WO2015043087A1 - 栅极驱动电路及栅线驱动方法、显示装置 - Google Patents
栅极驱动电路及栅线驱动方法、显示装置 Download PDFInfo
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- WO2015043087A1 WO2015043087A1 PCT/CN2013/089607 CN2013089607W WO2015043087A1 WO 2015043087 A1 WO2015043087 A1 WO 2015043087A1 CN 2013089607 W CN2013089607 W CN 2013089607W WO 2015043087 A1 WO2015043087 A1 WO 2015043087A1
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Classifications
-
- 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
- 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
-
- 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
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0404—Matrix technologies
- G09G2300/0408—Integration of the drivers onto the display substrate
-
- 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
-
- 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
Definitions
- the present invention relates to the field of display technologies, and in particular, to a gate driving circuit, a gate line driving method, and a display device. Background technique
- display scanning can be realized by means of time-division driving, that is, pixel scanning is performed in the driving phase, scanning signal output is stopped in the touch phase, and the scanning signal is continuously scanned for pixels after the end of the touch phase.
- the gate driving circuit is generally composed of a plurality of series-connected shift register units in the prior art, and each shift register unit corresponds to a gate line output driving signal, in the output process of the above-mentioned scanning signal
- the touch phase is long, and the interruption of the scan signal output may cause the screen to be discontinuous, resulting in poor display of the product. Summary of the invention
- Embodiments of the present invention provide a gate driving circuit, a gate line driving method, and a display device, which are capable of solving the technical problem of display failure caused by interruption of a scanning signal in a time-division-driven touch panel technology.
- a gate driving circuit including a plurality of shift register units connected in series, an adjacent j-th stage shift register unit and a a series of displacement delay modules between j + 1 shift register units;
- the displacement delay module is connected to an output end of the jth stage shift register unit and an input end of the j+1th stage shift register unit, and the displacement delay module is further connected to the repeat output module;
- the repeating output module is connected to an output end of the j-n+1th stage shift register unit and a clock control end;
- the clock control terminal input clock signal turns on the repeat output module after the preset touch time ends, so that the displacement delay module passes the repeat Output module to said j-n+1th stage shift register
- the output end of the unit outputs a repetitive scan signal, so that the j-th+th stage shift register unit to the jth stage shift register unit re-outputs the scan signal to the gate line, where n is greater than or equal to Integer.
- the repetitive output module is further connected to a reference voltage end, and is used to control a voltage through the reference voltage terminal when the j-th shift register unit repeatedly outputs a scan signal.
- the repeating output module stops outputting a repeated scan signal to the output of the j-n+1 stage shift register unit.
- the repeated output module includes an output unit and a pull-down unit
- the output unit is configured to output a repeated scan signal to an output end of the j-n+1-stage shift register unit under the control of the clock control terminal;
- the pull-down unit is further connected to the reference voltage terminal and an output control terminal of the first-stage virtual shift register unit, configured to control, by the voltage of the reference voltage terminal, the first-stage virtual shift register unit to stop passing the output
- the unit outputs a repeated scan signal to the output of the j-n+1 stage shift register unit.
- the repeated output module includes an output unit and a pull-down unit
- the pull-down unit is further connected to the reference voltage terminal and the output control terminal of the first-stage virtual shift register unit, and is configured to control the first-stage virtual shift register unit to be virtual to the next level by the voltage of the reference voltage terminal a shift register unit outputs a signal to control the first
- the output of the i-stage virtual shift register unit stops outputting a repeated scan signal to the output of the j-n+1 stage shift register unit through the output unit.
- the output unit includes a first switching transistor, wherein a gate of the first switching transistor is connected to the clock control end, and a source of the first switching transistor is connected to the displacement delay module, a drain of the first switching transistor is coupled to an output of the jth stage shift register unit;
- the pull-down unit includes a second switching transistor, a gate of the second switching transistor is connected to an output end of the n-th virtual shift register unit, and a source of the second switching transistor is connected to the reference voltage terminal.
- the drain of the second switching transistor is connected to the gate of the driving signal output transistor of the gate line in the first-stage dummy shift register unit.
- the repeated output module is further connected to the reference voltage terminal and the output end of the j+1th shift register unit, for the shift register unit in the j+1th stage
- the repeated output module is controlled to stop outputting the repeated scan signal to the output terminal of the j-stage shift register unit by the voltage of the reference voltage terminal.
