CN102800274B - Display device and control method thereof - Google Patents
Display device and control method thereof Download PDFInfo
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- CN102800274B CN102800274B CN201110227202.6A CN201110227202A CN102800274B CN 102800274 B CN102800274 B CN 102800274B CN 201110227202 A CN201110227202 A CN 201110227202A CN 102800274 B CN102800274 B CN 102800274B
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Abstract
The invention provides a display device and a control method thereof. The display device includes a plurality of pixels and a driving module. Each pixel is capable of saving electric charges and emits light based on the saved electric charges. During a frame period, the driving module updates the electric charges saved by all of the pixels. The frame period includes a plurality of array periods. Each array period is provided with at least one programming period and at least one lighting period. During the programming period, the driving module does not lighten all of the pixels. During the lighting period, the driving module lightens all of the pixels.
Description
Technical field
The present invention relates to a kind of display device, particularly relate to one and in (frame), repeatedly put the display device of bright pixel during a picture.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode; OLED) display has that volume is thin, lightweight, luminescence efficiency is high, driving voltage is low and the advantage such as processing procedure is simple, thus becomes one of selection of new flat display apparatus from generation to generation.Can divide into according to its type of drive, passive organic light-emitting (PM-OLED) and active organic light-emitting (AM-OLED) display.
Generally speaking, the display panel of active organic light-emitting display has multiple pixel (pixel).Each pixel at least has a driving transistors and a light-emitting component.The drive current that light-emitting component produces according to driving transistors and luminous.But, when the driving transistors in different pixels has different critical voltage (threshold voltage), then under identical drive condition, different driving transistorss may produce different drive currents, thus causes light-emitting component to present incorrect brightness.
In order to solve the impact of uneven critical voltage, existing mode is to provide the pixel structure of a kind of 6T1C (i.e. 6 transistors and 1 electric capacity).But the framework of 6T1C is by the reduction of the increase and aperture opening ratio (aperture ratio) that cause cost.
Summary of the invention
The invention provides a kind of display device, comprise multiple pixel and a driver module.Each pixel can store electric charge, and luminous according to stored electric charge.During a picture, driver module upgrades the electric charge stored by all pixels.During there are during picture multiple row.Each row during there is at least one programming during and at least one light period.During programming, driver module does not light all pixels.Lighting period, driver module lights all pixels.
The present invention also provides a kind of control method, is applicable to multiple pixel.Control method of the present invention comprises, and during a picture, upgrades the electric charge stored by all pixels, during there are multiple row during this picture, each row during there is at least one programming during and at least one light period; During programming, do not light all pixels; And lighting period, light all pixels.
For making the features and advantages of the present invention become apparent, cited below particularly go out preferred embodiment, and be described with reference to the accompanying drawings as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the display device of one embodiment of the invention.
Fig. 2 A and Fig. 2 B is the possible sequential control figure of the display device of one embodiment of the invention.
Fig. 3 and Fig. 5 is the possible embodiment of pixel of the present invention.
Fig. 4 and Fig. 6 is the sequential control figure of the possible embodiment of pixel of the present invention.
Reference numeral explanation
100: display device;
P
11~ P
mn: pixel;
110: driver module;
111: scanner driver;
113: data driver;
310,510: storage element;
320,520: driver element;
330,530: luminescence unit;
340: lighting unit;
350: linkage unit;
361,362,561,562: node;
411: during replacement;
412: between write detection period;
540: reset cell;
550: switch unit;
S
sN1~ S-
sNn: sweep signal;
S
dA1~ S
dAm: data-signal;
200,210: during picture;
RT
1~ RT
n, RT
k: during row;
S
cN1~ S
cNn: control signal;
SW1, SW2: switch;
S
lV1: datum;
I
11, I
500: drive current
S
sW: switching signal;
S
eM1~ S
eMn: light signal;
S
lV-RES1: reset level;
S
rES1~ S
rESnreset signal;
V
361, V
561: level;
T1 ~ T3,521,551,541: transistor;
PVDD, PVEE: operating voltage;
ML
h1~ ML
hn, ML
v1~ ML
vm: metal wire;
PT
1~ PT
n, PT
1-1~ PT
k-1, PT
1-2~ PT
k-2: during programming;
ET
1~ ET
n, ET
1-1~ ET
k-1, ET
1-2~ ET
k-2: light period.
