TW201137825A - Organic light emitting diode display and organic light emitting diode pixel circuit thereof - Google Patents

Abstract

An organic light emitting diode (OLED) display and an organic light emitting diode pixel circuit thereof are provided. The OLED pixel circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a capacitor and an organic light emitting diode. A source/drain of the first transistor is adapted to receive display data. The other source/drain of the first transistor is coupled to a source/drain of the fourth transistor and is coupled to the gate of the second transistor and a source/drain of the third transistor through the capacitor. A source/drain of the second transistor is coupled to the other source/drain of the third transistor and the other source/drain of the fourth transistor and is coupled to a source/drain of the fifth transistor. The other source/drain of the fifth transistor is coupled to a first supply voltage. The anode and the cathode of the organic light emitting diode are coupled to the other source/drain of the second transistor and a second supply voltage respectively. Wherein, the second supply voltage is smaller than the first supply voltage.

Description

201137825 VI. Description of the Invention: [Technical Field] The present invention relates to a display technology for an organic light-emitting diode, and more particularly to a light-emitting diode display device and an organic light-emitting diode display thereof Prime circuit. [Prior Art] An organic light emitting diode (Organic Light Emitting Diode) panel is an organic light emitting diode as a light emitting element. The organic light-emitting diode is an element that is driven by an electric current, and its hairiness changes with the current passing through the organic light-emitting diode. Therefore, how to accurately control the current passing through the organic light-emitting diode becomes an important issue in the development of the organic electroluminescent panel. Please refer to Fig. 1 which is a schematic view of a conventional organic light emitting diode display device. The organic light emitting diode display device 100 includes a scan driving device 110, a data driving circuit 120, a power supply voltage supply circuit 13A, and a display panel 140. The display panel 140 further includes a plurality of scan lines (as indicated by the symbol 142), a plurality of data lines (as indicated by the numeral 144), a wire 146 and a plurality of pixels (such as each pixel 148 indicated by the spring 148). It is composed of a transistor 148, an electrocardiograph 148_2, a capacitor 148-3, and an organic light-emitting diode 148_4. The transistor (10) and the 148-2 are realized by a Ν-type transistor, for example, a ν-type film. The O-type thin-Film Transistor (N_type TFT) is used for the circuit, and the OVSS shown in the figure is the reference power supply voltage, for example, the ground potential. In general, the transistor 148-1 is in such a state. The circuit architecture is called a switching transistor, and the transistor 148-2 is called a driver transistor in such a pixel circuit structure. In the architecture shown in Figure 1, the transistor 148_2 in each pixel 148 The power supply voltage 201137825 OVDD ' provided by the power supply voltage supply circuit 130 is received through the wire 146 and the cathode of the organic light-emitting diode 148 4 in each pixel 148 is coupled to the reference (four) Wei voltage 0VSS. The voltage of the displayed data will be the same as the power supply voltage 0VDD and 〇vss The difference affects the magnitude of the current passing through the organic light-emitting diode 148-4, thereby controlling the brightness of the organic light-emitting diode 148-4. However, since the transistors in the above-mentioned halogens 148 are different in process, However, there are different threshold voltages (Thresh〇kJ v〇hage) variations, and different threshold voltage variations may occur due to the threshold voltage drift caused by long-term operation, which causes the currents of the respective organic light-emitting diodes 148_4 to be inconsistent. The degree of acceptance of the halogen 148 is inconsistent, which leads to uneven brightness of the display screen. In addition, as the organic light-emitting diode 148_4 ages, the internal resistance of the organic light-emitting diode 148_4 rises, further making the organic light-emitting diode The voltage across the pole body 148_4 rises, and the rise in the voltage across the organic light-emitting diode 148_4 will force the pole-source voltage (ie, vds) of the transistor 148-2 (ie, the driving transistor) to become smaller. The magnitude of the current through the transistor 148-2 is proportional to the voltage of the 乂(10) of the transistor 148_2, so that in the case where the VDS voltage of the transistor 148-2 becomes small, the Φ passes through the transistor I48-2. The flow is also reduced, further reducing the brightness of the organic light-emitting diode 148-4. As a result, the aging phenomenon of the organic light-emitting diode 148 4 reduces the brightness of the organic light-emitting diode 148·4, resulting in There is a phenomenon of unevenness in the display surface. These uneven brightness phenomena are called image sticking phenomenon. As can be seen from the above, the organic light-emitting diode pixel circuit shown by pixel 148 will The phenomenon of uneven brightness on the display screen due to the critical voltage variation of the transistor may also cause uneven brightness of the display screen due to aging of the organic light-emitting body. 5 201137825 [Summary of the Invention] Lu's can improve the display of 昼^brightness unevenness and organic luminescence due to the electrification of the electric two-electron luminescent diodes: the polar body of the old body ^^ In the present invention, a second embodiment of the present invention is provided. Transistor, second transistor, power generation 5 pole circuit gamma ^

