CN104795044A - Driving device, driving method and display device - Google Patents
Driving device, driving method and display device Download PDFInfo
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Abstract
The invention discloses a driving device, a driving method and a display device. The driving device comprises a first gate drive unit and a second gate drive unit, wherein the first gate drive unit is connected with each gate line positioned on the odd-numbered line and is used for driving the gate lines positioned on the odd-numbered line according to a first preset sequence when the driving device is positioned in a first driving mode; the second gate drive unit is connected with each gate line positioned on the even-numbered line and is used for driving the gate lines positioned on the even-numbered line according to a second preset sequence when the driving device is positioned in a second driving mode; and the driving device is switched once every a frame time between the first driving mode and the second driving mode. According to the technical scheme in the invention, the number of the driven gate lines is reduced when each frame picture is displayed, so that the aim of reducing the power consumption can be achieved.
Description
Technical field
The present invention relates to display technique field, particularly a kind of drive unit, driving method and display device.
Background technology
In the epoch now that development in science and technology is maked rapid progress, display panels has been widely used on electronical display product, as televisor, computing machine, mobile phone and personal digital assistant etc.Display panels comprises data drive circuit (Source Driver), gate drivers (GateDriver) and LCDs etc.Wherein, in LCDs, there is pel array, and gate drivers is in order to pixel column corresponding in sequentially on-pixel array, transfers to pixel with the pixel data exported by data driver, and then shows and treat aobvious image.
At present, gate drivers is integrated in LCDs inside to realize the narrow frame design of LCD plate and to save IC cost more.For small-sized display panel, usually can adopt the structure of monolateral integrated grid driver, namely only at grid line one end integrated grid driver of array base palte.And for larger display panels, because screen size is large, length of arrangement wire is long, high the caused signal delay of resolution can bring the impacts such as pixel undercharge, therefore the structure of bilateral integrated grid driver is usually adopted, namely at the equal integrated grid driver in grid line two ends of array base palte.But no matter current existing display panel is the structure of monolateral integrated grid driver, or the structure of the equal integrated grid driver in two ends, and the driving method of employing is all the driving method of lining by line scan.What is called driving method of lining by line scan refers in a frame image time, scans each row grid line successively thus complete the process of display one frame picture from the first grid line.
But adopt above-mentioned driving method to show, the power dissipation ratio of display panel is higher, especially display panel resolution and the degree of integration of pixel improve constantly the development trend bringing picture quality to promote under, display panel power consumption height has become a major reason of restriction display panel development.Therefore the power consumption how reducing display panel is the technical matters that those skilled in the art need solution badly.
Summary of the invention
The invention provides a kind of drive unit, driving method and display device, to reduce the power consumption of display panel.
For achieving the above object, the invention provides a kind of drive unit, for driving display panel, described display panel comprises: some wire grid lines, described drive unit comprises: first grid driver element and second grid driver element, described first grid driver element is connected with each grid line being positioned at odd-numbered line, and described second grid driver element is connected with each grid line being positioned at even number line;
Described first grid driver element is used for when described drive unit is in the first drive pattern, drives the grid line being positioned at odd-numbered line according to the first preset order;
Described second grid driver element is used for when described drive unit is in the second drive pattern, drives the grid line being positioned at even number line according to the second preset order;
Described drive unit switches once between described first drive pattern and described second drive pattern every a frame time.
Alternatively, the quantity of the grid line on described display panel is 4N, and wherein, N is positive integer;
The all grid lines being positioned at odd-numbered line are divided into: the first strange grid line set and the second strange grid line set, described first set of strange grid line set for being made up of the grid line being positioned at 4n-3 line position, the described second set of strange grid line set for being made up of the grid line being positioned at 4n-1 line position;
Wherein, n value is all integers between [1, N];
Describedly the grid line being arranged in odd-numbered line is driven to be specially according to the first preset order: the selecting a grid line from the described first strange grid line set and the described second strange grid line set and drive of one after the other successively, until the whole grid lines being positioned at odd-numbered line are all driven, wherein
The described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to descending order;
Or, the described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to ascending order.
Alternatively, the quantity stating the grid line on display panel is 4N, and wherein, N is positive integer;
The all grid lines being positioned at even number line are divided into: the first even grid line set and the second even grid line set, described first even grid line set is by the set formed of the grid line being positioned at 4n-2 line position, and described second even grid line set is by the set formed of the grid line being positioned at 4n line position;
Wherein, n value is all integers between [1, N];
Describedly the grid line being arranged in even number line is driven to be specially according to the second preset order: the selecting a grid line from described first even grid line set and described second even grid line set and drive of one after the other successively, until the whole grid lines being positioned at even number line are all driven, wherein
The described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to descending order;
Or, the described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to ascending order.
Alternatively, described first grid driver element comprises: the first driving chip and the first output control unit, described first output control unit and the grid line one_to_one corresponding being positioned at odd-numbered line, described first output control unit is between described first driving chip and the grid line of correspondence;
Described first driving chip is for generation of driving voltage;
Described first output control unit is for exporting corresponding grid line to by described driving voltage when described drive unit is in the first drive pattern, to drive corresponding grid line, described first output control unit also for resetting voltage being exported when described drive unit is in the second drive pattern to corresponding grid line, with the corresponding grid line that resets;
Described first output control unit is arranged on the array base palte of described display panel.
Alternatively, described first output control unit comprises: the first switching tube and second switch pipe;
The grid of described first switching tube is connected with the first control line, and the first pole of described second switch pipe is connected with described first driving chip, and the second pole of described second switch pipe connects with corresponding grid line;
The grid of described second switch pipe is connected with the second control line, and the first pole of described second switch pipe is connected with described first control line, and the second pole of described second switch pipe connects with corresponding grid line;
The first control signal in described first control line is contrary with the phase place of the second control signal in described second control line, and the phase place of described first control signal and described second control signal every a frame time reversion once.
