CN206271397U - A kind of OLED pixel circuit and display device - Google Patents
A kind of OLED pixel circuit and display device Download PDFInfo
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- CN206271397U CN206271397U CN201621408406.4U CN201621408406U CN206271397U CN 206271397 U CN206271397 U CN 206271397U CN 201621408406 U CN201621408406 U CN 201621408406U CN 206271397 U CN206271397 U CN 206271397U
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Abstract
The utility model provides a kind of OLED pixel circuit and display device, is related to display technology field, and the sub-pixel being short-circuited can be avoided to influence the display of its periphery sub-pixel.The OLED pixel circuit includes：Drive module, light emitting module and short circuit protection module；The drive module, scanning signal input, data signal input, first voltage end and the light emitting module are connected respectively, for under the control at the scanning signal input, the data signal input and first voltage end, driving light emitting module to light；The light emitting module is also connected with second voltage end, under the control at the drive module and the second voltage end, being lighted；The short circuit protection module connects the drive module and the light emitting module, for when the light emitting module is short-circuited, controlling the drive module to close.
Description
Technical field
The utility model is related to display technology field, more particularly to a kind of OLED pixel circuit and display device.
Background technology
With the fast development of multimedia technology, OLED (Organic Light-Emitting Diode, organic light emission two
Pole pipe) due to can self-luminous, high-contrast, colour gamut wide, preparation process is simple, it is low in energy consumption, be easily achieved Flexible Displays etc.
Advantage, as light-emitting component important in display device.
Wherein, especially AM-OLED (Active Matrix/Organic Light Emitting Diode, it is active
Matrix organic LED) display panel have it is warm without visual angle limitation, low manufacturing cost, answer speed high, low-power consumption, work
Degree scope it is big, lightweight, can be used for the DC driven of portable machine and can with hardware device miniaturization and it is lightening the advantages of,
And turn into the focus of research.
As shown in figure 1, in the dot structure of AM-OLED display panels, one group of crystal is integrated with each sub-pixel
Pipe and the first electric capacity, by the drive control to transistor and the first electric capacity, realize the control to the electric current of the OLED in sub-pixel
System, so as to drive OLED to light.
However, because each film layer between the anode and negative electrode of OLED is relatively thin in itself, and film layer has a foreign matter, or borehole,
The techniques such as climbing are not controlled, and can further result in that film layer is thinning, are made resistance between the anode of OLED and negative electrode smaller and are sent out
Raw short circuit so that the voltage at the V2 ends being connected with negative electrode is raised.And the V2 ends between each sub-pixel are conductings, therefore occur short
The V2 terminal voltages of the sub-pixel on road are raised, and easily cause the V2 terminal voltages of its periphery sub-pixel also to raise, so as to influence periphery
Pressure difference in pixel between OLED negative electrodes and anode, and then influence the display of periphery sub-pixel.
Utility model content
Embodiment of the present utility model provides a kind of OLED pixel circuit and display device, can avoid the sub- picture being short-circuited
Element influences the display of its periphery sub-pixel.
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 OLED pixel circuit, including drive module, light emitting module and short circuit protection module；
The drive module, connects scanning signal input, data signal input, first voltage end and the light emitting module respectively,
For under the control at the scanning signal input, the data signal input and first voltage end, driving light emitting module
It is luminous；The light emitting module is also connected with second voltage end, under the control at the drive module and the second voltage end,
Lighted；The short circuit protection module connects the drive module and the light emitting module, in light emitting module hair
During raw short circuit, the drive module is controlled to close.
Preferably, the drive module includes the first transistor, the first electric capacity and transistor seconds；The first transistor
Grid connect the scanning signal input, the first pole connects the data signal input, the second pole connection described second
The grid of transistor；First pole of the transistor seconds connects the first voltage end, and the second pole connects the light emitting module；
The first end of first electric capacity connects the second pole of the first transistor, and the second end connects the first of the transistor seconds
Pole；Wherein, the transistor seconds is N-type transistor.
Preferably, the drive module includes the first transistor, the first electric capacity and transistor seconds；The first transistor
Grid connect the scanning signal input, the first pole connects the data signal input, the second pole connection described second
The grid of transistor；First pole of the transistor seconds connects the first voltage end, and the second pole connects the light emitting module；
The first end of first electric capacity connects the second pole of the first transistor, and the second end connects the second of the transistor seconds
Pole；Wherein, the transistor seconds is N-type transistor.
