CN104934010A - Driving method of display panel, grid drive circuit and display apparatus - Google Patents
Driving method of display panel, grid drive circuit and display apparatus Download PDFInfo
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- CN104934010A CN104934010A CN201510409763.6A CN201510409763A CN104934010A CN 104934010 A CN104934010 A CN 104934010A CN 201510409763 A CN201510409763 A CN 201510409763A CN 104934010 A CN104934010 A CN 104934010A
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Abstract
The present invention provides a driving method of a display panel, comprising the steps of: determining a corresponding scanning frequency when each frame image is displayed according to an operation command; if the scanning frequency during displaying of the previous frame image is different from the scanning frequency during displaying of the next frame image, scanning the display panel with a first scanning frequency and providing a first voltage for a grid line of the display panel as a turn-off voltage when the previous frame image is displayed, and scanning the display panel with a second scanning frequency and providing a second voltage for the grid line of the display panel as a turn-off voltage when the next frame image is displayed, wherein the first voltage is different from the second voltage. The present invention also provides a grid drive circuit and a display apparatus. When the display apparatus is driven by the driving method provided by the present invention, no scintillation change which can be easily perceived by human eyes is generated in the process of conversion from a static image to a dynamic image or conversion from a dynamic image to a static image.
Description
Technical field
The present invention relates to display technique field, particularly, the driving method relating to a kind of display panel, the gate driver circuit performing this driving method and a kind of display device comprising this gate driver circuit.
Background technology
Display device both may be used for showing static image, also may be used for showing dynamic image.Sweep frequency when the image driving display device display static is usually lower, and sweep frequency when driving display device to show dynamic image is usually higher, thus reaches the object reducing energy consumption.
When utilizing display device to show image, always there is dynamic image to still image conversion (such as, playing film midway to suspend) or still image to the situation of dynamic image conversion (such as, replaying the film of time-out).
But, in the process that still image is changed to still image to dynamic image conversion or dynamic image, be always produced as the scintillation that human eye is discovered, reduce Consumer's Experience degree.
Therefore, how to reduce the scintillation produced in the process that still image changes to still image to dynamic image conversion or dynamic image and become this area technical matters urgently to be resolved hurrily.
Summary of the invention
The driving method that the object of the present invention is to provide a kind of display panel, the gate driver circuit performing this driving method and a kind of display device comprising this gate driver circuit.When utilizing described driving method to drive described display device, when in the process that still image is changed to dynamic image conversion or dynamic image to still image, scintillation is not easily discovered.
To achieve these goals, as one aspect of the present invention, provide a kind of driving method of display panel, wherein, described driving method comprises:
Determine sweep frequency corresponding during the every two field picture of display according to operational order;
When the sweep frequency showing previous frame image is different from the sweep frequency of a two field picture after display, described driving method comprises:
Before display during a two field picture, with the first sweep frequency, described display panel is scanned, and be the first voltage to the shutoff voltage that the grid line of described display panel provides;
After the display during a two field picture, scan with the second sweep frequency to described display panel, and be the second voltage to the shutoff voltage that the grid line of described display panel provides, described first voltage is different from described second voltage, wherein:
When described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage;
When described first sweep frequency is lower than described second sweep frequency, the absolute value of described second voltage is greater than the absolute value of described first voltage.
Preferably, when the sweep frequency of the rear two field picture of the sweep frequency showing previous frame image and display is identical, the shutoff voltage on described grid line is the one that in described first voltage and described second voltage, absolute value is larger.
Preferably, described first sweep frequency is 30Hz, and described second sweep frequency is 60Hz.
Preferably, described first voltage is-8V, and described second voltage is-4V.
Preferably, when described operational order is when starting any one in play instruction, time-out play instruction, stopping play instruction, the sweep frequency of display previous frame image is set to be different from the sweep frequency of a two field picture after showing.
As another aspect of the present invention, a kind of gate driver circuit of display panel is provided, described gate driver circuit can export sweep signal according to preset frequency, described preset frequency comprises the first sweep frequency and is different from the second sweep frequency of this first sweep frequency, wherein, described gate driver circuit comprises control signal receiving element and shift register, described control signal receiving element can receive first frequency control signal and second frequency control signal, described first frequency control signal and described second frequency control signal can be passed to described shift register by described control signal receiving element, described first frequency control signal can control described shift register and export sweep signal according to described first sweep frequency, described second frequency control signal can control described shift register and export sweep signal according to described second sweep frequency,
When described control signal receiving element show adjacent two two field picture time receive described first frequency control signal and described second frequency control signal respectively time, described shift register can:
Before display during a two field picture, with the first sweep frequency, described display panel is scanned, and be the first voltage to the shutoff voltage that the grid line of described display panel provides;
After the display during a two field picture, scan with the second sweep frequency to described display panel, and be the second voltage to the shutoff voltage that the grid line of described display panel provides, described first voltage is different from described second voltage, wherein:
When described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage;
When described first sweep frequency is lower than described second sweep frequency, the absolute value of described second voltage is greater than the absolute value of described first voltage.
