CN107170409A - A kind of image element circuit and display panel - Google Patents
A kind of image element circuit and display panel Download PDFInfo
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- CN107170409A CN107170409A CN201710586380.5A CN201710586380A CN107170409A CN 107170409 A CN107170409 A CN 107170409A CN 201710586380 A CN201710586380 A CN 201710586380A CN 107170409 A CN107170409 A CN 107170409A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
Abstract
The invention discloses a kind of image element circuit and display panel, the image element circuit includes：Drive module, bypass module and luminescent device；Wherein, drive module is used to input driving current to the input of luminescent device, and driving luminescent device lights；Bypass module is connected between the input of luminescent device and output end, and the driving current of luminescent device is input to for shunting drive module.So the standoff voltage of drive module can be set more a little bit smaller, allow drive module to export micro-current in dark-state to ensure the response time, improve response speed, improve hesitation；Simultaneously by connecting a bypass module between the input of luminescent device, output end, and then caused by the shunting action of bypass module smaller by the electric current of luminescent device, so as to ensure that the brightness of luminescent device under dark-state is dark enough, it is ensured that the dark-state display brightness of display panel.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of image element circuit and display panel.
Background technology
With the progress of Display Technique, OLED (Organic Light Emitting Diode, OLED)
It is one of focus of current flat-panel monitor research field, increasing active matrix organic light-emitting diode (Active
Matrix Organic Light Emitting Diode, AMOLED) display panel enters market, relative to traditional film
Transistor liquid crystal display (TFT-LCD) panel (Thin Film Transistor Liquid Crystal Display, TFT LCD),
AMOLED has faster reaction speed, higher contrast and more vast visual angle.
However, by carrying out test discovery to OLED display screen, OLED display screen jumps on state of from dark-state display picture
Response speed is poor during display picture.This is due to drive the standoff voltage of the luminous driving transistors of OLED larger under OFF state
(to ensure the contrast of display screen, it is necessary to which standoff voltage is set into larger, so that driving transistor is in completely switched off shape
State), therefore when display screen jumps on state of by dark-state, of short duration threshold voltage shift can occur for driving transistor, so as to lead
Cause response speed to be deteriorated, occur hesitation.
Therefore, how to improve the response speed of display panel, so as to improve hesitation, be those skilled in the art urgently
The technical problem of solution.
The content of the invention
The embodiments of the invention provide a kind of image element circuit and display panel, deposited to improve display panel in the prior art
Hesitation.
The embodiments of the invention provide a kind of image element circuit, including：Drive module, bypass module and luminescent device；Wherein,
The drive module is used to input driving current to the input of the luminescent device, drives the luminescent device hair
Light；
The bypass module is connected between the input of the luminescent device and output end, for shunting the driving mould
Block is input to the driving current of the luminescent device.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, the bypass module,
Including：Resistance；
The resistance is connected between the input of the luminescent device and output end.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, the drive module,
Including：Reset unit, writing unit, compensating unit, driver element, control unit and power input unit；Wherein,
The first control end and the second control end of the reset unit are used to input the first control signal, and input is used for defeated
Enter reference signal, the first output end is connected with first node, and the second output end is connected with Section Point；The reset unit is used for
Under the control of first control signal, the reference signal is respectively outputted to the first node and the second section
Point；
The control end of said write unit is used to input the second control signal, and input is used for input data signal, output
End is connected with the 3rd node；Said write unit is used under the control of second control signal, and the data are believed
Number it is output to the 3rd node；
The control end of the compensating unit is used to input second control signal, and first input end is believed for input power
Number, the second input is connected with fourth node, and output end is connected with the first node；The compensating unit is used for described the
Under the control of two control signals, the threshold voltage of the driver element is carried out to the first node by the power supply signal
Compensation；
The control end of the driver element is connected with the first node, and input is connected with the 3rd node, output
End is connected with the fourth node；The driver element is used under the control of the first node, turns on the 3rd node
With the fourth node；
The control end of described control unit is used to input the 3rd control signal, and input is connected with the fourth node, defeated
Go out end with the input of the luminescent device to be connected；Described control unit is used under the control of the 3rd control signal, leads
Lead to the fourth node and the input of the luminescent device；
The control end of the power input unit is used to input the 3rd control signal, and input is used to input the electricity
