CN107393488A - Pixel driving circuit and pixel driving method - Google Patents
Pixel driving circuit and pixel driving method Download PDFInfo
- Publication number
- CN107393488A CN107393488A CN201710765494.6A CN201710765494A CN107393488A CN 107393488 A CN107393488 A CN 107393488A CN 201710765494 A CN201710765494 A CN 201710765494A CN 107393488 A CN107393488 A CN 107393488A
- Authority
- CN
- China
- Prior art keywords
- signal
- switch element
- unit
- electric potential
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 116
- 239000010409 thin film Substances 0.000 claims description 30
- 239000010408 film Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 description 8
- 238000001962 electrophoresis Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000005684 electric field Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Classifications
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/3433—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 by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—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 by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The embodiment of the application discloses a pixel driving circuit and a pixel driving method. The pixel driving circuit comprises a control unit, a transmission unit and a feedback unit; the control unit comprises a first input end and a second input end, wherein the first input end is used for receiving a first signal, and the second input end is used for receiving a control signal; the control unit outputs a first signal to the transmission unit under the control of the control signal; the transmission unit outputs a first potential signal or a second potential signal to the pixel electrode and the feedback unit under the control of the first signal, wherein the polarity of the first potential signal is opposite to that of the second potential signal; the feedback unit outputs a feedback signal to the transmission unit under the control of the first potential signal or the second potential signal. The feedback signal in this embodiment can latch the signal output by the transmission unit to achieve effective supply of the potential required by the pixel electrode, thereby meeting the display requirements.
Description
Technical field
The application is related to display technology field, and in particular to pixel-driving circuit and image element driving method.
Background technology
In recent years, display gradually starts to develop to light, thin direction, and electric paper display, which turns into, meets the one of public demand
Kind display.It has the characteristics that low in energy consumption, picture display is fine and smooth, visible angle is wide.
Electric paper display controls the reflection case of light by the displacement of electric field controls electrophoresis particle, so as to realize
The display of required picture.Because the movement of electrophoresis particle is moved by electric field, Electronic Paper after removing electricity when that can keep longer
Between (such as 1 month).In addition, electric paper display belongs to static diffusing reflection pattern, its display effect is shown very close to real paper.
The structure of existing electric paper display is typically that electrocoating film is formed between pixel electrode and public electrode.This
Sample, d. c. voltage signal is provided to pixel electrode and public electrode respectively, electric field can be formed therebetween, so that electric
Particle of swimming moves, and realizes that picture is shown.Wherein, the circuit for d. c. voltage signal being provided to pixel electrode may refer to Fig. 1, and it shows
The structural representation of existing pixel-driving circuit is gone out.
As shown in figure 1, existing pixel-driving circuit includes Gate ends, SD ends, thin film transistor (TFT) T1 and T2.Wherein, film
Transistor T1 and T2 channel type is identical, such as is P-type TFT or N-type TFT.Thin film transistor (TFT) T1
Source electrode electrically connected by SD ends with data wire.Thin film transistor (TFT) T1 drain electrode and thin film transistor (TFT) T2 source series.It is and thin
Film transistor T2 drain electrode electrically connects with pixel electrode (Pixel).And thin film transistor (TFT) T1 and T2 grid pass through Gate ends
Electrically connected with scan line.
So, can under the control for the scanning drive signal that scan line is transmitted in charging stage, thin film transistor (TFT) T1 and T2
So that the d. c. voltage signal of data line transfer (being usually ± 10V or so) is supplied into pixel electrode, electrophoresis grain is controlled to be formed
The mobile electric field of son.However, in the stage of holding, (i.e. after stopping providing d. c. voltage signal to pixel electrode, electrophoresis particle exists
Continued to move in the presence of the current potential of pixel electrode), influenceed by thin film transistor (TFT) T1 and T2 self-characteristic, pixel can be made electric
The big current potential of pole is gradually reduced, so as to influence the movement of electrophoresis particle.That is, thin film transistor (TFT) T1 and T2 electric leakage show
As that can influence electrophoresis particle and move required current potential, so as to influence display effect.
The content of the invention
In view of drawbacks described above of the prior art, the embodiment of the present application provides a kind of improved pixel-driving circuit and picture
Plain driving method, to solve the technical problem that background section above is mentioned.
In a first aspect, the embodiment of the present application provides a kind of pixel-driving circuit, it is single that the pixel-driving circuit includes control
Member, transmission unit and feedback unit；Control unit includes first input end and the second input, wherein, first input end is used for
The first signal is received, the second input is used to receive control signal；Control unit under control of the control signal, to transmission unit
Export the first signal；Transmission unit exports the first electric potential signal under the control of the first signal, to pixel electrode and feedback unit
Or second electric potential signal, wherein, the opposite polarity of the first electric potential signal and the second electric potential signal；Feedback unit is believed in the first current potential
Number or the control of the second electric potential signal under, to transmission unit output feedback signal.
In certain embodiments, pixel-driving circuit includes data wire and scan line, wherein, data wire is used to transmit first
Signal, scan line are used for transmission of control signals；First input end electrically connects with data wire, and the second input is electrically connected with scan line
Connect, under control of the control signal, the output end of control unit exports the first signal.
In certain embodiments, control unit includes first switch unit and second switch unit, wherein, first switch list
Member and second switch unit are channel type identical thin film transistor (TFT)；The grid of first switch unit and second switch unit is equal
Electrically connected with scan line；The source electrode of first switch unit electrically connects with data wire, the drain electrode of first switch unit and second switch
The source electrode electrical connection of unit, and the drain electrode of second switch unit electrically connects with transmission unit.
