CN103293732A - Liquid crystal display panel driving method and liquid crystal display panel - Google Patents
Liquid crystal display panel driving method and liquid crystal display panel Download PDFInfo
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- CN103293732A CN103293732A CN2013102141226A CN201310214122A CN103293732A CN 103293732 A CN103293732 A CN 103293732A CN 2013102141226 A CN2013102141226 A CN 2013102141226A CN 201310214122 A CN201310214122 A CN 201310214122A CN 103293732 A CN103293732 A CN 103293732A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
Abstract
An embodiment of the invention discloses a liquid crystal display panel driving method and a liquid crystal display panel and relates to the field of liquid crystal display. By the liquid crystal display panel driving method and the liquid crystal display panel, flicker and crosstalk of the liquid crystal display panel are reduced, and display effect is improved. The liquid crystal display panel driving method of the embodiment is characterized in that frame inversion includes a plurality of times of inversion of subframe units, each subframe unit comprises at least one pixel cell in the liquid crystal display panel, the subframe unit inversion is used for polarity inversion of each subframe unit through a data driving unit under control of a gate electrode driving unit, and each pixel cell in the liquid crystal display panel is subjected to one-time polarity inversion after a frame inversion process is completed.
Description
Technical field
The present invention relates to field of liquid crystal display, relate in particular to a kind of liquid crystal panel drive method and liquid crystal panel.
Background technology
Increasingly mature along with the photoelectric display technology, the application of display device more and more widely.Wherein because have the life-span long, light efficiency is high, radiation is low, characteristics such as low in energy consumption, replaced traditional ray tube display device gradually and become the developing direction of display device product main flow in recent years based on the display device of liquid crystal panel.
For liquid crystal panel, its normally used type of drive mainly comprises following several: frame counter-rotating, row counter-rotating, row counter-rotating, some counter-rotating.Each type of drive has both advantages and disadvantages, and is example with the frame inversion driving mode, and its driving process specifically can be described as: when the liquid crystal panel image showed, the liquid crystal panel former frame was exported the data of a certain polarity, in the data of next frame output opposite polarity and circulate.(need to prove that the polarity of data is the polarity of pixel voltage for public electrode voltages of pixel cell, comprising two kinds of positive polarity and negative polarity.Therefore the frame inversion driving mode can be for example: suppose that liquid crystal indicator is in the data of the first frame output cathode, so in the data of second frame with output negative pole, in the data of the 3rd frame with output cathode, in the data of the 4th frame with output negative pole, ..., circulation successively).
Yet the inventor finds the frame inversion driving mode of prior art in R﹠D process there are the following problems at least: the liquid crystal panel of frame inversion driving mode is easy to generate the figure scintillation in the process of display graphics; Therefore the situation that easy data signals is crosstalked between each pixel cell of the liquid crystal panel of frame inversion driving mode can have a negative impact to display effect in addition.
Summary of the invention
Embodiments of the invention provide a kind of liquid crystal panel drive method and liquid crystal panel, have reduced the situation that liquid crystal panel produces flicker and crosstalks, and have improved display effect.
For solving the problems of the technologies described above, embodiments of the invention adopt following technical scheme:
A kind of liquid crystal panel drive method, described liquid crystal panel comprises a plurality of pixel cells, drive element of the grid and data-driven unit, and described liquid crystal panel adopts frame inversion driving mode display graphics, described frame counter-rotating comprises the counter-rotating of several times subframe unit, described subframe unit comprises at least one pixel cell in the described liquid crystal panel, described subframe unit counter-rotating is used for by the data-driven unit polarity of described subframe unit being reversed under the control of described drive element of the grid, and each pixel cell in the described liquid crystal panel carries out a reversal of poles after a frame Umklapp process is finished.
Further, described liquid crystal panel also comprises grid line, data line, thin film transistor (TFT), each pixel cell connects a thin film transistor (TFT), the described thin film transistor (TFT) of odd column of the described pixel cell of first row links to each other, the described grid line of last column links to each other with the described thin film transistor (TFT) of the even column of the described pixel cell of last column, the described grid line of remaining row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of be expert at and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of even column of the described pixel cell of adjacent lastrow, the described pixel cell that is connected with the odd-numbered line grid line is first subframe unit, and the described pixel cell that is connected with the even number line grid line is second subframe unit; Described frame counter-rotating comprises the counter-rotating of first subframe unit and the counter-rotating of second subframe unit.