Preferably, the light emitting module includes OLED, and the anode of the OLED connects the drive module, negative electrode connection institute
State second voltage end.
Preferably, the short circuit protection module includes third transistor and the second electric capacity；The grid of the third transistor
Extremely it is connected with the light emitting module and the drive module with first, the second pole connects the first end of second electric capacity；Institute
The second end for stating the second electric capacity connects the drive module；Wherein, the third transistor is P-type transistor.
It is further preferred that the drive module includes the first transistor, the first electric capacity and transistor seconds；It is described luminous
Module includes OLED；The grid of the third transistor and the first pole respectively with the second pole of the transistor seconds and described
The anode of OLED is all connected with；Second end of second electric capacity and the second pole of the first transistor and the transistor seconds
Grid be all connected with.
Preferably, the short circuit protection module includes the 4th transistor and the second electric capacity；The grid of the 4th transistor
It is all connected with the light emitting module and the drive module, the first pole connects with the light emitting module and the second voltage end
Connect, the second pole connects the first end of second electric capacity；Second end of second electric capacity connects the drive module；Wherein,
4th transistor is P-type transistor.
It is further preferred that the drive module includes the first transistor, the first electric capacity and transistor seconds；It is described luminous
Module includes OLED；The grid of the 4th transistor connects with the second pole of the transistor seconds and the anode of the OLED
Connect, the first pole is all connected with the negative electrode of the OLED and the second voltage end；Second end of second electric capacity and described
Second pole of one transistor and the grid of the transistor seconds are all connected with.
Preferably, the first transistor is N-type transistor.
A kind of second aspect, there is provided display device, including the OLED pixel circuit described in first aspect.
The utility model embodiment provides a kind of OLED pixel circuit and display device, adds by OLED pixel circuit
Enter short circuit protection module, and in the light emitting module normal luminous of sub-pixel, short circuit protection module is closed；And work as sub-pixel
After light emitting module is short-circuited, short circuit protection module is then opened, and controls drive module to close so that first voltage end and data
The signal of wire size input cannot export light emitting module, so, even if light emitting module is short-circuited, connect with light emitting module
The signal at the second voltage end for connecing will not also be raised, but remain in that its original signal intensity, so as to a certain son can be avoided
Pixel influences the normal display of its periphery sub-pixel after being short-circuited.
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 of OLED pixel circuit that Fig. 1 is provided for prior art；
A kind of structural representation of OLED pixel circuit that Fig. 2 is provided for the utility model embodiment；
Fig. 3 is a kind of concrete structure schematic diagram one of each module in Fig. 2；
Fig. 4 is a kind of concrete structure schematic diagram two of each module in Fig. 2；
Fig. 5 is a kind of concrete structure schematic diagram three of each module in Fig. 2；
Fig. 6 is a kind of concrete structure schematic diagram four of each module in Fig. 2.
Reference
10- drive modules；20- light emitting modules；30- short circuit protection modules；GATE- scanning signal inputs；DATA- data
Signal input part；V1- first voltages end；V2- second voltages end；The electric capacity of C1- first；The electric capacity of C2- second；T1- the first transistors；
T2- transistor secondses；T3- third transistor.
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 OLED pixel circuit, as shown in Fig. 2 including drive module 10, luminous mould
Block 20 and short circuit protection module 30.
Drive module 10, connects scanning signal input GATE, data signal input DATA, first voltage end V1 respectively
With light emitting module 20, for the control in scanning signal input GATE, data signal input DATA and first voltage end V1
Under, drive light emitting module 20 to light.
Light emitting module 20 is also connected with second voltage end V2, under the control of drive module 10 and second voltage end V2,
Lighted.
Short circuit protection module 30 connects drive module 10 and light emitting module 20, for when light emitting module 20 is short-circuited,
Control drive module 10 is closed.