Embodiment
Fig. 1 is the schematic diagram of the display device of one embodiment of the invention.As shown in the figure, display device 100 comprises pixel P
11~ P
mnand a driver module 110.Pixel P
11~ P
mnall can store electric charge, and luminous according to stored electric charge.Driver module 110 upgrades pixel P
11~ P
mnstored electric charge, and make pixel P
11~ P
mnluminous according to stored electric charge.
During a picture in (frame), driver module 110 has upgraded all pixel P
11~ P
mnstored electric charge, and repeatedly put bright pixel P
11~ P
mn.Due to pixel P
11~ P
mnrepeatedly present brightness, therefore user can't perceive display device 100 glimmers (Flicker) phenomenon.
In the present embodiment, driver module 110 comprises one scan driver (scan driver) 111 and a data driver (data driver) 113.Scanner driver 111 provides sweep signal S
sN1~ S-
sNngive pixel P
11~ P
mn.Data driver 113 provides data-signal S
dA1~ S
dAmgive pixel P
11~ P
mn.In addition, scanner driver 111 and data driver 113 can respectively by metal wire ML
h1~ ML
hnand ML
v1~ ML
vm, provide multiple control signal to give pixel P
11~ P
mn, in order to upgrade pixel P
11~ P
mnstored electric charge, or control pixel P
11~ P
mnlighting time.
In other embodiments, control signal can only by scanner driver 111, data driver 113 or other driver (as clock controller TCON; Do not show) provided.In addition, each pixel by single or multiple metal wire, reception control signal.In FIG, pixel P
11~ P
mnby metal wire ML
h1~ ML
hnand ML
v1~ ML
vm, receive the control signal from scanner driver 111 and data driver 113, but and be not used to limit the present invention.
Fig. 2 A is that one of the display device of one embodiment of the invention may sequential control figure.As shown in the figure, picture period 200 comprises row period RT
1~ RT
n.Row period RT
1~ RT
nduring having a programming separately, (programming period) and one lights period (emitting period).During programming, do not put bright pixel P
11~ P
mn.Lighting period, some bright pixel P
11~ P
mn.By putting bright pixel P in multiple times
11~ P
mn, just can avoid the picture generation scintillation that display device 100 presents.In the present embodiment, at the period RT that programmes
1~ RT
n, the electric charge stored by corresponding row pixel, and all early than lighting period during programming interior during each row.
To arrange period RT
1and RT
2for example, at the period PT that programmes
1, do not put bright pixel P
11~ P
mn, and upgrade first row pixel (as P
11~ P
m1) stored by electric charge.In the present embodiment, first row pixel P
11~ P
m1be couple to the first scan electrode, in order to receive sweep signal S
sN1, and according to sweep signal S
sN1, the electric charge that renewal itself is stored.Then, period ET is being lighted
1, light all pixel P
11~ P
mn.Now (light period ET
1), first row pixel can be luminous according to the electric charge after renewal, and other row pixel is luminous by the electric charge stored by script.
Then, at the period PT that programmes
2, do not put bright pixel P
11~ P
mn, and upgrade secondary series pixel (as P
12~ P
m2) stored by electric charge.In the present embodiment, secondary series pixel P
12~ P
m2be couple to the second scan electrode, in order to receive sweep signal S
sN2, and according to sweep signal S
sN2, the electric charge that renewal itself is stored.Then, period ET is being lighted
2, light all pixel P
11~ P
mn.Now, secondary series pixel can be luminous according to the electric charge after renewal, and other row pixel is luminous by the electric charge stored by script.
Therefore, within picture period 200, driver module 110 is by renewable complete all pixel P
11~ P
mnstored electric charge.In addition, the present invention does not limit and how to put bright pixel P
11~ P
mn.In the present embodiment, be the control signal S provided by driver module 110
cN1~ S
cNn, light or do not put bright pixel P
11~ P
mn.For example, as control signal S
cN1~ S
cNnfor low level, pixel P
11~ P
mnbe not lit.On the contrary, as control signal S
cN1~ S
cNnfor high level, pixel P
11~ P
mnbe lit.
