WO2015035728A1 - 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
- Publication number
- WO2015035728A1 WO2015035728A1 PCT/CN2013/089616 CN2013089616W WO2015035728A1 WO 2015035728 A1 WO2015035728 A1 WO 2015035728A1 CN 2013089616 W CN2013089616 W CN 2013089616W WO 2015035728 A1 WO2015035728 A1 WO 2015035728A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shift register
- output
- register unit
- unit
- level
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 claims abstract description 48
- 230000003252 repetitive effect Effects 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 abstract description 8
- 101100310949 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SRD1 gene Proteins 0.000 description 16
- 238000010586 diagram Methods 0.000 description 6
- 101100310953 Arabidopsis thaliana SRD2 gene Proteins 0.000 description 5
- 101100388638 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ECM23 gene Proteins 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005669 field effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
- G09G3/2085—Special arrangements for addressing the individual elements of the matrix, other than by driving respective rows and columns in combination
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/15—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors
- H03K5/15013—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs
- H03K5/1506—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages
- H03K5/15093—Arrangements in which pulses are delivered at different times at several outputs, i.e. pulse distributors with more than two outputs with parallel driven output stages; with synchronously driven series connected output stages using devices arranged in a shift register
-
- 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
- G09G2310/0202—Addressing of scan or signal lines
-
- 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
- G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
-
- 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
Definitions
- the present invention relates to the field of display technologies, and in particular, to a gate driving circuit, a grid driving method, and a display device. Background technique
- display scanning can be realized by time-division driving, that is, pixel scanning is performed in the driving phase, scanning signal output is stopped in the touch phase, and scanning signals are continuously scanned for scanning after the touch phase ends.
- 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.
- 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 poor display caused by interruption of a scanning signal in a touch screen technology of time-division driving.
- 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 j+1 displacement register unit is connected in series with a displacement delay module;
- 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 repetition output module is connected to an output end of the j-n+1th stage shift register unit; the displacement delay module is configured to preset a gate scan signal after the jth stage shift register unit outputs After the touch time ends, the repeat output module is controlled to output a repeated scan signal to the output end of the j-n+1 stage shift register unit, so that the j-n+1 stage shift register unit is to the jth
- the stage shift register unit re-outputs the scan signal to the gate line, where n is a positive integer greater than or equal to one.
- the repeated output module is further connected to the reference power a blunt end, configured to control, by the voltage of the reference level terminal, the output of the repetitive output module to stop outputting to the j-n+1 stage shift register unit when the scan signal is repeatedly outputted by the jth stage shift register unit
- the terminal outputs a repeated scan signal.
- 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;
- the pull-down unit is further connected to the reference level terminal and the output control terminal of the first-stage virtual shift register unit, and is configured to control, by the voltage of the reference level terminal, the first-stage virtual shift register unit to stop passing the
- the output 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 level 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 the next level by the voltage of the reference level terminal
- the dummy shift register unit outputs a signal to control an output of the ith stage virtual shift register unit to stop outputting a repeated scan signal to an 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 and a source of the first switching transistor are connected to the displacement delay module, and a drain of the first switching transistor is connected to the jth stage The output of the 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 level end.
- the drain of the second switching transistor is connected to the first
- the drive signal of the gate line in the stage dummy shift register unit outputs the gate of the transistor.
- the repeated output module is further connected to the reference level end and the output end of the j+1th stage 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 level 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 of the first stage virtual shift register unit is coupled to an output of the jth stage shift register unit, the first level of virtual An output end of the shift register unit is connected to the output unit and an input end of the j+1th stage shift register unit;
- the output unit is configured to output a repeated scan signal to an output end of the j-stage shift register unit
- the pull-down unit is further connected to a reference level 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 level terminal.
- the output unit includes a first switching transistor, wherein a gate and a source of the first switching transistor are connected to the displacement delay module, and a drain of the first switching transistor is connected to the jth stage The output of the 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 j+1th stage shift register unit, and a source of the second switching transistor is connected to the reference level end
- 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 present invention provides a display device including the above-described gate drive circuit.