In certain embodiments, pixel-driving circuit includes the first signal wire and secondary signal line, is respectively used to transmission
One electric potential signal and the second electric potential signal；Transmission unit includes the 3rd input, the 4th input and the 5th input, and the 3rd is defeated
Enter end to electrically connect with the output end of control unit, the 4th input and the 5th input respectively with the first signal wire and secondary signal
Line electrically connects；Under the control of the first signal, the output end of transmission unit exports the first electric potential signal or the second electric potential signal；Instead
Feedback unit includes the 6th input, the 7th input and the 8th input, and the output end of the 6th input and transmission unit is electrically connected
Connect, the 7th input and the 8th input electrically connect with the first signal wire and secondary signal line respectively；In the first electric potential signal or
Under the control of second electric potential signal, the output end output feedback signal of feedback unit, wherein, feedback signal is the first electric potential signal
Or second electric potential signal, and with the opposite polarity of the signal of transmission unit output.
In certain embodiments, feedback unit includes the 3rd switch element and the 4th switch element, wherein, the 3rd switch is single
Member is the opposite thin film transistor (TFT) of channel type with the 4th switch element；The grid of 3rd switch element and the 4th switch element is equal
Electrically connected with the output end of transmission unit；The source electrode of 3rd switch element and the 4th switch element respectively with the first signal wire and
Binary signal line electrically connects, and the drain electrode of the 3rd switch element and the 4th switch element electrically connects with transmission unit.
In certain embodiments, transmission unit comprises at least the first subelement, and the first subelement includes the 5th switch element
With the 6th switch element, wherein, the 5th switch element and the 6th switch element are the opposite thin film transistor (TFT) of channel type, and the
Five switch elements and the 3rd switch element have identical channel type；The grid of 5th switch element and the 6th switch element is equal
Electrically connected with the output end of control unit；The source electrode of 5th switch element and the 6th switch element respectively with the first signal wire and
Binary signal line electrically connects.
In certain embodiments, sixth input of the drain electrode of the 5th switch element and the 6th switch element with feedback unit
End electrical connection；The drain electrode of 3rd switch element and the 4th switch element electrically connects with the 3rd input of transmission unit.
In certain embodiments, transmission unit also includes the second subelement, the second subelement include the 7th switch element and
8th switch element, wherein, the 7th switch element and the 8th switch element are the opposite thin film transistor (TFT) of channel type, and the 7th opens
Closing unit and the 5th switch element has identical channel type；The grid of 7th switch element and the 8th switch element is with
The drain electrode electrical connection of five switch elements and the 6th switch element；The source electrode of 7th switch element and the 8th switch element is respectively with
The drain with feedback unit the 6th of one signal wire and the electrical connection of secondary signal line, the 7th switch element and the 8th switch element
Input electrically connects.
In certain embodiments, the drain electrode of the 3rd switch element and the 4th switch element with the 7th switch element and the 8th
The grid electrical connection of switch element.
Second aspect, the embodiment of the present application provide a kind of display device of electronic paper, and the display device of electronic paper includes such as
Pixel-driving circuit in first aspect described by any embodiment.
The third aspect, the embodiment of the present application provide a kind of image element driving method, and the image element driving method is used to drive such as
Pixel-driving circuit in first aspect described by any embodiment, the image element driving method include：In the charging stage, respectively to
The first input end of control unit and the second input provide the first signal and control signal, so that control unit is in control signal
Control under, to transmission unit export the first signal；Corresponding signal is provided to transmission unit, so that transmission unit is in the first letter
Number control under, export the first electric potential signal or the second electric potential signal to pixel electrode and feedback unit；There is provided to feedback unit
Corresponding signal, so that feedback unit under the control of the first electric potential signal or the second electric potential signal, exports anti-to transmission unit
Feedback signal；In the stage of holding, the first signal and control signal are cut off, and continues to provide accordingly to transmission unit and feedback unit
Signal so that transmission unit is in the presence of feedback signal, still to pixel electrode and feedback unit export the first electric potential signal or
Second electric potential signal.
In certain embodiments, pixel-driving circuit includes data wire and scan line；It is defeated to the first of control unit respectively
Enter end and the second input provides the first signal and control signal, including：First input end by from data wire to control unit
First signal is provided, and control signal is provided to the second input of control unit by scan line.
In certain embodiments, pixel-driving circuit includes the first signal wire and secondary signal line；There is provided to transmission unit
Corresponding signal, including：By the first signal wire and secondary signal line, the first electric potential signal and the are provided to transmission unit respectively
Two electric potential signals；Corresponding signal is provided to feedback unit, including：By the first signal wire and secondary signal line, respectively to anti-
Present unit and the first electric potential signal and the second electric potential signal are provided.
In certain embodiments, feedback signal is the first electric potential signal or the second electric potential signal, and is exported with transmission unit
Signal opposite polarity.
The pixel-driving circuit and image element driving method that the embodiment of the present application provides, by setting control unit and transmission single
Member, required the first electric potential signal or the second electric potential signal can be provided to pixel electrode, and it is electric to feedback unit output first
Position signal or the second electric potential signal., can be to transmission unit output feedback signal, so as to latch transmission by setting feedback unit
The signal that unit is exported.So, it even if in the stage of holding, can not also be influenceed, be realized by thin film transistor (TFT) self-characteristic
The effective supply of current potential needed for pixel electrode, so as to meet to show current potential demand, to realize that picture is shown.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of existing pixel-driving circuit；
Fig. 2 is a kind of structural representation of the embodiment for the pixel-driving circuit that the application provides；
Fig. 3 is a kind of structural representation of embodiment of control unit；
Fig. 4 is the structural representation of another embodiment for the pixel-driving circuit that the application provides；
Fig. 5 is a kind of structural representation of embodiment of feedback unit；
Fig. 6 is a kind of structural representation of embodiment of transmission unit；
Fig. 7 is the structural representation of another embodiment of the pixel-driving circuit that the application provides；
Fig. 8 is the structural representation of another embodiment of transmission unit；
Fig. 9 is the structural representation of the another embodiment for the pixel-driving circuit that the application provides；
Figure 10 is the emulation data of the pixel-driving circuit that the application provides and existing pixel-driving circuit in the stage of holding
Compares figure；
Figure 11 is a kind of structural representation of the embodiment for the display device of electronic paper that the application provides；
Figure 12 is a kind of cabling schematic diagram of the display device of electronic paper shown in Figure 11；
Figure 13 is a kind of flow chart of the embodiment for the image element driving method that the application provides.
