CN109377927B - Driving method, driving circuit, display panel and storage medium - Google Patents
Driving method, driving circuit, display panel and storage medium Download PDFInfo
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- 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
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Abstract
The embodiment of the application provides a driving method, a driving circuit, a display panel and a storage medium, wherein one side of each row of pixels of the display panel is provided with an odd row scanning line, the other side of each row of pixels of the display panel is provided with an even row scanning line, the odd row scanning line is connected with odd column pixels, and the even row scanning line is connected with even column pixels; in a driving period of each row of pixels, the driving method comprises the following steps: in a first time period, the odd-numbered scanning lines drive first pixels which are connected with the odd-numbered scanning lines and are precharged to stop precharging, and the even-numbered scanning lines drive second pixels which are connected with the even-numbered scanning lines to be precharged; in a second time period, the odd-numbered scanning lines drive the first pixels to be charged, and the even-numbered scanning lines drive the second pixels to stop precharging; in the third time period, the odd-numbered scanning lines drive the first pixels to stop charging, the even-numbered scanning lines drive the second pixels to charge, and the second pixels are driven to stop charging at the end of the third time period. The phenomenon that the brightness of two adjacent columns of pixels is different is effectively avoided.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a driving method, a driving circuit, a display panel, and a storage medium.
Background
In the related art, the pixels in the display panel adopt a pre-charging method, so that the charging time of the pixels can be shortened, and the charging rate of the pixels can be improved. However, the brightness of the pixels in two adjacent columns is not uniform.
Disclosure of Invention
The embodiment of the application provides a driving method, a driving circuit, a display panel and a storage medium, which can avoid the phenomenon of different brightness of pixels in two adjacent columns.
The embodiment of the application provides a driving method, which is applied to a display panel, wherein the display panel comprises a plurality of pixels distributed in an array manner, one side of each row of pixels is provided with an odd-numbered row scanning line, the other side of each row of pixels is provided with an even-numbered row scanning line, the odd-numbered row scanning line is connected with odd-numbered column pixels, and the even-numbered row scanning line is connected with even-numbered column pixels; in the driving period of each row of pixels, the driving method comprises the following steps:
in a first time period, the odd-numbered scanning lines drive first pixels which are connected with the odd-numbered scanning lines and are precharged to stop precharging, and the even-numbered scanning lines drive second pixels which are connected with the even-numbered scanning lines to be precharged;
in a second time period, the odd-numbered scanning lines drive the first pixels to be charged, and the even-numbered scanning lines drive the second pixels to stop precharging;
in a third time period, the odd-numbered scanning lines drive the first pixels to stop charging, the even-numbered scanning lines drive the second pixels to charge, and the second pixels are driven to stop charging at the end of the third time period.
The embodiment of the present application further provides a driving circuit, which is applied to a display panel, the display panel includes a plurality of pixels distributed in an array, and the driving circuit includes:
the scanning line array comprises a plurality of odd scanning lines and a plurality of even scanning lines, wherein one side of each row of pixels is provided with an odd row scanning line, the other side of each row of pixels is provided with an even row scanning line, each odd row scanning line is connected with odd column pixels, and each even row scanning line is connected with even column pixels;
the driving module controls the odd-numbered scanning lines to drive first pixels which are connected with the odd-numbered scanning lines and are precharged to stop precharging and controls the even-numbered scanning lines to drive second pixels which are connected with the even-numbered scanning lines to precharge in a first time period; in a second time period, controlling the odd-numbered scanning lines to drive the first pixels to be charged, and controlling the even-numbered scanning lines to drive the second pixels to stop precharging; and in a third time period, controlling the odd-numbered scanning lines to drive the first pixels to stop charging, controlling the even-numbered scanning lines to drive the second pixels to charge, and driving the second pixels to stop charging at the end of the third time period.
The embodiment of the present application further provides a display panel, which includes a plurality of pixels distributed in an array and a driving circuit, where the driving circuit is the driving circuit described above.
Embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the driving method are implemented as described above.
According to the driving method, the driving circuit, the display panel and the storage medium provided by the embodiment of the application, firstly, in a first time period, the odd-numbered scanning lines drive the first pixels which are connected with the odd-numbered scanning lines and are precharged, and the even-numbered scanning lines drive the second pixels which are connected with the even-numbered scanning lines to be precharged; then in a second time period, the odd-numbered scanning lines drive the first pixels to be charged, and the even-numbered scanning lines drive the second pixels to stop precharging; and finally, in a third time period, the odd-numbered rows of scanning lines drive the first pixels to stop charging, the even-numbered rows of scanning lines drive the second pixels to charge, and the second pixels are driven to stop charging at the end of the third time period. After the first pixels are charged, the voltage of the first pixels is firstly pulled up by the even-numbered scanning lines and then pulled down when the even-numbered scanning lines are closed, and because the voltage difference between the pull-up and the pull-down is the same, the voltage of the first pixels can not change finally, and therefore the phenomenon that the brightness of the pixels of two adjacent columns is different is effectively avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a driving timing sequence of a display panel according to an embodiment of the present disclosure.
Fig. 3 is a schematic flowchart of a driving method according to an embodiment of the present application.
Fig. 4 is another schematic diagram of a driving timing sequence of a display panel according to an embodiment of the present disclosure.
Fig. 5 is another schematic diagram of a driving timing sequence of a display panel according to an embodiment of the present disclosure.
Detailed Description
Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present application are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
The embodiment of the application provides a driving method, a driving circuit, a display panel and a storage medium. The details will be described below separately.
The embodiment of the application provides a display panel, which comprises a plurality of pixels and a driving circuit, wherein the driving circuit is used for driving the pixels to display images.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. The display panel includes a plurality of pixels and a driving circuit including a plurality of scan lines 220, a plurality of data lines 230, and a driving module 240. The drawings show only a partial configuration of the display panel.
The plurality of pixels 210 are distributed in an array, the plurality of pixels 210 may be divided into a plurality of rows of pixels or a plurality of columns of pixels, the plurality of rows of pixels may be divided into a plurality of rows of odd-numbered pixels and a plurality of rows of even-numbered pixels, which are alternately arranged, and the plurality of columns of pixels may be divided into a plurality of columns of odd-numbered pixels and a plurality of columns of even-numbered pixels, which are alternately arranged. As shown in the figure, the pixels include pixels P11, P12, … …, etc., where the pixels in the row where P11 is located are odd-numbered row pixels, the pixels in the column where P11 is located are odd-numbered column pixels, the pixels in the column where P12 is located are even-numbered column pixels, and the pixels in the row where P21 is located are even-numbered row pixels.
The plurality of scan lines 220 may be divided into a plurality of odd-numbered scan lines (e.g., G11) and a plurality of even-numbered scan lines (e.g., G12) that are alternately disposed, and one scan line is disposed on both sides of each row of pixels, i.e., one row of pixels is disposed between one odd-numbered scan line and one even-numbered scan line. Each odd-numbered row scanning line is connected with the odd-numbered column pixels, and each even-numbered row scanning line is connected with the even-numbered column pixels. As shown, the plurality of scan lines 220 includes scan lines G11, G12, G21, G22, … …, etc., wherein G11, G21, etc. are odd scan lines, and G12, G22, etc. are even scan lines.
Each of the plurality of data lines 230 is disposed between a column of pixels in an odd-numbered column and a column of pixels in an even-numbered column, and each of the data lines is connected to all of the pixels of one of the odd-numbered column and one of the even-numbered column. Specifically, the pixels in the multiple columns can be divided into multiple groups of pixels according to two columns of pixels, each group of pixels includes one column of odd-numbered pixels and one column of even-numbered pixels, each group of pixels corresponds to one data line, each data line is arranged between one column of odd-numbered pixels and one column of even-numbered pixels in each group of pixels, and all the pixels in each group of pixels are connected with one corresponding data line. As shown, the plurality of data lines 230 includes data lines S1, S2, … …, and so on.