Capacitor and _ _ 顾;; mn_ crystal, - source / no pole and second source / no pole, the body has a first - gate, the first material. The capacitance is the oldest potential*, and the original/bungee is suitable for receiving display assets. The first and second creeps and the first end face are connected to the second source/source_ and the third and third secret poles have a first turn of the third wall. The third transistor is connected to the fifth source/drain and the sixth source/drain, and the fifth source/drain is coupled to the sixth source/drain to the third source/drain. The fourth source, the seventh source/w eighth source/drain, and the seventh source/the second source/drainage and the eighth source/drain are coupled to the third source/drain. The basin has a fifth, a ninth source pole and a seventh weave, the true t-axis is connected to the first-supply voltage, and the tenth source/secret is connected to the third source/. The anode and the cathode of the organic light-emitting one are lightly connected to the fourth tour/; and the pole and the second power supply voltage. Wherein, the second power supply voltage is less than the first power supply. According to a preferred embodiment of the above-described organic light-emitting diode pixel circuit, during the pre-charging period, the first transistor, the third transistor and the fifth transistor are each turned on according to the gate signal thereof. The fourth transistor is turned off according to the gate of the gate; during the writing period, the first transistor and the third transistor are respectively turned on according to the gate signal thereof, and the fourth transistor and the fifth transistor are fifth. The transistor is 6 201137825, during the illuminating period, the first transistor and the fifth transistor =====', during the period of the transistor, at 4=one of the panel, the data=the light-emitting one shows the device' Xianbei drive circuit and scan drive Lei Zheng. In addition to the body; it also includes a first-electric diode. Capacitor and organic light emitting diodes/drain electrodes, and 篦一, 语am has a gate, a first source/dual pole and a first end-end patch-end, and is used to receive display data. The capacitor diode has a 'first:: pole first source _. The second end of the first capacitor. Body: two = extremely third source / bungee. The first: electrical connection: the body has a pole = no pole, and no pole, and the seventh source / no pole consumes the second; the fifth gate '苐 nine:::= pole = fifth electric crystal Zhao With the tenth source of light / _ connected to the third source _. Said = pressure. Wherein, the second source and the cathode respectively have a fourth source/drain and a second power supply circuit for raising the voltage smaller than the first power supply. The data drives a pole, as for the scan driving circuit, and the fourth transistor and the fifth transistor are turned off 'also used to send the 201137825 == central control (four) - the transistor and the third transistor and the fifth The crystal is turned on. Among them, write (four) brother four 冤曰曰 during the illuminating period after writing people. After the pre-domain, the present invention uses five transistors, a capacitor, an organic light-emitting diode, and a halogen circuit. By substituting these for "2 = off, and the specific conduction timing of each transistor is produced (4) The circuit boundary is electrically over the organic (four) diode current A is small and the driving transistor is near == through the organic light-emitting diode Current will be related to organic light

