CN109801598A - Driving method - Google Patents
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- CN109801598A CN109801598A CN201910257794.2A CN201910257794A CN109801598A CN 109801598 A CN109801598 A CN 109801598A CN 201910257794 A CN201910257794 A CN 201910257794A CN 109801598 A CN109801598 A CN 109801598A
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Abstract
A kind of driving method is suitable for display device.Driving method is the following steps are included: pixel circuit receives the data voltage exported by source electrode drive circuit and the reference voltage exported by power supply circuit；In in M period, power supply circuit adjusts reference voltage M times；In one of them period of M period, data voltage is adjusted n times by source electrode drive circuit；And pixel circuit is received by data voltage and reference voltage, and the driving current of light emitting diode is flowed through according to data voltage and reference voltage control.
Description
Technical field
The present invention in relation to a kind of driving method, and in particular to it is a kind of adjust brightness driving method.
Background technique
With the fast development of display technology, wearable device (smart watch, intelligent bracelet) has generally been used
Among people's lives, generally for that can understand identification image in high-brightness environment, wearable device can automatically will be bright
It spends from general modfel (Normal Mode) and switches to high brightness mode (High Brightness Mode) to improve the bright of display
Degree.However, will cause the eyes of user because bright if the switch speed for switching to high brightness mode from general modfel is too fast
Degree variation is too fast and has the case where not feeling good.
Summary of the invention
The present invention provides a kind of driving method, mainly pass through control pixel circuit cross-pressure, using stage by stage increase or
Reduce pixel circuit cross-pressure mode, within a period adjust light emitting diode brightness, achieve the effect that it is gradually bright or gradually dark,
Human eye will not be felt good because brightness change is excessive.
The first embodiment of this case provides a kind of driving method, is suitable for display device, wherein display device includes source electrode
Driving circuit, gate driving circuit and multiple pixel circuits.Driving method is the following steps are included: pixel circuit is received by source electrode
First data voltage of driving circuit output and the first reference voltage exported by power supply circuit, and according to the first number
The driving current of light emitting diode is flowed through according to voltage and the control of the first reference voltage；In in the first period, power supply circuit
First reference voltage is adjusted to the second reference voltage；In the first period, source electrode drive circuit adjusts the first data voltage
For the second data voltage, and the second data voltage is adjusted to third data voltage again by source electrode drive circuit, the first data voltage,
Second data voltage and third data voltage are different each other；And pixel circuit receives third data voltage and second with reference to electricity
Pressure, and the driving current for flowing through light emitting diode is controlled according to third data voltage and the second reference voltage.
The second embodiment of this case provides a kind of driving method, is suitable for display device, wherein display device includes source electrode
Driving circuit, gate driving circuit and multiple pixel circuits, driving method is the following steps are included: pixel circuit is received by source electrode
The data voltage of driving circuit output and the reference voltage exported by power supply circuit；In in M period, power supply supply is electric
Road adjusts reference voltage M times；In one of them period of M period, data voltage is adjusted n times by source electrode drive circuit；With
And pixel circuit receive by data voltage and reference voltage, and according to data voltage and reference voltage control flow through it is luminous
The driving current of diode.
The 3rd embodiment of this case provides a kind of driving method, is suitable for display device, wherein display device includes source electrode
Driving circuit, gate driving circuit and multiple pixel circuits, driving method include: that pixel circuit is received by source electrode drive circuit
First data voltage of output and the first reference voltage exported by power supply circuit, and according to the first reference voltage control
System flows through the driving current of light emitting diode；In in the period, the first reference voltage is adjusted to the second reference by power supply circuit
Voltage；And pixel circuit receives data voltage and the second reference voltage, and according to data voltage and second with reference to electricity
It is voltage-controlled to make the driving current for flowing through light emitting diode.
The fourth embodiment of this case provides a kind of driving method, is suitable for display device, wherein display device includes source electrode
Driving circuit, gate driving circuit and multiple pixel circuits, driving method include: that pixel circuit is received by source electrode drive circuit
First data voltage of output and the reference voltage exported by power supply circuit, and controlled and flowed according to the first data voltage
Driving current through light emitting diode；In in the period, the first data voltage is adjusted to the second data voltage by source electrode drive circuit,
And the second data voltage is adjusted to third data voltage again by source electrode drive circuit, the first data voltage, the second data voltage with
Third data voltage is different each other；And pixel circuit receives third data voltage and reference voltage, and according to third number
The driving current of light emitting diode is flowed through according to voltage and reference voltage control；Wherein, the first data voltage and the second data electricity
There is data voltage difference amount between pressure, there is data voltage difference amount between the second data voltage and third data voltage.
