WO2016150061A1 - 一种移位寄存器、栅极驱动电路、显示面板及显示装置 - Google Patents
一种移位寄存器、栅极驱动电路、显示面板及显示装置 Download PDFInfo
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- WO2016150061A1 WO2016150061A1 PCT/CN2015/085786 CN2015085786W WO2016150061A1 WO 2016150061 A1 WO2016150061 A1 WO 2016150061A1 CN 2015085786 W CN2015085786 W CN 2015085786W WO 2016150061 A1 WO2016150061 A1 WO 2016150061A1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control 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
- G09G3/34—Control 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 by control of light from an independent source
- G09G3/36—Control 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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control 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
- G09G3/34—Control 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 by control of light from an independent source
- G09G3/36—Control 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 by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
- G11C19/287—Organisation of a multiplicity of shift registers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0283—Arrangement of drivers for different directions of scanning
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/06—Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
Definitions
- each shift register After receiving the trigger signal, each shift register outputs a gate line scan signal to the corresponding gate line, and supplies the trigger signal to the next stage unit circuit to realize the gate drive.
- Function, such a design can save the separate setting of the gate driving chip in the frame area of the display panel, which is beneficial to realize the narrow frame design of the display panel, reduces the production cost of related products, and improves the market competitiveness of the display product.
- the embodiment of the invention provides a shift register, a gate driving circuit, a display panel and a display device, which are used to solve the problem that the scanning signal outputted by the shift register existing in the prior art has large noise and large power consumption. .
- Embodiments of the present invention provide a shift register, including:
- An input module wherein the input end is connected to the first reference signal end, the control end is connected to the signal input end, the output end is connected to the first node, and the input module is configured to pull down the first node at the control of the signal input end Potential
- a reset module wherein the input end is connected to the second reference signal end, the control end is connected to the reset signal end, the output end is connected to the first node, and the reset module is configured to pull down the control at the reset signal end The potential of a node;
- a pull-up module wherein the input end and the control end are both connected to the first clock signal end, the output end is connected to the second node, and the pull-up module is configured to pull down the second node at the control of the first clock signal end Potential
- a first node pull-down module the input end of which is connected to the low-level signal end, the control end is connected to the second node, the output end is connected to the first node, and the first node pull-down module is used in the first The control of the two nodes pulls down the potential of the first node;
- the second node pull-down module is configured to pull down a potential of the second node at a control of the first node and the scan signal output end;
- An output control module is connected between the low level signal end, the second clock signal end, the first node, the second node, the third node, and the scan signal output end, where the output control module is used Controlling, by the control of the first node, the scan signal output end to output a signal of the second clock signal end, and controlling the low level signal end and the third under the control of the second node
- the node is turned on;
- An output noise reduction module wherein the input end is connected to the third node, the control end is connected to the high level signal end, the output end is connected to the scan signal output end, and the output noise reduction module is used to The signal of the node is filtered and noise-reduced and transmitted to the output of the scan signal.
- the output noise reduction module includes: a first switching transistor,
- the gate of the first switching transistor is connected to the high-level signal end, the source is connected to the third node, and the drain is connected to the scan signal output end.
- the output control module includes a first output control module and a second output control module.
- a first control end of the first output control module is connected to the first node, a second control end is connected to the third node, an input end is connected to the second clock signal end, and an output end is The scan signal output ends are connected, and the first output control module is configured to control, by the control of the first node, the scan signal output end to output the signal of the second clock signal end;
- the first control end of the second output control module is connected to the second node, the second control end is connected to the low level signal end, the input end is connected to the low level signal end, and the output end is The third node is connected, and the second output control module is configured to turn on the low-level signal end and the third node under the control of the second node.
- the first output control module includes a second switching transistor and a first capacitor
- a gate of the second switching transistor is connected to the first node, a source is connected to the second clock signal end, and a drain is connected to the scan signal output end;
- the second output control module includes a third switching transistor and a second capacitor.
- a gate of the third switching transistor is connected to the second node, a source is connected to the low-level signal end, and a drain is connected to the third node;
- the second node pull-down module includes a first pull-down module and a second pull-down module.
