CN101127194A - Positive type organic light emitting diode display - Google Patents
Positive type organic light emitting diode display Download PDFInfo
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- CN101127194A CN101127194A CNA2007101619447A CN200710161944A CN101127194A CN 101127194 A CN101127194 A CN 101127194A CN A2007101619447 A CNA2007101619447 A CN A2007101619447A CN 200710161944 A CN200710161944 A CN 200710161944A CN 101127194 A CN101127194 A CN 101127194A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to an active organic light emitting diode display, comprising an image elements array which is provided with a plurality of image elements, wherein every single image elements comprises a luminescence device, a driving device and a selector unit. The luminescence device comprises a first organic light emitting diode, a second organic light emitting diode and a third organic light emitting diode, wherein the organic light emitting diode is formed in the image elements in a superpositioned mode. The drive device is in coupling connection with the voltage source, receiving digital signal and driving the luminescence device according to the displayed data. A unit is chosen and the corresponding organic light emitting diode is chosen and connected according to a control signal. The utility model has the advantages that the opening ratio of the image elements is greatly improved and the color cast can be avoided.
Description
Technical field
The invention relates to a kind of display, particularly about a kind of positive type organic light emitting diode display.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) have that autoluminescence, driving voltage are low, power saving, reaction rate is fast, brightness is high, contrast is high, wide viewing angle, can full-colorization, frivolous and big (compared to the LCD) superperformance of etc.ing of operating temperature range, therefore be one of the most potential at present generally acknowledged emerging plane display technique.Traditional OLED pixel mostly is greatly and issues photo structure, and often thin film transistor (TFT) (TFT) and data conductor (data line) can become the obstacle that stops that light passes through, and make the OLED aperture ratio of pixels low excessively; If will make the brightness of demonstration reach predetermined value, then must impose bigger voltage to the OLED pixel, can make the life-span of OLED pixel lower thus again.Fig. 1 is the existing full-color pixel synoptic diagram of luminous OLED downwards.Pixel 11 comprises the first film transistor 12 (hereinafter to be referred as TFT1), organic red light light emitting diode 13, second thin film transistor (TFT) 14 (hereinafter to be referred as TFT2), organic green light light emitting diode 15, the 3rd thin film transistor (TFT) 16 (hereinafter to be referred as TFT3), organic blue light-emitting diode 17.Transistor T FT1, TFT2 and TFT3 drive organic red light light emitting diode 13, organic green light light emitting diode 15 and organic blue light-emitting diode 17 respectively.Can find that from scheming to go up us the shared area of the organic luminorphor of solid color is little, and the such pixel of general using, the aperture opening ratio of its solid color often is lower than 10%, and is easy to generate the situation of colour cast.
Summary of the invention
The invention provides a kind of active organic light-emitting display, it comprises a pel array, has a plurality of pixels, and wherein each pixel comprises a light-emitting device, a drive unit and a selected cell.Light-emitting device comprises first Organic Light Emitting Diode, second Organic Light Emitting Diode and the 3rd Organic Light Emitting Diode, and wherein said these Organic Light Emitting Diodes are formed in the described pixel in stacking mode.Described drive unit couples a voltage source, receive an activation signal and according to a video data to drive described light-emitting device.Described selected cell according to a control signal in order to select and the conducting corresponding organic light emitting diode.
The present invention provides a kind of active organic light-emitting display in addition, and it comprises a gate driver circuit, a data drive circuit and a pel array.Gate driver circuit is in order to output control signal and enable signal.Data drive circuit is in order to export a video data.Described pel array has a plurality of pixels, and wherein each pixel comprises a light-emitting device, a drive unit and a selected cell.Described light-emitting device comprises one first Organic Light Emitting Diode, one second Organic Light Emitting Diode and one the 3rd Organic Light Emitting Diode, and wherein said these Organic Light Emitting Diodes form in stacking mode for utilizing manufacturing process.Described drive unit couples a voltage source, receive described enable signal and according to a video data to drive corresponding organic light emitting diode in the described light-emitting device.Described selected cell comes in order to select and the conducting corresponding organic light emitting diode according to described control signal.
