CN106711182A - OLED (Organic Light Emitting Diode) screen body and repairing method of OLED screen body - Google Patents
OLED (Organic Light Emitting Diode) screen body and repairing method of OLED screen body Download PDFInfo
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- CN106711182A CN106711182A CN201710002020.6A CN201710002020A CN106711182A CN 106711182 A CN106711182 A CN 106711182A CN 201710002020 A CN201710002020 A CN 201710002020A CN 106711182 A CN106711182 A CN 106711182A
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- 230000007547 defect Effects 0.000 claims abstract description 30
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- 230000008439 repair process Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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Abstract
The invention discloses an OLED (Organic Light Emitting Diode) screen body and a repairing method of the OLED screen body. The OLED screen body comprises an anode, a first cathode and a second cathode; pixel units of the OLED screen body are divided into a first group of pixel units and a second group of pixel units; the anode is connected with the anode of the two groups of pixel units; the first cathode is connected with the cathode of the first group of pixel units and the second cathode is connected with the cathode of the second group of pixel units; the anode is connected with a first power supply and the first power supply provides constant voltage; the first cathode is connected with a second power supply; the second power supply provides first alternating voltage; the second cathode is connected with a third power supply; the third power supply provides second alternating voltage; phases of the first alternating voltage and the second alternating voltage are opposite at the same moment. Aiming at one group of the pixel units, when the voltage of the cathode is higher than that of the anode, the pixel units with defect points in the group can be broken down, and automatic repairing on the pixel units is realized, so that light emitting of the other pixel units is not influenced, and the uniformity of the brightness of the OLED screen body is effectively guaranteed.
Description
Technical field
The application is related to display technology field, more particularly to a kind of OLED screen body and its restorative procedure.
Background technology
OLED (English full name：Organic Light-Emitting Diode, Chinese：The pole of organic electric-excitation luminescent two
Pipe) it is a kind of new luminescent device, because it has self-luminous, it is not required to that backlight, contrast high, thickness of thin, visual angle be wide, reaction
The features such as speed is fast, manufacturing process is simpler, is applied to each display and lighting field more and more.
Generally, comprising the organic layer between anode, negative electrode and anode and negative electrode in OLED screen body, in OLED screen body running
During, can respectively apply forward voltage and negative voltage in the anode of OLED screen body and negative electrode so that in OLED screen body
Comprising multiple pixel cells light, and then control whole OLED screen body to light.
However, in actual applications, when making or using OLED screen body, inevitably there is dust in OLED screen body
The defect points such as particle, crackle.Because the interval between the anode and negative electrode of OLED screen body is smaller (usually hundreds of nanometers), because
This, anode may be connected with negative electrode at defect point so that be short-circuited at defect point.So, due to pixel at defect point
The image element circuit of unit is short-circuited so that the pixel cell at defect point does not light, or even influences other pixel cells not
It is luminous, for example, influenceing that the pixel cell is expert at and/or other pixel cells of column do not light, and then may cause
The brightness irregularities of OLED screen body.
The content of the invention
In view of this, the embodiment of the present application provides a kind of OLED screen body and its restorative procedure, for solving in the prior art
Due to the problem of the brightness irregularities of OLED screen body caused by defect point present in OLED screen body.
The embodiment of the present application provides a kind of OLED screen body, it is characterised in that the OLED screen body includes anode, the first negative electrode
And second negative electrode, wherein：
The pixel cell that the OLED screen body is included is divided into first group of pixel cell and second group of pixel cell, it is described
Anode is connected with the anode of first group of pixel cell and the anode of second group of pixel cell, first negative electrode with
The negative electrode of first group of pixel cell is connected, and second negative electrode is connected with the negative electrode of second group of pixel cell；
The anode is connected with the first power supply, and first power supply provides constant voltage；
First negative electrode is connected with second source, and the second source provides the first alternating voltage；
Second negative electrode is connected with the 3rd power supply, and the 3rd power supply provides the second alternating voltage, second alternation
Voltage is with first alternating voltage in synchronization opposite in phase.