In fig. 2, during each row, only upgrade the electric charge stored by single row pixel, but and be not used to limit the present invention.In another embodiment (as shown in Figure 2 B), the electric charge stored by two row pixels is upgraded during each row.In other embodiments, the pixel that during each row, renewable three row are above.
In fig. 2b, picture period 210 has row period RT
1~ RT
k.Row period RT
1~ RT
kduring there are two programmings separately and two light period.Because the manner of execution in during each row is all identical, therefore only to arrange period RT
1for example, its motion flow is described.
Row period RT
1there is programming period PT
1-1, PT
1-2and light period ET
1-1, ET
1-2, wherein programme period PT
1-1early than programming period PT
1-2, programming period PT
1-2early than lighting period ET
1-1, light period ET
1-1early than lighting period ET
1-2.
At the period PT that programmes
1-1, sweep signal S
sN1for low level.Therefore, first row pixel (P
11~ P
m1) stored by electric charge be updated.At the period PT that programmes
1-2, sweep signal S
sN2for low level.Therefore, secondary series pixel (P
12~ P
m2) stored by electric charge be updated.Lighting period ET
1-1and ET
1-2, control signal S
cN1~ S
cNnfor high level, therefore pixel P
11~ P
mnall be lit.
The present invention does not limit the electric charge how upgraded stored by pixel.In the present embodiment, as sweep signal S
sN1~ S
sNnone be low level, the just pixel of renewable corresponding row, but and be not used to limit the present invention.In other embodiments, as sweep signal S
sN1~ S
sNnduring for high level, just renewable corresponding pixel.
Similarly, in the present embodiment, as control signal S
cN1~ S
cNnduring for high level, can bright pixel be put, and as control signal S
cN1~ S
cNnduring for low level, do not put bright pixel, but this discloses and is not used to limit the present invention.In other embodiments, can at control signal S
cN1~ S
cNnduring for high level, do not put bright pixel, and at control signal S
cN1~ S
cNnduring for low level, some bright pixel.
Fig. 3 is that one of pixel of the present invention may example.For the clear annexation presented between pixel, Fig. 3 presents pixel P
11, P
21, P-
12and P
22inside structure.But, due to pixel P
11, P
21, P-
12and P
22inside structure all identical, therefore only with pixel P
11for example, its operating principle is described.As shown in the figure, pixel P
11comprise storage element 310, driver element 320, luminescence unit 330, lighting unit 340 and a linkage unit 350.
Storage element 310 is coupled between node 361 and 362.Node 361, by interrupteur SW 1, receives operating voltage PVDD or data-signal S
dA1.The present invention does not limit operating voltage PVDD and data-signal S
dA1source.In a possibility embodiment, operating voltage PVDD or data-signal S
dA1provided by data driver 113.For example, data driver 113 can by single metal wire (as data line) or two metal wires, transfer operation voltage PVDD or data-signal S
dA1give node 361.
In addition, node 361, also by interrupteur SW 2, receives a datum S
lV1.The present invention does not also limit datum S
lV1source.In a possibility embodiment, datum S
lV1provided by data driver 113.In the present embodiment, storage element 310 is a capacitor, but and is not used to limit the present invention.Any element storing electric charge all can be used as storage element 310.
The electric charge of driver element 320 stored by storage element 310, produces a drive current I
11, wherein drive current I
11be not subject to the impact of the critical voltage (threshold voltage) of driver element 320.In the present embodiment, driver element 320 is a P-type crystal pipe T1, its grid couple nodes 362, and its source electrode receives an operating voltage PVDD, and its drain electrode couples lighting unit 340.
Luminescence unit 330 is according to drive current I
11and it is luminous.The present invention does not limit the kind of luminescence unit 330.In a possibility embodiment, luminescence unit 330 is an Organic Light Emitting Diode (Organic LightEmitting Diode; OLED).