Driving method proposed by the present invention mainly controls the cross-pressure of pixel circuit, using increasing or decreasing stage by stage
The mode of the cross-pressure of pixel circuit, within a period adjust light emitting diode brightness, achieve the effect that it is gradually bright or gradually dark, to allow
Not the effect of human eye will not feel good because brightness change is excessive.
Detailed description of the invention
Fig. 1 is the schematic diagram according to the display device of one embodiment of the invention.
Fig. 2 is the circuit diagram according to the pixel circuit of one embodiment of the invention.
Fig. 3 is the flow chart according to the driving method of one embodiment of the invention.
Fig. 4 A is according to the data voltage of one embodiment of the invention and the schematic diagram of reference voltage.
Fig. 4 B is according to the data voltage of one embodiment of the invention and the schematic diagram of reference voltage.
Fig. 5 is the flow chart according to the driving method of one embodiment of the invention.
Fig. 6 A is the flow chart according to the driving method of one embodiment of the invention.
Fig. 6 B is the schematic diagram according to the reference voltage of one embodiment of the invention.
Fig. 6 C is the schematic diagram according to the reference voltage of one embodiment of the invention.
Fig. 7 A is the flow chart according to the driving method of one embodiment of the invention.
Fig. 7 B is the schematic diagram according to the data voltage of one embodiment of the invention.
Fig. 7 C is the schematic diagram according to the data voltage of one embodiment of the invention.
Wherein, appended drawing reference:
100: display device
110: source electrode drive circuit
120: gate driving circuit
130: pixel circuit
131: write circuit
132: compensation circuit
133: reset circuit
134: driving circuit
140: power supply circuit
300,500,600,700: driving method
T1~T8: transistor
C1: capacitor
OVDD: power supply high voltage
OVSS: power supply low-voltage
S1~S3: scanning signal
CTL: control signal
Vref: reference voltage
Id: driving current
OLED: light emitting diode
Vref1, Vref2, Vrefn: reference voltage level
Vref_diff: reference voltage measures of dispersion
Vdata: data voltage
Vdata1, Vdata2, Vdata3, Vdatan: data voltage level
Vdata_diff: data voltage difference amount
T1, Tm: period
S310~S340, S510~S540, S610~S630, S710~S730: step
Specific embodiment
Illustrate the embodiment of the present invention below in conjunction with correlative type.In the drawings, identical label indicate it is identical or
Similar element or method flow.
Please refer to the 1st figure.1st figure is the schematic diagram according to the display device 100 of one embodiment of the invention.Such as the 1st figure institute
It is painted, display device 100 includes source electrode drive circuit 110, gate driving circuit 120, pixel circuit 130 and power supply supply electricity
Road 140.For pixel circuit 130 please further refer to the 2nd figure, the 2nd figure is the electricity according to the pixel circuit 130 of one embodiment of the invention
Lu Tu.130 system of pixel circuit as depicted in the 2nd figure is the framework of 8 transistors, 1 capacitor (8T1C), this pixel circuit 130
For known image element circuit framework, in the present invention using this image element circuit framework come explanation of arranging in pairs or groups.The present invention is not necessarily to
It arranges in pairs or groups such 130 framework of pixel circuit, the frameworks of other pixel circuits that can also arrange in pairs or groups is implemented.
Pixel circuit 130 includes write circuit 131, compensation circuit 132, reset circuit 133, driving circuit 134 and hair
Optical diode OLED.Write circuit 131 is electrically connected to compensation circuit 132 and driving circuit 134, and compensation circuit 132 is electrically
It is connected to reset circuit 133 and driving circuit 134, reset circuit 133 is electrically connected to light emitting diode OLED.Light-emitting diodes
Pipe OLED is electrically connected to compensation circuit 132 and reset circuit 133, to receive power supply low-voltage OVSS.
