CN108665854A - Control signal drive circuit and driving method and pixel circuit drive method - Google Patents

Control signal drive circuit and driving method and pixel circuit drive method Download PDF

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Publication number
CN108665854A
CN108665854A CN201710189258.4A CN201710189258A CN108665854A CN 108665854 A CN108665854 A CN 108665854A CN 201710189258 A CN201710189258 A CN 201710189258A CN 108665854 A CN108665854 A CN 108665854A
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CN
China
Prior art keywords
transistor
control signal
signal
electrode
drive circuit
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CN201710189258.4A
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Chinese (zh)
Inventor
胡思明
杨楠
朱晖
宋艳芹
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昆山工研院新型平板显示技术中心有限公司
昆山国显光电有限公司
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Priority to CN201710189258.4A priority Critical patent/CN108665854A/en
Publication of CN108665854A publication Critical patent/CN108665854A/en

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266Details of drivers for scan electrodes

Abstract

A kind of control signal drive circuit of present invention offer and driving method and pixel circuit drive method, the control signal drive circuit includes the first transistor to the 6th transistor and the first capacitance, wherein, external circuit provides the first clock signal, second clock signal, high power supply voltage, low supply voltage and input signal, and final output controls signal and outputs signal to the control signal drive circuit;The structure of the control signal drive circuit is simple, the output that control signal is realized using a small amount of transistor and capacitance, is convenient for integrated realization, is conducive to the yield for improving screen body, and the operation is stable of the driving circuit improves the output stability of control signal.

Description

Control signal drive circuit and driving method and pixel circuit drive method

Technical field

The present invention relates to plane display fields, and in particular to a kind of control signal drive circuit and driving method and pixel Circuit drive method.

Background technology

Organic light emitting display (Organic Light Emitting Display, OLED) can be divided into nothing in a driving manner Source (Passive Matrix, PMOLED) and active (Active Matrix, AMOLED).And active organic electroluminescent display device part (AMOLED), that is, thin film transistor (TFT) (Thin Film Transistor, TFT) collocation capacitance (Capacitor) is utilized to store letter Number, to control the intensity gray scale performance of OLED.Compared to present mainstream flat panel display Thin Film Transistor-LCD (TFT-LCD), displayer has many advantages, such as high contrast, wide viewing angle, low-power consumption, thinner.

Different pixel circuits needs different driver' s timing signals, such as 2T1C (2 in conventional organic light emitting display 1 capacitance of thin film transistor (TFT)) pixel circuit, it is only necessary to scanning (Scan) drive signal, and general pixel compensation circuit claim Make mTnC (containing m thin film transistor (TFT), n capacitance) pixel circuit, then needs several scanning drive signals and several controls Signal processed is worked in coordination by certain sequential, to make up the defect of technique, improves the consistency that screen body is shown.

The existing driving circuit structure for generating control signal is all more complicated, as shown in Figure 1, it is in the prior art Control the structural schematic diagram of signal drive circuit, including 15 thin film transistor (TFT)s (M1 to M11 and M44, M55, M88 and M99) With 5 capacitances (C1 to C5), and it also requires multiple signals, such as input signal IN, high power supply voltage signal VGH, low power supply Voltage signal VGL, three clock signals CK1, CK2 and CK3, reset signal Reset, final output controls signal and output is believed Number OUT1, input signals of the OUT1 as next stage drive circuit.

The driving circuit it is complicated, the thin film transistor (TFT) of use and the quantity of capacitance are relatively more, and need Input signal also compares more, it is easy to cause the unstable of output signal.And if the driving circuit is integrated in organic hair In the screen body of optical display unit, the area of occupancy screen body that can be excessive influences the yield for shielding body output, and do not utilize the section of cost About.

Therefore, it is this field that a kind of control signal drive circuit simple in structure of design provides control signal to pixel circuit The technical issues of technical staff's urgent need to resolve.

Invention content

The purpose of the present invention is to provide a kind of control signal drive circuits and driving method and pixel circuit driving side Method, simplify control signal drive circuit provide stable control signal.