- the repeated output module includes an output unit and a pull-down unit
- the displacement delay module includes a first stage virtual shift register unit, wherein an input end of the first stage virtual shift register unit is coupled to an output end of the jth stage shift register unit, the first stage virtual An output end of the shift register unit is connected to an input end of the j+1th stage shift register unit, and the output unit is connected to the clock control end;
- the output unit is configured to output a repeated scan signal to an output end of the j-stage shift register unit under the control of the clock control terminal;
- the pull-down unit is further connected to a reference voltage terminal, an output end of the j+1th stage shift register unit, and an output control end of the first stage virtual shift register unit, for when the j+1 level
- the first stage dummy shift register unit is controlled to stop outputting the repeated scan signal to the output terminal of the j-stage shift register unit by the voltage of the reference voltage terminal.
- the output unit includes a first switching transistor, wherein a gate of the first switching transistor is connected to the clock control end, and a source of the first switching transistor is connected to the displacement delay module. a drain of the first switching transistor is connected to an output end of the j-th stage shift register unit;
- the pull-down unit includes a second switching transistor, and the gate of the second switching transistor Connected to the output end of the j+1th stage shift register unit, the source of the second switching transistor is connected to the reference voltage terminal, and the drain of the second switching transistor is connected to the first stage virtual shift
- the drive signal of the gate line in the register unit outputs the gate of the transistor.
- a display device including any of the gate drive circuits described above.
- a gate line driving method When the displacement delay module is located between an adjacent jth stage shift register unit and a j+i stage shift register unit, the method includes:
- the clock control terminal controls to open the repeated output module, and the displacement delay module outputs a repeated scan signal to the output end of the corresponding corresponding j-n+1th stage shift register unit through the repeated output module;
- the j-n+1 stage shift register unit to the jth stage shift register unit re-outputs the scan signal to the gate line.
- the repeat output module stops to the j-n+1
- the output of the stage shift register unit outputs a repeated scan signal.
- the gate driving circuit and the gate line driving method and the display device provided by the embodiments of the present invention can control the repeated output module through the displacement delay module and the clock control end to drive the shift register unit of the touch stage front gate after the touch phase ends.
- the gate drive signal is repeatedly outputted, thereby being able to solve the display failure caused by the interruption of the scan signal in the touch screen technology of the time division drive.
- FIG. 1 is a schematic structural diagram of a gate driving circuit according to an embodiment of the present invention
- FIG. 2 is a schematic structural view of a gate driving circuit according to another embodiment of the present invention
- FIG. 3 is a schematic structural view of a gate driving circuit according to still another embodiment of the present invention.
- FIG. 4 is a schematic structural view of a gate driving circuit according to still another embodiment of the present invention.
- FIG. 5 is a schematic flow chart of a gate line driving method according to an embodiment of the present invention
- FIG. 6 is a schematic diagram showing an output timing state of a gate driving circuit according to an embodiment of the present invention
- FIG. 7 is a schematic diagram showing an output timing state of a gate driving circuit according to another embodiment of the present invention.
- FIG. 8 is a schematic diagram showing an output timing state of a gate driving circuit according to still another embodiment of the present invention. detailed description
- the transistors used in all the embodiments of the present invention may be thin film transistors or field effect transistors or other devices having the same characteristics. Since the sources and drains of the transistors used herein are symmetrical, the source and the drain are indistinguishable. of. In the embodiment of the present invention, in order to distinguish the two poles of the transistor except the gate, one of the poles is referred to as a source and the other pole is referred to as a drain. According to the form in the drawing, the middle end of the transistor is the gate, the signal input end is the source, and the signal output end is the drain.
- the transistors used in the embodiments of the present invention are P or N-type transistors, and the P-type transistors are turned on when the gate is at a low level, and the N-type transistors are turned on when the gate is at a high level.
- a gate driving circuit includes: including a plurality of shift register units connected in series (in FIG. 1 , the first stage shift register unit to the sixth stage shift register unit are Examples are explained);
- the displacement delay module 11 is connected to the output end of the j-th stage shift register unit and the input end of the j + 1 stage shift register unit, and the displacement delay module is further connected to the repetitive output module;
- the repeating output module 12 is connected to the output end of the j-n+th stage shift register unit and the clock control terminal;
- each shift register unit After the gate-level shift register unit outputs the gate scan signal, after the preset touch time ends, the clock control terminal inputs the clock signal to turn on the repeat output module 12, so that the displacement delay module 11 passes the repeat output module 12 to the j-th An output of the n+1 stage shift register unit outputs a repetitive scan signal for the j-n+1th stage shift register unit to the jth stage shift register The unit re-outputs the scan signal to the gate line, where n is a positive integer greater than or equal to one.
