first electrodes are arranged in one-to-one correspondence with the pixel circuits, and the first electrodes are electrically connected with the corresponding pixel circuits; and the first pressure detection electrode and the second pressure detection electrode are used for detecting the pressure sensed by the display panel. By utilizing the technical scheme of the embodiment of the invention, the thickness of the organic light-emitting display panel with the pressure detection function can be reduced, and the manufacturing cost of the organic light-emitting display panel is reduced.
Description
Technical field
The present embodiments relate to touch-control pressure sensing technologies more particularly to a kind of display panel, integrated pressure to incude
Display device and driving method.
Background technique
Organic light emitting display (Organic light Emitting Display) is not required to backlight, right since it has
Than spending the technological merits such as high, thickness is thin, visual angle is wide, reaction speed is fast, have become one of the emphasis direction of display industry development.
Currently, making it with image display function to further expand the application range of organic light emitting display panel
On the basis of have both touch-control pressure detecting function, additionally increase usually in organic light emitting display panel touch-control pressure detecting dress
It sets.Undoubtedly, the development trend of this thickness that will increase organic light emitting display panel, the slimming of this and display panel is disagreed.Separately
Outer design in this way will increase the cost of manufacture of organic light emitting display panel.
Summary of the invention
The present invention provides the display device and driving method of a kind of display panel, integrated pressure induction, has to be thinned
The thickness of the organic light emitting display panel of pressure detecting function reduces the cost of manufacture of organic light emitting display panel.
In a first aspect, the embodiment of the invention provides a kind of display panel, the display panel, comprising:
Substrate；
Multiple pixel circuits on the substrate are formed, and at least one be electrically connected with the multiple pixel circuit
Line is driven, at least one driving line is multiplexed with first pressure detecting electrode；
The multiple first electrodes being formed on the multiple pixel circuit, the first electrode and the pixel circuit are one by one
It is correspondingly arranged, and the first electrode is electrically connected with corresponding pixel circuit；
The organic luminous layer and second electrode, the second electrode formed on the first electrode is multiplexed with multiple second
Pressure detecting electrode, the first pressure detecting electrode and the second pressure detecting electrode are for detecting the display panel institute
The pressure of impression.
Second aspect, the embodiment of the invention also provides a kind of display device of integrated pressure induction, the integrated pressure senses
The display device answered includes any one display panel provided in an embodiment of the present invention.
The third aspect, the embodiment of the invention also provides a kind of driving methods of display panel, comprising:
The working time section of the display panel is divided into display stage and pressure detecting stage；
The display stage, by applying signal to the first electrode and the second electrode to show a frame picture；
The pressure detecting stage passes through the first pressure detecting electrode and institute in the gap of display consecutive frame picture
It states second pressure detecting electrode and detects the pressure that the display panel is experienced.
Fourth aspect, the embodiment of the invention also provides a kind of driving methods of display panel, comprising:
The working time section of each pixel circuit group includes Data writing time section and pixel light emission period；
In the pixel light emission period, by the first pressure detecting electrode corresponding with the pixel circuit group and
The second pressure detecting electrode detects the pressure that the display panel is experienced.
The embodiment of the present invention is multiplexed with first pressure detecting electrode by the driving line that will be electrically connected with pixel circuit, simultaneously
Second electrode is multiplexed with second pressure detecting electrode, it is true by the change in electric amount between detection driving line and second electrode
Determine touch-control pressure size, solves in existing organic light emitting display panel to realize touch-control pressure detecting function, need volume
Outer increase touch-control pressure-detecting device, so that the problem of thickness of organic light emitting display panel and cost of manufacture increase, realizes
The thickness of the organic light emitting display panel with pressure detecting function is thinned, reduces the cost of manufacture of organic light emitting display panel
Purpose.
