CN105116656A - Pixel driving method, pixel driving device and display device - Google Patents
Pixel driving method, pixel driving device and display device Download PDFInfo
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- CN105116656A CN105116656A CN201510610847.6A CN201510610847A CN105116656A CN 105116656 A CN105116656 A CN 105116656A CN 201510610847 A CN201510610847 A CN 201510610847A CN 105116656 A CN105116656 A CN 105116656A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
The invention provides a pixel driving method, a pixel driving device and a display device. An applied array substrate comprises sub-pixels limited by data lines and grid lines. Two rows of sub-pixels are arranged between every two adjacent data lines. Each data line is connected with the sub-pixels on the two sides of the data line. Two rows of grid lines are arranged between every two rows of sub-pixels. The upper side and the lower side of each row of sub-pixels each correspond to one grid line. In the sub-pixel in the same row, the grid line on one side drives an odd number of sub-pixels, and the grid line on the other side drives an even number of sub-pixels. The pixel drive method includes the steps that in all the display time, data signals are loaded on all the data lines at the same time; in the display time of one frame of image, scanning signals are loaded on the grid lines gradually in sequence, and when the scanning signals are loaded on the Kth row of grid lines, the polarity of all the data signals is reversed; K is equal to 4+(i-1)*3, wherein i is a positive integral between 1 and N, and N is the number of rows of the grid lines. The pixel driving method, the pixel driving device and the display device can effectively prevent a bright fringe and a dark fringe from occurring in a display image.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly a kind of image element driving method, pixel driving device and display device.
Background technology
In liquid crystal indicator, the polarity (i.e. data-signal polarity) being applied to the voltage difference on liquid crystal molecule must be reversed at set intervals, permanent destruction is caused, also in order to avoid image residual effect owing to producing polarization in order to avoid liquid crystal material.
Wherein, two point form reversion (2Dot-Inversion) is the most frequently used a kind of inversion mode of liquid crystal indicator.After the reversion of two point form point refers to its two pixel chargings be responsible for of data line often pair, the polarity of a reversion data-signal.
For market with keen competition, liquid crystal display, for reducing costs, often adopts double grid type of drive.And the duration of charging that the sub-pixel in double-gate structure obtains data-signal can reduce by half, therefore carry out at data-signal in the process of reversal of poles, some sub-pixel will inevitably be caused not charged fully.
For the double-gate structure shown in Fig. 1, suppose to comprise data line S1-S4 and grid line G1-G12.Employing two point form reverses, and so arrow indication is the sub-pixel (i.e. the grid of shadow region) that data-signal carries out carrying out in the reversal of poles time charging.Because data-signal to need from a reversal of poles to another polarity to consume portion of time, this causes the sub-pixel of arrow indication not obtain expecting charging effect under charging room when limited.
As can be seen from Figure 1, adopt the polarity of two point form inverted data signal, the sub-pixel of side in set of data lines finally can be caused effectively not charged, and then in display effect, there will be bright dark lines.
Summary of the invention
The object of the invention is to eliminate display device in display frame, occur bright dark lines.
For achieving the above object, embodiments of the invention provide a kind of image element driving method, are applied to array base palte, and described array base palte comprises multiple sub-pixels that many grid lines, the data line that are intersected by transverse and longitudinal limit; Wherein, between adjacent two column data lines, be provided with two row sub-pixels, and every column data line is connected with the sub-pixel of its both sides; Be provided with two row grid lines between adjacent rows sub-pixel, and often the upper and lower both sides of row sub-pixel are all to having grid line, in same a line sub-pixel, side grid line is responsible for driving odd bits sub-pixel, and opposite side grid line is responsible for driving even bit sub-pixel;
Described image element driving method comprises:
In the displaying time of whole picture, data-signal is loaded to all data lines simultaneously;
In the displaying time of a frame picture, successively sweep signal is loaded to all grid lines according to line order, and when the grid line of line K loads sweep signal, the polarity of the data-signal that all data lines that reverses load; Wherein, K=4+ (i-1) × 3, i is the positive integer of [1, N], and N is the line number of grid line.
Wherein, each sub-pixel also comprises thin film transistor (TFT);
Every column data line is specifically connected with the thin film transistor (TFT) of the sub-pixel of its both sides;
In same a line sub-pixel, side grid line is specifically responsible for the thin film transistor (TFT) driving odd bits sub-pixel, and opposite side grid line is specifically responsible for the thin film transistor (TFT) driving even bit sub-pixel.