The utility model embodiment provides a kind of OLED pixel circuit, by adding short-circuit protection in OLED pixel circuit
Module 30, and in 20 normal luminous of light emitting module of sub-pixel, short circuit protection module 30 is closed；And work as the luminous of sub-pixel
After module 20 is short-circuited, short circuit protection module 30 is then opened, and controls drive module 10 to close so that first voltage end V1 and
The signal of data wire size input DATA cannot export light emitting module 20, so, even if light emitting module 20 is short-circuited,
The signal of the second voltage end V2 being connected with light emitting module 20 will not also be raised, but remain in that its original signal intensity,
So as to avoid a certain sub-pixel that the normal display of its periphery sub-pixel is influenceed after being short-circuited.
Below in conjunction with specific embodiment, the concrete structure to modules in Fig. 2 is described in detail.
Embodiment one
Embodiment one provides a kind of OLED pixel circuit, as shown in figure 3, drive module 10 includes the first transistor T1, the
One electric capacity C1 and transistor seconds T2.
The grid connection scanning signal input GATE of the first transistor T1, the first pole connection data signal input
DATA, the second pole connects the grid of transistor seconds T2.
The first pole connection first voltage end V1 of transistor seconds T2, the second pole connection light emitting module 20.
Second pole of the first end connection the first transistor T1 of the first electric capacity C1, the of the second end connection transistor seconds T2
One pole.
Or, as shown in figure 4, second pole of the first end connection the first transistor T1 of the first electric capacity C1, the connection of the second end
Second pole of transistor seconds T2.
Light emitting module 20 includes OLED, the anode connection drive module 10 of OLED, negative electrode connection second voltage end V2.
Short circuit protection module 30 includes third transistor T3 and the second electric capacity C2, the grid of third transistor T3 and the first pole
It is connected with light emitting module 20 and drive module 10, the second pole connects the first end of the second electric capacity C2.
The second end connection drive module 10 of the second electric capacity.
Wherein, transistor seconds T2 is N-type transistor；Third transistor T3 is P-type transistor.
Further specifically, the first pole connection first voltage end V1 of transistor seconds T2, the second pole connects the sun of OLED
Pole.
As shown in figure 3, second pole of the first end of the first electric capacity C1 with the first transistor T1 and the grid of transistor seconds T2
Pole is all connected with, and the second end is all connected with first pole of transistor seconds T2 and first voltage end V1.
Or, as shown in figure 4, second pole of the first end of the first electric capacity C1 with the first transistor T1 and transistor seconds T2
Grid be all connected with, the second end is all connected with second pole of transistor seconds T2 and the anode of OLED.
The grid of third transistor T3 is all connected with second pole of transistor seconds T2 and the anode of OLED；First pole and the
Second pole of two-transistor T2 and the anode of OLED are all connected with；Second pole is connected with the first end of the second electric capacity C2.
Second end of the second electric capacity C2 is all connected with the grid of second pole of the first transistor T1 and transistor seconds T2.
It should be noted that first, the first transistor T1 can be N-type transistor, or P-type transistor.This reality
It is N-type transistor with the preferred the first transistor T1 of new embodiment.With the first transistor T1 as N-type transistor in Fig. 3 and Fig. 4
Carry out example.
Second, the transistor that the utility model embodiment is provided can be enhancement transistor, or depletion type is brilliant
Body pipe；The first of the transistor that the utility model embodiment is provided extremely can be source electrode, and second extremely can be to drain, or crystal
The first of pipe extremely can be drain electrode, and the second extremely source electrode, the utility model is not construed as limiting to this, and the type according to transistor is reasonable
Selection.
3rd, it is that V2 is constant at second voltage end with first voltage end V1 constant output high level in the utility model implementation
The explanation carried out as a example by output low level.
4th, after third transistor T3 openings, be input into for data-signal by third transistor T3 by second voltage end V2
The high voltage signal that end DATA is input to the second electric capacity C2 is dragged down, and is believed with the high voltage for avoiding data signal input DATA from being input into
Number output to OLED anode.
More than, as shown in Figure 3 and Figure 4, when scanning signal input GATE is input into scanning signal, the first transistor T1 beats
Open, data signal input DATA input data signals, the grid of transistor seconds T2 is arrived in output after the first transistor T1, together
When to the first electric capacity C1 charge.Transistor seconds T2 is P-type transistor, and under high voltage signal control, transistor seconds T2 beats
Open, the high voltage signal of first voltage end V1 is exported to the anode of OLED through transistor seconds T2, while second voltage end V2
Low voltage signal is exported to the negative electrode of OLED, drives OLED to light.Wherein, third transistor T3 is N-type transistor, and it is in grid
Opened after receiving low voltage signal, in the case of normal display, the anode of OLED exports electricity high to the grid of third transistor T3
Pressure signal, third transistor T3 cut-offs.
