CN101136168B - System used for displaying image and organic light-emitting component driving method - Google Patents
System used for displaying image and organic light-emitting component driving method Download PDFInfo
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- CN101136168B CN101136168B CN2006101123555A CN200610112355A CN101136168B CN 101136168 B CN101136168 B CN 101136168B CN 2006101123555 A CN2006101123555 A CN 2006101123555A CN 200610112355 A CN200610112355 A CN 200610112355A CN 101136168 B CN101136168 B CN 101136168B
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Abstract
The system for displaying image comprises a plurality of pixel structures each of which comprises an organic illuminating element and a pixel drive circuit. The drive method for the organic illuminating element includes: control a data signal to be written from the data line into the storage capacitor in signal enabling period on the scanning line to set a first end voltage of the storage capacitor; control an other scanning line to set a second end voltage of the storage capacitor in signal enabling period on the scanning line; control the drive element to output a current into the organic illuminating element according to the potential difference of the first end and the second end of the capacitor to drive the organic illuminating element illuminating. Advantage: prolonged service life of organic illuminating element.
Description
Technical field
The present invention relates to the driving method of a kind of system and light-emitting component, particularly relate to a kind of system of show image and driving method of organic illuminating element of being used for.
Background technology
Organic light emitting display (Organic Light-Emitting Display, OLED) can divide into passive matrix type organic light-emitting display (Passive-Matrix OLED according to its type of drive, PM-OLED) with active-matrix formula organic light emitting display (Active-Matrix OLED, AM-OLED), yet the passive matrix type organic light-emitting display is subject to drive pattern, and have the life-span short with can't large tracts of landization etc. shortcoming, so active-matrix formula organic light emitting display can be applied to high-effect and large-sized demonstration purposes.
Active-matrix formula organic light emitting display comprises that mainly an organic illuminating element and pixel driving circuit electrically connect, pixel driving circuit and scan driving circuit and a data driving circuit electrically connect, pixel driving circuit is subjected to scan drive circuit control to receive the data that the data driving circuit writes, and uses the organic illuminating element display frame data that drives.
Fig. 1 and Fig. 2 are the equivalent circuit diagram of the pixel driving circuit of existing active-matrix formula organic light emitting display.As shown in Figure 1, pixel driving circuit 1 comprises a selector switch 11, a driving element 12 and a storage capacitors 13, and pixel driving circuit 1 drives an organic illuminating element 14.Selector switch 11 and driving element 12N type membrane transistor, the gate of selector switch 11 is electrically connected to one scan line (scan line, SL) to receive the scanning signal from scan drive circuit, its drain is electrically connected to a data line (data line, DL) to receive document signal from the data driving circuit, its source electrode is electrically connected to the gate of storage capacitors 13 and driving element 12; The two ends of storage capacitors 13 are electrically connected to the gate and the source electrode of driving element 12 respectively, the electric current of storage capacitors 13 control driving component 12 outputs; Organic illuminating element 14 is electrically connected between the drain of a power vd D and driving element 12, and the current drives organic illuminating element 14 of driving element 12 outputs is luminous.
The drain and the source electrode of scanning signal conducting selector switch 11 when activation make document signal be written into storage capacitors 13, and storage capacitors 13 records the electric current of the voltage of document signal with control driving component 12 outputs.Yet, under this driving framework, organic illuminating element 14 reverse geometries, the inverted configuration of itself and general organic illuminating element 14, thereby be not compatible with existing processing procedure, and the negative electrode of the organic illuminating element 14 of each pixel driving circuit 1 is not easy to be connected to each other, thereby the 1 fewer use of this pixel driving circuit.