Lighting unit 340 is in order to provide drive current I
11give luminescence unit 330.In the present embodiment, lighting unit 340 is a N-type transistor T3.The grid of transistor T3 receives one and lights signal S
eM1, the drain electrode of its drain electrode coupling transistors T1, its source electrode couples luminescence unit 330.The present invention does not limit and lights signal S
eM1source.In a possibility embodiment, light signal S
eM1provided by scanner driver 111.In other embodiments, lighting unit 340 can be a P-type crystal pipe.Because the those skilled in the art that are replaced into of N-type and P-type crystal pipe known very well, therefore repeat no more.
Linkage unit 350 connects (diode connection) in order to make driver element 320 form a diode.In the present embodiment, linkage unit 350 is a P-type crystal pipe T2, and its grid receives one scan signal S
sN1, its source electrode couple nodes 362, the drain electrode of its drain electrode coupling transistors T1.In other embodiments, linkage unit 350 can be a N-type transistor.
Driver module 110 by the level of Controlling vertex 361 and 362, can make drive current I
11the impact of the critical voltage of transistor T1 can not be subject to.In the present embodiment, driver module 110 is by sweep signal S
sN1, light signal S
eM1, datum S
lV1, data-signal S
dA1and switching signal S
sW, conducting or off transistor T1 ~ T3, and then the level reaching Controlling vertex 361 and 362.The control mode of driver module 110 will be described below.
First, driver module 110 makes the level of node 361 equal operating voltage PVDD, and by sweep signal S
sN1and light signal S
eM1, turn-on transistor T2 and T3.(please refer to Fig. 4) in the present embodiment, programming period PT
1to have between replacement period 411 and a write detection period 412.
Resetting period 411, switching signal S-
sWfor low level, therefore can actuating switch SW1.Now, the level V of node 361
361equal operating voltage PVDD.During this period, sweep signal S
sN1and light signal S
eM1be respectively low level and high level.Therefore, transistor T2 and T3 is switched on.Now, node 362 equals a low level.
Write detection period between 412, driver module 110 provides a data-signal S
dA1give node 361, and by sweep signal S
sN1and light signal S
eM1, turn-on transistor T2 and off transistor T3.In the present embodiment, due to switching signal S
sWbe still low level, therefore actuating switch SW1.Now, node 361 receives data-signal S
dA1.During this period, sweep signal S
sN1and light signal S
eM1be low level.Therefore, transistor T2 is switched on, and transistor T3 is not switched on.
Because transistor T2 is switched on, therefore together with the grid of transistor T1 is coupled in drain electrode.Therefore, transistor T1 forms a diode and connects, and the level of node 362 equals the sum total (PVDD+Vth) of the critical voltage Vth of operating voltage PVDD and transistor T1.
Lighting period ET
1, driver module 110 provides a datum S
lV1give node 361, and by sweep signal S
sN1and light signal S
eM1, off transistor T2 turn-on transistor T3.In the present embodiment, switching signal S
sWfor high level, therefore can actuating switch SW2, in order to reference to level S
lV1be sent to node 361.Now, sweep signal S
sN1and light signal S
eM1be high level.Therefore, transistor T2 is not switched on, and transistor T3 is switched on.
Because transistor T3 is switched on, therefore can by drive current I
11be sent to luminescence unit 330, in order to light luminescence unit 330.Drive current I
11generation formula as follows:
I
11＝Kn*(V
GS-Vth)
2.................................(1)
Wherein, Kn is the parameter of transistor T1, V
gSfor the pressure reduction between the grid of transistor T1 and source electrode, Vth is the critical voltage of transistor T1.
Lighting period ET
1, because the level of node 361 is by data-signal S
dA1be changed to datum S
lV1, therefore the level of node 362 is PVDD+Vth+S
lV1-S
dA1.Pressure reduction between the grid of transistor T1 and source electrode is brought into formula (1), just can obtain following formula:
I
11＝Kn*(PVDD+Vth+S
LV1-S
DA1-PVDD-Vth)
2......(2)
Can following formula be obtained after abbreviation:
I
11＝Kn*(S
LV1-S
DA1)
2.......................................(3)
From formula (3), drive current I
11the impact of the critical voltage of transistor T1 can not be subject to.Therefore, when the critical voltage of the transistor T1 in each pixel is uneven, uneven critical voltage can't affect the brightness of each luminescence unit.
