CN206271396U - A kind of image element circuit and display device - Google Patents
A kind of image element circuit and display device Download PDFInfo
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- CN206271396U CN206271396U CN201621413302.2U CN201621413302U CN206271396U CN 206271396 U CN206271396 U CN 206271396U CN 201621413302 U CN201621413302 U CN 201621413302U CN 206271396 U CN206271396 U CN 206271396U
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Abstract
The utility model embodiment provides a kind of image element circuit and display device, is related to display technology field, it is possible to resolve the bad problem of bright spot, and do not interfere with the quality and yield of product.Main drive module is used under the control of scan signal line and data signal line in the image element circuit, output driving current signal to the module that fuses；Fusing module is used under the control of fusing control module, disconnects the connection of light emitting module and main drive module；Fusing control module is used under the control of signal input part, disconnects the connection of light emitting module and main drive module；Standby drive module is used under the control of scan signal line and data signal line, output driving current signal to handover module；Handover module is used under the control of control line input signal, connects standby drive module and light emitting module；The driving current signal that light emitting module is used to be exported by main drive module or standby drive module is lighted.
Description
Technical field
The utility model is related to display technology field, more particularly to a kind of image element circuit and display device.
Background technology
Organic electroluminescent LED (Organic Light Emitting Diode, abbreviation OLED) have self-luminous,
Contrast is high, colour gamut is wide, preparation process is simple and easily formed flexible structure the advantages of, therefore, using Organic Light Emitting Diode
Display Technique turned into a kind of important Display Technique.
Especially active-matrix organic electroluminescent LED (Active Matrix Organic Light
Emitting Diode, abbreviation AMOLED), it has without visual angle limitation, low cost of manufacture, answer speed is fast, save power consumption, and
With great development potentiality.
But, due to the problem at the aspect such as design and technology stability, there is bright spot in current OLED display panel
Probability it is very big, and bright spot problem, in the application in many fields, tolerance is almost nil.
The method of solution bright spot is mainly and is scanned by the bright spot in equipment counter plate at present, it is determined that bright spot position
The scheme by being cut by laser closes pixel afterwards.But the program inefficiency and infringement to pixel is high, influences the product of panel
Matter and yield.And, when the size reduction of pixel is to nanoscale, laser repairing will be unable to repair pixel.Additionally,
Bright spot is changed into dim spot after reparation, and the bad point number of panel increases, and causes the yield of panel and quality further to decline.
Utility model content
Embodiment of the present utility model provides a kind of image element circuit and display device, it is possible to resolve the bad problem of bright spot, and
The quality and yield of product are not interfered with.
To reach above-mentioned purpose, embodiment of the present utility model is adopted the following technical scheme that：
A kind of first aspect, there is provided image element circuit, including：Main drive module, standby drive module, light emitting module, fusing
Module, fusing control module and handover module.
Specifically, the main drive module, connects scan signal line, data signal line, first voltage end and fusing respectively
Module, under the control of the scan signal line and the data signal line, by the voltage of first voltage end input
Signal is converted into driving current signal, and exports to the fusing module.
The fusing module, is also connected with fusing control module and the light emitting module, in the fusing control
Under the control of module, disconnect the connection of the light emitting module and the main drive module.
The fusing control module, is also connected with signal input part and earth terminal, for the control in the signal input part
Under, the main drive module is exported to the driving current signal of the fusing module and flow to the earth terminal, so that the hair
The connection of optical module and the main drive module disconnects.
The standby drive module, connects the scan signal line, the data signal line, the first voltage end respectively
With the handover module, under the control of the scan signal line and the data signal line, by the first voltage end
The voltage signal of input is converted into driving current signal, and exports to the handover module.
The handover module, is also connected with the light emitting module and control line, for the control in the control line input signal
Under system, connect the standby drive module and the light emitting module.
The light emitting module, is also connected with second voltage end, under the control at the second voltage end, by the master
Drive module or the driving current signal of the standby drive module output are lighted.
Optionally, the main drive module includes the first transistor, transistor seconds and the first storage capacitance；Described first
The grid of transistor connects the scan signal line, and the first pole connects the data signal line, and the second pole connection described second is brilliant
The grid of body pipe；First pole of the transistor seconds connects the first voltage end, and the second pole connects the fusing module；Institute
The one end for stating the first storage capacitance connects the grid of the transistor seconds, and the other end connects the second of the transistor seconds
Pole, or, the other end connects the first pole of the transistor seconds.
Optionally, the standby drive module includes third transistor, the 4th transistor and the second storage capacitance；Described
The grid of three transistors connects the scan signal line, and the first pole connects the data signal line, the second pole connection the described 4th
The grid of transistor；First pole of the 4th transistor connects the first voltage end, and the second pole connects the handover module；
One end of second storage capacitance connects the grid of the 4th transistor, and the other end connects the second of the 4th transistor
Pole, or, the other end connects the first pole of the 4th transistor.
Optionally, the fusing module includes the first fuse element；One end of first fuse element connects the master
Drive module, the other end is all connected with the light emitting module and the fusing control module.
Optionally, the fusing control module includes the 5th transistor；The grid of the 5th transistor connects the letter
Number input, the first pole connects the fusing module, and the second pole connects the earth terminal.