Detailed description of the invention
Fig. 1 a is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 1 b is the schematic diagram of the section structure of the A1-A2 along Fig. 1 a；
Fig. 2 is the structural schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 3 is a kind of waveform diagram of voltage on display panel working time section internal reference pressure-wire in Fig. 2；
Fig. 4 a is the circuit diagram of pixel circuit in a kind of existing organic light emitting display panel；
Fig. 4 b be in Fig. 4 a pixel circuit during the work time on SCAN1 and SCAN2 voltage waveform diagram；
Fig. 5 is another waveform diagram of voltage on display panel working time section internal reference pressure-wire in Fig. 2；
Fig. 6 is a kind of structural schematic diagram of the display device of integrated pressure induction provided in an embodiment of the present invention；
Fig. 7 is a kind of flow chart of the driving method of display panel provided in an embodiment of the present invention；
Fig. 8 is a kind of flow chart of the driving method of display panel 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 limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 a is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention.Fig. 1 b is the A1-A2 along Fig. 1 a
The schematic diagram of the section structure.Referring to Fig. 1 a and Fig. 1 b, which includes substrate 10；Form multiple pixels on the substrate 10
Circuit 20, and at least one driving line being electrically connected with multiple pixel circuits 20, at least one driving line are multiplexed with the first pressure
Power detecting electrode 31；The multiple first electrodes 40 being formed on multiple pixel circuits 20, first electrode 40 and pixel circuit 20 1
One is correspondingly arranged, and first electrode 40 is electrically connected with corresponding pixel circuit 20；The organic light emission being formed in first electrode 40
Layer 50 and second electrode 60, second electrode 60 are multiplexed with multiple second pressure detecting electrodes 61,31 He of first pressure detecting electrode
Second pressure detecting electrode 61 is for detecting the pressure that display panel is experienced.
Display panel provided in an embodiment of the present invention is multiplexed with the first pressure by the driving line that will be electrically connected with pixel circuit
Power detecting electrode, while second electrode is multiplexed with second pressure detecting electrode, by between detection driving line and second electrode
Change in electric amount determine touch-control pressure size, solve in existing organic light emitting display panel to realize touch-control pressure
Detection function needs additionally to increase touch-control pressure-detecting device, so that the thickness of organic light emitting display panel and cost of manufacture are equal
The problem of increase, realizes the purpose that the thickness of the organic light emitting display panel with pressure detecting function is thinned.In addition, making
The driving line being electrically connected with pixel circuit, which is multiplexed with first pressure detecting electrode only, during work needs an etching technics, is not necessarily to
Mask plate is made to driving line and first pressure detecting electrode respectively, second electrode is similarly multiplexed with second pressure detection electricity
Pole only needs an etching technics, without making mask plate respectively to second electrode and second pressure induction electrode, can effectively drop
The cost of manufacture of low organic light emitting display panel reduces processing procedure quantity, improves production efficiency.
Optionally, which further includes planarization layer 25 and pixel defining layer 26.Referring to Fig. 1 b, 25 shape of planarization layer
At multiple through-holes 27 on multiple pixel circuits 20, are formed on planarization layer 25, pixel circuit 20 passes through through-hole 27 and first
Electrode 40 is electrically connected.Pixel defining layer 26 is formed on planarization layer 25, is used for first electrode 40 and organic luminous layer 50
It separates to form multiple pixel units.
With continued reference to Fig. 1 a and Fig. 1 b, pixel circuit 20 includes pixel compensation circuit 21 and is electrically connected with pixel compensation circuit
The pixel-driving circuit 22 connect.Driving line is electrically connected with pixel compensation circuit 21, and is multiplexed with first pressure detecting electrode 31.Picture
Plain driving circuit 22 is electrically connected with first electrode 40.
Further, first electrode is anode, and second electrode is cathode.
It should be noted that driving line includes reference voltage line, scan line and data line etc..It, can in specific design
Which kind of driving line is multiplexed with first pressure detection electricity to determine according to the practical connection and working condition of pixel circuit
Pole.Optionally, as shown in Figure 1a, reference voltage line 30 is multiplexed with first pressure detecting electrode 31.
In specific design, there are many distribution methods of reference voltage line, illustratively gives a seed ginseng in fig 1 a
Examine the distribution method of pressure-wire.Referring to Fig. 1 a, pixel circuit 20 is in plurality of rows, and any row pixel circuit 20 is one corresponding
Reference voltage line 30.
Fig. 2 is the structural schematic diagram of another display panel provided in an embodiment of the present invention.It is right in Fig. 2 compared with Fig. 1 a
Pixel circuit is grouped, and the corresponding reference voltage line of each pixel circuit in same group is electrically connected, to be single with group
Position carries out centralized driving to the corresponding reference voltage line of same group of pixel circuit.Specifically, referring to fig. 2, adjacent at least a line
Pixel circuit 20 constitutes a pixel circuit group 23 and (illustratively regard two adjacent row pixel circuits 20 as a picture in Fig. 2
Plain circuit group 23), the interior reference voltage line 30 being electrically connected with each row pixel circuit 20 of the same pixel circuit group 23 is electrically connected each other
It connects, constitutes first induction electrode 31；The reference voltage being electrically connected in different pixels circuit group 23 with each row pixel circuit 20
Line 30 is electrically insulated from each other.