Fig. 5 is another possibility embodiment of pixel of the present invention.Due to pixel P
11~ P
mninternal circuit configuration all identical, therefore only with pixel P
11for example.As shown in the figure, pixel P
11comprise storage element 510, driver element 520, luminescence unit 530, reset cell 540 and a switch unit 550.
Storage element 510 is coupled between node 561 and 562.The electric charge of driver element 520 stored by storage element 510, produces a drive current I
500.In the present embodiment, driver element 520 is a P-type crystal pipe 521, its grid couple nodes 562, and its source electrode receives operating voltage PVDD, and its drain electrode couples luminescence unit 530.In the present embodiment, drive current I
500be not subject to the impact of the critical voltage of driver element 520.
Luminescence unit 530 is according to drive current I
500and luminous, and and driver element 520 be series between operating voltage PVDD and PVEE.Reset cell 540 is in order to discharge to node 562.In the present embodiment, reset cell 540 is a N-type transistor 541, and its grid receives a reset signal S
rES1, its drain electrode one resets level S
lV-RES1, its source electrode couple nodes 562.The present invention does not limit reset signal S
rES1with replacement level S
lV-RES1source.In a possibility embodiment, reset signal S
rES1thered is provided by scanner driver 111, and reset level S
lV-RES1thered is provided by data driver 113.
Switch unit 550 couple nodes 562 and driver element 520.In the present embodiment, switch unit 550 is a P-type crystal pipe 551, and its grid receives one scan signal S
sN1, its source electrode couple nodes 562, the drain electrode of its drain electrode coupling transistors 521.
In the present embodiment, driver module 110 is by operating voltage PVDD, PVEE, sweep signal S
sN1, reset signal S
rES1, data-signal S
dA1and reset level S
lV-RES1, the level of Controlling vertex 561 and 562, and then make drive current I
500the impact of the critical voltage of driver element 520 can not be subject to.The control method of driver module 110 will be described below.
Please refer to Fig. 6, at the period PT that programmes
1interior one resets address period 611, and driver module 110 provides a data-signal S
dA1give node 561, and by reset signal S
rES1, turn-on transistor 541.In the present embodiment, reset signal S
rES1for high level, therefore can turn-on transistor 541.Therefore, the level of node 562 equals to reset level S
lV-RES1.
In the present embodiment, sweep signal S
sN1for low level, therefore turn-on transistor 551.In other embodiments, in replacement address period 611, sweep signal S
sN1can be high level, in order to off transistor 551.Because operating voltage PVEE is high level, therefore do not light luminescence unit 530.
Between detection period 612, node 561 is maintained at data-signal S
dA1level, and by reset signal S
rES1and sweep signal S
sN1, off transistor 541 and turn-on transistor 551.In the present embodiment, reset signal S
rES1for low level, therefore, transistor 541 is not switched on.Due to sweep signal S
sN1for low level, therefore can turn-on transistor 551.
Because transistor 551 is switched on, therefore transistor 521 is a diode connection.Therefore, the level of node 562 equals the critical voltage Vth sum (i.e. PVDD+Vth) of operating voltage PVDD and transistor 521.Now, because operating voltage PVEE is high level, therefore luminescence unit 530 is not lit.
Lighting period ET
1, driver module 110 provides a datum S
lV1give node 561, and by reset signal S
rES1and sweep signal S
sN1, off transistor 541 and 551.Because the level of node 561 is by S
dA1be changed to S
lV1, therefore, the level of node 562 equals PVDD+Vth+S
lV1-S
dA1.
The present invention does not limit datum S
lV1source.May in embodiment one, the data driver 113 in driver module 110 by single metal wire, during difference, data signal S
dA1or datum S
lV1give node 561.
In the present embodiment, due to sweep signal S
sN1and reset signal S
rES1be respectively high level and low level, therefore, off transistor 541 and 551.Now, because operating voltage PVEE is low level, therefore luminescence unit 530 can be lighted.