To achieve the above object, the present invention provides a kind of control signal drive circuit, including the first transistor is to the 6th crystalline substance Body pipe and the first capacitance, wherein

The grid of the grid of the first transistor, the grid of third transistor and the 4th transistor is connected to one first The first electrode of clock signal terminal, the first transistor is connected to input signal end, the second electrode of the first transistor It is connected to a first node with the grid of second transistor;

The second electrode of the second transistor is connected to a second clock signal end;First electricity of the second transistor Pole, the first electrode of the third transistor, the grid of the 5th transistor and the 6th transistor grid be connected to one second section Point;

The second electrode of the third transistor, the second electrode of the 5th transistor and the 6th transistor Second electrode is connected to one first power supply voltage signal end;

The first electrode of 4th transistor is connected to a second source voltage signal end;The of 4th transistor Two electrodes are connected with the first electrode of the 5th transistor;

The first electrode of 6th transistor is connected to a control signal end;

First capacitance connection is between the second node and first node.

Optionally, further include the 7th transistor, the grid of the 7th transistor and the second electricity of the 4th transistor Pole is connected, and the first electrode of the 7th transistor is connected to the second source voltage signal end, the 7th transistor Second electrode be connected to the control signal end.

Optionally, further include the second capacitance, the second electrode phase of one end of second capacitance and the 4th transistor Connection, the other end of second capacitance are connected to the control signal end.

Optionally, the second node is connected to output signal end.

Optionally, the first electrode is source electrode, and the second electrode is drain electrode;Alternatively, the first electrode is drain electrode, The second electrode is source electrode.

Optionally, the driver' s timing of the driving circuit includes first stage, second stage and phase III;In the first rank Section, input signal are low level with the first clock signal, and second clock signal is high level;In second stage, the input letter Number with first clock signal be high level, the second clock signal be low level, export a high level control signal An and low level output signal;In the phase III, first clock signal be low level, the input signal with it is described Second clock signal is the output signal of high level, one low level control signal of output and a high level.

Optionally, in second stage, the output signal controls the input signal of signal drive circuit as next stage.

Correspondingly, the present invention also provides a kind of driving methods of control signal drive circuit, using control as described above Signal drive circuit generates control signal, including:

First stage:Input signal end provides input signal, and the voltage at the first node end is low level;

Second stage:The second clock signal is low level, second electricity of the voltage less than 2 times at the first node end Source voltage, output signal end export low level output signal, while the control signal of control signal end output high level;

Phase III:First clock signal is low level, and the input signal is height with the second clock signal Level, output signal end exports the output signal of high level, while control signal end exports low level control signal.

Optionally, the output signal of second stage controls the input signal of signal drive circuit as next stage.

Correspondingly, the present invention also provides a kind of driving method of pixel circuit, using control signal driving as described above Circuit provides control signal.

Compared with prior art, control signal drive circuit provided by the invention drives with driving method and pixel circuit Method simplifies the structure of control signal drive circuit, and the defeated of control signal is realized using a small amount of transistor and capacitance Go out, be convenient for integrated realization, is conducive to the yield for improving screen body, and the operation is stable of the driving circuit, improves control The output stability of signal.

Description of the drawings

Fig. 1 is the structural schematic diagram of control signal drive circuit in the prior art;

The structural schematic diagram for the control signal drive circuit that Fig. 2 is provided by one embodiment of the invention;

Fig. 3 is the signal timing diagram of control signal drive circuit shown in Fig. 2.

Specific implementation mode

To keep present disclosure more clear and easy to understand, below in conjunction with Figure of description, present disclosure is done into one Walk explanation.Certainly the invention is not limited to the specific embodiment, and general replacement well known to the skilled artisan in the art is also contained Lid is within the scope of the present invention.

Secondly, the present invention has carried out detailed statement using schematic diagram, when present example is described in detail, for the ease of saying Bright, schematic diagram is not partially enlarged in proportion to the general scale, should not be to this restriction as the present invention.