Alternatively, described first switching tube and described second switch pipe are N-type TFT;
Or described first switching tube and described second switch pipe are P-type TFT.
Alternatively, described second grid driver element comprises: the second driving chip and the second output control unit, described second output control unit and the grid line one_to_one corresponding being positioned at even number line, described second output control unit is between described second driving chip and the grid line of correspondence;
Described second driving chip is for generation of driving voltage;
Described second output control unit is for exporting corresponding grid line to by described driving voltage when described drive unit is in the second drive pattern, to drive corresponding grid line, described second output control unit also for resetting voltage being exported when described drive unit is in the first drive pattern to corresponding grid line, with the corresponding grid line that resets;
Described second output control unit is arranged on the array base palte of described display panel.
Alternatively, described second output control unit comprises: the 3rd switching tube and the 4th switching tube;
The grid of described 3rd switching tube is connected with the 3rd control line, and the first pole of described 3rd switching tube is connected with described second driving chip, and the second pole of described 3rd switching tube connects with corresponding grid line;
The grid of described 4th switching tube is connected with the 4th control line, and the first pole of described second switch pipe is connected with described 4th control line, and the second pole of described second switch pipe connects with corresponding grid line;
The 3rd control signal in described 3rd control line is contrary with the phase place of the 4th control signal in described 4th control line, and the phase place of described 4th control signal and described 4th control signal every a frame time reversion once.
Alternatively, described 3rd switching tube and described 4th switching tube are N-type TFT;
Or described 3rd switching tube and described 4th switching tube are P-type TFT.
For achieving the above object, present invention also offers a kind of display device, comprising: drive unit, described drive unit adopts above-mentioned drive unit.
For achieving the above object, present invention also offers a kind of driving method, described driving method is based on drive unit, and described drive unit adopts above-mentioned drive unit, and described driving method comprises:
Step S1, at present frame, described drive unit is in the first drive pattern, and described first grid driver element drives the grid line being positioned at odd-numbered line according to the first preset order;
Step S2, at next frame, described drive unit is in the second drive pattern, and described second grid driver element drives the grid line being positioned at even number line according to the second preset order, and the next frame after step S2 is complete continues to perform step S1.
Alternatively, the quantity of the grid line on display panel is 4N, N is positive integer, the all grid lines being positioned at odd-numbered line are divided into: the first strange grid line set and the second strange grid line set, the described first set of strange grid line set for being made up of the grid line being positioned at 4n-3 line position, the described second set of strange grid line set for being made up of the grid line being positioned at 4n-1 line position, wherein, n value is all integers between [1, N], and described step S1 specifically comprises:
Step S11: the selecting a grid line drive, until the whole grid lines being positioned at odd-numbered line are all driven from the described first strange grid line set and the described second strange grid line set of one after the other successively; Wherein, the described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to descending order; Or, the described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to ascending order.
Alternatively, the quantity of the grid line on display panel is 4N, N is positive integer, the all grid lines being positioned at even number line are divided into: the first even grid line set and the second even grid line set, and described first even grid line set is by the set formed of the grid line being positioned at 4n-2 line position, and described second even grid line set is by the set formed of the grid line being positioned at 4n line position, wherein, n value is all integers between [1, N], and described step S2 specifically comprises:
Step S21: the selecting a grid line drive from described first even grid line set and described second even grid line set of one after the other successively, until the whole grid lines being positioned at even number line are all driven, wherein, the described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to descending order; Or, the described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to ascending order.
The present invention has following beneficial effect:
The invention provides a kind of drive unit, driving method and display device, this drive unit is driven to comprise: first grid driver element and second grid driver element, first grid driver element is connected with each grid line being positioned at odd-numbered line, for driving the grid line being positioned at odd-numbered line according to the first preset order when drive unit is in the first drive pattern; Second grid driver element is connected with each grid line being positioned at even number line, for when drive unit is in the second drive pattern, drives the grid line being positioned at even number line according to the second preset order; This drive unit switches once between the first drive pattern and the second drive pattern every a frame time.Technical scheme of the present invention can make when two frame picture of display panel display arbitrary neighborhood, the grid line being positioned at odd-numbered line is only driven wherein in a frame picture, the pixel being now only positioned at odd-numbered line shows, and in another frame picture, only driving the grid line being positioned at even number line, the pixel being now only positioned at even number line shows.Due to the visual persistence effect of human eye, now human eye still can feel that the picture quality of this display panel is more excellent.As can be seen here, technical scheme of the present invention is ensureing that the picture of display panel is preferably under prerequisite, effectively can reduce the number of driven grid line during display every frame picture, thus can reach the object reducing power consumption.
Accompanying drawing explanation
The structural representation of the drive unit that Fig. 1 provides for the embodiment of the present invention one;
Fig. 2 is positioned at the driver' s timing figure of the grid line of odd-numbered line when being employing scheme 1a;
Fig. 3 is the waveform schematic diagram of sweep signal in each grid line when adopting forward drive of the prior art order to scan grid line;
Fig. 4 is the waveform schematic diagram of sweep signal in each grid line when scanning grid line of the scanning sequency in employing scheme 1a;
Fig. 5 is positioned at the driver' s timing figure of the grid line of even number line when being employing scheme 1b;
The process flow diagram of the driving method that Fig. 6 provides for the embodiment of the present invention three.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, a kind of drive unit provided by the invention, driving method and display device are described in detail.