Level due to node 562 is PVDD+Vth+S
lV1-S
dA1, therefore, when transistor 521 produces drive current I according to above formula (1)
500when giving luminescence unit 530, the drive current I that it produces
500the impact of the critical voltage of transistor 521 can't be subject to.
During a picture, repeatedly light or do not light all pixels, therefore scintillation user can being avoided to perceive display device occur.In addition, during not putting bright pixel (during programming), upgrade the electric charge stored by least one row pixel, just can guarantee that display device presents correct picture.
Moreover, by the dot structure of Fig. 3 and Fig. 5, the impact that the uneven critical voltage of the driver element in pixel causes can be avoided.Therefore, when providing identical data-signal to give pixel, pixel can present identical brightness.
Unless otherwise defined, the general understanding of persond having ordinary knowledge in the technical field of the present invention is all belonged to (comprising technology and scientific terms) at this all vocabulary.In addition, unless clear expression, it is consistent that the definition of vocabulary in general dictionary should be interpreted as meaning in the article with its correlative technology field, and should not be construed as perfect condition or too formal voice.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention, those skilled in the art, under the premise without departing from the spirit and scope of the present invention; can do some changes and retouching, therefore protection scope of the present invention is as the criterion with claim of the present invention.
Claims (13)
1. a display device, comprising:
Multiple pixel, each pixel can store electric charge, and luminous according to stored electric charge; And
One driver module, during a picture, upgrade the electric charge stored by these pixels, during there are multiple row during this picture, each row during there is at least one programming during and at least one light period, these programming during, this driver module does not light these pixels, light period at these, this driver module lights these pixels, and wherein each pixel comprises:
One storage element, is coupled between a first node and a Section Point;
One driver element, according to the electric charge stored by this storage element, produce a drive current, wherein this drive current is not subject to the impact of the critical voltage of this driver element;
One luminescence unit, luminous according to this drive current, and and this driver element be series between one first operating voltage and one second operating voltage;
One reset cell, in order to this Section Point that discharges;
One switch unit, couples Section Point and this driver element;
Wherein this driver element is a first transistor, and its grid couples this Section Point, and its source electrode receives this first operating voltage, and its drain electrode couples this luminescence unit;
This reset cell is a transistor seconds, and its grid receives a reset signal, and its drain electrode reception one resets level, and its source electrode couples this Section Point;
This switch unit is a third transistor, and its grid receives one scan signal, and its source electrode couples this Section Point, and its drain electrode couples the drain electrode of this first transistor.
2. display device as claimed in claim 1, lights period early than this during this programming in wherein during each row.
3. display device as claimed in claim 1, wherein each row during have one first programming during, one second programming during, one first light period and one second light period, early than during this second programming during this first programming, this second programming during early than this first light period, this first light period early than this second light period.
4. display device as claimed in claim 1, during one first programming in wherein during these programmings, this driver module upgrades the Part I pixel in these pixels, during one second programming in during these programmings, this driver module upgrades the Part II pixel in these pixels, this Part I pixel couples one first scan electrode, and this Part II pixel couples one second scan electrode.
5. display device as claimed in claim 1, wherein has between a replacement address period and a detection period during this programming,
In this replacement address period, this driver module provides a data-signal to give this first node, and by this reset signal, this transistor seconds of conducting;
Between this detection period, this first node is maintained the level of this data-signal, and by this reset signal and this sweep signal, this transistor seconds of not conducting and this third transistor of conducting;
Light period at this, this driver module provides a datum to give this first node, and by this reset signal and this sweep signal, this second and third transistor of not conducting.
6. display device as claimed in claim 5, wherein during this write resets, this driver module passes through this sweep signal, this third transistor of conducting.
7. display device as claimed in claim 5, wherein during this write resets, this driver module passes through this sweep signal, this third transistor of not conducting.
8. display device as claimed in claim 5, wherein during this programming, this driver module makes this second operating voltage be one first level, in order to not light this luminescence unit, light period at this, this driver module makes this second operating voltage be a second electrical level, in order to light this luminescence unit.