- a gate line driving method When the displacement delay module is located between an adjacent j-th stage shift register unit and a j+1th shift register unit, the method includes:
- the displacement delay module controls the repeated output module to output a repeated scan signal to the output end of the corresponding corresponding j-n+1th stage shift register unit;
- 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 The output of the j-n+1 stage shift register unit outputs a repeated scan signal.
- the gate driving circuit and the gate line driving method provided by the embodiment of the invention can repeatedly output the gate driving signal of the front-gate driving shift register unit in the touch stage by the displacement delay module after the touch phase is finished. Therefore, it is possible 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 provided in still another embodiment of the present invention.
- FIG. 4 is a schematic structural view of a gate driving circuit provided in 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 (the first stage shift register unit to the sixth stage shift register unit in FIG. 1) Take an example for explanation);
- 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+i stage shift register unit, and the displacement delay module is further connected to the repeat output module;
- the repetition output module 12 is connected to the output end of the j-n+1 stage shift register unit; the displacement delay module 11 is configured to control the repetition after the preset touch time ends after the gate scanning signal is outputted by the jth stage shift register unit
- the output module 12 outputs a repetitive scan signal to the output end of the j-n+1-stage shift register unit, so that the j-n+1-stage shift register unit to the j-th shift register unit re-outputs the scan signal to the gate line, wherein , n is a positive integer greater than or equal to 1.
- 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 repeatedly output 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 after the touch phase is finished, thereby solving the time-division driving.
- the display caused by the interruption of the scan signal is poor.
- a gate driving circuit includes a plurality of shift register array substrate row driving (GOA) units connected in series,
- each GOA unit In addition to the first and last GOA units, the output of each GOA unit is connected to the input of the next adjacent GOA unit, and the input of each GOA unit is connected to the output of the adjacent previous GOA 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 of the first shift register unit receives the frame start signal STV, the first shift register unit The output is connected to a gate line, and the input of the last shift register unit is connected to the output of its adjacent previous shift register unit.
- each gate driving shift register unit is connected to a gate line, and a driving signal is supplied to 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 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 repeated output module;
- the repetition output module 12 is connected to the output end of the j-n+1th stage shift register unit; the displacement delay module 11 is configured to control after the preset touch time ends after the gate scanning signal is outputted by the jth stage shift register unit
- the repetitive output module 12 outputs a repetitive scan signal to the output end of the j-n+1-stage shift register unit, so that the j-n+1-stage shift register unit to the j-th shift register unit re-outputs the scan signal to the gate line.
- n is a positive integer greater than or equal to 1.
- each shift register unit is connected to a corresponding gate line (G1-G6).
- the repeating output module 12 is further connected to the reference level terminal for repeatedly controlling the output module 12 to stop to the j-n by the voltage of the reference level terminal when the j-th shift register unit repeatedly outputs the scan signal.
- the output of the +1 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 output unit CK is configured to output a repeated scan signal to the output end of the j-n+1 stage shift register unit;
- the pull-down unit RSE is further connected to the reference level terminal and the output control terminal of the first-stage virtual shift register unit for controlling the level 1 virtual shift register unit to stop the output unit to the j-n+ by the voltage of the reference level terminal Output output of the 1-stage shift register unit Repeat the 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 terminal INPUT of the shift register unit SR4 Connect the output terminal of the shift register unit SR3 and connect 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; virtual shift register unit SRD2 The input terminal INPUT is connected to the output end of the virtual shift register unit SRD1, and is connected to a gate line GD2; the input terminal INPUT of the shift register unit SR5 is connected to the output end of the virtual shift register unit SRD2, and is connected to a gate line G5; The input terminal INPUT of the bit register unit SR6 is connected to the output terminal of the shift register unit SR5, Connecting a gate line G6.
- the output unit CK of the repetitive output module 12 is connected to the output end of the virtual shift register unit SRD1 and the output end of the shift register unit SR3 for signal output at the output end of the virtual shift register unit SRD1 corresponding to the output unit CK.
- the output of the shift register unit SR3 connected through the output unit CK is controlled to output a signal; thus, the repeated output of the SR3 and SR4 two-stage shift register units can be realized after the end of the touch phase, thereby improving the 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, and 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.
