CN101206825A - Pixel, display using the same, and driving method for the same - Google Patents
Pixel, display using the same, and driving method for the same Download PDFInfo
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- CN101206825A CN101206825A CNA2007101608086A CN200710160808A CN101206825A CN 101206825 A CN101206825 A CN 101206825A CN A2007101608086 A CNA2007101608086 A CN A2007101608086A CN 200710160808 A CN200710160808 A CN 200710160808A CN 101206825 A CN101206825 A CN 101206825A
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Abstract
A pixel may include a light emitting element (OLED), a first transistor (M1), a second transistor (M2), a storage capacitor (Cst), and a third transistor (M3). The first transistor may be configured to transfer a data signal to a data line (Dm) when a scan signal is supplied to a scan line (Sn). The second transistor may be configured to supply a predetermined electric current from a first power supply (ELVDD) to a second power supply (Vref) through the light emitting element. The storage capacitor may be charged with a voltage corresponding to the data signal, one terminal being coupled to a gate electrode of the first transistor, and another terminal being coupled to the organic light emitting diode. The third transistor may supply a voltage of a reference power supply to the light emitting element when the scan signal is supplied to the scan line.
Description
Technical field
Embodiment relates to a kind of pixel, uses the display of this pixel and the driving method of this pixel, more particularly, relate to a kind of can show the image of expecting brightness and with the irrelevant pixel of the deterioration of light-emitting component, use the display of this pixel and the driving method of this pixel.
Background technology
Recently, developed and compared the various flat-panel monitors that can make weight saving and volume is reduced with cathode ray tube (CRT).Flat-panel monitor comprises LCD (LCD), Field Emission Display (FED), plasma display (PDP) and organic light emitting display.
In flat-panel monitor, organic light emitting display is used the compound next luminous Organic Light Emitting Diode by electronics and hole.Organic light emitting display has many advantages, comprises that response speed is fast and energy consumption is low.
The pixel of organic light emitting display comprises light-emitting component and image element circuit.Image element circuit generally includes the holding capacitor that is filled with the voltage corresponding with data-signal, and the described voltage corresponding with data-signal is supplied to light-emitting component, thereby shows the image of predetermined luminance.Yet when the light-emitting component deterioration, traditional organic light emitting display can not show the image of expecting brightness.
Specifically, when data-signal was supplied to image element circuit, holding capacitor was filled with the voltage of data-signal and is applied to poor corresponding voltage between the voltage of light-emitting component.When the voltage that is applied to light-emitting component changed owing to the deterioration of light-emitting component, the voltage that fills in holding capacitor correspondingly changed.Therefore, can not show the image of expecting brightness.
Summary of the invention
Therefore, embodiment relates to a kind of pixel, use the display of this pixel and drive the method for this pixel, overcome one or more problems that restriction and shortcoming by prior art cause basically.
Therefore, the aspect of embodiment be to provide a kind of can show the image of expecting brightness and with the irrelevant pixel of the deterioration of the light-emitting component of pixel, use the display of this pixel and the driving method of this pixel.
Can realize the above-mentioned and/or others of embodiment by a kind of pixel is provided, this pixel comprises: light-emitting component; The first transistor is constructed to transmit the data-signal from data line when sweep signal is supplied to sweep trace; Transistor seconds is constructed to predetermined current is fed to second source from first power supply through light-emitting component; Holding capacitor is constructed to be filled with the voltage corresponding with data-signal, and an end of holding capacitor is connected to the gate electrode of transistor seconds, and the other end of holding capacitor is connected to light-emitting component; The 3rd transistor is constructed to when sweep signal is supplied to sweep trace the voltage of reference power supply is fed to light-emitting component.
Holding capacitor can be filled with the poor corresponding voltage between the voltage with the voltage of data-signal and reference power supply.Described predetermined current can be and the corresponding electric current of voltage that fills in holding capacitor.The voltage of reference power supply can be less than the threshold voltage sum of first power source voltage and light-emitting component.The first transistor, transistor seconds and the 3rd transistor can be nmos pass transistors.