As shown in Figure 2, pixel driving circuit 1 ' be with Fig. 1 difference: the two ends of storage capacitors 13 be electrically connected to respectively driving element 12 ' gate and drain, organic illuminating element 14 be electrically connected at a power supply VSS and driving element 12 ' source electrode between, power supply VSS can be an earth terminal.Yet under this driving framework, the load voltage that the electric current of driving element 12 ' generation can be subjected to organic illuminating element 14 influences, and drive current can reduce when load voltage increases.If still with the current drives of identical size, then the load voltage on the organic illuminating element 14 will rise after organic illuminating element 14 decay, thereby cause the electric current of driving element 12 ' generation to reduce, make the brightness of organic illuminating element 14 be affected.
In addition, for the electric current of control driving component 12 ' generation exactly, the voltage that the data driving circuit must improve document signal can enough reduce the influence of load voltage.Yet by expensive manufacture of semiconductor manufacturing, this will increase the cost of organic light emitting display to the data driving circuit of high pressure usually.Moreover, will cause quicken to shorten the serviceable life of organic illuminating element 14 with current driving mode.
Therefore, how to provide a kind of system that is used for show image that can address the above problem and the driving method of organic illuminating element, real one of the current important topic that belongs to.
Summary of the invention
The objective of the invention is to, overcome the defective of the pixel driving circuit existence of existing organic light emitting display, and a kind of new system that is used for show image and the driving method of organic illuminating element be provided, technical matters to be solved is to make its serviceable life that prolongs organic illuminating element, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of system that is used for show image according to the present invention proposes comprises a plurality of image element structures, and each image element structure comprises: an organic illuminating element; An and pixel driving circuit, drive this organic illuminating element, and electrically connect with one scan line and a data line, this pixel driving circuit has a driving element, one storage capacitors, one selector switch and a data switch, wherein this driving element is exported an electric current to this organic illuminating element, this storage capacitors has the two ends that one first end and one second end are electrically connected to this driving element respectively, in order to control this electric current that this driving element is exported, this selector switch is electrically connected to this sweep trace, this first end with this data line of conducting and this storage capacitors, this data switch is electrically connected to this sweep trace, in order to this second end of another sweep trace of conducting and this storage capacitors.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The aforesaid system that is used for show image, wherein said another sweep trace is a last sweep trace of this sweep trace.
The aforesaid system that is used for show image, wherein said another sweep trace is time sweep trace of this sweep trace.
The aforesaid system that is used for show image, wherein said selector switch and this data switch are an electric crystal, the gate of this selector switch is electrically connected to this sweep trace, its drain is electrically connected to this data line, its source electrode is electrically connected to this first end of this storage capacitors, the gate of this data switch is electrically connected to this sweep trace, and its drain is electrically connected to this second end of this storage capacitors, and its source electrode is electrically connected to this another sweep trace.
The aforesaid system that is used for show image, wherein said driving element one electric crystal, its gate are electrically connected to this first end of this storage capacitors, and its source electrode is electrically connected to this second end of this storage capacitors, and its drain is electrically connected to a power supply.
The aforesaid system that is used for show image, wherein said pixel driving circuit more comprises:
One power switch is electrically connected to this sweep trace, with conducting one power supply and this driving element.
The aforesaid system that is used for show image, wherein said power switch is an electric crystal, and its gate is electrically connected to this sweep trace, and its drain is electrically connected to this power supply, and its source electrode is electrically connected to this driving element.
The aforesaid system that is used for show image, wherein said driving element N type electric crystal, this power switch is a P type electric crystal.
The aforesaid system that is used for show image, wherein said scanning switch, this data switch and this driving element are N type electric crystals.
The aforesaid system that is used for show image, wherein said image element structure is arrayed.
The aforesaid system that is used for show image, it more comprises:
Scan driving circuit electrically connects with these sweep traces; And
One data driving circuit electrically connects with these data lines, and wherein these image element structures, this scan drive circuit and this data driving circuit constitute an organic luminous panel.
The aforesaid system that is used for show image, it more comprises:
One electronic installation has this organic luminous panel and an input block, and this input block and this organic luminous panel are coupled, and provides input to this organic luminous panel, so that this organic luminous panel show image.