The structural representation of the drive unit that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, this drive unit is for driving display panel, wherein, display panel comprises: some wire grid lines, this drive unit comprises: first grid driver element 1 and second grid driver element 2, and first grid driver element 1 is connected with each grid line being positioned at odd-numbered line, for driving the grid line being positioned at odd-numbered line according to the first preset order when drive unit is in the first drive pattern; Second grid driver element 2 is connected with each grid line being positioned at even number line, for when drive unit is in the second drive pattern, drives the grid line being positioned at even number line according to the second preset order; This drive unit switches once between the first drive pattern and the second drive pattern every a frame time.
During the drive unit driving display panel provided when utilizing the present embodiment, this display panel is in two frame picture processes of display arbitrary neighborhood, the grid line being only positioned at odd-numbered line in a frame image time is wherein driven, and the grid line being only positioned at even number line in another frame image time is driven.It should be noted that, due to the visual persistence effect of human eye, now human eye still can feel that the picture quality of this display panel is more excellent herein.As can be seen here, technical scheme of the present invention is ensureing that the picture of display panel is preferably under prerequisite, effectively can reduce the number of driven grid line during display every frame picture, thus can reach the object reducing power consumption.
As a kind of possibility of the present invention, below in conjunction with example, " the first preset order " and " the second preset order " in the present embodiment is described in detail, wherein, assuming that the quantity of grid line on display panel is 4N, N is positive integer.
Alternatively, the all grid lines being positioned at odd-numbered line are divided into: the first strange grid line set and the second strange grid line set, first set of strange grid line set for being made up of the grid line being positioned at 4n-3 line position, second set of strange grid line set for being made up of the grid line being positioned at 4n-1 line position, wherein, n value is all integers between [1, N].
" drive according to the first preset order and be arranged in the grid line of odd-numbered line " described in the present embodiment is specially: the selecting a grid line from the first strange grid line set and the second strange grid line set and carry out driving (i.e. two grid lines of driven arbitrary neighborhood of one after the other successively, article one, be from the first strange grid line set, another is from the second strange grid line set), until the whole grid lines being positioned at odd-numbered line are all driven.Wherein, the size being arranged in each grid line line number residing for self of the first strange grid line set is driven (forward drive) according to ascending order, and the size being arranged in each grid line line number residing for self of the second strange grid line set is driven (reverse drive) according to descending order; Or, the size being arranged in each grid line line number residing for self of the first strange grid line set is driven (reverse drive) according to descending order, and the size being arranged in each grid line line number residing for self of the second strange grid line set is driven (forward drive) according to ascending order.
It should be noted that, above-mentioned restriction makes the first preset order contain four kinds of different schemes, specific as follows:
Grid line in scheme 1a, the first strange grid line set occupies the odd positions in the first preset order, grid line in second strange grid line set occupies the even number position in the first preset order, grid line in first strange grid line set is positively driven, and the grid line in the second strange grid line set is reversed driving.
Grid line in scheme 2a, the first strange grid line set occupies the odd positions in the first preset order, grid line in second strange grid line set occupies the even number position in the first preset order, grid line in first strange grid line set is reversed driving, and each grid line in the second strange grid line set is positively driven.
Grid line in scheme 3a, the first strange grid line set occupies the even number position in the first preset order, grid line in second strange grid line set occupies the odd positions in the first preset order, grid line in first strange grid line set is positively driven, and the grid line in the second strange grid line set is reversed driving.
Grid line in scheme 4a, the first strange grid line set occupies the even number position in the first preset order, grid line in second strange grid line set occupies the odd positions in the first preset order, grid line in first strange grid line set is reversed driving, and each grid line in the second strange grid line set is positively driven.
Technical scheme of the present invention is better understood for making those skilled in the art, below in conjunction with accompanying drawing, the odd positions in the first preset order is occupied with the grid line in the first strange grid line set, grid line in second strange grid line set occupies the even number position in the first preset order, grid line in first strange grid line set is positively driven, and (grid line now in the first strange grid line set can be regarded as according to the 1st row grid line G_1, 5th row grid line G_5, 9th row grid line G_9 ... the order of the capable grid line G_4N-3 of 4N-4 arranges), grid line in second strange grid line set is reversed driving, and (grid line now in the second strange grid line set can be regarded as according to the capable grid line G_4N-1 of 4N-1, the capable grid line G_4N-5 of 4N-5, the capable grid line G_4N-9 of 4N-9 ... the order of the 3rd row grid line G_3 arranges) situation (i.e. such scheme 1a) be described for example.
Fig. 2 is positioned at the driver' s timing figure of the grid line of odd-numbered line when being employing scheme 1a, as shown in Figure 2, the grid line being positioned at odd-numbered line is driven according to the first preset order when drive unit is in the first drive pattern, in the first preset order, because the driven grid line of Article 1 is from the first strange grid line set, and the size of each grid line line number residing for self in the first strange grid line set is driven according to ascending order, then in the first preset order, the driven grid line of Article 1 is the 1st row grid line G1.Now, again due in the first preset order be by from the grid line in the first strange grid line set be alternately arranged from the grid line in the second strange grid line set, therefore in the first preset order the driven grid line of Article 2 from the second strange grid line set; Meanwhile, because the size of each grid line line number residing for self being arranged in the second strange grid line set is driven according to descending order, then in the first preset order, the driven grid line of Article 2 is the capable grid line G_4N-1 of 4N-1.
According to above-mentioned principle, the like, then in the first preset order, the driven grid line of Article 3 is the 5th row grid line G_5, the driven grid line of Article 4 is the capable grid line G_4N-5 of 4N-5, the driven grid line of Article 5 is the 9th row grid line G_9, and the driven grid line of Article 6 is the capable grid line G_4N-9 of 4N-9 ... X article of driven grid line is the capable grid line G_Y of Y, and wherein X and Y meets following relation:
It should be noted that, above-mentioned relation formula only meets the driving order corresponding to such scheme 1a.For the concrete condition of the driving order of such scheme 2a ~ 4a, can see the description of the above-mentioned order of the driving to scheme 1a, concrete derivation repeats no more.