Hold it is above-mentioned, write circuit 131 include transistor T1 and T2 and capacitor C1, write circuit 131 to receive control
Signal CTL, scanning signal S3, reference voltage Vref and data voltage Vdata.Compensation circuit 132 include transistor T3, T4,
T5 and T6, compensation circuit 132 is to receive control signal CTL, scanning signal S1 and S3 and reference voltage Vref and generate benefit
Repay voltage.Reset circuit 133 includes transistor T7, to receive scanning signal S2 and reset the voltage level of driving circuit 134.
Driving circuit 134 includes transistor T8, to receive power supply high voltage OVDD, to generate the drive for flowing through light emitting diode OLED
Streaming current Id.In compensated stage, that is, light emitting phase, write circuit 131 is to generate the control of driving signal to transistor T8
End, driving signal are determined according to reference voltage Vref and data voltage Vdata.
Also referring to the 1st figure~the 3rd figure.3rd figure is the process according to the driving method 300 of one embodiment of the invention
Figure.As depicted in the 3rd figure, driving method 300 is suitable for display device 100, to control the drive for flowing through light emitting diode OLED
Streaming current Id.Driving method 300 is first carried out step S310 pixel circuit 130 and receives the number exported by source electrode drive circuit 110
According to voltage Vdata and the reference voltage Vref exported by power supply circuit 140, and according to data voltage Vdata and
Reference voltage Vref controls the driving current Id for flowing through light emitting diode OLED.
4A figure is please referred to, 4A figure is the data voltage Vdata and reference voltage Vref according to one embodiment of the invention
Schematic diagram.As shown in figure 4, there is reference voltage Vref the first reference voltage level Vref1, data voltage Vdata to have
First data voltage level Vdata1.In an embodiment, the first reference voltage level Vref1 and the first data voltage level
Vdata1 can determine that light emitting diode OLED shows the brightness of general modfel, and general luminance patterns are set as 350 nits herein
(brill, nit).Data voltage Vdata is positive voltage and reference voltage Vref is negative voltage.
Then, driving method 300 executes step S320 in the first period T1, and the adjustment of power supply circuit 140 is with reference to electricity
Press the voltage level of Vref.In an embodiment, power supply circuit 140 is by reference voltage Vref by the first reference voltage level
Vref1 is adjusted to the second reference voltage level Vref2.As shown in 4A figure, power supply circuit 140 increases reference voltage Vref
Negative voltage, therefore adjusting the second reference voltage level Vref2 can be smaller than the first reference voltage level Vref1, the second reference voltage
There is reference voltage measures of dispersion Vref_diff between level Vref2 and the first reference voltage level Vref1.For example, second
Reference voltage level Vref2 is -10V, and the first reference voltage level Vref1 is -5V, in the case, reference voltage measures of dispersion
Vref_diff is -10V- (- 5V)=- 5V, therefore reference voltage measures of dispersion Vref_diff is negative value.
Then, driving method 300 executes step S330 in the first period T1, and source electrode drive circuit 110 adjusts data electricity
Press the voltage level of Vdata.In an embodiment, source electrode drive circuit 110 is first by data voltage Vdata by the first data voltage
Level Vdata1 is adjusted to the second data voltage level Vdata2, then the second data voltage level Vdata2 is adjusted to third number
According to voltage level Vdata3.As shown in 4A figure, source electrode drive circuit 110 increases the positive voltage of data voltage Vdata, therefore adjusts
Whole second data voltage level Vdata2 can be bigger than the first data voltage level Vdata1, third data voltage level Vdata3 meeting
Bigger than the second data voltage level Vdata2, third data voltage level Vdata3 has with the second data voltage level Vdata2
Between data voltage difference amount Vdata_diff, the second data voltage level Vdata2 and the first data voltage level Vdata1
With data voltage difference amount Vdata_diff.
For example, third data voltage level Vdata3 be 15V, the second data voltage level Vdata2 be 10V, first
Data voltage level Vdata1 is 5V, and in the case, data voltage difference amount Vdata_diff is 15V-10V=5V, therefore
Data voltage difference amount Vdata_diff is positive value.In this way, reference voltage Vref can continue to reduce, data voltage Vata meeting
Continue to increase, the voltage differences continuous enlargement between reference voltage Vref and data voltage Vata, brightness can be from general modfel
Gradually it is promoted to high brightness mode.