Preferably, first group of pixel cell is odd-line pixels unit, second group of picture in the OLED screen body
Plain unit is even rows unit in the OLED screen body；
Or, first group of pixel cell is odd column pixel unit, second group of pixel list in the OLED screen body
Unit is even column pixels unit in the OLED screen body.
Preferably, the OLED screen body also includes mask plate, wherein：
The mask plate is used to be deposited with first negative electrode and second negative electrode for obtaining the OLED screen body.
The embodiment of the present application also provides a kind of restorative procedure of OLED screen body, including：
First power supply applies constant voltage to the anode, and the second source applies described to first negative electrode
First alternating voltage, the 3rd power supply applies second alternating voltage to second negative electrode；
In synchronization, first alternating voltage is more than the constant voltage, and second alternating voltage is less than
The constant voltage, repairs to first group of pixel cell；Or, in synchronization, first alternating voltage is less than
The constant voltage, and second alternating voltage is more than the constant voltage, and second group of pixel cell is repaiied
It is multiple.
Preferably, pair pixel cell being connected with first negative electrode is repaired, including：
First alternating voltage is more than the constant voltage, in first group of pixel cell, the normal pixel
The OLED of unit is in cut-off state, and the OLED of the pixel cell of existing defects point is breakdown, completes to described first group
The reparation of pixel cell.
Preferably, pair pixel cell being connected with second negative electrode is repaired, including：
Second alternating voltage is more than the constant voltage, in second group of pixel cell, the normal pixel
The OLED of unit is in cut-off state, and the OLED of the pixel cell of existing defects point is breakdown, completes to described second group
The reparation of pixel cell.
Preferably, first alternating voltage and second alternating voltage are square-wave voltage.
Preferably, the dutycycle of the square-wave voltage is 1：1.
Preferably, first alternating voltage and second alternating voltage are produced by waveshape generating device.
Preferably, by changing the size of first alternating voltage and second alternating voltage, adjustment is described
The brightness of OLED screen body.
Above-mentioned at least one technical scheme that the embodiment of the present application is used can reach following beneficial effect：
The embodiment of the present application, is divided into two groups, and the negative electrode of OLED screen body is divided into two by the pixel cell in OLED screen body
Road, all the way negative electrode be connected with the negative electrode of one of which pixel cell, another road negative electrode is connected with the negative electrode of another group of pixel cell,
And be powered respectively using two alternating voltages in synchronization opposite in phase, so, in the process that OLED screen body lights
In, for one of which pixel cell, when cathode voltage is higher than anode voltage, existing defects point in the group can be punctured
Pixel cell, automatic reparation to the pixel cell is realized, and then do not interfere with the luminous of other pixel cells, compared to existing
Have for technology, the uniformity of OLED screen body brightness can be effectively ensured.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please does not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
A kind of schematic diagram of OLED screen body that Fig. 1 is provided for the embodiment of the present application；
The schematic diagram of another OLED screen body that Fig. 2 is provided for the embodiment of the present application；
A kind of mask plate that the first negative electrode and the second negative electrode are obtained for being deposited with that Fig. 3 is provided for the embodiment of the present application；
A kind of first alternating voltage and the oscillogram of the second alternating voltage that Fig. 4 is provided for the embodiment of the present application.
Specific embodiment
Technical scheme is clearly and completely retouched with reference to the application specific embodiment and corresponding accompanying drawing
State.Obviously, described embodiment is only some embodiments of the present application, rather than whole embodiments.Based in the application
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made,
Belong to the scope of the application protection.
It should be noted that the OLED screen body that the embodiment of the present application is provided, is displayed for field, it is also possible to use
In lighting field, it is not specifically limited here, the embodiment of the present application can be entered so that the OLED screen body is used for lighting field as an example
Row explanation.
Below in conjunction with accompanying drawing, the technical scheme that each embodiment of the application is provided is described in detail.