Preferably, when the sweep frequency of the rear two field picture of the sweep frequency showing previous frame image and display is identical, the shutoff voltage on described grid line is the one that in described first voltage and described second voltage, absolute value is larger.
Preferably, described first sweep frequency is 30Hz, and described second sweep frequency is 60Hz.
Preferably, described first voltage is-8V, and described second voltage is-4V.
Preferably, described shift register comprises the stages shift deposit unit of cascade, for exporting the first power output end of described first voltage, for the second voltage output end and the voltage selection unit of described second voltage, described shifting deposit unit comprises low level signal input end, described voltage selection unit is connected with described control signal receiving element, when described control signal receiving element exports described first frequency control signal, the described low level signal input end of described shifting deposit unit at different levels is electrically connected with described first voltage input end by described voltage selection unit, when described control signal receiving element exports described second frequency control signal, the described low level signal input end of described shifting deposit unit at different levels is electrically connected with described second voltage input end by described voltage selection unit.
As another aspect of the present invention, a kind of display device is provided, described display device comprises display panel, gate driver circuit and time schedule controller, described gate driver circuit is used for providing sweep signal for described display panel, wherein, described gate driver circuit is above-mentioned gate driver circuit provided by the present invention, and described time schedule controller can determine described preset frequency according to operational order, and generates described frequency control signal.
Preferably, when described operational order is when starting any one in play instruction, time-out play instruction, stopping play instruction, described sequential control can before display a two field picture time generate described first frequency control signal, and after the display a two field picture time generate described second frequency control signal.
When utilizing driving method provided by the present invention to drive display device, can not produce in the process that still image is changed to still image to dynamic image conversion or dynamic image easily the flicker discovered by human eye change.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 (a) is in existing liquid crystal indicator, when sweep frequency is 60Hz, and the voltage fluctuation situation when showing adjacent two two field picture on pixel;
Fig. 1 (b) is in existing liquid crystal indicator, when sweep frequency is 30Hz, and the voltage fluctuation situation when showing adjacent two two field picture on pixel;
Fig. 2 (a) is when utilizing driving method provided by the present invention to drive display device, sweep frequency for 60Hz, the voltage fluctuation situation when showing adjacent two two field picture on pixel;
Fig. 2 (b) is when utilizing driving method provided by the present invention to drive display device, sweep frequency for 30Hz, the voltage fluctuation situation when showing adjacent two two field picture on pixel;
Fig. 3 is the module diagram of display device provided by the present invention.
Description of reference numerals
100: display panel 200: gate driver circuit
210: control signal receiving element 220: shift register
300: time schedule controller
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
Repeatedly study discovery through the present inventor, when dynamic image is changed to still image, or when still image is changed to dynamic image, the reason producing flicker is as follows:
When utilizing liquid crystal indicator to show image, grid line is lined by line scan.When display one two field picture, gate driver circuit provides high level signal (in the prior art for grid line, when sweep frequency is 60Hz and when sweep frequency is 30Hz, high level signal is all identical, such as, can 20V be), to open the thin film transistor (TFT) of display panels, thus be the capacitor charging that public electrode and pixel electrode are formed.Between two two field pictures, such as, for grid line provides low level signal (in the prior art, when sweep frequency is 60Hz and when sweep frequency is 30Hz, low level signal is all identical, can be-8V), to be turned off by thin film transistor (TFT).
Shown in dashed curve in Fig. 1 (a) be sweep frequency be 60Hz time, in liquid crystal indicator, the voltage fluctuation situation when showing adjacent two two field picture on pixel.Shown in dashed curve in Fig. 1 (b) be sweep frequency be 30Hz time, in liquid crystal indicator, the voltage fluctuation situation when showing adjacent two two field picture on pixel.