Optionally, the handover module includes the 6th transistor；The grid of the 6th transistor connects the control line,
First pole connects the standby drive module, and the second pole connects the light emitting module.
Optionally, the light emitting module includes luminescent device；The anode of the luminescent device and fusing module and the institute
State handover module to be all connected with, negative electrode connects the second voltage end.
Based on above-mentioned, it is preferred that the image element circuit also includes switching control module, and the control line, institute are connected respectively
Main drive module, the fusing module, tertiary voltage end, the 4th voltage end and the signal input part are stated, for described
Under the control of three voltage ends, the 4th voltage end and the signal input part, when the fusing module makes the light emitting module
When being disconnected with the connection of the main drive module, secondary signal is input into the control line, makes the light emitting module and described standby
Connected with drive module；Otherwise, the first signal is input into the control line, makes the light emitting module and the standby drive module
Remain open.
Further alternative, the switching control module includes the 7th transistor, the 8th transistor, the 9th transistor and the
Two fuse elements；The grid of the 7th transistor and the first pole connect the tertiary voltage end, the second pole connection described second
One end of fuse element；The other end of second fuse element is equal with the first pole of the 8th transistor and the control line
Connection；The grid of the 8th transistor and the second pole connect the 4th voltage end；The grid connection of the 9th transistor
The signal input part, the first pole connects the first pole of the 8th transistor, the second pole and the main drive module and described
Fusing module is all connected with.
Wherein, the breadth length ratio of the 7th transistor is more than 10 times of the breadth length ratio of the 8th transistor；Described
Seven transistors and the 8th transistor are normally opened；7th transistor is P-type transistor, the 8th transistor and the 9th crystalline substance
Body pipe is N-type transistor；Or, the 7th transistor is N-type transistor, the 8th transistor and the 9th transistor
It is P-type transistor.
A kind of second aspect, there is provided display device, including the image element circuit described in first aspect.
Embodiment of the present utility model provides a kind of image element circuit and display device, is scanned by being input into scan signal line
Signal, shutdown signal is input into data signal line, and under the control of signal input part, if there is Chang Liang not in the image element circuit
Good, then main drive module is exported to the driving current signal of fusing module and flows to earth terminal, light emitting module and main drive module
Connection disconnect so that can solve the problems, such as often it is bright bad, otherwise because main drive module does not have driving current signal to export, light
Module and main drive module keep connection, drive light emitting module to be lighted still through main drive module.On this basis, if
Be present often bright bad, the connection disconnection of light emitting module and main drive module in the image element circuit, by the control of control line, can make
Light emitting module and standby drive module are connected, so that standby drive module drives light emitting module to be lighted.Wherein, when the picture
During plain circuit normal work, scan signal line input scanning signal, data signal line input data signal, main drive module or standby
The driving current signal exported with drive module drives light emitting module to light.Based on this, it is known that, the utility model embodiment is in solution
Certainly often on the basis of bright bad problem, pixel will not be caused to damage, and can reach the purpose for repairing pixel, it is to avoid
Quality and yield that influence product due to often bright bad.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation one of image element circuit that Fig. 1 is provided for the utility model embodiment；
Fig. 2 is a kind of concrete structure schematic diagram one of the modules of image element circuit shown in Fig. 1；
Fig. 3 is a kind of concrete structure schematic diagram two of the modules of image element circuit shown in Fig. 1；
A kind of structural representation two of image element circuit that Fig. 4 is provided for the utility model embodiment；
Fig. 5 is a kind of concrete structure schematic diagram of the modules of image element circuit shown in Fig. 4；
Equivalent circuit diagram when Fig. 6 a- Fig. 6 d are the image element circuit correspondence different situations shown in Fig. 5；
Timing diagram one when Fig. 7 a are image element circuit normal work；
Timing diagram two when Fig. 7 b are image element circuit normal work；
A kind of driving method flow chart of image element circuit that Fig. 8 is provided for the utility model embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
The utility model embodiment provides a kind of image element circuit, as shown in figure 1, including：Main drive module 10, standby driving
Module 20, light emitting module 30, fusing module 40, fusing control module 50 and handover module 60.
Specifically, main drive module 10, connect respectively scan signal line SL, data signal line DL, first voltage end V1 and
Fusing module 40, under the control of scan signal line SL and data signal line DL, by the voltage of first voltage end V1 inputs
Signal is converted into driving current signal, and exports to fusing module 40.
Fusing module 40, is also connected with fuse control module 50 and light emitting module 30, for the control in fusing control module 50
Under system, disconnect the connection of light emitting module 30 and main drive module 10.
Fusing control module 50, is also connected with signal input part S and earth terminal GND, for the control in signal input part S
Under, main drive module 10 is exported to the driving current signal of fusing module 40 and flow to earth terminal GND, so that the He of light emitting module 30
The connection of main drive module 10 disconnects.
Standby drive module 20, connects scan signal line SL, data signal line DL, first voltage end V1 and switching mould respectively
Block 60, under the control of scan signal line SL and data signal line DL, the voltage signal that first voltage end V1 is input into turn
Driving current signal is turned to, and is exported to handover module 60.