The present invention utilizes the stacking type Organic Light Emitting Diode can make that aperture ratio of pixels significantly promotes, and can avoid producing the situation of colour cast.
Description of drawings
Fig. 1 is the existing synoptic diagram that utilizes the full-color pixel of luminous OLED downwards.
Fig. 2 is the synoptic diagram that utilizes the formed pixel of stacking type (stacked) Organic Light Emitting Diode.
Fig. 3 is the circuit diagram according to an embodiment of a pixel of the present invention.
Fig. 4 is the circuit diagram according to another embodiment of a pixel of the present invention.
Fig. 5 is the circuit diagram according to another embodiment of a pixel of the present invention.
Fig. 6 is the time sequential routine synoptic diagram of the pixel-driving circuit of Fig. 5.
Fig. 7 is the circuit diagram according to another embodiment of a pixel of the present invention.
Fig. 8 is the time sequential routine synoptic diagram of the pixel-driving circuit of Fig. 7.
Fig. 9 is the block schematic diagram according to an embodiment of a display panel of the present invention.
Drawing reference numeral
11,21～pixel;
33,43,53,73～light-emitting device;
12,22～the first film transistor;
13,23,34,44,54,74～organic red light light emitting diode;
14,24～the second thin film transistor (TFT)s;
15,25,35,45,55,75～organic red light light emitting diode;
16,26～the 3rd thin film transistor (TFT)s;
17,27,36,46,56,76～organic red light light emitting diode;
31,41,51,71～drive unit;
32,42,52,72～selected cell;
N1, N2, N3, N4～end points;
Data～video data;
D
R～ruddiness video data;
D
G～green glow video data;
D
B～blue light video data;
C, C
R, C
G, C
B～control signal;
S
R, S
G, S
B～selection signal;
T1, T2, T3, t～time cycle;
SW1, SW2, SW3～switch;
92～gate driver circuit;
93～data drive circuit;
96～selection circuit;
95～pixel;
97～light-emitting device.
Embodiment
Fig. 2 is the synoptic diagram that utilizes the formed pixel of stacking type (stacked) Organic Light Emitting Diode.Organic red light light emitting diode 23, organic green light light emitting diode 25 and organic blue light-emitting diode 27 form a kind of framework of stacking type.Except that comprising the stacking type framework, still comprise the first film transistor 12 (hereinafter to be referred as TFT1), second thin film transistor (TFT) 14 (hereinafter to be referred as TFT2) and the 3rd thin film transistor (TFT) 16 (hereinafter to be referred as TFT3) in the pixel 21.Transistor T FT1, TFT2 and TFT3 drive organic red light light emitting diode 23, organic green light light emitting diode 25 and organic blue light-emitting diode 27 respectively, and can be positioned at identical layer with organic red light light emitting diode 23, organic green light light emitting diode 25 and organic blue light-emitting diode 27 respectively.Utilize the stacking type Organic Light Emitting Diode can make that aperture ratio of pixels significantly promotes, and can avoid producing the situation of colour cast.
Fig. 3 is the circuit diagram according to an embodiment of a pixel of the present invention.Pixel comprises drive unit 31 and selected cell 32, in order to driven for emitting lights device 33.Light-emitting device 33 comprises organic red light-emitting diode 34, organic green light light emitting diode 35 and organic blue light-emitting diode 36.Drive unit 31 couples voltage source V
DD, in order to video data Data is sent to corresponding organic light emitting diode by selected cell 32 with control signal C, wherein video data Data can be the GTG video data, makes the brightness that diode displaying is different.In one embodiment, control signal C comprises first control signal, second control signal and the 3rd control signal.When selecting unit 32 to receive first control signal, selected cell control end points N2 and end points N4 make video data Data show by organic red light light emitting diode 34.When selecting unit 32 to receive second control signal, selected cell control end points N1 and end points N2, and N3 and N4 make video data Data show by organic green light light emitting diode 35.When selecting unit 32 to receive the 3rd control signal, selected cell control end points N1 and end points N3 make video data Data show by organic blue light-emitting diode 36.Utilize above-mentioned operating mechanism, video data Data just can be shown by corresponding organic light emitting diode.In another embodiment, video data Data may be voltage signal or current signal, and controls the display brightness of corresponding organic light emitting diode by the amplitude of adjusting voltage signal and current signal.