Each odd scan line and each even scan line are connected to the driving module 240.
Referring to fig. 2, fig. 2 is a schematic diagram of a driving timing sequence of a display panel according to an embodiment of the present disclosure. The driving module 240 controls the odd-numbered scan line (e.g., G11) to drive the first pixel (e.g., P11) connected thereto and to be precharged to stop precharging and controls the even-numbered scan line (e.g., G12) to drive the second pixel (e.g., P12) connected thereto to be precharged during the first time period T1; in a second time period T2, the odd row scan line (e.g. G11) is controlled to drive the first pixel (e.g. P11) to charge, and the even row scan line (e.g. G12) drives the second pixel (e.g. P12) to stop precharging; during the third period T3, the odd row scan line (e.g., G11) is controlled to drive the first pixel (e.g., P11) to stop charging, and the even row scan line (e.g., G12) is controlled to drive the second pixel (e.g., P12) to charge, and the second pixel (e.g., P12) is driven to stop charging at the end of the third period T3.
In some embodiments, the top of the odd-numbered columns of pixels (e.g., the columns of pixels P11) are connected to the odd-numbered rows of scan lines (e.g., G11), and the bottom of the even-numbered columns of pixels (e.g., the columns of pixels P12) are connected to the even-numbered rows of scan lines (e.g., G12). The pixels in two adjacent rows have adjacent even-numbered scan lines (such as G12) and odd-numbered scan lines (such as G21), and the even-numbered scan lines (such as G12) between the pixels in two rows are driven first and the odd-numbered scan lines (such as G21) between the pixels in two rows are driven according to the scan line driving timing sequence. It is understood that the first scan line of the plurality of scan lines 220 may be an odd number of rows of scan lines (e.g., G11), and disposed outside the first row of pixels, with no other pixels outside the first row of pixels.
It should be noted that the odd-numbered scan lines and the even-numbered scan lines are only used for distinguishing names of the scan lines, and the specific arrangement order of the scan lines is not limited, for example, the plurality of scan lines 220 may be sorted in the order of 1, 2, 3, 4, and … …, and the even-numbered scan lines include the scan lines of the 2 nd, 4 th, and … … th rows. The plurality of scan lines 220 may be sorted in the order of 0, 1, 2, 3, and … …, and the even-numbered scan lines include the 0 th, 2, and … … th scan lines. The display panel may be a liquid crystal display panel.
Referring to fig. 3 in conjunction with fig. 1 and fig. 2, fig. 3 is a schematic flow chart of a driving method according to an embodiment of the present disclosure. The driving method is applied to the display panel, and the display panel may be the display panel in the above embodiments, and is not described herein again. In a driving period of each row of pixels, the driving method comprises the following steps:
101, in the first period T1, the precharge of the first pixel connected to the odd-numbered scanning line drive is stopped, and the precharge of the second pixel connected to the even-numbered scanning line drive is performed.
One side of each row of pixels is provided with an odd row of scanning lines, the other side of each row of pixels is provided with an even row of scanning lines, the top of each row of pixels is connected with the odd row of scanning lines, and the bottom of each row of pixels is connected with the even row of scanning lines. According to the driving time sequence, the odd-numbered scanning lines connected with the pixels of the row are driven firstly, and then the even-numbered scanning lines connected with the pixels of the row are driven. Therefore, in order to increase the charging rate of the pixels, the pixels need to be precharged, so that the charging can be completed quickly when the charging is performed according to the requirements of the display image. For example, because of the polarity of the pixel, the pixel may be negative (e.g., -5V) at the beginning, and may be changed to +5V according to the requirement of the display image, and the change range is large, the time required is long, the pixel can be changed to a positive value (e.g., +1V) first by pre-charging, and the change from +1V to +5V is obviously simpler and faster than the change from-5V to +5V during the subsequent formal charging, thereby improving the response speed of the display screen.