Handover module 60, is also connected with light emitting module 30 and control line CL, under the control of control line CL input signals,
Connect standby drive module 20 and light emitting module 30.
Light emitting module 30, is also connected with second voltage end V2, under the control of second voltage end V2, by main driving mould
Block 10 or the driving current signal of the output of standby drive module 20 are lighted.
The working method of the utility model embodiment image element circuit is：When image element circuit normal work, main drive module
The driving current signal of 10 outputs flows to light emitting module 30 by the module 40 that fuses, to drive light emitting module 30 to light.Now, control
Line CL processed is input into the first signal, remains open light emitting module 30 and standby drive module 20, meanwhile, signal input part S inputs
3rd signal, makes light emitting module 30 and main drive module 10 keep connection.
When image element circuit exist often it is bright bad when, signal input part S be input into the 4th signal, make main drive module 10 export to
The driving current signal of the module 40 that fuses flows to earth terminal, so that the connection of light emitting module 30 and main drive module 10 disconnects, together
When, control line CL input secondary signals connect light emitting module 30 and standby drive module 20.Based on this, standby drive module
The driving current signal of 20 outputs can flow to light emitting module 30, drive light emitting module 30 to light.
It should be noted that first, for fusing module 40, once under the control of fusing control module 50, make to light
The connection of module 30 and main drive module 10 disconnects, then light emitting module 30 and main drive module 10 can not again recover connection status.
Second, first voltage end V1 can connect supply voltage end Vdd.Second voltage end V2 can connect low-voltage end or
Earth terminal GND.
The utility model embodiment provides a kind of image element circuit, scanning signal is input into by scan signal line SL, to number
Shutdown signal is input into according to holding wire DL, and under the control of signal input part S, if image element circuit presence is often bright bad,
The output of main drive module 10 to the driving current signal of fusing module 40 flows to earth terminal GND, light emitting module 30 and main driving mould
The connection of block 10 disconnects, thus can solve the problems, such as it is often bright bad, otherwise because main drive module 10 is without driving current signal
Output, light emitting module 30 and main drive module 10 keep connection, are carried out still through the driving light emitting module 30 of main drive module 10
It is luminous.On this basis, if image element circuit presence is often bright bad, the connection of light emitting module 30 and main drive module 10 is broken
Open, by the control of control line CL, can connect light emitting module 30 and standby drive module 20, so that standby drive module 20 is driven
Dynamic light emitting module 30 is lighted.Wherein, when the image element circuit normal work, scan signal line SL input scanning signals,
The driving current signal of data signal line DL input data signals, main drive module 10 or the output of standby drive module 20 drives hair
Optical module 30 lights.Based on this, it is known that, the utility model embodiment, will not be to picture on the basis of often bright bad problem is solved
Element causes to damage, and can reach the purpose repaired to pixel, it is to avoid due to often bright bad quality that is influenceing product and
Yield.
As shown in Figures 2 and 3, main drive module 10 includes the first transistor T1, transistor seconds T2 and the first storage electricity
Hold C1.
Wherein, the grid connection scan signal line SL of the first transistor T1, the first pole connection data signal line DL, the second pole
The grid of connection transistor seconds T2.
The first pole connection first voltage end V1 of transistor seconds T2, the second pole connection fusing module 40.
The grid of one end connection transistor seconds T2 of the first storage capacitance C1, the of other end connection transistor seconds T2
Two poles, or, first pole of other end connection transistor seconds T2.
Herein, transistor seconds T2 is driving transistor.
It should be noted that the main drive module 10 can also include that the multiple switch in parallel with the first transistor T1 is brilliant
Body pipe, and/or, the multiple driving transistors in parallel with transistor seconds T2 can also be included.Above-mentioned is only to main driving mould
Block 10 for example, other are with the function identical structure of main drive module 10, this is no longer going to repeat them, but should all belong to
In protection domain of the present utility model.
As shown in Figures 2 and 3, standby drive module 20 includes third transistor T3, the 4th transistor T4 and the second storage
Electric capacity C2.
The grid connection scan signal line SL of third transistor T3, the first pole connection data signal line DL, the connection of the second pole
The grid of the 4th transistor T4.
The first pole connection first voltage end V1 of the 4th transistor T4, the second pole connection handover module 60.
One end of second storage capacitance C2 connects the grid of the 4th transistor T4, and the other end connects the of the 4th transistor T4
Two poles, or, the other end connects first pole of the 4th transistor T4.
Herein, the 4th transistor T4 is driving transistor.
It should be noted that the standby drive module 20 can also include the multiple switch in parallel with third transistor T3
Transistor, and/or, the multiple driving transistors in parallel with the 4th transistor T4 can also be included.Above-mentioned is only to standby drive
Dynamic model block 20 for example, other are with the function identical structure of standby drive module 20, this is no longer going to repeat them, but all
Protection domain of the present utility model should be belonged to.
As shown in Figures 2 and 3, the fusing module 40 includes the first fuse element FU1；First fuse element FU1 can be with
Including fuse or protective tube etc., the element of fuse function is realized by voltage change.