Fig. 4 is the circuit diagram according to another embodiment of a pixel of the present invention.Pixel comprises drive unit 41 and selected cell 42, in order to driven for emitting lights device 43.Light-emitting device 43 comprises organic red light-emitting diode 44, organic green light light emitting diode 45 and organic blue light-emitting diode 46.Drive unit 41 couples voltage source V
DD, in order to video data Data is passed through selected cell 42 and control signal C
R, C
GAnd C
BBe sent to corresponding organic light emitting diode, wherein video data Data may be the GTG video data, makes the brightness that diode displaying is different.Control signal C
R, C
GAnd C
BCan be according to video data Data be to be sent to that Organic Light Emitting Diode, make the not conducting of switch of corresponding described Organic Light Emitting Diode.For instance, when video data Data is in the time of will being sent to organic red light light emitting diode 44, control signal C
RMake switch SW 1 disconnect (this moment, switch SW 2 was still conducting with SW3), video data Data is sent to organic red light light emitting diode 44 via end points N1 and shows.When video data Data is in the time of will being sent to organic green light light emitting diode 45, control signal C
GMake switch SW 2 disconnect (this moment, switch SW 1 was still conducting with SW3), video data Data is sent to organic green light light emitting diode 45 via end points N2 and shows.When video data Data is in the time of will being sent to organic blue light-emitting diode 46, control signal C
BMake switch SW 3 disconnect (this moment, switch SW 1 was still conducting with SW2), video data Data is sent to organic blue light-emitting diode 46 via end points N3 and shows.
Utilize above-mentioned operating mechanism, video data Data just can be shown by corresponding organic light emitting diode.In another embodiment, video data Data may be voltage signal or current signal, and controls the display brightness of corresponding organic light emitting diode by the amplitude of adjusting voltage signal and current signal.In another embodiment, video data Data may be pulse width modulation signal (Pulse WidthModulation signal, PWM signal), can control the luminous intensity of Organic Light Emitting Diode by the pulse width of adjusting pwm signal.
Fig. 5 is the circuit diagram according to another embodiment of a pixel of the present invention.Pixel-driving circuit comprises drive unit 51 and selected cell 52, in order to driven for emitting lights device 53.Light-emitting device 53 comprises organic red light-emitting diode 54, organic green light light emitting diode 55 and organic blue light-emitting diode 56.Drive unit 51 is in order to pass through selected cell 52 and control signal C with video data Data
R, C
GAnd C
BBe sent to corresponding organic light emitting diode, wherein video data Data may be a GTG video data, makes the brightness that diode displaying is different.Drive unit 51 comprises the first transistor T1 and transistor seconds T2.The first transistor T1 has control end, input end and output terminal, and control end receives enable signal S, and input end then receives video data Data.Transistor seconds T2 has control end, input end and output terminal, and wherein control end couples the output terminal of the first transistor T1, and input end couples voltage source V
DDWhen transistor T 1 receives enable signal S and during conducting, video data Data can be sent to the control end of transistor seconds T2, the conducting degree of control transistor seconds T2 is so as to the size of current of control by transistor seconds T2 inflow light-emitting device 53, in order to the brightness of control light-emitting device 53.Selected cell 52 comprises the 3rd transistor T 3, the 4th transistor T 4 and the 5th transistor T 5.Transistor T 3, T4 and T5 are set to conducting, so control signal C
R, C
GAnd C
BInitially be to be set to low voltage signal.In another embodiment, transistor T 3, T4 and T5 can be nmos pass transistor.Control signal C
R, C
GAnd C
BCan be according to video data Data be to be sent to that Organic Light Emitting Diode, make the not conducting of transistor of corresponding described Organic Light Emitting Diode.For instance, when video data Data is in the time of will being sent to organic red light light emitting diode 54, control signal C
RBe changed and be high voltage signal, make transistor T 3 not conductings (this moment, transistor T 4 was still conducting with T5), video data Data be sent to organic red light light emitting diode 54 and show via end points N1.When video data Data is in the time of will being sent to organic green light light emitting diode 55, control signal C
GBe changed and be high voltage signal, make transistor T 4 not conductings (this moment, transistor T 3 was still conducting with T5), video data Data be sent to organic green light light emitting diode 55 and show via end points N2.When video data Data is in the time of will being sent to organic blue light-emitting diode 56, control signal C
BBe changed and be high voltage signal, make transistor T 5 not conductings (this moment, transistor T 3 was still conducting with T4), video data Data be sent to organic blue light-emitting diode 56 and show via end points N3.