Embodiment
The principle and feature of the application are described in further detail with reference to the accompanying drawings and examples.It is appreciated that
It is that specific embodiment described herein is used only for explaining related invention, rather than the restriction to the invention.Further need exist for
It is bright, for the ease of description, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 2 is referred to, a kind of structural representation of embodiment of the pixel-driving circuit provided it illustrates the application.Such as
Shown in Fig. 2, the pixel-driving circuit can include control unit S1, transmission unit S2 and feedback unit S3.
In the present embodiment, control unit S1 can include first input end A and the second input B.Wherein, the first input
A is held to be used to receive the first signal.Second input B is used to receive control signal.Control unit S1 can be in the control of control signal
Under system, the first signal is exported to transmission unit S2.As shown in Fig. 2 control unit S1 passes through the input D electricity with transmission unit S2
The output end C of connection, the first signal is exported to transmission unit S2.
After transmission unit S2 input D receives the first signal, transmission unit S2 can be in the first signal
Under control, the first electric potential signal or the second electric potential signal are exported to pixel electrode Pixel and feedback unit S3.As shown in Fig. 2 pass
The output end E that defeated cell S 2 is electrically connected by the input F and Pixel with feedback unit S3, it is defeated to feedback unit S3 and Pixel
Go out the first electric potential signal or the second electric potential signal.Wherein, the opposite polarity of the first electric potential signal and the second electric potential signal.
After feedback unit S3 input F receives the first electric potential signal or the second electric potential signal, feedback unit S3
Can be under the control of the first electric potential signal or the second electric potential signal, to transmission unit S2 output feedback signals.As shown in Fig. 2
Feedback unit S3 is by the output end G that is electrically connected with transmission unit S2, to transmission unit S2 output feedback signals.So, transmit
Cell S 2 can at least continue to output identical signal (the first electric potential signal or the second current potential letter under the control of feedback signal
Number), i.e., control loop is formed between transmission unit S2 and feedback unit S3, realized to the transmission unit S2 signals exported
Latch.
Herein, control signal, the first signal and feedback signal can be AC signal or direct current signal, and
The amplitude of each signal is not intended to limit, can be configured according to actual conditions.And the first electric potential signal and the second electric potential signal
It is that pixel shows required direct current signal, generally can is respectively 0~± 15 volts.
The pixel-driving circuit of the present embodiment, by setting control unit and transmission unit, it can be provided to pixel electrode
Required the first electric potential signal or the second electric potential signal, and export the first electric potential signal or the second electric potential signal to feedback unit.
Meanwhile by setting feedback unit, can be to transmission unit output feedback signal, i.e., the shape between transmission unit and feedback unit
Into loop, so as to latch the signal that transmission unit is exported.So, either in the charging stage, or keep the stage, all may be used
Not influenceed by thin film transistor (TFT) self-characteristic, the effective supply of current potential needed for pixel electrode is realized, so as to meet display electricity
Position demand, to realize that picture is shown.
The present embodiment some alternatively in implementation, pixel-driving circuit can include data wire and scan line.
Wherein, data wire is used to transmit the first signal, and scan line is used for transmission of control signals.As shown in Fig. 2 data wire L1 can be with control
The first input end A electrical connections of cell S 1 processed, and scan line L2 can electrically connect with control unit S1 the second input B.This
Sample, in scan line L2 under the control of the second input B control signals transmitted, control unit S1 output end C can be exported
First signal of data wire L1 transmission.
In order to realize said process, as an example, control unit can include first switch unit and second switch unit.
Wherein, first switch unit and second switch unit can be channel type identical thin film transistor (TFT).Specifically it may refer to figure
3, it illustrates a kind of structural representation of embodiment of control unit.
As shown in figure 3, control unit S1 includes first switch unit T1 and second switch unit T2.Herein, for reality
The output of existing first signal, first switch unit T1 and second switch unit T2 can be the p-type film crystal shown in figure
Pipe, can also be N-type TFT.Wherein, first switch unit T1 and second switch unit T2 grid pass through
Two input B electrically connect with scan line.And first switch unit T1 source electrode is electrically connected by first input end A with data wire.
Second switch unit T2 drain electrode is electrically connected by output end C with transmission unit.Meanwhile first switch unit T1 drain electrode and the
Two switch element T2 source electrode electrical connection.
So, when the control signal that scan line is transmitted is low level signal, thin film transistor (TFT) T1, film can be made brilliant
Body pipe T2 source electrode turns on drain electrode, so as to so that the first letter that control unit S1 output end C output data lines are transmitted
Number.It is understood that as long as control signal now meets the threshold value electricity of thin film transistor (TFT) T1 and thin film transistor (TFT) T2 conductings
Pressure.And in order to save the energy, the relatively small thin film transistor (TFT) of threshold voltage can be selected here as thin film transistor (TFT)
T1 and thin film transistor (TFT) T2.
With continued reference to Fig. 4, the structural representation of another embodiment of the pixel-driving circuit provided it illustrates the application
Figure.It is that the pixel-driving circuit in the present embodiment equally includes control unit S1, transmission unit S2 with Fig. 2 embodiment identicals
With feedback unit S3.And control unit S1 first input end A electrically connects with data wire L1, the second input B and scan line L2
Electrical connection, output end C electrically connect with transmission unit S2.Transmission unit S2 output end E and Pixel and feedback unit S3 is electrically connected
Connect.Feedback unit S3 output end G then electrically connects with transmission unit S2.