Then, driving method 300 executes step S340 pixel circuit 130 and receives by data voltage Vdata and with reference to electricity
Vref is pressed, and to flow through hair according to third data voltage level Vdata3 and the second reference voltage level Vref2 control
The driving current Id of optical diode OLED.As shown in figure 4, high brightness mode is set as 1000nits herein, from general brightness
The 1000nits that the 350nits of mode is adjusted to high brightness mode is segmented into multiple periods and brightness adjustment lasts about greatly 30
~80 milliseconds, and the first period T1 is about 5~15 milliseconds, therefore 5~8 periods are probably had during brightness adjustment.
Data voltage Vdata adjusted into data voltage level Vdatan to the end in the last one period Tm and by reference voltage
The reference voltage level Vrefn of Vref adjustment to the end, to determine the driving current Id of light emitting diode OLED.
In an embodiment, please refer to 4B figure, 4B figure be according to the data voltage Vdata of one embodiment of the invention and
The schematic diagram of reference voltage Vref.As shown in 4B figure, power supply circuit 140 is by reference voltage Vref by the first reference voltage
Level Vref1 is adjusted to the second reference voltage level Vref2, and power supply circuit 140 reduces reference voltage Vref negative voltage, because
The second reference voltage level Vref2 of this adjustment can be bigger than the first reference voltage level Vref1, the second reference voltage level Vref2
There is reference voltage measures of dispersion Vref_diff between the first reference voltage level Vref1.For example, the second reference voltage
Level Vref2 is -5V, and the first reference voltage level Vref1 is -10V, in the case, reference voltage measures of dispersion Vref_diff
For -5V- (- 10V)=5V, therefore reference voltage measures of dispersion Vref_diff is positive value.
Hold above-mentioned, data voltage Vdata is first adjusted to by source electrode drive circuit 110 by the first data voltage level Vdata1
Second data voltage level Vdata2, then the second data voltage level Vdata2 is adjusted to third data voltage level
Vdata3.Source electrode drive circuit 110 reduces the positive voltage of data voltage Vdata, therefore adjusts the second data voltage level
Vdata2 can be smaller than the first data voltage level Vdata1, and third data voltage level Vdata3 can be than the second data voltage level
Vdata2 is small, and third data voltage level Vdata3 and the second data voltage level Vdata2 have data voltage difference amount
Also there is data voltage difference between Vdata_diff, the second data voltage level Vdata2 and the first data voltage level Vdata1
Different amount Vdata_diff.
For example, third data voltage level Vdata3 be 5V, the second data voltage level Vdata2 be 10V, first
Data voltage level Vdata1 is 15V, and in the case, data voltage difference amount Vdata_diff is 5V-10V=-5V, therefore
Data voltage difference amount Vdata_diff is negative value.In this way, reference voltage Vref can continue to increase, data voltage Vata meeting
Lasting to reduce, the voltage differences between reference voltage Vref and data voltage Vata persistently reduce, and brightness can be from high brightness mould
Formula is reduced to general modfel gradually.
In another embodiment, the 5th figure is please referred to, the 5th figure is the stream according to the driving method 500 of one embodiment of the invention
Cheng Tu.Driving method 500 is suitable for display device 100, and driving method 500 executes step S510 and step S520, pixel electricity
Road 130 receives the data voltage Vdata exported by source electrode drive circuit 110 and the reference exported by power supply circuit 140
Voltage Vref, then in M period, power supply circuit 140 adjusts reference voltage Vref M times.
Hold it is above-mentioned, please also refer to 4A figure and 4B scheme, as shown in 4A figure, high brightness mode is set as herein
1000nits, the 1000nits for being adjusted to high brightness mode from the 350nits of general luminance patterns be segmented into M period and
Brightness adjustment lasts about greatly 30~80 milliseconds, and the first period T1 is about 5~15 milliseconds, therefore big during brightness adjustment
Generally have 5~8 periods.In this way, which reference voltage Vref can at least adjust 5~8 times.
Hold it is above-mentioned, driving method 500 execute step S530 in one of them period of M period, source electrode drive circuit 110
Data voltage Vdata is adjusted into n times.For example, data voltage Vdata is in the embodiment shown in 4A figure and 4B figure
Adjustment 2 times, can also optionally adjust the adjustment number of data voltage Vdata, and the present invention is not subject to the limits.