This pixel also can comprise the 4th transistor that is connected between the transistor seconds and first power supply, the 4th transistor is configured to end when emissioning controling signal is supplied to launch-control line, and conducting when emissioning controling signal is not supplied to launch-control line.When sweep signal was in high level, emissioning controling signal can be in low level.The 4th transistor can be a nmos pass transistor.
Can realize the above-mentioned and/or others of embodiment by a kind of display is provided, this display comprises: scanner driver is constructed to the driven sweep line; Data driver is constructed to driving data lines; Pixel is arranged on the infall of sweep trace and data line.Each pixel can comprise: light-emitting component; The first transistor is constructed to transmit the data-signal from data line when sweep signal is supplied to sweep trace; Transistor seconds is constructed to predetermined current is fed to second source from first power supply through light-emitting component; Holding capacitor is constructed to be filled with the voltage corresponding with data-signal, and an end of holding capacitor is connected to the gate electrode of transistor seconds, and the other end of holding capacitor is connected to light-emitting component; The 3rd transistor is constructed to when sweep signal is supplied to sweep trace the voltage of reference power supply is fed to light-emitting component.
Holding capacitor can be filled with the poor corresponding voltage between the voltage with the voltage of data-signal and reference power supply.Described predetermined current can be and the corresponding electric current of voltage that fills in holding capacitor.The voltage of reference power supply can be less than the threshold voltage sum of first power source voltage and light-emitting component.The first transistor, transistor seconds and the 3rd transistor can be nmos pass transistors.
This display can comprise the 4th transistor that is connected between the transistor seconds and first power supply, the 4th transistor is configured to end when emissioning controling signal is supplied to launch-control line, and conducting when emissioning controling signal is not supplied to launch-control line.When sweep signal was in high level, emissioning controling signal can be in low level.
Above-mentioned and/or the others of embodiment can be provided by the method that provides a kind of driving to comprise the display of pixel, this pixel is positioned at the infall of data line and sweep trace, this pixel has light-emitting component, this method comprises: when sweep signal was supplied to sweep trace, transmission was from the data-signal of data line; Predetermined current is fed to second source from first power supply through light-emitting component; When sweep signal is supplied to sweep trace, the voltage of reference power supply is fed to light-emitting component.
Description of drawings
Describe exemplary embodiment of the present invention in detail by the reference accompanying drawing, above and other feature of the present invention and advantage will become clearer to those of ordinary skills, in the accompanying drawings:
Fig. 1 shows the display according to first embodiment;
Fig. 2 shows the circuit diagram of the example pixel of using in the display in Fig. 1;
Fig. 3 shows the oscillogram of the example driving method of the example pixel among Fig. 2;
Fig. 4 shows the curve map that electric current changes according to the deterioration of light-emitting component;
Fig. 5 shows the display according to second embodiment;
Fig. 6 shows the circuit diagram of the example pixel of using in the display in Fig. 5;
Fig. 7 shows the oscillogram of the example driving method of the example pixel among Fig. 6.
Embodiment
Below, describe with reference to the accompanying drawings according to certain exemplary embodiments of the present invention.Here, when first element was described to connect or is attached to second element, first element not only can directly connect or be attached to second element, and can connect indirectly or be attached to second element by three element.In addition, for the sake of clarity, omitted understanding the unnecessary element of the present invention fully.In addition, identical label is represented components identical all the time.
Fig. 1 shows the display according to first embodiment.With reference to Fig. 1, display can comprise pixel portion 130, scanner driver 110, data driver 120 and timing control unit 150.
Fig. 2 shows the circuit diagram of the example pixel of using in the display in Fig. 1.For convenience of description, Fig. 2 shows the example pixel that is connected to n sweep trace Sn and m data line Dm.