The structural schematic diagram for the control signal drive circuit that Fig. 2 is provided by one embodiment of the invention, as shown in Fig. 2, this Invention proposes a control signal drive circuit, including the first transistor M1 to the 6th transistor M6 and the first capacitance C1, wherein When the grid of the grid of the first transistor M1, the grid of third transistor M3 and the 4th transistor M4 is connected to one first The first electrode of clock signal end CLK1, the first transistor M1 are connected to input signal end IN, the first transistor M1's Second electrode and the grid of second transistor M2 are connected to a first node N;The second electrode of the second transistor M2 connects To a second clock signal end CLK2;The first electrode of the second transistor M2, the first electrode of the third transistor M3, The grid of 5th transistor M5 and the grid of the 6th transistor M6 are connected to a second node M;The of the third transistor M3 The second electrode of two electrodes, the second electrode of the 5th transistor M5 and the 6th transistor M6 is connected to one first Power supply voltage signal end VGH;The first electrode of the 4th transistor M4 is connected to a second source voltage signal end VGL;Institute The second electrode for stating the 4th transistor M4 is connected with the first electrode of the 5th transistor M5;The 6th transistor M6's First electrode is connected to control signal end EM;The first capacitance C1 is connected between the second node M and first node N.

The control signal drive circuit further includes the 7th transistor M7, the grid of the 7th transistor M7 and described the The second electrode of four transistor M4, the first electrode of the 5th transistor M5 are connected, and the first of the 7th transistor M7 Electrode is connected to the second source voltage signal end VGL, and the second electrode of the 7th transistor M7 is connected to the control Signal end EM.

Further include the second capacitance C2, one end of the second capacitance C2 and the second electrode of the 4th transistor M4, institute The grid of the first electrode and the 7th transistor M7 of stating the 5th transistor M5 is connected, and the second capacitance C2's is another End is connected to the control signal end EM.

The input signal end IN provides input signal in, the first clock signal terminal CLK1 and provides the first clock signal Clk1, the second clock signal end CLK2 provide second clock signal clk2, and-the first power supply voltage signal end VGH is carried For high power supply voltage Vgh, the second source voltage signal end VGL provides low supply voltage Vgl.The one of the first capacitance C1 It holds, the grid of the first electrode of the second transistor M2, the first electrode of the third transistor M3, the 5th transistor M5 The grid of pole and the 6th transistor M6 are connected to second node M, and the second node M is connected to output signal end OUT, Output signal out is provided.One end of the second capacitance C2, the first electrode of the 6th transistor M6, the 7th crystal The second electrode of pipe M7 is connected with each other, and is connected to control signal end EM, for exporting control signal em.

In the present embodiment, the first electrode is source electrode, and the second electrode is drain electrode;Alternatively, the first electrode For drain electrode, the second electrode is source electrode.

The driver' s timing of the control signal drive circuit includes first stage T1, second stage T2 and phase III T3; T1 in the first stage, input signal in and the first clock signal clk1 are low level, and second clock signal clk2 is high level; Second stage T2, the input signal in are high level, the second clock signal clk2 with the first clock signal clk1 For low level, the low level output signal out of control signal em and one of a high level are exported;It is described in phase III T3 First clock signal clk1 is low level, and the input signal in and second clock signal clk2 is high level, output one The output signal out of low level control signal em and a high level.The signal sequence of control signal drive circuit shown in Fig. 2 Figure has for one in second stage as shown in figure 3, can be seen that the control signal em1 from first stage T1 to phase III T3 The signal for having high level, to be supplied to pixel circuit.Under the low level output signal out exported in second stage T2 is used as Level-one controls the input signal of signal drive circuit, then in phase III T3, the control signal drive circuit output one of next stage The low level output signal (not shown)s of the control signal em2 of high level and one, the output signal conduct are next again The input signal of the control signal drive circuit of grade, and so on, generate multiple control signal em, and multiple control signal em High level translate successively, be supplied to pixel circuit different in display.

Correspondingly, the present invention also provides a kind of driving methods of control signal drive circuit, using above-mentioned control signal Driving circuit generates control signal, please refers to signal timing diagram shown in Fig. 3, the driving method of the control signal drive circuit Including:

First stage T1:The voltage of input signal end IN input voltages, the first node N-terminal is low level;

Second stage T2:The second clock signal clk2 is low level, and the voltage of the first node N-terminal is less than 2 times Low supply voltage, output signal end exports low level output signal, while the control letter of control signal end output high level Number;

Phase III T3:First clock signal is low level, and the input signal is with the second clock signal High level, output signal end exports the output signal of high level, while control signal end exports low level control signal.