Unlike Fig. 2 embodiments, pixel-driving circuit in the present embodiment can also include the first signal wire L3 and
Secondary signal line L4, it is respectively used to transmit the first electric potential signal and the second electric potential signal.
Figure 4, it is seen that transmission unit S2 input can include the 3rd input D1, the 4th input D2 and
5th input D3.Wherein, the 3rd input D1 electrically connects with control unit S1 output end C；4th input D2 and the 5th
Input D3 electrically connects with the first signal wire L3 and secondary signal line L4 respectively.So, the first signal exported in output end C
Control under, transmission unit S2 output end E can export the first electric potential signal or the second letter that the first signal wire L3 is transmitted
The second electric potential signal that number line L4 is transmitted, so as to provide the first electric potential signal or the second electric potential signal to Pixel.
In the present embodiment, feedback unit S3 input can also include multiple inputs, such as the 6th input F1, the
Seven input F2 and the 8th input F3.Wherein, the 6th input F1 can electrically connect with transmission unit S2 output end E；The
Seven input F2 and the 8th input F3 electrically connect with the first signal wire L3 and secondary signal line L4 respectively.So, in output end E
Under the control of the first electric potential signal or the second electric potential signal that are exported, feedback unit S3 output end G can export feedback letter
Number.Herein, feedback signal can be the first electric potential signal or the second electric potential signal, and with the pole of the signal of transmission unit output
Property is opposite.Such as output end E outputs be+15 volts the first electric potential signal, then the feedback signal of output end G outputs can be with
It is the second electric potential signal of -15 volts.It is pointed out that the first electric potential signal and the usual (but not limited to) of the second electric potential signal are
Amplitude is identical, opposite polarity level signal.
In the present embodiment, the first electric potential signal and the second electric potential signal both can as the output signal of a certain unit,
The control signal of a certain unit can be multiplexed with again, can so reduce the quantity of electronic component, and then reduces pixel driver electricity
The spatial area taken needed for road, reduce production cost.
Alternatively, in order to realize said process, feedback unit can have structure as shown in Figure 5.In Figure 5, feed back
Cell S 3 can include the 3rd switch element T3 and the 4th switch element T4.Wherein, the switches of the 3rd switch element T3 and the 4th are single
First T4 is the opposite thin film transistor (TFT) of channel type, such as the 3rd switch element T3 is N-type TFT, the 4th switch element
T4 is P-type TFT.Now, the 3rd switch element T3 and the 4th switch element T4 grid can pass through the 6th input
End F1 electrically connects with the output end of transmission unit.3rd switch element T3 source electrode passes through the 7th input F2 and the first signal wire
Electrical connection.4th switch element T4 source electrode is electrically connected by the 8th input F3 with secondary signal line.And the 3rd switch element
T3 and the 4th switch element T4 drain electrode are electrically connected by output end G with transmission unit.
As an example, transmission unit can have structure as shown in Figure 6.In figure 6, transmission unit S2 can be wrapped at least
Include the first subelement.Here the first subelement includes the 5th switch element T5 and the 6th switch element T6.Wherein, the 5th switch
Unit T5 and the 6th switch element T6 are the opposite thin film transistor (TFT) of channel type, and the 5th switch element T5 with the 3rd switch singly
Member has identical channel type.Such as the 3rd switch element be N-type TFT, then the 5th switch element T5 and the 6th
Switch element T6 is respectively N-type and P-type TFT.
As can be seen from Figure 6, the 5th switch element T5 and the 6th switch element T6 grid can pass through the 3rd input D1
Electrically connected with the output end of control unit.And the 5th switch element T5 source electrode pass through the 4th input D2 and the first signal wire electricity
Connection.6th switch element T6 source electrode is electrically connected by the 5th input D3 with secondary signal line.
Alternatively, the 5th switch element T5 and the 6th switch element T6 drain electrode can electrically connect with output end E.Also
It is to say, the 5th switch element T5 and the 6th switch element T6 drain electrode pass through output end E and the 6th input of feedback unit
Electrical connection.Now, in order to realize the latch to the transmission unit S2 signals exported, the 3rd switch element in feedback unit and
The drain electrode of 4th switch element can be electrically connected with transmission unit S2 the 3rd input D1.
Now, the concrete structure of pixel-driving circuit can be as shown in Figure 7.From figure 7 it can be seen that pixel-driving circuit bag
Include control unit S1, transmission unit S2, feedback unit S3, data wire L1, scan line L2, the first signal wire L3 and secondary signal line
L4.Control unit S1, transmission unit S2 can be related to Fig. 5's referring to Fig. 3, Fig. 6 respectively to feedback unit S3 concrete structure
Description, here is omitted.
In the figure 7, second switch unit T2 drain electrode and the 5th switch element T5 grid, the 6th switch element T6 grid
Pole electrically connects.And the 5th switch element T5 and the 6th switch element T6 drain electrode with Pixel, the 3rd switch element T3 grid
Pole, the 4th switch element T4 grid electrical connection.Meanwhile the 3rd switch element T3 and the 4th switch element T4 drain electrode with
The grid electrical connection of five switch element T5 grid, the 6th switch element T6, P points as shown in Figure 7.It is understood that
In order to further save the energy, as long as the first signal here meets the threshold value of thin film transistor (TFT) T5 and thin film transistor (TFT) T6 conductings
Voltage, without with magnitude of voltage so high in the prior art.