The aforesaid system that is used for show image, wherein said electronic installation is mobile phone, digital digital camera, personal digital assistant, notebook computer, desktop computer, televisor, automobile-used display or Portable DVD player.
The object of the invention to solve the technical problems also realizes by the following technical solutions.The driving method of a kind of organic illuminating element that proposes according to the present invention, be used for a pixel driving circuit, this pixel driving circuit drives an organic illuminating element, and electrically connect with one scan line and a data line, this pixel driving circuit comprises a driving element and a storage capacitors, the driving method of organic illuminating element may further comprise the steps: during signal activation on this sweep trace, control a document signal and write this storage capacitors, with the voltage of one first end of setting this storage capacitors from this data line; During signal activation on this sweep trace, control the voltage that another sweep trace is set one second end of this storage capacitors; And according to this first end of this storage capacitors and the potential difference (PD) of this second end, control this driving element and export an electric current to this organic illuminating element, luminous to drive this organic illuminating element.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The driving method of aforesaid organic illuminating element, wherein during signal activation on this sweep trace, signal disabled on this another sweep trace.
The driving method of aforesaid organic illuminating element, wherein said another sweep trace are last sweep trace of this sweep trace.
The driving method of aforesaid organic illuminating element, wherein said another sweep trace are time sweep trace of this sweep trace.
The driving method of aforesaid organic illuminating element, it more may further comprise the steps:
During this sweep trace activation, isolate a power supply and this driving element; And
During this sweep trace disabled, this power supply of conducting and this driving element.
By technique scheme, the present invention is used for the system of show image and the driving method of organic illuminating element has following advantage at least:
A kind of system of show image and driving method of organic illuminating element of being used for of the present invention, first end of storage capacitors and the potential difference (PD) control driving component output current between second end, and first end of storage capacitors is connected to data line and receives document signal during the activation of scanning signal, its second end is connected to another sweep trace and receives another scanning signal, therefore, the load voltage of organic illuminating element can not influence the electric current of driving element output, and the terminal voltage that organic illuminating element is connected to driving element is controlled, thereby prolonged the serviceable life of organic illuminating element.
The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and the effect that has enhancement than prior art, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 and Fig. 2 are the equivalent circuit diagram of the pixel driving circuit of existing organic light emitting display.
Fig. 3 is the equivalent circuit diagram of a kind of pixel driving circuit of preferred embodiment of the present invention.
Fig. 4 is in the pixel driving circuit of preferred embodiment of the present invention, an oscillogram of the scanning signal on the sweep trace.
Fig. 5 is another equivalent circuit diagram according to a kind of pixel driving circuit of preferred embodiment of the present invention.
Fig. 6 is according to an a kind of synoptic diagram that is used for the system of show image of preferred embodiment of the present invention.
Fig. 7 is the process flow diagram according to the driving method of a kind of pixel driving circuit of preferred embodiment of the present invention.
1,1 ': pixel driving circuit 11: selector switch
12,12 ': driving element 13: storage capacitors
14: organic illuminating element 2: image element structure
20: pixel driving circuit 21: organic illuminating element
22: 221: the first ends of storage capacitors
24: selector switch 25: the data switch
26: power switch 3: the system that is used for show image
4: electronic installation 41: organic luminous panel
411: scan drive circuit 412: the data driving circuit
42: input block SL, SL ', SL1-SLi: sweep trace
DL, DL1-DLj: data line I: electric current
VDD: power supply VSS: power supply
S01-S03: the step of pixel driving circuit driving method
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, the system that is used for show image that foundation the present invention is proposed and its embodiment of driving method, structure, feature and the effect thereof of organic illuminating element, describe in detail as after.