Utilize above-mentioned operating mechanism, video data Data is just by control signal C
R, C
GAnd C
BMake corresponding organic light emitting diode receive described video data Data and show.In another embodiment, video data Data can be voltage signal or current signal, and controls the display brightness of corresponding organic light emitting diode by the amplitude of adjusting voltage signal and current signal.In another embodiment, video data Data can be pulse width modulation signal (Pulse Width Modulation signal, PWM signal), can control the luminous intensity of Organic Light Emitting Diode by the pulse width of adjusting pwm signal.
Fig. 6 is the time sequential routine synoptic diagram of the pixel-driving circuit of Fig. 5.When period of time T 1, control signal C
RBe changed and be high voltage signal, make transistor T 3 not conductings, and enable signal S is changed and is low voltage signal, make video data Data be transferred into organic red light light emitting diode 54 and show.When period of time T 2, control signal C
GBe changed and be high voltage signal, make transistor T 4 not conductings, and enable signal S is changed and is low voltage signal, make video data Data be transferred into organic green light light emitting diode 55 and show.When period of time T 3, control signal C
BBe changed and be high voltage signal, make transistor T 5 not conductings, and enable signal S is changed and is low voltage signal, make video data Data be transferred into organic blue light-emitting diode 56 and show.Can be found on figure, between period of time T 1 and the period of time T 2, and once-existing cycle t between period of time T 2 and the period of time T 3, this is that two light emitting diodes are simultaneously luminous to make picture thicken or produce colour cast in order to avoid.
Fig. 7 is the circuit diagram according to another embodiment of a pixel of the present invention.Be in the video data of present embodiment different with Fig. 5 is divided into ruddiness video data D
R, green glow video data D
GAnd blue light video data D
B, and by enable signal S
R, S
GAnd S
BDecide output ruddiness video data D
R, green glow video data D
GAnd blue light video data D
BTo the time of corresponding light emitting diode.Drive unit 71 comprises transistor T 1, T2, T6, T7, T8 and T9.Transistor T 1 has control end, input end and output terminal, and wherein control end receives enable signal S
R, input end then receives video data D
RTransistor T 2 has a control end, input end and output terminal, and wherein control end couples the output terminal of transistor T 1, and input end then couples voltage source V
DDTransistor T 6 has control end, input end and output terminal, and wherein control end receives enable signal S
G, input end then receives video data D
GTransistor T 7 has control end, input end and output terminal, and wherein control end couples the output terminal of transistor T 6, and input end then couples high voltage source V
DDTransistor T 8 has control end, input end and output terminal, and control end receives enable signal S
B, input end then receives video data D
BTransistor T 9 has control end, input end and output terminal, and wherein control end couples the output terminal of transistor T 8, and input end couples voltage source V
DD
Selected cell 72 comprises transistor T 3, T4 and T5.In the present embodiment, transistor T 3, T4 and T5 are the PMOS transistors, so control signal C
R, C
GAnd C
BAdopt low voltage signal.In another embodiment, transistor T 3, T4 and T5 can be nmos pass transistor, and control signal C
R, C
GAnd C
BAdopt high voltage signal.Control signal C
R, C
GAnd C
BCan be according to video data Data be to be sent to that Organic Light Emitting Diode, make the not conducting of transistor of corresponding described Organic Light Emitting Diode.In one embodiment, enable signal S
R, S
GAnd S
BWith control signal C
R, C
GAnd C
BInversion signal each other.For instance, when video data Data is in the time of will being sent to organic red light light emitting diode 74, control signal C
RBe changed and be high voltage signal, make transistor T 3 not conductings (this moment, transistor T 4 was still conducting with T5), video data Data be sent to organic red light light emitting diode 74 and show via end points N1.When video data Data is in the time of will being sent to organic green light light emitting diode 75, control signal C
GBe changed and be high voltage signal, make transistor T 4 not conductings (this moment, transistor T 3 was still conducting with T5), video data Data be sent to organic green light light emitting diode 75 and show via end points N2.When video data Data is in the time of will being sent to organic blue light-emitting diode 76, control signal C
BBe changed and be high voltage signal, make transistor T 5 not conductings (this moment, transistor T 3 was still conducting with T4), video data Data be sent to organic blue light-emitting diode 76 and show via end points N3.