With reference to Fig. 2, pixel 140 can comprise light-emitting component and image element circuit 142, and described light-emitting component here is Organic Light Emitting Diode OLED.Image element circuit 142 can be connected to data line Dm and sweep trace Sn, and may command Organic Light Emitting Diode OLED.
The anode of Organic Light Emitting Diode OLED can be connected to image element circuit 142, and the negative electrode of Organic Light Emitting Diode OLED can be connected to second source ELVSS.Organic Light Emitting Diode OLED can produce the light that has with from the corresponding predetermined luminance of the electric current of image element circuit 142.
When sweep signal was supplied to sweep trace Sn, image element circuit 142 can be fed to the amount of the electric current of Organic Light Emitting Diode OLED according to the data-signal control that is fed to data line Dm.In order to realize this control, image element circuit 142 can comprise the first transistor M1, transistor seconds M2, holding capacitor Cst and the 3rd transistor M3.All transistors can be the transistors of same type, and for example, the first transistor M1 to the three transistor M3 all can be nmos pass transistor.
Transistor seconds M2 can be connected between the first power supply ELVDD and the Organic Light Emitting Diode OLED.The first transistor M1 can be connected between transistor seconds M2 and the data line Dm, and can be scanned line Sn control.Holding capacitor Cst can be connected between the gate electrode and second electrode of transistor seconds M2.The 3rd transistor M3 can be connected between second electrode and reference power supply Vref of transistor seconds M2, and can be scanned line Sn control.
The gate electrode of the first transistor M1 can be connected to sweep trace Sn, and first electrode of the first transistor M1 can be connected to data line Dm.In addition, second electrode of the first transistor M1 can be connected to the end of holding capacitor Cst.When by sweep trace Sn supply sweep signal, the first transistor M1 conducting, and will be fed to the gate electrode of the data signal transmission of data line Dm to transistor seconds M2.At this moment, holding capacitor Cst is filled with the voltage corresponding with data-signal.
The gate electrode of transistor seconds M2 can be connected with the end of holding capacitor Cst, and first electrode of transistor seconds M2 can be connected to the first power supply ELVDD.Second electrode of transistor seconds M2 can be connected to the other end of holding capacitor Cst and the anode of Organic Light Emitting Diode OLED.Transistor seconds M2 can control the amount that flows to the electric current of second source ELVSS from the first power supply ELVDD through Organic Light Emitting Diode OLED according to the magnitude of voltage that is stored among the holding capacitor Cst.
The end of holding capacitor Cst can be connected to the gate electrode of transistor seconds M2, and the other end of holding capacitor Cst can be connected to the anode of Organic Light Emitting Diode OLED.Holding capacitor Cst can be filled with the voltage corresponding with data-signal.
The gate electrode of the 3rd transistor M3 can be connected to sweep trace Sn, and second electrode of the 3rd transistor M3 can be connected to the anode of Organic Light Emitting Diode OLED.In addition, first electrode of the 3rd transistor M3 can be connected to reference power supply Vref.When sweep signal is supplied to sweep trace Sn, the 3rd transistor M3 conducting, thus the voltage of the anode of Organic Light Emitting Diode OLED is remained the voltage of reference power supply Vref.That is, when the end of holding capacitor Cst was filled with the voltage corresponding with data-signal, the other end of holding capacitor Cst remained the voltage of reference power supply Vref.
Fig. 3 shows the oscillogram of the example driving method of the pixel among Fig. 2.With reference to Fig. 2 and Fig. 3, at first, sweep signal is supplied to sweep trace Sn, that is, sweep signal is in high level.When sweep signal is supplied to sweep trace Sn, the first transistor M1 and the 3rd transistor M3 conducting.