Wherein, one end of the first fuse element FU1 connects main drive module 10, the other end and light emitting module 30 and fusing control
Molding block 50 is all connected with.When main drive module 10 is said structure, one end connection transistor seconds of the first fuse element FU1
Second pole of T2.
It should be noted that above-mentioned is only for example, other and the function of fusing module 40 to fusing module 40
This is no longer going to repeat them for identical structure, but should all belong to protection domain of the present utility model.
As shown in Figures 2 and 3, fusing control module 50 includes the 5th transistor T5.
Wherein, the grid connection signal input part S of the 5th transistor T5, the first pole connection fusing module 40, the second pole connects
Meet earth terminal GND.When the module 40 that fuses is said structure, first pole of third transistor T5 connects the first fuse element FU1
The other end.
It should be noted that the fusing control module 50 can also include the multiple switch in parallel with the 5th transistor T5
Transistor.Above-mentioned is only for example, other and the function identical of fusing control module 50 to fusing control module 50
This is no longer going to repeat them for structure, but should all belong to protection domain of the present utility model.
As shown in Figures 2 and 3, handover module 60 includes the 6th transistor T6.
The grid connection control line CL of the 6th transistor T6, the first pole connects standby drive module 20, the second pole connection hair
Optical module 30.When standby drive module is said structure, first pole of the 6th transistor T6 connects the of the 4th transistor T4
Two poles.
It should be noted that the handover module 60 can also include the multiple switch crystal in parallel with the 6th transistor T6
Pipe.It is above-mentioned be only to handover module 60 for example, other with the function identical structure of handover module 60 herein no longer
Repeat one by one, but should all belong to protection domain of the present utility model.
Light emitting module 30 includes luminescent device.In Fig. 2 and Fig. 3 with light emitting module 30 as OLED (Organic Light
Emitting Diode, Organic Light Emitting Diode) illustrated.
The anode of the luminescent device is all connected with fusing module 40 and handover module 60, negative electrode connection second voltage end
V2.When fusing module 40 and handover module 60 are said structure, the anode of luminescent device is another with the first fuse element FU1's
End, second pole of the 6th transistor T6 is all connected with.
It should be noted that luminescent device is not limited to OLED, can also be including LED (Light Emitting
Diode, light emitting diode) drive luminescent device in interior various electric currents.
Based on above-mentioned, as shown in figure 4, the image element circuit also includes switching control module 70, connect respectively control line CL,
Main drive module 10, fusing module 40, tertiary voltage end V3, the 4th voltage end V4 and signal input part S, in tertiary voltage
Under end V3, the control of the 4th voltage end V4 and signal input part S, when fusing module 40 makes light emitting module 30 and main drive module 10
Connection disconnect when, to control line CL be input into secondary signal, connect light emitting module 30 and standby drive module 20；Otherwise, to
Control line CL is input into the first signal, remains open light emitting module 30 and standby drive module 20.
I.e.：When scan signal line SL is input into scanning signal, during data signal line DL input shutdown signals, signal input part S
The 4th signal is input into, in the case, if in the presence of normal bright bad, the output driving current signal of main drive module 10, and main drive
The driving current signal of the output of dynamic model block 10 flows to earth terminal GND, so that the connection of light emitting module 30 and main drive module 10
Disconnect, with the normal bright bad problem for solving to cause due to main drive module 10.
Based on this, it is input under the control of the 4th signal in tertiary voltage end V3, the 4th voltage end V4, signal input part S, with
And because the electric current of the output of main drive module 10 has part to flow to switching control module 70, and cause there is voltage to be applied to switching control
In the presence of molding block 70, switching control module 70 is input into secondary signal to control line CL, so that light emitting module 30 and standby drive
Dynamic model block 20 is connected, and drives light emitting module 30 to light by standby drive module 20.Wherein, in order to ensure main drive module 10 and hair
After optical module 30 disconnects, standby drive module 20 drives light emitting module 30 to light, and control line CL need to continue input secondary signal.
On this basis, when scan signal line SL is input into scanning signal, during data signal line DL input data signals, signal
Input S is input into the 3rd signal, it is ensured that standby drive module 20 drives light emitting module 30 to light.
When scan signal line SL is input into scanning signal, during data signal line DL input shutdown signals, signal input part S inputs
4th signal, if in the absence of often it is bright bad, main drive module 10 does not have output driving current signal, even if signal input part S
The 4th signal is input into, also due to main drive module 10 does not have output driving current signal, on fusing module 40 without influence, light mould
Block 30 and main drive module 10 are connected still through fusing module 40.
Based on this, it is input under the control of the 4th signal in tertiary voltage end V3, the 4th voltage end V4, signal input part S, is cut
Change control module 70 and be input into the first signal to control line CL, remain open light emitting module 30 and standby drive module 20.
On this basis, when scan signal line SL is input into scanning signal, during data signal line DL input data signals, signal
Input S is input into the 3rd signal, and control line CL is input into the first signal, it is ensured that main drive module 10 drives light emitting module 30 to send out
Light.