Source signal, output end is connected with the 3rd node；The power input unit is used for the control in the 3rd control signal
Under, the power supply signal is output to the 3rd node.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, the power input
Unit, including：First switch transistor；
The grid of the first switch transistor is used to input the 3rd control signal, and source electrode is used to input the power supply
Signal, drain electrode is connected with the 3rd node.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, said write unit,
Including：Second switch transistor；
The grid of the second switch transistor is used to input second control signal, and source electrode is used to input the data
Signal, drain electrode is connected with the 3rd node.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, the driver element,
Including：3rd switching transistor；
The grid of 3rd switching transistor is connected with the first node, and source electrode is connected with the 3rd node, leakage
Pole is connected with the fourth node.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, the compensating unit,
Including：4th switching transistor and electric capacity；Wherein,
The grid of 4th switching transistor is used to input second control signal, source electrode and the fourth node phase
Even, drain electrode is connected with the first node；
One end of the electric capacity is used to input the power supply signal, and the other end is connected with the first node.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, the reset unit,
Including：5th switching transistor and the 6th switching transistor；Wherein,
The grid of 5th switching transistor is used to input first control signal, and source electrode is used to input the reference
Signal, drain electrode is connected with the first node；
The grid of 6th switching transistor is used to input first control signal, and source electrode is used to input the reference
Signal, drain electrode is connected with the Section Point.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, described control unit,
Including：7th switching transistor；
The grid of 7th switching transistor is used to input the 3rd control signal, source electrode and the fourth node phase
Even, drain electrode is connected with the input of the luminescent device.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, the drive module,
Including：First subelement and the second subelement；Wherein,
The control end of first subelement is used to input scanning signal, and input is used for input data signal, output end
It is connected with control node；First subelement is used under the control of the scanning signal, and the data-signal is output to
The control node；
The control end of second subelement is connected with the control node, and input is used for input power signal, output
End is connected with the input of the luminescent device；Second subelement is used under the control of the control node, passes through institute
Stating power supply signal drives the luminescent device to light.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, first son is single
Member, including：8th switching transistor；
The grid of 8th switching transistor is used to input the scanning signal, and source electrode is used to input the data letter
Number, drain electrode is connected with the control node.
In a kind of possible embodiment, in above-mentioned image element circuit provided in an embodiment of the present invention, second son is single
Member, including：9th switching transistor and storage capacitance；
The grid of 9th switching transistor is connected with the control node, and source electrode is used to input the power supply signal,
Drain electrode is connected with the input of the luminescent device；
One end of the storage capacitance is used to input the power supply signal, and the other end is connected with the control node.
The embodiments of the invention provide a kind of display panel, including above-mentioned image element circuit provided in an embodiment of the present invention.
The beneficial effect of the embodiment of the present invention includes：
The embodiments of the invention provide a kind of image element circuit and display panel, the image element circuit includes：Drive module, bypass
Module and luminescent device；Wherein, drive module is used to input driving current, driving luminescent device hair to the input of luminescent device
Light；Bypass module is connected between the input of luminescent device and output end, and luminescent device is input to for shunting drive module
Driving current.So the standoff voltage of drive module can be set more a little bit smaller, make drive module can be with defeated in dark-state
Go out micro-current to ensure the response time, improve response speed, improve hesitation；Simultaneously by the input in luminescent device,
Connect a bypass module between output end, so by the shunting action of bypass module cause electric current by luminescent device compared with
It is small, so as to ensure that the brightness of luminescent device under dark-state is dark enough, it is ensured that the dark-state display brightness of display panel.
Brief description of the drawings
Fig. 1 is the structural representation of image element circuit provided in an embodiment of the present invention；
Fig. 2 is the characteristic working curve figure of driving transistor provided in an embodiment of the present invention；
Fig. 3 a and Fig. 3 b are respectively the concrete structure signal of image element circuit provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment to image element circuit provided in an embodiment of the present invention and display panel is carried out
Detailed description.