- the odd-numbered shift register unit or the dummy shift register unit receives the clock signal CLOCK1 at its first clock signal terminal CLK, and receives the clock signal opposite to the clock signal CLOCK1 at its second clock signal terminal CLKB, even-numbered
- the shift register unit or the dummy shift register unit receives the clock signal CLOCK2 at its first clock signal terminal CLK and the opposite of the clock signal CLOCK2 at its second clock signal terminal CLKB.
- the clock signal; in addition, the clock signal CLOCK1 is opposite to the clock signal CLOCK2.
- 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 CLOCK2, and the even-order shift is performed.
- the first clock signal terminal CLK of the bit register unit or the dummy shift register unit is connected to the system clock CLOCK2, and the second clock signal terminal is connected to the system clock CLOCK1.
- the reference voltage terminal VSS is connected to the reference voltage vss.
- the system clock 6 (including the input terminal signals of the shift register units of each stage, a set of system clock signals, the first clock signal CLOCK1, the second clock signal CLOCK2), wherein during the touch phase, the system clock The signal stops outputting.
- the high-level or low-level duty cycles of the system clock signals CLOCK1 and CLOCK2 are all 1:1 (that is, the duty ratios of CLOCK1 and CLOCK2 are respectively 50%), namely: CLOCK 1
- the low level signal of CLOCK2 starts.
- the next low level clock signal of CLOCK1 starts.
- the output of the high level signal is the same, no longer. Narration.
- the first shift register unit is SR1
- the input signal INPUT of the GOA unit SR1 is an active pulse signal, optionally as the frame start signal STV, and the system first clock signal CLOCK1 ends at the STV signal. After the output begins.
- the output unit CK includes a first switching transistor T1.
- the gate and source of the first switching transistor T1 are connected to the displacement delay module, and the drain of the first switching transistor T1 is connected to the j-n+1.
- 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 level 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 the input end of the first stage virtual shift register unit is connected to the output end of the jth stage shift register unit, and the output end of the i th stage virtual shift register unit
- the pull-down unit RSE is also connected to the reference level terminal and the output control terminal of the first stage virtual shift register unit for controlling the output signal of the first stage virtual shift register unit to the next stage virtual shift register unit by the voltage of the reference level terminal. In order 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 and a source of the first switching transistor T1 are connected to a displacement delay module, and a drain of the first switching transistor T1 is connected to a j-th 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 level 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 repeated output module 12 is further connected to the reference level terminal and the j+1th level.
- the output end of the shift register unit is configured to stop the output of the output of the j-stage shift register unit by repeating the voltage output of the reference level terminal when the scan signal is outputted by the j+1th stage shift register unit Scan the signal.
- the repeating output module 12 includes an output unit CK and a pull-down unit RES;
- the shift delay module 11 includes a first-stage virtual shift register unit, wherein the input of the first-stage virtual shift register unit is connected to the j-th shift At the output of the register unit, the output of the first stage virtual shift register unit is coupled to the output unit CK of the repeat output module 12 and the input of the j+1th stage shift register unit.
- the output unit CK is used to output a repetitive scan signal to the output of the j-stage shift register unit;
- the pull-down unit RES is also connected to the reference level terminal, the output terminal of the j+1th stage 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 stage shift register unit.
- the first stage virtual shift register unit stops the output of the repeated scan signal to the output of the j-stage shift register unit by the voltage of the reference level terminal.
- the output unit CK includes a first switching transistor T1, the gate and the source of the first switching transistor T1 are connected to the displacement delay module, and the drain of the first switching transistor T1 is connected to the output end of the j-th 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 j+1th stage shift register unit, the source of the second switching transistor T2 is connected to the reference level terminal, and the second switching transistor is The drain is connected to the output control terminal PU of SRD1 in the first stage dummy shift register unit (for example, the gate of the drive signal output transistor of the gate line in the first stage dummy shift register unit).
- the displacement delay module 11 includes only one dummy shift register unit SRD1, and outputs a scan signal on the gate line G4 after receiving the touch by outputting a repeated scan signal to the output terminal of the shift register unit SR4. Repeat the output.