The utility model embodiment by setting switching control module 70 in image element circuit, and make it with control line CL,
Main drive module 10, fusing module 40, tertiary voltage end V3, the 4th voltage end V4 and signal input part S connections, can be defeated in signal
When entering to hold S to be input into four signals, if fusing module 40 disconnects the connection of light emitting module 30 and main drive module 10, the 3rd
Under voltage end V3, the control of the 4th voltage end V4, and in the presence of main drive module 10, believe to control line CL inputs second
Number, realize, when the connection of light emitting module 30 and main drive module 10 disconnects, light emitting module 30 and standby drive module being made automatically
The purpose of 20 connections；And the 4th signal is input into signal input part S, but on fusing module 40 without influence, or in signal input part S
When being input into three signals, it is ensured that the normal work of image element circuit.
It is further preferred that as shown in figure 5, switching control module 70 includes the 7th transistor T7, the 8th transistor T8, the
Nine transistor T9 and the second fuse element FU2.
Specifically, the grid of the 7th transistor T7 and the first pole connection tertiary voltage end V3, the fusing of the second pole connection second
One end of element FU2.
The other end of the second fuse element FU2 is all connected with first pole of the 8th transistor T8 and control line CL.
The grid of the 8th transistor T8 and the second pole connect the 4th voltage end V4.
The grid connection signal input part S of the 9th transistor T9, the first pole connects first pole of the 8th transistor T8, second
Pole is all connected with main drive module 10 and fusing module 40.When main drive module 10 and fusing module 40 are said structure, the
Second pole of nine transistor T9 is all connected with one end of second pole of transistor seconds T2 and the first fuse element FU1.
Wherein, the breadth length ratio of the 7th transistor T7 is more than 10 times of the breadth length ratio of the 8th transistor T8；7th transistor
T7 and the 8th transistor T8 are normally opened；7th transistor T7 is P-type transistor, and the 8th transistor T8 and the 9th transistor T9 is N-type
Transistor；Or, the 7th transistor T7 is N-type transistor, and the 8th transistor T8 and the 9th transistor T9 is P-type transistor.
Specifically, when signal input part S is input into four signals, the 9th transistor T9 conductings, based on this, if main driving mould
Block 10 still has driving current signal to export when data signal line DL is input into shutdown signal, then the electricity of the output of main drive module 10
Stream has part to flow to switching control module 70, and causes have voltage to be applied in switching control module 70, and by turn on the
Nine transistor T9 are applied to the other end of the second fuse element FU2, so that the voltage at the second fuse element FU2 two ends occurs
Change, the second fuse element FU2 fusing, the 4th voltage end V4 is input into secondary signal to control line CL, makes light emitting module 30 and standby
Connected with drive module 20.
On this basis, when scan signal line SL is input into scanning signal, during data signal line DL input data signals, signal
Input S is input into the 3rd signal, it is ensured that standby drive module 20 drives light emitting module 30 to light.
When signal input part S is input into four signals, if main drive module 10 is input into shutdown signal in data signal line DL
When, there is no driving current signal to export, then the voltage at the second fuse element FU2 two ends is not changed in, now due to the 7th crystal
The breadth length ratio of pipe T7 is more than 10 times of the breadth length ratio of the 8th transistor T8, therefore, the resistance of the 8th transistor T8 is more than the 7th
The resistance of transistor T7.Based on this, when the 4th voltage end V4 is high voltage end (i.e. secondary signal is high voltage signal), the 3rd electricity
When pressure side V3 is low-voltage end, low voltage signal (i.e. the first signal) can be input into control line CL, make light emitting module 30 and standby
Drive module 20 is remained open；When the 4th voltage end V4 is low-voltage end (i.e. secondary signal is low voltage signal), tertiary voltage
When end V3 is high voltage end, light emitting module 30 and standby drive can be made to control line CL high input voltages signal (i.e. the first signal)
Dynamic model block 20 is remained open.
On this basis, when scan signal line SL is input into scanning signal, during data signal line DL input data signals, signal
Input S is input into the 3rd signal, and the 9th transistor T9 ends, and the voltage at the second fuse element FU2 two ends is not changed in, the 3rd
Under the control of voltage end V3 and the 4th voltage end V4, the first signal is input into control line CL, it is ensured that primary drive module 10 is driven
Dynamic light emitting module 30 lights.
It should be noted that first, when the 7th transistor T7 is P-type transistor, the 8th transistor T8 and the 9th transistor
When T9 is N-type transistor, tertiary voltage end V3 is low-voltage end, and the 4th voltage end V4 is high voltage end.Based on this, when switching mould
When block 60 includes the 6th transistor T6, the 6th transistor T6 is N-type.
When the 7th transistor T7 is N-type transistor, and the 8th transistor T8 and the 9th transistor T9 is P-type transistor, the
Three voltage end V3 are high voltage end, and the 4th voltage end V4 is low-voltage end.Based on this, when handover module 60 includes the 6th transistor
During T6, the 6th transistor T6 is p-type.
Wherein, when the control module 50 that fuses includes the 5th transistor T5, type and the 9th crystal of the 5th transistor T5
The type of pipe T9 is consistent.
The second, the first fuse element FU1 and the second fuse element FU2 can be with identical, it is also possible to different.