When the anode and negative electrode of OLED are short-circuited, the current potential reduction on anode, now, anode is to third transistor T3's
Grid exports low voltage signal, and control third transistor T3 is opened, and the low voltage signal on anode is exported through third transistor T3
To the grid of transistor seconds T2, under low voltage signal control, transistor seconds T2 cut-offs.The high voltage of first voltage end V1
Signal stops being exported to anode, and be input to for data signal input DATA by third transistor T3 by second voltage end V2
The high voltage signal of the second electric capacity C2 is dragged down, and is made the high voltage signal of data signal input DATA and cannot also be exported anode.
Based on this, after the anode and negative electrode of OLED are short-circuited, low potential on negative electrode will not because and anode on height electricity
Position neutralizes and raises, therefore does not interfere with the signal on the V2 of second voltage end.
Embodiment two
Embodiment two provides a kind of OLED pixel circuit, as shown in figure 5, drive module 10 includes the first transistor T1, the
One electric capacity C1 and transistor seconds T2.
The grid connection scanning signal input GATE of the first transistor T1, the first pole connection data signal input
DATA, the second pole connects the grid of transistor seconds T2.
The first pole connection first voltage end V1 of transistor seconds T2, the second pole connection light emitting module 20.
Second pole of the first end connection the first transistor T1 of the first electric capacity C1, the of the second end connection transistor seconds T2
One pole.
Or, as shown in fig. 6, second pole of the first end connection the first transistor T1 of the first electric capacity C1, the connection of the second end
Second pole of transistor seconds T2.
Light emitting module 20 includes OLED, the anode connection drive module 10 of OLED, negative electrode connection second voltage end V2.
Short circuit protection module 30 includes the 4th transistor T4 and the second electric capacity；The grid and light emitting module of the 4th transistor T4
20 and drive module 10 be all connected with, the first pole is all connected with light emitting module 20 and second voltage end V2, the second pole connection second electricity
Hold the first end of C2.
The second end connection drive module 20 of the second electric capacity C2.
Wherein, transistor seconds T2 is N-type transistor；4th transistor T4 is P-type transistor.
Further specifically, the first pole connection first voltage end V1 of transistor seconds T2, the second pole connects the sun of OLED
Pole.
As shown in figure 5, second pole of the first end of the first electric capacity C1 with the first transistor T1 and the grid of transistor seconds T2
Pole is all connected with, and the second end is all connected with first pole of transistor seconds T2 and first voltage end V1.
Or, as shown in fig. 6, second pole of the first end of the first electric capacity C1 with the first transistor T1 and transistor seconds T2
Grid be all connected with, the second end is all connected with second pole of transistor seconds T2 and the anode of OLED.
The grid of the 4th transistor T4 is all connected with the anode of second pole of transistor seconds T2 and OLED；First pole and the
The negative electrode of two voltage end V2 and OLED is all connected with；Second pole connects the first end of the second electric capacity C2.
Second end of the second electric capacity C2 is all connected with the grid of second pole of the first transistor T1 and transistor seconds T2.
More than, as shown in Figure 5 and Figure 6, when scanning signal input GATE is input into scanning signal, the first transistor T1 beats
Open, data signal input DATA input data signals, the grid of transistor seconds T2 is arrived in output after the first transistor T1, together
When to the first electric capacity C1 charge.Transistor seconds T2 is P-type transistor, and under high voltage signal control, transistor seconds T2 beats
Open, the high voltage signal of first voltage end V1 is exported to the anode of OLED through transistor seconds T2, while second voltage end V2
Low voltage signal is exported to the negative electrode of OLED, drives OLED to light.Wherein, the 4th transistor T4 is N-type transistor, and it is in grid
Opened after receiving low voltage signal, in the case of normal display, the anode of OLED exports electricity high to the grid of the 4th transistor T4
Pressure signal, the 4th transistor T4 cut-offs.