- the gate line driving method of the embodiment of the present invention includes: Step 1. After the touch time ends, the displacement delay module controls the repeated output module to the corresponding corresponding j-n+1th stage shift register unit. The output terminal outputs a repeated scan signal; Step 2, the j-n+1th stage shift register unit to the jth stage shift register unit re-outputs 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+1-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 output signal of the front-gate drive shift register unit of the touch stage is repeatedly outputted by the displacement delay module controlling the repeated output module, thereby being able to solve the time sharing In the touch panel technology driven, the display caused by the interruption of the scan signal is poor.
- 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 (CLOCK1 and Under CLOCK2), 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... in order.
- 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 (CLOCK1 and Under CLOCK2), 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.
- CLOCK1 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 high level signal of GD2 is transmitted to G4.
- G4 is also high, and thus the 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.
- 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... in turn.
- 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 (CLOCK1 and CLOCK2) Under the work, the first four shift register units SR1, 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.
- CLOCK1 is high
- the output of the virtual shift register unit SRD1 outputs a high level at GDI.
- T1 is turned on, and the GDI is high.
- the signal 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 gate driving circuit and the gate line driving method provided by the embodiment of the invention can repeatedly output the gate driving signal of the front-gate driving shift register unit in the touch stage by the displacement delay module after the touch phase is finished. Therefore, it is possible to solve the display failure caused by the interruption of the scan signal in the touch screen technology of the time division drive.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Shift Register Type Memory (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/368,582 US9443462B2 (en) | 2013-09-12 | 2013-12-17 | Gate driving circuit, gate line driving method and display device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310415149.1 | 2013-09-12 | ||
CN201310415149.1A CN103456259B (zh) | 2013-09-12 | 2013-09-12 | 一种栅极驱动电路及栅线驱动方法、显示装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015035728A1 true WO2015035728A1 (zh) | 2015-03-19 |
Family
ID=49738573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2013/089616 WO2015035728A1 (zh) | 2013-09-12 | 2013-12-17 | 栅极驱动电路及栅线驱动方法、显示装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9443462B2 (zh) |
CN (1) | CN103456259B (zh) |
WO (1) | WO2015035728A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110010054A (zh) * | 2019-05-06 | 2019-07-12 | 京东方科技集团股份有限公司 | 一种栅极驱动电路、显示面板、显示装置 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103943055B (zh) * | 2014-03-27 | 2016-05-11 | 京东方科技集团股份有限公司 | 一种栅极驱动电路及其驱动方法、显示装置 |
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 |
CN104021750B (zh) * | 2014-05-30 | 2016-06-08 | 京东方科技集团股份有限公司 | 移位寄存器单元、栅极驱动电路及驱动方法和显示装置 |
CN104078015B (zh) * | 2014-06-18 | 2016-04-06 | 京东方科技集团股份有限公司 | 栅极驱动电路、阵列基板、显示装置及驱动方法 |