Embodiment 1
The embodiment of the present application provides a kind of OLED screen body, and the OLED screen body is cloudy comprising anode, the first negative electrode and second
Pole, wherein it is possible to the pixel cell included in the OLED screen body is divided into two groups, respectively first group pixel cell and
Two groups of pixel cells, the anode is connected with the anode of two groups of pixel cells, and first negative electrode can be with described first
The negative electrode of group pixel cell is connected, and second negative electrode can be connected with the negative electrode of second group of pixel cell.
Wherein, the anode of the pixel cell can be the anode of the corresponding image element circuit of the pixel cell, the picture
The negative electrode of plain unit can be the negative electrode of the corresponding image element circuit of the pixel cell.
It should be noted that in the embodiment of the present application, the pixel cell that the OLED screen body is included is divided into two groups, can
To be the pixel cell equably to be divided into two groups, or the pixel cell unevenly is divided into two groups, here
It is not specifically limited.As a kind of preferably mode, the pixel cell equably can be divided into two groups.
If the pixel cell equably is divided into two groups, then, can be in the form of a grid by the pixel cell
It is divided into two groups.
As shown in figure 1, a kind of schematic diagram of OLED screen body that Fig. 1 is provided for the embodiment of the present application.Each grid in Fig. 1
A pixel cell in the OLED screen body can be represented.Multiple pixel cells in Fig. 1 are divided into two in the form of a grid
Group, wherein, the pixel cell of mark 1 can be divided into first group of pixel cell, and the pixel cell of mark 2 can be divided into second group of pixel list
Unit.So, the anode can be with the anode of first group of pixel cell and the anode phase of second group of pixel cell
Even, first negative electrode can be connected with the negative electrode of first group of pixel cell, and second negative electrode can be with described second
The negative electrode of pixel cell is connected.
In addition to this it is possible to the pixel cell is uniformly divided into two groups according to the mode of row or column.
Specifically, some row pixel cells included in the OLED screen body can be equally divided into two according to capable quantity
Group, it is also possible to the several columns pixel cell included in the OLED screen body is equally divided into two groups according to the quantity of row, here not
It is specifically limited.
As a kind of preferably mode, odd-line pixels unit in the OLED screen body can be divided into first group, and will
Even rows unit is divided into second group in the OLED screen body；Or, can be by odd column pixel unit in the OLED screen body
It is divided into first group, and even column pixels unit in the OLED screen body is divided into second group.
As shown in Fig. 2 the schematic diagram of another OLED screen body that Fig. 2 is provided for the embodiment of the present application.
In Fig. 2, the OLED screen body includes some rows and several columns pixel cell, can be with each pixel cell
Comprising a luminescent device OLED, an OLED can represent a pixel cell in Fig. 2.Wherein it is possible to by odd-line pixels
Unit is divided into first group of pixel cell, and even rows unit is divided into second group of pixel cell.So, the anode can be with
The anode of all pixels circuit is connected in the OLED screen body, the negative electrode phase of first negative electrode and the odd-line pixels unit
Even, second negative electrode is connected with the negative electrode of the even rows circuit.
It should be noted that in actual applications, the pixel list connected to first negative electrode and second negative electrode
Unit is not specifically limited.
In the embodiment of the present application, the anode can also be connected with the first power supply, and first negative electrode can be with the second electricity
Source is connected, and second negative electrode can be connected with the 3rd power supply, wherein, first power supply is used to provide constant voltage, described
Second source is used to provide the first alternating voltage, and the 3rd power supply is used to provide the second alternating voltage.
The constant voltage is forward voltage, and first alternating voltage is with second alternating voltage in synchronization phase
Position is opposite, that is to say, that first alternating voltage is identical with the frequency of second alternating voltage, and in week same time
Any instant in phase, first alternating voltage differs 180 degree with the phase of second alternating voltage.
It should be noted that at any one time, the constant voltage is more than first alternating voltage, and less than described the
Two alternating voltages, repair to second group of pixel cell；Or, the constant voltage is less than first alternating voltage,
And more than second alternating voltage, first group of pixel cell is repaired.