- An input end of the first pull-down module is connected to the low-level signal end, a control end is connected to the first node, and an output end is connected to the second node, where the first pull-down module is used to The control of the first node pulls down the potential of the second node;
- the input end of the second pull-down module is connected to the low-level signal end, the control end is connected to the scan signal output end, the output end is connected to the second node, and the second pull-down module is used in the When the scan signal output terminal outputs the scan signal, the potential of the second node is further pulled down.
- the first pull-down module includes a fourth switching transistor
- the gate of the seventh switching transistor is connected to the reset signal terminal, the source is connected to the second reference signal terminal, and the drain is connected to the node.
- the first node pull-down module includes an eighth switch transistor
- the control end of the transmission module is connected to the high-level signal end, and the input end is connected to the first node, the output end of the first node pull-down module, and the first control end of the second node pull-down module. And the output end is connected to the first control end of the first output control module, and the transmission module is configured to perform filtering and noise reduction on the signal output by the first node, and output the signal to the first output control module.
- the transmission module includes a tenth switching transistor
- the gate of the tenth switching transistor is connected to the high level signal end, the source is connected to the first node, and the drain is connected to the first control end of the first output control module.
- the embodiment of the present invention provides a gate driving circuit, including a plurality of cascaded shift registers provided by the embodiments of the present invention, except for the first shift register and the last shift register.
- the scan signal output terminal of the bit register inputs a trigger signal to the signal input end of the next shift register adjacent thereto, and inputs a reset signal to the reset signal end of the previous shift register adjacent thereto;
- the first shift The scan signal output end of the register inputs a trigger signal to the signal input end of the second shift register;
- the scan signal output end of the last shift register inputs a reset signal to itself and the reset signal end of the previous shift register.
- Embodiments of the present invention provide a shift register, a gate driving circuit, a display panel, and a display device.
- the shift register includes an input module, a reset module, a pull-up module, a first node pull-down module, and a second node pull-down module.
- An output control module, and an output noise reduction module wherein the input module is configured to pull down the potential of the first node at the signal input end; the reset module is configured to pull down the potential of the first node at the control of the reset signal end; The second node is pulled down at the control of the first clock signal; the first node pull-down module is used to pull down the potential of the first node at the control of the second node; the second node pull-down module is used for the first node and the scan The control of the signal output pulls down the potential of the second node; the output control module is used to control the output of the scan signal output under the control of the first node a signal of the second clock signal end, and the low-level signal end is turned on with the third node under the control of the second node, thereby realizing the function of the shift register outputting the scan signal in the corresponding time period, and simultaneously outputting the noise reduction module
- the signal of the third node is filtered and noise-reduced, and the filtered noise-reduced signal
- FIG. 3 is a schematic structural diagram of a shift register according to an embodiment of the present disclosure.
- FIG. 4 to FIG. 7 are schematic diagrams showing a specific structure of a shift register according to an embodiment of the present invention.
- FIG. 8 is a timing diagram of input and output of a shift register according to an embodiment of the present invention.
- the embodiment of the present invention provides a shift register, as shown in FIG. 3, which may include: an input module 01, a reset module 02, a pull-up module 03, a first node pull-down module 04, a second node pull-down module 05, and an output control. Module 06, and output noise reduction module 07; wherein
- the input end of the first node pull-down module 04 is connected to the low-level signal end VGL, the control end is connected to the second node P2, the output end is connected to the first node P1, and the first node pull-down module 04 is used at the second node P2. Controlling the potential of the first node P1 to be pulled down;
- the input end of the output noise reduction module 07 is connected to the third node P3, the control end is connected to the high level signal terminal VGH, the output end is connected to the scan signal output end Out, and the output noise reduction module 07 is used to signal the third node P3. After filtering and noise reduction, it is output to the scan signal output terminal Out.
- the input module 01 is used for pulling The potential of the first node P1 is high; the reset module 02 is used to pull down the potential of the first node P1; the pull-up module 03 is used to pull up the potential of the second node P2; and the first node pull-down module is used to pull down the first node P1
- the second node pull-down module is configured to pull down the potential of the second node P2; the output control module 06 is configured to control the scan signal output terminal Out to output the signal of the second clock signal terminal CLKB under the control of the first node P1, and
- the low-level signal terminal VGL is turned on with the third node P3 under the control of the second node P2; thus, the function of outputting the scan signal by the shift register in the corresponding time period is realized, and at the same time, the output noise reduction module 07 will be the third node.