- each shift register unit is connected to a corresponding gate line (G1-G6).
- the output terminal of the third stage shift register unit is connected to the repeat output module 12, so that the gate lines G3 and G4 repeatedly output the scan signal.
- the output module 12 may be repeated according to specific requirements. Connect to the output of any stage shift register unit before the Stage 4 shift register unit.
- the gate driving circuit of the embodiment of the present invention can repeatedly output the gate driving signal of the front gate driving shift register unit in the touch phase by the displacement delay module and the clock control terminal control repeat output module after the touch phase ends.
- the display failure caused by the interruption of the scan signal.
- a gate driving circuit includes a plurality of shift register array substrate row driving (G0A) cells connected in series.
- G0A shift register array substrate row driving
- each G0A unit In addition to the first and last G0A units, the output of each G0A unit is connected to the input of the next adjacent G0A unit, and the input of each G0A unit is connected to the output of the adjacent previous G0A unit;
- the shift register unit unit further includes a first clock signal terminal, a second clock signal terminal and a reference voltage terminal.
- the input end of the first shift register unit receives the frame start signal STV, the output end of the first shift register unit is connected to a gate line, and the input end of the last shift register unit is connected to the adjacent one.
- the output of a shift register unit is connected to the input of the next adjacent G0A unit, and the input of each G0A unit is connected to the output of the adjacent previous G0A unit;
- each gate driving shift register unit is connected to a gate line, and a driving signal is provided for the gate line.
- the shift register unit SR1 to the shift register unit SR6 will be described as an example.
- the displacement delay module 11 is connected to the output end of the jth stage shift register unit and the input end of the j+1th stage shift register unit, and the displacement delay module is further connected to the repeat output module;
- the repeat output module 12 is connected to the j-th The output end of the n+1 stage shift register unit and the clock control end Rescan;
- each shift register unit After the gate-level shift register unit outputs the gate scan signal, the clock control terminal input clock signal turns on the repeat output module 12 after the preset touch time ends, so that the displacement delay module 11 passes through the Repeating output module 12 moves to the j-n+1th stage
- the output of the bit register unit outputs a repeated scan signal, so that the j-th+1th stage shift register unit to the jth stage shift register unit re-outputs the scan signal to the gate line, where n is greater than or equal to A positive integer of 1.
- each shift register unit is connected to a corresponding gate line (G1-G6).
- the repetitive output module 12 is further connected to the reference voltage terminal for repeatedly controlling the output module 12 to stop to j - n + 1 by the voltage of the reference voltage terminal when the j-th shift register unit repeatedly outputs the scan signal.
- the output of the stage shift register unit outputs a repeated scan signal.
- the repeating output module 12 includes an output unit CK and a pull-down unit RES;
- the displacement delay module 11 includes i serially connected virtual shift register units, wherein the input of the first stage virtual shift register unit is connected to the output of the jth stage shift register unit,
- the output terminal of the 1-stage virtual shift register unit is connected to the output unit, and the clock control terminal Re s can is connected to the output unit CK.
- the output unit CK is configured to output a repeated scan signal to the output end of the j-n+1 stage shift register unit under the control of the clock control end Res can;
- the pull-down unit RSE is further connected to the reference voltage terminal and the output control terminal of the first-stage virtual shift register unit for controlling the first-stage virtual shift register unit to stop the j-n+1 through the output unit by the voltage of the reference voltage terminal.
- the output of the stage shift register unit outputs a repeated scan signal.
- the gate driving circuit shown in FIG. 2 includes a plurality of serial shift register units, wherein the output terminal OUTPUT of the shift register unit SR1 is connected to a gate line G1; and the input terminal INPUT of the shift register unit SR2 is connected.