Accordingly, in some embodiments, the driving method further comprises: before the first period T1, the odd row of scan lines drives the first pixel for precharging.
Then, during the first period T1, the odd-numbered scanning lines drive the first pixels to stop precharging, and the even-numbered scanning lines drive the second pixels to precharge.
In some embodiments, the even row scan lines drive the second pixels for precharging before the first time period T1, and during the first time period T1, the even row scan lines continue to drive the second pixels for precharging and the odd row scan lines drive the first pixels being precharged to stop precharging. Here, the odd-row scan line driving the first pixel being precharged may stop precharging at a first initial time of the first period T1. The odd-numbered row of scanning lines may drive the first pixel being precharged to stop precharging at a time in the first period T1.
The second pixel is driven to precharge, then the precharging of the first pixel is stopped, the precharging time length is long, and the charging rate of the pixels is improved.
Referring to fig. 4, fig. 4 is another schematic diagram of a driving timing sequence of a display panel according to an embodiment of the present disclosure. At a first initial timing within the first period T1, the first pixel to which the odd-numbered row of scanning line driving is connected and precharged stops precharging, and the second pixel to which the even-numbered row of scanning line driving is connected precharges.
The duration of the precharge is the same as the duration of charging the first pixel or the duration of charging the second pixel.
Referring to fig. 5, fig. 5 is another schematic diagram of a driving timing sequence of a display panel according to an embodiment of the present disclosure. In the first period T1, after the first pixel being precharged by the odd-numbered scanning line drive stops precharging, the second pixel is precharged by the even-numbered scanning line drive.
102, in the second time period T2, the odd row of scanning lines drives the first pixel to be charged, and the even row of scanning lines drives the second pixel to stop the pre-charging.
During the second time period T2, the odd-numbered scan lines drive the first pixel to be charged, so that the first pixel is required to display an image, for example, the voltage required by the first pixel is +5V, and the voltage is charged to + 5V. In addition, the even-numbered scanning lines drive the second pixels to stop precharging, and the influence of the even-numbered scanning lines on the first pixels is prevented.
In some embodiments, the duration of the first time period T1 is equal to the duration of the second time period T2. The charging time periods of the first pixel and the second pixel are the same, namely the charging time periods of the odd column pixels and the even column pixels are the same, and the consistency of pixel display is better.
103, during the third period T3, the odd-numbered row of scanning lines drives the first pixel to stop charging, the even-numbered row of scanning lines drives the second pixel to charge, and the second pixel is driven to stop charging at the end of the third period T3.
In the third period T3, after the first pixel completes charging, the odd-numbered scanning lines drive the first pixel to stop charging, and the even-numbered scanning lines drive the second pixel to start charging. After the first pixel in the odd-numbered columns of pixels is charged, the voltage of the first pixel is firstly pulled up by the even-numbered scanning lines in the next row, and then pulled down when the even-numbered scanning lines in the next row are closed. The problems that in the related art, when a pure gray scale picture is displayed, the brightness of pixels in left and right rows is different, vertical stripe mura and the like are solved. The specific reason is that the voltage of the odd-numbered columns of pixels is pulled down when the next row of scanning lines is pulled down due to the fact that the odd-numbered columns of pixels have coupling capacitors with the next row of scanning lines (even-numbered rows of scanning lines), and the even-numbered columns of pixels do not have the phenomenon, so that the voltage difference between the odd-numbered columns of pixels and the even-numbered columns of pixels is large, and the phenomenon that the brightness of the left-column pixels and the brightness of the right-column pixels are different and the vertical stripe mura are caused when a pure gray scale picture is displayed.