Above-mentionedly thisly forward drive being combined with reverse drive realize to mix mode to driving to the grid line being positioned at odd-numbered line, effectively can improve the display homogeneity of display panel.What provide the present embodiment below in conjunction with accompanying drawing thisly mixes order type of drive (forward drive or reverse drive) general in type of drive and prior art and carries out contrast and describe.
As everyone knows, be subject to the impact of the impedance of grid line, in a frame time, along with the increase of the length of the inswept grid line of sweep signal, the retardation of sweep signal also can be increasing, especially the negative edge of sweep signal postpones (Falling Time), easily impacts pixel charge volume, thus causes corresponding pixel to demonstrate normal brightness.Cause the brightness homogeneity of display panel, flicker homogeneity poor thus.
Fig. 3 is the waveform schematic diagram of sweep signal in each grid line when adopting forward drive of the prior art order to scan grid line, as shown in Figure 3, what adopt in Fig. 3 is a kind of mode of forward drive, namely according to the 1st row grid line G_1, 3rd row grid line G_3 ... the capable grid line G_4N-3 of 4N-3, the order of the capable grid line G_4N-1 of 4N-1 carries out turntable driving, wherein along with the increase of the length of the inswept grid line of sweep signal, the retardation of sweep signal increases (rise time of sweep signal and fall time are all elongated) gradually, from Fig. 3, significantly can find out that the retardation of sweep signal in the capable grid line G_4N-1 of 4N-3 capable grid line G_4N-3 and 4N-1 will much larger than the 1st row grid line G_1, the retardation of sweep signal in 3rd row grid line G_3.Can release thus, on display panel, the meeting gradually from top to bottom of the charging departure (difference of actual charge value and ideal charging value) of pixel increases, the overall display brightness on display panel now can be caused from top to bottom dimmed gradually, and namely the display brightness homogeneity of display panel is poor.
Fig. 4 is the waveform schematic diagram of sweep signal in each grid line when scanning grid line of the scanning sequency in employing scheme 1a, as shown in Figure 4, the mode to driving is mixed in the scheme 1a adopted in Fig. 4, namely according to the 1st row grid line G_1, the capable grid line G_4N-1 of 4N-1 ... the capable grid line G_4N-3 of 4N-3, the order (see the above-mentioned description to driving order in scheme 1a) of the 3rd row grid line G_3 carries out turntable driving, wherein along with the length of the inswept grid line of sweep signal increases, the retardation of sweep signal increases gradually, from Fig. 4, significantly can find out that the retardation of sweep signal in the capable grid line G_4N-3 of the 3rd row grid line G_3 and 4N-3 will much larger than the 1st row grid line G_1, the retardation of sweep signal in the capable grid line G_4N-1 of 4N-1.Can release thus, on display panel, the charging departure of pixel occurs that departure is large, departure is little, departure is large, departure is little from top to bottom ... the situation that this departure size replaces, pixel now on display panel can present the phenomenon that light and shade replaces from top to bottom, the design that this light and shade replaces can make the brightness between two row pixels of arbitrary neighborhood carry out light and shade complementation, therefore on the whole, the display brightness homogeneity of whole display panel is more excellent.
As can be seen here, this in above-mentioned scheme 1a mixes the display homogeneity that effectively can improve display panel to type of drive.In like manner, such scheme 2a ~ 4a mix the display homogeneity that also effectively can promote display panel to drive scheme.
In the present embodiment, alternatively, the all grid lines being positioned at even number line are divided into: the first even grid line set and the second even grid line set, first set of even grid line set for being made up of the grid line being positioned at 4n-2 line position, second set of even grid line set for being made up of the grid line being positioned at 4n line position, wherein, n value is all integers between [1, N].
The grid line being arranged in even number line is driven to be specially according to the first preset order in the present embodiment: the selecting a grid line from the first even grid line set and the second even grid line set and drive of one after the other successively, (i.e. two grid lines of driven arbitrary neighborhood, article one, be from the first even grid line set, another is from the second even grid line set), until the whole grid lines being positioned at even number line are all driven.Wherein, the size being arranged in each grid line line number residing for self of the first even grid line set is driven (forward drive) according to ascending order, and the size being arranged in each grid line line number residing for self of the second even grid line set is driven (reverse drive) according to descending order; Or, the size being arranged in each grid line line number residing for self of the first even grid line set is driven (reverse drive) according to descending order, and the size being arranged in each grid line line number residing for self of the second even grid line set is driven (forward drive) according to ascending order.
It should be noted that, above-mentioned restriction makes the second preset order contain four kinds of different schemes, specific as follows:
Grid line in scheme 1b, the first even grid line set occupies the odd positions in the first preset order, grid line in second even grid line set occupies the even number position in the first preset order, grid line in first even grid line set is positively driven, and the grid line in the second even grid line set is reversed driving.
Grid line in scheme 2b, the first even grid line set occupies the odd positions in the first preset order, grid line in second even grid line set occupies the even number position in the first preset order, grid line in first even grid line set is reversed driving, and each grid line in the second even grid line set is positively driven.
Grid line in scheme 3b, the first even grid line set occupies the even number position in the first preset order, grid line in second even grid line set occupies the odd positions in the first preset order, grid line in first even grid line set is positively driven, and the grid line in the second even grid line set is reversed driving.
Grid line in scheme 4b, the first even grid line set occupies the even number position in the first preset order, grid line in second even grid line set occupies the odd positions in the first preset order, grid line in first even grid line set is reversed driving, and each grid line in the second even grid line set is positively driven.