- the signal of P3 is filtered and noise-reduced and output to the output end of the scan signal output, thereby reducing the signal noise of the output end of the scan signal, improving the lossless transmission of the signal, reducing the power consumption, and thereby improving the yield of the display panel.
- the output noise reduction module 07 specifically includes: a first switching transistor T1; a gate and a high level signal of the first switching transistor T1.
- the terminal VGH is connected, the source is connected to the third node P3, and the drain is connected to the scan signal output terminal Out.
- the output control module 06 specifically includes: a first output control module 061 and a second output control module 062;
- the first control end of the first output control module 061 is connected to the first node P1, the second control end is connected to the third node P3, the input end is connected to the second clock signal end CLKB, and the output end is The scan signal output terminal Out is connected, and the first output control mode Block 061 is configured to control, by the control of the first node P1, the scan signal output terminal Out to output a signal of the second clock signal terminal CLKB;
- the first output control module 061 specifically includes: a second switching transistor T2 and a first capacitor C1; wherein, the second switching transistor T2 The gate is connected to the first node P1, the source is connected to the second clock signal terminal CLKB, and the drain is connected to the scan signal output terminal Out.
- the first capacitor C1 is connected between the first node P1 and the third node P3.
- the second switching transistor T2 when the potential of the first node P1 is pulled high, the second switching transistor T2 is in an on state, and the second switching transistor T2 that is turned on turns the second clock signal terminal CLKB and the scan signal output terminal Out, and simultaneously
- the first capacitor C1 acts as a bootstrap action on the potential of the first node P1 to further maintain the potential of the first node P1.
- the second output control module 062 specifically includes: a third switching transistor T3 and a second capacitor C2; wherein the third switching transistor T3 The gate is connected to the second node P2, the source Connected to the low-level signal terminal VGL, the drain is connected to the third node P3; the second capacitor C2 is connected between the second node P2 and the low-level signal terminal VGL.
- the second node pull-down module 05 specifically includes: a first pull-down module 051 and a second pull-down module 052; wherein, the first The input end of the pull module 051 is connected to the low level signal terminal VGL, the control end is connected to the first node P1, the output end is connected to the second node P2, and the first pull-down module 051 is used to pull down the control at the first node P1.
- the potential of the second node P2; the input end of the second pull-down module 052 is connected to the low-level signal terminal VGL, the control terminal is connected to the scan signal output terminal Out, the output terminal is connected to the second node P2, and the second pull-down module 052 is used for The potential of the second node P2 is further pulled down when the scan signal output terminal Out outputs the scan signal.
- the first pull-down module 051 and the second pull-down module 052 respectively lower the potential of the second node P2, thereby The signal noise of the second node P2 can be further reduced.
- the first pull-down module 051 specifically includes: a fourth switching transistor T4; a gate of the fourth switching transistor T4 and a first node P1 is connected, the source is connected to the low-level signal terminal VGL, and the drain is connected to the second node P2.
- the fourth switching transistor T4 when the potential of the first node P1 is pulled high, the fourth switching transistor T4 is In the on state, the turned-on fourth switching transistor T4 turns on the low-level signal terminal VGL and the second node P2, thereby lowering the potential of the second node P2 and reducing the signal noise of the second node P2.
- the fifth switch transistor T5 when the scan signal output terminal Out outputs the scan signal, the fifth switch transistor T5 is in an on state, and the turned on fifth switch transistor T5 turns on the low level signal terminal VGL and the second node P2, thereby pulling down The potential of the second node P2, which can further reduce the signal noise of the second node P2.
- the input module 01 specifically includes: a sixth switching transistor T6; a gate of the sixth switching transistor T6 is connected to the signal input terminal Input, The source is connected to the first reference signal terminal CN, and the drain is connected to the first node P1.
- the sixth switching transistor T6 when the signal input terminal inputs the signal, the sixth switching transistor T6 is in an on state, and the turned-on sixth switching transistor T6 turns on the first reference signal terminal CN and the first node P1, thereby using the first reference.
- the signal of the signal terminal CN is transmitted to the first node P1.
- the reset module 02 specifically includes: a seventh switching transistor T7; a gate of the seventh switching transistor T7 is connected to a reset signal end Reset, The source is connected to the second reference signal terminal CNB, and the drain is connected to the first node P1.