The embodiments of the invention provide a kind of image element circuit, as shown in figure 1, including：Drive module 01, the and of bypass module 02
Luminescent device OLED；Wherein, drive module 01 is used to input driving current to luminescent device OLED input, drives photophore
Part OLED lights；Bypass module 02 is connected between luminescent device OLED input and output end, for shunting drive module
01 is input to luminescent device OLED driving current, the output end access ground power supply signal ELVSS of luminescent device.
Specifically, response time test is carried out to display panel, display panel is set to display a period of time during test
(such as one minute) black picture, then switches to white picture.Illustrated so that driving tube is p-type pipe as an example, then in this minute
Black picture display time in, the grid voltage that the driving transistor of pixel light emission is driven in image element circuit is malleation, and driving is brilliant
Body pipe is in OFF state.As shown in Fig. 2 wherein, Gate1 divides for transistor characteristor characteristic curve, Gate2 and the Gate3 of grid no-bias
Not Wei grid voltage be less than normal standoff voltage transistor characteristor characteristic curve；As shown in Figure 2, grid of the black picture 1 than black picture 2
Voltage is bigger, and its leakage current is bigger, and brightness is also higher；Display panel is switched to the hysteresis phenomenon of white picture, phase from black picture 1
It is switched to that white picture is more serious from black picture 2 compared with display panel, it shows as the first frame picture can not return to normally in time
White picture.Therefore, in order to improve the response speed of display panel, it is necessary to reduce driving transistor when display panel shows black picture
Grid voltage, i.e., in above-mentioned image element circuit provided in an embodiment of the present invention, the standoff voltage of drive module is set smaller, made
Drive module can export micro-current in OFF state to ensure the response time, improve response speed, improve hesitation；Simultaneously
By connecting a bypass module between the input of luminescent device, output end, and then made by the shunting action of bypass module
Must be smaller by the electric current of luminescent device, so as to ensure that the brightness of luminescent device under dark-state is dark enough, it is ensured that display panel
Dark-state display brightness.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a and Figure 3 b shows, mould is bypassed
Block 02 can include：Resistance R；Resistance R is connected between luminescent device OLED input and output end.Specifically, mould is bypassed
Block can realize that the driving current exported to drive module is shunted by resistance, can so ensure that display panel is responded
Time, improve hesitation, while the dark of the driving current influence display panel that drive module is exported under dark-state can be avoided again
State display brightness.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a, drive module 01 is wrapped
Include：Reset unit 011, writing unit 012, compensating unit 013, driver element 014, control unit 015 and power input unit
016；Wherein,
The first control end and the second control end of reset unit 011 are used to input the first control signal S1, and input is used for
Input reference signal Vref, the first output end is connected with first node P1, and the second output end is connected with Section Point P2；Reset single
Member 011 is used under the first control signal S1 control, and reference signal Vref is respectively outputted into first node P1 and second section
Point P2；
The control end of writing unit 012 is used to input the second control signal S2, and input is used for input data signal
Vdata, output end is connected with the 3rd node P3；Writing unit 012 is used under the second control signal S2 control, and data are believed
Number Vdata is output to the 3rd node P3；
The control end of compensating unit 013 is used to input the second control signal S2, and first input end is used for input power signal
ELVDD, the second input is connected with fourth node P4, and output end is connected with first node P1；Compensating unit 013 is used for second
Under control signal S2 control, the benefit of the threshold voltage of unit 014 is driven to first node P1 by power supply signal ELVDD
Repay；
The control end of driver element 014 is connected with first node P1, and input is connected with the 3rd node P3, output end and the
Four node P4 are connected；Driver element 014 is used under first node P1 control, turns on the 3rd node P3 and fourth node P4；
The control end of control unit 015 is used to input the 3rd control signal EM, and input is connected with fourth node P4, exports
End is connected with luminescent device OLED input；Control unit 015 is used under the 3rd control signal EM control, conducting the 4th
Node P4 and luminescent device OLED input；
The control end of power input unit 016 is used to input the 3rd control signal EM, and input is used for input power signal
ELVDD, output end is connected with the 3rd node P3；Power input unit 016 is used under the 3rd control signal EM control, by electricity
Source signal ELVDD is output to the 3rd node P3.