When the anode and negative electrode of OLED are short-circuited, the current potential reduction on anode, now, anode is to the 4th transistor T4's
Grid exports low voltage signal, and the 4th transistor T4 of control is opened, and the low voltage signal on the V2 of second voltage end is through the 4th crystal
Pipe T4 is exported to the grid of transistor seconds T2, under low voltage signal control, transistor seconds T2 cut-offs.First voltage end V1
High voltage signal stop being exported to anode, and second voltage end V2 by third transistor T3 by data signal input
The high voltage signal that DATA is input to the second electric capacity C2 is dragged down, and makes the high voltage signal of data signal input DATA also cannot be defeated
Go out to anode.
The utility model embodiment also provides a kind of display device, including any of the above-described kind of OLED pixel circuit.With with
OLED pixel circuit identical structure and beneficial effect that previous embodiment is provided.Because previous embodiment is to OLED pixel
The structure and beneficial effect of circuit are described in detail, and here is omitted.
The utility model embodiment also provides a kind of driving method of above-mentioned OLED pixel circuit, the driving method bag
Include：
Scanning signal input GATE is input into scanning signal, and data signal input DATA input data signals drive mould
Block 10 drives light emitting module 20 to light.
If light emitting module 20 is short-circuited, the control of short circuit protection module 30 drive module 10 is closed.
Specifically, as shown in Figure 3 and Figure 4, scanning signal input GATE input scanning signals, control the first transistor T1
Open；Data signal input DATA input data signals, control transistor seconds T2 is opened, and drives OLED to light.
If OLED normal luminous, first voltage end V1 exports brilliant to the signal control the 3rd on anode through transistor seconds T2
Body pipe T3 ends.
If OLED is short-circuited, the signal control third transistor T3 that second voltage end V2 is applied on anode is opened, the
Two voltage end V2 are applied to the signal control transistor seconds T2 cut-offs on anode.
Or, as shown in Figure 5 and Figure 6, if OLED normal luminous, first voltage end V1 is through transistor seconds T2 outputs to sun
The signal extremely gone up controls the 4th transistor T4 cut-offs.
If OLED is short-circuited, the signal that second voltage end V2 is applied on anode controls the 4th transistor T4 to open, the
Signal on two voltage end V2 directly controls transistor seconds T2 to end.
The utility model embodiment provides a kind of driving method of OLED pixel circuit, adds by OLED pixel circuit
Enter short circuit protection module 30, and in 20 normal luminous of light emitting module of sub-pixel, short circuit protection module 30 is closed；And group
After the light emitting module 20 of pixel is short-circuited, short circuit protection module 30 is then opened, and controls drive module 10 to close so that first
The signal of voltage end V1 and data wire size input DATA cannot export light emitting module 20, so, even if light emitting module
20 are short-circuited, and the signal of the second voltage end V2 being connected with light emitting module 20 will not also be raised, but remain in that its is original
Signal intensity, so as to can avoid a certain sub-pixel the normal display of its periphery sub-pixel is influenceed after being short-circuited.
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 OLED pixel circuit, it is characterised in that including drive module, light emitting module and short circuit protection module；
The drive module, connects scanning signal input, data signal input, first voltage end and the luminous mould respectively
Block, under the control of the scanning signal input, the data signal input and the first voltage end, driving
The light emitting module lights；
The light emitting module is also connected with second voltage end, under the control at the drive module and the second voltage end,
Lighted；
The short circuit protection module connects the drive module and the light emitting module, for being short-circuited in the light emitting module
When, control the drive module to close.
2. OLED pixel circuit according to claim 1, it is characterised in that the drive module include the first transistor,
First electric capacity and transistor seconds；
The grid of the first transistor connects the scanning signal input, and the first pole connects the data signal input,
Second pole connects the grid of the transistor seconds；
First pole of the transistor seconds connects the first voltage end, and the second pole connects the light emitting module；
The first end of first electric capacity connects the second pole of the first transistor, and the second end connects the transistor seconds
First pole；
Wherein, the transistor seconds is N-type transistor.