Wherein, the data-signal of adjacent two data line has opposed polarity.
In addition, another embodiment of the present invention also provides a kind of pixel driving device, is applied to array base palte, and described array base palte comprises multiple sub-pixels that many grid lines, the data line that are intersected by transverse and longitudinal limit; Wherein, between adjacent two column data lines, be provided with two row sub-pixels, and every column data line is connected with the sub-pixel of its both sides; Be provided with two row grid lines between adjacent rows sub-pixel, and often the upper and lower both sides of row sub-pixel are all to having grid line, in same a line sub-pixel, side grid line is responsible for driving odd bits sub-pixel, and opposite side grid line is responsible for driving even bit sub-pixel;
Described pixel driving device comprises:
First driver module, in the displaying time of whole picture, loads data-signal to all data lines simultaneously;
Second driver module, in the displaying time of a frame picture, successively loads sweep signal to all grid lines according to line order;
Wherein, when described second driver module loads sweep signal to the grid line of line K, described first driver module reverses the polarity of the data-signal that all data lines load; Wherein, K=4+ (i-1) × 3, i is the positive integer of [1, N], and N is the line number of grid line.
Wherein, in whole displaying times, described first driver module is the data-signal that adjacent two data line loads different polarity.
In addition, another embodiment of the present invention also provides a kind of display device comprising above-mentioned pixel driving device.
The beneficial effect of technique scheme of the present invention is as follows:
Factor data signal generation reversal of poles can cause the sub-pixel of undercharge to be dispersed in diverse location in conjunction with image element driving method of the present invention by array base-plate structure of the present invention, thus eliminates the bright dark lines that screen occurs.
Accompanying drawing explanation
Fig. 1 is the driving effect schematic diagram of existing image element driving method;
Fig. 2 is the structural representation of bigrid array base palte;
Fig. 3 A-Fig. 3 E is the driving effect schematic diagram of image element driving method of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
For prior art Problems existing, the invention provides the image element driving method that is applicable to double-gate structure array base palte, can the sub-pixel of undercharge be caused to be dispersed in diverse location factor data signal generation reversal of poles, thus eliminate the bright dark lines that screen occurs.
As shown in Figure 2, the array base palte of double grid drives structure comprises:
By data line (i.e. longitudinal straight line in Fig. 1), grid line (i.e. horizontal straight line in Fig. 1) and the sub-pixel (rectangular parallelepiped namely in Fig. 1) that limited by data line and grid line.
Wherein, be provided with two row sub-pixels between adjacent two data line, and each data line is connected with the sub-pixel of its both sides; Be provided with two row grid lines between adjacent rows sub-pixel, and often the upper and lower both sides of row sub-pixel are all to having grid line, in same a line sub-pixel, side grid line is responsible for driving odd bits sub-pixel, and opposite side grid line is responsible for driving even bit sub-pixel.
Particularly, each sub-pixel includes a thin film transistor (TFT) (i.e. oval dotted line in Fig. 1), and each data line is specifically connected with the thin film transistor (TFT) of the sub-pixel of its both sides.And in same a line sub-pixel, side grid line is specifically responsible for the thin film transistor (TFT) driving odd bits sub-pixel, opposite side grid line is specifically responsible for the thin film transistor (TFT) driving even bit sub-pixel.
Accordingly, the invention provides a kind of image element driving method being applicable to above-mentioned array base-plate structure, comprising:
In the displaying time of whole picture, data-signal is loaded to all data lines simultaneously;
In the displaying time of a frame picture, successively sweep signal is loaded to all grid lines according to line order; And when the grid line of line K loads sweep signal, the polarity of the data-signal that all data lines that reverses load; Wherein, K=4+ (i-1) × 3, i is the positive integer of [1, N], and N is the line number of grid line.
As the exemplary introduction of above-mentioned driving method, with reference to the array base palte shown in figure 2, this array base-plate structure is same as shown in Figure 1, comprising: data line S1-S4, and grid line G1-G12.
For data line S1-S4, need, in the displaying time of whole picture, to load data-signal simultaneously.Wherein, the data-signal of S1 and S3 is positive polarity, and the data-signal of S2 and S4 is negative polarity.
For grid line G1-G12, often in the displaying time of a frame picture, load surface sweeping signal line by line.Can know according to formula K=4+ (i-1) × 3 described before, in the displaying time of a frame picture, after having 3 row grid lines to load surface sweeping signal, the data-signal on all data lines performs a reversal of poles.