Specifically, in above-mentioned image element circuit provided in an embodiment of the present invention, drive module is single by reset unit, write-in
Member, compensating unit, driver element, control unit and power input unit, to realize output driving current driving luminescent device hair
Light.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a, power input unit
016 can include：First switch transistor T1；First switch transistor T1 grid is used to input the 3rd control signal EM, source
Pole is used for input power signal ELVDD, and drain electrode is connected with the 3rd node P3.Specifically, first switch transistor can be the 3rd
Turned under the control of control signal, power supply signal can be output to the 3rd node by the first switch transistor of conducting.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a, writing unit 012
It can include：Second switch transistor T2；Second switch transistor T2 grid is used to input the second control signal S2, and source electrode is used
In input data signal Vdata, drain electrode is connected with the 3rd node P3.Specifically, second switch transistor can be in the second control
Turned under the control of signal, data-signal can be output to the 3rd node by the second switch transistor of conducting.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a, driver element 014
It can include：3rd switching transistor T3；3rd switching transistor T3 grid is connected with first node P1, source electrode and Section three
Point P3 is connected, and drain electrode is connected with fourth node P4.Specifically, the 3rd switching transistor can be led under the control of first node
Logical, the 3rd switching transistor of conducting can turn on the 3rd node and fourth node.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a, compensating unit 013
It can include：4th switching transistor T4 and electric capacity C；Wherein, the 4th switching transistor T4 grid is used to input the second control
Signal S2, source electrode is connected with fourth node P4, and drain electrode is connected with first node P1；Electric capacity C one end is used for input power signal
ELVDD, the other end is connected with first node P1.Specifically, the 4th switching transistor can be under the control of the second control signal
Conducting, the 4th switching transistor of conducting can turn on first node and fourth node.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a, reset unit 011
It can include：5th switching transistor T5 and the 6th switching transistor T6；Wherein, the 5th switching transistor T5 grid is used for defeated
Enter the first control signal S1, source electrode is used for input reference signal Vref, and drain electrode is connected with first node P1；6th switching transistor
T6 grid is used to input the first control signal S1, and source electrode is used for input reference signal Vref, and drain electrode is connected with Section Point P2.
Specifically, the 5th switching transistor can be turned under the control of the first control signal, and the 5th switching transistor of conducting can be with
Reference signal is output to first node；6th switching transistor can be turned under the control of the first control signal, conducting
Reference signal can be output to Section Point by the 6th switching transistor.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 a, control unit 015
It can include：7th switching transistor T7；7th switching transistor T7 grid be used for input the 3rd control signal EM, source electrode with
Fourth node P4 is connected, and drain electrode is connected with luminescent device OLED input.Specifically, the 7th switching transistor can be the 3rd
Turned under the control of control signal, fourth node and Section Point can be luminescent device by the 7th switching transistor of conducting
Input is turned on.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 b, drive module 01 can
With including：First subelement 017 and the second subelement 018；Wherein,
The control end of first subelement 017 is used to input scanning signal Gate, and input is used for input data signal
Vdata, output end is connected with control node PU；First subelement 017 is used under scanning signal Gate control, and data are believed
Number Vdata is output to control node PU；
The control end of second subelement 018 is connected with control node PU, and input is defeated for input power signal ELVDD
Go out end with luminescent device OLED input to be connected；Second subelement 018 is used under control node PU control, passes through power supply
Signal ELVDD driving luminescent devices OLED lights.
Specifically, in above-mentioned image element circuit provided in an embodiment of the present invention, drive module can by the first subelement and
Second subelement output driving current, to realize that driving luminescent device lights.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 b, the first subelement
017 can include：8th switching transistor T8；8th switching transistor T8 grid is used to input scanning signal Gate, source electrode
For input data signal Vdata, drain electrode is connected with control node PU.Specifically, the 8th switching transistor can be in scanning letter
Number control under turn on, data-signal can be output to control node by the 8th switching transistor of conducting.