Further, it in order to reduce the number of signal input pin, reduces reference voltage line and pixel circuit lays
Complexity, optionally, as shown in Fig. 2, the reference voltage being electrically connected in the same pixel circuit group 23 with each row pixel circuit 20
Line 30 is electrically connected with the same signal input pin 24.
In Fig. 2, display panel illustratively includes two pixel circuit groups 23,231 He of respectively the first pixel circuit group
Second pixel circuit group 232.Each pixel circuit group 23 is made of two adjacent row pixel circuits 20, this is only the present invention
A specific example, rather than limitation of the present invention.It may include any row in a pixel circuit group in specific design
Pixel circuit.And in same display panel, the line number for the pixel circuit for including in different pixels circuit group can be identical, can also
With difference.It illustratively, include 1-10 row pixel circuit in a pixel circuit group.It should be noted that when a pixel electricity
When road group only includes 1 row pixel circuit, which is equal to the display panel of Fig. 1 a offer.In addition, in practice, using
When this driving method drives display panel, the sensitivity of touch-control pressure detecting depends on pixel in single pixel circuit group
The number of circuit, such as in the application one is in implementation, in order to ensure the sensitivity of touch-control pressure detecting, each pixel
Circuit group may include the pixel circuit of 5-8 row.
Typically, as described in Figure 2, which further includes a plurality of connecting wire 32；The extending direction of connecting wire 32
Intersect with the extending direction of reference voltage line 30；Connecting wire 32 by the same pixel circuit group 23 with each row pixel circuit 20
The reference voltage line 30 of electrical connection is electrically connected to each other, so that connecting wire 32 and reference voltage line 30 collectively form network.
It should be noted that being based on pixel circuit 20 in plurality of rows, any row pixel circuit 20 is right in Fig. 2
A reference voltage line 30 is answered to be grouped with behavior basic unit to the pixel circuit on display panel under the premise of this.
In actual design, pixel circuit 20 can arrange to form array structure, can be with the corresponding reference of either rank pixel circuit 20
Pressure-wire 30, can be with the corresponding reference voltage line 30 of one or several pixel circuits 20 in a row or column.To pixel
When circuit is grouped, can using an at least column pixel circuit 20 as a pixel circuit group, can also at least a line or
Several pixel circuits at least one column are as a pixel circuit group.
When being driven to above-mentioned display panel, can there are many driving method, below with regard to typical driving method into
Row is described in detail.
Fig. 3 is a kind of waveform diagram of voltage on display panel working time section internal reference pressure-wire in Fig. 2.It, should referring to Fig. 3
The working time section of display panel is divided into display stage and pressure detecting stage.
When display panel is in the display stage, by applying signal to first electrode 40 and second electrode 60 to show one
Frame picture.For each pixel circuit 20, which includes Data writing time section and pixel light emission period.?
In Data writing time section, reference voltage signal is transmitted on reference voltage line 30, so that pixel corresponding with the pixel circuit 20
Unit shines.Within the pixel light emission period, data stop write-in, and reference voltage signal is transmitted on reference voltage line 30 or is not passed
Defeated signal, pixel unit continuous illumination corresponding with the pixel circuit 20.
When display panel is in the pressure detecting stage, in the gap of display consecutive frame picture, electricity is detected by first pressure
The pressure that pole and second pressure detecting electrode detection display panel are experienced.Here, pass through first pressure detecting electrode and second
The pressure that pressure detecting electrode detection display panel is experienced is included in first pressure detecting electrode and second pressure detecting electrode
In apply pressure detecting driving signal on any one, according to pressure detecting signal received from another acquisition display surface
The pressure that plate is experienced.Pressure detecting driving signal is specifically as follows pulse signal or constant voltage signal etc..