Specifically, T1, the input signal in and the first clock signal clk1 are low level, second clock in the first stage Signal clk2 is high level, and the voltage of the first node N-terminal is low level VGL+ | Vth | (wherein, Vth is the first transistor The threshold voltage of M1).

It is high level in second stage T2, the input signal in and the first clock signal clk1, when described second Clock signal clk2 is low level, and the voltage of the first node N-terminal is less than 2Vgl, and output signal end OUT outputs are low level defeated Go out signal out, while the control signal em1 of control signal end EM output high level.

It should be noted that in organic light emitting display, multiple data lines and scan line, X-shape are set on substrate At the rectangular pixel unit of multiple arrangements, the waveform that often capable scan line provides sequentially will be in the pixel unit of every a line Switching transistor is opened, and is allowed the data line of entire row simultaneously by the pixel unit of a full line well, is charged to respective required voltage, shows Show different grayscale.When every a line is charged, scan line just closes voltage, and then the scan line of next line beats voltage It opens, then charge and discharge is carried out to the pixel unit of next line by the data line of an identical row, so sequentially go down, when having substituted the bad for the good most The pixel unit of a line afterwards is then a frame, is then started to charge up again from the first row again.It is both provided with pixel in each pixel unit Circuit is used for the charge and discharge of pixel unit, needs to provide control signal when completing charge and discharge, therefore, the pixel electricity per a line Road is required to control signal drive circuit and provides control signal, and therefore, the setting for controlling signal drive circuit should be with scan line It is corresponding, Multistage Control signal drive circuit is provided on substrate, the control signal drive circuit per level-one corresponds to one Scan line.Low level output signal will be exported per level-one in second stage T2 output signal ends OUT by control signal drive circuit Out as next stage control signal drive circuit input signal, the first order control signal drive circuit input signal by Input signal end IN provides input signal in.

It is low level in phase III T3, the first clock signal clk1, when the input signal in is with described second Clock signal clk2 is high level, the output signal out of output signal end OUT output high level, while control signal end EM outputs Low level control signal em1.

In phase III T3, for the control signal drive circuit of next stage, output signal end OUT outputs are low level defeated Go out signal out, while control the signal em2, the control signal em2 of control signal end EM output high level are supplied to phase therewith Corresponding pixel circuit, input signals of the output signal out as the control signal drive circuit of next stage again.

Control signal drive circuit per level-one sequentially provides control signal to corresponding pixel circuit, until a frame knot Beam, each control signal has been provided in control signal drive circuit at this time, then again from the control signal drive circuit of the first order Start, the job order of the control signal drive circuit is consistent with the pixel unit.

Correspondingly, the present invention also provides a kind of driving method of pixel circuit, using above-mentioned control signal drive circuit Control signal is provided.The structure of control signal drive circuit provided by the invention is simple, which is integrated When in the screen body of organic light emitting display, the area of occupancy screen body that will not be excessive is conducive to the reduction of cost.Also, by In simple in structure, then the Comparision of circuit is stablized, and is capable of providing the stability of control signal.

In conclusion control signal drive circuit provided by the invention and driving method and pixel circuit drive method, The structure for simplifying control signal drive circuit is realized the output of control signal using a small amount of transistor and capacitance, is convenient for Integrated realization is conducive to the yield for improving screen body, and the operation is stable of the driving circuit, improves the defeated of control signal Go out stability.

Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims Range.

Claims (10)