When the 3rd transistor M3 conducting, the voltage of reference power supply Vref is supplied to the anode of Organic Light Emitting Diode OLED.When the first transistor M1 conducting, the data-signal that is fed to data line Dm is provided to the end of holding capacitor Cst.In this case, holding capacitor Cst is filled with the poor corresponding voltage between the voltage with the voltage of data-signal and reference power supply Vref.In other words, holding capacitor Cst is filled with the voltage corresponding with data-signal, and irrelevant with the deterioration of Organic Light Emitting Diode OLED.Therefore, when the end of holding capacitor Cst is filled with the voltage corresponding with data-signal, because the other end of holding capacitor Cst remains the voltage of reference power supply Vref, so holding capacitor Cst can be filled with the voltage of expectation.
When stopping to sweep trace Sn supply sweep signal, transistor seconds M2 is provided to second source ELVSS from the first power supply ELVDD through Organic Light Emitting Diode OLED with the electric current corresponding with filling voltage in holding capacitor Cst.Therefore, Organic Light Emitting Diode OLED can produce the light of predetermined luminance.
The voltage of the first power supply ELVDD can be set to the voltage greater than second source ELVSS, with supply of current stably.The voltage of reference power supply Vref can be configured to the voltage less than the threshold voltage sum of the voltage of the first power supply ELVDD and Organic Light Emitting Diode OLED.
Fig. 4 shows the curve map that electric current changes according to the deterioration of Organic Light Emitting Diode.In Fig. 4, I
OLEDThe amount of the electric current of Organic Light Emitting Diode OLED, Δ V are flow through in expression
OLEDThe variation of the voltage of the anode that is applied to Organic Light Emitting Diode OLED that expression is caused by the deterioration of Organic Light Emitting Diode OLED.In addition, in Fig. 4, the voltage of data-signal is set so that the electric current of 100nA flows to Organic Light Emitting Diode OLED.
With reference to Fig. 4, in comprising pixel with two transistorized image element circuits, when the change in voltage of the anode of Organic Light Emitting Diode OLED, the electric current I of Organic Light Emitting Diode OLED
OLEDAlso change.In this concrete example, when the voltage of Organic Light Emitting Diode OLED changes 0.2V, the electric current I of Organic Light Emitting Diode OLED
OLEDDeviation be 28%.Therefore, be difficult to utilize this pixel to show the image of expectation brightness.
Yet, have three transistorized embodiment according to image element circuit, though the voltage of Organic Light Emitting Diode OLED changes the electric current I of Organic Light Emitting Diode OLED
OLEDKept.Therefore, example pixel can show the image of expecting brightness, and irrelevant with the deterioration of Organic Light Emitting Diode OLED.
Fig. 5 shows the display according to second embodiment.With reference to Fig. 5, display can comprise pixel portion 230, scanner driver 210, data driver 220 and timing control unit 250.
Fig. 6 shows the circuit diagram of the example pixel of using in the display in Fig. 5.For convenience of description, Fig. 6 shows the example pixel that is connected to n sweep trace Sn and m data line Dm.
With reference to Fig. 6, can comprise light-emitting component and image element circuit 242 according to the pixel 240 of embodiment, described light-emitting component here is Organic Light Emitting Diode OLED.Image element circuit 242 can be connected to data line Dm and launch-control line En and sweep trace Sn, and may command Organic Light Emitting Diode OLED.
The anode of Organic Light Emitting Diode OLED can be connected to image element circuit 242, and the negative electrode of Organic Light Emitting Diode OLED can be connected to second source ELVSS.Organic Light Emitting Diode OLED can produce the light of the predetermined luminance corresponding with the electric current of supplying from image element circuit 242.
When sweep signal was supplied to sweep trace Sn, image element circuit 242 can be fed to the amount of the electric current of Organic Light Emitting Diode OLED according to the data-signal control that is fed to data line Dm.In order to realize this control, image element circuit 242 can comprise the first transistor M1, transistor seconds M2, holding capacitor Cst, the 3rd transistor M3 and the 4th transistor M4.Here, the first transistor M1 to the four transistor M4 all can be the transistor of same type, for example nmos pass transistor.