Fig. 3 is the equivalent circuit diagram of a kind of pixel driving circuit of preferred embodiment of the present invention.As shown in Figure 3, a kind of system that is used for show image comprises a plurality of image element structures 2, each image element structure 2 comprises an organic illuminating element 21 and a pixel driving circuit 20, pixel driving circuit 20 drives organic illuminating element 21, and electrically connect with one scan line SL and a data line DL, it comprises a storage capacitors 22, a driving element 23, a selector switch 24 and a data switch 25.Driving element 23 is electrically connected to a power vd D to export an electric current I to organic illuminating element 21, luminous to drive organic illuminating element 21, organic illuminating element 21 is electrically connected between a driving element 23 and the power supply VSS, its luminous intensity is controlled by electric current I, and wherein power supply VSS can be an earth terminal.Storage capacitors 22 has the two ends that one first end 221 and one second end, 222, the first ends 221 and second end 222 are electrically connected to driving element 23 respectively, the electric current I of being exported with control driving component 23.Selector switch 24 is electrically connected to sweep trace SL, with first end 221 of conducting data line DL and storage capacitors 22.Data switch 25 is electrically connected to sweep trace SL, with second end 222 of another sweep trace of conducting SL ' with storage capacitors 22.
In general, the system that is used for show image comprises a plurality of image element structures 2, scan driving circuit and a data driving circuit, image element structure 2 is arrayed, a plurality of sweep traces SL connects scan drive circuit and pixel driving circuit 20, and a plurality of data lines DL connects data driving circuit and pixel driving circuit 20.The data driving circuit cooperates the scan drive circuit operation, and scan drive circuit will scan signal in regular turn and export on each sweep trace in different time, in order to do making the data driving circuit through data line data be write to pixel driving circuit 20 on each sweep trace.
Fig. 4 is in the pixel driving circuit 20 of preferred embodiment of the present invention, an oscillogram of the scanning signal on the sweep trace SL.As shown in Figure 4, the scanning signal activation one by one on each sweep trace SL1-SLi, the activation simultaneously of the scanning signal on the different scanning line SL according to the order of sweep trace SL.On the other hand, the scanning signal of each sweep trace SL is during disabled (disable), the identical 0V that is all of its voltage with power supply VSS, therefore, during the scanning signal activation on one of them sweep trace SL, scanning signal on its last, inferior one or other sweep traces SL is a disabled, and the voltage of these other sweep traces is identical with power supply VSS.
Referring again to shown in Figure 3, during data writes, scanning signal activation on the sweep trace SL, its unlatching (turn on) selector switch 24 and data switch 25, make first end 221 of selector switch 24 conducting data line DL and storage capacitors 22, second end 222 of another sweep trace of data switch 25 conductings SL ' and storage capacitors 22.Because the scanning signal disabled on another sweep trace SL ', so the identical 0V that is all with power supply VSS of its voltage make the potential difference (PD) at storage capacitors 22 two ends equal the voltage of data line DL, document signal intactly writes in the storage capacitors 22.
In the time will finishing the data write activity, during scanning signal disabled on the sweep trace SL, it closes (turn off) selector switch 24 and data switch 25, make driving element 23 do not electrically connect (disconnect) to data line DL and another sweep trace SL ', therefore, driving element 23 only is controlled by storage capacitors 22 and output current I, and electric current I is controlled by first end 221 of storage capacitors 22 and the potential difference (PD) of second end 222.Because document signal is recorded in storage capacitors 22 exactly, so electric current I can reflect document signal exactly, and then can drive organic illuminating element 21 exactly to reach predetermined luminous intensity.
Because during data writes, the two ends of driving element 23 are controlled by data line DL and another sweep trace SL ', therefore, the load voltages of organic illuminating element 21 itself can't influence the potential difference (PD) at two ends of driving element 23 and the electric current I of output thereof, therefore, even organic illuminating element 21 also can not influence electric current I because of decay causes its load voltage to rise.Moreover, owing to when data line DL writes data storage capacitors 22 is discharged and recharged, the current potential of second end 222 of storage capacitors 22 approaches 0, therefore data line DL's writes voltage and can be lower than 5V, the operating voltage of data driving circuit can be 5V, the data driving circuit can be implemented in the integrated circuit such as the CMOS processing procedure of general processing procedure, and it need be with expensive particular semiconductor processing procedure such as high pressure manufacturing process manufacturing, thereby can reduce the cost of data driving circuit.