Below to apply pressure detecting driving signal to first pressure detecting electrode, receives and press from second pressure detecting electrode
For power detects signal, the touch-control pressure detecting principle of the display panel is illustrated.When user touches display surface with finger
When plate, finger gives display panel one pressure for being perpendicularly oriented to the display panel, under the effect of the pressure, in display panel
The distance between first pressure detecting electrode and second pressure detecting electrode change, so that detecting electricity from second pressure
The pressure detecting signal that pole receives changes.Since pressure applied is different in touch display panel by user, 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, shows and transmit reference voltage signal on stage reference pressure-wire, so that with this
The corresponding pixel unit of reference voltage line shines.Pressure detecting stage reference pressure-wire is multiplexed with first pressure detecting electrode, with
Cooperate second pressure detecting electrode, detects the size of touch-control pressure.Because not weighed on display stage and pressure detecting phases-time
It closes, this driving method shows image to be separated with pressure detecting, and current potential is independent of each other, and can either ensure display panel well
It performs image display, and can ensure that display panel can effectively realize touch-control pressure detecting function.It should be noted that due to this
Driving method is not relying on the grouping situation of pixel circuit in display panel, this driving method is equally applicable to pixel circuit not
The display panel of grouping.
Since in existing most organic light emitting display panels, for any pixel circuit, working time section includes number
According to write time section and pixel light emission period.Fig. 4 a is the circuit of pixel circuit in a kind of existing organic light emitting display panel
Figure, Fig. 4 b be in Fig. 4 a pixel circuit during the work time on SCAN1 and SCAN2 voltage waveform diagram.A and Fig. 4 b referring to fig. 4,
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 pixel circuit of defeated reference voltage signal input, so that pixel unit corresponding with reference voltage line Vref shines.And
When pixel circuit was run to the pixel light emission period, since thin film transistor (TFT) M1 and M2 are closed under the control of SCAN1 and SCAN2
It closes, the current potential on reference voltage line Vref can not be input in pixel circuit, therefore the current potential on reference voltage line Vref
Variation can't impact the luminous of pixel unit being 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, in addition to not interfering with pixel list due to the above-mentioned potential change on the pixel light emission stage, reference voltage line
Except the normal luminous of member, due also to, other signal wire (such as data line, scan lines relative to display panel pixel circuit
Deng), reference voltage line Vref sheet as grid-shaped setting planar structure, relative to the signal lead of other arrangement modes,
More sensitive pressure sensitive signal feedback can be obtained, is operated convenient for pressure sensitive.Further, since in panel pixel circuit, ginseng
Examining pressure-wire Vref itself is planar structure and the fixed current potential of the load of one or more pins by being set on panel, energy
Enough applications and reading for more easily carrying out pressure detecting driving signal, thus for other signal leads on panel
Without making excessive change to existing driving chip or data drive circuit, there is lower cost of manufacture.Skill in the art
Art personnel other than it reference voltage line can be multiplexed with first pressure detecting electrode, incite somebody to action it should be understood that for this driving method
What the design that other connecting wires such as scan line or data line etc. are multiplexed with first pressure detecting electrode also can be achieved on, thus
Also within the scope of protection of this application, the embodiment of the present invention is not construed as limiting this.
For pixel circuit group, 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 executing data write-in.When each pixel in the pixel circuit group
When circuit completes data write-in, which was run to the pixel light emission period.Within the pixel light emission period, the picture
The corresponding equal continuous illumination of pixel unit of each pixel circuit in plain circuit group, until pixel circuit all on the display panel is equal
Complete data write-in.Similarly, due to the current potential on pixel light emission period internal reference pressure-wire and be not input to pixel electricity
Road, the potential change on reference voltage line can't cause shadow to the luminous of the pixel unit being electrically connected with the reference voltage line
It rings, can carry out in the pixel light emission period in touch-control pressure detecting.
Fig. 5 is another waveform diagram of voltage on display panel working time section internal reference pressure-wire in Fig. 2.Referring to Fig. 5,
The working time section of pixel circuit group includes Data writing time section and pixel light emission period.In the pixel light emission period, lead to
Cross the pressure that first pressure detecting electrode corresponding with pixel circuit group and second pressure detecting electrode detection display panel are experienced
Power.Here display panel institute is detected by first pressure detecting electrode corresponding with pixel circuit group and second pressure detecting electrode
The pressure of impression includes: constant voltage signal to apply on second pressure detecting electrode as pressure detecting driving signal, according to
Received pressure detecting signal obtains the touch-control pressure that display panel is experienced from first pressure detecting electrode；Alternatively, with
The constant voltage signal applied on one pressure detecting electrode is pressure detecting driving signal, according to from second pressure detecting electrode
Received pressure detecting signal obtains the touch-control pressure that display panel is experienced.