Further, the time interval of adjacent described subframe unit counter-rotating is identical.
Further, the pixel cell of the liquid crystal panel that comprises of described subframe unit is non-conterminous mutually.
Further, the polarity of described subframe unit is that the pixel voltage of the pixel cell that comprises of described subframe unit is with respect to the polarity of public electrode voltages.
On the other hand, the embodiment of the invention also provides a kind of liquid crystal panel, described liquid crystal panel comprises grid line, data line, thin film transistor (TFT), pixel cell, each pixel cell connects a thin film transistor (TFT), the described grid line of first row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of first row, the described grid line of last column links to each other with the described thin film transistor (TFT) of the even column of the described pixel cell of last column, and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of be expert at and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of even column of the described pixel cell of adjacent lastrow.
The liquid crystal panel drive method that the embodiment of the invention provides and liquid crystal panel, by the counter-rotating of several times subframe unit is set in the frame counter-rotating, subframe unit comprises at least one pixel cell in the liquid crystal panel, the subframe unit counter-rotating is used for the polarity of subframe unit is reversed, make each pixel cell in the liquid crystal panel after a frame Umklapp process is finished, carry out a reversal of poles, thereby reduced the situation that liquid crystal panel produces flicker and crosstalks, improved the display effect of liquid crystal panel and display device.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the liquid crystal panel of the embodiment of the invention shows one of image synoptic diagram;
Fig. 2 is that the liquid crystal panel of the embodiment of the invention shows two of image synoptic diagram;
Fig. 3 is one of liquid crystal panel drive method of the embodiment of the invention;
Fig. 4 be the embodiment of the invention liquid crystal panel drive method two;
Fig. 5 is one of liquid crystal panel synoptic diagram that adopts embodiment of the invention driving method;
Fig. 6 is two of the liquid crystal panel synoptic diagram that adopts embodiment of the invention driving method;
Fig. 7 is three of the liquid crystal panel synoptic diagram that adopts embodiment of the invention driving method.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Below in conjunction with following accompanying drawing the embodiment of the invention is described in detail.
The embodiment of the invention provides a kind of liquid crystal panel drive method, described liquid crystal panel comprises a plurality of pixel cells, drive element of the grid and data-driven unit and employing frame inversion driving mode display graphics, described frame counter-rotating comprises the counter-rotating of several times subframe unit, described subframe unit comprises at least one pixel cell in the described liquid crystal panel, described subframe unit counter-rotating is used for by the data-driven unit polarity of described subframe unit being reversed under the control of described drive element of the grid, and each pixel cell in the described liquid crystal panel carries out a reversal of poles after a frame Umklapp process is finished.
Need to prove that liquid crystal panel changes to reach the effect that changes the demonstration image by driving Liquid Crystal Molecules Alignment.Therefore make liquid crystal molecule deterioration, liquid crystal panel use alternating voltage to drive liquid crystal molecule usually for avoiding reversing liquid crystal molecule for a long time.A kind of type of drive as liquid crystal panel, the frame inversion driving mode can specifically describe and be: if the whole pixel cells of former frame liquid crystal panel are exported the data of a certain polarity, the data that will export opposite polarity at the whole pixel cells of next frame liquid crystal panel also circulate in turn.Wherein, the polarity of pixel cell refers to the polarity of pixel voltage for public electrode voltages of pixel cell, includes two types of positive polarity and negative polarity.For instance, as depicted in figs. 1 and 2, be example with the liquid crystal panel that comprises four lines four row pixels, the frame inversion driving mode can be described as: in the whole pixel cells of the first frame liquid crystal panel data of output cathode as shown in Figure 1, in the whole pixel cells of the second frame liquid crystal panel data of output negative pole as shown in Figure 2, in the whole pixel cells of the 3rd frame liquid crystal panel data of output cathode as shown in Figure 1, in the whole pixel cells of the 4th frame liquid crystal panel data of output negative pole as shown in Figure 2, ..., circulation successively.