Technical scheme of the present invention is better understood for making those skilled in the art, below in conjunction with accompanying drawing, the odd positions in the second preset order is occupied with the grid line in the first even grid line set, grid line in second even grid line set occupies the even number position in the second preset order, grid line in first even grid line set is positively driven, and (grid line now in the first even grid line set can be regarded as according to the 2nd row grid line G_2, 6th row grid line G_6, 10th row grid line G_10 ... the order of the capable grid line G_4N-2 of 4N-2 arranges), grid line in second even grid line set is reversed driving, and (grid line now in the second even grid line set can be regarded as according to the capable grid line G_4N of 4N, the capable grid line G_4N-4 of 4N-4, the capable grid line G_4N-8 of 4N-8 ... the order of the 4th row grid line G_4 arranges) situation (i.e. such scheme 1b) be described for example.
Fig. 5 is positioned at the driver' s timing figure of the grid line of even number line when being employing scheme 1b, as shown in Figure 5, the grid line being positioned at even number line is driven according to the second preset order when drive unit is in the second drive pattern, in the second preset order, because the driven grid line of Article 1 is from the first even grid line set, and the size being arranged in each grid line line number residing for self of the first even grid line set is driven according to ascending order, then in the second preset order, the driven grid line of Article 1 is the 2nd row grid line G_2.Now, due in the second preset order be by from the grid line in the first even grid line set be alternately arranged from the grid line in the second even grid line set, therefore, in the second preset order, the driven grid line of Article 2 is from the second even grid line set, simultaneously, because the size of each grid line line number residing for self being arranged in the second even grid line set is driven according to descending order, then in the second preset order, the driven grid line of Article 2 is the capable grid line G_4N of 4N.
According to above-mentioned principle, the like, then in the second preset order, the driven grid line of Article 3 is the 6th row grid line G_6, the driven grid line of Article 4 is the capable grid line G_4N-4 of 4N-4, the driven grid line of Article 5 is the 10th row grid line G_10, and the driven grid line of Article 6 is the capable grid line G_4N-8 of 4N-8 ... X article of driven grid line is the capable grid line G_Y of Y, and wherein X and Y meets following relation:
It should be noted that, above-mentioned formula only meets the driving order corresponding to such scheme 1b.For the concrete condition of the driving order of such scheme 2b, scheme 3b and scheme 4b, can see the description of the above-mentioned order of the driving to scheme 1b, concrete derivation repeats no more.
Above-mentionedly thisly forward drive combined with reverse drive to realize to mix mode to driving to the grid line being positioned at even number line, effectively can improve the display homogeneity of display panel, concrete principle see the description of aforementioned corresponding contents, can repeat no more herein.
In the present embodiment, alternatively, first grid driver element 1 comprises: the first driving chip 3 and the first output control module 5, first output control module 5 and the grid line one_to_one corresponding being positioned at odd-numbered line, first output control module 5 is between the first driving chip 3 and the grid line of correspondence, first driving chip 3 is for generation of driving voltage, first output control module 5 is for exporting corresponding grid line to by driving voltage when drive unit is in the first drive pattern, to drive corresponding grid line, first output control module 5 is also for exporting corresponding grid line to by resetting voltage when drive unit is in the second drive pattern, with the corresponding grid line that resets, first output control module 5 is arranged on the array base palte of display panel.
Further alternatively, first output control module 5 comprises: the first switch transistor T 1 and second switch pipe T2, the grid of the first switch transistor T 1 is connected with the first control line EN_1, first pole of second switch pipe T2 is connected with the first driving chip 3, second pole of second switch pipe T2 connects with corresponding grid line, the grid of second switch pipe T2 is connected with the second control line EN_2, first pole of second switch pipe T2 is connected with the first control line EN_1, second pole of second switch pipe T2 connects with corresponding grid line, the first control signal in first control line EN_1 is contrary with the phase place of the second control signal in the second control line EN_2, and the phase place of the first control signal and the second control signal every a frame time reversion once.
In the prior art, the first output control module 5 is integrated in the first driving chip 3, and the first driving chip 3 is independently outside display panel.The present embodiment by being taken out from the first driving chip 3 by the first output control module 5, and is prepared on array base palte, thus can simplify the structure of the first driving chip 3.Further, the first output control module 5 is also re-started design by the present embodiment, and this first output control module 5 is only made up of switching tube and plain conductor.Now, the switching tube in this first output control module 5 and plain conductor all can be formed in company with the processing procedure of array base palte (being formed on underlay substrate for driving the processing procedure of the driving tube of pixel) simultaneously.
Compared with prior art, the structure of the first driving chip 3 in the present invention is simpler than the structure of the first driving chip 3 of the prior art (the first driving chip 3 in the present embodiment does not have integrated first output control module 5), and the processing procedure of the first driving chip 3 therefore in the present embodiment is simpler than the processing procedure of the first driving chip 3 in prior art.Meanwhile, because in the present invention, the first output control module 5 can be prepared along with the processing procedure of existing array base palte simultaneously, the processing procedure including the array base palte of the first output control module 5 therefore in the present embodiment is identical with the processing procedure of existing array base palte.From foregoing, the present invention can when ensureing that array base palte processing procedure is constant, simplify the processing procedure of the first driving chip 3, shorten the preparation time of the first driving chip 3, therefore technical scheme of the present invention can make the production cycle of whole display panel (at least comprising the preparation of first grid driver element 1 and the preparation of display panel) shorten.
Preferably, the first switch transistor T 1 and second switch pipe T2 are N-type TFT, or the first switch transistor T 1 and second switch pipe T2 are P-type TFT.Because the first switch transistor T 1 is identical with the type of second switch, therefore both can adopt identical technique to be prepared.