It is aobvious to this by taking row pixel circuit each in display panel is opened line by line from top to bottom as an example below with reference to Fig. 2 and Fig. 5
Show that the course of work of panel is illustrated.
When the first row pixel circuit is opened, the first row pixel circuit receives the reference voltage transmitted on reference voltage line 30
Signal, the first row pixel circuit execute data and are written and the first row pixel unit is shone, at this point, the second row pixel circuit,
The third line pixel circuit and fourth line pixel circuit are turned off, the second row pixel unit, the third line pixel unit and the 4th
Row pixel unit does not shine.First pixel circuit group is in Data writing time section.
When the unlatching of the second row pixel circuit, the first row pixel circuit, the third line pixel circuit and fourth line pixel circuit
It is turned off, the second row pixel circuit receives the reference voltage signal transmitted on reference voltage line 30, and the second row pixel circuit is held
Row data are written and the second row pixel unit are shone.The first row pixel unit continuous illumination.The third line pixel unit and
Four row pixel units do not shine, and the first pixel circuit group is still in Data writing time section.
When the unlatching of the third line pixel circuit, the first row pixel circuit, the second row pixel circuit and fourth line pixel circuit
It is turned off, the third line pixel circuit receives the reference voltage signal transmitted on reference voltage line 30, and the third line pixel circuit is held
Row data are written and the third line pixel unit are shone.The first row pixel unit and the second row pixel unit continuous illumination.The
Four row pixel units do not shine.The first pixel circuit group is in the pixel light emission period at this time, and the second pixel circuit group is in number
According to write time section.Due to changing the voltage signal in the first pixel circuit group on reference voltage line at this time, with the first pixel electricity
Each pixel circuit of road group for pixel unit luminous situation it is unaffected, the first pixel circuit group corresponding first can be passed through
The pressure that pressure detecting electrode and second pressure detecting electrode detection display panel are experienced.
When the unlatching of fourth line pixel circuit, the first row pixel circuit, the second row pixel circuit and the third line pixel circuit
It is turned off, fourth line pixel circuit receives the reference voltage signal transmitted on reference voltage line 30, and fourth line pixel circuit is held
Row data are written and fourth line pixel unit are shone.The first row pixel unit, the second row pixel unit and the third line pixel
Unit continuous illumination.First pixel circuit group is in the pixel light emission period, and the second pixel circuit group is in Data writing time
Section.Similarly, each with the first pixel circuit group due to changing the voltage signal in the first pixel circuit group on reference voltage line at this time
Pixel circuit for pixel unit luminous situation it is unaffected, the corresponding first pressure inspection of the first pixel circuit group can be passed through
Survey the pressure that electrode and second pressure detecting electrode detection display panel are experienced.
When fourth line pixel circuit completes data write-in, this display panel completes the display of a frame image.
Due to the current potential on pixel light emission period internal reference pressure-wire and it is not input to pixel circuit, reference voltage line
On potential change the luminous of the pixel unit being electrically connected with the reference voltage line can't be impacted；Meanwhile relative to
Other signal wires (such as data line, scan line etc.) of display panel pixel circuit, reference voltage line Vref sheet is as grid-shaped
The planar structure of setting can obtain more sensitive pressure sensitive signal feedback relative to the signal lead of other arrangement modes,
Convenient for pressure sensitive operation.Further, since reference voltage line Vref itself is planar structure and passes through in panel pixel circuit
The one or more pins being set on panel load fixed current potential, can more easily carry out applying for pressure detecting driving signal
Adduction is read, thus without to existing driving chip or data drive circuit for other signal leads on panel
Make excessive change, there is lower cost of manufacture.The pixel circuit group pixel light emission period is multiplexed with touching by this driving method
Governor pressure detection time takes full advantage of the time that display panel shows a frame, can effectively shorten and refresh adjacent two frames picture
Time interval, improve user experience.It should be noted that in practice, being driven using this driving method to display panel
When dynamic, the sensitivity of touch-control pressure detecting depends on the number of pixel circuit in single pixel circuit group.