9. display device as claimed in claim 1, wherein this luminescence unit is an Organic Light Emitting Diode.
10. a control method, is applicable to multiple pixel, and this control method comprises:
During a picture, upgrade the electric charge stored by these pixels, during there are multiple row during this picture, each row during there is at least one programming during and at least one light period;
During this programming, do not light these pixels; And
Light period at this, light these pixels, wherein each pixel comprises:
One storage element, is coupled between a first node and a Section Point;
One driver element, according to the electric charge stored by this storage element, produce a drive current, wherein this drive current is not subject to the impact of the critical voltage of this driver element;
One luminescence unit, luminous according to this drive current, and and this driver element be series between one first operating voltage and one second operating voltage;
One reset cell, in order to this Section Point that discharges;
One switch unit, couples Section Point and this driver element;
Wherein this driver element is a first transistor, and its grid couples this Section Point, and its source electrode receives this first operating voltage, and its drain electrode couples this luminescence unit;
This reset cell is a transistor seconds, and its grid receives a reset signal, and its drain electrode reception one resets level, and its source electrode couples this Section Point;
This switch unit is a third transistor, and its grid receives one scan signal, and its source electrode couples this Section Point, and its drain electrode couples the drain electrode of this first transistor.
11. control methods as claimed in claim 10, light period early than this during this programming in wherein during each row.
12. control methods as claimed in claim 10, wherein each row during have one first programming during, one second programming during, one first light period and one second light period, early than during this second programming during this first programming, this second programming during early than this first light period, this first light period early than this second light period.
13. control methods as claimed in claim 10, during one first programming in wherein during these programmings, upgrade the Part I pixel in these pixels, during one second programming in during these programmings, upgrade the Part II pixel in these pixels, this Part I pixel couples one first scan electrode, and this Part II pixel couples one second scan electrode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161490540P | 2011-05-26 | 2011-05-26 | |
| US61/490,540 | 2011-05-26 |
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| CN102800274A CN102800274A (en) | 2012-11-28 |
| CN102800274B true CN102800274B (en) | 2015-03-25 |
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| KR101350592B1 (en) * | 2011-12-12 | 2014-01-16 | 엘지디스플레이 주식회사 | Organic light-emitting display device |
| KR102033611B1 (en) * | 2013-02-25 | 2019-10-18 | 삼성디스플레이 주식회사 | Pixel, display device including the same and method therof |
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| US20070268210A1 (en) * | 2006-05-22 | 2007-11-22 | Sony Corporation | Display apparatus and method of driving same |
| US20080088547A1 (en) * | 2006-05-09 | 2008-04-17 | Tpo Displays Corp. | Display system and pixel driving circuit thereof |
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| TWI276032B (en) * | 2002-10-25 | 2007-03-11 | Wintek Corp | Active organic light emitting diode driving circuit |
| JP2005308857A (en) * | 2004-04-19 | 2005-11-04 | Sony Corp | Active matrix type display apparatus and driving method for the same |
| TWI344132B (en) * | 2006-10-25 | 2011-06-21 | Au Optronics Corp | Display panels and display units |
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| US20080088547A1 (en) * | 2006-05-09 | 2008-04-17 | Tpo Displays Corp. | Display system and pixel driving circuit thereof |
| US20070268210A1 (en) * | 2006-05-22 | 2007-11-22 | Sony Corporation | Display apparatus and method of driving same |
| CN101136170A (en) * | 2006-05-22 | 2008-03-05 | 索尼株式会社 | Display apparatus and method of driving same |
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| Publication number | Publication date |
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| CN102800274A (en) | 2012-11-28 |
| TWI455096B (en) | 2014-10-01 |
| TW201248590A (en) | 2012-12-01 |
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Address after: Guangdong province Shenzhen City, Longhua Town, Foxconn science and Technology Industrial Park E District 4 building, building 1, building Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Applicant after: Innolux Display Group Address before: Guangdong province Shenzhen City, Longhua Town, Foxconn science and Technology Industrial Park E District 4 building, building 1, building Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Applicant before: Chimei Optoelectronics Co., Ltd. |
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