3rd, the switching control module 70 can also include multiple 7th transistor T7 in parallel, including multiple in parallel
The 8th transistor T8, including the 9th multiple in parallel transistor T9.Above-mentioned is only illustrating to switching control module 70
Bright, this is no longer going to repeat them with the function identical structure of switching control module 70 for other, but it is new all to belong to this practicality
The protection domain of type.
Based on the above-mentioned description to each module physical circuit, when the 5th transistor T5 in Fig. 5, the 6th transistor T6,
Eight transistor T8, the 9th transistor T9 are N-type transistor, and other transistors are P-type transistor, and tertiary voltage end V3 is low electricity
When pressure side, the 4th voltage end V4 are high voltage end, the course of work to image element circuit as shown in Figure 5 is described in detail.
Wherein, in the equivalent circuit diagram that the utility model embodiment is provided, the transistor in cut-off state is represented with beating "×", is in
The fuse element of blown state is represented with beating "×".
With reference to sequential as shown in Figure 7a, closed when scan signal line SL is input into scanning signal, data signal line DL inputs
During signal, under normal circumstances, as shown in Figure 6 a, the first transistor T1 conductings, transistor seconds T2 cut-offs, third transistor T3 lead
Logical, the 4th transistor T4 cut-offs；Meanwhile, signal input part S inputs bias (Bias) signal (i.e. the 4th signal), the 5th transistor
T5 and the 9th transistor T9 is turned on, but because transistor seconds T2 is exported without driving current signal, the first fuse element FU1 two ends
Voltage it is unchanged, the first fuse element FU1 does not fuse, and main drive module 10 and light emitting module 30 keep connection, and to the
The voltage at two fuse element FU2 two ends is also unchanged, and the second fuse element FU2 does not fuse, and believes to control line CL input low-voltages
Number (i.e. the first signal), the 6th transistor T6 cut-offs, standby drive module 20 and light emitting module 30 are remained open.
On this basis, when scan signal line SL is input into scanning signal, data signal line DL input data signals, such as scheme
Shown in 6b, the first transistor T1, transistor seconds T2, third transistor T3, the 4th transistor T4 are both turned on；Meanwhile, signal is defeated
Enter to hold S to be input into shutdown signal (i.e. the 3rd signal), the 5th transistor T5, the 9th transistor T9, the 6th transistor T6 are turned off, by
Transistor seconds T2 drives luminescent device to light.
When scan signal line SL is input into shutdown signal, data signal line DL input data signals, the first transistor T1, the
Two-transistor T2, third transistor T3, the 4th transistor T4 are turned off；Signal input part S is input into shutdown signal.
With reference to sequential as shown in Figure 7b, closed when scan signal line SL is input into scanning signal, data signal line DL inputs
During signal, if transistor seconds T2 due to design and the reason such as technology stability cause it is approximate normally opened, as fig. 6 c, the
One transistor T1 is turned on, and transistor seconds T2 has driving current signal to export；Meanwhile, signal input part S inputs bias (Bias)
Signal (i.e. the 4th signal), the 5th transistor T5 and the 9th transistor T9 are turned on, the driving current for exporting transistor seconds T2
Signal flows to earth terminal GND and the 9th transistor T9 respectively, now because the voltage at the first fuse element FU1 two ends becomes
Change so that the first fuse element FU1 fuses, the connection of main drive module 10 and light emitting module 30 disconnects, and due to second molten
The voltage at disconnected element FU2 two ends also changes so that the second fuse element FU2 also fuses, to control line CL high input voltages
Signal (i.e. secondary signal), the 6th transistor T6 is normally opened, and standby drive module 20 and light emitting module 30 are connected.Wherein, in this feelings
Under condition, no matter signal input part S input shutdown signal or bias voltage signal, do not affect the conducting of the 6th transistor T6.
On this basis, when scan signal line SL is input into scanning signal, data signal line DL input data signals, such as scheme
Shown in 6d, the first transistor T1, transistor seconds T2, third transistor T3, the 4th transistor T4 conductings；Meanwhile, signal input
End S is input into shutdown signal (i.e. the 3rd signal), and the 5th transistor T5 and the 9th transistor T9 ends, and is driven by the 4th transistor T4
Luminescent device lights.
When scan signal line SL is input into shutdown signal, data signal line DL input data signals, the first transistor T1, the
Two-transistor T2, third transistor T3, the 4th transistor T4 are turned off；Signal input part S is input into shutdown signal.
It should be noted that the utility model is to except transistor seconds T2 and the 4th transistor T4, i.e. driving transistor
First pole of transistor in addition, the second pole do not limit, and first extremely can be drain electrode, and second extremely can be source electrode；Or the
One extremely can be source electrode, and second extremely can be drain electrode.When driving transistor is P-type transistor, due to the source electrode of P-type transistor
Voltage is higher than drain voltage, therefore, the first extremely source electrode of driving transistor, second extremely drains.When driving transistor is N-type
During transistor, with P-type transistor contrast.
The utility model embodiment also provides a kind of display device, including upper any one described image element circuit.
In view of silicon substrate OLED display, its resolution ratio is higher, easily occur pixel often it is bright bad, it is therefore preferable that institute
Display device is stated for OLED display.