Specifically, if the first signal is low level signal, the source electrode and drain electrode that can make the 6th switch element T6 turn on, and pass
Defeated cell S 2 exports the second electric potential signal to Pixel and feedback unit S3 (such as+15 volt DC voltages).And in the second electric potential signal
Control under, the 3rd switch element T3 source electrode can be made to be turned on drain electrode, feedback unit S3 is defeated to transmission unit S2 (i.e. P points)
Go out the first electric potential signal (such as -15 volt DC voltages).So, can under the collective effect of the first signal and the first electric potential signal
To continue to make the 6th switch element T6 to turn on, i.e., transmission unit S2 continues to output the second electric potential signal.
And when control unit S1 no longer exports the first signal, such as in the stage of holding, scan line L2 stops transmission control
Signal, but because the first signal wire L3 continues to transmit the first electric potential signal, secondary signal line L4 continues to transmit the second electric potential signal,
So the loop formed between transmission unit S2 and feedback unit S3 is still present.Now, transmission unit S2 can be in feedback letter
Number control under continue to output the second electric potential signal.Such iterative cycles, so as to realize the second electricity to transmission unit S2 outputs
Position signal is latched.And first electric potential signal provided by the first signal wire L3, the second electric potential signal is carried by secondary signal line L4
For, and it is unrelated with data wire L1, first switch unit T1 and second switch unit T2.So pixel-driving circuit shown in Fig. 7
Now still the first electric potential signal or the second electric potential signal can be exported to Pixel, without by first switch unit T1 and the
The influence of two switch element T2 self-characteristic.So as to ensure the effective supply of Pixel current potentials, meets the needs of showing current potential.
Alternatively, transmission unit can also include the second subelement.As shown in figure 8, transmission unit S2 is except including Fig. 6 institutes
Outside the first subelement shown, in addition to the second subelement.Wherein, the second subelement includes the switches of the 7th switch element T7 and the 8th
Unit T8.Here the 7th switch element T7 and the 8th switch element the T8 thin film transistor (TFT) that to be similarly channel type opposite.And
7th switch element T7 and the 5th switch element T5 have identical channel type.If for example, the 5th switch element T5 is that N-type is thin
Film transistor, then the 7th switch element T7 and the 8th switch element T8 is respectively N-type and P-type TFT.
As shown in Figure 8, leakage of the 7th switch element T7 and the 8th switch element T8 grid with the 5th switch element T5
Pole, the 6th switch element T6 drain electrode electrical connection.And the 7th switch element T7 source electrode also by the 4th input D2 and first
Signal wire electrically connects.8th switch element T8 source electrode electrically connects also by the 5th input D3 with secondary signal line.Meanwhile the
Seven switch element T7 and the 8th switch element T8 drain electrode is electrically connected by output end E with the 6th input of feedback unit.
Now, the concrete structure of pixel-driving circuit can be as shown in Figure 9.It is Fig. 9 with embodiment illustrated in fig. 7 identical
Pixel-driving circuit in illustrated embodiment equally comprising control unit S1, transmission unit S2, feedback unit S3, data wire L1,
Scan line L2, the first signal wire L3 and secondary signal line L4.Control unit S1 and feedback unit S3 concrete structure respectively with Fig. 7
In control unit S1 it is identical with feedback unit S3 structure, here is omitted.
Unlike embodiment illustrated in fig. 7, the 5th switch element T5 and the 6th switch element in embodiment illustrated in fig. 9
Grid, eightth switch element T8 grid of the T6 drain electrode with the 7th switch element T7 electrically connect.And the 7th switch element T7
Grid of the drain electrode with Pixel, the 3rd switch element T3 grid, the 4th switch element T4 with the 8th switch element T8 is electrically connected
Connect.Meanwhile the 3rd switch element T3 and the 4th switch element T4 grid of the drain electrode with the 7th switch element T7, the 8th switch
Unit T8 grid electrical connection, Q points as shown in Figure 9.
Specifically, if the first signal is low level signal, the source electrode and drain electrode that can make the 6th switch element T6 turn on, defeated
Go out the second electric potential signal (such as+15 volt DC voltages).Under the control of the second electric potential signal, it can make the 7th switch element T7's
Source electrode turns on drain electrode, and transmission unit S2 exports the first electric potential signal (such as -15 volt direct currents to Pixel and feedback unit S3
Pressure).And under the control of the first electric potential signal, the source electrode and drain electrode that can make the 4th switch element T4 turn on, feedback unit S3
The second electric potential signal is exported to transmission unit S2 (i.e. Q points).Now, the exported in the 6th switch element T6 and feedback unit S3
In the presence of two electric potential signals, it can continue to turn on the 7th switch element T7, i.e., transmission unit S2 continues to output the first current potential
Signal.Loop equally is formed between transmission unit S2 and feedback unit S3, so as to realize the signal to transmission unit S2 outputs
Latched.So, the first current potential letter even can be still exported to Pixel in the stage of holding, the pixel-driving circuit
Number or the second electric potential signal, without by first switch unit T1, second switch unit T2, the 5th switch element T5 and the 6th
The influence of switch element T6 state.
Further, imitated by the pixel-driving circuit of the pixel-driving circuit to Fig. 9 embodiments and Fig. 1 embodiments
True driving, the emulation data compares figure in the stage of holding shown in Figure 10 is obtained.Wherein, the abscissa in figure represents the time,
Unit is that min (minute) ordinate represents magnitude of voltage, and unit is V (volt or volt).
Specifically, in charging stage, the first signal of from the data wire offer -5V to Fig. 9 embodiments, to scan line offer
Low level control signal, and respectively to the first signal wire and secondary signal line offer -10V the first electric potential signal with+10V's
Second electric potential signal.And the data-signal of from the SD ends offer -10V to Fig. 1, and provide low level control to Gate ends and believe
Number.Now, the pixel-driving circuit in the present embodiment and existing pixel-driving circuit can be to Pixel outputs -10V current potentials
Signal.