- the output terminal of the bit register unit SR1 is connected to a gate line G2; the input terminal INPUT of the shift register unit SR3 is connected to the output terminal of the shift register unit SR2, and is connected to a gate line G3; the input of the shift register unit SR4
- the terminal I NPUT is connected to the output terminal of the shift register unit SR3, and is connected to a gate line G4;
- the input terminal INPUT of the virtual shift register unit SRD1 is connected to the output terminal of the shift register unit SR4, and is connected to a gate line GDI;
- the input terminal INPUT of the register unit SRD2 is connected to the output terminal of the virtual shift register unit SRD1, and is connected to a gate line GD2;
- the input terminal I NPUT of the shift register unit SR5 is connected to the output terminal of the virtual shift register unit SRD2, and
- a gate line G5 is connected;
- the input terminal INPUT of the shift register unit SR6 is connected to the output terminal of
- the output unit CK of the repetitive output module 12 is connected to the output end of the virtual shift register unit SRD1, the output end of the shift register unit SR3, and the clock control terminal Rescan for the virtual shift register unit SRD1 corresponding to the output unit CK.
- the output control unit CK outputs a signal at the output end of the connected shift register unit SR3 through the clock control terminal Rescan; thus, the SR3 and SR4 two-stage shift register unit can be repeated after the touch phase is completed. Output to improve picture quality.
- the repeating output module 12 further includes a pull-down unit RES connected to the output end of the virtual shift register unit SRD2, the pull-down unit RES is also connected to the output control terminal PU of the virtual shift register unit SRD1, and the pull-down unit RES is also connected to the reference.
- the voltage vss is used to control the virtual shift register unit SRD1 through the voltage of the reference voltage terminal to stop outputting the repeated scan signal to the output terminal of the shift register unit SR3 through the output unit.
- Each of the shift register unit and the dummy shift register unit includes a first clock signal terminal CLK, a second clock signal terminal CLKB, and a reference voltage terminal VSS, wherein for each stage of the shift register unit and the dummy shift register
- the first clock signal terminal CLK receives a clock signal opposite to the clock signal on the second clock signal terminal CLKB. More specifically, the odd-numbered shift register unit or the dummy shift register unit receives the clock signal CL0CK1 at its first clock signal terminal CLK, and receives the clock signal opposite to the clock signal CL0CK1 at its second clock signal terminal CLKB, even-numbered stages.
- the shift register unit or the dummy shift register unit receives the clock signal CL0CK2 at its first clock signal terminal CLK, and receives the clock signal opposite to the clock signal CL0CK2 at its second clock signal terminal CLKB; in addition, the clock signal CL0CK1 and the clock signal CL0CK2 in contrast.
- FIG. 2 provides a connection mode in which the first clock signal terminal CLK of the odd-numbered shift register unit or the virtual shift register unit is connected to the system clock CL0CK1, and the second clock signal terminal is connected to the system clock CL0CK2, and the even-numbered shift
- the first clock signal terminal CLK of the bit register unit or the dummy shift register unit is connected to the system clock CL0CK2, and the second clock signal terminal is connected to the system clock CL0CK1.
- the reference voltage terminal VSS is connected to the reference voltage vss.
- the system clock signal is a first clock signal CL0CK1, a second clock signal CL0CK2), wherein during the touch phase, the system clock signal stops outputting, and in the output phase, the system clock signals CL0CK1, CL0CK2 are at a high level or a ⁇ level duty ratio. Both are 1: 1 (ie, the duty cycles of CL0CK1 and CL0CK2 are respectively 50%), that is, the low-level signal of CL0CK2 starts after the low-level signal of CL0CK1, and the low-level signal of CL0CK2 ends after CL0CK1 The next low-level clock signal starts, and then cycles like this.
- the output of the high-level signal is the same, and will not be described again.
- the first shift register unit is SR1
- the input signal INPUT of the G0A unit SR1 is an active pulse signal, optionally as the frame start signal STV, and the system first clock signal CL0CK1 ends at the STV signal. After the output begins.
- the output unit CK includes a first switching transistor T1, the gate of the first switching transistor T1 is connected to the clock control terminal Rescan, the source of the first switching transistor T1 is connected to the displacement delay module, and the first switching transistor is The drain of T1 is connected to the output of the j-n+1th stage shift register unit;
- the pull-down unit RES includes a second switching transistor T2, the gate of the second switching transistor T2 is connected to the output end of the n-th virtual shift register unit, the source of the second switching transistor T2 is connected to the reference voltage terminal, and the second switching transistor T2 is The drain is connected to the output control terminal PU of the first stage dummy shift register unit SRD1 (for example, the gate of the drive signal output transistor of the gate line in the first stage dummy shift register unit).
- the repeating output module 12 includes an output unit CK and a pull-down unit RSE.