The display device of the utility model embodiment has the image element circuit phase provided with the utility model previous embodiment
Same beneficial effect, has been carried out describing in detail in the aforementioned embodiment due to image element circuit, and here is omitted.
The utility model embodiment is as described above any one for driving also by a kind of driving method of image element circuit
Image element circuit is planted, as shown in figure 8, methods described includes：
S10, when testing the image element circuit, scan signal line SL input scanning signal, data signal line DL
Input shutdown signal, signal input part S is input into the 4th signal, when main drive module 10 has driving current signal to export, to make
The connection of light emitting module 30 and main drive module 10 disconnects.
Wherein, the 4th signal can be bias voltage signal.
Herein, if the image element circuit has often bright bad, the driving of the output of main drive module 10 to the module 40 that fuses
Current signal flows to earth terminal GND, and the connection of light emitting module 30 and main drive module 10 disconnects；Otherwise, even if signal input part S
The 4th signal is input into, also due to main drive module 10 is without driving current signal output, light emitting module 30 and main drive module 10
Connected still through fusing module 40.
S20, when light emitting module 30 and main drive module 10 connection disconnect when, control line CL input secondary signal, make hair
Optical module 30 and standby drive module 20 are connected；When light emitting module 30 and main drive module 10 remain in that connection, control line
CL is input into the first signal, remains open light emitting module 30 and standby drive module 20.
S30, in the image element circuit normal work, scan signal line SL input scanning signals, data signal line DL is defeated
Enter data-signal, signal input part S is input into the driving current of the 3rd signal, main drive module 10 or the output of standby drive module 20
Signal drives light emitting module 30 to light.
Wherein, the 3rd signal can be shutdown signal.
Herein, when the driving current signal of the output of standby drive module 20 drives light emitting module 30 to light, control line CL
Secondary signal is input into always；When the driving current signal of the output of main drive module 10 drives light emitting module 30 to light, control line
CL is input into the first signal always.
The utility model embodiment provides a kind of driving method of image element circuit, is scanned by being input into scan signal line SL
Signal, shutdown signal is input into data signal line DL, and under the control of signal input part S, if the image element circuit is present often
Bright bad, then the output of main drive module 10 to the driving current signal of fusing module 40 flows to earth terminal GND, the He of light emitting module 30
The connection of main drive module 10 disconnects, thus can solve the problems, such as it is often bright bad, otherwise because main drive module 10 does not drive
Current signal is exported, and light emitting module 30 and main drive module 10 keep connection, and luminous mould is driven still through main drive module 10
Block 30 is lighted.On this basis, if the image element circuit exist it is often bright bad, light emitting module 30 and main drive module 10
Connection disconnects, and by the control of control line CL, can connect light emitting module 30 and standby drive module 20, so that standby driving mould
Block 20 drives light emitting module 30 to be lighted.Wherein, when the image element circuit normal work, scan signal line SL input scannings
The driving current signal of signal, data signal line DL input data signals, main drive module 10 or the output of standby drive module 20
Light emitting module 30 is driven to light.Based on this, it is known that, the utility model embodiment is being solved often on the basis of bright bad problem, no
Pixel can be caused to damage, and can reach the purpose repaired to pixel, it is to avoid influence product due to often bright bad
Quality and yield.
Preferably, control line CL inputs the first signal or secondary signal, including：V3, the 4th voltage end at tertiary voltage end
Under the control of V4, signal input part S be input into four signals when, if in the presence of often it is bright bad, switching control module 70 is to control
Line CL is input into secondary signal, otherwise, the first signal is input into control line CL；When signal input part S is input into three signals, if hair
The connection of optical module 30 and main drive module 10 disconnects, then switching control module 70 is input into secondary signal to control line CL, otherwise
The first signal is input into control line CL.
So, can be when signal input part S be input into four signals, if fusing module 40 makes light emitting module 30 and main driving mould
The connection of block 10 disconnects, then under tertiary voltage end V3, the control of the 4th voltage end V4, and main drive module 10 effect
Under, secondary signal is input into control line CL, realize, when the connection of light emitting module 30 and main drive module 10 disconnects, hair being made automatically
Optical module 30 and the purpose of the connection of standby drive module 20；And the 4th signal is input into signal input part S, but to fusing module 40
Without influence, or when signal input part S is input into three signals, it is ensured that the normal work of image element circuit.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (10)
1. a kind of image element circuit, it is characterised in that including：Main drive module, standby drive module, light emitting module, fusing module,
Fusing control module and handover module；
The main drive module, respectively connect scan signal line, data signal line, first voltage end and fusing module, for
Under the control of the scan signal line and the data signal line, the voltage signal that the first voltage end is input into is converted into drive
Streaming current signal, and export to the fusing module；
The fusing module, is also connected with fusing control module and the light emitting module, in the fusing control module
Control under, disconnect the connection of the light emitting module and the main drive module；
The fusing control module, is also connected with signal input part and earth terminal, under the control of the signal input part, making
The main drive module is exported to the driving current signal of the fusing module and flows to the earth terminal, so that the light emitting module
Connection with the main drive module disconnects；
The standby drive module, connects the scan signal line, the data signal line, the first voltage end and institute respectively
Handover module is stated, under the control of the scan signal line and the data signal line, by first voltage end input
Voltage signal be converted into driving current signal, and export to the handover module；
The handover module, is also connected with the light emitting module and control line, under the control of the control line input signal,
Connect the standby drive module and the light emitting module；
The light emitting module, is also connected with second voltage end, under the control at the second voltage end, by the main driving
Module or the driving current signal of the standby drive module output are lighted.