It further, can also include touch sensing in above-mentioned display panel, touch sensing is used to incude touch
Position is shown with integrated touch-control.Setting can make display panel in the function of having display function and touch-control pressure detecting in this way
While have both position of touch detection function, the application scenarios of display panel can be greatly enriched, eliminate user to it
The dependence of his input equipment (such as keyboard and mouse), keeps human-computer interaction more simple.
The present invention implements to additionally provide a kind of display device of integrated pressure induction.Fig. 6 is provided in an embodiment of the present invention
A kind of structural schematic diagram of the display device of integrated pressure induction.Referring to Fig. 6, the display device 101 of integrated pressure induction is wrapped
Containing the display panel 201 provided in above-described embodiment.The display device 101 of integrated pressure induction 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 induction passes through the driving that will be electrically connected with pixel circuit
Line is multiplexed with first pressure detecting electrode, while second electrode is multiplexed with second pressure detecting electrode, drives line by detection
Change in electric amount between second electrode determines touch-control pressure size, solves in existing organic light emitting display panel and is
Realization touch-control pressure detecting function, needs additionally to increase touch-control pressure-detecting device, so that the thickness of organic light emitting display panel
The problem of degree increases with cost of manufacture realizes the thickness that the organic light emitting display panel with pressure detecting function is thinned,
Reduce the purpose of the cost of manufacture of organic light emitting display panel.
The embodiment of the invention also provides a kind of driving methods for being adapted to display panel provided in an embodiment of the present invention.Figure
7 be a kind of flow chart of the driving method of display panel provided in an embodiment of the present invention.No matter each pixel circuit in display panel
Whether it is grouped, which adapts to.Referring to Fig. 7, the working time section of the display panel is divided into display stage and pressure inspection
The survey stage.
S110, display stage, by applying signal to first electrode and second electrode to show a frame picture.
S120, pressure detecting stage are pressed in the gap of display consecutive frame picture by first pressure detecting electrode and second
The pressure that power detecting electrode detection display panel is experienced.
The press packet that display panel is experienced wherein is detected by first pressure detecting electrode and second pressure detecting electrode
It includes: applying pressure detecting driving signal on any one in first pressure detecting electrode and second pressure detecting electrode, according to
Received pressure detecting signal obtains the pressure that display panel is experienced on from another.
In driving method provided in an embodiment of the present invention, shows and transmit reference voltage signal on stage reference pressure-wire, with
Pixel unit corresponding with the reference voltage line is set to shine, pressure detecting stage reference pressure-wire is multiplexed with first pressure detection electricity
The size of touch-control pressure is detected to cooperate second pressure detecting electrode in pole.Because on the stage of display and pressure detecting phases-time
It is not overlapped, this driving method shows image to be separated with pressure detecting, and current potential is independent of each other, and can either ensure to show well
Panel performs image display, and can ensure that display panel can effectively realize touch-control pressure detecting function.In addition, relative to display
Other signal wires (such as data line, scan line etc.) of panel pixel circuit, reference voltage line Vref sheet is as grid-shaped setting
Planar structure can obtain more sensitive pressure sensitive signal feedback relative to the signal lead of other arrangement modes, be convenient for
Pressure sensitive operation.Further, since reference voltage line Vref itself is planar structure and passes through setting in panel pixel circuit
Load fixed current potential in one or more pins on panel, can more easily carry out pressure detecting driving signal application and
It reads, thus without making to existing driving chip or data drive circuit for other signal leads on panel
More changes has lower cost of manufacture.
A kind of driving method for display panel that the embodiment of the present invention also provides.The driving method of this display panel only adapts to
The case where each pixel circuit has been grouped in display panel.Fig. 8 is the drive of another display panel provided in an embodiment of the present invention
The flow chart of dynamic method.Referring to Fig. 8, the working time section of each pixel circuit group includes Data writing time section and pixel light emission
Period.Those skilled in that art are it should be understood that in conjunction with Such analysis it is known that for pixel each in display panel
The driving method of circuit grouping, in a frame time of display picture, when some pixel circuit group is in Data writing time
Duan Shi, other each pixel circuit groups before the pixel circuit group and its later are in the pixel light emission period.
The above embodiment of the present invention the following steps are included:
S210, in Data writing time section, by applying signal to first electrode and second electrode and reference voltage line
So that the corresponding pixel unit of pixel circuit group shines.