- the seventh switching transistor T7 when the reset signal terminal Reset input signal, the seventh switching transistor T7 is in an on state, and the turned-on seventh switching transistor T7 turns on the second reference signal terminal CNB and the first node P1, thereby using the second reference.
- the signal of the signal CNB is transmitted to the first node P1.
- the first node pull-down module 04 specifically includes: an eighth switch transistor T8; a gate and a second node of the eighth switch transistor T8. P2 is connected, the source is connected to the low-level signal terminal VGL, and the drain is connected to the first node P1.
- the pull-up module 03 specifically includes: a ninth switching transistor T9; a gate and a source of the ninth switching transistor T9 are both A clock signal terminal CLK is connected, and a drain is connected to the second node P2.
- the shift register provided by the embodiment of the present invention may further include: a transmission module 08; the control end of the transmission module 08 is connected to the high-level signal terminal VGH, and the input end and the a node P1, an output end of the first node pull-down module 04, a first control end of the second node pull-down module 05, and an output end connected to the first control end of the first output control module 061, the transmission module 08 is used for filtering and noise-reducing the signal output by the first node P1, and then outputting the signal to the first output control module 061.
- the transmission module 08 is in a normally open state under the control of the high level signal terminal VGH, and operates as a single tube transmission gate. Therefore, the signal output by the first node P1 can be filtered and noise-reduced and output to the first output control module. 061, thereby reducing signal noise of the first control terminal of the first output control module 061.
- the transmission module 08 may specifically include: a tenth switching transistor T10; a gate and a high level signal of the tenth switching transistor T10.
- the terminal VGH is connected, the source is connected to the first node P1, and the drain is connected to the first control end of the first output control module 061.
- the tenth switching transistor T10 is in an on state under the control of the high level signal terminal VGH, and operates as a single tube transmission gate. Therefore, the signal output by the first node P1 can be filtered and noise-reduced and output to the first output.
- the module 061 is controlled to reduce the signal noise of the first control terminal of the first output control module 061.
- the signal input terminal Input and the reset signal terminal Reset are symmetrically designed in the above-mentioned shift register provided by the embodiment of the present invention, the function interchange can be implemented. Therefore, the above shift register provided by the embodiment of the present invention can implement bidirectional scanning. .
- the t1 phase is the charging phase.
- the turned-on third switching transistor T3 turns on the low-level signal terminal VGL and the third node P3, and the signal of the third node P3 passes through the filtering of the first switching transistor T1. After the noise is output to the scan signal output terminal Out, the scan signal output terminal Out outputs a low level signal.
- the t3 phase is the non-scanning signal output phase.
- shift registers are shown in FIG. 9, which are a first-stage shift register, a second-stage shift register, a third-stage shift register, a fourth-stage shift register, and an N-th 3-stage shift register, N-2th shift register, N-1th shift register, Nth shift register.
- the signal output terminal Out of the N-1th shift register not only outputs a gate turn-on signal to the gate line connected thereto, but also outputs a reset signal to the N-2th shift register, and also to the Nth stage shift register.
- the trigger signal is output.
- each of the shift registers in the above-mentioned gate driving circuit is identical in function and structure to the above-described shift register provided by the present invention, and the repeated description is omitted.
- an embodiment of the present invention provides a display device, including the above display panel provided by the embodiment of the present invention.
- the display device can be applied to any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like. Since the principle of solving the problem is similar to that of the display panel, the implementation of the display device can be referred to the implementation of the above display panel, and the repeated description is omitted.
- Embodiments of the present invention provide a shift register, a gate driving circuit, a display panel, and a display device.
- the shift register includes an input module, a reset module, a pull-up module, a first node pull-down module, and a second node pull-down module.