It should be noted that, the first pole of breaker in middle pipe of the present invention and second has source electrode and the drain electrode that body refers to thin film transistor (TFT) pipe herein, with the first very source electrode in the application, second very drain electrode be described for example.Certainly, art technology technician should know, and first pole and second of breaker in middle pipe of the present invention extremely can exchange.
N-type TFT is for the first switch transistor T 1 and second switch pipe T2.When drive unit is in the first drive pattern, the first control signal then in the first control line EN_1 is in high level, the second control signal in second control line EN_2 is in low level, now the first switch transistor T 1 conducting, second switch pipe T2 ends, and the driving voltage that the first driving chip 3 produces transfers on corresponding grid line by the first switch transistor T 1 of correspondence; When drive unit is in the second drive pattern, the first control signal then in the first control line EN_1 is in low level, the second control signal in second control line EN_2 is in high level, now the first switch transistor T 1 is ended, second switch pipe T2 conducting, be in low level first control signal and resetting voltage is provided, and by corresponding second switch pipe T2, the grid line being positioned at odd-numbered line is resetted.
With above-mentioned first grid driver element 1 similarly, second grid driver element 2 in the present embodiment comprises: the second driving chip 4 and the second output control module 6, second output control module 6 and the grid line one_to_one corresponding being positioned at even number line, second output control module 6 is between the second driving chip 4 and the grid line of correspondence, second driving chip 4 is for generation of driving voltage, second output control module 6 is for exporting corresponding grid line to by driving voltage when drive unit is in the second drive pattern, to drive corresponding grid line, second output control module 6 is also for exporting corresponding grid line to by resetting voltage when drive unit is in the first drive pattern, with the corresponding grid line that resets, second output control module 6 is arranged on the array base palte of display panel.
Further alternatively, second output control module 6 comprises: the 3rd switch transistor T 3 and the 4th switch transistor T 4, the grid of the 3rd switch transistor T 3 is connected with the 3rd control line EN_3, first pole of the 3rd switch transistor T 3 is connected with the second driving chip 4, second pole of the 3rd switch transistor T 3 connects with corresponding grid line, the grid of the 4th switch transistor T 4 is connected with the 4th control line EN_4, first pole of second switch pipe T2 is connected with the 4th control line EN_4, second pole of second switch pipe T2 connects with corresponding grid line, the 3rd control signal in 3rd control line EN_3 is contrary with the phase place of the 4th control signal in the 4th control line EN_4, and the phase place of the 4th control signal and the 4th control signal every a frame time reversion once.Wherein, further alternatively, the 3rd switch transistor T 3 and the 4th switch transistor T 4 are N-type TFT, or the 3rd switch transistor T 3 and the 4th switch transistor T 4 are P-type TFT.
In the present embodiment, this second output control module 6 comprises: the 3rd switch transistor T 3 and the 4th switch transistor T 4, and the 3rd switch transistor T 3 and the 4th switch transistor T 4 are arranged on the technological means of array base palte, the production cycle of whole display panel (at least comprising the preparation of second grid driver element 2 and the preparation of display panel) can be made to shorten.Concrete principle can see in foregoing teachings to the corresponding description of the first output control module 5, repeat no more herein.
N-type TFT is for the 3rd switch transistor T 3 and the 4th switch transistor T 4.When drive unit is in the first drive pattern, the 3rd control signal then in the 3rd control line EN_3 is in low level, the 4th control signal in 4th control line EN_4 is in high level, now the 3rd switch transistor T 3 is ended, 4th switch transistor T 4 conducting, be in low level 3rd control signal and resetting voltage is provided, and by the 4th corresponding switch transistor T 4, the grid line being positioned at even number line is resetted; When drive unit is in the second drive pattern, the 3rd control signal then in the 3rd control line EN_3 is in high level, the 4th control signal in 4th control line EN_4 is in low level, now the 3rd switch transistor T 3 conducting, 4th switch transistor T 4 is ended, and the driving voltage that the second driving chip 4 produces transfers on corresponding grid line by the 3rd switch transistor T 3 of correspondence.
It should be noted that, when the first output control module 5 comprises the first switch transistor T 1 and second switch pipe T2, and the second output control module 6 is when comprising the 3rd switch transistor T 3 and the 4th switch transistor T 4, the the first control line EN_1 be connected with the grid of the first switch transistor T 1 and the 4th control line EN_4 be connected with the grid of the 4th switch transistor T 4 can be same control line, the the second control line EN_2 be connected with the grid of second switch pipe T2 and the 3rd control line EN_3 be connected with the grid of the 3rd switch transistor T 3 can be same control line, then now corresponding four switching tubes only need to arrange two control lines, and the phase place of signal in these two control lines is contrary, and the signal in these two control lines reverses once every a frame time.
The embodiment of the present invention two provides a kind of display device, comprise: display panel and drive unit, this drive unit is for driving display panel, and this drive unit adopts the drive unit provided in above-described embodiment one, and particular content can see the description in above-described embodiment one.
The process flow diagram of the driving method that Fig. 6 provides for the embodiment of the present invention three, as shown in Figure 6, this driving method is based on drive unit, and this drive unit adopts the drive unit in above-described embodiment one, and this driving method comprises:
Step S1, at present frame, drive unit is in the first drive pattern, and first grid driver element drives the grid line being positioned at odd-numbered line according to the first preset order.
Alternatively, the quantity of the grid line on display panel is 4N, N is positive integer, the all grid lines being positioned at odd-numbered line are divided into: the first strange grid line set and the second strange grid line set, the described first set of strange grid line set for being made up of the grid line being positioned at 4n-3 line position, the described second set of strange grid line set for being made up of the grid line being positioned at 4n-1 line position, wherein, n value is all integers between [1, N], and step S1 specifically comprises:
Step S11: the selecting a grid line drive, until the whole grid lines being positioned at odd-numbered line are all driven from the first strange grid line set and the second strange grid line set of one after the other successively; Wherein, the size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to ascending order, and the size being arranged in each grid line line number residing for self of the second strange grid line set is driven according to descending order; Or the size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to descending order, the size being arranged in each grid line line number residing for self of the second strange grid line set is driven according to ascending order.