1. a kind of control signal drive circuit, which is characterized in that including the first transistor to the 6th transistor and the first capacitance, Wherein,
The grid of the grid of the first transistor, the grid of third transistor and the 4th transistor is connected to one first clock Signal end, the first electrode of the first transistor are connected to input signal end, the second electrode of the first transistor and the The grid of two-transistor is connected to a first node;
The second electrode of the second transistor is connected to a second clock signal end;The first electrode of the second transistor, The grid of the first electrode of the third transistor, the grid of the 5th transistor and the 6th transistor is connected to a second node;
The second of the second electrode of the third transistor, the second electrode of the 5th transistor and the 6th transistor Electrode is connected to one first power supply voltage signal end;
The first electrode of 4th transistor is connected to a second source voltage signal end;Second electricity of the 4th transistor Pole is connected with the first electrode of the 5th transistor;
The first electrode of 6th transistor is connected to a control signal end;
First capacitance connection is between the second node and first node.
2. control signal drive circuit as described in claim 1, which is characterized in that further include the 7th transistor, the described 7th The grid of transistor is connected with the second electrode of the 4th transistor, and the first electrode of the 7th transistor is connected to institute Second source voltage signal end is stated, the second electrode of the 7th transistor is connected to the control signal end.
3. control signal drive circuit as claimed in claim 2, which is characterized in that further include the second capacitance, second electricity One end of appearance is connected with the second electrode of the 4th transistor, and the other end of second capacitance is connected to the control letter Number end.
4. control signal drive circuit as claimed in claim 3, which is characterized in that the second node is connected to output signal End.
5. control signal drive circuit as claimed in claim 4, which is characterized in that the first electrode is source electrode, described the Two electrodes are drain electrode;Alternatively, the first electrode is drain electrode, the second electrode is source electrode.
6. such as control signal drive circuit according to any one of claims 1 to 5, which is characterized in that the driving circuit Driver' s timing includes first stage, second stage and phase III;In the first stage, input signal is low with the first clock signal Level, second clock signal are high level;In second stage, the input signal is high level with first clock signal, The second clock signal is low level, exports the control signal and a low level output signal of a high level;In third Stage, first clock signal are low level, and the input signal is high level with the second clock signal, and output one is low The control signal of level and the output signal of a high level.
7. control signal drive circuit as claimed in claim 6, which is characterized in that in second stage, the output signal is made The input signal of signal drive circuit is controlled for next stage.
8. a kind of driving method of control signal drive circuit, which is characterized in that using as described in any one of claim 1~7 Control signal drive circuit generate control signal, including:
First stage:Input signal end provides input signal, and the voltage at the first node end is low level;
Second stage:The second clock signal is low level, the second source electricity of the voltage less than 2 times at the first node end Pressure, output signal end export low level output signal, while the control signal of control signal end output high level;
Phase III:First clock signal is low level, and the input signal is high level with the second clock signal, Output signal end exports the output signal of high level, while control signal end exports low level control signal.
9. the driving method of control signal drive circuit as claimed in claim 8, which is characterized in that the output of second stage is believed Number as next stage control signal drive circuit input signal.
10. a kind of driving method of pixel circuit, which is characterized in that using such as claim 1~7 any one of them control letter Number driving circuit provides control signal.
CN201710189258.4A 2017-03-27 2017-03-27 Control signal drive circuit and driving method and pixel circuit drive method CN108665854A (en)

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101075481A (en) * 2006-05-19 2007-11-21 奇美电子股份有限公司 Shift register and its signal generator
CN102684672A (en) * 2008-02-08 2012-09-19 索尼株式会社 Bootstrap circuit
US20140050294A1 (en) * 2011-10-26 2014-02-20 Beijing Boe Optoelectronics Technology Co., Ltd. Gate line driving method and apparatus, shifting register and display device
CN104183219A (en) * 2013-12-30 2014-12-03 昆山工研院新型平板显示技术中心有限公司 Scanning drive circuit and organic light-emitting displayer
CN104751769A (en) * 2013-12-25 2015-07-01 昆山工研院新型平板显示技术中心有限公司 Scanning driver and organic light emitting display employing same
CN105427790A (en) * 2016-01-05 2016-03-23 京东方科技集团股份有限公司 Shift register and driving method thereof, grid driving circuit, and display apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101075481A (en) * 2006-05-19 2007-11-21 奇美电子股份有限公司 Shift register and its signal generator
CN102684672A (en) * 2008-02-08 2012-09-19 索尼株式会社 Bootstrap circuit
US20140050294A1 (en) * 2011-10-26 2014-02-20 Beijing Boe Optoelectronics Technology Co., Ltd. Gate line driving method and apparatus, shifting register and display device
CN104751769A (en) * 2013-12-25 2015-07-01 昆山工研院新型平板显示技术中心有限公司 Scanning driver and organic light emitting display employing same
CN104183219A (en) * 2013-12-30 2014-12-03 昆山工研院新型平板显示技术中心有限公司 Scanning drive circuit and organic light-emitting displayer
CN105427790A (en) * 2016-01-05 2016-03-23 京东方科技集团股份有限公司 Shift register and driving method thereof, grid driving circuit, and display apparatus

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