Hold it is above-mentioned, driving method 500 execute step S540 pixel circuit 130 receive by data voltage Vdata and reference
Voltage Vref, and it is electric according to the driving that data voltage Vdata and reference voltage Vref control flow through light emitting diode OLED
Flow Id.The operation of step S540 is identical as step S340, and details are not described herein.As shown in 4A figure and 4B figure, in M period
Interior, power supply circuit 140 can adjust reference voltage Vref M times, and source electrode drive circuit 110 is by data voltage Vdata tune
It is M*N times whole.
In another embodiment, scheme please also refer to 6A figure, 6B figure and 6C, 6A figure is real according to the present invention one
The flow chart of the driving method 600 of example is applied, 6B figure and 6C figure are the signal according to the reference voltage of one embodiment of the invention
Figure.Driving method 600 is suitable for display device 100, and driving method 600 executes step S610, and pixel circuit 130 is received by source electrode
The data voltage Vdata and the reference voltage Vref exported by power supply circuit 140 that driving circuit 110 exports, and root
The driving current Id of light emitting diode OLED is flowed through according to reference voltage Vref control.As shown in 6B figure, reference voltage Vref tool
There is the first reference voltage level Vref1, in an embodiment, the first reference voltage Vref 1 and data voltage Vdata can determine
Determine the brightness that light emitting diode OLED shows general modfel, general luminance patterns are set as 350nits herein.
Then, driving method 600 executes step S620 in period T1, and power supply circuit 140 adjusts reference voltage
The voltage level of Vref.As shown in 6B figure, power supply circuit 140 increases reference voltage Vref negative voltage, by reference voltage
Vref is adjusted to the second reference voltage level Vref2 by the first reference voltage level Vref1, therefore can be by reference voltage Vref
Voltage differences continuous enlargement between data voltage Vata, brightness can be promoted to high brightness mode gradually from general modfel.
Hold it is above-mentioned, as shown in 6C figure, power supply circuit 140 reduce reference voltage Vref negative voltage, by reference voltage
Vref is adjusted to the second reference voltage level Vref2 by the first reference voltage level Vref1, therefore can be by reference voltage Vref
Voltage differences between data voltage Vata persistently reduce, and brightness can be reduced to general modfel from high brightness mode gradually.
Then, driving method 600 executes step S630 pixel circuit 130 and receives data voltage Vdata and reference voltage
Vref, and controlled according to the voltage level of data voltage Vdata and the second reference voltage level Vref2 of reference voltage Vref
System flows through the driving current Id of light emitting diode OLED.As shown in 6B figure, high brightness mode is set as 1000nits herein, from
The 1000nits that the 350nits of general luminance patterns is adjusted to high brightness mode is segmented into multiple periods, at the last one
Reference voltage Vref is adjusted reference voltage level Vrefn to the end by section Tm, to determine the driving electricity of light emitting diode OLED
Flow Id.Likewise, as shown in 6C figure, it, can also be by high brightness mode by the voltage level of adjustment reference voltage Vref
1000nits adjusts back the 350nits of general luminance patterns.
In another embodiment, scheme please also refer to 7A figure, 7B figure and 7C, 7A figure is real according to the present invention one
The flow chart of the driving method 700 of example is applied, 7B figure and 7C figure are the signal according to the reference voltage of one embodiment of the invention
Figure.Driving method 700 is suitable for display device 100, and driving method 700 executes step S710, and pixel circuit 130 is received by source electrode
The data voltage Vdata and the reference voltage Vref exported by power supply circuit 140 that driving circuit 110 exports, and root
The driving current Id of light emitting diode OLED is flowed through according to data voltage Vdata control.As shown in 7B figure, reference voltage Vdata
With the first data voltage level Vdata1, in an embodiment, reference voltage Vref and the first data voltage Vdata1 can
To determine that light emitting diode OLED shows the brightness of general modfel, general luminance patterns are set as 350nits herein.
Then, driving method 700 executes step S720 in period T1, and source electrode drive circuit 110 adjusts data voltage
The voltage level of Vdata.As shown in 7B figure, source electrode drive circuit 110 increases the positive voltage of data voltage Vdata, by data
Voltage Vdata is adjusted to the second data voltage level Vdata2 by the first data voltage level Vdata1, then the second data are electric
Pressure level Vdata2 is adjusted to third data voltage level Vdata3, therefore can be by reference voltage Vref and data voltage
Voltage differences continuous enlargement between Vdata, brightness can be promoted to high brightness mode gradually from general modfel.