ratio. Therefore, the luminance of the organic light-emitting diode is independent of the driving external voltage, and thus the luminance of each pixel can be made uniform. The second = illuminating diode aging causes the cross-voltage of the organic light-emitting diode: the current through the organic light-emitting diode (four) will also increase with the increase in the voltage across the layer, saying that the current through the organic-emitting k-pole Will increase with the degree of aging of the body. Therefore, the phenomenon that the brightness of each pixel is reduced due to organic light emission = body aging can be improved by the above current magnitude:::: to compensation', thereby improving the aging of the organic light-emitting diode to make the above-mentioned Other objects, features, and advantages will be apparent from the following description of the preferred embodiments. [Embodiment] First Embodiment: Referring to Fig. 2, an organic light emitting diode circuit according to an embodiment of the present invention is shown. The organic light-emitting diode pixel circuit 200 is composed of an transistor 曰, a transistor 204, a capacitor, a transistor 208, a transistor 210 (ie, a driving s-body), an organic light-emitting diode, and a transistor. composition. In this example, 201137825, the above five transistors are all realized by an SJ type transistor, for example, by an N-type thin film transistor. The OVDD shown in Fig. 2 is the power supply voltage supplied from a power supply voltage supply circuit (not shown). The OVSS shown in the figure is the reference power supply voltage, for example, the ground potential. As a matter of course, the power supply voltage 0VDD is greater than the power supply voltage OVSS. In addition, one of the transistors 202 is not suitable for receiving the display material VDATA. The gates of the transistors 202 and 204 are both used to receive the scanning signal Gn ' where n is a natural number and Gn is the scanning signal transmitted by the nth scanning line. The gate of the transistor 208 is used to receive the enable signal ΕΜ. The gate of the transistor Lu 214 is used to receive the inverted signal χ〇η of the scanning signal Gn. 3 is a timing diagram of the signal VDATA, the enable signal EM, the scan signal Gn, and the inverted signal χ〇η of FIG. Please refer to Figure 3 and Figure 2 as required. In the pre-charging period p, the scanning signal Gn is at a high level (High), the inversion signal XGn of the scanning signal Gn is at a low level (L〇w), and the enabling signal EM is at a high level. Since both the scanning signal Gn and the enable signal EM are at a high level, the transistors 202, 204 and 208 are all turned on (Turn 〇n). Since the inverted signal xGn of the scanning signal Gn is at a low level, the transistor 214 is turned off (Turn 〇 ̄). The state of the circuit at this time can be represented by FIG. FIG. 4 is a diagram showing the circuit state of the organic light emitting diode halogen circuit of FIG. 2 during a precharge period p. Referring to FIG. 4, the magnitude of the voltage of the contact G and the voltage across the capacitor 2〇6 can be expressed by the following equations (1) and (2), respectively:

Vg=〇VDD ' ......(1)

Cst=〇VDD-Vdata (2) Its application 'Vg is expressed as the voltage of the contact G, that is, the gate voltage of the transistor 21〇, and cst is the magnitude of the voltage across the capacitor 20ό. Please refer to Figure 3 again. Then, during the write period, the scan signal remains at the high level for 201137825, the inverted signal XGn of the scan signal Gn is also kept at the low level, and the enable signal EM is turned to the low level. Therefore, the organic light emitting diode circuit 200 is changed from the circuit state shown in Fig. 4 to the circuit state shown in Fig. 5. FIG. 5 is a diagram showing the circuit state of the organic light emitting diode device of FIG. 2 during the writing period w. Please refer to Figure 5 and Figure 3 as required. At this time, since the scanning signal Gn is at a high level, the transistors 202 and 204 are both turned on. Since both the enable signal EM and the inverted signal XGn of the scanning signal Gn are at a low level, the transistors 208 and 214 are both turned off. At this time, the magnitude of the voltage of the contact G and the voltage across the capacitor 206 can be expressed by the following equations (3) and (4): VG=yS〇+Vth (3) CST = Vso + Vth ~ Vdata ... (4) where VSQ is the magnitude of the voltage at which the contact S is at this time, that is, the voltage at which the source of the transistor is at this time, and Vth is expressed as the voltage of the transistor 210. Please refer to Figure 3 again. Next, in the light-emitting period E, the scanning signal α changes to a low level, the inverted signal XGn of the scanning signal Gn is converted to a high level, and the enable signal EM is also converted to a high level. Therefore, the organic light-emitting diode pixel, the path 200 will be changed from the circuit state shown in Fig. 5 to the circuit state shown in Fig. 6. FIG. 6 is a diagram showing the circuit state of the organic light emitting diode pixel circuit of FIG. 2 during the light emitting period E. Please refer to FIG. 6 and FIG. 3 as needed for the description. At this time, since the scanning signal Gn is at a low level, the transistors 2〇2 and 2〇4 are both turned off. Since both the enable signal EM and the inverted signal XGn of the scanning signal Gn are at a high level, the transistors 208 and 214 are both turned on. At this time, the gate-source voltage (ie, VGS voltage) of the transistor 21〇 can be expressed by the following formula (5): VGS = OVDD + ys〇 + V(h _ ν〇ΑτΑ - ys ...... (5) 201137825 where vs is the contact point s at this time, the source of the electric current at this time is much smaller than the voltage at that time, that is, the transistor 210 八, ° V th means a pressure, and will be listed above. The formula (S) is further advanced, and the critical electric power vgs-〇vdd+v of the horse crystal 210 is obtained by the following formula (6). Among them, (6) is expressed as '· The current of the LED 212 can be expressed by the following formula (7)