Fig. 8 is the time sequential routine synoptic diagram of the pixel-driving circuit of Fig. 7.When period of time T 1, control signal C
RBe changed and be high voltage signal, make transistor T 3 not conductings, and enable signal S is changed and is low voltage signal, make video data Data be transferred into organic red light light emitting diode 74 and show.When period of time T 2, control signal C
GBe changed and be high voltage signal, make transistor T 4 not conductings, and enable signal S is changed and is low voltage signal, make video data Data be transferred into organic green light light emitting diode 75 and show.When period of time T 3, control signal C
BBe changed and be high voltage signal, make transistor T 5 not conductings, and enable signal S is changed and is low voltage signal, make video data Data be transferred into organic blue light-emitting diode 76 and show.On figure, can be found to, between period of time T 1 and the period of time T 2, and once-existing cycle t between period of time T 2 and the period of time T 3, this is for being avoided the simultaneously luminous fuzzy or colour cast that makes that picture becomes of two light emitting diodes.By the sequential chart of Fig. 8 as can be known, the display cycle T of a pixel comprises the time cycle t of period of time T 1, T2, T3 and 2 times.Therefore, if the display cycle T of a pixel is 1/60 second, then the demonstration time of each period of time T 1, T2, T3 just was slightly less than 1/180 second.
Fig. 9 is the block schematic diagram according to an embodiment of a display panel of the present invention.Display panel 91 comprises data drive circuit 93, gate driver circuit 92 and pel array 94.Comprise a plurality of pixels in the pel array 94, as pixel 95, be arranged in the form of matrix, wherein each pixel comprises a selection circuit and a light-emitting device.The circuit of the pixel in the pel array 94 and type of drive are introduced in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8 in detail.In the present embodiment, each light-emitting device couples one and selects circuit, as select circuit 96, selected cell to receive the video data of data drive circuit 93 transmission and the control signal that gate driver circuit 92 is exported, make the light-emitting device that couples show corresponding video data.In the present embodiment, select circuit to comprise as drive unit among Fig. 5 51 and selected cell 52.Gate driver circuit 92 is in order to produce and to transmit control signal and enable signal, as enable signal S, control signal C
R, C
GAnd C
B
Though the present invention discloses as above with specific embodiment; right its only is explanation technology contents of the present invention; and be not with narrow sense of the present invention be defined in described embodiment; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; can do a little change and retouching, so protection scope of the present invention is worked as with being as the criterion that claim was defined.
Claims (26)
1. positive type organic light emitting diode display, described display comprises:
One pel array has a plurality of pixels, and wherein each pixel comprises:
One light-emitting device comprises first Organic Light Emitting Diode, second Organic Light Emitting Diode and the 3rd Organic Light Emitting Diode, and wherein said these Organic Light Emitting Diodes are formed in the described pixel in stacking mode;
One drive unit couples a voltage source, receive an activation signal and according to a video data to drive described light-emitting device; And
One selected cell, according to a control signal in order to select and the conducting corresponding organic light emitting diode.
2. positive type organic light emitting diode display as claimed in claim 1, wherein said selected cell comprises first switch, second switch and the 3rd switch, described first Organic Light Emitting Diode respectively in parallel, described second Organic Light Emitting Diode and described the 3rd Organic Light Emitting Diode.
3. positive type organic light emitting diode display as claimed in claim 2, wherein said control signal comprises first control signal, second control signal and the 3rd control signal, controls described first switch, described second switch and described the 3rd switch respectively.