At the end of the third time period T3, the second pixel is charged completely, the second pixel is driven to stop charging, and the other pixels are driven to perform the driving method similar to the present embodiment. It is understood that the first pixel may be a first column of pixels of odd columns of pixels, the second pixel may be a second column of pixels of even columns of pixels, and after the driving of the first pixel and the second pixel is completed, the driving of the third column of pixels, the fourth column of pixels, and the other columns of pixels is performed according to the driving method for driving the first column of pixels and the second column of pixels.
In some embodiments, the driving method further comprises:
at a second initial time within a second time period T2, the odd-numbered row of scanning lines drives the first pixels to charge, and the even-numbered row of scanning lines drives the second pixels to stop precharging;
at a third initial time within the third time period T3, the odd-numbered row of scanning lines drives the first pixel to stop charging, the even-numbered row of scanning lines drives the second pixel to charge, and the second pixel is driven to stop charging at the end of the third time period T3.
Wherein a time period for charging the first pixel is the same as a time period for charging the second pixel.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
An embodiment of the present application further provides a storage medium, where the storage medium stores a computer program, and when the computer program runs on a computer, the computer is caused to execute the driving method in any one of the above embodiments, such as: in a first time period, the odd-numbered scanning lines drive first pixels which are connected with the odd-numbered scanning lines and are precharged to stop precharging, and the even-numbered scanning lines drive second pixels which are connected with the even-numbered scanning lines to be precharged; in a second time period, the odd-numbered scanning lines drive the first pixels to be charged, and the even-numbered scanning lines drive the second pixels to stop precharging; in a third time period, the odd-numbered scanning lines drive the first pixels to stop charging, the even-numbered scanning lines drive the second pixels to charge, and the second pixels are driven to stop charging at the end of the third time period.
In the embodiment of the present application, the storage medium may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like.
It should be noted that, for the driving method of the embodiment of the present application, it can be understood by a person skilled in the art that all or part of the process of implementing the driving method of the embodiment of the present application can be completed by controlling the relevant hardware through a computer program, where the computer program can be stored in a computer readable storage medium, such as a memory of an electronic device, and executed by at least one processor in the electronic device, and during the execution process, the process of the embodiment of the driving method can be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory, a random access memory, etc.
A driving method, a driving circuit, a display panel and a storage medium provided by the embodiments of the present application are described in detail above, and a specific example is applied to illustrate the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (11)
1. A driving method is applied to a display panel and is characterized in that the display panel comprises a plurality of pixels which are distributed in an array mode, one side of each row of pixels is provided with an odd-numbered line, the other side of each row of pixels is provided with an even-numbered line, the odd-numbered line is connected with odd-numbered columns of pixels, the even-numbered line is connected with even-numbered columns of pixels, and one odd-numbered line and one even-numbered line are matched to control one row of pixels; in the driving period of each row of pixels, the driving method comprises the following steps:
in a first time period, the odd-numbered scanning lines drive first pixels which are connected with the odd-numbered scanning lines and are precharged to stop precharging, and the even-numbered scanning lines drive second pixels which are connected with the even-numbered scanning lines to be precharged;
in a second time period, the odd-numbered scanning lines drive the first pixels to be charged, and the even-numbered scanning lines drive the second pixels to stop precharging;
in a third time period, the odd-numbered scanning lines drive the first pixels to stop charging, the even-numbered scanning lines drive the second pixels to charge, and the second pixels are driven to stop charging at the end of the third time period.
2. The driving method according to claim 1, wherein the charging of the first pixel by the odd-numbered row of scanning lines and the stopping of the precharging by the even-numbered row of scanning lines during the second period comprise:
at a second initial moment in a second time period, the odd-numbered rows of scanning lines drive the first pixels to be charged, and the even-numbered rows of scanning lines drive the second pixels to stop precharging;
the driving the first pixel to stop charging by the odd-numbered scanning line, the driving the second pixel to charge by the even-numbered scanning line and stopping charging by the second pixel at the end of the third time period include:
at a third initial time within a third time period, the odd-numbered rows of scanning lines drive the first pixels to stop charging, the even-numbered rows of scanning lines drive the second pixels to charge, and the second pixels are driven to stop charging at the end of the third time period.