Hold it is above-mentioned, as shown in 7C figure, source electrode drive circuit 110 reduce data voltage Vdata positive voltage, by data electricity
Pressure Vdata is adjusted to the second data voltage level Vdata2 by the first data voltage level Vdata1, then by the second data voltage
Level Vdata2 is adjusted to third data voltage level Vdata3, thus can by reference voltage Vref and data voltage Vata it
Between voltage differences persistently reduce, brightness can be reduced to general modfel from high brightness mode gradually.
Then, driving method 700 executes step S730 pixel circuit 130 and receives data voltage Vdata and reference voltage
Vref, and according to the third data voltage level Vdata3 of data voltage Vdata and the voltage level of reference voltage Vref
Control flows through the driving current Id of light emitting diode OLED.As shown in 7B figure, high brightness mode is set as 1000nits herein,
The 1000nits for being adjusted to high brightness mode from the 350nits of general luminance patterns is segmented into multiple periods, at the last one
Data voltage Vdata is adjusted data voltage level Vdatan to the end by period Tm, to determine the drive of light emitting diode OLED
Streaming current Id.Likewise, as shown in 7C figure, it, can also be by high brightness mode by the voltage level of adjustment data voltage Vdata
1000nits adjust back the 350nits of general luminance patterns.
In conclusion the driving method of the present invention its mainly be adjustment data voltage and reference voltage with control pixel electricity
The cross-pressure on road, by increase or decrease stage by stage data voltage and reference voltage in the way of so that diode displaying
Brightness can brighten or gradually dimmed gradually within a period, reach and human eye will not be felt not because brightness change is excessive
Suitable effect.
Some vocabulary is used in specification and claim to censure specific element.However, affiliated technology
Has usually intellectual in field, it is to be appreciated that same element may be called with different nouns.Specification and application
The scope of the patents is come with the difference of element functionally as differentiation not in such a way that the difference of title is as element is distinguished
Benchmark.The " comprising " mentioned by specification and claim is open term, thus should be construed to " include but not
It is defined in ".In addition, " connection " includes any direct and indirect connection means herein.Therefore, if it is described herein that first element connects
It is connected to second element, then representing first element can be by being electrically connected or being wirelessly transferred, and the signals connection type such as optical delivery
It is attached directly to second element, or electrical property or signal are connected to this second yuan indirectly by other elements or connection means
Part.
In addition, unless specified in the instructions, otherwise the term of any singular lattice all includes the connotation of multiple grid simultaneously.
The foregoing is merely a prefered embodiment of the invention, and all equivalent changes and modifications done according to claims of the present invention are all answered
It belongs to the scope of the present invention.
Claims (15)
1. a kind of driving method is suitable for display device, wherein the display device includes source electrode drive circuit, gate driving circuit
And multiple pixel circuits, the driving method include:
The pixel circuit receives the first data voltage exported by the source electrode drive circuit and by power supply circuit output
First reference voltage, and the driving for flowing through light emitting diode is controlled according to first data voltage and first reference voltage
Electric current；
In in the first period, which is adjusted to the second reference voltage for first reference voltage；
In first period, which is adjusted to the second data voltage, and the source electrode for first data voltage
Second data voltage is adjusted to third data voltage again by driving circuit, first data voltage, second data voltage with
The third data voltage is different each other；And
The pixel circuit receives the third data voltage and second reference voltage, and according to the third data voltage and
Second reference voltage controls the driving current for flowing through the light emitting diode.
2. driving method as described in claim 1, which is characterized in that between first reference voltage and second reference voltage
With a reference voltage measures of dispersion, there is data voltage difference amount between first data voltage and second data voltage, it should
There is the data voltage difference amount between second data voltage and the third data voltage.
3. driving method as described in claim 1, which is characterized in that be greater than second reference voltage in first reference voltage
When, which is less than second data voltage, which is less than the third data voltage.
4. driving method as claimed in claim 3, which is characterized in that be less than second reference voltage in first reference voltage
When, which is greater than second data voltage, which is greater than the third data voltage.