In the stage of holding, that is, after cutting off the signal in data wire and scan line, it can be seen from fig. 10 that over time
Passage, the electric potential signal on Pixel electrically connected with existing pixel-driving circuit constantly decline.As shown in P1 in figure, keeping
When stage continues 20min, Pixel current potential falls to approximately -8.75V by -10V.And P1 is similar to oblique line, illustrate Pixel electricity
Position slippage is directly proportional to the retention time, and as the passage of retention time, Pixel current potential also may proceed to decline.
However, over time, the Pixel electrically connected with the pixel-driving circuit in the present embodiment electric potential signal
Decline fluctuation and it is little.As shown in P2 in figure, during the stage of holding continues 20min, when Pixel current potential declines one
After fixed number value, its change tends to be constant.That is P2 is similar to straight line, and average value is about -9.80V.That is, with the retention time
Passage, Pixel current potential is also possible to that -9.8V or so can be maintained at.
From fig. 10 it can be seen that in the stage of holding, the pixel-driving circuit in the present embodiment can make Pixel current potential
Variable quantity is smaller.Illustrate the pixel-driving circuit in Fig. 9 embodiments, can realize in theory picture show needed for current potential it is effective
Supply.It should be noted that the data shown in Figure 10 are only to emulate data.Specific data and actual design demand, select
The factors such as electronic component are relevant, can be by the way that repeatedly experiment obtains repeatedly.
The embodiment of the present application additionally provides a kind of display device of electronic paper, and the display device of electronic paper can include above-mentioned each
Pixel-driving circuit described by embodiment.The display device of electronic paper can be the various electronic equipments with display screen,
Such as Portable e-book or electronic newspaper.As an example, the display device of electronic paper can be the e-book shown in Figure 11.
Under the drive control of the pixel-driving circuit described by the various embodiments described above, the institute of display screen 111 on display device of electronic paper
Region can be with display picture.
Further, in order to realize display control, the inside cabling mode of the display device of electronic paper may refer to Figure 12,
It illustrates a kind of cabling schematic diagram of above-mentioned display device of electronic paper.As shown in figure 12, pixel electrode battle array is provided with device
Row.Wherein, each pixel electrode Pixel in pixel electrode array is electrically connected by pixel-driving circuit and integrated drive electronics IC
Connect.Herein, each data wire L1 can be extended in a first direction, arranged in a second direction.Each scan line L2 can be along second party
To extension, arrange in the first direction.And each scan line L2 is electrically connected by flexible PCB FPC with IC.
As shown in Figure 12, designed for the slimming of device, the first signal wire L3 and secondary signal line L4 can be with data
Line L1 is set with layer.And first signal wire L3 and secondary signal line L4 extend in a first direction, arrange in a second direction.One
In a little application scenarios, the first signal wire and secondary signal line can also (but not limited to) set with scan line with layer.
In addition, in order to reduce the occupancy to IC ports, the first signal wire L3 for being electrically connected with positioned at each Pixel of same row
It can be electrically connected to each other, such as shown in figure, each Pixel positioned at same row electrically connects with the first signal wire of same L3；And
The secondary signal line L4 electrically connected with positioned at each Pixel of same row can be electrically connected to each other, such as shown in Figure 12, positioned at same
Each Pixel of one row electrically connects with same secondary signal line L4.Further, each first signal wire L3 can also mutually be electrically connected
Connect, each secondary signal line L4 is also electrically connected to each other.Now, as shown in figure 12, IC only need to can be with to each by a port
One signal wire L3 provides the first electric potential signal, and provides the second electric potential signal to each secondary signal line L4 by another port.
The embodiment of the present application additionally provides a kind of image element driving method, and the image element driving method can be used for driving above-mentioned each
Pixel-driving circuit described by embodiment.Referring to Figure 13, one kind of the image element driving method provided it illustrates the application is real
Apply the flow chart of example.The image element driving method comprises the following steps：
Step 131, in the charging stage, the first input end to control unit and the second input provide the first signal respectively
And control signal, so that control unit is under control of the control signal, the first signal is exported to transmission unit.
Alternatively, pixel-driving circuit can include data wire and scan line.Now, it is defeated to the first of control unit respectively
Enter end and the second input provides the first signal and control signal, can include：By data wire to the first defeated of control unit
Enter end and the first signal is provided, and control signal is provided to the second input of control unit by scan line.
Step 132, corresponding signal is provided to transmission unit, so that transmission unit is under the control of the first signal, to picture
Plain electrode and feedback unit export the first electric potential signal or the second electric potential signal.Herein, the signal provided to transmission unit
Can be the first electric potential signal or the second electric potential signal or other signals.After transmission unit is handled the signal,
Export the first electric potential signal or the second electric potential signal.
Alternatively, pixel-driving circuit can also include the first signal wire and secondary signal line.Now, carried to transmission unit
For corresponding signal, can include：By the first signal wire and secondary signal line, the first current potential letter is provided to transmission unit respectively
Number and the second electric potential signal.
Step 133, corresponding signal is provided to feedback unit, so that feedback unit is in the first electric potential signal or the second current potential
Under the control of signal, to transmission unit output feedback signal.Herein, to the signal that feedback unit is provided can be with to biography
The signal identical signal or other signals that defeated unit is provided.After feedback unit is handled the signal, output
Feedback signal.
Alternatively, pixel-driving circuit can also include the first signal wire and secondary signal line.Now, carried to feedback unit
For corresponding signal, can include：By the first signal wire and secondary signal line, the first current potential letter is provided to feedback unit respectively
Number and the second electric potential signal.
In application scenes, feedback signal can be the first electric potential signal or the second electric potential signal.And feedback signal
The output of polarity and transmission unit signal opposite polarity.