- the displacement delay module 11 includes i serially connected virtual shift register units, wherein an input end of the first stage virtual shift register unit is connected to an output end of the jth stage shift register unit, and an output end of the i th stage virtual shift register unit
- the pull-down unit RSE is also connected to the reference voltage terminal and the output control terminal PU of the first-stage virtual shift register unit for controlling the level 1 virtual shift register by the voltage of the reference voltage terminal
- the element outputs a signal to the next stage virtual shift register unit to control the output of the i-th virtual shift register unit to stop outputting the repeated scan signal to the output of the j-n+1 stage shift register unit through the output unit.
- the output unit CK includes a first switching transistor T1, wherein a gate of the first switching transistor T1 is connected to a clock control terminal Re s can , a source of the first switching transistor T1 is connected to a displacement delay module, and the first switch The drain of the transistor T1 is connected to the output of the jth stage shift register unit;
- the pull-down unit RES includes a second switching transistor T2, the gate of the second switching transistor T2 is connected to the output of the second-stage dummy shift register unit, the source of the second switching transistor T2 is connected to the reference voltage terminal, and the second switching transistor T2 is The drain is connected to the gate of the driving signal of the gate line in the first stage dummy shift register unit, that is, the PU point.
- the repeating output module 12 when n is equal to 1, is further connected to the reference voltage terminal and the output terminal of the j+1th shift register unit for use in the j+1 When the 1-stage shift register unit outputs the scan signal, the repeated output module stops outputting the repeated scan signal to the output terminal of the j-stage shift register unit by the voltage control of the reference voltage terminal.
- the repeating output module 1 2 includes an output unit CK and a pull-down unit RES;
- the displacement delay module 1 1 includes a first stage virtual shift register unit, wherein the input of the first stage virtual shift register unit is connected to the output of the jth stage shift register unit, and the output of the first stage virtual shift register unit The terminal is connected to the input end of the j + 1 stage shift register unit, and the output unit CK included in the repeat output module 12 is connected to the clock control terminal Re s can;
- the output unit CK is configured to output a repeated scan signal to the output end of the j-stage shift register unit under the control of the clock control terminal Re s can ;
- the pull-down unit RES is also connected to the reference voltage terminal, the output terminal of the j+1th shift register unit, and the output control terminal PU of the first stage virtual shift register unit for outputting the scan of the j+1th shift register unit.
- the first stage dummy shift register unit stops controlling the output of the repeated scan signal to the output terminal of the j-stage shift register unit by the voltage of the reference voltage terminal.
- the output unit CK includes a first switching transistor T1, wherein the gate of the first switching transistor T1 is connected to the clock control terminal Re s can , the source of the first switching transistor T1 is connected to the displacement delay module, and the first switching transistor T1 The drain is connected to the output of the jth stage shift register unit;
- the pull-down unit RES includes a second switching transistor T2, and a gate connection of the second switching transistor
- the output terminal of the j+1th stage shift register unit, the source of the second switching transistor T2 is connected to the reference voltage terminal, and the drain of the second switching transistor T2 is connected to the output control terminal PU of the first stage virtual shift register unit SRD1 ( For example, the drive signal of the middle gate line in the first stage dummy shift register unit outputs the gate of the transistor).
- the displacement delay module 11 includes only one dummy shift register unit SRD1, and by outputting a repeated scan signal to the output terminal of the shift register unit SR4, the touch signal on the gate line G4 after receiving the touch is realized. Repeat the output.
- a method for driving a gate line includes:
- Step 1 After the touch time ends, the clock control end controls to open the repetitive output module, and the displacement delay module outputs a repetitive scan signal to the output end of the corresponding j-n+1th stage shift register unit through the repeated output module;
- Step 2 The j-n+1th shift register unit to the jth shift register unit re-output the scan signal to the gate line.
- the method further includes: Step 3: after the j-th shift register unit re-outputs the scan signal or the j+1th-stage shift register unit outputs the scan signal, the repeat output module stops The output of the j-n+1 stage shift register unit outputs a repeated scan signal.
- the gate drive signal of the front-gate drive shift register unit of the touch stage is repeatedly output through the displacement delay module and the clock control terminal control repeat output module, thereby
- the display failure caused by the interruption of the scanning signal is repeatedly output through the displacement delay module and the clock control terminal control repeat output module.