And as a kind of embodiment of the present invention, be that example is described with the above-mentioned liquid crystal panel of mentioning first frame and second frame as a complete frame Umklapp process, the counter-rotating of several times subframe unit is set in this frame Umklapp process.Be the simple and clear description embodiment of the invention, be provided with twice subframe unit at this in this frame Umklapp process and be reversed to example.As shown in Figure 3, liquid crystal panel comprises a plurality of pixel cells, drive element of the grid and data-driven unit and employing frame inversion driving mode display graphics, liquid crystal panel first frame synoptic diagram constantly can be referring among Fig. 3 shown in the S101, at first the t1 of liquid crystal panel after first frame begins begins subframe unit counter-rotating for the first time constantly, wherein subframe unit counter-rotating for the first time is used for by the data-driven unit polarity of at least one pixel cell of liquid crystal panel being reversed under the control of drive element of the grid, for example the pixel cell of subframe unit counter-rotating for the first time comprises the pixel cell that is positioned at odd-numbered line and odd column intersection location place and is positioned at even number line and the pixel cell at even column intersection location place, and the polarity of all the other position pixel cells remains unchanged in the liquid crystal panel, and the liquid crystal panel after this moment, subframe unit counter-rotating was for the first time finished is shown in S102 among Fig. 3.Then after finishing subframe unit counter-rotating for the first time, the t2 of liquid crystal panel after first frame begins begins subframe unit counter-rotating for the second time constantly, wherein subframe unit counter-rotating for the second time is used for by the data-driven unit polarity of at least one pixel cell of liquid crystal panel being reversed under the control of drive element of the grid, for example the pixel cell of subframe unit counter-rotating for the second time comprises the pixel cell that is positioned at odd-numbered line and even column intersection location place and is positioned at even number line and the pixel cell at odd column intersection location place, and the polarity of all the other position pixel cells remains unchanged in the liquid crystal panel, and the liquid crystal panel after this moment, subframe unit counter-rotating was for the second time finished is shown in S103 among Fig. 3.After the subframe unit counter-rotating first time and subframe unit counter-rotating for the second time, liquid crystal panel is finished the frame Umklapp process one time.Need to prove that each pixel cell in the liquid crystal panel has carried out the counter-rotating of a polarity after a frame Umklapp process is finished.
Compare with prior art frame inversion driving mode, in a frame Umklapp process of the liquid crystal panel of the embodiment of the invention, be provided with the counter-rotating of several times subframe unit, subframe unit comprises at least one pixel cell in the liquid crystal panel, the subframe unit counter-rotating comprises the polarity of inverted rotor frame unit, therefore embodiment of the invention liquid crystal panel pixel is not to be disposable with whole pixel cells counter-rotatings in a frame period by subframe unit counter-rotating repeatedly, reduce the possibility of embodiment of the invention liquid crystal panel generation flicker and data-crosstalk, improved the display effect of liquid crystal panel.
Need to prove, first, in above-mentioned embodiment, if first frame is defined as 0 constantly the zero hour, second frame is defined as T constantly the zero hour, it will be understood by those skilled in the art that so subframe unit counter-rotating first time moment t1 and the moment t2 of subframe unit counter-rotating for the second time should satisfy: 0＜t1＜t2≤T.Second, in above-mentioned embodiment, description about the subframe unit counter-rotating first time and the pixel cell that reverses in the subframe unit Umklapp process for the second time only is exemplary description, in fact, the pixel cell of the subframe unit counter-rotating first time in the above-mentioned embodiment and the pixel cell of subframe unit counter-rotating for the second time have multiple possible situation, for example: subframe unit counter-rotating for the first time comprises the pixel cell that is positioned at odd-numbered line and even column intersection location place and is positioned at even number line and the pixel cell at odd column intersection location place that subframe unit counter-rotating for the second time comprises the pixel cell that is positioned at odd-numbered line and odd column intersection location place and is positioned at even number line and the pixel cell at even column intersection location place.Well-determinedly be, no matter for the first time the pixel cell that comprises of the pixel cell that comprises of subframe unit counter-rotating and subframe unit counter-rotating for the second time is to have adopted which kind of possible situation, and each pixel cell of liquid crystal panel has carried out the counter-rotating of a polarity after a frame Umklapp process is finished.