Transistor seconds M2 can be connected between the 4th transistor M4 and the Organic Light Emitting Diode OLED.The first transistor M1 can be connected between transistor seconds M2 and the data line Dm, and can be scanned line Sn control.Holding capacitor Cst can be connected between the gate electrode and second electrode of transistor seconds M2.The 3rd transistor M3 can be connected between second electrode and reference power supply Vref of transistor seconds M2, and can be scanned line Sn control.The 4th transistor M4 can be connected between first electrode of the first power supply ELVDD and transistor seconds M2, and can be launched control line En control.
The gate electrode of the first transistor M1 can be connected to sweep trace Sn, and first electrode of the first transistor M1 can be connected to data line Dm.In addition, second electrode of the first transistor M1 can be connected to the end of holding capacitor Cst.When by sweep trace Sn supply sweep signal, the first transistor M1 conducting, and will be fed to the gate electrode of the data signal transmission of data line Dm to transistor seconds M2.At this moment, holding capacitor Cst is filled with the voltage corresponding with data-signal.
The gate electrode of transistor seconds M2 can be connected to the end of holding capacitor Cst, and first electrode of transistor seconds M2 can be connected to second electrode of the 4th transistor M4.Second electrode of transistor seconds M2 can be connected to the other end of holding capacitor Cst and the anode of Organic Light Emitting Diode OLED.Transistor seconds M2 can control the amount that flows to the electric current of second source ELVSS from the first power supply ELVDD through Organic Light Emitting Diode OLED corresponding to the magnitude of voltage that is stored among the holding capacitor Cst.
The end of holding capacitor Cst can be connected to the gate electrode of transistor seconds M2, and the other end of holding capacitor Cst can be connected to the anode of Organic Light Emitting Diode OLED.Holding capacitor Cst is filled with the voltage corresponding with data-signal.
The gate electrode of the 3rd transistor M3 can be connected to sweep trace Sn, and second electrode of the 3rd transistor M3 can be connected to the anode of Organic Light Emitting Diode OLED.In addition, first electrode of the 3rd transistor M3 can be connected to reference power supply Vref.When sweep signal is supplied to sweep trace Sn, the 3rd transistor M3 conducting, thus the voltage of the anode of Organic Light Emitting Diode OLED is remained the voltage of reference power supply Vref.That is, when the end of holding capacitor Cst was filled with the voltage corresponding with data-signal, the other end of holding capacitor Cst remained the voltage of reference power supply Vref.
The gate electrode of the 4th transistor M4 can be connected to launch-control line En, and first electrode of the 4th transistor M4 can be connected to the first power supply ELVDD.Second electrode of the 4th transistor M4 can be connected to first electrode of transistor seconds M2.In the supply emissioning controling signal, the 4th transistor M4 makes the transistor seconds M2 and the first power supply ELVDD electrical isolation.In all the other time periods, the 4th transistor M4 is electrically connected to the first power supply ELVDD with transistor seconds M2.
Fig. 7 shows the oscillogram of the example driving method of the example pixel that shows among Fig. 6.As can be seen from Figure 7, when the supply sweep signal, when promptly sweep signal is in high level, the supply emissioning controling signal, promptly emissioning controling signal is in low level.It can also be seen that from Fig. 7 before sweep signal was in high level, emissioning controling signal can be in low level; Before emissioning controling signal was in high level, sweep signal can be in low level.
With reference to Fig. 6 and Fig. 7, at first, emissioning controling signal is supplied to launch-control line En.When emissioning controling signal was supplied to launch-control line En, the 4th transistor M4 ended.When the 4th transistor M4 ends, the transistor seconds M2 and the first power supply ELVDD electrical isolation, thus prevent that unnecessary electric current from flowing to Organic Light Emitting Diode OLED.
Then, sweep signal is supplied to sweep trace Sn.When sweep signal is supplied to sweep trace Sn, the first transistor M1 and the 3rd transistor M3 conducting.