3. OLED pixel circuit according to claim 1, it is characterised in that the drive module include the first transistor,
First electric capacity and transistor seconds；
The grid of the first transistor connects the scanning signal input, and the first pole connects the data signal input,
Second pole connects the grid of the transistor seconds；
First pole of the transistor seconds connects the first voltage end, and the second pole connects the light emitting module；
The first end of first electric capacity connects the second pole of the first transistor, and the second end connects the transistor seconds
Second pole；
Wherein, the transistor seconds is N-type transistor.
4. OLED pixel circuit according to claim 1, it is characterised in that the light emitting module includes OLED, described
The anode of OLED connects the drive module, and negative electrode connects the second voltage end.
5. OLED pixel circuit according to claim 1, it is characterised in that the short circuit protection module includes the 3rd crystal
Pipe and the second electric capacity；
The grid of the third transistor and first is extremely connected with the light emitting module and the drive module, the connection of the second pole
The first end of second electric capacity；
Second end of second electric capacity connects the drive module；
Wherein, the third transistor is P-type transistor.
6. OLED pixel circuit according to claim 5, it is characterised in that the drive module include the first transistor,
First electric capacity and transistor seconds；The light emitting module includes OLED；
The grid of the third transistor and the first pole the second pole respectively with the transistor seconds and the anode of the OLED
It is all connected with；
Second end of second electric capacity is all connected with the grid of the second pole of the first transistor and the transistor seconds.
7. OLED pixel circuit according to claim 1, it is characterised in that the short circuit protection module includes the 4th crystal
Pipe and the second electric capacity；
The grid of the 4th transistor is all connected with the light emitting module and the drive module, the first pole and the luminous mould
Block and the second voltage end are all connected with, and the second pole connects the first end of second electric capacity；
Second end of second electric capacity connects the drive module；
Wherein, the 4th transistor is P-type transistor.
8. OLED pixel circuit according to claim 7, it is characterised in that the drive module include the first transistor,
First electric capacity and transistor seconds；The light emitting module includes OLED；
The grid of the 4th transistor is all connected with the second pole of the transistor seconds and the anode of the OLED, the first pole
It is all connected with the negative electrode of the OLED and the second voltage end；
Second end of second electric capacity is all connected with the grid of the second pole of the first transistor and the transistor seconds.
9. the OLED pixel circuit according to claim 2,3,6 or 8 any one, it is characterised in that the first transistor
It is N-type transistor.
10. a kind of display device, it is characterised in that including the OLED pixel circuit described in claim any one of 1-9.
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| CN106448564A (en) * | 2016-12-20 | 2017-02-22 | 京东方科技集团股份有限公司 | OLED pixel circuit as well as driving method and display device thereof |
| CN110580876A (en) * | 2019-09-30 | 2019-12-17 | 京东方科技集团股份有限公司 | Light emitting device control circuit, driving method thereof, array substrate and display device |
| CN111128076A (en) * | 2019-12-31 | 2020-05-08 | 上海视欧光电科技有限公司 | Display panel, short-circuit protection method of display panel and display device |
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- 2016-12-20 CN CN201621408406.4U patent/CN206271397U/en active Active
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| CN106448564A (en) * | 2016-12-20 | 2017-02-22 | 京东方科技集团股份有限公司 | OLED pixel circuit as well as driving method and display device thereof |
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| CN106448564B (en) * | 2016-12-20 | 2019-06-25 | 京东方科技集团股份有限公司 | A kind of OLED pixel circuit and its driving method, display device |
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| CN110580876A (en) * | 2019-09-30 | 2019-12-17 | 京东方科技集团股份有限公司 | Light emitting device control circuit, driving method thereof, array substrate and display device |
| CN110580876B (en) * | 2019-09-30 | 2021-01-22 | 京东方科技集团股份有限公司 | Light emitting device control circuit, driving method thereof, array substrate and display device |
| US11238764B2 (en) | 2019-09-30 | 2022-02-01 | Boe Technology Group Co., Ltd. | Light emitting control circuit, driving method thereof, array substrate and display device |
| CN111128076A (en) * | 2019-12-31 | 2020-05-08 | 上海视欧光电科技有限公司 | Display panel, short-circuit protection method of display panel and display device |
| US11217168B2 (en) | 2019-12-31 | 2022-01-04 | Seeya Optronics Co., Ltd. | Display panel including short circuit protection circuit |
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