OLED 2 K^V〇s-Vj 0)

Indicates the magnitude of the current of the two-digit V, the organic light-emitting diode 212, and κ v矣 is the two-day touch transistor 21. The gate and source voltages, and the second: the threshold voltage of f 0 . Therefore, by substituting the above formula (6) into the above formula (7), the following formula (8) can be obtained: 夕(8)

OLED iK (〇VDD + Vth-V_-AVs - Vj2 (8) and the above equation (8) is further stepped back to obtain the following equation (9): • I〇LED = \Ki〇VDD ~ VDATA -AFS)2 (9) From equation (9), the size of the LED is independent of the threshold voltage of the transistor 21〇. In other words, the size of the I0LED is not affected by the threshold voltage variation of the transistor 21〇. Therefore, the party's degree of each pixel is consistent. Further, ΔΚΑ is known from t of the above formula (6). And wherein fsq = 〇^ + l _, vth_0LED is the threshold voltage of the organic light-emitting diode 212. Therefore, according to these two equations, the above equation (9) can be further refined to obtain the following formula (1〇): (10) l〇UD = ~K(OVDD - VDATA -vs+ OVSS + vlh OLED y 201137825 It can be seen from equation (10) that the size of the iole is proportional to the size of the Vth 0 LED. In other words, regardless of the aging of the organic light-emitting diode 212, the cross-voltage of the organic light-emitting diode 212 rises. The magnitude of the current of the light-emitting diode 212 increases with the increase of the voltage across the cross-voltage. Therefore, the phenomenon that the brightness of each pixel is reduced due to the aging of the organic light-emitting diode can be compensated by the increase of the above-mentioned current. Further, the scar phenomenon caused by the aging of the organic light-emitting diode is improved. Second Embodiment: ® With the teaching of the first embodiment, those skilled in the art should know that even the organic light-emitting diode pixel circuit 200 The transistor 214 is modified to be implemented by a P-type transistor, for example, by a P-type thin film transistor, and the present invention can also be implemented, as shown in FIG. 7. FIG. 7 illustrates another embodiment in accordance with the present invention. Organic hair of the examples In the organic light emitting diode circuit 700 shown in FIG. 7, the transistor 214 has been modified to be implemented by a P-type transistor, and the gate of the transistor 214 is also coupled to scan. Signal Gn. In the remaining indications of Figure 7, the same components or signals are indicated as the same in Figure 2. The benefit of changing the transistor 214 to a P-type transistor is organic illumination. The diode pixel circuit 700 does not need to use the inverted signal XGn ' of the scanning signal Gn so that the inverted signal XGn can be omitted' and the organic light emitting diode circuit 700 can still follow the scanning signal Gn shown in FIG. The signal EM is enabled to operate with the signal timing of the display data VOLED. Third Embodiment: With the teachings of the first embodiment, those skilled in the art should know that 12 201137825 track 'even organic light-emitting diodes The transistors 202 and 204 in the circuit 200 are all modified to be implemented by a P-type transistor, for example, by a P-type thin germanium transistor, and the present invention can also be implemented, as shown in Fig. 8. Fig. 8 Illustrated according to another embodiment of the present invention In the organic light-emitting diode pixel circuit 800 shown in FIG. 8, the electric bodies 202 and 204 have been modified to be realized by a p-type transistor, and the transistor 2 ( The gates of ^ and 204 are also coupled to the inverted signal XGn of the scanning signal Gn. In the remaining indications of the figure, 'the same as the one shown in Fig. 2 is denoted by the same member or nickname. The transistor 202 is 204 is changed to a P-type transistor, and the organic light-emitting diode circuit 800 does not need to use the scanning signal Gn ', so that the scanning signal Gn can be omitted, and the organic light-emitting diode is The circuit 800 can still operate according to the signal timing of the inverted signal, the enable signal EM and the display data V0LED of the scan signal Gn shown in FIG. In another aspect, the transistors 2〇2, 2〇4, and 214 in the organic light-emitting diode pixel circuit 800 use the inverted signal XGn as a general scanning signal to use 0. The teachings of the first to third embodiments can be summarized as rules for the conduction timing of the transistors 202, 204, 208, and 214 in these embodiments. That is, regardless of whether the transistors 202, 204, 208, and 214 are implemented as N-powered crystals or as P-type transistors, the turn-on timing of the four transistors must conform to such a rule. The rule is as follows: during the pre-charging period p, the transistors 202, 204 and 208 each are turned on according to their gate signals, and the transistor 214 is turned off according to its gate signal; during the writing period w, The transistors 202 and 204 each are turned on according to their gate signals, and the transistors 208 and 212 are each turned off according to their gate signals; during the illumination period E, the electricity 13 201137825

