CN101408689B - Data wire drive method - Google Patents
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- CN101408689B CN101408689B CN2008101813329A CN200810181332A CN101408689B CN 101408689 B CN101408689 B CN 101408689B CN 2008101813329 A CN2008101813329 A CN 2008101813329A CN 200810181332 A CN200810181332 A CN 200810181332A CN 101408689 B CN101408689 B CN 101408689B
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Abstract
The invention relates to a method for driving a data cable and is used in a display panel driving circuit which comprises a plurality of rows of gate lines and a plurality of data driving stages; wherein, the data driving stages are respectively corresponding to a data cable group. The method for driving the data cable comprises the following steps: when the gate lines in a first map boundary time are turned on, the data driving stages are turned on in first sequence to input the data cable group corresponding to the data driving stages in first map boundary data; and when the gate lines in a second map boundary time are turned on, the data driving stages are turned on in second sequence which is opposite to the first sequence to input the data cable group corresponding to the data driving stages in second map boundary data; wherein, the first map boundary time and the second map boundary time are alternate.
Description
Technical field
The invention relates to a kind of data wire drive method, and particularly relevant for a kind of data wire drive method that is used for a display panel, drive circuit.
Background technology
Display panels has become main flow in the demonstration science and technology in modern times.No matter be in TV, computer, hand-held moving device, can see the application of display panels.In LCD, need pass through driving circuit, driving pel array, and pixel data is entered in the pixel cell, correctly on display panel, to show by data line (data line).
Known data line type of drive is in each continuous picture frame, all opens in proper order according to the arrangement mode of data-driven level, and in the pixel data input data line with the desire demonstration.Type of drive so will make in the contiguous two data-driven levels, between the most close data line, easily because of the existence of stray capacitance or leakage current, and the correctness of the data that influence has been imported, and make the mistake on being shown in display panel the time.
Therefore, how designing a new type of drive, the influence of stray capacitance or leakage current is reduced, to promote the correctness of video data, is an industry problem demanding prompt solution for this reason.
Summary of the invention
Therefore purpose of the present invention is providing a kind of data wire drive method (driving method) exactly, be to be used for a display panel, drive circuit, display panel, drive circuit comprises a plurality of row gate lines and a plurality of data-driven level, each described these data-driven level corresponds to a data line group (data line group) respectively, when data wire drive method comprises the following steps: that each the row gate line in the one first picture frame time (frame period) is opened, comply with one first order turn-on data driving stage to import one first drawing frame data in data-driven level corresponding data line group; And when one second picture frame each row gate line in the time is opened, the one second order turn-on data driving stage of complying with one and first reversed in order is to import one second drawing frame data in data-driven level corresponding data line group, and wherein the first picture frame time and the second picture frame time are staggered carrying out.
Another object of the present invention is that a kind of data wire drive method is being provided, be to be used for a display panel, drive circuit, display panel, drive circuit comprises a plurality of row gate lines, a plurality of odd data driving stages (datadriver stage) and a plurality of even data driving stage, each described these odd number and even data driving stage correspond to a data line group respectively, data wire drive method comprises the following steps: to open the odd data driving stage to import one first picture frame odd data in odd data driving stage corresponding data line group according to an order when one first picture frame each row gate line in the time is opened; When first picture frame each row gate line in the time is opened, open the even data driving stage to import one first picture frame even data in even data driving stage corresponding data line group according to same order; When one second picture frame each row gate line in the time is opened, open the even data driving stage to import one second drawing frame data in even data driving stage corresponding data line group according to same order; And when second picture frame each row gate line in the time is opened, open the odd data driving stage to import one second picture frame odd data in odd data driving stage corresponding data line group according to same order, wherein the first picture frame time and the second picture frame time are staggered carrying out.
The invention has the advantages that and to utilize at first and second staggered picture frame in the time, when each row gate line is opened, come the turn-on data driving stage and import data with different order, and make in the two contiguous data-driven levels, data between the most close data line reach above-mentioned purpose easily because of average effect reduces the generation of error.