S220, in the pixel light emission period, pass through first pressure detecting electrode corresponding with pixel circuit group and the second pressure
The pressure that power detecting electrode detection display panel is experienced.Wherein, electricity is detected by first pressure corresponding with pixel circuit group
The pressure that pole and second pressure detecting electrode detection display panel are experienced includes: the perseverance to apply on second pressure detecting electrode
Determining voltage signal is pressure detecting driving signal, is obtained according to pressure detecting signal received from first pressure detecting electrode aobvious
Show the pressure that panel is experienced.
Due to the current potential on pixel light emission period internal reference pressure-wire and it is not input to pixel circuit, reference voltage line
On potential change the luminous of the pixel unit being electrically connected with the reference voltage line can't be impacted, in addition, relative to
Other signal wires (such as data line, scan line etc.) of display panel pixel circuit, reference voltage line Vref sheet is as grid-shaped
The planar structure of setting can obtain more sensitive pressure sensitive signal feedback relative to the signal lead of other arrangement modes,
Convenient for pressure sensitive operation.Further, since reference voltage line Vref itself is planar structure and passes through in panel pixel circuit
The one or more pins being set on panel load fixed current potential, can more easily carry out applying for pressure detecting driving signal
Adduction is read, thus without to existing driving chip or data drive circuit for other signal leads on panel
Make excessive change, there is lower cost of manufacture.Driving method provided in this embodiment is by sending out pixel circuit group pixel
The light period is multiplexed with the touch-control pressure detecting time, takes full advantage of the time that display panel shows a frame, can effectively shorten
The time interval for refreshing adjacent two frames picture, can be improved user experience.It should be noted that in practice, using this driving
When method drives display panel, the sensitivity of touch-control pressure detecting depends on pixel circuit in single pixel circuit group
Number.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments here, be able to carry out for a person skilled in the art it is various it is apparent variation, again
Adjustment and substitution are without departing from protection scope of the present invention.Therefore, although by above embodiments to the present invention carried out compared with
For detailed description, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, can be with
Including more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (18)
1. a kind of display panel characterized by comprising
Substrate；
Multiple pixel circuits on the substrate are formed, and at least one driving being electrically connected with the multiple pixel circuit
Line, at least one driving line are multiplexed with first pressure detecting electrode；
The multiple first electrodes being formed on the multiple pixel circuit, the first electrode and the pixel circuit correspond
Setting, and the first electrode is electrically connected with corresponding pixel circuit；
The organic luminous layer and second electrode, the second electrode formed on the first electrode is multiplexed with multiple second pressures
Detecting electrode, the first pressure detecting electrode and the second pressure detecting electrode are experienced for detecting the display panel
Pressure；
The pixel circuit includes pixel compensation circuit and the pixel-driving circuit that is electrically connected with the pixel compensation circuit；
The driving line is electrically connected with the pixel compensation circuit, and is multiplexed with the first pressure detecting electrode；
The pixel-driving circuit is electrically connected with the first electrode.
2. display panel according to claim 1, which is characterized in that the driving line includes reference voltage line, the ginseng
It examines pressure-wire and is multiplexed with first pressure detecting electrode.
3. display panel according to claim 2, which is characterized in that the pixel circuit is in plurality of rows, any
The corresponding reference voltage line of the row pixel circuit.
4. display panel according to claim 3, which is characterized in that
Pixel circuit described in adjacent at least a line constitutes a pixel circuit group, in the same pixel circuit group with each row
The reference voltage line of the pixel circuit electrical connection is electrically connected to each other, and constitutes a first pressure detecting electrode；
The reference voltage line being electrically connected in different pixels circuit group with pixel circuit described in each row is electrically insulated from each other.
5. display panel according to claim 4, which is characterized in that in the same pixel circuit group with each row pixel
The reference voltage line of circuit electrical connection is electrically connected with the same signal input pin.
6. display panel according to claim 4, which is characterized in that
It include 1-10 row pixel circuit in one pixel circuit group.
7. display panel according to claim 4, which is characterized in that further include a plurality of connecting wire；
The extending direction of the connecting wire and the extending direction of the reference voltage line intersect；
The reference voltage line that the connecting wire will be electrically connected in the same pixel circuit group with pixel circuit described in each row
It is electrically connected to each other, so that the connecting wire and the reference voltage line collectively form network.