The crystals 202 and 204 are each based on their gate signals. 2 ϊΒ _ _ 208 and 214 are each according to their gates; between W and after the precharge period P, the fourth embodiment:

By the teachings of the first embodiment to the third embodiment - the organic light emitting diode display device using the above organic light emitting diode pixel circuit

Line (as indicated by the label 942-1), multiple scan lines (as indicated by the symbol 942_2), multiple inverted signal lines (as indicated by the symbol 942-3), and multiple data lines (as indicated by the symbol 944) Wire 946 and a plurality of pixels (as indicated by numeral 948). In this example, 'each pixel 948 uses the circuit structure shown in the organic light-emitting diode pixel circuit 200 of FIG. 2, so that the same as the one shown in FIG. 2 in each pixel 948 is represented as The same component or signal. It is worth noting that in this example, the reference power supply voltage OVSS is the ground potential. As shown in Figure 9, the transistors in each pixel 948 are implemented as N-type transistors, for example, N A thin film transistor is used to achieve this. In addition, regarding the portion of the scan driving circuit 910, the mark EMn is indicated as the enable signal required for the nth column of pixels 948. The scanning signal required for the nth column 948 is shown. As for χ(}η, which is represented as the inverted signal of the scanning signal Gn required for the nth column 948. Among them, η is a natural number. The detailed connection relationship of the above components is shown in FIG. The above data driving circuit 920 is used to provide the display 201137825 data required for each pixel 948. As for the above scanning driving circuit 91, it can drive each column of pixels according to the signal timing shown in FIG. 948. Referring to FIG. 9 and FIG. 3 simultaneously, taking the nth column pixel 948 depicted in the display panel 940 as an example, the scan driving circuit 910 causes the scan signal Gn and the enable signal to be in the precharge period ρ. The high level is set, and the inverted signal XGn of the scan signal ^ is at a low level. In the writing period w, the scan driving circuit 910 causes the scanning signal Gn to be at a high level and inverts the scanning signal Gn. Both the signal XGn and the enable signal EMn are low-level. In addition, the scan drive circuit 910 causes the scan signal during the illumination period E.