In step s 11, specifically can comprise four kinds of drive scheme: scheme 1a ~ 4a in above-described embodiment one, in these four kinds of schemes, adopt and thisly forward drive is combined with reverse drive realize to mix mode to driving to the grid line being positioned at odd-numbered line, effectively can improve the display homogeneity of display panel.Concrete principle can see the description of aforementioned appropriate section.
Step S2, at next frame, drive unit is in the second drive pattern, and second grid driver element drives the grid line being positioned at even number line according to the second preset order.
Alternatively, the quantity of the grid line on display panel is 4N, N is positive integer, the all grid lines being positioned at even number line are divided into: the first even grid line set and the second even grid line set, and the first even grid line set is by the set formed of the grid line being positioned at 4n-2 line position, and the second even grid line set is by the set formed of the grid line being positioned at 4n line position, wherein, n value is all integers between [1, N], and step S2 specifically comprises:
Step S21: the selecting a grid line drive from the first even grid line set and the second even grid line set of one after the other successively, until the whole grid lines being positioned at even number line are all driven, wherein, the size being arranged in each grid line line number residing for self of the first even grid line set is driven according to ascending order, and the size being arranged in each grid line line number residing for self of the second even grid line set is driven according to descending order; Or the size being arranged in each grid line line number residing for self of the first even grid line set is driven according to descending order, the size being arranged in each grid line line number residing for self of the second even grid line set is driven according to ascending order.
In the step s 21, specifically can comprise four kinds of drive scheme: scheme 1b ~ 4b in above-described embodiment one, in these four kinds of schemes, adopt and thisly forward drive is combined with reverse drive realize to mix mode to driving to the grid line being positioned at even number line, effectively can improve the display homogeneity of display panel.Concrete principle can see the description of aforementioned appropriate section.
After step S2 executes, continue to perform step S1 at next frame.
Can make when two frame picture of display panel display arbitrary neighborhood by above-mentioned steps, the grid line being positioned at odd-numbered line is only driven in a frame picture, the pixel being now only positioned at odd-numbered line shows, and in another frame picture, only driving the grid line being positioned at even number line, the pixel being now only positioned at even number line shows.Due to the visual persistence effect of human eye, now human eye still can feel that the picture quality of this display panel is more excellent.As can be seen here, technical scheme of the present invention is ensureing that the picture of display panel is preferably under prerequisite, effectively can reduce the number of driven grid line during display every frame picture, thus can reach the object reducing power consumption.
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 (13)
1. a drive unit, it is characterized in that, for driving display panel, described display panel comprises: some grid lines, described drive unit comprises: first grid driver element and second grid driver element, described first grid driver element is connected with each grid line being positioned at odd-numbered line, and described second grid driver element is connected with each grid line being positioned at even number line;
Described first grid driver element is used for when described drive unit is in the first drive pattern, drives the grid line being positioned at odd-numbered line according to the first preset order;
Described second grid driver element is used for when described drive unit is in the second drive pattern, drives the grid line being positioned at even number line according to the second preset order;
Described drive unit switches once between described first drive pattern and described second drive pattern every a frame time.
2. drive unit according to claim 1, is characterized in that, the quantity of the grid line on described display panel is 4N, and wherein, N is positive integer;
The all grid lines being positioned at odd-numbered line are divided into: the first strange grid line set and the second strange grid line set, described first set of strange grid line set for being made up of the grid line being positioned at 4n-3 line position, the described second set of strange grid line set for being made up of the grid line being positioned at 4n-1 line position;
Wherein, n value is all integers between [1, N];
Describedly the grid line being arranged in odd-numbered line is driven to be specially according to the first preset order: the selecting a grid line from the described first strange grid line set and the described second strange grid line set and drive of one after the other successively, until the whole grid lines being positioned at odd-numbered line are all driven, wherein
The described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to descending order;
Or, the described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to ascending order.
3. drive unit according to claim 1, is characterized in that, the quantity stating the grid line on display panel is 4N, and wherein, N is positive integer;
The all grid lines being positioned at even number line are divided into: the first even grid line set and the second even grid line set, described first even grid line set is by the set formed of the grid line being positioned at 4n-2 line position, and described second even grid line set is by the set formed of the grid line being positioned at 4n line position;
Wherein, n value is all integers between [1, N];
Describedly the grid line being arranged in even number line is driven to be specially according to the second preset order: the selecting a grid line from described first even grid line set and described second even grid line set and drive of one after the other successively, until the whole grid lines being positioned at even number line are all driven, wherein
The described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to descending order;
Or, the described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to ascending order.
4. according to described drive unit arbitrary in claim 1-3, it is characterized in that, described first grid driver element comprises: the first driving chip and the first output control unit, described first output control unit and the grid line one_to_one corresponding being positioned at odd-numbered line, described first output control unit is between described first driving chip and the grid line of correspondence;
Described first driving chip is for generation of driving voltage;
Described first output control unit is for exporting corresponding grid line to by described driving voltage when described drive unit is in the first drive pattern, to drive corresponding grid line, described first output control unit also for resetting voltage being exported when described drive unit is in the second drive pattern to corresponding grid line, with the corresponding grid line that resets;
Described first output control unit is arranged on the array base palte of described display panel.