Step 134, in the stage of holding, the first signal of cut-out and control signal, and continue to transmission unit and feedback unit
Corresponding signal is provided, so that transmission unit in the presence of feedback signal, still exports first to pixel electrode and feedback unit
Electric potential signal or the second electric potential signal.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (14)
1. a kind of pixel-driving circuit, it is characterised in that the pixel-driving circuit includes control unit, transmission unit and feedback
Unit；
Described control unit includes first input end and the second input, wherein, the first input end is used to receive the first letter
Number, second input is used to receive control signal；
Described control unit exports first signal under the control of said control signal, to the transmission unit；
The transmission unit exports the first current potential letter under the control of first signal, to pixel electrode and the feedback unit
Number or the second electric potential signal, wherein, the opposite polarity of first electric potential signal and second electric potential signal；
The feedback unit is defeated to the transmission unit under the control of first electric potential signal or second electric potential signal
Go out feedback signal.
2. pixel-driving circuit according to claim 1, it is characterised in that the pixel-driving circuit include data wire and
Scan line, wherein, the data wire is used to transmit first signal, and the scan line is used to transmit the control signal；
The first input end electrically connects with the data wire, and second input electrically connects with the scan line, described
Under the control of control signal, the output end of described control unit exports first signal.
3. pixel-driving circuit according to claim 2, it is characterised in that described control unit includes first switch unit
With second switch unit, wherein, the first switch unit and the second switch unit are that channel type identical film is brilliant
Body pipe；
The grid of the first switch unit and the second switch unit electrically connects with the scan line；
The source electrode of the first switch unit electrically connects with the data wire, the drain electrode of the first switch unit and described second
The source electrode electrical connection of switch element, and the drain electrode of the second switch unit electrically connects with the transmission unit.
4. according to the pixel-driving circuit described in one of claim 1-3, it is characterised in that the pixel-driving circuit includes the
One signal wire and secondary signal line, it is respectively used to transmit first electric potential signal and second electric potential signal；
The transmission unit includes the 3rd input, the 4th input and the 5th input, the 3rd input and the control
The output end electrical connection of unit processed, the 4th input and the 5th input respectively with first signal wire and described
Secondary signal line electrically connects；
Under the control of first signal, the output end of the transmission unit exports first electric potential signal or described second
Electric potential signal；
The feedback unit includes the 6th input, the 7th input and the 8th input, the 6th input and the biography
The output end electrical connection of defeated unit, the 7th input and the 8th input respectively with first signal wire and described
Secondary signal line electrically connects；
Under the control of first electric potential signal or second electric potential signal, described in the output end output of the feedback unit
Feedback signal, wherein, the feedback signal is first electric potential signal or second electric potential signal, and single with the transmission
The opposite polarity of the signal of member output.
5. pixel-driving circuit according to claim 4, it is characterised in that the feedback unit includes the 3rd switch element
With the 4th switch element, wherein, the 3rd switch element and the 4th switch element be channel type it is opposite film it is brilliant
Body pipe；
Output end of the grid of 3rd switch element and the 4th switch element with the transmission unit electrically connects；
The source electrode of 3rd switch element and the 4th switch element is believed with first signal wire and described second respectively
The electrical connection of number line, the drain electrode of the 3rd switch element and the 4th switch element electrically connect with the transmission unit.
6. pixel-driving circuit according to claim 5, it is characterised in that it is single that the transmission unit comprises at least the first son
Member, first subelement include the 5th switch element and the 6th switch element, wherein, the 5th switch element and described the
Six switch elements are the opposite thin film transistor (TFT) of channel type, and the 5th switch element has with the 3rd switch element
Identical channel type；
The grid of 5th switch element and the 6th switch element electrically connects with the output end of described control unit；
The source electrode of 5th switch element and the 6th switch element is believed with first signal wire and described second respectively
The electrical connection of number line.
7. pixel-driving circuit according to claim 6, it is characterised in that the 5th switch element and the described 6th is opened
The drain electrode for closing unit electrically connects with the 6th input of the feedback unit；
Threeth input of the drain electrode of 3rd switch element and the 4th switch element with the transmission unit is electrically connected
Connect.
8. pixel-driving circuit according to claim 6, it is characterised in that it is single that the transmission unit also includes the second son
Member, second subelement include the 7th switch element and the 8th switch element, wherein, the 7th switch element and described the
Eight switch elements are the opposite thin film transistor (TFT) of channel type, and the 7th switch element has phase with the 5th switch element
Same channel type；
The grid of 7th switch element and the 8th switch element is opened with the 5th switch element and the described 6th
Close the drain electrode electrical connection of unit；
The source electrode of 7th switch element and the 8th switch element is believed with first signal wire and described second respectively
Sixth input of the drain electrode of the electrical connection of number line, the 7th switch element and the 8th switch element with the feedback unit
End electrical connection.
9. pixel-driving circuit according to claim 8, it is characterised in that the 3rd switch element and the described 4th is opened
Grid of the drain electrode of unit with the 7th switch element and the 8th switch element is closed to electrically connect.
10. a kind of display device of electronic paper, it is characterised in that the display device of electronic paper is included such as one of claim 1-9
Described pixel-driving circuit.
11. a kind of image element driving method, it is characterised in that the image element driving method is used to drive such as one of claim 1-9
Described pixel-driving circuit, the image element driving method include：In the charging stage, respectively to the first input end of control unit
The first signal and control signal are provided with the second input, so that described control unit is under the control of said control signal, to
Transmission unit exports first signal；
Corresponding signal is provided to the transmission unit, so that the transmission unit is under the control of first signal, to picture
Plain electrode and feedback unit export the first electric potential signal or the second electric potential signal；
Corresponding signal is provided to the feedback unit, so that the feedback unit is in first electric potential signal or described second
Under the control of electric potential signal, to the transmission unit output feedback signal；
In the stage of holding, first signal and the control signal are cut off, and continue to the transmission unit and the feedback
Unit provides corresponding signal so that the transmission unit is in the presence of the feedback signal, still to the pixel electrode and
The feedback unit exports first electric potential signal or second electric potential signal.