So, during the OLED screen body is luminous, the constant voltage is that the OLED in the pixel cell is carried
For forward voltage, first alternating voltage and the negative electrode that second alternating voltage is pixel cell in the OLED screen body
In the case that alternating voltage is provided, it is ensured that at any one time, the picture being connected with first negative electrode in the OLED screen body
Plain unit or the pixel cell being connected with second negative electrode can light, that is to say, that can ensure at any one time, described
OLED screen body can light.
The embodiment of the present application, during the OLED screen body is luminous, because at any one time, first alternation is electric
Pressure or second alternating voltage are more than the constant voltage, it is thereby achieved that existing defects point in the OLED screen body
The reparation of pixel cell, so so that the pixel cell of existing defects point does not interfere with the pixel cell and is expert at and/or place
Other pixel cells of row it is luminous.
As shown in Figure 1 or 2, the anode of the OLED screen body can be connected with the first power vd D, the OLED screen body
First negative electrode can be connected with second source VSS1, and second negative electrode of the OLED screen body can be with the 3rd power supply
VSS2 is connected.Wherein, the first power vd D is used to provide constant voltage for the anode, and second source VSS1 is for being described the
One negative electrode provides the first alternating voltage, and the 3rd power supply VSS2 is used to provide the second alternating voltage for second negative electrode.
During the OLED screen body shown in Fig. 1 or Fig. 2 is luminous, first group of pixel cell and described second group
Pixel cell can realize that timesharing lights, also, for pixel cell described in one of which, in this group of the moon of pixel cell
When pole tension is more than anode voltage, if the group has the pixel cell of existing defects point, then, it is possible to achieve the pixel cell is repaiied
It is multiple so that not interfere with the luminous of other pixel cells in the OLED screen body.
In another embodiment that the application is provided, the OLED screen body also includes mask plate, wherein, the mask plate is used
First negative electrode and second negative electrode of the OLED screen body are obtained in evaporation.
In OLED screen body described in actual fabrication, a mask plate can be newly increased, and using the mask plate to described
The negative electrode of OLED screen body is deposited with, to obtain first negative electrode and second negative electrode.
Specifically, can be it is determined that after the pixel cell being connected with first negative electrode and second negative electrode, being deposited with
First negative electrode and second negative electrode are obtained, wherein, method to the evaporation of the OLED screen body and in the prior art
Method it is identical.
A kind of mask plate that the first negative electrode and the second negative electrode are obtained for being deposited with that Fig. 3 is provided for the embodiment of the present application.
As shown in figure 3, the cathode evaporation of the odd-line pixels unit that the mask plate will can be included in the OLED screen body
It is first negative electrode, and the cathode evaporation of the even rows unit that will be included in the OLED screen body is described second the moon
Pole.
The embodiment of the present application, is divided into two groups, and the negative electrode of OLED screen body is divided into two by the pixel cell in OLED screen body
Road, all the way negative electrode be connected with the negative electrode of one of which pixel cell, another road negative electrode is connected with the negative electrode of another group of pixel cell,
And be powered respectively using two alternating voltages in synchronization opposite in phase, so, in the process that OLED screen body lights
In, for one of which pixel cell, when cathode voltage is higher than anode voltage, existing defects point in the group can be punctured
Pixel cell, automatic reparation to the pixel cell is realized, and then do not interfere with the luminous of other pixel cells, compared to existing
Have for technology, the uniformity of OLED screen body brightness can be effectively ensured.
Embodiment 2
The embodiment of the present application provides a kind of restorative procedure of OLED screen body, for described in described in above-described embodiment 1
The pixel cell of existing defects point is repaired in OLED screen body.
Wherein, the constant voltage that first power supply in the OLED screen body is provided is forward voltage, described the
Second alternating voltage that first alternating voltage and the 3rd power supply that two power supplys are provided are provided can be pulse
Voltage, the shape of the pulse voltage can be rectangle, can be triangle, can also be other shapes, be not specifically limited.
Used as a kind of preferably mode, first alternating voltage and second alternating voltage can be rectangular pulses
Voltage, wherein, the dutycycle to the square-wave voltage is not specifically limited here.It is described as a kind of preferably mode
The dutycycle of square-wave voltage can be 1:1.