In the specific implementation, in above-mentioned image element circuit provided in an embodiment of the present invention, as shown in Figure 3 b, the second subelement
018 can include：9th switching transistor T9 and storage capacitance C；9th switching transistor T9 grid and control node PU phases
Even, source electrode is used for input power signal ELVDD, and drain electrode is connected with luminescent device OLED input；Use storage capacitance C one end
In input ELVDD power supply signals, the other end is connected with control node PU.Specifically, the 9th switching transistor can be in control section
Turned under the control of point, power supply signal can be output to the input of luminescent device by the 9th switching transistor of conducting；It is luminous
The output end access ground power supply signal ELVSS of device.
It should be noted that the switching transistor mentioned in the above embodiment of the present invention can be thin film transistor (TFT) (TFT,
Thin Film Transistor) or metal oxide semiconductor field effect tube (MOS, Metal Oxide
Semiconductor), do not limit herein.In specific implementation, the source electrode of these transistors and drain electrode can be exchanged, and not done
It is specific to distinguish.Illustrated when describing specific embodiment by taking thin film transistor (TFT) as an example.In addition, picture as shown in Figure 3 a and Figure 3 b shows
Plain circuit structure, the luminous work schedule of output driving current driving luminescent device is same as the prior art, is not described in detail here.
And the design of the present invention can also be applied to other pixel line structures, it is only necessary on the basis of original dot structure,
Increase a bypass module, thus by the standoff voltage of driving transistor set it is smaller, make drive module can be with dark-state
Output micro-current improves response speed to ensure the response time, improves hesitation；Simultaneously by the defeated of luminescent device
Enter, connect a bypass module between output end, and then cause by the shunting action of bypass module the electricity by luminescent device
Stream is smaller, so as to ensure that the brightness of luminescent device under dark-state is dark enough, it is ensured that the dark-state display brightness of display panel.
Based on same inventive concept, provided the embodiments of the invention provide a kind of display panel, including the embodiment of the present invention
Above-mentioned image element circuit.The display panel can apply to mobile phone, tablet personal computer, television set, display, notebook computer, number
Any product or part with display function such as code-phase frame, navigator.Because the display panel solves the principle and picture of problem
Plain circuit is similar, therefore the implementation of the display panel may refer to the implementation of above-mentioned image element circuit, repeats part and repeats no more.
The embodiments of the invention provide a kind of image element circuit and display panel, the image element circuit includes：Drive module, bypass
Module and luminescent device；Wherein, drive module is used to input driving current, driving luminescent device hair to the input of luminescent device
Light；Bypass module is connected between the input of luminescent device and output end, and luminescent device is input to for shunting drive module
Driving current.So the standoff voltage of drive module can be set more a little bit smaller, make drive module can be with defeated in dark-state
Go out micro-current to ensure the response time, improve response speed, improve hesitation；Simultaneously by the input in luminescent device,
Connect a bypass module between output end, so by the shunting action of bypass module cause electric current by luminescent device compared with
It is small, so as to ensure that the brightness of luminescent device under dark-state is dark enough, it is ensured that the dark-state display brightness of display panel.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (13)
1. a kind of image element circuit, it is characterised in that including：Drive module, bypass module and luminescent device；Wherein,
The drive module is used to input driving current to the input of the luminescent device, drives the luminescent device to light；
The bypass module is connected between the input of the luminescent device and output end, defeated for shunting the drive module
Enter the driving current to the luminescent device.
2. image element circuit as claimed in claim 1, it is characterised in that the bypass module, including：Resistance；
The resistance is connected between the input of the luminescent device and output end.