4. positive type organic light emitting diode display as claimed in claim 3, wherein said first control signal, described second control signal and described the 3rd control signal mode with time division multiplexing in a display cycle is distinguished described first switch of conducting, described second switch and described the 3rd switch.
5. positive type organic light emitting diode display as claimed in claim 2, wherein said first switch is a first transistor, have first control end, first input end and first output terminal, wherein said first control end is in order to receive described first control signal, described first input end couples a first anode end of described first Organic Light Emitting Diode, and described first output terminal couples one first cathode terminal of described first Organic Light Emitting Diode.
6. positive type organic light emitting diode display as claimed in claim 2, wherein said second switch is a transistor seconds, have second control end, second input end and second output terminal, wherein said second control end is in order to receive described second control signal, described second input end couples a second anode end of described second Organic Light Emitting Diode, and described second output terminal couples one second cathode terminal of described second Organic Light Emitting Diode.
7. positive type organic light emitting diode display as claimed in claim 2, wherein said the 3rd switch is a transistor, have the 3rd control end, the 3rd input end and the 3rd output terminal, wherein said the 3rd control end is in order to receive described the 3rd control signal, described the 3rd input end couples a third anode end of described the 3rd Organic Light Emitting Diode, and described the 3rd output terminal couples one the 3rd cathode terminal of described the 3rd Organic Light Emitting Diode.
8. positive type organic light emitting diode display as claimed in claim 1, wherein said first Organic Light Emitting Diode, described second Organic Light Emitting Diode and described the 3rd Organic Light Emitting Diode are respectively a ruddiness Organic Light Emitting Diode, a green glow Organic Light Emitting Diode and a blue light Organic Light Emitting Diode.
9. positive type organic light emitting diode display as claimed in claim 1, wherein said video data are a luma data, in order to control the luminous intensity of described light-emitting device.
10. positive type organic light emitting diode display as claimed in claim 1, wherein said video data comprise first video data, second video data and the 3rd video data.
11. positive type organic light emitting diode display as claimed in claim 10, wherein said drive unit comprises first driver element, second driver element and the 3rd driver element, respectively according to described first video data, described second video data and described the 3rd video data to drive described light-emitting device.
12. positive type organic light emitting diode display as claimed in claim 11, wherein each driver element comprises:
One the first transistor has first control end, first input end and first output terminal, and wherein said first control end receives one and selects signal, and in order to control the conducting of described the first transistor, described first input end receives described video data;
One storage unit couples described first output terminal; And
One transistor seconds, have second control end, second input end and second output terminal, wherein said second control end couples first output terminal of described the first transistor, and described second input end couples described high voltage source, and described second output terminal couples described light-emitting device.
13. positive type organic light emitting diode display as claimed in claim 12, wherein said the first transistor and described transistor seconds are thin film transistor (TFT).
14. positive type organic light emitting diode display as claimed in claim 10, wherein said first driver element, described second driver element and described the 3rd driver element mode with time division multiplexing in a display cycle is sent to described light-emitting device with described first video data, described second video data and described the 3rd video data respectively.
15. positive type organic light emitting diode display as claimed in claim 1, wherein said drive unit are controlled by an activation signal, and described drive unit comprises:
One the first transistor has first control end, first input end and first output terminal, and wherein said first control end receives one and selects signal, and in order to control the conducting of described the first transistor, described first input end receives described video data;
One storage unit couples described first output terminal; And
One transistor seconds, have second control end, second input end and second output terminal, wherein said second control end couples first output terminal of described the first transistor, and described second input end couples described high voltage source, and described second output terminal couples described light-emitting device.
16. a positive type organic light emitting diode display, described display comprises:
One gate driver circuit is in order to export a control signal and an activation signal;
One data drive circuit is in order to export a video data; And
One pel array has a plurality of pixels, and wherein each pixel comprises:
One light-emitting device comprises first Organic Light Emitting Diode, second Organic Light Emitting Diode and the 3rd Organic Light Emitting Diode, and wherein said these Organic Light Emitting Diodes are formed in the pixel for utilizing stacking mode;
One drive unit couples a voltage source, receive described enable signal and according to a described video data to drive corresponding organic light emitting diode in the described light-emitting device; And
One selected cell, according to described control signal in order to select and the conducting corresponding organic light emitting diode.