In the present embodiment, another sweep trace SL ' can be last the sweep trace of sweep trace SL, an inferior sweep trace or other sweep traces, as long as during the scanning signal activation on the sweep trace SL, the scanning signal on another sweep trace SL ' is that disabled gets final product.
In addition, selector switch 24 is N type electric crystals with data switch 25, and electric crystal can be membrane transistor, and the gate of selector switch 24 is electrically connected to sweep trace SL, and its drain is electrically connected to data line DL, and its source electrode is electrically connected to first end 221 of storage capacitors 22.The gate of data switch 25 is electrically connected to sweep trace SL, and its drain is electrically connected to second end 222 of storage capacitors 22, and its source electrode is electrically connected to another sweep trace SL '.
Driving element 23 is N type electric crystals, its gate is electrically connected to first end 221 of storage capacitors 22, its source electrode is electrically connected to second end 222 of storage capacitors 22, its drain is electrically connected to a power vd D, the electric current I of driving element 23 outputs is size-controlled in the potential difference (PD) at storage capacitors 22 two ends, when the potential difference (PD) of first end 221 of storage capacitors 22 and second end 222 was big more, the electric current I of driving element 23 outputs was big more, makes that organic illuminating element 21 luminous intensities are strong more.Because document signal is recorded in storage capacitors 22 exactly, so electric current I can reflect document signal exactly, and then can drive organic illuminating element 21 exactly to reach predetermined luminous intensity.
In addition, each organic illuminating element 21 can be connected to power supply VSS jointly, and organic illuminating element 21 is not reverse geometry, and its structure with general organic illuminating element is identical, so it is compatible to existing processing procedure.
Fig. 5 is another equivalent circuit diagram of a kind of pixel driving circuit of preferred embodiment of the present invention.As shown in Figure 5, pixel driving circuit 20 more comprises a power switch 26, and power switch 26 is electrically connected to sweep trace SL, with turn-on power VDD and driving element 23.When writing data, see through second end, 222 chargings of 23 pairs of storage capacitors 22 of driving element for fear of power vd D, use and allow the voltage of second end 222 of storage capacitors 22 equate to be 0V with another sweep trace SL ', therefore, power switch 26 is to be used for insulating power supply VDD and driving element 23 when writing data, in data write finish after, it is used for turn-on power VDD and driving element 23.
In the present embodiment, power switch 26 is P type electric crystals, and its gate is electrically connected to sweep trace SL, and its source electrode is electrically connected to power vd D, and its drain is electrically connected to driving element 23.In this special instruction be, in pixel driving circuit 20, the electric crystal of power switch 26 and other electric crystal complementations, if other electric crystals such as driving element 23, selector switch 24 and data switch 25 are P type electric crystals, then power switch 26 should be set to N type electric crystal.
Fig. 6 is a kind of synoptic diagram that is used for the system of show image according to preferred embodiment of the present invention.As shown in Figure 6, the system 3 that is used for show image comprises an electronic installation 4, electronic installation 4 has an organic luminous panel 41 and an input block 42, organic luminous panel 41 comprises image element structure 2, scan drive circuit 411 and data driving circuit 412, and image element structure 2 is arrayed in organic luminous panel 41, on organic luminous panel 41, a plurality of sweep traces SL1-SLi is electrically connected between scan drive circuit 411 and each pixel driving circuit 20, a plurality of data lines DL1-DLj is electrically connected between data driving circuit 412 and each pixel driving circuit 20, wherein scan drive circuit 411, data driving circuit 412, image element structure 2 and pixel driving circuit 20 as previously mentioned, so repeat no more.Input block 42 is coupled with organic luminous panel 41, and provides input to organic luminous panel 41, so that organic luminous panel 41 show images.Wherein electronic installation 4 can be mobile phone, digital camera, personal digital assistant, notebook computer, desktop computer, televisor, automobile-used display or Portable DVD player.