- the working process of the gate line driving method in the embodiment of the present invention is as follows:
- each stage shift register (including the shift register unit and the virtual shift register unit provided in the embodiment of the present invention) has the output signal of the output of the upper stage as the start signal, in the dual clock (CL0CK1 and Under CL0CK2), the first four shift register units SR1, SR2, SR3, SR4 implement the top-down gate drive scan output Gl, G2, G3, G4, and then the clock signal stops, entering the touch time.
- GD2 as the start signal of SR5 will make G5 output high level, then SR5, SR6, SR7 will output high level signals in turn, and then scan G5, G6, G7 '".
- the embodiment of the present invention pulls down the PU end of SRD1 through T2, thereby blocking GDI again.
- the output is high.
- the working process of the gate line driving method in the embodiment of the present invention is as follows:
- each stage shift register (including the shift register unit and the virtual shift register unit provided in the embodiment of the present invention) has the output signal of the output of the upper stage as the start signal, in the dual clock (CL0CK1 and Under CL0CK2), the first four shift register units SR1, SR2, SR3, SR4 implement the top-down gate drive scan output Gl, G2, G3, G4, and then the clock signal stops, entering the touch time.
- the clock signal is turned on again.
- CL0CK1 is high
- the output of the virtual shift register unit SRD1 is output high at GDI
- the GDI output is high as the input signal of the virtual shift register unit SRD2.
- the virtual shift register unit SRD2 outputs a high level at GD2
- the clock control terminal Re s can outputs a high level to turn on the first switching transistor T1, and the high level signal of GD2 is transmitted to G4, and G4 is also high.
- G4 is also high.
- repeated scanning of the gate line G4 corresponding to SR4 is realized.
- the output signals of GDI and GD2 are not connected to the pixel area and have no effect on the pixel display.
- SR5, SR6, and SR7 sequentially output high-level signals, and sequentially perform scanning of G5, G6, and G7 '".
- the embodiment of the present invention pulls down the PU end of SRD1 through T2, thereby blocking GDI again.
- the output is high.
- the working process of the gate line driving method in the embodiment of the present invention is as follows: STV is the start signal, and each stage of the shift register (including the shift register unit and the virtual shift register unit provided in the present invention) has the output signal of the output of the upper stage as the start signal, in the dual clock (CL0CK1 and CL0CK2).
- the first four shift register units SR SR2, SR3, SR4 realize the top-down gate drive scan output Gl, G2, G3, G4, and then the clock signal stops, entering the touch time.
- the clock signal is turned on again.
- CL0CK1 is high
- the output of the virtual shift register unit SRD1 is output high at GDI.
- the clock control terminal Rescan outputs a high level.
- T1 is turned on, the high level signal of GDI is transmitted to G4, and G4 is also high at this time, and the repeated scanning of the gate line G4 corresponding to SR4 is realized.
- the output signal of GDI is not connected to the pixel area and has no effect on the pixel display.
- GD2 as the start signal of SR5 will make G5 output high level, and the following SR5, SR6, SR7 will output high level signals in turn, and then scan G5, G6, G7... in order.
- the above description is only taking a high-level scan signal as an example. At this time, the corresponding switching transistors are all turned on at the high level. Similarly, according to the internal structure of the shift register and the voltage requirement of the pixel unit during the design of the display device, the scan signal is also It can be implemented with a low level, and the corresponding switching transistors are all turned on at a low level.
- Embodiments of the present invention also provide a display device including the above-described gate driving circuit.