As another kind of possibility of the present invention, the embodiment of the invention proposes another kind of liquid crystal panel drive method.The working background of liquid crystal panel drive method can not repeat them here with reference to above-described embodiment in the present embodiment.Different is in this specific embodiment, to be provided with four subframe unit counter-rotatings in a frame Umklapp process.Same liquid crystal panel second frame that is listed as with liquid crystal panel first frame and the four lines four of four lines four row is as a frame Umklapp process, at first liquid crystal panel at first frame synoptic diagram constantly shown in S111 among Fig. 4, t1 ' the moment of liquid crystal panel after first frame begins begins subframe unit counter-rotating for the first time, wherein the polarity of at least one pixel cell in the liquid crystal panel is reversed in subframe unit counter-rotating for the first time, for example the pixel cell of subframe unit counter-rotating for the first time comprises the pixel cell that is positioned at odd-numbered line and odd column intersection location place, the pixel cell polarity that the first time, subframe unit comprised is reversed, and the polarity of all the other position pixel cells remains unchanged in the liquid crystal panel, and the liquid crystal panel after this moment, subframe unit counter-rotating was for the first time finished is shown in S112 among Fig. 4; Then after finishing the counter-rotating of first subframe unit, t2 ' the moment of liquid crystal panel after first frame begins begins subframe unit counter-rotating for the second time, wherein the polarity of at least one pixel cell in the liquid crystal panel is reversed in subframe unit counter-rotating for the second time, for example the pixel cell of subframe unit counter-rotating for the second time comprises the pixel cell that is positioned at odd-numbered line and even column intersection location place, the pixel cell polarity that the second time, subframe unit comprised is reversed, and the polarity of all the other position pixel cells remains unchanged in the liquid crystal panel, and the liquid crystal panel after this moment, subframe unit counter-rotating was for the second time finished is shown in S113 among Fig. 4; Then after finishing subframe unit counter-rotating for the second time, t3 ' the moment of liquid crystal panel after first frame begins begins subframe unit counter-rotating for the third time, wherein the polarity of at least one pixel cell in the liquid crystal panel is reversed in subframe unit counter-rotating for the third time, for example the pixel cell of subframe unit counter-rotating for the third time comprises the pixel cell that is positioned at even number line and odd column intersection location place, the pixel cell polarity that subframe unit for the third time comprises is reversed, and the polarity of all the other position pixel cells remains unchanged in the liquid crystal panel, and the liquid crystal panel after this moment, subframe unit counter-rotating was for the third time finished is shown in S114 among Fig. 4; Then after finishing subframe unit counter-rotating for the third time, t4 ' the moment of liquid crystal panel after first frame begins begins the 4th subframe unit counter-rotating, wherein the polarity of at least one pixel cell in the liquid crystal panel is reversed in the 4th subframe unit counter-rotating, for example the pixel cell of the 4th subframe unit counter-rotating comprises the pixel cell that is positioned at even number line and even column intersection location place, the pixel cell polarity that the 4th subframe unit comprises is reversed, and the polarity of all the other position pixel cells remains unchanged in the liquid crystal panel, and the liquid crystal panel after this moment, the 4th subframe unit counter-rotating finished is shown in S115 among Fig. 4.By the subframe unit counter-rotating first time, subframe unit counter-rotating for the second time, subframe unit counter-rotating for the third time and the 4th subframe unit counter-rotating, liquid crystal panel has been finished the frame Umklapp process one time, and each pixel cell in the liquid crystal panel has all carried out the counter-rotating of a polarity after a frame Umklapp process is finished.Wherein, analyze as can be known, in this embodiment, if first frame is defined as 0 constantly the zero hour, second frame is defined as T the zero hour constantly, and t1 ', the subframe unit counter-rotating for the second time constantly of subframe unit counter-rotating so for the first time t2 ', subframe unit counter-rotating for the third time constantly t3 ' and the 4th subframe unit counter-rotating constantly t4 ' constantly should be satisfied: 0＜t1 '＜t2 '＜t3 '＜t4 '≤T.The connected mode of the pixel cell of the liquid crystal panel that comprises according to the corresponding subframe unit of reversing as each subframe unit in the reversal of poles mode of the liquid crystal panel among Fig. 4 can be implemented with reference to connected mode shown in Figure 5.