When liquid crystal indicator shows, calculate the voltage retention in each pixel cell according to following formula (1):
VRH＝V
rms/V
peak(1)
Wherein, VRH is the voltage retention of pixel cell;
V
rmsfor the root-mean-square valve of liquid crystal voltage;
V
peakfor the peak value of liquid crystal voltage.
Known by Fig. 1 (a) and Fig. 1 (b), liquid crystal voltage peak value when liquid crystal voltage peak value when sweep frequency is 60Hz is 30Hz with sweep frequency is identical.
Liquid crystal voltage in pixel cell maintained by memory capacitance, and memory capacitance then formed by grid line and the equitant part of public electrode, and therefore, memory capacitance depends on the voltage on common electric voltage and grid line.When sweep frequency is 60Hz, the time of memory capacitance electric leakage is shorter, and when sweep frequency is 30Hz, the electric leakage time of memory capacitance is relatively long.Therefore, when the sweep signal of next frame image arrives, the electricity stored when dump energy will be 30Hz more than sweep frequency in memory capacitance when sweep frequency is 60Hz.The root-mean-square valve which results in liquid crystal voltage when sweep frequency is 60Hz is same as greatly the root-mean-square valve of liquid crystal voltage when sweep frequency is 30Hz, thus the voltage retention that the voltage retention that result in when sweep frequency is 60Hz is greater than sweep frequency when being 30Hz.
Due to the principal element of flicker level when voltage retention is impact display, therefore, flicker level when sweep frequency is 60Hz is different from flicker level when sweep frequency is 30Hz, particularly, and flicker level when flicker level when sweep frequency is 60Hz will be 30Hz lower than sweep frequency.Therefore, show still image change to dynamic image time or display dynamic image change to still image time, the flicker level of display device has change, also easily aware by human eye.
In order to solve can being changed by the flicker of Human Perception of causing because flicker level is different, as one aspect of the present invention, provide a kind of driving method of display panel, wherein, described driving method comprises:
Determine sweep frequency corresponding during the every two field picture of display according to operational order;
When the sweep frequency showing previous frame image is different from the sweep frequency of a two field picture after display, described driving method comprises:
Before display during a two field picture, utilize the first sweep frequency to scan described display panel, and be the first voltage to the shutoff voltage that the grid line of described display panel provides;
After the display during a two field picture, utilize the second sweep frequency to scan described display panel, and be the second voltage to the shutoff voltage that the grid line of described display panel provides, described first voltage is different from described second voltage, wherein:
When described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage;
When described first sweep frequency is lower than described second sweep frequency, the absolute value of described second voltage is greater than the absolute value of described first voltage.
It is to be understood that " operational order " described herein can comprise and start play instruction, suspend play instruction, stop play instruction and some other operation etc.Can be inputted by operator, also can be automatically performed by application program.
In the present invention, different operational orders may correspond to different sweep frequencies.Such as, when described operational order be start play instruction, suspend play instruction, the instruction that stops play instruction etc. that display frame generation sound change time, the sweep frequency of a two field picture after the different and described play instruction of the sweep frequency of described play instruction previous frame image.
Known by foregoing description, the electricity that memory capacitance in pixel cell stores number be jointly determined by the voltage on grid line and common electric voltage.Usually, in whole procedure for displaying, common electric voltage is constant, therefore, the electricity that memory capacitance in pixel cell stores number be determined by the voltage on grid line.Due to sweep frequency be one larger in first frequency and second frequency time, memory capacitance is shorter for discharge time, and when sweep frequency is one less in first frequency and second frequency, memory capacitance is relatively long for discharge time.The root-mean-square valve of the liquid crystal voltage when root-mean-square valve of liquid crystal voltage when being second frequency to make sweep frequency is first frequency with sweep frequency is as far as possible close, only needs to reduce the absolute value being supplied to the shutoff voltage of grid line when sweep frequency is one larger in first frequency and second frequency.
Below with the situation of " when described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage " be example introduce provided by the present invention to the principle of driving method.