- the display device provided by the embodiment of the present invention can repeatedly output the gate driving signal of the front gate driving shift register unit of the touch stage through the displacement delay module and the clock control end control repeat output module after the end of the touch phase, thereby being able to solve In the time-division-driven touch screen technology, the display caused by the interruption of the scan signal is poor.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Shift Register Type Memory (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/369,525 US9519372B2 (en) | 2013-09-29 | 2013-12-16 | Gate driving circuit for time division driving, method thereof and display apparatus having the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310456249.9A CN103489391B (zh) | 2013-09-29 | 2013-09-29 | 一种栅极驱动电路及栅线驱动方法、显示装置 |
| CN201310456249.9 | 2013-09-29 |
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| Publication Number | Publication Date |
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| WO2015043087A1 true WO2015043087A1 (zh) | 2015-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2013/089607 Ceased WO2015043087A1 (zh) | 2013-09-29 | 2013-12-16 | 栅极驱动电路及栅线驱动方法、显示装置 |
Country Status (2)
| Country | Link |
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| CN (1) | CN103489391B (zh) |
| WO (1) | WO2015043087A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3159885A4 (en) * | 2014-06-18 | 2017-12-13 | Boe Technology Group Co. Ltd. | Gate driving circuit, array substrate, display device, and driving method |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049796B (zh) * | 2014-05-19 | 2017-02-15 | 京东方科技集团股份有限公司 | 触摸显示屏及其分时驱动方法 |
| CN104793795B (zh) * | 2015-04-09 | 2018-01-16 | 昆山龙腾光电有限公司 | 触控感应线路及触控显示面板 |
| TWI588810B (zh) * | 2015-11-27 | 2017-06-21 | 友達光電股份有限公司 | 顯示驅動方法及其行動裝置 |
| CN107644605B (zh) * | 2016-07-22 | 2020-11-27 | 瀚宇彩晶股份有限公司 | 闸极驱动电路和显示装置 |
| CN106775078B (zh) * | 2016-12-08 | 2019-09-03 | 厦门天马微电子有限公司 | 触控显示面板、驱动方法及触控显示装置 |
| CN109411005B (zh) * | 2017-08-17 | 2020-12-22 | 京东方科技集团股份有限公司 | 移位寄存器单元、栅线驱动电路及其驱动方法和显示装置 |
| TWI630525B (zh) * | 2017-09-05 | 2018-07-21 | 友達光電股份有限公司 | 非嵌入式顯示觸控裝置及其觸控偵測方法 |
| CN108877625B (zh) * | 2018-07-06 | 2021-01-29 | 京东方科技集团股份有限公司 | 栅极驱动电路及其驱动方法、显示装置 |
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| CN102708926A (zh) * | 2012-05-21 | 2012-10-03 | 京东方科技集团股份有限公司 | 一种移位寄存器单元、移位寄存器、显示装置和驱动方法 |
| CN202838908U (zh) * | 2012-09-20 | 2013-03-27 | 北京京东方光电科技有限公司 | 栅极驱动电路、阵列基板和显示装置 |
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| JP5233080B2 (ja) * | 2006-05-10 | 2013-07-10 | セイコーエプソン株式会社 | 電気光学装置及び電子機器 |
| JP2008140489A (ja) * | 2006-12-04 | 2008-06-19 | Seiko Epson Corp | シフトレジスタ、走査線駆動回路、データ線駆動回路、電気光学装置及び電子機器 |
| KR20080051637A (ko) * | 2006-12-06 | 2008-06-11 | 삼성전자주식회사 | 쉬프트 레지스터 |
| JP5332485B2 (ja) * | 2008-10-10 | 2013-11-06 | セイコーエプソン株式会社 | 電気光学装置 |
| US8576187B2 (en) * | 2010-11-08 | 2013-11-05 | Au Optronics Corporation | Touch sensing device having a plurality of gate drivers on array adjacent to each of a plurality of touch modules |
| JP5758825B2 (ja) * | 2012-03-15 | 2015-08-05 | 株式会社ジャパンディスプレイ | 表示装置、表示方法、および電子機器 |
| CN203456069U (zh) * | 2013-09-29 | 2014-02-26 | 京东方科技集团股份有限公司 | 一种栅极驱动电路及显示装置 |
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2013
- 2013-09-29 CN CN201310456249.9A patent/CN103489391B/zh not_active Expired - Fee Related
- 2013-12-16 WO PCT/CN2013/089607 patent/WO2015043087A1/zh not_active Ceased
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| JP2001209349A (ja) * | 2000-01-26 | 2001-08-03 | New Japan Radio Co Ltd | 表示駆動装置 |
| CN102682727A (zh) * | 2012-03-09 | 2012-09-19 | 北京京东方光电科技有限公司 | 移位寄存器单元、移位寄存器电路、阵列基板及显示器件 |
| CN102708926A (zh) * | 2012-05-21 | 2012-10-03 | 京东方科技集团股份有限公司 | 一种移位寄存器单元、移位寄存器、显示装置和驱动方法 |
| CN202838908U (zh) * | 2012-09-20 | 2013-03-27 | 北京京东方光电科技有限公司 | 栅极驱动电路、阵列基板和显示装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3159885A4 (en) * | 2014-06-18 | 2017-12-13 | Boe Technology Group Co. Ltd. | Gate driving circuit, array substrate, display device, and driving method |
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| Publication number | Publication date |
|---|---|
| CN103489391B (zh) | 2015-12-30 |
| CN103489391A (zh) | 2014-01-01 |
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