5. a kind of driving method is suitable for display device, wherein the display device includes source electrode drive circuit, gate driving circuit
And multiple pixel circuits, the driving method include:
The pixel circuit receives the data voltage exported by the source electrode drive circuit and the reference exported by power supply circuit
Voltage；
In one of them period of M period, which adjusts n times for the data voltage；And
The pixel circuit is received by the data voltage and the reference voltage, and according to the data voltage and the reference voltage
Control flows through a driving current of light emitting diode.
6. driving method as claimed in claim 5, which is characterized in that in the M period, the source electrode drive circuit is by the number
It is adjusted M*N times according to voltage.
7. driving method as claimed in claim 5, which is characterized in that the power supply circuit adjusts the reference voltage each time
When, the reference voltage adjusted has reference voltage measures of dispersion with the reference voltage before adjustment；The source electrode drive circuit is every
When once adjusting the data voltage, the data voltage before the data voltage adjusted and adjustment has data voltage difference
Amount.
8. driving method as claimed in claim 7, which is characterized in that when the reference voltage measures of dispersion is negative value, the data
Voltage differences amount is positive value；When the reference voltage measures of dispersion is positive value, which is negative value.
9. driving method as claimed in claim 5, it is characterised in that the time span of one of them period of the M period is
5~15 milliseconds, the time span sum total of the M period is 30~80 milliseconds.
10. a kind of driving method is suitable for display device, wherein the display device includes source electrode drive circuit, gate driving electricity
Road and multiple pixel circuits, the driving method include:
The pixel circuit receives the data voltage exported by the source electrode drive circuit and by the first of power supply circuit output
Reference voltage, and the driving current for flowing through light emitting diode is controlled according to first reference voltage；
In in a period, which is adjusted to the second reference voltage for first reference voltage；And
The pixel circuit receives the data voltage and second reference voltage, and according to the data voltage and second ginseng
Examine the driving current that voltage control flows through the light emitting diode；
Wherein, there is a reference voltage measures of dispersion between first reference voltage and second reference voltage.
11. driving method as claimed in claim 10, which is characterized in that first reference voltage is greater than the second reference electricity
Pressure.
12. driving method as claimed in claim 10, which is characterized in that first reference voltage is less than the second reference electricity
Pressure.
13. a kind of driving method is suitable for display device, wherein the display device includes source electrode drive circuit, gate driving electricity
Road and multiple pixel circuits, the driving method include:
The pixel circuit receives the first data voltage exported by the source electrode drive circuit and by power supply circuit output
Reference voltage, and the driving current for flowing through light emitting diode is controlled according to first data voltage；
In in a period, which is adjusted to the second data voltage, and the source drive for first data voltage
Second data voltage is adjusted to third data voltage again by circuit, first data voltage, second data voltage and this
Three data voltages are different each other；And
The pixel circuit receives the third data voltage and the reference voltage, and according to the third data voltage and the ginseng
Examine the driving current that voltage control flows through the light emitting diode；
Wherein, there is data voltage difference amount, second data voltage between first data voltage and second data voltage
There is the data voltage difference amount between the third data voltage.
14. driving method as claimed in claim 13, which is characterized in that first data voltage is greater than second data electricity
Pressure, second data voltage are greater than the third data voltage.
15. driving method as claimed in claim 13, wherein first data voltage is less than second data voltage, this
Two data voltages are less than the third data voltage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108101544 | 2019-01-15 | ||
| TW108101544A TWI699750B (en) | 2019-01-15 | 2019-01-15 | Driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109801598A true CN109801598A (en) | 2019-05-24 |
| CN109801598B CN109801598B (en) | 2021-02-02 |
Family
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| CN111369941A (en) * | 2020-03-19 | 2020-07-03 | 武汉华星光电半导体显示技术有限公司 | Pixel circuit and display panel |
| CN114582281A (en) * | 2022-03-17 | 2022-06-03 | 京东方科技集团股份有限公司 | Method and apparatus for panel display gamma correction |
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| KR20230081422A (en) * | 2021-11-30 | 2023-06-07 | 엘지디스플레이 주식회사 | Power supplier circuit and display device incluning the same |
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Also Published As
| Publication number | Publication date |
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| TWI699750B (en) | 2020-07-21 |
| TW202029173A (en) | 2020-08-01 |
| CN109801598B (en) | 2021-02-02 |
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