CN104537994B (zh) | 2014-12-30 | 2017-04-12 | 深圳市华星光电技术有限公司 | 一种应用于平板显示器的goa驱动电路及平板显示器 |
CN104820520B (zh) * | 2015-05-08 | 2017-10-20 | 厦门天马微电子有限公司 | 阵列基板、触控显示面板和阵列基板的驱动方法 |
CN104900211B (zh) * | 2015-06-30 | 2017-04-05 | 京东方科技集团股份有限公司 | 一种栅极驱动电路及其驱动方法、显示装置 |
TWI664618B (zh) * | 2017-11-13 | 2019-07-01 | 友達光電股份有限公司 | 閘極驅動器及其觸控顯示裝置 |
CN108172164A (zh) * | 2018-01-03 | 2018-06-15 | 厦门天马微电子有限公司 | 一种显示面板及其驱动方法、显示装置 |
CN108491104B (zh) * | 2018-03-05 | 2021-03-23 | 昆山龙腾光电股份有限公司 | 一种栅极驱动电路及触控显示面板 |
CN108564912B (zh) * | 2018-04-18 | 2021-01-26 | 京东方科技集团股份有限公司 | 移位寄存器电路及驱动方法、显示装置 |
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 |
TWI728783B (zh) * | 2020-04-21 | 2021-05-21 | 友達光電股份有限公司 | 顯示裝置 |
CN111812902B (zh) * | 2020-07-30 | 2023-04-14 | 上海中航光电子有限公司 | 阵列基板、显示面板及显示装置 |
CN114974127B (zh) * | 2022-06-30 | 2024-06-14 | 武汉天马微电子有限公司 | 显示面板及其显示驱动电路和显示驱动方法 |
CN115691382A (zh) * | 2022-09-26 | 2023-02-03 | 武汉天马微电子有限公司 | 一种移位寄存电路、显示面板及显示装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI316219B (en) * | 2005-08-11 | 2009-10-21 | Au Optronics Corp | A three-level driving shift register |
TWI323869B (en) * | 2006-03-14 | 2010-04-21 | Au Optronics Corp | Shift register circuit |
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 |
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 |
CN203444734U (zh) * | 2013-09-12 | 2014-02-19 | 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 |
-
2013
- 2013-09-12 CN CN201310415149.1A patent/CN103456259B/zh active Active
- 2013-12-17 US US14/368,582 patent/US9443462B2/en active Active
- 2013-12-17 WO PCT/CN2013/089616 patent/WO2015035728A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110010054A (zh) * | 2019-05-06 | 2019-07-12 | 京东方科技集团股份有限公司 | 一种栅极驱动电路、显示面板、显示装置 |
Also Published As
Publication number | Publication date |
---|---|
CN103456259A (zh) | 2013-12-18 |
CN103456259B (zh) | 2016-03-30 |
US9443462B2 (en) | 2016-09-13 |
US20150302790A1 (en) | 2015-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2015035728A1 (zh) | 栅极驱动电路及栅线驱动方法、显示装置 | |
WO2015043087A1 (zh) | 栅极驱动电路及栅线驱动方法、显示装置 | |
WO2017113984A1 (zh) | 移位寄存器单元及其驱动方法、栅极驱动电路和显示装置 | |
TWI483230B (zh) | 閘極驅動器及顯示面板的閘極線驅動方法 | |
EP3306602B1 (en) | Shift register, gate electrode drive circuit and display device | |
WO2016065850A1 (zh) | Goa单元及驱动方法、goa电路和显示装置 | |
WO2018040768A1 (zh) | 移位寄存器单元、栅极扫描电路 | |
WO2016123968A1 (zh) | 移位寄存器单元、栅极驱动电路及显示装置 | |
WO2014153863A1 (zh) | 移位寄存器单元、栅极驱动电路及显示装置 | |
WO2015000271A1 (zh) | 移位寄存器单元及驱动方法、移位寄存器电路及显示装置 | |
TWI415063B (zh) | 雙向傳遞移位暫存器的驅動架構 | |
WO2014169536A1 (zh) | 移位寄存器单元及其驱动方法、栅极驱动电路及显示装置 | |
WO2014124571A1 (zh) | 双向移位寄存器单元、双向移位寄存器及显示装置 | |
WO2015027600A1 (zh) | 移位寄存器单元、移位寄存器及显示装置 | |
WO2013177918A1 (zh) | 移位寄存器单元、移位寄存器电路、阵列基板及显示器件 | |
WO2020168798A1 (zh) | 移位寄存器单元及其驱动方法、栅极驱动电路及其驱动方法和显示装置 | |
WO2017181700A1 (zh) | 移位寄存器单元、栅极驱动装置、显示装置和驱动方法 | |
JP5819514B2 (ja) | シフトレジスタ、ドライバ回路、表示装置 | |
WO2017181481A1 (zh) | 减小时钟信号负载的cmos goa电路 | |
WO2015109769A1 (zh) | 移位寄存器单元、栅极驱动电路及其驱动方法、显示装置 | |
TW201019306A (en) | Gate driver and operating method thereof | |
WO2014173025A1 (zh) | 移位寄存器单元、栅极驱动电路与显示器件 | |
WO2018201690A1 (zh) | 扫描驱动电路及其驱动方法、阵列基板和显示装置 | |
WO2018059093A1 (zh) | 移位寄存器单元、栅极扫描电路、驱动方法、显示装置 | |
WO2017185822A1 (zh) | 移位寄存器、栅极驱动电路、阵列基板 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 14368582 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13893232 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205 DATED 07/07/2016) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 13893232 Country of ref document: EP Kind code of ref document: A1 |