3. The driving method according to claim 2, wherein the precharge of the first pixel connected to the odd-numbered row of the scanning line driving circuit is stopped during the first period, and the precharge of the second pixel connected to the even-numbered row of the scanning line driving circuit comprises:
at a first initial time within a first time period, the odd-numbered row of scanning line driving first pixels connected with the odd-numbered row of scanning line driving and pre-charging stops, and the even-numbered row of scanning line driving second pixels connected with the even-numbered row of scanning line driving and pre-charging.
4. The driving method according to claim 3, wherein the duration of the first period is equal to the duration of the second period.
5. The driving method according to claim 1, wherein the precharging of the first pixels connected to the odd-numbered row of scanning line driving and precharging is stopped in the first period, and the precharging of the second pixels connected to the even-numbered row of scanning line driving comprises:
in a first time period, after the even-row scanning lines drive the second pixels to be precharged, the odd-row scanning lines drive the first pixels being precharged to stop precharging.
6. The driving method according to claim 1, wherein the precharging of the first pixels connected to the odd-numbered row of scanning line driving and precharging is stopped in the first period, and the precharging of the second pixels connected to the even-numbered row of scanning line driving comprises:
in a first time period, after the odd-numbered row of scanning lines drive the first pixels which are being precharged to stop precharging, the even-numbered row of scanning lines drive the second pixels to precharge.
7. The driving method according to claim 1, further comprising:
before the first time period, the odd-numbered scanning lines drive the first pixels to carry out pre-charging.
8. A driving circuit applied to a display panel, wherein the display panel comprises a plurality of pixels distributed in an array, the driving circuit comprising:
the scanning line array comprises a plurality of odd scanning lines and a plurality of even scanning lines, wherein one side of each row of pixels is provided with an odd row scanning line, the other side of each row of pixels is provided with an even row scanning line, each odd row scanning line is connected with odd column pixels, each even row scanning line is connected with even column pixels, and one odd row scanning line and one even row scanning line are matched to control one row of pixels;
the driving module controls the odd-numbered scanning lines to drive first pixels which are connected with the odd-numbered scanning lines and are precharged to stop precharging and controls the even-numbered scanning lines to drive second pixels which are connected with the even-numbered scanning lines to precharge in a first time period; in a second time period, controlling the odd-numbered scanning lines to drive the first pixels to be charged, and controlling the even-numbered scanning lines to drive the second pixels to stop precharging; and in a third time period, controlling the odd-numbered scanning lines to drive the first pixels to stop charging, controlling the even-numbered scanning lines to drive the second pixels to charge, and driving the second pixels to stop charging at the end of the third time period.
9. The driving circuit according to claim 8, wherein the plurality of pixels includes a plurality of columns of odd-numbered column pixels and a plurality of columns of even-numbered column pixels alternately arranged;
the driving circuit further comprises a plurality of data lines, each data line is arranged between one column of pixels in odd-numbered columns and one column of pixels in even-numbered columns, and each data line is connected with one column of pixels in odd-numbered columns and one column of pixels in even-numbered columns.
10. A display panel comprising a plurality of pixels arranged in an array and a driver circuit, the driver circuit being as claimed in claim 8 or 9.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the driving method according to any one of claims 1 to 7.
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| CN109785813B (en) * | 2019-03-26 | 2021-01-26 | 京东方科技集团股份有限公司 | Source electrode driving circuit, source electrode driving method, source electrode driving unit, source electrode driver and display device |
| CN110136630B (en) * | 2019-06-18 | 2022-10-04 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN110349550A (en) * | 2019-07-18 | 2019-10-18 | 京东方科技集团股份有限公司 | Image element driving method and its circuit and display device |
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