Gn is at a low level, and the inversion signal XGn and the enable signal ® EMn of the scanning signal Gn are both at a high level. Since the display panel 940 adopts the circuit structure shown by the organic light emitting diode pixel circuit 200 of FIG. 2, the brightness of each pixel 948 is uniform, and each pixel 948 has a brightness reduction due to aging of the organic light emitting diode. The phenomenon can be compensated' to improve the appearance of the burn-in caused by the aging of the organic light-emitting diode. The fifth embodiment: • With the teachings of the fourth embodiment, those skilled in the art should know that each of the elements 948 in the display panel 940 can be replaced with the LED diode circuit of FIG. The circuit architecture shown in 700. In this way, the organic photodiode display device 900 can omit all the inverted signal lines (as indicated by the mark 9 4 2 - 3) and the scan driving circuit 91 does not need to have an inverted signal for outputting the scan signal. The function. 6th Embodiment: With the material of the fourth embodiment, those skilled in the art should know that 201137825 each of the display panels 940 can be replaced with the organic light-emitting diode of FIG. The circuit architecture shown in circuit 8〇〇. In this way, the organic light-emitting diode display device 900 can omit all the scanning lines (as indicated by the numeral 942-2), and the scanning driving circuit 910 does not need to have the function of outputting the scanning signals. By the teachings of the fourth embodiment to the sixth embodiment, the rules of the scan driving circuit 910 of these embodiments for turning on the transistors 202, 204, 208 and 214 of the respective elements 948 can be summarized. That is, regardless of whether the transistors 202, 204, 208, and 214 are implemented as N-type transistors or p-type transistors, the turn-on timing of the four transistors must conform to such a rule. Taking the n-th pixel 948 depicted in the display panel 94A as an example: the scan driving circuit 91 is configured to control the transistors 202, 204, and 208 of each cell 948 in the column during the pre-charging period, and Control the transistor 2 of each column 948 in this column to turn off. The scan driver circuit 910 is further configured to control the transistors 202 and 204 of each pixel 948 of the column to be turned on during the writing period w, and control each pixel 9 of the column to occupy the transistors 2〇8 and 214. In addition, the scan driving circuit is also used to turn off the transistors 2〇2 and 2〇4 of the column per pixel 948 during the light-emitting period e, and control the transistors 208 and 214 of the 7-denier 948 to be turned on. . Here, the writing period W is after the period P, and the light-emitting period E is after the writing period W. The right side of the invention is based on the fact that five transistors, a capacitor spot, are used to fabricate an organic light-emitting diode pixel circuit. The magnitude of the threshold voltage of the phosphor produced by the above-mentioned circuit characteristics is proportional to the magnitude of the current driven by the organic light-emitting diode and the voltage across the organic light-emitting diode itself. Therefore, the luminance of the organic light-emitting diode is independent of the threshold voltage of the driving transistor, and thus the luminance of each pixel can be made uniform. Further, even if the organic light-emitting diode ages, the voltage across the organic light-emitting diode increases, and the magnitude of the current passing through the organic light-emitting diode increases as the voltage rises. In other words, the magnitude of the current passing through the organic light-emitting diode increases as the organic light-emitting diode ages. Therefore, the phenomenon that the brightness of each of the halogens is lowered due to the aging of the organic light-emitting diode can be compensated by the increase in the magnitude of the above current, thereby improving the occurrence of the mark phenomenon caused by the aging of the organic light-emitting diode. While the invention has been described above by way of a preferred embodiment, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an organic light emitting diode display device.

2, FIG. 2 shows a display data, an enable signal, a scan signal, and an inverted electric organic light-emitting diode circuit of the organic light-emitting diode pixel according to an embodiment of the invention. Circuit state during charging. The organic light-emitting diode of the organic light-emitting diode is used in the circuit of the human body during the writing process. The light-emitting diode circuit is illuminated during the period of 201137825. FIG. 7 illustrates the organic light-emitting according to another embodiment of the present invention. Diode pixel circuit. FIG. 8 illustrates an organic light emitting diode pixel circuit in accordance with another embodiment of the present invention. Figure 9 is a schematic diagram of an organic light emitting diode display device in accordance with an embodiment of the present invention. [Description of main component symbols] 100, 900: organic light emitting diode display device • 110, 910: scan driving circuit 120, 920: data driving circuit 130, 930: power supply voltage supply circuit 140, 940: display panel 142, 942- 2: scan lines 144, 944: data lines 146, 946: wires 148, 948: halogen φ 148-1, 148-2: transistor 148-3: capacitor 148-4: organic light-emitting diodes 200, 700, 800: organic light-emitting diode halogen circuit 202, 204, 208, 210, 214: transistor 206: capacitor 212: organic light-emitting diode 942-1: EM signal line 942-3: reverse signal line 201137825 E: EM during illumination: enable signal