5. drive unit according to claim 4, is characterized in that, described first output control unit comprises: the first switching tube and second switch pipe;
The grid of described first switching tube is connected with the first control line, and the first pole of described second switch pipe is connected with described first driving chip, and the second pole of described second switch pipe connects with corresponding grid line;
The grid of described second switch pipe is connected with the second control line, and the first pole of described second switch pipe is connected with described first control line, and the second pole of described second switch pipe connects with corresponding grid line;
The first control signal in described first control line is contrary with the phase place of the second control signal in described second control line, and the phase place of described first control signal and described second control signal every a frame time reversion once.
6. drive unit according to claim 5, is characterized in that, described first switching tube and described second switch pipe are N-type TFT;
Or described first switching tube and described second switch pipe are P-type TFT.
7. according to described drive unit arbitrary in claim 1-3, it is characterized in that, described second grid driver element comprises: the second driving chip and the second output control unit, described second output control unit and the grid line one_to_one corresponding being positioned at even number line, described second output control unit is between described second driving chip and the grid line of correspondence;
Described second driving chip is for generation of driving voltage;
Described second output control unit is for exporting corresponding grid line to by described driving voltage when described drive unit is in the second drive pattern, to drive corresponding grid line, described second output control unit also for resetting voltage being exported when described drive unit is in the first drive pattern to corresponding grid line, with the corresponding grid line that resets;
Described second output control unit is arranged on the array base palte of described display panel.
8. drive unit according to claim 7, is characterized in that, described second output control unit comprises: the 3rd switching tube and the 4th switching tube;
The grid of described 3rd switching tube is connected with the 3rd control line, and the first pole of described 3rd switching tube is connected with described second driving chip, and the second pole of described 3rd switching tube connects with corresponding grid line;
The grid of described 4th switching tube is connected with the 4th control line, and the first pole of described second switch pipe is connected with described 4th control line, and the second pole of described second switch pipe connects with corresponding grid line;
The 3rd control signal in described 3rd control line is contrary with the phase place of the 4th control signal in described 4th control line, and the phase place of described 4th control signal and described 4th control signal every a frame time reversion once.
9. drive unit according to claim 8, is characterized in that, described 3rd switching tube and described 4th switching tube are N-type TFT;
Or described 3rd switching tube and described 4th switching tube are P-type TFT.
10. a display device, is characterized in that, comprising: as the drive unit as described in arbitrary in claim 1-9.
11. 1 kinds of driving methods, is characterized in that, described driving method is based on drive unit, and described drive unit adopts arbitrary described drive unit in the claims 1-9, and described driving method comprises:
Step S1, at present frame, described drive unit is in the first drive pattern, and described first grid driver element drives the grid line being positioned at odd-numbered line according to the first preset order;
Step S2, at next frame, described drive unit is in the second drive pattern, and described second grid driver element drives the grid line being positioned at even number line according to the second preset order, and the next frame after step S2 is complete continues to perform step S1.
12. driving methods according to claim 11, is characterized in that, when described drive unit adopts the drive unit in the claims 2, described step S1 specifically comprises:
Step S11: the selecting a grid line drive, until the whole grid lines being positioned at odd-numbered line are all driven from the described first strange grid line set and the described second strange grid line set of one after the other successively; Wherein, the described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to descending order; Or, the described size being arranged in each grid line line number residing for self of the first strange grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second strange grid line set size driven according to ascending order.
13. driving methods according to claim 11, is characterized in that, when described drive unit adopts the drive unit in the claims 3, described step S2 specifically comprises:
Step S21: the selecting a grid line drive from described first even grid line set and described second even grid line set of one after the other successively, until the whole grid lines being positioned at even number line are all driven, wherein, the described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to ascending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to descending order; Or, the described size being arranged in each grid line line number residing for self of the first even grid line set is driven according to descending order, described in be arranged in each grid line line number residing for self of the second even grid line set size driven according to ascending order.
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| WO2019076116A1 (en) * | 2017-10-16 | 2019-04-25 | 京东方科技集团股份有限公司 | Gate drive circuit, shift register and drive control method therefor |
| US10872549B2 (en) | 2017-10-16 | 2020-12-22 | Beijing Boe Optoelectronics Technology Co., Ltd. | Gate driving circuit, shift register and driving control method thereof |
| CN108682379A (en) * | 2018-06-29 | 2018-10-19 | 上海天马微电子有限公司 | Display panel, display device and driving method of display panel |
| CN109036303A (en) * | 2018-07-24 | 2018-12-18 | 武汉华星光电技术有限公司 | Goa circuit and display device |
| CN109064963A (en) * | 2018-09-05 | 2018-12-21 | 京东方科技集团股份有限公司 | Display device and driving method, shift register, driving circuit |
| WO2020062614A1 (en) * | 2018-09-30 | 2020-04-02 | 惠科股份有限公司 | Display panel and driving method therefor, and display device |
| CN109119043A (en) * | 2018-09-30 | 2019-01-01 | 惠科股份有限公司 | Display panel, driving method thereof and display device |
| CN109410852A (en) * | 2018-10-22 | 2019-03-01 | 惠科股份有限公司 | Display device and detection method thereof |
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| CN110491331B (en) * | 2019-09-30 | 2023-01-24 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN115331642A (en) * | 2022-08-15 | 2022-11-11 | 深圳创维－Rgb电子有限公司 | Display panel, display device and driving method of display panel |
| WO2024037465A1 (en) * | 2022-08-19 | 2024-02-22 | 华为技术有限公司 | Display driving chip, display screen and display apparatus |
| CN116246566A (en) * | 2023-01-30 | 2023-06-09 | 惠科股份有限公司 | Display panel and electronic equipment |
| CN116246566B (en) * | 2023-01-30 | 2024-05-28 | 惠科股份有限公司 | Display panel and electronic equipment |
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