It should be noted that each pixel cell in the liquid crystal panel carries out a reversal of poles after a frame Umklapp process is finished.And in the concrete process of implementing, no matter the counter-rotating of how many times subframe unit and subframe unit are set comprise which pixel cell, this implementation process all should be thought the content that the present invention comprises.
In addition, what need explanation a bit is, above-mentioned description about polarity is the polarity of pixel voltage for public electrode voltages of the pixel cell that comprises of subframe unit, therefore it will be understood by those skilled in the art that the reversal of poles of the pixel cell that subframe unit comprises comprises two kinds of possible situations: the polarity of pixel voltage is changed into respect to the polarity of the negative polarity of public electrode voltages or pixel voltage by the positive polarity with respect to public electrode voltages and changes positive polarity with respect to public electrode voltages into by the negative polarity with respect to public electrode voltages.
Further, adjacent described subframe unit reversing time is identical at interval.Wherein, adjacent subframe unit reversing time being set identical at interval is in order to make the control procedure that drives liquid crystal panel become simpler, and therefore adjacent subframe unit reversing time is identical at interval is a kind ofly comparatively preferably to select.
Further, the pixel cell of the liquid crystal panel that comprises of described subframe unit is non-conterminous mutually.Need to prove, subframe unit comprises at least one pixel cell in the liquid crystal panel, if the pixel cell that subframe unit comprises is adjacent, adjacent unit pixel may influence each other when reversal of poles, cause glimmering and the situation of data-crosstalk takes place, therefore, the pixel cell of the liquid crystal panel that comprises of subframe unit is non-conterminous mutually is a kind ofly comparatively preferably to select.
Further, the polarity of described subframe unit is that the pixel voltage of the pixel cell that comprises of described subframe unit is with respect to the polarity of public electrode voltages.
The liquid crystal panel drive method that the embodiment of the invention provides, by the counter-rotating of several times subframe unit is set in the frame counter-rotating, subframe unit comprises at least one pixel cell in the liquid crystal panel, the subframe unit counter-rotating comprises the polarity of inverted rotor frame unit, each pixel cell in the liquid crystal panel carries out a reversal of poles after a frame Umklapp process is finished, thereby reduced the situation that liquid crystal panel produces flicker and crosstalks, improved the display effect of liquid crystal panel and display device.
Further, a kind of embodiment as the embodiment of the invention, extremely shown in Figure 7 as Fig. 5, comprise grid line 1 in the described liquid crystal panel, data line 2, thin film transistor (TFT) 3, pixel cell 4, drive element of the grid 5, data-driven unit 6 etc., each pixel cell 4 connects a thin film transistor (TFT) 3, wherein, the first row grid line links to each other with the odd column thin film transistor (TFT) of the first row pixel cell, last column grid line links to each other with the even column thin film transistor (TFT) of last column pixel cell, the remaining row grid line links to each other with the odd column thin film transistor (TFT) of being expert at pixel cell and the remaining row grid line links to each other with the even column thin film transistor (TFT) of adjacent lastrow pixel cell, the pixel cell that is connected with the odd-numbered line grid line is first subframe unit, and the pixel cell that is connected with the even number line grid line is second subframe unit.The frame counter-rotating comprises the counter-rotating of first subframe unit and the counter-rotating of second subframe unit.
For instance, be example with as shown in Figure 5 liquid crystal panel, the course of work of liquid crystal panel can be understood as: drive element of the grid 5 is used for providing control signal, this control signal is opened corresponding thin film transistor (TFT) 3 by grid line 1, data-driven unit 6 is used for providing the demonstration data then, and these demonstration data are transferred to pixel cell 4 by data line 2 and carry out the image demonstration.Show the positive-negative polarity information that comprises data message and data in the data.For the easier embodiment of the invention of understanding, do not consider the concrete condition of data message at this, and only be described with the positive-negative polarity of data.