2. image element circuit according to claim 1, it is characterised in that the main drive module includes the first transistor, the
Two-transistor and the first storage capacitance；
The grid of the first transistor connects the scan signal line, and the first pole connects the data signal line, and the second pole connects
Connect the grid of the transistor seconds；
First pole of the transistor seconds connects the first voltage end, and the second pole connects the fusing module；
One end of first storage capacitance connects the grid of the transistor seconds, and the other end connects the transistor seconds
Second pole, or, the other end connects the first pole of the transistor seconds.
3. image element circuit according to claim 1, it is characterised in that the standby drive module include third transistor,
4th transistor and the second storage capacitance；
The grid of the third transistor connects the scan signal line, and the first pole connects the data signal line, and the second pole connects
Connect the grid of the 4th transistor；
First pole of the 4th transistor connects the first voltage end, and the second pole connects the handover module；
One end of second storage capacitance connects the grid of the 4th transistor, and the other end connects the 4th transistor
Second pole, or, the other end connects the first pole of the 4th transistor.
4. image element circuit according to claim 1, it is characterised in that the fusing module includes the first fuse element；
One end of first fuse element connects the main drive module, the other end and the light emitting module and the fusing control
Molding block is all connected with.
5. image element circuit according to claim 1, it is characterised in that the fusing control module includes the 5th transistor；
The grid of the 5th transistor connects the signal input part, and the first pole connects the fusing module, the connection of the second pole
The earth terminal.
6. image element circuit according to claim 1, it is characterised in that the handover module includes the 6th transistor；
The grid of the 6th transistor connects the control line, and the first pole connects the standby drive module, the connection of the second pole
The light emitting module.
7. image element circuit according to claim 1, it is characterised in that the light emitting module includes luminescent device；
The anode of the luminescent device is all connected with the fusing module and the handover module, and negative electrode connects the second voltage
End.
8. the image element circuit according to claim any one of 1-7, it is characterised in that also including switching control module, respectively
Connect the control line, the main drive module, the fusing module, tertiary voltage end, the 4th voltage end and the signal defeated
Enter end, under the control of the tertiary voltage end, the 4th voltage end and the signal input part, when the fusing mould
When block disconnects the connection of the light emitting module and the main drive module, secondary signal is input into the control line, made described
Light emitting module and the standby drive module connection；Otherwise, to the control line be input into the first signal, make the light emitting module and
The standby drive module is remained open.
9. image element circuit according to claim 8, it is characterised in that the switching control module include the 7th transistor,
8th transistor, the 9th transistor and the second fuse element；
The grid of the 7th transistor and the first pole connect the tertiary voltage end, and the second pole connects second fuse element
One end；
The other end of second fuse element is all connected with the first pole of the 8th transistor and the control line；
The grid of the 8th transistor and the second pole connect the 4th voltage end；
The grid of the 9th transistor connects the signal input part, and the first pole connects the first pole of the 8th transistor,
Second pole is all connected with the main drive module and the fusing module；
Wherein, the breadth length ratio of the 7th transistor is more than 10 times of the breadth length ratio of the 8th transistor；
7th transistor and the 8th transistor are normally opened；7th transistor is P-type transistor, the 8th crystal
Pipe and the 9th transistor are N-type transistor；Or, the 7th transistor is N-type transistor, the 8th transistor and described
9th transistor is P-type transistor.
10. a kind of display device, it is characterised in that including the image element circuit described in claim any one of 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621413302.2U CN206271396U (en) | 2016-12-21 | 2016-12-21 | A kind of image element circuit and display device |
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|---|---|---|---|
| CN201621413302.2U CN206271396U (en) | 2016-12-21 | 2016-12-21 | A kind of image element circuit and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106531079A (en) * | 2016-12-21 | 2017-03-22 | 京东方科技集团股份有限公司 | Pixel circuit and driving method and display device thereof |
| WO2018113324A1 (en) * | 2016-12-21 | 2018-06-28 | 京东方科技集团股份有限公司 | Pixel circuit, driving method therefor and display device |
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| CN106531079A (en) * | 2016-12-21 | 2017-03-22 | 京东方科技集团股份有限公司 | Pixel circuit and driving method and display device thereof |
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| WO2018113324A1 (en) * | 2016-12-21 | 2018-06-28 | 京东方科技集团股份有限公司 | Pixel circuit, driving method therefor and display device |
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| CN111179767A (en) * | 2018-10-24 | 2020-05-19 | 乐金显示有限公司 | Display panel and method for electrically isolating light emitting diodes in a display panel |
| CN111179848A (en) * | 2020-01-02 | 2020-05-19 | 深圳市华星光电半导体显示技术有限公司 | Pixel circuit, display panel and display device thereof |
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