When the 3rd transistor M3 conducting, the voltage of reference power supply Vref is supplied to the anode of Organic Light Emitting Diode OLED.When the first transistor M1 conducting, the data-signal that is fed to data line Dm is provided to the end of holding capacitor Cst.In this case, holding capacitor Cst is filled with the poor corresponding voltage between the voltage with the voltage of data-signal and reference power supply Vref.Therefore, holding capacitor Cst is filled with the voltage corresponding with data-signal, and irrelevant with the deterioration of Organic Light Emitting Diode OLED.In other words, when the end of holding capacitor Cst is filled with the voltage corresponding with data-signal, because the other end of holding capacitor Cst remains the voltage of reference power supply Vref, so holding capacitor Cst can be filled with the voltage of expectation.
When the sweep signal that is fed to sweep trace Sn became low level, the first transistor M1 and the 3rd transistor M3 ended.When the emissioning controling signal that is fed to launch-control line En becomes high level, for example, after sweep signal becomes low level, the 4th transistor M4 conducting.At this moment, transistor seconds M2 is fed to second source ELVSS from the first power supply ELVDD through Organic Light Emitting Diode OLED with the electric current corresponding with filling voltage in holding capacitor Cst.Therefore, Organic Light Emitting Diode OLED can produce the light of predetermined luminance.
The voltage of the first power supply ELVDD can be set to the voltage greater than second source ELVSS, with supply of current stably.The voltage of reference power supply Vref can be configured to the voltage less than the threshold voltage sum of the voltage of the first power supply ELVDD and Organic Light Emitting Diode OLED.
Disclosing exemplary embodiment of the present invention here, though adopted particular term, be to use these terms, and only explained these terms according to common with descriptive implication, is not the purpose for restriction.Therefore, it will be appreciated by one skilled in the art that under the situation of the spirit and scope of the present invention of in not breaking away from, setting forth as claim, can make on the various forms with details on change.
Claims (19)
1. pixel comprises:
Light-emitting component;
The first transistor is constructed to transmit the data-signal from data line when sweep signal is supplied to sweep trace;
Transistor seconds is constructed to predetermined current is fed to second source from first power supply through light-emitting component;
Holding capacitor is constructed to be filled with the voltage corresponding with data-signal, and an end of holding capacitor is connected to the gate electrode of transistor seconds, and the other end of holding capacitor is connected to light-emitting component;
The 3rd transistor is constructed to when sweep signal is supplied to sweep trace the voltage of reference power supply is fed to light-emitting component.
2. pixel as claimed in claim 1, wherein, holding capacitor is constructed to be filled with the poor corresponding voltage between the voltage with the voltage of data-signal and reference power supply.
3. pixel as claimed in claim 2, wherein, described predetermined current is and the corresponding electric current of voltage that fills in holding capacitor.
4. pixel as claimed in claim 1, wherein, the voltage of reference power supply is less than the threshold voltage sum of first power source voltage and light-emitting component.
5. pixel as claimed in claim 1, wherein, the first transistor, transistor seconds and the 3rd transistor are nmos pass transistors.
6. pixel as claimed in claim 1, also comprise the 4th transistor that is connected between the transistor seconds and first power supply, the 4th transistor is configured to end when emissioning controling signal is supplied to launch-control line, and conducting when emissioning controling signal is not supplied to launch-control line.
7. pixel as claimed in claim 6, wherein, when sweep signal was in high level, emissioning controling signal was not in high level.
8. pixel as claimed in claim 6, wherein, the 4th transistor is a nmos pass transistor.
9. pixel as claimed in claim 1, wherein, light-emitting component is an Organic Light Emitting Diode.
