CN104409044B - Organic glowing array substrate, driving method thereof and display device - Google Patents
Organic glowing array substrate, driving method thereof and display device Download PDFInfo
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- CN104409044B CN104409044B CN201410741704.4A CN201410741704A CN104409044B CN 104409044 B CN104409044 B CN 104409044B CN 201410741704 A CN201410741704 A CN 201410741704A CN 104409044 B CN104409044 B CN 104409044B
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Abstract
The invention relates to an organic glowing array substrate, a driving method thereof and a display device. The organic glowing array substrate comprises a display module, a data driver and a boost circuit module, wherein the display module is provided with a plurality of pixel units; the data driver is used for inputting data signals to the pixel units through data cables; the boost circuit module is arranged between the display module and the data driver, and is used for conducting pressure boosting treatment on the data signals. The brightness of the glowing display device is reduced; the problem that the brightness of conventional display devices is relatively high in white picture is solved; meanwhile, the power consumption of the glowing display device is reduced under the condition that the picture quality is not influenced.
Description
Technical field
The present invention relates to display technology field is and in particular to a kind of organic light emitting array substrate and its driving method and aobvious
Showing device.
Background technology
In organic light emitting display field, especially in the portable small-sized terminal presentation facility such as intelligent watch, data-driven
Device gamma (gamma) module closing in the state of, can only export two kinds of data voltages of vci and avdd (for example, vci=3.3v,
Avdd=5.5v), when wherein data voltage is 3.3v, display device presents white picture, when data voltage is 5.5v, display
Equipment presents black picture, and in real life application, oganic light-emitting display device working condition switches to white picture
Shi Liangdu is still of a relatively high, can affect picture visual effect and increase the overall power of display screen.
Content of the invention
It is bright during white picture that the technical problem to be solved is that oganic light-emitting display device working condition switches to
Spend still of a relatively high problem.
For this purpose it is proposed, the present invention proposes following technical scheme:
A kind of organic light emitting array substrate, comprising:
Data driver, described data driver is used for producing data signal；
Booster circuit module, described booster circuit module is electrically connected with described data driver, described booster circuit mould
Block is used for described data signal is carried out boosting process, and wherein said booster circuit module includes boost signal line and isolation is single
Unit, described isolated location makes the described data signal of described data driver output be sent to described pixel cell, and isolate from
Described pixel cell is located at described isolated location and described display to described data driver return path signal, described boost signal line
Between module, and it is located above or below described data wire and intersects with described data wire；And
Display module, it includes some pixel cells, and described pixel cell passes through data wire with described booster circuit module
It is electrically connected with, the data signal after boosting is processed is input to described pixel cell.
Preferably, also include: scanner driver, described scanner driver includes some scan lines, by described scan line
Input scanning signal to described pixel cell.
Preferably, described boost signal line and described data wire intersect vertically.
Preferably, by the described boost signal line of adjustment or described data wire, and/or described boost signal line and described number
According to the spacing between line, and/or between described plain conductor and described data wire, insulating dielectric materials carry out boost data signal.
Preferably, by the live width of the described boost signal line of adjustment, described data wire or described scan line and/or described
Spacing between spacing between boost signal line and described data wire, and/or described data wire and described scan line, and/or
Between described boost signal line and described data wire between insulating dielectric materials, and/or described data wire and described scan line absolutely
Edge dielectric material carrys out boost data signal.
Preferably, described isolated location is demultiplexer, and the data signal for sending described data driver demultiplexes
With for multichannel data signal.
Preferably, also include: emission control driver, for being exported to described pixel cell by emissioning controling signal line
Emissioning controling signal.
A kind of organic light-emitting display device, including described organic light emitting array substrate.
A kind of driving method of described organic light emitting array substrate, methods described includes:
Data driver outputting data signals；
Described data signal is input to booster circuit module, and booster circuit module is carried out at boosting to described data signal
Reason；
The pixel cell in display module for the signal input after boosting process.
Preferably, the high level lasting time of described booster circuit module is more than or equal to the gating level of scan signal
Persistent period.
By using technical scheme disclosed in this invention, data data driver being exported using booster circuit module
Signal carries out boosting and processes so that the data voltage being input to display module raises, thus reducing the bright of luminous display unit
Degree, and solve the problems, such as that the brightness under white picture of current display device is of a relatively high, do not affecting picture quality simultaneously
In the case of reduce the power consumption of luminous display unit.
Brief description
The features and advantages of the present invention can be more clearly understood from by reference to accompanying drawing, accompanying drawing is schematic and should not manage
Solution is to carry out any restriction to the present invention, in the accompanying drawings:
Fig. 1 shows the schematic diagram of organic light emitting array substrate according to a first embodiment of the present invention；
Fig. 2 shows the schematic diagram of organic light emitting array substrate according to a second embodiment of the present invention；
Fig. 3 shows the equivalent circuit diagram of the organic light emitting array substrate shown in Fig. 2；
Fig. 4 shows the schematic diagram of organic light emitting array substrate according to a third embodiment of the present invention；
Fig. 5 shows the drive signal sequential chart of the organic light emitting array substrate shown in Fig. 4；
Fig. 6 shows the schematic diagram of organic light emitting array substrate according to a fourth embodiment of the present invention.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the example to the present invention for the accompanying drawing
Property embodiment is described in further detail.
Certain exemplary embodiments according to the present invention are described referring to the drawings.Here, when the first element is described as
When " electrical connection " is to the second element, the first element can be directly connected to the second element, or through one or more add ons
It is indirectly connected to the second element.Further, for the sake of clarity, concisely eliminating is not for fully understanding the present invention
Necessary some elements.Additionally, identical reference refers to identical element all the time.
Hereinafter, with reference to the accompanying drawings to describing the exemplary embodiment of the present invention in detail.
Fig. 1 is the schematic diagram of organic light emitting array substrate according to a first embodiment of the present invention.As shown in figure 1, organic
Optical arrays substrate includes display module 100, data driver 130 and booster circuit module 140, and wherein display module 100 has
Multiple pixel cells 110, data driver 130 is used for by data wire dm(m=1,2,3 ...) exports to pixel cell 110
Data signal, booster circuit module 140 is located between display module 100 and data driver 130, for carrying out to data signal
Boosting is processed.Above-mentioned organic light emitting array substrate also includes scanner driver 120, and it is used for by scan line sn(n=1,2,
3 ...) export scanning signal to pixel cell 110.
Specifically, multiple pixel cells 110 are arranged in display module 100, and each pixel cell 110 passes through data wire
dmElectrically connect with data driver 130, pass through horizontal scanning line snElectrically connect with scanner driver 120.According to embodiments of the present invention
Pixel cell 110 can be current known structure, such as any one or more in the pixel architectural elements such as 6t1c, 7t1c, 6t2c.
Scanner driver 120 produces and the outside scan control signal phase providing (for example, providing) from timing control unit
The scan control signal answered, and produced scan control signal is passed through horizontal scanning line s1、s2、……、sn-1And snIt is supplied to
Pixel cell 110.
Data driver 130 is produced and is controlled with the outside data data providing (for example, providing from timing control unit)
The corresponding data signal of signal, and after boosted for produced data signal circuit module 140 is boosted, by data wire d1、
d2、……、dm-1And dmIt is provided synchronously to pixel cell 110 with scanning signal.For example, data driver 130 output data electricity
Pressure signal v1=3.3v, i.e. vci magnitude of voltage, boosts so that being input to the number of display module 100 through booster circuit module 140
It is increased to 4.0 to 5.0v according to voltage, thus can reduce the brightness of light-emitting display device, and solve under display device white picture
The of a relatively high problem of brightness, reduces light-emitting display device power consumption in the case of not affecting picture quality simultaneously.
Fig. 2 is the schematic diagram of organic light emitting array substrate according to a second embodiment of the present invention, with organic shown in Fig. 1
The difference of optical arrays substrate is, booster circuit module 140 includes boost signal line 150 and isolated location 160, wherein every
From unit 160 make data driver 130 export data signal be sent to pixel cell 110, and isolate from pixel cell 110 to
Data driver 130 return path signal, that is, realize data driver 130 to the one-way transmission of pixel cell 110, boost signal line
150 are located between isolated location 160 and display module 100, and are located at data wire dmAbove or below and with data wire dmIntersecting.
Specifically, boost signal line 150 may be located at data wire dmTop it is also possible to be located at data wire dmLower section.
In fig. 2, boost signal line 150 and data wire dmIntersect vertically, but the present invention is not limited to this, as long as boosting
Holding wire 150 and data wire dmBetween there is intersection can form coupled capacitor device.Due to boost signal line 150 sum
According to line dmIt is respectively provided with certain live width, therefore boost signal line 150 data line dmBetween can form electric capacity, such as boost signal line
150 and data wire d1Between formed electric capacity c1, with data wire d2Between formed electric capacity c2, with data wire dmBetween formed electric capacity cm；
Data wire d simultaneouslymAlso extend through scan line sn, due to data wire dmWith scan line snIt is respectively provided with certain live width, therefore data wire dm
With scan line snBetween also can form electric capacity ca.The electric capacity c being formedmAnd caIt is all adjustable, for example, can adjust boosting letter
Number line 150, data wire dmOr scan line snLive width, and/or boost signal line 150 and data wire dmBetween spacing, and/or
Data wire dmWith scan line snBetween spacing being adjusted it might even be possible to by adjusting boost signal line 150 and data wire dm
Or data wire dmWith scan line snBetween insulating dielectric materials being adjusted.
The operation principle of organic light emitting array substrate according to a second embodiment of the present invention is described more fully below.Fig. 3 shows
Go out the equivalent circuit diagram of the organic light emitting array substrate shown in Fig. 2, as shown in figure 3, the data letter that data driver 130 sends
Number by isolated location 160 through data wire dmIt is sent to pixel cell 110, data wire dmWith the boosting above or below it
Form electric capacity c between holding wire 150m, and with above or below scan line snBetween formed electric capacity ca.Now pixel cell 110
It is not gated on it is assumed that the voltage of data driver 130 output is v1, then now the voltage at this equivalent circuit a point due to data
Signal is to electric capacity cmWith electric capacity caCharging effect, voltage is promoted to v1；When boost signal line 150 is transfused to boost signal,
This boost signal has the magnitude of voltage v of a relative high potential3, this boost signal also can be to capacitor c simultaneouslymAnd caFilled
Electricity, because isolated location 160 isolation a point is to data driver 130 return path signal, so that data wire dmA point on electricity
Pressure value lifts △ v, wherein △ v=v3·cm/(cm+ca), that is, the magnitude of voltage at a point is v1+ △ v, it is achieved thereby that the mesh of boosting
's.
When pixel cell 110 is scanned driver 120 output lead scanning signal gating, the data signal after boosting
v1+ △ v is written in the storage of pixel cell 110.In order to obtain the data signal after desired boosting, Ke Yitong
Cross adjustment boost signal line 150, data wire dmOr scan line snLive width, and/or boost signal line 150 and data wire dmBetween
Spacing, and/or data wire dmWith scan line snBetween spacing it might even be possible to by adjusting boost signal line 150 and data wire
dmOr data wire dmWith scan line snBetween insulating dielectric materials adjusting capacitor cmAnd caCapacitance, and then realize to boosting
The adjustment of data signal afterwards.For example, for a intelligent watch terminal presentation facility, can be made by design adjustment
caFor 4.0pf about and cmFor 0.5pf, as data driver 130 output data voltage signal v1=3.3v, i.e. vci magnitude of voltage
When, boost signal line 150 makes the data voltage being input to display module 100 be increased to 4.0 to 5.0v, thus reduces luminous aobvious
The brightness of showing device, and solve the problems, such as that under display device white picture, brightness is of a relatively high, do not affecting picture quality simultaneously
In the case of reduce light-emitting display device power consumption.
Isolated location 160 can realize the unidirectional biography to pixel cell 110 for the data driver 130 with simple diode
Defeated, preferably isolating unit 160 can be demultiplexer 170, as shown in figure 4, Fig. 4 shows according to a third embodiment of the present invention
Organic light emitting array substrate schematic diagram, demultiplexer 170 be located between display module 100 and data driver 130, not only
Data driver 130 can be realized to the one-way transmission of pixel cell 110, the data that data driver 130 can also be sent
Signal is demultiplexing as multichannel data signal.It can be clearly seen that demultiplexer 170 is defeated by data driver 130 from Fig. 4
It is transferred to data wire d after the data signal demultiplexing going out terminal transmission1、d2、……、dm-1And dm, specifically, a data is driven
The lead-out terminal of dynamic device 130 is coupled to three data line, a lead-out terminal of data driver 130 by demultiplexer 170
Sequentially export redgreenblue data signal, this lead-out terminal is sent by demultiplexer 170 by demultiplexer control signal
Data signal carry out demultiplexing process, transmit the trichroism data signal of red, green, blue respectively to three data line, thus can lead to
Cross demultiplexer 170 to reduce the quantity of data driver 130 lead-out terminal.It will be appreciated by those skilled in the art that demultiplexing
Device 170 can be any structure in currently known demultiplexer 170 (de-mux) structure, and 3 select 3 demultiplexer 170 spy
Different structure is also feasible.
Fig. 5 shows the drive signal sequential chart of the organic light emitting array substrate shown in Fig. 4, and it includes following two ranks
Section:
Data signal exports stage t1: data driver 130 outputting data signals ic-out, such as outputting data signals voltage
V1=3.3v, v2=5.5v, export signal de-mux1, the de-mux2 after three road demultiplexings after demultiplexed device 170 demultiplexing
And de-mux3, demultiplexer 170 is the element of one-out-three formula here, and the conducting of its transistor low level, solution in time period
Multiplexer 170 transistor turns normal work, is that data signal boosting prepares or referred to as data voltage pre-charge operation.So
And, the demultiplexer 170 of the present invention can be other structures known in the field, and its transistor can also be high level conducting
The transistor of type.
Data signal write phase t2: boost signal line 150 is transfused to the magnitude of voltage v with relative high potential3Boosting
Signal vboost is so that data voltage signal is elevated △ v, wherein △ v=v3·cm/(cm+ca), the low electricity of scanning signal scan
One pixel cell 110 of flat gating is so that data signal v after boosting1+ △ v is written to the storage of respective pixel unit 110
In capacitor.It is noted herein that, the high level lasting time of boost signal vboost should be more than or equal to scanning letter
The gating level duration of number scan, so that the data signal being write is the data signal after boosting.
Fig. 6 shows the schematic diagram of organic light emitting array substrate according to a fourth embodiment of the present invention, with having shown in Fig. 4
The difference of machine light emitting array substrate is, also includes emission control driver 180, for by emissioning controling signal line en
(n=1,2,3 ...) is electrically connected with pixel cell 110, exports emissioning controling signal to pixel cell 110.Emission control drives
Device 180 produces and the outside emissioning controling signal providing (for example, providing) from timing control unit, this emissioning controling signal order
Be applied to LED control signal line line e1To enOn, thus control the launch time of pixel cell 110.
Invention further provides a kind of organic light-emitting display device, it includes array base palte as above, and this shows
Showing device can have for mobile phone, panel computer, television set, display, notebook computer, DPF, navigator etc. are any
The product of display function or part.
By using technical scheme disclosed in this invention, being exported to data driver 130 using booster circuit module 140
Data signal carry out boost process so that be input to display module 100 data voltage raise, thus reducing luminescence display
The brightness of device, and solve the problems, such as that the brightness under white picture of current display device is of a relatively high, do not affecting picture simultaneously
The power consumption of luminous display unit is reduced in the case of the quality of face.
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can be without departing from this
In the case of bright spirit and scope, various modification can be adapted and modification, and such modification and modification each fall within by claims
Within limited range.
Claims (10)
1. a kind of organic light emitting array substrate is it is characterised in that include:
Data driver, described data driver is used for producing data signal；
Booster circuit module, described booster circuit module is electrically connected with described data driver, and described booster circuit module is used
In described data signal is carried out with boosting process, wherein said booster circuit module includes boost signal line and isolated location, institute
Stating isolated location makes the described data signal of described data driver output be sent to described pixel cell, and isolates from described picture
Plain unit to described data driver return path signal, described boost signal line be located at described isolated location and described display module it
Between, and be located above or below described data wire and intersect with described data wire；And
Display module, it includes some pixel cells, and it is electrical that described pixel cell and described booster circuit module pass through data wire
Connect, the data signal after boosting is processed is input to described pixel cell.
2. organic light emitting array substrate according to claim 1 is it is characterised in that also include: scanner driver, described sweeps
Retouch driver and include some scan lines, scanning signal is inputted to described pixel cell by described scan line.
3. organic light emitting array substrate according to claim 1 is it is characterised in that described boost signal line and described data
Line intersects vertically.
4. organic light emitting array substrate according to claim 1 it is characterised in that by adjust described boost signal line or
Spacing between the live width of described data wire, and/or described boost signal line and described data wire, and/or described boost signal
Between line and described data wire, insulating dielectric materials carry out boost data signal.
5. organic light emitting array substrate according to claim 2 it is characterised in that by adjust described boost signal line,
Spacing between described data wire or the live width of described scan line, and/or described boost signal line and described data wire, and/or
Dielectric between spacing between described data wire and described scan line, and/or described boost signal line and described data wire
Between material, and/or described data wire and described scan line, insulating dielectric materials carry out boost data signal.
6. organic light emitting array substrate according to claim 1 is it is characterised in that described isolated location is demultiplexer,
Data signal for sending described data driver is demultiplexing as multichannel data signal.
7. the organic light emitting array substrate according to any one of claim 1-6 is it is characterised in that also include: transmitting control
Driver processed, for exporting emissioning controling signal by emissioning controling signal line to described pixel cell.
8. a kind of organic light-emitting display device is it is characterised in that include the organic light emission battle array any one of claim 1-7
Row substrate.
9. a kind of driving method of the organic light emitting array substrate any one of claim 1-7 is it is characterised in that described
Method includes:
Data driver outputting data signals；
Described data signal is input to booster circuit module, and booster circuit module carries out boosting process to described data signal；
The pixel cell in display module for the signal input after boosting process.
10. the driving method of organic light emitting array substrate according to claim 9 is it is characterised in that described booster circuit
The high level lasting time of module is more than or equal to the gating level duration of scan signal.
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| CN104992681B (en) * | 2015-07-03 | 2018-03-02 | 武汉华星光电技术有限公司 | Display panel and the image element circuit for display panel |
| CN105527738B (en) * | 2016-02-17 | 2018-12-25 | 京东方科技集团股份有限公司 | Array substrate, data drive circuit, data-driven method and display device |
| WO2019044546A1 (en) * | 2017-08-29 | 2019-03-07 | シャープ株式会社 | Active matrix substrate and display device |
| CN109427282B (en) * | 2017-09-01 | 2021-11-02 | 群创光电股份有限公司 | Display device |
| CN108877671B (en) | 2018-07-24 | 2020-08-25 | 京东方科技集团股份有限公司 | Pixel circuit, driving method thereof and display device |
| US10984747B2 (en) * | 2019-07-29 | 2021-04-20 | Sharp Kabushiki Kaisha | Active matrix substrate, display device, and drive method therefor |
| CN111951727B (en) | 2020-08-25 | 2022-10-18 | 昆山国显光电有限公司 | Display panel and display device |
| CN113035112B (en) * | 2021-03-25 | 2022-05-17 | 昆山国显光电有限公司 | Driving method of display panel, driving chip and display device |
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| KR101563208B1 (en) * | 2009-02-04 | 2015-10-28 | 삼성디스플레이 주식회사 | Apparatus for driving a light source and light source apparatus having the same |
| KR101329964B1 (en) * | 2009-12-31 | 2013-11-13 | 엘지디스플레이 주식회사 | Organic light emitting diode display device |
| CN102385834A (en) * | 2010-09-01 | 2012-03-21 | 华凌光电(常熟)有限公司 | Structure for adjusting organic light-emitting diode display with standing current and driving method thereof |
| JP5921442B2 (en) * | 2010-12-01 | 2016-05-24 | 株式会社オプトエレクトロニクス | Information display device and display driving method |
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