17. positive type organic light emitting diode display as claimed in claim 16, wherein said drive unit comprise first driver element, second driver element and the 3rd driver element.
18. positive type organic light emitting diode display as claimed in claim 17, wherein each driver element comprises:
One the first transistor, have first control end, first input end and first output terminal, wherein said first control end receives described enable signal, and in order to control the conducting of described the first transistor, described first input end receives described video data;
One storage unit couples described first output terminal; And
One transistor seconds, have second control end, second input end and second output terminal, wherein said second control end couples first output terminal of described the first transistor, described second input end couples a voltage source, described second output terminal couples described light-emitting device, and described transistor seconds can be according to the flow through size of current of described light-emitting device of described video data decision.
19. described first driver element of positive type organic light emitting diode display as claimed in claim 16, wherein said enable signal activation in regular turn in a display cycle, described second driver element and described the 3rd driver element.
20. positive type organic light emitting diode display as claimed in claim 16, wherein said selected cell comprises first switch, second switch and the 3rd switch, described first Organic Light Emitting Diode respectively in parallel, described second Organic Light Emitting Diode and described the 3rd Organic Light Emitting Diode.
21. positive type organic light emitting diode display as claimed in claim 20, wherein said control signal is according to described video data, described first switch of different time point conductings in a display cycle, described second switch and described the 3rd switch.
22. positive type organic light emitting diode display as claimed in claim 16, wherein said video data comprises first video data, second video data and the 3rd video data, is sent to described light-emitting device by described first driver element in the described drive unit, described second driver element and described the 3rd driver element respectively.
23. positive type organic light emitting diode display as claimed in claim 16, wherein said first Organic Light Emitting Diode, described second Organic Light Emitting Diode and described the 3rd Organic Light Emitting Diode are respectively a ruddiness Organic Light Emitting Diode, a green glow Organic Light Emitting Diode and a blue light Organic Light Emitting Diode.
24. positive type organic light emitting diode display as claimed in claim 18, wherein said the first transistor and described transistor seconds are thin film transistor (TFT).
25. positive type organic light emitting diode display as claimed in claim 16, wherein said video data are a luma data, in order to control the luminous intensity of described light-emitting device.
26. positive type organic light emitting diode display as claimed in claim 16, wherein said drive unit are controlled by an activation signal, and described drive unit comprises:
One the first transistor has first control end, first input end and first output terminal, and wherein said first control end receives one and selects signal, and in order to control the conducting of described the first transistor, described first input end receives described video data;
One storage unit couples described first output terminal; And
One transistor seconds, have second control end, second input end and second output terminal, wherein said second control end couples first output terminal of described the first transistor, and described second input end couples described high voltage source, and described second output terminal couples described light-emitting device.