Description of drawings
For above-mentioned and other purposes of the present invention, feature, advantage and embodiment can be become apparent, being described in detail as follows of appended accompanying drawing:
Fig. 1 is the synoptic diagram of the display panel, drive circuit that data wire drive method was suitable for of the first embodiment of the present invention;
Fig. 2 A opens the sequential chart of each data-driven level for the control signal of each data-driven level according to first order;
Fig. 2 B opens the sequential chart of each data-driven level for the control signal of each data-driven level according to second order;
Fig. 3 A opens the odd data driving stage for the control signal of each data-driven level earlier according to first order and opens the sequential chart of even data driving stage again;
Fig. 3 B opens the even data driving stage for the control signal of each data-driven level earlier according to second order and opens the sequential chart of odd data driving stage again;
Fig. 4 A is docile and obedient preface elder generation unlatching odd data driving stage for the control signal of each data-driven level and opens the sequential chart of even data driving stage again; And
Fig. 4 B opens the even data driving stage for the control signal of each data-driven level earlier according to same order and opens the sequential chart of odd data driving stage again.
Drawing reference numeral
1: display panel, drive circuit 10: Data In-Line
11: put in order 12: gate line
110,120,130,140: data-driven level 112: control module
114: analog switch 113: control signal
20: the first data-driven levels of 21: the second data-driven level opening sequences opening sequence
30: the first data-driven levels of 31: the second data-driven level opening sequences opening sequence
40: data-driven level opening sequence
Embodiment
Behind the embodiment of consulting accompanying drawing and describing subsequently, those skilled in the art just can understand purpose of the present invention, and technological means of the present invention and enforcement aspect.
Please refer to Fig. 1, be the synoptic diagram of the display panel, drive circuit 1 that data wire drive method was suitable for of the first embodiment of the present invention.Display panel, drive circuit 1 comprises the 1st data-driven level to the N data-driven level of joining with a plurality of Data In-Lines 10, only shows wherein four data driving stages 110,120,130,140 in Fig. 1.Display panel, drive circuit 1 more comprises a plurality of row gate lines 12.As shown in Figure 1, data-driven level 110,120,130,140 have one from left to right put in order 11.Wherein, be example with data-driven level 110, data-driven level 110 corresponds to data line group 111, and data line group 111 more is connected to a plurality of pixel cells (not illustrating) on each row gate line.Data-driven level 110 comprises control module 112, with when each row gate line is opened, transmits a control signal 113, the analog switch (analog switch) 114 that is connected with turn-on data line-group group 111.After analog switch 114 is opened, Data In-Line 10 is about to the video data of data line group 111 pairing each pixel cell (not illustrating) when data-driven level 110 is opened, via data line group 111, send in the pixel cell corresponding on the row gate line of unlatching.