Fig. 7 is a process flow diagram of the driving method of a kind of pixel driving circuit of preferred embodiment of the present invention.As shown in Figure 7, the driving method of pixel driving circuit comprises step S01 to S03, driving method is used for a pixel driving circuit 20, pixel driving circuit 20 drives an organic illuminating element 21, and electrically connect with one scan line SL and a data line DL, pixel driving circuit 20 comprises a driving element 23 and a storage capacitors 22.
Step S01 controls a document signal and writes storage capacitors 22 from data line DL during sweep trace SL goes up the signal activation, with the voltage of one first end 221 of setting storage capacitors 22.Then, step S02 controls the voltage of one second end 222 of another sweep trace SL ' setting storage capacitors 22 during sweep trace SL goes up the signal activation.At last, step S03 is according to first end 221 of storage capacitors 22 and the potential difference (PD) of second end 222, and control driving component 23 output current I are to organic illuminating element 21, and are luminous to drive organic illuminating element 21.
Because the driving method of the pixel driving circuit of present embodiment can be applicable to the pixel driving circuit 20 among earlier figures 3 and Fig. 5 embodiment, components identical has identical operations mode and effect, and detailed enforcement aspect and further instruction are discussed in previous embodiment, so repeat no more.
In sum, because of complying with a kind of system of show image and driving method of organic illuminating element of being used for of the present invention, first end of storage capacitors and the potential difference (PD) control driving component output current between second end, and first end of storage capacitors is connected to data line and receives document signal during the activation of scanning signal, its second end is connected to another sweep trace and receives another scanning signal, therefore, the load voltage of organic illuminating element can not influence the electric current of driving element output, and the terminal voltage that organic illuminating element is connected to driving element is controlled, thereby prolonged the serviceable life of organic illuminating element.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (18)
1. a system that is used for show image comprises a plurality of image element structures, it is characterized in that each image element structure comprises:
One organic illuminating element; And
One pixel driving circuit, drive this organic illuminating element, and electrically connect with one scan line and a data line, this pixel driving circuit has a driving element, one storage capacitors, one selector switch and a data switch, wherein this driving element is exported an electric current to this organic illuminating element, this storage capacitors has the two ends that one first end and one second end are electrically connected to this driving element respectively, in order to control this electric current that this driving element is exported, this selector switch is electrically connected to this sweep trace, this first end with this data line of conducting and this storage capacitors, this data switch is an electric crystal, its gate is electrically connected to this sweep trace, its drain is electrically connected to this second end of this storage capacitors, and its source electrode is electrically connected to another sweep trace, in order to this second end of this another sweep trace of conducting and this storage capacitors.
2. the system that is used for show image according to claim 1 is characterized in that last the sweep trace of wherein said another sweep trace for this sweep trace.
3. the system that is used for show image according to claim 1 is characterized in that wherein said another sweep trace time sweep trace for this sweep trace.
4. the system that is used for show image according to claim 1, it is characterized in that wherein said selector switch is an electric crystal, the gate of this selector switch is electrically connected to this sweep trace, and its drain is electrically connected to this data line, and its source electrode is electrically connected to this first end of this storage capacitors.
5. the system that is used for show image according to claim 1, it is characterized in that wherein said driving element one electric crystal, its gate is electrically connected to this first end of this storage capacitors, and its source electrode is electrically connected to this second end of this storage capacitors, and its drain is electrically connected to a power supply.
6. the system that is used for show image according to claim 1 is characterized in that wherein said pixel driving circuit more comprises:
One power switch is electrically connected to this sweep trace, with conducting one power supply and this driving element.