Need to prove that because the difference in the liquid crystal panel design, wherein there is multiple possibility situation in the connected mode of grid line, data line, thin film transistor (TFT) and pixel cell.Therefore liquid crystal panel is being carried out in the sub-frame drive procedure, not only to consider the driving sequential of liquid crystal panel, also need in conjunction with connected mode is to driving the influence of sequential between grid line, data line, thin film transistor (TFT) and the pixel cell in the liquid crystal panel, the structure connected mode is corresponding to reach the purpose of carrying out sub-frame drive with the control sequential.And as the description of driving sequential relevant in the structure of the described liquid crystal panel of Fig. 5 to Fig. 7 and the present embodiment, only conveniently understand the embodiment of the invention for those skilled in the art, be not limitation of the invention further.
Concrete, be example with the liquid crystal panel that comprises four lines grid line four column data lines, as shown in Figure 5, at first liquid crystal panel carries out the demonstration of first two field picture, shows in each pixel cell 4 in the liquid crystal panel that at this moment the charge polarity of image just is; Drive liquid crystal panel with the frame inversion driving mode, the frame counter-rotating comprises the counter-rotating of first subframe unit and the counter-rotating of second subframe unit, wherein, first subframe unit is the pixel cell that is connected with the odd-numbered line grid line, and second subframe unit is the pixel cell that is connected with the even number line grid line.At first, liquid crystal panel begins back t1 at first frame and begins the counter-rotating of first subframe unit constantly, in conjunction with liquid crystal panel as shown in Figure 5, its driving process can be described as, liquid crystal panel is in the first subframe unit Umklapp process, drive element of the grid 5 provides control signal, and the thin film transistor (TFT) 3 that is connected with odd-numbered line grid line 1 is opened in control, and data-driven unit 6 provides the data message of negative polarity.Therefore first subframe unit receives the data message of this negative polarity and reversal of poles takes place, and the pixel cell of all the other positions remains unchanged, and liquid crystal panel as shown in Figure 6 at this moment.
Then, liquid crystal panel begins back t2 at first frame and begins the counter-rotating of second subframe constantly, in conjunction with liquid crystal panel as shown in Figure 6, its driving process can be described as, liquid crystal panel is in the second subframe unit Umklapp process, drive element of the grid 5 provides control signal, and the thin film transistor (TFT) 3 that is connected with even number line grid line 1 is opened in control, and data-driven unit 6 provides the data message of negative polarity.Therefore second subframe unit receives the data message of negative polarity and reversal of poles takes place, and the pixel cell of all the other positions remains unchanged, and liquid crystal panel as shown in Figure 7 at this moment.After the counter-rotating of first subframe unit and the counter-rotating of second subframe unit, liquid crystal panel has been finished the frame Umklapp process one time.
Need to prove that each pixel cell in the liquid crystal panel has carried out the counter-rotating of a polarity after a frame Umklapp process is finished.And it will be appreciated by those skilled in the art that, the description of above-mentioned structure about liquid crystal panel only is to understand embodiment of the invention liquid crystal panel drive method for what be more prone to, and be not limitation of the invention further, in fact, the structure of embodiment of the invention liquid crystal panel can be adjusted according to actual needs by the staff, does not do at this and gives unnecessary details.
The liquid crystal panel drive method that the embodiment of the invention provides, by the counter-rotating of several times subframe unit is set in the frame counter-rotating, subframe unit comprises at least one pixel cell in the liquid crystal panel, the subframe unit counter-rotating comprises the polarity of inverted rotor frame unit, each pixel cell in the liquid crystal panel carries out a reversal of poles after a frame Umklapp process is finished, thereby reduced the situation that liquid crystal panel produces flicker and crosstalks, improved the display effect of liquid crystal panel and display device.
On the other hand, the embodiment of the invention also provides a kind of liquid crystal panel, this liquid crystal panel has adopted the above-mentioned liquid crystal panel drive method of mentioning, its driving method can with reference in above-described embodiment at the description of driving method, adopt the structure of the liquid crystal panel of described driving method may have a variety of, when wherein adopting described frame counter-rotating to comprise the liquid crystal panel of two subframe unit counter-rotatings, described liquid crystal panel comprises grid line, data line, thin film transistor (TFT), pixel cell, each pixel cell connects a thin film transistor (TFT), the described grid line of first row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of first row, the described grid line of last column links to each other with the described thin film transistor (TFT) of the even column of the described pixel cell of last column, and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of be expert at and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of even column of the described pixel cell of adjacent lastrow.