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Abstract
Description
Claims (17)
- 一种移位寄存器,包括:输入模块,其输入端与第一参考信号端相连,控制端与信号输入端相连,输出端与第一节点相连,所述输入模块用于在所述信号输入端的控制下拉高所述第一节点的电位;复位模块,其输入端与第二参考信号端相连,控制端与复位信号端相连,输出端与所述第一节点相连,所述复位模块用于在所述复位信号端的控制下拉低所述第一节点的电位;上拉模块,其输入端和控制端均与第一时钟信号端相连,输出端与第二节点相连,所述上拉模块用于在所述第一时钟信号端的控制下拉高所述第二节点的电位;第一节点下拉模块,其输入端与低电平信号端相连,控制端与所述第二节点相连,输出端与所述第一节点相连,所述第一节点下拉模块用于在所述第二节点的控制下拉低所述第一节点的电位;第二节点下拉模块,其输入端与低电平信号端相连,第一控制端与所述第一节点相连,第二控制端与扫描信号输出端相连,输出端与所述第二节点相连,所述第二节点下拉模块用于在所述第一节点和所述扫描信号输出端的控制下拉低所述第二节点的电位;输出控制模块,连接于所述低电平信号端、第二时钟信号端、所述第一节点、所述第二节点、第三节点和所述扫描信号输出端之间,所述输出控制模块用于在所述第一节点的控制下控制所述扫描信号输出端输出所述第二时钟信号端的信号,以及在所述第二节点的控制下将所述低电平信号端与所述第三节点导通;输出降噪模块,其输入端与所述第三节点相连,控制端与高电平信号端相连,输出端与所述扫描信号输出端相连,所述输出降噪模块用于 将所述第三节点的信号进行滤波降噪后输出到所述扫描信号输出端。
- 如权利要求1所述的移位寄存器,其中,所述输出降噪模块包括第一开关晶体管,所述第一开关晶体管的栅极与所述高电平信号端相连,源极与所述第三节点相连,漏极与所述扫描信号输出端相连。
- 如权利要求1所述的移位寄存器,其中,所述输出控制模块包括第一输出控制模块和第二输出控制模块,所述第一输出控制模块的第一控制端与所述第一节点相连,第二控制端与所述第三节点相连,输入端与所述第二时钟信号端相连,以及输出端与所述扫描信号输出端相连,所述第一输出控制模块用于在所述第一节点的控制下,控制所述扫描信号输出端输出所述第二时钟信号端的信号;所述第二输出控制模块的第一控制端与所述第二节点连接,第二控制端与所述低电平信号端相连、输入端与所述低电平信号端相连,以及输出端与所述第三节点相连,所述第二输出控制模块用于在所述第二节点的控制下,将所述低电平信号端与所述第三节点导通。
- 如权利要求3所述的移位寄存器,其中,所述第一输出控制模块包括第二开关晶体管和第一电容器,所述第二开关晶体管的栅极与所述第一节点相连,源极与所述第二时钟信号端相连,漏极与所述扫描信号输出端相连;所述第一电容器连接于所述第一节点与所述第三节点之间。
- 如权利要求3所述的移位寄存器,其中,所述第二输出控制模块包括第三开关晶体管和第二电容器,所述第三开关晶体管的栅极与所述第二节点相连,源极与所述低电平信号端相连,漏极与所述第三节点相连;所述第二电容器连接于所述第二节点和所述低电平信号端之间。
- 如权利要求1所述的移位寄存器,其中,所述第二节点下拉模块包括第一下拉模块和第二下拉模块,所述第一下拉模块的输入端与所述低电平信号端相连,控制端与所述第一节点相连,输出端与所述第二节点相连,所述第一下拉模块用于在所述第一节点的控制下拉低所述第二节点的电位;所述第二下拉模块的输入端与所述低电平信号端相连,控制端与所述扫描信号输出端相连,输出端与所述第二节点相连,所述第二下拉模块用于在所述扫描信号输出端输出扫描信号时进一步拉低所述第二节点的电位。
- 如权利要求6所述的移位寄存器,其中,所述第一下拉模块包括第四开关晶体管,所述第四开关晶体管的栅极与所述第一节点相连,源极与所述低电平信号端相连,漏极与所述第二节点相连。
- 如权利要求6所述的移位寄存器,其中,所述第二下拉模块包括第五开关晶体管,所述第五开关晶体管的栅极与所述扫描信号输出端相连,源极与所述低电平信号端相连,漏极与所述第二节点相连。
- 如权利要求1-8任一项所述的移位寄存器,其中,所述输入模块包括第六开关晶体管,所述第六开关晶体管的栅极与所述信号输入端相连,源极与所述第一参考信号端相连,漏极与所述一节点相连。
- 如权利要求1-8任一项所述的移位寄存器,其中,所述复位模块包括第七开关晶体管;所述第七开关晶体管的栅极与所述复位信号端相连,源极与所述第 二参考信号端相连,漏极与所述一节点相连。
- 如权利要求1-8任一项所述的移位寄存器,其中,所述第一节点下拉模块包括第八开关晶体管,所述第八开关晶体管的栅极与所述第二节点相连,源极与所述低电平信号端相连,漏极与所述一节点相连。
- 如权利要求1-8任一项所述的移位寄存器,其中,所述上拉模块包括第九开关晶体管,所述第九开关晶体管的栅极和源极均与所述第一时钟信号端相连,漏极与所述第二节点相连。