Absolute value due to the second voltage is less than the absolute value of the first voltage, and therefore, the electricity that the memory capacitance that the second voltage and common electric voltage are formed stores is less than the electricity that memory capacitance that the first voltage and common electric voltage formed stores.Although the discharge time of memory capacitance is shorter when sweep frequency is second frequency, when sweep frequency is first frequency, the discharge time of memory capacitance is longer, but, due to sweep frequency for electricity that memory capacitance during first frequency stores is greater than the electricity that sweep frequency stores for memory capacitance during second frequency, therefore, sweep signal to next frame image is come interim, and the discharge capacity of sweep frequency to be the discharge capacity of the memory capacitance of first frequency and sweep frequency the be memory capacitance of second frequency is more close.The root-mean-square valve of the liquid crystal voltage when root-mean-square valve of liquid crystal voltage when this just can make sweep frequency be second frequency is first frequency with sweep frequency is as far as possible close, and then voltage retention when making sweep frequency be second frequency and sweep frequency voltage retention when being first frequency is more close, the flicker level when flicker level shown when also making sweep frequency be first frequency and sweep frequency are second frequency is more close.
The principle of work of the situation of " when described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage " and the principle of above-mentioned situation similar, repeat no more here.
It can thus be appreciated that, when utilizing driving method provided by the present invention to drive display device, can not produce in the process that still image is changed to still image to dynamic image conversion or dynamic image easily the flicker discovered by human eye change.
In the present invention, the level height of sweep signal and shutoff voltage is not specifically limited.Such as, when sweep signal is high level voltage, shutoff voltage is then low level voltage; When sweep signal is low level voltage, shutoff voltage is then high level voltage.
In order to improve travelling speed, preferably, when in whole procedure for displaying, when all two field pictures are all scanned into line scanning according to the first sweep frequency or second, the shutoff voltage on described grid line is the one that in described first voltage and described second voltage, absolute value is larger.Further, one that in described first voltage and described second voltage, absolute value is larger is utilized can to reduce as the shutoff voltage of grid line with the flicker of one larger in the first sweep frequency and the second sweep frequency for producing during frequency sweeping display panel.
In the present invention, all do not have special regulation to the concrete numerical value of the first sweep frequency and the second sweep frequency, as one preferred embodiment, described first sweep frequency can be 30Hz, and described second sweep frequency can be 60Hz.When showing still image, sweep frequency can be 30Hz, and when video display, sweep frequency can be 60Hz.
In a kind of embodiment of the present invention, sweep signal is high level signal, and shutoff voltage is low level signal, and preferably, described first voltage is-8V, and described second voltage is-4V.
Shown in Fig. 2 (a) is when utilizing driving method provided by the present invention to drive display device, sweep frequency for 60Hz, voltage fluctuation situation when showing adjacent two two field picture on pixel, and, when sweep frequency is 60Hz, the shutoff voltage on grid line is second voltage of-4V.
Fig. 2 (b) is when utilizing driving method provided by the present invention to drive display device, sweep frequency for 30Hz, voltage fluctuation situation when showing adjacent two two field picture on pixel, further, when sweep frequency is 30Hz, the shutoff voltage on grid line is second voltage of-8V.
Known by Fig. 2 (a) and Fig. 2 (b), before display next frame image, voltage when sweep frequency is 60Hz in memory capacitance and the sweep frequency voltage that to be 30Hz be in memory capacitance is identical, therefore, electrical leakage quantity when electrical leakage quantity when sweep frequency is 60Hz is 30Hz with sweep frequency is identical.The root-mean-square valve of the liquid crystal voltage when root-mean-square valve of liquid crystal voltage when this just makes sweep frequency be 60Hz (second frequency) is 30Hz (first frequency) with sweep frequency is as far as possible close, and then voltage retention when making sweep frequency be second frequency and sweep frequency voltage retention when being first frequency is more close, the flicker level when flicker level shown when also making sweep frequency be first frequency and sweep frequency are second frequency is more close, therefore, can not produce easily aware by beholder.
As another aspect of the present invention, provide a kind of gate driver circuit 200 of display panel 100, this gate driver circuit 200 is for performing above-mentioned driving method.Particularly, gate driver circuit 200 can export sweep signal according to preset frequency, described preset frequency comprises the first sweep frequency and is different from the second sweep frequency of this first sweep frequency, wherein, as shown in Figure 3, gate driver circuit 200 comprises control signal receiving element 210 and shift register 220, described control signal receiving element 210 can receive first frequency control signal and second frequency control signal, and described first frequency control signal and described second frequency control signal can be passed to shift register 220 by control signal receiving element 210, described first frequency control signal can control shift register 220 and export sweep signal according to described first sweep frequency, described second frequency control signal can control shift register 220 and export sweep signal according to described second sweep frequency,
When control signal receiving element 210 show adjacent two two field picture time receive described first frequency control signal and described second frequency control signal respectively time, shift register 220 can:
Before display during a two field picture, with the first sweep frequency, display panel 100 is scanned, and be the first voltage to the shutoff voltage that the grid line of display panel 100 provides;
After the display during a two field picture, scan with the second sweep frequency to display panel 100, and be the second voltage to the shutoff voltage that the grid line of display panel 100 provides, described first voltage is different from described second voltage, wherein:
When described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage;
When described first sweep frequency is lower than described second sweep frequency, the absolute value of described second voltage is greater than the absolute value of described first voltage.