Please be simultaneously with reference to Fig. 2 A and Fig. 2 B, the sequential chart for the control signal of each data-driven level describes with the data wire drive method to the first embodiment of the present invention.The video data that the user is seen on display panel is to be continued by one and another picture frame (frame) to form continuous picture.These picture frames can be divided into odd number picture frame and even number picture frame, and the time of demonstration odd number picture frame is the odd number picture frame time, show that the time of even number picture frame is the even number picture frame time.Odd number picture frame and even number picture frame are demonstrations interlaced with each other, and for instance, what show behind first picture frame is second picture frame, and what show behind second picture frame is the 3rd picture frame, by that analogy.Therefore, odd number picture frame time and even number picture frame time will interlock and carry out.In time, aforesaid each row gate line is in different embodiment at each picture frame, can be docile and obedient preface and open whole gate lines, or open the odd column gate line earlier, open the even column gate line again, so that the pixel cell on each row gate line can receive the video data that data line is imported.Shown in Fig. 2 A and Fig. 2 B, in display panel, drive circuit, when wherein a row gate line is opened, the sequential chart of the control signal of each data-driven level.For ease of explanation, Fig. 2 A and Fig. 2 B only show when wherein a row gate line is opened, the sequential chart of the control signal of the 1st to the 3rd data-driven level and N-3 to the N data-driven level.When other row gate lines are opened, the sequential chart of the control signal of data-driven level is also identical with Fig. 2 A and Fig. 2 B.The first step of the data wire drive method of present embodiment is in the odd number picture frame time, shown in Fig. 2 A, according to first order 20, the data-driven level puts in order 11 as shown in Figure 1, promptly by the 1st data-driven level to the N data-driven level, pass through the analog switch of control signal turn-on data driving stage in order, to import first drawing frame data in each data-driven level corresponding data line group.First drawing frame data is, at first picture frame during time, and the video data of each pixel cell (not illustrating).After first drawing frame data input, promptly close the 1st data-driven level to the N data-driven level by control signal according to first order 20.Then in the next step, in the even number picture frame time, according to first order, 20 opposite second order, 21 turn-on data driving stages, promptly be opened into the 1st data-driven level, to import second drawing frame data in each data-driven level corresponding data line group by N data-driven level.Similarly, second drawing frame data is, at second picture frame during time, and the video data of each pixel cell.After second drawing frame data input, promptly close the 1st data-driven level to the N data-driven level by control signal according to second order 21.As previously mentioned, odd number picture frame time and even number picture frame time will interlock carries out, so the above-mentioned steps execution that also will interlock along with the running of display panel, drive circuit 1.
In the second embodiment of the present invention, the 1st data-driven level to the N data-driven level can be divided into odd data driving stage and even data driving stage.As the data-driven level among Fig. 1 110,120,130,140, be to be divided into odd data driving stage 110,130 and even data driving stage 120,140.The data wire drive method of present embodiment, as shown in Figure 3A, first step is in first picture frame in the time, according to one first order 30, open the odd data driving stage, as the the 1st, the 3rd, the 5th ..., to the odd data driving stage of N-1, importing first drawing frame data, and close the odd data driving stage according to first order 30 in odd data driving stage corresponding data line group.In second step, equally in first picture frame in the time, open the even data driving stage according to first order 30, as the the 2nd, the 4th, the 6th ..., to the even data driving stage of N, importing first drawing frame data, and close the even data driving stage according to first order 30 in even data driving stage corresponding data line group.Then, the first picture frame time finish the input the first picture frame information after, at second picture frame during time, shown in Fig. 3 B, earlier, open the even data driving stage according to second order 31 opposite with first order 30, promptly N, N-2, N-4 ..., the even data driving stage to the 2nd, importing second drawing frame data, and close the even data driving stage according to second order 31 in even data driving stage corresponding data line group.With second order 31, open the odd data driving stage again, promptly N-1, N-3, N-5 ..., the odd data driving stage to the 1st, to import second drawing frame data in odd data driving stage corresponding data line group.As first embodiment, odd number picture frame time and even number picture frame time will interlock carries out, so the above-mentioned steps execution that also will interlock along with the running of display panel, drive circuit 1.
In the third embodiment of the present invention, also, the 1st data-driven level to the N data-driven level is divided into odd data driving stage and even data driving stage as second embodiment.The data wire drive method of present embodiment, shown in Fig. 4 A, first step is in first picture frame in the time, be docile and obedient preface 40, open the odd data driving stage, as the the 1st, the 3rd, the 5th ..., to the odd data driving stage of N-1, importing first drawing frame data, and be docile and obedient preface 40 and close the odd data driving stage in odd data driving stage corresponding data line group.In second step, equally in first picture frame in the time, be docile and obedient preface 40 and open the even data driving stage, as the the 2nd, the 4th, the 6th ..., to the even data driving stage of N, importing first drawing frame data, and be docile and obedient preface 40 and close the even data driving stage in even data driving stage corresponding data line group.Then, the first picture frame time finish the input the first picture frame information after, shown in Fig. 4 B, comply with identical order 40 during the time earlier at second picture frame, open the even data driving stage, promptly the the 2nd, the 4th, the 6th ..., to the even data driving stage of N, importing second drawing frame data, and be docile and obedient preface 40 and close the even data driving stage in even data driving stage corresponding data line group.Again with identical order 40, open the odd data driving stage, promptly the the 1st, the 3rd, the 5th ..., to the odd data driving stage of N-1, to import second drawing frame data in odd data driving stage corresponding data line group.As first embodiment, odd number picture frame time and even number picture frame time will interlock carries out, so the above-mentioned steps execution that also will interlock along with the running of display panel, drive circuit 1.