Gn : Scan signal OVDD : Power supply voltage OVSS : Reference power supply voltage P: Precharge period

Vdata : Display data W: Write period XGn : Reverse signal of scan signal Gn

Claims (1)

201137825 VII, the scope of application for patents: 1. An organic light-emitting diode halogen circuit comprising: - a first transistor, having a first gate two source / drain, the first source / source for receiving - display Data; a pole and a source/secret capacitor having a first end and a second end 'the first end is lightly connected to the second-second transistor' having a second gate, a third source/汲a fourth source/drain, the second gate is coupled to the second end of the capacitor; - the third transistor 'has a third gate, a fifth source / drain pole = two = five jobs - connects the (four) pole 'the sixth one to the fourth transistor, has a - fourth gate, - the first a seventh source/drain plate, the seventh source/汲_ is connected to the second source/record, the eighth source is coupled to the third source/drain; 4 the fifth transistor has a fifth interpole, - ninth source / no pole and ten source /; and pole, the ninth source / no pole face - the first - power voltage, the drain consumes the third source / no pole; and ', - organic light-emitting diode The body 'the anode and the cathode are respectively connected to the fourth source/no pole and the second power source voltage', and the third power source voltage is less than the first power source voltage. 2. The organic light-emitting diode device as described in claim </ RTI> wherein the first transistor, the third transistor and the fifth transistor are each based on a miscellaneous period The signal is turned on, and the fourth transistor is turned off according to the gate signal. During a writing period, the first=s body and the second transistor are respectively represented according to the gate signal thereof. Turning on, and the fourth electric body and the 5th fifth crystal are respectively turned off according to the interpole signal thereof, and the first transistor and the third transistor are respectively according to I S1 20 201137825 The gate signal is turned off, and the fourth transistor and the fifth transistor are each turned on according to the gate signal thereof, wherein the writing period is after the pre-charging period, and the light-emitting period is during the writing period. After the entry period. 3. The organic light emitting diode pixel circuit of claim 2, wherein the first transistor, the second transistor, the third transistor, the fourth a a body and the far end The fifth transistor is implemented by an N-type transistor, and the first gate and the third gate are coupled to a scan signal, wherein the fourth gate is coupled to the inverted signal of the scan signal, and the fourth gate is coupled to the inverted signal of the scan signal. The fifth gate is connected to the consistent signal, wherein the scan signal and the enable signal are both at a high level during the pre-charge period, and the inverted signal of the scan sfl is a low level at the write During the period, the scan signal is at a high level, and the inverted signal of the scan signal and the enable signal are both at a low level. During the illumination period, the scan signal is at a low level, and the scan signal is reversed. Both the phase signal and the enable signal are of high standard. 4. The organic light emitting diode halogen circuit of claim 2, wherein the first transistor, the second transistor, the third transistor, and the fifth transistor are both N-type The transistor is implemented by a p-type transistor, and the first gate, the third gate, and the fourth gate are both connected to a scan signal, and the first The five gates are coupled to the uniform signal, wherein the scan signal and the enable signal are both at a high level during the precharge period, and the scan signal is at a high level during the writing period, and the enablement The signal is at a low level. During the illumination period, the scan signal is at a low level and the enable signal is at a high level. 5. The organic light emitting diode pixel circuit of claim 2, wherein the second transistor, the fourth transistor, and the fifth transistor are implemented by an N-type transistor, and The first transistor and the third transistor are both implemented by a transistor, and the first gate, the third gate and the fourth gate are coupled to a scan signal, and the first The five gates are coupled with a uniform signal, wherein during the 21 201137825 precharge period, the scan signal is at a low level, and the enable signal is a high level. During the write period, the scan signal and the result are The signal can be at a low level, and the scanning signal and the enabling signal are both at a high level during the lighting period. 