It is pointed out that in the present invention, utilize time schedule controller 300 to generate first frequency control signal and second frequency control signal.Shift register can provide two kinds of different shutoff voltages.Above describe in detail and provide the different shutoff voltage principle to eliminating the flicker that can be readily perceptible by the human eye of display device when showing according to different sweep frequencies, repeated no more here.
Utilize gate driver circuit provided by the present invention can perform above-mentioned driving method provided by the present invention, thus can make display device still image can not produce in dynamic image conversion or the process changed to still image of dynamic image easily the flicker discovered by human eye change.
Preferably, when the sweep frequency of the rear two field picture of the sweep frequency showing previous frame image and display is identical, the shutoff voltage on described grid line is the one that in described first voltage and described second voltage, absolute value is larger.
As a kind of embodiment of we, described first sweep frequency is 30Hz, and described second sweep frequency is 60Hz.
Preferably, described first voltage is-8V, and described second voltage is-4V.
In the present invention, special restriction is not done to the concrete structure of shift register 220.Preferably, described shift register comprises the stages shift deposit unit of cascade, for exporting the first power output end of described first voltage, for the second voltage output end and the voltage selection unit of described second voltage, described shifting deposit unit comprises low level signal input end, described voltage selection unit is connected with described control signal receiving element, when described control signal receiving element exports described first frequency control signal, the described low level signal input end of described shifting deposit unit at different levels is electrically connected with described first voltage input end by described voltage selection unit, when described control signal receiving element exports described second frequency control signal, the described low level signal input end of described shifting deposit unit at different levels is electrically connected with described second voltage input end by described voltage selection unit.
As another aspect of the invention, a kind of display device is provided, as shown in Figure 3, described display device comprises display panel 100, gate driver circuit 200 and time schedule controller 300, gate driver circuit 200 is for providing sweep signal for display panel 100, and wherein, gate driver circuit 200 is above-mentioned gate driver circuit provided by the present invention, time schedule controller 300 can determine described preset frequency according to operational order, and generates described frequency control signal.
As a kind of embodiment of the present invention, when described operational order is when starting any one in play instruction, time-out play instruction, stopping play instruction, described sequential control can before display a two field picture time generate described first frequency control signal, and after the display a two field picture time generate described second frequency control signal.
It is easily understood that the display panel in display device provided by the present invention is display panels.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (12)
1. a driving method for display panel, is characterized in that, described driving method comprises:
Determine sweep frequency corresponding during the every two field picture of display according to operational order;
When the sweep frequency showing previous frame image is different from the sweep frequency of a two field picture after display, described driving method comprises:
Before display during a two field picture, with the first sweep frequency, described display panel is scanned, and be the first voltage to the shutoff voltage that the grid line of described display panel provides;
After the display during a two field picture, scan with the second sweep frequency to described display panel, and be the second voltage to the shutoff voltage that the grid line of described display panel provides, described first voltage is different from described second voltage, wherein:
When described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage;
When described first sweep frequency is lower than described second sweep frequency, the absolute value of described second voltage is greater than the absolute value of described first voltage.
2. driving method according to claim 1, it is characterized in that, when the sweep frequency of the rear two field picture of the sweep frequency showing previous frame image and display is identical, the shutoff voltage on described grid line is the one that in described first voltage and described second voltage, absolute value is larger.
3. driving method according to claim 1 and 2, is characterized in that, described first sweep frequency is 30Hz, and described second sweep frequency is 60Hz.
4. driving method according to claim 3, is characterized in that, described first voltage is-8V, and described second voltage is-4V.
5. driving method according to claim 1 and 2, it is characterized in that, when described operational order is when starting any one in play instruction, time-out play instruction, stopping play instruction, be set to the sweep frequency of display previous frame image to be different from the sweep frequency of a two field picture after showing.