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|---|---|---|---|
| CN2007101619447A CN101127194B (en) | 2007-09-26 | 2007-09-26 | Positive type organic light emitting diode display |
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|---|---|---|---|
| CN2007101619447A CN101127194B (en) | 2007-09-26 | 2007-09-26 | Positive type organic light emitting diode display |
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| CN101127194A true CN101127194A (en) | 2008-02-20 |
| CN101127194B CN101127194B (en) | 2011-05-04 |
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| CN (1) | CN101127194B (en) |
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| CN101572978B (en) * | 2008-04-29 | 2013-08-21 | 联咏科技股份有限公司 | Light emitting diode driving module |
| CN104795026A (en) * | 2015-05-13 | 2015-07-22 | 京东方科技集团股份有限公司 | Driving circuit of full-color organic light emitting diode pixel and driving method thereof |
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| CN110033730A (en) * | 2018-04-18 | 2019-07-19 | 友达光电股份有限公司 | Combined type drives display panel |
| CN110033731A (en) * | 2018-04-18 | 2019-07-19 | 友达光电股份有限公司 | Combined type drives display panel |
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| CN110942749A (en) * | 2019-12-04 | 2020-03-31 | 深圳市华星光电半导体显示技术有限公司 | Pixel driving circuit, driving method thereof and display panel applied to pixel driving circuit |
| CN111489687A (en) * | 2020-04-24 | 2020-08-04 | 厦门天马微电子有限公司 | Pixel driving circuit, display panel, display device and driving method |
| CN112967680A (en) * | 2021-03-18 | 2021-06-15 | 合肥京东方卓印科技有限公司 | Pixel structure, driving method thereof and display substrate |
| WO2021190182A1 (en) * | 2020-03-23 | 2021-09-30 | 京东方科技集团股份有限公司 | Pixel drive circuit, drive circuit for display panel, and display device |
| CN113539170A (en) * | 2021-07-12 | 2021-10-22 | 京东方科技集团股份有限公司 | Pixel driving circuit, driving method thereof, display substrate and display device |
| WO2022160440A1 (en) * | 2021-01-26 | 2022-08-04 | 京东方科技集团股份有限公司 | Display apparatus, display panel and manufacturing method therefor, and driving circuit and driving method therefor |
| CN117456912A (en) * | 2023-12-25 | 2024-01-26 | 禹创半导体(深圳)有限公司 | Miniature LED digital data driving circuit |
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| CN101572978B (en) * | 2008-04-29 | 2013-08-21 | 联咏科技股份有限公司 | Light emitting diode driving module |
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| WO2016106819A1 (en) * | 2014-12-31 | 2016-07-07 | 深圳市华星光电技术有限公司 | Display panel and drive circuit therefor |
| GB2550507A (en) * | 2014-12-31 | 2017-11-22 | Shenzhen China Star Optoelect | Display panel and drive circuit therefor |
| EA033896B1 (en) * | 2014-12-31 | 2019-12-06 | Шэньчжэнь Чайна Стар Оптоэлектроникс Текнолоджи Ко., Лтд. | Display panel and drive circuit therefor |
| US10102805B2 (en) | 2015-05-13 | 2018-10-16 | Boe Technology Group Co., Ltd. | Driving circuit for full-color organic light-emitting diode pixel and driving method of the driving circuit |
| CN104795026A (en) * | 2015-05-13 | 2015-07-22 | 京东方科技集团股份有限公司 | Driving circuit of full-color organic light emitting diode pixel and driving method thereof |
| CN110033731A (en) * | 2018-04-18 | 2019-07-19 | 友达光电股份有限公司 | Combined type drives display panel |
| CN110033730A (en) * | 2018-04-18 | 2019-07-19 | 友达光电股份有限公司 | Combined type drives display panel |
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| US11508298B2 (en) | 2018-05-31 | 2022-11-22 | Beijing Boe Technology Development Co., Ltd. | Display panel and driving method thereof and display device |
| CN110428778A (en) * | 2019-08-14 | 2019-11-08 | 京东方科技集团股份有限公司 | Pixel circuit and its driving method and display panel |
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| CN111489687B (en) * | 2020-04-24 | 2021-08-06 | 厦门天马微电子有限公司 | Pixel driving circuit, display panel, display device and driving method |
| CN111489687A (en) * | 2020-04-24 | 2020-08-04 | 厦门天马微电子有限公司 | Pixel driving circuit, display panel, display device and driving method |
| WO2022160440A1 (en) * | 2021-01-26 | 2022-08-04 | 京东方科技集团股份有限公司 | Display apparatus, display panel and manufacturing method therefor, and driving circuit and driving method therefor |
| CN115485849A (en) * | 2021-01-26 | 2022-12-16 | 京东方科技集团股份有限公司 | Display device, display panel and manufacturing method thereof, driving circuit and driving method |
| CN112967680A (en) * | 2021-03-18 | 2021-06-15 | 合肥京东方卓印科技有限公司 | Pixel structure, driving method thereof and display substrate |
| CN113539170A (en) * | 2021-07-12 | 2021-10-22 | 京东方科技集团股份有限公司 | Pixel driving circuit, driving method thereof, display substrate and display device |
| CN117456912A (en) * | 2023-12-25 | 2024-01-26 | 禹创半导体(深圳)有限公司 | Miniature LED digital data driving circuit |
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