6. The organic light emitting diode halogen circuit according to claim 2, wherein the first transistor, the second transistor, the third transistor, the fourth transistor, and the fifth electrode The crystals are all realized by a thin film transistor. 7. An organic light emitting diode display device comprising: a display panel having a pixel circuit, the pixel circuit comprising: a first transistor having a first gate, a first source/drain a second source/drain, the first source/drain is adapted to receive a display data; a capacitor having a first end and a second end, the first end coupled to the second source/drain a second transistor having a second gate, a third source/drain and a fourth source/drain, the second gate coupled to the second end of the capacitor; a third transistor Having a third gate, a fifth source/drain, and a sixth source/drain, the fifth source/drain is coupled to the second gate, and the sixth source/drain is coupled to the first Three source/drain electrodes; φ a fourth transistor having a fourth gate, a seventh source/drain and an eighth source/drain, the seventh source/drain is coupled to the second source/ a drain, the eighth source/drain is coupled to the third source/drain; a fifth transistor having a fifth gate, a ninth source/drain, and a tenth source/drain Ninth source/dippole coupling a power source voltage, the tenth source/drain is coupled to the third source/drain; and an organic light emitting diode, wherein the anode and the cathode are respectively coupled to the fourth source/drain and a second power voltage, The second power supply voltage is less than the first power supply voltage; m 22 201137825 a bucker drive circuit 'to provide a scan drive circuit, _^, ^, beibei, and the gate and the fifth gate, the soil The first pole, the third closed pole, the fourth body, and the third transistor control the first-electro-crystal shutdown during the pre-charging period, and are used to control and write the '/day body conduction' The fourth transistor is turned on, and controls the first transistor to control the first transistor and the third transistor to control the fifth transistor to be turned off during the light-emitting period, and is also used in the fourth transistor The 'five electric 曰 the third transistor is turned off' and controlled After the electrical period, and Hi Ba is turned on, wherein the writing period is after the writing period during the pre-charging period. The money-emitting diode display device described in item 7 of the present invention provides a scanning driving circuit to provide a scan signal to the first two of the first phase of the antenna signal and the uniform energy signal to the fourth gate. In the pre-charging period, the scanning signal is inferior to the inversion of the enabling message, and in the writing j, the scanning information is clamped, and the scanning job is reversed. The phase signal and the monthly t* signal are at a low level. During the illumination period, the scanning signal is at a low level, and the inverted signal of the scanning signal and the enabling signal are both at a high level. The organic light emitting diode display device of claim 7, wherein the first transistor, the second transistor, the third transistor, and the fifth transistor are all N-type The transistor is implemented by a type of transistor, and the scan driving circuit provides a scan signal to the first gate, the third gate and the fourth gate, and provides a uniform The signal can be sent to the fifth gate ′, wherein during the pre-charging period, the scan signal and the enable signal are both in a position of 'the writing period' and the woman is marked as a high level, and能讯 m 23 201137825 =: quasi: during the illumination period, the scan signal is low, and so [2] The organic light emitting diode display device of the seventh aspect of the patent scope, the fourth transistor, the fourth transistor and the fifth transistor are all realized by an N-transistor crystal, and the The first transistor and the third transistor are both implemented by a transistor, and the scan driving circuit provides a scan signal to the first gate, the third gate and the fourth gate, and provides a consistent signal to the fifth gate 'where the scan signal is at a low level during the precharge period, and the enable signal is a high level during which the scan signal and the enable The signal is a low level, and the scanning signal and the enabling signal are both at a high level during the illuminating period. 11. The organic light emitting diode display device according to claim 7, wherein the first electric The crystal, the second transistor, the third transistor, the fourth transistor and the fifth transistor are all implemented by a thin film transistor. I Si 24 ·