10. display comprises:
Scanner driver is constructed to the driven sweep line;
Data driver is constructed to driving data lines;
Pixel is arranged on the infall of sweep trace and data line,
Each pixel comprises:
Light-emitting component;
The first transistor is constructed to transmit the data-signal from data line when sweep signal is supplied to sweep trace;
Transistor seconds is constructed to predetermined current is fed to second source from first power supply through light-emitting component;
Holding capacitor is constructed to be filled with the voltage corresponding with data-signal, and an end of holding capacitor is connected to the gate electrode of transistor seconds, and the other end of holding capacitor is connected to light-emitting component;
The 3rd transistor is constructed to when sweep signal is supplied to sweep trace the voltage of reference power supply is fed to light-emitting component.
11. display as claimed in claim 10, wherein, holding capacitor is constructed to be filled with the poor corresponding voltage between the voltage with the voltage of data-signal and reference power supply.
12. display as claimed in claim 11, wherein, described predetermined current is and the corresponding electric current of voltage that fills in holding capacitor.
13. display as claimed in claim 10, wherein, the voltage of reference power supply is less than the threshold voltage sum of first power source voltage and light-emitting component.
14. display as claimed in claim 10, wherein, the first transistor, transistor seconds and the 3rd transistor are nmos pass transistors.
15. display as claimed in claim 10, also comprise the 4th transistor that is connected between the transistor seconds and first power supply, the 4th transistor is configured to end when emissioning controling signal is supplied to launch-control line, and conducting when emissioning controling signal is not supplied to launch-control line.
16. display as claimed in claim 15, wherein, when sweep signal was in high level, emissioning controling signal was not in high level.
17. display as claimed in claim 10, wherein, light-emitting component is an Organic Light Emitting Diode.
18. a driving comprises the method for the display of pixel, described pixel is positioned at the infall of data line and sweep trace, and described pixel has light-emitting component, and described method comprises:
When sweep signal was supplied to sweep trace, transmission was from the data-signal of data line;
Predetermined current is fed to second source from first power supply through light-emitting component;
When sweep signal is supplied to sweep trace, the voltage of reference power supply is fed to light-emitting component.
19. method as claimed in claim 18 wherein, only when not having sweep signal to be supplied to sweep trace, is carried out the step of the described predetermined current of supply.
Applications Claiming Priority (3)
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| KR20060130107 | 2006-12-19 | ||
| KR1020060130108 | 2006-12-19 | ||
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901576A (en) * | 2010-07-26 | 2010-12-01 | 友达光电股份有限公司 | Organic light-emitting diode pixel circuit |
| CN108538253A (en) * | 2018-04-23 | 2018-09-14 | 深圳市华星光电半导体显示技术有限公司 | The pixel driver system and driving method of displayer |
| CN108986738A (en) * | 2018-07-18 | 2018-12-11 | 友达光电股份有限公司 | Pixel structure |
-
2007
- 2007-12-18 CN CNA2007101608086A patent/CN101206825A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901576A (en) * | 2010-07-26 | 2010-12-01 | 友达光电股份有限公司 | Organic light-emitting diode pixel circuit |
| CN101901576B (en) * | 2010-07-26 | 2012-12-12 | 友达光电股份有限公司 | Organic light-emitting diode pixel circuit |
| CN108538253A (en) * | 2018-04-23 | 2018-09-14 | 深圳市华星光电半导体显示技术有限公司 | The pixel driver system and driving method of displayer |
| US11037510B2 (en) | 2018-04-23 | 2021-06-15 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Pixel driving system for AMOLED display device and driving method |
| CN108986738A (en) * | 2018-07-18 | 2018-12-11 | 友达光电股份有限公司 | Pixel structure |
| CN108986738B (en) * | 2018-07-18 | 2020-06-19 | 友达光电股份有限公司 | Pixel structure |
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Effective date of registration: 20090116 Address after: Gyeonggi Do Xin hole Korea Suwon City District 575. Applicant after: Samsung Mobile Display Co., Ltd. Address before: Gyeonggi Do Xin hole Korea Suwon City District 575. Applicant before: Samsung SDI Co., Ltd. |
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