In the embodiment of the present application, it is by square-wave voltage of first alternating voltage and second alternating voltage
Example is illustrated, also, the dutycycle of the square-wave voltage is 1:1.
A kind of first alternating voltage and the oscillogram of the second alternating voltage that Fig. 4 is provided for the embodiment of the present application.
Figure 4, it is seen that the first alternating voltage V1 and the second alternating voltage V2 is square-wave voltage, the rectangle
The time cycle of pulse voltage is t1+t2, wherein, t1=t2, any instant within the time cycle, the first alternating voltage
The voltage of V1 is in opposite direction with the second alternating voltage V2's.
In the embodiment of the present application, first group of pixel cell is odd-line pixels unit in the OLED screen body, described
Second group of pixel cell is even rows unit in the OLED screen body, that is to say, that the anode and the OLED screen body
The anode of middle all pixels circuit is connected, the negative electrode phase of first negative electrode and the pixel cell of odd-numbered line in the OLED screen body
Even, second negative electrode is connected with the negative electrode of the pixel cell of even number line in the OLED screen body.
The restorative procedure of the OLED screen body is as described below.
As shown in figure 4, during the OLED screen body is luminous, first power supply can apply permanent to the anode
Determine voltage V0, the second source can apply the first alternating voltage V1 to first negative electrode, and the 3rd power supply can
Apply the second alternating voltage V2 with to second negative electrode.
So, in synchronization, the first alternating voltage V1 is more than the constant voltage V0, and second alternation
Voltage V1 is less than the constant voltage V0, and the odd-line pixels unit is repaired；Or, in synchronization, described first
Alternating voltage V1 is less than the constant voltage V0, and the second alternating voltage V2 is more than the constant voltage V0, to described
Even rows unit is repaired.
Specifically, any instant within the t1 time periods, the first alternating voltage V1 is more than the constant voltage V0, institute
The second alternating voltage V2 is stated less than the constant voltage V0, so, in the odd-line pixels unit being connected with first negative electrode
In OLED be in cut-off state, odd-line pixels unit does not light, in the even rows list being connected with second negative electrode
OLED in unit is in the conduction state, and even rows unit lights.
Now, if existing defects point in odd-line pixels unit, due to the image element circuit table of pixel cell at defect point
It is now short circuit, and other are in cut-off state in the absence of the OLED in the pixel cell of defect point, therefore, flow through picture at defect point
The electric current of the OLED in plain unit will be very big, when electric current is more than the maximum current that the OLED can bear, existing defects point
The pixel cell OLED it is breakdown, once OLED is breakdown, the pixel cell will not affect that in the OLED screen body
Luminous, the i.e. reparation of the completion pair with the pixel cell of odd-numbered line of other pixel cells.
Any instant within the t2 time periods, the first alternating voltage V1 is less than the constant voltage V0, described second
Alternating voltage V2 is more than the constant voltage V0, so, in the odd-line pixels unit being connected with first negative electrode
OLED is in the conduction state, and odd-line pixels unit lights, in the even rows unit being connected with second negative electrode
OLED is in cut-off state, and even rows unit does not light.
Now, if existing defects point in even rows unit, due to the image element circuit of the pixel cell at defect point
Short circuit is shown as, and other are in cut-off state in the absence of the OLED in the pixel cell of defect point, therefore, flow through at defect point
The electric current of the OLED in pixel cell will be very big, and when electric current is more than the maximum current that the OLED can bear, this exists scarce
The OLED of the pixel cell of trapping spot is breakdown, once OLED is breakdown, the pixel cell will not affect that the OLED screen
Other pixel cells is luminous in body, i.e. reparation of the completion pair with the pixel cell of even number line.
Based on above-mentioned principle, in actual applications, can be during the OLED screen body be luminous, using described constant
Voltage V0 is held respectively persistently to the anode supply using the first alternating voltage V1 and the second alternating voltage V2
It is continuous that first negative electrode and second negative electrode are powered, so, the OLED screen body can be not only repaired in manufacturing process
The defect point of middle generation, can also repair the defect point that the OLED screen body is produced in use so that defect point will not
The luminous of other pixel cells in the OLED screen body is influenceed, and then ensures the uniformity of OLED screen body brightness.