The liquid crystal panel that the embodiment of the invention provides, wherein in liquid crystal panel driving process, reverse by in the frame counter-rotating, the several times subframe unit being set, subframe unit comprises at least one pixel cell in the liquid crystal panel, the subframe unit counter-rotating comprises the polarity of inverted rotor frame unit, each pixel cell in the liquid crystal panel carries out a reversal of poles after a frame Umklapp process is finished, thereby reduced the situation that liquid crystal panel produces flicker and crosstalks, improved the display effect of liquid crystal panel and display device.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (6)
1. liquid crystal panel drive method, described liquid crystal panel comprises a plurality of pixel cells, drive element of the grid and data-driven unit, and described liquid crystal panel adopts frame inversion driving mode display graphics, it is characterized in that, described frame counter-rotating comprises the counter-rotating of several times subframe unit, described subframe unit comprises at least one pixel cell in the described liquid crystal panel, described subframe unit counter-rotating is used for by the data-driven unit polarity of described subframe unit being reversed under the control of described drive element of the grid, and each pixel cell in the described liquid crystal panel carries out a reversal of poles after a frame Umklapp process is finished.
2. liquid crystal panel drive method according to claim 1, it is characterized in that, described liquid crystal panel also comprises grid line, data line, thin film transistor (TFT), each pixel cell connects a thin film transistor (TFT), the described grid line of first row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of first row, the described grid line of last column links to each other with the described thin film transistor (TFT) of the even column of the described pixel cell of last column, the described grid line of remaining row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of be expert at and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of even column of the described pixel cell of adjacent lastrow, the described pixel cell that is connected with described odd-numbered line grid line is first subframe unit, and the described pixel cell that is connected with described even number line grid line is second subframe unit;
Described frame counter-rotating comprises the counter-rotating of first subframe unit and the counter-rotating of second subframe unit.
3. liquid crystal panel drive method according to claim 1 is characterized in that, the time interval of adjacent described subframe unit counter-rotating is identical.
4. liquid crystal panel drive method according to claim 1 is characterized in that, the pixel cell of the liquid crystal panel that described subframe unit comprises is non-conterminous mutually.
5. liquid crystal panel drive method according to claim 1 is characterized in that, the polarity of described subframe unit is that the pixel voltage of the pixel cell that comprises of described subframe unit is with respect to the polarity of public electrode voltages.
6. one kind is adopted the liquid crystal panel of driving method according to claim 1, it is characterized in that, described liquid crystal panel comprises grid line, data line, thin film transistor (TFT), pixel cell, each pixel cell connects a thin film transistor (TFT), the described grid line of first row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of first row, the described grid line of last column links to each other with the described thin film transistor (TFT) of the even column of the described pixel cell of last column, and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of odd column of the described pixel cell of be expert at and the described grid line of remaining row links to each other with the described thin film transistor (TFT) of even column of the described pixel cell of adjacent lastrow.
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| CN201310214122.6A CN103293732B (en) | 2013-05-31 | 2013-05-31 | Liquid crystal panel drive method and liquid crystal panel |
| PCT/CN2013/081969 WO2014190627A1 (en) | 2013-05-31 | 2013-08-21 | Drive method for liquid crystal panel, and liquid crystal panel |
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| CN201310214122.6A CN103293732B (en) | 2013-05-31 | 2013-05-31 | Liquid crystal panel drive method and liquid crystal panel |
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| CN103293732B CN103293732B (en) | 2015-11-25 |
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| CN103399440A (en) * | 2013-08-08 | 2013-11-20 | 京东方科技集团股份有限公司 | Array substrate, display device and drive method |
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| CN106782390A (en) * | 2016-12-30 | 2017-05-31 | 深圳市华星光电技术有限公司 | Method, display panel and device for driving display panel |
| CN108169970A (en) * | 2018-01-02 | 2018-06-15 | 京东方科技集团股份有限公司 | Display base plate and its driving method, display device |
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Also Published As
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| CN103293732B (en) | 2015-11-25 |
| WO2014190627A1 (en) | 2014-12-04 |
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