3. image element circuit as claimed in claim 1 or 2, it is characterised in that the drive module, including：Reset unit, write-in
Unit, compensating unit, driver element, control unit and power input unit；Wherein,
The first control end and the second control end of the reset unit are used to input the first control signal, and input, which is used to input, joins
Signal is examined, the first output end is connected with first node, and the second output end is connected with Section Point；The reset unit is used in institute
Under the control for stating the first control signal, the reference signal is respectively outputted to the first node and the Section Point；
The control end of said write unit be used for input the second control signal, input be used for input data signal, output end with
3rd node is connected；Said write unit is used under the control of second control signal, and the data-signal is defeated
Go out to the 3rd node；
The control end of the compensating unit is used to input second control signal, and first input end is used for input power signal,
Second input is connected with fourth node, and output end is connected with the first node；The compensating unit is used for described second
Under the control of control signal, the benefit of the threshold voltage of the driver element is carried out to the first node by the power supply signal
Repay；
The control end of the driver element is connected with the first node, and input is connected with the 3rd node, output end with
The fourth node is connected；The driver element is used under the control of the first node, turns on the 3rd node and institute
State fourth node；
The control end of described control unit is used to input the 3rd control signal, and input is connected with the fourth node, output end
It is connected with the input of the luminescent device；Described control unit is used under the control of the 3rd control signal, turns on institute
State the input of fourth node and the luminescent device；
The control end of the power input unit is used to input the 3rd control signal, and input is used to input the power supply letter
Number, output end is connected with the 3rd node；The power input unit is used under the control of the 3rd control signal, will
The power supply signal is output to the 3rd node.
4. image element circuit as claimed in claim 3, it is characterised in that the power input unit, including：First switch crystal
Pipe；
The grid of the first switch transistor is used to input the 3rd control signal, and source electrode is used to input the power supply letter
Number, drain electrode is connected with the 3rd node.
5. image element circuit as claimed in claim 3, it is characterised in that said write unit, including：Second switch transistor；
The grid of the second switch transistor is used to input second control signal, and source electrode is used to input the data letter
Number, drain electrode is connected with the 3rd node.
6. image element circuit as claimed in claim 3, it is characterised in that the driver element, including：3rd switching transistor；
The grid of 3rd switching transistor is connected with the first node, and source electrode is connected with the 3rd node, drain electrode with
The fourth node is connected.
7. image element circuit as claimed in claim 3, it is characterised in that the compensating unit, including：4th switching transistor and
Electric capacity；Wherein,
The grid of 4th switching transistor is used to input second control signal, and source electrode is connected with the fourth node,
Drain electrode is connected with the first node；
One end of the electric capacity is used to input the power supply signal, and the other end is connected with the first node.
8. image element circuit as claimed in claim 3, it is characterised in that the reset unit, including：5th switching transistor and
6th switching transistor；Wherein,
The grid of 5th switching transistor is used to input first control signal, and source electrode is used to input the reference letter
Number, drain electrode is connected with the first node；
The grid of 6th switching transistor is used to input first control signal, and source electrode is used to input the reference letter
Number, drain electrode is connected with the Section Point.
9. image element circuit as claimed in claim 3, it is characterised in that described control unit, including：7th switching transistor；
The grid of 7th switching transistor is used to input the 3rd control signal, and source electrode is connected with the fourth node,
Drain electrode is connected with the input of the luminescent device.
10. image element circuit as claimed in claim 1 or 2, it is characterised in that the drive module, including：First subelement and
Second subelement；Wherein,
The control end of first subelement is used to input scanning signal, and input is used for input data signal, output end and control
Node processed is connected；First subelement is used under the control of the scanning signal, the data-signal is output to described
Control node；
The control end of second subelement is connected with the control node, input be used for input power signal, output end with
The input of the luminescent device is connected；Second subelement is used under the control of the control node, passes through the electricity
Source signal drives the luminescent device to light.
11. image element circuit as claimed in claim 10, it is characterised in that first subelement, including：8th switch crystal
Pipe；
The grid of 8th switching transistor is used to input the scanning signal, and source electrode is used to input the data-signal, leaked
Pole is connected with the control node.
12. image element circuit as claimed in claim 10, it is characterised in that second subelement, including：9th switch crystal
Pipe and storage capacitance；
The grid of 9th switching transistor is connected with the control node, and source electrode is used to input the power supply signal, drains
It is connected with the input of the luminescent device；
One end of the storage capacitance is used to input the power supply signal, and the other end is connected with the control node.
13. a kind of display panel, it is characterised in that including the image element circuit as described in claim any one of 1-12.
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| CN201710586380.5A CN107170409A (en) | 2017-07-18 | 2017-07-18 | A kind of image element circuit and display panel |
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| CN201710586380.5A CN107170409A (en) | 2017-07-18 | 2017-07-18 | A kind of image element circuit and display panel |
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Application publication date: 20170915 |