7. the system that is used for show image according to claim 6 is characterized in that wherein said power switch is an electric crystal, and its gate is electrically connected to this sweep trace, and its drain is electrically connected to this power supply, and its source electrode is electrically connected to this driving element.
8. the system that is used for show image according to claim 6 is characterized in that wherein said driving element N type electric crystal, and this power switch is a P type electric crystal.
9. the system that is used for show image according to claim 1 is characterized in that wherein said selector switch, this data switch and this driving element are N type electric crystals.
10. the system that is used for show image according to claim 1 is characterized in that wherein said image element structure is arrayed.
11. the system that is used for show image according to claim 1 is characterized in that more comprising:
Scan driving circuit electrically connects with these sweep traces; And
One data driving circuit electrically connects with these data lines, and wherein these image element structures, this scan drive circuit and this data driving circuit constitute an organic luminous panel.
12. the system that is used for show image according to claim 1 is characterized in that it more comprises:
One electronic installation has this organic luminous panel and an input block, and this input block and this organic luminous panel are coupled, and provides input to this organic luminous panel, so that this organic luminous panel show image.
13. the system that is used for show image according to claim 12 is characterized in that wherein said electronic installation is mobile phone, digital camera, personal digital assistant, notebook computer, desktop computer, televisor, automobile-used display or Portable DVD player.
14. the driving method of an organic illuminating element, be used for a pixel driving circuit, this pixel driving circuit drives an organic illuminating element, and electrically connect with one scan line and a data line, this pixel driving circuit comprises a driving element and a storage capacitors, it is characterized in that the driving method of organic illuminating element may further comprise the steps:
During signal activation on this sweep trace, control a document signal and write this storage capacitors, with the voltage of one first end of setting this storage capacitors from this data line;
During signal activation on this sweep trace, control the voltage that another sweep trace is set one second end of this storage capacitors; And
According to this first end of this storage capacitors and the potential difference (PD) of this second end, control this driving element and export an electric current to this organic illuminating element, luminous to drive this organic illuminating element.
15. the driving method of organic illuminating element according to claim 14 is characterized in that wherein during signal activation on this sweep trace signal disabled on this another sweep trace.
16. the driving method of organic illuminating element according to claim 14 is characterized in that last the sweep trace of wherein said another sweep trace for this sweep trace.
17. the driving method of organic illuminating element according to claim 14 is characterized in that wherein said another sweep trace time sweep trace for this sweep trace.
18. the driving method of organic illuminating element according to claim 14 is characterized in that it more may further comprise the steps:
During this sweep trace activation, isolate a power supply and this driving element; And
During this sweep trace disabled, this power supply of conducting and this driving element.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101123555A CN101136168B (en) | 2006-08-31 | 2006-08-31 | System used for displaying image and organic light-emitting component driving method |
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| CN2006101123555A CN101136168B (en) | 2006-08-31 | 2006-08-31 | System used for displaying image and organic light-emitting component driving method |
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| CN101136168B true CN101136168B (en) | 2010-12-01 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440014A (en) * | 2002-02-21 | 2003-09-03 | 友达光电股份有限公司 | Driving circuit in display screen |
| CN1705001A (en) * | 2004-06-02 | 2005-12-07 | 索尼株式会社 | Pixel circuit, active matrix apparatus and display apparatus |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1440014A (en) * | 2002-02-21 | 2003-09-03 | 友达光电股份有限公司 | Driving circuit in display screen |
| CN1705001A (en) * | 2004-06-02 | 2005-12-07 | 索尼株式会社 | Pixel circuit, active matrix apparatus and display apparatus |
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Address after: No. 160, science Road, bamboo town, Miaoli County, Taiwan, China Patentee after: Chimei Optoelectronics Co., Ltd. Address before: No. 1, Qi Gong Road, Tainan Science Industrial Park, Taiwan, Tainan Patentee before: Chimei Optoelectronics Co., Ltd. |