Above-mentioned embodiment, in fact can be on demand, and the unlatching step in odd number picture frame time and even number picture frame time is exchanged, or to the data driving stage strange earlier after occasionally earlier the strange opening sequence in idol back exchange, any those skilled in the art is when doing further change.
Data wire drive method of the present invention, can utilize at first and second staggered picture frame in the time, put in order according to different data-driven levels, or each data-driven level is divided into odd number and even number group and the mode of opening respectively, carry out the input of data, and make that in the two contiguous data-driven levels, the data between the most close data line reduce the generation of error because of average effect.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, so protection scope of the present invention is when being as the criterion with claim institute confining spectrum.
Claims (13)
1. data wire drive method, it is characterized in that, described data wire drive method is to be used for a display panel, drive circuit, described display panel, drive circuit comprises a plurality of row gate lines and a plurality of data-driven level, each described data-driven level corresponds to a data line group respectively, and described data wire drive method comprises the following steps:
When one first picture frame each row gate line in the time is opened, open described data-driven level to import the described data line group of one first drawing frame data in described data-driven level correspondence according to one first order; And
When one second picture frame each row gate line in the time is opened, open described data-driven level in proper order to import one second drawing frame data with one second of described first reversed in order in the corresponding described data line group of described data-driven level according to one;
Wherein said first picture frame time and the described second picture frame time interleaving carry out;
When described first picture frame each row gate line in the time is opened, open described data-driven level to import the step of described first drawing frame data, more comprise a step: according to the described data-driven level of described first orderly close-down according to described first order.
2. data wire drive method as claimed in claim 1 is characterized in that, the described first picture frame time is the odd number picture frame time, and the described second picture frame time is the even number picture frame time.
3. data wire drive method as claimed in claim 1 is characterized in that, described first order is identical with putting in order of described data-driven level.
4. data wire drive method as claimed in claim 1, it is characterized in that the step of opening described data-driven level is to import described first drawing frame data and the described second drawing frame data described data line group in described data-driven level correspondence in order to a plurality of analog switches of the described data line group of opening described data-driven level correspondence.
5. data wire drive method as claimed in claim 1 is characterized in that,
When described a plurality of data-driven levels are divided into a plurality of odd data driving stages and a plurality of even data driving stage,
The step of opening described data-driven level according to described first order when described first picture frame each row gate line in the time is opened comprises:
Open described odd data driving stage to import the described data line group of described first drawing frame data according to described first order in described odd data driving stage correspondence; And
Open described even data driving stage to import the described data line group of described first drawing frame data according to described first order in described even data driving stage correspondence;
In time, described step according to the described data-driven level of described first orderly close-down comprises in one first picture frame:
According to the described odd data driving stage of described first orderly close-down; And
According to the described even data driving stage of described first orderly close-down.
6. data wire drive method as claimed in claim 5 is characterized in that, the step of opening described data-driven level according to described second order when described second picture frame each row gate line in the time is opened comprises:
Open described even data driving stage to import the described data line group of described second drawing frame data according to described second order in described even data driving stage correspondence; And
Open described odd data driving stage to import the described data line group of described second drawing frame data according to described second order in described odd data driving stage correspondence.