Here it should be noted that, after having the grid line of more than 4 row or 4 row to load surface sweeping signal, data-signal again on control data line performs a reversal of poles, although the bright dark lines that picture occurs also can be eliminated, but the reversal frequency of data-signal is too low, liquid crystal material can be caused to produce polarization and cause permanent destruction.
Below the grid line in the displaying time of a frame picture is driven and be specifically introduced.
As shown in Figure 3A, after grid line G1 starts to load surface sweeping signal, the thin film transistor (TFT) (i.e. oval dotted line) driven by grid line G1 is opened, and lays respectively on the right side of data line S1-S4, the sub-pixel of the first row charged.
As shown in Figure 3 B, after grid line G2 starts to load surface sweeping signal, the thin film transistor (TFT) (i.e. oval dotted line) driven by grid line G2 is opened, and lays respectively on the left of data line S1-S4, the sub-pixel of the first row charged.
As shown in Figure 3 C, after grid line G3 starts to load surface sweeping signal, the thin film transistor (TFT) (i.e. oval dotted line) driven by grid line G3 is opened, and lays respectively on the right side of data line S1-S4, the sub-pixel of the second row charged.
As shown in Figure 3 D, after grid line G4 starts to load surface sweeping signal, the thin film transistor (TFT) (i.e. oval dotted line) driven by grid line G3 is opened, now data line S1-S4 starts to reverse the polarity of its data-signal, lay respectively on the left of data line S1-S4, charging that the sub-pixel of the second row is not punished, lower than several sub-pixel above in brightness.
By above-mentioned driving method, after last grid line G12 has loaded sweep signal, as shown in FIGURE 3 E, arrow indication has been the sub-pixel (i.e. the grid of shadow region) of the generation reversal of poles of factor data signal and undercharge to whole array base palte.
As can be seen from Fig. 3 E, adopt image element driving method of the present invention, the sub-pixel that brightness is lower because of undercharge can be made to be alternately distributed in the both sides of data line S1-S4, see if be reflected in display effect, the sub-pixel of scattered low-light level is difficult to by naked eyes identification, therefore effectively eliminates screen and occurs bright dark lines.
In addition, the present invention also provides a kind of pixel driving device, and be applied to the array base palte of above-mentioned double grid drives structure, described pixel driving device comprises:
First driver module, in the displaying time of whole picture, loads data-signal to all data lines simultaneously;
Second driver module, in the displaying time of a frame picture, successively loads sweep signal to all grid lines according to line order;
Wherein, when described second driver module loads sweep signal to the grid line of line K, described first driver module reverses the polarity of the data-signal that all data lines load; Wherein, K=4+ (i-1) × 3, i is the positive integer of [1, N], and N is the line number of grid line.
Wherein, in whole displaying times, described first driver module is the data-signal that adjacent two data line loads different polarity.
Obviously, the pixel driving device of the present embodiment, as the executive agent of image element driving method of the present invention, can realize identical beneficial effect with this image element driving method.
In addition, another embodiment of the present invention also provides the display device comprising above-mentioned pixel driving device (as mobile phone, panel computer, TV etc.), can in display frame, avoids the bright dark striped of appearance one.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. an image element driving method, is applied to array base palte, and described array base palte comprises many grid lines, the multiple sub-pixels in data line that are arranged on transverse and longitudinal and intersect; Wherein, between adjacent two column data lines, be provided with two row sub-pixels, and every column data line is connected with the sub-pixel of its both sides; Be provided with two row grid lines between adjacent rows sub-pixel, and often the upper and lower both sides of row sub-pixel are all to having grid line, in same a line sub-pixel, side grid line is responsible for driving odd bits sub-pixel, and opposite side grid line is responsible for driving even bit sub-pixel;
It is characterized in that, described image element driving method comprises:
In the displaying time of whole picture, data-signal is loaded to all data lines simultaneously;
In the displaying time of a frame picture, successively sweep signal is loaded to all grid lines according to line order, and when the grid line of line K loads sweep signal, the polarity of the data-signal that all data lines that reverses load; Wherein, K=4+ (i-1) × 3, i is the positive integer of [1, N], and N is the line number of grid line.
2. image element driving method according to claim 1, is characterized in that,
Each sub-pixel also comprises thin film transistor (TFT);
Every column data line is specifically connected with the thin film transistor (TFT) of the sub-pixel of its both sides;
In same a line sub-pixel, side grid line is specifically responsible for the thin film transistor (TFT) driving odd bits sub-pixel, and opposite side grid line is specifically responsible for the thin film transistor (TFT) driving even bit sub-pixel.
3. image element driving method according to claim 1, is characterized in that,
The data-signal of adjacent two data line has opposed polarity.
4. a pixel driving device, is applied to array base palte, and described array base palte comprises multiple sub-pixels that many grid lines, the data line that are intersected by transverse and longitudinal limit; Wherein, between adjacent two column data lines, be provided with two row sub-pixels, and every column data line is connected with the sub-pixel of its both sides; Be provided with two row grid lines between adjacent rows sub-pixel, and often the upper and lower both sides of row sub-pixel are all to having grid line, in same a line sub-pixel, side grid line is responsible for driving odd bits sub-pixel, and opposite side grid line is responsible for driving even bit sub-pixel;
It is characterized in that, described drive unit comprises:
First driver module, in the displaying time of whole picture, loads data-signal to all data lines simultaneously;
Second driver module, in the displaying time of a frame picture, successively loads sweep signal to all grid lines according to line order;
Wherein, when described second driver module loads sweep signal to the grid line of line K, described first driver module reverses the polarity of the data-signal that all data lines load; Wherein, K=4+ (i-1) × 3, i is the positive integer of [1, N], and N is the line number of grid line.
5. pixel driving device according to claim 4, is characterized in that,
In whole displaying times, described first driver module is the data-signal that adjacent two data line loads different polarity.
6. a display device, is characterized in that, comprises the pixel driving device as described in any one of claim 4 or 5.
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| CN201510610847.6A CN105116656A (en) | 2015-09-23 | 2015-09-23 | Pixel driving method, pixel driving device and display device |
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| CN201510610847.6A CN105116656A (en) | 2015-09-23 | 2015-09-23 | Pixel driving method, pixel driving device and display device |
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Cited By (11)
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| CN107526223A (en) * | 2016-06-15 | 2017-12-29 | 三星显示有限公司 | Display panel |
| CN109346017A (en) * | 2018-10-22 | 2019-02-15 | 惠科股份有限公司 | Display panel |
| CN109817150A (en) * | 2019-03-28 | 2019-05-28 | 京东方科技集团股份有限公司 | A kind of image element driving method, pixel driving device and display device |
| WO2019144470A1 (en) * | 2018-01-26 | 2019-08-01 | 深圳市华星光电半导体显示技术有限公司 | Display panel and liquid crystal display |
| CN110174804A (en) * | 2019-06-27 | 2019-08-27 | 上海中航光电子有限公司 | A kind of array substrate, display panel, its driving method and display device |
| CN110223624A (en) * | 2019-07-18 | 2019-09-10 | 京东方科技集团股份有限公司 | Image element driving method and its circuit and display device |
| CN110531558A (en) * | 2019-08-29 | 2019-12-03 | 上海中航光电子有限公司 | Array substrate, liquid crystal display panel and display device |
| CN110782827A (en) * | 2019-11-28 | 2020-02-11 | 京东方科技集团股份有限公司 | Gate drive circuit, voltage regulation method and display device |
| CN111679527A (en) * | 2020-06-30 | 2020-09-18 | 上海天马微电子有限公司 | Array substrate, driving method thereof and display device |
| WO2020233549A1 (en) * | 2019-05-22 | 2020-11-26 | 京东方科技集团股份有限公司 | Array substrate and driving method thereof, and display device |
| CN113744698A (en) * | 2021-07-30 | 2021-12-03 | 北海惠科光电技术有限公司 | Driving method of array substrate, array substrate and display panel |
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| CN110782827A (en) * | 2019-11-28 | 2020-02-11 | 京东方科技集团股份有限公司 | Gate drive circuit, voltage regulation method and display device |
| CN111679527A (en) * | 2020-06-30 | 2020-09-18 | 上海天马微电子有限公司 | Array substrate, driving method thereof and display device |
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| CN113744698A (en) * | 2021-07-30 | 2021-12-03 | 北海惠科光电技术有限公司 | Driving method of array substrate, array substrate and display panel |
| US11749221B2 (en) | 2021-07-30 | 2023-09-05 | Beihai Hkc Optoelectronics Technology Co., Ltd. | Driving method of array substrate, and array substrate |
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Application publication date: 20151202 |