8. -7 any display panel according to claim 1, which is characterized in that the working time section of the display panel point
For display stage and pressure detecting stage；
The display stage, by applying signal to the first electrode and the second electrode to show a frame picture；
The pressure detecting stage passes through the first pressure detecting electrode and described the in the gap of display consecutive frame picture
The pressure that display panel described in two pressure detecting electrode detections is experienced.
9. display panel according to claim 8, which is characterized in that described to pass through the first pressure detecting electrode and institute
It states second pressure detecting electrode and detects the pressure that the display panel is experienced and include:
Apply pressure detecting driving on any one in the first pressure detecting electrode and the second pressure detecting electrode
Signal obtains the pressure that the display panel is experienced according to pressure detecting signal received from another.
10. according to any display panel of claim 4-7, which is characterized in that
The working time section of the pixel circuit group includes Data writing time section and pixel light emission period；
In the pixel light emission period, by the first pressure detecting electrode corresponding with the pixel circuit group and described
Second pressure detecting electrode detects the pressure that the display panel is experienced.
11. display panel according to claim 10, which is characterized in that described by corresponding with the pixel circuit group
The first pressure detecting electrode and the second pressure detecting electrode detect the pressure that the display panel is experienced and include:
Using the constant voltage signal applied on the second pressure detecting electrode as pressure detecting driving signal, according to from described
Received pressure detecting signal obtains the pressure that the display panel is experienced on one pressure detecting electrode.
12. display panel according to claim 1, which is characterized in that it further include touch sensing, the touch sensing
It is shown for incuding the position touched with integrated touch-control.
13. display panel according to claim 1, which is characterized in that further include planarization layer and pixel defining layer；
The planarization layer is formed on the multiple pixel circuit, and multiple through-holes, the picture are formed on the planarization layer
Plain circuit is electrically connected by the through-hole with the first electrode；
The pixel defining layer is formed on the planarization layer, for by the first electrode and the organic luminous layer every
It opens to form multiple pixel units.
14. a kind of display device of integrated pressure induction, which is characterized in that comprising being shown as claim 1-13 is described in any item
Show panel.
15. a kind of driving method for display panel as claimed in claim 1 to 7, which is characterized 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 the first electrode and the second electrode to show a frame picture；
The pressure detecting stage passes through the first pressure detecting electrode and described the in the gap of display consecutive frame picture
The pressure that display panel described in two pressure detecting electrode detections is experienced.
16. the driving method of display panel according to claim 15, which is characterized in that
It is described to be experienced by the first pressure detecting electrode and the second pressure detecting electrode detection display panel
Pressure include:
Apply pressure detecting driving on any one in the first pressure detecting electrode and the second pressure detecting electrode
Signal obtains the pressure that the display panel is experienced according to pressure detecting signal received from another.
17. a kind of driving method for any display panel of claim 4-7, which is characterized in that
The working time section of each pixel circuit group includes Data writing time section and pixel light emission period；
In the pixel light emission period, by the first pressure detecting electrode corresponding with the pixel circuit group and described
Second pressure detecting electrode detects the pressure that the display panel is experienced.
18. the driving method of display panel according to claim 17, which is characterized in that described by electric with the pixel
The corresponding first pressure detecting electrode of road group and the second pressure detecting electrode detect what the display panel was experienced
Pressure includes:
Using the constant voltage signal applied on the second pressure detecting electrode as pressure detecting driving signal, according to from described
Received pressure detecting signal obtains the pressure that the display panel is experienced on one pressure detecting electrode.
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| CN201610935803.5A CN106527791B (en) | 2016-11-01 | 2016-11-01 | Display panel, display device integrated with pressure induction and driving method |
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| CN201610935803.5A CN106527791B (en) | 2016-11-01 | 2016-11-01 | Display panel, display device integrated with pressure induction and driving method |
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| CN106527791B true CN106527791B (en) | 2019-06-25 |
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| CZ2017212A3 (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 |
| CN107621905B (en) * | 2017-09-27 | 2020-11-17 | 厦门天马微电子有限公司 | Display panel and display 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 |
| 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 |
| CN205645814U (en) * | 2016-03-15 | 2016-10-12 | 上海天马微电子有限公司 | Organic light-emitting display panel |
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- 2016-11-01 CN CN201610935803.5A patent/CN106527791B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN205645814U (en) * | 2016-03-15 | 2016-10-12 | 上海天马微电子有限公司 | Organic light-emitting display panel |
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| CN106527791A (en) | 2017-03-22 |
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