7. data wire drive method as claimed in claim 1, it is characterized in that, when described second picture frame each row gate line in the time is opened according to described second order open described data-driven level with the step of importing described second drawing frame data after, more comprise a step: according to the described data-driven level of described second orderly close-down.
8. data wire drive method, it is characterized in that, described data wire drive method is to be used for a display panel, drive circuit, described display panel, drive circuit comprises a plurality of row gate lines, a plurality of odd data driving stage and a plurality of even data driving stage, each described odd number and even data driving stage correspond to a data line group respectively, and described data wire drive method comprises the following steps:
When one first picture frame each row gate line in the time is opened, open described odd data driving stage to import the described data line group of one first picture frame odd data in described odd data driving stage correspondence according to an order;
Under described first picture frame each row gate line opening in the time, and after having opened all described odd data driving stages, open described even data driving stage to import the described data line group of one first picture frame even data in described even data driving stage correspondence according to described order;
Described first picture frame has been opened all described odd data driving stages and has been opened all described even data driving stages in the time after, under one second picture frame each row gate line opening in the time, open described even data driving stage to import the described data line group of one second picture frame even data in described even data driving stage correspondence according to described order; And
Under described second picture frame each row gate line opening in the time, and after having opened all described even data driving stages, open described odd data driving stage to import the described data line group of one second picture frame odd data in described odd data driving stage correspondence according to described order;
Wherein said first picture frame time and the described second picture frame time interleaving carry out.
9. data wire drive method as claimed in claim 8 is characterized in that, the described first picture frame time is the odd number picture frame time, and the described second picture frame time is the even number picture frame time.
10. data wire drive method as claimed in claim 8 is characterized in that, described order is identical with putting in order of described odd data driving stage and described even data driving stage.
11. data wire drive method as claimed in claim 8, it is characterized in that the step of opening described odd data driving stage and described even data driving stage is to import described odd level data and described even level data in described corresponding data line group in order to a plurality of analog switches of opening described corresponding data line group.
12. data wire drive method as claimed in claim 8, it is characterized in that, when described first picture frame each row gate line in the time is opened, open according to described order described odd data driving stage with the step of importing the described first picture frame odd data after, more comprise a step: according to the described odd data driving stage of described orderly close-down;
Under described first picture frame each row gate line opening in the time, and after having opened all described odd data driving stages, open described even data driving stage with after the step of importing the described first picture frame even data according to described order, more comprise a step: according to the described even data driving stage of described orderly close-down.
13. data wire drive method as claimed in claim 8 is characterized in that,
Under described second picture frame each row gate line opening in the time, according to described order open described odd data driving stage with the step of importing the described second picture frame odd data after, more comprise a step: according to the described odd data driving stage of described orderly close-down;
Under described second picture frame each row gate line opening in the time, open described even data driving stage with after the step of importing the described second picture frame even data according to described order, more comprise a step: according to the described even data driving stage of described orderly close-down.
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| CN2008101813329A CN101408689B (en) | 2008-11-19 | 2008-11-19 | Data wire drive method |
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| CN2008101813329A CN101408689B (en) | 2008-11-19 | 2008-11-19 | Data wire drive method |
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| CN101408689B true CN101408689B (en) | 2011-02-09 |
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| CN103514846A (en) * | 2012-06-29 | 2014-01-15 | 北京京东方光电科技有限公司 | Liquid crystal display and driving method thereof |
| CN104751802B (en) * | 2015-04-20 | 2017-12-08 | 广东威创视讯科技股份有限公司 | LED display scan method, LED display screen control device and system |
| CN104778921B (en) * | 2015-04-24 | 2018-08-07 | 广东威创视讯科技股份有限公司 | A kind of LED display decoding is capable to select circuit and LED display control system |
| CN112927660B (en) * | 2021-02-09 | 2022-12-06 | 重庆京东方光电科技有限公司 | Driving circuit, driving method thereof and display panel |
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