12. image element driving method according to claim 11, it is characterised in that the pixel-driving circuit includes data wire
And scan line；
The first input end to control unit respectively and the second input provide the first signal and control signal, including：
The first signal is provided to the first input end of control unit by the data wire, and by the scan line to the control
Second input of unit processed provides control signal.
13. the image element driving method according to claim 11 or 12, it is characterised in that the pixel-driving circuit includes the
One signal wire and secondary signal line；
It is described to provide corresponding signal to the transmission unit, including：
By first signal wire and the secondary signal line, the first electric potential signal and the are provided to the transmission unit respectively
Two electric potential signals；
It is described to provide corresponding signal to the feedback unit, including：
By first signal wire and the secondary signal line, the first electric potential signal and the are provided to the feedback unit respectively
Two electric potential signals.
14. image element driving method according to claim 13, it is characterised in that the feedback signal is first current potential
Signal or second electric potential signal, and the opposite polarity of the signal exported with the transmission unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765494.6A CN107393488B (en) | 2017-08-30 | 2017-08-30 | Pixel driving circuit and pixel driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765494.6A CN107393488B (en) | 2017-08-30 | 2017-08-30 | Pixel driving circuit and pixel driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107393488A true CN107393488A (en) | 2017-11-24 |
| CN107393488B CN107393488B (en) | 2019-06-14 |
Family
ID=60348864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710765494.6A Active CN107393488B (en) | 2017-08-30 | 2017-08-30 | Pixel driving circuit and pixel driving method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107393488B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877696A (en) * | 2018-09-28 | 2018-11-23 | 京东方科技集团股份有限公司 | Pixel circuit and its driving method, display panel and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080174538A1 (en) * | 2007-01-24 | 2008-07-24 | Hitachi Displays, Ltd. | Display device |
| US20080315918A1 (en) * | 2007-06-20 | 2008-12-25 | Hao Luo | Thin film transistor logic |
| US20090212200A1 (en) * | 2008-02-25 | 2009-08-27 | Seiko Epson Corporation | Pixel circuit, electro-optical device of digital driving type, and electronic apparatus |
| CN103778881A (en) * | 2014-01-27 | 2014-05-07 | 京东方科技集团股份有限公司 | Data driving circuit, display device and driving method thereof |
| US20150015147A1 (en) * | 2008-09-05 | 2015-01-15 | Ketra, Inc. | Illumination Devices and Related Systems and Methods |
-
2017
- 2017-08-30 CN CN201710765494.6A patent/CN107393488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080174538A1 (en) * | 2007-01-24 | 2008-07-24 | Hitachi Displays, Ltd. | Display device |
| US20080315918A1 (en) * | 2007-06-20 | 2008-12-25 | Hao Luo | Thin film transistor logic |
| US20090212200A1 (en) * | 2008-02-25 | 2009-08-27 | Seiko Epson Corporation | Pixel circuit, electro-optical device of digital driving type, and electronic apparatus |
| US20150015147A1 (en) * | 2008-09-05 | 2015-01-15 | Ketra, Inc. | Illumination Devices and Related Systems and Methods |
| CN103778881A (en) * | 2014-01-27 | 2014-05-07 | 京东方科技集团股份有限公司 | Data driving circuit, display device and driving method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108877696A (en) * | 2018-09-28 | 2018-11-23 | 京东方科技集团股份有限公司 | Pixel circuit and its driving method, display panel and display device |
| US10832608B2 (en) | 2018-09-28 | 2020-11-10 | Beijing Boe Optoelectronics Technology Co., Ltd. | Pixel circuit, method for driving method, display panel, and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107393488B (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104081270B (en) | Image display device with storage | |
| CN108447439A (en) | Array substrate, display screen and display device | |
| US20150171833A1 (en) | Gate driver circuit outputting superimposed pulses | |
| KR100731539B1 (en) | Electrophoretic device, method for driving the electrophoretic device, and electronic apparatus | |
| CN109920371A (en) | Pixel circuit and its driving method, display device | |
| US7518782B2 (en) | Electrophoretic device, driving method thereof, and electronic apparatus | |
| US9430975B2 (en) | Array substrate and the liquid crystal panel | |
| CN104269137B (en) | A kind of phase inverter, drive circuit and display floater | |
| CN105609069B (en) | Level shifting circuit, driving circuit and display device | |
| US20060221049A1 (en) | Electrophoretic display device and method for driving the same | |
| CN109148548A (en) | Array substrate and display panel | |
| CN104299570A (en) | Pixel circuit, drive method thereof, array substrate and display panel | |
| CN108154861A (en) | A kind of top rake voltage generation circuit and liquid crystal display device | |
| CN107221300A (en) | Image element circuit and its driving method, display base plate, display device | |
| CN107016956A (en) | A kind of image element circuit, driving method and display | |
| US20090223821A1 (en) | Electrophoretic device, method for driving same, and electronic apparatus | |
| CN105321491B (en) | Gate driving circuit and the liquid crystal display using gate driving circuit | |
| CN110021262A (en) | Pixel circuit and its driving method, pixel unit, display panel | |
| CN107393488B (en) | Pixel driving circuit and pixel driving method | |
| CN104269153A (en) | Liquid crystal display panel, driving structure and driving method thereof | |
| US20050110743A1 (en) | Display device, method of driving display device and electronic equipment | |
| KR102043135B1 (en) | Scan signal driving apparatus | |
| CN109785811A (en) | A kind of common voltage provides circuit, liquid crystal display panel and its driving method | |
| US20160217748A1 (en) | Data line driving circuit of electrooptical device, electrooptical apparatus, and electronic apparatus | |
| CN107622759A (en) | Pixel control circuit and its control method, display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |