CN100452158C - Driving controlling device and method for display array - Google Patents
Driving controlling device and method for display array Download PDFInfo
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- CN100452158C CN100452158C CNB2006101317936A CN200610131793A CN100452158C CN 100452158 C CN100452158 C CN 100452158C CN B2006101317936 A CNB2006101317936 A CN B2006101317936A CN 200610131793 A CN200610131793 A CN 200610131793A CN 100452158 C CN100452158 C CN 100452158C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The invention discloses a driving control device and method for display array. It has plural pixel area. And the driving control device includes a system control circuit and a driving circuit. The system control circuit would detect a starting state and determining starting time after detecting the starting state. The driving circuit controls the starting of the display array. The driving circuit contains plural scan line and plural data line. During the stating time, the scan line controls the starting of pixel area, and the data line supplies a certain voltage value to make the brightness reach to a preset value. The driving control method also contains the steps of executing the driving control device.
Description
Technical field
The present invention is about a kind of driving control device and drive controlling method that is used for an array of display; In more detail, about a kind of clock signal that utilizes, when starting, produce the driving control device and the drive controlling method of bright picture of moment to avoid array of display.
Background technology
Because organic light emitting display (Organic Light Emitting Display is called for short OLED) has advantages such as self-luminosity, high luminous efficiency, high contrast, super wide viewing angle, increasing research concentrates on this field.Organic light emitting display can be divided into active organic luminuous display (ActiveMatrix Organic Light Emitting Display again, be called for short AMOLED) and passive type organic light emitting display (Passive Matrix Organic Light Emitting Display is called for short PMOLED).
Fig. 1 represents a pixel region 1 of an active organic luminuous display, comprises a first transistor 11, a transistor seconds 12, an organic illuminating element 13 and a memory capacitance 14.The first transistor 11 is coupled to an one scan line 111 and a data line 112.The conducting of sweep trace 111 control the first transistors 11 makes that the magnitude of voltage of data line 112 can transfer to transistor seconds 12 when the first transistor 11 conductings.And transistor seconds 12 is by different point-to-point transmission voltage V
GSProduce different current values to drive organic illuminating element 13, different current values causes the different gray-scale values of organic illuminating element 13.Organic light emitting display is many with P transistor npn npn drive thin film transistors 12, and in this case, lower gate terminal magnitude of voltage can produce higher current value.Otherwise higher gate terminal magnitude of voltage can produce lower current value.
The luminous power that organic light emitting display is required is provided by an external power source system.The V of all pixel regions
DdEnd points is connected to this external power source system after parallel connection.In like manner, the V of all pixel regions
SsEnd points is also in parallel earlier, is connected to this external power source system again.In order to reduce the consumption of power supply, when organic active display is ready, can turn-off V
DdWith V
SsWhen organic active display restarts, send into external power source V more again
DdWith V
SsThere is a great problem in this design, that is, and and when organic active display restarts, sends into again external power source V
DdWith V
SsThe time, organic light emitting display can produce of short duration bright picture, causes the visual discomfort of user.Hereat, how to make organic light-emitting display device have more stable display quality, especially produce bright picture of moment, still be worth industry to make great efforts research in restarting Shi Buhui.
Summary of the invention
A fundamental purpose of the present invention is the bright picture of moment that produced when solving present display device restarts.For reaching this purpose, the invention provides a kind of driving control device, be used for an array of display, this array of display has a plurality of pixel regions that are arranged.This driving control device comprises a system, control circuit and one drive circuit.This system, control circuit detects a starting state, and after detecting this starting state, determines an enabling time.This driving circuit is electrically connected with these a plurality of pixel regions, and to control the startup of this array of display, it has a plurality of sweep traces and a plurality of data line.Respectively these a plurality of sweep traces are controlled at least partly startup of pixel region of this array of display in this enabling time.Respectively these a plurality of data lines are in this enabling time, provide a magnitude of voltage at least partly pixel region of this startup; Make this at least partly brightness corresponding one default brightness of pixel region, wherein, when starting, temporarily do not provide the external power source of pixel region, external power source is provided in start-up time later.
Another object of the present invention is to provide a kind of drive controlling method of carrying out aforementioned means, it comprises the following step: a starting state that detects this array of display; Determine an enabling time of this array of display; In this enabling time, start at least partly pixel region; And in this enabling time, respectively this at least partly this pixel region one magnitude of voltage that has started is provided, makes this at least partly brightness corresponding one default brightness of pixel region, wherein, the external power source of pixel region temporarily is not provided when starting, external power source is provided in start-up time later.
Behind the embodiment of consulting accompanying drawing and describing subsequently, this technical field has knows that usually the knowledgeable just can understand other purposes of the present invention, and technological means of the present invention and embodiment.
Description of drawings
Fig. 1 is the electrode connecting structure of a pixel region of expression one active organic luminuous display;
Fig. 2 is the synoptic diagram of expression driving control device of the present invention;
Fig. 3 is the electrode connecting structure of expression pixel region of the present invention;
Fig. 4 is each portion of element clock signal illustrative view of expression the present invention; And
Fig. 5 represents the conceptual flow chart of driving control device of the present invention.
The main element symbol description
1: pixel region
11: the first transistor 12: transistor seconds
13: organic illuminating element 14: memory capacitance
111: sweep trace 112: data line
21: array of display 22: system, control circuit
24: scan drive circuit 25: data drive circuit
211: pixel region 212: pixel region
213: pixel region 214: pixel region
215: pixel region 216: pixel region
217: pixel region 218: pixel region
219: pixel region 220: pixel region
221: pixel region 222: pixel region
223: pixel region 224: pixel region
225: pixel region 226: pixel region
227: pixel region 228: pixel region
229: pixel region 230: pixel region
241: sweep trace 242: sweep trace
243: sweep trace 244: sweep trace
251: data line 252: data line
253: data line 254: data line
255: data line
31: the first transistor 32: transistor seconds
33: light-emitting component 34: memory capacitance
Embodiment
Following first schematic illustration causes the origin cause of formation of bright picture of the generation moment of start again, to help the understanding of core technology of the present invention.
Array of display comprises a plurality of sweep traces, is arranged in a plurality of pixel regions of matrix with control, that is each bar sweep trace is controlled each pixel region that becomes row.Array of display is in arbitrary time (utmost point blink that imagination is cut apart), a sweep trace effect is only arranged, that is only have a sweep trace can make the first transistor conducting of its this row pixel region of controlling, but make the gate terminal of corresponding data line input voltage to transistor seconds.Remaining sweep trace all is in the state that does not act on, that is its corresponding gate terminal be in the state of suspension joint.When display device when armed state restarts, external power source V
DdWith V
SsCan re-enter.When connecting external power source V
SsThe time, the gate terminal magnitude of voltage of transistor seconds can be subjected to memory capacitance C
StInfluence.Because V
SsBe negative supply, thus the gate terminal of transistor seconds also with drop to negative supply.At this hypothesis transistor seconds is the P transistor npn npn, as most products now.For transistor seconds, V
GSMoment becomes quite low, and then feasible electric current I by transistor seconds
dBecome big, cause the bright picture of moment.Hereat, the principle of the present invention gate terminal magnitude of voltage that is to reduce transistor seconds is subjected to the influence degree of outside negative supply.
Fig. 2 is the array of display 21 of driving control device of the present invention.At first describe each detailed structure partly, describe each function partly again.Array of display 21 has 20 pixel regions 211～230 that are arranged.This driving control device comprises a system, control circuit 22, scan driving circuit 24 and a data drive circuit 25.Scan drive circuit 24 and data drive circuit 25 are electrically connected with a plurality of pixel regions 211～230, to control the startup of this array of display 21.Scan drive circuit 24 has a plurality of sweep traces 241,242,243 and 244, and data drive circuit 25 has a plurality of data lines 251,252,253,254 and 255.
Fig. 3 is the concrete structure in remarked pixel zone 211, and it has a first transistor 31, a transistor seconds 32, a light-emitting component 33 and a memory capacitance 34.In the present embodiment, the first transistor 31 is the N transistor npn npn, and transistor seconds 32 is the P transistor npn npn.The first transistor 31 has a control end, one first end points and one second end points, is respectively grid, drain electrode and the source electrode of the first transistor 31.The control end of the first transistor 31 is coupled to the sweep trace 241 of scan drive circuit 24.First end points of the first transistor 31 is coupled to the data line 251 of data drive circuit 25.Wherein, the startup of sweep trace 241 decision the first transistors 31, data line 251 starts down in the first transistor 31, adjusts the brightness of pixel region 211.Transistor seconds 32 has grid, source electrode, and the drain electrode that a control end, one first end points and one second end points are respectively transistor seconds 32.Wherein, the control end of transistor seconds 32 is coupled to second end points of the first transistor 31, and first end points of transistor seconds 32 is coupled to one first power end V
DdLight-emitting component 33 has one first end points and one second end points.First end points of light-emitting component 33 is coupled to second end points of transistor seconds 32, that is drain electrode, and second end points of light-emitting component 43 is coupled to a second source end V
SsMemory capacitance 34 has i.e. one second end points of one first end points, and wherein first end points is coupled to the grid of transistor seconds 32, and second end points is coupled to any fixed voltage.In present embodiment, second end points of memory capacitance 34 is coupled to V
Ss, but in other embodiment, second end points also can select to be connected to V
Dd Other pixel regions 212～230 also all comprise a first transistor, a transistor seconds, a light-emitting component and a memory capacitance, also be coupled to simultaneously the wherein one scan line of scan drive circuit 24 and a wherein data line of data drive circuit 25, its concrete coupling mode and pixel region 211 are similar, so do not give unnecessary details.
Each function and execution time partly then is described.Please consult Fig. 4 simultaneously, it is each portion of element clock signal figure of expression present embodiment.Among Fig. 4, signal C representative system control circuit 22 clock signals, D representative data line 251,252,253,254 and 255 clock signals, S
1To S
4Represent sweep trace 241 to 244 clock signals respectively.
In detail, the array of display 21 of present embodiment is when armed state restarts, and system, control circuit 22 can detect a starting state.At this moment, different with prior art, present embodiment does not temporarily provide the external power source V of pixel region
SsAnd V
DdThen, system, control circuit 22 is promoted to positive voltage with being about to clock signal by negative voltage, as locating of Fig. 4 arrow 41 indications, and determines an enabling time 42, for example 0.5 second.Arrow 43 indications locate then to finish for enabling time the time.In enabling time 42, system, control circuit 22 values of being all are at high-tension state.To emphasize that at this in present embodiment, 0.5 second of length enabling time was not to be used for limiting the scope of the invention, can determine different enabling times according to the characteristic of different display device.
When system, control circuit 22 pull-up clock signals, that is during arrow 41 indication places, the signal S of all sweep traces
1, S
2, S
3And S
4All turn negative number to positive number, and in 0.5 second enabling time, kept positive voltage.Sweep trace S
1To S
4In this enabling time, control the startup of all pixel regions of this array of display 21.For example, sweep trace S
1The startup of control pixel region 251 to 255.So, make the first transistor of corresponding pixel region be in the state of conducting.With sweep trace 241 is example, its clock signal such as S
1Shown in, the first transistor of sweep trace 241 pairing pixel regions 211～215 responds S in enabling time
1High voltage and conducting.And for example with sweep trace 242, its clock signal such as S
2Shown in, the first transistor of sweep trace 242 pairing pixel regions 216～220 responds S in enabling time
2High voltage and conducting.
In enabling time, data line 251,252,253,254 and 255 clock signals also transfer ceiling voltage to by negative, shown in the signal D of Fig. 4.Because the first transistor conducting, the value of D can reach transistor seconds.Pixel region 211 with Fig. 3 is an example, and the ceiling voltage of signal D makes the gate terminal of transistor seconds be in high-tension state, hereat, works as V
SsMoment is when connecting negative voltage, C
StThe degree that two terminal potentials are affected significantly reduces, and makes the magnitude of current that transistor seconds 32 is unlikely to produce is enough to lighting elements 33.In after enabling time, array of display side provides external power source V
SsAnd V
DdIn the present embodiment, because the value of D is a ceiling voltage, the brightness of the light-emitting component that it caused is minimum brightness.Be noted that the demand of visual product at this, in enabling time, the magnitude of voltage of D be made as other non-maximum voltage values, make pixel region present other brightness.
In the present embodiment,, that is make all the first transistors all be in the state of conducting because all sweep traces are all kept high-voltage state in enabling time.All transistor secondses are delivered in the then conducting of response the first transistor in enabling time of the signal of D.So, the grid of the transistor seconds of each pixel region of array of display 21 all is in high-tension state, but not the state of suspension joint.Hereat, work as V
SsMoment is when connecting, C
StTwo terminal potentials are by V
SsThe negative voltage effect significantly reduce, make the magnitude of current that transistor seconds is unlikely to produce is enough to light all light-emitting components.
In the present embodiment, all sweep traces are controlled the startup of its pairing pixel region in this enabling time, so all pixel regions are all under control.In addition, all data lines provide all pixel regions to maximum voltage value in this enabling time, make the brightness of whole pixel regions correspond to minimum brightness.Yet, be stressed that, be not that all pixel regions all need to be controlled in enabling time.For example, if the user wishes array of display after armed state restarts, first zone of array of display presents black picture and second zone presents bright picture, then only need use the present invention first zone in array of display.
Moreover above-mentioned the first transistor can be N transistor npn npn or P transistor npn npn.Yet when the first transistor replaced with the P transistor npn npn, the voltage of sweep trace is required to be negative voltage just can make the first transistor be in the state of conducting.In addition, transistor seconds can be N transistor npn npn or P transistor npn npn.Yet when the first transistor replaced with the N transistor npn npn, the voltage of data line was required to be negative voltage.
Fig. 5 represents that the present invention is used to control the drive controlling method of an array of display.This array of display has a plurality of pixel regions that are arranged.At first, execution in step 51 detects a starting state of this array of display.Then, execution in step 52 determines enabling time of this array of display.Then, execution in step 53 in this enabling time, starts at least partly this pixel region.At last, execution in step 54 in this enabling time, provides respectively this at least partly this pixel region one magnitude of voltage that has started, makes this at least partly brightness corresponding one default brightness of pixel region.
In sum, the present invention utilizes a kind of driving sequential of setting, makes bright picture phenomenon of the moment that is produced when negative supply just connects array of display, is effectively slowed down.Except the discomfort that can avoid the user,, also can make the picture of array of display present different effects by different arrangements.
The foregoing description only is illustrative principle of the present invention and effect thereof, but not is used to limit the present invention.Any those skilled in the art all can be under the situation of know-why of the present invention and spirit, and the foregoing description is made amendment and changed.Therefore the claim scope is listed as described later for the scope of the present invention.
Claims (11)
1. a driving control device is used for an array of display, and this array of display has a plurality of pixel regions that are arranged; This driving control device comprises:
One system, control circuit detects a starting state, and after detecting this starting state, determines an enabling time; And
One drive circuit is electrically connected with these a plurality of pixel regions, and to control the startup of this array of display, it has:
A plurality of sweep traces, respectively these a plurality of sweep traces are controlled at least partly startup of pixel region of this array of display in this enabling time; And
A plurality of data lines, respectively these a plurality of data lines provide a magnitude of voltage at least partly pixel region of this startup in this enabling time; Make this at least partly brightness corresponding one default brightness of pixel region,
Wherein, when starting, temporarily do not provide the external power source of pixel region, external power source is provided in start-up time later.
2. driving control device as claimed in claim 1 should default brightness be this at least partly minimum brightness of pixel region wherein.
3. driving control device as claimed in claim 1, wherein this driving circuit also comprises:
Scan driving circuit has this a plurality of sweep traces; And
One data drive circuit has this a plurality of data lines.
4. driving control device as claimed in claim 3, wherein these a plurality of pixel regions at least one of them, have:
One the first transistor, have a control end, one first end points and one second end points, this control end of this first transistor is coupled to wherein this sweep trace of this scan drive circuit, and this first end points of this first transistor is coupled to wherein this data line of this data drive circuit; Wherein, this sweep trace determines the startup of this first transistor, and this data line is adjusted the brightness of this pixel region under this first transistor starts;
One transistor seconds has a control end, one first end points and one second end points, and wherein this control end of this transistor seconds is coupled to second end points of this first transistor, and this of this transistor seconds first end points is coupled to one first power end; And
One light-emitting component has one first end points and one second end points, and wherein this of this light-emitting component first end points is coupled to this second end points of this transistor seconds, and this second end points of this light-emitting component is coupled to a second source end.
5. driving control device as claimed in claim 4, wherein this transistor seconds is a P transistor npn npn.
6. driving control device as claimed in claim 4, wherein this transistor seconds is a N transistor npn npn.
7. driving control device as claimed in claim 4, wherein this first transistor is a P transistor npn npn.
8. driving control device as claimed in claim 4, wherein this first transistor is a N transistor npn npn.
9. driving control device as claimed in claim 1, wherein this enabling time is 0.5 second.
10. a drive controlling method is controlled the driving control device that is used for an array of display, and this array of display has a plurality of pixel regions that are arranged, and this method comprises the following step:
Detect a starting state of this array of display;
Determine an enabling time of this array of display;
In this enabling time, start at least partly this pixel region; And
In this enabling time, respectively this at least partly this pixel region one magnitude of voltage that has started is provided, make this at least partly brightness corresponding one default brightness of pixel region,
Wherein, when starting, temporarily do not provide the external power source of pixel region, external power source is provided in start-up time later.
11. drive controlling method as claimed in claim 10, wherein this enabling time is 0.5 second.
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|---|---|---|---|
| CNB2006101317936A CN100452158C (en) | 2006-10-12 | 2006-10-12 | Driving controlling device and method for display array |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101317936A CN100452158C (en) | 2006-10-12 | 2006-10-12 | Driving controlling device and method for display array |
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| CN1949341A CN1949341A (en) | 2007-04-18 |
| CN100452158C true CN100452158C (en) | 2009-01-14 |
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| KR101323493B1 (en) * | 2010-12-22 | 2013-10-31 | 엘지디스플레이 주식회사 | Organic light emitting diode display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553421A (en) * | 2003-05-29 | 2004-12-08 | 友达光电股份有限公司 | Active organic electroluminescence displaynig unit |
| JP2005107473A (en) * | 2003-09-12 | 2005-04-21 | Seiko Epson Corp | Method for driving electro-optical device, driving circuit therefor, and electro-optical device, and electronic equipment |
| US20060071888A1 (en) * | 2004-08-30 | 2006-04-06 | Lee Jae S | Light emitting display and driving method thereof |
| CN1773593A (en) * | 2004-11-08 | 2006-05-17 | 三星Sdi株式会社 | Organic light emitting display and driving method thereof |
-
2006
- 2006-10-12 CN CNB2006101317936A patent/CN100452158C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553421A (en) * | 2003-05-29 | 2004-12-08 | 友达光电股份有限公司 | Active organic electroluminescence displaynig unit |
| JP2005107473A (en) * | 2003-09-12 | 2005-04-21 | Seiko Epson Corp | Method for driving electro-optical device, driving circuit therefor, and electro-optical device, and electronic equipment |
| US20060071888A1 (en) * | 2004-08-30 | 2006-04-06 | Lee Jae S | Light emitting display and driving method thereof |
| CN1773593A (en) * | 2004-11-08 | 2006-05-17 | 三星Sdi株式会社 | Organic light emitting display and driving method thereof |
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