In the embodiment of the present application, first alternating voltage and second alternating voltage can be by waveshape generating devices
Produce.The waveshape generating device can be one, or two, be not specifically limited.
In addition to this it is possible to pass through the size for adjusting first alternating voltage and second alternating voltage, it is right
The brightness of the OLED screen body is adjusted.Specific method of adjustment can determine according to actual conditions, be not specifically limited here.
It should be noted that the feelings luminous compared to all normal pixel cells in the OLED screen body of prior art
Condition, in the embodiment of the present application, because at any one time, only one of which pixel cell lights in the OLED screen body, i.e. institute
The two groups of pixel cell timesharing stated in OLED screen body light, therefore, the restorative procedure of the OLED screen body that the embodiment of the present application is provided,
The service life of the OLED screen body can also be effectively improved.
The embodiment of the present application, one group is divided into by odd-line pixels unit in OLED screen body, and even rows unit is divided into separately
One group, and the negative electrode of OLED screen body is divided into two-way, negative electrode is connected with the negative electrode of odd-line pixels unit all the way, another road negative electrode
Negative electrode with even rows unit is connected, and is carried out respectively using two square-wave voltages in synchronization opposite in phase
Power supply, so, during OLED screen body is luminous, parity rows pixel cell can realize that timesharing lights, also, for wherein
For one-row pixels unit, when cathode voltage is higher than anode voltage, the pixel cell of existing defects point can be punctured, it is right to realize
The automatic reparation of the pixel cell, and then the luminous of other pixel cells is not interfered with, the equal of OLED screen body brightness is effectively ensured
Even property.
It should be understood by those skilled in the art that, the application (is set with reference to the method according to the embodiment of the present application, device
It is standby) flow chart and/or block diagram describe.Although having been described for the preferred embodiment of the application, skill in the art
Art personnel once know basic creative concept, then other change and modification can be made to these embodiments.So, it is appended
Claim is intended to be construed to include preferred embodiment and falls into having altered and changing for the application scope.
Also, it should be noted that term " including ", "comprising" or its any other variant be intended to nonexcludability
Comprising so that process, method, commodity or equipment including a series of key elements not only include those key elements, but also wrapping
Include other key elements being not expressly set out, or also include for this process, method, commodity or equipment is intrinsic wants
Element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that wanted including described
Also there is other identical element in process, method, commodity or the equipment of element.
Embodiments herein is the foregoing is only, the application is not limited to.For those skilled in the art
For, the application can have various modifications and variations.It is all any modifications made within spirit herein and principle, equivalent
Replace, improve etc., within the scope of should be included in claims hereof.
Claims (10)
1. a kind of OLED screen body, it is characterised in that the OLED screen body includes anode, the first negative electrode and the second negative electrode, its
In：
The pixel cell that the OLED screen body is included is divided into first group of pixel cell and second group of pixel cell, the anode
Be connected with the anode of first group of pixel cell and the anode of second group of pixel cell, first negative electrode with it is described
First group of negative electrode of pixel cell is connected, and second negative electrode is connected with the negative electrode of second group of pixel cell；
The anode is connected with the first power supply, and first power supply provides constant voltage；
First negative electrode is connected with second source, and the second source provides the first alternating voltage；
Second negative electrode is connected with the 3rd power supply, and the 3rd power supply provides the second alternating voltage, second alternating voltage
With first alternating voltage in synchronization opposite in phase.
2. OLED screen body as claimed in claim 1, it is characterised in that
First group of pixel cell is odd-line pixels unit in the OLED screen body, and second group of pixel cell is described
Even rows unit in OLED screen body；
Or, first group of pixel cell is odd column pixel unit in the OLED screen body, second group of pixel cell is
Even column pixels unit in the OLED screen body.
3. OLED screen body as claimed in claim 1 or 2, it is characterised in that the OLED screen body also includes mask plate, wherein：
The mask plate is used to be deposited with first negative electrode and second negative electrode for obtaining the OLED screen body.