- 如权利要求1-8任一项所述的移位寄存器,还包括:传输模块,所述传输模块的控制端与所述高电平信号端相连,输入端与所述第一节点、所述第一节点下拉模块的输出端、所述第二节点下拉模块的第一控制端相连,以及输出端与所述第一输出控制模块的第一控制端相连,所述传输模块用于对所述第一节点输出的信号进行滤波降噪后输出到所述第一输出控制模块。
- 如权利要求13所述的移位寄存器,其中,所述传输模块包括第十开关晶体管,所述第十开关晶体管的栅极与所述高电平信号端相连,源极与所述第一节点相连,漏极与所述第一输出控制模块的第一控制端相连。
- 一种栅极驱动电路,包括级联的多个如权利要求1-14任一项所述的移位寄存器,除第一个移位寄存器和最后一个移位寄存器之外,其余每个移位寄存器的扫描信号输出端均向与其相邻的下一个移位寄存器的信号输入端输入触发信号,并向与其相邻的上一个移位寄存器的复位信号端输入复位信号;第一个移位寄存器的扫描信号输出端向第二个移位寄存器的信号输入端输入触发信号;最后一个移位寄存器的扫描信号 输出端向自身以及上一个移位寄存器的复位信号端输入复位信号。
- 一种显示面板,包括如权利要求15所述的栅极驱动电路。
- 一种显示装置,包括如权利要求16所述的显示面板。
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| CN104778928B (zh) * | 2015-03-26 | 2017-04-05 | 京东方科技集团股份有限公司 | 一种移位寄存器、栅极驱动电路、显示面板及显示装置 |
| CN104766586B (zh) * | 2015-04-29 | 2017-08-29 | 合肥京东方光电科技有限公司 | 移位寄存器单元、其驱动方法、栅极驱动电路及显示装置 |
| CN104992661B (zh) * | 2015-07-29 | 2017-09-19 | 京东方科技集团股份有限公司 | 移位寄存电路及其驱动方法、栅极驱动电路及显示装置 |
| CN105047172A (zh) * | 2015-09-15 | 2015-11-11 | 京东方科技集团股份有限公司 | 移位寄存器、栅极驱动电路、显示屏及其驱动方法 |
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2015
- 2015-03-26 CN CN201510137120.0A patent/CN104700803B/zh not_active Expired - Fee Related
- 2015-07-31 WO PCT/CN2015/085786 patent/WO2016150061A1/zh not_active Ceased
- 2015-07-31 US US15/122,151 patent/US10121436B2/en active Active
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| KR20130135629A (ko) * | 2012-06-01 | 2013-12-11 | 엘지디스플레이 주식회사 | 쉬프트 레지스터 |
| KR20150003054A (ko) * | 2013-06-28 | 2015-01-08 | 엘지디스플레이 주식회사 | 쉬프트 레지스터와 이를 이용한 표시장치 |
| CN103943081A (zh) * | 2014-03-14 | 2014-07-23 | 京东方科技集团股份有限公司 | 移位寄存器、其制作方法、栅线集成驱动电路及相关装置 |
| CN204102544U (zh) * | 2014-11-07 | 2015-01-14 | 京东方科技集团股份有限公司 | 移位寄存器单元、栅极驱动电路及显示装置 |
| CN104700803A (zh) * | 2015-03-26 | 2015-06-10 | 京东方科技集团股份有限公司 | 一种移位寄存器、栅极驱动电路、显示面板及显示装置 |
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| CN115862513A (zh) * | 2022-12-15 | 2023-03-28 | 武汉天马微电子有限公司 | 移位寄存器及其驱动方法、扫描驱动电路和显示面板 |
Also Published As
| Publication number | Publication date |
|---|---|
| US10121436B2 (en) | 2018-11-06 |
| US20170018243A1 (en) | 2017-01-19 |
| CN104700803A (zh) | 2015-06-10 |
| CN104700803B (zh) | 2017-02-22 |
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