6. the gate driver circuit of a display panel, described gate driver circuit can export sweep signal according to preset frequency, described preset frequency comprises the first sweep frequency and is different from the second sweep frequency of this first sweep frequency, it is characterized in that, described gate driver circuit comprises control signal receiving element and shift register, described control signal receiving element can receive first frequency control signal and second frequency control signal, described first frequency control signal and described second frequency control signal can be passed to described shift register by described control signal receiving element, described first frequency control signal can control described shift register and export sweep signal according to described first sweep frequency, described second frequency control signal can control described shift register and export sweep signal according to described second sweep frequency,
When described control signal receiving element show adjacent two two field picture time receive described first frequency control signal and described second frequency control signal respectively time, described shift register can:
Before display during a two field picture, with the first sweep frequency, described display panel is scanned, and be the first voltage to the shutoff voltage that the grid line of described display panel provides;
After the display during a two field picture, scan with the second sweep frequency to described display panel, and be the second voltage to the shutoff voltage that the grid line of described display panel provides, described first voltage is different from described second voltage, wherein:
When described first sweep frequency is higher than described second sweep frequency, the absolute value of described second voltage is less than the absolute value of described first voltage;
When described first sweep frequency is lower than described second sweep frequency, the absolute value of described second voltage is greater than the absolute value of described first voltage.
7. gate driver circuit according to claim 6, it is characterized in that, when the sweep frequency of the rear two field picture of the sweep frequency showing previous frame image and display is identical, the shutoff voltage on described grid line is the one that in described first voltage and described second voltage, absolute value is larger.
8. the gate driver circuit according to claim 6 or 7, is characterized in that, described first sweep frequency is 30Hz, and described second sweep frequency is 60Hz.
9. gate driver circuit according to claim 8, is characterized in that, described first voltage is-8V, and described second voltage is-4V.
10. the gate driver circuit according to claim 6 or 7, it is characterized in that, described shift register comprises the stages shift deposit unit of cascade, for exporting the first power output end of described first voltage, for the second voltage output end and the voltage selection unit of described second voltage, described shifting deposit unit comprises low level signal input end, described voltage selection unit is connected with described control signal receiving element, when described control signal receiving element exports described first frequency control signal, the described low level signal input end of described shifting deposit unit at different levels is electrically connected with described first voltage input end by described voltage selection unit, when described control signal receiving element exports described second frequency control signal, the described low level signal input end of described shifting deposit unit at different levels is electrically connected with described second voltage input end by described voltage selection unit.
11. 1 kinds of display device, described display device comprises display panel, gate driver circuit and time schedule controller, described gate driver circuit is used for providing sweep signal for described display panel, it is characterized in that, described gate driver circuit is the gate driver circuit in claim 6 to 10 described in any one, described time schedule controller can determine described preset frequency according to operational order, and generates described frequency control signal.
12. display device according to claim 11, it is characterized in that, when described operational order is when starting any one in play instruction, time-out play instruction, stopping play instruction, described sequential control can before display a two field picture time generate described first frequency control signal, and after the display a two field picture time generate described second frequency control signal.
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| US10192506B2 (en) | 2017-03-20 | 2019-01-29 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Driving method for display panel, timing controller and liquid crystal display |
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| CN105761704A (en) * | 2016-05-20 | 2016-07-13 | 深圳市华星光电技术有限公司 | Display panel and driving circuit and driving method thereof |
| WO2018170984A1 (en) * | 2017-03-20 | 2018-09-27 | 深圳市华星光电技术有限公司 | Display panel driving method and timing controller, and liquid crystal display |
| US10192506B2 (en) | 2017-03-20 | 2019-01-29 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Driving method for display panel, timing controller and liquid crystal display |
| CN110085173A (en) * | 2019-06-19 | 2019-08-02 | 上海天马有机发光显示技术有限公司 | Driving method, driving chip and the display device of display panel |
| CN112785979A (en) * | 2019-11-01 | 2021-05-11 | 上海和辉光电有限公司 | Driving method and system of OLED display panel |
| US11227551B2 (en) | 2019-11-01 | 2022-01-18 | Everdisplay Optronics (Shanghai) Co., Ltd | Driving method and system for OLED display panel |
| CN112785979B (en) * | 2019-11-01 | 2022-06-24 | 上海和辉光电股份有限公司 | Driving method and system of OLED display panel |
| CN112331123A (en) * | 2020-11-18 | 2021-02-05 | 合肥芯颖科技有限公司 | Sequential signal control method and device of GOA driving unit |
| CN113948051A (en) * | 2021-10-28 | 2022-01-18 | 合肥鑫晟光电科技有限公司 | Display driving circuit, display driving method and display device |
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