4. the restorative procedure of a kind of OLED screen body as described in any one of claims 1 to 3, it is characterised in that including：
First power supply applies constant voltage to the anode, and the second source applies described first to first negative electrode
Alternating voltage, the 3rd power supply applies second alternating voltage to second negative electrode；
In synchronization, first alternating voltage is more than the constant voltage, and second alternating voltage less than described
Constant voltage, repairs to first group of pixel cell；Or, in synchronization, first alternating voltage is less than described
Constant voltage, and second alternating voltage is more than the constant voltage, and second group of pixel cell is repaired.
5. the restorative procedure of OLED screen body as claimed in claim 4, it is characterised in that pair picture being connected with first negative electrode
Plain unit is repaired, including：
First alternating voltage is more than the constant voltage, in first group of pixel cell, the normal pixel cell
OLED be in cut-off state, the OLED of the pixel cell of existing defects point is breakdown, completes pair and first group of picture
The reparation of plain unit.
6. the restorative procedure of OLED screen body as claimed in claim 4, it is characterised in that pair picture being connected with second negative electrode
Plain unit is repaired, including：
Second alternating voltage is more than the constant voltage, in second group of pixel cell, the normal pixel cell
OLED be in cut-off state, the OLED of the pixel cell of existing defects point is breakdown, completes pair and second group of picture
The reparation of plain unit.
7. the restorative procedure of the OLED screen body as described in any one of claim 4 to 6, it is characterised in that
First alternating voltage and second alternating voltage are square-wave voltage.
8. the restorative procedure of OLED screen body as claimed in claim 7, it is characterised in that
The dutycycle of the square-wave voltage is 1：1.
9. the restorative procedure of OLED screen body as claimed in claim 8, it is characterised in that
First alternating voltage and second alternating voltage are produced by waveshape generating device.
10. the restorative procedure of OLED screen body as claimed in claim 9, it is characterised in that
By changing the size of first alternating voltage and second alternating voltage, the bright of the OLED screen body is adjusted
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002020.6A CN106711182B (en) | 2017-01-03 | 2017-01-03 | A kind of OLED screen body and its restorative procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002020.6A CN106711182B (en) | 2017-01-03 | 2017-01-03 | A kind of OLED screen body and its restorative procedure |
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| Publication Number | Publication Date |
|---|---|
| CN106711182A true CN106711182A (en) | 2017-05-24 |
| CN106711182B CN106711182B (en) | 2019-04-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108269838A (en) * | 2018-01-31 | 2018-07-10 | 昆山国显光电有限公司 | A kind of OLED display panel and display equipment |
| US10339869B1 (en) | 2018-02-01 | 2019-07-02 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | OLED display device |
| WO2019148559A1 (en) * | 2018-02-01 | 2019-08-08 | 武汉华星光电半导体显示技术有限公司 | Oled display device |
| CN110690225A (en) * | 2019-09-02 | 2020-01-14 | 武汉华星光电半导体显示技术有限公司 | Array substrate, data line breakpoint repairing method thereof and display device |
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| CN1645459A (en) * | 2004-01-19 | 2005-07-27 | 东北先锋电子股份有限公司 | Driving device and method for light emitting display panel |
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| CN1645459A (en) * | 2004-01-19 | 2005-07-27 | 东北先锋电子股份有限公司 | Driving device and method for light emitting display panel |
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Cited By (4)
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| CN108269838A (en) * | 2018-01-31 | 2018-07-10 | 昆山国显光电有限公司 | A kind of OLED display panel and display equipment |
| US10339869B1 (en) | 2018-02-01 | 2019-07-02 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | OLED display device |
| WO2019148559A1 (en) * | 2018-02-01 | 2019-08-08 | 武汉华星光电半导体显示技术有限公司 | Oled display device |
| CN110690225A (en) * | 2019-09-02 | 2020-01-14 | 武汉华星光电半导体显示技术有限公司 | Array substrate, data line breakpoint repairing method thereof and display device |
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| CN106711182B (en) | 2019-04-26 |
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